Internal air control assembly of pneumatic equipment
By setting a sealing sleeve, mixing ring and transmission shaft in the paint atomization chamber of the pneumatic equipment to control the rotation of the mixing ring, the problem of low mixing efficiency in existing pneumatic spraying equipment is solved, and more efficient paint and high-pressure gas mixing is achieved, and the service life of the sprayed parts is extended.
Patent Information
- Application Number
- CN202421372908.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-06-17
AI Technical Summary
In existing pneumatic spraying equipment, the mixing efficiency of high-pressure air and paint is low, resulting in small agglomeration on the surface of the sprayed parts, affecting the service life of the metal parts.
An internal air control assembly of a pneumatic equipment is designed. By setting a sealing sleeve, mixing ring and transmission shaft in the paint atomization chamber, the rotation of the mixing ring is controlled by the cooperation of the ventilation column and the sealing plate to ensure that the paint and high-pressure gas are fully mixed.
It improves the mixing efficiency of paint and high-pressure gas, avoids the generation of small nodules, extends the smoothing time of the sprayed surface, and improves the practicality of the equipment.
Smart Images
Figure CN223010835U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pneumatic equipment, in particular to an internal control air assembly of a pneumatic equipment. Background Technique
[0002] A paint spray gun, as the name implies, "spray" means spraying and painting, and "paint" means paint, that is, coating. A paint spray gun is a tool for spraying paint, used for surface treatment of products, and is a kind of coating equipment. It atomizes the paint into fine paint droplets through compressed air and sprays them onto the surface of the object to be painted under the drive of air flow. It mainly consists of a spray cap, a nozzle, a needle valve and a gun body. At the same time, it needs to be externally connected to a pneumatic device, such as a pressure tank, a pressure barrel, a pump, etc. Compared with traditional manual painting, the paint spray gun is more time-efficient, more beautiful, and the efficiency is 5-10 times higher than brush painting. The paint film is delicate, smooth and uniform.
[0003] During the use of pneumatic spraying equipment, since the paint itself is relatively viscous, it usually needs to be atomized through the cooperation of compressed air and then sprayed onto the surface of the object to protect the surface of the object. However, during the use of some spray guns, the mixing efficiency of high-pressure air and paint is relatively low, which will cause small lumps to appear on the surface of the sprayed parts. After drying and hardening, these small nodules are easy to fall off or be scratched by external forces. After some nodules fall off, the metal surface will be exposed, which will reduce the protection effect on the metal and affect the service life of the metal parts. Therefore, we propose an internal control air assembly of a pneumatic equipment. Content of the Utility Model
[0004] Aiming at the deficiencies of the prior art, the utility model provides an internal control air assembly of a pneumatic equipment, which solves the problems put forward in the above background technique.
[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: an internal control air assembly of a pneumatic equipment, including a pneumatic cavity, a one-way flow-limiting cavity is connected to the rear of the pneumatic cavity, a paint atomization cavity is connected to the rear end of the one-way flow-limiting cavity, a spray head is fixedly sleeved outside the paint atomization cavity, a support frame is fixedly sleeved inside the pneumatic cavity, a spiral sleeve is movably sleeved inside the support frame, a plugging piece is movably connected to the top surface of the pneumatic cavity, a ventilation column is movably sleeved near the rear of the top surface of the pneumatic cavity, a plugging sleeve is movably sleeved inside the paint atomization cavity, a mixing ring is movably supported in front of the plugging sleeve, and a transmission shaft is fixedly connected to the front end of the mixing ring.
[0006] Optionally, a support spring is fixedly connected to the rear of the plugging sleeve, a connecting rod is fixedly installed on the rear of the plugging sleeve, a magnetic metal piece is connected to the rear end of the connecting rod, and an electromagnetic piece is fixedly connected to the front of the paint atomization cavity.
[0007] Optionally, the spiral sleeve is movably sleeved outside the front end of the transmission shaft, and the vertical cross-section of the front end of the transmission shaft is non-circular and special-shaped.
[0008] Optionally, a through groove with a diameter value larger than that of the ventilation column is formed inside the plugging piece, and a ventilation opening penetrating through the front and back is formed inside the ventilation column.
[0009] Optionally, an exhaust port is formed outside the paint atomization chamber, the plugging sleeve is movably sleeved inside the exhaust port, and the transmission shaft is movably sleeved inside the inner cavity of the one-way flow-limiting chamber.
[0010] Optionally, a partition sleeve is fixedly installed at the rear end of the paint atomization chamber, and the electromagnetic sheet and the magnetic metal sheet are located inside the partition sleeve.
[0011] The utility model provides an internal control air assembly of a pneumatic device, which has the following beneficial effects:
[0012] 1. In the internal control air assembly of the pneumatic device, a plugging sleeve is movably sleeved inside the paint atomization chamber, a mixing ring is movably sleeved inside the plugging sleeve, a transmission shaft is connected to the front end of the mixing ring, so that the transmission shaft extends into the inner cavity of the pneumatic chamber, a spiral sleeve is movably supported by a support frame in the inner cavity of the pneumatic chamber, and the spiral sleeve is movably sleeved outside the transmission shaft. By using the cooperation of the ventilation column and the plugging piece, the rotation of the spiral sleeve can be controlled, and then the rotation of the mixing ring can be controlled, so that the paint and the high-pressure gas are fully atomized and mixed in the inner cavity of the paint atomization chamber, avoiding the low efficiency of natural mixing.
[0013] 2. In the internal control air assembly of the pneumatic device, the plugging sleeve is supported by a support spring at the rear of the inner cavity of the paint atomization chamber, and a magnetic metal sheet extending outside the paint atomization chamber is connected to the rear of the plugging sleeve through a connecting rod. By arranging the electromagnetic sheet, the opening and closing of the exhaust port outside the paint atomization chamber can be controlled, so as to limit the mixing time, ensure the mixing efficiency, effectively avoid the generation of small nodules, and at the same time effectively reduce the probability of blockage. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic structural diagram of the utility model;
[0015] Figure 2 is a schematic structural diagram of the disassembled utility model;
[0016] Figure 3 is a schematic structural diagram of the pneumatic chamber of the utility model;
[0017] Figure 4 is a schematic structural diagram of the paint atomization chamber of the utility model.
[0018] In the figure: 1, pneumatic chamber; 2, one-way flow-limiting chamber; 3, paint atomization chamber; 4, spray head; 5, support frame; 6, spiral sleeve; 7, ventilation column; 8, sealing piece; 9, sealing sleeve; 10, support spring; 11, connecting rod; 12, magnetic metal sheet; 13, mixing ring; 14, electromagnetic sheet; 15, transmission shaft. Specific implementation manner
[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.
[0020] Please refer to Figures 1 to 4, the present utility model provides a technical solution: an internal control air assembly of a pneumatic device, including a pneumatic chamber 1. A one-way flow-limiting chamber 2 is connected to the rear of the pneumatic chamber 1. The rear end of the one-way flow-limiting chamber 2 is connected to a paint atomization chamber 3. An exhaust port is provided on the outer side of the paint atomization chamber 3. A sealing sleeve 9 is movably sleeved inside the exhaust port. A transmission shaft 15 is movably sleeved inside the one-way flow-limiting chamber 2. The one-way flow-limiting chamber 2 functions to limit the flow of air unidirectionally. The high-pressure air in the inner cavity of the pneumatic chamber 1 can be unidirectionally restricted from entering the inside of the paint atomization chamber 3 through the one-way flow-limiting chamber 2 for mixing, and at the same time, it effectively prevents the paint in the inner cavity of the paint atomization chamber 3 from entering the inner cavity of the pneumatic chamber 1. The sealing sleeve 9 can seal the outside of the paint atomization chamber 3 to prevent paint leakage, and at the same time ensure the air pressure inside the paint atomization chamber 3, thereby ensuring the mixing efficiency. A spray head 4 is fixedly sleeved on the outside of the paint atomization chamber 3. A support frame 5 is fixedly sleeved inside the pneumatic chamber 1. A spiral sleeve 6 is movably sleeved inside the support frame 5. The spiral sleeve 6 is movably sleeved outside the front end of the transmission shaft 15. The vertical cross-section of the front end of the transmission shaft 15 is non-circular and irregular. The spiral sleeve 6 functions to control the rotation of the transmission shaft 15. By using the spiral sleeve 6, the transmission shaft 15 can be driven to rotate, and then when the mixing ring 13 rotates, the paint in the inner cavity of the paint atomization chamber 3 can be fully mixed, improving the mixing efficiency of the device, effectively avoiding the appearance of small nodules, ensuring the smoothness of the nozzle and the smoothness of the surface of the sprayed part. A sealing piece 8 is movably connected to the top surface of the pneumatic chamber 1. A through groove with a diameter larger than that of the air exchange column 7 is provided inside the sealing piece 8. An air exchange port penetrating through the front and rear is provided inside the air exchange column 7. The sealing piece 8 functions to limit the position of the air exchange column 7, can relieve pressure through the air exchange column 7, and at the same time can guide the rotation of the spiral sleeve 6, control the rotation of the spiral sleeve 6 by using the flowing air, and then control the rotation of the transmission shaft 15, enabling the mixing ring 13 to rotate, thereby driving the stable mixing of the paint, facilitating the use of the device, and improving the practicality of the device. An air exchange column 7 is movably sleeved on the top surface of the pneumatic chamber 1 near the rear. A sealing sleeve 9 is movably sleeved inside the inner cavity of the paint atomization chamber 3. The front of the sealing sleeve 9 movably supports a mixing ring 13. The front end of the mixing ring 13 is fixedly connected to a transmission shaft 15. The irregular setting of the front end of the transmission shaft 15 enables the spiral sleeve 6 to drive the transmission shaft 15 to rotate, thereby assisting in the mixing of high-pressure gas and paint, and effectively improving the utilization rate of paint.
[0021] A support spring 10 is fixedly connected to the rear of the plugging sleeve 9. A connecting rod 11 is fixedly installed on the rear of the plugging sleeve 9. The rear end of the connecting rod 11 is connected to a magnetic metal sheet 12. An electromagnetic sheet 14 is fixedly connected to the front of the paint atomization chamber 3. The cooperation of the connecting rod 11 and the magnetic metal sheet 12 can support the plugging sleeve 9. The plugging sleeve 9 is used to plug the exhaust port outside the paint atomization chamber 3, which is convenient for the use of the equipment. At the same time, the setting of the electromagnetic sheet 14 can control the opening and closing of the exhaust port, limit the mixing time, and ensure the full atomization of the paint. A partition sleeve is fixedly installed at the rear end of the paint atomization chamber 3. The electromagnetic sheet 14 and the magnetic metal sheet 12 are located inside the partition sleeve.
[0022] In summary, for the internal control air assembly of this pneumatic device, during use, first rotate the plugging piece 8 so that the opening of the plugging piece 8 rotates above the air exchange column 7. Subsequently, the plugging piece 8 no longer restricts the air exchange column 7. Air and paint are respectively supplied to the inner cavity of the pneumatic chamber 1 and the inner cavity of the paint atomization chamber 3 through the air supply and the paint pipe, so that the air pressure in the inner cavity of the pneumatic chamber 1 is greater than the external air pressure. The air in the inner cavity of the pneumatic chamber 1 will continuously be discharged outward through the air exchange column 7. At the same time, the opening of the air exchange column 7 will cause the air pressure in the inner cavity of the pneumatic chamber 1 to still be greater than the external air pressure. The flowing gas will drive the spiral sleeve 6 to rotate in the inner cavity of the pneumatic chamber 1, and then drive the transmission shaft 15 to rotate. The transmission shaft 15 will transmit the torque to the mixing ring 13, so that the mixing ring 13 rotates in the inner cavity of the paint atomization chamber 3. At the same time, the high-pressure gas in the inner cavity of the pneumatic chamber 1 will enter the inner cavity of the paint atomization chamber 3 through the one-way flow-limiting chamber 2, increasing the air pressure in the inner cavity of the paint atomization chamber 3. The cooperation of the mixing ring 13 can fully mix the high-pressure air and paint, ensuring the atomization efficiency. Subsequently, after mixing for a certain period of time, control the electromagnetic sheet 14 to cut off the power, so that the electromagnetic sheet 14 no longer adsorbs the magnetic metal sheet 12. The high-pressure gas will push the support spring 10 to compress, so that the plugging sleeve 9 exposes the exhaust port. Subsequently, the atomized paint will be sent to the inner cavity of the spray head 4. The electromagnetic sheet 14 is used to control the activities of the magnetic metal sheet 12 and the plugging sleeve 9, so that the exhaust port is closed again for the next stage of mixing. Use the pneumatic assist spray path to cooperate with the spray head 4 for spraying for a period of time, and cycle in turn, that's all.
[0023] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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. Therefore, it should not be construed as a limitation to the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. Moreover, the terms "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.
[0024] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. An internal control air assembly of a pneumatic device, comprising a pneumatic chamber (1), characterized in that: The rear of the pneumatic cavity (1) is connected to a one-way flow limiting cavity (2), the rear end of the one-way flow limiting cavity (2) is connected to a paint atomizing cavity (3), the outer side of the paint atomizing cavity (3) is fixedly sleeved with a spray head (4), the inner cavity of the pneumatic cavity (1) is fixedly sleeved with a support frame (5), the inner part of the support frame (5) is movably sleeved with a spiral sleeve (6), the top surface of the pneumatic cavity (1) is movably connected to a blocking piece (8), the top surface of the pneumatic cavity (1) near the rear is movably sleeved with a ventilation column (7), the inner cavity of the paint atomizing cavity (3) is movably sleeved with a blocking sleeve (9), the front of the blocking sleeve (9) is movably supported by a mixing ring (13), and the front end of the mixing ring (13) is fixedly connected to a transmission shaft (15).
2. The internal control air assembly of a pneumatic device according to claim 1, characterized in that: A support spring (10) is fixedly connected to the rear of the blocking sleeve (9), a connecting rod (11) is fixedly installed at the rear of the blocking sleeve (9), a magnetic metal sheet (12) is connected to the rear end of the connecting rod (11), and an electromagnetic sheet (14) is fixedly connected to the front of the paint atomization chamber (3).
3. The internal control air assembly of a pneumatic device according to claim 1, characterized in that: The spiral sleeve (6) is movably sleeved on the outside of the front end of the transmission shaft (15), and the vertical section of the front end of the transmission shaft (15) is non-circular and irregular.
4. The internal control air assembly of a pneumatic device according to claim 1, characterized in that: The sealing piece (8) is provided with a through groove having a diameter greater than that of the ventilation column (7), and the ventilation column (7) is provided with a ventilation port that penetrates from front to back.
5. The internal control air assembly of a pneumatic device according to claim 1, characterized in that: An exhaust port is provided on the outside of the paint atomization chamber (3), the blocking sleeve (9) is movably sleeved on the inside of the exhaust port, and the transmission shaft (15) is movably sleeved on the inner cavity of the one-way flow limiting chamber (2).
6. The internal control air assembly of a pneumatic device according to claim 2, characterized in that: A separation sleeve is fixedly mounted at the rear end of the paint atomization chamber (3), and the electromagnetic sheet (14) and the magnetic metal sheet (12) are located inside the separation sleeve.