A flash-off booth for drying water-based paint
By designing a rotating base and angle adjustment components, combined with a seamless steel pipe and nylon sleeve structure, the problems of inconvenient angle adjustment and low drying efficiency of traditional air ducts are solved. This achieves flexible coverage and efficient drying of the air duct, reduces noise, and improves the automation and ease of use of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU PUBLIC TRANSPORT GRP LONGXING AUTOMOBILE TECH SERVICE CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional quick-drying air ducts suffer from problems such as inconvenient angle adjustment, low drying efficiency, and high noise in drying water-based paint surfaces, making it difficult to meet the demands of efficient, uniform, and low-noise modern operations.
By combining a rotating base and angle adjustment components with a seamless steel pipe and nylon sleeve structure, the air duct can be rotated 360° and its vertical angle can be adjusted. It also accelerates airflow and reduces friction noise through the principle of fluid mechanics.
It improves the drying flexibility and coverage of water-based paint surfaces, enhances drying efficiency, reduces operating noise, and increases the automation and ease of use of the equipment.
Smart Images

Figure CN224542230U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water-based paint drying technology, specifically to a quick-drying air duct for drying water-based paint surfaces. Background Technology
[0002] In the field of water-based paint drying, traditional quick-drying ducts generally suffer from technical bottlenecks such as inconvenient angle adjustment and low drying efficiency. Existing equipment mostly uses a fixed-angle duct structure, making it difficult to flexibly adjust according to the paint surface location, resulting in uneven drying or limited coverage. Simultaneously, the internal airflow channel design lacks fluid dynamics optimization, leading to insufficient airflow velocity and turbulence, which fails to effectively accelerate paint surface moisture evaporation. Furthermore, some equipment uses metal inner walls, resulting in high airflow friction noise and poor structural stability, making components prone to loosening or displacement during prolonged use, severely impacting actual drying performance and user experience. These technical deficiencies make traditional ducts unable to meet the demands of efficient, uniform, and low-noise modern operations when facing complex paint drying scenarios, necessitating structural innovation to achieve performance breakthroughs. Utility Model Content
[0003] The purpose of this invention is to provide a quick-drying air duct for drying water-based paint surfaces, thus solving the aforementioned problems.
[0004] This utility model is achieved through the following technical solution:
[0005] A quick-drying air duct for drying water-based paint includes an air duct with an air inlet connected to an air pipe and a rotating base. The rotating base includes a fixed part and a rotating part. The rotating part can rotate within the fixed part, and a vertical support rod is provided at the center of the upper surface of the rotating part. The upper end of the support rod is movably connected to the middle of the air duct and can rotate around the connection point. An angle adjustment component is provided on the support rod below the air duct, and the angle adjustment component is fixedly connected to the lower surface of the air inlet of the air duct.
[0006] Furthermore,
[0007] The fixing part includes a fixing ring and a mounting plate. An annular channel is opened inside the fixing ring along the fixing ring. An annular opening is opened on the inner wall of the fixing ring along the fixing ring corresponding to the annular channel. A first arc-shaped groove is opened on the side wall of the annular channel away from the center of the fixing ring. A horizontal mounting plate is installed below the annular opening on the inner side wall of the bottom of the fixing ring.
[0008] Furthermore,
[0009] The rotating part includes a rotating motor and a rotating circular plate. The rotating motor is installed at the center of the upper surface of the mounting plate and is located in the space formed by the circular plate and the mounting plate. The rotating circular plate has an I-shaped cross-section and enters the annular channel through an annular opening. A second arc-shaped groove, which is the same as the first arc-shaped groove, is opened on the outer side wall of the rotating circular plate.
[0010] Furthermore,
[0011] A ball bearing that matches the second arc-shaped groove and the first arc-shaped groove is provided between the second arc-shaped groove and the first arc-shaped groove.
[0012] Furthermore,
[0013] The air duct includes a seamless steel pipe, a nylon sleeve, and an air pipe. The nylon sleeve is installed inside the seamless steel pipe. The nylon sleeve has a trapezoidal cross-section with a large opening at one end, which serves as the air inlet of the air duct. The air pipe is connected to one end of the seamless steel pipe at the air inlet.
[0014] Furthermore,
[0015] The angle adjustment assembly includes a central mounting plate, a telescopic motor, and an electric telescopic rod. The central mounting plate is horizontally fixed on the support rod and extends horizontally to the air inlet of the duct until it aligns with the end of the seamless steel pipe. The telescopic motor is installed on the upper surface of the central mounting plate, which is aligned with the end of the seamless steel pipe. The telescopic motor is connected to one end of the vertical electric telescopic rod, and the other end of the electric telescopic rod is vertically and movably connected to the seamless steel pipe.
[0016] Furthermore,
[0017] The seamless steel pipe has ribs evenly and symmetrically arranged along its length on its inner surface, and the nylon sleeve has grooves on its outer surface that correspond to the ribs.
[0018] The beneficial effects of this utility model are:
[0019] 1. This utility model uses the fixed part of the rotating base to cooperate with the rotating part, and uses a rotating motor to drive the rotating circular plate to rotate in the annular channel. At the same time, the ball bearings between the first arc groove and the second arc groove reduce rotational friction, so that the air duct can rotate horizontally 360°, realizing the coverage of water-based paint surfaces in different directions. It solves the limitation of the fixed angle of the traditional air duct and improves the flexibility and coverage of the equipment drying operation.
[0020] 2. The angle adjustment component is fixed to the support rod via the central mounting plate. The electric telescopic rod is driven to extend and retract by the telescopic motor, which causes the air duct to tilt and rotate around the connection point. This achieves electric adjustment of the vertical angle, avoiding the inconvenience of manual adjustment. The air duct angle can be precisely adjusted according to the height and position of the paint surface, improving the automation and ease of use of the drying operation.
[0021] 3. The air duct adopts a structure of seamless steel pipe with a trapezoidal cross-section nylon sleeve inside. The large end of the nylon sleeve serves as the air inlet, expanding the airflow intake area. Its tapering trapezoidal structure can accelerate the airflow inside the pipe, increasing the airflow speed by combining fluid mechanics principles, thereby accelerating the airflow velocity on the surface of water-based paint and significantly improving drying efficiency. At the same time, the seamless steel pipe provides structural strength, and the nylon sleeve reduces friction noise between the airflow and the metal pipe wall, combining practicality and durability. Attached Figure Description
[0022] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:
[0023] Figure 1 This is a schematic diagram of the structure of this utility model;
[0024] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0025] Figure 3 This is a schematic diagram of the cross-section of the ventilation duct.
[0026] The attached diagram shows the markings and corresponding component names:
[0027] 1-Air duct, 10-Seamless steel pipe, 11-Nylon sleeve, 12-Air pipe, 2-Rotating base, 20-Fixing part, 201-Fixing ring, 202-Annular channel, 203-Annular opening, 204-First arc groove, 205-Hosting plate, 21-Rotating part, 210-Rotating motor, 211-Rotating circular plate, 212-Second arc groove, 3-Support rod, 4-Angle adjustment component, 40-Central mounting plate, 41-Telescopic motor, 42-Electric telescopic rod, 5-Ball bearing, 6-Protruding rib, 7-Groove. Detailed Implementation
[0028] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.
[0029] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0031] See the example. Figures 1 to 3 :
[0032] A quick-drying air duct for drying water-based paint surfaces includes an air duct 1 with an air inlet connected to an air pipe 12 and a rotating base 2. The rotating base 2 includes a fixed part 20 and a rotating part 21. The rotating part 21 can rotate within the fixed part 20, and a vertical support rod 3 is provided at the center of the upper surface of the rotating part 21. The upper end of the support rod 3 is movably connected to the middle of the air duct 1 and can rotate around the connection point. An angle adjustment component 4 is provided on the support rod 3 below the air duct 1. The angle adjustment component 4 is fixedly connected to the lower surface of the air inlet of the air duct 1.
[0033] Furthermore,
[0034] The fixing part 20 includes a fixing ring 201 and a mounting plate 205. An annular channel 202 is formed inside the fixing ring 201 along the fixing ring 201. An annular opening 203 is formed on the inner wall of the fixing ring 201 corresponding to the annular channel 202 along the fixing ring 201. A first arc-shaped groove 204 is formed on the side wall of the annular channel 202 away from the center of the fixing ring 201. A horizontal mounting plate 205 is installed below the annular opening 203 on the inner side wall of the bottom of the fixing ring 201.
[0035] The fixing part 20 provides a stable mounting base and rotation track for the rotating part 21 through the fixing ring 201, the annular channel 202, the annular opening 203, and the first arc groove 204. The annular opening 203 of the annular channel 202 allows the rotating part 21 to be smoothly embedded into the fixing part 20, while the first arc groove 204 cooperates with the second arc groove 212 of the subsequent rotating part 21 to reduce rotational friction through the ball bearings 5, ensuring that the rotating part 21 rotates smoothly within the fixing ring 201, thereby making the rotation of the entire air duct 1 smoother and improving the stability and flexibility of the equipment during use.
[0036] Furthermore,
[0037] The rotating part 21 includes a rotating motor 210 and a rotating circular plate 211. The rotating motor 210 is installed at the center of the upper surface of the mounting plate 205 and is located in the space formed by the rotating circular plate 211 and the mounting plate 205. The rotating circular plate 211 has an I-shaped cross section and enters the annular channel 202 through the annular opening 203. A second arc-shaped groove 212 corresponding to and identical to the first arc-shaped groove 204 is opened on the outer side wall of the rotating circular plate 211.
[0038] The rotating part 21 adopts a rotary motor 210 and an I-shaped rotating circular plate 211. The I-shaped cross-section of the rotating circular plate 211 can be adapted to the space of the annular channel 202. After being inserted through the annular opening 203, the second arc-shaped groove 212 on the outer side is aligned with the first arc-shaped groove 204 of the fixed part 20, and forms a rolling friction structure with the ball bearings 5 to reduce rotational resistance. The rotary motor 210 is mounted on the mounting plate 205 and drives the rotating circular plate 211 to rotate, so that the air duct 1 can rotate 360° to meet the drying needs at different angles and improve the coverage and practicality of the equipment.
[0039] Furthermore,
[0040] A ball bearing 5, matching the second arc groove 212 and the first arc groove 204, is provided between the second arc groove 212 and the first arc groove 204.
[0041] Furthermore,
[0042] The air duct 1 includes a seamless steel pipe 10, a nylon sleeve 11, and an air pipe 12. The nylon sleeve 11 is installed inside the seamless steel pipe 10. The nylon sleeve 11 has a trapezoidal cross-section with a large opening at one end, which serves as the air inlet of the air duct 1. The air pipe 12 is connected to one end of the seamless steel pipe 10 at the air inlet.
[0043] The air duct 1 is a combination of seamless steel pipe 10, nylon sleeve 11 and air pipe 12. The trapezoidal cross section of the nylon sleeve 11 (the large opening is the air inlet) can expand the air intake area and increase the air intake volume. At the same time, the trapezoidal structure helps the airflow to form a stable velocity distribution in the pipe, enhancing the drying effect. When flowing through the contraction section, the flow velocity increases and the static pressure decreases to form a negative pressure to accelerate the flow of gas. The seamless steel pipe 10 provides structural strength, while the nylon sleeve 11 can reduce the friction noise between the airflow and the metal pipe wall, and the material is wear-resistant and easy to maintain.
[0044] In one embodiment, a nylon sleeve 11 is nested inside a seamless steel pipe 10. The nylon sleeve 11 has a trapezoidal cross-section, with the larger end serving as an air inlet connected to the air pipe 12. The airflow input from the air pipe 12 enters through the trapezoidal larger end, forming a gradually narrowing airflow channel inside the nylon sleeve 11, which can accelerate the airflow speed and improve drying efficiency. The seamless steel pipe 10 wraps around the nylon sleeve 11, which not only ensures the rigidity of the air duct 1, but also reduces airflow disturbance noise through the non-metallic inner tube.
[0045] Furthermore,
[0046] The angle adjustment assembly 4 includes a central mounting plate 40, a telescopic motor 41, and an electric telescopic rod 42. The central mounting plate 40 is horizontally fixed on the support rod 3 and extends in the horizontal direction of the air inlet of the air duct 1 to be aligned with the end of the seamless steel pipe 10. The telescopic motor 41 is provided on the upper surface of the central mounting plate 40 aligned with the end of the seamless steel pipe 10. The telescopic motor 41 is connected to one end of the vertical electric telescopic rod 42, and the other end of the electric telescopic rod 42 is vertically and movably connected to the seamless steel pipe 10.
[0047] The angle adjustment component 4, through the cooperation of the central mounting plate 40, the telescopic motor 41 and the electric telescopic rod 42, can realize the electric adjustment of the pitch angle of the air duct 1. When the telescopic motor 41 drives the electric telescopic rod 42 to extend or retract, the air duct 1 rotates with the connection point with the support rod 3 as the fulcrum, which meets the paint drying requirements at different heights and angles, avoids the inconvenience of manual adjustment, and improves the automation level and ease of use of the equipment.
[0048] Furthermore,
[0049] The seamless steel pipe 10 has ribs 6 evenly and symmetrically arranged on its inner surface along its length, and the nylon sleeve 11 has grooves 7 on its outer surface corresponding to the ribs 6.
[0050] The raised ribs 6 on the inner surface of the seamless steel pipe 10 and the grooves 7 on the outer surface of the nylon sleeve 11 cooperate to form a mechanical limiting structure, which can prevent the nylon sleeve 11 from sliding or rotating inside the seamless steel pipe 10, ensuring that the positions of both are fixed and avoiding airflow turbulence or structural loosening caused by sleeve displacement; at the same time, the symmetrical distribution of the raised ribs 6 and the grooves 7 can enhance the stability of the sleeve installation.
[0051] The method of using this utility model is as follows:
[0052] When using the quick-drying air duct 1, first connect the air pipe 12 to the air inlet of the air duct 1. The fixing part 20 of the rotating base 2 provides stable support through the fixing ring 201 and the mounting plate 205. The rotating motor 210 of the rotating part 21 drives the I-shaped rotating disc 211 to rotate in the annular channel 202. At this time, the ball bearings 5 between the first arc groove 204 and the second arc groove 212 reduce rotational friction, so that the air duct 1 can be rotated to adjust the horizontal angle.
[0053] Simultaneously, the telescopic motor 41 of the angle adjustment component 4 drives the electric telescopic rod 42 to extend and retract, causing the air duct 1 to tilt and rotate around the connection point of the support rod 3, thereby achieving vertical angle adjustment. During operation, airflow enters the air duct 1 through the air pipe 12 from the external air supply device. The nylon sleeve 11 inside the air duct 1 has a trapezoidal opening with the larger opening serving as the air inlet. Compared to the smaller opening of the nylon sleeve 11, this increases the air intake area. The trapezoidal tapering structure accelerates the airflow within the nylon sleeve 11. Combined with the limiting and fixing of the groove 7 on the outer surface of the nylon sleeve 11 and the protrusion 6 on the inner surface of the seamless steel pipe 10, stable airflow is ensured. The seamless steel pipe 10 provides structural strength, and the nylon sleeve 11 reduces airflow noise. Ultimately, the high-speed airflow acts on the water-based paint surface, accelerating the airflow velocity and thus accelerating the drying of the water-based paint surface.
[0054] If the air blower 1 cannot cover the entire surface of the device coated with water-based paint at a certain distance, the electric telescopic rod 42 can be repeatedly extended and retracted to ensure that the air blown out by the air blower 1 can cover the entire water-based paint surface.
[0055] The telescopic motor 41 of the angle adjustment component 4 drives the electric telescopic rod 42 to extend and retract, causing the air duct 1 to tilt and rotate around the connection point of the support rod 3, thereby achieving vertical angle adjustment. During operation, airflow enters the air duct 1 through the air pipe 12 from the external air supply device. The nylon sleeve 11 inside the air duct 1 has a trapezoidal opening with the larger opening serving as the air inlet, which increases the air intake area compared to the smaller opening of the nylon tube.
[0056] This utility model achieves horizontal and vertical angle adjustment of the air duct 1 through the mechanical transmission of the rotating base 2 and the electric control of the angle adjustment component 4. Combined with the airflow acceleration structure inside the air duct 1, it improves drying efficiency by utilizing the principles of fluid mechanics while ensuring the flexibility and adjustability of the equipment.
[0057] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A quick-drying air duct for drying water-based paint surfaces, comprising an air duct (1) with an air inlet connected to an air pipe (12) and a rotating base (2), characterized in that, The rotating base (2) includes a fixed part (20) and a rotating part (21). The rotating part (21) can rotate within the fixed part (20), and a vertical support rod (3) is provided at the center of the upper surface of the rotating part (21). The upper end of the support rod (3) is movably connected to the middle of the air duct (1) and can rotate around the connection point. An angle adjustment component (4) is provided on the support rod (3) below the air duct (1), and the angle adjustment component (4) is fixedly connected to the lower surface of the air inlet of the air duct (1).
2. The quick-drying air duct for drying water-based paint surfaces according to claim 1, characterized in that, The fixing part (20) includes a fixing ring (201) and a mounting plate (205). An annular channel (202) is opened in the fixing ring (201) along the fixing ring (201). An annular opening (203) is opened on the inner wall of the fixing ring (201) corresponding to the annular channel (202) along the fixing ring (201). A first arc-shaped groove (204) is opened on the side wall of the annular channel (202) away from the center of the fixing ring (201). A horizontal mounting plate (205) is installed below the annular opening (203) on the inner side wall of the bottom of the fixing ring (201).
3. A quick-drying air duct for drying water-based paint surfaces according to claim 2, characterized in that, The rotating part (21) includes a rotating motor (210) and a rotating circular plate (211). The rotating motor (210) is installed at the center of the upper surface of the mounting plate (205) and is located in the space formed by the rotating circular plate (211) and the mounting plate (205). The rotating circular plate (211) has an I-shaped cross section and enters the annular channel (202) through the annular opening (203). A second arc-shaped groove (212) corresponding to and identical to the first arc-shaped groove (204) is opened on the outer sidewall of the rotating circular plate (211).
4. A quick-drying air duct for drying water-based paint surfaces according to claim 3, characterized in that, A ball bearing (5) matching the second arc groove (212) and the first arc groove (204) is provided between the second arc groove (212) and the first arc groove (204).
5. A quick-drying air duct for drying water-based paint surfaces according to claim 1, characterized in that, The air duct (1) includes a seamless steel pipe (10), a nylon sleeve (11), and an air pipe (12). The seamless steel pipe (10) is fitted with a nylon sleeve (11). The nylon sleeve (11) has a trapezoidal cross-section with a large opening at one end, which serves as the air inlet of the air duct (1). The seamless steel pipe (10) is connected to the air pipe (12) at one end of the air inlet.
6. A quick-drying air duct for drying water-based paint surfaces according to claim 5, characterized in that, The angle adjustment assembly (4) includes a central mounting plate (40), a telescopic motor (41), and an electric telescopic rod (42). The central mounting plate (40) is horizontally fixed on the support rod (3) and extends in the horizontal direction of the air inlet of the air duct (1) to be aligned with the end of the seamless steel pipe (10). The telescopic motor (41) is provided on the upper surface of the central mounting plate (40) aligned with the end of the seamless steel pipe (10). The telescopic motor (41) is connected to one end of the vertical electric telescopic rod (42), and the other end of the electric telescopic rod (42) is vertically and movably connected to the seamless steel pipe (10).
7. A quick-drying air duct for drying water-based paint surfaces according to claim 5, characterized in that, The seamless steel pipe (10) has ribs (6) uniformly and symmetrically arranged along its length on its inner surface, and the nylon sleeve (11) has grooves (7) on its outer surface corresponding to the ribs (6).