Swing type blowing device of automatic car washer

By using a drive cylinder and a rotary bearing or bushing to connect the volute housing and the motor in the automatic car wash machine, the transmission structure is simplified, solving the problems of complex assembly and poor stability of existing devices, and achieving a low-cost and highly stable blowing effect.

CN224197730UActive Publication Date: 2026-05-05WUXI YAZHOU AUTOMATION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI YAZHOU AUTOMATION CO LTD
Filing Date
2025-06-26
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

The blower devices of existing automatic car wash machines have complex structures, are inconvenient to assemble, have poor operational stability and high costs, and their transmission structures are prone to deformation and slippage.

Method used

A drive cylinder is used to rotate the volute housing, and the volute housing is connected to the motor through a slewing bearing or bushing, which simplifies the transmission structure. The reciprocating oscillation of the volute housing is controlled by a cylinder.

Benefits of technology

It achieves a simple structure, low cost, and stable operation, ensuring the reliability and stability of the device.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224197730U_ABST
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Abstract

The utility model relates to a car washer, in particular to a swing type blowing device of an automatic car washer, which comprises a blowing frame. The motors are arranged at the two ends of the air blowing frame; the centrifugal fan blades are fixed on the motor; the inner lining plate is arranged on the motor; the volute is movably arranged on the centrifugal fan blades in a sleeving manner; the rotating assembly is respectively connected with the volute and the lining plate; and the driving cylinder is rotationally connected with the air blowing frame and the volute and used for driving the volute to swing in a reciprocating mode. According to the swing type air blowing device of the automatic car washer, the volute is driven by the driving cylinder to rotate, swing air blowing is achieved, the overall structure is simple, cost is low, and operation is stable and reliable.
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Description

Technical Field

[0001] This utility model relates to a car wash machine, and more particularly to an automatic car wash machine with a swing-type blower. Background Technology

[0002] Automatic car washes are widely used due to their cost-effectiveness. Automatic car washes use blowers to dry the car. For example, Chinese patent CN 117533267 A discloses a multi-angle oscillating drying device for a car wash machine. This device uses a splined shaft to drive two bevel gears and two offset connecting rods to rotate two blowers. While this structure reduces the number of motors, the transmission structure is complex, assembly is inconvenient, and the long splined shaft is prone to deformation, leading to slippage in the bevel gear transmission and poor operational stability. Furthermore, the numerous transmission components increase costs, and the corrosion resistance of the bevel gears needs to be improved. Utility Model Content

[0003] To address the aforementioned problems of complex assembly and poor operational stability, this utility model provides an automatic car wash machine swing-type blower, the specific technical solution of which is as follows:

[0004] An automatic car wash machine oscillating blower device includes: a blower frame; a motor located at both ends of the blower frame; centrifugal fan blades fixed to the motor; an inner liner plate located on the motor; a volute housing movably fitted onto the centrifugal fan blades; a rotating assembly connected to the volute housing and the inner liner plate respectively; and a drive cylinder rotatably connected to the blower frame and the volute housing respectively, for driving the volute housing to reciprocate.

[0005] Preferably, it further includes: a first connecting component, which is connected to the rotating component and the volute respectively.

[0006] Furthermore, the first connecting component includes: a connecting ring seat disposed on the rotating component; and a connecting ring plate disposed on the connecting ring seat and connected to the volute, wherein the outer diameter of the connecting ring plate is larger than the outer diameter of the rotating component.

[0007] Preferably, it further includes: a second connecting component, which is connected to the drive cylinder, the volute, and the blower frame respectively.

[0008] Furthermore, the second connecting assembly includes: a second upper connecting seat disposed on the blower frame; a second connecting shaft disposed on the second upper connecting seat and rotatably connected to the tail of the drive cylinder; a second lower connecting seat disposed on the volute housing; and a second U-shaped connector disposed on the drive cylinder and rotatably connected to the second lower connecting seat.

[0009] Preferably, the vortex shell is provided with an air guide shroud.

[0010] Furthermore, the air guide shroud is a conical shroud.

[0011] Furthermore, the air guide cover is equipped with a protective mesh cover.

[0012] Preferably, the drive cylinder includes any one of a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

[0013] Preferably, the rotating assembly includes a slewing bearing or a bushing.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention provides an automatic car wash machine swing-type blower that uses a drive cylinder to drive the volute to rotate, thereby achieving swing blowing. The overall structure is simple, the cost is low, and the operation is stable and reliable. Attached Figure Description

[0016] Figure 1 This is a stereoscopic view from the first perspective of this application;

[0017] Figure 2 This is a stereoscopic view from the second perspective of this application;

[0018] Figure 3 This is a structural diagram of the blower frame after it has been concealed in this application;

[0019] Figure 4 yes Figure 3 The front view;

[0020] Figure 5 yes Figure 3 A sectional view;

[0021] Figure 6 It is an assembly diagram of the volute, cylinder and first connecting assembly;

[0022] Figure 7 This is an assembly diagram of the motor, centrifugal fan blades, and inner liner.

[0023] Figure 8 yes Figure 7 The front view. Detailed Implementation

[0024] The present invention will now be further described with reference to the accompanying drawings.

[0025] like Figures 1 to 8As shown, an automatic car wash machine's swing-type blower device includes a blower frame 1, a motor 4, centrifugal fan blades 5, an inner liner plate 6, a volute 3, a rotating assembly (not shown in the figure), and a drive cylinder 2. The blower frame 1 is slidably mounted on the car wash frame and connected to a lifting device, enabling it to move vertically. The rotating assembly can be a slewing bearing or a bushing; this embodiment uses a slewing bearing as an example. The motor 4 is symmetrically fixed at both ends of the blower frame 1, and the shaft of the motor 4 is fixedly connected to the centrifugal fan blades 5. The inner liner plate 6 is a circular plate and is movably socketed on the shaft of the motor 4. The inner liner plate 6 is also located between the end seat 41 of the motor 4 and the centrifugal fan blades 5. The inner liner plate 6 is fixed to the end seat 41 of the motor 4 by screws and is connected to the inner ring of the slewing bearing. The volute 3 is connected to the outer ring of the slewing bearing, and the centrifugal fan blades 5 are movably located inside the volute 3. One end of the drive cylinder 2 is rotatably connected to the blower frame 1, and the other end is rotatably connected to the volute 3.

[0026] The drive cylinder 2 includes any one of a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder. To reduce costs and simplify control, the drive cylinder 2 may be a pneumatic cylinder.

[0027] The cylinder drives the volute 3 to rotate, realizing reciprocating oscillating air blowing. The control and transmission are simple and reliable, and the cylinder has low cost. At the same time, the rotatable connection between the volute 3 and the motor 4 is realized through the slewing bearing, which makes the structure simple, easy to assemble, and ensures the stability during use, enabling continuous and stable operation.

[0028] The end seat 41 and the inner liner 6 can be connected by a connecting column to adjust the distance between the volute and the end seat 41.

[0029] To facilitate the connection between the volute housing 3 and the slewing bearing, a first connecting assembly 7 is also included. The first connecting assembly 7 is connected to both the slewing bearing and the volute housing 3. Specifically, the first connecting assembly 7 includes a connecting ring seat 72 and a connecting ring plate 71. The connecting ring seat 72 is fixedly connected to the connecting ring plate 71. The connecting ring seat 72 is connected to the outer ring of the slewing bearing. The connecting ring seat 72 can be made of plastic to improve strength and reduce weight. The connecting ring plate 71 is an annular steel plate. The connecting ring plate 71 is connected to the volute housing 3 by screws, and the outer diameter of the connecting ring plate 71 is larger than the outer diameter of the slewing bearing to facilitate the insertion of the volute housing 3 onto the inner liner plate 6. During assembly, the inner ring of the slewing bearing is first fixed to the end seat 41 of the motor 4 with screws. Then, the connecting ring seat 72 is fixedly connected to the outer ring of the slewing bearing with screws. Finally, the volute 3 is inserted into the inner liner plate 6, and the end of the volute 3 abuts against the connecting ring plate 71. The volute 3 is fixed to the connecting ring plate 71 with screws, thus fixing the volute 3. The volute 3 is rotatably connected to the motor 4 through the slewing bearing, and the volute 3 can rotate around the axis of the motor 4. The connecting ring plate 71 and the connecting ring seat 72 facilitate the assembly of the volute 3 and improve the strength of the connection, making it less prone to deformation, thereby ensuring the reliability and stability of the oscillating blower.

[0030] Using bushings results in greater friction than using slewing bearings, but at a lower cost. Two bushings are used: the first bushing connects to the volute 3, and the second bushing connects to the connecting ring seat 72. The first bushing is movably inserted inside the second bushing. A retaining ring is provided at the end of the first bushing to confine it to the second bushing and prevent axial movement of the second bushing.

[0031] To facilitate the connection between the cylinder, the volute 3, and the blower frame 1, a second connecting assembly is also included. This second connecting assembly connects to the cylinder, the volute 3, and the blower frame 1. Specifically, the second connecting assembly includes a second upper connecting seat 22, a second connecting shaft 21, a second lower connecting seat 24, and a second U-shaped connector 23. The second upper connecting seat 22 is fixed to the rotating seat 11 of the blower frame 1 and is rotatably connected to the tail end of the cylinder body via the second connecting shaft 21. The second lower connecting seat 24 is fixed to the connecting ring plate 71 and is connected to the piston rod of the cylinder via the second U-shaped connector 23. The rotating shaft of the second U-shaped connector 23 is rotatably connected to the second lower connecting seat 24.

[0032] To facilitate the installation of the centrifugal fan blades, increase the static pressure of the blower, and prevent air pressure leakage at the air inlet, a guide shroud 32 is fixed to the air inlet of the volute casing 3. The guide shroud 32 is a conical shroud that guides the incoming air into the interior of the centrifugal fan blades 5. The diameter of the air inlet of the volute casing 3 is larger than the outer diameter of the centrifugal fan blades 5, making it easy to install the centrifugal fan blades 5 through the air inlet, and then sealing the air inlet through the guide shroud 32. A protective mesh cover 31 is also included. The protective mesh cover 31 is located at the air inlet end of the guide shroud 32 and is fixed to the volute casing 3 with screws.

[0033] The cylinder is controlled by a solenoid valve to extend and retract the piston rod. The extension and retraction of the piston rod drives the volute 3 to swing back and forth. The cylinder directly drives the volute 3 to rotate, without a transmission structure, which makes the structure simpler and the operation more stable and reliable.

[0034] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.

Claims

1. An automatic car wash machine's swing-type blower device, characterized in that, include: Hair dryer stand (1); Motors (4) are located at both ends of the blower frame (1); Centrifugal fan blades (5) are fixed to the motor (4); The inner lining plate (6) is provided on the motor (4); The vortex shell (3) is movably fitted onto the centrifugal fan blade (5); The rotating assembly is connected to the vortex shell (3) and the inner liner plate (6) respectively; as well as The drive cylinder (2) is rotatably connected to the blower frame (1) and the vortex shell (3) respectively, and is used to drive the vortex shell (3) to swing back and forth.

2. The automatic car wash machine swing-type blower according to claim 1, characterized in that, Also includes: The first connecting component (7) is connected to the rotating component and the vortex shell (3) respectively.

3. The automatic car wash machine swing-type blower according to claim 2, characterized in that, The first connection component (7) includes: Connecting ring seat (72), provided on the rotating assembly; and A connecting ring plate (71) is disposed on the connecting ring seat (72) and connected to the vortex shell (3), and the outer diameter of the connecting ring plate (71) is greater than the outer diameter of the rotating assembly.

4. The automatic car wash machine swing-type blower according to claim 1, characterized in that, Also includes: The second connecting component is connected to the drive cylinder (2), the volute (3) and the blower frame (1) respectively.

5. The automatic car wash machine swing-type blower according to claim 4, characterized in that, The second connection component includes: The second upper connecting seat (22) is provided on the blower frame (1); The second connecting shaft (21) is disposed on the second upper connecting seat (22) and is rotatably connected to the tail of the drive cylinder (2); The second lower connecting seat (24) is provided on the vortex shell (3); and The second U-shaped connector (23) is located on the drive cylinder (2) and is rotatably connected to the second lower connecting seat (24).

6. An automatic car wash machine swing-type blower according to any one of claims 1 to 5, characterized in that, The vortex shell (3) is provided with a wind guide shroud (32).

7. The automatic car wash machine swing-type blower according to claim 6, characterized in that, The air guide shroud (32) is a cone-shaped shroud.

8. The automatic car wash machine swing-type blower according to claim 6, characterized in that, The air guide cover (32) is equipped with a protective mesh cover (31).

9. An automatic car wash machine swing-type blower according to any one of claims 1 to 5, characterized in that, The drive cylinder (2) includes any one of a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

10. An automatic car wash machine swing-type blower according to any one of claims 1 to 5, characterized in that, The rotating assembly includes a slewing bearing or a bushing.

Citation Information

Patent Citations

  • Multi-angle swing air drying device of car washer

    CN117533267A