A car washing large brush air pressure switching device

Abstract

The utility model relates to car washing device technical field, concretely relates to a car washing big brush air pressure switching device has first air pressure pass valve, second air pressure pass valve, check valve and air cylinder, air cylinder is connected with car washing big brush machinery, the air outlet of first air pressure pass valve and second air pressure pass valve is connected with the first air hole of air cylinder, the air inlet of first air pressure pass valve is connected with the second air hole of air cylinder, check valve sets up on second air pressure pass valve, in this application, when first air pressure pass valve and second air pressure pass valve are the air cylinder ventilation, will make air cylinder rod push out, and then will stop ventilation, because the check valve is set up on second air pressure pass valve, will make the air in the air cylinder cut off the air in the air cylinder, lead to the air pressure in the air cylinder become small, thereby make the car washing big brush with the shape of vehicle brush washes the vehicle.

Description

Technical Field

[0001] This utility model relates to the technical field of car wash equipment, specifically to a car wash brush air pressure switching device. Background Technology

[0002] After a vehicle enters the car wash machine, the 2-position 5-way valve is energized, closing the large brush. Once the vehicle reaches its designated position, the valve rotates to begin washing from the front. The 2-position 5-way valve is connected to two pressure gauges. When gauge one is de-energized, the cylinder pulls the brush back to its original position. When gauge two is energized, the cylinder pushes the brush out, closing it. After the 2-position 5-way valve is energized, gauge two continuously outputs pressure. If the vehicle tries to push the brush away, the excessive pressure on gauge two will cause the brush to be squeezed out of the vehicle. Reducing the pressure will prevent the brush from being pushed out. The only solution is to use a PLC program to add time points; when the time is up, valve one is de-energized, pulling the brush back. The brush cannot be adjusted according to the vehicle model. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a car wash brush air pressure switching device to overcome the problems existing in the current technology.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: This application provides a car wash brush air pressure switching device, including: a first air pressure valve, a second air pressure valve, a one-way valve, and a cylinder; The cylinder is mechanically connected to the car wash brush. The outlets of the first and second air pressure valves are connected to the first air port of the cylinder, and the inlet of the first air pressure valve is connected to the second air port of the cylinder. The one-way valve is installed on the second air pressure valve.

[0005] Furthermore, the above-described device also includes: a first air pressure detection device and a second air pressure detection device; The first air pressure detection device is connected to the first air pressure valve; The second air pressure detection device is connected to the second air pressure valve.

[0006] Furthermore, in the device described above, the first pneumatic valve is a first two-position five-way valve.

[0007] Furthermore, in the device described above, the second pneumatic valve is a second two-position five-way valve.

[0008] Furthermore, in the device described above, the RA passages of the first two-position five-way valve and the second two-position five-way valve are respectively connected to the first air port of the cylinder. The BP passage of the first two-position five-way valve is connected to the second air port of the cylinder; The one-way valve is located at the P port of the AP passage of the second two-position five-way valve.

[0009] The beneficial effects of this utility model are as follows: This application includes a first air pressure valve, a second air pressure valve, a one-way valve, and a cylinder; the cylinder is mechanically connected to the car wash brush; the air outlets of the first and second air pressure valves are connected to the first air port of the cylinder, and the air inlet of the first air pressure valve is connected to the second air port of the cylinder; the one-way valve is disposed on the second air pressure valve. In this application, when the first and second air pressure valves supply air to the cylinder, the cylinder rod will be pushed out, and then the air supply will stop. Because the second air pressure valve is provided with a one-way valve, the air in the cylinder will be trapped, resulting in a decrease in the air pressure in the cylinder, thereby causing the car wash brush to follow the shape of the car and wash the vehicle. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of an embodiment of the air pressure switching device for a large car wash brush according to this utility model; Figure 2 This is a schematic diagram of another embodiment of the air pressure switching device for a car wash brush according to this utility model. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0013] Figure 1 This is a schematic diagram of one embodiment of the air pressure switching device for a car wash brush according to this utility model. Please refer to... Figure 1 This embodiment may include: First air pressure valve, second air pressure valve, check valve and cylinder; The cylinder is mechanically connected to the car wash brush. The outlets of the first and second air pressure valves are connected to the first air port of the cylinder, and the inlet of the first air pressure valve is connected to the second air port of the cylinder. The one-way valve is installed on the second air pressure valve.

[0014] It is understood that this application includes a first air pressure valve, a second air pressure valve, a one-way valve, and a cylinder; the cylinder is mechanically connected to the car wash brush; the air outlets of the first and second air pressure valves are connected to the first air port of the cylinder, and the air inlet of the first air pressure valve is connected to the second air port of the cylinder; the one-way valve is disposed on the second air pressure valve. In this application, when the first and second air pressure valves supply air to the cylinder, the cylinder rod will be pushed out, and then the air supply will stop. Because the second air pressure valve is provided with a one-way valve, the air in the cylinder will be trapped, resulting in a decrease in the air pressure in the cylinder, thereby causing the car wash brush to follow the shape of the car and wash the vehicle.

[0015] Preferably, a first air pressure detection device and a second air pressure detection device; The first air pressure detection device is connected to the first air pressure valve; The second air pressure detection device is connected to the second air pressure valve.

[0016] Understandably, both the first and second air pressure detection devices have air pumps that supply air to the first and second air pressure valves. When the large car wash brush needs to extend, the air pumps provide high air pressure, which is then supplied to the first air port of the cylinder through the first and second air pressure valves. This causes the cylinder rod to extend, thereby extending the large car wash brush.

[0017] Preferably, the first pneumatic valve is a first two-position five-way valve.

[0018] Preferably, the second pneumatic valve is a second two-position five-way valve.

[0019] Preferably, the RA passages of the first two-position five-way valve and the second two-position five-way valve are respectively connected to the first air port of the cylinder; The BP passage of the first two-position five-way valve is connected to the second air port of the cylinder; The one-way valve is located at the P port of the AP passage of the second two-position five-way valve.

[0020] It is understandable that, such as Figure 2 As shown, Figure 2This is a schematic diagram of another embodiment of the air pressure switching device for a car wash brush according to this utility model. At the start of the car wash, the first and second position five-way valves open simultaneously, meaning their RA passages are connected at the same time. This begins to supply high-pressure air to the first air port of the cylinder. Simultaneously, air from the other end of the cylinder is discharged through the second air port via the BP passage of the first and second position five-way valves, causing the cylinder rod to extend. Then, the second position five-way valve stops supplying air to the cylinder. Because the P port of the AP passage of the second position five-way valve is equipped with a check valve, all the air in the cylinder is not discharged through the first air port, even if the air pressure in the cylinder decreases. This allows the cylinder rod to retract according to the shape of the car, enabling the car wash brush to follow the shape of the vehicle while washing it.

[0021] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0022] It should be noted that in the description of this utility model, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means at least two.

[0023] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of the preferred embodiments of the present invention includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order according to the functions involved, as should be understood by those skilled in the art to which embodiments of the present invention pertain.

[0024] It should be understood that the various parts of this utility model can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0025] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0026] Furthermore, the functional units in the various embodiments of this utility model can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0027] The storage media mentioned above can be read-only memory, disk, or optical disk, etc.

[0028] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A car wash brush air pressure switching device, characterized in that, include: First air pressure valve, second air pressure valve, check valve and cylinder; The cylinder is mechanically connected to the car wash brush. The outlets of the first and second air pressure valves are connected to the first air port of the cylinder, and the inlet of the first air pressure valve is connected to the second air port of the cylinder. The one-way valve is installed on the second air pressure valve.

2. The apparatus according to claim 1, characterized in that, Also includes: First air pressure detection device and second air pressure detection device; The first air pressure detection device is connected to the first air pressure valve; The second air pressure detection device is connected to the second air pressure valve.

3. The apparatus according to claim 2, characterized in that, The first pneumatic valve is a first two-position five-way valve.

4. The apparatus according to claim 3, characterized in that, The second pneumatic valve is a second two-position five-way valve.

5. The apparatus according to claim 4, characterized in that, The RA passages of the first two-position five-way valve and the second two-position five-way valve are respectively connected to the first air port of the cylinder; The BP passage of the first two-position five-way valve is connected to the second air port of the cylinder; The one-way valve is located at the P port of the AP passage of the second two-position five-way valve.

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