A liquid supply device for an automatic car washer

Abstract

The utility model discloses a kind of liquid supply equipment for automatic car washer, including clean water tank, fixedly arranged in the small-diameter pipeline and large-diameter pipeline of clean water tank side wall, the small-diameter pipeline and large-diameter pipeline are all with the inside communication of clean water tank arrangement, the inner diameter of small-diameter pipeline is less than the inner diameter of large-diameter pipeline, the end portion of small-diameter pipeline and large-diameter pipeline far from clean water tank side is fixedly connected with the end of through pipe, the other end of through pipe is fixedly connected with drain pipe one, the other end of drain pipe one is fixedly connected with water pump, small-diameter pipeline and large-diameter pipeline inside are respectively provided with rotatable small-diameter ball valve and large-diameter ball valve.In the utility model, through driving assembly can drive the synchronous rotation of gear one and gear two, i.e. It can drive the synchronous rotation of small-diameter ball valve and large-diameter ball valve, realize the intermittent opening of small-diameter pipeline and large-diameter pipeline, complete the switching of different water pressure state, to meet the cleaning demand of different positions of automobile.

Description

Technical Field

[0001] This utility model relates to the field of automatic car wash machine technology, specifically to a liquid supply device for an automatic car wash machine. Background Technology

[0002] The liquid supply equipment of an automatic car wash machine is the core system for accurately delivering media such as car wash liquid, clean water, and wax. The clean water tank of the automatic car wash machine is the core water storage component of the liquid supply equipment, which temporarily stores clean water (tap water, softened water, or filtered water) to prevent car wash interruptions caused by fluctuations in water pressure (such as a sudden stop in tap water or a sudden drop in water pressure), thus ensuring the continuity of liquid supply.

[0003] In the liquid supply system of an automatic car wash, if the inner diameter of the pipe is fixed and the water pressure is not adjustable, it will cause defects. The mud and sand (including road oil) in the tire grooves and wheel spoke gaps have strong adhesion. If the water pressure is lower than 6MPa, the water flow cannot penetrate the gaps, resulting in "dark spots remaining after rinsing". When the water pressure exceeds 8MPa, the tiny sand particles carried by the high-speed water flow will form a "water sandpaper effect", producing sunburst or hairline scratches on the car's paint surface (especially noticeable on dark paint). Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a liquid supply device for automatic car wash machines, solving the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a liquid supply device for an automatic car wash machine, comprising a clean water tank, a small-diameter pipe and a large-diameter pipe fixedly installed on the side wall of the clean water tank, wherein both the small-diameter pipe and the large-diameter pipe are connected to the interior of the clean water tank, the inner diameter of the small-diameter pipe is smaller than the inner diameter of the large-diameter pipe, and the ends of the small-diameter pipe and the large-diameter pipe away from the clean water tank are jointly and fixedly connected to a guide pipe, the other end of the guide pipe is fixedly connected to a drain pipe, and the other end of the drain pipe is fixedly connected to a water pump;

[0008] The small-diameter pipe and the large-diameter pipe are respectively equipped with a rotatable small-diameter ball valve and a large-diameter ball valve, which are opened intermittently.

[0009] Preferably, a rotating shaft is fixedly connected to the top center of the small-diameter ball valve, and a gear is fixedly connected to the upper end of the rotating shaft. A rotating shaft is fixedly connected to the top center of the large-diameter ball valve, and a gear is fixedly connected to the upper end of the rotating shaft. A drive assembly is provided on the clean water tank to drive the gears one and two to rotate simultaneously.

[0010] Preferably, the drive assembly includes two brackets fixed to the side wall of the clean water tank, a screw is rotatably inserted between the two brackets and a guide rod is fixedly connected thereto, a nut block is threaded on the screw, the guide rod is movably inserted through the nut block, and a rack is fixedly connected to the end of the nut block, the rack simultaneously meshing with gear one and gear two.

[0011] Preferably, the drive assembly further includes a servo motor fixedly mounted on the side wall of one of the brackets, and the output end of the servo motor is fixedly connected to the end of the screw via a coupling.

[0012] Preferably, the outlet end of the water pump is fixedly connected to a second drain pipe, and the second drain pipe is generally L-shaped.

[0013] Preferably, an inlet pipe is fixedly connected to the top of the clean water tank, and the inlet pipe is configured to communicate with the interior of the clean water tank.

[0014] (III) Beneficial Effects

[0015] This utility model provides a liquid supply device for automatic car wash machines, which has the following beneficial effects:

[0016] 1. In this utility model, the intermittent opening of small-diameter and large-diameter pipes is achieved through rotatable small-diameter ball valves and large-diameter ball valves. Under the premise of fixed flow rate, the relationship between pipe diameter and flow velocity conforms to the continuity equation (basic law of fluid mechanics): the smaller the pipe diameter, the faster the flow velocity; the larger the pipe diameter, the slower the flow velocity. That is, when the small-diameter pipe is opened, the water pressure is high and the flow velocity is fast, which is suitable for cleaning the tire position; when the large-diameter pipe is opened, the water pressure is low and the flow velocity is slow. The small-diameter pipe is suitable for cleaning the tire position when it is open, and the large-diameter pipe is suitable for cleaning the paint surface when it is open.

[0017] 2. In this utility model, the drive component can drive gear one and gear two to rotate synchronously, which can drive the small-diameter ball valve and the large-diameter ball valve to rotate synchronously, realize the intermittent opening of the small-diameter pipe and the large-diameter pipe, and complete the switching of different water pressure states to meet the cleaning needs of different parts of the car. Attached Figure Description

[0018] Figure 1 This is a right-side perspective view of a liquid supply device for an automatic car wash machine proposed in this utility model.

[0019] Figure 2 This is a left-side perspective view of a liquid supply device for an automatic car wash machine proposed in this utility model.

[0020] Figure 3 This is a cross-sectional view of a liquid supply device for an automatic car wash machine proposed in this utility model.

[0021] Figure 4 This is a partial structural diagram of a liquid supply device for an automatic car wash machine proposed in this utility model.

[0022] In the diagram: 1. Clean water tank; 2. Small-diameter pipe; 3. Large-diameter pipe; 4. Connecting pipe; 5. Pipeline 1; 6. Water pump; 7. Pipeline 2; 8. Small-diameter ball valve; 9. Large-diameter ball valve; 10. Shaft 1; 11. Shaft 2; 12. Gear 1; 13. Gear 2; 14. Drive assembly; 141. Bracket; 142. Servo motor; 143. Screw; 144. Nut block; 145. Rack; 146. Guide rod; 15. Inlet pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figures 1 to 4 This utility model provides a technical solution: a liquid supply device for an automatic car wash machine, including a clean water tank 1, a small-diameter pipe 2 and a large-diameter pipe 3 fixedly installed on the side wall of the clean water tank 1. The small-diameter pipe 2 and the large-diameter pipe 3 are both connected to the inside of the clean water tank 1. The inner diameter of the small-diameter pipe 2 is smaller than the inner diameter of the large-diameter pipe 3. The ends of the small-diameter pipe 2 and the large-diameter pipe 3 away from the clean water tank 1 are jointly connected to a guide pipe 4. The other end of the guide pipe 4 is fixedly connected to a drain pipe 5. The other end of the drain pipe 5 is fixedly connected to a water pump 6. The power of the water pump 6 is fixed and the drainage flow rate is fixed.

[0025] See Figure 3 The small-diameter pipe 2 and the large-diameter pipe 3 are respectively equipped with a rotatable small-diameter ball valve 8 and a large-diameter ball valve 9, which are opened intermittently.

[0026] The small-diameter ball valve 8 and the large-diameter ball valve 9 are rotatable to achieve intermittent opening of the small-diameter pipe 2 and the large-diameter pipe 3. Under the premise of fixed flow rate, the relationship between pipe diameter and flow velocity conforms to the continuity equation (basic law of fluid mechanics): the smaller the pipe diameter, the faster the flow velocity; the larger the pipe diameter, the slower the flow velocity. That is, when the small-diameter pipe 2 is open, the water pressure is high and the flow velocity is fast, which is suitable for cleaning the tire position; when the large-diameter pipe 3 is open, the water pressure is low and the flow velocity is slow. The small-diameter pipe 2 is suitable for cleaning the tire position when it is open, and the large-diameter pipe 3 is suitable for cleaning the paint surface when it is open.

[0027] When the water pump 6 is working, it draws the liquid inside the clean water tank 1 into the small-diameter pipe 2 or the large-diameter pipe 3, then through the guide pipe 4, the discharge pipe 1 5, and the water pump 6, and finally through the discharge pipe 2 7 to the spraying mechanism of the automatic car wash machine. The above process is the basic cleaning principle and is existing technology, so it will not be described in detail.

[0028] See Figures 1 to 3 A rotating shaft 10 is fixedly connected to the top center of the small-diameter ball valve 8, and a gear 12 is fixedly connected to the upper end of the rotating shaft 10. A rotating shaft 21 is fixedly connected to the top center of the large-diameter ball valve 9, and a gear 23 is fixedly connected to the upper end of the rotating shaft 21. Gear 12 and gear 23 are located above the outside of the small-diameter pipe 2 and the large-diameter pipe 3. A drive assembly 14 is provided on the clean water tank 1 to drive gear 12 and gear 23 to rotate simultaneously.

[0029] When the drive assembly 14 is activated, it can drive the synchronous rotation of gear 12 and gear 2 13, which in turn can drive the synchronous rotation of small-diameter ball valve 8 and large-diameter ball valve 9, thereby realizing the intermittent opening of small-diameter pipe 2 and large-diameter pipe 3, completing the switching of different water pressure states to meet the cleaning needs of different parts of the car.

[0030] See Figure 4 The drive assembly 14 includes two brackets 141 fixed to the side wall of the clean water tank 1, one on each side of the clean water tank 1; a screw 143 is rotatably inserted between the two brackets 141 and a guide rod 146 is fixedly connected thereto; a nut block 144 is threaded on the screw 143; the guide rod 146 is movably inserted through the nut block 144; a rack 145 is fixedly connected to the end of the nut block 144; the rack 145 simultaneously meshes with gear 12 and gear 2 13.

[0031] See Figure 4 The drive assembly 14 also includes a servo motor 142 fixedly mounted on the side wall of one of the brackets 141, and the output end of the servo motor 142 is fixedly connected to the end of the screw 143 via a coupling.

[0032] The servo motor 142 is started, which drives the screw 143 to rotate a certain number of revolutions. The screw 143 drives the nut block 144 and the rack 145 to move linearly a certain distance. The rack 145 drives the gear 12 and gear 13 to rotate a certain angle, which ensures that the small-diameter ball valve 8 or the large-diameter ball valve 9 rotates by 90°, so that the small-diameter pipe 2 is unobstructed and the large-diameter pipe 3 is closed; or so that the small-diameter pipe 2 is closed and the large-diameter pipe 3 is unobstructed. The two states correspond to two water pressure modes.

[0033] It should be noted that, since a servo motor 142 is used, the number of rotations of the screw 143 and the linear displacement distance of the nut block 144 and the rack 145 can be precisely controlled.

[0034] See Figure 2 The outlet end of the water pump 6 is fixedly connected to the second pipe 7, which is L-shaped in general.

[0035] The liquid discharged by the water pump 6 enters the spraying mechanism of the automatic car wash machine through the drain pipe 2 7, and washes the car through the spraying mechanism. The spraying mechanism is not an improvement of this application, so it is not shown in the figure; please refer to the structure of patent publication number CN221820018 U.

[0036] See Figure 1 The top of the clean water tank 1 is fixedly connected to the liquid inlet pipe 15, which is connected to the inside of the clean water tank 1.

[0037] The inlet pipe 15 connects to an external water supply system (such as municipal tap water) to directly introduce water into the clean water tank 1, avoiding manual emptying (large-capacity water tanks require mechanical assistance, and manual filling is extremely inefficient). Manual water filling requires frequent operation, while connecting the inlet pipe 15 to an external water supply system enables automatic or semi-automatic water replenishment, adapting to continuous car wash needs.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A liquid supply device for an automatic car wash machine, characterized in that: Includes a clean water tank (1), a small-diameter pipe (2) and a large-diameter pipe (3) fixedly installed on the side wall of the clean water tank (1). The small-diameter pipe (2) and the large-diameter pipe (3) are both connected to the inside of the clean water tank (1). The inner diameter of the small-diameter pipe (2) is smaller than the inner diameter of the large-diameter pipe (3). The ends of the small-diameter pipe (2) and the large-diameter pipe (3) on the side away from the clean water tank (1) are fixedly connected to a guide pipe (4). The other end of the guide pipe (4) is fixedly connected to a drain pipe (5). The other end of the drain pipe (5) is fixedly connected to a water pump (6). The small-diameter pipe (2) and the large-diameter pipe (3) are respectively equipped with a rotatable small-diameter ball valve (8) and a large-diameter ball valve (9), which are intermittently opened.

2. The liquid supply device for an automatic car wash machine according to claim 1, characterized in that: A rotating shaft (10) is fixedly connected to the top center of the small-diameter ball valve (8), and a gear (12) is fixedly connected to the upper end of the rotating shaft (10). A rotating shaft (11) is fixedly connected to the top center of the large-diameter ball valve (9), and a gear (13) is fixedly connected to the upper end of the rotating shaft (11). A drive assembly (14) is provided on the clean water tank (1) to drive the gear (12) and the gear (13) to rotate simultaneously.

3. The liquid supply device for an automatic car wash machine according to claim 2, characterized in that: The drive assembly (14) includes two brackets (141) fixed to the side wall of the water tank (1). A screw (143) is rotatably inserted between the two brackets (141) and a guide rod (146) is fixedly connected. A nut block (144) is threaded on the screw (143). The guide rod (146) is movably inserted through the nut block (144). A rack (145) is fixedly connected to the end of the nut block (144). The rack (145) meshes with both gear one (12) and gear two (13).

4. A liquid supply device for an automatic car wash machine according to claim 3, characterized in that: The drive assembly (14) also includes a servo motor (142) fixedly mounted on the side wall of one of the brackets (141), and the output end of the servo motor (142) is fixedly connected to the end of the screw (143) via a coupling.

5. A liquid supply device for an automatic car wash machine according to claim 1, characterized in that: The outlet end of the water pump (6) is fixedly connected to the second drain pipe (7), which is L-shaped in general.

6. A liquid supply device for an automatic car wash machine according to claim 1, characterized in that: The top of the clean water tank (1) is fixedly connected to an inlet pipe (15), which is connected to the inside of the clean water tank (1).

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