Straight handle car washer

Abstract

The present application relates to the technical field of cleaning equipment, and discloses a straight handle car washer, which comprises a cleaning roller assembly, a shell assembly, a battery assembly and a water pump assembly. The front end of the shell assembly is provided with a U-shaped structure to clamp the two ends of the cleaning roller assembly. The U-shaped structure extends to the rear end to form a straight handle with a cavity. The battery assembly is detachably installed in the cavity of the straight handle. The water pump assembly is installed in the shell assembly and electrically connected to the battery assembly. The battery assembly provides power for the water pump assembly. When the cleaning head is relatively heavy and causes the center of gravity of the straight handle car washer to deviate, the straight handle of the straight handle car washer is arranged to be able to more evenly distribute the weight, thereby reducing the user's sense of imbalance when holding the straight handle car washer.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 202410295671.9 entitled "A Straight Handle Car Wash Machine", the contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of cleaning equipment technology, and more particularly to a straight-handle car wash machine. Background Technology

[0003] In modern society, car washing has become a basic requirement for vehicle maintenance. However, traditional car wash equipment has significant limitations and shortcomings due to its design and operation. These devices often require space large enough to accommodate a whole car, and the washing process involves spraying water and cleaning fluid onto the vehicle body, followed by brushing and rinsing with large mechanical rollers. This method not only makes the entire car wash equipment bulky but also consumes a lot of water and electricity, and generates relatively high noise levels. In recent years, with the popularization of floor scrubbers, the technological evolution and iterative development of "water-dust circulation" floor scrubbers have given rise to portable car wash machines. This new type of equipment uses a motor to drive a cleaning drum to scrub the car body, while the built-in water supply system and water tank effectively clean the cleaning drum, thereby achieving the goal of recycling water resources.

[0004] Chinese patent CN218287692U discloses an electric scrubbing vehicle tool, including an electric scrubbing head and a handle connected to the electric scrubbing head. The handle is provided with a circulating water tank for cleaning and collecting water. The circulating water tank includes a tank body with a first cavity. The tank body is provided with an inlet / outlet mechanism for allowing water to enter or exit the first cavity. The tank body is also provided with a pressure relief mechanism connecting the inside and outside of the first cavity. The pressure relief mechanism includes a second cavity and a third cavity that are independently set apart from the first cavity. A filter screen is provided between the second cavity and the first cavity. An air passage component is provided between the third cavity and the second cavity. The third cavity is connected to an exhaust nozzle that connects to the outside.

[0005] However, a problem remains: the cleaning head at one end of the existing portable car washer is relatively heavy, while the handle and the battery-containing body form a near 90-degree bend in the structure. This results in users experiencing difficulty gripping the handle and a poor feel. Furthermore, external impacts can easily cause the electrical connection between the handle and the body to fail. Therefore, a more robust and ergonomically designed handle is needed to reduce user grip pressure and improve comfort, while also strengthening the connection between the handle and the body to enhance structural stability. Summary of the Invention

[0006] In order to overcome the existing technical solutions, the present invention provides a straight handle car wash machine to solve the problems of inconvenient gripping, poor structural stability, and failure of electrical connection with the machine body in the existing portable car wash machine.

[0007] The technical solution adopted by this invention to solve its technical problem is: a straight-handle car wash machine, comprising:

[0008] Cleaning roller assembly;

[0009] The outer casing assembly has a U-shaped structure at its front end to hold both ends of the cleaning roller assembly, and the U-shaped structure extends to the rear end to form a straight cylindrical handle with a cavity, which is a straight handle;

[0010] The battery assembly is detachably installed inside the cavity of the handle;

[0011] The water pump assembly is installed inside the housing assembly and electrically connected to the battery assembly;

[0012] The battery assembly powers the water pump assembly. When the cleaning head is heavier, causing the center of gravity of the straight-handle car washer to shift, the straight handle design can distribute the weight more evenly, reducing the user's feeling of imbalance when holding it.

[0013] In one or more alternative embodiments, the handle has a receiving cavity inside, the battery assembly includes a waterproof part and a docking part, the docking part is detachably installed in the receiving cavity, the docking part has an output end, and the waterproof part closes the opening of the receiving cavity.

[0014] In one or more alternative embodiments, the pump assembly includes an electrical connection and an inlet / outlet water connection, mounted within the housing assembly at the transition point where the U-shaped structure extends towards the straight cylindrical handle at an angle, the electrical connection being resiliently electrically connected to the output.

[0015] In one or more alternative embodiments, the transition effectively mitigates the impact of external shocks on the flexible electrical connection, and the battery assembly and water pump assembly are positioned close to the handle, making the center of gravity of the straight-handle car washer more inclined towards the handle for easier gripping.

[0016] In one or more alternative embodiments, the housing assembly includes a bottom shell and an upper shell, the upper shell covering the bottom shell, and the bottom shell extending forward with a U-shaped structure to clamp both ends of the cleaning roller assembly.

[0017] In one or more alternative embodiments, the straight-handle car wash machine further includes:

[0018] The water tank is detachably snapped onto the upper shell, and provides clean water and collects wastewater through the clean water channel and wastewater channel between the surface of the water tank and the cleaning roller assembly.

[0019] The water pump assembly draws clean water from the water tank and simultaneously pushes wastewater back into the water tank.

[0020] In one or more alternative embodiments, the waterproof part is provided with a snap-fit ​​component, and the side wall of the battery assembly is provided with a connecting groove. The connecting groove extends along the docking port of the battery assembly toward the waterproof part. The battery assembly is positioned and inserted into the receiving cavity of the handle through the connecting groove, and is fixed at the opening of the handle with the snap-fit ​​component.

[0021] In one or more alternative embodiments, the upper part of the bottom shell is open, and the lower part of the bottom shell is bent at an angle at the connection with the handle; the side wall of the bottom shell is provided with a number of positioning parts so that the bottom shell and the upper shell can be detachably connected.

[0022] In one or more alternative embodiments, after the upper shell and the bottom shell are closed, a cavity for installing the water pump assembly is formed inside. The bottom of the cavity is provided with a wire groove for circuit wiring and a pipeline channel for water pipe flow. The pipeline channel includes a water pump suction pipe and a clean water outlet pipe that connect the water pump assembly.

[0023] In one or more alternative embodiments, the cleaning roller assembly includes a cleaning roller, and the water pump assembly delivers clean water from the water tank to the cleaning roller via the water pump suction pipe and the clean water outlet pipe.

[0024] In one or more alternative embodiments, the water pump assembly has a built-in control board, which is electrically connected to the battery assembly through the power terminal of the water pump assembly, and the control board controls the operation of the water pump assembly.

[0025] In one or more alternative embodiments, a control component is provided on the upper shell corresponding to the control board. The control component includes a power on / off button and an indicator light group. The power on / off button controls the start / stop of the water pump assembly and the switching of the working mode through the control board. The indicator light group displays the working status of the straight handle car wash machine through an indicator light source. The indicator light group includes several light guide columns.

[0026] In one or more alternative embodiments, the upper shell is further provided with an installation slot for placing the water tank and a locking mechanism, the water tank being detachably installed in the installation slot, and the locking mechanism being used to lock / unlock the water tank in the installation slot.

[0027] In one or more alternative embodiments, the locking mechanism is integrated with the control component to control the removal and securing of the water tank in the mounting slot.

[0028] In one or more alternative embodiments, a clean water pipe interface and a wastewater recovery port are provided on the bottom shell near the surface of the cleaning roller. The clean water pipe interface is connected to the clean water outlet pipe, and the wastewater recovery port is connected to the water tank through a pipe. The clean water pipe interface and the wastewater recovery port are connected to form a clean water channel and a wastewater channel.

[0029] In one or more alternative embodiments, the bottom shell is further provided with an exhaust outlet and an exhaust pipe, the exhaust outlet being connected to the water tank through the exhaust pipe to balance the pressure inside the water tank.

[0030] In one or more alternative embodiments, the waterproof section is provided with a display panel to monitor the operating status and battery health of the straight handle car washer.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] 1. This invention features a cylindrical straight handle structure that houses the battery assembly. Compared to the existing technology where the handle and battery housing are bent at nearly 90 degrees, the straight handle design of this invention is more ergonomic. When holding the machine, the joints and muscles of the hand are in a more comfortable position. When the cleaning head is heavier, causing the car wash machine's center of gravity to shift, the straight handle design can distribute the weight more evenly, reducing the feeling of imbalance and the effort required for use. At the same time, the straight handle structure is more stable, making it easier to control the direction and force of the car wash machine's movement when holding it, reducing the extra effort required due to unstable control.

[0033] 2. This invention extends the bottom shell of the outer casing assembly to form a straight cylindrical handle, so that the water pump assembly installed inside the outer casing assembly is electrically connected to the battery assembly installed inside the handle. The battery assembly and water pump assembly are integrated and installed at the connection between the handle and the outer casing assembly, which simplifies the circuit design and connection method. This structure reduces deformation under external impact, avoids the problem of easy breakage or loosening between the handle and the outer casing, improves the structural stability of the product, improves the reliability of the electrical connection, and avoids the problem of electrical connection failure.

[0034] The specific technical solution of the present invention and its beneficial effects will be described in detail in the following specific embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0036] Figure 1 This is a front view of the straight handle car wash machine of the present invention;

[0037] Figure 2 for Figure 1 Planar view from direction A;

[0038] Figure 3 This is a left view of the straight-handle car wash machine of the present invention;

[0039] Figure 4 This is a top view of the straight-handle car wash machine of the present invention without the cleaning roller and upper shell installed;

[0040] Figure 5 for Figure 4 Partial section view from D direction;

[0041] Figure 6 for Figure 2 Enlarged view of a section at point B in the middle;

[0042] Figure 7 for Figure 2 Enlarged view of a section at point C;

[0043] Figure 8 This is an exploded view of the straight-handle car wash machine of the present invention;

[0044] Figure 9 This is a perspective view of the straight-handle car wash machine of the present invention without the cleaning roller installed;

[0045] Figure 10 This is a perspective view of the straight-handle car wash machine of the present invention without the cleaning roller installed.

[0046] Explanation of the labels in the diagram

[0047] 10. Water pump assembly; 10A. Power terminal; 10B. Water outlet; 10a. Water outlet pipe; 10b. Water return pipe; 10c. Wiring harness / cable; 100. Control system; 103. Light guide plug; 1031. Light guide post; 106. Silicone button; 108. Sealing ring; 101. Electrode cap; 102. Spring;

[0048] 20. Fuselage;

[0049] 21. Bottom shell; 211. Buckle; 212. Slot; 21A. Cleaning head bottom shell; 21A1. Cleaning head left clamp; 21A2. Cleaning head right clamp; 21A3. Cleaning head bottom shell vent; 21B. Handle; 21C. Wastewater viewing window; 21D. Detachable shovel assembly;

[0050] 22. Upper shell; 22A. Cleaning head upper shell; 22. Body upper shell; 22C. Water tank snap-fit ​​shell;

[0051] 221. Water tank locking mechanism; 2211. Button cap; 2212. Guide post; 2213. Locking spring; 2214. Locking rod; 222. Power on / off button;

[0052] 30. Cleaning roller assembly; 30a. Drive motor; 30b. Cleaning roller;

[0053] 40. Water tank; 40a. Pressure relief and venting pipe;

[0054] 50. Battery assembly; 501. Waterproof part; 5011. Snap-fit ​​part; 5012. Waterproof rubber ring; 502. Connecting part; 503. Connecting groove;

[0055] P, squeeze tip; Q, support tip; M, water guide space; Detailed Implementation

[0056] The claims of the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of the present invention.

[0057] It should be understood that, in the description of the embodiments of the present invention, all directional terms such as "up," "down," "left," "right," "front," and "back" indicate the orientation or positional relationship based on the orientation and positional relationship shown in the accompanying drawings or the orientation or positional relationship commonly used when the product is in use. These terms are only for the purpose of simplifying the description of the present invention and do not explicitly or implicitly suggest that the device, element, or component referred to must have a specific orientation or specific orientational structure, and should not be construed as a limitation of the present invention. They are only used to explain the relative positional relationships and movements between the components shown in the accompanying drawings. When the specific orientation changes, the directional indication may also change accordingly. Regarding processes and methods, unless the specification explicitly states that each step must be performed in sequence, excluding cases where changing the order of steps would prevent the achievement of the corresponding inventive objective, they are all considered to be for the sake of simplicity. The specification only uses the optimal or superior examples selected from various embodiments for illustration.

[0058] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," and "screw-in" should be interpreted broadly. For example, they can refer to a relatively fixed positional relationship between components, or a physically fixed connection between components; they can be detachable connections or integral structures; they can be mechanical connections or electrical signal connections; they can be direct connections or indirect connections through intermediate media or components; they can refer to the internal communication of two elements or the interaction between two elements. Unless otherwise explicitly limited in the specification, other interpretations will not achieve the corresponding functions or effects. For those skilled in the art, the specific meaning of the above terms in this invention can be understood as appropriate according to the specific circumstances.

[0059] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention. The present invention will be further described below with reference to specific embodiments, but these are not intended to limit the present invention.

[0060] The handles of existing portable car wash machines adopt a structure with a near 90-degree bend. For example, Chinese patent CN218536624U discloses a car washing device with a pressure relief function, which includes a body, a housing connected to the front end of the body, and a handle connected to the end of the body. The cleaning mechanism is installed in the housing, and the pump and part of the delivery pipeline in the cleaning fluid delivery mechanism are installed in the body. Part of the delivery pipeline in the cleaning fluid delivery mechanism and a section of the pipeline in the cleaning fluid delivery mechanism that passes through the wiping roller of the cleaning mechanism are installed in the housing. The control circuit board, battery, and display panel of the car washing device are installed in the handle. The body, housing, and handle are all equipped with power harnesses, signal harnesses, and connectors that provide power or sensor signal transmission to the car washing device.

[0061] However, during use, the cleaning head end is relatively heavy, and the user experiences difficulty and poor grip when holding the nearly 90-degree curved handle. Furthermore, external impacts can easily cause the electrical connection between the handle and the main body to fail. Therefore, this invention was made to provide a more stable and ergonomically designed handle to reduce user grip pressure and improve comfort, while also strengthening the connection between the handle and the main body to improve structural stability.

[0062] The present invention will be further described below with reference to specific embodiments, but these are not intended to limit the scope of the invention.

[0063] Figure 1 This is a front view of the straight-handle car wash machine of the present invention. Figure 3 This is a left view of the straight handle car wash machine of the present invention. Figure 9This is a perspective view of the straight handle car wash machine of the present invention without the cleaning roller assembly, which together show the overall external structure of the straight handle car wash machine.

[0064] Figure 2 For straight handle car wash machines Figure 1 A-direction planar view in the middle, Figure 6 for Figure 2 Enlarged view of a section at point B in the middle. Figure 7 for Figure 2 The enlarged view at point C shows the installation structure of the water pump assembly, water tank, cleaning roller assembly, and battery assembly of the straight handle car washer, mounted on the bottom shell of the car washer. It also shows the light guide plug and the corresponding buckle hole for the start button on the upper shell of the straight handle car washer. The view shows the electrical connection structure of the control board of the battery assembly supplying power to the water pump assembly and the water pump. It also shows the water circuit connection structure of the pump of the straight handle car washer, which draws clean water from the water tank and delivers it to the cleaning roller assembly, and collects wastewater from the cleaning roller assembly and delivers it back to the water tank.

[0065] Figure 4 This is a front view of the straight handle car wash machine of the present invention without the cleaning roller and the upper shell installed. It shows the water circuit connection structure of the straight handle car wash machine, which draws clean water from the water tank and delivers it to the cleaning roller assembly, and collects wastewater from the cleaning roller assembly and delivers it back to the water tank. It also shows the control circuit connection structure that supplies power and controls the drive motor that drives the cleaning roller to rotate from the water pump assembly with the built-in control board.

[0066] Figure 5 The straight handle car wash machine of the present invention is in Figure 4 The partial cross-sectional view of the cleaning head in the D direction shown in the image illustrates the water circuit connection structure and water flow direction of the cleaning head of the straight handle car washer.

[0067] Figure 8 This is an exploded view of the straight handle car wash machine of the present invention, showing the installation structure of the two power-taking electrodes of the straight handle car wash machine and the connection structure of the two electrodes to the control board. It also shows the connection relationship between the upper shell, shell body, bottom shell, water pump assembly, water tank, battery assembly and cleaning roller assembly of the straight handle car wash machine.

[0068] Figure 9 This is a perspective view of the straight-handle car wash machine of the present invention without the cleaning rollers installed. Figure 10 This is a perspective view of the straight handle car wash machine of the present invention without the cleaning roller installed, showing the arrangement of multiple vents at the decontamination device of the water tank of the straight handle car wash machine connected to the decontamination device of the top cover assembly.

[0069] like Figure 1-10As shown, the present invention provides a straight-handle car wash machine, which includes a cleaning roller assembly 30, a housing assembly 20, a water tank 40, a battery assembly 50, and a water pump assembly 10. The cleaning roller assembly 30 is rotatable and uses its wet outer surface to elastically press and scrub the car body surface to be cleaned. The housing assembly 20 includes a bottom shell 21 and an upper shell 22. The upper shell 22 covers the bottom shell 21. The bottom shell 21 extends forward with a U-shaped structure to hold both ends of the cleaning roller assembly 30. A straight cylindrical handle 21B extends from the bottom shell 21 to the end. The handle has a receiving cavity inside, and one end of the handle 21B has an opening. The water tank 40 is detachably snapped onto the upper shell 22. The water tank 40 supplies water to the cleaning roller assembly 30 through a clean water channel (not shown in the figure) between the water tank 40 and the surface of the cleaning roller assembly 30. The surface of the cleaning roller assembly 30 is supplied with clean water, and wastewater squeezed out from the surface of the cleaning roller assembly 30 is collected through a wastewater channel (not shown in the figure) between the water tank 40 and the surface of the cleaning roller assembly 30; the battery assembly 50 includes a waterproof part 501 and a docking part 502, the docking part 502 is detachably installed in the receiving cavity of the handle 21B through the opening, the docking part 502 has an output end, and the waterproof part 501 closes the opening; the water pump assembly 10 includes a power connection end 10A and a water inlet and outlet end 10B, and is installed in the housing assembly 20, the power connection end 10A is flexibly electrically connected to the output end of the battery assembly 50; wherein, the battery assembly 50 provides power to the water pump assembly 10, the water pump assembly 10 draws clean water from the water tank 40, and the water tank 40 also collects wastewater.

[0070] Furthermore, such as Figure 2 , Figure 7 As shown, a conductive channel (not shown in the figure) is provided between the upper shell 22 and the bottom shell 21 of the outer shell assembly 20. The water pump assembly 10 is sandwiched in the conductive channel and installed adjacent to the battery assembly 50. The power terminal 10A of the water pump assembly 10 is elastically connected to the output terminal of the battery assembly 50 in the conductive channel. The water inlet and outlet terminals 10B of the water pump assembly 10 are connected to the clean water channel and the sewage channel in the conductive channel, so as to transport the clean water pumped from the water tank 40 to the surface of the cleaning roller assembly 30 and collect the sewage squeezed out from the surface of the cleaning roller assembly 30 back to the water tank 40.

[0071] By designing the handle as a cylindrical straight handle with a battery housing, compared to the near 90-degree bend between the handle and the battery housing in existing technologies, the hand joints and muscles are in a more comfortable position when holding the machine. When the cleaning head end is heavier, causing the car washer's center of gravity to shift, the straight handle design can distribute the weight more evenly, reducing the feeling of imbalance and the effort required for use. At the same time, the straight handle structure is more stable, making it easier to control the direction and force of the car washer's movement, reducing the extra force consumption caused by unstable control. By extending the bottom shell of the outer casing to form a cylindrical handle, the water pump assembly installed inside the outer casing is electrically connected to the battery assembly installed inside the handle. The battery assembly and water pump assembly are integrated and installed at the corner where the handle and the bottom shell pass through, simplifying the circuit design and connection method. This structure reduces deformation under external impact, avoids the problem of the outer casing assembly being prone to breakage or loosening at the handle corner, improves the structural stability of the product, improves the reliability of electrical connections, and avoids the problem of electrical connection failure. In addition, when the user holds the cleaning device handle, they can directly hold the outer surface of the handle. As the user grips the handle, the handle and the outer shell of the battery assembly slide and engage. Under the positive pressure of the user's grip, the relative sliding friction between the two increases, so that even when the cleaning device handle is subjected to a large external impact, the battery assembly can still maintain a reliable electrical connection with the water pump assembly inside the cleaning device.

[0072] In one or more alternative embodiments, such as Figure 1 , Figure 3 , Figure 4 , Figures 8 to 10 As shown, the waterproof part 501 of the battery assembly 50 is provided with a snap-fit ​​member 5011, and the side wall of the battery assembly 50 is provided with a connecting groove 503. The connecting groove 503 extends from the docking part 502 of the battery assembly 50 towards the waterproof part 501. The battery assembly 50 is positioned and inserted into the receiving cavity of the handle 21B through the connecting groove 503, and is fixed at the opening of the handle 21B with the snap-fit ​​member 5011.

[0073] Specifically, the battery assembly 50 is accurately positioned and extends into the receiving cavity of the handle 21B via the connecting groove 503. The snap-fit ​​member 5011 on the waterproof part 501 secures the battery assembly 50 at the opening of the handle 21B. The snap-fit ​​member 5011, working in conjunction with the connecting groove 503, prevents the battery assembly 50 from moving during operation or shifting due to vibration. Simultaneously, the connecting groove 503 extends along the docking portion 502 of the battery assembly 50 towards the waterproof part 501. The extension of the connecting groove 503... A waterproof rubber ring 5012 is fitted between the point and the end face of the waterproof part 501 near the connecting groove 503. After the battery assembly 5 is connected to the handle 21B, the waterproof rubber ring 5012 effectively seals the opening of the handle 21B, preventing moisture or dampness from entering the receiving cavity of the handle 21B and further entering the battery assembly 50 or affecting the electrical connection between the output end of the battery assembly 50 and the power connection end 10A of the water pump assembly 10. This keeps the battery assembly 50 dry and prevents battery performance degradation or failure due to moisture intrusion.

[0074] In one or more alternative embodiments, such as Figures 1 to 4 , Figure 8 As shown, the outer shell assembly 20 includes a bottom shell 21 and an upper shell 22 that covers the bottom shell 21. The upper part of the bottom shell 21 is open, and the transition between the upper part of the bottom shell 21 and the handle 21B is bent at an angle. The side wall of the bottom shell 21 is provided with several positioning parts so that the bottom shell 21 and the upper shell 22 can be detachably connected.

[0075] Specifically, the bottom shell 21 includes a cleaning head bottom shell 21A and a handle 21B. The transition between the cleaning head bottom shell 21A and the handle 21B is angled. The upper part of the cleaning head bottom shell 21A is open to facilitate the assembly of the water pump assembly 10. The lower part of the cleaning head bottom shell 21A and the handle 21B have a smooth curved outer contour. Combined with the straight handle 21B, the handle 21B and the cleaning head bottom shell 21A are connected in a curved shape. When the user holds the straight handle 21B, the outer shell assembly 20 serves as the connecting part between the handle 21B and the front cleaning roller assembly 30. The curved design allows the device to adapt more naturally to the user's hand shape, reducing fatigue during long-term use and improving the user's grip comfort.

[0076] In one or more alternative embodiments, such as Figures 1 to 4As shown, after the upper shell 22 and the bottom shell 21 are closed, a cavity (not shown in the figure) is formed inside for installing the water pump assembly 10. The bottom of the cavity is provided with a wire groove for circuit wiring and a pipeline channel for water pipe flow (not shown in the figure). The pipeline channel includes an outlet pipe 10a and a return pipe 10b connecting the water pump assembly 10. The bottom of the cavity is provided with a wire groove for routing the wire harness cable 10c.

[0077] Specifically, after the upper shell 22 and the bottom shell 21 are closed, a cavity is formed to protect the water pump assembly 10. The bottom of the cavity is provided with a wire groove and a pipeline channel. The wire groove is used to fix the wire harness cable 10c that is electrically connected to the cleaning roller assembly 30 clamped in front of the water pump assembly 10 and the outer shell assembly 20. The pipeline channel includes an outlet pipe 10a and a return pipe 10b that connect the water pump assembly 10.

[0078] In one or more alternative embodiments, such as Figures 1 to 3 , Figure 6 As shown, a cleaning roller assembly 30 is clamped at the end of the outer casing assembly 20 away from the handle 21B. The cleaning roller assembly 30 includes a drive motor 30a and a cleaning roller 30b sleeved on the output shaft (not shown in the figure) of the drive motor 30a. The outlet pipe 10a and return pipe 10b of the water pump assembly 10 transport clean water from the water tank 40 to the surface of the cleaning roller 30b and recover wastewater from the surface of the cleaning roller 30b back to the water tank 40. When the drive motor 30a is working, its output shaft rotates and drives the cleaning roller 30b to rotate. The cleaning roller 30b elastically abuts against the car body to be cleaned. The cleaning roller 30b, which is continuously moistened by clean water, rotates and continuously scrubs the car body. The wastewater after scrubbing the car body is further collected by the water tank 40.

[0079] In one or more alternative embodiments, such as Figure 1 , Figure 4 As shown, the cleaning head bottom shell 21A of the bottom shell 21 extends forward with a U-shaped structure to clamp both ends of the cleaning roller assembly 30. The cleaning head bottom shell 21A includes a left cleaning head clamping plate 21A1, a right cleaning head clamping plate 21A2, and a cleaning head bottom shell body (not shown in the figure) connecting the two. Specifically, as shown... Figure 4 , Figure 5As shown, one end of the drive motor 30a is fixed to the left clamping plate 21A1 of the cleaning head, and the cleaning roller 30b is sleeved on the output shaft of the other end of the drive motor 30a. The other end of the cleaning roller 30b is provided with an elastic latch (not shown in the figure), which is engaged with the right clamping plate 21A2 of the cleaning head. When the drive motor 30a is working, its output shaft rotates and drives the cleaning roller 30b to rotate. When it is necessary to remove the cleaning roller 30b, press the elastic latch to separate the cleaning roller 30b from the right clamping plate 21A2 of the cleaning head, rotate the drive motor 30a at a certain angle, and then continue to remove the cleaning roller 30b sleeved on the output shaft laterally.

[0080] In one or more alternative embodiments, such as Figure 7 As shown, the water pump assembly 10 has a built-in control system 100. The control system 100 is electrically connected to the output terminal of the battery assembly 50 through the power terminal 10A of the water pump assembly 10. The battery assembly 50 supplies power to the water pump assembly 10, and the control system 100 controls the operation of the water pump assembly 10.

[0081] In one or more alternative embodiments, such as Figure 2 , Figure 3 , Figure 8 As shown, the upper shell 22 includes a cleaning head upper shell 22A and a body upper shell 22B. The body upper shell 22B further includes the body front shell (not shown in the attached diagram) and a water tank retaining shell 22B1 that is recessed and connected to the body front shell. The body upper shell 22B is Z-shaped. The entire upper shell 22 is divided into two parts, the cleaning head upper shell 22A and the body upper shell 22B, which are separable from the bottom shell 21. The cleaning head upper shell 22A and the body upper shell 22B are sequentially connected to form a single, integrated upper shell 22. The cleaning head upper shell 22A is fitted and snapped onto the cleaning head bottom shell 21A. The water tank retaining shell 22B1 is fitted and snapped onto the middle portion of the car wash machine bottom shell 21 near the cleaning head. The body front shell is fitted and snapped onto the middle portion of the car wash machine bottom shell 21 near the handle 21B.

[0082] In one or more alternative embodiments, such as Figure 2 , Figure 3 , Figure 8As shown, the middle portion of the bottom shell 21 after removing the cleaning head bottom shell 21A and handle 21B is provided with a buckle 211 and a slot 212. The buckle 211 extends upward from the upper surface of the middle portion of the bottom shell 21 to form a fastening hook that can be fastened to the inner walls of both sides of the lower surface of the water tank snap-fit ​​shell 22B1. The slot 212 is provided on the inner surface of both sides of the middle portion of the bottom shell 21 and cooperates with the hooks (not shown in the figure) extending downward from the lower surface of the water tank snap-fit ​​shell 22B1. The buckle 211 and slot 212 of the middle portion of the bottom shell 21 cooperate with the slots (not shown in the figure) and hooks on the lower surface of the water tank snap-fit ​​shell 22B1 to achieve a stable fastening between the middle portion of the bottom shell 21 and the water tank snap-fit ​​shell 22B1.

[0083] In one or more alternative embodiments, such as Figure 3 , Figure 4 , Figure 7 As shown, the upper casing 22B of the upper casing 22 is equipped with a control component (not shown in the figure) corresponding to the control system 100. The control component includes a power button 222, an indicator light group (not shown in the figure), and a button cap 2211. The power button 222 controls the start and stop of the straight handle car wash machine and the switching of the working mode through the control system 100, providing a user operation method, allowing users to easily control the start and stop of the equipment, facilitate operation and management of the equipment's working status, and improve user experience and operational convenience. The indicator light group displays the working status of the straight handle car wash machine through an indicator light source. The indicator light group includes a light guide plug 103 and several light guide pillars 1031 placed therein. The light guide plug 103 is made of a non-light-guiding material, and the light guide pillars 1031 are made of a light-guiding material. The light guide pillars 1031 can guide the light source on the control system 100 to the upper surface of the upper casing 22B. The indicator light group can display the working status of the equipment in real time, allowing users to clearly understand the operating status of the equipment and handle abnormal situations in a timely manner.

[0084] In one or more alternative embodiments, such as Figure 7As shown, a silicone button 106 is also provided on the housing of the water pump assembly 10. The silicone button 106 can achieve isolation and sealing with the housing of the water pump assembly 10. At the same time, one end of the silicone button 106 elastically abuts against the power on / off / mode selection button on the control system 100; the other end of the silicone button 106 elastically abuts against the power on / off button 222; pressing the power on / off button 222 can trigger the power on / off / mode selection function of the control system 100 through the silicone button 106; a sealing ring 108 is also snapped on the outer ring of the housing of the water pump assembly 10 to achieve complete isolation and sealing between the water pump assembly 10 and the receiving cavity of the handle 21B in the conductive channel; the power receiving end 10B of the water pump assembly 10 is provided with an electrode cap 101 and a spring 102 supporting the electrode cap 101 to elastically extend outward. Through the elastic electrical connection between the electrode cap 101 and the output end of the battery assembly 50, the water pump assembly 10 can continuously and stably obtain the power provided by the battery assembly 50.

[0085] In one or more alternative embodiments, such as Figure 3 , Figure 4 , Figure 7 , Figure 8 As shown, the upper shell 22B of the upper shell 22 includes the water tank snap-fit ​​shell 22B1. The upper surface of the water tank snap-fit ​​shell 22B1 is also provided with a U-shaped mounting groove for placing the water tank 40 (not shown in the figure). A locking mechanism 221 is provided next to the mounting groove. The water tank 40 can be detachably installed in the mounting groove. The locking mechanism 221 is integrated with the control component to control the detachment and fixation of the water tank 40 in the mounting groove.

[0086] In one or more alternative embodiments, such as Figure 7 As shown, the locking mechanism 221 enables quick fixation of the water tank 40 at the mounting slot. The locking mechanism 221 includes a button cap 2211, a guide post 2213, a locking rod 2214, and a spring 2213. The locking rod 2214 is constrained to the upper casing 22B and can only extend and retract laterally. The button cap 2211 is constrained to the upper casing 22B and can only move vertically. Pressing the button cap 2211 actuates the elastically extending guide post 2212, causing the locking rod 2214 to extend and retract laterally, thus completing the installation and removal of the water tank 40. The spring 2213 applies a lateral elastic force to the locking rod 2214, allowing the locking rod 2214 to move laterally elastically.

[0087] In one or more alternative embodiments, such as Figure 5As shown, the bottom shell 21 near the surface of the cleaning roller 30b is provided with a clean water pipe interface (not shown in the figure) for connecting to the clean water pipe 10a and a sewage recovery port (not shown in the figure) for connecting to the sewage pipe 10b. The clean water pipe interface is connected to the clean water pipe 10a, and the sewage recovery port is connected to the sewage pipe 10b. The clean water pipe 10a and the sewage pipe 10b are connected to the water tank 40. The clean water pipe 10a, the clean water pipe interface, the sewage recovery port, and the sewage pipe 10b constitute a sewage channel and a clean water circulation channel provided on the bottom shell 21.

[0088] Furthermore, such as Figure 5 , Figure 6 As shown, the bottom shell 21A of the cleaning head is provided with a squeezing tip P that elastically abuts against the surface of the cleaning roller 30b and points towards the axis of the cleaning roller 30b. The squeezing tip P penetrates the entire outer surface of the cleaning roller 30b along its axial extension direction. Figure 5 , Figure 6 As shown, a detachable scraper assembly 21D is detachably connected to the lower surface of the cleaning head bottom shell 21A near the surface of the cleaning roller 30b. The detachable scraper assembly 21D points towards the surface of the cleaning roller 30b and has a water-collecting tip Q that elastically supports the surface of the cleaning roller 30b. The water-collecting tip Q extends through the entire outer surface of the cleaning roller 30b along its axial direction. The squeezing tip P, the water-collecting tip Q, the lower surface of the cleaning head bottom shell 21A sandwiched between them, and the outer surface of the cleaning roller 30b sandwiched between them collectively enclose a water-guiding space M for the flow of clean water and wastewater. Figure 5 As shown, clean water is sprayed directly into the water guiding space M after being sprayed from the clean water pipe interface. Within the water guiding space M, the clean water is absorbed by the outer surface of the cleaning roller 30b. Simultaneously, as the cleaning roller 30b rotates, the squeezing tip P squeezes out the wastewater inside the cleaning roller 30b and guides it along the water collecting tip Q into the water guiding space M. Then, the wastewater is drawn away from the wastewater recovery port. Throughout the cleaning process of the cleaning roller 30b on the surface of the vehicle body, the water guiding space M continuously replaces the surface of the cleaning roller 30b with clean water and wastewater until the vehicle body surface is thoroughly cleaned.

[0089] In one or more alternative embodiments, such as Figure 5 As shown, a sewage viewing window 21C is also provided at the interface of the sewage channel near the water guiding space M. The upper surface of the sewage viewing window 21C is directly exposed and extends out of the outer surface of the cleaning head shell 22A. The sewage viewing window 21C is made of transparent material. Through the sewage viewing window 21C, the sewage flow in the sewage channel can be directly observed to determine the degree of sewage dirtiness, so that the user can make a prediction in advance whether to empty the sewage and add clean water or clean the filter device in the water tank 40 (not shown in the figure).

[0090] In one or more alternative embodiments, such as Figure 1 , Figure 6 , Figure 10 As shown, the bottom shell 21A of the cleaning head is also provided with an exhaust outlet 21A3 and an exhaust pipe 40a. The exhaust outlet 21A3 is connected to the water tank 40 through the exhaust pipe 40a to regulate the pressure inside the water tank 40. In a preferred embodiment, multiple exhaust outlets 21A3 are provided, and the multiple exhaust outlets 21A3 are spaced apart and simultaneously connected to the exhaust pipe 40a to regulate the pressure inside the water tank 40. As the cleaning roller 30b rotates, the exhaust outlet 21A3 can discharge the air inside the water tank 10 to the surface of the cleaning roller 30b after being squeezed by the squeezing tip P. In other words, the air discharged from the water tank 10 will not be discharged into the water guiding space M, which allows for a more stable replacement of clean water and wastewater in the water guiding space M and a better cleaning effect.

[0091] In one or more alternative embodiments, such as Figures 1 to 3 As shown, a display panel (not shown in the attached figure) is provided in the waterproof part 501. The display panel monitors the working status and battery health of the battery assembly 50, and also monitors the working status of the entire car wash machine in real time.

[0092] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A straight-handle car wash machine, characterized in that, include: The cleaning roller assembly rotates and uses its wet outer surface to elastically press and scrub the vehicle body surface to be cleaned; The outer shell assembly includes a bottom shell and an upper shell, the upper shell covers the bottom shell, the bottom shell extends forward into a U-shaped structure to hold both ends of the cleaning roller assembly, and the bottom shell extends to the end into a straight cylindrical handle, the handle has a receiving cavity inside, and one end of the handle has an opening; The battery assembly is detachably installed in the housing of the handle; The water pump assembly is installed inside the housing assembly and electrically connected to the battery assembly; When the user holds the cleaning device handle, they can directly grip the outer surface of the handle. As the user grips the handle, the handle and the battery assembly housing slide and engage, increasing the relative sliding friction between them under the positive pressure of the user's grip.

2. The straight-handle car wash machine as described in claim 1, characterized in that, The battery assembly includes a waterproof section and a docking section. The docking section is detachably installed in the receiving cavity of the handle through an opening. The docking section has an output end, and the waterproof section closes the opening. Preferably, the straight-handle car wash machine also includes: The water tank is detachably snapped onto the upper shell, and provides clean water and collects wastewater through the clean water channel and wastewater channel between the surface of the water tank and the cleaning roller assembly. Preferably, the water tank is detachably snapped onto the upper shell, and the water tank provides clean water to the surface of the cleaning roller assembly through a clean water channel between the water tank and the surface of the cleaning roller assembly, and collects the wastewater squeezed out from the surface of the cleaning roller assembly through a wastewater channel between the water tank and the surface of the cleaning roller assembly. Preferably, the water pump assembly includes an electrical connection terminal and an inlet / outlet water terminal, the electrical connection terminal being flexibly connected to the output terminal of the battery assembly; the battery assembly provides power to the water pump assembly, and the water pump assembly draws clean water from the water tank.

3. The straight-handle car wash machine as described in any one of claims 1-2, characterized in that, The cleaning roller assembly is installed on the cleaning head of the straight handle car wash machine; the water pump assembly is installed inside the housing assembly at the transition point where the U-shaped structure extends towards the straight cylindrical handle at an angle, and the electrical terminal is elastically connected to the output terminal; Preferably, the transition section effectively mitigates the impact of external shocks on the flexible electrical connection, and the battery assembly and water pump assembly are positioned close to the handle, making the center of gravity of the straight handle car washer more inclined towards the handle, making it easier to hold.

4. The straight-handle car wash machine as described in claim 2, characterized in that, The waterproof part is equipped with a snap-fit ​​component, and the side wall of the battery assembly is equipped with a connecting groove. The connecting groove extends from the docking port of the battery assembly toward the waterproof part. The battery assembly is positioned and inserted into the receiving cavity of the handle through the connecting groove, and is fixed at the opening of the handle with the snap-fit ​​component. Preferably, the upper part of the bottom shell is open, and the lower part of the bottom shell is bent at an angle at the connection with the handle; the side wall of the bottom shell is provided with several positioning parts so that the bottom shell and the upper shell can be detachably connected. Preferably, after the upper shell and the bottom shell are closed, a cavity for installing the water pump assembly is formed inside. The bottom of the cavity is provided with a wire groove for circuit wiring and a pipeline channel for water pipe flow. The pipeline channel includes a water pump suction pipe and a clean water outlet pipe that connect the water pump assembly. Preferably, the cleaning roller assembly includes a cleaning roller, and the water pump assembly delivers clean water from the water tank to the cleaning roller through a water pump suction pipe and a clean water outlet pipe.

5. The straight-handle car wash machine as described in claim 4, characterized in that, The water pump assembly has a built-in control board, which is electrically connected to the battery assembly through the power terminal of the water pump assembly. The control board controls the operation of the water pump assembly.

6. The straight-handle car wash machine as described in claim 5, characterized in that, The upper shell has a control component located on the control panel. The control component includes a power button and an indicator light group. The power button controls the start and stop of the water pump component and the switching of the working mode through the control panel. The indicator light group displays the working status of the straight handle car wash machine through indicator light sources and includes several light guide columns.

7. The straight-handle car wash machine as described in claim 6, characterized in that, The upper shell is also provided with a mounting slot for placing the water tank and a locking mechanism. The water tank can be detachably installed in the mounting slot, and the locking mechanism is used to lock / unlock the water tank in the mounting slot.

8. The straight-handle car wash machine as described in claim 7, characterized in that, The locking mechanism is integrated with the control components to control the removal and securing of the water tank in the mounting slot.

9. The straight-handle car wash machine as described in claim 4, characterized in that, A clean water pipe interface and a wastewater recovery port are provided on the bottom shell near the surface of the cleaning roller. The clean water pipe interface is connected to the clean water outlet pipe, and the wastewater recovery port is connected to the water tank through a pipe. The clean water pipe interface and the wastewater recovery port are connected to form a clean water channel and a wastewater channel. Preferably, the bottom shell is also provided with an exhaust outlet and an exhaust pipe. The exhaust outlet is connected to the water tank through the exhaust pipe to balance the pressure inside the water tank.

10. The straight-handle car wash machine as described in claim 1, characterized in that, The waterproof section is equipped with a display panel that monitors the working status and battery health of the straight handle car washer.

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