A hard surface cleaning machine

Abstract

The application provides a hard surface cleaning machine, which comprises a hard surface cleaning device and a handle. The hard surface cleaning device comprises a shell, a water squeezing structure arranged on the shell, a cleaning roller and a water tank assembly. The cleaning roller can rotate around its axis and cooperates with the water squeezing structure to squeeze sewage. The water tank assembly is used to provide clean water and collect sewage. The shell is provided with a receiving groove, and a buckling hole is arranged on the groove wall of the receiving groove. The handle comprises a fixing rod, which is arranged in the receiving groove and is provided with a buckling piece arranged in the buckling hole to fix the handle and the hard surface cleaning device. After the fixing rod is inserted into the receiving groove and the position is aligned, the fixing rod of the handle is fixed in the receiving groove of the hard surface cleaning device through the close cooperation of the buckling piece and the buckling hole, so that the stable connection between the handle and the hard surface cleaning device is finally realized. The hard surface cleaning device and the handle are simple to assemble, which is convenient for users to operate.

Description

Technical Field

[0001] This application belongs to the field of cleaning technology, specifically relating to a hard surface cleaning machine. Background Technology

[0002] Hard surface cleaning devices, as one of the commonly used tools in modern life, have entered thousands of households. With the development of hard surface cleaning devices, different types and structures of hard surface cleaning devices have emerged.

[0003] Hard surface cleaning devices can usually be fitted with handles to extend their cleaning range. However, in related technologies, the connection between the hard surface cleaning device and the handle is complex, making the assembly or disassembly of the hard surface cleaning device and the handle cumbersome and not conducive to easy operation by users. Utility Model Content

[0004] The purpose of this application is to provide a hard surface cleaning machine to solve the technical problem in the related art where the cooperation structure between the hard surface cleaning device and the handle is complicated, making the assembly or disassembly of the hard surface cleaning device and the handle more troublesome and not conducive to easy operation by users.

[0005] In a first aspect, this application provides a hard surface cleaning machine, comprising: A hard surface cleaning device includes a housing, a water-squeezing structure mounted on the housing, a cleaning roller, and a water tank assembly. The cleaning roller is rotatable around its axis. The water-squeezing structure, the housing, and the cleaning roller form a water tank. The water-squeezing structure or the housing has a clean water outlet and a wastewater outlet communicating with the water tank. Clean water in the water tank assembly can be transferred to the cleaning roller through the clean water outlet. When the cleaning roller rotates against the surface to be cleaned, the clean water can turn into wastewater. The cleaning roller cooperates with the water-squeezing structure to squeeze out the wastewater from the cleaning roller, so that the wastewater is placed in the water tank. At the same time, the clean water can also rinse the cleaning roller and the wastewater. The wastewater is discharged into the water tank assembly through the wastewater outlet. The housing has a receiving groove, and the groove wall has a fastening hole. The handle includes a fixing rod disposed in the receiving groove, and the fixing rod is provided with a fastening element disposed in the fastening hole to fix the handle and the hard surface cleaning device.

[0006] The hard surface cleaning machine provided in this application includes a hard surface cleaning device and a handle. The hard surface cleaning device includes a housing with a receiving groove and a fastening hole on the groove wall. The handle includes a fixing rod disposed within the receiving groove, and a fastening element is provided on the fixing rod within the fastening hole to secure the handle and the hard surface cleaning device. After the fixing rod is inserted into the receiving groove for initial alignment, the fastening element and the fastening hole tightly engage to firmly fix the fixing rod of the handle into the receiving groove of the hard surface cleaning device, ultimately achieving a stable connection between the handle and the hard surface cleaning device. The assembly of the hard surface cleaning device and the handle is simple, facilitating easy operation by the user.

[0007] The fixing rod includes a fixing part with a mounting through hole. The fastening member is disposed in the mounting through hole and connected to the fixing part. The fastening member includes a fastening protrusion and can move in a direction close to the axis of the fixing part so that the fastening protrusion of the fastening member can enter the fastening hole, thereby fastening and fixing the fixing rod in the receiving groove.

[0008] The fixing rod further includes an annular limiting part, which is arranged around the outer periphery of the fixing part and is used to abut against the housing.

[0009] The fastening component further includes a fastening button, which is located on the side of the annular limiting portion away from the fastening protrusion. The fastening button can move in a direction close to the axis of the fixing portion so that the fastening protrusion of the fastening component moves out of the fastening hole.

[0010] The receiving groove has a first mating part on its wall and a second mating part on its outer periphery. One of the first mating part and the second mating part is a protrusion and the other is a groove.

[0011] The handle further includes a connecting rod and an extension rod, the connecting rod being rotatably connected to the fixed rod, and the extension rod being connected to the connecting rod.

[0012] The fixed rod includes a rotating part that is rotatably connected to the connecting rod. The rotating part includes a first annular gear groove, and the connecting rod includes a second annular gear groove. The first annular gear groove and the second annular gear groove are correspondingly arranged. The handle also includes a locking gear, with a portion of the locking gear located in the first annular gear groove and another portion located in the second annular gear groove, to restrict the rotation of the rotating part relative to the connecting rod.

[0013] The handle also includes a rotary button that abuts against the locking gear. The rotary button can push the locking gear to move into the second annular gear groove, so that the rotating part can rotate relative to the connecting rod.

[0014] The rotating part further includes a baffle that abuts against the locking gear. The rotary button passes through the baffle and abuts against the locking gear at least partially. The handle further includes an elastic element, one end of which abuts against the locking gear and the other end of which abuts against the connecting rod. The elastic element is used to reset the locking gear.

[0015] The hard surface cleaning device also includes a water tank assembly, which includes a clean water tank and a wastewater tank. The clean water in the clean water tank can be transported to the cleaning roller through a clean water pipe, and the wastewater from the cleaning roller can be transported to the wastewater tank through the squeezing structure and the wastewater pipe. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a schematic diagram of the assembly structure of a hard surface cleaning device and a handle provided in an embodiment of this application; Figure 2 This is a schematic diagram of the disassembly structure of a hard surface cleaning device and handle provided in an embodiment of this application; Figure 3 This is a schematic diagram of the disassembly structure of a fixing rod and a receiving groove provided in an embodiment of this application; Figure 4 This is an exploded view of the rotating connection portion of a fixed rod and a connecting rod provided in an embodiment of this application. Figure 1 ; Figure 5 This is an exploded view of the rotating connection portion of a fixed rod and a connecting rod provided in an embodiment of this application. Figure 2 ; Figure 6 This is a schematic diagram of a hard surface cleaning device provided in an embodiment of this application.

[0017] Label Explanation: Hard surface cleaning machine 100, hard surface cleaning device 10, housing 11, receiving groove 111, fastening hole 112, first mating part 113, cleaning roller 12, water tank assembly 13, handle 20, fixing rod 21, fastening part 211, fastening protrusion 2111, fastening button 2112, fixing part 212, annular limiting part 213, rotating part 214, first annular gear groove 2141, baffle 2142, connecting rod 22, second annular gear groove 221, extension rod 23, locking gear 30, rotary button 40, elastic element 50, first direction D1. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0019] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0020] In this specification, for convenience, terms such as "middle," "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer" are used to indicate orientation or positional relationships in conjunction with the accompanying drawings. This is solely for the purpose of facilitating the description and simplification, and does not imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this disclosure. The positional relationships of the constituent elements may be appropriately varied depending on the orientation of the constituent elements being described. Therefore, the use of terms not limited to those described in the specification may be appropriately replaced as needed.

[0021] In this specification, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they may refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection via an intermediate component, or a connection within two components. Those skilled in the art will understand the meaning of these terms in this disclosure as appropriate.

[0022] Hard surface cleaning devices, as one of the commonly used tools in modern life, have entered thousands of households. With the development of hard surface cleaning devices, different types and structures of hard surface cleaning devices have emerged.

[0023] Hard surface cleaning devices can usually be fitted with handles to extend their cleaning range. However, in related technologies, the connection between the hard surface cleaning device and the handle is complex, making the assembly or disassembly of the hard surface cleaning device and the handle cumbersome and not conducive to easy operation by users.

[0024] This application provides a hard surface cleaning machine 100 to solve the technical problem in the related art where the cooperation structure between the hard surface cleaning device and the handle is complicated, making the assembly or disassembly of the hard surface cleaning device and the handle more troublesome and not conducive to easy operation by users.

[0025] Please refer to Figures 1 to 3 , Figure 1 This is a schematic diagram of the assembly structure of a hard surface cleaning device and a handle provided in an embodiment of this application. Figure 2 This is a schematic diagram illustrating the disassembly structure of a hard surface cleaning device and its handle provided in an embodiment of this application. Figure 3 This is a schematic diagram of the disassembly structure of a fixing rod and a receiving groove provided in an embodiment of this application.

[0026] The hard surface cleaning machine 100 includes a hard surface cleaning device 10 and a handle 20. The hard surface cleaning device 10 includes a housing 11, a water squeezing structure installed on the housing 11, a cleaning roller 12, and a water tank assembly 13. The cleaning roller 12 can rotate around its axis. The water squeezing structure, the housing 11, and the cleaning roller 12 form a water tank. The water squeezing structure or the housing 11 is provided with a clean water outlet and a wastewater outlet communicating with the water tank. Clean water in the water tank assembly 13 can be transmitted to the cleaning roller 12 through the clean water outlet. When the cleaning roller 12 rotates against the surface to be cleaned, the clean water can become wastewater. The cleaning roller 12 cooperates with the water squeezing structure to squeeze out the wastewater in the cleaning roller 12, so that the wastewater is placed in the water tank. At the same time, the clean water can also rinse the cleaning roller 12 and the wastewater. The wastewater is discharged into the water tank assembly 13 through the wastewater outlet. The housing 11 is provided with a receiving groove 111, and the groove wall of the receiving groove 111 is provided with a fastening hole 112. The handle 20 includes a fixing rod 21, which is disposed in the receiving groove 111, and the fixing rod 21 is provided with a fastening member 211, which is disposed in the fastening hole 112 to fix the handle 20 and the hard surface cleaning device 10.

[0027] It should be noted that the hard surface cleaning device 10 described in this application can be used to clean hard surfaces, wherein the hard surfaces include, but are not limited to, surfaces such as glass and tabletops that are perpendicular to, parallel to, or at an angle to the ground, and this application does not limit them.

[0028] The hard surface cleaning machine 100 includes the hard surface cleaning device 10 and the handle 20. The hard surface cleaning device 10 is the part directly used for cleaning operations (such as possibly including functional components such as cleaning roller 12 and scraper). The handle 20 is the part for the user to hold and operate, so as to facilitate the movement and use of the hard surface cleaning machine 100.

[0029] The hard surface cleaning device 10 of this application includes a housing 11 and a cleaning roller 12. The housing 11 encloses a receiving cavity for receiving the cleaning roller 12. The receiving cavity can also be used to receive other structural components of the hard surface cleaning device 10, such as a motor, a transmission mechanism, a water tank assembly 13, etc. This application does not limit this.

[0030] The cleaning roller 12 is disposed within the receiving cavity and is rotatably connected to the housing 11, ensuring that the cleaning roller 12 can rotate freely. The cleaning roller 12 can rotate and clean the surface to be cleaned. Specifically, the cleaning roller 12 can remove, absorb, and scrape away stains on the surface by rotating itself and utilizing its surface material (such as a velvet cloth, rubber scraper, absorbent sponge, etc.). It should be noted that the cleaning roller 12 can be actively driven by a motor or passively rotated by friction with the ground. This application uses the example of the cleaning roller 12 being actively driven by a motor, and should not be construed as a limitation of this application. The cleaning roller 12's ability to rotate and clean the surface allows it to automatically adapt to the unevenness of the surface (such as gaps or slight undulations), maintaining close contact and improving cleaning coverage. Furthermore, the rolling friction of the cleaning roller 12 replaces sliding friction, significantly reducing the moving resistance of the hard surface cleaning device 10; for example, it requires less effort when pushed by hand, or consumes less energy when moving autonomously.

[0031] Furthermore, the housing 11 is also provided with a receiving groove 111, which is a recessed structure and is provided corresponding to the handle 20. The receiving groove 111 can be used to receive part of the structure of the handle 20. Specifically, the handle 20 includes a fixing rod 21, and the receiving groove 111 is used to receive the fixing rod 21.

[0032] Furthermore, the receiving groove 111 has a fastening hole 112 on its groove wall. The fastening hole 112 is used to cooperate with the fastening member 211 on the fixing rod 21 of the handle 20 to fix the fixing rod 21 in the receiving groove 111, thereby fixing the handle 20 and the housing 11. Specifically, when the fastening member 211 is located in the fastening hole 112, the inner wall of the fastening hole 112 abuts against the fastening member 211 and restricts the fastening member 211 from moving along the first direction D1 and its opposite direction. The receiving groove 111 also restricts the movement of the fixing rod 21, thereby fixing the fixing rod 21 in the receiving groove 111.

[0033] It should be noted that in this embodiment, the fastening member 211 may include a fastening protrusion 2111. In other embodiments, the fastening member 211 may also include a snap fastener or other structures. This application does not limit this.

[0034] Furthermore, when the handle 20 and the hard surface cleaning device 10 are assembled, the fixing rod 21 extends into the receiving groove 111 of the housing 11, that is, the fixing rod 21 is inserted into the receiving groove 111 to achieve initial positional alignment. Simultaneously, the fixing rod 21 is provided with a fastening member 211, which engages with the fastening hole 112 on the wall of the receiving groove 111. Through the tight cooperation between the fastening member 211 and the fastening hole 112, the fixing rod 21 of the handle 20 is firmly fixed in the receiving groove 111 of the hard surface cleaning device 10, ultimately achieving a stable connection between the handle 20 and the hard surface cleaning device 10, ensuring that the two will not detach when the user holds the handle 20 for operation.

[0035] The hard surface cleaning machine 100 provided in this application includes a hard surface cleaning device 10 and a handle 20. The hard surface cleaning device 10 includes a housing 11, which has a receiving groove 111. The groove wall of the receiving groove 111 has a fastening hole 112. The handle 20 includes a fixing rod 21, which is disposed in the receiving groove 111. The fixing rod 21 has a fastening member 211, which is disposed in the fastening hole 112 to fix the handle 20 and the hard surface cleaning device 10. The fixing rod 21 only needs to be inserted into the receiving groove 111 to achieve initial position alignment. Then, through the tight cooperation between the fastening member 211 and the fastening hole 112, the fixing rod 21 of the handle 20 can be firmly fixed in the receiving groove 111 of the hard surface cleaning device 10, thus achieving a stable connection between the handle 20 and the hard surface cleaning device 10. The hard surface cleaning device 10 and the handle 20 are easy to assemble and facilitate easy operation by the user.

[0036] Please refer to Figures 1 to 3 In one embodiment, the fixing rod 21 includes a fixing part 212, the fixing part 212 is provided with a mounting through hole, the fastening member 211 is disposed in the mounting through hole and connected to the fixing part 212, the fastening member 211 includes a fastening protrusion 2111, the fastening member 211 is movable in a direction close to the axis of the fixing part 212, so that the fastening protrusion 2111 of the fastening member 211 can enter into the fastening hole 112, thereby fastening and fixing the fixing rod 21 in the receiving groove 111.

[0037] The fixing part 212 is provided with the mounting through hole, which penetrates the fixing part 212. The mounting through hole can be used to accommodate the fastener 211 and provide a track or space for the movement of the fastener 211.

[0038] The fastening member 211 is integrally disposed within the mounting through hole of the fixing part 212 and connected to the fixing part 212. The fastening member 211 is provided with a fastening protrusion 2111, the shape of which corresponds to the shape of the fastening hole 112 of the receiving groove 111, that is, the fastening protrusion 2111 can be disposed within the fastening hole 112 to fasten and fix the fixing rod 21 within the receiving groove 111.

[0039] It should be noted that a key feature of the fastening element 211 is its ability to move in a direction close to the axis of the fixing part 212 (i.e., it can retract inward or move closer to the center of the fixing rod 21). This feature enables the fastening process as follows: when the handle 20 needs to be installed onto the hard surface cleaning device 10, the fixing rod 21 is inserted into the receiving groove 111 of the hard surface cleaning device 10; at this time, the fastening element 211 can move inward (closer to the axis of the fixing part 212). It should be noted that the movement of the fastening element 211 can be achieved by the user pressing the outer side of the fastening element 211, or by the inner wall of the receiving groove 111 during insertion. The clamping action is achieved by pressing. When the fixing rod 21 is inserted into the appropriate position, the fastening protrusion 2111 on the fastening member 211 will be aligned with the fastening hole 112 on the wall of the receiving groove 111. At this time, the fastening member 211 is no longer compressed (or the user releases the pressure), and at least a part of the fastening member 211 will pop outward through its own elasticity, so that the fastening protrusion 2111 enters and is locked in the fastening hole 112. Finally, through the tight engagement of the fastening protrusion 2111 and the fastening hole 112, the fixing rod 21 is firmly fixed in the receiving groove 111, realizing a stable connection between the handle 20 and the hard surface cleaning device 10.

[0040] The engagement between the latching protrusion 2111 and the latching hole 112 provides a reliable fixing force, which can prevent the handle 20 and the hard surface cleaning device 10 from accidentally falling off during use.

[0041] In the hard surface cleaning machine 100 of this application, the assembly of the handle 20 and the hard surface cleaning device 10 can be achieved through the mobility of the fastening member 211, and the assembly can be completed without complicated operations. Furthermore, if it is necessary to separate the handle 20 from the hard surface cleaning device 10, the user only needs to press the fastening member 211 to move it inward (allowing the fastening protrusion 2111 to disengage from the fastening hole 112), and the fixing rod 21 can be pulled out, making the disassembly of the hard surface cleaning device 10 and the handle 20 convenient and simple.

[0042] Please refer to Figures 1 to 3 Furthermore, the fixing rod 21 also includes an annular limiting part 213, which is arranged around the outer periphery of the fixing part 212 and is used to abut against the housing 11.

[0043] Specifically, when the fixing rod 21 is inserted into the receiving groove 111 of the hard surface cleaning device 10, as the insertion depth increases, the annular limiting part 213 will eventually abut against the housing 11 of the hard surface cleaning device 10 (the opening edge or corresponding position of the receiving groove 111), preventing the fixing rod 21 from going further in. In other words, the annular limiting part 213 acts as a stop, ensuring that the fixing rod 21 is not inserted too far into the receiving groove 111, but stops precisely at the position where the fastening protrusion 2111 can be accurately aligned with the fastening hole 112, thus achieving the positioning function during installation and ensuring the accuracy of assembly.

[0044] Furthermore, the receiving groove 111 has a first mating part 113 on its groove wall, and the fixing rod 21 has a second mating part on its outer periphery. One of the first mating part 113 and the second mating part is a protrusion, and the other is a groove. In other words, if the first mating part 113 is an outwardly protruding structure (protrusion), then the second mating part is an inwardly recessed structure (groove); if the first mating part 113 is an inwardly recessed structure (groove), then the second mating part is an outwardly protruding structure (protrusion). This corresponding protrusion-recession design ensures precise engagement. The first mating part 113 and the second mating part are foolproof structures, which can cooperate with the previous fastening structure (the fastening protrusion 2111 and the fastening hole 112) to form double protection. For example, when the fixing rod 21 is inserted into the receiving groove 111, the protrusion will slide along the trajectory of the groove, guiding the fixing rod 21 accurately into the preset position like a guide rail, avoiding offset or skew during installation, ensuring that the fastening protrusion 2111 can be accurately aligned with the fastening hole 112, making the assembly smoother.

[0045] Furthermore, after the first mating part 113 and the second mating part are engaged, the fixing rod 21 can be prevented from rotating circumferentially within the receiving groove 111 (for example, when the user holds the handle 20 and rotates it, the fixing rod 21 will not rotate relative to the housing 11), while reducing radial sway (loosening left and right or up and down), making the overall connection more secure and avoiding wear or failure of the fastening structure due to swaying during use.

[0046] Furthermore, when the hard surface cleaning machine 100 is working, the handle 20 will be subjected to the user's gripping force, the reaction force during cleaning, etc. The first mating part 113 and the second mating part can share some of the force, avoiding all stress concentration on the fastening protrusion 2111 and the fastening hole 112, thus extending the service life of the core fastening structure.

[0047] The first mating part 113 and the second mating part have simple structures, requiring no complex parts, and can be achieved solely through the external design of the housing 11 and the fixing rod 21. The first mating part 113 and the second mating part, together with the annular limiting part 213 (controlling the insertion depth), the snap-fit ​​protrusion 2111, and the snap-fit ​​hole 112 (achieving locking), complement each other, ensuring the accuracy and stability of the connection between the fixing rod 21 and the receiving groove 111 from three dimensions: depth, circumferential / radial position, and final locking.

[0048] For example, in this embodiment, the protrusion is a strip-shaped protrusion and the groove is a strip-shaped groove. In other words, the receiving groove 111 has an axial strip-shaped protrusion (first mating part 113) on its wall, and the fixing rod 21 has a corresponding strip-shaped groove (second mating part) on its outer periphery. When inserted, the protrusion slides into the groove, which can guide the movement of the fixing rod 21 and prevent the fixing rod 21 from rotating, making the connection between the fixing rod 21 and the receiving groove 111 more precise and stable.

[0049] Please refer to Figures 1 to 3 In one embodiment, the fastening member 211 further includes a fastening button 2112, which is located on the side of the annular limiting portion 213 opposite to the fastening protrusion 2111. The fastening button 2112 can move in a direction close to the axis of the fixing portion 212 so that the fastening protrusion 2111 of the fastening member 211 moves out of the fastening hole 112.

[0050] The buckle button 2112 is located on the side of the annular limiting part 213 opposite to the buckle protrusion 2111. Specifically, the buckle button 2112 is close to the direction in which the user holds the handle 20, making it convenient for the user to operate with their fingers.

[0051] More specifically, the latching button 2112 can move (i.e., press inward) along the axis close to the fixing part 212, and this movement will cause the latching member 211 to move in tandem. When the user presses the latching button 2112, the latching member 211 retracts inward, and the latching protrusion 2111, which was originally stuck in the latching hole 112, will move out of the latching hole 112, releasing the latching state between the fixing rod 21 and the receiving groove 111. At this time, the user can easily pull the fixing rod 21 out of the receiving groove 111, realizing the separation or disassembly of the handle 20 and the hard surface cleaning device 10.

[0052] The fastening component 211 is equipped with the fastening button 2112, which can release the handle 20 and the hard surface cleaning device 10 by simply pressing, without the need for tools, thus improving the convenience of user operation.

[0053] Please refer to Figures 1 to 3 In one embodiment, the handle 20 further includes a connecting rod 22 and an extension rod 23, wherein the connecting rod 22 is rotatably connected to the fixed rod 21, and the extension rod 23 is connected to the connecting rod 22.

[0054] The connecting rod 22 and the fixing rod 21 are rotatably connected. This rotatable design allows the user to adjust the angle between the handle 20 (the connecting rod 22 and the extension rod 23) and the hard surface cleaning device 10 according to the cleaning scenario. For example, when cleaning the floor, the handle 20 can be adjusted to be parallel to the ground for easy bending; when cleaning walls, glass, or high crevices, the handle 20 can be adjusted to be perpendicular or tilted to the hard surface cleaning device 10, allowing the user to reach it without tiptoeing or bending over. This improves the operational flexibility of the hard surface cleaning machine 100, adapting to cleaning needs at different heights and angles.

[0055] Please refer to Figures 1 to 5 , Figure 4 This is an exploded view of the rotating connection portion of a fixed rod and a connecting rod provided in an embodiment of this application. Figure 1 , Figure 5 This is an exploded view of the rotating connection portion of a fixed rod and a connecting rod provided in an embodiment of this application. Figure 2 .

[0056] In one embodiment, the fixed rod 21 includes a rotating part 214, which is rotatably connected to the connecting rod 22. The rotating part 214 includes a first annular gear groove 2141, and the connecting rod 22 includes a second annular gear groove 221. The first annular gear groove 2141 and the second annular gear groove 221 are correspondingly arranged. The handle 20 also includes a locking gear 30, a portion of which is disposed in the first annular gear groove 2141 and another portion in the second annular gear groove 221, to restrict the rotation of the rotating part 214 relative to the connecting rod 22.

[0057] The first annular gear groove 2141 is located on the rotating part 214. The first annular gear groove 2141 is an annular groove with gear teeth. The second annular gear groove 221 is located on the connecting rod 22 and corresponds completely to the position, shape and tooth pattern of the first annular gear groove 2141 (also an annular toothed structure).

[0058] The first annular gear groove 2141 and the second annular gear groove 221 are correspondingly arranged. When the rotating part 214 is assembled with the connecting rod 22, the first annular gear groove 2141 and the second annular gear groove 221 will form a continuous annular track that can accommodate the locking gear 30. Its teeth can precisely mesh with the teeth of the locking gear 30 (similar to the meshing between gears).

[0059] Specifically, the locking gear 30, the first annular gear groove 2141, and the second annular gear groove 221 cooperate to lock or unlock the angle of the rotating part 214 and the connecting rod 22. When the angle of the rotating part 214 and the connecting rod 22 needs to be adjusted: the locking gear 30 disengages from the first annular gear groove 2141 and the second annular gear groove 221. At this time, there is no meshing restriction between the first annular gear groove 2141 and the second annular gear groove 221, and the rotating part 214 (the fixed rod 21) and the connecting rod 22 can rotate freely relative to each other. The user can adjust the angle between the handle 20 and the hard surface cleaning device 10 according to the cleaning needs. When the angle of the rotating part 214 and the connecting rod 22 is fixed: after adjusting to a suitable angle, a part of the locking gear 30 is embedded in the first annular gear groove 2141, and another part is embedded in the second annular gear groove 221, with its teeth tightly meshing with the teeth of the two gear grooves. Because the meshing between gears has the characteristic of preventing relative rotation, the relative rotation between the rotating part 214 and the connecting rod 22 is strictly limited, and the angle of the handle 20 is firmly fixed.

[0060] The connecting rod 22 is rotatably connected to the fixed rod 21, and the connecting rod 22 and the fixed rod 21 are locked or unlocked through the cooperation of the locking gear 30, the first annular gear groove 2141 and the second annular gear groove 221. The user can flexibly switch between two states: free angle adjustment and fixed angle operation. The user can unlock the rod when angle adjustment is needed and lock it when working, which not only retains the flexibility of multi-angle adaptation but also ensures the structural stability during operation.

[0061] Please refer to Figures 1 to 5 In one embodiment, the handle 20 further includes a rotary button 40, which abuts against the locking gear 30. The rotary button 40 can push the locking gear 30 to move into the second annular gear groove 221, so that the rotating part 214 can rotate relative to the connecting rod 22.

[0062] The key function of the rotary button 40 is to change the position of the locking gear 30 through user operation, thereby releasing the rotation restriction between the rotating part 214 and the connecting rod 22. The specific process is as follows: In the initial state (locked), part of the locking gear 30 is in the first annular gear groove 2141 (on the rotating part 214), and the other part is in the second annular gear groove 221 (on the connecting rod 22). The relative rotation between the two is restricted by gear meshing, and the angle of the handle 20 is fixed.

[0063] Operating the rotary button 40 (unlocking): When the user presses the rotary button 40, the rotary button 40 pushes the locking gear 30 to move through an abutment relationship, ultimately causing the locking gear 30 to move into the second annular gear groove 221. At this time, the locking gear 30 only contacts the second annular gear groove 221 of the connecting rod 22 and is no longer engaged with the first annular gear groove 2141 of the rotating part 214, thus releasing the rotational restriction between them. Therefore, the rotating part 214 can rotate relative to the connecting rod 22, and the user can freely adjust the angle between the handle 20 and the hard surface cleaning device 10.

[0064] Furthermore, in one embodiment, the rotating part 214 further includes a baffle 2142, which abuts against the locking gear 30. The rotary button 40 passes through the baffle 2142 at least partially and abuts against the locking gear 30. The handle 20 further includes an elastic element 50, one end of which abuts against the locking gear 30 and the other end of which abuts against the connecting rod 22. The elastic element 50 is used to reset the locking gear 30.

[0065] The baffle 2142 can be used to guide and restrict the movement of the locking gear 30. Specifically, the baffle 2142 is in direct contact with one side of the locking gear 30, forming a blocking surface. The rotary button 40 at least partially passes through the baffle 2142 and abuts against the locking gear 30. In other words, the baffle 2142 has a through hole, which provides a moving track for the rotary button 40, ensuring that at least part of the rotary button 40 can only push the locking gear 30 in a preset direction, avoiding the displacement of the thrust caused by the tilting of the rotary button 40.

[0066] Furthermore, when the locking gear 30 is reset under the action of the elastic member 50, the baffle 2142 will abut against the locking gear 30 to prevent the locking gear 30 from moving excessively (e.g., not completely disengaging from the gear groove), ensuring that the locking gear 30 can accurately return to the locking position where it is simultaneously embedded in the first annular gear groove 2141 and the second annular gear groove 221.

[0067] One end of the elastic element 50 abuts against the locking gear 30, and the other end abuts against the connecting rod 22. The elastic element 50 is compressed between the locking gear 30 and the connecting rod 22 and is in a pre-tightened state (or a compressible state).

[0068] It should be noted that when the user presses the rotary button 40 to push the locking gear 30 (unlocking process), the locking gear 30 will move towards the connecting rod 22, while compressing the elastic element 50 (the elastic element 50 stores elastic potential energy); when the user releases the rotary button 40 (no longer applying force), the elastic element 50 will release its potential energy, generating an outward thrust, pushing the locking gear 30 to move in the opposite direction; under the limiting action of the baffle 2142, the locking gear 30 will eventually return to its initial position, partially in the first annular gear groove 2141 and partially in the second annular gear groove 221, and re-limit the relative rotation of the rotating part 214 and the connecting rod 22 through gear meshing, thus achieving automatic locking.

[0069] The complete process of adjusting the handle 20 degrees, taking all components into account, is as follows: Initial locking state: The elastic element 50 is in a natural or slightly compressed state, pushing the locking gear 30 to simultaneously engage with the first annular gear groove 2141 and the second annular gear groove 221, preventing them from rotating relative to each other; the baffle 2142 abuts against the locking gear 30, restricting its position.

[0070] Unlocking operation: The user presses the rotary button 40, which passes through the baffle 2142 and pushes the locking gear 30 to move toward the connecting rod 22, compressing the elastic element 50; the locking gear 30 gradually disengages from the first annular gear groove 2141 and finally fully enters the second annular gear groove 221, at which point the rotation restriction between the rotating part 214 and the connecting rod 22 is released.

[0071] Angle adjustment: The user can freely rotate the handle 20 to adjust to the desired angle.

[0072] Automatic locking: When the user releases the rotary button 40, the elastic element 50 resets, pushing the locking gear 30 to move in the opposite direction. Under the limit of the baffle 2142, it is precisely embedded in the first annular gear groove 2141 and the second annular gear groove 221, re-engages and locks, and the angle is fixed.

[0073] The elastic element 50 automatically locks when the rotary button 40 is released, eliminating the need for manual reverse operation by the user and simplifying the process of locking the handle 20 and the hard surface cleaning device 10.

[0074] Please refer to Figures 1 to 6 , Figure 6 This is a schematic diagram of a hard surface cleaning device provided in an embodiment of this application.

[0075] In one embodiment, the hard surface cleaning device 10 further includes a water tank assembly 13, which includes a clean water tank and a wastewater tank. The clean water in the clean water tank can be transported to the cleaning roller 12 through a clean water pipe, and the wastewater in the cleaning roller 12 can be transported to the wastewater tank through a squeezing structure and a wastewater pipe.

[0076] The water tank assembly 13 includes a clean water tank and a wastewater tank. The clean water tank is specifically used to store clean water (such as clean water or water with added detergent) for cleaning, while the wastewater tank is specifically used to collect wastewater (dirty water containing stains and impurities) generated after cleaning. The clean water tank and the wastewater tank are designed independently to prevent the mixing of clean water and wastewater, ensuring that only clean water is used for cleaning. At the same time, the wastewater is collected separately, which guarantees the cleaning effect and facilitates subsequent treatment.

[0077] In this application, the terms "embodiment" and "implementation" mean that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The appearance of these phrases in various locations throughout the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Those skilled in the art will understand, explicitly and implicitly, that the embodiments described in this application can be combined with other embodiments. Furthermore, it should be understood that the features, structures, or characteristics described in the various embodiments of this application can be arbitrarily combined to form another embodiment that does not depart from the spirit and scope of the technical solution of this application, provided there is no contradiction between them.

[0078] The above description represents some embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

Claims

1. A hard surface cleaning machine, characterized in that, include: A hard surface cleaning device includes a housing, a water-squeezing structure mounted on the housing, a cleaning roller, and a water tank assembly. The cleaning roller is rotatable around its axis. The water-squeezing structure, the housing, and the cleaning roller form a water tank. The water-squeezing structure or the housing has a clean water outlet and a wastewater outlet communicating with the water tank. Clean water in the water tank assembly can be transferred to the cleaning roller through the clean water outlet. When the cleaning roller rotates against the surface to be cleaned, the clean water can turn into wastewater. The cleaning roller cooperates with the water-squeezing structure to squeeze out the wastewater from the cleaning roller, so that the wastewater is placed in the water tank. At the same time, the clean water can also rinse the cleaning roller and the wastewater. The wastewater is discharged into the water tank assembly through the wastewater outlet. The housing has a receiving groove, and the groove wall has a fastening hole. The handle includes a fixing rod disposed in the receiving groove, and the fixing rod is provided with a fastening element disposed in the fastening hole to fix the handle and the hard surface cleaning device.

2. The hard surface cleaning machine according to claim 1, characterized in that, The fixing rod includes a fixing part with a mounting through hole. The fastening member is disposed in the mounting through hole and connected to the fixing part. The fastening member includes a fastening protrusion. The fastening member can move in a direction close to the axis of the fixing part so that the fastening protrusion of the fastening member can enter the fastening hole, thereby fastening and fixing the fixing rod in the receiving groove.

3. The hard surface cleaning machine according to claim 2, characterized in that, The fixing rod also includes an annular limiting part, which is arranged around the outer periphery of the fixing part and is used to abut against the housing.

4. The hard surface cleaning machine according to claim 3, characterized in that, The fastening component also includes a fastening button, which is located on the side of the annular limiting portion opposite to the fastening protrusion. The fastening button can move in a direction close to the axis of the fixing portion so that the fastening protrusion of the fastening component moves out of the fastening hole.

5. The hard surface cleaning machine according to claim 1, characterized in that, The receiving groove has a first mating part on its wall and a second mating part on the outer periphery of the fixing rod. One of the first mating part and the second mating part is a protrusion and the other is a groove.

6. The hard surface cleaning machine according to claim 1, characterized in that, The handle also includes a connecting rod and an extension rod, the connecting rod being rotatably connected to the fixed rod, and the extension rod being connected to the connecting rod.

7. The hard surface cleaning machine according to claim 6, characterized in that, The fixed rod includes a rotating part that is rotatably connected to the connecting rod. The rotating part includes a first annular gear groove, and the connecting rod includes a second annular gear groove. The first annular gear groove and the second annular gear groove are correspondingly arranged. The handle also includes a locking gear, with a portion of the locking gear located in the first annular gear groove and another portion located in the second annular gear groove, to restrict the rotation of the rotating part relative to the connecting rod.

8. The hard surface cleaning machine according to claim 7, characterized in that, The handle also includes a rotary button that abuts against the locking gear. The rotary button can push the locking gear to move into the second annular gear groove, so that the rotating part can rotate relative to the connecting rod.

9. The hard surface cleaning machine according to claim 8, characterized in that, The rotating part further includes a baffle that abuts against the locking gear. The rotary button passes through the baffle and abuts against the locking gear at least partially. The handle further includes an elastic element, one end of which abuts against the locking gear and the other end of which abuts against the connecting rod. The elastic element is used to reset the locking gear.

10. The hard surface cleaning machine according to claim 1, characterized in that, The water tank assembly includes a clean water tank and a wastewater tank. The clean water in the clean water tank can be transported to the cleaning roller through a clean water pipe, and the wastewater in the cleaning roller can be transported to the wastewater tank through the squeezing structure and the wastewater pipe.

Images