Cleaning accessory and cleaning equipment

Abstract

The invention provides a cleaning accessory and cleaning equipment, and belongs to the field of cleaning equipment. The cleaning accessory comprises an upper section assembly, a middle section assembly and a lower section assembly. The bottom end of the upper section assembly is provided with a driving surface which is obliquely arranged relative to the axis of the cleaning accessory; the middle section assembly and the upper section assembly are connected in a relatively rotating mode and provided with a movable first transmission piece. The lower section assembly is provided with a dust cabin used for collecting dust, a cabin door used for opening and closing the dust cabin and a second transmission part used for triggering the cabin door to be opened. When the upper section assembly rotates relative to the middle section assembly, the driving face acts on the first transmission part so that the first transmission part can drive the second transmission part to trigger the cabin door to be opened. According to the cleaning accessory and the cleaning equipment, the lower dust cabin door can be opened only by rotating the upper section assembly closer to the natural holding area, and the problem that the cover opening operation of the dust cabin door of an existing rod type dust collector is inconvenient can be solved.

Description

Technical Field

[0001] This disclosure belongs to the field of cleaning equipment technology, specifically relating to a cleaning accessory and cleaning equipment. Background Technology

[0002] As household cleaning equipment develops towards lightweight and handheld designs, stick vacuum cleaners have become a common type of product in household cleaning due to their advantages such as slim body, flexible use, and suitability for switching between ground and high places. Summary of the Invention

[0003] Existing stick vacuum cleaners typically include a dust separation structure and a dust collection structure. During cleaning, dirt is sucked into the dust chamber through the cleaning head and collected there. When dust accumulates to a certain level, the user needs to open and empty the dust chamber to restore normal use. To accommodate the overall weight distribution, airflow arrangement, and dust collection path design, many stick vacuum cleaners place the dust chamber and its door in the lower middle section or near the bottom of the body, resulting in a relatively low operating position for the dust chamber door.

[0004] However, under the aforementioned structural arrangement, existing stick vacuum cleaners generally present inconveniences in opening the dustbin door. Since the dustbin door is typically positioned low, users often need to bend over, stoop, or significantly lift and flip the entire machine to reach the opening and complete the operation. For stick vacuum cleaners with longer bodies, this operating posture is not natural, especially in scenarios where immediate emptying of dust is required after continuous cleaning. Users often need to interrupt their current holding position, readjust their grip and operating posture, resulting in cumbersome emptying actions and poor operational continuity.

[0005] In existing technologies, the low position of the dustbin door opening can easily lead to a lack of smooth coordination between the operation and the dustbin emptying action. Users typically need to hold the machine with one hand and approach the lower dustbin area with the other to open the door, or lower the entire machine near the dustbin before finding the appropriate opening point. This operation method not only increases the burden on users in finding and triggering the opening point, but also, when the dustbin is already filled with a lot of dust, hair, or particulate debris, an inconvenient opening action can easily prolong the dustbin emptying time, affecting cleaning efficiency. This problem of inconvenient opening operation becomes even more prominent when frequent dustbin emptying is required after cleaning, thus affecting users' overall evaluation of the convenience of stick vacuum cleaners.

[0006] Therefore, although existing stick vacuum cleaners can achieve basic dust collection and cleaning functions, their dust chamber doors are usually located at a low position on the body, which causes problems such as bending over, unnatural posture, long operation path and insufficient convenience when opening and tilting the lid. All of these problems need to be further improved.

[0007] To address the aforementioned technical issues, the purpose of this disclosure is to provide a cleaning accessory and cleaning device that can open the dust chamber door through a simple rotation operation, thereby improving the user experience.

[0008] To achieve the above objectives, the technical solution provided in this disclosure is as follows:

[0009] In a first aspect, this disclosure provides a cleaning accessory comprising an upper component, a middle component, and a lower component. The upper component is held by the user during use of the cleaning device, and its bottom end is provided with a driving surface inclined relative to the axis of the cleaning accessory. The middle component is rotatably connected to the upper component and is provided with a movable first transmission member. The lower component is provided with a dust chamber for dust collection, a door for opening and closing the dust chamber, and a second transmission member for triggering the opening of the door. When the upper component rotates relative to the middle component, the driving surface acts on the first transmission member, causing the first transmission member to drive the second transmission member to trigger the opening of the door. By utilizing the driving surface of the upper component and the rotation of the upper component relative to the middle component to drive the first and second transmission members in conjunction, the effect of triggering the opening of the lower door by operation from the upper part is achieved, thereby effectively improving the problem of the existing cleaning accessory's dust chamber opening position being too low and inconvenient to operate.

[0010] In one or more embodiments, the first transmission member includes a first push rod disposed near the side wall of the middle section assembly. The upper end of the first push rod abuts against the region of the driving surface near the side edge, and the lower end of the first push rod contacts and engages with the second transmission member, so that the displacement of the first push rod can be transmitted to the second transmission member. By having the upper end of the first push rod engage with the driving surface and the lower end engage with the second transmission member, the displacement change of the driving surface can be stably converted into mechanical input to the second transmission member, improving the directness and reliability of the action transmission.

[0011] In one or more embodiments, the sidewall of the mid-section assembly is provided with a limiting groove for restricting the movement direction of the first push rod. The limiting groove extends axially along the cleaning attachment, and the first push rod is slidably disposed within the limiting groove along the axial direction of the cleaning attachment. By setting the limiting groove to restrict the movement direction of the first push rod, the first push rod can slide stably along the axial direction of the cleaning attachment, thereby helping to avoid the first push rod from swaying, jamming, or force transmission deviation, and improving the stability of the transmission process.

[0012] In one or more embodiments, a first elastic element is provided between the first push rod and the wall surface of the middle section assembly. The first elastic element provides a spring force that tends to keep the first push rod in contact with the driving surface. By providing the first elastic element, the first push rod tends to be kept in contact with the driving surface, thereby reducing the transmission gap, ensuring that the driving surface can act on the first push rod in a timely manner when rotating, and allowing the first push rod to automatically reset after action.

[0013] In one or more embodiments, the second transmission member includes a transmission rod slidable relative to the sidewall of the lower assembly. The transmission rod corresponds to the position of the first push rod, such that the lower end of the first push rod can contact and engage with the upper end of the transmission rod. By providing a transmission rod corresponding to the position of the first push rod in the second transmission member, the displacement of the first push rod can be transmitted to the subsequent stage, thereby establishing a relay transmission relationship between the first push rod and the subsequent actuating structure, ensuring the continuity of the force transmission chain.

[0014] In one or more embodiments, the upper end of the transmission rod is provided with an abutment portion for contacting and engaging with the lower end of the first push rod. A second elastic element is provided between the abutment portion and the wall surface of the lower section assembly. The second elastic element provides a spring force to bring the transmission rod closer to the lower end of the first push rod. By providing an abutment portion on the transmission rod and utilizing the second elastic element to bring the transmission rod closer to the lower end of the first push rod, it is beneficial to expand the contact area, reduce the impact of assembly errors, and enable the transmission rod to automatically reset after the action is completed, thereby improving transmission stability.

[0015] In one or more embodiments, the second transmission member further includes a second push rod slidably disposed on the hatch, the second push rod corresponding to the position of the transmission rod, such that the lower end of the transmission rod can contact and engage with the second push rod to drive the second push rod to trigger the opening operation of the hatch. By providing a second push rod slidably disposed on the hatch, the movement of the transmission rod can be further transmitted to the hatch opening area.

[0016] In one or more embodiments, the dust chamber is equipped with a locking element that can switch between an unlocked position and a locked position, and the door is equipped with a latch that engages with the locking element for locking. When the door is closed, the locking element remains in the locked position and engages with the latch to keep the door closed. By providing a locking element that can switch between an unlocked position and a locking element that engages with it, the door can be reliably locked when closed, thereby ensuring that the dust chamber remains closed during normal use.

[0017] In one or more embodiments, the second push rod, driven by the transmission rod, can switch the locking member to the unlocked position, thereby releasing the locking engagement between the locking member and the latch, and allowing the hatch to switch to the open state. By pushing the locking member to the unlocked position under the drive of the transmission rod, the controlled release of the hatch's locked state is achieved, thus enabling the hatch to switch from a closed state to an open state, improving the controllability of the hatch opening action.

[0018] In one or more embodiments, the locking member has a hook portion, and the latching member has a groove portion for engaging with the hook portion; when the hatch is in the closed state and the locking member is in the locked position, the hook portion can engage with the groove portion to keep the hatch in the closed state. By specifically configuring the locking structure as an engaging engagement between the hook portion and the groove portion, a mechanical locking relationship is formed between the locking member and the latching member, which helps to improve the locking stability when the hatch is closed.

[0019] In one or more embodiments, the lower end of the second push rod can engage with the hook portion, and under the drive of the transmission rod, the second push rod can push against the hook portion, causing the hook portion to disengage from the slot portion. By pushing the hook portion with the second push rod, the hook portion is disengaged from the slot portion, thereby releasing the locking relationship, reducing intermediate transitions in the unlocking process, and improving the efficiency of the unlocking action.

[0020] In one or more embodiments, a third elastic element is provided between the second push rod and the hatch, the third elastic element providing a spring force that tends to move the second push rod away from the locking element; a fourth elastic element is provided between the locking element and the dust chamber, the fourth elastic element providing a spring force that tends to keep the locking element in the locked position. By respectively providing the third and fourth elastic elements, the second push rod can be reset away from the locking element after action, and the locking element tends to be kept in the locked position, thereby facilitating the automatic return of the second push rod and the locking element to their initial state after the cover is opened, and improving the stability of the mechanism's cyclic operation.

[0021] In one or more embodiments, the latch is provided with a first guide surface on one side, and the locking member is provided with a second guide surface that cooperates with the first guide surface. During the process of the hatch switching from an open state to a closed state, the first guide surface can push against the second guide surface, causing the locking member to overcome the elastic force of the fourth elasticity and shift to the unlocked position. After the hatch is closed, the locking member returns to the locked position under the action of the fourth elasticity and locks with the latch. By providing the first and second guide surfaces, the hatch can automatically push the locking member to move aside during the closing process and automatically lock after closing, thereby improving the smoothness of the hatch closing action and simplifying the user's operation when reclosing the hatch.

[0022] In one or more embodiments, the hatch includes a hinged end and a free end. The hinged end is hinged to the dust chamber, and the locking element is located at the free end. A fifth elastic element is provided between the hinged end and the dust chamber, and the fifth elastic element provides an opening force to the hatch. By providing the hinged end, the free end, and the fifth elastic element for providing the opening force, the hatch can automatically flip open after the lock is released, reducing the need for the user to manually operate the hatch.

[0023] Secondly, this disclosure provides a cleaning device, which includes a cleaning head and the aforementioned cleaning attachment, wherein the cleaning head is connected to the cleaning attachment.

[0024] The cleaning accessories and equipment disclosed herein establish a top-to-bottom mechanical linkage opening path by setting an inclined driving surface on the upper component. When the upper component rotates relative to the middle component, the driving surface acts on the first transmission component, which in turn drives the second transmission component to trigger the opening of the lower component's door. When users need to empty the dust chamber, they do not need to open the door directly near the lower dust chamber. Instead, they only need to rotate the upper component, which is closer to the natural grip area, to open the lower door. This effectively improves the inconvenience caused by the low position of the dust chamber door in existing stick vacuum cleaners, requiring bending over or changing the holding posture to open the door. Furthermore, this solution achieves the action conversion between upper input and lower execution based on mechanical transmission, eliminating the need for electrical components such as motors, electromagnets, or sensors. The structure is simple, reliable, and low-cost. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments recorded in this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of a cleaning device in one embodiment of the present disclosure;

[0027] Figure 2 This is a schematic diagram of the cleaning accessory with the hatch open in one embodiment of the present disclosure;

[0028] Figure 3 This is a cross-sectional view of the cleaning attachment with the hatch open in one embodiment of the present disclosure;

[0029] Figure 4 This is a cross-sectional view of the cleaning attachment with the hatch closed in one embodiment of the present disclosure;

[0030] Figure 5 This is an exploded view of a portion of the structure in one embodiment of the present disclosure;

[0031] Figure 6 This is a cross-sectional view of a portion of the structure in one embodiment of this disclosure;

[0032] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0033] Explanation of key figure labels:

[0034] 100-Cleaning head, 200-Cleaning attachment, 1-Upper section assembly, 11-Drive surface, 2-Middle section assembly, 21-First transmission component, 211-First push rod, 212-Flange structure, 22-Limiting groove, 23-First elastic component, 3-Lower section assembly, 31-Dust chamber, 311-Locking component, 312-Hook part, 313-Second guide surface, 32-Door, 321-Lock component, 322-Slot part, 323-First guide surface, 324-Hinged end, 325-Free end, 33-Second transmission component, 331-Transmission rod, 332-Abutting part, 333-Second push rod, 34-Second elastic component, 35-Third elastic component, 36-Fourth elastic component, 37-Fifth elastic component. Detailed Implementation

[0035] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0036] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.

[0037] It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. In the embodiments shown in this disclosure, directional representations such as up, down, left, right, front, and back are relative and are used to explain the relative structure and movement of different components in this disclosure. These representations are appropriate when the components are in the positions shown in the figures. However, if the description of the component positions changes, then these representations are considered to change accordingly.

[0038] As cleaning equipment continues to evolve towards lighter, handheld, and integrated designs, stick cleaning devices (such as vacuum cleaners) are increasingly compact in their overall structural layout. To balance airflow, dust collection path, overall center of gravity, and ease of handling, dust collection-related structures are typically positioned relatively low. While this layout is advantageous for meeting the demands of overall performance and structural integration, it also shifts the operational area related to dust collection downwards.

[0039] When users need to release accumulated dust or open the dust chamber, they often need to change their original holding posture, or even bend over, switch hands, or readjust the device position to complete the operation. Based on continuous observation of this usage process, the inventors discovered that the problem with the existing technology is not mainly that the device lacks a cover-opening function, but that there is a lack of coordination between the trigger position and operation path of the cover-opening action and the user's natural holding action, resulting in a less than ideal user experience despite the presence of the function.

[0040] Further analysis reveals that rod-type cleaning devices exhibit a distinct axial extension characteristic, with the upper region typically closer to the user's natural operating area, while the lower region primarily undertakes execution functions. Existing technologies generally emphasize the spatial arrangement and performance realization of each functional module in their structural layout, but lack an overall design approach that balances convenience, reliability, and structural adaptability in terms of how to naturally and reliably transmit high-level operational intentions to low-level execution parts.

[0041] Based on the above understanding, this disclosure proposes a remote linkage-based opening mechanism for stick-type cleaning attachments, starting from the overall machine operation logic and motion transmission logic. The core of this approach lies in designating the upper area, which is more easily accessible and conforms to natural operating habits, as the operation input, and the lower area, which performs the dust collection and release function, as the motion execution end. A mechanical linkage is then established between the two to achieve motion conversion and transmission. User actions performed in the higher area can be converted and transmitted level by level, ultimately triggering the dust collection opening mechanism in the lower area. This transforms operations that originally needed to be performed directly in the lower area into operations that can be completed in a more natural human-machine interaction area.

[0042] In other words, the implementation idea of ​​this disclosure lies in establishing an overall mechanism suitable for long-pole structure products, featuring high-level input, low-level execution, and linked triggering. This mechanism enables collaborative relationships between different functional areas: the upper area handles human-machine interaction input, the middle or transition area handles motion transmission and state transitions, and the lower area handles activation and dust collection. This approach not only improves upon the inconvenience caused by the low operating position in existing technologies but also makes the user's operation path smoother and the action transitions more natural without altering the overall functional division of the product.

[0043] Please refer to Figure 1 As shown, a cleaning device in one embodiment of this disclosure includes a cleaning head 100 and a cleaning attachment 200. The cleaning head 100 and the cleaning attachment 200 are connected to form an overall actuator for completing cleaning operations on the floor or other areas to be cleaned.

[0044] The cleaning attachment 200 is generally rod-shaped, with an upper section component 1, a middle section component 2, and a lower section component 3 arranged sequentially from top to bottom along the axial direction. The upper section component 1, middle section component 2, and lower section component 3 can be independently interconnected, form a single integrated structure, or be a modular structure composed of several sections. Through this axial segmented layout, the cleaning attachment 200 can achieve the orderly integration of multiple functions such as energy storage, drive, dust-air separation, and dust collection within a limited longitudinal space, thus meeting the comprehensive requirements of rod-type cleaning equipment in terms of overall size, grip center of gravity, airflow organization, and functional module arrangement.

[0045] It should be noted that the division of the upper component 1, the middle component 2, and the lower component 3 is mainly based on the functional distinction of the cleaning attachment 200 along its axis relative to the user's position under normal use. It is used to describe the approximate distribution of the relevant structures in the overall attachment, rather than to limit the cleaning attachment 200 to consist of three independent and separable physical segments.

[0046] In other words, the upper component 1, the middle component 2, and the lower component 3 can correspond to three independently set and connected structural parts, or they can correspond to different areas in a single integrated structure, or they can be composed of two or more inseparable parts. As long as the relevant parts are located in a relatively upper, central, or relatively lower position when the cleaning accessory 200 is in use, and can achieve the corresponding structural cooperation and functional role, they can all be considered to belong to the category of upper component 1, middle component 2, and lower component 3.

[0047] Therefore, the names of the upper component 1, the middle component 2, and the lower component 3 are only used to indicate the relative positional relationship of each part when the cleaning accessory 200 is in use, and should not be construed as limiting the specific number of segments, the form of the parts, or the way they can be disassembled.

[0048] The upper component 1 is located in the upper region of the cleaning accessory 200, and is preferably used as the mounting location for an energy storage module, such as a battery pack. The battery pack can provide operating power to electrical components such as the fan and control unit, thereby establishing a basic energy supply for the operation of the entire machine.

[0049] Since the upper component 1 is typically located near the user's grip area, it can be held by the user while using the cleaning equipment. Placing the battery pack within the upper component 1 not only improves space utilization but also helps optimize mass distribution based on the overall grip posture, ensuring the cleaning accessory 200 maintains a suitable operational balance during use. The upper component 1 and the middle component 2 are arranged adjacent to each other axially and form an assembly relationship through corresponding connecting structures, allowing power transmission, structural support, and the overall force path to extend continuously from top to bottom.

[0050] The middle section component 2 is located between the upper section component 1 and the lower section component 3. It serves as an intermediate support connecting the upper section component 1 and the lower section component 3, and can also be used as the main area for the drive control module. The middle section component 2 can be equipped with drive control modules such as fans and control units. The fans are used to provide negative pressure for driving airflow, and the control units are used to control and coordinate the fans and other functional components of the whole machine.

[0051] A power connection is established between the fan and the battery pack, enabling the fan to operate with the power provided by the battery pack. The control unit is also electrically connected to the battery pack to control the overall operating status of the machine. In addition to its driving and control functions, the middle section component 2 also serves as a carrier for the airflow path, allowing the dust-laden airflow from the cleaning head 100 to be transmitted upwards or backwards along the internal path of the cleaning accessory 200, and after separation, the clean airflow is discharged through the exhaust port located at the middle section component 2.

[0052] The lower component 3 is located in the lower area of ​​the cleaning accessory 200 and can be equipped with a dust-air separation module. The dust-air separation module may include a filtration unit, a cyclone separator, and a dust collection unit. The filtration unit is used to further block or purify fine particles in the airflow, the cyclone separator is used to achieve dust-air separation using rotating airflow, and the dust collection unit is used to collect and store the separated contaminants.

[0053] By arranging the dust-air separation module in the lower section assembly 3, the dirt sucked in by the cleaning head 100 can be separated and collected as quickly as possible after entering the cleaning accessory 200, thereby shortening the flow path of the dust-laden airflow inside the equipment. The lower section assembly 3 and the middle section assembly 2 are structurally adjacent and connected, forming an interconnected airflow channel inside. This allows the negative pressure generated by the fan in the middle section assembly 2 to be transmitted to the lower section assembly 3 and the cleaning head 100 connected to the lower section assembly 3, thereby creating suction at the cleaning head 100 for removing dirt.

[0054] The cleaning head 100, as the actuating component of the cleaning equipment, acts on the surface to be cleaned. After being connected to the cleaning accessory 200, it can remove dust, particles, hair, or other dirt from the surface to be cleaned under the negative pressure generated by the fan. The cleaning head 100 is connected to the lower component 3, allowing the dust-laden airflow drawn in by the cleaning head 100 to enter the interior of the cleaning accessory 200 and further flow to the dust-air separation module.

[0055] After the contaminants are sucked in, they can be initially filtered by the filter screen and then separated into dust and gas in the cyclone separation unit. Larger particles or higher quality contaminants can be separated from the airflow under the action of filtration and centrifugation and stored in the dust collection unit. The remaining airflow is then further purified by the filter unit (such as HEPA filter), so that the airflow with a higher degree of cleanliness continues to flow along the internal channel to the middle section component 2 and is finally discharged through the exhaust port.

[0056] In one exemplary embodiment, please refer to Figures 2 to 4 As shown, the upper section component 1 has a driving surface 11 at its bottom end that is inclined relative to the axis of the cleaning attachment 200; the middle section component 2 is rotatably connected to the upper section component 1 and has a movable first transmission member 21; the lower section component 3 has a dust chamber 31 for dust collection, a door 32 for opening and closing the dust chamber 31, and a second transmission member 33 for triggering the door 32 to open; wherein, when the upper section component 1 rotates relative to the middle section component 2, the driving surface 11 acts on the first transmission member 21, so that the first transmission member 21 drives the second transmission member 33 to trigger the door 32 to open.

[0057] The drive surface 11 serves as the mechanical output interface for the rotational motion of the upper component 1, converting the rotational operation applied by the user to the upper component 1 into a displacement input that can be utilized by the transmission structure. The drive surface 11 can be formed at the bottom end of the housing of the upper component 1, for example, by machining to form a surface with a predetermined inclination angle, or by injection molding integrally forming it at the bottom end of the housing of the upper component 1. Arranging the drive surface 11 at the bottom end of the upper component 1 allows for a stable circumferential height change of the drive surface 11 during relative rotation of the upper component 1, and also facilitates the interaction between the drive surface 11 and the first transmission member 21 located within the middle component 2, thereby providing a basis for subsequent motion conversion and force transmission.

[0058] The middle section assembly 2 is rotatably connected to the upper section assembly 1, allowing the upper section assembly 1 to rotate relative to the middle section assembly 2 about the axis of the cleaning attachment 200. This connection allows the upper section assembly 1 to become the operation input point, while the middle section assembly 2 serves as a relatively stable support and relay point, creating conditions for the downward transmission of rotational motion, without altering the overall long rod-like layout of the cleaning attachment 200.

[0059] The first transmission component 21 and the driving surface 11 form a kinematic fit relationship. When the upper component 1 rotates relative to the middle component 2, the driving surface 11 is inclined relative to the axis of the cleaning accessory 200 and has different axial heights at different positions in the circumferential direction. Therefore, the driving surface 11 can exert a pushing force on the first transmission component 21 during rotation, causing the first transmission component 21 to produce a corresponding displacement.

[0060] The lower component 3 is located in the lower area of ​​the cleaning attachment 200. The lower component 3 includes a dust chamber 31, a door 32, and a second transmission component 33. The dust chamber 31 is used to hold dust, particles, or other contaminants separated and collected during the cleaning process. The door 32 is used to open the dust chamber 31 after cleaning to discharge the contaminants accumulated within it. Since the dust chamber 31 is typically located relatively low on the cleaning attachment 200, if a manual opening mechanism is directly installed on the lower component 3, users would often need to bend over or reach significantly downwards to empty the dust, resulting in relatively poor operational convenience.

[0061] The lower component 3 further incorporates a second transmission member 33, enabling it to respond to mechanical input from the upper component 1 instead of relying solely on the user's direct opening action near the dust chamber 31, thus triggering the opening of the door 32. The second transmission member 33 and the first transmission member 21 form a force transmission relationship. When the first transmission member 21 is displaced under the action of the drive surface 11, this displacement is transmitted to the second transmission member 33, which then applies the mechanical action to the opening mechanism of the door 32, thereby triggering the opening of the dust chamber 31 door 32.

[0062] Through the aforementioned structural arrangement, the cleaning attachment 200 can establish a mechanical linkage path extending from top to bottom, allowing the opening of the lower door 32 to be triggered by an operation from the upper part. This design is closer to the user's natural grip and operating area. When the user needs to open the dust chamber 31, they can trigger the opening of the lower door 32 by rotating the upper component 1, without having to directly search for and operate the opening part in the lower area of ​​the cleaning attachment 200. This improves the ease of operation and overall user experience of the cleaning attachment 200 in actual use.

[0063] In one exemplary embodiment, please refer to Figures 3 to 5 As shown, the first transmission member 21 includes a first push rod 211 disposed near the side wall of the middle section component 2. The upper end of the first push rod 211 abuts against the area near the side edge of the driving surface 11, and the lower end of the first push rod 211 contacts and engages with the second transmission member 33, so that the displacement of the first push rod 211 can be transmitted to the second transmission member 33.

[0064] The first push rod 211 can serve as a force transmission component within the middle section assembly 2. Its upper end faces the driving surface 11 at the bottom of the upper section assembly 1, and its lower end extends towards the second transmission component 33, thereby establishing a motion transmission relationship between the upper section assembly 1 and the lower section assembly 3 that extends axially along the cleaning attachment 200. The first push rod 211 is located near the middle section assembly 2, which helps to establish a spatial correspondence between the first push rod 211 and the edge area of ​​the driving surface 11, allowing the displacement changes generated when the driving surface 11 rotates to act more effectively on the first push rod 211; it also helps to reserve corresponding space around other functional components inside the middle section assembly 2.

[0065] Because the driving surface 11 is inclined relative to the axis of the cleaning attachment 200, when the upper component 1 rotates relative to the middle component 2 around the axis of the cleaning attachment 200, the axial height of the driving surface 11 varies at different circumferential positions, especially in the area near the side edge, where this height variation is more noticeable. After the upper end of the first push rod 211 abuts against the area of ​​the driving surface 11 near the side edge, the driving surface 11 can exert a relatively significant pushing force on the first push rod 211 during rotation by utilizing the height variation of this side edge area, thereby causing the first push rod 211 to displace in a predetermined direction.

[0066] When the upper component 1 rotates relative to the first push rod 211, the drive surface 11 first applies a mechanical action to the upper end of the first push rod 211. After being subjected to this action, the first push rod 211 generates a displacement and transmits this displacement downward through the contact relationship between the lower end and the second transmission member 33, so that the second transmission member 33 obtains the mechanical input to trigger the opening of the hatch 32.

[0067] Specifically, please refer to Figure 3 and Figure 4 As shown, the side wall of the middle section component 2 is provided with a limiting groove 22 for restricting the movement direction of the first push rod 211. The limiting groove 22 extends along the axial direction of the cleaning attachment 200, and the first push rod 211 is slidably disposed in the limiting groove 22 along the axial direction of the cleaning attachment 200.

[0068] The limiting groove 22 is used to constrain and guide the movement path of the first push rod 211, thereby enabling the first push rod 211 to be oriented within the path defined by the limiting groove 22 in the middle section assembly 2. By setting the limiting groove 22 on the side wall of the middle section assembly 2 and housing the first push rod 211 in the limiting groove 22, a guiding fit relationship can be formed between the middle section assembly 2 and the first push rod 211, so that when the first push rod 211 is acted upon by the driving surface 11, it can be displaced in a predetermined direction, and is less likely to wobble, sway, or misalign in the circumferential, radial, or inclined directions.

[0069] During the rotation of the upper component 1 relative to the middle component 2, the driving surface 11 exerts a pushing force on the first push rod 211 due to the axial height change caused by its inclined setting. This pushing force ultimately needs to be converted into displacement transmitted along the axial direction of the cleaning attachment 200 to further drive the downstream second transmission component 33. Therefore, the ideal movement of the first push rod 211 should be a linear sliding along the axial direction of the cleaning attachment 200, rather than lateral movement or arbitrary directional deviation. Based on this, the limiting groove 22 is configured to extend along the axial direction of the cleaning attachment 200, so that the extension direction of the limiting groove 22 is consistent with the target movement direction of the first push rod 211, thereby effectively guiding the first push rod 211.

[0070] Further, please refer to Figures 3 to 5 As shown, a first elastic element 23 is provided between the first push rod 211 and the wall of the middle section component 2. The first elastic element 23 is used to provide an elastic force that tends to keep the first push rod 211 in contact with the drive surface 11.

[0071] The first elastic element 23 can be a compression spring. Located between the first push rod 211 and the middle section assembly 2, it forms an elastic support relationship between them that acts along the moving direction of the first push rod 211. With this elastic support, the first push rod 211, when not subjected to significant pushing force from the driving surface 11, tends to remain in contact with the driving surface 11 under the action of the first elastic element 23, maintaining a stable contact state between them. This configuration allows the driving surface 11 to apply force to the first push rod 211 promptly when rotating with the upper section assembly 1, avoiding idle travel due to gaps between them and improving the sensitivity of the action triggering.

[0072] To facilitate the installation and force transmission of the first elastic element 23, a flange structure 212 can be provided on the outer periphery of the first push rod 211. The first elastic element 23 can be sleeved on the first push rod 211, with one end of the first elastic element 23 abutting against the flange structure 212 and the other end abutting against the wall surface or positioning rib structure of the middle section component 2. The flange structure 212 can serve as the force-bearing part of the first elastic element 23 acting on the first push rod 211, while the wall surface or positioning rib structure of the middle section component 2 constitutes the supporting part of the first elastic element 23. This allows the first elastic element 23 to undergo elastic deformation during the movement of the first push rod 211 and continuously provide a restoring force towards the driving surface 11 to the first push rod 211.

[0073] When the driving surface 11 applies a pushing force to the first push rod 211, the first push rod 211 is displaced, and the first elastic element 23 is correspondingly compressed and stores elastic potential energy. After the driving surface 11 releases the pushing force, the first elastic element 23 releases the elastic potential energy, pushing the first push rod 211 upward to reset, so that the first push rod 211 returns to its initial state of contact with the driving surface 11. Thus, the first elastic element 23 can both ensure that the first push rod 211 is always in a driveable standby position during operation and can automatically reset after the action is completed, thereby providing conditions for the repeated action of the first push rod 211.

[0074] In one exemplary embodiment, please refer to Figures 3 to 5 As shown, the second transmission component 33 includes a transmission rod 331 that can slide relative to the side wall of the lower section component 3. The transmission rod 331 is positioned corresponding to the first push rod 211, so that the lower end of the first push rod 211 can contact and engage with the upper end of the transmission rod 331.

[0075] The transmission rod 331 is disposed within the lower section assembly 3 and is arranged vertically in relation to the first push rod 211 in the direction of motion transmission. By allowing the transmission rod 331 to slide relative to the side wall of the lower section assembly 3, the transmission rod 331 can be displaced along a predetermined path within the lower section assembly 3, thereby continuing to transmit the mechanical action from the first push rod 211 to the downstream structure. The side wall of the lower section assembly 3 serves as the mounting base for the transmission rod 331, limiting and supporting the movement trajectory of the transmission rod 331 to ensure good motion stability during force application and avoid significant swaying or misalignment.

[0076] The transmission rod 331 is positioned corresponding to the first push rod 211, allowing the lower end of the first push rod 211 to contact and engage with the upper end of the transmission rod 331. This arrangement enables the displacement output by the first push rod 211 to be transmitted to the transmission rod 331. Specifically, when the first push rod 211 is displaced under the action of the driving surface 11, the lower end of the first push rod 211 applies a pushing force to the upper end of the transmission rod 331, thereby driving the transmission rod 331 to move synchronously. Thus, the transmission rod 331 acts as a relay force transmitter in the entire transmission chain, further guiding the action output by the first push rod 211 into the subsequent structure, providing a basis for the subsequent triggering of the hatch 32 to open.

[0077] Since the first push rod 211 is located in the middle section assembly 2, while the hatch 32 opening structure is located in the lower section assembly 3, there is a certain spatial gap between them. Therefore, a transmission rod 331 is set as an intermediate force transmission component to achieve the connection of actions between different components. The transmission rod 331 is arranged in a sliding fit with the side wall of the lower section assembly 3, which is conducive to forming a clear force transmission path within the lower section assembly 3 and also facilitates compact installation in conjunction with the shell structure of the lower section assembly 3. At the same time, the first push rod 211 and the transmission rod 331 adopt an upper and lower contact fit, which enables the displacement of the front-stage transmission component to be directly converted into the action of the rear-stage transmission component, reducing intermediate conversion links, thereby improving the timeliness and reliability of transmission response.

[0078] Specifically, please refer to Figures 3 to 5 As shown, the upper end of the transmission rod 331 is provided with an abutment portion 332 for contacting and cooperating with the lower end of the first push rod 211. A second elastic member 34 is provided between the abutment portion 332 and the wall surface of the lower section assembly 3. The second elastic member 34 is used to provide elastic force to make the transmission rod 331 tend to approach the lower end of the first push rod 211.

[0079] The abutment portion 332 preferably extends in a direction perpendicular to the axial direction of the cleaning attachment 200 and is generally flat. This allows the top surface of the abutment portion 332 to form a more defined force-bearing area, so that the first push rod 211 can stably push against the abutment portion 332 when it moves downward. Compared with point or line contact, the abutment portion 332 adopts a transversely extending structure, which is more conducive to expanding the contact range with the first push rod 211, reducing the sensitivity of the two in terms of assembly position and movement coordination, so that even if there is a certain positional tolerance at the lower end of the first push rod 211, it can still reliably act on the abutment portion 332, thereby ensuring the stability of the action transmission.

[0080] A second elastic element 34 is provided between the abutment portion 332 and the wall surface or positioning rib structure of the lower component 3. The second elastic element 34 is used to provide a spring force to the transmission rod 331 to tend to approach the lower end of the first push rod 211. That is, the second elastic element 34 enables the transmission rod 331 to always have a tendency to return towards the first push rod 211, so that the abutment portion 332 tends to maintain a state close to the lower end of the first push rod 211 under normal conditions, or maintains a ready state to contact the lower end of the first push rod 211 in a timely manner. Through this setting, the transmission gap between the first push rod 211 and the transmission rod 331 can be reduced, avoiding obvious free stroke when the previous action is transmitted to the lower component 3. At the same time, it also helps to ensure that the transmission rod 331 returns to the initial position in a timely manner after each force action, preparing for the next trigger.

[0081] When the first push rod 211 moves downward and abuts against the top surface of the abutment part 332, the transmission rod 331 moves downward under this action, and the second elastic element 34 undergoes corresponding elastic deformation. After the first push rod 211 releases its pushing action on the abutment part 332, the second elastic element 34 releases its elastic potential energy, pushing the transmission rod 331 to reverse and reset, causing the abutment part 332 to move closer to the lower end of the first push rod 211 again. Thus, the abutment part 332 mainly undertakes the function of receiving the displacement input from the previous stage, and the second elastic element 34 mainly undertakes the function of pre-tightening and resetting the transmission rod 331. The two cooperate with each other, so that the transmission rod 331 can not only reliably receive the mechanical action transmitted from the first push rod 211, but also automatically return to a state suitable for transmission again after the action is completed, thereby improving the continuity and reusability of the entire transmission link.

[0082] Further, please refer to Figures 3 to 6 As shown, the second transmission component 33 also includes a second push rod 333 slidably disposed on the hatch 32. The second push rod 333 corresponds to the position of the transmission rod 331, so that the lower end of the transmission rod 331 can contact and cooperate with the second push rod 333 to drive the second push rod 333 to trigger the opening operation of the hatch 32.

[0083] The transmission rod 331, as an intermediate force-transmitting component located within the lower section assembly 3, serves to further transmit the displacement from upstream to the hatch 32 region. The second push rod 333, as the final-stage actuating component close to the hatch 32 opening section, is responsible for further converting the mechanical action transmitted from the transmission rod 331 into an actual triggering action on the hatch 32 opening mechanism. Through this arrangement, the transmission chain can extend from the middle section assembly 2 to the area where the hatch 32 is located and transmit the force to the hatch 32 opening operation.

[0084] The second push rod 333 and the hatch 32 form a sliding guide engagement, which allows the second push rod 333 to move relative to the hatch 32 in a predetermined direction. Simultaneously, placing the second push rod 333 on the hatch 32 also helps to shorten the force transmission distance between the second push rod 333 and the opening part of the hatch 32, making the final stage triggering action more direct and reducing force transmission deviations and response delays caused by intermediate links.

[0085] The second push rod 333 corresponds to the position of the transmission rod 331, allowing the lower end of the transmission rod 331 to contact and engage with the second push rod 333. This arrangement allows the displacement output by the transmission rod 331 to continue to be transmitted towards the hatch 32. When the transmission rod 331 moves in a predetermined direction under the action of the upstream structure, its lower end can exert a pushing force on the second push rod 333. Under this action, the second push rod 333 slides relative to the hatch 32, further triggering the hatch 32 opening mechanism.

[0086] Since the hatch 32 is a movable component that can be opened and closed, while the transmission rod 331 is located in the relatively fixed part of the lower assembly 3, the placement of the second push rod 333 between the fixed and movable structures facilitates the functional connection between them. Specifically, when the hatch 32 is closed, the second push rod 333 maintains a predetermined correspondence with the transmission rod 331, allowing the transmission rod 331 to act on the second push rod 333 during operation. When the hatch 32 is opened, the second push rod 333 can move to the corresponding position according to the overall state of the hatch 32, thus maintaining a consistent structural relationship between the second push rod 333 and the hatch 32 body.

[0087] In one exemplary embodiment, please refer to Figures 3 to 6 As shown, the dust chamber 31 is provided with a locking element 311 that can switch between an unlocked position and a locked position, and the door 32 is provided with a latch 321 that cooperates with the locking element 311 to lock; when the door 32 is closed, the locking element 311 can remain in the locked position and cooperate with the latch 321 to keep the door 32 in the closed state.

[0088] Locking element 311 is disposed on one side of the dust chamber 31 body, forming a stable installation relationship between locking element 311 and dust chamber 31, and can be switched in position within the installation space defined by dust chamber 31; latching element 321 is disposed on the door 32, and latching element 321 moves together with the opening and closing of door 32. Thus, locking element 311 and latching element 321 are respectively arranged on the dust chamber 31 and door 32, two relatively openable components. The two gradually approach and cooperate during the closing of door 32, and disengage during the opening of door 32, thereby structurally constituting a locking mechanism for maintaining the closed state of door 32.

[0089] The locking element 311 can switch between an unlocked position and a locked position. The locked position corresponds to the state in which it is locked to the latch 321, and the unlocked position corresponds to the state in which it is released from the locking engagement with the latch 321. By giving the locking element 311 the aforementioned position switching capability, the closing and holding and opening and releasing of the hatch 32 can correspond to different working states of the locking element 311, thereby giving the opening and closing control of the hatch 32 a clearer action logic.

[0090] In other words, whether the hatch 32 can be kept closed does not solely depend on the hatch 32's own weight or friction, but rather on whether the locking element 311 is in the locked position and effectively engages with the latch element 321. This design helps improve the reliability of the hatch 32's closed state, preventing the hatch 32 from opening on its own due to the lack of a locking structure when the cleaning accessory 200 moves, vibrates, or is subjected to external impacts.

[0091] The latch 321 serves as the locked part on one side of the hatch 32, and is used to cooperate with the locking element 311 after the hatch 32 is closed to establish a closed and retaining relationship for the hatch 32. The latch 321 can be understood as a functional part on the hatch 32 that interacts with the locking element 311, and its position can be set in the end area of ​​the hatch 32 so that it enters the locking range corresponding to the locking element 311 when the hatch 32 is closed in place.

[0092] When the hatch 32 changes from the open state to the closed state, the latch 321 enters the working area of ​​the locking member 311. The locking member 311 remains in the locked position and restricts the latch 321, thereby blocking or restraining the hatch 32 and preventing it from opening on its own without being unlocked. Because the locking member 311 can remain in the locked position when closed, the hatch 32 can remain stably closed during daily use and will not be accidentally opened due to changes in the posture of the cleaning accessory 200, the gravity of the debris inside the dust chamber 31, or vibrations generated during cleaning.

[0093] Specifically, please refer to Figures 3 to 6 As shown, the second push rod 333 can switch the locking member 311 to the unlocked position under the drive of the transmission rod 331, so as to release the locking engagement between the locking member 311 and the latch member 321, and switch the hatch 32 to the open state.

[0094] The second push rod 333, acting as the final triggering component acting on the locking member 311, converts the mechanical displacement transmitted from the previous stage into a release action of the locked state. The transmission rod 331 and the second push rod 333 form a front-to-back connection, the second push rod 333 and the locking member 311 form a triggering engagement relationship, and the locking member 311 then forms a locking or unlocking relationship with the latch member 321, thereby establishing an action transmission path between the transmission structure and the hatch 32 opening and closing structure. With the aforementioned structural arrangement, the rotational action of the upper component 1, after being transmitted down through the first push rod 211 and the transmission rod 331, can act on the locking member 311 through the second push rod 333, enabling the hatch 32, which was originally in a locked state, to obtain the release condition.

[0095] The transmission rod 331 receives displacement input from the preceding stage and transmits this displacement to the second push rod 333. The second push rod 333 then guides this action to the locking member 311, causing the locking member 311 to deviate from its original locked position and switch to the unlocked position after being subjected to force. After the locking member 311 disengages from the locking engagement with the latch 321, the hatch 32 loses its closing constraint and can thus switch from the closed state to the open state. When the locking member 311 retracts from the locked position, the latch 321 loses its constraint from the locking member 311, and the hatch 32 can then switch to the open state under the action of a subsequent opening force.

[0096] In one exemplary embodiment, please refer to Figures 3 to 7 As shown, the locking member 311 is provided with a hook portion 312, and the locking member 321 is provided with a groove portion 322 for engaging with the hook portion 312; when the hatch 32 is in the closed state and the locking member 311 is in the locked position, the hook portion 312 can engage with the groove portion 322 to keep the hatch 32 in the closed state.

[0097] The hook portion 312 is formed on the locking member 311, serving as the functional part of the locking member 311 to perform the locking function; the slot portion 322 is formed on the latching member 321, serving as the receiving part for the hook portion 312 to enter and form a limiting engagement. By realizing the locking relationship as the engagement between the hook portion 312 and the slot portion 322, on the one hand, the functional position between the locking member 311 and the latching member 321 can be more clearly defined, and on the other hand, it is also conducive to forming a more stable mechanical limiting relationship after the hatch 32 is closed, thereby ensuring that the hatch 32 can reliably remain closed in the non-unlocked state.

[0098] As the hatch 32 moves from the open state to the closed state and gradually approaches the dust chamber 31, the latch 321 moves synchronously with the hatch 32, and the slot 322 enters the area corresponding to the hook 312. When the locking member 311 is in the locked position, the hook 312 can enter the slot 322 or form an embedded engagement with the slot 322, thereby establishing a locking engagement between the locking member 311 and the latch 321. Through the mechanical constraint formed by the shape fit between the hook 312 and the slot 322, the displacement of the hatch 32 in the opening direction can be effectively limited, keeping the hatch 32 in the closed state.

[0099] Specifically, please refer to Figures 3 to 7 As shown, the lower end of the second push rod 333 can contact and engage with the hook part 312. Driven by the transmission rod 331, the second push rod 333 can push against the hook part 312, causing the hook part 312 to disengage from the slot part 322.

[0100] When the transmission rod 331 is displaced under the action of the preceding transmission structure, the transmission rod 331 can drive the second push rod 333 to move synchronously. The second push rod 333 applies a pushing force to the hook portion 312 with its lower end, thereby causing the locking member 311 to move from its original locked position to the unlocking direction, so that the hook portion 312 disengages from its original engagement with the slot portion 322. For example, the second push rod 333 can enter the corresponding area of ​​the slot portion 322 during the operation and exert a pushing force on the hook portion 312 from the inside; or it can push the hook portion 312 from the outside, causing the hook portion 312 to shift and exit the slot portion 322.

[0101] Furthermore, a third elastic element 35 is provided between the second push rod 333 and the hatch 32, the third elastic element 35 being used to provide a spring force that tends to move the second push rod 333 away from the locking member 311; a fourth elastic element 36 is provided between the locking member 311 and the dust chamber 31, the fourth elastic element 36 being used to provide a spring force that tends to keep the locking member 311 in the locked position.

[0102] The third elastic element 35 is disposed between the second push rod 333 and the hatch 32, so that after the second push rod 333 moves relative to the hatch 32, it tends to move away from the locking element 311 under the action of the third elastic element 35; the fourth elastic element 36 is disposed between the locking element 311 and the dust chamber 31, so that after the locking element 311 deviates from the locked position, it tends to return and remain in the locked position under the action of the fourth elastic element 36. By providing independent elastic elements at the second push rod 333 and the locking element 311 respectively, the relevant components can automatically return to the initial standby state after the unlocking action is completed, thereby ensuring that the hatch 32 opening mechanism can re-establish a stable initial position relationship after each action.

[0103] The third elastic element 35 is mainly used to provide a restoring force to the second push rod 333. If the second push rod 333 remains near the locking member 311 after the transmission rod 331 releases its drive, it may continue to interfere with the subsequent reset of the locking member 311 and may also affect the normal cooperation between related components when the hatch 32 closes again. Therefore, a third elastic element 35 is provided between the second push rod 333 and the hatch 32, so that the second push rod 333 can automatically return to a direction away from the locking member 311 after completing the unlocking action, thereby promptly exiting the area of ​​action of the locking member 311.

[0104] When the second push rod 333 moves relative to the hatch 32 under the drive of the transmission rod 331, the third elastic element 35 undergoes elastic deformation and stores elastic potential energy. After the external driving force is released, the third elastic element 35 releases the elastic potential energy and pushes the second push rod 333 back to its original position. This configuration allows the second push rod 333 to return to its initial position without relying on gravity or manual intervention, which helps to avoid the second push rod 333 becoming stuck in the unlocking area due to attitude changes, frictional resistance, or residual forces.

[0105] The fourth elastic element 36 is mainly used to keep the locking element 311 in the locked position under normal conditions. When the hatch 32 is closed and not triggered to open, the locking element 311 can be stably kept in the locked position under the action of the fourth elastic element 36 and form a locking engagement with the latch 321; when the second push rod 333 pushes the hook part 312 to deflect the locking element 311, the fourth elastic element 36 is compressed or deformed, and the locking element 311 is driven to reset after the second push rod 333 is disengaged.

[0106] Furthermore, please refer to Figure 6 and Figure 7 As shown, the latch 321 has a first guide surface 323 on one side, and the locking member 311 has a second guide surface 313 that cooperates with the first guide surface 323. During the process of the hatch 32 switching from the open state to the closed state, the first guide surface 323 can push against the second guide surface 313, so that the locking member 311 overcomes the elastic force of the fourth elasticity and shifts to the unlocked position. After the hatch 32 is closed, the locking member 311 is reset to the locked position under the action of the fourth elasticity and locks with the latch 321.

[0107] The first guide surface 323 is formed on the latch 321 and moves together with the opening and closing of the hatch 32; the second guide surface 313 is formed on the locking element 311 and corresponds to the displacement path of the first guide surface 323. With the cooperation of the first guide surface 323 and the second guide surface 313, during the process of the hatch 32 switching from the open state to the closed state, the latch 321 does not need to be fully aligned before additional operation to release the interference. Instead, when approaching the locking element 311, the first guide surface 323 first applies a guiding and pushing action to the second guide surface 313, causing the locking element 311 to shift along the unlocking direction. With this configuration, the hatch 32 can automatically push the locking element 311 to temporarily move aside during the closing process, thus creating conditions for the latch 321 to continue entering the locking area, making the overall closing process smoother.

[0108] When the hatch 32 rotates in the closing direction, the first guide surface 323 moves toward the second guide surface 313 along with the latch 321. After they come into contact, the first guide surface 323 uses its own inclined surface or guide profile to push against the second guide surface 313, causing the locking element 311 to overcome the elastic force of the fourth elastic element 36 and shift to the unlocked position. It can be understood that the first guide surface 323 and the second guide surface 313 together form a self-guiding, self-yielding mating interface, so that the latch 321 does not need to directly and forcefully impact the locking element 311 during the closing process, but instead first pushes the locking element 311 away from the locked position through the relative sliding of the guide surfaces. This structure helps reduce closing resistance, reduces impact and wear between the latch 321 and the locking element 311, and also helps improve the smoothness of the hatch 32's closing action and its assembly tolerance adaptability.

[0109] Once the locking element 321 crosses the interference area of ​​the locking element 311 and enters the predetermined locking position, the pushing force of the first guide surface 323 on the second guide surface 313 gradually disappears. The locking element 311 loses its external offset force and can then return to the locked position under the action of the fourth elastic element 36, forming a locking constraint on the locking element 321. With this structural relationship, after the hatch 32 is closed, it can automatically return to the locked state without the user having to operate the locking element 311 separately again, improving ease of use.

[0110] In one exemplary embodiment, please refer to Figure 3 and Figure 6 As shown, the hatch 32 includes a hinged end 324 and a free end 325. The hinged end 324 is hinged to the dust chamber 31. The locking element 321 is provided at the free end 325. A fifth elastic element 37 is provided between the hinged end 324 and the dust chamber 31. The fifth elastic element 37 is used to provide an opening force to the hatch 32.

[0111] The locking element 321 is located at the free end 325, allowing the free end 325 to preferentially enter the locking area corresponding to the locking element 311 when the hatch 32 is closed, thereby establishing a locking engagement at a position away from the hinge end 324. Since the hinge end 324 itself is already rotatably connected to the dust chamber 31, the area where the hatch 32 truly needs to be constrained is mainly located in the region of the free end 325 opposite to the hinge end 324. After the locking element 321 is located at the free end 325, the locking engagement formed between the locking element 311 and the locking element 321 can directly restrict the free end 325 from moving in the opening direction, thereby effectively preventing the hatch 32 from flipping open on its own.

[0112] A fifth elastic element 37, which can be a torsion spring, is provided between the hinge end 324 and the dust chamber 31. The fifth elastic element 37 is positioned near the hinge axis of the hinge end 324, so that its direction of action is adapted to the rotation direction of the door 32. This allows it to apply an elastic torque in the opening direction to the door 32 when it rotates around the hinge end 324. With this configuration, the fifth elastic element 37 can be in an energy-storing state when the door 32 is closed, and after the locking relationship is released, it can release its elastic potential energy, pushing the door 32 to automatically rotate in the opening direction around the hinge end 324.

[0113] When the locking element 311 and the latching element 321 are locked together, the free end 325 is restricted. Although the hatch 32 is subjected to the opening force provided by the fifth elastic element 37, it remains closed. When the locking engagement between the locking element 311 and the latching element 321 is released, the free end 325 is unrestrained, and the fifth elastic element 37 can push the hatch 32 to rotate around the hinged end 324, thus switching the hatch 32 to the open state. Through the aforementioned structural arrangement, the hatch 32 can reliably remain closed in the locked state and can automatically flip open after the lock is released, thereby improving the convenience of the entire hatch opening action.

[0114] The technical solution disclosed herein will be further explained below in conjunction with specific application scenarios.

[0115] When the user needs to empty the dust in the dust chamber 31, the upper component 1 can be rotated clockwise or counterclockwise relative to the middle component 2 around the axis of the cleaning attachment 200. As the upper component 1 rotates, the drive surface 11 located at the bottom of the upper component 1 rotates synchronously. Since the drive surface 11 is inclined relative to the axis of the cleaning attachment 200, and there is a height difference between the two sides of the drive surface 11 in the axial direction, the contact position between the drive surface 11 and the first push rod 211 will change height during the rotation, thereby generating an axial pushing action on the first push rod 211. Under this pushing action, the first push rod 211 overcomes the restoring force provided by the first elastic element 23 and moves downward, thereby converting the rotational action of the upper component 1 into the axial displacement action of the first push rod 211.

[0116] As the first push rod 211 moves downward, its lower end further acts on the pushing part of the transmission rod 331, causing the transmission rod 331 to overcome the elastic force of the second elastic member 34 and move downward synchronously under the continuous pushing of the first push rod 211. Thus, the displacement output by the first push rod 211 is further transmitted downward to the second transmission member 33 of the lower section assembly 3. As the transmission rod 331 continues to move downward, its lower end contacts the second push rod 333, driving the second push rod 333 to move downward against the elastic force of the third elastic member 35.

[0117] Since the second push rod 333 is correspondingly arranged with the locking member 311, after the second push rod 333 moves down, it can apply an unlocking force to the hook portion 312 of the locking member 311, causing the hook portion 312 to gradually disengage from the slot portion 322, thereby releasing the locking engagement between the locking member 311 and the latch member 321. At this time, the locking member 311 switches from the original locked position to the unlocked position, the free end 325 of the hatch 32 loses its locking constraint, and the hatch 32 then automatically flips around the hinge end 324 under the opening elastic force provided by the fifth elastic member 37, thereby realizing the opening of the dust chamber 31 and facilitating the discharge of dust and debris from the dust chamber 31.

[0118] After the hatch 32 is opened, the entire mechanism can be reset under the action of the various elastic elements. Specifically, after the transmission rod 331 releases the continuous pressure, the second push rod 333 can return to its initial position under the action of the third elastic element 35 and exit the corresponding area of ​​the slot 322, thereby preventing the second push rod 333 from continuing to interfere with the subsequent action of the locking element 311. At the same time, after the continuous action of the second push rod 333 is lost, the locking element 311 can return to the locked position under the restoring force provided by the fourth elastic element 36, so that the locking element 311 is ready to form a locking engagement with the latching element 321 again.

[0119] After emptying the dust, the user can rotate the upper component 1 back to its initial position. As the upper component 1 returns to its original position, the pushing force of the driving surface 11 on the first push rod 211 is gradually released. Under the action of the first elastic element 23, the first push rod 211 returns to its original position and tends to maintain contact with the driving surface 11 again. The transmission rod 331 then returns to its initial position synchronously under the action of the second elastic element 34, so that the pushing part of the transmission rod 331 returns to its initial position.

[0120] Therefore, the first push rod 211, the transmission rod 331, the second push rod 333, and the locking member 311 can all be restored to the initial working condition suitable for the next trigger under the action of the corresponding elastic members, so that the entire cover opening mechanism forms a complete action cycle of trigger opening, automatic release, and automatic reset.

[0121] In summary, the cleaning accessories and cleaning equipment provided in this disclosure establish a top-to-bottom mechanical linkage opening path by setting an inclined driving surface on the upper component. When the upper component rotates relative to the middle component, the driving surface acts on the first transmission component, which in turn drives the second transmission component to trigger the opening of the lower component's door. When users need to empty the dust chamber, they do not need to open the door directly near the lower dust chamber. Instead, they only need to rotate the upper component, which is closer to the natural grip area, to open the lower door. This effectively improves the inconvenience caused by the low position of the dust chamber door in existing stick vacuum cleaners, requiring bending over or changing the holding posture to open the door. Furthermore, this solution achieves the action conversion between upper input and lower execution based on mechanical transmission, eliminating the need for electrical components such as motors, electromagnets, or sensors. The structure is simple, reliable, and low-cost.

[0122] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0123] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cleaning accessory for a cleaning device, characterized in that, include: The upper component is held by the user during the use of the cleaning device, and its bottom end is provided with a drive surface that is inclined relative to the axis of the cleaning attachment; The middle section assembly is rotatably connected to the upper section assembly and is provided with a movable first transmission member; The lower section assembly includes a dust chamber for dust collection, a door for opening and closing the dust chamber, and a second transmission component for triggering the door to open. When the upper section component rotates relative to the middle section component, the driving surface acts on the first transmission member, so that the first transmission member drives the second transmission member to trigger the opening of the hatch.

2. The cleaning accessory according to claim 1, characterized in that, The first transmission member includes a first push rod disposed near the side wall of the middle section assembly. The upper end of the first push rod abuts against the area of ​​the driving surface near the side edge, and the lower end of the first push rod contacts and engages with the second transmission member, so that the displacement of the first push rod can be transmitted to the second transmission member.

3. The cleaning accessory according to claim 2, characterized in that, The side wall of the middle section component is provided with a limiting groove for restricting the movement direction of the first push rod. The limiting groove extends along the axial direction of the cleaning attachment, and the first push rod is slidably disposed in the limiting groove along the axial direction of the cleaning attachment.

4. The cleaning accessory according to claim 2, characterized in that, A first elastic element is provided between the first push rod and the wall surface of the middle section assembly. The first elastic element is used to provide an elastic force that tends to keep the first push rod in contact with the drive surface.

5. The cleaning accessory according to claim 2, characterized in that, The second transmission component includes a transmission rod that can slide relative to the side wall of the lower section assembly. The transmission rod is positioned corresponding to the first push rod, such that the lower end of the first push rod can contact and engage with the upper end of the transmission rod.

6. The cleaning accessory according to claim 5, characterized in that, The upper end of the transmission rod is provided with an abutment portion for contacting and engaging with the lower end of the first push rod. A second elastic element is provided between the abutment portion and the wall surface of the lower section assembly. The second elastic element is used to provide an elastic force that makes the transmission rod tend to move closer to the lower end of the first push rod.

7. The cleaning accessory according to claim 5, characterized in that, The second transmission component further includes a second push rod slidably disposed on the hatch. The second push rod corresponds to the position of the transmission rod, such that the lower end of the transmission rod can contact and cooperate with the second push rod to drive the second push rod to trigger the opening operation of the hatch.

8. The cleaning accessory according to claim 7, characterized in that, The dust chamber is equipped with a locking element that can switch between an unlocked position and a locked position, and the door is equipped with a latch that engages with the locking element to lock; when the door is closed, the locking element can remain in the locked position and engage with the latch to keep the door closed.

9. The cleaning accessory according to claim 8, characterized in that, The second push rod can switch the locking member to the unlocked position under the drive of the transmission rod, so as to release the locking engagement between the locking member and the latch, and switch the hatch to the open state.

10. The cleaning accessory according to claim 9, characterized in that, The locking member is provided with a hook portion, and the latching member is provided with a groove portion for engaging with the hook portion; when the hatch is in the closed state and the locking member is in the locked position, the hook portion can engage with the groove portion to keep the hatch in the closed state.

11. The cleaning accessory according to claim 10, characterized in that, The lower end of the second push rod can contact and engage with the hook portion. Driven by the transmission rod, the second push rod can push against the hook portion, causing the hook portion to disengage from the slot portion.

12. The cleaning accessory according to claim 9, characterized in that, A third elastic element is provided between the second push rod and the hatch, the third elastic element being used to provide a spring force that tends to move the second push rod away from the locking member; a fourth elastic element is provided between the locking member and the dust chamber, the fourth elastic element being used to provide a spring force that tends to keep the locking member in the locked position.

13. The cleaning accessory according to claim 12, characterized in that, The latch is provided with a first guide surface on one side, and the locking member is provided with a second guide surface that cooperates with the first guide surface; during the process of the hatch switching from the open state to the closed state, the first guide surface can push against the second guide surface, so that the locking member overcomes the elastic force of the fourth elasticity and shifts to the unlocked position. After the hatch is closed, the locking member is reset to the locked position under the action of the fourth elastic element and engages with the latch.

14. The cleaning accessory according to claim 9, characterized in that, The hatch includes a hinged end and a free end. The hinged end is hinged to the dust chamber. The locking element is located at the free end. A fifth elastic element is provided between the hinged end and the dust chamber. The fifth elastic element is used to provide an opening force to the hatch.

15. A cleaning device, characterized in that, It includes a cleaning head and a cleaning accessory as described in any one of claims 1 to 14, wherein the cleaning head is connected to the cleaning accessory.

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