Box type dust collector

Abstract

The utility model discloses a box-type dust collector which solves the problem that locking and unlocking operations of a lock catch of an existing box-type dust collector are inconvenient. The box type dust collector comprises a dust collector shell, the dust collector shell comprises a dust collection box and a box cover, the box cover covers the dust collection box, one of the corresponding side walls of the dust collection box and the box cover is provided with a fixed lock table, and the other one of the corresponding side walls of the dust collection box and the box cover is provided with a movable lock catch. The movable lock catch comprises a rotary knob and a locking block, the rotary knob is rotated to drive the locking block and the fixed locking table to be screwed or separated, and in the screwing state, the locking block and the fixed locking table are mutually stopped in the height direction of the dust collector shell so as to screw the box cover.

Description

Technical Field

[0001] The utility model relates to the field of vacuum cleaners, in particular to a box-type vacuum cleaner. Background Art

[0002] The box-type vacuum cleaner comprises a head assembly and a dust box assembly. The dust box assembly is provided with an opening which is opened upwards. The head assembly comprises a box cover which is closed on the dust box assembly to close the opening.

[0003] In the prior art, the box cover is usually fastened and fixed to the dust box assembly in the form of a buckle. The buckle includes a locking platform and a locking hook. When fastening, the locking hook needs to be hung on the locking platform first, and then the tail end of the locking hook is pressed hard to fasten the locking hook and the locking platform.

[0004] When the box cover is closed on the dust box assembly and buckled, the lock hook needs to be aligned with the lock platform and hung on it before the two can be buckled; and when the box cover is opened from the dust box assembly, the lock hook needs to be removed from the lock platform after the buckle is separated before the box cover can be opened from the dust box assembly, which makes the locking and separation of the box cover inconvenient. Secondly, when locking or separating the box cover, it is necessary to press or pull the tail end of the lock hook hard, and the force application area of ​​the tail end of the lock hook is small, which makes the operator's fingers easily hurt. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and propose a box-type vacuum cleaner to solve the technical problems that the box cover of the box-type vacuum cleaner is inconvenient to close and remove and the use of a buckle causes hand pain when locking or separating.

[0006] In order to achieve the above-mentioned technical objectives, the utility model proposes a box-type vacuum cleaner, including a vacuum cleaner shell, the vacuum cleaner shell including a dust box and a box cover, the box cover is closed on the dust box, one of the side walls of the dust box and the box cover corresponding to each other is provided with a fixed locking platform, and the other is provided with a movable lock buckle, the movable lock buckle includes a knob and a locking block, rotating the knob drives the locking block to rotate or separate from the fixed locking platform, and in the rotated state, the locking block and the fixed locking platform stop each other in the height direction of the vacuum cleaner shell to rotate the box cover.

[0007] Preferably, the locking block is provided with a stop surface, and the fixed locking platform is provided with a mating surface. In the engaged state and / or separated state, the stop surface abuts against the mating surface to stop the movable lock buckle from rotating in one direction, so that the rotation directions of the movable lock buckle are different when engaged and separated.

[0008] Preferably, the anti-rotation surface includes a first anti-rotation surface provided at one end of the locking block and / or a second anti-rotation surface provided at the other end, and the matching surface includes a first matching surface provided at one side of the fixed locking platform and the locking block stopper and / or a second matching surface provided at the side of the fixed locking platform.

[0009] When the movable lock buckle rotates from the separated state to the screwed state, the first anti-rotation surface and the first matching surface gradually approach each other. In the screwed state, when the movable lock buckle continues to rotate in the screwed direction, the first anti-rotation surface and the first matching surface abut against each other to prevent rotation in one direction.

[0010] and / or,

[0011] When the movable lock buckle rotates from the screwed state to the separated state, the second anti-rotation surface and the second matching surface gradually approach each other. In the separated state, when the movable lock buckle continues to rotate in the separation direction, the second anti-rotation surface and the second matching surface abut against each other to prevent one-way rotation.

[0012] Preferably, one of the side walls corresponding to the dust box and the box cover is provided with a fixed locking platform, and the other is provided with a matching locking platform, the locking block is provided with a stop surface, and the fixed locking platform and / or the matching locking platform are provided with a matching surface, and in the screwed state and / or the separated state, the stop surface abuts against the matching surface to stop the movable lock buckle from rotating in one direction, so that the rotation directions of the movable lock buckle are different when screwed and separated.

[0013] Preferably, the anti-rotation surface includes a first anti-rotation surface provided at one end of the locking block and / or a second anti-rotation surface provided at the other end, and the matching surface includes a first matching surface provided at the fixed locking platform and / or the matching locking platform and / or a second matching surface provided at the side of the fixed locking platform and / or the matching locking platform.

[0014] When the movable lock buckle rotates from the separated state to the screwed state, the first anti-rotation surface and the first matching surface gradually approach each other. In the screwed state, when the movable lock buckle continues to rotate in the screwed direction, the first anti-rotation surface and the first matching surface abut against each other to prevent rotation in one direction.

[0015] and / or,

[0016] When the movable lock buckle rotates from the screwed state to the separated state, the second anti-rotation surface and the second matching surface gradually approach each other. In the separated state, when the movable lock buckle continues to rotate in the separation direction, the second anti-rotation surface and the second matching surface abut against each other to prevent one-way rotation.

[0017] Preferably, a limiting rib is provided on at least one of the side walls corresponding to each other of the dust box and the box cover, and a limiting strip is provided on the movable lock buckle. At one position when the movable lock buckle rotates from the screwed state to the separated state, the limiting rib abuts against one end of the limiting strip, and in the separated state, the limiting rib is close to the other end of the limiting strip.

[0018] Preferably, a positioning rib is convexly provided on the fixed locking platform, and the positioning rib abuts against the locking block in the screwed state.

[0019] Preferably, the fixed locking platform and / or the matching locking platform are provided with positioning ribs, and the positioning ribs abut against the locking block in the screwed state.

[0020] Preferably, a positioning groove is provided on the locking block, and in the screwed state, at least a portion of the positioning rib is engaged in the positioning groove.

[0021] Preferably, the locking block comprises a first locking block protruding from one side of the knob and a second locking block protruding from the opposite side, and the anti-rotation surface is provided on the first locking block and / or the second locking block.

[0022] Preferably, a locking groove is formed between the first locking block, the second locking block and the knob, at least part of the fixed locking platform and at least part of the mating locking platform are received in the locking groove, the first locking block has a first boss portion protruding toward the second locking block, and the second locking block has a second boss portion protruding toward the first locking block, the anti-rotation surface is arranged on the side of the first boss portion and / or the second boss portion facing the rotating shaft, and the positioning rib abuts against the groove wall of the locking groove.

[0023] After adopting the above technical solution, the utility model has the following beneficial effects.

[0024] 1. The utility model proposes a box-type vacuum cleaner, in which one of the side walls of the dust box and the box cover corresponding to each other is provided with a fixed locking platform, and the other is provided with a movable lock buckle, the movable lock buckle includes a rotating and locking block, the knob drives the locking block to rotate or separate with the fixed locking platform, and in the rotating state, the locking block and the fixed locking platform stop each other in the height direction of the vacuum cleaner shell to rotate the box cover. Compared with the traditional lock structure of a lock platform and a lock hook, the lock structure of the box-type vacuum cleaner of this embodiment does not need to hang the lock hook on the lock platform when screwing the box cover. The box cover can be screwed on by simply closing the box cover and then rotating the movable lock buckle. When separating the box cover, the box cover and the dust box can be separated by simply rotating the movable lock buckle, and the box cover can be opened from the top of the dust box without removing the lock hook from the lock platform, which makes the operation simpler for the operator. At the same time, compared with the press-and-screw method of the traditional lock structure, the rotation of the knob of the movable lock buckle is easier to apply force, which makes it easier for the operator to lock and separate the box cover, and avoids finger pain caused by the operator's operation.

[0025] 2. The locking block is provided with a stop surface, and the fixed lock platform is provided with a matching surface. In the screwed state and / or the separated state, the stop surface abuts against the matching surface to stop the movable lock buckle in one direction, so that the rotation direction of the movable lock buckle in screwing and separating is different. The rotation method of the movable lock buckle in screwing and separating is similar to the method of turning on and off the faucet, switch knob, etc. by rotating in daily work. By using the mutual cooperation of the stop surface and the matching surface, the rotation direction of the movable lock buckle in screwing and separating is different. The rotation direction of the movable lock buckle in screwing and separating can be set to be the same as or opposite to the rotation direction of the faucet, switch knob, etc. in opening and closing. The operation logic of the movable lock buckle can be more easily understood and remembered by the operator, thereby reducing the probability of operator misoperation. At the same time, when the movable lock buckle is one-way stopped in the screwed state and the separated state, the screwing and separation of the movable lock buckle are limited to a smaller range, so that the segment sense of the screwing and separation operation is also clearer, and the operator can also know more clearly whether to screw or separate, thereby further reducing the probability of the movable lock buckle being in an incorrect state.

[0026] 3. The anti-rotation surface includes a first anti-rotation surface and / or a second anti-rotation surface, and the mating surface includes a first mating surface and / or a second mating surface; the first anti-rotation surface cooperates with the first mating surface to achieve one-way anti-rotation in the screwed state; and / or the second anti-rotation surface cooperates with the second mating surface to achieve one-way anti-rotation in the separated state. With such a configuration, the anti-rotation structure between the lock platform and the movable lock buckle is relatively simple and has low production cost.

[0027] 4. One of the side walls of the dust box and the box cover corresponding to each other is provided with a fixed locking platform, and the other is provided with a matching locking platform. The locking block is provided with a rotation-stopping surface, and the fixed locking platform and / or the matching locking platform are provided with a matching surface. In the screwed state and / or the separated state, the rotation-stopping surface abuts against the matching surface to one-way stop the movable lock buckle, so that the rotation directions of the screwing and separation of the movable lock buckle are different. The rotation method of screwing and separating the movable lock buckle is similar to the method of turning the faucet on and off by rotating in daily work. By using the mutual cooperation of the rotation-stopping surface and the matching surface, the rotation directions of the screwing and separation of the movable lock buckle are different. The rotation direction of the screwing and separation of the movable lock buckle can be set to be the same as or opposite to the rotation direction of opening and closing the faucet. The operation logic of the movable lock buckle can be more easily understood and remembered by the operator, thereby reducing the probability of operator misoperation. At the same time, when the active lock buckle is unidirectionally stopped in the engaged state and the disengaged state, the engagement and disengagement of the active lock buckle are limited to a smaller range, so that the segment sense of the engagement and disengagement operation is clearer, and the operator can also know more clearly whether to engage or disengage, thereby further reducing the probability of the active lock buckle being in an incorrect state.

[0028] 5. The outer side of the side wall of the dust box and / or the box cover is provided with a limiting rib, and the movable lock buckle is provided with a limiting strip. The limiting rib abuts against one end of the limiting strip at one position when the movable lock buckle rotates from the screwed state to the separated state, and the limiting rib is close to the other end of the limiting strip in the separated state. With such a configuration, when the operator rotates the movable lock buckle for separation, the interference between the limiting rib and the limiting strip allows the movable lock buckle to give the operator a clear hand feeling, and the operator can clearly know that the movable lock buckle is in the separated state; at the same time, the interference between the limiting rib and the limiting strip makes it difficult for the state of the movable lock buckle in the separated state to change, thereby further reducing or avoiding the movable lock buckle being in the wrong position state.

[0029] 6. The positioning ribs protruding from the fixed lock platform abut against the locking block in the screwed state. With this arrangement, the movable lock buckle can be positioned in the screwed state, so that the operator can clearly know that the box cover and the dust box are screwed together, the operation logic of the movable lock buckle is clearer, and the possibility of the movable lock buckle being in the wrong screwed state is reduced or avoided.

[0030] 7. The locking block is also provided with a positioning groove, and in the screwed state, at least part of the positioning rib is matched in the positioning groove. With this arrangement, the movable lock buckle can be more accurately positioned in the screwed state, and the change of its state due to accidental touching of the movable lock buckle can be avoided; at the same time, when the operator rotates the movable lock buckle, the relative movement of the positioning rib and the positioning groove will provide clear feedback to the operator through the movable lock buckle, and the operator can clearly know whether the positioning rib has been matched in the positioning groove, thereby further reducing or avoiding the possibility that the movable lock buckle is in the wrong screwed state.

[0031] 8. The locking block includes a first locking block provided on one side of the knob and a second locking block provided on the opposite side. With such a configuration, when the movable lock is in the separated state, the first locking block and the second locking block are respectively located on the left and right sides of the fixed lock platform, so that the weight of both sides of the movable lock in the separated state is balanced, and the movable lock in the separated state is more balanced, so that it can be kept in the separated state more stably.

[0032] 9. A lock groove is formed between the first locking block, the second locking block and the knob, at least part of the fixed lock platform and at least part of the matching lock platform are received in the lock groove, the first locking block has a first boss portion protruding toward the rotating shaft, the second locking block has a second boss portion protruding toward the rotating shaft, the anti-rotation surface is arranged on the side of the first boss portion and / or the second boss portion facing the rotating shaft, and the positioning rib abuts against the groove wall of the lock groove. In this way, the anti-rotation and positioning of the active rotation can be achieved through different parts of the active lock buckle, which can increase the service life of the active lock buckle and avoid frequent force on one side of the active lock buckle.

[0033] These features and advantages of the present invention will be disclosed in detail in the following specific implementation manners and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of a box-type vacuum cleaner in Embodiment 1 of the present utility model;

[0035] Figure 2 Exploded views of the box-type vacuum cleaners in Embodiments 1 and 4 of the present utility model;

[0036] Figure 3 for Figure 1 Schematic diagram of the locking state of the lock assembly at A in the middle;

[0037] Figure 4 for Figure 1 Schematic diagram of the lock assembly at A in the middle in a separated state;

[0038] Figure 5 for Figure 1 Schematic diagram of the fixed lock and matching lock and limit ribs at A in the middle;

[0039] Figure 6 It is a schematic diagram of the movable lock in the first and fourth embodiments of the present utility model;

[0040] Figure 7 It is a schematic diagram of the locking assembly in the screwed-in state in the second embodiment of the present utility model;

[0041] Figure 8 This is a schematic diagram of the lock assembly in the separated state in the second embodiment of the present utility model;

[0042] Fig. 9 This is a schematic diagram of the positioning structure of the lock assembly in the third embodiment of the present utility model;

[0043] Fig.10 This is a schematic diagram of another positioning structure of the lock assembly in the third embodiment of the present utility model;

[0044] Fig.11 It is another schematic diagram of the locking assembly in the fifth embodiment of the present utility model in the screwed-in state;

[0045] Fig.12 It is a schematic diagram of another locking assembly in the separated state in the fifth embodiment of the utility model;

[0046] Fig.13 It is another schematic diagram of the locking assembly in the fifth embodiment of the present utility model in the screwed-in state;

[0047] Fig.14 It is a schematic diagram of another locking assembly in the separated state in the fifth embodiment of the utility model;

[0048] Fig.15 It is another schematic diagram of the locking assembly in the sixth embodiment of the present utility model in the screwed-in state;

[0049] Fig.16 It is a schematic diagram of another locking assembly in the separated state in the sixth embodiment of the utility model;

[0050] Fig.17 It is a cross-sectional schematic diagram of the lock assembly in the seventh embodiment of the present utility model;

[0051] Reference numerals:

[0052] 100, box cover, 110, upper cover, 120, bottom cover, 130, air inlet, 140, air outlet, 150, limiting ribs;

[0053] 200, dust box;

[0054] 300, lock assembly, 310, fixed lock platform, 311, first matching surface, 312, positioning rib, 320, matching lock platform, 321, second matching surface, 330, movable lock, 331, knob, 332, locking block, 3321, first locking block, 3322, second locking block, 3323, first boss portion, 3324, second boss portion, 333, first anti-rotation surface, 334, second anti-rotation surface, 335, positioning groove, 336, limit strip, 340, rotating shaft;

[0055] 400. Filtering device;

[0056] 500. Fan. DETAILED DESCRIPTION

[0057] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0058] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0059] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" and "several" mean two or more, unless otherwise clearly defined.

[0060] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0062] Embodiment 1:

[0063] like Figures 1 to 6As shown, a box-type vacuum cleaner proposed in an embodiment of the utility model includes a vacuum cleaner housing, a fan 500 and a filter device 400, and the vacuum cleaner housing includes a box cover 1000 and a dust box 200. Among them, the box cover 100 includes an upper cover 110 and a bottom cover 120, and a cavity is defined between the upper cover 110 and the bottom cover 120, and the fan 500 is accommodated in the cavity. An air inlet 130 and an air outlet 140 are provided on the box cover 100, and the air outlet side of the fan 500 is connected to the air outlet 140, and the filter device 400 is installed below the box cover 100 and connected to the air inlet side of the fan 500. The dust box assembly includes a dust box 200 and a dust bag (not shown), and a accommodating cavity with an open upper end is defined in the dust box 200, and the box cover 100 is provided on the dust box 200 to close the opening of the accommodating cavity. When the box cover 100 is closed, the dust bag and at least part of the filter device 400 are stored in the accommodating cavity, one end of the air inlet 130 is connected to the outside of the box-type vacuum cleaner, and the other end is open to the inside of the dust box 200 and the dust bag is sleeved thereon. The fan 500 is running to form a negative pressure in the dust box 200, and the external air is sucked in through the air inlet 130 and enters the dust bag. The dust bag filters the large particles of dust in the air, and the air is discharged through the gaps in the dust bag and flows to the filter device 400. After the remaining small particles of dust are filtered by the filter device 400, the air passes through the air inlet side and the air outlet side of the fan 500 and is discharged from the air outlet 140. A suction nozzle can be installed on the air inlet 130, and the operator operates the suction nozzle to vacuum.

[0064] In some other embodiments, the fan 500 can also be arranged in the accommodating cavity of the dust box 200, the box cover 100 is provided with an air inlet 130, the dust box 200 is provided with an air outlet 140, the dust bag is arranged on the air inlet 130, the filter device 400 is installed on the air inlet side of the fan 500, and the air outlet side of the fan 500 is connected to the air outlet 140.

[0065] Among them, a sealing strip is provided on the circumference of the box cover 100, and the box cover 100 is covered on the dust box 200. The sealing strip and the box wall of the dust box 200 are pressed and sealed, thereby preventing external air from entering the dust box 200 through the gap between the two during dust collection and weakening the suction force of the air inlet 130.

[0066] It is understandable that a sealing strip may also be provided on the dust collecting box 200, and the cover wall of the box cover 100 and the sealing strip are pressed and sealed.

[0067] In one embodiment, the box-type vacuum cleaner further includes a lock assembly 300, which includes a fixed lock platform 310 disposed on the outer side of the side wall of the dust box 200 and a movable lock 330 disposed on the box cover 100, and the movable lock 330 includes a knob 331 and a locking block 332, and the locking block 332 is driven by rotating the knob 331 to rotate or separate from the fixed lock platform 310. In the screwed state, the locking block 332 and the fixed lock platform 310 stop each other in the height direction of the vacuum cleaner housing to screw the box cover 100, thereby limiting the box cover 100 from opening from the dust box 200. Among them, the locking block 332 protrudes from the side of the knob 331 toward the fixed lock platform 310, and the box cover 100 is provided with a rotating shaft 340, and the knob 331 is provided with a through hole, and the through hole is sleeved on the rotating shaft 340 so that the movable lock 330 is rotatably installed on the box cover 100. In the screwed state, the locking block 332 stops at the lower end of the fixed locking platform 310. In the separated state, the locking block 332 and the fixed locking platform 310 release each other, so that the box cover 100 can be opened on the dust box 200, and the operator can clean the dust bag, the dust box 200 and the filter device 400.

[0068] In some other embodiments, a fixed locking platform 310 may be provided on the side wall of the box cover 100, and a movable lock buckle 330 may be provided on the dust box 200. The movable lock buckle 330 is rotatably installed on the dust box 200 through a rotating shaft 340. The movable lock buckle 330 rotates to be in a screwed state or a separated state. In the screwed state, the locking block 332 stops above the fixed locking platform 310, thereby limiting the box cover 100 from opening from the dust box 200.

[0069] In some other embodiments, the rotating shaft 340 can also be a rotating shaft portion arranged on the movable lock buckle 330, and a positioning hole matching the rotating shaft portion is provided on the dust box 200 or the box cover 100, so that the movable lock buckle 330 can be rotatably installed on the dust box 200 or the box cover 100 through the rotating shaft 340.

[0070] Compared with the traditional lock structure of a lock platform and a lock hook, the lock structure of the box-type vacuum cleaner of this embodiment does not need to hang the lock hook on the lock platform when screwing the box cover 100. It is only necessary to close the box cover 100 and then rotate the movable lock buckle 330 to complete the screwing of the box cover 100; when separating the box cover 100, it is only necessary to rotate the movable lock buckle 330, and the box cover 100 and the dust box 200 can be separated. The box cover 100 can be opened from the top of the dust box 200 without removing the lock hook from the lock platform, which makes the operation of the operator simpler; at the same time, compared with the press-and-screw method of the traditional lock structure, the rotation of the knob 331 of the movable lock buckle 330 is easier to apply force, which makes it easier for the operator to lock and separate the box cover 100, and avoids finger pain caused by the operator's operation.

[0071] It is understandable that the lock assembly 300 can be provided on both sides of the box vacuum cleaner, and the box cover 100 is locked on the dust box 200 by screwing the lock assembly 300 on both sides successively, and the lock assembly 300 on both sides is separated successively so that the box cover 100 can be opened and removed on the dust box 200. The lock assembly 300 can also be provided on one side of the box vacuum cleaner, and the box cover 100 and the dust box 200 on the other side of the box vacuum cleaner are connected by a pin structure, so that the box cover 100 can rotate around the pin so that the box cover 100 can be opened upward relative to the dust box 200, and the operator can remove the dust bag and remove the filter device 400 for cleaning.

[0072] Embodiment 2:

[0073] Based on Example 1, in this embodiment, in order to achieve different rotation directions for the engagement and separation of the movable lock buckle 330, a stop surface is provided on the locking block 332, and a mating surface is provided on the fixed lock platform 310. In the engaged state and / or the separated state, the stop surface abuts against the mating surface to stop the movable lock buckle 330 from rotating in one direction, so that the engagement and separation rotation directions of the movable lock buckle 330 are different.

[0074] The rotational method of the active lock 330 for engagement and separation is similar to the method of turning on and off the faucet, switch knob, etc. by rotating in daily work. By using the mutual cooperation of the anti-rotation surface and the matching surface, the rotational directions of the engagement and separation of the active lock 330 are different. The rotational direction of the engagement and separation of the active lock 330 can be set to be the same as or opposite to the rotational direction of the opening and closing of the faucet and the switch knob. The operation logic of the active lock 330 can be more easily understood and remembered by the operator, thereby reducing the probability of operator misoperation. At the same time, when the active lock 330 is one-way anti-rotation in the engaged state and the separated state, the engagement and separation of the active lock 330 are limited to a smaller range, so that the segment sense of the engagement and separation operation is clearer, and the operator can also know more clearly whether to engage or separate, thereby further reducing the probability of the active lock 330 being in an incorrect state.

[0075] In one embodiment, Figure 7 As shown, the anti-rotation surface includes a first anti-rotation surface 333 provided on the locking block 332, and the matching surface includes a first matching surface 311 provided on the fixed locking platform 310. The first anti-rotation surface 333 is located on the surface of the locking block 332 facing the fixed locking platform 310, and the first matching surface 311 is located on the lower end surface of the fixed locking platform 310. When the movable lock buckle 330 rotates from the separated state to the screwed state, the first anti-rotation surface 333 and the first matching surface 311 gradually approach each other. In the screwed state, a certain gap is maintained between the first anti-rotation surface 333 and the first matching surface 311. When the movable lock buckle 330 continues to rotate a certain angle in the screwed direction, the first anti-rotation surface 333 and the first matching surface 311 abut against each other to achieve one-way anti-rotation.

[0076] It is understandable that, in the screwed state, the first anti-rotation surface 333 and the first mating surface 311 may also just abut against each other, so that when the movable lock 330 continues to rotate along the screwed direction, the first anti-rotation surface 333 and the first mating surface 311 are unidirectionally stopped.

[0077] Specifically, the minimum distance between the first mating surface 311 and the rotating shaft 340 is D1, the maximum distance between the first mating surface 311 and the rotating shaft 340 is D2, the minimum distance between the first anti-rotation surface 333 and the rotating shaft 340 is D3, and D2>D3>D1. In the screwed state, when the movable lock 330 continues to rotate in the screwed direction, the first anti-rotation surface 333 and the first mating surface 311 are abutted to prevent rotation in one direction.

[0078] With such arrangement, when the movable lock buckle 330 continues to rotate in the screwing direction, the first anti-rotation surface 333 abuts against the first mating surface 311, thereby realizing the one-way anti-rotation of the movable lock buckle 330 by the fixed lock platform 310 in the screwing state. The one-way anti-rotation structure of the fixed lock platform 310 and the movable lock buckle 330 is relatively simple and the production cost is relatively low.

[0079] In another embodiment, Figure 8 As shown, the anti-rotation surface includes a second anti-rotation surface 334 provided on the locking block 332, and the matching surface includes a second matching surface 321 provided on the fixed locking platform 310. The second anti-rotation surface 334 is located on the surface of the locking block 332 facing the fixed locking platform 310, and the second matching surface 321 is provided on the side of the fixed locking platform 310. When the movable lock buckle 330 rotates from the screwed state to the separated state, the second anti-rotation surface 334 and the second matching surface 321 gradually approach each other. In the separated state, a certain gap is maintained between the second anti-rotation surface 334 and the second matching surface 321. When the movable lock buckle 330 continues to rotate a certain angle in the screwed direction, the second anti-rotation surface 334 and the second matching surface 321 abut against each other to achieve one-way anti-rotation.

[0080] It is understandable that, in the separated state, the second anti-rotation surface 334 and the second mating surface 321 may also just abut against each other, so that when the movable lock 330 continues to rotate along the screwing direction, the second anti-rotation surface 334 and the second mating surface 321 are prevented from rotating in one direction.

[0081] Specifically, the minimum distance between the second mating surface 321 and the rotating shaft 340 is L1, the maximum distance between the second mating surface 321 and the rotating shaft 340 is L2, the minimum distance between the second anti-rotation surface 334 and the rotating shaft 340 is L3, and L2>L3>L1. In the separated state, when the movable lock buckle 330 continues to rotate in the separation direction, the second anti-rotation surface 334 and the second mating surface 321 are abutted to prevent rotation in one direction.

[0082] With such arrangement, when the movable lock buckle 330 continues to rotate in the separation direction, the second anti-rotation surface 334 abuts against the second mating surface 321, thereby realizing one-way anti-rotation of the movable lock buckle 330 by the fixed lock platform 310 in the separated state. The anti-rotation structure of the fixed lock platform 310 and the movable lock buckle 330 is relatively simple and the production cost is relatively low.

[0083] It can be understood that in order to limit the rotational range of the movable lock buckle 330 to a smaller angle, a first stop surface 333 and a second stop surface 334 can be configured on the fixed locking platform 310, and a first mating surface 311 and a second stop surface 334 can be configured on the locking block 332, so that the movable lock buckle 330 can be unidirectionally stopped in the rotational direction of engagement and separation, thereby limiting the range of movement of the movable lock buckle 330 to a smaller range.

[0084] For other contents not described in this embodiment, reference may be made to the above embodiments.

[0085] Embodiment three:

[0086] like Fig. 9 As shown, based on the first and second embodiments, in this embodiment, in order to position the active lock buckle 330 in the screwed state, the lock buckle assembly 300 further includes a positioning structure, the positioning structure includes a positioning rib 312 convexly arranged on the fixed lock platform 310, and the positioning rib 312 abuts against the locking block 332 in the screwed state. With such a configuration, the active lock buckle 330 can be positioned in the screwed state, so that the operator can clearly know that the box cover 100 and the dust box 200 have been screwed together, the operation logic of the active lock buckle 330 is clearer, and the possibility of the active lock buckle 330 being in an incorrect screwed state is reduced or avoided.

[0087] In this embodiment, preferably, the locking block 332 is further provided with a positioning groove 335, and in the screwed state, at least part of the positioning rib 312 is matched in the positioning groove 335. In this way, the movable lock buckle 330 can be more accurately positioned in the screwed state, and the change of its state caused by accidentally touching the movable lock buckle 330 can be avoided; at the same time, when the operator rotates the movable lock buckle 330, the relative movement of the positioning rib 312 and the positioning groove 335 will provide clear feedback to the operator through the movable lock buckle 330, and the operator can clearly know whether the positioning rib 312 has been matched in the positioning groove 335, thereby further reducing or avoiding the possibility that the movable lock buckle 330 is in an erroneous screwed state.

[0088] For other contents not described in this embodiment, reference may be made to the above embodiments.

[0089] Embodiment 4:

[0090] like Figures 2 to 6As shown, based on embodiments one, two and three, in this embodiment, in order to limit the movable lock buckle 330 in the separated state, the screw-on assembly also includes a limiting structure, the limiting structure includes a limiting rib 150 protruding from the outer side of the side wall of the dust box 200 and a limiting strip 336 provided on the movable lock buckle 330, and the limiting rib 150 abuts against one end of the limiting strip 336 when the movable lock buckle 330 rotates from the screw-on state to the separated state. In the separated state, the limiting rib 150 is close to the other end of the limiting strip 336.

[0091] In some other embodiments, the limiting rib 150 may also be protruded from the outer side of the side wall of the box cover 100 .

[0092] Specifically, when the operator separates the movable lock buckle 330, the movable lock buckle 330 rotates from the screwed state to the separated state. At a position of the rotation path, the limiting rib 150 abuts against one end of the limiting strip 336, and the limiting rib 150 and the limiting strip 336 are in interference. The operator needs to rotate the movable lock buckle 330 with force, and the limiting strip 336 squeezes the limiting rib 150 so that the dust box 200 or the box cover 100 is slightly deformed locally to press the limiting rib 150 away from the limiting strip 336. After the limiting rib 150 slides over the limiting strip 336, the dust box 200 or the box cover 100 is partially reset. At this time, the movable lock buckle 330 is in the separated state, or the movable lock buckle 330 can continue to rotate a certain angle and then be in the separated state, at which time the limiting rib 150 is close to the other end of the limiting strip 336. The movable lock buckle 330 will not leave the separated state when no large force is applied, so the limiting rib 150 limits the movable lock buckle 330 in the separated state.

[0093] With such arrangement, when the operator rotates the movable lock buckle 330 for separation, the interference between the limiting rib 150 and the limiting strip 336 makes the movable lock buckle 330 provide clear feedback of the hand feeling to the operator, and the operator can clearly know that the movable lock buckle 330 is in a separated state; at the same time, the interference between the limiting rib 150 and the limiting strip 336 makes it difficult for the state of the movable lock buckle 330 in the separated state to change, thereby further reducing or avoiding the movable lock buckle 330 being in an incorrect position state.

[0094] For other contents not described in this embodiment, reference may be made to the above embodiments.

[0095] Embodiment five:

[0096] Based on embodiments 1 to 4, Figures 11 to 14 As shown, different from the first to fourth embodiments, in this embodiment, the lock assembly 300 includes a fixed lock platform 310 provided on the dust box 200, a matching lock platform 320 provided on the box cover 100, and a movable lock 330. The matching lock platform 320 unidirectionally stops the movable lock 330 from rotating in at least one rotation direction of the movable lock 300.

[0097] It can be understood that the cooperating locking platform 320 can also stop the movable lock buckle 330 from rotating in one direction in both the rotational directions of the movable lock buckle 330 being engaged and separated; the cooperating locking platform 320 can also cooperate with the fixed locking platform 310, so as to stop the movable lock buckle 330 from rotating in one direction in both the rotational directions of the movable lock buckle 330 being engaged and separated; the fixed locking platform 310 can also cooperate with the cooperating locking platform 320 to jointly stop the movable lock buckle 330 from rotating in one direction in at least one rotational direction of the movable lock buckle 330, thereby providing double protection for the one-way stopping of the movable lock buckle 330.

[0098] A stop surface is provided on the locking block 332, and a matching surface is provided on the matching lock platform 320. In the screwed state and / or separated state, the stop surface and the matching surface cooperate with the one-way stop rotation movable lock buckle 330, so that the rotation directions of the screwed and separated movable lock buckle 330 are different.

[0099] In one embodiment, Fig.11 , Fig.12 As shown, the anti-rotation surface includes a first anti-rotation surface 333 provided on the locking block 332, and the matching surface includes a first matching surface 311 provided on the matching locking platform 320. The first anti-rotation surface 333 is located on the surface of the locking block 332 facing the matching locking platform 320, and the first matching surface 311 is located on the lower end surface of the matching locking platform 320. When the movable lock buckle 330 rotates from the separated state to the screwed state, the first anti-rotation surface 333 and the first matching surface 311 gradually approach each other. In the screwed state, a certain gap is maintained between the first anti-rotation surface 333 and the first matching surface 311. After the movable lock buckle 330 continues to rotate a certain angle in the screwed direction, the first anti-rotation surface 333 and the first matching surface 311 abut against each other to achieve one-way anti-rotation. It can be understood that in the screwed state, the first anti-rotation surface 333 and the first matching surface 311 can also just abut against each other.

[0100] In one embodiment, Fig.11 , Fig.12 As shown, the anti-rotation surface includes a second anti-rotation surface 334 provided on the locking block 332, and the matching surface includes a second matching surface 321 provided on the matching lock platform 320. The second anti-rotation surface 334 is located on the surface of the locking block 332 facing the matching lock platform 320, and the second matching surface 321 is provided on the side of the matching lock platform 320. When the movable lock buckle 330 rotates from the screwed state to the separated state, the second anti-rotation surface 334 and the second matching surface 321 gradually approach each other. In the separated state, a certain gap is maintained between the second anti-rotation surface 334 and the second matching surface 321. When the movable lock buckle 330 continues to rotate a certain angle along the screwed direction, the second anti-rotation surface 334 and the second matching surface 321 abut against each other to achieve one-way anti-rotation. It can be understood that in the separated state, the second anti-rotation surface 334 and the second matching surface 321 can also just abut against each other.

[0101] In some other embodiments, such as Fig.13 , Fig.14 As shown, the first mating surface 311 and the second mating surface 321 can also be respectively arranged on the fixed locking platform 310 and the mating locking platform 320, the first anti-rotation surface 333 is arranged with the first mating surface 311, and the second anti-rotation surface 334 is arranged with the second mating surface 321, and the fixed locking platform and the mating locking platform jointly realize anti-rotation.

[0102] For other contents not described in this embodiment, reference may be made to the above embodiments.

[0103] Embodiment six:

[0104] like Fig.10 As shown, based on the first to fifth embodiments, the difference from the first to fifth embodiments is that in this embodiment, the lock assembly 300 includes a fixed lock platform 310 provided on the dust box 200, a matching lock platform 320 provided on the box cover 100, and a movable lock 330 rotatably provided on the box cover 100. Among them, the matching lock platform 320 is used to position the movable lock 330, and the fixed lock platform 310 is used to cooperate with the locking block 332 in the screwed state to limit the opening of the box cover 100 relative to the dust box 200.

[0105] It is understandable that the fixed locking platform 310 can also be used together with the matching locking platform 320 to position the movable lock buckle 330, thereby providing double protection for the positioning of the movable lock buckle 330.

[0106] The lock assembly 300 also includes a positioning structure, which includes a positioning rib 312 provided on the matching lock platform 320. The positioning rib 312 protrudes in a direction away from the rotating shaft 340. In the screwed state, the positioning rib 312 abuts against the locking block 332.

[0107] Preferably, in this embodiment, a positioning groove 335 is further provided on the locking block 332 , and in the screwed state, at least a portion of the positioning rib 312 is engaged in the positioning groove 335 .

[0108] For other contents not described in this embodiment, reference may be made to the above embodiments.

[0109] Embodiment seven:

[0110] Based on the first to sixth embodiments, in this embodiment, the locking block 332 includes a first locking block 3321 disposed on one side of the knob 331 and a second locking block 3322 disposed on the opposite side. With such a configuration, when the movable lock buckle 330 is in the separated state, the first locking block 3321 and the second locking block 3322 are respectively located on the left and right sides of the fixed lock platform 310, so that the weight of both sides of the movable lock buckle 330 in the separated state is balanced, and the movable lock buckle 330 in the separated state is more balanced, so that it can be more stably maintained in the separated state.

[0111] At the same time, the locking assembly includes a fixed locking platform 310 arranged on the outside of the dust box 200, a matching locking platform 320 arranged on the outside of the box cover 100, and a movable locking platform 330 arranged on the box cover 100. The fixed locking platform 310 and the matching locking platform 320 can respectively cooperate with the first locking block 3321 and the second locking block 3322 to respectively achieve rotation prevention and positioning, thereby simplifying the structure of the fixed locking platform 310 and the matching locking platform 320.

[0112] It is understandable that the fixed locking platform 310 can also be arranged on the box cover, and the matching locking platform 320 can also be arranged on the dust collection box.

[0113] In one embodiment, Fig.15 , Fig.16 As shown, the anti-rotation surface includes a first anti-rotation surface 333 provided on the second locking block 3322, and the matching surface includes a first matching surface 311 provided on the matching lock platform 320. The first anti-rotation surface 333 is located on the surface of the second locking block 3322 facing the matching lock platform 320, and the first matching surface 311 is located on the upper end surface of the matching lock platform 320. When the movable lock buckle 330 rotates from the separated state to the screwed state, the first anti-rotation surface 333 and the first matching surface 311 gradually approach each other. In the screwed state, a certain gap is maintained between the first anti-rotation surface 333 and the first matching surface 311. When the movable lock buckle 330 continues to rotate a certain angle in the screwed direction, the first anti-rotation surface 333 and the first matching surface 311 abut against each other to achieve one-way anti-rotation. It can be understood that in the screwed state, the first anti-rotation surface 333 and the first matching surface 311 can also just abut against each other.

[0114] In one embodiment, Fig.15 , Fig.16 As shown, the anti-rotation surface includes a second anti-rotation surface 334 provided on the first locking block 3321, and the matching surface includes a second matching surface 321 provided on the matching locking platform 320. The second anti-rotation surface 334 is located on the surface of the first locking block 3321 facing the matching locking platform 320, and the second matching surface 321 is located on the side of the matching locking platform 320. When the movable lock buckle 330 rotates from the screwed state to the separated state, the second anti-rotation surface 334 and the second matching surface 321 gradually approach each other. In the separated state, a certain gap is maintained between the second anti-rotation surface 334 and the second matching surface 321. When the movable lock buckle 330 continues to rotate a certain angle along the screwed direction, the second anti-rotation surface 334 and the second matching surface 321 abut against each other to achieve one-way anti-rotation. It can be understood that in the separated state, the second anti-rotation surface 334 and the second matching surface 321 can also just abut against each other.

[0115] In the screwed state, the first locking block 3321 stops at the side of the fixed locking platform 310 away from the rotating shaft 340 to achieve the screwing effect. In some other embodiments, the first locking block 3321 can also cooperate with the fixed locking platform 310 to achieve the anti-rotation effect. In some other embodiments, the first locking block 3321 can also cooperate with the matching locking platform 320 to achieve the anti-rotation effect. Fig. 9 , Fig.10 It can be understood that the first locking block 3321 can cooperate with the fixed locking platform 310 to achieve positioning, and the second locking block 3322 can also cooperate with the matching locking platform 320 to achieve positioning.

[0116] This embodiment is preferred, such as Fig.17 As shown, a locking groove is formed between the first locking block 3321, the second locking block 3322 and the knob 331, and at least part of the fixed locking platform 310 and at least part of the matching locking platform 320 are matched in the locking groove. The first locking block 3321 has a first boss portion 3323 protruding toward the rotating shaft 340, and the second locking block 3322 has a second boss portion 3324 protruding toward the rotating shaft 340. Fig.15 , Fig.16 The first anti-rotation surface 333 is disposed on the side of the second boss portion 3324 facing the rotating shaft 340, and the second anti-rotation surface 334 is disposed on the side of the first boss portion 3323 facing the rotating shaft 340, combined with Fig. 9 The positioning rib 312 abuts against the groove wall of the lock groove, so that the active rotation and positioning are achieved through different parts of the active lock buckle 330, which can increase the service life of the active lock buckle 330 and avoid frequent force on one side of the active lock buckle 330. In some other embodiments, the first anti-rotation surface 333 and the second anti-rotation surface 334 can be respectively or jointly provided on the fixed lock platform 310 and the matching lock platform 320, and correspondingly, the positioning rib 312 can also be respectively or simultaneously provided on the fixed lock platform 310 and the matching lock platform 320.

[0117] For other contents not described in this embodiment, reference may be made to the above embodiments.

[0118] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. A box-type vacuum cleaner, comprising a vacuum cleaner housing, wherein the vacuum cleaner housing comprises a dust box and a box cover, wherein the box cover is covered on the dust box, wherein: One of the side walls corresponding to the dust box and the box cover is provided with a fixed locking platform, and the other is provided with a movable lock buckle. The movable lock buckle includes a knob and a locking block. Rotating the knob drives the locking block to engage or separate with the fixed locking platform. In the engaged state, the locking block and the fixed locking platform stop each other in the height direction of the vacuum cleaner shell to engage the box cover.

2. A box-type vacuum cleaner according to claim 1, characterized in that: The locking block is provided with a stop surface, and the fixed locking platform is provided with a matching surface. In the screwed state and / or the separated state, the stop surface abuts against the matching surface to stop the movable lock buckle from rotating in one direction, so that the rotation directions of the movable lock buckle in screwing and separation are different.

3. A box-type vacuum cleaner according to claim 2, characterized in that: The anti-rotation surface includes a first anti-rotation surface provided at one end of the locking block and / or a second anti-rotation surface provided at the other end, and the matching surface includes a first matching surface provided at one side of the fixed locking platform and the locking block stopper and / or a second matching surface provided at the side of the fixed locking platform. When the movable lock buckle rotates from the separated state to the screwed state, the first anti-rotation surface and the first matching surface gradually approach each other. In the screwed state, when the movable lock buckle continues to rotate in the screwed direction, the first anti-rotation surface and the first matching surface abut against each other to prevent rotation in one direction. and / or, When the movable lock buckle rotates from the screwed state to the separated state, the second anti-rotation surface and the second matching surface gradually approach each other. In the separated state, when the movable lock buckle continues to rotate in the separation direction, the second anti-rotation surface and the second matching surface abut against each other to prevent one-way rotation.

4. A box-type vacuum cleaner according to claim 1, characterized in that: The movable lock buckle is rotatably installed on the dust box or the box cover through a rotating shaft, one of the side walls of the dust box and the box cover corresponding to each other is provided with a fixed locking platform, and the other is provided with a matching locking platform, the locking block is provided with a stop surface, and the fixed locking platform and / or the matching locking platform are provided with a matching surface, and the stop surface abuts against the matching surface to stop the movable lock buckle from rotating in one direction when in a screwed state and / or in a separated state, so that the rotation directions of the movable lock buckle are different when screwed and separated.

5. A box-type vacuum cleaner according to claim 4, characterized in that: The anti-rotation surface includes a first anti-rotation surface provided at one end of the locking block and / or a second anti-rotation surface provided at the other end, and the matching surface includes a first matching surface provided at the fixed locking platform and / or the matching locking platform and / or a second matching surface provided at the side of the fixed locking platform and / or the matching locking platform. When the movable lock buckle rotates from the separated state to the screwed state, the first anti-rotation surface and the first matching surface gradually approach each other. In the screwed state, when the movable lock buckle continues to rotate in the screwed direction, the first anti-rotation surface and the first matching surface abut against each other to prevent rotation in one direction. and / or, When the movable lock buckle rotates from the screwed state to the separated state, the second anti-rotation surface and the second matching surface gradually approach each other. In the separated state, when the movable lock buckle continues to rotate in the separation direction, the second anti-rotation surface and the second matching surface abut against each other to prevent one-way rotation.

6. A box-type vacuum cleaner according to any one of claims 1 to 5, characterized in that: A limiting rib is further provided on at least one of the side walls corresponding to each other of the dust box and the box cover, and a limiting strip is provided on the movable lock buckle. At one position when the movable lock buckle rotates from the screwed state to the separated state, the limiting rib abuts against one end of the limiting strip, and in the separated state, the limiting rib is close to the other end of the limiting strip.

7. A box-type vacuum cleaner according to any one of claims 1 to 3, characterized in that: The fixed locking platform is provided with a locating rib protruding thereon, and the locating rib abuts against the locking block in the screwed state.

8. A box-type vacuum cleaner according to claim 7, characterized in that: The locking block is provided with a positioning groove, and in the screwed state, at least part of the positioning rib is fitted in the positioning groove.

9. A box-type vacuum cleaner according to any one of claims 4 to 5, characterized in that: The fixed locking platform and / or the matching locking platform are provided with positioning ribs, and the positioning ribs abut against the locking block in the screwed state.

10. A box-type vacuum cleaner according to claim 9, characterized in that: The locking block is provided with a positioning groove, and in the screwed state, at least part of the positioning rib is fitted in the positioning groove.

11. A box-type vacuum cleaner according to claim 9, characterized in that: The locking block comprises a first locking block protruding from one side of the knob and a second locking block protruding from the opposite side, and the anti-rotation surface is arranged on the first locking block and / or the second locking block.

12. A box-type vacuum cleaner according to claim 11, characterized in that: A locking groove is formed between the first locking block, the second locking block and the knob, at least part of the fixed locking platform and at least part of the matching locking platform are received in the locking groove, the first locking block has a first boss portion protruding toward the second locking block, and the second locking block has a second boss portion protruding toward the first locking block, the anti-rotation surface is arranged on the side of the first boss portion and / or the second boss portion facing the rotating shaft, and the positioning rib abuts against the groove wall of the locking groove.

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