CN209107189U

CN209107189U - Dust catcher

Info

Publication number: CN209107189U
Application number: CN201820806365.7U
Authority: CN
Inventors: 卞小贤; 聂文明; 张建良
Original assignee: Suzhou Cleva Electric Appliance Co Ltd
Current assignee: Suzhou Cleva Electric Appliance Co Ltd
Priority date: 2017-12-23
Filing date: 2018-05-29
Publication date: 2019-07-16
Anticipated expiration: 2028-05-29
Also published as: CN109953687A

Abstract

The utility model discloses a kind of dust catcher, including bracket component and the dirt cup component being assembled on the bracket component, it is characterized in that, the dirt cup component includes dirt cup, dust outlet below the dirt cup, linkwork, it is coupled to below the dirt cup by the linkwork activity with the dirt cup lid and locking mechanism for being opened and closed the dust outlet, the locking mechanism includes unlock piece, first holding piece and the second holding piece, first holding piece can be coupled or disengage with second holding piece so that the dirt cup lid is corresponding to close or open the dust outlet, the unlock piece is rotationally connected on the dirt cup or the bracket component between non-operating position and unlocked position；Wherein, when the unlock piece turns to the unlocked position by the non-operating position, the unlock piece can drive first holding piece and second holding piece disconnected from each other, and to realize key unlock, easy to operate and structure is simple.

Description

Dust catcher

Technical field

The utility model relates to a kind of dust catchers, belong to small household appliances manufacturing technology field.

Background technique

Dust catcher is well-known and is manufactured and sell for many years by various manufacturers comprising lower section is discharged with dust The dirt cup of mouth, the dirt cup lid and locking mechanism being assembled to below the dirt cup.After completing ground cleaning operation, it can pass through Locking mechanism is operated, moves dirt cup lid with respect to dirt cup to open the dust outlet, and then the dust being collected into is discharged.But It is that in current dust catcher, in order to ensure the leakproofness and relative stability between dirt cup lid and dirt cup, will often lock machine The locking power of structure is arranged very big, and existing push type locking mechanism needs user that could unlock using very big strength, It causes operator and unlocks difficulty, and drive mechanism is complicated, while in order to look after the appearance of dust catcher, pressing component is often It is made small, further increases the unlock difficulty of operator.

Utility model content

The purpose of this utility model is to provide a kind of dust catchers, and to solve existing locking mechanism, structure is complicated and unlock The big problem of operation difficulty.

To achieve the above object, an embodiment of the present invention provides a kind of dust catcher, including bracket component and assembling To the dirt cup component on the bracket component, the dirt cup component include dirt cup, the dust outlet below the dirt cup, Linkwork is coupled to below the dirt cup by the linkwork activity with the dirt cup for being opened and closed the dust outlet Lid and locking mechanism, the locking mechanism include unlock piece, the first holding piece and the second holding piece, first holding piece with Second holding piece can be coupled or disengage so that the dirt cup lid closes or opens the dust outlet, the solution accordingly Latch fitting is rotationally connected on the dirt cup or the bracket component between non-operating position and unlocked position；Wherein, work as institute When stating unlock piece and turning to the unlocked position by the non-operating position, the unlock piece can drive first holding piece and Second holding piece is disconnected from each other.

In the utility model further embodiment, the bracket component includes first support and second support, described Dirt cup component have lengthwise axial direction and with the axially vertical transverse direction, the first support is assembled in the dirt cup component Lateral side upwardly extends and its lower end is not less than the dirt cup component, and the second support includes being assembled in the dirt cup component The lateral other side the second department of assembly and the support portion that is connected to second department of assembly lower end and extends downwardly；

The linkwork and the locking mechanism are located at the laterally opposed two sides of the dirt cup component, and work as the dirt cup When lid opens the dust outlet, the dirt cup lid is rotated by the linkwork to the direction far from the support portion.

In the utility model further embodiment, the first support includes upwardly extending and the company of scalable setting Bar and the handle for being connected to the small end, the support portion of the second support, which extends downwardly, can connect floor treatment dress It sets, the support portion and second department of assembly have the air-flow that can be connected to the dirt cup component and the floor-treating device logical Road.

In the utility model further embodiment, the linkwork is set to the front side of the dirt cup and is located at institute State the lower section of first support；The locking mechanism is set to the rear side of the dirt cup and close to the second support.

In the utility model further embodiment, one of first holding piece and second holding piece It is set to the dirt cup to cover, first holding piece and the wherein another of second holding piece are set to the dirt cup or institute It states on bracket component；

First holding piece and second holding piece snapped into one another can be coupled.

In the utility model further embodiment, first holding piece is the card for being set to the dirt cup and covering It hooks, second holding piece is the holding wall being formed in the dirt cup；When the dirt cup lid closes the dust outlet, The hook is coupled at the holding wall, and the holding wall limits the movement tendency of the hook straight down, so that institute It states dirt cup lid and remains turned-off the dust outlet.

In the utility model further embodiment, when the hook is coupled each other with the holding wall, the card It hooks and is formed with a unlock space between the dirt cup；

When the unlock piece is rotated from the non-operating position to the unlocked position, the unlock piece is at least partly It may extend into the unlock space and the hook pushed gradually to disengage the holding wall.

In the utility model further embodiment, the hook includes elastic free end and is connected to the dirt cup lid On fixing end, when the hook is coupled to the holding wall, under the promotion of the unlock piece, the elastic free end can Elastic deformation occurs and is flared out away from the dirt cup, so that the hook disengages the holding wall.

In the utility model further embodiment, the elastic free end includes the lock matched with the holding wall Wall and the lead-in chamfered above the locking wall are held, it is empty to form the unlock between the lead-in chamfered and the dirt cup Between；The unlock piece includes solution lock section, and the solution lock section has the cooperation inclined-plane to match with the lead-in chamfered, the unlock Portion extends downward into the unlock space；When the unlock piece is rotated from the non-operating position to the unlocked position, The solution lock section supports the lead-in chamfered to push the elastic free end to be flared out away from the dirt cup.

In the utility model further embodiment, the unlock piece includes operation portion, and the operation portion extends outwardly The side wall of the dirt cup and the pressing operation for receiving operator out, so that the unlock piece is downward in the non-operating position Turn to the unlocked position.

In the utility model further embodiment, the unlock piece includes and the dirt cup or the bracket component pivot Turn the pivot part of connection, receive the operation portion of user's operation and cooperate with first holding piece and/or second holding piece Solution lock section, the distance of the operation portion to the pivot part and the distance ratio of the solution lock section to the pivot part be greater than or Equal to 2.

In the utility model further embodiment, the distance and the solution lock section of the operation portion to the pivot part Distance ratio to the pivot part is 3~5.

Compared with prior art, the utility model has the beneficial effects that: passing through the structure for optimizing the locking mechanism, , it can be achieved that a key unlocks while ensuring the leakproofness and relative stability between the dirt cup lid and the dirt cup, operator The dirt cup lid can be made to automatically turn on the dust outlet without too great strength by operating the unlock piece, make discharge ash The operation of dirt is simpler more labor-saving, and structure is simple and secured.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the vertical type dust collector of an embodiment of the present invention；

Fig. 2 is the structural schematic diagram of the dirt cup component of an embodiment of the present invention；

Fig. 3 is the longitudinal section view of the line A-A along Fig. 2；

Fig. 4 is the cooperation schematic diagram of the dirt cup lid of an embodiment of the present invention, hook and unlock piece；

Fig. 5 is the structural schematic diagram of the unlock piece of an embodiment of the present invention.

Specific embodiment

The utility model is described in detail below with reference to specific embodiment shown in the drawings.But these embodiment party Formula is not intended to limit the utility model, structure that those skilled in the art are made according to these embodiments, method or Transformation functionally is all contained in the protection scope of the utility model.

Common dust catcher has vertical type dust collector, horizontal dust collector and portable dust collector etc., real in the utility model one It applies in example, it will be by being elaborated for vertical type dust collector to technical solution.

Join Fig. 1 to Fig. 5, present embodiments provides a kind of vertical type dust collector 100, including bracket component, frame assembly 10, use In collect dust dirt cup component and with ground face contact with the floor-treating device 40 for cleaning ground.The floor treatment Device 40 includes any one in scrubbing brush, circle brush, jamb duster and flat suction.

Join Fig. 1, the dirt cup component is generally configured as tubular construction and with the axial V of lengthwise and vertical with axial V Laterally.Clearly to express position and direction as described in this embodiment, joins the direction u-d shown in Fig. 1, axial V is limited Direction definition up and down direction (also referred to as longitudinal direction or vertical direction), wherein diagram direction u arrow is oriented to "upper", illustrates direction d Arrow is oriented to "lower"；The transverse direction that the direction f-b limits is defined as front-rear direction, wherein and diagram direction f arrow is oriented to " preceding ", Diagram direction b arrow is oriented to " rear ".

The bracket component includes being assembled in the first support 21 of the lateral side of the dirt cup component and being assembled in described The second support 22 of the lateral other side of dirt cup component.In the present embodiment, first support 21, second support 22 are assembled in respectively The front side of the dirt cup component, rear side, in other words namely the relative position of first support 21, second support 22 substantially limits The front-rear direction of dust catcher 100.

Specifically, the first support 21 includes the first department of assembly 212 and handle 211.First department of assembly 212 is solid Surely it is assembled in the front side of the frame assembly 10 and the dirt cup component, the lower end of first department of assembly 212 constitutes described the The lower end of one bracket 21 and the lower end for being not less than the dirt cup component.In the present embodiment, first department of assembly 212 is upward The connecting rod of extension and scalable setting and the upper end are crossed the frame assembly 10 and are upwardly extended until connecting with the handle 211 It connects；The handle 211 holds for operator to operate/move the dust catcher 100.

The second support 22 includes the second department of assembly 221 and support portion 222.The fixed group in second department of assembly 221 Rear side loaded on the frame assembly 10 and the dirt cup component and be oppositely arranged before and after first department of assembly 212；Institute Support portion 222 is stated to be connected to 221 lower end of the second department of assembly and extend downward into the support lower than at the dirt cup component The lower end assembly and connection in portion 222 is to the floor-treating device 40.The support portion 222 and second department of assembly 221 have The airflow channel of the dirt cup component and the floor-treating device 40, the ash-laden gas at the floor-treating device 40 can be connected to Stream can enter in the dirt cup component through the airflow channel.

Join Fig. 1 to Fig. 3, the dirt cup component includes cup body mechanism 30, linkwork 50 and locking mechanism.

Specifically, the cup body mechanism 30 includes dirt cup 31, the dust inlet port 311 above dirt cup 31, is set to dirt The dust outlet and dirt cup lid 32 of 31 lower section of cup.Wherein, the dirt cup 31 includes the side wall 310 for being set as tubular；The machine The sealing of body component 10 is docked at the dust inlet port 311；The dirt cup lid 32 passes through the 50 activity mating of linkwork To 31 lower section of dirt cup and for opening or closing the dust outlet.When the dirt cup lid 32 closes the dust discharge When mouth, the dust during the cleaning operation of ground is collected in inside the cup body mechanism 30；When the dirt cup lid 32 opens institute When stating dust outlet, the dust being collected into can be expelled to outside the cup body mechanism 30 through the dust outlet.

Join Fig. 3 and Fig. 4, in the present embodiment, the dirt cup lid 32 is pivotally connected by the linkwork 50 around axis t It is connected in the dirt cup 31, the linkwork 50 specifically includes the pivot 51 being set on the dirt cup lid 32 and is formed in Matching hole in the dirt cup 31, the pivot 51 are rotationally plugged in the matching hole, so that the dirt cup lid 32 is opened Or close the dust outlet.Certainly, in the embodiment of variation, the dirt cup lid can also be pivoted by the linkwork Ground is connected on the bracket component.

Wherein, the pivot 51 and when the matched matching hole, the two defines axis t jointly, and axis t laterally prolongs It stretches.

Further, the locking mechanism is for making the dirt cup lid 32 remain turned-off the dust outlet.In this reality It applies in example, the locking mechanism is located at the laterally opposed two sides of the dirt cup component with the linkwork 50, in this way, it is ensured that The locking power that the locking mechanism is used to that the dirt cup lid 32 to be made to remain turned-off the dust outlet is maximum, so that it is guaranteed that described Leakproofness and relative stability between dirt cup lid 32 and the dirt cup 31.

In the present embodiment, the linkwork 50 is set to the front side of the cup body mechanism 30 and is located at described first The lower section of frame 21, axis t extend along the left and right directions vertical with front-rear direction and vertical direction.When the dirt cup lid 32 is by closing Close the dust outlet be switched to open the dust outlet when, the dirt cup lid 32 around axis t to inferoanterior rotate, The i.e. described dirt cup lid 32 is rotated to the direction far from the support portion 222, to avoid because of the interference by the support portion 222 And the rotational angle of the dirt cup lid 32 is caused to be unable to reach most preferably, guarantee the more thoroughly more smooth of dust emissions.

Correspondingly, the locking mechanism is set to the rear side of the cup body mechanism 30 and close to the second support 22 Place.In this way, can operate convenient for operator, while the exterior aesthetics of dust catcher 100 can also be increased.

Further, join Fig. 1 to Fig. 5, the locking mechanism includes the first holding piece 60, the second holding piece 80 and unlock Part 70.

One of first holding piece 60 and second holding piece 80 are set on the dirt cup lid 32, described First holding piece 60 and the wherein another of second holding piece 80 are set on the dirt cup 31 or the bracket component, described First holding piece 60 and second holding piece 80 can be coupled or disengage each other.Wherein, when first holding piece 60 and described When second holding piece 80 is coupled each other, the dirt cup lid 32 can not rotate around axis t and remain turned-off the dust outlet；When When first holding piece 60 and second holding piece 80 disconnected from each other, under the effect of gravity, the dirt cup lid 32 is around axis t It rotates and opens the dust outlet.

The unlock piece 70 is used to receive the mechanically actuated of operator, and the cup body can be rotationally connected with around axis e In mechanism 30 or the bracket component, specifically, the unlock piece 70 includes pivot part, passes through the pivot part and the dirt Cup 31 or the bracket component are pivotally connected.In the present embodiment, the unlock piece 70 is rotationally connected in the dirt cup 31, institute It states pivot part and is set as pilot hole 74, the dirt cup 31 is provided with the assembles post 313 to match with the pilot hole 74, the solution Latch fitting 70 is sheathed in the assembles post 313 by the pilot hole 74, to realize that it is described that the unlock piece 70 is rotationally connected with In dirt cup 31.

In the unlock piece 70 in the rotation path of axis e, the unlock piece 70 has non-operating position (ginseng Fig. 2 institute Show) and unlocked position, that is to say, that the unlock piece 70 can rotate between the non-operating position and the unlocked position. Wherein, when the unlock piece 70 is located at the non-operating position, join Fig. 2, first holding piece 60 and second locking Part 80 can keep being coupled each other, so that the dirt cup lid 32 can not rotate around axis t and remain turned-off the dust outlet；When It is described when the unlock piece 70 receives the mechanically actuated of operator and turns to the unlocked position by the non-operating position Unlock piece 70 drives first holding piece 60 and second holding piece 80 disconnected from each other, so that the dirt cup lid 32 is in gravity It is rotated under effect around axis t and opens the dust outlet.In this way, the locking mechanism of the dust catcher 100 of the present embodiment It is designed as rotating lever formula structure, is ensuring leakproofness between the dirt cup lid 32 and the dirt cup 31 and relative stability Simultaneously, it can be achieved that key unlock namely operator can make the dirt cup without too great strength by operating the unlock piece 70 Lid 32 automatically turns on the dust outlet, completes the work of discharge dust, and easy to operate and structure is simple.

Further, in the present embodiment, first holding piece 60 is set on the dirt cup lid 32, second lock Gripping member 80 is set in the dirt cup 31, and first holding piece 60 and second holding piece 80 snapped into one another can be coupled.

Specifically, one of first holding piece 60 and second holding piece 80 are set as hook and wherein It is another to be set as holding wall.In the present embodiment, first holding piece 60 is the hook being set on the dirt cup lid 32, institute Stating hook includes locking wall 64；Second holding piece 80 is the holding wall being formed on the side wall 310 of the dirt cup 31, described Locking wall 64 matches with the holding wall；When the dirt cup lid 32 closes the dust outlet, the hook is coupled to At the holding wall, the holding wall fitting supports the locking wall 64 and limits to the hook, to limit the card The movement tendency along straight down is hooked, so that the dirt cup lid 32 be made to remain turned-off the dust outlet.

The buckle includes fixing end 61 and elastic free end 62.The fixing end 61 is fixedly attached to the dirt cup lid 32 On；When the hook is coupled to the holding wall, under the promotion of the unlock piece 70, the elastic free end 62 can occur Elastic deformation and transversely first direction x are flared out away from the side wall 310 of the dirt cup 31, so that described in hook disengagement Holding wall, the holding wall are released the limit of the hook, to make the dirt cup lid 32 under the effect of gravity around axis t It rotates and opens the dust outlet.

In the present embodiment, when the hook and the holding wall are coupled each other, the hook and the dirt cup 31 It is formed with a unlock space 9 between side wall 310, is rotated in the unlock piece 70 from the non-operating position to the unlocked position During, the institute that at least partly may extend into the unlock space 9 and support the hook outward of the unlock piece 70 Elastic free end 62 is stated, so that transversely first direction x opens outward away from 31 side wall 310 of dirt cup at the elastic free end 62 It opens.

Specifically, the elastic free end 62 includes the locking wall 64 and drawing above the locking wall 64 Guiding incline 63 is formed with the unlock space 9 between the lead-in chamfered 63 and the side wall 310 of the dirt cup 31；The unlock Part 70 includes ontology 71 and protrudes out the solution lock section 73 of the ontology 71, the solution lock section 73 and first holding piece downwards 60 and/or second holding piece 80 match, extend downward into the unlock space 9 (namely the lead-in chamfered 63 Between the side wall 310 of the dirt cup 31).When the unlock piece 70 is rotated from the non-operating position to the unlocked position When, the solution lock section 73 supports the lead-in chamfered 63 of first holding piece 60 to push the elastic free end 62 to deviate from The side wall 310 of the dirt cup 31 is flared out.

Preferably, the solution lock section 73 is provided with the cooperation inclined-plane 731 to match with the lead-in chamfered 63.In this way, can Guarantee the stability in engagement process, while the resistance of motion and friction noise can be reduced.

Further, the unlock piece 70 further includes operation portion 72, and the operation portion 72 is used to receive the machinery of operator Operation, so that the unlock piece 70 is moved in the non-operating position to the unlocked position.The operation portion 72 protrudes outward The ontology 71 and the side wall 310 of the dirt cup 31 is extended outward out, in order to receive the mechanically actuated of operator.At this In embodiment, axis e is laterally extended, and the mechanically actuated is that pressing operation namely operator can be pressed down the operation portion 72, so that the unlock piece 70 is swung down to the unlocked position in the non-operating position around axis e.

Further, the distance of the operation portion 72 to the pivot part is greater than the solution lock section 73 to the pivot part Distance.In the present embodiment, the operation portion 72 arrives the pivot part to the distance of the pivot part and the solution lock section 73 Distance ratio is greater than or equal to 2, it is preferable that the distance and the solution lock section 73 of the operation portion 72 to the pivot part are described in The distance ratio of pivot part is between 3 to 5.It exerts oneself when operator is unlocked operation in this way, can further decrease, so that solution Lock operation is more labor-saving more convenient, and is laid out beauty.

In addition, the dirt cup component further includes sealing ring 33, and when the dirt cup lid 32 closes the dust outlet, institute Sealing ring 33 is stated between the dirt cup lid 32 and the dirt cup 31 for sealing the dirt cup lid 32 and the dirt cup 31 Between gap.

Compared with prior art, the dust catcher 100 of the present embodiment has the following beneficial effects: by optimizing linkwork 50 With the positional relationship of the locking mechanism, the aesthetics of dust catcher 100 is not only promoted, but also guarantees the rotation of the dirt cup lid 32 Angle is discharged dust more thoroughly more convenient；By optimizing the structure of the locking mechanism, ensure the dirt cup lid 32 with , it can be achieved that a key unlocks while leakproofness and relative stability between the dirt cup 31, operator is by operating the solution Latch fitting 70 can make the dirt cup lid 32 automatically turn on the dust outlet without too great strength, make the operation of discharge dust more It is simple more labor-saving, and structure is simple, secured and beautiful.

There is provided in embodiment more than it should be noted that a kind of dirt cup being mounted on vertical type dust collector and dirt cup lid it Between locking/unlocking mechanism, with solve locking/unlocking mechanism of dirt cup lid be laid out in entire body unsightly and operation not side Just the problem of, but it is not meant to that the locking/unlocking mechanism only can be suitably used for vertical type dust collector, in other embodiments, the lock Hold/unlocking mechanism can be used in other burnishers, such as hand held cleaner.It is to be noted, however, that hand-held In the embodiment of formula dust catcher, bracket component above-mentioned then can be regarded as support or the supporting structure with the cooperation of dirt cup component, His structure and matching relationship then with it is consistent in above-described embodiment, no longer repeat one by one herein.

It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book With the other embodiments of understanding.

Tool of the series of detailed descriptions listed above only for the feasible embodiment of the utility model Body explanation, they are all without departing from made by the utility model skill spirit not to limit the protection scope of the utility model Equivalent implementations or change should be included within the scope of protection of this utility model.

Claims

1. a kind of dust catcher, including bracket component and the dirt cup component being assembled on the bracket component, which is characterized in that institute Dirt cup component is stated to include dirt cup, the dust outlet below the dirt cup, linkwork, pass through the linkwork activity It is coupled to below the dirt cup with the dirt cup lid and locking mechanism for being opened and closed the dust outlet, the locking mechanism packet Include unlock piece, the first holding piece and the second holding piece, first holding piece and second holding piece can be coupled or disengage with So that the dirt cup lid is closed or opened the dust outlet accordingly, the unlock piece in non-operating position and unlocked position it Between be rotationally connected on the dirt cup or the bracket component；Wherein, when the unlock piece is rotated by the non-operating position When to the unlocked position, the unlock piece can drive first holding piece and second holding piece disconnected from each other.

2. dust catcher according to claim 1, which is characterized in that the bracket component includes first support and second Frame, the dirt cup component have lengthwise axial direction and with the axially vertical transverse direction, the first support is assembled in the dirt The lateral side of cup assembly simultaneously upwardly extends and its lower end is not less than the dirt cup component, and the second support includes being assembled in institute The branch for stating the second department of assembly of the lateral other side of dirt cup component and being connected to second department of assembly lower end and extending downwardly Support part；

The linkwork and the locking mechanism are located at the laterally opposed two sides of the dirt cup component, and when the dirt cup lid is opened When opening the dust outlet, the dirt cup lid is rotated by the linkwork to the direction far from the support portion.

3. dust catcher according to claim 2, which is characterized in that the first support includes upwardly extending and scalable setting The connecting rod set and the handle for being connected to the small end, the support portion of the second support, which extends downwardly, can connect at a ground Device is managed, the support portion and second department of assembly have the gas that can be connected to the dirt cup component and the floor-treating device Circulation road.

4. dust catcher according to claim 2, which is characterized in that the linkwork is set to the front side of the dirt cup simultaneously Positioned at the lower section of the first support；The locking mechanism is set to the rear side of the dirt cup and close to the second support.

5. dust catcher according to claim 1, which is characterized in that its of first holding piece and second holding piece One of be set to the dirt cup and cover, first holding piece and the wherein another of second holding piece are set to the dirt On cup or the bracket component；

6. dust catcher according to claim 5, which is characterized in that first holding piece is to be set to the dirt cup to cover Hook, second holding piece is the holding wall being formed in the dirt cup；When the dirt cup lid closes the dust discharge When mouth, the hook is coupled at the holding wall, and the holding wall limits the movement tendency of the hook straight down, with The dirt cup lid is set to remain turned-off the dust outlet.

7. dust catcher according to claim 6, which is characterized in that when the hook and the holding wall are coupled each other, A unlock space is formed between the hook and the dirt cup；

When the unlock piece is rotated from the non-operating position to the unlocked position, the unlock piece can at least partly prolong It protrudes into the unlock space and the hook is pushed gradually to disengage the holding wall.

8. dust catcher according to claim 7, which is characterized in that the hook includes elastic free end and is connected to described The fixing end that dirt cup covers, when the hook is coupled to the holding wall, under the promotion of the unlock piece, the elasticity is certainly Elastic deformation can be occurred by end and be flared out away from the dirt cup, so that the hook disengages the holding wall.

9. dust catcher according to claim 8, which is characterized in that the elastic free end includes matching with the holding wall The locking wall connect and the lead-in chamfered above the locking wall, between the lead-in chamfered and the dirt cup described in formation Unlock space；The unlock piece includes solution lock section, and the solution lock section has the cooperation inclined-plane to match with the lead-in chamfered, institute Solution lock section is stated to extend downward into the unlock space；When the unlock piece is turned from the non-operating position to the unlocked position When dynamic, the solution lock section supports the lead-in chamfered to push the elastic free end to be flared out away from the dirt cup.

10. dust catcher according to claim 1, which is characterized in that the unlock piece includes operation portion, the operation portion to Extend the side wall of the dirt cup and the pressing operation for receiving operator outside, so that the unlock piece is in the non-operative position It sets and is swung down to the unlocked position.

11. dust catcher according to claim 1, which is characterized in that the unlock piece includes and the dirt cup or the branch Pivot part that frame component is pivotally connected, the operation portion for receiving user's operation and with first holding piece and/or second lock The solution lock section of gripping member cooperation, the distance of the operation portion to pivot part ratio at a distance from the solution lock section to the pivot part Value is greater than or equal to 2.

12. dust catcher according to claim 11, which is characterized in that the distance of the operation portion to the pivot part and institute The distance ratio for stating solution lock section to the pivot part is 3~5.