CN209595645U - The suction nozzle and dust catcher of dust catcher - Google Patents

Abstract

The utility model relates to a kind of suction nozzles of dust catcher, comprising: pedestal, the pedestal lead to the lower surface equipped with lower surface and cavity, the cavity；At least one brush；Sleeve is connected, the connection sleeve is configured to be connected to the cavity；And clamp forks, the clamp forks are arranged between the pedestal and the sleeve and install with being pivotally connected around transverse axis relative to the pedestal and the sleeve, it is characterized in that, the suction nozzle includes mechanism and control stick, the control stick is configured to activate the mechanism according at least one position, in this position, it is locked by the clamp forks relative to the pedestal, at least one brush, which is kept from the lower surface, to be retracted, and the clamp forks are configured to pedestal described in ballast, to force the pedestal due to fixed and backward according to 10 ° to 11 ° of inclined at inclination angles.The utility model further relates to a kind of dust catcher equipped with this suction nozzle.

Description

The suction nozzle and dust catcher of dust catcher

Technical field

The utility model relates to the suctions equipped with the suction nozzle for allowing to draw the dust and small grain size waste that are present on surface The field of dirt device.The utility model is intended to design a kind of suction nozzle being easily adapted to according to the property to dust suction surface.

Background technique

It being well-known on the market equipped with the dust catcher of suction nozzle, they allow through dust suction come clean surface, with Remove the dust and small grain size waste of attachment on these surfaces.

It may, for example, be square brick veneer, parquet floor, laminate, moquette carpet or carpet to dust suction surface.Therefore, It is suitable, the suction nozzle for cleaning surface can be adapted to preferably based on the property on surface.

Traditionally, suction nozzle includes connection sleeve and pedestal, and pedestal includes under the cavity being laterally extended on suction nozzle Surface, the cavity are connected to by rigidity or flexible conduit with the sleeve.During using suction nozzle, the lower surface of pedestal is positioned At adjacent with to dust suction surface.

In patent application FR2967042, the pedestal and connection sleeve of suction nozzle are connected by connecting rod, the connecting rod one side edge First axle be pivotally connected with pedestal, be on the other hand pivotally connected to install along second axis and sleeve, the axis that This is parallel and parallel with the rotation axis to the bogie wheel on dust suction surface.Pedestal includes two angle backstops, and connecting rod is at it Front end includes arm, the arm when pedestal pivots upward or downward relative to connecting rod with angle de contact.Pedestal is on the lower surface thereof Including two edges, which is separately positioned on the front and rear of cavity.When the forward travel of suction nozzle, arm and upper angle De contact, this contacts leading edge with to dust suction surface, and back edge is slightly detached from from the surface.On the contrary, when suction nozzle When setback, arm and inferior horn de contact, this contacts back edge with to dust suction surface, and leading edge is slightly from the surface It is detached from.Edge allows to scrape the surface with the contact on the surface, on the contrary, edge allows to make sky relative to the disengaging on the surface Air-flow enters in cavity.

Utility model content

The purpose of this utility model is that designing a kind of suction nozzle, which allows best to be adapted to the property to dust suction surface Matter, this adaptation are the effects by single control stick come what is completed, use and use the visual of position in order to dust catcher Change.

For this purpose, the utility model relates to a kind of suction nozzles of dust catcher, comprising: pedestal, the pedestal equipped with lower surface and Cavity, the cavity lead to the lower surface；At least one brush；Sleeve is connected, the connection sleeve is configured to connect with the cavity It is logical；And clamp forks, the clamp forks are arranged between the pedestal and the sleeve and around transverse axis relative to described Pedestal and the sleeve are installed with being pivotally connected, which is characterized in that the suction nozzle includes mechanism and control stick, the control stick structure It causes to be locked by the clamp forks relative to the pedestal in this position according at least one position actuating mechanism, At least one brush, which is kept from the lower surface, to be retracted, and the clamp forks are configured to pedestal described in ballast, described to force Pedestal is due to fixed and backward according to 10 ° to 11 ° of inclined at inclination angles

The scraping back edge and ground face contact of the specifically configured permission pedestal of the fixation, and therefore allow to work as suction nozzle The air leakage at the rear portion of suction nozzle is reduced or even eliminated when moving over a surface to be cleaned.Therefore, under preceding scraping edge The dust collection efficiency in face is improved, when surface especially to be cleaned is fabric type.

In an embodiment of suction nozzle according to the present utility model, on the one hand the tilt angle is limited by surface to be cleaned Fixed and another aspect is limited by the front on the lower surface of the pedestal.

In an embodiment of suction nozzle according to the present utility model, the control stick is configured to be activated according to three positions The mechanism, the mechanism are configured to:

At first position, by pivoting the clamp forks relative to the pedestal, make under at least one described brush It drops and is located into from the lower surface and stretch out；

In the second place, by pivoting the clamp forks relative to the pedestal, make it is described at least one paint It rises and is located into from the lower surface and retract；

At the third place, by locking the clamp forks relative to the pedestal, at least one described brush is protected It holds from the lower surface and retracts.

The utility model further relates to a kind of equipped with the suction nozzle for including one in features described above and/or another feature Dust catcher.Sleeve is connected to dust collecting system by rigidity or flexible pipe, or even is directly connected to dust collecting system.

Detailed description of the invention

The feature and advantage of the utility model by read below based on attached drawing suction nozzle embodiment description after table Reveal and, in the accompanying drawings:

Fig. 1 to Fig. 3 shows a part of three positions of the control stick of suction nozzle and the mechanism of suction nozzle；

Fig. 4 to Fig. 7 shows another part of three positions of the control stick of suction nozzle and the mechanism of suction nozzle；

Fig. 8 shows pedestal；

Fig. 9 and Figure 10 shows two views of the first component of mechanism；

Figure 11, which is shown, is integrated with the second component of the mechanism of control stick；

Figure 12 shows and connect sleeve and take turns the clamp forks fitted together with two；

Figure 13 shows the supporting element of two brushes；

Figure 14 shows the suction nozzle that control stick is in the second position；

Figure 15 shows the biography for driving the first component and second component shown in Fig. 9 to Figure 11 while the mechanism of rotation Lever；

Figure 16 shows the connecting rod of the mechanism；

Figure 17 shows the retainers of clamp forks；

Figure 18 shows another view of the pedestal of Fig. 8；

Figure 19 partlys show the suction nozzle at first position, and the attached drawing highlights the retainer of Figure 17 relative to fork The position of shape part；

Figure 20 shows the bottom view of suction nozzle, and the attached drawing highlights the lower surface of pedestal and the presence of cavity.

Specific embodiment

As shown in Figure 1 to Figure 3, suction nozzle 1 includes connection sleeve, in the following description referred to as sleeve 2, the end of sleeve 2 2a is connected with the connector of rigidity or flexible pipe, which is connected to the dust collecting system of dust catcher (not shown).It has existed in the market The modification of various dust catchers, and can be used together with suction nozzle 1 according to the present utility model；These dust catchers are for this field Be for technical staff it is known, be not described in detail in the present patent application.

Suction nozzle 1 includes clamp forks 3 and two wheel 4a-4b, such as is shown in FIG. 12.Sleeve 2 is along transverse axis X1 phase Clamp forks 3 are installed with being pivotally connected, transverse axis X1 preferably corresponds to the side for being respectively disposed at clamp forks 3 and sleeve 2 The rotation axis of the wheel 4a-4b in portion.However, it is possible to provide the modification of suction nozzle 1 according to the present utility model, wherein wheel 4a-4b Rotation axis slightly deviates downwards and/or backward relative to the pivot axis X1 between clamp forks 3 and sleeve 2.

Suction nozzle 1 includes such as pedestal 5 shown in Fig. 8 and Figure 18.Clamp forks 3 are along transverse axis X2 the bottom of relative to Seat 5 is installed with being pivotally connected.For this purpose, clamp forks 3 include Liang Ge branch 6 and 7.Pay attention in Figure 12, the outside portion of the first branch 6 Dividing 6a includes hole 8；Such hole exists on the exterior portion 7a of the second branch 7, although the hole is sightless.Branch 6 Two connector 9a-9b shown in Figure 18 are pivotally accommodated respectively with this some holes 8 on 7, which is arranged in bottom The opposite of two inner part 5a-5b at the rear portion of seat 5.

Therefore, sleeve 2 can posteriorly or anteriorly be swung relative to clamp forks 3, arrow 10a and 10b difference as shown in figure 1 It is shown, and clamp forks 3 can also posteriorly or anteriorly be swung relative to pedestal 5, as the arrow 11a and 11b in Fig. 2 distinguish institute Show.

Suction nozzle 1 includes supporting element 12 shown in such as Figure 13, and there are two brushes for installation on supporting element 12.When the supporting element 12 when being mounted on the pedestal 5, these brushes are respectively positioned at the front side 5c and rear side 5d of pedestal 5, is located in the brush of front side 5c For it is preceding brush 13, be located in rear side 5d brush be after brush 14, as shown in such as Fig. 1 and Figure 20.Supporting element 12 is along perpendicular to pedestal 5 Lower surface 15 front 15a setting axis X 3 be mounted on being slidably connected on pedestal 5, as shown in Figure 1.When pedestal 5 does not have It lies in any stress when on dust suction surface, which is roughly vertical.Support member 12 includes shown in Figure 13 Two guide groove 16a-16b, two guide groove 16a-16b accommodate two complementary guiding members of the upside for being arranged in pedestal 5 respectively Part 17a-17b, as shown in Fig. 8 and Figure 18.Similarly, supporting element 12 includes two guide hole 18a-18b, two guide hole 18a- 18b accommodates two guide rod 19a-19b for being arranged in the upside of pedestal 5.Supporting element 12 and pedestal are also shown in Fig. 8 and Figure 13 Translated axis line X3 between 5.

Suction nozzle 1 includes control stick 20, and 20 actuating mechanism 21 of control stick, the overview of the mechanism 21 is in Fig. 1 into Fig. 7 Occur.Control stick 20 is installed along transverse axis X4 relative to pedestal 5 with being pivotally connected, this allows the control stick according to three positions It sets pivot and allows the mechanism 21 mobile according to three different locations.

Mechanism 21 includes two component 22-23, which is respectively disposed at the side of pedestal 5, is such as example schemed 4 to shown in Fig. 7.Mechanism 21 is acted on when the position change of control stick 20 by mobile two component 22-23 and driving member On supporting element 12 and clamp forks 3, as detailed below.

As shown in figure 11, the first component 22 is integrated with control stick 20 and including the first cavity 24 at right angle and semicolumn Second cavity 25 of shape.First and second cavity 24-25 accommodates the first end at right angle of drive rod 26 shown in figure 15 26a, this allows to be fastened on control stick 20 on the drive rod 26.The assembling for example appears in Figure 19.

Such as shown in figure 8, pedestal 5 includes seven rolling bearing 27a-27g, two of them rolling bearing 27b and 27f cloth It sets at the upper end of guide rod 19a-19b, in addition five rolling bearings (27a, 27c-27e and 27g) are arranged in five extensions The end of pawl 28-32.These rolling bearings 27a-27g limits axis X 4 and rotatably accommodates drive rod 26, such as such as Fig. 4 institute Show.

As shown in figure 9, second component 23 also includes the second cavity 34 of the first cavity 33 at right angle and semi-cylindrical, the One cavity 33 and the second cavity 34 accommodate the second end 26b at right angle of drive rod 26, and as shown in figure 15, this allows institute Second component 23 is stated to be fastened on drive rod 26 and be consequently fixed to be integrated on the first component 22 of control stick 20.The assembling example Such as appear in Figure 19.

Therefore, the manipulation of control stick 20 allows while pivots drive rod 26 and two component 22-23 around axis X 4.

The first component 22 includes the driving pawl 35 equipped with slit 36, as shown in figure 11.Similarly, second component 23 includes Equipped with the driving pawl 37 of slit 38, as shown in Figure 9 and Figure 10.The two driving pawls 35 and 37 are separately positioned on drive rod 26 The opposite of two end 26a-26b at right angle, on the side of pedestal 5, as shown in such as Figure 19.

As shown in such as Figure 13, Figure 14 and Figure 16, supporting element 12 includes two cavity 39a- on the 12a-12b of its side 39b, two cavities pivotally accommodate due to connecting shaft 41 each along transverse axis X5 and keep the connecting rod being pivotally connected First part 40a.In Figure 13, one in connecting rod 40 is illustrated only, on the side 12b of supporting element 12 to emphasize another Cavity 39a and connecting shaft 41 on one side 12a；Certainly, connecting rod 40 is positioned at cavity 39a before arranging connecting shaft 41 In.

As shown in figure 16, each connecting rod 40 includes slit 42 on its second part 40b, in the side 12b of supporting element 12 On the driving pawl 35 of the first component 22 be contained in the slit 42, and similarly, on the side 12a of the supporting element 12 The driving pawl 37 of second component 23 be contained in the slit 42.Mandrel 43 shown in Figure 14 is housed in the second of connecting rod 40 In the slit 36 of driving pawl 35 in hole 44 on the 40b of part and on the first component 22, similarly on second component 23 In the slit 38 of driving pawl 37.Therefore, the second part 40b of connecting rod 40 can be pivoted and be slided in corresponding slit 36 and 38 It is dynamic.

As with reference to shown in Fig. 8, Figure 13 and Figure 18, supporting element 12 includes two hollow circles for being respectively equipped with guide hole 18a-18b Cylindrical section 45a-45b contains spring (not shown) in the two hollow cylindrical portions, these springs accommodate guide rod 19a-19b is simultaneously resisted against on the cross-piece 46a-46b for being arranged in the upside of pedestal 5, when not having any object to keep the support When part 12, this forces supporting element 12 to be replied upwards relative to pedestal 5.

At the first position of Fig. 1, Fig. 4 and control stick shown in fig. 5 20 and mechanism 21, driving pawl 35 and 37 allows to lead to Crossing connecting rod 40 translates supporting element 12 downwards relative to pedestal 5, this allows to remove preceding brush 13 and rear brush 14 and is arranged to them It is stretched out relative to lower surface 15.Preceding brush 13 and rear brush 14 can be shelved on on the S of dust suction surface, and the lower surface 15 of pedestal 5 Holding is separated with the surface S.

In the second place of control stick 20 and mechanism 21, as shown in Figure 2 and Figure 6, driving pawl 35 and 37 is pivoted, this makes Slit 36 and 38 upwardly and rearwardly moves, as shown in Figure 2.At this location, connecting rod 40 tends to remain in position shown in FIG. 1 It sets, that is to say, that at the first end 36a and 38a of the slit 36 and 38 on driving pawl 35 and 37.However, above-mentioned (not shown) Spring presence force supporting element 12 rise and force connecting rod 40 as shown in Figure 2 position, that is to say, that rise to the slit 36 and 38 second end 36b and 38b.In the second place, preceding brush 13 and rear brush 14 are retracted from the downside of pedestal 5 15, under Surface 15 is shelved on on the S of dust suction surface.

At the third place of control stick 20 and mechanism 21, as shown in Figure 3 and Figure 7, driving pawl 35 and 37 continue backward and It is pivoted up, and connecting rod 40 positions as shown in Figure 3, that is to say, that be located in the slit 36 and 38 on driving pawl 35 and 37 At first end 36a and 38a.Supporting element 12 is when passing through the second position relative to pedestal under the action of spring (not shown) 5 rise, and therefore, supporting element 12 is maintained at the raised position, the lower surface 15 of preceding brush 13 and rear brush 14 relative to pedestal 5 It retracts.

The first component 22 includes that backstop refers to 47, and backstop refers to that 47 are located at 20 lower section of control stick, as shown in figure 11.Similarly, Two components 23 include that backstop refers to 48.The branch 6-7 of clamp forks 3 respectively includes end 6c-7c, and end 6c-7c extends beyond institute The axis X 2 that clamp forks 3 are pivoted relative to pedestal 5 is stated, as shown in figure 12.These ends 6c-7c respectively includes carrier finger 49-50. Backstop refers to that 47-48 is separately positioned in the rotating range of carrier finger 49-50.

At the first position of control stick 20 and mechanism 21, as shown in Figure 4 and Figure 5, backstop refers to that 47-48 is located at highest point, This allows clamp forks 3 to swing backward and pivoting relative to pedestal 5 along the direction of arrow 11a shown in Fig. 2, Zhi Daozhi It holds and refers to that 49-50 refers to that 47-48 is contacted with backstop, as shown in Figure 5.In turn, clamp forks 3 can be along arrow 11b's shown in Fig. 2 Direction is swung forward, until carrier finger 49-50 is contacted with two stop part 51-52 on the upper surface 53 that pedestal 5 is arranged in.

The second place of control stick 20 and mechanism 21 shown in Fig. 6, backstop refer to 47-48 relative to shown in Fig. 4 and Fig. 5 Its position pivot downwards.In the Fig. 6, clamp forks 3 are swung backward along the direction of arrow 11a shown in Fig. 2.Pay attention to It is that the carrier finger 50 in clamp forks 3 refers to that 48 contact with the backstop on second component 23；Refer between 47 in carrier finger 49 and backstop Situation be it is identical, due to the presence of control stick 20, this is not present in Fig. 6.These backstops are referred to the stop position of 47-48 Selection has the function of that substantially limit clamp forks 3 swings backward relative to pedestal 5 in the second place.Due to this limitation, wheel 4a-4b tends to lift to dust suction surface S, and the effect that the quality of clamp forks 3, wheel 4a-4b and sleeve 2 then has is ballast Pedestal 5 simultaneously swings backward it along the direction of arrow 54 shown in Fig. 3, until wheel 4a-4b and the surface S contact.Pedestal 5 Lower surface 15 includes relative to the acclivitous rear portion 15b of its front 15a；Therefore, before being formed by ballast and allowing to make pedestal Portion 15a is tilted relative to surface S with angle [alpha] 1, as shown in Figure 2.This permission air stream enters the cavity of pedestal 5 shown in Figure 20 In 55.Preferably, backstop refers to that 47 and 48 stop position will be selected to (1 ° < α of angle [alpha] 1 between 1 degree and 3 degree 1 < 3 °), preferably equal to 2 degree (α 1=2 °).

At the third place of control stick 20 and mechanism 21 shown in Fig. 7, backstop refers to that 47-48 is pivoted downwards completely, and The carrier finger 49-50 of clamp forks 3 is clipped between the stopper section 51-52 that the backstop refers on the upper surface 53 of 47-48 and pedestal 5. Therefore, clamp forks 3 are locked at the position of Fig. 7 relative to pedestal 5.Control stick 20 is being actuated into from the second position During three positions, the backstop of component 22-23 refers to that 47-48 is resisted against on the carrier finger 49-50 of clamp forks 3, this forces described forked Part 3 swings forward along the direction of arrow 11b shown in Fig. 2 and tends to make to take turns 4a-4b and S disengaging in surface to be cleaned.As before Described, the ballast of the pedestal 5 generated by the quality of clamp forks 3, wheel 4a-4b and sleeve 2 forces the pedestal 5 along shown in Fig. 3 The direction of arrow 54 is swung backward, this makes the front 15a of the lower surface 15 of pedestal 5 tilt angle [alpha] 2 shown in Fig. 3.The angle [alpha] 2 are equivalent to tilt angle of the surface S to be cleaned relative to the front 15a on lower surface 15, this allows to keep the rear portion 15b close Surface S to be cleaned, as shown in Figure 3.Preferably, the angle [alpha] 2 (2 < 11 ° of 7 ° < α) between 6 degree and 11 degree.The inclination angle Degree is determined according to the air mass flow of the electric ventilator generation by dust catcher.Air mass flow is bigger, and inclination angle alpha 2 is bigger.Make For non-limiting example, when the air mass flow of electric ventilator is about 25l/s, tilt angle is about 7 °, and air mass flow is 28l/s, then tilt angle is about 10 °.

As shown in Fig. 3 and Figure 20, at the third place, front 15a and rear portion 15b on the lower surface 15 of pedestal 5 it Between edge 15c allow scrape to dust suction surface S.Edge 15c corresponds roughly to the back edge 55a of cavity 55.The cavity 55 It is connected to connector 56, as shown in figure 20, connector 56 is connected to sleeve 2 by the flexible conduit 57 shown in dotted line in Fig. 1.

In addition, the position of the edge 15c between the front 15a on the lower surface of pedestal 5 15 and rear portion 15b allows to limit System even is eliminated the air leakage at suction nozzle rear portion, and therefore allows to enhance at suction nozzle front especially in the to be cleaned of fabric type Suction force on surface.

As shown in such as Fig. 9 to Figure 11, the first component 22 includes the lock pawl 58 equipped with pin 59, and second component 23 It further include the lock pawl 60 equipped with pin 61.When component 22 and 23 is mounted on drive rod 26, these pins 59 and 61 are arranged to It is facing with each other.Lock pawl 58 and 60 is flexible or flexible on component 22 and 23.As shown in figure 8, the upper surface 53 of pedestal 5 On extension pawl 29 include on 29a on the outside circular shape groove 62.Similarly, extend pawl 31 to wrap on 31a on the outside Circular groove is included, it is invisible in figure but identical as groove 62.These grooves 62 respectively include being positioned approximately in the groove 62 Central portion in hole 63-64, as shown in Figure 8.When component 22-23 is mounted on pedestal 5, pin 59 and 61 is housed in recessed respectively In slot 62, the pin 59 and 61 is slightly resisted against in the bottom of these grooves 62.Due to the flexibility of lock pawl 58 and 60,59 He of pin 61 enter the inside of hole 63-64 when they are corresponding, this makes the position stop of component 22-23, and therefore makes control stick 20 Position stop.In such configuration, control stick 20 and mechanism are in the second position.By applying slightly on control stick 20 To be moved into first or the third place, the flexibility of lock pawl 58 and 60 allows pin 59 and 61 being discharged into hole 63-64 pressure Outside, therefore allow actuating mechanism 21 and control stick 20.Then, pin 59 and 61 moves in corresponding groove 62, Zhi Dao One side is upwardly against on the first end 62a of the groove 62, and wherein control stick 20 and mechanism 21 have arrived at first position, Or be resisted against on the second end 62b of the groove 62 in the other directions, wherein control stick 20 and mechanism 21 have arrived at The third place.

As shown in Figure 10 and Figure 11, component 22-23 respectively includes baffle plate 65-66.As shown in Fig. 4 and 8, on pedestal 5 Extend pawl 28 and 32 includes protrusion 67-68 on 28a and 32a on the outside.At the first position of control stick 20 and mechanism 21, Baffle plate 65-66 is born against on these protrusions 68-67, as shown in Figure 4 and Figure 5.This allows by resisting bigger power Come accurately stop control stick 20 and mechanism 21, control stick 20 is often manipulated by user with foot.These baffle plates 65-66 and Protrusion 68-67 is ensured when control stick 20 returns to first position, in situation associated with groove 62 and pin 59 and 61 Under, the suitable power distribution on the width of pedestal 5.

As shown in figure 9, second component 23 includes pawl 69, pawl 69 is on the outside on 69a equipped with protrusion 70, the protrusion Portion 70 is resisted against on the inside 28b of the extension pawl 28 on pedestal 5, as shown in Figure 7.This allow by pin 61 is suitably kept into It leans against in groove 62 and the component 23 is fixed on pedestal 5.

Suction nozzle 1 further includes retainer 71 shown in Figure 17, which is fixed on pedestal 5 and including groove 72, 14 are brushed after containing in the groove 72, as shown in figure 19.As previously mentioned, at the first position of control stick 20, in clamp forks 3 The backstop that is resisted against on component 22-23 of carrier finger 49-50 refer on 47-48 which defines the clamp forks 3 relative to pedestal 5 The position that swings backward simultaneously makes the position stop.However it can be in variation example it is contemplated that being stopped at clamp forks 3 swings position It sets through retainer 71 and realizes, in this case, the lower surface 6b-7b of the branch 6-7 of clamp forks 3 shown in Figure 12 will be supported On the upper surface 71a for leaning against the retainer 71, as referring to Fig.1 9 it is envisioned that as.

It is also contemplated that the backstop is made to refer to that 47-48 is sufficiently disengaged from relative to the carrier finger 49-50, it is forked not limit Part 3 swings backward the second place of control stick 20 relative to pedestal 5, thus will be under the pedestal 5 in the second place The front 15a on surface 15 is flatly maintained on the S of dust suction surface.

Without departing from the scope of the invention it is contemplated that implementing variation example.

Claims (4)

1. a kind of suction nozzle of dust catcher, comprising: pedestal (5), the pedestal is equipped with lower surface (15) and cavity (55), the sky Chamber leads to the lower surface；At least one brush；It connects sleeve (2), the connection sleeve is configured to be connected to the cavity；And fork Shape part (3), the clamp forks be arranged between the pedestal and the sleeve and around transverse axis relative to the pedestal and The sleeve is installed with being pivotally connected, which is characterized in that the suction nozzle includes mechanism (21) and control stick (20), the control stick It is configured to activate the mechanism according at least one position, in this position, by the clamp forks (3) relative to the pedestal (5) it locks, at least one brush, which is kept from the lower surface (15), to be retracted, and the clamp forks (3) are configured to described in ballast Pedestal (5), to force the pedestal to tilt backward according to 10 ° to 11 ° of tilt angle (α 2) due to fixed.

2. the suction nozzle of dust catcher according to claim 1, wherein the tilt angle (α 2) is on the one hand by surface to be cleaned It limits and is on the other hand limited by the front (15a) on the lower surface of the pedestal (5) (15).

3. the suction nozzle of dust catcher according to any one of claim 1 to 2, wherein the control stick is configured to according to three A position activates the mechanism, and the mechanism is configured to:

At first position, by pivoting the clamp forks (3) relative to the pedestal (5), make at least one described brush Decline and be located into from the lower surface (15) and stretches out；

Make at least one described brush by pivoting the clamp forks (3) relative to the pedestal (5) in the second place Rise and be located into from the lower surface (15) and retracts；

It, will at least one described brush by locking the clamp forks (3) relative to the pedestal (5) at the third place It keeps retracting from the lower surface (15).

4. a kind of dust catcher, which is characterized in that the dust catcher is equipped with including spy described in any one of claims 1 to 3 The suction nozzle (1) of sign.