CN208892425U - A kind of ground brush assemblies and dust catcher with it - Google Patents

Abstract

The utility model provides a kind of ground brush assemblies, including ground brush body and the connector portions being rotatably connected in ground brush body, the runing rest being rotatably connected in connector portions, the conducting wire for extending to by connector portions ground brush body through runing rest, the hole for passing through conducting wire is offered on runing rest, it further include the protective ring being fixedly installed on hole, the wire guide being connected with hole is offered on protective ring, anti-attrition set is arranged in a part at least through protective ring of conducting wire, the contact surface that protective ring and anti-attrition cover is round and smooth cambered surface.Therefore; when connector portions are rotated relative to runing rest; only the anti-attrition set on the outside of conducting wire is in contact with the round and smooth cambered surface of protective ring and rubs; substantially reduce frictional force protect anti-attrition cover inside conducting wire; it avoids conducting wire when following runing rest to rotate and generates larger frictional force between hole wall end; the service life of electric floor brush is extended, and structure process is simple, at low cost.

Description

A kind of ground brush assemblies and dust catcher with it

Technical field

The utility model relates to burnisher fields, more particularly, to a kind of ground brush assemblies with disconnected transmitting apparatus and have Its dust catcher.

Background technique

The electric floor brush connector of dust catcher needs frequently to bend torsion in use, therefore is set to inside connector Conducting wire be easy to cause and fracture or wear, influence the service life of electric floor brush.Cabling is inside current electric floor brush connector The anti-wear structure that will usually increase metal platen or shell and conducting wire is integrally wrapped, and this infrastructure cost compared with Height, structure is complicated.

Utility model content

The purpose of this utility model is to provide it is a kind of can the effective service life of extending connector inner lead ground brush assemblies And dust catcher.

To realize one of above-mentioned purpose of utility model, one embodiment of the utility model provides a kind of ground brush assemblies, including It ground brush body and is rotatably connected in the connector portions in the ground brush body, the rotation that is rotatably connected in the connector portions Bracket, the conducting wire for extending to ground brush body through runing rest by the connector portions, offer on the runing rest for across The hole of conducting wire further includes the protective ring being fixedly installed on the hole, offers on the protective ring and is connected with the hole Wire guide is arranged with anti-attrition set, the protective ring and the anti-attrition set in a part at least through protective ring of the conducting wire Contact surface be round and smooth cambered surface.

As the further improvement of one embodiment of the utility model, the protective ring includes for consolidating the protective ring Due to the fixed part in the hole, the extension that partially protrudes into the engaging portion in the hole and extend from the engaging portion to outside hole Portion, the inner wall of the engaging portion form the wire guide being connected with the hole.

As the further improvement of one embodiment of the utility model, the extension include at least from the engaging portion to First cambered surface of the extension rounding off and the second cambered surface set on the extension outer rim.

As the further improvement of one embodiment of the utility model, one end far from the extension of the engaging portion Portion has the third cambered surface of rounding off.

As the further improvement of one embodiment of the utility model, the anti-attrition set is made of wear-resistant material.

As the further improvement of one embodiment of the utility model, the anti-attrition set is cotton varnished sleeve or PE pipe.

As the further improvement of one embodiment of the utility model, the inner surface in the hole has a step, described solid The one end for determining portion is equipped with the grab being cooperatively connected with the step.

To realize one of above-mentioned purpose of utility model, one embodiment of the utility model also provides a kind of dust catcher, including As above any ground brush assemblies.

Compared with prior art, the utility model has the beneficial effects that can be seen that this reality from the above technical solution Have the characteristics that many Substantial technicals outstanding with novel, after implementing technical solutions of the utility model, significant technology into Step is mainly reflected in: due to being arranged with anti-attrition set in a part at least through protective ring of scrubbing brush conducting wire of the invention, and being protected The contact surface of coil and anti-attrition set is round and smooth cambered surface, when connector portions are rotated relative to runing rest, only subtracting on the outside of conducting wire Grinding set is in contact with the round and smooth cambered surface of protective ring and rubs, substantially reduce frictional force protect anti-attrition cover inside conducting wire, It avoids conducting wire when following runing rest to rotate and generates larger frictional force between hole wall end, therefore scrubbing brush can be effectively protected The inner lead of component works normally, and avoids occurring the service life that abrasion extends electric floor brush, and structure process it is simple, at This is cheap.

Detailed description of the invention

Fig. 1 is an embodiment of the present invention ground brush assemblies schematic perspective view；

Fig. 2 is an embodiment of the present invention ground brush assemblies schematic front view；

Fig. 3 is the direction A-A schematic cross-sectional view in Fig. 2；

Fig. 4 is the area Tu3Zhong A enlarged diagram (blade is in the first operating position)；

Fig. 5 is the area Tu3Zhong A enlarged diagram (blade is in the second operating position)；

Fig. 6 is ground brush assemblies and blade position relationship schematic perspective view (at blade in an embodiment of the present invention In the first operating position)；

Fig. 7 is the side structure schematic view of Fig. 6；

Fig. 8 is that the first plant hair group and second in roller brush assembly plants hair group structural schematic diagram；

Fig. 9 is the first plant hair group cellular construction schematic diagram；

Figure 10 is the structural schematic diagram of an embodiment of the second plant pieces；

Figure 11 is the scrubbing brush component side structure schematic view of an embodiment of the present invention；

Figure 12 is Figure 11 center tap portion and rotary bracket structure schematic diagram；

Figure 13 is Figure 11 center tap portion and runing rest schematic cross-sectional view；

Figure 14 is conducting wire and runing rest connection relationship diagram；

Figure 15 is the direction B-B schematic cross-sectional view in Figure 13；

Figure 16 is anti-attrition set and protective ring partial enlargement diagram in Figure 13；

Figure 17 is protective ring schematic perspective view；

Figure 18 is the schematic internal view for removing blade scrubbing brush fan housing；

Figure 19 is enlarged diagram at C in Figure 14；

Figure 20 is the deformation schematic diagram of blade in disconnected transmitting apparatus；

Figure 21 is the partial enlargement diagram of blade activity space between limiting section in the second working condition；

Figure 22 be an embodiment of the present invention brush assemblies and pull rod cooperation after overall structure diagram；

Figure 23 is the utility model scrubbing brush by the decomposition diagram of half pull state；

Figure 24 is that the utility model pull rod, cover board and rotation lid decompose assembling schematic diagram；

Figure 25 is the schematic diagram that the utility model pull rod is placed in rotation lid；

Figure 26 is the schematic diagram that the utility model pull rod is raised from rotation lid.

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.

- Fig. 7 referring to Fig.1, in a kind of embodiment of the utility model, the utility model provides a kind of dust catcher, Including ground brush assemblies 10.Ground brush assemblies 10 include disconnected transmitting apparatus, and disconnected transmitting apparatus includes scrubbing brush fan housing 11, is set to scrubbing brush fan housing 11 Intracavitary roller brush assembly 12 and the blade 13 being set on scrubbing brush fan housing 11, roller brush assembly 12 include round brush shaft 14 and axially set Hair group 15 is planted in at least column first in round brush shaft 14 and an at least column second plant hair group 16, due to the second plant hair group 16 It rotates diameter R2 and is greater than the first rotation diameter R1 for planting hair group 15, the hair being wrapped in roller brush assembly 12 is supported on First, which plants hair group 15 and second, plants in hair group 16.In the round brush rotation process of inactive disconnected hair mode, hair is wrapped in round brush It can be supported by intensive first plant hair group 15 and the second plant hair group 16 on component, form bigger packing radius, fur article the Two plant Mao Zuhui are contacted always with blade 13, it is possible to reduce hair is wrapped in the probability on round brush, to reach effective disconnected hair Effect.

Roller brush assembly 12 includes that two column first plant hair group 15 and two column second plant hair group 16, and each column first plants 15 He of hair group Second plant hair group 16 alternates setting along round brush shaft circumference.First, which plants hair group 15, plants hair group unit including multiple first 151, it is each first plant hair group unit 151 include at least it is two different first plant pieces 152 and second plant pieces 153, first Hair group 15 is planted to be alternately arranged and formed by multiple first plant pieces 152 and the second plant pieces 153.

In various embodiments, the first plant pieces 152 and the second plant pieces 153 can have different string diameter and/or Different shapes.For example, as shown in Fig. 6,8-10, first plants the silk of pieces 152 in one embodiment of the utility model Diameter be greater than second plant pieces 153 string diameter, and first plant pieces 152 be linear, second plant pieces 153 be curved shape, i.e., compared with Hard the first straight plant pieces 152 and soft curved second plants 153 arranged adjacent of pieces.Due to soft curved second plant pieces 153 dilations are higher, so that can basically form complete continuous wool top shape at the top of the plant pieces of roller brush assembly 12.Second plants hair group 16 be soft wool top, and the second string diameter for planting hair group 16 plants pieces 152 and second less than first and plants the string diameter of pieces 153, and close Degree is closeer, therefore the top of the second plant hair group 16 is capable of forming complete continuous strip.

Blade 13 is rotatablely arranged on scrubbing brush fan housing 11, specifically, setting in the ground brush body 20 of ground brush assemblies 10 It is equipped with pedal 21, is passed through when user carries out downward pedal 21, pedal 21 when cleaning needs to start disconnected hair function using dust catcher Connector is rotated around setting shaft line to the axis direction close to round brush shaft with cutting blade 13.Therefore, blade 13 has at least two A operating position, as shown in figure 4, blade 13 only touches the second of roller brush assembly 12 when blade 13 is in the first operating position Hair group 16 is planted, the first plant hair group 15 is not touched.Since the string diameter of the second plant hair group 16 is most thin, blade 13 touches the second plant hair Group 16 can cut portion hair prevent more hairs from being wrapped in roller brush assembly 12, and soft fine and closely woven second plants hair group 16 Biggish resistance will not be generated to blade 13 again.

As shown in figure 5, blade 13 stretches to the first plant hair group 15 and simultaneously when blade 13 is in the second operating position Two plant the inside of hair group 16, so that blade 13 is deeply cut to the inside that round brush plants hair, are supported on the first plant hair effectively to cut Automatic secondary finely disconnected hair can be realized without tearing machine open in hair in group 15 and the second plant hair group 16, and raising is disconnected to send out efficiency.

Compared with prior art, the tactical diameter that second due to the ground brush assemblies of dust catcher plants hair group 16 is greater than first and plants The tactical diameter of hair group 15, in round brush rotation process, fur item second, which plants hair group 16, to be contacted always with blade 13, can subtract Few hair is wrapped in the probability on round brush, to reach effective disconnected hair effect.In the scrubbing brush course of work, hair is wrapped in rolling It can be supported by the first intensive plant hair group 15 and the second plant hair group 16 on brush assemblies 12, form bigger packing radius, opening After dynamic circuit breaker hair mode, the blade 13 for cutting hair can compare the deep region for switching to hair accumulation, without tearing machine open i.e. Achievable automatic secondary, which finely breaks, to be sent out, and disconnected hair efficiency is improved, user-friendly.And the scrubbing brush modular construction of the utility model Simply, not increasing excessive constitutional detail can be realized the function that the hair wound on cleaning round brush is sent out from dynamic circuit breaker, prevent from sending out Life winds bring dust catcher failure problems because of hair.

1, Figure 12 and Figure 13 referring to Fig.1, the utility model one embodiments, provides a kind of dust catchers, including ground Brush assemblies 10.Ground brush assemblies 10 include ground brush body 20, scrubbing brush idler wheel 22, the connector portions being rotatably connected in ground brush body 20 30, the hose 23 being connected with the air duct in ground brush body 20 is provided in connector portions 30, and connector portions 30 can be around first rotating shaft F phase Runing rest 35 is rotated, runing rest 35 can be rotated around the second shaft X relative to ground brush body 20.It is opened on runing rest 35 Equipped with for across the hole of conducting wire 40 36, conducting wire one end for controlling scrubbing brush component operation to be fixed at connector portions 30, It is extended in ground brush body 20 by connector portions 30 through runing rest 35 again, therefore conducting wire 40 will follow rotation branch when local dataller makees The rotation of frame 35 and follow movement.

4-17 referring to Fig.1, in present embodiment brush assemblies further include the protective ring 33 being fixedly installed on hole 36, protect line Circle upper 33 offers the wire guide 37 being connected with hole 36, is arranged with and subtracts in a part at least through protective ring 33 of conducting wire 40 The contact surface of grinding set 32, protective ring 33 and anti-attrition set 32 is round and smooth cambered surface.Specifically, protective ring 33 includes for that will protect line Fixed part 38 that circle 33 is fixed in hole 36 partially protrudes into engaging portion 39 in hole 36 and self-bonding portion 39 extends to outside hole 36 Extension 41, the inner wall of engaging portion 39 form the wire guide 37 being connected with hole 36.Conducting wire 40 enters wire guide through extension 41 It 37 and extends downwardly, with protective ring 33 CONTACT WITH FRICTION occurs for anti-attrition set 32, to protect the conducting wire 40 inside anti-attrition set 32.

Extension 41 includes at least self-bonding portion 39 to the first cambered surface 42 of 41 rounding off of extension and is set to extension Second cambered surface 43 of 41 outer rims.The one end of the separate extension 41 of engaging portion 39 has the third cambered surface 44 of rounding off.Hole 36 inner surface has a step 45, and one end of fixed part 38 is equipped with the grab 46 being cooperatively connected with step 45, so that line will be protected Circle 33 is fixed on the hole 36 of runing rest 35, can also be fixedly connected with mode by other certainly for protective ring 33 and is fixed on rotation On bracket 35, such as the fixed forms such as card slot connection.

The direction first rotating shaft F is consistent with the direction of axis line in hole 36 in present embodiment, when user is needed using dust catcher When rotating scrubbing brush direction, connector portions 30 rotate an angle relative to runing rest 35.Due to scrubbing brush conducting wire 40 of the invention 32 are covered at least through anti-attrition is arranged in a part of protective ring 33, and the contact surface that protective ring 33 is covered with anti-attrition is round and smooth Cambered surface, when connector portions 30 are rotated relative to runing rest 35, only the anti-attrition set 32 with protective ring 33 in 40 outside of conducting wire is round and smooth Cambered surface, i.e. anti-attrition set are in contact and rub with the first cambered surface 42 of rounding off, the second cambered surface 43 or third cambered surface 44, significantly The conducting wire that frictional force protects anti-attrition set internal is reduced, avoids conducting wire 40 when following runing rest 35 to rotate and 40 wall of hole Larger frictional force is generated between end, therefore the inner lead that can be effectively protected ground brush assemblies works normally, and avoids grinding Damage extends the service life of electric floor brush, and structure process is simple, low in cost.

Anti-attrition set 32 is made of wear-resistant material, for example the set of anti-attrition in one embodiment 32 can be cotton varnished sleeve or PE Pipe.

Referring to Figure 1, shown in Fig. 2, Fig. 3 and Figure 18, in another embodiment of the utility model, a kind of scrubbing brush includes disconnected Transmitting apparatus 21 and scrubbing brush fan housing 11, the both ends of scrubbing brush fan housing 11 are respectively arranged with the first fixation hole 111 and the second fixation hole 112, 13 both ends of blade are movably arranged in the first fixation hole 111 and the second fixation hole 112, are arranged on the inner wall 110 of scrubbing brush fan housing 11 There is limiting section 9, the inside portion or outside portion of limiting section 9 is arranged in blade 13, and 11 inner wall of scrubbing brush fan housing is arranged in limiting section 9 Intermediate position.

Furtherly, Figure 18 and Figure 19 are please referred to, limiting section 9 includes the first locating part 91 and the second locating part 92, and first Locating part 91 and the second locating part 92 form limiting slot 90, and the part knife spine at 13 middle part of blade is built in limiting slot 90, blade 13 Equipped with free gap, the first locating part 91 and positioned at the front side of blade 13 between limiting section 9, the second locating part 92 is located at The rear side of blade 13.The structure of first locating part 91 and the second locating part 92 can be plate muscle shape structure or bump structure, described Limiting section 9 can be integrally formed with scrubbing brush fan housing 11.

Refer to shown in Fig. 4 and Fig. 6, when blade 13 is in the first operating position (blade 13 and second plant hair group 16 it Between working condition), blade 13 only touch roller brush assembly 12 second plant hair group 16, do not touch the first plant hair group 15.By Most thin in the string diameter of the second plant hair group 16, blade 13 touches the second plant hair group 16 being capable of the more hairs of cut portion hair prevention It is wrapped in roller brush assembly 12, and soft the second fine and closely woven plant hair group 16 will not generate biggish resistance, blade to blade 13 again 13 not bending deformations substantially.

It refers to shown in Fig. 5, Fig. 6 and Figure 20, (the inclination of blade 13 and first when blade 13 is in the second operating position Plant the working condition between hair group 15 and the second plant hair group 16), blade 13 stretches to the first plant hair group 15 and second simultaneously and plants hair The inside of group 16 protrudes into blade 13 and is cut to the inside that round brush plants hair, is supported on 15 He of the first plant hair group effectively to cut Second plants the hair in hair group 16, and automatic secondary finely disconnected hair can be realized without tearing machine open, improve disconnected hair efficiency.At blade 13 When the second operating position, 13 bending direction one of blade as shown in figure 16, the bending deformation of blade 13 is big at this time, in long-term work Make under state, serious bending deformation can be generated, at this time blade middle of the first locating part 91 of limiting section 9 to blade 13 To position-limiting action, 13 curved transitions of blade are prevented.In addition work as something unexpected happened, other parts are given blade 13 active force, led When blade 13 being caused to deform to bending direction two, the second locating part 92 of limiting section 9 equally plays limit to the blade middle part of blade 13 Position effect, prevents blade 13 from generating serious bending deformation.

Furtherly, according to the length and deflection of blade 13, position of the limiting section 9 on 11 inner wall of scrubbing brush fan housing can Think one, or multiple uniform layouts；Or at least one first locating part can be separately provided in the side of blade, it can also At least one second locating part is separately provided with the other side in blade；Or multiple first locating parts and second locating part It is applied in combination or first locating part and multiple second locating parts is applied in combination；Or first locating part and second limit Part can be symmetrical arranged, and can also misplace is setting.When limiting section is a locating part, the bending in one direction of blade can be prevented Deformation can prevent the deformation of blade both direction when limiting section is the first locating part and the first locating part is applied in combination.Separately Outside, the shape of blade can be L shape or straight panel shape, can play limit as long as the part blade of blade is arranged in limiting section Position effect, prevents blade bending deformation.

Compared with prior art, when the utility model scrubbing brush starts disconnected transmitting apparatus, blade 13 is rotated, due to blade 13 Length is longer, is pullled winding by hair during blade 13 and roller brush assembly act on and is easy to happen bending deformation.Therefore, Two locating parts are arranged in side before and after 13 middle position of blade, and the first locating part 91 limits blade to inward side to (scheming Bending direction one shown in 16) overbending, the second locating part 92 limit blade in outward direction (i.e. shown in Figure 16 be bent Direction two) overbending, even if such blade 13 has deformation in itself or is pullled deformation of being burdened with by hair in use, all only It can be deformed within the scope of the limitation of limiting section 9, this deformation range not will lead to knife well below the elastic deformation amount of blade material Piece failure.

It refers to shown in Figure 22, in another embodiment of the utility model, a kind of round brush draw-out device, including scrubbing brush wind Cover 11, rotation lid 50, cover board 60 and pull rod 70, rotation lid 50 are rotatably connected on the side end face of scrubbing brush fan housing 11, and pull rod 70 can It is releasably connected on rotation lid 50, cover board 60 is fixed on 50 middle part of rotation lid.

Referring to Figure 22 scrubbing brush overall structure, round brush 8 is placed in the state in scrubbing brush fan housing 11 at this time；Pull rod 70 Connecting pin 71 be articulated to rotation lid 50 pull rod mounting portion 511, the annular position 72 of pull rod 70 is deposited by pull rod is snapped onto Store up in limiting section 512, the annular position 72 of such pull rod 70 will not from the first annulus 51 of rotation lid 50 and the second annulus 52 it Between formed pull rod placing groove 53 in deviate from, thus prevent pull rod 70 arbitrarily shake.

It please refers to shown in Figure 23, for round brush 8 by half pull status diagram, one end of round brush 8 is provided with round brush end cap 80, rolling Brush end cap 80 is connect with rotation lid 50, and the preferable knob lid 50 of connection type is interference fitted with round brush end cap, and sealing ring is arranged On rotation lid 50；The lid body position of rotation lid 50 is provided at least one rotation mounting portion 500, and the scrubbing brush of scrubbing brush fan housing 11 is inserted It is provided at least one solution lock section 110 on entrance inner wall, rotates mounting portion 500 and the cooperation rotation connection of solution lock section 110, additionally Be provided on the side end face of brush fan housing 11 locking mark and unlock mark, lift pull rod 70 drive rotation lid 50 rotate and rotate to Unlocking home position, rotation lid 50 unlock.When pulling pull rod 70, pull rod 70 will be with will rotate lid 50 and round brush 8 from scrubbing brush wind The side end of cover 11 is laterally taken out, and pull rod 70 and scrubbing brush are all connected or are mounted on always on rotation lid 50 at this time.When taking-up round brush 8 pairs its clear up after, when round brush 8 is placed back in scrubbing brush fan housing 11, because pull rod 70 and round brush 8 are all mounted on always rotation On lid 50, hand-held pull rod 70 is rotated lid 50 and round brush 8 is laterally disposed, inserts from the insert port of the side end face of scrubbing brush fan housing 11 Enter, round brush 8 is inserted into scrubbing brush fan housing 11, and rotation lid 50 is inserted into the side end face of scrubbing brush fan housing 11, and rotating tension bar 70 drives rotation lid 50 rotations, rotating mounting portion 500 and cooperating with the solution lock section 110 in scrubbing brush fan housing 11 for rotation lid 50 rotate connection, cover board 60 On arrow be directed toward the locked position mark of 11 side end of scrubbing brush fan housing, indicate that position of the round brush 8 in scrubbing brush fan housing 11 is also pacified It is attached to position.

It please refers to shown in Figure 24, the better embodiment that cover board 60, pull rod 70 and rotation lid 50 assemble, pull rod 70 is in class When like U-shaped structure, it is ring part 72 in the middle part of pull rod 70 that 70 both ends of pull rod, which are respectively equipped with connecting pin 71, and ring part has certain Elasticity, the space of ring part 72 allow the space size of a finger (usually index finger), this space size allows finger Ring part 72 is put into facilitate hand-held pull rod 70 to be rotated.Rotate lid 50 include the first annulus 51 and the second annulus 52, first Pull rod placing groove 53 is formed between annulus 51 and the second annulus 52, is provided with a pair of of 511 He of pull rod mounting portion on the first annulus 51 A pair stores limiting section 512, is provided with semicircle arc fluting 5120, the ring of semicircle arc fluting 5120 and pull rod 70 on limiting section 512 The connecting pin 71 of shape portion interference fit, 70 both ends of pull rod is inserted into pull rod mounting portion 511, and the ring part 72 of pull rod is stored by a pair Limiting section 512 snaps onto placing groove 53, and such snap fit facilitates pull rod 70 to be placed on inside rotation lid 50, does not protrude Rotate lid 50 outside, assemble in this way it is more compact and beautiful, while prevent pull rod 70 arbitrarily shake scrubbing brush work when touch To other articles, to improve the comfort of scrubbing brush work.

Furtherly, the connecting pin 71 at 70 both ends of pull rod can be straight-bar type structure, when for straight-bar type structure, corresponding first The pull rod mounting portion 51 being arranged on annulus 51 be equipped with insertion hole 5110, insertion hole 5110 be blind hole structure or through-hole structure, due to Ring part 72 has certain elasticity, and the connecting pin 71 at 70 both ends of pull rod can be inserted directly into the insertion hole of pull rod mounting portion 511 In the 5110 or straight section connecting pin 71 of 70 one end of pull rod is first inserted into the insertion hole 5110 of pull rod mounting portion 511, and pull rod 70 is another The insertion hole for being inserted into another the corresponding pull rod mounting portion 511 of pull rod mounting portion 511 of the straight section connecting pin 71 of one end In 5110, pull rod 70 belongs in knob lid 50 along 8 radially installed of round brush.

Referring to Figure 24, Figure 25 and Figure 26, the erection sequence of cover board 60 and pull rod 70, first pull rod 70 mounted in rotation On hub cap 50, rotates and be additionally provided with bit-avoiding slot 54 on the second annulus 52 of lid 50, it is ensured that the smooth loading of pull rod 70, wait draw After bar 70 is packed on rotation lid 50, cover board 60 is fixed to rotation lid 50 by welding or the modes such as glue bonding or snaps into position On, cover board 60 is installed into 50 middle position of rotation lid, excessively movement occurs radially to deviate from knob for limiting pull rod 70 Lid 50, while being identified with arrow on cover board 60 and playing indicative function, the direction of rotation or position of instruction rotation lid.In addition cover board There is gap 55 between 60 and pull rod 70, it can be from storage limiting section 512 for the point of rotation with pull rod mounting portion 511 convenient for pull rod 70 It produces, so that finger can hold 70 turn of pull rod rotation lid 50, the straight-bar length L of the connecting pin 71 at 70 both ends of pull rod, which is greater than, to be drawn The distance between bar mounting portion 511 and cover board 60 M prevent pull rod 70 from falling off from the pull rod mounting portion 511 of rotation lid 50.

In another better embodiment that cover board 60, pull rod 70 and rotation lid 50 assemble, when pull rod 70 is in that similar Ω is tied When structure, i.e., the connecting pin 71 at 70 both ends of pull rod is hooked structure, the pull rod mounting portion being arranged on corresponding first annulus 51 511 structures can be coupler construction, and 71 active buckle of connecting pin at 70 both ends of pull rod is in the hook of pull rod mounting portion 511, pull rod 70 belong in knob lid 50 it is axially mounted along round brush 8.

Compared with prior art, the round brush draw-out device of the utility model covers one pull rod of setting in the rotation of round brush, When needing detachable rolling brush, rotation lid rotation to unlocked position is pulled pull rod that can split out round brush from scrubbing brush by turn pull rod. Pull rod in the device solves the drawbacks of needs are by tool ability detachable rolling brush, and the extraction of more convenient user uses, separately Outer cover plate has position-limiting action and decoration function to pull rod, and covering plate structure installation is simple and convenient, low in cost.

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 (8)

1. a kind of ground brush assemblies, including ground brush body and the connector portions being rotatably connected in the ground brush body, rotationally The runing rest that is connected in the connector portions, the conducting wire for extending to ground brush body through runing rest by the connector portions, it is described The hole for passing through conducting wire is offered on runing rest, it is characterised in that: it further include the protective ring being fixedly installed on the hole, The wire guide being connected with the hole is offered on the protective ring, is covered in a part at least through protective ring of the conducting wire Equipped with anti-attrition set, the contact surface of the protective ring and anti-attrition set is round and smooth cambered surface.

2. ground according to claim 1 brush assemblies, it is characterised in that: the protective ring includes for consolidating the protective ring Due to the fixed part in the hole, the extension that partially protrudes into the engaging portion in the hole and extend from the engaging portion to outside hole Portion, the inner wall of the engaging portion form the wire guide being connected with the hole.

3. ground according to claim 2 brush assemblies, it is characterised in that: the extension include at least from the engaging portion to First cambered surface of the extension rounding off and the second cambered surface set on the extension outer rim.

4. ground according to claim 3 brush assemblies, it is characterised in that: one end far from the extension of the engaging portion Portion has the third cambered surface of rounding off.

5. ground according to claim 1 brush assemblies, it is characterised in that: the anti-attrition set is made of wear-resistant material.

6. ground according to claim 4 brush assemblies, it is characterised in that: the anti-attrition set is cotton varnished sleeve or PE pipe.

7. ground according to claim 2 brush assemblies, it is characterised in that: the inner surface in the hole has a step, described solid The one end for determining portion is equipped with the grab being cooperatively connected with the step.

8. a kind of dust catcher, it is characterised in that: including brush assemblies such as claimed in any one of claims 1 to 7ly.