CN102389282B

CN102389282B - Screw drive device and mop using same

Info

Publication number: CN102389282B
Application number: CN201110240375.1A
Authority: CN
Inventors: 林义斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-19
Filing date: 2011-08-19
Publication date: 2014-12-24
Anticipated expiration: 2031-08-19
Also published as: CN102389282A

Abstract

The invention relates to a screw driving device and a mop using the same, wherein the screw driving device comprises: the inner wall of the outer pipe is longitudinally provided with two pairs of convex ribs, and a dovetail groove is formed between each pair of convex ribs, wherein a tooth plate with threads formed on the inner surface is inserted and clamped in each dovetail groove; the sleeve is coaxially locked at the top end of the outer tube; the screw guide block is clamped between the two tooth plates; a connecting rod axially inserted in said outer tube; and a driven member fixed to the top end of the connecting rod, the driven member being selectively driven by the lead screw block and rotating together with the connecting rod. The invention mainly utilizes the spiral driving device with the automatic clutch function to drive the mop head to rotate at high speed, so as to expect to use the centrifugal force generated by high-speed rotation to achieve the aim of dehydration; the invention can overcome the defects that the conventional spinning mop is easy to damage and the service life of the one-way bearing is short.

Description

Driving device for slow-run and use the mop of this device

Technical field

The present invention relates to a kind of spin mop, espespecially relate to and a kind ofly there is the driving device for slow-run of clutch function and use the mop of this device.

Background technology

Mop is the clean floor tool of a kind of almost every household indispensability, but because traditional mop must constantly clean clean wire harness and wring out and could clear up large-area floor, use very inconvenient, and user must yield to bucket and bends over during each cleaning wire harness, cleaning is made to become a quite tiring hard job.Especially winter, need the both hands of user constantly to contact with icy water or cleaning solution, make us especially can't stand.Therefore, just there is dealer to be adopted by the head of mop swiveling design recycling centrifugal force to be dried by the moisture on mophead, be rated as a novel structure and intimate design.But current many commercially available mop designs with swivel head are very imperfect, still have many structural shortcomings and have much room for improvement.

As the utility model patent of No. M407037 of tw Taiwan bulletin " Mop structure improvement (seven) ", wherein, this patent mainly utilizes female first sleeve pipe of tool and to have externally threaded driving screw, the spiral effect produced when relative motion, carry out the first plunger that turn utilizes the first pilot pin to link, the rotating disk group recycling this first plunger actuation second sleeve pipe and be connected with in the second sleeve pipe, and a dehydration barrel of arranging in pairs or groups utilizes centrifugal principle to reach effect of dehydration.

Although this utility model does not chat the detailed construction of its all component bright in detail in its description, but, on it manufactures with in use, really still have shortcomings.

Be provided with a series of spacing salient point relatively in this case first sleeve pipe, directly cannot be processed into a body according to existing process technology, therefore, the first sleeve pipe must be divided into two parts in the mode of vertical profile and process respectively, remerge into a tubular structure.Under the consideration based on processing and material dual cost, in the mode of injection molding for best mode.But, no matter the material of its first sleeve pipe is metal or plastics, there is not crash-proof major defect.For plastic tube, be easy to cause when the first sleeve pipe is impacted and break, cracked because of oxidation even in use for some time, make whole mop lose the function of its original spin.Again for metal tube, after its first sleeve pipe clashes into by side force, often for want of reinforced structure and produce depression, this depression directly will affect the movement of driving screw in the first sleeve pipe, the function that mop can be made equally to lose it spin.

Moreover, can relative to the first plunger backwards rotation when driving screw resets, according to the way of general dealer, inherently a sheathed unilateral bearing on its first pilot pin, just has way to use.But unilateral bearing is easy to lose its transmission agency because of water or sandy soil.After unilateral bearing is bedewed by water, if do not rotate again within a period of time, be easy to stuck motionless because of getting rusty; Moreover, if the tiny sand attached after mopping floor on mop enters in unilateral bearing, can unilateral bearing be worn away, expand its gap, and then lose its meshing functions and cannot transmission.

Therefore, the present inventor just for the inconvenience in the shortcoming on above-mentioned self-rotating type mop structure and use, in line with the spirit of working with perseverance and excelsior object, is actively constantly studied improvement, and through long-term effort and test, development and Design goes out the present invention finally.

Summary of the invention

Main purpose of the present invention, is to solve the above problems and provides a kind of and have the driving device for slow-run of clutch function and use the mop of this device, except strengthening except the structural strength of body, also can overcome the shortcoming using unilateral bearing to cause simultaneously.

In order to achieve the above object, the invention provides a kind of driving device for slow-run, described driving device for slow-run comprises: an outer tube, and the bottom of this outer tube is provided with a beam tube with shaft extension, and the junction of beam tube and outer tube is formed with an annular shoulder; The inwall of this outer tube is longitudinally formed with two pairs of fins, and be formed with a dovetail groove between every a pair fin, wherein, plugging blocking in each dovetail groove has on an inner surface and forms threaded dental lamina, and the screw thread on two dental laminas forms continuous print spiral correspondence, and spacing by described annular shoulder institute; One sleeve pipe being coaxially locked in described outer tube top, be installed with a hollow top bracing member in this sleeve pipe, the root edge of this top bracing member is outwards equipped with a flange, and this flange is in order to spacing described two dental laminas; One is located in the guide screw block between described two dental laminas, the surface of this guide screw block is formed with a screw thread produces spiral effect when guide screw block moves relative to two dental laminas; One is axially plugged in the connecting rod in described outer tube; And the driven member that is installed in described connecting rod top, this driven member is optionally driven by described guide screw block and rotates together with connecting rod.

The bottom surface central authorities of described guide screw block are formed with a taper perforation, and the end axis of this taper perforation is to being formed with a shrinkage pool; Described driven member is axially connected with in this guide screw block, this driven member is equipped with a taper flange, this taper flange is equipped with a series of tooth engaged, this driven member is stretched and is provided with the slide bar that extends into this guide screw block, described driving device for slow-run also comprises one and to be sheathed on this slide bar and the spring be placed in shrinkage pool, make this guide screw block do reciprocating relative to slide bar, optionally engage with tooth engaged with seasonal conical tooth hole, thus this driven member of turn.

Described guide screw block periphery is formed with a screw thread, and its bottom surface is equiped with a clutch structure with one heart; This clutch structure comprises a rotating disk, and this rotating disk central authorities stretch and are provided with one for being locked in the stud of guide screw block, and the corresponding two ends of this rotating disk are pivoted with a ratchet respectively; Described driven member is installed in described connecting rod end face with one heart, and the end face of this driven member is formed with one for the shrinkage pool of accommodating two ratchets of level, and the periphery of this shrinkage pool is formed with a series of ratchet.

The invention provides a kind of mop, described mop comprises: an outer tube, and the bottom of this outer tube is provided with a beam tube with shaft extension, and the junction of beam tube and outer tube is formed with an annular shoulder; The inwall of this outer tube is longitudinally formed with two pairs of fins, and be formed with a dovetail groove between every a pair fin, wherein, plugging blocking in each dovetail groove has on an inner surface and forms threaded dental lamina, and the screw thread on two dental laminas forms continuous print spiral correspondence, and spacing by described annular shoulder institute; One sleeve pipe being coaxially locked in described outer tube top, be installed with a hollow top bracing member in this sleeve pipe, the root edge of this top bracing member is outwards equipped with a flange, and this flange is in order to spacing described two dental laminas; One is located in the guide screw block between two dental laminas, the surface of this guide screw block is formed with a screw thread produces spiral effect when guide screw block moves relative to two dental laminas; One is axially plugged in the connecting rod in described outer tube; One driven member being installed in described connecting rod top, this driven member is optionally driven by described guide screw block and rotates together with connecting rod; And one utilizes jockey to be installed in the mophead of described connecting rod free end.

The bottom surface central authorities of described guide screw block are formed with a taper perforation, and the end axis of this taper perforation is to being formed with a shrinkage pool; Described driven member is axially connected with in this guide screw block, this driven member is equipped with a taper flange, this taper flange is equipped with a series of tooth engaged, this driven member is stretched and is provided with the slide bar that extends into this guide screw block, described mop also comprises one and to be sheathed on this slide bar and the spring be placed in shrinkage pool, make this guide screw block do reciprocating relative to slide bar, optionally engage with tooth engaged with seasonal conical tooth hole, thus this driven member of turn.

The bottom surface of described connecting rod is formed with a pivot connected slot along its diameter, and its end is formed with two fixture blocks, and the line of centres of these two fixture blocks is perpendicular to this pivot connected slot.

Described jockey comprises: a disk, be formed along its first diameter in this disk and wear groove, this disk is formed with a draw-in groove along its Second bobbin diameter, wherein, this first diameter and Second bobbin diameter orthogonal, and when described two fixture blocks are equipped in corresponding draw-in groove, connecting rod forms vertical corresponding relation with described mophead; One is arranged in the contiguous block that groove worn by described disk, and this contiguous block comprises the socket part that the articulated section and being positioned at top is positioned at bottom, and wherein, this articulated section is hubbed in the pivot connected slot of described connecting rod after wearing groove described in running through; And the collar that is sheathed on described socket part, this collar center is formed with one for the perforation of accommodating socket part, and its end face is formed with a series of annular tooth being fastened on described disk bottom surface; The bottom of this collar is stretched and is provided with one for installing the fixed axis of described mophead, and the periphery of this fixed axis respectively radial direction is provided with multiple fin; Described mop also comprises the fixture that is fixed in described contiguous block bottom surface, and this fixture is axially arranged with a stud, and this stud is locked in described socket part, with clamping described mophead.

The card central authorities of described mophead are formed with a circular hole run through for described fixed axis, and this circular hole periphery is formed with the caulking groove of the described fin blocking of multiple confession.

The bottom surface of described fixture is formed with a locating hole; Described mop also comprises one and runs through described fixture and be locked on the bolt in socket part.

Owing to have employed above-mentioned technical solution, the present invention mainly utilizes the driving device for slow-run with automatic clutch function, drives mophead High Rotation Speed, to expect that the centrifugal force utilizing high-speed rotation to produce reaches the object of dehydration; The present invention can overcome the shortcoming that usual spin mop easily damages and unilateral bearing service life is short.

Above-mentioned and other object of the present invention and advantage, be not difficult, from the detailed description and accompanying drawing of following selected embodiment, to gain in-depth understanding.

Certainly, the present invention on some part, or the arrangement of part is allowed different, but selected embodiment, then in this manual, be described in detail, and show that it constructs in the accompanying drawings.

Accompanying drawing explanation

Fig. 1 is the stereo appearance figure of the first embodiment of mop of the present invention;

Fig. 2 is the structural upright exploded view of the first embodiment of mop of the present invention;

Fig. 3 is the partial structurtes sectional view of the first embodiment of mop of the present invention;

Fig. 4 is the structure sectional view of the first embodiment of driving device for slow-run of the present invention;

Fig. 5 is the first action schematic diagram of the first embodiment of driving device for slow-run of the present invention;

Fig. 6 is the second action schematic diagram of the first embodiment of driving device for slow-run of the present invention;

Fig. 7 is the structural upright exploded view of the second embodiment of mop of the present invention;

Fig. 8 is the partial structurtes enlarged drawing of the second embodiment of mop of the present invention;

Fig. 9 is the action schematic diagram of the second embodiment of mop of the present invention;

Figure 10 is the dehydration action schematic diagram that mop of the present invention coordinates dehydration basket;

Figure 11 is the dehydration action schematic diagram that mop of the present invention coordinates dehydration barrel.

The description of symbols of primary clustering:

10. driving device for slow-run 11. outer tube

111. beam tube 112. annular shoulder

113. fin 114. dovetail grooves

12. dental lamina 13. top bracing members

131. flanges 132. are bored a hole

14. sleeve pipe 15. guide screw blocks

151. screw thread 152. taper perforations

153. shrinkage pool 16. driven members

161. taper flange 162. tooth engaged

163. slide bar 17. springs

18. collar 20. connecting rods

21. pivot connected slot 22. fixture blocks

30. jockey 31. disks

311. wear groove 312. draw-in groove

32. contiguous block 321. articulated sections

322. socket part 33. collars

331. perforation 332. annular tooth

333. fixed axis 334. fins

34. fixture 341. studs

342. locating hole 35. bolts

40. mophead 41. circular holes

411. caulking groove 51. guide screw blocks

511. screw thread 52. clutch structures

521. rotating disk 522. studs

523. ratchet 53. driven members

531. shrinkage pool 532. ratchets

60. dehydration basket 70. dehydration barrels

Detailed description of the invention

Consult Fig. 1 to Fig. 4, in the first embodiment of mop of the present invention, mainly comprise a cylindrical helical drive unit 10, and be coaxially connected with the connecting rod 20 and driven in this driving device for slow-run 10 and by it and utilize jockey 30 to be installed in the mophead 40 of connecting rod 20 free end.

This driving device for slow-run 10 comprises an outer tube 11, and the bottom of this outer tube 11 is provided with a beam tube 111 with shaft extension, and beam tube 111 is formed with an annular shoulder 112 with the junction of outer tube 11.The inwall of this outer tube 11 is longitudinally formed with two pairs of fins 113, and be formed with a dovetail groove 114 between every a pair fin 113, wherein, plug blocking in each dovetail groove 114 to have on an inner surface and form threaded dental lamina 12, and the screw thread on two dental laminas 12 forms continuous print spiral correspondence, and spacing by annular shoulder 112 institute.One sleeve pipe 14 being coaxially locked on outer tube 11 top, be installed with a hollow top bracing member 13 in this sleeve pipe 14, the root edge of this top bracing member 13 is outwards equipped with a flange 131, and the end face center of this top bracing member 13 is formed with a perforation 132, wherein, this flange 131 is in order to spacing two dental laminas 12.One is located in the guide screw block 15 between two dental laminas 12, the surface of this guide screw block 15 is formed with at least one line screw thread 151, therefore, can produce the effect of spiral when guide screw block 15 moves relative to two dental laminas 12.The bottom surface central authorities of this guide screw block 15 are formed with a taper perforation 152, and the end axis of this taper perforation 152 is to being formed with a shrinkage pool 153.One is axially connected with the driven member 16 in this guide screw block 15, this driven member 16 is equipped with one and is located at taper flange 161 on annular shoulder 112, this taper flange 161 is equipped with a series of tooth engaged 162, this driven member 16 is stretched and is provided with the slide bar 163 that extends into this guide screw block 15, one to be sheathed on this slide bar 163 and the spring 17 be placed in shrinkage pool 153, make this guide screw block 15 can do reciprocating relative to slide bar 163, optionally engage with tooth engaged 162 with seasonal conical tooth hole 152, and so as to this driven member 16 of turn.One is locked on the collar 18 on beam tube 111, and this collar 18 optionally inwardly oppresses beam tube 111, makes beam tube 111 packing.

The bottom surface of this connecting rod 20 is formed with a pivot connected slot 21 along its diameter, and its end is formed with two fixture blocks 22, and wherein, the line of centres of two fixture blocks 22 is perpendicular to this pivot connected slot 21.

This jockey 30 comprises a disk 31, be formed along its first diameter in this disk 31 and wear groove 311, this disk 31 is formed with a draw-in groove 312 along its Second bobbin diameter, wherein, this first diameter and Second bobbin diameter orthogonal, and when two fixture blocks 22 are equipped in corresponding draw-in groove 312, this connecting rod 20 forms vertical corresponding relation with mophead 40.One is arranged in the contiguous block 32 that groove 311 worn by this disk 31, this contiguous block 32 can divide into according to its function the socket part 322 that the articulated section 321 and being positioned at top is positioned at bottom, wherein, this articulated section 321 run through wear groove 311 after be hubbed in the pivot connected slot 21 of connecting rod 20.One collar 33 being sheathed on this socket part 322, this collar 33 center is formed with one for the perforation 331 of accommodating socket part 322, and its end face is formed with a series of annular tooth 332 being equipped in disk 31 bottom surface, makes the collar 33 cannot rotate relative to disk 31.The bottom of this collar 33 is stretched and is provided with one for installing the fixed axis 333 of mophead 40, and the periphery of this fixed axis 333 respectively radial direction is provided with multiple fin 334.One fixture 34 being fixed in contiguous block 32 bottom surface, this fixture 34 is axially arranged with a stud 341, and this stud 341 is locked in socket part 322, and so as to clamping mophead 40, the bottom surface of this fixture 34 is formed with a locating hole 342.Always fasten locking member 34 and be locked on the bolt 35 in socket part 322, after this bolt 35 packing fixture 34, can prevent this fixture 34 from getting loose from socket part 322.

The card central authorities of this mophead 40 are formed with a circular hole 41 run through for fixed axis 333, and this circular hole 41 periphery is formed with multiple caulking groove 411 for fin 334 blocking, makes mophead 40 cannot rotate relative to the collar 33, improve it and combine the stability with transmission.

Refer to Fig. 4 and Fig. 5, before after mophead 40 cleans up for operation of carrying out mopping floor, collar 18 release connection bar 20 can be unscrewed, utilize the spin function of mop of the present invention, utilize different dehydrated structures, dehydration basket 60 as shown in Figure 10 or the dehydration barrel 70 shown in Figure 11, then the centrifugal force produced when mophead 40 of arranging in pairs or groups rotates, reach the object of dehydration.When the moment of pressure outer tube 11, guide screw block 15 can first move towards the direction of mophead 40, taper perforation 152 is made to be engaged in tooth engaged 162 on taper flange 161 and Compress Spring 17, so continue again to press down outer tube 11, when guide screw block 15 moves relative to two dental laminas 12, namely can produce helical effect, and then drive connecting rod 20 to rotate, effect of dehydration can be reached.

Refer to Fig. 6, when guide screw block 15 top is pulled when the inner top surface of top bracing member 13, now guide screw block 15 departs from the guiding of dental lamina 12, lose spinfunction, namely this taper flange 161 departs from taper perforation 152 effect producing clutch because of the reset function of spring 17, make guide screw block 15 when reversing reset, can not produce with the driven member 16 in lasting rotating forward and interfere, this is utilized to be equivalent to the effect of clutch, the unilateral bearing of existing spin mop can be replaced, and overcome the shortcoming that usual unilateral bearing produces.

Refer to Fig. 7 and Fig. 8, in the second embodiment of mop of the present invention, this rotating driving device 10 comprises a guide screw block 51, and this guide screw block 51 periphery is formed with at least one line screw thread 511, and its bottom surface is then equiped with a clutch structure 52 with one heart.This clutch structure 52 comprises a rotating disk 521, and these rotating disk 521 central authorities stretch and are provided with one for being locked in the stud 522 of guide screw block 51, and the corresponding two ends of this rotating disk 521 are pivoted with a ratchet 523 respectively; One driven member 53 being installed in connecting rod 20 end face with one heart, the end face of this driven member 53 is formed with one for the shrinkage pool 531 of accommodating two ratchets 523 of level, and the periphery of this shrinkage pool 531 is formed with a series of ratchet 532.

Refer to Fig. 9, when the moment that guide screw block 51 rotates by the screw drives effect of dental lamina 12, these two ratchets 523 are outwards upheld because of the effect of its centrifugal force, and the ratchet 532 that pushing tow is corresponding, and then drive driven member 53 to rotate together with connecting rod 20, when guide screw block 51 top is pulled when the inner top surface of top bracing member 13, now guide screw block 51 departs from the guiding of dental lamina 12, lose spinfunction, and the ratchet 532 continued on the driven member 53 in rotation, can forward two ratchets 523 inwardly be pushed away and reach clutch effect, make guide screw block 51 when reversing reset relative to driven member 53, can not produce with the driven member 53 in lasting rotating forward and interfere.

The announcement of the above embodiment in order to the present invention to be described, and is not used to limit the present invention, therefore the change of numerical value or the displacement of equivalent elements must be subordinate to category of the present invention such as.

By describing in detail above, those skilled in the art can be made to understand, and the present invention can reach aforementioned object really, and is showed no similar delivering in similar processing procedure or product, the real regulation having met Patent Law, and all literary compositions propose patent application in accordance with the law.

Claims

1. A screw driving device, characterized in that, the screw driving device comprises:

An outer tube, the bottom end of the outer tube is coaxially provided with a bundle of tubes, and a ring-shaped shoulder is formed at the junction of the bundle tube and the outer tube; two pairs of convex ribs are longitudinally formed on the inner wall of the outer tube, and each A dovetail groove is formed between a pair of convex ribs, wherein a tooth plate with threads formed on the inner surface is inserted and clamped in each dovetail groove, and the threads on the two tooth plates form a continuous spiral correspondence, and are formed by limited by the annular shoulder;

The casing is arranged on the top end of the outer tube with a coaxial lock, and a hollow top support is fixed in the casing. The bottom edge of the top support is provided with a flange outward, and the flange is used to limit the the two dental plates;

A lead screw block sandwiched between the two tooth plates, a thread is formed on the surface of the lead screw block, and a spiral effect is produced when the lead screw block moves relative to the two tooth plates;

a connecting rod axially inserted in said outer tube; and

A follower fixed on the top of the connecting rod, the follower is selectively driven by the lead screw block and rotates together with the connecting rod.

2. The screw driving device according to claim 1, wherein a tapered tooth hole is formed in the center of the bottom surface of the lead screw block, and a concave hole is axially formed at the end of the tapered tooth hole; The follower is axially connected to the lead screw block, the follower ring is provided with a conical flange, and the upper ring of the conical flange is provided with a series of occlusal teeth, and the follower is extended to extend into the lead screw The slide bar of the block, the screw drive device also includes a set of springs arranged on the slide bar and accommodated in the concave hole, so that the lead screw block reciprocates relative to the slide bar, and at the same time makes the tapered tooth hole Selectively engages the snap teeth to rotate the follower.

3. The screw driving device according to claim 1, wherein the thread is formed on the periphery of the lead screw block, and a clutch structure is concentrically arranged on the bottom surface of the lead screw block; the clutch structure includes a turntable, the A stud for locking on the lead screw block extends from the center of the turntable, and a ratchet is pivotally arranged at the corresponding two ends of the turntable; the follower is concentrically fixed on the top surface of the connecting rod, and the slave A concave hole for horizontally accommodating the two ratchets is formed on the top surface of the moving part, and a series of ratchet teeth are formed on the periphery of the concave hole.

4. A mop, characterized in that the mop comprises:

A lead screw block sandwiched between two tooth plates, a screw thread is formed on the surface of the lead screw block, and a spiral effect is produced when the lead screw block moves relative to the two tooth plates;

a connecting rod axially inserted in said outer tube;

a follower fixed on the top of the connecting rod, the follower is selectively driven by the lead screw block and rotates together with the connecting rod; and

A mop head mounted on the free end of the connecting rod by means of connecting means.

5. The mop according to claim 4, wherein a tapered tooth hole is formed in the center of the bottom surface of the lead screw block, and a concave hole is axially formed at the end of the tapered tooth hole; The member is axially connected to the lead screw block, the follower ring is provided with a conical flange, and the upper ring of the conical flange is provided with a series of engaging teeth. Slide bar, the mop also includes a set of springs arranged on the slide bar and accommodated in the concave hole, so that the lead screw block makes reciprocating movement relative to the slide bar, and at the same time, the tapered tooth hole is selectively connected with the The meshing teeth engage, thereby turning the follower.

6. The mop according to claim 4, wherein the thread is formed on the periphery of the lead screw block, and a clutch structure is concentrically arranged on the bottom surface of the lead screw block; the clutch structure includes a rotating disk, and the center of the rotating disk A stud for locking on the lead screw block is extended, and a ratchet is respectively pivoted at the corresponding two ends of the turntable; the follower is fixed concentrically on the top surface of the connecting rod, and the follower A concave hole for horizontally accommodating two pawls is formed on the top surface of the concave hole, and a series of ratchets are formed on the periphery of the concave hole.

7. The mop according to claim 4, 5 or 6, wherein the bottom surface of the connecting rod is formed with a pivot groove along its diameter, and two clamping blocks are formed at the end thereof, and the two clamping blocks The line connecting the centers is perpendicular to the pivot slot.

8. The mop according to claim 7, wherein the connecting device comprises:

A disk, a through groove is formed along the first diameter of the disk, and a locking groove is formed along the second diameter of the disk, wherein the first diameter and the second diameter are perpendicular to each other, and when the two When the clamping block is clamped in the corresponding clamping slot, the connecting rod and the mop head form a vertical corresponding relationship;

A connecting block passing through the slot, the connecting block includes a pivoting portion at the top and a sleeve portion at the bottom, wherein the pivoting portion is pivotally arranged on the connecting portion after penetrating through the slot in the pivoting slot of the rod; and

A set of rings arranged on the socket part, the center of which is formed with a perforation for accommodating the socket part, and a series of annular teeth clamped on the bottom surface of the disc are formed on the top surface of the ring; the sleeve The bottom of the ring is extended with a fixed shaft for installing the mop head, and the periphery of the fixed shaft is respectively provided with a plurality of convex ribs in the radial direction; the mop also includes a fixing piece fixed on the bottom surface of the connecting block , the fixing member is provided with a stud in the axial direction, and the stud is locked in the sleeve part to clamp the mop head.

9. The mop according to claim 8, characterized in that, a round hole is formed in the center of the mop head's disc surface for the fixed shaft to pass through, and a plurality of ribs are formed on the periphery of the round hole. Bezel.

10. The mop according to claim 8, wherein a positioning hole is formed on the bottom surface of the fixing member; the mop further comprises a bolt passing through the fixing member and locked in the sleeve portion.

11. The mop according to claim 9, wherein a positioning hole is formed on the bottom surface of the fixing member; the mop further comprises a bolt that passes through the fixing member and is locked in the sleeve portion.