CN215756752U

CN215756752U - Scrubbing device for hydraulic engineering

Info

Publication number: CN215756752U
Application number: CN202122539879.5U
Authority: CN
Inventors: 郭泰来
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-02-08
Anticipated expiration: 2031-10-21

Abstract

A decontamination device for hydraulic engineering comprises a machine body, a support column, a handle and a counterweight ball, wherein a rope storage device is arranged at the rear end of the top of the support plate, a hand wheel is arranged in the middle of the back surface of a first shell, the hand wheel enables a first driven wheel to drive a rotating shaft to drive a winding roller to rotate through a driving mechanism, so that the winding roller stores ropes through grooves, the damage caused by poor rope storage is prevented, the device is convenient to use and simple to operate, the working efficiency is effectively improved, the driving mechanism is arranged at the right end inside the first shell, a second belt drives a pinion to rotate through a second driven wheel, the second driving wheel drives the first driven wheel to drive the rotating shaft to rotate through the first belt, the inconvenience in use is prevented, a dismounting mechanism is arranged at the right end inside a filter screen, a pull ring is pulled to drive a slide block to drive a nylon rope to move, and a clamping block of the nylon rope is separated from the inner side surface of the machine body, the filter screen is prevented from being detached relatively trouble.

Description

Scrubbing device for hydraulic engineering

Technical Field

The utility model relates to the technical field of hydraulic engineering, in particular to a decontamination device for hydraulic engineering.

Background

Hydraulic engineering is the surface water and the groundwater that are used for controlling and allotment nature, reach the earth's surface water and the groundwater of harmfully having the benefit purpose and the engineering of building, also called water engineering, water is the essential valuable resource of mankind's production and life, but its naturally existing state does not accord with mankind's needs completely, only build hydraulic engineering, just can control rivers, prevent flood disasters, and carry out the regulation and the distribution of water yield, in order to satisfy people's life and production to the needs of water resource, need use the scrubbing device for hydraulic engineering in hydraulic engineering construction process.

But scrubbing device for hydraulic engineering generally is that sewage gets into from organism front end, filter large particulate matter through the filter screen, activated carbon layer filters little particulate matter, large particulate matter spreads into the dustbin through the treatment trough, little particulate matter adsorbs in the adsorption tank, filter at last through the filter screen that goes out, but traditional scrubbing device for hydraulic engineering is to the rope effect relatively poor of accomodating, the rope is binded at the organism outside at will in the use, lead to the rope to receive the unable normal use of damage easily, and traditional scrubbing device for hydraulic engineering is relatively poor to pivot drive effect, lead to using inconveniently, while traditional scrubbing device for hydraulic engineering is to filter screen dismantlement effect relatively poor, lead to influencing work efficiency.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome prior art not enough, the scrubbing device for hydraulic engineering is provided at present, it is relatively poor to the rope storage effect to have solved traditional scrubbing device for hydraulic engineering, the rope is binded at the organism outside at will in the use, lead to the rope to receive the unable normal use of damage easily, and traditional scrubbing device for hydraulic engineering is relatively poor to pivot drive effect, lead to using inconveniently, traditional scrubbing device for hydraulic engineering is relatively poor to the filter screen dismantlement effect simultaneously, lead to influencing work efficiency's problem.

(II) technical scheme

The utility model is realized by the following technical scheme: the utility model provides a decontamination device for hydraulic engineering, which comprises a machine body, wherein support columns are fixed at four ends of the top of the machine body, first springs are sleeved on the outer surfaces of the support columns, a support plate is arranged at the top of each support column, a filter screen is arranged at the front end in the machine body, a rope storage device is arranged at the rear end of the top of each support plate, a dismounting mechanism is arranged at the right end in the filter screen, each rope storage device comprises a first shell, a hand wheel, a locking piece, an installation plate, a winding roller, a groove, a fixing plate, a first driving wheel, a driving mechanism, a first driven wheel, a first belt and a rotating shaft, the hand wheel is arranged in the middle of the back of the first shell, the locking piece is arranged at the front end of the hand wheel, the installation plate is fixedly connected with the left end surface of the front end of the first shell, the winding roller is arranged on the inner side surface of the installation plate, the grooves are embedded in the outer surfaces of the winding roller at equal intervals, the utility model discloses a wire winding roller, including fixed plate and first casing, first action wheel, fixed plate, first belt, pivot, first driven wheel, fixed plate and first casing, middle part fixed connection in fixed plate and the first casing, first action wheel is connected with fixed plate back upper end, the inside right-hand member of first casing is provided with actuating mechanism, first from the left lower extreme fixed connection in the driving wheel and the first casing, first belt twines in first from the driving wheel surface, the pivot runs through in first from the driving wheel middle part to the pivot is connected with the preceding terminal surface of hand wheel, the pivot runs through in winding roller middle part, first casing and backup pad top rear end fixed connection.

Further, backup pad top front end equidistance is fixed with the handle, organism bottom middle part is provided with the counter weight ball, the inside front end embedding of organism has the treatment trough, the treatment trough front end is provided with the through-hole, bottom of the body front end is provided with the dustbin to the dustbin is link up the structure with the through-hole, the middle part is provided with the activated carbon layer in the organism, activated carbon layer surface embedding has the adsorption tank, organism right-hand member equidistance embedding has a water filter screen.

Further, actuating mechanism includes that the second is from driving wheel, second belt, pinion, gear wheel and second action wheel, the second has the second belt from the winding of driving wheel surface, pinion and second are connected from driving wheel front end face middle part, gear wheel and pinion surface intermeshing, the second action wheel links to each other with the gear wheel back, second belt and first action wheel surface sliding connection, second action wheel and first belt medial surface right-hand member sliding connection.

Further, the detaching mechanism comprises a second shell, a pull ring, a second spring, a sliding block, a guide rod, a nylon rope, a guide wheel, a clamping block, a telescopic rod and a small spring, the pull ring is arranged at the top of the second shell, the second spring is sleeved at the lower end of the outer surface of the pull ring, the sliding block is fixedly connected with the bottom of the pull ring, the guide rod is fixedly connected with the inner upper end of the second shell, the sliding block is slidably connected with the outer surface of the guide rod, the nylon rope is fixedly connected with the bottom of the sliding block, the guide wheel is slidably connected with the outer surface of the nylon rope, the clamping block is fixedly connected with the left end of the nylon rope, the telescopic rod is fixedly connected with the right end of the clamping block, the small spring is sleeved on the outer surface of the telescopic rod, the second shell is fixedly connected with the inner right end of the filter screen, and the clamping block is clamped with the inner right end of the machine body.

Furthermore, the diameter of the hand wheel is set to be 10 cm, and a layer of anti-skid grains is arranged on the outer surface of the hand wheel.

Further, the length of the locking piece is set to be 8 cm, and the locking piece is fixedly connected with the middle part of the back of the first shell through a bolt.

Further, the diameter of the pinion is set to be 3 cm, and the ratio of the diameter of the pinion to the diameter of the bull gear is 1: 2.

furthermore, the outer surface of the guide rod is a smooth plane, and the sliding distance of the sliding block on the outer surface of the guide rod is 0-5 cm.

Further, the second spring is set to be 4 cm in length, and the force which can be provided by the second spring is 4N.

Further, the winding roller is made of rubber.

Further, the machine body is made of stainless steel.

(III) advantageous effects

Compared with the prior art, the utility model has the following beneficial effects:

1) for solving the relatively poor problem of effect is accomodate to the rope to traditional scrubbing device for hydraulic engineering, through having set up rope storage device in backup pad top rear end, there is the hand wheel at first casing back mid-mounting, the hand wheel drives actuating mechanism through first action wheel and rotates, actuating mechanism drives pivot drive winding roller through first follow driving wheel and rotates, make the winding roller accomodate the rope through the recess, prevent that the rope from accomodating relatively poorly leading to damaging, this device convenient to use easy operation, work efficiency has been improved effectively.

2) For solving the relatively poor problem of traditional scrubbing device for hydraulic engineering to pivot drive effect, through having set up actuating mechanism at the inside right-hand member of first casing, the second belt passes through the second and drives pinion rotation from the driving wheel, and the pinion drives the second action wheel through the gear wheel and rotates, and the second action wheel drives first driven wheel drive pivot through first belt and rotates, prevents to use inconveniently.

3) For solving the relatively poor problem of traditional scrubbing device for hydraulic engineering to filter screen dismantlement effect, through having set up detaching mechanism at the inside right-hand member of filter screen, the pulling pull ring makes the slider drive the nylon rope and slides at the leading wheel surface, and the nylon rope drives fixture block and organism inside flank phase separation, prevents that the filter screen from dismantling comparatively trouble.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a side cross-sectional structural schematic view of the present invention;

fig. 3 is a schematic view of the rope storage device of the present invention;

fig. 4 is a partial front cross-sectional structural schematic view of the cord storage apparatus of the present invention;

FIG. 5 is a partial front cross-sectional structural schematic view of the drive mechanism of the present invention;

fig. 6 is a front sectional structural schematic view of the detaching mechanism of the present invention.

In the figure: a machine body-1, a support column-2, a first spring-3, a support plate-4, a handle-5, a rope storage device-6, a counterweight ball-7, a filter screen-8, a dismounting mechanism-9, a treatment tank-10, a through hole-11, a garbage can-12, an activated carbon layer-13, an adsorption tank-14, a water outlet filter screen-15, a first shell-61, a hand wheel-62, a locking member-63, a mounting plate-64, a winding roller-65, a groove-66, a fixing plate-67, a first driving wheel-68, a driving mechanism-69, a first driven wheel-610, a first belt-611, a rotating shaft-612, a second driven wheel-691, a second belt-692, a pinion-693, a bull gear-694, A second driving wheel-695, a second shell-91, a pull ring-92, a second spring-93, a slide block-94, a guide rod-95, a nylon rope-96, a guide wheel-97, a fixture block-98, a telescopic rod-99 and a small spring-910.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1 and 2, the utility model provides a hydraulic engineering decontamination device by improvement, which comprises a machine body 1, wherein support columns 2 are fixed at four ends of the top of the machine body 1, the machine body 1 is made of stainless steel and has the advantage of longer service life, a first spring 3 is sleeved on the outer surface of each support column 2, a support plate 4 is arranged at the top of each support column 2, a filter screen 8 is arranged at the front end inside the machine body 1, a rope containing device 6 is arranged at the rear end of the top of each support plate 4, a dismounting mechanism 9 is arranged at the right end inside the filter screen 8, handles 5 are fixed at the front end of the top of each support plate 4 at equal intervals, a counterweight ball 7 is arranged in the middle of the bottom end of the machine body 1, a treatment tank 10 is embedded in the front end inside the machine body 1, a through hole 11 is arranged at the front end of the treatment tank 10, a garbage can 12 is arranged at the front end of the bottom of the machine body 1, the garbage can 12 is in a through structure with the through hole 11, an activated carbon layer 13 is arranged in the middle of the machine body 1, the outer surface of the active carbon layer 13 is embedded with an adsorption groove 14, and the right end of the machine body 1 is embedded with a water outlet filter screen 15 at equal intervals.

Referring to fig. 3 and 4, the utility model provides a decontamination device for hydraulic engineering by improvement, a rope storage device 6 includes a first housing 61, a hand wheel 62, a locking member 63, a mounting plate 64, a winding roller 65, a groove 66, a fixing plate 67, a first driving wheel 68, a driving mechanism 69, a first driven wheel 610, a first belt 611 and a rotating shaft 612, the hand wheel 62 is disposed in the middle of the back of the first housing 61, the diameter of the hand wheel 62 is set to 10 cm, a layer of anti-slip texture is disposed on the outer surface of the hand wheel 62 to prevent the occurrence of hand slip in the using process, the locking member 63 is mounted at the front end of the hand wheel 62, the length of the locking member 63 is set to 8 cm, the locking member 63 is fixedly connected with the middle of the back of the first housing 61 through a bolt to better lock the rotating shaft 612, the mounting plate 64 is fixedly connected with the left end of the front end of the first housing 61 to better fixedly mount the mounting plate 64, the winding roller 65 is arranged on the inner side surface of the mounting plate 64, the winding roller 65 is made of rubber and has the advantage of stronger insulativity, so that the winding roller 65 can be better and fixedly mounted, the grooves 66 are embedded in the outer surface of the winding roller 65 at equal intervals, so that the grooves 66 can be better and fixedly mounted, the fixing plate 67 is fixedly connected with the middle part in the first shell 61, so that the fixing plate 67 can be better and fixedly mounted, the first driving wheel 68 is connected with the upper end of the back surface of the fixing plate 67, so that the first driving wheel 68 can be better and fixedly mounted, the driving mechanism 69 is arranged at the right end in the first shell 61, so that the driving mechanism 69 can be better and fixedly mounted, the first driven wheel 610 is fixedly connected with the left lower end in the first shell 61, so that the first driven wheel 610 can be better and fixedly mounted, the first belt 611 is wound on the outer surface of the first driven wheel 610, so as to better fixedly install the first belt 611, the rotating shaft 612 penetrates through the middle of the first driven wheel 610, and the rotating shaft 612 is connected with the front end face of the hand wheel 62, so as to better fixedly install the rotating shaft 612, the rotating shaft 612 penetrates through the middle of the winding roller 65, and the first shell 61 is fixedly connected with the rear end of the top of the supporting plate 4.

Referring to fig. 5, the present invention provides a hydraulic engineering decontamination device by improving, the driving mechanism 69 includes a second driven wheel 691, a second belt 692, a pinion 693, a bull gear 694 and a second driving wheel 695, the second belt 692 is wound around the outer surface of the second driven wheel 691 to facilitate better fixing and mounting of the second belt 692, the pinion 693 is connected with the middle portion of the front end surface of the second driven wheel 691, the diameter of the pinion 693 is set to 3 cm, and the ratio of the diameter of the pinion 693 to the diameter of the bull gear 694 is 1: 2, so that the small gear 693 can drive the large gear 694 to rotate better, the large gear 694 is meshed with the outer surface of the small gear 693, so that the large gear 694 can be fixedly mounted better, the second driving wheel 695 is connected with the back of the large gear 694, so that the second driving wheel 695 can be fixedly mounted better, the second belt 692 is in sliding connection with the outer surface of the first driving wheel 68, and the second driving wheel 695 is in sliding connection with the right end of the inner side surface of the first belt 611.

Referring to fig. 6, the present invention provides a hydraulic engineering decontamination device by improvement, wherein the detaching mechanism 9 includes a second housing 91, a pull ring 92, a second spring 93, a slider 94, a guide rod 95, a nylon rope 96, a guide wheel 97, a fixture block 98, a telescopic rod 99 and a small spring 910, the pull ring 92 is disposed on the top of the second housing 91 to better fix and mount the pull ring 92, the second spring 93 is sleeved on the lower end of the outer surface of the pull ring 92, the length of the second spring 93 is set to 4 cm, the force provided by the second spring 93 is 4N to achieve a better reset effect, the slider 94 is fixedly connected with the bottom of the pull ring 92 to better fix and mount the slider 94, the guide rod 95 is fixedly connected with the inner upper end of the second housing 91, the slider 94 is slidably connected with the outer surface of the guide rod 95, the outer surface of the guide rod 95 is a smooth plane, the sliding distance of the sliding block 94 on the outer surface of the guide rod 95 is 0-5 cm, so that the sliding block 94 can better slide on the outer surface of the guide rod 95, the nylon rope 96 is fixedly connected with the bottom of the sliding block 94, so that the nylon rope 96 can be better fixedly installed, the guide wheel 97 is slidably connected with the outer surface of the nylon rope 96, so that the guide wheel 97 can be better fixedly installed, the fixture block 98 is fixedly connected with the left end of the nylon rope 96, so that the fixture block 98 can be better fixedly installed, the telescopic rod 99 is fixedly connected with the right end of the fixture block 98, so that the telescopic rod 99 can be better fixedly installed, the small spring 910 is sleeved on the outer surface of the telescopic rod 99, so that the small spring 910 can be better fixedly installed, the second shell 91 is fixedly connected with the right end inside the filter screen 8, and the fixture block 98 is clamped with the right end inside the machine body 1.

The winding roller 65 described in this patent is made of a rubber material, which is a high-elasticity polymer material having reversible deformation, is rich in elasticity at room temperature, can generate large deformation under the action of a small external force, and can recover to the original shape after the external force is removed, the rubber belongs to a completely amorphous polymer, the glass transition temperature (Tg) of the rubber is low, the molecular weight is often very large and is more than hundreds of thousands, the rubber is divided into two types, namely natural rubber and synthetic rubber, and the natural rubber is prepared by extracting colloid from plants such as rubber trees, rubber grasses and the like and then processing the colloid; synthetic rubbers are obtained by polymerization of various monomers.

The utility model discloses a decontamination device for hydraulic engineering, which has the following working principle:

firstly, the device is moved to a place to be used, then the machine body 1 is placed in water, and the machine body 1 is brought into deep water by the weight of the counterweight ball 7;

secondly, sewage enters from the front end of the machine body 1, large granular substances are filtered through the filter screen 8, small granular substances are filtered through the activated carbon layer 13, the sewage is finally filtered through the water outlet filter screen 15, the large granular substances are conveyed into the garbage can 12 through the treatment tank 10, and the small granular substances are adsorbed in the adsorption tank 14, so that the effect of removing the dirt of the hydraulic engineering is achieved;

thirdly, when the rope needs to be stored, the rotation state of the hand wheel 62 is recovered through the locking piece 63, the hand wheel 62 is rotated clockwise, the hand wheel 62 drives the first driving wheel 68 to rotate, the first driving wheel 68 is in transmission with the second driven wheel 691 through the second belt 692, the second driven wheel 691 drives the pinion 693 to rotate, the pinion 693 drives the large gear 694 to rotate, the large gear 694 drives the second driving wheel 695 to rotate, the second driving wheel 695 is in transmission connection with the first driven wheel 610 through the first belt 611, the first driven wheel 610 drives the rotating shaft 612 to rotate, the rotating shaft 612 drives the winding roller 65 to rotate, the winding roller 65 drives the groove 66 to synchronously rotate, and the winding roller 65 stores the rope through the groove 66;

fourthly, when the filter screen 8 needs to be detached, the pull ring 92 is pulled, the pull ring 92 drives the sliding block 94 to slide on the outer surface of the guide rod 95, the sliding block 94 drives the nylon rope 96 to slide on the outer surface of the guide wheel 97, the nylon rope 96 drives the fixture block 98 to move, the fixture block 98 is separated from the inside of the machine body 1 and is accommodated in the second shell 91, and the filter screen 8 is pulled out of the machine body 1;

fifthly, after the device is used, the machine body 1 is pulled out from the water through the rope, the dustbin 12 is detached from the machine body 1, the dustbin 12 is cleaned, and finally, the machine body 1 is fixed on a ship through the rope and the handle 5.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described, and the standard parts used in the present invention are all available on the market, the special-shaped parts can be customized according to the description and the accompanying drawings, the specific connection mode of each part adopts the conventional means of bolt and rivet, welding and the like mature in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, and the details are not described herein.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A decontamination device for hydraulic engineering comprises a machine body (1), wherein support columns (2) are fixed at four ends of the top of the machine body (1), first springs (3) are sleeved on the outer surfaces of the support columns (2), a support plate (4) is arranged at the top of each support column (2), and a filter screen (8) is arranged at the front end inside the machine body (1);

the method is characterized in that: the rope winding device is characterized by further comprising a rope storage device (6) and a dismounting mechanism (9), the rope storage device (6) is arranged at the rear end of the top of the support plate (4), the dismounting mechanism (9) is arranged at the right end inside the filter screen (8), the rope storage device (6) comprises a first shell (61), a hand wheel (62), a locking piece (63), a mounting plate (64), a winding roller (65), a groove (66), a fixing plate (67), a first driving wheel (68), a driving mechanism (69), a first driven wheel (610), a first belt (611) and a rotating shaft (612), the hand wheel (62) is arranged in the middle of the back of the first shell (61), the locking piece (63) is mounted at the front end of the hand wheel (62), the mounting plate (64) is fixedly connected with the left end face of the front end of the first shell (61), and the winding roller (65) is mounted on the inner side face of the mounting plate (64), recess (66) equidistance is embedded in wire winding roller (65) surface, middle part fixed connection in fixed plate (67) and first casing (61), first action wheel (68) are connected with fixed plate (67) back upper end, the inside right-hand member of first casing (61) is provided with actuating mechanism (69), first follow driving wheel (610) and the inside left lower extreme fixed connection of first casing (61), first belt (611) twine in first follow driving wheel (610) surface, pivot (612) run through in first follow driving wheel (610) middle part to pivot (612) are connected with hand wheel (62) front end face, pivot (612) run through in wire winding roller (65) middle part, first casing (61) and backup pad (4) top rear end fixed connection.

2. The scrubbing device of claim 1, wherein: backup pad (4) top front end equidistance is fixed with handle (5), organism (1) bottom middle part is provided with counterweight ball (7), the embedding of organism (1) inside front end has treatment tank (10), treatment tank (10) front end is provided with through-hole (11), organism (1) bottom front end is provided with dustbin (12) to dustbin (12) are link up structure with through-hole (11), the middle part is provided with activated carbon layer (13) in organism (1), activated carbon layer (13) surface embedding has adsorption tank (14), the embedding of organism (1) right-hand member equidistance has a water filter screen (15).

3. The scrubbing device of claim 1, wherein: the driving mechanism (69) comprises a second driven wheel (691), a second belt (692), a pinion (693), a large gear (694) and a second driving wheel (695), wherein the second belt (692) is wound on the outer surface of the second driven wheel (691), the pinion (693) is connected with the middle part of the front end face of the second driven wheel (691), the large gear (694) is meshed with the outer surface of the pinion (693), the second driving wheel (695) is connected with the back face of the large gear (694), the second belt (692) is connected with the outer surface of the first driving wheel (68) in a sliding mode, and the second driving wheel (695) is connected with the right end of the inner side face of the first belt (611) in a sliding mode.

4. The scrubbing device of claim 1, wherein: the disassembling mechanism (9) comprises a second shell (91), a pull ring (92), a second spring (93), a sliding block (94), a guide rod (95), a nylon rope (96), a guide wheel (97), a clamping block (98), an expansion rod (99) and a small spring (910), the pull ring (92) is arranged at the top of the second shell (91), the second spring (93) is sleeved at the lower end of the outer surface of the pull ring (92), the sliding block (94) is fixedly connected with the bottom of the pull ring (92), the guide rod (95) is fixedly connected with the upper end inside the second shell (91), the sliding block (94) is slidably connected with the outer surface of the guide rod (95), the nylon rope (96) is fixedly connected with the bottom of the sliding block (94), the guide wheel (97) is slidably connected with the outer surface of the nylon rope (96), the clamping block (98) is fixedly connected with the left end of the nylon rope (96), and the expansion rod (99) is fixedly connected with the right end of the clamping block (98), little spring (910) cup joint in telescopic link (99) surface, second casing (91) and the inside right-hand member fixed connection of filter screen (8), fixture block (98) and the inside right-hand member joint of organism (1).

5. The scrubbing device of claim 1, wherein: the diameter of the hand wheel (62) is set to be 10 cm, and a layer of anti-skid grains are arranged on the outer surface of the hand wheel (62).

6. The scrubbing device of claim 1, wherein: the length of the locking piece (63) is set to be 8 cm, and the locking piece (63) is fixedly connected with the middle part of the back of the first shell (61) through a bolt.

7. The scrubbing device of claim 3, wherein: the diameter of the small gear (693) is set to be 3 cm, and the ratio of the diameter of the small gear (693) to the diameter of the big gear (694) is 1: 2.

8. the scrubbing device of claim 4, wherein: the outer surface of the guide rod (95) is a smooth plane, and the sliding distance of the sliding block (94) on the outer surface of the guide rod (95) is 0-5 cm.

9. The scrubbing device of claim 4, wherein: the second spring (93) is set to be 4 cm in length, and the force that the second spring (93) can provide is 4N.