CN107712954B

CN107712954B - Potato cleaning machine

Info

Publication number: CN107712954B
Application number: CN201711288622.9A
Authority: CN
Inventors: 彭三河; 邢丹英
Original assignee: Yangtze University
Current assignee: Yangtze University
Priority date: 2017-12-07
Filing date: 2017-12-07
Publication date: 2020-06-23
Anticipated expiration: 2037-12-07
Also published as: CN107712954A

Abstract

The invention relates to a potato cleaning machine, and belongs to the technical field of potato cleaning equipment. This potato cleaning machine comprises driver, frame, basin, cleaning roller, feeder hopper, direction chute and collection basket: a cleaning roller is arranged in the water tank through a frame and a supporting roller; a pushing stranding cage is arranged in the cleaning roller; a feed hopper is arranged on the frame at one end of the pushing stranding cage; the lower end of the feed hopper extends into the cleaning roller; a guide chute and a collection basket are sequentially arranged on the rack below the other end of the push stranding cage; the guide chute is respectively connected with the cleaning roller and the collecting basket; a driver is arranged above the cleaning roller; the driver is respectively connected with the pushing stranding cage and the cleaning roller. The potato cleaning machine has simple structure and ingenious design; the potato cleaning machine can complete potato cleaning mechanically, and solves the problems of high labor intensity and low working efficiency existing in manual potato cleaning; the requirements of enterprises for production and use are met.

Description

Potato cleaning machine

Technical Field

The invention relates to a potato cleaning machine, and belongs to the technical field of potato cleaning equipment.

Background

Potatoes are commonly called as potatoes and potatoes, and are widely planted in the global range due to the characteristics of rich nutrition and relatively strong environmental adaptability; is now second only to corn and wheat in the third world food crop. Since the cultivation and cultivation of potatoes is carried out in soil, the surface of the crop is contaminated with a large amount of soil after harvesting. In order to guarantee the safety of potato processed food, the potatoes must be cleaned before being processed, and because the potatoes have the characteristics of different sizes and uneven surfaces, people still adopt a manual cleaning mode at present to complete the cleaning work of the potatoes, so that the problems of high labor intensity and low working efficiency exist, and the requirements of enterprises on production and use cannot be met.

Disclosure of Invention

The invention aims to: the potato cleaning machine is simple in structure and convenient to use, and solves the problems of high labor intensity and low working efficiency existing in the process of manually cleaning potatoes.

The technical scheme of the invention is as follows:

a potato cleaning machine is composed of a driver, a frame, a water tank, a cleaning roller, a feed hopper, a guide chute and a collecting basket; the method is characterized in that: a cleaning roller is arranged in the water tank through a frame and a supporting roller; a pushing stranding cage is arranged in the cleaning roller; a feed hopper is arranged on the frame at one end of the pushing stranding cage; the lower end of the feed hopper extends into the cleaning roller; a guide chute and a collection basket are sequentially arranged on the rack below the other end of the push stranding cage; the guide chute is respectively connected with the cleaning roller and the collecting basket; a driver is arranged above the cleaning roller; the driver is respectively connected with the pushing stranding cage and the cleaning roller.

The driver consists of a roller motor, a driving gear and an intermediate gear; a middle gear is fixedly arranged above the cleaning roller through a middle rotating shaft; a driving gear is arranged on the machine frame above the intermediate gear through a roller motor; the driving gear is meshed with the intermediate gear; the intermediate gear is meshed with a transmission gear ring arranged on the circumferential surface of the cleaning roller; one end of the middle rotating shaft is connected with the pushing hinge cage through a transmission chain.

The cleaning roller consists of a cleaning roller body, a transmission gear ring and cleaning bristles; cleaning bristles are uniformly distributed on the inner wall of the cleaning roller body; the circumferential surface of the cleaning roller body is provided with a transmission gear ring; the transmission gear ring is meshed with the intermediate gear; the circumferential surfaces of the cleaning roller bodies on the two sides of the transmission gear ring are respectively provided with a limiting ring groove, and the cleaning roller bodies are in rolling connection with the supporting rollers through the limiting ring grooves.

The pushing stranding cage consists of a stranding cage shaft and stranding cage blades; a twisting cage shaft is arranged below the center of the interior of the cleaning roller; two ends of the stranding cage shaft extend to the rack and are movably connected with the rack; one end of the hinge cage shaft is connected with the middle rotating shaft through a transmission chain; the stranding cage shaft is provided with stranding cage blades; the surface of the twisted cage blade is provided with cleaning bristles.

The cleaning bristles consist of long bristles and short bristles; the long bristles and the short bristles are arranged in a staggered manner.

The feed hopper consists of a feed hopper body, a chute, a transmission mechanism, a driving semi-ring and a driven semi-ring; a chute is arranged below the feed hopper body; the lower end of the chute extends into the cleaning roller; a driving semi-ring and a driven semi-ring are movably arranged between the feed hopper body and the chute; a transmission mechanism is arranged on the chute below the driving semi-ring; the transmission mechanism is movably connected with the driving semi-ring; a rotating rod is arranged on the feed hopper body above the end heads of each end of the driving semi-ring and the driven semi-ring through a rotating pin; two ends of the rotating rod are respectively and fixedly provided with a transmission pin; the driving semi-ring and the driven semi-ring below each transmission pin are respectively provided with a transmission slide hole; each transmission slide hole is respectively connected with the corresponding transmission pin in a sliding way.

The middle parts of the driving semi-ring and the driven semi-ring are respectively provided with a guide sliding hole; guide pins are fixedly arranged on the end faces of the slide pipes below the guide slide holes; each guide pin is connected with the corresponding guide sliding hole in a sliding manner.

The transmission mechanism consists of a transmission rod, an impact pin and a support spring; a driving plate is arranged on one side of the driving semi-ring; a slide pipe below the driving plate is hinged with a transmission rod through a supporting plate; the upper end of the transmission rod is provided with a long sliding hole; the long sliding hole is in sliding connection with a pin fixedly arranged on the driving plate; the transmission rod below the long sliding hole is connected with the chute through a support spring; an impact pin is movably inserted on the slide pipe at one side of the lower end of the transmission rod; the impact pin is in interference connection with the transmission rod.

The chute is movably provided with an impact pin through an assembling hole; the upper end surface of the impact pin is an inclined surface; be provided with spacing spout in the strikeing round pin, spacing spout and the spacing nail sliding connection who sets up in the pilot hole.

The invention has the advantages that:

the potato cleaning machine has simple structure and ingenious design; when the potato washing machine works, under the action of the pushing stranding cage, potatoes are washed by the pushing stranding cage and the washing bristles on the washing roller in the continuous overturning process; the potato cleaning machine can complete the potato cleaning operation in a mechanized manner, so that the problems of high labor intensity and low working efficiency existing in manual potato cleaning are solved; the requirements of enterprises for production and use are met.

Drawings

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

FIG. 2 is a schematic view of the structure of the cleaning roller of the present invention;

FIG. 3 is a schematic view of the feed hopper of the present invention;

FIG. 4 is an enlarged view of the structure at B in FIG. 3;

FIG. 5 is a schematic view of the structure A-A in FIG. 3;

FIG. 6 is an enlarged view of the structure at C in FIG. 5;

FIG. 7 is a schematic view of the driven half ring when impacted;

fig. 8 is an enlarged schematic view of the structure at D in fig. 7.

In the figure: 1. the cleaning device comprises a rack, 2, a water tank, 3, a cleaning roller, 4, a feed hopper, 5, a guide chute, 6, a collecting basket, 7, a roller motor, 8, a driving gear, 9, an intermediate gear, 10, an intermediate rotating shaft, 11, a transmission gear ring, 12, a transmission chain, 13, a cleaning roller body, 14, cleaning bristles, 15, a limit ring groove, 16, a supporting roller, 17, a stranding cage shaft, 18, a stranding cage blade, 19, a feed hopper body, 20, a chute, 21, a driving half ring, 22, a driven half ring, 23, a rotating pin, 24, a rotating rod, 25, a transmission pin, 26, a guide sliding hole, 27, a guide pin, 28, a guide sliding hole, 29, an impact pin, 30, a support spring, 31, a driving plate, 32, a supporting plate, 33, a transmission rod, 34, a long sliding hole, 35, a pin, 36, a limit sliding groove, 37 and a limit pin.

Detailed Description

This potato cleaning machine comprises driver, frame 1, basin 2, cleaning roller 3, feeder hopper 4, direction chute 5 and collection basket 6: the water tank 2 is communicated with an external water source; people can discharge the dirty clean water in the water tank 2; at the same time, new washing water is injected, thereby keeping the washing water in the water tub 2 clean.

A cleaning roller 3 is arranged in the water tank 2 through a frame 1 and a supporting roller 16; the cleaning roller consists of a cleaning roller body 13, a transmission gear ring 11 and cleaning bristles 14; the inner wall of the cleaning roller body 13 is evenly distributed with cleaning brush hairs 14.

The circumferential surface of the cleaning roller body 13 is provided with a transmission gear ring 11; the circumferential surfaces of the cleaning roller bodies 13 at two sides of the transmission gear ring 11 are respectively provided with a limiting ring groove 15, and the cleaning roller bodies 13 are in rolling connection with the supporting rollers 16 through the limiting ring grooves 15. The purpose of arranging the limiting ring groove 15 is as follows: so as to axially limit the cleaning roller 3 through the limit ring groove 15 and prevent the cleaning roller from moving in the axial direction.

A pushing stranding cage is arranged in the cleaning roller 3; the pushing stranding cage consists of a stranding cage shaft 17 and stranding cage blades 18; a twisting cage shaft 17 is arranged at the lower position of the center in the cleaning roller 3; the purpose of mounting the winch shaft 17 in this position is to: so that when the potatoes are pushed by the stranding cage blades 18 and are positioned at the lower part of the cleaning roller 3, the stranding cage blades 18 are contacted with the potatoes more tightly under the cooperation of the cleaning roller 3; and when the potatoes are located at the upper position of the washing drum 3; the leaves 18 of the stranding cage are in relatively loose contact with the potatoes under the coordination of the cleaning roller 3; therefore, under the pushing force of the stranding cage blades 18, in the process that the potatoes move from the lower position to the upper position of the cleaning roller 3, the potatoes enter a loose environment from a compact environment; at this moment, under the effect of 18 surperficial frictional forces on the hank cage blade, the upset can take place for the potato to make the potato in the operation process that moves forward, constantly take place the upset, and then make the potato wash more thoroughly, make it obtain better cleaning performance.

Two ends of the stranding cage shaft 17 extend to the rack 1 and are movably connected with the rack; a stranding cage blade 18 is arranged on the stranding cage shaft 17; the surface of the blade 18 of the stranding cage is provided with cleaning bristles 14 (not visible in the drawings of the specification), the purpose of which is to: firstly, the friction force on the surface of the stranding cage blade 18 is increased, so that the turning property of the potatoes is enhanced; secondly, the cleaning brush 14 can clean the potatoes in the process of pushing the potatoes by the stranding cage blades 18.

The cleaning bristles 14 on the twisted cage blades 18 and the cleaning bristles 14 in the cleaning roller 3 are both composed of flexible bristles; the purpose of so setting is: utilize the soft characteristic of flexible brush hair, make the potato extrusion of operation wash brush hair 14 in-process, wash brush hair 14 and can the pressurized deformation to make wash brush hair 14 can with the surperficial laminating contact of potato unevenness, and then make wash brush hair 14 can be with potato surface all sanitization, still avoided the emergence of washing brush hair 14 damage potato epidermis problem simultaneously.

The cleaning bristles 14 are composed of long bristles and short bristles; the long bristles and the short bristles are arranged in a staggered manner. The cleaning bristles 14 are arranged so as to: so that in the process of extruding and cleaning the brush bristles 14 by the potatoes, the long brush bristles can be well contacted with the concave parts of the potatoes, and the short brush bristles can be well contacted with the convex parts of the potatoes; thereby ensuring the consistent cleaning effect of the potato surface; the problem that when the lengths of the cleaning bristles 14 are consistent, the concave surface parts of the potatoes cannot be well contacted with the cleaning bristles 14, and the cleaning effect is inconsistent is solved.

A feed hopper 4 is arranged on the frame 1 at one end of the pushing stranding cage; the lower end of the feed hopper 4 extends into the cleaning roller 3; a guide chute 5 and a collection basket 6 are sequentially arranged on the frame 1 below the other end of the push stranding cage. The guide chute 5 is engaged with the washing drum 3 and the collection basket 6, respectively.

A driver is arranged above the cleaning roller 3. The driver consists of a roller motor 7, a driving gear 8 and an intermediate gear 9; an intermediate gear 9 is fixedly arranged above the cleaning roller 3 through an intermediate rotating shaft 10; a driving gear 8 is arranged on the machine frame above the intermediate gear 9 through a roller motor 7; the driving gear 8 is meshed with the intermediate gear 9; the intermediate gear 9 is meshed with a transmission gear ring 11 arranged on the circumferential surface of the cleaning roller 3; one end of the middle rotating shaft 10 is connected with a hinge cage shaft 17 through a transmission chain 12.

When the roller motor 7 works, the cleaning roller 3 can be driven to rotate by the driving gear 8 and the intermediate gear 9; meanwhile, the intermediate rotating shaft 10 can drive the pushing winch cage to rotate through the transmission chain 12.

As an improvement of the feed hopper 4 of the present invention; the feed hopper 4 consists of a feed hopper body 19, a chute 20, a transmission mechanism, a driving semi-ring 21 and a driven semi-ring 22; a chute 20 is arranged below the feed hopper body 19; the lower end of the chute 20 extends to the inside of the washing drum 3.

A driving half ring 21 and a driven half ring 22 are movably arranged between the feed hopper body 19 and the chute 20; the driving half ring 21 and the driven half ring 22 are made of rubber; the purpose of so setting is: the problem that the potatoes are bruised by the rubber material in the moving process is avoided by utilizing the soft characteristic of the rubber material.

The middle parts of the driving half ring 21 and the driven half ring 22 are respectively provided with a guide sliding hole 28; a guide pin 27 is fixedly arranged on the end surface of the chute 20 below each guide slide hole 28; each guide pin 27 is slidably connected to a corresponding guide slide hole 28. The guide pins 27 and the guide slide holes 28 are provided for the purpose of: so that the driving half ring 21 and the driven half ring 22 can move according to the track under the guidance of the guide sliding holes 28, thereby preventing the accident of deviating from the running track.

A transmission mechanism is arranged on the chute 20 below the driving semi-ring 21; the transmission mechanism consists of a transmission rod 33, an impact pin 29 and a support spring 30; one side of the driving semi-ring 21 is provided with a driving plate 31; a transmission rod 33 is hinged on the chute 20 below the driving plate 31 through a supporting plate 32; the upper end of the transmission rod 33 is provided with a long sliding hole 34; the long slide hole 34 is connected with a pin 35 fixedly arranged on the drive plate 31 in a sliding way; the transmission rod 33 below the long slide hole 35 is connected with the chute 20 through the stay spring 30; the slide pipe 20 at the lower end side of the transmission rod 33 is movably provided with an impact pin 29 in an assembling hole. The impact pin 29 is in interference connection with the transmission rod 33.

The upper end surface of the impact pin 29 is an inclined surface; the purpose of providing the upper end face of the impact pin 29 with an inclined surface is to: the impact pin 29 is impacted along the inclined plane when the potatoes fall in the chute 20, so that the problem that the impact pin 29 obstructs the falling of the potatoes when the end surface of the impact pin 29 is straight is avoided.

A limiting sliding groove 36 is formed in the impact pin 29, and the limiting sliding groove 36 is connected with a limiting nail 37 arranged in the assembling hole in a sliding mode. The purpose of so setting is: so that the impact pin 29 can move up and down under the guide of the limit nail 37, and the falling-off accident of the impact pin 29 is avoided.

A rotating rod 24 is arranged on the feed hopper body 19 above the end heads of each end of the driving semi-ring 21 and the driven semi-ring 22 through a rotating pin 23; two ends of the rotating rod 24 are respectively and fixedly provided with a transmission pin 25; the driving half ring 21 and the driven half ring 22 below each transmission pin 25 are respectively provided with a transmission slide hole 26; each driving slide hole 26 is slidably connected to a corresponding driving pin 25.

When the potato washing machine works, firstly, washing water is injected into the water tank 2, so that the washing water is kept in a state of submerging the washing roller 3; then, the roller motor 7 is started to drive the cleaning roller 3 to rotate through the driving gear 8 and the intermediate gear 9; meanwhile, the middle rotating shaft 10 drives the pushing winch cage to rotate through the transmission chain 12.

Then, unwashed potatoes are poured into the feed hopper body 19 and fall into the rotating cleaning roller 3 along the chute 20 under the action of the self gravity; at the moment, the potatoes move from one end of the cleaning roller 3 to the other end under the pushing action of the rotary pushing stranding cage; in the process, the cleaning bristles 14 in the cleaning roller 3 and the cleaning bristles 14 on the pushing stranding cage blades 18 clean soil on the surfaces of the potatoes; when the potato moves to the end of the washing drum 3, it will slide through the guide chute 5 into the collection basket 6. When the potatoes in the collecting basket 6 are fully piled, the collecting basket 6 is lifted out, the potatoes are taken out, and then the collecting basket 6 is put back; thus, the potato washing work is completed.

In the process, when the pushing speed of the pushing stranding cage is low and the blanking speed of the feeding hopper 4 is high, potatoes are stacked at the end of the pushing stranding cage to block subsequent potatoes in the chute 20, and when the pushing stranding cage conveys the stacked potatoes to the end, the potatoes in the feeding hopper 4 sequentially fall into the cleaning roller 3.

During the fall of the potatoes; the falling potatoes impact the impact pins 29 in the chute 20, and the impact pins 29 are impacted to move the downward pressing transmission rod 33; the transmission rod 33 is pressed and then rotates clockwise after overcoming the elastic force of the supporting spring 30, and in the rotating process of the transmission rod 33, the driving half ring 21 is driven to move rightwards through the long sliding hole 34, the pin 35 and the driving plate 31; the driving semi-ring 21 drives the rotating rod 24 to rotate clockwise through the transmission slide hole 26 and the transmission pin 25 in the process of moving rightwards; rotating rod 24 drives driven half collar 22 and driving half collar 21 to approach each other through driving pin 25 and driving slide hole 26 during clockwise rotation.

When the falling potatoes are separated from the contact with the impact pin 29, the transmission rod 33 is reset anticlockwise under the action of the elastic force of the supporting spring 30, the transmission rod 33 drives the impact pin 29, the driving half ring 21 and the driven half ring 22 to reset in the resetting process, and the driving half ring 21 and the driven half ring 22 are separated from each other; so when the continuous impact of the potato of whereabouts strikes round pin 29, continuous repeated above-mentioned action of drive mechanism, driven semi-ring 22 and initiative semi-ring 21 to make driven semi-ring 22 and the action of initiative semi-ring 21 constantly repeated each other drawing close and separating, and then the mode that the circulation passageway through between feeder hopper body 19 and elephant trunk 20 constantly changes reaches the risk that reduces feeder hopper 4 and block up.

The potato cleaning machine has simple structure and ingenious design; the potato cleaning machine can complete potato cleaning mechanically, and solves the problems of high labor intensity and low working efficiency existing in manual potato cleaning; the requirements of enterprises for production and use are met.

Claims

1. A potato cleaning machine is composed of a driver, a frame (1), a water tank (2), a cleaning roller (3), a feed hopper (4), a guide chute (5) and a collecting basket (6); a cleaning roller (3) is arranged in the water tank (2) through the frame (1) and the supporting roller (16); a pushing stranding cage is arranged in the cleaning roller (3); a feed hopper (4) is arranged on the frame (1) at one end of the push stranding cage; the lower end of the feed hopper (4) extends into the cleaning roller (3); a guide chute (5) and a collection basket (6) are sequentially arranged on the rack (1) below the other end of the push stranding cage; the guide chute (5) is respectively connected with the cleaning roller (3) and the collecting basket (6); a driver is arranged above the cleaning roller (3); the driver is respectively connected with the pushing stranding cage and the cleaning roller and consists of a roller motor (7), a driving gear (8) and an intermediate gear (9); an intermediate gear (9) is fixedly arranged above the cleaning roller (3) through an intermediate rotating shaft (10); a driving gear (8) is arranged on the rack (1) above the intermediate gear (9) through a roller motor (7); the driving gear (8) is meshed with the intermediate gear (9); the intermediate gear (9) is meshed with a transmission gear ring (11) arranged on the circumferential surface of the cleaning roller (3); one end of the middle rotating shaft (10) is connected with the pushing winch cage through a transmission chain (12); the method is characterized in that: the feed hopper (4) consists of a feed hopper body (19), a chute (20), a transmission mechanism, a driving semi-ring (21) and a driven semi-ring (22); a chute (20) is arranged below the feed hopper body (19); the lower end of the chute (20) extends into the cleaning roller (3); a driving semi-ring (21) and a driven semi-ring (22) are movably arranged between the feed hopper body (19) and the chute (20); a rotating rod (24) is arranged on the feed hopper body (19) above the end heads of each end of the driving semi-ring (21) and the driven semi-ring (22) through a rotating pin (23); two ends of the rotating rod (24) are respectively and fixedly provided with a transmission pin (25); a driving semi-ring (21) and a driven semi-ring (22) below each driving pin (25) are respectively provided with a driving slide hole (26); each transmission slide hole (26) is respectively connected with the corresponding transmission pin (25) in a sliding way; the middle parts of the driving half ring (21) and the driven half ring (22) are respectively provided with a guide sliding hole (28); guide pins (27) are fixedly arranged on the end surface of the chute (20) below each guide slide hole (28); each guide pin (27) is connected with the corresponding guide sliding hole (28) in a sliding way; a transmission mechanism is arranged on the chute (20) below the driving semi-ring (21); the transmission mechanism consists of a transmission rod (33), an impact pin (29) and a support spring (30); a driving plate (31) is arranged on one side of the driving semi-ring (21); a transmission rod (33) is hinged on the chute (20) below the driving plate (31) through a supporting plate (32); the upper end of the transmission rod (33) is provided with a long sliding hole (34); the long sliding hole (34) is in sliding connection with a pin (35) fixedly arranged on the driving plate (31); a transmission rod (33) below the long sliding hole (34) is connected with the chute (20) through a support spring (30); an impact pin (29) is movably inserted on the slide pipe (20) at one side of the lower end of the transmission rod (33); the upper end surface of the impact pin (29) is an inclined surface; a limiting sliding groove (36) is arranged in the impact pin (29), and the limiting sliding groove (36) is in sliding connection with a limiting nail (37) arranged in the assembling hole; the impact pin (29) is in interference connection with the transmission rod (33); the pushing stranding cage is composed of a stranding cage shaft (17) and stranding cage blades (18); a twisting cage shaft (17) is arranged at the lower position of the center in the cleaning roller (3); two ends of the stranding cage shaft (17) extend to the rack (1) and are movably connected with the rack; one end of the hinge cage shaft (17) is connected with the middle rotating shaft (10) through a transmission chain (12); a stranding cage blade (18) is arranged on the stranding cage shaft (17); cleaning bristles (14) are arranged on the surface of the stranding cage blade (18); when the potato washing machine works, firstly, washing water is injected into the water tank (2) to keep the washing water in a state of submerging the washing roller (3); then, a roller motor (7) is started to drive the cleaning roller (3) to rotate through a driving gear (8) and an intermediate gear (9); meanwhile, the middle rotating shaft (10) drives the pushing winch cage to rotate through the transmission chain (12); in the process of pushing the potatoes, when the potatoes are positioned at the lower part of the cleaning roller (3), the stranding cage blades (18) are contacted with the potatoes more tightly under the cooperation of the cleaning roller (3); and when the potatoes are in the upper position of the washing roller (3); the leaves (18) of the stranding cage are in relatively loose contact with the potatoes under the coordination of the cleaning roller (3); therefore, under the action of the pushing force of the stranding cage blades (18), the potatoes enter a loose environment from a compact environment in the process of moving from the lower position to the upper position of the cleaning roller (3); at the moment, the potatoes can be overturned under the action of the surface friction force of the winch blades (18), so that the potatoes are overturned continuously in the forward running process.

2. The potato washing machine of claim 1, wherein: the cleaning roller is composed of a cleaning roller body (13), a transmission gear ring (11) and cleaning bristles (14); cleaning bristles (14) are uniformly distributed on the inner wall of the cleaning roller body (13); a transmission gear ring (11) is arranged on the circumferential surface of the cleaning roller body (13); the transmission gear ring (11) is meshed with the intermediate gear (9); the circumferential surfaces of the cleaning roller bodies (13) on the two sides of the transmission gear ring (11) are respectively provided with a limiting ring groove (15), and the cleaning roller bodies (13) are in rolling connection with the supporting rollers (16) through the limiting ring grooves (15).

3. A potato washing machine according to claim 2, wherein: the cleaning bristles (14) are composed of long bristles and short bristles; the long bristles and the short bristles are arranged in a staggered manner.