CN211130924U

CN211130924U - Dish washing machine

Info

Publication number: CN211130924U
Application number: CN201921129286.8U
Authority: CN
Inventors: 王盛; 陈瑜
Original assignee: Hunan Xishuashua Intelligent Cleaning Equipment Co ltd
Current assignee: Hunan Xishuashua Intelligent Cleaning Equipment Co ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-07-31
Anticipated expiration: 2029-07-17

Abstract

The utility model discloses a dish washing machine, include the frame and set up the conveyer in the frame, belt cleaning device and arrange the sediment device, conveyer is used for transporting the tableware, belt cleaning device includes that a plurality of that sets gradually along conveyer's direction of delivery sprays the mechanism, it includes the shower to spray the mechanism, inlet tube and top are held the mechanism and are set up in the frame, the one end of shower is pegged graft in the inlet tube and is linked together with the inner chamber of inlet tube, the top is held the mechanism top and is held the other end in the shower and make the shower hug closely in the inlet tube, arrange the sediment device and set up in conveyer's below, arrange the sediment device and include that a plurality of is the filter. The utility model discloses a dish washer has the advantage that slagging-off and cleaning performance are good, sealing performance is high, easy dismounting, filter effect are good and long service life.

Description

Dish washing machine

Technical Field

The utility model belongs to the technical field of tableware cleaning equipment, concretely relates to dish washer.

Background

Along with the acceleration of people's life rhythm, more and more people select to eat outside, when bringing plentiful income for hotel and restaurant, hotel and restaurant also face the increase day by day of recruitment cost and consumer to the cleanliness and the improvement of security requirement of dinnerware, then automatic equipment of washing dishes appears thereupon, current automatic dish washer includes the frame, set up purge chamber and the shower in the frame, the water jet of shower is towards the tableware of waiting to wash in the purge chamber, the purge chamber below is provided with the filter screen, shower spun washing water washs the tableware, residue and the residual water after the washing pass through the filter screen and filter, the residue remains on the filter screen. However, the existing automatic dish washer has some disadvantages: a. the existing dish washer is generally provided with a plurality of spray pipes to intensively wash tableware, so that the washing effect is poor and water resources are wasted; b. the spray pipe of the existing dish washer is generally directly connected with the water inlet pipe through threads, so that the spray pipe is troublesome to disassemble and assemble when needing to be replaced and maintained, and meanwhile, if the disassembly and assembly times of the spray pipe are too many, the threads are easily abraded, the sealing performance is further influenced, and the service life is reduced; c. when the residues on the filter screen are more, the filter holes of the filter screen are easily plugged by the residues, so that the residual liquid after tableware cleaning cannot pass through the filter screen, the filter screen cannot well realize the filtering function, and when the residual liquid on the filter screen is too much, the filter screen can be damaged due to too large pressure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a dish washer is provided with good deslagging and cleaning effects, high sealing performance, convenient disassembly and assembly, good filtering effect and long service life.

The utility model discloses a realize through following technical scheme:

a dishwasher, comprising a rack and, disposed on the rack:

a conveyor for transporting the dishware;

the cleaning device comprises a plurality of spraying mechanisms which are sequentially arranged along the conveying direction of the conveying device, each spraying mechanism comprises a spraying pipe, a water inlet pipe and a jacking mechanism, the water inlet pipes and the jacking mechanisms are arranged on the rack, one end of each spraying pipe is inserted into the corresponding water inlet pipe and communicated with the inner cavity of the corresponding water inlet pipe, and the jacking mechanisms are jacked at the other ends of the spraying pipes and enable the spraying pipes to be tightly attached to the water inlet pipes;

and the slag discharging device is arranged below the conveying device and comprises a plurality of corrugated filter screens.

Optionally, the jacking mechanism comprises a limiting plate and an elastic device, the limiting plate is arranged on the rack, the elastic device is arranged between the limiting plate and the spray pipe, and the limiting plate elastically presses the spray pipe through the elastic device so that the spray pipe is tightly attached to the water inlet pipe.

Optionally, the elastic device comprises a baffle and a spring, the baffle is arranged on the outer wall of one end, close to the limiting plate, of the spray pipe, the spring is arranged between the baffle and the limiting plate, and the limiting plate elastically exerts pressure on the baffle through the spring so that the spray pipe is tightly attached to the water inlet pipe.

Optionally, a water circulation system is arranged on the rack, the water circulation system comprises a water storage tank, a water delivery pipe and a water suction pump, the water storage tank is arranged below the filter screen, the water suction pump is respectively communicated with the water storage tank and the partial spraying mechanism through the water delivery pipe, and the water suction pump sucks filtered water from the water storage tank and supplies the sucked filtered water to the partial spraying mechanism under a given pressure.

Optionally, the water containing tanks are a plurality of and are sequentially arranged along the conveying direction of the conveying device, and a communicating pipe is arranged between every two adjacent water containing tanks.

Optionally, the electric water heater is arranged on the rack and comprises a shell, a heating pipe assembly and an annular clamp, an opening is formed in the shell, the heating pipe assembly comprises a mounting plate and a plurality of groups of heating pipes arranged on the mounting plate, a first flange is arranged on the mounting plate, a second flange is arranged on the shell on the periphery of the opening of the shell, and the annular clamp is sleeved on the first flange and the second flange and used for mounting the heating pipe assembly on the shell.

Optionally, a groove is circumferentially formed in the inner wall of the annular clamp, the first flange and the second flange are inserted into the groove, and the distance between the back surfaces of the first flange and the second flange is reduced along the direction far away from the central axis of the annular clamp, so that when the annular clamp is screwed down, the first flange and the second flange are pressed axially by the side wall of the groove and are tightly attached to each other.

Optionally, a smooth connecting plate is arranged between each two adjacent filter screens, the length direction of the wave crests of the filter screens is perpendicular to the conveying direction of the conveying device, and the smooth connecting plates are in butt joint with the wave crest portions of the filter screens.

Optionally, the rack is provided with a bowl placing table and a bowl receiving table at the front end and the rear end of the conveying device respectively.

Optionally, the conveying device includes a conveying net chain arranged on the frame and a driving motor in transmission connection with the conveying net chain.

The utility model has the advantages that:

the utility model discloses a dish washer of technical scheme, conveyer is used for transporting the tableware, belt cleaning device includes a plurality of along conveyer's direction of delivery set gradually sprays the mechanism, in order to be used for carrying out the primary wash to the tableware in proper order, main wash and rinsing processing, the primary wash is to remove the great residue of volume on the tableware to be washed, the main wash is to carry out deoiling with the washing water that mixes the detergent with the tableware after removing the dregs, the rinsing processing is to wash away the detergent on the tableware after the main wash with washing water, through the processing of three stages, finally make the clean health that the tableware becomes, remove dregs and cleaning performance is good; meanwhile, the spray pipe is inserted into the water inlet pipe, and the spray pipe is tightly attached to the water inlet pipe through the jacking mechanism, so that compared with the problem of thread abrasion or rust during threaded connection, the spray pipe has better sealing performance and longer service life; the filter screen is wavy flute structure, the flow area of filter screen has not only been increased, make filter speed more accelerate, the residue is gathered in the trough department of filter screen moreover, and the raffinate after the filtration flows from the inclined plane of filter screen and the filtration pore of crossing of crest department, has avoided the residue to plug up the filtration pore is whole on the filter screen, and then leads to the poor condition of filter effect, and the filter screen sets up to the flute structure, compares in flat-plate filter screen, and its structural strength is higher, and life is longer.

Drawings

The following detailed description of embodiments of the invention is provided in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is another perspective view of the present invention;

fig. 3 is a partial view of a third perspective of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a schematic structural view of the spraying mechanism of the present invention;

FIG. 6 is a partial cross-sectional view of the spray mechanism of the present invention;

FIG. 7 is a schematic structural view of another embodiment of a spray mechanism;

FIG. 8 is a schematic structural view of the filter net of the present invention;

FIG. 9 is a schematic view of the connection between the filter net and the smooth connection plate;

FIG. 10 is a schematic structural view of an electric heater according to the present invention;

FIG. 11 is a partial cross-sectional view of an electric heater;

FIG. 12 is an enlarged view of a portion of FIG. 11 at B;

fig. 13 is a schematic structural view of a component housing of the present invention;

fig. 14 is a schematic structural view of a component heating tube assembly according to the present invention;

fig. 15 is a schematic structural view of the annular band of the present invention.

Detailed Description

A dishwasher, as shown in fig. 1 to 8, includes a housing 100 and, provided on the housing 100:

a conveyor for transporting the dishware;

the cleaning device comprises a plurality of spraying mechanisms 301 which are sequentially arranged along the conveying direction of the conveying device, each spraying mechanism 301 comprises a spraying pipe 302, a water inlet pipe 303 and a jacking mechanism, the water inlet pipe 303 and the jacking mechanism are arranged on the rack 100, one end of each spraying pipe 302 is inserted into the corresponding water inlet pipe 303 and communicated with the inner cavity of the corresponding water inlet pipe 303, and the jacking mechanism jacks the other end of each spraying pipe 302 and enables the spraying pipes 302 to be tightly attached to the corresponding water inlet pipes 303;

and the slag discharging device is arranged below the conveying device and comprises a plurality of corrugated filter screens 401.

In this embodiment, conveyer is used for transporting tableware, belt cleaning device includes that a plurality of along conveyer's direction of delivery sets gradually sprays mechanism 301, it carries out the primary wash to the tableware in proper order to spray mechanism 301, main wash and rinsing are handled, the primary wash is to remove the great residue of volume on the tableware that waits to wash with the sparge water, the main wash is to carry out deoiling with the tableware after the slagging-off with the washing water that mixes the detergent to handle, the rinsing is to wash away the detergent on the tableware after the main wash with washing water, through three stage's processing, finally make the clean health that the tableware becomes, slagging-off and cleaning performance are good. Simultaneously, shower 302 is pegged graft with inlet tube 303 to make shower 302 closely laminate with the delivery port of inlet tube 303 through the top mechanism of holding, can appear screw thread wearing and tearing or rusty problem when comparing in threaded connection, its sealing performance is better, and life is longer. Filter screen 401 is wavy flute structure, the area of overflowing of filter screen 401 has not only been increased, make filter speed more accelerate, and the residue is gathered in filter screen 401's trough department, and the filtration pore outflow of raffinate from filter screen 401's inclined plane and crest department, avoided the residue to filter on filter screen 401 and all stopped up, and then lead to the poor condition of filter effect, filter screen 401 sets up to flute structure, compare in flat-plate filter screen 401, its structural strength is higher, life is longer. It should be noted that, a plurality of horizontal spray branch pipes 310 may be disposed on the spray pipe 302, or vertical side spray pipes 311 may be disposed at two ends of the spray pipe 302, so that the cleaning area of the spray pipe 302 is larger, and the cleaning dead angle of the tableware is less.

In some embodiments, as shown in fig. 6, the supporting mechanism includes a limiting plate 304 and an elastic device 305, the limiting plate 304 is disposed on the rack 100, the elastic device 305 is disposed between the limiting plate 304 and the shower pipe 302, and the limiting plate 304 elastically presses the shower pipe 302 through the elastic device 305 to make the shower pipe 302 tightly contact with the water inlet pipe 303. Elastic device 305 can absorb vibration and impact quantity, and elastic device 305 elastically exerts pressure to shower 302 for the interaction force between shower 302 and inlet tube 303 or shower 302 and limiting plate 304 tends to steady, avoids appearing great impact force in the short time and causes the harm of part, has further improved life.

In some embodiments, as shown in fig. 6, the elastic device 305 includes a baffle 306 and a spring 307, the baffle 306 is disposed on an outer wall of the shower pipe 302 near one end of the position-limiting plate 304, the spring 307 is disposed between the baffle 306 and the position-limiting plate 304, the position-limiting plate 304 elastically presses the baffle 306 through the spring 307, the baffle 306 pushes the shower pipe 302 to make the shower pipe 302 tightly contact with the water inlet pipe 303, so that water in the water inlet pipe 303 enters the shower pipe 302, and the shower pipe 302 sprays cleaning water from the water spray opening and cleans the dishes. It should be noted that the spring 307 may also be replaced by an elastic rubber ring, the elastic rubber ring is sleeved on the shower pipe 302, and the limiting plate 304 elastically presses the baffle 306 through the elastic rubber ring to make the shower pipe 302 tightly attached to the water inlet pipe 303. In addition, the elastic device 305 may also be a pressure spring directly, the pressure spring is sleeved outside the shower pipe 302, one end of the pressure spring away from the limiting plate 304 is connected to the shower pipe 302, the other end of the pressure spring abuts against the limiting plate 304 and is pressed by the limiting plate 304 in the axial direction, and the limiting plate 304 elastically presses the shower pipe 302 through the pressure spring so that the shower pipe 302 is tightly attached to the water inlet pipe 303. In addition, in order to protect the spring 307, the shower pipe 302 can be further sleeved with a push plate 308 between the spring 307 and the limiting plate 304, the push plate 308 is axially provided with a sleeve 309, the sleeve 309 is sleeved outside the spring 307, the push plate 308 and the sleeve 309 protect the spring 307, the spring 307 is prevented from being stained with water and dust, the push plate 308 and the sleeve 309 can also play a decorative role, one end of the sleeve 309, which is far away from the push plate 308, is provided with an opening, and the inner diameter of the sleeve 309 is larger than the outer diameter of the baffle 306, so that the sleeve 309 can axially move along with the push plate 308.

In some embodiments, as shown in fig. 1, a water circulation system is disposed on the rack 100, the water circulation system includes a water containing tank 501, a water conveying pipe 502 and a water pump 503, the water containing tank 501 is disposed below the filter screen 401, the water pump 503 is respectively communicated with the water containing tank 501 and one of the spraying mechanisms 301 through the water conveying pipe 502, and the water pump 503 sucks filtered water from the water containing tank 501 and supplies the sucked filtered water to one of the spraying mechanisms 301 at a given pressure. The water circulation system is arranged to realize the recycling of the filtered water, and is economical and environment-friendly. It should be noted that some of the spray mechanisms 301 are the spray mechanisms 301 for performing the primary washing and the main washing of the dishes, and since an external clean water source is required for rinsing the dishes, the water circulation system is not connected to the spray mechanisms 301 in the rinsing stage.

In some embodiments, as shown in fig. 1, the water tanks 501 are several and are sequentially arranged along the conveying direction of the conveying device, and a communication pipe is arranged between each two adjacent water tanks 501. The water storage tanks 501 may be three and respectively correspond to the initial washing, main washing and rinsing stages of the tableware, each water storage tank 501 is provided with a corresponding water suction pump 503, and the water suction pumps 503 suck the filtered water from the water storage tanks 501 and supply the sucked filtered water to the spraying mechanisms 301 corresponding to the initial washing, main washing and rinsing stages at a given pressure. The communicating pipes are arranged between the adjacent water containing tanks 501, firstly, the tableware is rinsed by clean cleaning water, the rinsed filtered water enters the water containing tank 501 in the rinsing stage, when the filtered water in the water containing tank 501 in the rinsing stage is too much, the redundant filtered water can overflow and be conveyed into the water containing tank 501 in the main washing stage, and then the redundant filtered water is pumped by the water pump 503 and is recycled in the main washing stage, and the redundant filtered water in the water containing tank 501 in the main washing stage can overflow and be conveyed into the water containing tank 501 in the initial washing stage, and is pumped by the water pump 503 and recycled in the initial washing stage, so that the loss of the filtered water in each water containing tank 501 is avoided. It should be noted that the filtered water in the water containing tank 501 in the initial washing stage can also be delivered to the water containing tank 501 in the main washing stage, and the filtered water after the main washing and the initial washing contains grease, which cannot be used in the rinsing stage, therefore, the horizontal position of the connection point between the water containing tank 501 in the rinsing stage and the communication pipe needs to be higher than the horizontal position of the connection point between the water containing tank 501 in the initial washing and the main washing stage and the communication pipe, or a check valve is arranged on the communication pipe between the water containing tank 501 in the rinsing stage and the water containing tank 501 in the main washing stage. In addition, the communicating pipe is provided, so that filtered water in all the water containing tanks 501 can be discharged through the water outlets of the water containing tanks 501 in the initial washing stage or the main washing stage, and it is not necessary to provide a water outlet for each water containing tank 501.

In some embodiments, as shown in fig. 2 and fig. 10 to fig. 15, an electric water heater 600 is disposed on the machine frame 100, the electric water heater 600 includes a housing 601, a heating pipe assembly 602, and an annular clamp 603, an opening is disposed on the housing 601, the heating pipe assembly 602 includes a mounting plate 604 and a plurality of groups of heating pipes 605 disposed on the mounting plate 604, a first flange 606 is disposed on the mounting plate 604, a second flange 607 is disposed on the housing 601 on a peripheral side of the opening, and the annular clamp 603 is sleeved on the first flange 606 and the second flange 607 for mounting the heating pipe assembly 602 on the housing 601. The annular clamp 603 is tightened, the mounting plate 604 is mounted on the housing 601 to form a sealing body for the housing 601, and the heating pipe 605 on the mounting plate 604 is electrified to heat the water to be heated in the housing 601. When the interior of the shell 601 needs to be cleaned or the heating pipe 605 inside the shell 601 needs to be replaced and maintained, the annular clamp 603 is loosened, so that the cleaning device is fast and convenient.

In some embodiments, as shown in fig. 2, 10 to 15, a groove 608 is circumferentially formed on an inner wall of the annular clamp 603, the first flange 606 and the second flange 607 are inserted into the groove 608, and a distance between facing surfaces of the first flange 606 and the second flange 607 is reduced in a direction away from a central axis of the annular clamp 603, so that when the annular clamp 603 is tightened, the first flange 606 and the second flange 607 are pressed by a side wall of the groove 608 in an axial direction to be tightly attached. The first flange 606 and the second flange 607 are inserted into the groove 608, the annular clamp 603 is tightened, the mounting plate 604 is mounted on the housing 601 and the housing 601 forms a sealing body, and the heating pipe 605 on the mounting plate 604 heats water to be heated in the housing 601. Annular clamp 603 inner wall a week all is provided with recess 608, and first flange 606 and second flange 607 a week all receive the axial extrusion of recess 608 inside wall and closely laminate, compare in through bolted connection, and its operation is more convenient, and sealing performance is better. It should be noted that when the axial distance between the inner side walls of the groove 608 decreases in a direction away from the central axis of the annular clamp 603, the first flange 606 and the second flange 607 can also be tightly attached by the axial pressing force of the groove 608. In addition, a sealing ring 609 can be arranged between the first flange 606 and the second flange 607, and the sealing ring 609 can improve the sealing performance between the housing 601 and the mounting plate 604.

In some embodiments, as shown in fig. 1 and 9, a smooth connection plate 402 is connected between each adjacent filter screen 401, the length direction of the wave peak of each filter screen 401 is perpendicular to the conveying direction of the conveying device, and the smooth connection plate 402 is butted with the wave peak part on the filter screen 401. Part of the residual liquid and the residue fall onto the smooth connection plate 402 and then flow onto the adjacent filter screen 401 for filtration. Smooth connecting plates 402 are arranged between adjacent filter screens 401, so that the use of the filter screens 401 can be reduced, and compared with the arrangement of a whole filter screen 401, the required structural strength requirement is lower. The filter screen 401 is perpendicular to the conveying direction of the conveying device in the length direction of the wave crests, and the smooth connecting plate 402 is in butt joint with the wave crest part on the filter screen 401, so that residues and residual liquid entering the filter screen 401 can be prevented from flowing back to the smooth connecting plate 402.

In some embodiments, as shown in fig. 1 and fig. 2, a bowl placing table 101 and a bowl receiving table 102 are respectively disposed on the rack 100 at the front end and the rear end of the conveying device. If the placing table 101 and the receiving table 102 are arranged, tableware to be washed and tableware after being washed can be temporarily stored on the placing table 101 and the receiving table 102, and the tableware containing box is not required to be placed beside the dishwasher all the time, so that the working personnel can work more conveniently.

In some embodiments, as shown in fig. 1 and 2, the conveying device includes a conveying net chain 201 disposed on the frame 100 and a driving motor 202 drivingly connected to the conveying net chain 201. The front end and the rear end of the conveying net chain 201 are provided with chain wheels, an output shaft of the driving motor 202 is connected with the chain wheel located at one end of the conveying net chain 201, the driving motor 202 drives the chain wheel to rotate, and the chain wheel drives the conveying net chain 201 to operate, so that the conveying net chain 201 can transport tableware finally. In addition, the driving motor 202 can also indirectly drive the sprocket to rotate through a transmission mechanism, and the transmission mechanism can be a belt or a gear.

The above embodiments are only used for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of the technical solutions of the present invention.

Claims

1. A dishwasher, comprising a rack (100) and, disposed on the rack (100):

a conveyor for transporting the dishware;

the cleaning device comprises a plurality of spraying mechanisms (301) which are sequentially arranged along the conveying direction of the conveying device, each spraying mechanism (301) comprises a spraying pipe (302), a water inlet pipe (303) and a jacking mechanism, the water inlet pipes (303) and the jacking mechanisms are arranged on the rack (100), one end of each spraying pipe (302) is inserted into the water inlet pipe (303) and communicated with the inner cavity of the water inlet pipe (303), and the jacking mechanisms are jacked at the other ends of the spraying pipes (302) and enable the spraying pipes (302) to be tightly attached to the water inlet pipes (303);

the slag discharging device is arranged below the conveying device and comprises a plurality of corrugated filter screens (401).

2. A dishwasher according to claim 1, wherein: the jacking mechanism comprises a limiting plate (304) and an elastic device (305), the limiting plate (304) is arranged on the rack (100), the elastic device (305) is arranged between the limiting plate (304) and the spray pipe (302), and the limiting plate (304) elastically presses the spray pipe (302) through the elastic device (305) so that the spray pipe (302) is tightly attached to the water inlet pipe (303).

3. A dishwasher according to claim 2, wherein: the elastic device (305) comprises a baffle (306) and a spring (307), the baffle (306) is arranged on the outer wall of one end, close to the limiting plate (304), of the spray pipe (302), the spring (307) is arranged between the baffle (306) and the limiting plate (304), and the limiting plate (304) elastically presses the baffle (306) through the spring (307) so that the spray pipe (302) is tightly attached to the water inlet pipe (303).

4. A dishwasher according to any one of claims 1 to 3, wherein: the water circulating system is arranged on the rack (100) and comprises a water containing tank (501), a water conveying pipe (502) and a water suction pump (503), wherein the water containing tank (501) is located below the filter screen (401), the water suction pump (503) is respectively communicated with the water containing tank (501) and part of the spraying mechanisms (301) through the water conveying pipe (502), and the water suction pump (503) sucks filtered water from the water containing tank (501) and supplies the sucked filtered water to part of the spraying mechanisms (301) under given pressure.

5. A dishwasher according to claim 4, wherein: the water containing tanks (501) are arranged in sequence along the conveying direction of the conveying device, and communicating pipes are arranged between every two adjacent water containing tanks (501).

6. A dishwasher according to any one of claims 1 to 3, wherein: be provided with electric water heater (600) on frame (100), electric water heater (600) include casing (601), heating pipe subassembly (602) and annular clamp (603), be provided with the opening on casing (601), heating pipe subassembly (602) including mounting panel (604) with set up in a plurality of groups heating pipe (605) on mounting panel (604), be provided with first flange (606) on mounting panel (604), be provided with second flange (607) in its open-ended week side on casing (601), annular clamp (603) cover is located first flange (606) with on second flange (607), in order to be used for with heating pipe subassembly (602) install in on casing (601).

7. A dishwasher according to claim 6, wherein: be provided with recess (608) along circumference on the inner wall of annular clamp (603), first flange (606) with second flange (607) are inserted and are located in recess (608), first flange (606) with distance between second flange (607) the dorsad reduces along the direction of keeping away from annular clamp (603) the central axis for when being used for screwing up annular clamp (603), first flange (606) with second flange (607) receive the axial extrusion of recess (608) lateral wall and closely laminate.

8. A dishwasher according to any one of claims 1 to 3, wherein: smooth connecting plates (402) are arranged between every two adjacent filter screens (401), the length direction of the wave crests of the filter screens (401) is perpendicular to the conveying direction of the conveying device, and the smooth connecting plates (402) are in butt joint with the wave crest portions on the filter screens (401).

9. A dishwasher according to any one of claims 1 to 3, wherein: and the rack (100) is provided with a bowl placing table (101) and a bowl receiving table (102) at the front end and the rear end of the conveying device respectively.

10. A dishwasher according to any one of claims 1 to 3, wherein: the conveying device comprises a conveying net chain (201) arranged on the rack (100) and a driving motor (202) in transmission connection with the conveying net chain (201).