CN209785892U - Cleaning device for flower basket - Google Patents

Abstract

The utility model discloses a belt cleaning device of basket of flowers, this belt cleaning device include casing, tray, transportation subassembly and clean subassembly, inject transportation chamber and washing chamber in the casing, wash chamber and transportation chamber intercommunication, and the tray is established at washing the intracavity, and the tray is suitable for to hold and fix a position the basket of flowers, and the transportation subassembly is established at the transportation intracavity to on transporting the basket of flowers to the tray, clean subassembly is established at washing the intracavity, and clean subassembly is configured to wash and dry the basket of flowers. This belt cleaning device can wash stoving basket of flowers betterly, reduces the remaining moisture on the basket of flowers to do not influence the workshop cleanliness factor at washing stoving basket of flowers in-process.

Description

Cleaning device for flower basket

Technical Field

the utility model relates to a photovoltaic equipment technical field especially relates to a belt cleaning device of basket of flowers.

background

the existing flower basket can contain a large amount of water after being sliced by a cleaning machine, the water needs to be removed before the flower basket is reused, and the existing production line uses a method of blowing the flower basket by using an air gun to remove the water.

The method for drying the flower basket by using the air gun has the following defects:

1, manpower is consumed, special personnel are needed to blow the flower basket, and the drying efficiency of the flower basket is low;

2, the air gun is used, only the moisture can be simply blown off, and the moisture still remains on the flower basket;

3, the moisture remained on the flower basket can corrode the flower basket for a long time, and the moisture remained in the flower basket can influence the guide vane;

And 4, directly blowing a flower basket in the workshop to cause field dirtiness and influence on the cleanliness of the workshop.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a belt cleaning device of basket of flowers, this belt cleaning device can wash stoving basket of flowers betterly, reduces the remaining moisture on the basket of flowers to do not influence the workshop cleanliness factor at washing stoving basket of flowers in-process.

A cleaning device for a flower basket, comprising: the cleaning device comprises a shell, a cleaning device and a cleaning device, wherein a transportation cavity and a cleaning cavity are defined in the shell, and the cleaning cavity is communicated with the transportation cavity; a tray disposed within the cleaning chamber, the tray adapted to hold and position the flower basket; the transportation assembly is arranged in the transportation cavity to transport the flower basket to the tray; a cleaning assembly disposed within the washing chamber, the cleaning assembly configured to wash and dry the basket of flowers.

According to the utility model discloses belt cleaning device of basket of flowers because transportation subassembly and clean subassembly, has greatly simplified operating personnel's work, has improved user and has used the satisfaction to because washing and stoving all are accomplished at relative inclosed washing intracavity, reduced the harmful effects in the cleaning process to the workshop on the one hand, on the other hand has reduced remaining moisture on the basket of flowers, has reduced the adverse effect of remaining moisture to the guide vane.

In some embodiments, the housing further defines a separate chamber therein, the separate chamber being located below the wash chamber and the transport chamber, the tray being accessible to the separate chamber through the transport chamber; the cleaning device further comprises: the sorting assembly is arranged in the separating cavity and is configured to distinguish the flower basket according to the contact surface of the flower basket and the tray, and the flower basket after being distinguished is sent out of the separating cavity.

in some specific embodiments, the sorter assembly comprises: a conveyor belt disposed within the wash chamber and extending downwardly to the bottom of the staging chamber, the tray being fitted over the conveyor belt; the sorting belt is arranged in the distribution cavity, the middle part of the sorting belt is abutted against the lower part of the conveying belt, and the conveying belt can convey the tray to the sorting belt; the conveying belts are arranged at intervals along the extension direction of the sorting belt, and the two conveying belts are connected to two ends of the sorting belt in an abutting mode; wherein: the sorting belt is configured to distinguish the baskets based on a contact surface of the baskets with the tray and to transport the distinguished baskets to one of the two conveyor belts.

In some more specific embodiments, the cleaning device further includes a sensor disposed on a contact surface of the tray and the flower basket, the sensor is electrically connected to a driving device of the sorting belt, and the sorting belt can convey the flower basket to one of the conveyor belts according to a detection result of the sensor.

in some embodiments, the cleaning assembly comprises: the cleaning spray head is telescopically arranged on the side wall of the cleaning cavity and is configured to spray water flow and drying air flow towards the flower basket.

In some specific embodiments, the cleaning head includes: one end of the telescopic rod is connected to the side wall of the cleaning cavity in a sliding manner along the up-down direction; the water spray head is rotatably arranged at the other end of the telescopic rod; the air nozzle is rotatably arranged at the other end of the telescopic rod.

In some embodiments, the side wall of the cleaning cavity is provided with gas injection holes, and the gas injection holes are connected with an external gas source to inject drying gas towards the flower basket.

in some embodiments, the cleaning device further comprises: the defect detection piece is arranged in the cleaning cavity and is configured to detect the latch defect of the flower basket.

in some specific embodiments, the defect detecting element comprises four laser counters, and the four laser counters are respectively arranged at four corners of the cleaning cavity.

in some embodiments, the tray is provided with a stopper for positioning and limiting the flower basket.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

drawings

Fig. 1 is a schematic structural diagram of a flower basket provided by an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a cleaning assembly according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a tray according to an embodiment of the present invention.

reference numerals:

1. A housing; 11. a transport chamber; 12. a cleaning chamber; 121. a gas injection hole; 13. separating the cavities;

2. A tray; 21. a stopper;

3. A transport assembly;

4. A cleaning assembly; 41. cleaning the spray head; 411. a telescopic rod; 412. a sprinkler head; 413. a gas showerhead;

5. A sorting assembly; 51. a conveyor belt; 52. a sorting belt; 53. a conveyor belt;

6. an inductor;

7. And a defect detecting member.

Detailed Description

in order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The specific structure of the cleaning device for a flower basket according to the embodiment of the present invention will be described with reference to fig. 1 to 3.

As shown in fig. 1, the utility model discloses belt cleaning device of basket of flowers of embodiment includes casing 1, tray 2, transportation subassembly 3 and clean subassembly 4, inject transportation chamber 11 and washing chamber 12 in the casing 1, wash chamber 12 and transportation chamber 11 intercommunication, tray 2 is established in washing chamber 12, tray 2 is suitable for to hold and fix a position the basket of flowers, transportation subassembly 3 is established in transportation chamber 11 to transport the basket of flowers to tray 2 on, clean subassembly 4 is established in washing chamber 12, clean subassembly 4 is configured to wash and dry the basket of flowers.

It can be understood that, in the actual use process, an operator only needs to put the flower basket on the transportation component 3 located in the transportation cavity 11, the transportation component 3 can transport the flower basket to the tray 2 located in the cleaning cavity 12, and then the cleaning component 4 can clean and dry the flower basket. In the whole cleaning process, the operator only needs to place the flower basket on the transportation assembly 3, so that the work of the operator is greatly simplified, and the use satisfaction of the user is improved. Meanwhile, because the cleaning and drying processes are finished in the cleaning cavity 12, the cleaning cavity 12 is a relatively closed space, so that the cleanliness of a workshop is not influenced when the flower basket is cleaned. Drying the flower basket in a relatively closed washing chamber 12 can reduce residual moisture on the flower basket, thereby reducing the influence of the residual moisture on the guide vane.

In addition, because the tray 2 can position the flower basket, the flower basket is prevented from shaking in the cleaning process, and the cleaning effect of the cleaning device is ensured. Meanwhile, in order to ensure the positioning effect of the flower basket, a positioning structure for positioning the flower basket can be arranged on the top wall of the cleaning cavity 12.

According to the utility model discloses belt cleaning device of basket of flowers because transportation subassembly 3 and clean subassembly 4, has greatly simplified operating personnel's work, has improved user's use satisfaction to because wash and dry and all accomplish in relatively inclosed washing chamber 12, reduced the harmful effects in the cleaning process to the workshop on the one hand, on the other hand has reduced the basket of flowers and has gone up remaining moisture, reduced the adverse effect of remaining moisture to the guide vane.

It should be added here that the type of the transportation unit 3 in the present invention may be various, for example, the transportation unit 3 may be formed as a robot arm, a structure of the conveyor belt 53, a structure of the conveyor chain, a structure of the ball screw transmission, and so on. The type of the transportation unit 3 is not particularly limited, and the specific type of the transportation unit 3 may be selected according to actual conditions.

In some embodiments, as shown in fig. 1, the housing 1 further defines a separate chamber 13 therein, the tray 2 can enter the separate chamber 13 through the transportation chamber 11, the cleaning device further includes a sorting assembly 5, the sorting assembly 5 is disposed in the separate chamber 13, the sorting assembly 5 is configured to distinguish the flower basket according to the contact surface of the flower basket and the tray 2, and send the distinguished flower basket out of the separate chamber 13.

It can be understood that when the utility model discloses a belt cleaning device of basket of flowers washs single face making herbs into wool basket of flowers, because single face making herbs into wool basket of flowers generally includes P face and N face, consequently single face making herbs into wool basket of flowers and tray 2's contact surface may have two kinds, if the terminal surface that needs to distinguish each single face making herbs into wool basket of flowers in placing the in-process can greatly reduced work efficiency. And in the utility model discloses in, owing to the existence of letter sorting subassembly 5, letter sorting subassembly 5 can fall into two types according to single face making herbs into wool basket with the contact surface of tray 2 to can send out the branch chamber 13 of putting with the single face making herbs into wool basket after distinguishing. Therefore, the flower basket which is sent out of the cleaning device after cleaning is divided into two parts, and the subsequent operation is facilitated.

in some specific embodiments, as shown in fig. 1, the sorting assembly 5 includes a conveying belt 51, a sorting belt 52 and two conveying belts 53, the conveying belt 51 is disposed in the cleaning chamber 12 and extends downward to the bottom of the separate chamber 13, the tray 2 is fitted on the conveying belt 51, the sorting belt 52 is disposed in the separate chamber 13, the middle portion of the sorting belt 52 abuts against the lower portion of the conveying belt 51, the conveying belt 51 can convey the tray 2 to the sorting belt 52, the two conveying belts 53 are spaced apart along the extending direction of the sorting belt 52, and the two conveying belts 53 are connected to the two ends of the sorting belt 52 in an abutting manner. The sorting belt 52 is configured to distinguish the single-sided raised flower basket on the basis of the contact surface of the single-sided raised flower basket with the tray 2, and to transport the distinguished single-sided raised flower basket onto one of the two conveyor belts 53.

It will be appreciated that, when the single-sided plush baskets are washed, the conveyor belt 51 can convey the trays 2 into the distribution chamber 13 and transfer the trays 2 onto the sorting belt 52, which can convey the single-sided plush baskets 52 onto one of the two conveyor belts 53 according to their contact surfaces with the trays 2, thus making sorting of the single-sided plush baskets easier. It should be noted that, in the present invention, the driving members of the conveying belt 51, the sorting belt 52 and the conveying belt 53 may be belt wheels, and the tray 2 may be transported by the rotation of the belt wheels. Of course, in the utility model discloses in, the structure of transportation, letter sorting and conveying single face system fine hair flower basket can also not be the belt conveying structure of this embodiment, but other structures such as ball, slider guide rail, chain drive.

in some more specific embodiments, as shown in fig. 3, the cleaning device further comprises a sensor 6, the sensor 6 is arranged on the contact surface of the tray 2 and the flower basket, the sensor 6 is electrically connected with a driving device of the sorting belt 52, and the sorting belt 52 can convey the single-sided velvet flower basket to one of the conveyor belts 53 according to the detection result of the sensor 6. It can be understood that, in general, the number of holes on the P side and the N side of the single-sided etching basket is different, the detector can determine the type of the end face by checking the number of holes on the end face of the single-sided etching basket contacting the tray 2, and when the detector determines that the type of the end face of the single-sided etching basket contacting the tray 2 is communicated with the driving device of the sorting belt 52, the sorting belt 52 can convey the single-sided etching basket to the corresponding conveying belt 53, thereby completing the sorting of the single-sided etching basket. To sum up, the utility model discloses a clean subassembly 4 can realize the automatic sorting to the single face making herbs into wool basket that finishes that washs, need not artifical judgement, has both made things convenient for follow-up operation, has avoided the error that the people made the cause again for distinguishing.

It should be noted that the detector of the present invention may be a photoelectric sensor, and the driving device of the sorting belt 52 is a servo motor, so that the automatic sorting is easily realized. The feedback communication between the detectors and the drives of the sorting belt 52 should here be directly achievable by the person skilled in the art in view of the control system principles. Accordingly, no particular limitation on the form of feedback communication between the detector and the sorting belt 52 is required.

In some embodiments, as shown in fig. 1-2, the cleaning assembly 4 includes a cleaning nozzle 41, the cleaning nozzle 41 is telescopically disposed on a sidewall of the washing chamber 12, and the cleaning nozzle 41 is configured to spray water flow and drying air flow toward the flower basket. It can be understood that the cleaning nozzle 41 is telescopically arranged on the side wall of the cleaning cavity 12, so that the cleaning nozzle 41 can realize the comprehensive cleaning of the flower basket, the cleaning effect of the cleaning device is improved, and the cleanliness of the flower basket is ensured.

In some embodiments, as shown in fig. 2, the cleaning nozzle 41 includes a telescopic rod 411, a water spraying head 412 and a gas spraying head 413, one end of the telescopic rod 411 is slidably connected to the sidewall of the washing chamber 12 in the up-down direction, the water spraying head 412 is rotatably disposed at the other end of the telescopic rod 411, and the gas spraying head 413 is rotatably disposed at the other end of the telescopic rod 411. It can be understood that, in the actual use process, the water spraying head 412 is firstly opened to spray water towards the flower basket, and as one end of the telescopic rod 411 is slidably arranged on the side wall of the cleaning cavity 12 along the up-down direction, the telescopic rod 411 can reciprocate up and down in the water spraying process of the water spraying head 412, so that the cleaning effect of the flower basket is improved. After the cleaning, the air nozzle 413 sprays drying water flow towards the flower basket, and in the air spraying process of the air nozzle 413, the telescopic rod 411 can move up and down in a reciprocating manner, so that the drying effect on the flower basket is improved.

It should be noted that, the specific types and kinds of the telescopic rod 411, the sprinkler head 412 and the sprinkler head 413 are not limited herein, and the specific types and kinds of the telescopic rod 411, the sprinkler head 412 and the sprinkler head 413 can be selected according to actual situations. In addition, the sliding manner of the telescopic rod 411 in the washing chamber 12 can be various, for example, in some embodiments, a lead screw is arranged in the washing chamber 12, and the telescopic rod 411 is connected to a nut matched with the lead screw. For another example, in some embodiments, one end of the telescopic rod 411 is connected to a piston rod of an air cylinder, and the air cylinder is connected to the inner wall of the washing chamber 12.

In some embodiments, as shown in FIG. 1, the side wall of the cleaning chamber 12 is provided with gas injection holes (121), and the gas injection holes (121) are connected with an external gas source to inject the drying gas toward the flower basket. Therefore, the drying effect on the flower basket can be improved, and the residual moisture on the flower basket is reduced. In order to improve the drying effect, a plurality of discs and a plurality of rows of air injection holes (121) can be arranged on the side wall of the cleaning cavity 12. The size and shape of the gas injection holes (121) are not particularly limited, and the size and shape of the gas injection holes (121) can be selected according to actual conditions.

In some embodiments, as shown in fig. 1, the cleaning device further comprises a defect detecting member 7, the defect detecting member 7 is arranged in the cleaning cavity 12, and the defect detecting member 7 is configured to detect the latch defect of the flower basket. It can be understood that, during long-term use, the latch of the flower basket always has a missing phenomenon, and the damaged flower basket is used in the subsequent process, which can affect the quality of the guide vane. The utility model discloses in, owing to be equipped with defect detection spare 7, the device can detect the latch defect of basket of flowers, when detecting the basket of flowers of damage, can send out alarm suggestion operating personnel and reject this basket of flowers to the basket of flowers is undamaged basket of flowers in the follow-up technology has been guaranteed.

In some embodiments, the defect detector 7 includes four laser counters, which are disposed at four corners of the cleaning chamber 12. Since the tray 2 can move downwards under the driving of the conveyer belt 51, in the process, the laser technologies arranged at the four corners of the cleaning cavity 12 can count the latch of the basket, and when the obtained number is smaller than a certain set value, the damage of the basket can be judged and the operator can be prompted. Of course, in other embodiments of the present invention, the defect detector 7 may not be a counter but may be other types of sensors, such as a photoelectric sensor.

In some embodiments, the tray 2 is provided with a stop 21 for positioning and limiting the flower basket. The positioning and limiting of the flower basket by the tray 2 is thereby achieved relatively simply.

It should be noted here that, because the stopper 21 is arranged on the tray 2, in the actual cleaning process, the tray 2 is slightly lower than the bottom wall of the cleaning cavity 12, and when the transporting assembly 3 transports the flower basket to the communicating port between the cleaning cavity 12 and the separate cavity 13, the flower basket can fall onto the tray 2, thereby completing the transfer of the flower basket.

example (b):

The following describes a specific structure of a cleaning device for a flower basket according to an embodiment of the present invention with reference to fig. 1 to 3.

The belt cleaning device of basket of flowers of this embodiment includes casing 1, tray 2, transportation subassembly 3, clean subassembly 4, letter sorting subassembly 5, inductor 6 and defect detecting piece 7, inject transportation chamber 11, washing chamber 12 and branch in the casing 1 and put the chamber 13, wash chamber 12 and transportation chamber 11 intercommunication, and tray 2 is established in washing chamber 12, and tray 2 is suitable for to hold and fix a position the basket of flowers, is equipped with the dog 21 that is used for fixing a position the restriction basket of flowers on tray 2. The transport assembly 3 is arranged in the transport chamber 11 to transport the flower basket onto the tray 2, the cleaning assembly 4 is arranged in the washing chamber 12, and the cleaning assembly 4 is configured to wash and dry the flower basket. The sorting assembly 5 is arranged in the separating cavity 13, and the sorting assembly 5 is configured to distinguish the flower basket according to the contact surface of the flower basket and the tray 2, and send the distinguished flower basket out of the separating cavity 13.

Sorting subassembly 5 includes the conveyer belt 51, the letter sorting area 52, conveyer belt 53, conveyer belt 51 is established in washing chamber 12 and downwardly extending to branch puts the chamber 13 bottom, the cooperation of tray 2 is on conveyer belt 51, letter sorting area 52 is established and is put the chamber 13 in the branch, the middle part and the conveyer belt 51 lower part butt of letter sorting area 52, conveyer belt 51 can carry tray 2 to letter sorting area 52 on, conveyer belt 53 is two, two conveyer belts 53 set up along the extending direction interval of letter sorting area 52, two conveyer belts 53 butt are connected at the both ends of letter sorting area 52. The inductor 6 is arranged on the contact surface of the tray 2 and the flower basket, the inductor 6 is electrically connected with a driving device of the sorting belt 52, and the sorting belt 52 can convey the flower basket to one of the conveying belts 53 according to the detection result of the inductor 6.

The cleaning nozzle 41 includes an extension rod 411, a water spraying head 412 and an air spraying head 413, one end of the extension rod 411 is slidably connected to the sidewall of the cleaning chamber 12 in the up-down direction, the water spraying head 412 is rotatably disposed at the other end of the extension rod 411, and the air spraying head 413 is rotatably disposed at the other end of the extension rod 411. The side wall of the cleaning cavity 12 is provided with gas injection holes (121), and the gas injection holes (121) are connected with an external gas source to inject drying gas towards the flower basket. The defect detecting part 7 comprises four laser counters which are respectively arranged at four corners of the cleaning cavity 12.

In the description herein, references to the description of "some embodiments," "other embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

the above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims (10)

1. A cleaning device for a flower basket, comprising:

a housing (1), wherein a transportation cavity (11) and a cleaning cavity (12) are defined in the housing (1), and the cleaning cavity (12) is communicated with the transportation cavity (11);

A tray (2), said tray (2) being provided inside said washing chamber (12), said tray (2) being suitable for containing and positioning said basket of flowers;

A transport assembly (3), said transport assembly (3) being provided within said transport chamber (11) to transport said baskets of flowers onto said tray (2);

A cleaning assembly (4), the cleaning assembly (4) being provided within the washing chamber (12), the cleaning assembly (4) being configured to wash and dry the basket of flowers.

2. a washing device for flower baskets according to claim 1, characterized in that said casing (1) further defines a separate chamber (13) inside it, said separate chamber (13) being located below said washing chamber (12) and said transport chamber (11), said tray (2) being accessible to said separate chamber (13) through said transport chamber (11);

The cleaning device further comprises: a sorting assembly (5), the sorting assembly (5) being arranged in the separate chamber (13), the sorting assembly (5) being configured to distinguish the baskets based on the contact surface of the baskets with the tray (2) and to send the distinguished baskets out of the separate chamber (13).

3. Device for cleaning baskets of flowers according to claim 2, characterized in that said sorting assembly (5) comprises:

A conveyor belt (51), said conveyor belt (51) being arranged inside said washing chamber (12) and extending downwards to the bottom of said dispensing chamber (13), said tray (2) being fitted on said conveyor belt (51);

A sorting belt (52), wherein the sorting belt (52) is arranged in the distribution cavity (13), the middle part of the sorting belt (52) is abutted against the lower part of the conveying belt (51), and the conveying belt (51) can convey the tray (2) to the sorting belt (52);

The conveying belts (53) are two, the two conveying belts (53) are arranged at intervals along the extending direction of the sorting belt (52), and the two conveying belts (53) are connected to two ends of the sorting belt (52) in an abutting mode; wherein:

The sorting belt (52) is configured to distinguish the baskets on the basis of their contact surface with the tray (2) and to transport them onto one of the two conveyor belts (53).

4. The device for cleaning flower baskets according to claim 3, characterized in that it further comprises a sensor (6), said sensor (6) being arranged on the contact surface of said tray (2) with said flower baskets, said sensor (6) being electrically connected to the drive means of said sorting belt (52), said sorting belt (52) being able to convey the flower baskets onto one of said conveyor belts (53) according to the detection result of said sensor (6).

5. Device for washing a flower basket according to claim 1, characterized in that said cleaning assembly (4) comprises:

a cleaning nozzle (41), wherein the cleaning nozzle (41) is telescopically arranged on the side wall of the washing cavity (12), and the cleaning nozzle (41) is configured to spray water flow and drying air flow towards the flower basket.

6. device for washing baskets of flowers according to claim 5, characterised in that said cleaning nozzle (41) comprises:

One end of the telescopic rod (411) is connected to the side wall of the cleaning cavity (12) in a sliding manner along the vertical direction;

The water spray head (412), the water spray head (412) is rotatably arranged at the other end of the telescopic rod (411);

The air nozzle (413), the air nozzle (413) is rotatably arranged on the other end of the telescopic rod (411).

7. the device for cleaning flower baskets of claim 1, characterized in that the side walls of the cleaning chamber (12) are provided with gas injection holes (121), said gas injection holes (121) being connected to an external gas source for injecting drying gas towards the flower baskets.

8. The cleaning device for flower basket according to claim 1, wherein said cleaning device further comprises: a defect detection piece (7), the defect detection piece (7) is arranged in the cleaning cavity (12), and the defect detection piece (7) is configured to detect the latch defect of the flower basket.

9. device for cleaning flower baskets according to claim 8, characterized in that said defect detector (7) comprises four laser counters, arranged at the four corners of said cleaning chamber (12).

10. device for cleaning baskets according to claim 1, characterised in that the tray (2) is provided with stops (21) for positioning and restraining the baskets.