CN213909745U

CN213909745U - Sealing member, cover body and cooking utensil

Info

Publication number: CN213909745U
Application number: CN202021704220.XU
Authority: CN
Inventors: 李金洲
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-08-10
Anticipated expiration: 2030-08-14

Abstract

The utility model provides a sealing member, lid and cooking utensil, wherein, the sealing member includes: a seal ring; the plugging structure has elasticity so that the plugging structure can be in interference fit with the through hole to be plugged; the connecting structure is connected between the sealing ring and the blocking structure, and one end of the blocking structure, which is connected with the connecting structure, is movable relative to the sealing ring. Use the technical scheme of the utility model the problem of intaking easily when the lid washs in can solving the correlation technique effectively.

Description

Sealing member, cover body and cooking utensil

Technical Field

The utility model relates to a small household electrical appliances field particularly, relates to a sealing member, lid and cooking utensil.

Background

One type of lid of the related art cooking appliance is provided with a through hole to meet the actual requirement. As the use time of the cooking appliance increases, a lot of stains are formed on the cover body.

For this kind of lid, when the user cleaned the lid, water easily got into inside the lid from the through-hole on the lid, led to the electronic components in the lid to be impaired to reduce the life of lid.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide a sealing member, lid and cooking utensil to the problem of intaking easily when the lid among the solution correlation technique washs.

In order to achieve the above object, according to an aspect of the present invention, there is provided a sealing member including: a seal ring; the plugging structure has elasticity so that the plugging structure can be in interference fit with the through hole to be plugged; the connecting structure is connected between the sealing ring and the blocking structure, and one end of the blocking structure, which is connected with the connecting structure, is movable relative to the sealing ring.

Use the technical scheme of the utility model, when the user needs clean lid, can be with the through-hole department of block structure shutoff on the lid to prevent that the lid from getting into in the through-hole when wasing water, thereby reduced the impaired probability of the inside electronic components of lid, prolonged the life of lid. In addition, the sealing ring can be sealed between the cover body and the inner pot of the cooking utensil, so that gas in the inner pot can be discharged along a preset exhaust passage, and the cleanness of the cooking utensil is ensured. The sealing element has the function of preventing gas from escaping from the gap between the cover body and the inner pot on one hand, and has the function of preventing the cover body from water inlet on the other hand, so that the functionality of the sealing element is improved.

Furthermore, the plugging structure comprises a cover plate and a sealing strip arranged on the cover plate, the sealing strip extends into the through hole, and the cover plate is covered on the outer side of the through hole. In the above structure, the sealing strip can stretch into the through hole and is in interference fit with the through hole to block the through hole. The cover plate can cover the surface of the cover body with the through hole, so that the outer wall of the sealing strip and the joint of the hole wall piece of the through hole are sealed, and the sealing structure is further enabled to have a better sealing effect.

Furthermore, the connecting structure is a flexible connecting sheet, the first end of the flexible connecting sheet is connected with the cover plate, and the second end of the flexible connecting sheet is connected with the sealing ring. In the structure, the positions of the through holes to be plugged on the cover body are various, so that the flexible connecting sheet is adopted, the sealing element can be suitable for cover bodies of different models, and the universality is improved. In addition, because the flexible connecting sheet has certain width, the connection area of the first end and the second end of the flexible connecting sheet, the cover plate and the sealing ring is large, so that the connection strength of the flexible connecting sheet can be ensured, and the service life of the sealing element is prolonged.

Further, a plurality of mounting nails arranged at intervals in the circumferential direction of the seal ring are arranged on the seal ring. The structure is simple, and the sealing ring can be fixed more stably.

According to the utility model discloses an on the other hand provides a lid, include: the cover body is provided with an air outlet; the sealing piece is the sealing piece, the sealing ring of the sealing piece is arranged on the cover body, and the sealing structure of the sealing piece is provided with a closing position in interference fit with the opening wall of the air outlet and an opening position for opening the air outlet. The sealing member has an advantage that water is not easily taken in when the lid body is cleaned, and therefore the lid body having the sealing member also has the above-mentioned advantage.

Further, the sealing member is foretell sealing member, and the air outlet sets up on the diapire of lid body, and the apron of block structure includes the sealed face of laminating with the lower surface of the diapire of lid body, and block structure's sealing strip sets up on sealed face. The structure can increase the sealing area of the sealing element, thereby further improving the sealing effect of the sealing element.

Further, the lid body is including the face lid, lining lid and the heating device that set gradually from top to bottom, and heating device includes bowl and heating pipe, and the air outlet sets up on the diapire of bowl, has the wind channel in the bowl, and the heating pipe sets up in the wind channel, and air outlet and wind channel intercommunication, sealed face and the laminating of the lower surface of the diapire of bowl. In the structure, the cover body has the function of baking and cooking by arranging the air duct and the heating pipe. When the user toasts the culinary art, can make the block structure on the sealing member be located the open position, hot-blast can blow out in the air outlet this moment, toasts the food in the culinary art intracavity. After the culinary art is finished, when the user need clean the lid, can make block structure move to the closed position, the air outlet was blocked by the sealing strip this moment, and sealed face also laminates with the lower surface of the diapire of bowl to make inside water difficult to enter into the lid, thereby further reduced the impaired probability of the inside electronic components of lid, prolonged the life of lid.

Furthermore, the reflecting cover comprises an upper reflecting cover, a lower reflecting cover and a connecting cylinder arranged between the upper reflecting cover and the lower reflecting cover, an air duct is formed by a channel between the upper reflecting cover, the connecting cylinder and the lower reflecting cover, an air outlet is arranged on the lower reflecting cover, and the inner ring of the sealing ring is clamped between the upper reflecting cover and the lower reflecting cover. In the structure, the upper surface of the sealing ring is abutted to the lower surface of the upper reflecting cover, and at least part of the lower surface of the sealing ring is abutted to the lower reflecting cover, so that the gap between the upper reflecting cover and the lower reflecting cover can be sealed, hot air can only be blown out from the air outlet, and the air volume loss of the hot air is reduced.

Furthermore, an annular air deflector extending downwards is arranged at the outer edge of the lower reflector. In the structure, because the air outlet is arranged on the lower reflecting cover, the annular air deflector extending downwards can play a role of guiding hot air blown out of the air outlet downwards, so that more hot air can enter the cooking cavity, the probability of escaping from a gap between the cover body and the cooking utensil is reduced, and the heat efficiency of the cooking utensil is improved.

According to another aspect of the present invention, there is provided a cooking appliance, including: an appliance body; the cover body is arranged on the appliance body in a covering mode. In the above structure, since the lid body is not easily broken, the cooking appliance having the lid body also has the above advantages.

Further, the utensil body includes the interior pot that has the culinary art chamber, and the sealing washer clamp of the sealing member of lid is between the top edge of lid and interior pot. In the structure, the cover body can press the sealing ring tightly on the edge of the inner pot by means of self gravity, so that hot air blown out from the air outlet cannot escape from the position between the cover body and the inner pot, gas in the inner pot can be discharged along a preset exhaust passage, and cleanness of the cooking utensil is guaranteed. In addition, the sealing washer presss from both sides and establishes and can effectively completely cut off interior pot heat that transmits to the lid between the last border of lid and interior pot to reduce the temperature rise of the especially lining lid of lid, improve the life of lid.

Further, the closing structure of the sealing element is connected to the outer edge of the sealing ring, and when the closing structure of the sealing element is in the open position, the closing structure is located outside the appliance body. In the structure, when the cooking appliance cooks, the blocking structure is positioned on the outer side of the appliance body and can avoid the food contact between the blocking structure and the cooking cavity, so that the cleanness of the food can be ensured, and the health of a user is facilitated.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

figure 1 shows a schematic perspective view of an angle of an embodiment of a seal according to the present invention;

FIG. 2 shows a schematic perspective view of another angle of the seal of FIG. 1;

fig. 3 shows a schematic view of a split structure of an embodiment of a cover according to the present invention;

FIG. 4 is a perspective view of the closure of the lid of FIG. 3 in a closed position;

FIG. 5 shows a schematic longitudinal sectional view of the cover of FIG. 4;

FIG. 6 shows an enlarged schematic view of the cover of FIG. 5 at A;

FIG. 7 is a perspective view of the closure of FIG. 3 in an open position;

FIG. 8 shows a schematic view of the split construction of the bowl and seal of FIG. 3;

fig. 9 shows a schematic perspective view of an embodiment of a cooking appliance according to the present invention;

fig. 10 shows a longitudinal sectional view of the cooking appliance of fig. 9; and

fig. 11 shows an enlarged structural schematic view at B of the cooking appliance of fig. 10.

Wherein the figures include the following reference numerals:

1. an air duct; 2. a cooking cavity; 10. a seal ring; 20. a blocking structure; 21. a cover plate; 211. a sealing surface; 22. a sealing strip; 30. a connecting structure; 31. a first end; 32. a second end; 40. a mounting structure; 50. a cover body; 51. a face cover; 52. a lining cover; 53. a heating device; 531. a reflector; 532. heating a tube; 533. an air outlet; 534. an upper reflector; 535. a lower bowl; 536. a connecting cylinder; 537. an annular air deflector; 538. accommodating grooves; 539. mounting holes; 60. a seal member; 70. an appliance body; 71. an inner pot; 80. a cover body.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 and 2, the seal of the present embodiment includes: a sealing ring 10, a blocking structure 20 and a connecting structure 30. Wherein, the plugging structure 20 has elasticity so that the plugging structure 20 can be in interference fit with the through hole to be plugged. And the connecting structure 30 is connected between the sealing ring 10 and the blocking structure 20, and one end of the blocking structure 20 connected with the connecting structure 30 is movable relative to the sealing ring 10.

Use the technical scheme of this embodiment, when the user needs clean lid, can be with the through-hole department of block structure 20 shutoff on the lid to prevent that the lid from getting into in the through-hole when wasing, thereby reduced the impaired probability of the inside electronic components of lid, prolonged the life of lid. In addition, the sealing ring 10 can be sealed between the cover body and the inner pot of the cooking utensil, so that the gas in the inner pot can be discharged along a preset exhaust channel, and the cleanness of the cooking utensil is ensured. The sealing element has the function of preventing gas from escaping from the gap between the cover body and the inner pot on one hand, and has the function of preventing the cover body from water inlet on the other hand, so that the functionality of the sealing element is improved.

As shown in fig. 1 and 2, in the present embodiment, the blocking structure 20 includes a cover plate 21 and a sealing strip 22 disposed on the cover plate 21, the sealing strip 22 extends into the through hole, and the cover plate 21 covers the outside of the through hole. In the above structure, the sealing strip 22 can extend into the through hole and be in interference fit with the through hole to block the through hole. The cover plate 21 can cover the surface of the cover body with the through hole to seal the joint between the outer wall of the sealing strip 22 and the hole wall member of the through hole, so that the sealing structure 20 has better sealing effect.

As shown in fig. 1, 2 and 6, in the present embodiment, the connecting structure 30 is a flexible connecting sheet, a first end 31 of the flexible connecting sheet is connected with the cover plate 21, and a second end 32 of the flexible connecting sheet is connected with the sealing ring 10. Because the position of treating the through-hole of shutoff on the lid is various, consequently adopt flexible connection piece for the sealing member can be applicable to the lid of different models, thereby improves the commonality. In addition, because the flexible connecting sheet has a certain width, the connecting area between the first end 31 and the second end 32 of the flexible connecting sheet and the cover plate 21 and the sealing ring 10 is large, so that the connecting strength of the flexible connecting sheet can be ensured, and the service life of the sealing element is prolonged.

As shown in fig. 1 and 2, in the present embodiment, the seal ring 10 is provided with a mounting structure 40. The above structure makes it unnecessary to use other connectors for the installation of the gasket 10, thereby facilitating the installation by the user.

As shown in fig. 1 and 2, in the present embodiment, the mounting structure 40 is a plurality of mounting nails arranged at intervals in the circumferential direction of the seal ring 10. The structure is simple, and the sealing ring 10 can be fixed more stably.

As shown in fig. 3, 4 and 7, the present application also provides a cover, an embodiment of a cover according to the present application includes: a cap body 50 and a sealing member 60. Wherein, the cover body 50 has an air outlet 533; the sealing member 60 is the above-described sealing member, the sealing ring 10 of the sealing member 60 is provided on the lid body 50, and the blocking structure 20 of the sealing member 60 has a closed position in interference fit with the mouth wall of the air outlet 533 and an open position in which the air outlet 533 is opened. In the above structure, when the user needs to clean the lid, the sealing member 60 can be located at the closed position, and at this time, the sealing member 60 can block the air outlet 533. When the user is cleaning the lid, water is difficult to enter into the lid from the air outlet 533, so that the probability of damage to the electronic component inside the lid is reduced. The structure is convenient for a user to clean the cover body and can prolong the service life of the cover body. When the air outlet 533 is needed to vent air, the user moves the blocking structure 20 of the sealing element 60 to the open position. The sealing material 60 has an advantage that water is not easily taken in when the lid body is cleaned, and therefore the lid body having the sealing material 60 also has the above-described advantage.

When the cover is stored, insects may enter the cover from the air outlet 533, which may affect the cleanness of the cover. The sealing member 60 designed in this embodiment can block the air outlet 533 when the cover is stored, so as to avoid the insect from entering the cover, thereby ensuring the cleanness of the cover.

As shown in fig. 4 to 6, in the present embodiment, the air outlet 533 is disposed on the bottom wall of the cover body 50, the cover plate 21 of the blocking structure 20 includes a sealing surface 211 attached to the lower surface of the bottom wall of the cover body 50, and the sealing strip 22 of the blocking structure 20 is disposed on the sealing surface 211. In the above structure, when the sealing member 60 is sealed, the sealing strip 22 can extend into the air outlet 533 and be in interference fit with the air outlet 533, so as to seal the air outlet. The sealing surface 211 can also be attached to the bottom wall of the lid body 50, thereby increasing the sealing area. The above structure can increase the sealing area of the sealing member 60, thereby further improving the sealing effect of the sealing member 60.

As shown in fig. 5, 6 and 11, in this embodiment, the cover body 50 includes a surface cover 51, a lining cover 52 and a heating device 53, which are sequentially disposed from top to bottom, the heating device 53 includes a reflector 531 and a heating pipe 532, the air outlet 533 is disposed on the bottom wall of the reflector 531, an air duct 1 is disposed in the reflector 531, the heating pipe 532 is disposed in the air duct 1, the air outlet 533 is communicated with the air duct 1, and the sealing surface 211 is attached to the lower surface of the bottom wall of the reflector 531. In the above structure, the air duct 1 and the heating pipe 532 are provided so that the lid body has a function of baking and cooking. When a user bakes and cooks food, the blocking structure 20 on the sealing member 60 can be located at the open position, and at this time, hot air can be blown out from the air outlet 533 to bake the food in the cooking cavity. After the culinary art is finished, when the user needs clean lid, can make block structure 20 move to the closed position, and air outlet 533 is the shutoff by sealing strip 22 this moment, and sealed face 211 also laminates with the lower surface of the diapire of bowl 531 to make inside water difficult to enter into the lid, thereby further reduced the impaired probability of the inside electronic components of lid, prolonged the life of lid.

As shown in fig. 6 and 11, in the present embodiment, the reflection cover 531 includes an upper reflection cover 534, a lower reflection cover 535, and a connecting cylinder 536 disposed between the upper reflection cover 534 and the lower reflection cover 535, a passage between the upper reflection cover 534, the connecting cylinder 536, and the lower reflection cover 535 forms the air duct 1, the air outlet 533 is disposed on the lower reflection cover 535, and the inner ring of the seal ring 10 is interposed between the upper reflection cover 534 and the lower reflection cover 535. In the above configuration, the upper surface of the seal ring 10 abuts against the lower surface of the upper reflection cover 534, and at least a part of the lower surface of the seal ring 10 abuts against the lower reflection cover 535, so that the gap between the upper reflection cover 534 and the lower reflection cover 535 can be sealed, hot air can be blown out only from the air outlet 533, and the loss of the hot air volume is reduced.

As shown in fig. 6, 8 and 11, in the present embodiment, an annular air deflector 537 extending downward is provided at the outer edge of the lower bowl 535. In the above structure, because the air outlet 533 is disposed on the lower reflection cover 535, the annular air deflector 537 extending downward can guide hot air blown out from the air outlet 533 downward, so that more hot air can enter the cooking cavity, and the probability of escaping from the gap between the cover and the cooking utensil is reduced, thereby improving the heat efficiency of the cooking utensil.

As shown in fig. 1, 5, 6, 8 and 11, in this embodiment, the air outlet 533 is communicated with the air duct 1, the outer edge of the upper reflection cover 534 has an accommodating groove 538 recessed upward, the sealing ring 10 is disposed in the accommodating groove 538, and the groove top wall of the accommodating groove 538 is provided with a mounting hole 539 for fitting with the mounting nail of the sealing member 60. In the above structure, the receiving groove 538 plays a role in installation and positioning, and is convenient for assembly. In addition, the upper surface and the inner surface of the sealing ring 10 are abutted to the upper reflecting cover 534, the lower surface of the sealing ring 10 is provided with an upward concave groove, the groove can be clamped on the lower reflecting cover 535, the sealing area can be increased by the structure, and the sealing performance of the sealing ring 10 is further improved.

In addition, it should be noted that the mounting nail is made of an elastic material, the mounting nail is provided with a mounting head with a conical surface, and a clamping groove which is recessed inwards is formed between the mounting head and the sealing ring 10. During installation, the mounting heads of the mounting nails are inserted into the corresponding mounting holes 539, so that the clamping grooves are clamped in the mounting holes, at the moment, the mounting heads are clamped above the top wall of the groove of the accommodating groove 538, and the sealing ring 10 is connected to the upper reflection cover 534. The above structure makes the sealing ring 10 unnecessary to use other connecting members when being installed, and facilitates the quick assembly of the sealing ring 10.

As shown in fig. 9 and 10, the present application also provides a cooking appliance, an embodiment of the cooking appliance of the present application includes: a device body 70 and a cover 80. The cover 80 is disposed on the appliance body 70, and the cover 80 is the above cover. In the above configuration, since the lid 80 is not easily broken, the cooking utensil having the lid has the above advantages.

As shown in fig. 10, in the present embodiment, the appliance body 70 includes an inner pot 71 having the cooking chamber 2, and the sealing ring 10 of the sealing member 60 of the cover 80 is interposed between the cover 80 and the upper edge of the inner pot 71. In the above structure, the cover body 80 can press the sealing ring 10 tightly on the edge of the inner pot 71 by means of the self gravity, so that the hot air blown out from the air outlet 533 cannot escape from between the cover body and the inner pot 71, the gas in the inner pot 71 can be discharged along the preset exhaust passage, and the cleanness of the cooking utensil is ensured. In addition, the sealing ring 10 is clamped between the cover body 80 and the upper edge of the inner pot 71, so that heat transferred from the inner pot 71 to the cover body can be effectively isolated, the temperature rise of the cover body, particularly the lining cover 52, is reduced, and the service life of the cover body is prolonged.

As shown in fig. 10, in the present embodiment, the closing structure 20 of the seal 60 is connected to the outer edge of the gasket 10, and when the closing structure 20 of the seal 60 is located at the open position, the closing structure 20 is located outside the device body 70. In the above structure, when the cooking appliance cooks, the blocking structure 20 located outside the appliance body 70 can avoid the blocking structure 20 from contacting with food in the cooking cavity 2, so as to ensure the cleanness of the food, which is beneficial to the health of the user.

As shown in fig. 6, 8 and 11, in the present embodiment, the annular air deflector 537 has a predetermined length to ensure a matching length of the annular air deflector 537 and the straight body of the inner pot 71 sufficiently, so that the cover 80 and the appliance body 70 can be concentric well.

In the case where the closure structure 20 is in the closed position, if the user closes the cover 80 and the device body 70, the flexible connecting sheet is sandwiched between the cover 80 and the device body 70, so that the cover 80 and the device body 70 cannot be closed really, thereby achieving a safety protection effect.

In this embodiment, the cooking appliance is an electric pressure cooker. Of course, in the embodiment not shown in the figures, the cooking appliance can also be an electric cooker, a low-pressure rice cooker, a soybean milk maker, a food processor, an electric stewpan, a cooking machine, a multifunctional pot and the like.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A seal, comprising:

a seal ring (10);

the plugging structure (20), the plugging structure (20) has elasticity so that the plugging structure (20) can be in interference fit with a through hole to be plugged;

the connecting structure (30) is connected between the sealing ring (10) and the blocking structure (20), and one end, connected with the connecting structure (30), of the blocking structure (20) can move relative to the sealing ring (10).

2. A seal according to claim 1, characterized in that the blocking structure (20) comprises a cover plate (21) and a sealing strip (22) arranged on the cover plate (21), the sealing strip (22) extending into the through hole, the cover plate (21) being arranged on the outside of the through hole.

3. A seal according to claim 2, wherein the connecting structure (30) is a flexible web, a first end (31) of which is connected to the cover plate (21) and a second end (32) of which is connected to the sealing ring (10).

4. A seal according to claim 1, characterized in that the sealing ring (10) is provided with a plurality of mounting pegs arranged at intervals in the circumferential direction of the sealing ring (10).

5. A cover, comprising:

a cover body (50) having an air outlet (533);

seal (60), characterized in that the seal (60) is a seal according to any one of claims 1 to 4, the sealing ring (10) of the seal (60) being disposed on the cover body (50), the blocking structure (20) of the seal (60) having a closed position of interference fit with the mouth wall of the air outlet (533) and an open position of opening the air outlet (533).

6. A cover, comprising:

a cover body (50) having an air outlet (533);

a sealing member (60), wherein the sealing member (60) is the sealing member of claim 2, the sealing ring (10) of the sealing member (60) is disposed on the cover body (50), the blocking structure (20) of the sealing member (60) has a closed position in interference fit with the wall of the air outlet (533) and an open position in which the air outlet (533) is opened, the air outlet (533) is disposed on the bottom wall of the cover body (50), the cover plate (21) of the blocking structure (20) includes a sealing surface (211) attached to the lower surface of the bottom wall of the cover body (50), and the sealing strip (22) of the blocking structure (20) is disposed on the sealing surface (211).

7. The cover body according to claim 6, wherein the cover body (50) comprises a surface cover (51), a lining cover (52) and a heating device (53) which are sequentially arranged from top to bottom, the heating device (53) comprises a reflection cover (531) and a heating pipe (532), the air outlet (533) is arranged on the bottom wall of the reflection cover (531), an air duct (1) is arranged in the reflection cover (531), the heating pipe (532) is arranged in the air duct (1), the air outlet (533) is communicated with the air duct (1), and the sealing surface (211) is attached to the lower surface of the bottom wall of the reflection cover (531).

8. The cover of claim 7, wherein the reflection cover (531) comprises an upper reflection cover (534), a lower reflection cover (535), and a connecting cylinder (536) disposed between the upper reflection cover (534) and the lower reflection cover (535), a channel between the upper reflection cover (534), the connecting cylinder (536), and the lower reflection cover (535) forms the air duct (1), the air outlet (533) is disposed on the lower reflection cover (535), and the inner ring of the sealing ring (10) is sandwiched between the upper reflection cover (534) and the lower reflection cover (535).

9. A cover according to claim 8, wherein the lower bowl (535) is provided at its outer edge with a downwardly extending annular air deflector (537).

10. A cooking appliance comprising:

an appliance body (70);

a cover (80) provided to the device body (70), wherein the cover (80) is the cover according to any one of claims 5 to 9.

11. The cooking appliance according to claim 10, wherein the appliance body (70) comprises an inner pan (71) having a cooking cavity (2), the sealing ring (10) of the sealing member (60) of the cover (80) being interposed between the cover (80) and an upper edge of the inner pan (71).

12. Cooking appliance according to claim 11, characterized in that the blocking structure (20) of the seal (60) is connected to the outer rim of the sealing ring (10), the blocking structure (20) being located outside the appliance body (70) in the open position of the blocking structure (20) of the seal (60).