CN222501449U - Waterproof structure of outer window node - Google Patents

Abstract

The utility model discloses a waterproof structure for an outer window node, in the field of building engineering technology, including a wall and an outer window main frame, wherein the outer window main frame is embedded in the wall, a first sealing material is provided between the outer window main frame and the wall, a decorative frame is provided on the outer side of the outer window main frame and the outer side of the wall, and a second sealing material is provided between the decorative frame, the outer window main frame and the wall. In this scheme, multiple groups of sealing materials are provided between the outer window node and the wall to improve the sealing effect between the outer window main frame and the wall, the decorative frame is provided at the connection position between the outer window main frame and the wall, and the gap between the outer window main frame and the wall can be initially water-proofed, and then a second sealing material is provided at the joint of the decorative frame and the wall and at the joint of the decorative frame and the outer window main frame for complete water-proofing, and at the same time, a first sealing material is provided at the connection between the outer window main frame and the wall to further improve the sealing effect and the anti-leakage effect.

Description

Waterproof structure of outer window node

Technical Field

The utility model relates to a door and window waterproof structure, in particular to an outer window node waterproof structure.

Background

The assembled wood structure building is currently under great domestic development, however, the outer window node has certain deficiency in air tightness, and water seepage condition can be caused. The traditional waterproof structure of the outer window node of the assembled wood structure has the problems that the connection between different materials is not tight enough, and sealing failure, leakage and the like are easy to occur after long-term use. Therefore, a novel waterproof structure is developed, and the waterproof performance and the service life of the wood structure house can be improved.

For example, chinese patent publication No. CN114635624A, publication No. 2022, no. 6 and No. 17, the invention name discloses a door and window edging waterproof structure, which comprises hollow glass, a frame, an upper window board and a lower window board, an upper water dripping plate and a lower water dripping plate, wherein the upper water dripping plate and the lower water dripping plate are arranged on the upper part and the lower part of the frame and the upper window board and the lower window board in an outward inclined manner, and a water baffle is arranged between the upper water dripping plate and the upper window board and between the upper water dripping plate and the lower window board.

Disclosure of utility model

The utility model solves the problems of poor waterproof performance and complex structure of the existing assembly type wood structure outer window waterproof structure, and provides the outer window node waterproof structure.

In order to solve the technical problems, the outer window node waterproof structure comprises a wall body and an outer window main frame, wherein the outer window main frame is embedded in the wall body, a first sealing material is arranged between the outer window main frame and the wall body, decorative frame bodies are arranged on the outer side of the outer window main frame and the outer side of the wall body, and a second sealing material is arranged between the decorative frame bodies and the outer window main frame and between the decorative frame bodies and the wall body. In this scheme, thereby set up the sealed effect between multiunit sealing material improvement outer window main frame and the wall body between outer window node and the wall body, thereby decorate the framework setting and carry out preliminary water proof to the gap between outer window main frame and the wall body at the hookup location of outer window main frame and wall body, then set up the second sealing material and carry out complete water proof in the amalgamation department of decorating framework and wall body and decorate the amalgamation department of framework and outer window main frame, thereby set up first sealing material in outer window main frame and wall body junction simultaneously, further improve sealed effect, improve antiseep effect. The waterproof structure is simple and easy to implement.

Preferably, a groove is formed in the connecting side of the outer window main frame and the wall body, and the first sealing material is arranged in the groove. The junction between outer window main frame and the wall body generally has the gap, in order to improve the sealed effect of first sealing material, sets up the recess on outer window main frame, on the one hand, and first sealing material between outer window main frame and the wall body is difficult to drop, has on the other hand blockked the infiltration along straight seam seepage, cuts off the infiltration.

Preferably, an upper windowsill and a lower windowsill are further arranged on the inner side of the outer window main frame and the inner side of the wall body, and a third sealing material is arranged between the upper windowsill and the lower windowsill and between the outer window main frame and the wall body. Besides the sealing materials arranged at the outer sides and the middle positions of the outer window main frame and the wall body, a third sealing material is also arranged at the inner side of the outer window main frame, so that the anti-leakage effect of the outer window main frame and the indoor windowsill is ensured.

Preferably, the decoration frame body comprises an upper decoration frame, a first gap is arranged between the upper surface of the upper decoration frame and the wall body, and a water flowing strip is arranged in the wall body at a position corresponding to the first gap. The water-following strip can be used for draining water seepage, so as to prevent water seepage residue.

Preferably, a flashing plate is arranged between the water flowing strip and the upper surface of the upper decorative frame, the flashing plate comprises a vertical section and an inclined section, the vertical section is embedded in the wall body, the inclined section is arranged between the upper surface of the upper decorative frame and the wall body, and the inclined direction is from the inner side to the outer side of the wall body downwards. The flashing board sets up inside the wall body, also can play the effect of water proof simultaneously to the slope section of flashing board can also lead away along water strip outlying infiltration, avoids the rainwater to deposit in the gap between decorating framework and the wall body.

Preferably, the decorative frame body further comprises a lower decorative frame, wherein the upper surface of the lower decorative frame is obliquely arranged, and the oblique direction is downward from the inner side to the outer side of the wall body. The upper surface of the lower decorative frame can be in direct contact with rainwater, the upper surface of the lower decorative frame is set to be in an inclined state, and the rainwater on the upper surface of the lower decorative frame can be directly guided away, so that the possibility of leakage is reduced.

Preferably, a drip groove is formed in the lower surface of the lower decorative frame. Rainwater can fall from the lower surface of the lower decorative frame after flowing down from the surface of the lower decorative frame, so that rainwater can flow into the wall body along the surface of the lower decorative frame, and the water dripping groove is arranged to prevent rainwater from flowing inwards.

Preferably, an insect-proof net is further arranged in the water-flowing strip and close to the decorative frame body. The insect-proof net can prevent insects from entering the wall body and avoid damaging the wall body.

Preferably, a sealing tape is arranged between the insect-proof net and the flashing plate. The sealing adhesive tape between the insect-proof net and the flashing board can prevent water seepage or water vapor from entering the wall body, so that the wall body is damaged.

Preferably, glass is arranged in the outer window main frame, and the glass is in sealing connection with the outer window main frame. The outer window main frame and the glass also need to be provided with materials such as sealant, so that the sealing between the outer window main frame and the glass window is realized, and water seepage is prevented.

Compared with the prior art, the utility model has the advantages of (1) improving the waterproof performance and stability of the outer window node, effectively avoiding the problems of sealing failure, leakage and the like after long-term use, (2) improving the connection compactness of the outer window node, enhancing the overall performance of the assembled wood structure outer window, and (3) having simple structure, easy implementation and lower production cost.

Drawings

FIG. 1 is a schematic diagram of the present utility model.

Fig. 2 is an enlarged view of a in fig. 1.

Fig. 3 is an enlarged view of B in fig. 1.

Fig. 4 is an enlarged view of C in fig. 1.

Fig. 5 is a schematic view of the outer window main frame of the present utility model.

In the figure, wall body 1, outer window main frame 2, first sealing material 3, second sealing material 4, groove 5, upper windowsill 6, transverse bench 6.2, vertical bench 7, lower windowsill 8, third sealing material 9, decorative frame 9.1, upper decorative frame 9.2, lower decorative frame 10, first gap 11, water-flowing strip 12, flashing 12.1, vertical section 12.2, inclined section 13, drip groove 14, insect-proof net 15, sealing tape 16, glass 17, heat preservation cotton and keel, 18, keel frame 19, second gap 20, ventilation strip.

Detailed Description

The technical scheme of the utility model is further specifically described below through specific embodiments and with reference to the accompanying drawings.

Embodiment 1 an outer window node waterproof construction as shown in fig. 1 to 5 comprises a wall body 1 and an outer window main frame 2, wherein the wall body 1 is provided with a window which is consistent with the outer window main frame 2 in shape and is used for installing the outer window main frame 2, the outer window main frame 2 is embedded in the wall body 1, and the whole outer window main frame 2 is aligned with the outer side surface of the wall body 1. The outer surface of the outer window main frame 2 and the connection position of the wall body 1 are provided with a decorative frame body 9, the decorative frame body 9 shields the installation joint between the outer window main frame 2 and the wall body 1, and a preliminary anti-seepage effect is achieved on the installation joint between the outer window main frame 2 and the wall body 1.

As shown in fig. 1, the decoration frame body 9 includes an upper decoration frame 9.1 and a lower decoration frame 9.2, the cross sections of the upper decoration frame 9.1 and the lower decoration frame 9.2 are rectangular cross sections, the upper surface of the upper decoration frame 9.1 is adhered to the wall body 1, the lower surface of the upper decoration frame 9.1 is adhered to the surface of the outer window main frame 2, second sealing materials 4 are respectively arranged on the upper surface and the lower surface of the upper decoration frame 9.1, the second sealing materials 4 can adopt sealing glue, and the sealing glue is used for shielding the joint between the upper surface of the upper decoration frame 9.1 and the wall body 1 and the joint between the lower surface of the upper decoration frame 9.1 and the outer window main frame 2, as shown in fig. 3. Likewise, the upper surface and the lower surface of the lower decorative frame 9.2 are also provided with a second sealing material 4, and the second sealing material 4 can be sealant, so that the seam between the upper surface of the lower decorative frame 9.2 and the outer window main frame 2 and the seam between the lower surface of the lower decorative frame 9.2 and the wall body 1 structure are shielded by the sealant, as shown in fig. 4.

As shown in fig. 2, a first sealing material 3 is further arranged on the direct connection surface of the wall body 1 and the outer window main frame 2, the first sealing material 3 can be polyurethane foam adhesive, and the outer edge mounting seam of the wall body 1 and the outer window main frame 2 is filled with the polyurethane foam adhesive, so that the sealing effect can be achieved, and the effect of stabilizing the frame of the outer window main frame 2 is achieved.

The wall body 1 is composed of multiple layers of materials, and the wall body 1 from indoor to outdoor sequentially comprises a coating, 12mm fireproof gypsum boards, oriented strand boards for 9.5mm structures, heat preservation cotton plus 38 x 140 keel columns 17, oriented strand boards for 9.5mm structures, breathing paper, water-flowing strips 11, 10mm cement fiber boards and the coating.

As shown in FIG. 1 or FIG. 5, two grooves 5 are formed in the edge of the outer frame of the outer window main frame 2, the grooves 5 are distributed around the outer window main frame 2 in an annular mode and are directly spliced with the wall body 1, a first sealing material 3 (polyurethane foam) is arranged in the grooves 5, and the polyurethane foam can bond the outer window main frame 2 and the wall body 1 in a structure, so that the effect of stability and sealing is achieved. Because the wall body 1 structure comprises multilayer structure, in order to prevent that the sealed effect between layer structure and the outer window main frame 2 is not good, the cover is equipped with fossil fragments post frame 18 on the cotton + fossil fragments post 17 structure of heat preservation of wall body to first sealing material 3 is direct with fossil fragments post frame 18 and recess 5 direct contact, improves sealed effect, prevents the seepage.

Inside wall body 1 still is provided with the windowsill structure, the windowsill structure includes windowsill 6 and lower windowsill 7, wherein go up windowsill 6 and lower windowsill 7 and all include horizontal platform 6.1 and vertical platform 6.2, horizontal platform 6.1 is direct with the inboard of outer window main frame 2 and the direct butt of the individual layer face of wall body 1 structure form the binding off, vertical platform 6.2 is direct with the medial surface laminating of wall body 1 forms the binding off, horizontal platform 6.1 and vertical platform 6.2 form right angle structure, the binding off department of horizontal platform 6.1 and outer window main frame 2 of windowsill and the binding off department of vertical platform 6.2 and wall body 1 inboard all are provided with third sealing material 8, the sealing gum can be adopted in the third sealing material 8 specifically.

The waterproof and anti-leakage effect between the outer window node and the house wall 1 is realized by arranging a three-layer sealant structure (a first sealant 3, a second sealant 4 and a third sealant 8).

In the outer structure of the wall body 1, the water flowing strip 11 is flush with the outer surfaces of the decorative frame body 9 and the outer window main frame 2, a first gap 10 is reserved between the water flowing strip 11 and the wall body 1 structure outside the water flowing strip and the upper surface of the upper decorative frame 9.1 as shown in fig. 1 or 3, and a second gap 19 is reserved between the water flowing strip and the lower surface of the lower decorative frame 9.2 as shown in fig. 1 or 4.

The upper decorative frame 9.1 is also provided with a flashing board 12 in the position of the water-guiding strip 11, the flashing board 12 comprises two sections, one section is a vertical section 12.1, the other section is an inclined section 12.2, the vertical section 12.1 of the flashing board 12 is clamped between the water-guiding strip 11 and the keel column frame 18, water discharged from the water-guiding strip 11 can be prevented from leaking to the keel column structure at the inner side of the wall body 1, the inclined section 12.2 is arranged in the first gap 10, the vertical section 12.1 and the inclined section 12.2 of the flashing board 12 are of an integral structure, the inclined direction of the inclined section 12.2 is inclined downwards from the inner side of the wall body 1 to the outer side of the wall body 1, the inclined angle is generally about 15 degrees, the end part of the inclined section 12.2 extends to the outer side of the wall body 1, water discharged from the water-guiding strip 11 and rainwater flowing down from the outer side surface of the wall body 1 can be directly guided away through the inclined section 12.2, and the rainwater is prevented from remaining between the upper surfaces of the upper decorative frame 9.1, so that the leakage phenomenon caused by the rainwater is reduced.

In addition, the inclined direction of the upper surface of the lower decorative frame 9.2 is also obliquely downwards arranged from indoor to outdoor, so that rainwater flowing down on a window can be directly and timely guided away, the rainwater is prevented from accumulating on the upper surface of the lower decorative frame 9.2, and a drip groove 13 is further arranged on the lower surface of the lower decorative frame 9.2, and because the lower surface of the lower decorative frame 9.2 is horizontally arranged, when accumulated water or rainwater slides from the upper surface to the lower surface of the lower decorative frame 9.2, the rainwater can fall off on the lower surface of the lower decorative frame 9.2, but partial accumulated water can flow to the inner side of the wall body 1 along the lower surface of the lower decorative frame 9.2 and then enter the inner structure of the wall body 1, so that the drip groove 13 is mainly used for preventing the rainwater from flowing down along the lower decorative frame 9.2 and blocking the inner surface of the wall body 1. The drip 13 is disposed on the outer vertical surface of the wall 1 and outside the wall, so that the drip 13 cannot be disposed on the outer vertical surface near the inner side of the wall 1, and water is prevented from dripping from the drip 13 into the second gap 19 and then entering the wall 1.

Embodiment 2 an outer window node waterproof construction as shown in fig. 1 to 5 comprises a wall body 1 and an outer window main frame 2, wherein the wall body 1 is provided with a window which is consistent with the outer window main frame 2 in shape and is used for installing the outer window main frame 2, the outer window main frame 2 is embedded in the wall body 1, and the whole outer window main frame 2 is aligned with the outer side surface of the wall body 1. The outer surface of the outer window main frame 2 and the connection position of the wall body 1 are provided with a decorative frame body 9, the decorative frame body 9 shields the installation joint between the outer window main frame 2 and the wall body 1, and a preliminary anti-seepage effect is achieved on the installation joint between the outer window main frame 2 and the wall body 1.

As shown in fig. 1, the decoration frame body 9 includes an upper decoration frame 9.1 and a lower decoration frame 9.2, the cross sections of the upper decoration frame 9.1 and the lower decoration frame 9.2 are rectangular cross sections, the upper surface of the upper decoration frame 9.1 is adhered to the wall body 1, the lower surface of the upper decoration frame 9.1 is adhered to the surface of the outer window main frame 2, second sealing materials 4 are respectively arranged on the upper surface and the lower surface of the upper decoration frame 9.1, the second sealing materials 4 can adopt sealing glue, and the sealing glue is used for shielding the joint between the upper surface of the upper decoration frame 9.1 and the wall body 1 and the joint between the lower surface of the upper decoration frame 9.1 and the outer window main frame 2, as shown in fig. 3. Likewise, the upper surface and the lower surface of the lower decorative frame 9.2 are also provided with a second sealing material 4, and the second sealing material 4 can be sealant, so that the seam between the upper surface of the lower decorative frame 9.2 and the outer window main frame 2 and the seam between the lower surface of the lower decorative frame 9.2 and the wall body 1 structure are shielded by the sealant, as shown in fig. 4.

As shown in fig. 2, a first sealing material 3 is further arranged on the direct connection surface of the wall body 1 and the outer window main frame 2, the first sealing material 3 can be polyurethane foam adhesive, and the outer edge mounting seam of the wall body 1 and the outer window main frame 2 is filled with the polyurethane foam adhesive, so that the sealing effect can be achieved, and the effect of stabilizing the frame of the outer window main frame 2 is achieved.

The wall body 1 is composed of multiple layers of materials, and the wall body 1 from indoor to outdoor sequentially comprises a coating, 12mm fireproof gypsum boards, oriented strand boards for 9.5mm structures, heat preservation cotton plus 38 x 140 keel columns 17, oriented strand boards for 9.5mm structures, breathing paper, water-flowing strips 11, 10mm cement fiber boards and the coating.

As shown in FIG. 1 or FIG. 5, two grooves 5 are formed in the edge of the outer frame of the outer window main frame 2, the grooves 5 are distributed around the outer window main frame 2 in an annular mode and are directly spliced with the wall body 1, a first sealing material 3 (polyurethane foam) is arranged in the grooves 5, and the polyurethane foam can bond the outer window main frame 2 and the wall body 1 in a structure, so that the effect of stability and sealing is achieved. Because the wall body 1 structure comprises multilayer structure, in order to prevent that the sealed effect between layer structure and the outer window main frame 2 is not good, the cover is equipped with fossil fragments post frame 18 on the cotton + fossil fragments post 17 structure of heat preservation of wall body to first sealing material 3 is direct with fossil fragments post frame 18 and recess 5 direct contact, improves sealed effect, prevents the seepage.

Inside wall body 1 still is provided with the windowsill structure, the windowsill structure includes windowsill 6 and lower windowsill 7, wherein go up windowsill 6 and lower windowsill 7 and all include horizontal platform 6.1 and vertical platform 6.2, horizontal platform 6.1 is direct with the inboard of outer window main frame 2 and the direct butt of the individual layer face of wall body 1 structure form the binding off, vertical platform 6.2 is direct with the medial surface laminating of wall body 1 forms the binding off, horizontal platform 6.1 and vertical platform 6.2 form right angle structure, the binding off department of horizontal platform 6.1 and outer window main frame 2 of windowsill and the binding off department of vertical platform 6.2 and wall body 1 inboard all are provided with third sealing material 8, the sealing gum can be adopted in the third sealing material 8 specifically.

The waterproof and anti-leakage effect between the outer window node and the house wall 1 is realized by arranging a three-layer sealant structure (a first sealant 3, a second sealant 4 and a third sealant 8).

In the outer structure of the wall body 1, the water flowing strip 11 is flush with the outer surfaces of the decorative frame body 9 and the outer window main frame 2, a first gap 10 is reserved between the water flowing strip 11 and the wall body 1 structure outside the water flowing strip and the upper surface of the upper decorative frame 9.1 as shown in fig. 1 or 3, and a second gap 19 is reserved between the water flowing strip and the lower surface of the lower decorative frame 9.2 as shown in fig. 1 or 4.

The upper decorative frame 9.1 is also provided with a flashing board 12 in the position of the water-guiding strip 11, the flashing board 12 comprises two sections, one section is a vertical section 12.1, the other section is an inclined section 12.2, the vertical section 12.1 of the flashing board 12 is clamped between the water-guiding strip 11 and the keel column frame 18, water discharged from the water-guiding strip 11 can be prevented from leaking to the keel column structure at the inner side of the wall body 1, the inclined section 12.2 is arranged in the first gap 10, the vertical section 12.1 and the inclined section 12.2 of the flashing board 12 are of an integral structure, the inclined direction of the inclined section 12.2 is inclined downwards from the inner side of the wall body 1 to the outer side of the wall body 1, the inclined angle is generally about 15 degrees, the end part of the inclined section 12.2 extends to the outer side of the wall body 1, water discharged from the water-guiding strip 11 and rainwater flowing down from the outer side surface of the wall body 1 can be directly guided away through the inclined section 12.2, and the rainwater is prevented from remaining between the upper surfaces of the upper decorative frame 9.1, so that the leakage phenomenon caused by the rainwater is reduced.

In addition, the inclined direction of the upper surface of the lower decorative frame 9.2 is also obliquely downwards arranged from indoor to outdoor, so that rainwater flowing down on a window can be directly and timely guided away, the rainwater is prevented from accumulating on the upper surface of the lower decorative frame 9.2, and a drip groove 13 is further arranged on the lower surface of the lower decorative frame 9.2, and because the lower surface of the lower decorative frame 9.2 is horizontally arranged, when accumulated water or rainwater slides from the upper surface to the lower surface of the lower decorative frame 9.2, the rainwater can fall off on the lower surface of the lower decorative frame 9.2, but partial accumulated water can flow to the inner side of the wall body 1 along the lower surface of the lower decorative frame 9.2 and then enter the inner structure of the wall body 1, so that the drip groove 13 is mainly used for preventing the rainwater from flowing down along the lower decorative frame 9.2 and blocking the inner surface of the wall body 1. The drip 13 is disposed on the outer vertical surface of the wall 1 and outside the wall, so that the drip 13 cannot be disposed on the outer vertical surface near the inner side of the wall 1, and water is prevented from dripping from the drip 13 into the second gap 19 and then entering the wall 1.

In addition, as shown in fig. 4 and 5, an insect-proof net 14 is further provided at the position of the water-running strip 11, and since the inside of the water-running strip 11 is hollow, it is easy for insects such as termites to enter and damage the structure of the wall 1, so that insects are prevented from entering the water-running strip 11 by the insect-proof net 14. The insect-proof net 14 is provided with two, one is arranged in the water-following strip 11 of the upper side of the first gap 10, and the insect-proof net 14 is arranged in a U-shaped structure, and a sealing adhesive tape 15 is further arranged between the insect-proof net 4 and the flashing plate 12 to prevent water seepage or water vapor from entering the wall body 1 and damage the wall body 1. Also, an insect-proof net 14 is arranged in the water-flowing strip 11 at the lower side of the second gap 19, the insect-proof net 14 is arranged in an n-type structure, and a ventilation strip 20 is arranged at the structure of the wall body 1 outside the water-flowing strip 11 at the lower side.

Finally, the hollow glass 16 window structure is embedded in the outer window main frame 2, sealing glue is needed to be adopted at the joint of the outer window main frame 2 and the glass 16 for sealing connection, the anti-seepage effect is achieved, the glass 16 window is designed by double-layer glass 16, the sound insulation and heat insulation effects can be achieved, and certain waterproof anti-seepage effects can be achieved.

Claims (10)

1. The utility model provides a waterproof structure of outer window node, includes wall body and outer window main frame, the wall body is embedded has outer window main frame, its characterized in that is equipped with first sealing material between outer window main frame and the wall body, the outside of outer window main frame and the outside of wall body are equipped with the decoration framework, the decoration framework with outer window main frame with all be equipped with second sealing material between the wall body.

2. The outer window joint waterproof structure according to claim 1, wherein a groove is formed in a side, connected with the wall, of the outer window main frame, and the first sealing material is arranged in the groove.

3. The outer window node waterproof structure according to claim 2, wherein an upper window sill and a lower window sill are further arranged on the inner side of the outer window main frame and the inner side of the wall body, and a third sealing material is arranged between the upper window sill and the lower window sill and between the outer window main frame and the wall body.

4. A waterproof construction for an outer window according to any one of claims 1 to 3, wherein the decorative frame body comprises an upper decorative frame, a first gap is provided between an upper surface of the upper decorative frame and the wall body, and a water-flowing strip is provided inside the wall body at a position corresponding to the first gap.

5. The outer window node waterproof structure according to claim 4, wherein a flashing plate is arranged between the water flowing strip and the upper surface of the upper decorative frame, the flashing plate comprises a vertical section and an inclined section, the vertical section is embedded in the wall body, the inclined section is arranged between the upper surface of the upper decorative frame and the wall body, and the inclined direction is from the inner side to the outer side of the wall body downwards.

6. The outer window node waterproof structure according to claim 4, wherein the decorative frame body further comprises a lower decorative frame, the upper surface of the lower decorative frame is obliquely arranged, and the oblique direction is downward from the inner side to the outer side of the wall body.

7. The outer window node waterproof construction of claim 6, wherein a drip groove is provided on a lower surface of the lower decorative frame.

8. The waterproof structure of an outer window node according to claim 5, wherein an insect-proof net is further provided in the water-running strip and near the decorative frame.

9. The waterproof construction of an outer window node according to claim 8, wherein a sealing tape is provided between the insect-proof net and the flashing plate.

10. The outer window node waterproof structure of claim 9, wherein glass is arranged in the outer window main frame, and the glass is connected with the outer window main frame in a sealing manner.