CN2711652Y

CN2711652Y - Door seal

Info

Publication number: CN2711652Y
Application number: CN 200420070894
Authority: CN
Inventors: 雷莉; 高瑞喜; 胡哲
Original assignee: Guangdong Kelong Electrical Appliances Co Ltd
Current assignee: Guangdong Kelong Electrical Appliances Co Ltd
Priority date: 2004-06-21
Filing date: 2004-06-21
Publication date: 2005-07-20
Anticipated expiration: 2014-06-21

Abstract

The utility model relates to a door seal. The door seal comprises two or more than two sealed air bags (2) which are enclosed by soft plastics, support edges (4), and installing angles on the lower sides of the support edges. The support edges (4) and the roots (6) of the installing angles are extruded by hard plastic materials. The processing craft of soft and hard common extrusion is adopted by the utility model to make the door seal has favorable sealed performance; meanwhile, an installing fixing position has ample hardness. The door seal has easy installation and firm fixing. The utility model also can be widely applied to the door seals of the domestic appliances of a refrigerator, a disinfection cupboard, etc.

Description

A kind of envelope

Technical field

The utility model relates to a kind of door weather strip that is applied on the product such as refrigerator, more particularly, relates to a kind of polyvinyl chloride (PVC) door envelope.

Background technology

Refrigerator is as the household electrical appliance of refrigeration, frozen food, and chamber between it (particularly refrigerating chamber) and the external environment temperature difference are very big, therefore, installs on the door of refrigerator that heat-proof quality is good, the service-strong door weather strip just seems particular importance.In the existing refrigerator, general at least one door weather strip that adopts, door weather strip is made of established angle, magnetic stripe chamber and a plurality of heat insulation air bag, and most of envelopes are wholely to extrude with flexible PVC, the door envelope is soft, on the metal thin-wall of magnetic stripe than the refrigerator body that is easier to adhesive.But this door be enclosed in install and use in because the door envelope is softer, make fitting operation extremely inconvenient, for example: also come off easily etc. even the established angle of door envelope is not easy to snap into to load onto reluctantly in the mounting groove of an envelope.The second, the door envelope is yielding, also occurs easily causing chill mark owing to stretch, and influences refrigerator overall appearance quality.The 3rd, after door envelope is used a period of time, get loose from the door sealing groove easily that it is not tight to cause closing the door, the refrigerator available machine time even unusual icing frosting situation occurs of having extended.

The utility model content

The technical problems to be solved in the utility model provides a kind of envelope excellent sealing performance that can keep, is easy to again to install and the door envelope of difficult drop-off, to overcome the deficiencies in the prior art.

For solving the problems of the technologies described above, the utility model provides a kind of envelope, comprise that two or more surround pressure bladder 2, support edge 4 and the established angle below the support edge that forms by soft moulding, the root 6 of described support edge (4) and established angle is extruded by hard moulding material.

In the above-mentioned door envelope, described door envelope is provided with the magnetic chamber of moulding encirclement with soft, the indoor magnetic stripe 1 of putting of magnetic.Described door envelope is provided with fin 5.Described fin 5 is extruded by soft-plastic material.The top 7 of described established angle is extruded by hard moulding material.Described hard moulding material is a RPVC; Described soft-plastic material is soft PVC or thermoplastic elastomer (TPE).The layering coextrusion mold is moulded and moulded firmly to described door envelope by soft.

The utility model compared with prior art has the following advantages and beneficial effect:

1. door envelope air bag of the present utility model partly adopts soft elastic material, has guaranteed the air-tightness of door envelope; The support edge and the established angle of door envelope adopt hard material, and the mounting part has certain rigidity, make an envelope be easy to install, and be fixed.

2. the door envelope adopts the processing technology of soft-hard coextrusion, carries out bilayer or multi-layer co-extruded moulding by two single screw extrusion machines, the door envelope steady quality of extruding, flat appearance.

Description of drawings

Fig. 1 is the structural representation of a kind of envelope of the present utility model.

The specific embodiment

The utility model is mainly used in the sealing seal strip for refrigerator door made from PVC plastic materials such as (polyvinyl chloride).Referring to Fig. 1, be used for the Men Tiyu casing is pulled together at the indoor magnetic stripe 1 of magnetic, magnetic stripe 1 is wrapped up by flexible PVC, on magnetic stripe 1 next door three air vesicles 2 is arranged, and also has two ballonets 3 at root, and the effect of many airbag structures is effectively to intercept cold air to leak outside.Magnetic chamber, large and small air bag surround by soft-plastic material and form, and have certain pliability and elasticity.Be support edge 4 below ballonet 3, support edge 4 connects ballonet and established angle, and 4 the outside also has fin 5 in the support edge, and fin 5 is used to cover the flanging part of a courage, makes this position seem smooth attractive in appearance.Established angle is divided into top 7 and root 6, and top 7 is the fishbone shape, and root 6 is connected with support edge 4.When mounted, established angle snaps in the mounting groove of an envelope.

Support edge 4 is hard PVCs with established angle root 6 materials, has enough hardness and intensity, supporting whole door envelope, and can guarantee that door is enclosed in and is not easy distortion in the installation process.The material at the top 7 of fin 5 and established angle can select for use hard PVC or be soft pvc (or low temperature resistant modified PVC, TPE thermoplastic elastomer (TPE) etc. have the plastic material of certain flexibility).Fin 5 is generally selected flexible PVC for use, can cover in the flanging of a courage naturally.If what select for use is hard PVC, then outward appearance is comparatively smooth, but requires door courage limit more smooth simultaneously, if projection is arranged, fin 5 can perk.The established angle top material is selected hard PVC for use, is not easy to come off after snapping in mounting groove, but need exerts oneself slightly when mounted; If alleviate the labour intensity of installation, the established angle top material can be selected soft-plastic material for use, but select for use soft mould to mould easily more firmly come off.Gasket of the present utility model can carry out bilayer or multiple layers of different materials coextrusion mold by two single screw extrusion machines, makes the installation position of door envelope have certain intensity and the air bag position has enough flexibilities.

Claims

1. a door envelope comprises that two or more surround pressure bladder (2), support edge (4) and the established angle below the support edge that forms by soft moulding, and it is characterized in that: the root (6) of described support edge (4) and established angle is extruded by hard moulding material.

2. door envelope according to claim 1 is characterized in that: described door envelope is provided with the magnetic chamber of moulding encirclement with soft, the indoor magnetic stripe (1) of putting of magnetic.

3. door envelope according to claim 2 is characterized in that: described door envelope is provided with fin (5).

4. door envelope according to claim 3, it is characterized in that: described fin (5) is extruded by soft-plastic material.

5. door envelope according to claim 3, it is characterized in that: the top of described established angle (7) are extruded by hard moulding material.

6. according to claim 1 or 2 or 3 or 4 or 5 described door envelopes, it is characterized in that: described hard moulding material is a RPVC; Described soft-plastic material is soft PVC or thermoplastic elastomer (TPE).

7. door envelope according to claim 6 is characterized in that: the layering coextrusion mold is moulded and moulded firmly to described door envelope by soft.