CN105020893A

CN105020893A - Multi-layer blow molding electric water heater inner container

Info

Publication number: CN105020893A
Application number: CN201410174150.4A
Authority: CN
Inventors: 刘运柳
Original assignee: Guangdong Shunde Guangsheng Electrical Appliance Co Ltd
Current assignee: Guangdong Shunde Guangsheng Electrical Appliance Co Ltd
Priority date: 2014-04-21
Filing date: 2014-04-21
Publication date: 2015-11-04

Abstract

The invention discloses an electric water heater inner container manufactured through a multi-layer blow molding technology. Multi-layer blow molding is characterized in that when blowing molding is carried out, the inner container is made of one or more layers of materials with different properties and is molded at a time, so that the heat deformation temperature and strength can be improved; and if the requirement for the strength is met, single-layer blow molding is also allowed. Meanwhile, the outer surface of the plastic inner container is locally or wholly wrapped with a metal thin sheet, and force bearing points connected with and hanging on an outer shell are manufactured on the metal thin sheet.

Description

The inner container of electric water heater of multilayer blow moulding

Technical field

The present invention relates to the inner container of electric water heater of multilayer blow moulding, relate generally to inner bag that the is closed or manufacture of outlet open-type plastic material, and outside at it, the structure of local or all parcel layer of metal thin plate.

Background technology

China Patent Publication No. CN101968263A discloses " water heater liner of hollow blow molding ", and this patent application exists following defect:

1, this patent application claims 1 " upper design more than three chimbs (2) of sidewall (1) of cylinder body ", this kind of structure, after in-built hot water, water tank can expand and extend, and can not use.

2, this patent application claims 4 " vertical (axis is at vertical direction) opens a hole (6) in the center of its lower surface (5) "; Claim 5 " (axis in the horizontal direction) of horizontal type opens a hole (6) in the center of its side (1) "; Finding out from accompanying drawing 1 and accompanying drawing 2, is all flat mouth inside and outside hole (6), this opening mode, and current any unit or individual cannot make the close packaged water of the water heater liner of this patent application, more can not pressure-bearing.

3, according to GB4706.12-200622,101 " closed water heaters be directly connected with water source, its rated pressure at least should be 0.6Mpa, and test pressure is 2 times, i.e. 1.2Mpa "; The inner bag of this patent application can not bear this pressure, can not make closed water heater.

4, the water heater liner of the hollow blow molding of this patent application, must bear the suspended weights of 50-100kg, and must be connected with shell, this patent application no this item functional description after dress water.

In sum, this patent application does not obviously possess three property principles of patent, and do not have practicality, described practicality refers to that this invention can manufacture or use, and can produce good effect, but this patent application can not create practical product at all.

Summary of the invention

The present invention improves " water heater liner of hollow blow molding ", adopt multilayer blow moulding manufacture technics inner bag, be made up of the above different materials of one deck when described multilayer blow moulding refers to wall of inner container blowing, send into the different raw material of several performance with multiple hopper simultaneously, and be disposal molding, in order to improve heat distortion temperature and intensity, if monolayer blown is also passable when can meet intensity; Meanwhile, at plastic inner container appearance local or whole parcel layer of metal thin plates, it is shaped with the hard point being connected with shell and hanging.

Need in plastic inner container to install various parts, therefore inner bag one end should have hole, hole 3 has flange to the horn-type structure extended out; With lid 5 and two semicircle clamp clips 6 splitting to the encapsulating method at aperture 3 place of trumpet type, by multiple screw 8 by having flange and clamping to the tubaeform mouth 3 extended out and blind flange 4 on seal 7 and plastic inner container, ensure that bearing setting pressure does not leak.

Advantage of the present invention substitutes steel with plastics, can reduce manufacturing cost; Do not need the workman be skilled in technique, and intensity is high simultaneously, bears pressure large, can not leak, improve product quality.

Accompanying drawing explanation

Fig. 1 has flange to the multilayer of the tubaeform mouth extended out or monolayer plastic inner bag schematic diagram;

Fig. 2 is Figure 1A-A sectional view;

Fig. 3, Fig. 4 plastic inner container sealed structural representation;

Detailed description of the invention

Be described below in conjunction with accompanying drawing, electric heater plastic inner container 1 in accompanying drawing, with connect and hang hard point sheet metal 2, have flange to the horn mouth 3 (or claiming hole 3) extended out, flange part 4, lid 5, two semicircle clamping elements 6, seal 7, screw 8, multilayer or monolayer blown wall of inner container 9, hang hard point 10, electrothermal tube 11.

Fig. 1 is the inner container of electric water heater of multilayer or individual layer, and at plastic inner container 1 appearance local or whole sheet metal 2 wrapped up with connecting and hang hard point 10.

Flange is shaped with to the tubaeform mouth 3 (or claiming hole 3) extended out in Fig. 1, on the right side of plastic inner container, Fig. 3, Fig. 4 are the structural representations that flange carries out to the tubaeform mouth extended out sealing, there is flange to mounting flange part on the tubaeform mouth 3 extended out 4 (flange part 4 can fill electrothermal tube, temperature tube or limit warm temperature controller), with lid 5 and two semicircle clamp clips 6 splitting, with multiple screw 8 by having flange and clamping to the tubaeform mouth 3 extended out and flange part 4 on seal 7 and plastic inner container, form closed container.

The present invention is applicable to vertical and horizontal various electric heater.

Claims

1. the inner container of electric water heater of multilayer blow moulding, is characterized in that: 1. plastic inner container, is made up of the material of more than one deck (containing one deck) different performance; 2. plastic inner container appearance local or all parcel layer of metal thin plate (2), it is shaped with the hard point (10) being connected with shell and hanging; 3. plastic inner container one end has flanged limit, and the oriented tubaeform mouth (3) extended out.

2. according to claim 1, the inner container of electric water heater of multilayer blow moulding, it is characterized in that: be with lid (5) and two semicircular clamp clips (6) of splitting to the encapsulating method of flaring aperture (3), by multiple screw (8) by having flange and to the tubaeform mouth (3) extended out and blind flange (4) clamping, guaranteeing to leak on seal (7) and plastic inner container.