CN201710122U

CN201710122U - Gravity safety valve

Info

Publication number: CN201710122U
Application number: CN201020202809XU
Authority: CN
Inventors: 陆英武
Original assignee: Dongguan Bubugao Electrical Appliances Co Ltd
Current assignee: Zhejiang Taizhou Aishida Electrical Equipment Co Ltd
Priority date: 2010-05-21
Filing date: 2010-05-21
Publication date: 2011-01-19
Anticipated expiration: 2020-05-21

Abstract

The utility model discloses a gravity safety valve which comprises a valve body, a plastic part tightly coated on the inner wall and bottom surface of the valve body, and a plastic shell tightly coated on the outer wall of the valve body and provided with a valve handle, wherein the plastic part is internally provided with an exhaust pipe provided with an air vent; an elastic sealing body used for sealing the air vent is arranged at a position on the upper end surface of the plastic part opposite to the exhaust pipe; the bottom surface of the elastic sealing body is a plane and covers the upper end port of the air vent of the exhaust pipe, or the bottom surface of the elastic sealing body is convex or concave and covers the upper end port of the air vent of the exhaust pipe; the elastic sealing body is embedded or pasted on the upper end surface of the plastic part; and an exhaust hole, which passes through the plastic shell, is arranged on the upper end surface of the plastic part. The gravity safety valve is processed simply, has low production cost and good sealing property, is not damaged easily, and has long service life.

Description

A kind of gravity safety valve

Technical field

The utility model relates to a kind of safety valve, the gravity safety valve of using on specifically a kind of electric pressure cooking saucepan.

Background technology

At present, the pressure limiting valve version of electric pressure cooking saucepan is various on the market, is difficult for getting rusty in order to make pressure limiting valve, adopts usually on the inwall of iron valve body plastic body to be set, and again the spool that is used to blocking up pore on the valve rod is being installed on the plastic body.Though solving pressure limiting valve to a certain extent, this type of version easily gets rusty, the easy problem of damaging, and processed complex, cost is higher.China Patent No. 012168033, name are called the electric pressure cooking saucepan safety valve, are equally to comprise iron valve body, the stifled anticorrosion cover that is provided with in the valve body that reaches of seal spool.The seal spool of above-mentioned patent is stifled all to need processing alone, assembles with valve body after machining again, process numerous and diverse, cost height, and the hole domestic demand on valve rod top is provided with sealing ring.

The utility model content

Problem to be solved in the utility model provides that a kind of processing is simple, cost is low, and not fragile, long service life are mainly used in the gravity safety valve on the electric pressure cooking saucepan.

In order to solve the problems of the technologies described above, the utility model is taked following technical scheme:

A kind of gravity safety valve, comprise valve body, tightly be overlying on the plastic parts of the bottom surface of this valve interior wall, and the plastic shell that tightly is overlying on the band valve handle of this valve outer wall, be equiped with the blast pipe of band passage in the plastic parts, described plastic parts upper surface is provided with the elastic sealed body that is used to block passage over against the blast pipe position.Wherein, the elastic sealed body bottom surface is the plane, and covers the upper port of blast pipe passage.Perhaps, protruding or fovea superior under the elastic sealed body bottom surface, and cover the upper port of blast pipe passage.

Described elastic sealed body is the silica gel sealing body.This elastic sealed body is with setting-in or bonding method and the attaching of plastic parts upper surface.For better exhaust, on the plastic parts upper surface, offer the steam vent that connects plastic shell.

In addition, according to actual conditions, plastic parts inwall bottom entad convexes with the buckle that is used to block blast pipe.Perhaps offer cannelure in plastic parts inwall bottom, installing is used to tighten up the jump ring of valve body and plastic parts in this cannelure.

The utility model has reduced the setting of sealing ring in the blast pipe, by seal is set on plastic parts, realizes sealing up the purpose of the passage on the blast pipe, promptly realizes the soft plugging structure with seal shutoff passage.Processing is simple, and is easy to assembly, effectively reduces production cost; The damage that is difficult for getting rusty, long service life.

Description of drawings

Accompanying drawing 1 is the utility model embodiment one cross-sectional view; Accompanying drawing 2 is the utility model embodiment two cross-sectional view; Accompanying drawing 3 is the utility model embodiment three structural representations.

The specific embodiment

For the ease of those skilled in the art's understanding, the utility model will be further described below in conjunction with accompanying drawing.

As shown in Figure 1, a kind of gravity safety valve, comprise valve body 1, tightly be overlying on the plastic parts 2 of the bottom surface of this valve body 1 inwall, and the plastic shell 3 that tightly is overlying on the band valve handle of this valve body 1 outer wall, be equiped with the blast pipe 4 of band passage 41 in the plastic parts 2, described plastic parts 2 upper surfaces are provided with the elastic sealed body 5 that is used to block passage 41 over against blast pipe 4 positions.

Embodiment one, and as shown in Figure 1, elastic sealed body 5 bottom surfaces are the plane, and can cover the upper port of blast pipe 4 passages 41 fully.Plastic parts 2 inwall bottoms entad convex with the buckle 7 that is used to block blast pipe 4.

Embodiment two, and as shown in Figure 2, elastic sealed body 5 bottom surfaces are the plane, and can cover the upper port of blast pipe 4 passages 41 fully.Offer cannelure in plastic parts 2 inwall bottoms, installing is used to tighten up the jump ring 8 of valve body 1 and plastic parts 2 in this cannelure.

Embodiment three, and is protruding under elastic sealed body 5 bottom surfaces as shown in Figure 3, and covers the upper port of blast pipe 4 passages 41 fully, also can as required the elastic sealed body bottom surface be made as fovea superior.Several cardiac prominences in plastic parts 2 inwall bottoms are provided with the buckle 7 that is used to block blast pipe, certainly, also can offer cannelure in plastic parts 2 inwall bottoms, and installing is used to tighten up the jump ring 8 of valve body 1 and plastic parts 2 in this cannelure.Protruding camber face also can be descended in the elastic sealed body bottom surface in the present embodiment, or other matched shape, and described enumerating not is to be to limit.

In addition, as the further improvement to the scheme mentioned among the above embodiment, elastic sealed body 5 also offers the steam vent 6 that connects with plastic shell 3 with setting-in or bonding method and plastic parts 2 attachings in the upper surface of plastic parts 2, and exhaust effect is good.

Operation principle is, when the pressure in the electric pressure cooking saucepan during less than valve body 1 self gravitation, the elastic sealed body 5 on the plastic parts 2 tightly oppressing blast pipe 4, block passage 41 upper port of blast pipe 4, gas is not leaked.When the pressure in the electric pressure cooking saucepan during greater than valve body 1 self gravitation, gas in the electric pressure cooking saucepan upwards promotes valve body 1 by the passage 41 in the blast pipe 4, make on the valve body 1 and move, elastic sealed body 5 leaves blast pipe 4, gas is discharged by passage 41, gap through 4 of steam vent 6 and valve body 1 and blast pipes is discharged in the external world, realizes the decompression of electric pressure cooking saucepan.When the pressure in the electric pressure cooking saucepan during again less than valve body 1 self gravitation, valve body 1 moves down, and elastic sealed body 5 is being oppressed passage 41 again, prevents gas leak, according to this circulation.

Need to prove, under the prerequisite that does not break away from the present utility model design, the utility model is made some be equal to replacement or direct replacement, all within protection domain of the present utility model.

Claims

1. gravity safety valve, comprise valve body (1), tightly be overlying on the plastic parts (2) of the bottom surface of this valve interior wall, and the plastic shell (3) that tightly is overlying on the band valve handle of this valve outer wall, be equiped with the blast pipe (4) of band passage (41) in the plastic parts, it is characterized in that: described plastic parts upper surface is provided with the elastic sealed body (5) that is used to block passage over against the blast pipe position.

2. gravity safety valve according to claim 1 is characterized in that: described elastic sealed body bottom surface is the plane, and covers the upper port of blast pipe passage.

3. gravity safety valve according to claim 1 is characterized in that: protruding or fovea superior under the described elastic sealed body bottom surface, and cover the upper port of blast pipe passage.

4. according to claim 1 or 2 or 3 described gravity safety valves, it is characterized in that: described elastic sealed body is the silica gel sealing body.

5. gravity safety valve according to claim 4 is characterized in that: described elastic sealed body is with setting-in or bonding method and the attaching of plastic parts upper surface.

6. gravity safety valve according to claim 5 is characterized in that: described plastic parts upper surface offers the steam vent (6) that connects plastic shell.

7. according to claim 1 or 2 or 3 described gravity safety valves, it is characterized in that: the plastic parts inwall bottom that described elastic sealed body is housed entad convexes with the buckle (7) that is used to block blast pipe.

8. according to claim 1 or 2 or 3 described gravity safety valves, it is characterized in that: the plastic parts inwall bottom that described elastic sealed body is housed offers cannelure, and installing is used to tighten up the jump ring (8) of valve body and plastic parts in this cannelure.