CN203094718U

CN203094718U - Sealing valve

Info

Publication number: CN203094718U
Application number: CN 201220749214
Authority: CN
Inventors: 束建军
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-12-28
Filing date: 2012-12-28
Publication date: 2013-07-31
Anticipated expiration: 2022-12-28

Abstract

The utility model relates to a sealing valve. The sealing valve comprises an upper sealing element and a lower sealing element, wherein the upper sealing element is a round pad, the lower sealing element is a conical table body, and the conical table body structurally comprises a conical base and a table body. The sealing valve is characterized in that the peripheral wall of the upper sealing element round pad is thick, the middle wall of the round pad is thin, the thick portion of the peripheral wall is a round ring, a conical downward protrusion is formed in the middle of the round pad to serve as a first sealing portion, an upward protruded strong rib is arranged between the conical downward protrusion and the thick wall, an air hole is formed in the middle of the lower sealing element conical table body, the air hole is conical, the lower portion of the air hole is cylindrical, the conical table body comprises the conical portion and the table body portion, a groove which corresponds to the downward protrusion of the first sealing portion is formed in the conical portion, and a second sealing groove which corresponds to the strong rib is formed in the table body portion. Due to the adoption of the technical scheme, the sealing valve is simple in process, good in using performance, and low in manufacturing cost.

Description

A kind of seal valve

Technical field

The utility model relates to a kind of daily necessities, parts on the crisper specifically, especially a kind of seal valve.

Background technology

Occur a kind of crisper in the market, can get rid of air in the box, make to be in negative pressure state in the box, thereby prolong fresh keeping time by a kind of device on the lid.A core component of this device is a seal valve, it adopts the silica type flexible material to make (as shown in Figure 1 and Figure 2) usually, its structure is made up of back seal spare and lower seal, and back seal spare is a planchet 2, and there is a taper projection 3 at the planchet middle part, lower seal is a circular cone stage body 1, at the bottom of the circular cone stage body reference cone 4 and stage body 5, be provided with one at the stage body top and enclose back power muscle 6, though this structure can better reach emptying and leak free purpose, but complex process requirement on machining accuracy height, the cost of manufacture height.

Summary of the invention

At above-mentioned existing problems, the utility model provides a kind of seal valve, and the change by structure has reduced cost of manufacture, and technology is simple simultaneously, and in-use performance is better.

In order to reach above purpose, the utility model is taked following technical scheme, a kind of seal valve, comprise back seal spare and lower seal, described back seal spare is a planchet, described lower seal is the circular cone stage body, at the bottom of the frustum of a cone body structure reference cone and stage body, it is characterized in that: wall thickness around the described lower seal planchet, midfeather is thin, and the wall thickness place is an annulus all around, it is the first sealing position that there is a taper lower convexity at the planchet middle part, the powerful muscle that projection on is arranged between taper lower convexity and the heavy wall, it is taper that there are a pore, pore top in described back seal spare circular cone stage body middle part, the bottom is a column, circular cone stage body reference cone shape position and stage body position, taper position are provided with the groove of the corresponding first sealing position lower convexity, and the stage body position is provided with second sealed groove of corresponding powerful muscle.Because the utility model has been taked above technical scheme, technology is simple, and in-use performance is good, and cost of manufacture is low.

Description of drawings

Fig. 1 is the structural representation of conventional seals valve back seal spare

Fig. 2 is the structural representation of conventional seals valve lower seal

Fig. 3 is the structural representation of the utility model seal valve back seal spare

Fig. 4 is the structural representation of the utility model seal valve lower seal

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Embodiment one

As shown in Figure 3, a kind of seal valve, comprise back seal spare 2 and lower seal 1, described back seal spare is a planchet, described lower seal is the circular cone stage body, at the bottom of the frustum of a cone body structure reference cone 4 and stage body 5, it is characterized in that: wall thickness around the described lower seal planchet, midfeather is thin, the wall thickness place is an annulus 6 all around, and it is the first sealing position that there is a taper lower convexity 3 at the planchet middle part, and the powerful muscle 7 of projection on is arranged between taper lower convexity and the heavy wall, there is a pore 10 at described back seal spare circular cone stage body middle part, pore top is taper, and the bottom is a column, circular cone stage body reference cone shape position 11 and stage body position 12, the taper position is provided with the groove 9 of the corresponding first sealing position lower convexity, and the stage body position is provided with second sealed groove 8 of corresponding powerful muscle.In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.

Claims

1. seal valve, comprise back seal spare and lower seal, described back seal spare is a planchet, described lower seal is the circular cone stage body, at the bottom of the frustum of a cone body structure reference cone and stage body, it is characterized in that: wall thickness around the described lower seal planchet, midfeather is thin, the wall thickness place is an annulus all around, it is the first sealing position that there is a taper lower convexity at the planchet middle part, the powerful muscle that projection on is arranged between taper lower convexity and the heavy wall, it is taper that there are a pore, pore top in described back seal spare circular cone stage body middle part, the bottom is a column, circular cone stage body reference cone shape position and stage body position, taper position are provided with the groove of the corresponding first sealing position lower convexity, and the stage body position is provided with second sealed groove of corresponding powerful muscle.