CN201457987U

CN201457987U - One-way valve on vacuum refreshing container

Info

Publication number: CN201457987U
Application number: CN2009200661403U
Authority: CN
Inventors: 王以东; 汤亚平; 何宜欣; 杨春林
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-09-17
Filing date: 2009-09-17
Publication date: 2010-05-12
Anticipated expiration: 2019-09-17

Abstract

The utility model relates to a one-way valve on a vacuum refreshing container, which comprises a valve cap, a valve block and a valve seat, wherein the valve seat is in a circular truncated cone shape and is provided with a round hole at the center, the center of the valve cap is provided with a round hole, the valve block is positioned in the valve seat, the valve cap is positioned above the valve block and can be combined with the valve seat into a whole, the valve block is in a circular truncated cone, or a ball head arc or a W trapezoid or semi-sphere downwards-tensioning cone or a T shape, the valve block is a silicon rubber membrane, and upwards-pressing or downwards-pulling pretension is set. The one-way valve is arranged on a vacuum refreshing bag or a vacuum container which is evacuated aiming at an extracting hole on the one-way valve by using a vacuum pump, an exhaust hole is closed under the action of the one-way valve to enable the vacuum refreshing bag or the vacuum container to be sealed, thereby maintaining the vacuum degree and achieving the effect of refreshing foodstuff or foods.

Description

Check valve on the vacuum freshness retaining container

Technology neck city

The utility model relates to the check valve on a kind of vacuum freshness retaining container, refers in particular to the check valve on food fresh keeping bag or the fresh-keeping bowl.

Background technology

At present, mainly contain hydraulic control one-way valve, glass check valve, hydraulically-controlled one-way valve, connection mode has through type to be connected with right-angle type, form by materials such as metal, plastic cement, glass, be widely used in industrial every field, realize hydraulic pressure, air pressure, electronic control, complex structure, accuracy requirement height, manufacturing cost height are not suitable for freshness protection package, the freshness preserving gadget of the fresh-keeping needs of family.Existing be used for being made up of last lower disc bivalve chip check valve on the freshness protection package, tightness is not high, bleed slowly.The utility model relates to the check valve on a kind of vacuum freshness retaining container, comprises valve gap, valve block, valve seat, and valve seat is a truncated cone-shaped, and there is circular hole at its center; The valve gap center has circular hole, valve block is positioned at valve seat, valve gap be positioned at valve block on can be combined as a whole with valve seat, valve block is a truncated cone-shaped or bulb is arc or W is trapezoidal or hemispherical down tension taper or T shape, simple in structure, tightness good, low cost of manufacture, reliability and durability convenient, valve block is a silica gel spare, and pressure or drop-down pretension are crossed 0 site in the employing, realizes bleeding and sealing.Can be widely used in and realize vacuum packaging on the vacuum freshness retaining utensil.

The utility model content

The purpose of this utility model is to provide the check valve on a kind of household fresh-keeping container.

The purpose of this utility model is achieved through the following technical solutions: check valve comprises valve gap, valve block, valve seat, and valve seat is a truncated cone-shaped, and there is circular hole at its center; The valve gap center has circular hole, and valve block is positioned at valve seat, valve gap be positioned at valve block on can be combined as a whole with valve seat, valve seat and PE bag or antistaling container heat are melted and are connected as one, valve block is a truncated cone-shaped or bulb is arc or W is trapezoidal or hemispherical tension taper or T shape down.

Valve block is the indent truncated cone-shaped, and cock places in the concave surface at valve gap top and with valve gap and is threaded, and fixes with straight pin, and bonnet lower is provided with the groove tension fit in a bulge loop and the valve seat, and cock extruding valve block seals the circular hole of valve seat.

Check valve sheet is that bulb is arciform, and thin circular, there is the semi-round ball salient its underpart, has vent on the valve block, and valve block is a silaatic spare, and valve gap is pressed in valve block on the valve seat, and the hemisphere face under the valve block is at the exhausr port that presets tension force and atmospheric effect lower seal valve seat.

The valve block section is a W shape, and the valve gap center is provided with the fixed orifice that valve block is installed, and its both sides have aspirating hole, and the valve block of W shape contacts with valve seat in-to-in cascaded surface, and valve block is the silaatic product, closed valve seat exhausr port under certain precompressed compression effect.

Valve block top is hemispherical, connects bottom one spheroid by a cylinder, and the valve block bottom be cone-shaped, the uniform horizontal exhaust hole in valve seat bottom, and the valve block lower end passes that the conical surface of its hemisphere face and valve seat aperture fits tightly behind the valve base center hole, and formation seals.

The valve block section is a T shape, connects bottom one spheroid by a cylinder, and the valve block bottom is cone-shaped, and valve block is the silaatic product, and the inner plane that valve seat bottom outlet and valve seat are passed in the valve block bottom fits tightly the formation sealing.

Check valve is arranged on vacuum fresh-keeping bag or the vacuum vessel, extracts vacuum out with the bleeding point that vacuum pump is aimed on the check valve, and airtight row's mouth makes vacuum fresh-keeping bag or vacuum vessel keep degree of vacuum under the effect of check valve, reaches the effect of food or food fresh-keeping.

Description of drawings

Fig. 1 is truncated cone-shaped check valve assembling scheme drawing;

Fig. 2 is a truncated cone-shaped check valve generalized section;

Fig. 3 is the arciform check valve assembling of a bulb scheme drawing;

Fig. 4 is the arciform check valve generalized section of bulb;

Fig. 5 is the trapezoidal check valve assembling of a W scheme drawing;

Fig. 6 is the trapezoidal check valve generalized section of W

Fig. 7 is the hemispherical conical surface seal of tension down check valve assembling scheme drawing;

Fig. 8 is the hemispherical conical surface seal of tension down check valve generalized section;

Fig. 9 is a T shape check valve assembling scheme drawing;

Figure 10 is a T shape check valve generalized section;

The specific embodiment

Check valve comprises valve gap 1, valve block 2, valve seat 3, and valve seat is a truncated cone-shaped, and there is circular hole 4 at its center; Valve gap 1 center has circular hole 5, valve block 2 is positioned at valve seat, valve gap 1 be positioned at valve block on can be combined as a whole with valve seat, valve seat and PE bag or container heat are melted and are connected as one, valve block is an indent truncated cone-shaped or bulb is arc or W is trapezoidal or hemispherical tension taper or T shape down.

Embodiment 1, valve block are hollow round table shape, cock 10 places in the concave surface at valve gap 1 top and with valve gap 1 and is threaded, fixing with straight pin 8, bonnet lower is provided with a bulge loop 11 and interior groove 12 tension fit of valve seat, and cock 10 extruding valve blocks are with the circular hole sealing of valve seat.

Embodiment 2, valve block are the arciform thin circle of bulb, there is the semi-round ball salient its underpart, have vent 6 on the valve block 2, valve block is a silaatic spare, bonnet lower is provided with a bulge loop 11 and interior groove 12 tension fit of valve seat, valve gap is pressed in valve block on the valve seat, and the hemisphere face under the valve block is at the exhausr port 4 that presets tension force and atmospheric effect lower seal valve seat.

Embodiment 3, valve block 2 sections are W shape: valve gap 1 center is provided with the fixed orifice that valve block is installed, its both sides have aspirating hole 6, the valve block 2 of W shape contacts with valve seat 3 in-to-in cascaded surfaces, and valve block is the silaatic product, closed valve seat 3 exhausr ports 4 under certain precompressed compression effect.

Embodiment 4, valve block 2 tops are hemispherical, connect bottom one spheroid by a cylinder, the valve block bottom is cone-shaped, valve block is the silaatic product, utilize the cylinder below the valve block 3, the uniform horizontal exhaust hole 4 in valve seat 3 bottoms, valve block 2 lower ends pass that the conical surface of its hemisphere face and valve seat 3 apertures fits tightly behind the valve base center hole, form sealing.

Embodiment 5, valve block 2 are T shape, connect bottom one spheroid by a cylinder, and the valve block bottom is cone-shaped, and valve block is the silaatic product, and the inner plane that valve seat 3 bottom outlets and valve seat 3 are passed in the valve block bottom fits tightly the formation sealing.

Claims

1. the check valve on the vacuum freshness retaining container comprises valve gap (1), valve block (2), valve seat (3), and valve seat is a truncated cone-shaped, and there is circular hole (4) at its center; Valve gap (1) center has circular hole (5), valve block (2) is positioned at valve seat (3), valve gap (1) be positioned at valve block (2) on can be combined as a whole with valve seat (3), valve seat and PE bag or antistaling container heat are melted and connected as one, and it is characterized in that: valve block (2) is for the indent truncated cone-shaped or bulb is arciform or W is trapezoidal or hemispherical tension taper or T shape down.

2. according to the check valve on the described antistaling container of claim 1, it is characterized in that: valve block (2) is the indent truncated cone-shaped, cock (10) places in the concave surface at valve gap (1) top and with valve gap (1) and is threaded, fixing with straight pin (8), bonnet lower is provided with a bulge loop (11) and interior groove (12) tension fit of valve seat, and cock (10) extruding valve block is with the circular hole sealing of valve seat.

3. the check valve on the antistaling container according to claim 1, it is characterized in that: valve block (2) is the arciform thin circle of bulb, there is the semi-round ball salient its underpart, have vent (6) on the valve block (2), valve block is a silaatic spare, bonnet lower is provided with a bulge loop (11) and interior groove (12) tension fit of valve seat, and valve block (2) is fixed on the valve seat, and the hemisphere face under the valve block is at the exhausr port (4) that presets tension force and atmospheric effect lower seal valve seat.

4. the check valve on the antistaling container according to claim 1 is characterized in that: valve block (2) section is a W shape; Valve gap (1) center is provided with the fixed orifice that valve block is installed, and its both sides have aspirating hole (5), and the valve block of W shape (2) contacts with valve seat (3) in-to-in cascaded surface, and valve block is a silaatic spare, the exhausr port (4) of closed valve seat under the precompressed compression effect (3).

5. the check valve on the antistaling container according to claim 1, it is characterized in that: valve block (2) top is hemispherical, connect bottom one spheroid by a cylinder, the valve block bottom is cone-shaped, valve block is the silaatic product, the uniform horizontal exhaust hole in valve seat (3) bottom (4), valve block (2) lower end pass that the conical surface of its hemisphere face and valve seat (3) aperture fits tightly behind the valve base center hole, form sealing.

6. the check valve on the antistaling container according to claim 1, it is characterized in that: valve block (2) section is a T shape, the valve block bottom connects bottom one spheroid by a cylinder, the valve block bottom is cone-shaped, valve block is a silaatic spare, and the inner plane that valve seat (3) bottom outlet and valve seat are passed in the valve block bottom fits tightly the formation sealing.