CN207145690U

CN207145690U - A kind of Non-return air valve

Info

Publication number: CN207145690U
Application number: CN201721027582.8U
Authority: CN
Inventors: 陈超
Original assignee: Yongkang Cang Rong Industry & Trade Co Ltd
Current assignee: Yongkang Cang Rong Industry & Trade Co Ltd
Priority date: 2017-08-16
Filing date: 2017-08-16
Publication date: 2018-03-27
Anticipated expiration: 2027-08-16

Abstract

A kind of Non-return air valve is the utility model is related to, including：Valve body, bonnet and diaphragm seal, central through hole is provided with the valve body and bonnet, the one side of the valve body is provided with the tube to stretch out in a ring, the inner chamber of the tube connects to form valve pocket with the central through hole of valve body, the diaphragm seal is the piece of flexible material being movably arranged in the valve pocket, the bonnet lid is located on the tube of the valve body, the intracavity bottom of bonnet is provided with the fuisw rib of multiple arranged crosswises, the guiding gutter connected between the two adjacent fuisw ribs formed with the central through hole with bonnet.Using above-mentioned technical proposal, the utility model proposes Non-return air valve, rate of air sucked in required is big, and air suction process is simple, good airproof performance, can ensure the validity of vacuum for a long time.

Description

A kind of Non-return air valve

Technical field

It the utility model is related to vacuum-packed technique field, and in particular to a kind of Non-return air valve.

Background technology

Vacuum packaging is to be completely drawn out sealing by the air in packing container, maintains to be in height decompression state in bag, makes Microorganism does not have life condition, reaches fresh-keeping, corrosion-resistant purpose for a long time.For convenience of pumping, often set on vacuum bag body One bleeding point, and check valve is set to facilitate pumping and sealing on bleeding point.

Existing vacuum packaging bag, it is to set a surrounding to be sealing adhesive and be opened on bag body outside bleeding point to take out mostly The film that gas port shifts to install.During pumping, need first detach film with bag body so that its opening connects with bleeding point, air suction process It is relatively difficult, and its opening is smaller, unit rate of air sucked in required is small, and the speed of evacuation is slow；Exhaust after gas, it is necessary to which floating film makes film and bag Show consideration for conjunction and seal bleeding point, be just avoided that gas leakage；Meanwhile because check valve is pasted onto on bag body, in temperature than relatively low or dress In the case that good food puts refrigerator, easily there is adhesion failure gas leakage, cause vacuum failure.

Utility model content

In view of the above-mentioned problems, the utility model proposes a kind of Non-return air valve, its rate of air sucked in required is big, and air suction process is simple, sealing Property is good, can ensure the validity of vacuum for a long time.

A kind of Non-return air valve, including：Valve body, bonnet and diaphragm seal, central through hole is provided with the valve body and bonnet, The one side of the valve body is provided with the tube to stretch out in a ring, and the inner chamber of the tube and the central through hole of valve body connect Logical to form valve pocket, the diaphragm seal is the piece of flexible material being movably arranged in the valve pocket, and the bonnet lid is located at the valve On the tube of body, the intracavity bottom of bonnet is provided with the fuisw rib of multiple arranged crosswises, shape between the two adjacent fuisw ribs The guiding gutter of the central through hole connection of Cheng Youyu bonnets.

During pumping, the diaphragm seal in valve pocket can move with the traction of external pumping force to the intracavity bottom of bonnet, make valve The central through hole of body, valve pocket, the central through hole of guiding gutter and bonnet are sequentially communicated the runner to form pumping, easily and fast Extract the gas in vacuum bag body；After the completion of pumping, external pumping force is cancelled, without other additional operations, diaphragm seal can be true Under the attraction of empty bag body internal negative pressure, the bottom of valve pocket is clung to automatically so as to block the central through hole of valve body, good airproof performance；Together When, being connected effectively for valve body and bonnet, the validity of vacuum can be ensured for a long time.

Further, the diaphragm seal is the silica gel piece that shape is adapted with valve pocket；The elasticity and flexibility of silica gel piece are all good, The deformation in active procedure, and the effectively central through hole of closed valve can be well adapted to.

Further, the outer rim of the fuisw rib is in the arc of evagination；Diaphragm seal is attracted after the fuisw rib, can be with Fuisw rib shape and outer deforms, make occur larger annular gap between diaphragm seal and valve pocket, and then turn in bonnet Heart through hole, it is further ensured that the smooth of pumping.

Further, be provided with annular protrusion on the outer peripheral face of the tube of the valve body, and bonnet and tube Annular groove is set on the side face of connection, and the annular protrusion is adapted with annular groove so that bonnet is fixed on valve body；Knot Structure is simple, firmly installs.

Further, the valve body is provided with outwardly brace rod in the one side of tube；Support vacuum Bag body two sides does not allow it to be bonded to each other, and keeps the unobstructed of bleed-off passage.

Further, multiple brace rods are arranged in rice font, the outer end of the central through hole of valve body and the side of brace rod Side turns on.

Further, the Non-return air valve peripheral sealing is arranged on the bleeding point of vacuum bag body.

Further, the vacuum bag body heat means of press seals on the bleeding point periphery is connected on the valve body on the outside of tube；It is close Envelope property is good, is connected firmly, avoid the occurrence of because Non-return air valve be connected with vacuum bag body it is insecure situation about leaking air, when energy is long Between ensure vacuum validity.

In summary, the utility model proposes Non-return air valve, rate of air sucked in required is big, and air suction process is simple, good airproof performance, can grow Time ensures the validity of vacuum.

Brief description of the drawings

Fig. 1 is the decomposition texture schematic diagram in one direction of the utility model embodiment；

Fig. 2 is the decomposition texture schematic diagram of the utility model embodiment other direction；

Fig. 3 is the cross section structure diagram that the utility model embodiment is evacuated state；

Fig. 4 is the cross section structure diagram of the utility model embodiment sealing state.

Reference：

1- valve bodies；11- tubes；12- valve pockets；13- annular protrusions；14- brace rods；2- bonnets；21- fuisw ribs；22- is led Chute；23- annular grooves；3- diaphragm seals；4- central through holes；5- vacuum bag bodies

Embodiment

The embodiment of technical solutions of the utility model is described in detail below in conjunction with accompanying drawing.

As shown in Figures 1 to 4, the Non-return air valve that the present embodiment provides, including：Valve body 1, bonnet 2 and diaphragm seal 3, valve body 1 With central through hole 4 is provided with bonnet 2, the one side of valve body 1 is provided with the tube 11 to stretch out in a ring, the tube 11 inner chamber connects to form valve pocket 12 with the central through hole 4 on valve body 1, and diaphragm seal 3 is the flexibility being movably arranged in valve pocket 12 Material piece；It is provided with annular protrusion 13 on the outer peripheral face of the tube 11 of valve body 1, and being connected with tube 11 in bonnet 2 Annular groove 23 is set on side face, and bonnet 2 is coordinated by annular protrusion 13 and annular groove 23 to be fixed on valve body 1；Bonnet 2 Intracavity bottom is provided with the fuisw rib 21 of multiple arranged crosswises, between two adjacent fuisw ribs 21 formed with the center on bonnet 2 The guiding gutter 22 that through hole 4 connects.

Being arranged on the bleeding point of vacuum bag body 5 for above-mentioned Non-return air valve peripheral sealing, specifically, in this implementation, takes out The hot sealing of vacuum bag body 5 on gas port periphery is connected on the valve body 1 in the outside of tube 11；, ensure that the two is connected firmly, have Splendid sealing, avoid Non-return air valve and vacuum bag body 5 occur than relatively low or install in the case that food puts refrigerator in temperature Connect it is insecure, and then and situation about leaking air, the validity of vacuum can be ensured for a long time.

Referring to Fig. 1 and Fig. 2, in the present embodiment, diaphragm seal 3 is the silica gel piece that shape is adapted with valve pocket 12, elastic and soft Property it is all good, can well adapt to the deformation in active procedure, and the central through hole 4 effectively on closed valve 1, keep close for a long time Envelope.The outer rim of the fuisw rib 21 of bonnet 2 is in the arc of evagination, diaphragm seal 3 is attracted after the fuisw rib 21, can be with leading Flow the shape of muscle 21 and outer to deform, make occur larger annular gap between diaphragm seal 3 and valve pocket 12, and then be conducting to bonnet 2 On central through hole 4, ensure pumping it is smooth.It is meanwhile outwardly in being provided with the one side of tube 11 for valve body 1 Brace rod 14 so that the two sides of vacuum bag body 5 will not be bonded to each other, keep the unobstructed of bleed-off passage；In the present embodiment, Duo Gezhi Support muscle 14 to arrange in rice font, the outer end of the central through hole 4 on valve body 1 turns on the side of brace rod 14.

Referring to Fig. 3, during pumping, diaphragm seal 3 in valve pocket 12 can be as the traction of external pumping force be to the interior bottom of chamber of bonnet 2 Portion moves, and makes the central through hole 4 on the central through hole 4 on valve body 1, valve pocket 12, guiding gutter 22 and bonnet 2 be sequentially communicated to be formed The runner of pumping, the gas extracted in vacuum bag body 5 easily and fast.Referring to Fig. 4, after the completion of pumping, external suction is cancelled Power, without carrying out other additional operations, diaphragm seal 3 can cling to valve pocket 12 automatically under the attraction of the internal negative pressure of vacuum bag body 5 Bottom and the central through hole 4 blocked on valve body 1, the validity of vacuum can be ensured for a long time, it is simple to operate.

It should be noted that preferred embodiment above is only to illustrate the technical solution of the utility model, rather than it is limited System；Although the utility model is described in detail with reference to the foregoing embodiments, one of ordinary skill in the art should manage Solution：It can still modify to the technical scheme described in previous embodiment, either to which part or whole technologies Feature carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from the utility model reality The scope of a technical scheme is applied, it all should cover among claim of the present utility model and the scope of specification.

Claims

A kind of 1. Non-return air valve, it is characterised in that including：Valve body, bonnet and diaphragm seal,

Central through hole is provided with the valve body and bonnet, the one side of the valve body is provided with the tubulose to stretch out in a ring Portion, the inner chamber of the tube connect to form valve pocket with the central through hole of valve body, and the diaphragm seal is to be movably arranged on the valve The piece of flexible material of intracavitary, the bonnet lid are located on the tube of the valve body, and the intracavity bottom of bonnet is provided with multiple friendships Pitch the fuisw rib of arrangement, the guiding gutter connected between the two adjacent fuisw ribs formed with the central through hole with bonnet.
2. Non-return air valve according to claim 1, it is characterised in that

The diaphragm seal is the silica gel piece that shape is adapted with valve pocket.
3. Non-return air valve according to claim 2, it is characterised in that

The outer rim of the fuisw rib is in the arc of evagination.
4. Non-return air valve according to claim 1, it is characterised in that

Annular protrusion is provided with the outer peripheral face of the tube of the valve body, and is set on the side face being connected with tube of bonnet Annular groove is put, the annular protrusion is adapted with annular groove so that bonnet is fixed on valve body.
5. Non-return air valve according to claim 1, it is characterised in that

The valve body is provided with outwardly brace rod in the one side of tube.
6. Non-return air valve according to claim 5, it is characterised in that

Multiple brace rods are arranged in rice font, and the outer end of the central through hole of valve body turns on the side of brace rod.
7. according to any described Non-return air valves of claim 1-6, it is characterised in that

The Non-return air valve peripheral sealing is arranged on the bleeding point of vacuum body.
8. Non-return air valve according to claim 7, it is characterised in that

The vacuum bag body heat means of press seals on the bleeding point periphery is connected on the valve body on the outside of tube.