CN201068278Y

CN201068278Y - Evacuating fresh-keeping box for foodstuff

Info

Publication number: CN201068278Y
Application number: CNU2007201116941U
Authority: CN
Inventors: 余杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-07-06
Filing date: 2007-07-06
Publication date: 2008-06-04
Anticipated expiration: 2017-07-06

Abstract

The utility model relates to a vacuum pumping food freshness keeping box, which comprises a freshness keeping box body. A box cover is connected with the box body, an obturating ring is installed between the box body and the box cover, and a vacuum air exhausting valve and an air deflating valve are installed in the box cover. The utility model is characterized in that a thread valve seat connected with the box cover is provided with the vacuum air exhausting valve, an elastic half sphere is installed on the thread valve seat, a spring washer is installed on the inner wall of the half sphere, a valve hole is arranged at the top part of the elastic half sphere and the spring washer, an upper valve plate is provided with the valve hole, a valve plate fixing cover is installed on the outer wall of the elastic half sphere, an air exhausting hole is arranged in the valve plate fixing cover, a large cover is installed outside the valve plate fixing cover, a convex ring is provided with the opening part under a large cover, the upper surface of the convex ring is contacted with the bayonet of the box cover, a spring is installed under the spring washer, a lower valve fixing cover and a lower valve plate are installed in the thread valve seat, the other end of the spring is ejected on the lower valve plate fixing cover, and an air hole is provided with the lower valve plate fixing cover.

Description

Vacuum food preserving box

Technical field

The utility model relates to the vacuum food crisper, belongs to the plastics daily necessities field.

Background technology

The vacuum food crisper makes air exhaustion by finger by lower casing compression hemisphere.Existing crisper has only a valve, during use on lid, after pressing hemisphere, the air exhaustion in the container, but valve block can not reset, so exhaust is for once, exhaust repeatedly, air-out is limited in the crisper, degree of vacuum is not high, sealing effectiveness is bad thereby fresh keeping time short, because the user will preserve food and frequent the use long period, so the shortcoming that prior art exists has: the one, poor sealing causes gas leakage, the 2nd, degree of vacuum is not high, and the 3rd, fresh-keeping effect is poor.

Summary of the invention

The purpose of this utility model is in order to overcome the shortcoming of prior art, to provide a kind of blow off valve repeatedly to work, and exhaust makes the degree of vacuum height in the container repeatedly, and valve block is good with valve base sealing, the vacuum food preserving box that fresh keeping time is grown.

The technical scheme of the utility model vacuum food preserving box is: a fresh-keeping box body is arranged, connect lid on the box body, between box body and lid, seal ring is installed, vacuum gas discharge valve and aie escape valve are installed in the lid, it is characterized in that described vacuum gas discharge valve has the screw thread valve seat that connects lid, the elasticity hemisphere is installed on the screw thread valve seat, hemispheroidal inwall mounting spring packing ring, the top of elasticity hemisphere and spring washer is shaped on valve opening, last valve block is arranged on the valve opening, the hemispheroidal outer wall of elasticity is installed the valve block fixed cap, be shaped on deflation hole in the valve block fixed cap, the outer lid greatly of installing of valve block fixed cap, the oral area under the big lid is shaped on bulge loop, and the top and lid bayonet socket of bulge loop contacts, mounting spring under spring washer, lower disc fixed cap and lower disc are installed in the screw thread valve seat, and the other end of spring withstands on the lower disc fixed cap, is shaped on pore in the lower disc fixed cap.

Vacuum food preserving box of the present utility model, two valve blocks of the upper and lower installation of its elasticity hemisphere, lower disc is closed after pressing big lid, makes valve block fixed cap compression hemisphere, and the air jack-up in the hemisphere is gone up valve block and is made air exhaustion; After unclamping hand, spring resets hemisphere to go up valve block closes sealing, and lower disc is opened simultaneously, and fresh-keeping box body hollow gas discharge section is to hemisphere, the fresh-keeping several times box body hollow pneumatolytic vacuum negative pressure condition of this action that circulates, thus fresh-keeping lid and fresh-keeping box body are sealed.Two valve blocks of the upper and lower installation of hemisphere are worked in coordination good seal performance during work; Since two valve blocks are arranged, but the repeated multiple times operation makes the degree of vacuum height in the box body, good refreshing effect, and fresh keeping time is long.

Vacuum food preserving box of the present utility model, its described elasticity hemisphere can be that silica gel material etc. is made, and the soft intensity of silica gel material is good, long service life.Between screw thread valve seat outer wall and lid, supporting cover can be arranged, have supporting cover to improve valve seat intensity, be specially adapted to big box body.It covers the installation tegillum greatly, is shaped on exhausr port in the tegillum, and this is to select another kind of technical scheme for use, and air can be discharged from tegillum.Its described lower disc can be the umbrella shape lower disc, and the structure of umbrella shape lower disc helps work, improves reliability.Its described aie escape valve has the venting bar, and the venting bar is installed in the fixed cover, and the venting bar has the little spring of resetting and mounting ring, and the venting valve sheet is installed on the venting bar, and the venting valve sheet matches with valve body in the lid, and this valve body is to make one with lid.Put into air during its work in box body, vacuum failure can open the lid.

Description of drawings

Fig. 1 is the utility model vacuum food preserving box structural representation;

Fig. 2 is that the lower disc of the utility model vacuum food preserving box is a umbrella shape valve block scheme drawing;

Fig. 3 is the utility model vacuum food preserving box aie escape valve decomposing schematic representation.

The specific embodiment

The utility model relates to vacuum food preserving box, as shown in Figure 1-Figure 3, a fresh-keeping box body 15 is arranged, connect lid 13 on the box body, seal ring 14 is installed between box body 15 and lid 13, vacuum gas discharge valve and aie escape valve 12 are installed in the lid, its major technology is characterised in that described vacuum gas discharge valve has the screw thread valve seat 6 that connects lid 13, elasticity hemisphere 4 is installed on the screw thread valve seat, screw thread valve seat 6 also is fixed on elasticity hemisphere 4 in the valve chamber of lid 13, the inwall mounting spring packing ring 5 of hemisphere 4, the top of elasticity hemisphere 4 and spring washer 5 is shaped on valve opening 16, last valve block 8 is arranged on the valve opening 16, the hemispheroidal outer wall of elasticity is installed valve block fixed cap 3, be shaped on deflation hole 17 in the valve block fixed cap 3, the valve block fixed cap 3 outer lids 2 greatly of installing, oral area under the big lid is shaped on bulge loop 20, top and lid 13 bayonet sockets of bulge loop contact, make big lid not break away from lid, in 5 times mounting spring 9 of spring washer, lower disc fixed cap 10 and lower disc 11 are installed in screw thread valve seat 6, and the other end of spring 9 withstands on the lower disc fixed cap 10, is shaped on pore 18 in lower disc fixed cap 10.This programme is at two valve blocks of elasticity hemisphere 4 upper and lower installations, and lower disc 11 is closed after pressing big lid, makes valve block fixed cap 3 compression hemispheres 4, and the air jack-up in the hemisphere 4 is gone up valve block 8 and made air exhaustion; After unclamping hand, spring 9 resets hemisphere 4 to go up valve block 8 closes sealing, and lower disc 11 is opened simultaneously, and the air discharge section is in hemisphere 4 in the fresh-keeping box body 15, the fresh-keeping several times box body 15 hollow pneumatolytic vacuum negative pressure condition of this action that circulate, thus make 15 sealings of fresh-keeping lid 13 and fresh-keeping box body.Two valve blocks of hemisphere 4 upper and lower installations are worked in coordination good seal performance during work; Since two valve blocks are arranged, but the repeated multiple times operation makes the degree of vacuum height in the box body (container), good refreshing effect, and fresh keeping time is long.Its described elasticity hemisphere can be that silica gel material etc. is made, and the soft intensity of silica gel material is good, long service life.Between its screw thread valve seat 6 outer walls and the lid 13 supporting cover 7 can be arranged, have supporting cover 7 to improve valve seat intensity, be specially adapted to big box body.Tegillum 1 is installed on its big lid 2, is shaped on exhausr port in the tegillum 1, air is discharged from exhausr port in the box body, and this is to select another kind of technical scheme for use, and air can be discharged from tegillum.Its described lower disc 11 can be the umbrella shape lower disc, and the structure of umbrella shape lower disc helps work, improves reliability.Its described aie escape valve 12 has venting bar 121, and the venting bar is installed in the fixed cover 122, and the venting bar has little spring of resetting 123 and mounting ring 124, and venting valve sheet 125 is installed on the venting bar, and venting valve sheet 125 matches with valve body in the lid.Put into air during its work in box body, vacuum failure can open the lid.In actual product, the technical scheme of aie escape valve is a lot.

Claims

1. vacuum food preserving box, a fresh-keeping box body (15) is arranged, connect lid (13) on the box body, between box body (15) and lid (13), seal ring (14) is installed, vacuum gas discharge valve and aie escape valve (12) are installed in the lid, it is characterized in that described vacuum gas discharge valve has the screw thread valve seat (6) of connection lid (13), elasticity hemisphere (4) is installed on the screw thread valve seat, the inwall mounting spring packing ring (5) of hemisphere (4), the top of elasticity hemisphere (4) and spring washer (5) is shaped on valve opening (16), last valve block (8) is arranged on the valve opening (16), the hemispheroidal outer wall of elasticity is installed valve block fixed cap (3), be shaped on deflation hole (17) in the valve block fixed cap (3), the outer big lid (2) of installing of valve block fixed cap (3), oral area under the big lid is shaped on bulge loop (20), top and lid (13) bayonet socket of bulge loop contacts, mounting spring (9) under spring washer (5), lower disc fixed cap (10) and lower disc (11) are installed in screw thread valve seat (6), the other end of spring (9) withstands on the lower disc fixed cap (10), is shaped on pore (18) in lower disc fixed cap (10).

2. vacuum food preserving box as claimed in claim 1 is characterized in that described elasticity hemisphere is that silica gel material is made.

3. vacuum food preserving box as claimed in claim 1 is characterized in that between screw thread valve seat (6) outer wall and the lid (13) supporting cover (7) being arranged.

4. vacuum food preserving box as claimed in claim 1 is characterized in that upward installation tegillum (1) of big lid (2), is shaped on exhausr port in the tegillum.

5. vacuum food preserving box as claimed in claim 1 is characterized in that described lower disc (11) is the umbrella shape lower disc.

6. vacuum food preserving box as claimed in claim 1, it is characterized in that described aie escape valve (12) has venting bar (121), the venting bar is installed in the fixed cover (122), the venting bar has little spring of resetting (123) and mounting ring (124), venting valve sheet (125) is installed on the venting bar, and venting valve sheet (125) matches with valve body in the lid.