CN2288935Y

CN2288935Y - Airtight structure capable of automatic sealing after ventilated

Info

Publication number: CN2288935Y
Application number: CN 97200419
Authority: CN
Inventors: 苏福隆
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-01-14
Filing date: 1997-01-14
Publication date: 1998-08-26
Anticipated expiration: 2007-01-14

Abstract

The utility model relates to air-tight structure which can automatically seal after being ventilated, comprising a base which is provided with a plurality of holes, an upper seat body which can be firmly bridged and arranged on the base for causing the base to be hermetically clamped and fixed on a packaging body, an air guiding pin which is glidingly arranged in the upper seat body and has a bottom disc part which is pushed and is appressed on the bottom edge of the upper seat body by a restoring spring and an outer cover body which is screwed on the upper seat body for ensuring air seal. When the outer cover body is screwed and opened, the air guiding pin is downwards pressed by an air sucking duct, and the inner part of the package body is in vacuum state. The utility model has the advantages of convenient and simple operation, fast air exhaust and good air sealing effect.

Description

The self-sealing air tight construction in ventilation back

The utility model relates to a kind of sealing arrangement, be particularly related to and a kind ofly be a vacuum shape with bleeding in the packaging body and when removing intake guide, just this packaging body of automatic seal and extraneous gas channel flow into the self-sealing air tight construction in a kind of ventilation back in the packaging body once again effectively to prevent ambient atmos.

At present, the subject matter that is run into when preserving article is exactly effectively moistureproof, anti-damaging by worms how, so usually when the volume that reduces as article such as cotton-wadded quilts, best mode is to adopt vacuum-packed storing mode, so existing at present manufacturer develops relevant vacuum tight device.

See also shown in Fig. 1,2, known structure carry out storage bag vacuumize operation the time, be earlier loam cake (C) is unscrewed the through hole that makes its bottom (C ') can with the interior conducting of storage bag (B), like this, just can the air extraction in the storage bag (B) be a vacuum state by an aspirate tube (T), make things such as interior preservation thing of storage bag (B) such as cotton-wadded quilt, be compressed under the air pressure effect outside bag, thereby can dwindle the storage area and have the effect of protection against the tide, insect protected, but the shortcoming of above-mentioned vacuum tight structure below still existing in the operation:

1, when the user finishes when bleeding operation, must be after removing aspirate tube, promptly loam cake (C) is screwed down, make the rubber (P) of bottom driving fit lead to the interior through hole (C1) of bag, but as shown in Figure 2, in the process that is screwed down loam cake (C), because former compressed cotton-wadded quilt has a trend that expands, and screw process at this, be rubber (P) root edge not yet with fully driving fit of through hole (C1), so extraneous air-flow just can be inhaled in the storage bag through this pipeline rapidly easily again, make storage bag (B) that the gas of part still can remainingly be arranged, so can't reach the purpose that vacuum is preserved.

2, the user prevents that above-mentioned phenomenon from producing, and with single-hand held aspirate tube (T) continuous and effective ground to doing air-breathing operation in the storage bag (B), yet only with singlehanded this loam cake of locking (C) be can't be effectively fixing storage bag (B), certainly will be difficult to lock calmly loam cake (C), it is in a rush to cause easily, and make the vacuum suction operation can't be smoothly, finish really.

3, in addition, above-mentioned known airtight construction, its storage bag (B) only borrow a through hole (C1) of base to communicate with the external world, so air-breathing speed is slower, and poor effect.

This creator in view of this, the utility model is finished in active research innovation finally.

The purpose of this utility model is to provide a kind of ventilation back self-sealing air tight construction, so that make it have following effect:

1, after ventilate (bleeding) makes packaging body be a vacuum shape, when removing intake guide, i.e. the passage of this packaging body of automatic seal and extraneous air-flow, operate very easy, can be not in a rush.

When 2, the gas in the packaging body being bled operation, gas is that deflation rate is fast, shortens and bleeds the time by outwards extraction around the air guide bolt.

3, at ordinary times except with air guide bolt automatic seal packaging body and the extraneous gas channel, also borrow an outer cover to be screwed together on this upper pedestal,, make airtight more certain to reach dual air tight effect.

For achieving the above object, the utility model is taked following technical scheme:

The self-sealing air tight construction in a kind of ventilation back, it comprises: a base is penetrated with a plurality of holes; One upper pedestal firmly is cross-placed on this base, and is clamped on the packaging body with this base is airtight, and runs through a central axis hole at least; One air guide bolt, be slidedly arranged in the central axis hole of this upper pedestal, periphery at this air guide bolt runs through a gas port at least, and be connected with a chassis portion in the bottom of air guide bolt, make this air guide bolt by the retracing spring pushing tow that makes progress, make this chassis portion be close to the root edge of upper pedestal at ordinary times, to block through the gas channel of this gas port to the packaging body; An and outer cover, be screwed together on the upper pedestal, flow into gas channel in this upper pedestal to block ambient atmos, like this, press down after the air guide bolt carries out suction operation in to packaging body in user's elasticity, and when removing the pressure of air guide bolt, this air guide bolt i.e. the root edge of driving fit upper pedestal again automatically, and reaches self-sealing effect.

Detailed structure of the present utility model and effect, can be as follows by following examples and accompanying drawings:

Fig. 1 is the scheme drawing of known airtight construction when bleeding operation.

Fig. 2 is screwed down scheme drawing in the loam cake process for known airtight construction by Fig. 1.

Fig. 3 is the perspective exploded view of the utility model embodiment.

Fig. 4 is the integral structure cutaway view of the utility model embodiment.

The scheme drawing that Fig. 5 bleeds and operates for the utility model embodiment.

Fig. 6 removes the scheme drawing of intake guide during moment for the utility model embodiment.

Fig. 7 is applied to pack the scheme drawing of cotton-wadded quilt for the utility model embodiment.

See also Fig. 3-shown in Figure 5, the utility model ventilation back self-sealing air tight construction (100), comprise a base (1), one upper pedestal (2), to be clamped on the packaging body (5) with this base (1) is airtight, one air guide bolt (3), be slidedly arranged in this upper pedestal (2), and the chassis portion (32) that makes above-mentioned air guide bolt (3) is close to the root edge (20) of this upper pedestal (2) at ordinary times by a retracing spring (30) pushing tow, enter in this packaging body (5) to block ambient atmos, an and outer cover (4), be screwed together on the upper pedestal (2), further to guarantee airtight effect, just can an intake guide (6) press down air guide bolt (3) in the upper pedestal (2) by the said structure user, so that to the operation of bleeding of the gas in the packaging body (5), and borrow the elastic reset of retracing spring (30), make when removing intake guide (6), the chassis portion (32) that can make air guide bolt (3) again driving fit upper pedestal (2) root edge (20) and reach self-sealing effect.

Above-mentioned base (1) comprising: a dish edge portion (11), and in this dish edge portion (11), be penetrated with a plurality of button holes (111), a gas nest tube portion (12), projection and be penetrated with a plurality of pores (121) under the mediad of dish edge portion (11) in this gas nest tube portion's (12) periphery and bottom side, upwards encircle a prominent bead and form a spring retainer (122) in the bottom side of gas nest tube portion (12) in addition, with the first spring end (301) of this retracing spring (30) that bridges.

Upper pedestal (2) comprising: a disk body (21), from a plurality of clasps of the downward projection in the below of this disk body (21) (211), with this base of buckle (1), and one connect axial region (22), from upwards projection of this disk body (21), outer peripheral face in this connection axial region (22) forms an external thread part (221), with the outer cover that is spirally connected (4), and goes up perforation one central axis hole (222) at this connection axial region (22) and closes described air guide bolt (3) to slide.

Above-mentioned disk body (21) by the concrete steps of clasp (211) buckle base (1) of its below is: this disk body (21) can by each clasp (211) and the button hole (111) of above-mentioned base disk edge portion (11) firmly go up button and double team on a packaging body (5), certain above-mentioned disk body (21) and dish edge portion (11) double team can impose dielectric bonding and reach airtight conditions after packaging body (5) is gone up along periphery.

As Fig. 3, shown in Figure 4, above-mentioned air guide bolt (3) is to be a hollow cylinder, around the end section of its stack shell (31), be penetrated with a plurality of gas ports (311), and be connected with a solid chassis portion (32) in the bottom of this stack shell (31), and make the aperture of the external diameter of this chassis portion (32) greater than the central axis hole (222) of upper pedestal (2), and the prominent prominent seat (321) of establishing in the bottom of this chassis portion (32), the second spring end (302) with the above-mentioned retracing spring of socket (30), promptly upwards pushing tow is closely connected in central axis hole (222) root edge (20) of upper pedestal (2) at ordinary times in the chassis portion (32) that makes air guide bolt (3), certainly in chassis portion (32), also overlap unification leak-proof gasket (322), be an airtight conditions to block the current path between each gas port (311) and packaging body (5), in addition at the prominent projected edge plate (33) that is connected with of the top of this stack shell (31) ring, bridge for intake guide (6), and press by moving down air guide bolt (3) with this projected edge plate (33).

The stack shell (31) of above-mentioned air guide bolt (3), at least the prominent vertically prominent bar (312) in a location of establishing, to coincide sliding sleeve in the sliding cave, location (222a) that above-mentioned central axis hole (222) is arranged with vertically, like this, make the air guide bolt (3) can slippage in this central authorities' axis hole (222).The utility model is for promoting air guide bolt (3) and upper pedestal (2) at ordinary times airtight effect, encircle the ring (223) of dashing forward downwards in central axis hole (222) bottom of this upper pedestal (2) periphery, make air guide bolt (3) be subjected to retracing spring (30) pushing tow at ordinary times, and make its chassis portion (32) towards upper pedestal (2) when being close to, the leak-proof gasket (322) that is bridged in this chassis portion (32) by this prominent ring (223) and chassis portion (32) press to promote its airtight effect.

As shown in Figure 4, above-mentioned outer cover (4) comprises a negative thread counterbore (41), upwards be arranged with to screw togather the connection axial region (22) of this upper pedestal (2) from its bottom, and in the periphery ring of this negative thread counterbore (41) dash forward ring (411) with and the disk body (21) of this upper pedestal (2) between a urgent packing ring (42), to block packaging body (5) and extraneous gas channel, and make the air guide bolt (3) and the airtight construction of upper pedestal (2) have a dual tight function, reach airtight conditions thoroughly to make packaging body (5).

As Fig. 4, shown in Figure 5, when the user will extract the gas in the packaging body (5) out, can be after unloading outer cover (4), directly move air guide bolt (3) to pressing down with intake guide (6), and each gas port of end section (311) that makes air guide bolt (3) is piercing in central axis hole (222) below of this upper pedestal (2), and form a gas channel with each pore (121) of base (1) gas nest tube portion (12), make intake guide (6) can extract the interior gas of packaging body (5), become vacuum state and can make in the packaging body (5).The utility model is in this pumping process, gas in the packaging body (5), be outwards to push away at a plurality of gas ports (311) that stack shell (31) is run through all around via a plurality of pores (121) in base (1) the gas nest tube portion (12) and air guide bolt (3), so gas passage is very smooth and easy, can increase the speed of bleeding, make in the packaging body (5) to be a vacuum state at high speed.

As shown in Figure 6, when the user finish bleed the operation and in the moment of removing intake guide (6), since air guide bolt (3) be at ordinary times be reset spring (30) upwards pushing tow reset, so upwards shifting out intake guide (6) simultaneously, also upwards reset thereupon, make chassis portion (32) press leak-proof gasket (322) and reach airtight conditions, so when finishing the operation and when shifting out intake guide (6) of bleeding, the utility model is promptly automatically finished the air tight operation, can effectively avoid conventional construction because of carrying out air tight work, make air-flow have an opportunity to be back to shortcoming in the packaging body by the user.

The above-mentioned employed intake guide of operation (6) of bleeding is desirable from the intake guide of dust collecting fan or the conduit of other air pump, and the utility model also will not limit.

The utility model can be applicable to as shown in Figure 7 cotton-wadded quilt collection or the collection of other article, also can be applicable to other packaging body.

The utlity model has following advantage:

1, after the operation of bleeding in finishing packaging body, when detaching intake guide, above-mentioned air guide bolt (3) promptly is close to upper pedestal (2) automatically and is reached airtight conditions, to block the gas channel in this packaging body external world, prevents that effectively airflow reflux is in packaging body.

2, because the utility model is a self-sealing air tight construction, thus after finishing the operation of bleeding, can exempt as known techniques and must flurriedly carry out airtight locking program, thus can be not in a rush, operate very easy.

3, the utility model is also locked on upper pedestal and is established an outer cover, with the air tight construction of cooperation air guide bolt and upper pedestal, thereby reaches a dual air tight effect.

4, be equipped with a plurality of gas ports around the air guide bolt of the present utility model, can improve in the packaging body and extraneous air current flow speed, to finish the operation of bleeding rapidly.

The structure that the utility model disclosed, shape can add to give modifying and use, and its packaging body can be the bottle of soft bag or rigidity under the spirit of this creation.

Claims

1, the self-sealing air tight construction in a kind of ventilation back is characterized in that it comprises:

One base is penetrated with a plurality of holes;

One upper pedestal firmly is cross-placed on this base, and is clamped on the packaging body with this base is airtight, and runs through a central axis hole at least;

One air guide bolt is slidedly arranged in the central axis hole of this upper pedestal, runs through a gas port at least at the periphery of this air guide bolt, and is connected with a chassis portion in the bottom of air guide bolt; And

One outer cover is screwed together on the upper pedestal, flows into gas channel in this upper pedestal to block ambient atmos, like this, press down after the air guide bolt carries out suction operation in to packaging body in user's elasticity, and when removing the pressure of air guide bolt, this air guide bolt i.e. the root edge of driving fit upper pedestal again automatically.

2, the self-sealing air tight construction in ventilation back as claimed in claim 1, it is characterized in that, described base comprises a dish edge portion, and in this dish edge portion, be penetrated with a plurality of button holes, one gas nest tube portion, projection and be penetrated with a plurality of pores under the mediad of dish edge portion, in addition in the bottom side of this gas nest tube portion upwards the prominent bead of ring form a spring retainer, with the first spring end of this retracing spring that bridges.

3, the self-sealing air tight construction in ventilation back as claimed in claim 1, it is characterized in that, described upper pedestal comprises: a disk body, downward a plurality of clasps of projection are with this base of buckle below this disk body, and one connect axial region, and this disk body projection that makes progress certainly forms an external thread part in the outer peripheral face of this connection axial region, with the outer cover that is spirally connected, and perforation one central axis hole closes described air guide bolt to slide on this connection axial region.

4, the self-sealing air tight construction in ventilation back as claimed in claim 1, it is characterized in that, described air guide bolt is a hollow cylinder, periphery at its stack shell is penetrated with a plurality of gas ports, and be connected with a chassis portion to bridge a leak-proof gasket in the bottom of this stack shell, and the prominent second spring end of establishing a prominent seat with the described retracing spring of socket in the bottom of this chassis portion is in addition in the prominent projected edge plate that is connected with of the top of this stack shell ring.

5, the self-sealing air tight construction in ventilation back as claimed in claim 4 is characterized in that, the stack shell outer rim of described air guide bolt, and the axially prominent at least prominent bar in a location of establishing is to coincide sliding sleeve in the sliding cave, location that this central authorities' axis hole axially is arranged with.

6, the self-sealing air tight construction in ventilation as claimed in claim 1 back is characterized in that, the central axis hole bottom periphery of described upper pedestal is the ring ring of dashing forward downwards, with the urgent leak-proof gasket of the chassis portion of described air guide bolt.

7, the self-sealing air tight construction in ventilation as claimed in claim 3 back is characterized in that described outer cover comprises a negative thread counterbore, and in the periphery ring of this negative thread counterbore ring of dashing forward, with and the disk body of described upper pedestal between a urgent packing ring.