CN211894411U

CN211894411U - Vacuum-pumping air valve

Info

Publication number: CN211894411U
Application number: CN202020274366.9U
Authority: CN
Inventors: 阮斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2020-11-10
Anticipated expiration: 2030-03-06

Abstract

The utility model discloses a vacuum-pumping air valve, the upper cover is covered and fixed at the upper opening of the shell, the bottom and the upper cover of the bottom shell are both provided with a plurality of air holes, and a movable sealing element and a fixed sealing sleeve are both arranged in a cavity formed by mutually splicing the inner cavity of the upper cover and the inner cavity of the bottom shell; the fixed sealing sleeve is fixedly positioned at the upper opening of the bottom shell, and a sealing limit ring body is protruded in the middle of the inner side wall of the inner hole of the fixed sealing sleeve; the bottom plate of the movable sealing element penetrates through the inner hole of the sealing limit ring body, the bottom surface of the sealing ring body on the outer periphery side of the middle part of the movable sealing element is contacted with the top surface of the sealing limit ring body, and the top of the movable sealing element is inserted into the positioning hole in the top of the upper cover; the peripheral side of the lower part of the sealing ring body in the movable sealing element is annularly protruded, and the peripheral side surface of the annular protrusion is tightly attached to the side surface of the inner hole of the sealing limit ring body. It can compress the compression of bag at the condition of no aspiration pump or air exhaust device, carries out article such as clothing and compresses and accomodate for it has to go out to travel to carry the use the utility model discloses air valve structure's compression bag is comparatively convenient.

Description

Vacuum-pumping air valve

Technical Field

The utility model belongs to the technical field of a valve structure technique for on the compression bag and specifically relates to an evacuation pneumatic valve.

Background

At present, people pay attention to saving of storage space, thick and heavy quilts and clothes in a common family are more, the problem that more space is occupied for storage is always puzzled, especially in areas with plum rain seasons, mould prevention and moisture prevention are very important, a vacuum compression bag has protection effects of water prevention, mould prevention, moisture prevention and the like, the effect of saving snow is achieved, and the problem is solved for people and is widely utilized.

In the market, various vacuum compression bag products are numerous, however, the vacuum bag compression bag is provided with an air extracting valve matched with an air extracting pump or an air extracting device, based on the above, the existing air extracting valve must be provided with the air extracting device or the air extracting pump to evacuate air in the vacuum bag and then the compression bag is compressed, so that after the vacuum compression bag is purchased, an air extracting pump or an air extracting device matched with the air extracting valve correspondingly must be purchased, the cost of using the vacuum compression bag by a consumer is increased, and once the air extracting pump or the air extracting device matched with the vacuum compression bag is damaged, air extraction operation cannot be performed by other air extracting pumps or air extracting devices, particularly, under the condition that a lot of clothes and daily necessities are carried in travel outside, one air extracting pump or air extracting device needs to be carried, so that people are inconvenient to use the vacuum compression bag in travel outside, because of the development of the above-mentioned drawbacks, there is a need for a vacuum valve that overcomes the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects of the technology and designing a vacuum-pumping air valve.

The utility model relates to a vacuum-pumping air valve, which comprises a bottom shell, a movable sealing element, a fixed sealing sleeve and an upper cover, wherein the upper cover is covered and fixed at the upper opening of the shell, the bottom of the bottom shell and the upper cover are both provided with a plurality of air holes, and the movable sealing element and the fixed sealing sleeve are both arranged in a cavity formed by mutually splicing the inner cavity of the upper cover and the inner cavity of the bottom shell; the fixed sealing sleeve is fixedly positioned at the upper opening of the bottom shell, and a sealing limit ring body is protruded in the middle of the inner side wall of the inner hole of the fixed sealing sleeve; the bottom plate of the movable sealing element penetrates through the inner hole of the sealing limit ring body, the bottom surface of the sealing ring body on the outer periphery side of the middle part of the movable sealing element is contacted with the top surface of the sealing limit ring body, and the top of the movable sealing element is inserted into the positioning hole in the top of the upper cover; the outer peripheral side of the movable sealing element, which is positioned below the sealing ring body, is provided with an annular bulge, and the peripheral side surface of the annular bulge is tightly attached to the side surface of the inner hole of the sealing limiting ring body.

Preferably, the inner hole in the fixed sealing sleeve above the sealing limit ring body is a taper hole with an upper port diameter larger than a lower port diameter. The structural design of the air-conditioning system improves the air displacement and the air exhaust speed.

Preferably, a fixed ring groove correspondingly matched with the bottom end of the upper cover is arranged on the top surface of the bottom shell close to the upper opening of the bottom shell, the bottom end of the upper cover is correspondingly inserted into the fixed ring groove, a clamping ring body is arranged on the side wall of the bottom end of the upper cover, a clamping ring groove is arranged on the position, corresponding to the fixed ring body, on the inner side wall of the fixed ring groove, and the clamping ring body is correspondingly embedded into the clamping ring groove; the edge of the notch of the fixed ring groove is provided with an inclined plane. The structure of the utility model makes the upper cover mounted on the bottom shell more convenient.

Preferably, the middle part of the inner cavity of the bottom shell is provided with a first annular step, the top surface of the first annular step is provided with an annular slot, the bottom end of the fixed sealing sleeve is inserted into the annular slot, and the bottom surface of the sealing limiting ring body abuts against the top surface of the first annular step; the inner side wall of the bottom of the inner cavity of the upper cover is provided with a second annular step, the outer periphery of the upper part of the fixed sealing sleeve is provided with a positioning ring body in a protruding mode, and the positioning ring body is pressed between the second annular step and the top surface of the bottom shell. The structure of the fixing sealing sleeve is convenient to install and fix in the base, and the fixing sealing sleeve can be made of rubber and other materials.

Preferably, a space is reserved between the peripheral side face of the annular bulge and the side face of the inner hole of the sealing limiting ring body, the ring body is bulged at the side wall of the inner hole of the sealing limiting ring body, and the side wall of the inner hole of the ring body is tightly attached to the peripheral side face of the annular bulge. The structure of the sealing device enables the sealing effect between the peripheral side surface of the annular bulge and the side surface of the inner hole of the sealing limiting ring body to be better.

Preferably, the inner bore of the first annular step is a tapered bore having an upper port diameter greater than a lower port diameter.

Preferably, the inner cavity of the bottom shell is a conical inner cavity of which the diameter of the upper port is larger than that of the lower port, and the diameter of the upper port of the conical inner cavity is consistent with that of the lower port of the conical hole of the first annular step.

Preferably, the bottom shell structure comprises an annular top plate, a plurality of longitudinal connecting plates arranged in an annular array and a bottom plate with air holes, a supporting ring body extends from the lower opening edge of an inner hole of the annular top plate, a first annular step is arranged in the middle of the side wall of the inner hole of the supporting ring body, and the longitudinal connecting plates are spaced from each other; the top of each longitudinal connecting plate is respectively jointed with the side wall of the inner hole of the supporting ring body and the bottom surface of the first annular step, and the bottom end of each longitudinal connecting plate is jointed with the top surface of the bottom plate; one side surface of each longitudinal connecting plate facing the bottom plate is an inclined surface, so that a hollow conical inner cavity is formed by the inclined surface, the top surface of the bottom plate and the conical hole of the first annular step. Its structure makes after pressing the compression bag, and gaseous can be by between each longitudinal tie plate and the gas pocket on the bottom plate fast entering to the toper inner chamber and assault the rapid jack-up that rises of movable seal spare bottom to realize quick opening the valve port and exhaust, further promote performance.

Preferably, the movable sealing element comprises a circular sleeve, a middle ring body positioned in the middle of the circular sleeve and an annular sleeve positioned on the middle edge of the bottom surface of the middle ring body, the annular sleeve is in a shape of a circular truncated cone with the diameter of the upper end larger than that of the lower end, the upper part of the peripheral side surface of the annular sleeve is tightly attached to the side wall of an inner hole of the ring body, fins are arranged on the peripheral side surface of the bottom of the circular sleeve in an annular array mode, and the outer side surfaces of the fins are respectively connected with the; the inclination angle on fin outside inclined plane is unanimous with the inclination on longitudinal tie board department inclined plane, and there is the interval on fin outside inclined plane and the lateral wall of toper inner chamber, and on the periphery side of middle ring body was located to the sealing ring body, there was the interval between the periphery side of annular cover and the fin outside inclined plane, and the upper portion circle cover of circle cover is the round platform body that the lower extreme diameter is greater than the upper end diameter, and the locating hole at upper cover top is run through to the top blind end of round platform body. The structure of the air outlet device realizes that an air outlet channel can be quickly formed between the inner hole side wall of the fixed sealing sleeve and the outer side wall of the movable sealing element after the movable sealing element rises, so that the air outlet speed is high, and the use performance is improved.

Preferably, the sealing ring body is a downward inclined sealing ring body, and the lower side edge of the sealing ring body is abutted against the top end of the sealing limiting ring body.

The utility model discloses an evacuation pneumatic valve, the design of its structure can adopt the manual work to press down the compression bag and can take place to rise with the movable sealing member that is used for sealing the valve port when making the use of vacuum compression bag, thereby the valve port is opened and can be with bag interior air escape, but not press down behind the compression bag movable sealing member can descend automatically and seal the valve port, in order to prevent to appear the bag and admit air and make the condition of compression bag evacuation failure take place, consequently it can compress the compression of bag in the condition that does not have aspiration pump or air exhaust device, carry out article such as clothing and compress and accomodate, make the tourism of going out carry the use and have the utility model discloses pneumatic valve structure's compression bag is comparatively convenient (need not to carry aspiration pump or air exhaust.

Drawings

FIG. 1 is a schematic view (one) of the overall structure of the embodiment;

FIG. 2 is the overall structure diagram of the embodiment (II);

FIG. 3 is a sectional view of the embodiment;

FIG. 4 is a cross-sectional view of the embodiment with the moveable seal raised;

fig. 5 is an exploded view of the embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

Example (b):

as shown in fig. 1-4, the vacuum-pumping air valve described in this embodiment includes a bottom case 1, a movable sealing member 4, a fixed sealing sleeve 5 and an upper cover 2, the upper cover is covered and fixed at the upper opening of the housing, the bottom of the bottom case and the upper cover both have a plurality of air holes 3, and the movable sealing member and the fixed sealing sleeve are both disposed in a cavity formed by mutually splicing the inner cavity of the upper cover and the inner cavity of the bottom case; the fixed sealing sleeve is fixedly positioned at the upper opening of the bottom shell, and a sealing limit ring body 51 is protruded in the middle of the inner side wall of the inner hole of the fixed sealing sleeve; the bottom plate of the movable sealing element penetrates through the inner hole of the sealing limit ring body 51, the bottom surface of the sealing ring body 43 on the periphery side of the middle part of the movable sealing element is contacted with the top surface of the sealing limit ring body 51, and the top part of the movable sealing element is inserted into the positioning hole 22 on the top part of the upper cover 2; an annular bulge is arranged on the outer peripheral side of the movable sealing element 4 at the position below the sealing ring body, and the peripheral side surface of the annular bulge is tightly attached to the inner hole side surface of the sealing limit ring body 51.

Further, the bottom shell 1 comprises an annular top plate 13, a plurality of longitudinal connecting plates 12 arranged in an annular array and a bottom plate 16 with air holes 3, a supporting ring body 11 extends from the lower opening edge of an inner hole of the annular top plate, a first annular step 15 is arranged in the middle of the side wall of the inner hole of the supporting ring body 11, and the longitudinal connecting plates 12 are spaced from each other; the top of each longitudinal connecting plate is respectively jointed with the side wall of the inner hole of the supporting ring body and the bottom surface of the first annular step, and the bottom end of each longitudinal connecting plate is jointed with the top surface of the bottom plate; one side surface of each longitudinal connecting plate facing the bottom plate is an inclined surface, so that a hollow conical inner cavity is formed by the inclined surface, the top surface of the bottom plate and the conical hole of the first annular step; the drain pan is arranged in the internal of bag of compression bag to be located the aspirating hole position department in compression area, then the top surface of annular roof is fixed with the internal side wall hot pressing of the area of aspirating hole department or glue bonding is fixed, at this moment with movable sealing element, fixed seal cover and upper cover assembly to the upper shed department of drain pan again, simultaneously, annular roof, bottom plate, vertical connecting plate, support ring body and first annular step inter combination constitute the drain pan of integral type structure, and the drain pan adopts the plastics material to carry out integral type injection moulding.

Furthermore, an inner hole of the fixed seal sleeve 5 above the seal limiting ring body 51 is a taper hole with an upper port diameter larger than a lower port; the movable sealing element 4 comprises a circular sleeve 41, a middle ring body 42 positioned in the middle of the circular sleeve 41 and an annular sleeve 45 positioned on the middle edge of the bottom surface of the middle ring body 42, the annular sleeve 45 is in a circular truncated cone shape with the diameter of the upper end larger than that of the lower end, the upper part of the peripheral side surface of the annular sleeve is tightly attached to the side wall of an inner hole of the ring body, fins 44 are arranged on the peripheral side of the bottom of the circular sleeve in an annular array mode, and the outer side surfaces of the fins are respectively connected with the bottom surfaces; the inclination angle of the outer inclined surface of the fin is consistent with that of the inclined surface at the longitudinal connecting plate, a gap exists between the outer inclined surface of the fin and the side wall of the conical inner cavity, the sealing ring body 43 is arranged on the outer peripheral side of the middle ring body, a gap exists between the outer peripheral side surface of the annular sleeve and the outer inclined surface of the fin, the upper circular sleeve of the circular sleeve is a circular table body with the diameter of the lower end larger than that of the upper end, and the closed end of the top of the circular table body penetrates through the positioning hole; the periphery side of the sealing ring body is in contact with the inner hole side wall of the fixed sealing sleeve, a gap is formed between the periphery side of the sealing ring body and the inner hole side wall of the fixed sealing sleeve, meanwhile, the round sleeve, the middle ring body, the annular sleeve, the fins and the sealing ring body are combined with one another to form the movable sealing element of the integrated structure, and the movable sealing element is made of plastic materials and is subjected to integrated injection molding. The peripheral side part of the annular sleeve is the annular bulge of the middle movable sealing element.

Meanwhile, in order to better match the inner cavity of the bottom shell 1 with the bottom structure of the round sleeve, the inner hole of the first annular step 15 is designed to be a taper hole with the diameter of the upper port larger than that of the lower port; the inner cavity of the bottom shell 1 is designed to be a conical inner cavity with the diameter of an upper port larger than that of a lower port, and the diameter of the upper port of the conical inner cavity is consistent with that of a lower port of a conical hole of the first annular step.

The working principle of the structure is as follows: when the bag is exhausted, after the bag of the compression bag is continuously pressed by the hand of a human body, air in the belt can quickly enter the conical inner cavity from the air holes between the longitudinal connecting plates and on the bottom plate to impact the bottom of the movable sealing element so as to quickly lift and jack the movable sealing element, after the movable sealing element is lifted, the sealing ring body, the middle ring body and the annular sleeve are separated from the fixed sealing sleeve, the upper part of the round sleeve completely extends out of the upper cover, the top surface of the middle ring body is abutted against the bottom surface of the top of the upper cover so as to form an exhaust passage, so that the air is exhausted out of the bag body through the exhaust passage and the air holes of the upper cover, when the bag is exhausted, the movable sealing element automatically descends under the action of self gravity and the external atmospheric pressure under the condition that the manual operation is not carried out on the compression bag, until the annular sleeve is descended to be contacted, if the air in the bag is exhausted to the requirement for compressing the articles (the compression degree meets the requirement of the user), the compression bag is stopped being pressed, and if the compression degree of the compression bag does not achieve the effect of compressing the articles, the compression bag is pressed for a plurality of times according to the steps until the requirement of the user for compression is met. Wherein the fixed sealing sleeve is integrally formed by rubber materials.

In this embodiment, a fixed ring groove 14 correspondingly matched with the bottom end of the upper cover 2 is arranged on the top surface of the bottom shell 1 near the upper opening thereof, the bottom end of the upper cover 2 is correspondingly inserted into the fixed ring groove, a clamping ring body 21 is arranged on the side wall of the bottom end of the upper cover 2, a clamping ring groove 141 is arranged on the inner side wall of the fixed ring groove at a position corresponding to the fixed ring body, and the clamping ring body 21 is correspondingly embedded into the clamping ring groove 141; the edge of the notch of the fixed ring groove is provided with a bevel 142. The design on its inclined plane makes the upper cover bottom outside that has the screens ring body insert the bottom of upper cover to the fixed annular in more easily to through above-mentioned upper cover mounting means, make the installation comparatively convenient, install the back simultaneously firmly reliably.

In this embodiment, the middle of the inner cavity of the bottom shell 1 is provided with a first annular step 15, the top surface of the first annular step 15 is provided with an annular slot 151, the bottom end of the fixed sealing sleeve 5 is inserted into the annular slot 151, and the bottom surface of the sealing and limiting ring body abuts against the top surface of the first annular step; the inner side wall of the bottom of the inner cavity of the upper cover 2 is provided with a second annular step 23, the upper outer periphery of the fixed sealing sleeve is provided with a positioning ring body 52 in a protruding mode, and the positioning ring body 52 is pressed between the second annular step 23 and the top surface of the bottom shell 1. The installation of its structure fixed seal cover is fixed comparatively convenient in the base, and fixed seal platform is comparatively stable after the location is fixed simultaneously.

In this embodiment, a space is formed between the outer peripheral side surface of the annular protrusion (i.e., the outer peripheral side surface portion of the annular sleeve 45) and the inner hole side surface of the sealing and limiting ring body 51, the ring body 511 is protruded from the inner hole side wall of the sealing and limiting ring body, and the inner hole side wall of the ring body 511 is closely attached to the outer peripheral side surface of the annular protrusion (i.e., the outer peripheral side surface portion of the annular sleeve 45). The structure realizes surface contact sealing, so that the sealing effect between the peripheral side surface of the annular bulge and the inner hole side surface of the sealing limiting ring body is better.

In this embodiment, the sealing ring body 43 is a downward inclined sealing ring body, and the lower side edge of the sealing ring body is abutted against the top end of the sealing limit ring body. Utilize to reduce area of contact to make the interval between the ascending back sealing ring body of movable sealing element and the sealed spacing ring body form more fast, reach the quick carminative effect of pneumatic valve to based on the setting of sealing ring body downward sloping, make middle ring body and sealing ring body rise the back, avoid sealing ring body to the gas pocket shutoff, make exhaust speed faster.

The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention.

Claims

1. A kind of evacuation air valve, characterized by, including the drain pan, movable seal, fixed seal cover and loam cake, the loam cake covers and fixes the upper opening in the body, bottom and loam cake of the drain pan have multiple air vents, and movable seal, fixed seal cover all locate in cavity that cavity and cavity of the drain pan of the loam cake splice each other and form;

the fixed sealing sleeve is fixedly positioned at the upper opening of the bottom shell, and a sealing limit ring body is protruded in the middle of the inner side wall of the inner hole of the fixed sealing sleeve;

the bottom plate of the movable sealing element penetrates through the inner hole of the sealing limit ring body, the bottom surface of the sealing ring body on the outer periphery side of the middle part of the movable sealing element is contacted with the top surface of the sealing limit ring body, and the top of the movable sealing element is inserted into the positioning hole in the top of the upper cover; the outer peripheral side of the movable sealing element, which is positioned below the sealing ring body, is provided with an annular bulge, and the peripheral side surface of the annular bulge is tightly attached to the side surface of the inner hole of the sealing limiting ring body.

2. The vacuum pumping air valve as claimed in claim 1, wherein the inner hole of the fixed sealing sleeve above the sealing limit ring body is a taper hole with an upper port diameter larger than a lower port diameter.

3. The vacuum pumping air valve as claimed in claim 1, wherein a fixing ring groove correspondingly matched with the bottom end of the upper cover is arranged on the top surface of the bottom shell near the upper opening thereof, the bottom end of the upper cover is correspondingly inserted into the fixing ring groove, a clamping ring body is arranged on the side wall of the bottom end of the upper cover, a clamping ring groove is arranged on the inner side wall of the fixing ring groove at a position corresponding to the fixing ring body, and the clamping ring body is correspondingly embedded into the clamping ring groove; the edge of the notch of the fixed ring groove is provided with an inclined plane.

4. The vacuum pumping air valve as claimed in claim 1 or 3, characterized in that the middle part of the inner cavity of the bottom shell is provided with a first annular step, the top surface of the first annular step is provided with an annular slot, the bottom end of the fixed sealing sleeve is inserted into the annular slot, and the bottom surface of the sealing and limiting ring body is abutted against the top surface of the first annular step; the inner side wall of the bottom of the inner cavity of the upper cover is provided with a second annular step, the outer periphery of the upper part of the fixed sealing sleeve is provided with a positioning ring body in a protruding mode, and the positioning ring body is pressed between the second annular step and the top surface of the bottom shell.

5. The vacuum pumping air valve as claimed in claim 1, wherein a space is formed between the outer peripheral side surface of the annular protrusion and the inner hole side surface of the sealing and limiting ring body, the ring body protrudes from the inner hole side wall of the sealing and limiting ring body, and the inner hole side wall of the ring body is tightly attached to the outer peripheral side surface of the annular protrusion.

6. The vacuum gas valve as recited in claim 4, wherein the inner bore of the first annular step is a tapered bore having an upper port diameter greater than a lower port diameter.

7. The vacuum gas valve as claimed in claim 6, wherein the inner cavity of the bottom shell is a tapered inner cavity with a diameter of the upper port larger than that of the lower port, and the diameter of the upper port of the tapered inner cavity is consistent with that of the lower port of the tapered hole of the first annular step.

8. The vacuum pumping air valve as claimed in claim 7, wherein the bottom shell structure comprises an annular top plate, a plurality of longitudinal connecting plates arranged in an annular array and a bottom plate with air holes, a supporting ring body extends from the lower opening edge of the inner hole of the annular top plate, the first annular step is arranged in the middle of the side wall of the inner hole of the supporting ring body, and the longitudinal connecting plates are spaced from each other; the top of each longitudinal connecting plate is respectively jointed with the side wall of the inner hole of the supporting ring body and the bottom surface of the first annular step, and the bottom end of each longitudinal connecting plate is jointed with the top surface of the bottom plate; one side surface of each longitudinal connecting plate facing the bottom plate is an inclined surface, so that a hollow conical inner cavity is formed by the inclined surface, the top surface of the bottom plate and the conical hole of the first annular step.

9. The vacuum pumping air valve as claimed in claim 8, wherein the movable sealing element comprises a circular sleeve, a middle ring body positioned in the middle of the circular sleeve and an annular sleeve positioned at the middle edge of the bottom surface of the middle ring body, the annular sleeve is in a shape of a circular truncated cone with the upper end diameter larger than the lower end diameter, the upper part of the peripheral side surface of the annular sleeve is tightly attached to the side wall of the inner hole of the ring body, fins are arranged on the peripheral side of the bottom of the circular sleeve in an annular array, and the outer side surfaces of the fins are respectively connected with the annular sleeve and the bottom surface; the inclination angle on fin outside inclined plane is unanimous with the inclination on longitudinal tie board department inclined plane, and there is the interval on fin outside inclined plane and the lateral wall of toper inner chamber, and on the periphery side of middle ring body was located to the sealing ring body, there was the interval between the periphery side of annular cover and the fin outside inclined plane, and the upper portion circle cover of circle cover is the round platform body that the lower extreme diameter is greater than the upper end diameter, and the locating hole at upper cover top is run through to the top blind end of round platform body.

10. The vacuum pumping valve as claimed in any one of claims 1-3 and 5-9, wherein the sealing ring body is a downward inclined sealing ring body, and the lower side edge of the sealing ring body is abutted against the top end of the sealing limit ring body.