CN208619796U - A kind of long-acting Miniature inflatable mouth - Google Patents
A kind of long-acting Miniature inflatable mouth Download PDFInfo
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- CN208619796U CN208619796U CN201820854287.8U CN201820854287U CN208619796U CN 208619796 U CN208619796 U CN 208619796U CN 201820854287 U CN201820854287 U CN 201820854287U CN 208619796 U CN208619796 U CN 208619796U
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Abstract
The utility model discloses a kind of long-acting Miniature inflatable mouth, including mounting base, core cap, crystal entertainment ball, core spring, and mounting base includes ring flange and hollow posts, has mounting hole on ring flange, it is inner conical surface on the inside of hollow posts tail end that hollow posts, which have internal screw thread and external screw thread,；Core cap includes hollow internal thread segment and nut end cap, and nut end cap central has slide opening, there is annular air channel, the external screw thread connection of hollow internal thread segment and hollow posts on the outside of slide opening；The intracavitary installation crystal entertainment ball and core spring formed between core cap and the inner conical surface of mounting base；Crystal entertainment ball includes front guide post, hemisphere face seal head, rear guide post, front guide post is matched with the slide opening of nut end cap central, core spring covers on front guide post, and the hemisphere face of hemisphere face seal head is placed in the inner conical surface of hollow posts tail end, and rear guide post is located in hollow posts.Hemisphere face seals on the inner conical surface of the crown, is in close state, and when pressing from the top of hemisphere face seal head, airway open can be inflated.
Description
Technical field
The utility model belongs to machinery field, and in particular to a kind of long-acting Miniature inflatable mouth, be mainly used for optical instrument or
Pumping inflatable body inside hermetically-sealed instrument.
Background technique
In the sealing optical device and precision instrument of domestic production, most equipment all needs to fill pure nitrogen toward inside equipment
The protective gas such as gas, helium in this way can protect inner components, improve service life, while can also prevent inside
Optical mirror slip is affected by environment, and generates eyeglass and haze phenomenon, influences to aim at visual angle and precision.
Miniature inflatable mouth all is set in outside in these equipment, this air inflation nozzle is divided into two major classes, and one kind is disposably to fill
Gas nozzle, one kind are that air inflation nozzle is recycled for multiple times.
The structure type of disposable air inflation nozzle is: in the thin copper pipe that instrument outside weldings one communicates with inside it, then will
Copper pipe is connected by connector or vacuum hose with inflation platform, pumping inflation is carried out to instrument internal by thin copper pipe, to instrument internal
After the completion of inflation, thin copper pipe is truncated with Sealing pliers, last sealing part is sealed with soldering.The advantages of this air inflation nozzle, is: not by
The shortcomings that job site and ambient temperature effect, equipment long term seal is good, this air inflation nozzle is: needing dedicated inflatable interface, gas
Mouth cannot be reused, and the maintenance of equipment is more cumbersome, and stretching interface occupied space is big outside gas nozzle, increase instrument configurations
Size influences instrument appearance.
Air inflation nozzle is recycled for multiple times and uses at home more, mainly takes following several structure types: Yi Zhongchong at present
Gas nozzle is using tyre inflating gas nozzle structure；The second way is that screw thread is processed on optical instrument, only by tire valve
Core installation is entered；The advantages of both air inflation nozzles is: inflation is convenient, and the versatility of inflatable interface is preferable, and air inflation nozzle can be repeatedly more
Secondary use.The disadvantage is that: job site and ambient temperature effect are larger, and equipment long term seal is poor, and interface is stretched out outside gas nozzle and is accounted for
It is big with space, increase instrument configurations size, influences instrument appearance.The third mode is according to device structure, design specialized inflation
Mouth.The advantages of this air inflation nozzle is: inflation is convenient, air inflation nozzle repeated multiple times can use, and occupies little space, gas nozzle is in device external
Smooth beauty.The disadvantage is that: dedicated inflatable interface is needed, job site and ambient temperature effect are larger, and equipment long term seal is poor.
It is substantially all due to being commonly recycled for multiple times inside air inflation nozzle using rubber seal, seal rubber position
Easy to aging, to guarantee equipment leakproofness, for general device in 3~5 months or so progress regular replenishment gas, 6~10 months or so fixed
Phase changes internal rubber seal circle, increases plant maintenance or cost of upkeep in this way.The higher or lower occasion of portion temperature simultaneously
It is not available this gas nozzle yet.
Summary of the invention
The purpose of the utility model is to provide a kind of long-acting Miniature inflatable mouth, this airing nozzle is that repeatedly circulation makes
With air inflation nozzle, while different from common air inflation nozzle sealing means, inside is sealed using simple metal structure, can temperature compared with
It is used under high or lower occasion, equipment long term seal is good, while having that size is small, and gas nozzle is smooth beautiful in device external
Feature.
The technical solution of the utility model includes: the long-acting Miniature inflatable mouth of the utility model includes mounting base, core cap, sealed core
Body, core spring, mounting base are the hollow rod structure of flange plate, including ring flange and hollow posts, have mounting hole on ring flange, in
Void column has internal screw thread and external screw thread, is inner conical surface on the inside of hollow posts tail end；Core cap is end nut shape, including hollow internal thread segment
With nut end cap, nut end cap central has slide opening, there is annular air channel on the outside of slide opening, hollow internal thread segment and hollow posts it is outer
Screw thread matching connection；The intracavitary installation crystal entertainment ball and core spring formed between core cap and the inner conical surface of mounting base；Crystal entertainment ball
Including front guide post, hemisphere face seal head, rear guide post, front guide post matches with the slide opening of nut end cap central and is placed in it
In, core spring covers on the front guide post between hemisphere face seal head and nut end cap, during the hemisphere face of hemisphere face seal head is placed in
In the inner conical surface of void column tail end, rear guide post is located in hollow posts, and the land portions diameter of hemisphere face seal head is less than in core cap
The internal diameter of empty internal thread segment forms air flue and communicates with the annular air channel that screw cap end covers, under natural conditions under the action of core spring,
Hemisphere face seal head is withstood on the inner conical surface of hollow posts tail end of mounting base, and long-acting Miniature inflatable mouth is in close state, and works as top
After pressure when guide post, hemisphere face seal head and the inner conical surface of hollow posts tail end are left, and airway open can inflate；If with hollow
The matched seal plug of the internal screw thread of column, seal plug are a step circles cylindricality, including spiro rod section and disk, the spiral shell of spiro rod section
Line is matched with the internal screw thread of hollow posts, has gasket between disk and the ring flange of mounting base.
The core spring is one group of 6 standard disc spring assembled arrangements installation.
The mounting base, core cap, crystal entertainment ball, core spring are metal structure, and entire shape is step-like long cylinder
Shape, maximum dimension D=φ 25mm ± 2mm, length L=19~21mm.
A kind of long-acting dedicated Inflatable adaptor of Miniature inflatable mouth, Inflatable adaptor include cylindrical adapter ontology,
There are threaded mandrel, the hollow posts internal screw thread of threaded mandrel and the long-acting Miniature inflatable mouth mounting base in the front end of adapter ontology
Matching；The rear end of adapter ontology is gas source connector, and there is venthole at the center of Inflatable adaptor, has on the outside of Inflatable adaptor
Hex wrench position.
It is switching screw thread on the outside of the gas source connector of the rear end of the adapter ontology, inside is converting interface.
The advantages of the utility model: the utility model gas nozzle is after the assembly is completed, concordant with instrument end face outside entire gas nozzle,
Inside occupies instrument space within 18mm.The utility model uses under the higher or lower occasion of temperature, and equipment is close for a long time
Envelope property it is good, while have structure size it is small, it is at low cost, can reuse, install after instrument outside it is smooth without protrude, pumping inflation side
The features such as can leaning on.
With disposable air inflation nozzle and the excellent of air inflation nozzle is recycled for multiple times in the long-acting Miniature inflatable mouth of the utility model
Point, can circulation inflatable, while sealing timeliness and use environment temperature and disposable air inflation nozzle is almost the same.
The gas nozzle of the utility model is suitably mounted to special occasions and uses or need the optical instrument of long-term seal, accurate instrument
The device externals such as device make to be able to achieve inside it quickly to take out and fill protection gas.It is also applied for the upgrading of gas nozzle in this kind of equipment
And technological improvement has preferable application value and promotion prospect especially suitable for using under severe environmental conditions.
Detailed description of the invention
Fig. 1 is the assembling structure perspective view of the explosion of the utility model.
Fig. 2 is the structural schematic diagram of the utility model.
Fig. 3 is installation diagram of the utility model in equipment.
Fig. 4 is that pumping of the utility model in equipment inflates schematic diagram.
Specific embodiment
Below in conjunction with drawings and examples, the present invention will be further described.
FIG. 1 to FIG. 4 is one embodiment of the utility model.
As shown in FIG. 1 to FIG. 2, a kind of long-acting Miniature inflatable mouth of the utility model includes mounting base 1, core cap 2, sealed core
Body 3, core spring 4, it is characterised in that: mounting base 1 is the hollow rod structure of flange plate, including ring flange 1a and hollow posts 1b, method
There are mounting hole 1a1, hollow posts 1b to have internal screw thread 1c and external screw thread 1d on blue disk 1a, is inner conical surface 1e on the inside of hollow posts 1b tail end；
Core cap 2 is end nut shape, including hollow internal thread segment 2a and nut end cap 2b, and there is slide opening 2c at the center nut end cap 2b, in cunning
There are annular air channel 2d, hollow internal thread segment 2a to match connection with the external screw thread 1d of hollow posts 1b on the outside of the 2c of hole；In core cap 2 and peace
Fill the intracavitary installation crystal entertainment ball 3 formed between the inner conical surface 1e of seat 1 and core spring 4；Crystal entertainment ball 3 includes front guide post 3a, half
Ball face sealing head 3b, rear guide post 3c, front guide post 3a are matched with the slide opening 2c at the center nut end cap 2b and are placed in wherein, core spring
On 4 sets of front guide post 3a between hemisphere face seal head 3b and nut end cap 2b, the hemisphere face of hemisphere face seal head 3b is placed in
In the inner conical surface 1e of hollow posts 1b tail end, rear guide post 3c is located in hollow posts 1b, and the land portions of hemisphere face seal head 3b are straight
Diameter is less than the internal diameter of the hollow internal thread segment 2a of core cap 2, forms air flue and communicates with the annular air channel 2d on nut end cap 2b, natural shape
Under state under the action of core spring 4, hemisphere face seal head 3b is withstood on the inner conical surface 1e of hollow posts 1b tail end of mounting base 1, long-acting
Miniature inflatable mouth is in close state, after press when guide post 3c, the inner cone of hemisphere face seal head 3b and hollow posts 1b tail end
Face 1e leaves, and airway open can inflate；If the matched seal plug 5 of internal screw thread 1c with hollow posts 1b, seal plug 5 are
One step circles cylindricality, including the screw thread of spiro rod section 5a and disk 5b, spiro rod section 5a and the internal screw thread 1c of hollow posts 1b are matched, circle
There is gasket 6 between disk 5b and the ring flange 1a of mounting base 1.
The core spring 4 is one group of 6 standard disc spring assembled arrangements installation.
The mounting base 1, core cap 2, crystal entertainment ball 3, core spring 4 are metal structure, and entire shape is step-like length
Cylinder, maximum dimension D=φ 25mm ± 2mm, length L=19~21mm.
The mounting base 1, core cap 2, crystal entertainment ball 3, core spring 4 are metal stainless steel material, and gasket is rubber slab.
Entire shape is step-like elongated cylindrical, maximum dimension D=φ 25mm ± 2mm, length L=19~21mm.
In this implementation, 4 one groups of 6 standard disc spring assembled arrangements of core spring are installed, disc spring model C8-1, in combination disk spring 5
Every two are a pair of of face-to-face arrangement, it is each pair of between arrange back-to-back, the disc spring after combination is located inside air inflation nozzle, passes through sealing
The backward step of 3 upper half spherical surface seal head 3b of core carries out radially installed positioning.
Fig. 3 is installation diagram of the utility model in equipment:
Long-acting Miniature inflatable mouth in the present embodiment adds on the end face of instrument 8 when installing on the instrument 8 that need to be inflated
One group of stepped hole of work reprocesses one group of counterbore, 4 M2.5 spiral shells in counterbore size and location and mounting base 1 on outer steps face
Hole is matched, and when long-acting Miniature inflatable mouth is installed, is installed, is installed from the inside using 4 sunk screws, is installed
When, screw and joint surface apply 704 sealants.All parts after assembly are in coaxial position.Outside entire gas nozzle and 8 end of instrument
Face is concordant.The hollow internal thread segment 2a of core cap 2 has adjustment effect to crystal entertainment ball 3, core spring 4.Seal plug 5 passes through spiro rod section 5a
It is coupled with the internal screw thread 1c in mounting base 1, has the screw-driver slot for installing and dismounting outside disk 5b, be convenient for
Seal plug 5 is screwed into.
Fig. 4 is that pumping of the utility model in equipment inflates schematic diagram:
The long-acting Miniature inflatable mouth of the utility model has dedicated Inflatable adaptor, and Inflatable adaptor 7 includes cylindrical turns
There are threaded mandrel 7a in joint body 7b, the front end of adapter ontology 7b, and threaded mandrel 7a and the long-acting Miniature inflatable mouth are pacified
Fill the hollow posts 1b internal screw thread 1c matching of seat 1；The rear end of adapter ontology 7b is gas source connector 7c, the axis of Inflatable adaptor 7
There is venthole 7d to center, there is hex wrench position 7e in the outside of Inflatable adaptor 7.It is switching screw thread on the outside of gas source connector 7
7c1, inside are converting interface 7c2.
When the utility model gas nozzle is toward 8 inner inflatable of instrument, dedicated Inflatable adaptor 7 is needed, Inflatable adaptor 7 is hollow knot
Structure, external there are two external screw threads, before inflation, first disassemble seal plug 5 from gas nozzle, then Inflatable adaptor 7 is screwed into
On the hollow posts 1b internal screw thread 1c of long-acting Miniature inflatable mouth mounting base 1, by the threaded mandrel 7a of Inflatable adaptor 7 by hemisphere face
Seal head 3b is pushed open, airway open, until 7 front end face of Inflatable adaptor fits with gasket 6, makes 8 inside of instrument and inflation
Air flue outside adapter 7 is in communicating state, and Inflatable adaptor 7 passes through switching screw thread 7c1 or the converting interface of inside at this time
Threaded engagement on 7c2 and air test platform, is inflated or is evacuated to instrument 8 by air test platform.After the completion of inflation, twist
Lower Inflatable adaptor 7, under the action of core spring 4, hemisphere face seal head 3b is cooperated with 1 inner conical surface of mounting base, by air inflation nozzle
Carry out linear sealing；Secondary seal is carried out after seal plug 5 is installed again.
After the Miniature inflatable mouth of the utility model is mounted on a kind of optical encapsulant instrument, by repeatedly taking out inflation examination
It tests, wherein taking out, charge operation is convenient and reliable, and the internal gas pressure after sealing meets optical encapsulant instrument internal gas pressure
It is required that.
The long-acting air inflation nozzle of the utility model has carried out leak rate test, when test, compares with common tire inflator nozzle
Test, in the case where the blowing pressure is 22 ± 4KPa (general optical encapsulant instrument internal inflation require), while it is random between
Disconnected to carry out under -40 DEG C~+80 DEG C environmental conditions, the short-term leak rate within the wherein two moon is essentially identical, later leakage in two months
Rate, the leak rate of the long-acting air inflation nozzle of the utility model are significantly lower than the leak rate of common tire inflator nozzle.Under this environmental condition, often
With need to carry out within tire inflator nozzle three months tonifying Qi or replacement inner sealing pad, one Nian Houxu of long-acting air inflation nozzle of the utility model into
Row tonifying Qi or replacement gasket 6.
Claims (5)
1. a kind of long-acting Miniature inflatable mouth, including mounting base (1), core cap (2), crystal entertainment ball (3), core spring (4), feature exists
In: mounting base (1) is the hollow rod structure of flange plate, including ring flange (1a) and hollow posts (1b), is had on ring flange (1a)
Mounting hole (1a1), hollow posts (1b) have internal screw thread (1c) and external screw thread (1d), are inner conical surface on the inside of hollow posts (1b) tail end
(1e)；Core cap (2) is end nut shape, including hollow internal thread segment (2a) and nut end cap (2b), the center nut end cap (2b)
There is slide opening (2c), has on the outside of slide opening (2c) annular air channel (2d), the hollow posts of hollow internal thread segment (2a) and mounting base (1)
The external screw thread (1d) of (1b) matches connection；The intracavitary installation formed between core cap (2) and the inner conical surface (1e) of mounting base (1) is close
Seal core (3) and core spring (4)；Crystal entertainment ball (3) successively includes front guide post (3a), hemisphere face seal head (3b), rear guide post
(3c), front guide post (3a) are matched with the slide opening (2c) at the center nut end cap (2b) and are placed in wherein, and core spring (4) is covered in hemisphere face
On front guide post (3a) between seal head (3b) and nut end cap (2b), the hemisphere face of hemisphere face seal head (3b) is placed in hollow
In the inner conical surface (1e) of column (1b) tail end, rear guide post (3c) is located in hollow posts (1b), the spherical surface of hemisphere face seal head (3b)
Section diameter is less than the internal diameter of core cap (2) hollow internal thread segment (2a), forms the annular air channel on air flue and nut end cap (2b)
(2d) is communicated, and under natural conditions under the action of core spring (4), hemisphere face seal head (3b) withstands on the hollow posts of mounting base (1)
On the inner conical surface (1e) of (1b) tail end, long-acting Miniature inflatable mouth is in close state, after press when guide post (3c), hemisphere face
Seal head (3b) and the inner conical surface (1e) of hollow posts (1b) tail end leave, and airway open can inflate；If with hollow posts (1b)
Internal screw thread (1c) matched seal plug (5), seal plug (5) be a step circles cylindricality, including spiro rod section (5a) and circle
Disk (5b), the screw thread of spiro rod section (5a) are matched with the internal screw thread (1c) of hollow posts (1b), the flange of disk (5b) and mounting base (1)
There are gasket (6) between disk (1a).
2. long-acting Miniature inflatable mouth according to claim 1, it is characterised in that: the core spring (4) is by one group of 6 standard
The installation of disc spring assembled arrangement.
3. long-acting Miniature inflatable mouth according to claim 1, it is characterised in that: the mounting base (1), core cap (2), close
Sealing core (3), core spring (4) is metal structure, and entire shape is step-like elongated cylindrical, and maximum dimension D=φ 25mm ±
2mm, length L=19~21mm.
4. the long-acting dedicated Inflatable adaptor of Miniature inflatable mouth described in a kind of claims 1 or 2 or 3, Inflatable adaptor (7) packet
Include cylindrical adapter ontology (7b), it is characterised in that: there are threaded mandrel (7a), screw thread top in the front end of adapter ontology (7b)
Bar (7a) is matched with hollow posts (1b) internal screw thread (1c) of the long-acting Miniature inflatable mouth mounting base (1)；Adapter ontology
The rear end of (7b) is gas source connector (7c), and the axial centre of Inflatable adaptor (7) has venthole (7d), Inflatable adaptor (7)
Outside have hex wrench position (7e).
5. the long-acting dedicated Inflatable adaptor of Miniature inflatable mouth according to claim 4, it is characterised in that: the switching
It is switching screw thread (7c1) on the outside of the gas source connector (7c) of the rear end of head ontology (7b), inside is converting interface (7c2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820854287.8U CN208619796U (en) | 2018-06-04 | 2018-06-04 | A kind of long-acting Miniature inflatable mouth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820854287.8U CN208619796U (en) | 2018-06-04 | 2018-06-04 | A kind of long-acting Miniature inflatable mouth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208619796U true CN208619796U (en) | 2019-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820854287.8U Active CN208619796U (en) | 2018-06-04 | 2018-06-04 | A kind of long-acting Miniature inflatable mouth |
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| CN (1) | CN208619796U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI698358B (en) * | 2019-05-09 | 2020-07-11 | 奕道實業有限公司 | Gas nozzle device |
| CN114352787A (en) * | 2021-12-06 | 2022-04-15 | 河南平高电气股份有限公司 | High-pressure energy accumulator and inflation valve of hydraulic operating mechanism |
-
2018
- 2018-06-04 CN CN201820854287.8U patent/CN208619796U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI698358B (en) * | 2019-05-09 | 2020-07-11 | 奕道實業有限公司 | Gas nozzle device |
| CN114352787A (en) * | 2021-12-06 | 2022-04-15 | 河南平高电气股份有限公司 | High-pressure energy accumulator and inflation valve of hydraulic operating mechanism |
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