CN209026226U - A kind of overhead-valve mechanism - Google Patents
A kind of overhead-valve mechanism Download PDFInfo
- Publication number
- CN209026226U CN209026226U CN201821613610.9U CN201821613610U CN209026226U CN 209026226 U CN209026226 U CN 209026226U CN 201821613610 U CN201821613610 U CN 201821613610U CN 209026226 U CN209026226 U CN 209026226U
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- CN
- China
- Prior art keywords
- hole
- shell
- valve pocket
- spool
- overhead
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model discloses a kind of overhead-valve mechanism, including shell, through-hole is equipped in the shell, the through-hole internal screw thread of the shell upper end is connected with spelling cap, is equipped with air inlet in the upper spelling cap, the air inlet is connected with through-hole；Fixing sleeve is connected to valve pocket in the through-hole of the shell lower end, and the valve pocket side is equipped with circular hole, and the circular hole is connected with the gas outlet of shell side；Spool is socketed in the valve pocket；Spring is equipped between the spool and upper spelling cap, the spring is located in through-hole.Compared with prior art, a kind of overhead-valve mechanism of the utility model can not only achieve the effect that sealing by the pressing plate of spool and being used cooperatively for plain seal circle, and avoid spool sliding when and sealing ring friction, reduce the damage and replacement of sealing ring.
Description
Technical field
The utility model relates to glassware manufacture field, in particular to a kind of overhead-valve mechanisms.
Background technique
Glassware in process, is usually existed in common overhead-valve mechanism by the switching that valve body controls gas circuit
Case inside setting " O " type sealing ring is sealed, and due to the sliding of spool, be will lead to the damage of " O " type sealing ring, is replaced close
Seal is more troublesome.
Utility model content
The technical problems to be solved in the utility model is in view of the above shortcomings of the prior art, and to provide a kind of overhead-valve machine
Structure.
In order to solve the above technical problems, the technical solution adopted in the utility model is:
A kind of overhead-valve mechanism, including shell, the shell is interior to be equipped with through-hole, and the through-hole internal screw thread of the shell upper end connects
There is upper spelling cap, is equipped with air inlet in the upper spelling cap, the air inlet is connected with through-hole；It is solid in the through-hole of the shell lower end
Surely it is socketed with valve pocket, the valve pocket side is equipped with circular hole, and the circular hole is connected with the gas outlet of shell side；In the valve pocket
It is socketed with spool；Spring is equipped between the spool and upper spelling cap, the spring is located in through-hole.
Further, the spool is successively arranged guide post, pressing plate, guide shaft and top guide from top to bottom, on the outside of the guide post with
Spring socket；The pressing plate bottom is equipped with annular flange, and the annular flange is by plain seal circle pressure-bearing in valve pocket upper end；It is described
Guide shaft and top guide are slidably connected in valve pocket, and top guide middle section is equipped with sealing rubber ring compatible with circular hole in valve pocket.
Further, the top guide bottom surface is higher than shell lower end surface, and the top guide bottom surface is equipped with and mutually fits with external cam
The circular arc spherical surface matched.
Compared with prior art, a kind of overhead-valve mechanism of the utility model, passes through the pressing plate of spool and matching for plain seal circle
Close use, can not only achieve the effect that sealing, and avoid spool sliding when and sealing ring friction, reduce sealing ring
Damage and replacement.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural scheme of mechanism of the utility model spool；
Wherein, 1, shell, 2, upper spelling cap, 3, air inlet, 4, valve pocket, 5, gas outlet, 6, spool, 7, spring, 8, plain seal
Circle, 9, sealing rubber ring, 61, guide post, 62, pressing plate, 63, guide shaft, 64, top guide, 65, annular flange, 66, circular arc spherical surface.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, a kind of overhead-valve mechanism, including shell 1, the shell 1 is interior to be equipped with through-hole, 1 upper end of shell
Through-hole internal screw thread, which is connected with, spells cap 2, is equipped with air inlet 3 in the upper spelling cap 2, the air inlet 3 is connected with through-hole；It is described
Fixing sleeve is connected to valve pocket 4 in the through-hole of 1 lower end of shell, and 4 side of valve pocket is equipped with circular hole, the circular hole and 1 side of shell
Gas outlet 5 is connected；Spool 6 is socketed in the valve pocket 4；The spool 6 be successively arranged from top to bottom guide post 61, pressing plate 62,
Guide shaft 63 and top guide 64 are socketed with spring 7 on the outside of the guide post 61, and the spring 7 is located between spool 6 and upper spelling cap 2；It is described
62 bottom of pressing plate is equipped with annular flange 65, and the annular flange 65 is by 8 pressure-bearing of plain seal circle in 4 upper end of valve pocket；The guide shaft
63 are slidably connected in valve pocket 4 with top guide 64, and in order to reduce friction and easy to exhaust, the area of section of the guide shaft 63 is less than valve
The area of section of 4 inner holes is covered, 64 middle section of top guide is equipped with sealing rubber ring 9 compatible with circular hole in valve pocket 4, passes through sealant
Circle 9 prevents the gas when opening of spool 6 from leaking.
Further, 64 bottom surface of top guide is higher than 1 lower end surface of shell, and 64 bottom surface of top guide is equipped with and external cam
Compatible circular arc spherical surface 66.
In the actual operation process, overhead-valve mechanism is ventilated by the upper air inlet 2 for spelling cap 2 into shell 1, passes through spool 6
Pressing plate 62 press plain seal circle 8 and prevent gas from leaking；When cam outside mechanism rotates to 1 lower end of shell, pass through cam
Contacted with top guide 64, spool 6 jacked up, the pressing plate 62 on spool 6 is separated with 8 phase of plain seal circle at this time, gas from guide shaft 63 with
Gap between valve pocket 4 enters gas outlet 5, and gas is discharged.
The utility model is not limited to the embodiment described, and those skilled in the art is not departing from the utility model
Spirit is that still may make some modifications or changes, therefore the rights protection scope of the utility model is with claims in the open scope
Subject to the range of restriction.
Claims (3)
1. a kind of overhead-valve mechanism, it is characterised in that: including shell, through-hole, the through-hole of the shell upper end are equipped in the shell
Internal screw thread is connected with spelling cap, is equipped with air inlet in the upper spelling cap, the air inlet is connected with through-hole；The shell lower end
Through-hole in fixing sleeve be connected to valve pocket, the valve pocket side is equipped with circular hole, and the circular hole is connected with the gas outlet of shell side；
Spool is socketed in the valve pocket；Spring is equipped between the spool and upper spelling cap, the spring is located in through-hole.
2. a kind of overhead-valve mechanism according to claim 1, it is characterised in that: the spool is successively arranged from top to bottom leads
Column, pressing plate, guide shaft and top guide, the guide post outside are socketed with spring；The pressing plate bottom is equipped with annular flange, the convex annular
Edge is by plain seal circle pressure-bearing in valve pocket upper end；The guide shaft and top guide are slidably connected in valve pocket, and top guide middle section be equipped with
The compatible sealing rubber ring of circular hole in valve pocket.
3. a kind of overhead-valve mechanism according to claim 2, it is characterised in that: the top guide bottom surface is higher than shell lower end end
Face, the top guide bottom surface are equipped with circular arc spherical surface compatible with external cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821613610.9U CN209026226U (en) | 2018-09-30 | 2018-09-30 | A kind of overhead-valve mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821613610.9U CN209026226U (en) | 2018-09-30 | 2018-09-30 | A kind of overhead-valve mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209026226U true CN209026226U (en) | 2019-06-25 |
Family
ID=66905336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821613610.9U Active CN209026226U (en) | 2018-09-30 | 2018-09-30 | A kind of overhead-valve mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209026226U (en) |
-
2018
- 2018-09-30 CN CN201821613610.9U patent/CN209026226U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |