CN202691110U - Automatic tightening glass plunger - Google Patents
Automatic tightening glass plunger Download PDFInfo
- Publication number
- CN202691110U CN202691110U CN 201220258400 CN201220258400U CN202691110U CN 202691110 U CN202691110 U CN 202691110U CN 201220258400 CN201220258400 CN 201220258400 CN 201220258400 U CN201220258400 U CN 201220258400U CN 202691110 U CN202691110 U CN 202691110U
- Authority
- CN
- China
- Prior art keywords
- overcoat
- fuse
- compression spring
- sleeve
- core
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an automatic tightening glass plunger, which consists of a sleeve, a core, a compression spring and a snap ring, wherein the outer conical surface of the core is matched in the longitudinal internal conical through hole in the sleeve; a cylinder with a set length is connected with the lower part of the outer conical surface of the core and provided with an annular groove; the cylinder is sleeved with a compression spring; the snap ring is inserted into the annular groove; and one end of the compression spring is propped against the lower end surface of the sleeve, and the other end thereof is propped against the snap ring. As the compression spring is arranged at the lower part of the conical surface where the sleeve is matched with the core and the two ends of the compression spring are propped against the sleeve and the core respectively, the spring force of the compression spring permanently acts on the matched conical surface of the sleeve and the core, so as to enable the matched conical surface to be in close fit. The automatic tightening glass plunger has the advantages of reasonable design, simple technology, high air-tightness and strong stability.
Description
Technical field
The utility model relates to the structure that automatically is becoming tight of a kind of glass piston, particularly a kind of glass piston, belongs to glass apparatus design and manufacturing technology field.
Background technique
Be used for the glass piston to liquid or gas open and close controlling in the laboratory, usually consisted of by overcoat, fuse, rubber ring, the inside of overcoat is provided with the vertically interior taper via-hole of 1:20, on the opposing sidewalls within vertically in the middle part of the taper via-hole, be provided with and the vertically interior vertical horizontal through flow hole that runs through of taper via-hole, the glass tube that this through flow hole is connected the overcoat both sides extends to outside preseting length; Fuse is the external cone that is provided with the identical tapering of the inner taper hole of overcoat, outer cone on the fuse is engaged in vertical internal taper hole of overcoat inside, the middle part of fuse external cone also be provided with overcoat in the horizontal radial hole that joins of through flow hole, and when the rotation fuse makes the radial direction through hole at external cone middle part turn over certain angle, the horizontal through flow hole of overcoat both sides is cut off closes, and then communicates when joining and opens.Lose the stability of seal closure for prevent that the fuse outer cone from coming off from vertical internal taper hole of overcoat, in overcoat is vertical, be provided with a rubber ring between the bottom end of taper via-hole and the fuse lower end, and the elastic force that relies on rubber ring to have is closely attached in the vertically interior taper via-hole of overcoat the male cone (strobilus masculinus) on the fuse all the time.The glass piston of this structure is to rely on the elastic force of rubber ring to realize conical surface close fit between fuse and the overcoat.Because it is excessive that the axial cross section of rubber ring can not arrange, and the finite elastic of rubber, moreover rubber ring is also easily aging, rotten, therefore its closed stability is relatively poor.In the laboratory, many experimental projects are for having strict sealing and insulation request between two kinds of liquid, the gas, therefore above-mentioned glass piston can not adapt to this experimental occasions, and it must be that the stability of positive confinement and sealing is mathematical that selected glass closes plug.
Summary of the invention
The purpose of this utility model is to provide a kind of glass piston that automatically is becoming tight, and solves the not enough problem of airtight stability that the traditional glass piston exists.
The utility model realizes that the technological scheme of above-mentioned purpose is: a kind of glass piston that automatically is becoming tight, it is made of overcoat, fuse, stage clip, trip ring, male cone (strobilus masculinus) on the fuse is engaged in the interior vertically interior taper via-hole of overcoat, it is characterized in that: the bottom of described fuse male cone (strobilus masculinus) is connected to the cylinder of preseting length, and cylinder is provided with a circular groove; Described compression spring sleeve is on cylinder, and trip ring is inserted in the circular groove, and an end of stage clip is against the lower end surface of overcoat, and the other end is against trip ring.
The utility model arranges stage clip in the conical surface bottom that overcoat matches with fuse, and an end that makes stage clip is against overcoat, an end against fuse, thereby the spring power of stage clip is acted on all the time overcoat is on the friction tight trend with the fuse conical surface that cooperates between the two.Thereby the utlity model has that reasonable in design, technique is simple, good airproof performance, advantage that stability is strong.
Description of drawings
Fig. 1 is main TV structure schematic diagram of the present utility model.
In Fig. 1: 1 overcoat, 101 horizontal through flow holes, 2 fuses, 201 radial holes, 202 cylinders, 203 circular grooves, 3 stage clips, 4 trip rings.
Embodiment
As shown in Figure 1, the inside of overcoat 1 is provided with the vertical interior taper via-hole of 1:20, on the opposing sidewalls at taper via-hole middle part, is provided with and the vertically interior vertical horizontal through flow hole 101 that runs through of taper via-hole within vertically; Fuse 2 is for being provided with the external cone with the identical tapering of overcoat 1 inner taper hole, and the outer cone on the fuse 2 is engaged in vertical internal taper hole of overcoat 1 inside; Be provided with the radial hole 201 that joins with overcoat 1 interior horizontal through flow hole 101 at the middle part of fuse 2 external cone.Lose the stability of seal closure for prevent that outer cone on the fuse 2 from coming off from vertical internal taper hole of overcoat 1, be connected to the cylinder 202 of preseting length in the bottom of fuse 2 male cone (strobilus masculinus)s, cylinder 202 is provided with a circular groove 203, stage clip 3 is enclosed within on the cylinder 202, trip ring 4 is inserted in the circular groove 203, one end of stage clip 3 is against the lower end surface of overcoat 1, and the other end is against trip ring 4.
In use, when rotation fuse 2 made the radial hole 201 at external cone middle part turn over certain angle, the horizontal through flow hole 101 of overcoat 1 both sides is cut off closed, and then communicated when rotation makes radial hole 201 join with the horizontal through flow hole 101 of overcoat 1 both sides again and opened.
Because the utility model is provided with stage clip 3 in the conical surface bottom that overcoat 1 matches with fuse 2, and an end that makes stage clip 3 is against overcoat 1, an end against fuse 2, thereby the spring power of stage clip 3 is acted on all the time overcoat 1 is on the friction tight trend with fuse 2 conical surface that cooperates between the two.Thereby the utlity model has good airproof performance, the strong advantage of stability.
Claims (3)
1. glass piston that automatically is becoming tight, it is made of overcoat, fuse, stage clip, trip ring, male cone (strobilus masculinus) on the fuse is engaged in the interior vertically interior taper via-hole of overcoat, and it is characterized in that: the bottom of described fuse male cone (strobilus masculinus) is connected to cylinder, and cylinder is provided with a circular groove.
2. a kind of glass piston that automatically is becoming tight according to claim 1 is characterized in that described compression spring sleeve on cylinder, and trip ring is inserted in the circular groove.
3. a kind of glass piston that automatically is becoming tight according to claim 1 and 2 is characterized in that an end of stage clip against the lower end surface of overcoat, and the other end is against trip ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220258400 CN202691110U (en) | 2012-06-04 | 2012-06-04 | Automatic tightening glass plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220258400 CN202691110U (en) | 2012-06-04 | 2012-06-04 | Automatic tightening glass plunger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202691110U true CN202691110U (en) | 2013-01-23 |
Family
ID=47546734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220258400 Expired - Fee Related CN202691110U (en) | 2012-06-04 | 2012-06-04 | Automatic tightening glass plunger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202691110U (en) |
-
2012
- 2012-06-04 CN CN 201220258400 patent/CN202691110U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20140604 |