CN205118246U - Sleeve of piston rod and piston seal structure - Google Patents
Sleeve of piston rod and piston seal structure Download PDFInfo
- Publication number
- CN205118246U CN205118246U CN201520843544.4U CN201520843544U CN205118246U CN 205118246 U CN205118246 U CN 205118246U CN 201520843544 U CN201520843544 U CN 201520843544U CN 205118246 U CN205118246 U CN 205118246U
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- China
- Prior art keywords
- piston
- rod
- piston rod
- sleeve pipe
- inner sleeve
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Abstract
The utility model discloses a sleeve of piston rod and piston seal structure, including sleeve of the piston rod and piston, sleeve of the piston rod include the body of rod, body of rod lower extreme set up the piston groove, the piston include the seal cover, the seal cover in set up the endotheca, endotheca and seal cover fixed connection, the upper portion of surface of endotheca set up annular muscle, annular muscle and endotheca fixed connection, the endotheca setting in the piston groove. The utility model discloses a three departments of up end that the section of the section of the inner wall of interior annular muscle of putting in and piston groove, endotheca upper end and the bottom surface of piston groove and body of rod lower extreme and seal cover and endotheca are connected seal up, and the content of having solved effectual like this gets into the gap between piston and the sleeve of the piston rod, has guaranteed the sealing performance between piston and the sleeve of the piston rod, greatly increased life.
Description
Technical field
The utility model relates to cosmetic product device field, and in particular, the utility model relates to a kind of piston rod sleeve pipe and piston sealing structure.
Background technique
At present, the content of vacuum flask and air can be completely isolated, avoid product because of ingress of air oxidation deterioration, breed bacteria, and with its high-tech Concept Promoting product shelves.The piston that vacuum flask current on market becomes ellipsoid container to add an arrangement bottom by a cylindrical body forms.Its design principle is the contractile force with spring, and do not allow air enter in bottle, cause vacuum state, and the piston-advance at the bottom of utilizing atmospheric pressure to promote bottle, the poor sealing of existing piston rod sleeve pipe and piston, easily cause Contents Fill in the gap of piston and piston rod sleeve pipe, content can be caused for a long time to solidify, cause the hydraulic performance decline of piston.
Model utility content
The purpose of this utility model is to solve existing above-mentioned problem, provides a kind of piston rod sleeve pipe and piston sealing structure.
For realizing above object, the technical solution of the utility model is a kind of piston rod sleeve pipe and piston sealing structure, comprise piston rod sleeve pipe and piston, described piston rod sleeve pipe comprises the body of rod, and described body of rod lower end arranges piston groove, described piston comprises stuffing box gland, arrange inner sleeve in described stuffing box gland, described inner sleeve is fixedly connected with stuffing box gland, and the top of the outer surface of described inner sleeve arranges annular muscle, described annular muscle is fixedly connected with inner sleeve, is set in piston groove in described.Sealed with upper-end surface three place that stuffing box gland is connected with inner sleeve with the section of the bottom surface of piston groove and body of rod lower end by the inwall of the interior annular muscle put and piston groove, the section of interior set upper side, the effective like this content that solves enters gap between piston and piston rod sleeve pipe, ensure that the sealability between piston and piston rod sleeve pipe, considerably increase working life.
Optionally, described inner sleeve comprises upper envelope and lower big envelope, and described upper envelope is fixedly connected with lower big envelope, and described annular muscle is arranged on upper envelope.Upper envelope is used for the sealing between piston and piston rod sleeve pipe, and lower big envelope is used for the sealing between piston and piston rod.
Optionally, the inwall lower end of described inner sleeve arranges chamfering.Chamfering can facilitate the assembly and disassembly between piston rod and piston.
Optionally, the upper inside wall of described piston rod sleeve pipe arranges fixed groove.Fixed groove is corresponding with the convex tendon on piston rod, for fixed piston rod.
Optionally, described body of rod upper end arranges limited ring, and described limited ring is fixedly connected with the body of rod.Limited ring is used for the spacing of the body of rod and other component, prevents other component from skidding off from the body of rod.
Optionally, the outer surface of described body of rod bottom arranges limit rib, and described limit rib is fixedly connected with the body of rod.Limit rib is used for the fixing and spacing of the body of rod and other component, prevents other component from skidding off from the body of rod.
The utility model has following beneficial effect: sealed with upper-end surface three place that stuffing box gland is connected with inner sleeve with the section of the bottom surface of piston groove and body of rod lower end by the inwall of the interior annular muscle put and piston groove, the section of interior set upper side, the effective like this content that solves enters gap between piston and piston rod sleeve pipe, ensure that the sealability between piston and piston rod sleeve pipe, considerably increase working life.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is a kind of structural representation of piston rod sleeve pipe;
Fig. 3 is a kind of structural representation of piston.
12, piston sleeve, 13, inner sleeve, 14, stuffing box gland, 15, chamfering, 131, upper envelope, 132, lower big envelope, 134, annular muscle, 21 piston rod sleeve pipes, 22, the body of rod, 23, piston groove, 24, limit rib, 25, fixed groove, 26, limited ring.
Embodiment
Below in conjunction with specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is further described:
Embodiment: piston rod sleeve pipe and piston sealing structure are (see accompanying drawing 1, 2, 3), comprise piston rod sleeve pipe 21 and piston 12, described piston rod sleeve pipe 21 comprises the body of rod 22, the described body of rod 22 lower end arranges piston groove 23, described piston 12 comprises stuffing box gland 14, in described stuffing box gland 14, inner sleeve 13 is set, described inner sleeve 13 is fixedly connected with stuffing box gland 14, the top of the outer surface of described inner sleeve 13 arranges annular muscle 134, described annular muscle 134 is fixedly connected with inner sleeve 13, described inner sleeve 13 is arranged in piston groove 23, described inner sleeve 13 comprises upper envelope 131 and lower big envelope 132, described upper envelope 131 is fixedly connected with lower big envelope 132, described annular muscle 134 is arranged on upper envelope 131, the inwall lower end of described inner sleeve 13 arranges chamfering 15, the upper inside wall of described piston rod sleeve pipe 21 arranges fixed groove 25, the described body of rod 22 upper end arranges limited ring 26, described limited ring 26 is fixedly connected with the body of rod 22, the outer surface of the described body of rod 22 bottom arranges limit rib 24, described limit rib 24 is fixedly connected with the body of rod 22.
During use, upper envelope is used for the sealing between piston and piston rod sleeve pipe, lower big envelope is used for the sealing between piston and piston rod, chamfering can facilitate the assembly and disassembly between piston rod and piston, fixed groove is corresponding with the convex tendon on piston rod, for fixed piston rod, limited ring is used for the spacing of the body of rod and other component, prevent other component from skidding off from the body of rod, limit rib is used for the fixing and spacing of the body of rod and other component, prevent other component from skidding off from the body of rod, the annular muscle put in the application passes through and the inwall of piston groove, the section of interior set upper side seals with upper-end surface three place that stuffing box gland is connected with inner sleeve with the section of the bottom surface of piston groove and body of rod lower end, the effective like this content that solves enters gap between piston and piston rod sleeve pipe, ensure that the sealability between piston and piston rod sleeve pipe, considerably increase working life.
Above-mentioned embodiment is used for explaining and the utility model is described; instead of the utility model is limited; in the protection domain of spirit of the present utility model and claim, any amendment make the utility model and change, all fall into protection domain of the present utility model.
Claims (6)
1. a piston rod sleeve pipe and piston sealing structure, it is characterized in that, comprise piston rod sleeve pipe and piston, described piston rod sleeve pipe comprises the body of rod, and described body of rod lower end arranges piston groove, described piston comprises stuffing box gland, arrange inner sleeve in described stuffing box gland, described inner sleeve is fixedly connected with stuffing box gland, and the top of the outer surface of described inner sleeve arranges annular muscle, described annular muscle is fixedly connected with inner sleeve, is set in piston groove in described.
2. piston rod sleeve pipe according to claim 1 and piston sealing structure, is characterized in that, described inner sleeve comprises upper envelope and lower big envelope, and described upper envelope is fixedly connected with lower big envelope, and described annular muscle is arranged on upper envelope.
3. piston rod sleeve pipe according to claim 1 and piston sealing structure, is characterized in that, the inwall lower end of described inner sleeve arranges chamfering.
4. piston rod sleeve pipe according to claim 1 and piston sealing structure, is characterized in that, the upper inside wall of described piston rod sleeve pipe arranges fixed groove.
5. piston rod sleeve pipe according to claim 1 and piston sealing structure, is characterized in that, described body of rod upper end arranges limited ring, and described limited ring is fixedly connected with the body of rod.
6. piston rod sleeve pipe according to claim 1 and piston sealing structure, is characterized in that, the outer surface of described body of rod bottom arranges limit rib, and described limit rib is fixedly connected with the body of rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520843544.4U CN205118246U (en) | 2015-10-28 | 2015-10-28 | Sleeve of piston rod and piston seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520843544.4U CN205118246U (en) | 2015-10-28 | 2015-10-28 | Sleeve of piston rod and piston seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205118246U true CN205118246U (en) | 2016-03-30 |
Family
ID=55573860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520843544.4U Active CN205118246U (en) | 2015-10-28 | 2015-10-28 | Sleeve of piston rod and piston seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205118246U (en) |
-
2015
- 2015-10-28 CN CN201520843544.4U patent/CN205118246U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 312366 Lehai Industrial Zone, Binhai New Town, Shaoxing, Zhejiang Patentee after: Shaoxing Shenlong aluminium plastic product Co., Ltd. Address before: 312366 Lehai Industrial Zone, Binhai New Town, Shaoxing, Zhejiang Patentee before: Shangyu Shenlong Aluminum-plastic Product Co.,Ltd. |