CN205154545U - A sealing mechanism for piston rod and packing box - Google Patents
A sealing mechanism for piston rod and packing box Download PDFInfo
- Publication number
- CN205154545U CN205154545U CN201520911072.1U CN201520911072U CN205154545U CN 205154545 U CN205154545 U CN 205154545U CN 201520911072 U CN201520911072 U CN 201520911072U CN 205154545 U CN205154545 U CN 205154545U
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- China
- Prior art keywords
- seal ring
- piston rod
- utility
- model
- internal diameter
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- Expired - Fee Related
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Abstract
The utility model provides a sealing mechanism for piston rod and packing box, relates to compressor preparation technical field, sets up between packing box and piston rod, the interior cavity of packing box be provided with ring groove, ring groove in be provided with the non - metal seal circle of card in ring groove, one side of non - metal seal circle be provided with a metal -support ring of hugging closely non - metal seal circle, metal -support ring NOT AND metal seal circle internal diameter the same, the internal diameter of non - metal seal circle little than the ring groove internal diameter. The beneficial effects of the utility model are that: the utility model relates to a novelty, simple structure through consolidating at traditional sealing washer, has guaranteed its organism intensity, durable, simultaneously sealed effect is more obvious, guarantees piston rod normal use, easy operation, the practicality is good.
Description
Technical field
The utility model relates to compressor preparing technical field, is specifically related to a kind of sealing mechanism for piston rod and stuffing box.
Background technique
Compressor, low-pressure gas being promoted to a kind of driven fluid machinery of pressurized gas, is the heart of refrigeration system.It sucks the refrigerant gas of low-temp low-pressure from sucking pipe, after driving piston to compress it by motor rotation, the refrigerant gas of High Temperature High Pressure is discharged to outlet pipe, for refrigeration cycle provides power, thus realize the refrigeration cycle of compression → condensation (heat release) → expand → evaporate (heat absorption), compressor is when being prepared, stuffing box is absolutely necessary a kind of component, its main purpose is back and forth pushed in stuffing box by piston rod to carry out gas pressure change in compressor, when piston rod is movable in stuffing box, in order to ensure the sealing of itself, capital is provided with seal ring in stuffing box inner chamber body, although can seal action be played, but in the application of reality, because seal ring is comparatively dull, in using process, be easy to damage, sealing will be caused so poor, the use that impact is actual.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of structure simple, and cylinder block strength is high, and sealing effect is significantly for the sealing mechanism of piston rod and stuffing box.
Technical problem to be solved in the utility model realizes by the following technical solutions:
A kind of sealing mechanism for piston rod and stuffing box, be arranged between stuffing box and piston rod, it is characterized in that: the inner chamber body of described stuffing box is provided with annular slot, the nonmetal seal ring be stuck in annular slot is provided with in described annular slot, the side of described nonmetal seal ring is provided with the metal supporting rings that is close to nonmetal seal ring, described metal supporting rings is identical with nonmetal internal diameter of the seal ring, and the internal diameter of described nonmetal seal ring is little compared with annular slot internal diameter.
Described nonmetal seal ring is spliced by two groups of identical first seal rings and the second seal ring, is provided with spacing dop, is convenient to Maintenance and Repair, facilitate normal local replacing simultaneously between the first seal ring and the second seal ring.
Described nonmetal seal ring and the outer wall of metal supporting rings are provided with spring, ensure that resilience during normal use, more closely.
The utility model is in use: be fixed in the annular slot of stuffing box by nonmetal seal ring, then piston rod is penetrated wherein, piston rod is when twitching, when extruding causes to nonmetal seal ring, be positioned at the metal supporting rings of side, just can stop it fully, avoid causing damage to nonmetal seal ring.
The beneficial effects of the utility model are: the utility model is novel in design, and structure is simple, by reinforcing at traditional seal ring, ensure that its cylinder block strength, durable in use, sealing effect is more obvious simultaneously, ensure that piston rod normally uses, simple to operate, practicability is good.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
As shown in Figure 1, a kind of sealing mechanism for piston rod and stuffing box, be arranged between stuffing box 1 and piston rod 2, the inner chamber body of stuffing box 1 is provided with annular slot 3, the nonmetal seal ring 4 be stuck in annular slot 3 is provided with in annular slot 3, the side of nonmetal seal ring 4 is provided with the metal supporting rings 5 that is close to nonmetal seal ring 4, metal supporting rings 5 is identical with nonmetal seal ring 4 internal diameter, the internal diameter of nonmetal seal ring 4 is little compared with annular slot 3 internal diameter, after arranging like this, nonmetal seal ring 4 is fixed in the annular slot 3 of stuffing box 1, then piston rod 2 is penetrated wherein, piston rod 2 is when twitching, when extruding causes to nonmetal seal ring 4, be positioned at the metal supporting rings 5 of side, just can stop it fully, avoid causing damage to nonmetal seal ring 4, nonmetal seal ring 4 is spliced by two groups of identical first seal rings 41 and the second seal ring 42, spacing dop 6 is provided with between first seal ring 41 and the second seal ring 42, be convenient to Maintenance and Repair, facilitate normal local replacing simultaneously, nonmetal seal ring 4 and the outer wall of metal supporting rings 5 are provided with spring 7, ensure that resilience during normal use, tightr.
More than show and describe basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. the sealing mechanism for piston rod and stuffing box, be arranged between stuffing box and piston rod, it is characterized in that: the inner chamber body of described stuffing box is provided with annular slot, the nonmetal seal ring be stuck in annular slot is provided with in described annular slot, the side of described nonmetal seal ring is provided with the metal supporting rings that is close to nonmetal seal ring, described metal supporting rings is identical with nonmetal internal diameter of the seal ring, and the internal diameter of described nonmetal seal ring is little compared with annular slot internal diameter.
2. a kind of sealing mechanism for piston rod and stuffing box according to claim 1, it is characterized in that: described nonmetal seal ring is spliced by two groups of identical first seal rings and the second seal ring, is provided with spacing dop between the first seal ring and the second seal ring.
3. a kind of sealing mechanism for piston rod and stuffing box according to claim 1, is characterized in that: described nonmetal seal ring and the outer wall of metal supporting rings are provided with spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520911072.1U CN205154545U (en) | 2015-11-13 | 2015-11-13 | A sealing mechanism for piston rod and packing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520911072.1U CN205154545U (en) | 2015-11-13 | 2015-11-13 | A sealing mechanism for piston rod and packing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205154545U true CN205154545U (en) | 2016-04-13 |
Family
ID=55690249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520911072.1U Expired - Fee Related CN205154545U (en) | 2015-11-13 | 2015-11-13 | A sealing mechanism for piston rod and packing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205154545U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107017515A (en) * | 2017-03-31 | 2017-08-04 | 中航光电科技股份有限公司 | A kind of sealing structure and the rotary connector using the sealing structure |
-
2015
- 2015-11-13 CN CN201520911072.1U patent/CN205154545U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107017515A (en) * | 2017-03-31 | 2017-08-04 | 中航光电科技股份有限公司 | A kind of sealing structure and the rotary connector using the sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20191113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |