CN208564941U - Double density packing structure - Google Patents
Double density packing structure Download PDFInfo
- Publication number
- CN208564941U CN208564941U CN201821116626.9U CN201821116626U CN208564941U CN 208564941 U CN208564941 U CN 208564941U CN 201821116626 U CN201821116626 U CN 201821116626U CN 208564941 U CN208564941 U CN 208564941U
- Authority
- CN
- China
- Prior art keywords
- letter body
- primary seal
- secondary sealing
- plunger
- double density
- 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
Links
- 238000012856 packing Methods 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 72
- 239000004519 grease Substances 0.000 claims abstract description 33
- 239000011796 hollow space material Substances 0.000 claims abstract description 13
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 abstract description 10
- 239000003921 oil Substances 0.000 description 6
- 241001347978 Major minor Species 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model provides a kind of double density packing structure comprising: primary seal letter body is set as hollow structure；Secondary sealing letter body, is set as hollow structure, and the secondary sealing letter body portion is inserted into primary seal letter body hollow space；Plunger, it sequentially passes through through secondary sealing letter body hollow space, primary seal letter body hollow space, the plunger, secondary sealing letter body, primary seal letter body three coaxial arrangement, the plunger, secondary sealing letter body, primary seal letter body three's butted part surround to form closed reservoir cavity.It is relatively reliable that this double density packing structure has the advantages that can to store lubricant grease, work.
Description
Technical field
The utility model belongs to reciprocating pump seal letter dual sealing technique field, is related to a kind of double density packing structure.
Background technique
Reciprocating pump is set directly in the form of pressure energy to the conveying machinery that liquid provides energy by the reciprocating motion of piston
It is standby.Plunger moves reciprocatingly, and contacts with sealing element, is dynamic sealing.There is sealing medium in a device, medium is generally unlubricated, has
There are also impurity, easily cause plunger fever, particulate matter is stored between sealing element and plunger, cause to draw grinding column plug.Under normal circumstances,
Sealing medium is single sealing structure, is high-pressure dynamic seal medium, the medium of part leakage loss is directly leaked into collecting tank, is then exhausted from
Floor drain or leakage mouth.In this regard, the double density packing structure that the utility model designs a kind of reliable operation, can store lubricant grease.
Summary of the invention
The purpose of this utility model is the presence of the above problem in view of the prior art, and lubricating oil can be stored by proposing one kind
The relatively reliable double density packing structure of rouge, work.
The purpose of this utility model can be realized by the following technical scheme: a kind of double density packing structure, comprising:
Primary seal letter body, is set as hollow structure；
Secondary sealing letter body, is set as hollow structure, and the secondary sealing letter body portion is inserted into primary seal letter body hollow space；
Plunger is sequentially passed through through secondary sealing letter body hollow space, primary seal letter body hollow space, and the plunger, pair are close
Packing body, primary seal letter body three coaxial arrangement, the plunger, secondary sealing letter body, primary seal letter body three's butted part surround
Form closed reservoir cavity.
Grease injection port is offered on primary seal letter body as a further improvement of the utility model, and for being connected to
The grease runner of grease injection port and reservoir cavity.
As the further improvement of the utility model, the grease runner is equipped with the opening being in communication with the outside, and at this
Opening is equipped with plug screw.
The part that the secondary sealing letter body exposes primary seal letter body as a further improvement of the utility model, passes through adjusting
Nut and primary seal letter body are installed together, and the secondary sealing letter body part is tightly connected by sealing guide sleeve and plunger, close
Envelope guide sleeve, secondary sealing letter body, plunger three junction be provided with sealing ring.
Oil suction felt is provided between secondary sealing letter body, plunger as a further improvement of the utility model,.
As a further improvement of the utility model, after the secondary sealing letter body insertion, with primary seal letter body hollow portion
Division encloses to form installation space, and in dress in the installation space, there are two guide sleeves and the sealing being filled between two guide sleeves
Filler.
Based on the above-mentioned technical proposal, the utility model embodiment at least can produce following technical effect: this double density packing
Structure overall construction design is reasonable, compact layout, using double sealing structure, and ensure that primary seal letter body, secondary sealing letter body, column
The concentricity of three is filled in, major-minor sealing is intermediate to form confined space (reservoir cavity), can store lubricant grease, and work more may be used
It leans on.
Detailed description of the invention
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing, in which:
Fig. 1 is the structural schematic diagram of one preferred embodiment of the utility model.
In figure, 100, primary seal letter body；110, grease injection port；120, grease runner；200, secondary sealing letter body；300, column
Plug；400, reservoir cavity；500, adjusting nut；600, guide sleeve is sealed；700, sealing ring；800, oil suction felt；910, plug screw；
920, guide sleeve；930, airtight and watertight padding.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
Below with reference to Fig. 1, technical scheme provided by the present invention will be described in more detail.
As shown in Figure 1, this double density packing structure includes:
Primary seal letter body 100, is set as hollow structure；
Secondary sealing letter body 200, is set as hollow structure, in the 200 partial insertion primary seal letter body 100 of secondary sealing letter body
Empty part；
Plunger 300 is sequentially passed through through 200 hollow space of secondary sealing letter body, 100 hollow space of primary seal letter body, described
Plunger 300, secondary sealing letter body 200,100 three of primary seal letter body coaxial arrangement, the plunger 300, secondary sealing letter body 200, master
100 three's butted part of sealed letter body surrounds to form closed reservoir cavity 400.
The utility model protects a kind of double density packing structure, and overall construction design is reasonable, compact layout, using double density sealed knot
Structure, major-minor sealing is intermediate to form confined space (reservoir cavity 400), can store lubricant grease, work relatively reliable.
In the utility model, grease injection port 110 is preferably offered on primary seal letter body 100 and for being connected to grease
The grease runner 120 of inlet 110 and reservoir cavity 400.
The built-in primary seal of primary seal letter body 100 has grease injection hole (grease injection port 110) and runner on the letter body, side
Just grease is injected.Grease runner 120 is equipped with the opening being in communication with the outside, and is equipped with plug screw 910 in the opening.
Preferably, the part that secondary sealing letter body 200 exposes primary seal letter body 100 passes through adjusting nut 500 and primary seal letter
Body 100 is installed together, and 200 part of secondary sealing letter body is tightly connected by sealing guide sleeve 600 and plunger 300, is being sealed
Guide sleeve 600, secondary sealing letter body 200,300 three of plunger junction be provided with sealing ring 700, sealing guide sleeve 600, secondary sealing
It is provided with O-ring between letter body 200, is also equipped with O-ring between primary seal letter body 100, secondary sealing letter body 200, O-ring
Installation site is as shown in " 940 " of Fig. 1 mark.
The utility model uses double density packing structure, can inject lubricant grease in major-minor sealed letter sealed storage cavity 400,
Secondary sealing preferably using toward multiplexing sealing ring 700, reduces structure length, can be used on more types, versatility is wide.
Oil suction felt 800 is provided between secondary sealing letter body 200, plunger 300.Built-in oil suction felt 800, can be fine
Trapped fuel and reduce grease loss, extend lubrication time, enhance lubricant effect.
After secondary sealing letter body 200 is inserted into, surround to form installation space with 100 hollow space of primary seal letter body, in the peace
Guide sleeve 920 and the airtight and watertight padding 930 being filled between two guide sleeves 920 there are two dress space is built-in.
In the present case, sealing guide sleeve 600 can preferably righting plunger 300 and support plunger 300, guarantee plunger 300 with
The concentricity of packing (airtight and watertight padding 930) protects sealed packing；Secondary sealing letter mainly plays the clamping sleeve of primary seal, and with
Sealing guide sleeve 600, sealing ring 700 form closed cavity together, store lubricant grease and leakage loss medium；It is built-in to seal guide sleeve 600
Sealing ring 700, and pass through screw thread and secondary sealing letter and tight, the effect for also acting as the guiding of plunger 300, protecting packing.
In use, 100 front of primary seal letter body is screwed on plug screw 910 and is fixed on liquid cylinder；Primary seal (airtight and watertight padding
930) it is packed into primary seal letter body 100 by prescribed requirement, sealing ring 700 is packed into sealing guide sleeve 600, and loads onto O-ring, is screwed into
In the secondary sealing letter body 200 for having installed oil suction felt 800 and O-ring, and tighten.200 component of the secondary sealing letter body dress installed
It becomes owner of in sealed letter body 100, and tightens fixation with adjusting nut 500, then fill in plunger 300, and tightened with intermediate bar.
Overall work principle is as follows: the double density packing component installed constitutes several cavitys, has grease injection port
110, grease runner 120, closed storage cavities can be injected by external grease injection device；Such as not external grease injection dress
It sets, grease can also be injected by manually form, then screw on plug screw 910；The grease of injection arrives closed cavity by runner
Place, lubricant grease herein are contacted with plunger 300, packing；Sealing ring 700 and plunger 300, secondary sealing letter body 200, primary seal letter
Body 100 constitutes sealed storage cavity 400, can guarantee that lubricant grease is contacted with plunger 300, packing for a long time；Oil suction hair
Felt 800 can also extend lubricant grease using the time, preferably clean plunger 300, extend 300 service life of plunger.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (6)
1. a kind of double density packing structure, it is characterised in that: include:
Primary seal letter body, is set as hollow structure；
Secondary sealing letter body, is set as hollow structure, and the secondary sealing letter body portion is inserted into primary seal letter body hollow space；
Plunger is sequentially passed through through secondary sealing letter body hollow space, primary seal letter body hollow space, the plunger, secondary sealing letter
Body, primary seal letter body three coaxial arrangement, the plunger, secondary sealing letter body, primary seal letter body three's butted part surround to be formed
Closed reservoir cavity.
2. double density packing structure according to claim 1, it is characterised in that: offer grease injection on primary seal letter body
Mouth and the grease runner for being connected to grease injection port and reservoir cavity.
3. double density packing structure according to claim 2, it is characterised in that: the grease runner is equipped with and is in communication with the outside
Opening, and plug screw is equipped in the opening.
4. double density packing structure according to claim 1, it is characterised in that: the secondary sealing letter body exposes primary seal letter body
Part be installed together by adjusting nut and primary seal letter body, and the secondary sealing letter body part passes through sealing guide sleeve and plunger
It is tightly connected, the junction of sealing guide sleeve, secondary sealing letter body, plunger three is provided with sealing ring.
5. double density packing structure according to claim 1, it is characterised in that: be provided between secondary sealing letter body, plunger
Oil suction felt.
6. double density packing structure according to any one of claims 1 to 5, it is characterised in that: the secondary sealing letter body insertion
Afterwards, it surrounds to form installation space with primary seal letter body hollow space, dress there are two guide sleeve and is filled out in the installation space
Airtight and watertight padding between two guide sleeves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821116626.9U CN208564941U (en) | 2018-07-13 | 2018-07-13 | Double density packing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821116626.9U CN208564941U (en) | 2018-07-13 | 2018-07-13 | Double density packing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208564941U true CN208564941U (en) | 2019-03-01 |
Family
ID=65493297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821116626.9U Expired - Fee Related CN208564941U (en) | 2018-07-13 | 2018-07-13 | Double density packing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208564941U (en) |
-
2018
- 2018-07-13 CN CN201821116626.9U patent/CN208564941U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190301 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |