CN209026084U - A kind of high leakproofness nitrogen gas spring - Google Patents
A kind of high leakproofness nitrogen gas spring Download PDFInfo
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- CN209026084U CN209026084U CN201821844361.4U CN201821844361U CN209026084U CN 209026084 U CN209026084 U CN 209026084U CN 201821844361 U CN201821844361 U CN 201821844361U CN 209026084 U CN209026084 U CN 209026084U
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- plunger
- nitrogen gas
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Abstract
The utility model discloses a kind of high leakproofness nitrogen gas springs of nitrogen gas spring technical field, including cylinder body, the inner cavity of cylinder body, which abuts, guide sleeve, the inner cavity of guide sleeve slidably connects plunger, the top left side of guide sleeve is connected with retainer plate, dustband is provided at the top of guide sleeve, and dustband is socketed on the periphery wall of plunger, oil pocket is provided between guide sleeve and plunger, the periphery of plunger is socketed with the first lip-shaped sealed ring and the second lip-shaped sealed ring, first lip-shaped sealed ring is located at the top of the second lip-shaped sealed ring, upper O sealing ring and lower O sealing ring are provided between guide sleeve and cylinder body, oily cold house is provided between upper O sealing ring and lower O sealing ring, the intracavity sidewall of oily cold house and cylinder body abuts against, it is connected between oily cold house and oil pocket by oil circuit, between the bottom and cylinder body of guide sleeve It is provided with relief groove, i.e. the utility model provides a kind of high leakproofness nitrogen gas spring.
Description
Technical field
The utility model relates to nitrogen gas spring technical field, specially a kind of high leakproofness nitrogen gas spring.
Background technique
Mold special nitrogen spring abbreviation punch die nitrogen gas spring or nitrogen gas spring or nitrogen cylinder or nitrogen cylinder are one kind with high pressure
Nitrogen is the novel elastic component of working media, it is small in size, elastic force is big, stroke is long, stable working, and manufacture is accurate, uses the longevity
Life length, spring curve is gentle, and do not need preload etc., it has the common elastics components such as metal spring, rubber and air cushion
It is difficult to the work completed, simplifies mold design and manufacture, facilitates mold installation and adjustment, extend the service life of mold, it is ensured that
The stabilization of product quality can also be designed to that a kind of nitrogen gas spring system, a part as mold are worked, can be
It easily realizes that pressure is constant and deferred action in system, is a kind of optimal elastic portion of a new generation with flex capability
Part, currently, the leakproofness of nitrogen gas spring is still incomplete, some nitrogen gas spring leakproofness are poor, while cannot effectively carry out
It is dust-proof.
Such as Chinese Patent Application No. is CN201420443171.7 high leakproofness nitrogen gas spring, collective content is " a kind of
High leakproofness nitrogen gas spring, the cylinder including upper end cover, lower cover and the assembly that matches in the middle part of the two and respectively with the two
The contact position of body, the upper end cover and cylinder body is provided with upper sealing gasket, the contact position setting of the lower cover and cylinder body
There is a lower seal circle, the contact position of upper end cover and cylinder body is also disposed with dust-proof above upper sealing gasket from top to bottom
Circle, self-lubricating washer and nitrogen-sealed circle are provided with for being spaced upper end cover and lower end at the lumen position of the cylinder body
The retaining ring of lid ", although foregoing invention has certain leakproofness, and manufacture craft is simple, this device is only equipped with simply
Dustband, in spring use process easily enter dust, cause device overall tightness reduction, oil liquid leakage；This device is not
Oil pocket and oily cold house are set, and lubricity is too low at work, and device lifetime is short.
Based on this, the utility model devises a kind of high leakproofness nitrogen gas spring, to solve the above problems.
Utility model content
The purpose of this utility model is to provide a kind of high leakproofness nitrogen gas springs, to solve to propose in above-mentioned background technique
Although there is certain leakproofness, and manufacture craft is simple, this device is only equipped with simple dustband, makes in spring
With dust is easily entered in the process, lead to the reduction of device overall tightness, oil liquid leakage；The not set oil pocket of this device and oily cold house,
Lubricity is too low at work, device lifetime short problem.
To achieve the above object, the utility model provides the following technical solutions: a kind of high leakproofness nitrogen gas spring, including cylinder
Body, the inner cavity of the cylinder body, which abuts, guide sleeve, and the inner cavity of the guide sleeve slidably connects plunger, the top of the guide sleeve
Left side is connected with retainer plate, dustband is provided at the top of the guide sleeve, and dustband is socketed on the periphery wall of plunger,
Oil pocket is provided between the guide sleeve and plunger, the periphery of the plunger is socketed with the first lip-shaped sealed ring and the second lip
Type sealing ring, first lip-shaped sealed ring are located at the top of the second lip-shaped sealed ring, are arranged between the guide sleeve and cylinder body
There are upper O sealing ring and lower O sealing ring, it is cold that oil is provided between the upper O sealing ring and lower O sealing ring
The intracavity sidewall of room, the oil cold house and cylinder body abuts against, and is connected between the oil cold house and oil pocket by oil circuit, described to lead
To relief groove is provided between the periphery left bottom and cylinder body of set, the inner cavity of the cylinder body is horizontally disposed retaining ring, institute
The intracavity bottom for stating cylinder body is provided with lubricating oil, and the left bottom of the cylinder body is connected with plug screw, the right side of the plug screw
It is connected with charge valve between the intracavity bottom of cylinder body, is provided with screw thread at the top of the bottom of the cylinder body and plunger
Hole.
Preferably, the plunger includes cylinder, and the intracavity bottom of the cylinder is provided with air column hole, the circumference of the cylinder
Exterior bottom is provided with boss, is provided with mounting groove at the top of the boss, pushes plunger to be moved by air column hole.
Preferably, O-ring and secondary retaining ring are provided between the top and cylinder body of the retainer plate, the O-ring is located at pair
The top of retaining ring, convenient for the fixation of retainer plate.
Preferably, the dustband includes circle body, and the inner cavity of the circle body and periphery are respectively arranged with inner ring and convex
Ring, and two groups are provided with, there is cavity between two groups of bulge loops between two groups of inner rings, so that dustband is carried out double-layer seal, no
The dust tightness of dustband is improved only, also increase leakproofness.
Preferably, it is provided with capillary at the top of the charge valve, passes through Capillary restrictor.
Compared with prior art, the utility model has the beneficial effects that the utility model is set between guide sleeve and cylinder body
It is equipped with dustband, dustband inner cavity is provided with two groups of inner rings, and dustband periphery wall is provided with two groups of bulge loops, inner ring and bulge loop
It aligns, has cavity between two groups of inner rings, and also have cavity between two groups of bulge loops, dustband can not only be made to play bilayer to device
Dust-proof effect, moreover it is possible to the leakproofness of device is improved while dust-proof；Periphery wall in plunger is provided with oil pocket,
The periphery of oil pocket is connected by oil circuit with oily cold house, is lubricated to the periphery wall of plunger, it is sensitive to improve device
Degree effectively prevents gas leakage, improves service using life, i.e. the utility model provides a kind of high leakproofness nitrogen bullet
Spring.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model switch plunger structure diagram；
Fig. 3 is the utility model dustband structural schematic diagram.
In attached drawing, parts list represented by the reference numerals are as follows:
1- cylinder body, 2- guide sleeve, 3- plunger, 4- retainer plate, 5- dustband, 6- oil pocket, the first lip-type packing of 7-, 8-
Two lip-shaped sealed rings, 9- upper O sealing ring, 10- lower O sealing ring, 11- oil cold house, 12- oil circuit, 13- relief groove, 14-
Retaining ring, 15- lubricating oil, 16- plug screw, 17- charge valve, 18- threaded hole, 19-O shape circle, 20- pair retaining ring, 21- capillary.
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 creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of high leakproofness nitrogen gas spring, including cylinder body
1, the inner cavity of cylinder body 1, which abuts, guide sleeve 2, and the inner cavity of guide sleeve 2 slidably connects plunger 3, and the top left side of guide sleeve 2 is affixed
There is retainer plate 4, the top of guide sleeve 2 is provided with dustband 5, and dustband 5 is socketed on the periphery wall of plunger 3, guide sleeve 2
Oil pocket 6 is provided between plunger 3, the periphery of plunger 3 is socketed with the first lip-shaped sealed ring 7 and the second lip-shaped sealed ring 8,
First lip-shaped sealed ring 7 is located at the top of the second lip-shaped sealed ring 8, and upper O sealing is provided between guide sleeve 2 and cylinder body 1
Circle 9 and lower O sealing ring 10, are provided with oily cold house 11, oily cold house between upper O sealing ring 9 and lower O sealing ring 10
11 abut against with the intracavity sidewall of cylinder body 1, are connected between oily cold house 11 and oil pocket 6 by oil circuit 12, outside the circumference of guide sleeve 2
Relief groove 13 is provided between side left bottom and cylinder body 1, the inner cavity of cylinder body 1 is horizontally disposed retaining ring 14, the interior bottom of chamber of cylinder body 1
Portion is provided with lubricating oil 15, and the left bottom of cylinder body 1 is connected with plug screw 16, the right side of plug screw 16 and the interior bottom of chamber of cylinder body 1
Charge valve 17 is connected between portion, the bottom of cylinder body 1 and the top of plunger 3 are provided with threaded hole 18.
Plunger 3 includes cylinder 31, and the intracavity bottom of cylinder 31 is provided with air column hole 32, and the periphery bottom of cylinder 31 is set
It is equipped with boss 33, the top of boss 33 is provided with mounting groove 34, pushes plunger 3 to be moved by air column hole 32.
O-ring 19 and secondary retaining ring 20 are provided between the top and cylinder body 1 of retainer plate 4, O-ring 19 is located at secondary retaining ring 20
Top, convenient for the fixation of retainer plate 4.
Dustband 5 includes circle body 51, and the inner cavity of circle body 51 and periphery are respectively arranged with inner ring 52 and bulge loop 53, and
Two groups are provided with, has cavity between two groups of bulge loops 53 between two groups of inner rings 52, so that dustband 5 is carried out double-layer seal, not only
The dust tightness of dustband 5 is improved, also increase leakproofness.
The top of charge valve 17 is provided with capillary 21, passes through 21 air inlet of capillary.
One concrete application of the present embodiment are as follows: have guide sleeve 2, the inner cavity of guide sleeve 2 by abutting in the inner cavity of cylinder body 1
Plunger 3 is slidably connected, the top left side of guide sleeve 2 is connected with retainer plate 4, sets between the top left side and cylinder body 1 of retainer plate 4
It is equipped with O-ring 19 and secondary retaining ring 20, convenient for the fixation and sealing of retainer plate 4, the top of guide sleeve 2 is provided with dustband 5, and anti-
Konisphere 5 is socketed on the periphery wall of plunger 3, and the inner cavity of dustband 5 is provided with two groups of inner rings 52, the periphery of dustband 5
Two groups of bulge loops 53 are provided with, by two groups of inner rings 52 and two groups of bulge loops 53, dustband 5 are made to play dual dust-proof effect, are improved
Device is dust-proof and leakproofness, and oil pocket 6 is provided between guide sleeve 2 and plunger 3, and oil liquid is injected in oily cold house 11, oil circuit is passed through
12 enter in oil pocket 6, and when plunger 3 slides up and down in guide sleeve 2, the oil liquid in oil pocket 6 improves sliding efficiency, and improves
Leakproofness between plunger 3 and guide sleeve 2, the bottom of guide sleeve 2 are provided with relief groove 13, and the inner cavity of cylinder body 1 is horizontally disposed to be had
Retaining ring 14, the intracavity bottom of cylinder body 1 are provided with lubricating oil 15, and by charge valve 17 to nitrogen is filled in cylinder body 1, nitrogen passes through hair
Tubule 21 enters, and provides power for device.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples
In can be combined in any suitable manner.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory
The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably
The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this
Utility model.The utility model is limited only by the claims and their full scope and equivalents.
Claims (5)
1. a kind of high leakproofness nitrogen gas spring, including cylinder body (1), it is characterised in that: the inner cavity of the cylinder body (1), which abuts, guiding
It covers (2), the inner cavity of the guide sleeve (2) slidably connects plunger (3), and the top left side of the guide sleeve (2) is connected with fixation
It encloses (4), is provided with dustband (5) at the top of the guide sleeve (2), and dustband (5) is socketed on the periphery of plunger (3)
Wall is provided with oil pocket (6) between the guide sleeve (2) and plunger (3), and the periphery of the plunger (3) is socketed with the first lip
Type sealing ring (7) and the second lip-shaped sealed ring (8), first lip-shaped sealed ring (7) are located at the upper of the second lip-shaped sealed ring (8)
Side, is provided with upper O sealing ring (9) and lower O sealing ring (10) between the guide sleeve (2) and cylinder body (1), it is described on
It is provided between portion's O-ring seals (9) and lower O sealing ring (10) oily cold house (11), the oil cold house (11) and cylinder body (1)
Intracavity sidewall abut against, pass through oil circuit (12) between oil cold house (11) and oil pocket (6) and be connected, the guide sleeve (2)
Periphery left bottom and cylinder body (1) between be provided with relief groove (13), the inner cavity of the cylinder body (1) is horizontally disposed gear
It encloses (14), the intracavity bottom of the cylinder body (1) is provided with lubricating oil (15), and the left bottom of the cylinder body (1) is connected with
Plug screw (16) is connected with charge valve (17), the cylinder between the right side of the plug screw (16) and the intracavity bottom of cylinder body (1)
Threaded hole (18) are provided at the top of the bottom and plunger (3) of body (1).
2. a kind of high leakproofness nitrogen gas spring according to claim 1, it is characterised in that: the plunger (3) includes cylinder
(31), the intracavity bottom of the cylinder (31) is provided with air column hole (32), and the periphery bottom of the cylinder (31) is provided with
Boss (33) is provided with mounting groove (34) at the top of the boss (33).
3. a kind of high leakproofness nitrogen gas spring according to claim 1, it is characterised in that: the top of the retainer plate (4)
O-ring (19) and secondary retaining ring (20) are provided between cylinder body (1), the O-ring (19) is located at the top of secondary retaining ring (20).
4. a kind of high leakproofness nitrogen gas spring according to claim 1, it is characterised in that: the dustband (5) includes circle
Body (51), the inner cavity of the circle body (51) and periphery are respectively arranged with inner ring (52) and bulge loop (53), and are provided with two
Group.
5. a kind of high leakproofness nitrogen gas spring according to claim 1, it is characterised in that: the top of the charge valve (17)
It is provided with capillary (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821844361.4U CN209026084U (en) | 2018-11-09 | 2018-11-09 | A kind of high leakproofness nitrogen gas spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821844361.4U CN209026084U (en) | 2018-11-09 | 2018-11-09 | A kind of high leakproofness nitrogen gas spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209026084U true CN209026084U (en) | 2019-06-25 |
Family
ID=66909371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821844361.4U Active CN209026084U (en) | 2018-11-09 | 2018-11-09 | A kind of high leakproofness nitrogen gas spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209026084U (en) |
-
2018
- 2018-11-09 CN CN201821844361.4U patent/CN209026084U/en active Active
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