CN203868111U - Guiding seat for piston - Google Patents
Guiding seat for piston Download PDFInfo
- Publication number
- CN203868111U CN203868111U CN201420198605.1U CN201420198605U CN203868111U CN 203868111 U CN203868111 U CN 203868111U CN 201420198605 U CN201420198605 U CN 201420198605U CN 203868111 U CN203868111 U CN 203868111U
- Authority
- CN
- China
- Prior art keywords
- guide holder
- piston
- resin layer
- compound resin
- layer
- 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 - Lifetime
Links
- 229920005989 resin Polymers 0.000 claims description 66
- 239000011347 resin Substances 0.000 claims description 66
- 150000001875 compounds Chemical class 0.000 claims description 60
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000007797 corrosion Effects 0.000 abstract description 8
- 238000005260 corrosion Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000000805 composite resin Substances 0.000 abstract 2
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 6
- 238000005461 lubrication Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 229910052582 BN Inorganic materials 0.000 description 5
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 5
- 239000004642 Polyimide Substances 0.000 description 5
- 229910000410 antimony oxide Inorganic materials 0.000 description 5
- 239000003822 epoxy resin Substances 0.000 description 5
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 5
- 229920000647 polyepoxide Polymers 0.000 description 5
- 229920001721 polyimide Polymers 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 150000003949 imides Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 2
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- ITRNXVSDJBHYNJ-UHFFFAOYSA-N tungsten disulfide Chemical compound S=[W]=S ITRNXVSDJBHYNJ-UHFFFAOYSA-N 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical group [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Sliding-Contact Bearings (AREA)
Abstract
The utility model provides a guiding seat for a piston. The piston comprises a piston shaft; the guiding seat comprises an inner layer and an outer layer, wherein the inner layer is hinged to the outer wall of the piston shaft; the outer layer is coaxially arranged with the inner layer; a whole is formed between the inner layer and the outer layer; the inner layer is longer than the outer layer; a composite resin layer is arranged on the inner wall of the inner layer, is as long as the inner layer and is 10-40 [mu]m in thickness. According to the utility model, the lubricating property and the corrosion resistance of the guiding seat are effectively improved to further avoid the application of a metal lining or a sliding bearing, so that the production cost of the guiding seat is reduced; in addition, the composite resin layer is low in friction coefficient, long in service life and excellent in sealing effect, so that the smoothness and the stability of the piston operation are ensured when the guiding seat is matched with the piston.
Description
Technical field
The utility model relates to a kind of guide holder for piston.
Background technique
Guide holder is the common a kind of parts in industrial Component field, and its Main Function is and a rock-steady structure of the common formation of piston, guarantees the smoothness of piston in running.For guaranteeing that guide holder brings into play good performance, traditional design meeting configures sliding bearing in guide holder, for example: the guide holder in automobile absorber can be built-in without cunning dynamic bearing.
But traditional the rising that sliding bearing can bring cost is installed in guide holder, and installation process is complicated, inefficiency, and may produces the problems such as pollutions, inefficacy, be unfavorable for the regularity and stability that piston moves.
Model utility content
The technical problems to be solved in the utility model is that the guide holder cost of production for piston of prior art is high, manufacturing efficiency is low in order to overcome, easy pollution, easily lost efficacy and the defect such as the regularity and stability of piston operation is poor, and a kind of guide holder for piston is provided.
The utility model is to solve above-mentioned technical problem by following technical proposals:
A kind of guide holder for piston, this piston comprises a piston shaft, its feature is, this guide holder comprise one be articulated with internal layer on the outer wall of this piston shaft and one with the skin of the coaxial setting of this internal layer, between this internal layer and this skin, shape is in aggregates, and the length of this internal layer is greater than this outer field length;
The inwall of this internal layer is provided with a compound resin layer, the length of this compound resin layer and this internal layer equal in length, and the thickness of this compound resin layer is 10 μ m-40 μ m.
In this programme, compound resin layer is material well known in the prior art, and it comprises existing known resin and solid lubrication material, at this, does not just do too much and repeats.In addition, on the inwall of internal layer, be provided with compound resin layer, wear volume while having reduced piston operation, effectively improve greasy property and the Corrosion Protection of the internal layer of guide holder, and then use steel ring or sliding bearing have been avoided, thereby reduce guide holder cost of production, reduced assembly process, guaranteed the regularity and stability that when this guide holder coordinates with piston, piston moves simultaneously, extended the working life of guide holder.
Preferably, the thickness of this compound resin layer is 40 μ m.
Preferably, this compound resin layer and this internal layer adopt one-body molded shape in aggregates.
In this programme, adopt said structure form, reduced the assembly process of guide holder, improved its make efficiency, reduced manufacturing cost simultaneously.
Preferably, this compound resin layer covers on the inwall of this internal layer.
Meeting on the basis of related domain general knowledge, above-mentioned each optimum condition, can combination in any, obtains each preferred embodiments of the utility model.
Positive progressive effect of the present utility model is:
The utility model can effectively improve greasy property and the Corrosion Protection of the inwall of guide holder, and then use metal inner lining or sliding bearing have been avoided, thereby reduce the cost of production of guide holder, simultaneously the low and long service life of the friction factor of compound resin layer, sealing effect are good, have guaranteed the regularity and stability that when this guide holder coordinates with piston, piston moves.
Accompanying drawing explanation
Fig. 1 is the structural representation of the guide holder of the utility model preferred embodiment.
Fig. 2 is the plan view of the guide holder corresponding with Fig. 1.
Description of reference numerals:
Guide holder: 1 internal layer: 11 skins: 12
Compound resin layer: 2
Embodiment
Lift a preferred embodiment below, and carry out by reference to the accompanying drawings the clearer the utility model that intactly illustrates.
As shown in Figure 1-2, at the utility model, for the guide holder of piston, piston comprises piston shaft, guide holder 1 comprise internal layer 11 on the outer wall that is articulated with piston shaft and with the skin 12 of the coaxial setting of internal layer 11.Between internal layer 11 and outer 12, shape is in aggregates, and the length of internal layer 11 is greater than the length of skin 12.Wherein, in the present embodiment, the material of this guide holder is iron or aluminium.
The inwall of this internal layer is provided with a compound resin layer 2.The length of compound resin layer 2 and internal layer equal in length, and the thickness of this compound resin layer 2 is 10 μ m-40 μ m.Can effectively improve greasy property and the Corrosion Protection of the internal layer of guide holder like this, and then use steel ring or sliding bearing have been avoided, thereby reduce the cost of production of guide holder, guaranteed the regularity and stability of piston operation when this guide holder coordinates with piston simultaneously.Preferably, the thickness of this compound resin layer is 40 μ m.
Certainly, in the present embodiment, in compound resin layer, contain resin and solid lubrication material.Resin is that any one material in epoxy resin (Shanghai Zheng Xingfa International Trading Company Ltd), polyamide one acid imide (new Heng Xin, Shenzhen Industrial Co., Ltd.), polyurethane (Shanghai Zhuo Fine Chemical Co., Ltd), polyimide (new Heng Xin, Shenzhen Industrial Co., Ltd.), teflon (east, Shanghai fluorine chemical Science and Technology Ltd.) or polyether-ether-ketone (new Heng Xin, Shenzhen Industrial Co., Ltd.) forms, or the combination in any in epoxy resin, polyamide one acid imide, polyurethane, polyimide, teflon or polyether-ether-ketone.Solid lubrication material is molybdenum disulfide (7000 orders, Huayuan Chemical Co., Ltd. of Shanghai Huayi Group), boron nitride (Baoding Zhong Puruituo Science and Technology Ltd.), graphite (10000 orders or 5000 orders, Zhongshan city Gao lubriation material Co., Ltd), iron oxide (Shanghai Zhong Yan Chemical Co., Ltd.), antimony oxide (Shanghai Xiang Xin flame retardant material Co., Ltd), silica (Xuancheng Jingrui New Material Co., Ltd.), aluminium oxide (Huayuan Chemical Co., Ltd. of Shanghai Huayi Group), tungsten disulfide (100nm, Zhongshan city Gao lubriation material Co., Ltd), any one in titanium oxide (Xuancheng Jingrui New Material Co., Ltd.), or molybdenum disulfide, boron nitride, graphite, iron oxide, antimony oxide, silica, aluminium oxide, tungsten disulfide, the material of the combination in any in titanium oxide forms.
In addition, this compound resin layer 2 adopts one-body molded shape in aggregates with this internal layer 11.
In addition, this compound resin layer 2 adopts coating method to cover on the inwall of this internal layer 11.Wherein, this coating method is thermal spraying or stencils or spraying or UV solidify or be heating and curing or room curing.
Below for adopting the utility model guide holder to carry out the result that the test of single action platform vibration damper durability experiment obtains when without oil drag:
Effect embodiment 1
The internal layer of guide holder and outer field material are iron, and the internal diameter of the internal layer of guide holder is 25mm.And resin adopts epoxy resin and polyimide in compound resin layer, solid lubrication material adopts boron nitride and antimony oxide.Table 1 has provided existing guide holder data, and table 2 has provided the present embodiment guide holder data.Wherein, lateral force is that lateral deviation, the eccentric wear power to the inwall of internal layer causing occur while moving on the internal layer inwall of guide holder piston shaft.
Table 1, existing guide holder data
| Parameter | Existing guide holder |
| The lateral force applying | 2000N |
| Load time | 100 hours |
| Piston shaft movement travel | 60mm |
Table 2, the present embodiment guide holder data
| Parameter | Existing guide holder |
| Compound resin layer thickness | 10μm |
| The lateral force applying | 2000N |
| Load time | 100 hours |
| Piston shaft movement travel | 60mm |
Table 3, existing guide holder and the contrast of the present embodiment guide holder
| Parameter | Existing guide holder | The present embodiment guide holder |
| The axial straight line reciprocating frequence of piston shaft | 3Hz | 3Hz |
| The friction factor of sliding bearing or compound resin layer | 0.08-0.15 | 0.04-0.08 |
| The volume of wearing and tearing | 1.27×10 -6m 3 | 5.9×10 -7m 3 |
| Piston shaft movement velocity | 0.36m/s | 0.36m/s |
| The wear extent of sliding bearing or compound resin layer | 4.9×10 -14m3/N·m | 2.29×10 -15m 3/N·m |
| The working life of sliding bearing or compound resin layer | 1000000 times | 1500000 times |
Table 3 has provided two kinds of guide holder lower piston axle frequency of okperation, friction factor, wear extent and contrasts in working life, and wherein, be piston shaft reciprocating number of times in guide holder the working life of sliding bearing or compound resin layer; Wear extent=V/2Fvt, V is the volume of wearing and tearing, and F is the lateral force applying, and v is piston shaft movement velocity, and t is the load time.As known from Table 3, the lateral force applying on the present embodiment guide holder, piston shaft movement travel are all under the condition identical with the lateral force applying on existing guide holder, piston shaft movement travel and load time, the present embodiment guide holder is with respect to existing guide holder, the wear extent of its compound resin layer be existing sliding bearing wear extent 4.67%, its compound resin layer is 1.5 times of working life of existing sliding bearing working life.Therefore, the guide holder of employing the present embodiment can effectively improve greasy property and the Corrosion Protection of the compound resin layer of guide holder, and then avoided use sliding bearing, thereby reduce the cost of production of guide holder, simultaneously the low and long service life of the friction factor of compound resin layer, has guaranteed the regularity and stability that when this guide holder coordinates with piston, piston moves.
In addition, the not leaded poisonous metal that waits of compound resin layer, is conducive to health in environmental protection and production process.
Effect embodiment 2
The internal layer of guide holder and outer field material are iron, and the internal diameter of the internal layer of guide holder is 25mm.And resin adopts epoxy resin and polyimide in compound resin layer, solid lubrication material adopts boron nitride and antimony oxide.Table 4 has provided existing guide holder data, and table 5 has provided the present embodiment guide holder data.Wherein, lateral force is that lateral deviation, the eccentric wear power to the inwall of internal layer causing occur while moving on the internal layer inwall of guide holder piston shaft.
Table 4, existing guide holder data
| Parameter | Existing guide holder |
| The lateral force applying | 2000N |
| Load time | 100 hours |
| Piston shaft movement travel | 60mm |
Table 5, the present embodiment guide holder data
| Parameter | Existing guide holder |
| Compound resin layer thickness | 20μm |
| The lateral force applying | 2000N |
| Load time | 100 hours |
| Piston shaft movement travel | 60mm |
Table 6, existing guide holder and the contrast of the present embodiment guide holder
| Parameter | Existing guide holder | The present embodiment guide holder |
| The axial straight line reciprocating frequence of piston shaft | 3Hz | 3Hz |
| The friction factor of sliding bearing or compound resin layer | 0.08-0.15 | 0.04-0.08 |
| The volume of wearing and tearing | 1.27×10 -6m 3 | 6.48×10 -7m 3 |
| Piston shaft movement velocity | 0.36m/s | 0.36m/s |
| The wear extent of sliding bearing or compound resin layer | 4.9×10 -14m 3/N·m | 2.5×10 -15m 3/N·m |
| The working life of sliding bearing or compound resin layer | 1000000 times | 2000000 times |
Table 6 has provided two kinds of guide holder lower piston axle frequency of okperation, friction factor, wear extent and contrasts in working life, and wherein, be piston shaft reciprocating number of times in guide holder the working life of sliding bearing or compound resin layer; Wear extent=V/2Fvt, V is the volume of wearing and tearing, and F is the lateral force applying, and v is piston shaft movement velocity, and t is the load time.As known from Table 6, the lateral force applying on the present embodiment guide holder, piston shaft movement travel are all under the condition identical with the lateral force applying on existing guide holder, piston shaft movement travel and load time, the present embodiment guide holder is with respect to existing guide holder, the wear extent of its compound resin layer be existing sliding bearing wear extent 5.1%, its compound resin layer is 2 times of existing sliding bearing working life working life.Therefore, the guide holder of employing the present embodiment can effectively improve greasy property and the Corrosion Protection of the compound resin layer of guide holder, and then avoided use sliding bearing, thereby reduce the cost of production of guide holder, simultaneously the low and long service life of the friction factor of compound resin layer, has guaranteed the regularity and stability that when this guide holder coordinates with piston, piston moves.
Effect embodiment 3
The internal layer of guide holder and outer field material are iron, and the internal diameter of the internal layer of guide holder is 25mm.And resin adopts epoxy resin and polyimide in compound resin layer, solid lubrication material adopts boron nitride and antimony oxide.Table 7 has provided existing guide holder data, and table 8 has provided the present embodiment guide holder data.Wherein, lateral force is that lateral deviation, the eccentric wear power to the inwall of internal layer causing occur while moving on the internal layer inwall of guide holder piston shaft.
Table 7, existing guide holder data
| Parameter | Existing guide holder |
| The lateral force applying | 2000N |
| Load time | 100 hours |
| Piston shaft movement travel | 60mm |
Table 8, the present embodiment guide holder data
| Parameter | Existing guide holder |
| Compound resin layer thickness | 40μm |
| The lateral force applying | 2000N |
| Load time | 100 hours |
| Piston shaft movement travel | 60mm |
Table 9, existing guide holder and the contrast of the present embodiment guide holder
| Parameter | Existing guide holder | The present embodiment guide holder |
| The axial straight line reciprocating frequence of piston shaft | 3Hz | 3Hz |
| The friction factor of sliding bearing or compound resin layer | 0.08-0.15 | 0.04-0.08 |
| The volume of wearing and tearing | 1.27×10 -6m 3 | 7.77×10 -7m 3 |
| Piston shaft movement velocity | 0.36m/s | 0.36m/s |
| The wear extent of sliding bearing or compound resin layer | 4.9×10 -14m 3/N·m | 3×10 -15m 3/N·m |
| The working life of sliding bearing or compound resin layer | 1000000 times | 2500000 times |
Table 9 has provided the contrast in two kinds of guide holder lower piston axle frequency of okperation, friction factor, wear extent and compound resin layer working life, and wherein, be piston shaft reciprocating number of times in guide holder the working life of sliding bearing or compound resin layer; Wear extent=V/2Fvt, V is the volume of wearing and tearing, and F is the lateral force applying, and v is piston shaft movement velocity, and t is the load time.As known from Table 3, the lateral force applying on the present embodiment guide holder, piston shaft movement travel are all under the condition identical with the lateral force applying on existing guide holder, piston shaft movement travel and load time, the present embodiment guide holder is with respect to existing guide holder, the wear extent of its compound resin layer be existing sliding bearing wear extent 6.1%, its compound resin layer is 2.5 times of existing sliding bearing working life working life.Therefore, the guide holder of employing the present embodiment can effectively improve greasy property and the Corrosion Protection of the compound resin layer of guide holder, and then avoided use sliding bearing, thereby reduce the cost of production of guide holder, simultaneously the low and long service life of the friction factor of compound resin layer, has guaranteed the regularity and stability that when this guide holder coordinates with piston, piston moves.
In sum, when the thickness of compound resin layer is 40 μ m, be 2,500,000 the working life of its compound resin layer, make greasy property and the Corrosion Protection effect of this compound resin layer better, low and the long service life of the friction factor of compound resin layer simultaneously, and then the regularity and stability that piston moves while having guaranteed that this guide holder coordinates with piston.Therefore, in the utility model, when the thickness of compound resin layer is 40 μ m, the best results of guide holder.
Although more than described embodiment of the present utility model, it will be understood by those of skill in the art that this only illustrates, protection domain of the present utility model is limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present utility model and essence, can make various changes or modifications to these mode of executions, but these changes and modification all fall into protection domain of the present utility model.
Claims (4)
1. the guide holder for piston, this piston comprises a piston shaft, it is characterized in that, this guide holder comprise one be articulated with internal layer on the outer wall of this piston shaft and one with the skin of the coaxial setting of this internal layer, between this internal layer and this skin, shape is in aggregates, and the length of this internal layer is greater than this outer field length;
The inwall of this internal layer is provided with a compound resin layer, the length of this compound resin layer and this internal layer equal in length, and the thickness of this compound resin layer is 10 μ m-40 μ m.
2. guide holder as claimed in claim 1, is characterized in that, the thickness of this compound resin layer is 40 μ m.
3. the guide holder as described in any one in claim 1-2, is characterized in that, this compound resin layer and this internal layer adopt one-body molded shape in aggregates.
4. the guide holder as described in any one in claim 1-2, is characterized in that, this compound resin layer covers on the inwall of this internal layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420198605.1U CN203868111U (en) | 2014-04-22 | 2014-04-22 | Guiding seat for piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420198605.1U CN203868111U (en) | 2014-04-22 | 2014-04-22 | Guiding seat for piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203868111U true CN203868111U (en) | 2014-10-08 |
Family
ID=51649069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420198605.1U Expired - Lifetime CN203868111U (en) | 2014-04-22 | 2014-04-22 | Guiding seat for piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203868111U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114562493A (en) * | 2022-03-09 | 2022-05-31 | 王东凯 | Middle cylinder body structure of hydraulic breaking hammer |
-
2014
- 2014-04-22 CN CN201420198605.1U patent/CN203868111U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114562493A (en) * | 2022-03-09 | 2022-05-31 | 王东凯 | Middle cylinder body structure of hydraulic breaking hammer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141008 |
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| CX01 | Expiry of patent term |