CN202768529U - Waterproof mechanism and oil cylinder - Google Patents
Waterproof mechanism and oil cylinder Download PDFInfo
- Publication number
- CN202768529U CN202768529U CN 201220402335 CN201220402335U CN202768529U CN 202768529 U CN202768529 U CN 202768529U CN 201220402335 CN201220402335 CN 201220402335 CN 201220402335 U CN201220402335 U CN 201220402335U CN 202768529 U CN202768529 U CN 202768529U
- Authority
- CN
- China
- Prior art keywords
- snap ring
- ring
- guide sleeve
- waterproof mechanism
- cylinder barrel
- 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
Images
Landscapes
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The utility model discloses a waterproof mechanism and an oil cylinder. The waterproof mechanism is arranged between a cylinder barrel and a guide sleeve. The guide sleeve is arranged at one end of the cylinder barrel. The waterproof mechanism comprises a snap ring and a snap ring closing ring. The snap ring is arranged between the cylinder barrel and the guide sleeve. The snap ring closing ring is firmly arranged in the guide sleeve in embedded mode and abuts against the cylinder barrel and the snap ring. A waterproof elastic sealing ring is arranged on the junction portion of the snap ring closing ring and the cylinder barrel in embedded mode. The junction portion of the snap ring closing ring and the snap ring is filled with elastic stuffing. Therefore, the waterproof mechanism is simple in structure, low in cost and capable of effectively preventing water from permeating into the snap ring and the cylinder barrel, and solves the problems of snap ring rusting and guide sleeve sealing aging, and therefore utilization scope of a locking-key type guide sleeve oil cylinder is amplified.
Description
Technical field
The utility model relates to engineering machinery field, particularly a kind of waterproof mechanism and oil cylinder.
Background technique
At present, the waterproof construction of threaded guide sleeve oil cylinder is gradually improved, and can guarantee oil cylinder at the rainwater spray or soak for a long time use under the environment.
Yet along with the maximization of equipment, the oil cylinder cylinder diameter is increasing, and threaded guide sleeve processing, assembling difficulty are unfavorable for extensive, mass production use.
The model utility content
In view of this, the utility model proposes a kind of waterproof mechanism and oil cylinder of good water-proof effect simple in structure, to solve the waterproof problem of large cylinder diameter oil cylinder.
For achieving the above object, the technical solution of the utility model is achieved in that
On the one hand, the utility model provides a kind of waterproof mechanism, and this waterproof mechanism is arranged between cylinder barrel and the guide sleeve, described guide sleeve is arranged in an end of described cylinder barrel; This waterproof mechanism comprises: snap ring, and it is embedded between described cylinder barrel and the described guide sleeve; The snap ring back-up ring, it is fastening to be embedded in the described guide sleeve and to be resisted against described cylinder barrel and described snap ring; Wherein, the junction point of described snap ring back-up ring and described cylinder barrel is embedded with the water-proof elastic seal ring, and the junction point of described snap ring back-up ring and described snap ring is filled with elastic filler.
Preferably, in the above-mentioned waterproof mechanism, described guide sleeve outer periphery offer binding groove, and the bottom of described binding groove is concordant with the outside of described snap ring, described snap ring back-up ring is placed in the described binding groove, and described elastic filler is filled between the bottom and described snap ring back-up ring of described binding groove.
Further, in the above-mentioned waterproof mechanism, described snap ring back-up ring is fastenedly connected to described guide sleeve by fastening piece.
Replacedly, in the above-mentioned waterproof mechanism, described guide sleeve convexes with projection with respect to described cylinder barrel along described binding groove sidewall extension, and described projection outer periphery offer fixing slot, and this fixing slot is equipped be used to the fixing back-up ring that fixes described snap ring back-up ring.
Preferably, in the above-mentioned waterproof mechanism, described elastic filler is rubber cushion.
Preferably, in the above-mentioned waterproof mechanism, described water-proof elastic seal ring is waterproof O type circle.
Further, in the above-mentioned waterproof mechanism, described cylinder barrel offers the first groove, and described guide sleeve offers the second groove corresponding to described the first groove, and described snap ring is placed in described the first groove and the second groove.
Further, in the above-mentioned waterproof mechanism, described snap ring back-up ring offers groove, and described water-proof elastic seal ring is placed in the described groove.
On the other hand, the utility model also provides a kind of oil cylinder, and this oil cylinder is provided with any waterproof mechanism described above.
With respect to prior art, the utlity model has following advantage:
Waterproof mechanism of the present utility model, adopting the card key mode that the guide sleeve card is established is sealed in the cylinder barrel, snap ring back-up ring in waterproof mechanism and described guide sleeve mating face arrange elastic filler such as rubber cushion, and described snap ring back-up ring is fastened to described guide sleeve, stop water to infiltrate.And, water-proof elastic seal ring such as waterproof O type circle are set on the mating face of described snap ring back-up ring and cylinder barrel, utilize O type circle pre-compression force, further stop water to infiltrate.
As seen, waterproof mechanism of the present utility model is not only simple in structure, and cost is low, and can effectively stop water to infiltrate snap ring and cylinder barrel inside, prevents the problem of corrosion snap ring, aging guide sleeve sealing, thereby can enlarge the using scope of card key formula guide sleeve oil cylinder.
The oil cylinder that the utility model proposes is provided with above-mentioned any waterproof mechanism, because described waterproof mechanism has above-mentioned technique effect, therefore, the oil cylinder that is provided with this waterproof mechanism also should possess corresponding technique effect.
Description of drawings
The accompanying drawing that consists of a part of the present utility model is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the utility model card key formula guide sleeve waterproof structure embodiment's schematic diagram;
Fig. 2 is the enlarged diagram of A section indication among Fig. 1.
Description of reference numerals
1 cylinder barrel
2 guide sleeves
21 first elastic seal rings
22 second elastic seal rings
23 seal rings
24 guide rings
25 seal rings
26 dust rings
3 waterproof mechanism
31 snap rings
32 snap ring back-up rings
33 water-proof elastic seal rings
34 elastic fillers
35 fastening pieces
4 piston rods
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Need to prove, in the situation that do not conflict, embodiment and the feature among the embodiment in the utility model can make up mutually.
Basic thought of the present utility model is: design a kind of waterproof mechanism, adopting the card key mode that the guide sleeve card is established is sealed in the cylinder barrel, snap ring back-up ring in waterproof mechanism and described guide sleeve mating face arrange elastic filler such as rubber cushion, and described snap ring back-up ring is fastened to described guide sleeve, stop water to infiltrate.And, water-proof elastic seal ring such as waterproof O type circle are set on the mating face of described snap ring back-up ring and cylinder barrel, utilize O type circle pre-compression force, stop water to infiltrate.
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in further detail:
As depicted in figs. 1 and 2, it shows the waterproof mechanism of the present embodiment design, and this waterproof mechanism 3 is arranged between cylinder barrel 1 and the guide sleeve 2, described guide sleeve 2 is arranged in an end of described cylinder barrel 1; This waterproof mechanism 3 comprises: snap ring 31, snap ring back-up ring 32 and water-proof elastic seal ring 33 and elastic filler 34.Wherein:
Described snap ring 31 is embedded between described cylinder barrel 1 and the described guide sleeve 2.Described snap ring back-up ring 32 is fastening to be embedded in the described guide sleeve 2 and to be resisted against described cylinder barrel 1 and described snap ring 31.Described snap ring back-up ring 32 is embedded with water-proof elastic seal ring 33 with the junction point of described cylinder barrel 1, and described snap ring back-up ring 32 is filled with elastic filler 34 with the junction point of described snap ring 31.
It is pointed out that described waterproof mechanism can be card key formula waterproof mechanism.
Like this, on snap ring back-up ring 32 and guide sleeve 2 mating faces elastic filler 34 is set, stops water to infiltrate.And, water-proof elastic seal ring 33 is set such as waterproof O type circle on the mating face of snap ring back-up ring 32 and cylinder barrel 1, further stop water to infiltrate.Therefore, the present embodiment provides a kind of simple in structure and effective waterproof mechanism of waterproof for large cylinder diameter oil cylinder, and then solves the problem that water-tight device is processed, assembling difficulty is large of large cylinder diameter oil cylinder.
Preferably, in above-described embodiment, described guide sleeve 2 outer periphery offer binding groove, the bottom of described binding groove is concordant with the outside of described snap ring 31, described snap ring back-up ring 32 is placed in the described binding groove, and described elastic filler 34 is filled between the bottom and described snap ring back-up ring 32 of described binding groove.
In the various embodiments described above, described snap ring back-up ring 32 can be fastenedly connected to described guide sleeve 2 by fastening piece 35.For example: described fastening piece 35 can be screw, after described snap ring back-up ring 32 and the mating face of described guide sleeve 2 are located elastic filler 34 is set, utilizes described screw to carry out pretension, and described snap ring back-up ring 32 is fastened in the described guide sleeve 2.So, even if there is water to enter in the fitting recess of screw, also can be shielded by elastic filler 34, make water can not touch described cylinder barrel 1 or snap ring 31.
With the mode of above-mentioned employing fastening piece 35 alternatively, in the various embodiments described above, described guide sleeve 2 convexes with projection with respect to described cylinder barrel 1 along described binding groove sidewall extension, described projection outer periphery offer fixing slot, and this fixing slot is equipped be used to the fixing back-up ring that fixes described snap ring back-up ring 32.
Preferably, in the various embodiments described above, described elastic filler 34 can be rubber cushion.Described water-proof elastic seal ring 33 can be waterproof O type circle.
In the various embodiments described above, described cylinder barrel 1 offers the first groove, and described guide sleeve 2 offers the second groove corresponding to described the first groove, and described snap ring 31 is placed in described the first groove and the second groove.
In the various embodiments described above, described snap ring back-up ring 32 offers groove, and described water-proof elastic seal ring 33 is placed in the described groove.
As shown in Figure 2, also be provided with black box between described guide sleeve 2 and the described cylinder barrel 1, the sealing assembly comprises the first elastic seal ring 21, the second elastic seal ring 22, in the present embodiment, described the first elastic seal ring 21, the second elastic seal ring 22 can adopt O type circle, also can adopt water-proof elastic seal ring such as waterproof O type circle.
In the various embodiments described above, be provided with sealing and supporting component between described guide sleeve 2 and the described piston rod 4, as shown in Figure 2, described guide sleeve 2 is provided with seal ring 23, guide ring 24, seal ring 25 and dust ring 26 with described piston rod 4.
There are the various embodiments described above to find out, the utlity model has following advantage:
Waterproof mechanism of the present utility model, adopting the card key mode that the guide sleeve card is established is sealed in the cylinder barrel, snap ring back-up ring in waterproof mechanism and described guide sleeve mating face arrange elastic filler such as rubber cushion, and described snap ring back-up ring is fastened to described guide sleeve, stop water to infiltrate.And, water-proof elastic seal ring such as waterproof O type circle are set on the mating face of described snap ring back-up ring and cylinder barrel, utilize O type circle pre-compression force, further stop water to infiltrate.
As seen, waterproof mechanism of the present utility model is not only simple in structure, and cost is low, and can effectively stop water to infiltrate snap ring and cylinder barrel inside, prevents the problem of corrosion snap ring, aging guide sleeve sealing, thereby can enlarge the using scope of card key formula guide sleeve oil cylinder.Therefore, the utility model provides a kind of simple in structure and effective waterproof mechanism of waterproof for large cylinder diameter oil cylinder, and then solves the problem that water-tight device is processed, assembling difficulty is large of large cylinder diameter oil cylinder.
The utility model embodiment also provides a kind of oil cylinder, this oil cylinder is provided with above-mentioned any waterproof mechanism, because above-mentioned any waterproof mechanism has above-mentioned technique effect, therefore, the oil cylinder that is provided with this waterproof mechanism also should possess corresponding technique effect, its specific implementation process is similar to the above embodiments, does not hereby give unnecessary details.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. a waterproof mechanism is characterized in that, this waterproof mechanism (3) is arranged between cylinder barrel (1) and the guide sleeve (2), described guide sleeve (2) is arranged in an end of described cylinder barrel (1); This waterproof mechanism (3) comprising:
Snap ring (31), it is embedded between described cylinder barrel (1) and the described guide sleeve (2);
Snap ring back-up ring (32), it is fastening to be embedded in the described guide sleeve (2) and to be resisted against described cylinder barrel (1) and described snap ring (31);
Wherein, described snap ring back-up ring (32) is embedded with water-proof elastic seal ring (33) with the junction point of described cylinder barrel (1), and described snap ring back-up ring (32) is filled with elastic filler (34) with the junction point of described snap ring (31).
2. waterproof mechanism according to claim 1, it is characterized in that, described guide sleeve (2) outer periphery offer binding groove, the bottom of described binding groove is concordant with the outside of described snap ring (31), described snap ring back-up ring (32) is placed in the described binding groove, and described elastic filler (34) is filled between the bottom and described snap ring back-up ring (32) of described binding groove.
3. waterproof mechanism according to claim 2 is characterized in that, described snap ring back-up ring (32) is fastenedly connected to described guide sleeve (2) by fastening piece (35).
4. waterproof mechanism according to claim 2, it is characterized in that, described guide sleeve (2) convexes with projection with respect to described cylinder barrel (1) along described binding groove sidewall extension, described projection outer periphery offer fixing slot, and this fixing slot is equipped be used to the fixing back-up ring that fixes described snap ring back-up ring (32).
5. according to claim 1 to 4 each described waterproof mechanism, it is characterized in that, described elastic filler (34) is rubber cushion.
6. according to claim 1 to 4 each described waterproof mechanism, it is characterized in that, described water-proof elastic seal ring (33) is waterproof O type circle.
7. according to claim 1 to 4 each described waterproof mechanism, it is characterized in that, described cylinder barrel (1) offers the first groove, and described guide sleeve (2) offers the second groove corresponding to described the first groove, and described snap ring (31) is placed in described the first groove and the second groove.
8. according to claim 1 to 4 each described waterproof mechanism, it is characterized in that, described snap ring back-up ring (32) offers groove, and described water-proof elastic seal ring (33) is placed in the described groove.
9. an oil cylinder is characterized in that, this oil cylinder is provided with such as each described waterproof mechanism of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220402335 CN202768529U (en) | 2012-08-14 | 2012-08-14 | Waterproof mechanism and oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220402335 CN202768529U (en) | 2012-08-14 | 2012-08-14 | Waterproof mechanism and oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202768529U true CN202768529U (en) | 2013-03-06 |
Family
ID=47775109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220402335 Expired - Fee Related CN202768529U (en) | 2012-08-14 | 2012-08-14 | Waterproof mechanism and oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202768529U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026895A (en) * | 2018-09-17 | 2018-12-18 | 长江勘测规划设计研究有限责任公司 | A kind of sealing device for underwater oscillating oil cylinder |
-
2012
- 2012-08-14 CN CN 201220402335 patent/CN202768529U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026895A (en) * | 2018-09-17 | 2018-12-18 | 长江勘测规划设计研究有限责任公司 | A kind of sealing device for underwater oscillating oil cylinder |
| CN109026895B (en) * | 2018-09-17 | 2023-05-26 | 长江勘测规划设计研究有限责任公司 | Sealing device for underwater swing oil cylinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202768529U (en) | Waterproof mechanism and oil cylinder | |
| CN205780076U (en) | A kind of cone-shaped seal structure plugging together position for underwater connector | |
| CN201368057Y (en) | Mechanical sealing device | |
| CN201212527Y (en) | Water-sealed bearing | |
| CN211314860U (en) | Oil seal shaft sleeve with built-in balls | |
| CN204203521U (en) | Open cable connector box can be repeated | |
| CN203868189U (en) | Anti-oil-leakage brake caliper | |
| CN202360761U (en) | Bent rod rubber oil seal | |
| CN203404376U (en) | Barge oil cylinder double-dustproof sealing structure | |
| CN202440897U (en) | Floor drain core | |
| CN205446685U (en) | Integral type piston | |
| CN202040216U (en) | Sealing retainer ring for bearing | |
| CN203979406U (en) | A kind of special-shaped strip skeleton spring dust cover | |
| CN204419969U (en) | Vibration absorber sealing structure | |
| CN203962704U (en) | Be provided with the bearing of dust preventing component | |
| CN202209303U (en) | Bearing gland on bearing box of clean water pump | |
| CN104500496A (en) | Three-section four-piece split guide sleeve structure for oil cylinder | |
| CN205063853U (en) | Oil well screw rod drilling tool ball formula cardan shaft | |
| CN202251629U (en) | Air spring by adopting dual sealing structures | |
| CN203548314U (en) | Axial sealing structure of water pump | |
| CN203847476U (en) | Piston cylinder | |
| CN204099578U (en) | A kind of times air cylinder piston | |
| CN203877713U (en) | Elevator light curtain with acrylic sleeve pipe | |
| CN205298548U (en) | Novel swivel joint of central authorities | |
| CN211817033U (en) | Waterproof end cap of high closely knit resin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Loudi Zhongxing Hydraulic Fittings Co., Ltd. Assignor: Sanyi Heavy Industry Co., Ltd. Contract record no.: 2014430000138 Denomination of utility model: Waterproof mechanism and oil cylinder Granted publication date: 20130306 License type: Exclusive License Record date: 20140721 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20180814 |