CN206738569U - Seal, pressing device and pressure break Five-cylinder piston pump - Google Patents
Seal, pressing device and pressure break Five-cylinder piston pump Download PDFInfo
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- CN206738569U CN206738569U CN201720456577.2U CN201720456577U CN206738569U CN 206738569 U CN206738569 U CN 206738569U CN 201720456577 U CN201720456577 U CN 201720456577U CN 206738569 U CN206738569 U CN 206738569U
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- annular
- annular lip
- ring
- seal
- lip
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Abstract
The utility model discloses a kind of seal, pressing device and pressure break Five-cylinder piston pump.Wherein, seal includes sealing ring and O-ring；One end of sealing ring sets first annular lip and the second annular lip, and a first annular lip is formed between first annular lip and the second annular lip, and O-ring is arranged in first annular lip；The outer rim side of sealing ring sets the 3rd annular lip, and the second annular lip is formed between the second annular lip and three annular lips；The inner ring side of sealing ring sets an annular groove.Pressing device includes guide sleeve, cylinder barrel and above-mentioned seal.Pressure break uses above-mentioned seal or pressing device with Five-cylinder piston pump.Seal will not be extruded the utility model under elevated pressure conditions, and will not be run through under instantaneous pressure and cause to reveal.
Description
Technical field
It the utility model is related to technical field of sealing technology, more particularly to five cylinder posts of a kind of seal, pressing device and pressure break
Fill in pump.
Background technology
Pressure break bears high pressure with static seal of the Five-cylinder piston pump at gland, and bears with mud, fracturing fluid, acidity
The corrosion of liquid and other medium.Using such as O-ring+back-up ring, D types circle, D type circles before gland sealing in pressure break Five-cylinder piston pump
The structures such as+back-up ring, Y-shaped ring, but instantaneous pressure can reach 70-140mpa sometimes, and difference occurs in the short time in these structures
The leakage of degree.For this operating mode, Shanghai only ten thousand Sealing Technology Co., Ltd.s have developed a kind of patented product " stone in 2013
Oil well cementation and fracturing unit pressing cover of plunger piston pump device ", Application No.：201320582182.9.
Utility model content
The technical problems to be solved in the utility model is：Pressure break is squeezed with the seal of Five-cylinder piston pump when bearing high pressure
Go out and in instantaneous pressure by through causing to reveal.
The utility model is that technical scheme is used by solving above-mentioned technical problem：
A kind of seal, including sealing ring and O-ring；One end of the sealing ring sets first annular lip and the second annular
Lip, forms a first annular lip between the first annular lip and second annular lip, the O-ring is arranged on
In the first annular lip；The outer rim side of the sealing ring sets the 3rd annular lip, second annular lip and described three
The second annular lip is formed between annular lip；The inner ring side of the sealing ring sets an annular groove.
As a kind of improvement of seal of the present utility model, the O-ring is interference fitted with the first annular lip.
As a kind of improvement of seal of the present utility model, the material of the O-ring is nitrile rubber.
As a kind of improvement of seal of the present utility model, the section of second annular lip is V-shape structure.
As a kind of improvement of seal of the present utility model, the material of the sealing ring is polyurethane.
A kind of pressing device, it is characterised in that：Including guide sleeve, cylinder barrel and above-mentioned seal, the guide sleeve it is outer
Ring side sets a ring-shaped groove, and the seal is enclosed in the ring-shaped groove, and the bottom of the ring-shaped groove sets an annular protrusion,
The annular protrusion is embedded in the annular groove, and the cylinder barrel is enclosed on the guide sleeve, the outer rim side of the guide sleeve and
The inwall of second annular lip and the cylinder barrel, which is formed, to be sealed.
As a kind of improvement of pressing device of the present utility model, a ring-shaped step is set in the side wall of the ring-shaped groove,
Second annular lip described in the ring-shaped step face, the guide sleeve is in the shape at the outer of one end of the ring-shaped step
Into an annular slope.
As a kind of improvement of pressing device of the present utility model, the annular protrusion is matched somebody with somebody with the annular groove interference
Close.
A kind of pressure break Five-cylinder piston pump, use seal or pressing device described above.
The beneficial effect that the utility model is brought using above-mentioned technical proposal is：
Pressing device of the present utility model can bear high pressure, and seal will not be extruded under high pressure, in moment height
It will not be run through under the conditions of pressure and cause to reveal；
In second annular lip of seal of the present utility model, when media operation pressure rise, procheilon changes contact
Shape and enlarged contact stress, the second annular lip and the 3rd annular lip are while O-shaped with being bonded even closer by sealing surface
Circle also provides fastening force to first annular lip and the second annular lip, so as to realize sealing function；
Pressure on the pressure side is transferred to ring-shaped step, annular table by the annular slope set on guide sleeve of the present utility model
Pressure is transferred to seal by rank to entering row buffering from pressure on the pressure side, makes seal to by the sealing work of sealing surface
Firmly increase, so that seal is by sealing surface with being bonded even closer, while can avoid high caused by drawing flow
Pressure and caused by through leakage；
Annular groove interference fit on annular protrusion and seal on guide sleeve of the present utility model, so as to seal
Part is fastened on the guide sleeve.
Brief description of the drawings
Fig. 1 is the profile of the seal of the embodiment of the utility model one；
Fig. 2 is the profile of the pressing device of the embodiment of the utility model one.
In figure, 1- sealing rings；2-O type circles；3- guide sleeves；4- cylinder barrels；The first annular lips of 11-；The annular lips of 12- second
Portion；The annular lips of 13- the 3rd；The annular lips of 14- second；15- annular grooves；31- annular slopes；32- ring-shaped steps；33- rings
Shape is raised.
Embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Each embodiment of type is explained in detail.
As shown in figure 1, a kind of seal, including sealing ring 1 and O-ring 2；One end of sealing ring 1 sets first annular lip
11 and second annular lip 12, a first annular lip, O-ring are formed between the first annular annular lip 12 of lip 11 and second
2 are arranged in first annular lip；The outer rim side of sealing ring 1 sets the 3rd annular lip 13, the second annular lip 12 and three annulars
The second annular lip 14 is formed between lip；The inner ring side of sealing ring 1 sets an annular groove 15.
In the present embodiment, the second annular lip 14 can preserve hydraulic oil, the second annular lip 12 and the 3rd annular lip
13 procheilon contacts with by sealing surface, and produces pressure, even if not applying thrust, the second annular lip 14 in its contact site
Also certain internal pressure can be sealed.Because the second annular lip 12 and the 3rd annular lip 13 have " self-styled " effect, work as media operation
During pressure rise, procheilon changes contact shape and enlarged contact stress, and lip by sealing surface with being bonded closer, so as to realize
Sealing function.O-ring 2 can increase the annular lip 12 of first annular lip 11 and second with by the contact stress of sealing surface, making
Instantaneous pressure by when can buffer partial pressure, the 3rd annular lip 13 can also play sealing function in addition, reach series connection
The effect of sealing.Annular groove 15 is used to be entrenched in miscellaneous part, so as to fit sealing part.
In one embodiment of the present utility model, O-ring 2 is interference fitted with first annular lip.In the present embodiment, O
Type circle 2 provides fastening force to the first annular annular lip 12 of lip 11 and second, makes the first annular annular lip of lip 11 and second
Portion 12 is in opening trend, the first annular annular lip 12 of lip 11 and second is bonded closely with by sealing surface.
In one embodiment of the present utility model, the material of O-ring 2 is nitrile rubber.In the present embodiment, O-ring 2 has
There are higher tensile strength and resistance to Jie's performance, and cost is more reasonable, disclosure satisfy that to the first annular annular of lip 11 and second
Lip 12 provides the demand of fastening force.
In one embodiment of the present utility model, the section of the second annular lip 14 is V-shape structure.The present embodiment
In, 14 easy stress of the second annular lip and make the second annular lip 12 and the 3rd annular lip 13 with being formed very by sealing surface
Good contact, and change with media operation pressure rise the contact shape and increase contact stress of procheilon, so as to realize very
Good sealing effectiveness.
In one embodiment of the present utility model, the material of sealing ring 1 is polyurethane.In the present embodiment, sealing ring 1 has
There is good wearability, so as to ensure that sealing effectiveness and extend service life.
As shown in Fig. 2 a kind of pressing device, including guide sleeve 3, cylinder barrel 4 and above-mentioned seal, the outer shroud of guide sleeve 3
Side sets a ring-shaped groove, and seal is enclosed in ring-shaped groove, and the bottom of ring-shaped groove sets an annular protrusion 33, and annular protrusion 33 is embedding
Enter in annular groove 15, so as to which seal is fixed in annular groove 15；Cylinder barrel 4 is enclosed on guide sleeve 3, outside guide sleeve 3
The inwall of the second annular lip 14 and cylinder barrel 4 of ring side and seal, which is formed, to be sealed.
In one embodiment of the present utility model, a ring-shaped step 32, ring-shaped step 32 are set in the side wall of ring-shaped groove
The second annular lip of face 12, guide sleeve 3 are forming an annular slope 31 at the outer of one end of ring-shaped step 32.This reality
Apply in example, pressure on the pressure side is transferred to ring-shaped step 32, annular table by the annular slope 31 that one end outer of guide sleeve 3 is set
Pressure is transferred to seal by rank 32 to entering row buffering from pressure on the pressure side, makes seal to by the sealing of sealing surface
Active force increases, so that seal is by sealing surface with being bonded even closer, while can avoid caused by drawing flow
High pressure, which runs through, to be caused to reveal.
In one embodiment of the present utility model, annular protrusion 33 is interference fitted with annular groove 15.In the present embodiment,
Seal can be preferably fastened in the ring-shaped groove of guide sleeve 3.
A kind of pressure break Five-cylinder piston pump, use above-mentioned seal or pressing device.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model discloses
Change or replacement, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should
It is defined by scope of the claims.
Claims (9)
- A kind of 1. seal, it is characterised in that：Including sealing ring and O-ring；One end of the sealing ring sets first annular lip With the second annular lip, a first annular lip, the O are formed between the first annular lip and second annular lip Type circle is arranged in the first annular lip；The outer rim side of the sealing ring sets the 3rd annular lip, second annular lip The second annular lip is formed between portion and three annular lip；The inner ring side of the sealing ring sets an annular groove.
- A kind of 2. seal as claimed in claim 1, it is characterised in that：The O-ring and the first annular lip interference Coordinate.
- A kind of 3. seal as claimed in claim 2, it is characterised in that：The material of the O-ring is nitrile rubber.
- A kind of 4. seal as claimed in claim 1, it is characterised in that：The section of second annular lip is V-shape knot Structure.
- A kind of 5. seal as claimed in claim 1, it is characterised in that：The material of the sealing ring is polyurethane.
- A kind of 6. pressing device, it is characterised in that：Including any one in guide sleeve, cylinder barrel and such as claim 1 to claim 5 Seal described in, the outer rim side of the guide sleeve set a ring-shaped groove, and the seal is enclosed in the ring-shaped groove, institute The bottom for stating ring-shaped groove sets an annular protrusion, and the annular protrusion is embedded in the annular groove, and the cylinder barrel is enclosed on described On guide sleeve, the outer rim side of the guide sleeve and the inwall of second annular lip and the cylinder barrel are formed and sealed.
- A kind of 7. pressing device as claimed in claim 6, it is characterised in that：An annular table is set in the side wall of the ring-shaped groove Rank, the second annular lip described in the ring-shaped step face, the guide sleeve is close to the outer of one end of the ring-shaped step Place forms an annular slope.
- A kind of 8. pressing device as claimed in claim 6, it is characterised in that：The annular protrusion and the annular groove interference Coordinate.
- A kind of 9. pressure break Five-cylinder piston pump, it is characterised in that：Usage right requirement 1 is into claim 8 described in any one Seal or pressing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720456577.2U CN206738569U (en) | 2017-04-27 | 2017-04-27 | Seal, pressing device and pressure break Five-cylinder piston pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720456577.2U CN206738569U (en) | 2017-04-27 | 2017-04-27 | Seal, pressing device and pressure break Five-cylinder piston pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206738569U true CN206738569U (en) | 2017-12-12 |
Family
ID=60562450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720456577.2U Active CN206738569U (en) | 2017-04-27 | 2017-04-27 | Seal, pressing device and pressure break Five-cylinder piston pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206738569U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026660A (en) * | 2018-08-10 | 2018-12-18 | 上海清河机械有限公司 | A kind of dual-seal circle |
-
2017
- 2017-04-27 CN CN201720456577.2U patent/CN206738569U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026660A (en) * | 2018-08-10 | 2018-12-18 | 上海清河机械有限公司 | A kind of dual-seal circle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Building 1, No. 373 Renqing Road, Pudong New Area, Shanghai, 200319 Patentee after: Shanghai Weiwan Sealing Technology Co., Ltd Address before: 200319, No. 1300, Lane 3, Cambridge East Road, Cambridge Town, Shanghai, Pudong New Area Patentee before: VONESEALS TECHNOLOGY (SHANGHAI) Co.,Ltd. |
|
| CP03 | Change of name, title or address |