CN204403364U - A kind of EP cylinder cap unidirectional valve opening special sealing ring formula integral sealing plug - Google Patents
A kind of EP cylinder cap unidirectional valve opening special sealing ring formula integral sealing plug Download PDFInfo
- Publication number
- CN204403364U CN204403364U CN201520026133.6U CN201520026133U CN204403364U CN 204403364 U CN204403364 U CN 204403364U CN 201520026133 U CN201520026133 U CN 201520026133U CN 204403364 U CN204403364 U CN 204403364U
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- seal ring
- groove
- draw
- shoulder
- valve opening
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Abstract
The utility model relates to auto parts and components field, refers to a kind of EP cylinder cap unidirectional valve opening special sealing ring formula integral sealing plug particularly.Comprise coaxial the shutoff bar, shoulder and the block head that arrange; Described shoulder is fixed on shutoff boom end, and shoulder diameter is less than shutoff shank diameter, and both joints are provided with the changeover portion of taper type; Described block head is fixed on shoulder front end, and the front end of block head is provided with the guide head of taper type, it is characterized in that: block head and shoulder joint be provided with radially cave in one enclose draw-in groove; What be provided with " O " type in described draw-in groove has flexible seal ring; Described seal ring is socketed in draw-in groove, and the internal diameter of seal ring is less than the external diameter of draw-in groove, and the external diameter of seal ring is greater than the external diameter of block head.The utility model structure is simple, coordinates by seal ring and draw-in groove the problem solving seal ring Long-Time Service and easily destroy, and easy to process, has great promotional value.
Description
Technical field
The utility model relates to auto parts and components field, refers to a kind of EP cylinder cap unidirectional valve opening special sealing ring formula integral sealing plug particularly.
Background technique
EP cylinder cap, after all machinings complete, will carry out leak test to the high and low pressure oil duct of cylinder cap and water channel, in checking process, needs to carry out shutoff to unidirectional valve opening, blanking cover hole etc.Sealing effect directly affects testing precision, if sealing effect is very poor, cannot judge whether part really leaks.And for the sealing of unidirectional valve opening, because aperture end face is not regular plane, so can not seal with hole end surface, can only seal with aperture.
The sealing of existing unidirectional valve opening mainly uses the flexible unidirectional valve opening of polyurethane sealing ring radial blockage, and polyurethane shutoff is subject to radial expansion distortion and seals aperture.This method structure is simple, but Long-Time Service is easily damaged, and main cause has: one is that the distortion of this extrusion expansion repeatedly easily causes shutoff brittle failure; Two be the coaxality of shutoff by manufacturing, assembly precision affects, and is difficult to ensure coaxial with unidirectional valve opening, during insertion and irregular aperture rubs easy flanging breakage; Three is can not be out of shape retraction in time by during shutoff bar structural limitations rollback after shutoff is expanded, and forms back taper, extrudes pull breakage with hole wall.These three kinds of reasons cause special shutoff in use to damage, and frequently change, and affect the inspection of high and low pressure tightness of oil conduit and normally carrying out of production.
Summary of the invention
The purpose of this utility model is exactly the deficiency that will solve above-mentioned background technology, provides a kind of EP cylinder cap unidirectional valve opening special sealing ring formula integral sealing plug.
The technical solution of the utility model is: a kind of EP cylinder cap unidirectional valve opening special sealing ring formula integral sealing plug, comprises coaxial the shutoff bar, shoulder and the block head that arrange; Described shoulder is fixed on shutoff boom end, and shoulder diameter is less than shutoff shank diameter, and both joints are provided with the changeover portion of taper type; Described block head is fixed on shoulder front end, and the front end of block head is provided with the guide head of taper type, it is characterized in that: block head and shoulder joint be provided with radially cave in one enclose draw-in groove; Flexible seal ring is provided with in described draw-in groove.
Further described seal ring is the ring structure of " O " type.
Further described seal ring is socketed in draw-in groove.
The internal diameter of further described seal ring is less than the external diameter of draw-in groove, and the external diameter of seal ring is greater than the external diameter of block head.
The width of further described draw-in groove axis is greater than the width of seal ring.
Further described block head and guide head joint are provided with the first fillet of circular arc.
The end, two side of further described draw-in groove is provided with the second fillet and the 3rd fillet of circular arc.
Advantage of the present utility model has: 1, seal plug is in insertion with when exiting, and it is rounded contact that " O " RunddichtringO contacts with the hole of part, should not stave seal ring;
2, adopt the sealing of " O " RunddichtringO, seal ring is not by axial pressure, and only by radial pressure, seal ring is unsuitable damaged;
3, the diameter of section of draw-in groove width ratio " O " RunddichtringO of fixing " O " RunddichtringO is large, and during seal ring pressurized, seal ring Volume Changes has the space of distortion, and seal ring is unsuitable damaged.
Accompanying drawing explanation
Fig. 1: plan view of the present utility model;
Fig. 2: without the structural representation of seal ring lower bayonet slot;
Wherein: 1-shutoff bar; 2-shoulder; 3-block head; 4-changeover portion; 5-guide head; 6-draw-in groove; 7-seal ring; 8-the first fillet; 9-the second fillet; 10-the three fillet.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As Fig. 1 ~ 2, a kind of EP cylinder cap unidirectional valve opening special sealing ring formula integral sealing plug, comprises coaxial the shutoff bar 1, shoulder 2 and the block head 3 that arrange.Seal plug enters in unidirectional valve opening according to the order of block head 3, shoulder 2 and shutoff bar 1 successively, wherein in order to ensure in shutoff process, the sidewall of rod member and one-way valve does not scratch, the front end of block head 3 is provided with the guide head 5 of taper type, guide head 5 is provided with the first fillet 8 of circular arc with the joint of block head 3, as shown in Figure 2, the first fillet 8 scratches to prevent from causing during subsequent installation miscellaneous part.
Shoulder 2 is fixed on shutoff bar 1 end, and shoulder 2 diameter is less than shutoff bar 1 diameter, and both joints are provided with the changeover portion 4 of taper type.
Block head 3 is fixed on shoulder 2 front end, block head 3 and shoulder 2 joint be provided with radially cave in one enclose draw-in groove 6, what be provided with " O " type in draw-in groove 6 has flexible seal ring 7, seal ring 7 can use flexible rubber material to be made, seal ring 7 is socketed in draw-in groove 6, the internal diameter of seal ring 7 is less than the external diameter of draw-in groove 6, the external diameter of seal ring 7 is greater than the external diameter of block head 3, such setting is in order to seal ring 7 can be fastened on draw-in groove 6 securely, in addition one end fit unidirectional valve opening inwall formed Hermetical connecting structure.
When seal ring 7 is inserted in unidirectional valve opening, can be subject to one-way valve aperture to extruding force, seal ring 7 can produce deformation, therefore, by the width being greater than seal ring 7 of the width design of draw-in groove 6, like this, after seal ring 7 produces deformation, draw-in groove 6 has the volume holding seal ring 7 deformation, prevents seal ring 7 from receiving axial extruding and breaking.
Wherein, the end, upper end, two side of draw-in groove 6 is provided with the second fillet 9 and the 3rd fillet 10 of circular arc, prevents seal ring 7 from use easily contacting with sharp comer and producing damaged phenomenon.
During use, be socketed in by seal ring 7 in draw-in groove 6, be inserted into by seal plug in unidirectional valve opening, the extruding that seal ring 7 receives unidirectional valve opening produces deformation, fits tightly in hole, forms Hermetical connecting structure.
The utility model structure is simple, coordinates by seal ring and draw-in groove the problem solving seal ring Long-Time Service and easily destroy, and easy to process, has great promotional value.
Claims (7)
1. an EP cylinder cap unidirectional valve opening special sealing ring formula integral sealing plug, comprises coaxial the shutoff bar (1), shoulder (2) and the block head (3) that arrange; Described shoulder (2) is fixed on shutoff bar (1) end, and shoulder (2) diameter is less than shutoff bar (1) diameter, and both joints are provided with the changeover portion (4) of taper type; Described block head (3) is fixed on shoulder (2) front end, the front end of block head (3) is provided with the guide head (5) of taper type, it is characterized in that: block head (3) and shoulder (2) joint be provided with radially cave in one enclose draw-in groove (6); Flexible seal ring (7) is provided with in described draw-in groove (6).
2. a kind of EP cylinder cap according to claim 1 unidirectional valve opening special sealing ring formula integral sealing plug, is characterized in that: described seal ring (7) is the ring structure of " O " type.
3. a kind of EP cylinder cap according to claim 2 unidirectional valve opening special sealing ring formula integral sealing plug, is characterized in that: described seal ring (7) is socketed in draw-in groove (6).
4. a kind of EP cylinder cap according to claim 3 unidirectional valve opening special sealing ring formula integral sealing plug, it is characterized in that: the internal diameter of described seal ring (7) is less than the external diameter of draw-in groove (6), and the external diameter of seal ring (7) is greater than the external diameter of block head (3).
5. a kind of EP cylinder cap as claimed in claim 1 unidirectional valve opening special sealing ring formula integral sealing plug, is characterized in that: the width of described draw-in groove (6) axis is greater than the width of seal ring (7).
6. a kind of EP cylinder cap as claimed in claim 1 unidirectional valve opening special sealing ring formula integral sealing plug, is characterized in that: described block head (3) and guide head (5) joint are provided with first fillet (8) of circular arc.
7. a kind of EP cylinder cap as claimed in claim 1 unidirectional valve opening special sealing ring formula integral sealing plug, is characterized in that: the end, two side of described draw-in groove (6) is provided with the second fillet (9) and the 3rd fillet (10) of circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520026133.6U CN204403364U (en) | 2015-01-14 | 2015-01-14 | A kind of EP cylinder cap unidirectional valve opening special sealing ring formula integral sealing plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520026133.6U CN204403364U (en) | 2015-01-14 | 2015-01-14 | A kind of EP cylinder cap unidirectional valve opening special sealing ring formula integral sealing plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204403364U true CN204403364U (en) | 2015-06-17 |
Family
ID=53427224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520026133.6U Expired - Fee Related CN204403364U (en) | 2015-01-14 | 2015-01-14 | A kind of EP cylinder cap unidirectional valve opening special sealing ring formula integral sealing plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204403364U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907538A (en) * | 2017-04-06 | 2017-06-30 | 珠海格力电器股份有限公司 | Pipe joint device and automobile air conditioner |
-
2015
- 2015-01-14 CN CN201520026133.6U patent/CN204403364U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907538A (en) * | 2017-04-06 | 2017-06-30 | 珠海格力电器股份有限公司 | Pipe joint device and automobile air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20150617 Termination date: 20200114 |