CN210034402U - Sealing ring for hole - Google Patents
Sealing ring for hole Download PDFInfo
- Publication number
- CN210034402U CN210034402U CN201920326375.5U CN201920326375U CN210034402U CN 210034402 U CN210034402 U CN 210034402U CN 201920326375 U CN201920326375 U CN 201920326375U CN 210034402 U CN210034402 U CN 210034402U
- Authority
- CN
- China
- Prior art keywords
- ring
- opening
- square ring
- square
- wall
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 44
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 229920000459 Nitrile rubber Polymers 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920002449 FKM Polymers 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 16
- 239000013013 elastic material Substances 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229920001973 fluoroelastomer Polymers 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The utility model discloses a hole sealing ring, an O-shaped ring sheathed on a groove of a piston rod and a square ring sheathed outside the O-shaped ring, wherein both ends of the outer wall of the square ring are provided with chamfers, the square ring is made of wear-resistant material, and the O-shaped ring is made of elastic material; the square ring is provided with an opening penetrating through the inner wall and the outer wall of the square ring, the opening comprises a first opening part arranged along the circumferential direction of the square ring in a natural state, a second opening part extending from one end point of one end of the first opening part along one end of the axis of the square ring, and a third opening part extending from the other end point of the other end of the first opening part along the other end of the axis of the square ring, the first opening part, the second opening part and the third opening part all penetrate through the inner wall and the outer wall of the square ring, and the first opening part of the opening is arranged in a closed state when the square ring is sleeved on the O-shaped ring. The technical scheme of the utility model, it is simple to have the installation, does not have the installation loss, and the advantage that installation effectiveness improves, simultaneously, the leakproofness of sealing washer also obtains the guarantee.
Description
Technical Field
The utility model relates to a sealing member technical field, specificly a sealing washer is used to hole.
Background
With the continuous development of domestic economy, the industrial automation degree of numerous domestic industrial and mining enterprises is further improved, the sealing product plays an important role in industrial automation, and the quality of the sealing product plays a key role in the aspect of industrial automation fluid power transmission. In particular, in the case of the heavy and large apparatuses of the country concerned with the international citizens, the stability of the properties of the sealing products, the reliability of the quality and the resistance to various fluid media are very important. Generally, in major domestic equipment, sealing elements imported from foreign developed countries are generally adopted, the sealing elements are expensive and long in arrival period, great loss is caused to enterprises during maintenance and modification of the equipment, the environment is seriously polluted, the natural ecology is damaged, and the problem cannot be solved sometimes by imported products.
At present, the square sealing ring produced in China comprises a square ring and an O-shaped ring which are used in a combined mode, and the square sealing ring is simple in structure, good in sealing effect and low in cost. However, the square sealing ring generally has the problem of high installation difficulty, and due to the fact that the installation difficulty is high, the phenomenon that the sealing ring is not installed in place can occur, the sealing effect of the sealing ring can be influenced, and cylinder body galling can be caused in serious cases. Generally, in order to ensure that the installation is in place, the product needs to be installed in a stretching mode, and the risk of damage to the installation exists.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the embodiment of the utility model provides a sealing washer is used to hole, and it is used for solving at least one in the above-mentioned problem.
The embodiment of the application discloses: a hole sealing ring is sleeved on a piston rod and comprises an open square ring and an O-shaped ring, the O-shaped ring is sleeved on a groove of the piston rod and sleeved outside the O-shaped ring, the square ring and the O-shaped ring are coaxially arranged, chamfers are arranged at two ends of the outer wall of the square ring, the square ring is made of wear-resistant materials, and the O-shaped ring is made of elastic materials; the square ring is provided with an opening penetrating through the inner wall and the outer wall of the square ring, the opening comprises an edge in a natural state, a first opening portion is arranged in the circumferential direction of the square ring, an end point of one end of the first opening portion is arranged along a second opening portion extending from one end of the axis of the square ring, an end point of the other end of the first opening portion is arranged along a third opening portion extending from the other end of the axis of the square ring, the first opening portion, the second opening portion and the third opening portion are all arranged to penetrate through the inner wall and the outer wall of the square ring, and the first opening portion of the opening is arranged in a closed state when the square ring is arranged on the O-shaped ring.
Specifically, the first opening is perpendicular to the axis of the square ring.
Specifically, the second opening is parallel to the axis of the square ring.
Specifically, the third opening is parallel to the axis of the square ring.
Specifically, the length of the first opening is larger than the difference between the diameters of the inner wall and the outer wall of the square ring.
Specifically, the square ring is made of polytetrafluoroethylene.
Specifically, the O-shaped ring is made of nitrile rubber or fluororubber.
The utility model has the advantages as follows:
adopt above-mentioned structure, this embodiment the sealing washer for hole when the installation, earlier locate the ditch inslot of sealing washer with O type circle cover, because O type circle adopts elastic material to make, itself has great elasticity, consequently, in the installation to satisfy installation condition's appropriate tensile, can not cause the damage to O type circle. After the O-shaped ring is installed, the square ring is sleeved on the O-shaped ring, the square ring can be installed easily without being stretched or auxiliary tools due to the opening in the square ring, and therefore the square ring is not prone to being damaged. The opening on the square ring has the function of self-limiting in the axial direction, so that when the sealing ring is subjected to axial pressure, two ends of the opening of the square ring can still be tightly attached, and the phenomenon that the sealing performance of the sealing ring is affected due to the fact that the two ends of the opening are separated can be avoided. The sealing ring in the embodiment is basically consistent with the sealing ring adopting the closed (non-opening) square ring in sealing performance shown by a test result through a bench test, and the installation efficiency of the sealing ring is improved by 50% compared with that of the existing product, and the damage rate is zero.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the square ring in the embodiment of the present invention;
fig. 2 is a schematic structural view of the sealing ring for hole in the embodiment of the present invention.
Reference numerals of the above figures: 1-square ring, 11-inner wall, 12-outer wall, 121-chamfer, 13-opening, 131-first opening, 132-second opening, 133-third opening, 2-O-ring, 3-piston rod, 31-groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 2, in the embodiment of the present invention, the hole sealing ring is sleeved on the piston rod 3, and is specifically disposed in the groove 31 of the piston rod 3. The sealing ring for the hole comprises an open square ring 1 and an O-shaped ring 2, wherein the square ring 1 and the O-shaped ring 2 are coaxially arranged. The square ring 1 comprises an inner wall 11 and an outer wall 12. Both ends of the outer wall of the square ring 1 are provided with chamfers 121, the square ring 1 is made of wear-resistant materials, and the O-shaped ring is made of elastic materials. The square ring 1 has an opening 13 penetrating through an inner wall 11 and an outer wall 12 of the square ring 1, and the opening 13 naturally includes a first opening 131 provided along a circumferential direction of the square ring 1, a second opening 132 extending from an end point of one end of the first opening 131 along one end of an axis of the square ring 1, and a third opening 133 extending from an end point of the other end of the first opening 131 along the other end of the square ring 1. The first, second, and third openings 131, 132, and 133 penetrate the inner wall 11 and the outer wall 12 of the square ring 1. When the square ring 1 is sleeved on the O-ring 2, the first opening 131 of the opening 13 is always in a closed state, in other words, both sides of the first opening 131 are always in an abutting state when working, so that the effectiveness of the sealing performance is ensured. The first opening 131 is provided only substantially in the circumferential direction of the square ring 1, and is not limited to being perpendicular to the axial direction of the square ring 1, and the second opening 132 and the third opening 133 also extend substantially in the axial direction of the square ring 1, and are not limited to being parallel to the axial direction of the square ring 1. The second and third openings 132 and 133 are used to restrict the movement of both sides of the first opening 131 in the axial direction of the square ring 1, and to keep both sides of the first opening 131 in contact with each other.
Adopt above-mentioned structure, this embodiment the sealing washer for hole when the installation, earlier locate O type circle 2 cover in the slot 31 of sealing washer 3, because O type circle 2 adopts elastic material to make, itself has great elasticity, consequently, in the installation, in order to satisfy installation condition's appropriate tensile, can not cause the damage to O type circle 2. After the O-shaped ring 2 is installed, the square ring 1 is sleeved on the O-shaped ring 2, and the square ring 1 can be installed easily without being stretched or auxiliary tools due to the opening 13 in the square ring 1, so that the square ring 1 is not easy to damage. The opening 13 on the square ring 1 has the function of self-limiting in the axial direction, so when the sealing ring receives axial pressure, the two ends of the opening 13 of the square ring 1 can still be tightly attached, and the phenomenon that the two ends of the opening 13 are separated to cause the sealing performance of the sealing ring to be influenced can not occur. The sealing ring in the embodiment is basically consistent with the sealing ring adopting the closed (non-opening) square ring in sealing performance shown by a test result through a bench test, and the installation efficiency of the sealing ring is improved by 50% compared with that of the existing product, and the damage rate is zero.
Specifically, referring to fig. 1 with emphasis on the description, the first opening 131 of the square ring 1 according to the present embodiment is perpendicular to the axis of the square ring 1, and the second opening 132 and the third opening 133 are parallel to the axis of the square ring 1. Further, the length of the first opening 131 is greater than the difference between the diameters of the inner wall 11 and the outer wall 12 of the square ring 1, so that the opening amount of the square ring 1 in the groove 31 can be smaller than the length of the first opening 131, that is, the distance between the second opening 132 and the third opening 133 is always smaller than the length of the first opening 131, and it is ensured that both sides of the first opening 131 are always in contact with each other. In other words, in the present embodiment, the opening 13 is substantially Z-shaped. When the square ring 1 is subjected to axial pressure during operation, in an ideal state, both sides of the first opening 131, the second opening 132 and the third opening 133 are abutted against each other, and at this time, the square ring 1 of the present embodiment is substantially the same as a closed square ring in the prior art, and a liquid medium leakage phenomenon does not occur; in some cases, both sides of the second opening 132 and the third opening 133 may not be completely in contact with each other, but in any case, both sides of the first opening 131 are always in contact with each other (the installation space of the seal ring determines that both sides of the second opening 132 and the third opening 133 of the square ring 1 cannot be separated by a large distance), and therefore, the leakage of the medium cannot occur, that is, the sealing performance of the square ring 1 is ensured.
Specifically, the square ring 1 is made of polytetrafluoroethylene, and has good wear resistance. The O-shaped ring 2 is made of nitrile rubber or fluororubber and has excellent elasticity, so that the O-shaped ring 2 can elastically compensate abrasion of the square ring 1.
The present invention has been explained by using specific embodiments, and the explanation of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (7)
1. A hole sealing ring is sleeved on a piston rod and is characterized by comprising an open square ring and an O-shaped ring, wherein the O-shaped ring is sleeved on a groove of the piston rod and sleeved outside the O-shaped ring; the square ring is provided with an opening penetrating through the inner wall and the outer wall of the square ring, the opening comprises an edge in a natural state, a first opening portion is arranged in the circumferential direction of the square ring, an end point of one end of the first opening portion is arranged along a second opening portion extending from one end of the axis of the square ring, an end point of the other end of the first opening portion is arranged along a third opening portion extending from the other end of the axis of the square ring, the first opening portion, the second opening portion and the third opening portion are all arranged to penetrate through the inner wall and the outer wall of the square ring, and the first opening portion of the opening is arranged in a closed state when the square ring is arranged on the O-shaped ring.
2. The bore seal ring of claim 1, wherein the first opening is perpendicular to an axis of the square ring.
3. The bore seal ring of claim 1, wherein the second opening is parallel to the axis of the square ring.
4. The bore seal ring of claim 1, wherein the third opening is parallel to an axis of the square ring.
5. The bore seal ring of claim 1, wherein the length of the first opening is greater than the difference between the diameters of the inner and outer walls of the square ring.
6. The bore seal ring of claim 1, wherein said square ring is made of polytetrafluoroethylene.
7. The bore seal according to claim 1, wherein said O-ring is made of nitrile rubber or viton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920326375.5U CN210034402U (en) | 2019-03-14 | 2019-03-14 | Sealing ring for hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920326375.5U CN210034402U (en) | 2019-03-14 | 2019-03-14 | Sealing ring for hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210034402U true CN210034402U (en) | 2020-02-07 |
Family
ID=69355048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920326375.5U Expired - Fee Related CN210034402U (en) | 2019-03-14 | 2019-03-14 | Sealing ring for hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210034402U (en) |
-
2019
- 2019-03-14 CN CN201920326375.5U patent/CN210034402U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |