CN211738008U - Hydraulic conical surface metal sealing process plug - Google Patents
Hydraulic conical surface metal sealing process plug Download PDFInfo
- Publication number
- CN211738008U CN211738008U CN201922359318.XU CN201922359318U CN211738008U CN 211738008 U CN211738008 U CN 211738008U CN 201922359318 U CN201922359318 U CN 201922359318U CN 211738008 U CN211738008 U CN 211738008U
- Authority
- CN
- China
- Prior art keywords
- plug
- conical surface
- hole
- hydraulic
- diameter
- 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.)
- Active
Links
Images
Landscapes
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model discloses a hydraulic pressure conical surface metal seal technology is stifled, include: the plug is provided with an external thread on the outer wall, the upper end of the plug is a plug head, and the plug external thread is in threaded connection with the internal thread in the base body hole; the outer wall of the plug is provided with a plug outer conical surface, the upper end of the plug outer conical surface is a large-diameter end, the lower end of the plug outer conical surface is a small-diameter end, and the outer diameter of the small-diameter end of the plug outer conical surface is larger than the inner diameter of the base hole. The inner wall of the upper end opening of the base body hole is provided with a conical surface in the base body hole, the taper of the outer conical surface of the plug is smaller than that of the conical surface in the base body hole, namely the small-diameter end of the outer conical surface of the plug is firstly in contact with the conical surface in the base body hole to be plastically deformed and sealed. The utility model discloses a conical surface metal seal stopper blocks up structure can realize bigger moment of torsion in finite space, can effectively solve the stifled screw thread of hydraulic pressure high pressure technology not hard up to and high temperature, high-pressure impact hydraulic oil seepage problem.
Description
Technical Field
The utility model belongs to the technical field of mechanical hydraulic pressure technique and specifically relates to a hydraulic pressure conical surface metal seal technology is stifled.
Background
Due to the control function requirements of a plurality of complex hydraulic components such as a hydraulic axial plunger pump and the like, a plurality of machining oil passage holes exist in a shell, the oil pressure can reach as high as 40Mpa, and the aperture of the starting end of each machining oil passage hole cannot be too small due to the limitation of a cutter; in order to better reduce the cross-sectional area of the process blockage stress, the cross-sectional area can not be too large. The aperture of the starting end of the processed oil passage hole can be generally phi 4-phi 6, and the process plug is convenient to use for sealing. Whether the process plug design reasonably and directly influences sealing is determined, and the sealing performance is an important factor related to whether the hydraulic component is reliable or not. The prior art plug generally uses a taper thread plug which is coated with thread sealant in advance, tightened by torque and cured and then sealed. The thread sealant has the following problems that (1) the thread sealant is easy to loosen under high-temperature and high-pressure impact and leaks oil (2) and can be used in a test after being cured. (3) The fastening end only can use the hexagon socket in the space is limited, and the technology is stifled easily to become flexible in order to prevent that the hexagon socket warp the moment of torsion limited.
Application No.: 201810424545.3, filing date: 2018-05-07 discloses a high-pressure sealing plug which comprises an outer end face and an inner contact face, wherein a sealing groove is formed in the lower portion, close to the inner contact face, of a plug body, a sealing ring is arranged in the sealing groove, a first groove is formed in the center of the plug body, and a first sealing auxiliary block is arranged in the first groove. The invention provides a high-pressure sealing plug which can fasten a sealing ring and is not easy to position, aiming at the problem that the sealing ring arranged on the sealing plug is easy to displace or slide under the existing high-pressure environment, so that the high-pressure plug is invalid. Because end cap body central point puts and is equipped with first recess, is equipped with first sealed auxiliary block in the first recess, first sealed auxiliary block can be in the end cap body installation back of going into hydraulic valve piece, through the extrusion end cap body, realizes the expansion to the end cap body, increases the pressure between end cap body and hydraulic valve piece pipe wall, plays the fixed action to the end cap body.
Application No.: 201710498174.9, filing date: 2017-06-27 discloses a hydraulic plug, and belongs to the technical field of hydraulic sealing. Comprises a head and a rod body; the peripheral surface of the rod body is provided with threads; the intersection of the head and the rod body is provided with a sealing ring and a mounting groove for mounting the sealing ring around the rod body, the sealing ring can slide along the rod body, the bottom of the mounting groove is arc-shaped, the inner end face of the sealing ring is arc-shaped matched with the mounting groove in a circular arc shape, and the diameter of the arc-shaped end face of the sealing ring is smaller than that of the arc-shaped end face of the bottom of the mounting groove. The sealing ring can slide along the rod body without tight fit, and is convenient to replace; the arc wall can be compressed tightly the postexpansion when hydraulic pressure end cap and pipeline mouth are mated, plugs up the sealing washer simultaneously and by the gap between the pipeline mouth terminal surface of stifled and the gap between sealing washer and the mounting groove, and the arc wall middle part is stayed spaciously, can not cause wearing and tearing with the long-time friction of pipeline mouth terminal surface, has prolonged life greatly, and the compression chamber then provides sufficient compression space for the arc wall, has more the practicality.
Application No.: 201620782248.2 application date: 2016-07-25 discloses a sealed end cap, and its technical scheme main points are including the end cap body, the system has axial extension and link up the through-hole of terminal surface from top to bottom on the end cap body, end cap body one end is equipped with the portion of screwing, and the other end is equipped with the toper sealing, it is equipped with threaded connection portion to screw between the toper sealing, the system has axial extension and link up the deformation groove of lateral wall on the toper sealing. The portion of screwing of centre gripping, when in the mounting hole with threaded connection portion screw in, the toper sealing can be through the deformation groove at the in-process of deepening, and the shrink produces elastic deformation gradually to the lateral wall that makes the toper sealing is contradicted and is laminated the mounting hole inner wall, thereby effectively improves sealed effect. And the conical sealing part can generate elastic deformation in a larger size range through the deformation groove, so that the size range of the adaptive mounting hole is larger, the assembly requirement of the conical surface is effectively reduced, the processing precision of the sealing plug is reduced, and the processing cost is favorably reduced.
Technical scheme and the technical problem that will solve and the beneficial effect who produces of above disclosure technique all with the utility model discloses inequality, perhaps technical field or application scenario are different, are directed to the utility model discloses more technical problem and the beneficial effect that will solve, above open technical document all do not have the technological inspiration.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hydraulic pressure conical surface metal seal technology is stifled, adopts conical surface metal seal to fill up stifled structure, can realize bigger moment of torsion in finite space, can effectively solve the stifled screw thread of hydraulic pressure high pressure technology not hard up to and high temperature, high-pressure impact hydraulic oil seepage problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a hydraulic conical surface metal sealing process plug comprises:
the plug is provided with an external thread on the outer wall, the upper end of the plug is a plug head, and the plug external thread is in threaded connection with the internal thread in the base body hole;
the outer wall of the plug is provided with a plug outer conical surface, the upper end of the plug outer conical surface is a large-diameter end, the lower end of the plug outer conical surface is a small-diameter end, and the outer diameter of the small-diameter end of the plug outer conical surface is larger than the inner diameter of the base hole.
Furthermore, the inner wall of the upper end opening of the base body hole is provided with a conical surface in the base body hole, the taper of the outer conical surface of the plug is smaller than or equal to that of the conical surface in the base body hole, namely, the small-diameter end of the outer conical surface of the plug is firstly in contact with the conical surface in the base body hole for plastic deformation sealing.
Furthermore, the plug is provided with a radial inward-concave abdicating ring groove between the upper end of the external thread of the plug and the small-diameter end of the external conical surface of the plug, and abdicating the conical angle at the lower end of the conical surface in the base body hole.
Further, the external thread of the plug is a straight thread.
Further, the external thread of the plug adopts a nonstandard fine thread M7 multiplied by 0.75.
Furthermore, the upper end face of the plug is provided with a flower-shaped hole.
Compared with the prior art, the utility model following beneficial effect has:
the utility model discloses can impact 300 ten thousand times in succession under the oil pressure 40Mpa, the 80 ℃ operating mode of oil temperature and do not leak, not become flexible. The conical surface metal sealing mode is adopted.
The process plug is made of high-strength alloy steel materials, the fastening threads are non-standard fine threads M7 multiplied by 0.75, and the process plug can effectively prevent looseness while ensuring strength.
The shape of the turning tool hole of the process plug part is a specific flower-shaped hole, and compared with an inner hexagonal hole, the turning tool hole can play larger torque in the same space, so that the size of the process plug can be reduced.
The proper torque is determined by tests, the plug conical angle part is embedded into the conical surface of the base hole by the wedging effect, the plug conical angle part and the base hole are subjected to plastic deformation to form a complete continuous sealing belt, and the sealing performance is very reliable.
The straight thread process plug also becomes advantageous in terms of quality management because it stabilizes the fastening process, as compared to the widely used taper thread process plug.
Drawings
FIG. 1 is a schematic structural view of a hydraulic conical metal seal process plug of the present invention;
FIG. 2 is a top view of FIG. 1;
fig. 3 is an assembly application state diagram of the present invention.
In the figure: plugging 1; a base hole 2; a flower-shaped hole 3; an external thread 4; a yielding ring groove 5; an outer conical surface 6 of the plug; the base bore has a conical surface 7.
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 3, the present invention provides a technical solution:
a hydraulic conical surface metal sealing process plug comprises:
the plug 1, the external wall of the plug is provided with an external thread 4, the upper end of the plug is a plug, and the external thread of the plug is in threaded connection with the internal thread in the base body hole 2;
the outer wall of the plug is provided with a plug outer conical surface 6, the upper end of the plug outer conical surface is a large-diameter end, the lower end of the plug outer conical surface is a small-diameter end, and the outer diameter of the small-diameter end of the plug outer conical surface is larger than the inner diameter of the base hole.
Furthermore, the inner wall of the upper end opening of the base body hole is provided with a conical surface 7 in the base body hole, the taper of the outer conical surface of the plug is smaller than or equal to that of the conical surface in the base body hole, namely, the small-diameter end of the outer conical surface of the plug is firstly in contact with the conical surface in the base body hole for plastic deformation sealing.
Furthermore, the plug is provided with a radial concave abdicating ring groove 5 between the upper end of the external thread of the plug and the small diameter end of the external conical surface of the plug, and an abdicating conical angle at the lower end of the conical surface in the base body hole.
Further, the external thread of the plug is a straight thread.
Further, the external thread of the plug adopts a nonstandard fine thread M7 multiplied by 0.75.
Furthermore, the upper end face of the plug is provided with a flower-shaped hole 3. The flower-shaped hole can be designed into any required shape according to the requirement. Referred to as specific flower-shaped apertures, as shown in fig. 2, one of which is shown, the others, will be clear to those skilled in the art.
1. The process plug is made of high-strength alloy steel materials, the fastening threads are non-standard fine threads M7 multiplied by 0.75, and the process plug can effectively prevent looseness while ensuring strength.
2. The shape of the turning tool hole of the process plug part is a specific flower-shaped hole, and compared with an inner hexagonal hole, the turning tool hole can play larger torque in the same space, so that the size of the process plug can be reduced.
3. The proper torque is determined by tests, the plug conical angle part is embedded into the conical surface in the base body hole through the wedging effect, the plug conical angle part and the base body hole are subjected to plastic deformation to form a complete continuous sealing belt, and the sealing performance is very reliable.
4. The straight thread process plug also becomes advantageous in terms of quality management because it stabilizes the fastening process, as compared to the widely used taper thread process plug.
All parts and parts which are not discussed in the present application and the connection mode of all parts and parts in the present application belong to the known technology in the technical field, and are not described again. Such as welding, threaded connections, etc.
In the present application, the term "plurality" means two or more unless expressly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A hydraulic conical surface metal sealing process plug comprises:
the plug is provided with an external thread on the outer wall, the upper end of the plug is a plug head, and the plug external thread is in threaded connection with the internal thread in the base body hole;
the plug is characterized in that the outer wall of the plug is provided with a plug outer conical surface, the upper end of the plug outer conical surface is a large-diameter end, the lower end of the plug outer conical surface is a small-diameter end, and the outer diameter of the small-diameter end of the plug outer conical surface is larger than the inner diameter of the base body hole.
2. The hydraulic conical metal seal process plug according to claim 1, wherein the inner wall of the upper end opening of the base hole is provided with a conical surface in the base hole, and the taper of the outer conical surface of the plug is smaller than or equal to that of the conical surface in the base hole, i.e. the small diameter end of the outer conical surface of the plug is firstly in contact with the conical surface in the base hole for plastic deformation sealing.
3. The hydraulic conical metal sealing process plug according to claim 1 or 2, wherein the plug is provided with a radially inward-recessed abdicating ring groove between the upper end of the external thread of the plug and the small-diameter end of the external conical surface of the plug, and abdicating the conical angle at the lower end of the conical surface in the base hole.
4. The hydraulic conical metal seal process plug according to claim 3, wherein the external thread of the plug is a straight thread.
5. The hydraulic cone metal seal process plug of claim 4, wherein the external thread of the plug is a non-standard fine thread M7 x 0.75.
6. The hydraulic conical metal seal process plug according to claim 4 or 5, wherein a flower-shaped hole is formed in the upper end face of the plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922359318.XU CN211738008U (en) | 2019-12-24 | 2019-12-24 | Hydraulic conical surface metal sealing process plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922359318.XU CN211738008U (en) | 2019-12-24 | 2019-12-24 | Hydraulic conical surface metal sealing process plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211738008U true CN211738008U (en) | 2020-10-23 |
Family
ID=72872116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922359318.XU Active CN211738008U (en) | 2019-12-24 | 2019-12-24 | Hydraulic conical surface metal sealing process plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211738008U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282697A (en) * | 2020-11-19 | 2021-01-29 | 百勤能源科技（惠州）有限公司 | Downhole safety valve |
-
2019
- 2019-12-24 CN CN201922359318.XU patent/CN211738008U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282697A (en) * | 2020-11-19 | 2021-01-29 | 百勤能源科技（惠州）有限公司 | Downhole safety valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3584900A (en) | High-pressure sealing and gripping device | |
| CN103604012A (en) | Connecting nut dedicated to split-type air conditioner refrigerant connecting pipeline | |
| CN211738008U (en) | Hydraulic conical surface metal sealing process plug | |
| CN109026445B (en) | Multi-nozzle solid attitude control engine blanking cover structure | |
| CN109386674B (en) | Male joint of pipe joint and pipe joint | |
| CN108869514B (en) | Self-locking nut and mounting method thereof | |
| US3642294A (en) | Washer | |
| CN103322211A (en) | Metal sealed butterfly valve without pin connection | |
| CN110939737A (en) | Expanded graphite sealing device with anti-shearing function | |
| CN214741642U (en) | Reverse integrated adapter connector for engine oil cooler | |
| CN106536915B (en) | High-voltage connection device | |
| CN209800929U (en) | Flexible self-sealing floating interface device | |
| CN211059536U (en) | Spherical pipe joint of air conditioner | |
| KR102261391B1 (en) | Seal structure and sealing method and coupling having this seal structure | |
| CN219734964U (en) | Sealing structure for grease gun | |
| CN201126055Y (en) | Stop valve and pipe connection component connecting stop valve and pipeline | |
| RU2386888C1 (en) | Pipeline joint | |
| CN220037188U (en) | Internal locking type expansion all-aluminum rivet plug | |
| CN219345638U (en) | Valve assembly with liquid viewing mirror | |
| CN214950822U (en) | Locking nut connecting pipe structure for heat exchanger | |
| CN214197646U (en) | High-pressure joint for fuel cell automobile | |
| GB2583345A (en) | Common rail assembly | |
| CN203009901U (en) | Valve seat of eccentric semi-ball valve | |
| CN211116219U (en) | Expansion joint for exhaust pipe of diesel engine | |
| CN211059110U (en) | Balance oil cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 276715, No. 112, Chang Linzhu West Avenue, Linshu County, Shandong, Linyi Patentee after: Shandong Zhongrun Hydraulic Machinery Co.,Ltd. Patentee after: SHANDONG CHANGLIN MACHINERY GROUP Co.,Ltd. Address before: 276715, No. 112, Chang Linzhu West Avenue, Linshu County, Shandong, Linyi Patentee before: SHANDONG CCHC HYDRAULICS Co.,Ltd. Patentee before: SHANDONG CHANGLIN MACHINERY GROUP Co.,Ltd. |