CN113970067A - Sealing connection structure - Google Patents
Sealing connection structure Download PDFInfo
- Publication number
- CN113970067A CN113970067A CN202010718155.4A CN202010718155A CN113970067A CN 113970067 A CN113970067 A CN 113970067A CN 202010718155 A CN202010718155 A CN 202010718155A CN 113970067 A CN113970067 A CN 113970067A
- Authority
- CN
- China
- Prior art keywords
- mounting hole
- sealing
- receiving groove
- seal
- peripheral 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/06—Closures, e.g. cap, breakable member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/062—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces characterised by the geometry of the seat
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a sealing connection structure, a valve assembly and a vehicle, wherein the sealing connection structure comprises: a first body having a mounting hole; the second main part and the sealing piece, the second main part includes first part and second part, the first part stretches into in the mounting hole and links to each other with the internal perisporium of mounting hole, the second part links to each other with the one end of keeping away from the mounting hole of first part, the sealing piece overcoat is on first part and with the internal perisporium butt of mounting hole, be formed with the step portion on the periphery wall of second part, the step portion extends annularly along the circumferential direction of second main part, the step portion has crossing first step face and second step face, first step face is located the mounting hole, the second step face is located outside the mounting hole and with the surface butt of first main part. According to the sealing connection structure, the step part is arranged on the second part, so that the limiting effect can be achieved, the sealing element can be effectively prevented from being extruded under the action of high-pressure media, and the sealing reliability is improved.
Description
Technical Field
The invention relates to the field of sealing, in particular to a sealing connection structure.
Background
In the related art, the sealing connection structure on some components (such as a manifold, a valve, a pressure regulator, a pressure sensor, a fuel cell, etc.) of the hydrogen storage system or other high-pressure gas storage systems is complex in form, inconvenient to produce and assemble, and undesirable in sealing effect, which affects safety.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention aims to provide a sealing connection structure which is simple in structural form, convenient to process and assemble and reliable in sealing.
According to the sealing connection structure of the embodiment of the invention, the sealing connection structure comprises: a first body having a mounting hole; second main part and sealing member, the second main part includes first part and second part, the first part stretches into in the mounting hole with the internal perisporium of mounting hole links to each other, the second part with keeping away from of first part the one end of mounting hole links to each other, the sealing member overcoat in on the first part and with the internal perisporium butt of mounting hole, be formed with step portion on the peripheral wall of second part, the step portion is followed the circumferential direction of second main part extends the circularity, the step portion has crossing first step face and second step face, first step face is located in the mounting hole, the second step face be located outside the mounting hole and with the surface butt of first main part.
According to the sealing connection structure provided by the embodiment of the invention, the step part is formed on the outer peripheral wall of the second part, the first step surface of the step part is positioned in the mounting hole, and the second step surface of the step part is positioned outside the mounting hole and abutted against the outer surface of the first main body, so that on one hand, a certain guiding effect can be achieved in the assembling process of the first main body and the second main body, the situation that the first step surface cannot extend into the mounting hole due to the fact that the first main body and the second main body are not assembled in place is avoided, on the other hand, a limiting effect can be achieved, the sealing element can be effectively prevented from being extruded under the action of a high-pressure medium in long-term use, the sealing reliability is improved, and after the second step surface is abutted against the outer surface of the first main body, a certain degree of sealing effect can be achieved, the whole form of the sealing connection structure is simple, and the processing and the assembling are convenient.
In some embodiments of the present invention, an inner peripheral wall of the mounting hole is provided with a first internal thread, and an outer peripheral wall of the first portion is provided with a first external thread, and the first internal thread is engaged with the first external thread.
In some embodiments of the present invention, a first receiving groove extending annularly in a circumferential direction of the first portion is provided on an outer circumferential wall of the first portion, the first receiving groove extends to an end of the first portion close to the second portion, the first receiving groove is located between the first external thread and the first step surface, and the sealing member is provided in the first receiving groove.
In some embodiments of the present invention, a groove surface of the first receiving groove near the first partial center axis is configured as a cylindrical surface or a tapered surface.
In some embodiments of the present invention, the inner peripheral wall of the mounting hole has an annular sealing surface located on a side of the first internal thread close to the stepped portion, the sealing surface is configured as a tapered surface and an inner diameter of the sealing surface gradually increases in a direction toward the stepped portion, and the seal member abuts against the sealing surface.
In some embodiments of the present invention, the inner peripheral wall of the mounting hole has an annular guide surface on a side of the sealing surface close to the step portion, the guide surface being opposed to the first step surface in a radial direction of the mounting hole.
In some embodiments of the invention, the first step surface is a clearance fit with the guide surface.
In some embodiments of the present invention, the first step surface is perpendicular to the second step surface.
In some embodiments of the present invention, the second portion includes a clamping portion connected to the first portion, and a connecting portion provided at an end of the clamping portion remote from the first portion, and the step portion is formed at an end of the clamping portion close to the first portion.
In some embodiments of the present invention, the outer circumferential wall of the connecting portion is provided with a second external thread.
In some embodiments of the present invention, a second receiving groove extending annularly in a circumferential direction of the second portion is provided on an outer circumferential wall of the connecting portion, and the second receiving groove is located between the second external thread and the clamping portion.
In some embodiments of the present invention, a third receiving groove extending annularly in a circumferential direction of the second portion is provided on an end surface of the connecting portion away from the clamping portion.
In some embodiments of the invention, the second body is provided with a flow hole extending in an axial direction of the second body.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a cross-sectional view of a first body and a second body coupled according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a first body according to an embodiment of the invention;
fig. 3 is a cross-sectional view of a second body according to an embodiment of the present invention.
Reference numerals:
a sealing connection structure 100;
a first body 1;
a mounting hole 11; a sealing surface 111; a guide surface 112;
a second body 2;
a first portion 21; the first receiving groove 211;
a second portion 22; a step portion 221; first step surface 2211; second step surface 2212; a clamping portion 222; a connecting portion 223; the second housing groove 2231; the third accommodation groove 2232;
a flow-through hole 23;
and a seal 3.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
The sealing connection structure 100 according to the embodiment of the present invention will be described below with reference to the accompanying drawings, and the sealing connection structure 100 may be applied to a hydraulic system or a pneumatic system where sealing is required to prevent a medium from leaking therefrom. Specifically, the sealing connection structure 100 can be applied to various locations requiring sealing connection in a hydrogen storage system or other high-pressure gas storage systems, such as a manifold, a valve, a pressure regulator, a pressure sensor, a fuel cell, and the like, to prevent gas leakage and improve safety.
As shown in fig. 1, a sealing connection structure 100 according to an embodiment of the present invention includes a first body 1, a second body 2, and a sealing member 3.
As shown in fig. 1 and 2, the first body 1 has a mounting hole 11, and the mounting hole 11 is provided to facilitate mounting between the second body 2 and the first body 1.
Specifically, for example, referring to fig. 2, the outer surface of the first body 1 is recessed inward to form the mounting hole 11, whereby the structural form is simple.
It should be noted that, the mounting hole 11 is not limited to a through hole or a blind hole, and may be selectively arranged according to actual situations. For example, when the mounting hole 11 is a through hole, the medium may flow directly into the mounting hole 11 in a specific application; for example, when the mounting hole 11 is a blind hole, the first body 1 may further include other communication holes communicating with the mounting hole 11, and the medium may flow into the mounting hole 11 through the communication holes in a specific application.
As shown in fig. 1 and 3, the second body 2 includes a first portion 21 and a second portion 22, the first portion 21 extends into the mounting hole 11 and is connected to the inner peripheral wall of the mounting hole 11, the second portion 22 is connected to an end (e.g., right end) of the first portion 21 away from the mounting hole 11, the seal member 3 is sleeved on the first portion 21 and is abutted against the inner peripheral wall of the mounting hole 11, that is, the seal member 3 is also located in the mounting hole 11, the seal member 3 is sleeved on the first portion 21 and the seal member 3 is respectively abutted against the outer peripheral wall of the first portion 21 and the inner peripheral wall of the mounting hole 11, so that the seal member 3 can perform a sealing function and prevent a medium from leaking between the outer peripheral wall of the first portion 21 and the inner peripheral wall of the mounting hole 11.
In practical applications, the sealing member 3 may be a sealing ring, such as an O-ring, so that the structure is simple and the production cost is low.
As shown in fig. 1 and 3, a step portion 221 is formed on the outer peripheral wall of the second portion 22, the step portion 221 extends annularly along the circumferential direction of the second body 2, the step portion 221 has a first step surface 2211 and a second step surface 2212 which intersect, the first step surface 2211 is located in the mounting hole 11, the second step surface 2212 is located outside the mounting hole 11 and is abutted to the outer surface of the first body 1, the step portion 221 is provided to play a certain guiding role in the assembling process of the first body 1 and the second body 2 on one hand, to avoid that the first step surface 2211 cannot extend into the mounting hole 11 due to the first body 1 and the second body 2 being not assembled in place on the other hand, and also to play a limiting role on the other hand, can effectively prevent the sealing element 3 from being extruded under the action of high-pressure medium in long-term use, the second stepped surface 2212 also has a certain sealing effect after abutting against the outer surface of the first body 1. The sealing connection structure 100 has a simple overall form, and is easy to manufacture and assemble.
It should be noted that the specific structural form of the first body 1 and the second body 2 is not limited, and the specific structural form can be selected and set according to the application. For example, in some embodiments, the first body 1 may be a pipeline, and the second body 2 may be a sensor or the like connected to the pipeline; in other embodiments, the first body 1 may be a valve body and the second body 2 may be a fitting connected to the valve body.
According to the sealing connection structure 100 of the embodiment of the invention, since the outer peripheral wall of the second part 22 is formed with the step portion 221, the first step surface 2211 of the step portion 221 is positioned in the mounting hole 11, and the second step surface 2212 of the step portion 221 is positioned outside the mounting hole 11 and is abutted against the outer surface of the first body 1, on one hand, a certain guiding function can be achieved in the assembling process of the first body 1 and the second body 2, so as to prevent the first step surface 2211 from extending into the mounting hole 11 due to the first body 1 and the second body 2 being not assembled, on the other hand, a limiting function can be achieved, so that the sealing element 3 can be effectively prevented from being extruded under the action of a high-pressure medium in long-term use, the sealing reliability is improved, and after the second step surface 2212 is abutted against the outer surface of the first body 1, a certain degree of sealing function can be achieved, and the overall form of the sealing connection structure 100 is simple, is convenient for processing and assembling.
In some embodiments of the present invention, as shown in fig. 1, the inner peripheral wall of the mounting hole 11 is provided with a first internal thread, and the outer peripheral wall of the first portion 21 is provided with a first external thread, and the first internal thread is matched with the first external thread, so that the structure form is simple, the connection strength of the threaded connection is high, the connection is reliable, and the disassembly and the assembly are convenient.
When the assembly is carried out, the first main body 1 and the second main body 2 are screwed down, so that the second step surface 2212 is tightly abutted to the outer surface of the first main body 1, the pre-tightening force of the first internal thread and the first external thread can be provided, and the tightness and the reliability of threaded connection can be improved.
Of course, the first body 1 and the second body 2 can be connected by other connection means besides the threaded connection, for example, the first body 1 and the second body 2 can be connected by a pin connection or a key connection.
In some embodiments of the present invention, as shown in fig. 1 and 3, a first receiving groove 211 extending annularly along a circumferential direction of the first portion 21 is provided on an outer circumferential wall of the first portion 21, the first receiving groove 211 extends to an end of the first portion 21 close to the second portion 22, the first receiving groove 211 is located between the first external thread and the first step surface 2211, the sealing element 3 is provided in the first receiving groove 211, the first receiving groove 211 is provided to facilitate installation of the sealing element 3, and the first receiving groove 211 itself can also play a certain limiting role on the sealing element 3 after the sealing element 3 is assembled in the first receiving groove 211, which is simple in structural form and convenient to implement.
Specifically, during assembly, the sealing element 3 is firstly sleeved in the first accommodating groove 211, then the first portion 21 is screwed into the mounting hole 11 and is in threaded fit with the mounting hole 11 until the sealing element 3 abuts against the inner peripheral wall of the mounting hole 11, meanwhile, the first step surface 2211 of the step portion 221 extends into the mounting hole 11, and the second step surface 2212 of the step portion 221 is located outside the mounting hole 11 and abuts against the outer surface of the first main body 1.
In some embodiments of the present invention, as shown in fig. 3, the groove surface of the first receiving groove 211 close to the central axis of the first part 21 is configured as a cylindrical surface or a tapered surface, so that the structural form is simple and easy to implement, and when the groove surface of the first receiving groove 211 close to the central axis of the first part 21 is a tapered surface, when the sealing member 3 is mounted in the first receiving groove 211 and abuts against the inner circumferential wall of the first mounting hole 11, a certain degree of compression deformation of the sealing member 3 may occur, thereby improving the sealing effect.
Alternatively, when the groove surface of the first receiving groove 211 close to the central axis of the first portion 21 is a tapered surface, the inner diameter thereof may gradually increase or gradually decrease along the direction close to the step portion 221, which may be selected according to practical situations, and the present invention is not limited thereto.
In some embodiments of the present invention, as shown in fig. 1 and 2, the inner circumferential wall of the mounting hole 11 has an annular sealing surface 111, the sealing surface 111 is located on a side (e.g., a right side in the drawing) of the internal thread near the step portion 221, the sealing surface 111 is configured as a tapered surface and an inner diameter of the sealing surface 111 gradually increases in a direction toward the step portion 221, the seal 3 abuts against the sealing surface 111, this arrangement, on the one hand, facilitates the entry of the seal 3 into the mounting hole 11 during the assembly of the first body 1 and the second body 2, after the second step surface 2212 is matched with the outer surface of the first main body 1 to be abutted, the sealing element 3 can be prevented from being extruded into the first internal thread to scratch the surface of the sealing element 3, and on the other hand, when the sealing element 3 is abutted to the sealing surface 111, extrusion deformation can be generated to a certain degree, so that the sealing effect can be improved.
In some embodiments of the present invention, as shown in fig. 1 and 2, the inner circumferential wall of the mounting hole 11 has an annular guide surface 112, the guide surface 112 is located on one side (e.g., the right side in the drawing) of the sealing surface 111 close to the step portion 221, and the guide surface 112 is directly opposite to the first step surface 2211 in the radial direction of the mounting hole 11, thereby allowing the first step surface 2211 to more easily protrude into the mounting hole 11 during the assembly of the first body 1 and the second body 2.
In some embodiments of the present invention, the first step surface 2211 is in clearance fit with the guide surface 112, and specifically, depending on the machining precision, the first step surface 2211 may abut against the guide surface 112, or a narrow gap may be formed between the first step surface 2211 and the guide surface 112, so as to effectively prevent the sealing member 3 from being squeezed out by the high-pressure medium, and facilitate installation.
In some embodiments of the present invention, the first step surface 2211 is perpendicular to the second step surface 2212, so the structure is simple and easy to implement.
Of course, the present invention is not limited thereto, and in other embodiments, the first step surface 2211 may form an acute included angle or an obtuse included angle with the second step surface 2212.
In some embodiments of the present invention, the guide surface 112 is configured as a cylindrical surface, thereby simplifying the structure and facilitating the processing.
In some embodiments of the present invention, as shown in fig. 3, the second portion 22 includes a clamping portion 222 and a connecting portion 223, the clamping portion 222 is connected to the first portion 21, the connecting portion 223 is disposed at an end (e.g., a right end in the drawing) of the clamping portion 222 far from the first portion 21, a step portion 221 is formed at an end (e.g., a left end in the drawing) of the clamping portion 222 close to the first portion 21, after the clamping portion 222 is disposed, during assembling of the first body 1 and the second body 2, a tool such as a wrench can be conveniently used to clamp the clamping portion 222 to facilitate installation of the second body 2, and the connecting portion 223 is disposed so that the second body 2 can be further connected to other components.
In some embodiments of the present invention, as shown in fig. 3, the outer circumferential wall of the connecting portion 223 is provided with a second external thread, and correspondingly, a part connected to the connecting portion 223 is provided with a second internal thread matching with the second external thread, so that the structure is simple and the connection is convenient.
In this case, the second body 2 may function like a stud to connect two components, respectively, and the structure is simple and easy to implement.
In some embodiments of the present invention, as shown in fig. 3, a second receiving groove 2231 extending annularly along a circumferential direction of the second portion 22 is formed on an outer circumferential wall of the connecting portion 223, the second receiving groove 2231 is located between the second external thread and the clamping portion 222, the second receiving groove 2231 is adapted to receive a second sealing element, the second receiving groove 2231 is configured to facilitate installation of the second sealing element, and after the second sealing element is assembled to the second receiving groove 2231, the second receiving groove 2231 itself can also play a certain limiting role for the second sealing element, which is simple in structure and easy to implement.
In some embodiments of the present invention, the end surface of the connecting portion 223 far from the clamping portion 222 is provided with a third receiving groove 2232 extending annularly along the circumferential direction of the second portion 22, the third receiving groove 2232 is adapted to receive a third sealing element, the third receiving groove 2232 is configured to facilitate installation of the third sealing element, and after the third sealing element is assembled in the third receiving groove 2232, the third receiving groove 2232 itself can also play a certain role in limiting the third sealing element.
In some embodiments of the invention, as shown in fig. 3, the second body 2 is provided with a flow hole 23 extending in the axial direction of the second body 2, thereby facilitating the flow of the medium.
In the description of the present invention, it is to be understood that the terms "left", "right", "inner", "outer", "circumferential", "axial", "radial", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, references to the description of the terms "some embodiments," "alternative embodiments," or the like, mean 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.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (13)
1. A sealing connection, comprising:
a first body having a mounting hole;
second main part and sealing member, the second main part includes first part and second part, the first part stretches into in the mounting hole with the internal perisporium of mounting hole links to each other, the second part with keeping away from of first part the one end of mounting hole links to each other, the sealing member overcoat in on the first part and with the internal perisporium butt of mounting hole, be formed with step portion on the peripheral wall of second part, the step portion is followed the circumferential direction of second main part extends the circularity, the step portion has crossing first step face and second step face, first step face is located in the mounting hole, the second step face be located outside the mounting hole and with the surface butt of first main part.
2. The sealing connection structure as claimed in claim 1, wherein an inner peripheral wall of the mounting hole is provided with a first internal thread, and an outer peripheral wall of the first portion is provided with a first external thread, the first internal thread being engaged with the first external thread.
3. The seal-connecting structure according to claim 2, wherein a first receiving groove extending annularly in a circumferential direction of the first portion is provided in an outer circumferential wall of the first portion, the first receiving groove extending to an end of the first portion close to the second portion, the first receiving groove being located between the first external thread and the first step surface, and the seal member being provided in the first receiving groove.
4. The seal-connecting structure according to claim 3, wherein a groove surface of the first receiving groove near the first-portion center axis is configured as a cylindrical surface or a tapered surface.
5. The seal-connecting structure according to claim 2, wherein the inner peripheral wall of the mounting hole has an annular sealing surface located on a side of the first internal thread that is close to the stepped portion, the sealing surface is configured as a tapered surface and an inner diameter of the sealing surface gradually increases in a direction toward the stepped portion, and the seal member abuts against the sealing surface.
6. The seal-connecting structure according to claim 5, wherein the inner peripheral wall of the mounting hole has an annular guide surface on a side of the seal surface close to the step portion, the guide surface being opposed to the first step surface in a radial direction of the mounting hole.
7. The sealing attachment of claim 6 wherein said first step surface is a clearance fit with said guide surface.
8. The sealing attachment structure of claim 1 wherein said first step surface is perpendicular to said second step surface.
9. The sealing connection structure according to claim 1, wherein the second portion includes a clamping portion connected to the first portion and a connecting portion provided at an end of the clamping portion remote from the first portion, and the step portion is formed at an end of the clamping portion close to the first portion.
10. The sealing connection as claimed in claim 9, wherein the outer peripheral wall of the connecting portion is provided with a second external thread.
11. The seal-connecting structure according to claim 10, wherein a second receiving groove extending annularly in a circumferential direction of the second portion is provided on an outer circumferential wall of the connecting portion, the second receiving groove being located between the second external thread and the clamping portion.
12. The seal-connecting structure according to claim 9, wherein a third receiving groove extending annularly in a circumferential direction of the second portion is provided on an end surface of the connecting portion remote from the clamping portion.
13. The sealing connection according to claim 1, wherein the second body is provided with a flow hole extending in an axial direction of the second body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010718155.4A CN113970067A (en) | 2020-07-23 | 2020-07-23 | Sealing connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010718155.4A CN113970067A (en) | 2020-07-23 | 2020-07-23 | Sealing connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113970067A true CN113970067A (en) | 2022-01-25 |
Family
ID=79585359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010718155.4A Pending CN113970067A (en) | 2020-07-23 | 2020-07-23 | Sealing connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113970067A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118030843A (en) * | 2024-01-31 | 2024-05-14 | 北京星河动力装备科技有限公司 | Sealing structure |
-
2020
- 2020-07-23 CN CN202010718155.4A patent/CN113970067A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118030843A (en) * | 2024-01-31 | 2024-05-14 | 北京星河动力装备科技有限公司 | Sealing structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7032934B2 (en) | Hydraulic fitting | |
| JP2803383B2 (en) | High pressure fluid fittings | |
| US9512946B2 (en) | Joint | |
| US20080036209A1 (en) | Assembly including a spring-energized polymeric seal | |
| US8491017B2 (en) | Fitting structure including a pair of connection pipes and a clamp ring | |
| CN212390106U (en) | Sealing connection structure | |
| CN113970067A (en) | Sealing connection structure | |
| CN212616855U (en) | Pipeline connecting structure | |
| CN212718487U (en) | With stop valve complex joint and idle call test system | |
| CN212251551U (en) | Non-welded pipeline sealing joint | |
| CN217927635U (en) | Pipeline joint structure | |
| CN219866795U (en) | Straight-through partition plate type hinged hose combined joint | |
| CN113028167A (en) | Steel clamp joint for pipeline connection | |
| CN217583311U (en) | Valve core assembling structure of vehicle pressure reducing valve | |
| CN221591809U (en) | Control valve | |
| CN221097874U (en) | Combined rubber tube joint | |
| CN217207955U (en) | Sealing connection structure and four-way valve | |
| US20240110648A1 (en) | A pipe coupling | |
| JP2002276883A (en) | Piping joint structure | |
| CN219899959U (en) | Be used for check valve binding off and leakproofness to detect frock | |
| CN213576102U (en) | High-pressure hose's connection structure and air compressor | |
| CN221629055U (en) | Quick adapter and union joint assembly | |
| CN214579441U (en) | Pre-assembled connector body of pre-assembled joint for groove steel pipe | |
| CN219796426U (en) | Sealing joint for fuel injection system test detection | |
| CN218644982U (en) | Underwater quick joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |