CN113586770A - Pipe joint structure for reverse flow interception - Google Patents
Pipe joint structure for reverse flow interception Download PDFInfo
- Publication number
- CN113586770A CN113586770A CN202110997236.7A CN202110997236A CN113586770A CN 113586770 A CN113586770 A CN 113586770A CN 202110997236 A CN202110997236 A CN 202110997236A CN 113586770 A CN113586770 A CN 113586770A
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- Prior art keywords
- hole
- pipe joint
- valve core
- elastic component
- reverse
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- 238000007789 sealing Methods 0.000 claims abstract description 36
- 239000012530 fluid Substances 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 abstract description 6
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
Images
Classifications
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
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- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L29/00—Joints with fluid cut-off means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
本公开涉及一种反向截流的管接头结构，包括管接头本体、阀芯、弹性组件、第一通孔、环形密封凸台、第二通孔；阀芯安装于第一通孔内且相适配，阀芯能够沿第一通孔滑动；阀芯具有圆锥部，圆锥部的一部分可嵌入第二通孔中密封第二通孔，圆锥部开设有至少一个第三通孔，第三通孔用以流体通过阀芯；弹性组件安装在第一通孔中，弹性组件一端与阀芯连接，弹性组件另端与管接头本体连接。本申请结构简单实用，安装方便快捷，占用空间小，不受系统空间结构布局方面的影响，能够满足系统中的流体单方向流动的需求，能够实现正向有效流通和反向有效密封截流。
The present disclosure relates to a pipe joint structure with reverse interception, comprising a pipe joint body, a valve core, an elastic component, a first through hole, an annular sealing boss, and a second through hole; The valve core can slide along the first through hole; the valve core has a conical part, a part of the conical part can be embedded in the second through hole to seal the second through hole, and the conical part is provided with at least one third through hole, and the third through hole is opened in the conical part. The hole is used for fluid to pass through the valve core; the elastic component is installed in the first through hole, one end of the elastic component is connected with the valve core, and the other end of the elastic component is connected with the pipe joint body. The application has simple and practical structure, convenient and quick installation, small occupied space, and is not affected by the spatial structure and layout of the system.
Description
Technical Field
The present disclosure relates to pipe joints, and more particularly to a pipe joint structure with reverse flow stopping.
Background
The conventional straight-through hydraulic pipe joint is generally only used for connecting pipelines and is convenient to mount and dismount the pipelines, and the inner diameter of the straight-through hydraulic pipe joint is usually a through hole. However, some hydraulic systems need to ensure that the fluid in the system can only flow in one direction, and it is the conventional practice to separately connect a check valve in series with the system oil path to prevent the fluid from flowing in the reverse direction.
Influenced by the space structure layout of the system, the traditional mode that the check valve is additionally arranged in the oil way of the system has certain limitation.
Accordingly, the present application provides a reverse intercepting pipe joint structure.
Disclosure of Invention
To solve at least one of the above technical problems, the present disclosure provides a reverse intercepting pipe joint structure.
The technical scheme adopted by the invention is as follows:
a reverse intercepting pipe joint structure comprises a pipe joint body, a valve core and an elastic assembly, wherein the pipe joint body is provided with a first through hole, an annular sealing boss is arranged in the pipe joint body, and a second through hole is formed in the middle of the annular sealing boss;
the valve core is arranged in the first through hole and matched with the first through hole, and the valve core can slide along the first through hole;
the valve core is provided with a conical part, one part of the conical part can be embedded into the second through hole to seal the second through hole, the conical part is provided with at least one third through hole, and the third through hole is used for allowing fluid to pass through the valve core;
the elastic component is arranged in the first through hole, one end of the elastic component is connected with the valve core, and the other end of the elastic component is connected with the pipe joint body.
Preferably, the valve core is provided with a communicating groove, and the third through hole communicates the first through hole regions at the two ends of the valve core through the communicating groove.
Preferably, the pipe joint further comprises a press fitting seat, the press fitting seat is detachably mounted at the end part of the pipe joint body, the press fitting seat is provided with a fourth through hole, and the other end of the elastic component is connected with the press fitting seat.
Preferably, the valve core is provided with a first annular limiting step groove, and one end of the elastic component is installed in the first annular limiting step groove.
Preferably, the press-fitting seat is provided with a second annular limiting step groove, and the other end of the elastic assembly is installed in the second annular limiting step groove.
Preferably, the press fitting seat is in threaded connection with the pipe joint body.
Preferably, the pipe joint body has an annular step, and the inner end of the press fitting seat is in circumferential contact with the annular step.
Preferably, the outer end of the press-fitting seat is provided with an auxiliary matching groove which is used for matching with a disassembling tool.
Preferably, the annular sealing boss is provided with an annular sealing conical surface, and the annular sealing conical surface is matched with the conical part to realize sealing.
To sum up, this application simple structure is practical, and simple to operate is swift, and occupation space is little, does not receive the influence in the aspect of the spatial structure overall arrangement of system, can satisfy the demand that the fluid folk prescription in the system flows to, can realize that forward effective circulation and reverse effective sealed damming.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.
FIG. 1 is a cross-sectional view of the structure of the present invention;
FIG. 2 is a cross-sectional view of the pipe joint body in the present invention;
FIG. 3 is a cross-sectional view of the press-fitting seat of the present invention;
FIG. 4 is a cross-sectional view of the valve cartridge of the present invention;
fig. 5 is a cross-sectional view of another coupling body according to the present invention.
The labels in the figure are:
the pipe joint comprises a pipe joint body 1, a first through hole 1-1, an annular sealing boss 1-2, a second through hole 1-3, an annular step 1-4, an annular sealing conical surface 1-5, a valve core 2, a conical part 2-1, a third through hole 2-2, a communicating groove 2-3, a first annular limiting step groove 2-4, an elastic component 3, a press-fitting seat 4, a fourth through hole 4-1, a second annular limiting step groove 4-2 and an auxiliary matching groove 4-3.
Detailed Description
The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
As shown in fig. 1 to 4, a pipe joint structure for reverse flow interception comprises a pipe joint body 1, a valve core 2 and an elastic component 3, wherein the pipe joint body 1 is provided with a first through hole 1-1, an annular sealing boss 1-2 is arranged in the pipe joint body 1, the annular sealing boss 1-2 extends into the first through hole 1-1, and a second through hole 1-3 is arranged in the middle of the annular sealing boss 1-2;
the valve core 2 is arranged in the first through hole 1-1 and matched with the first through hole, and the valve core 2 can slide along the first through hole 1-1;
the valve core 2 is provided with a conical part 2-1, the conical surface angle of the conical part 2-1 of the valve core 2 can be actually determined according to the realization requirement and the installation structure size, one part of the conical part 2-1 can be embedded into a second through hole 1-3 to seal the second through hole 1-3, after the conical part 2-1 is embedded, the surface of the conical part 2-1 is circumferentially contacted and sealed with an annular sealing boss 1-2, the conical part 2-1 is provided with at least one third through hole 2-2, the contact sealing position of the annular sealing boss 1-2 and the surface of the conical part 2-1 is positioned outside the position of the third through hole 2-2 on the conical part 2-1, the third through hole 2-2 is used for fluid to pass through the valve core 2, the valve core 2 is provided with a communication groove 2-3, the third through hole 2-2 communicates the first through holes 1-1 area at the two ends of the valve core 2 through the communication groove 2-3, the third through holes 2-2 are inclined, the third through holes 2-2 are communicated with the communicating grooves 2-3, specifically, the number of the third through holes 2-2 can be set according to actual requirements, and four third through holes are uniformly arranged at intervals along the circumferential direction of the conical part 2-1;
the elastic component 3 is specifically set as a spring, the elastic component 3 is arranged in the first through hole 1-1, one end of the elastic component 3 is connected with the valve core 2, the other end of the elastic component 3 is connected with the pipe joint body 1, and the elastic component 3 is in a compressed state.
The application has the specific working principle that:
when the fluid flows in the forward direction, namely flows from the right to the left in the attached drawing 1, after the forward fluid enters from the second through hole 1-3 of the annular sealing boss 1-2, the valve core 2 is pushed to overcome the pre-tightening force of the elastic component 3 and move towards the direction far away from the annular sealing boss 1-2, at the moment, the second through hole 1-3 is communicated with the first through hole 1-1 area at the outer end of the valve core 2, the fluid enters the first through hole 1-1 area at the outer end of the valve core 2 through the second through hole 1-3, then enters the third through hole 2-2, enters the communicating groove 2-3 through the third through hole 2-2, then enters the first through hole 1-1 area at the inner end of the valve core 2 through the communicating groove 2-3, and finally flows out of the whole pipe joint;
when reverse closure, namely flow from left to right in the attached drawing 1, reverse fluid enters the first through hole 1-1 and then enters the communicating groove 2-3 and pushes the valve core 2 towards the direction of the annular sealing boss 1-2, the stress area of the inner side of the valve core 2 is larger than that of the outer side, the resultant force of the reverse fluid pressure acting on the valve core 2 points to the direction of the annular sealing boss 1-2, and the action of the pre-tightening force of the elastic component 3 is added, so that the valve core 2 moves towards the direction of the annular sealing boss 1-2 and pushes the annular sealing boss 1-2 tightly to form sealing closure, and the reverse fluid can not flow through the pipe joint structure all the time. Of course, in use, the mounting direction of the pipe joint structure may be selected according to the direction requirements of the liquid flow in the pipeline.
Example 2
As shown in fig. 3 and 4, on the basis of embodiment 1, the pressure fitting device further comprises a pressure fitting seat 4, the pressure fitting seat 4 is detachably mounted at the end portion of the pipe joint body 1, the pressure fitting seat 4 is provided with a fourth through hole 4-1, and the other end of the elastic component 3 is connected with the pressure fitting seat 4, so that the pressure fitting seat 4 and the valve element 2 are convenient to detach and replace after the pressure fitting seat 4 and the valve element 2 are worn for a long time.
Further, the valve core 2 is provided with a first annular limiting step groove 2-4, one end of the elastic component 3 is arranged in the first annular limiting step groove 2-4, the press-fitting seat 4 is provided with a second annular limiting step groove 4-2, and the other end of the elastic component 3 is arranged in the second annular limiting step groove 4-2, so that the first annular limiting step groove 2-4 provides a stable installation base for one end of the elastic component 3 and limits the end of the elastic component 3, and the second annular limiting step groove 4-2 provides a stable installation base for the other end of the elastic component 3 and limits the end of the elastic component 3.
When the fluid flows in the forward direction, the forward fluid enters the area of the first through hole 1-1 at the inner end of the valve core 2 through the communicating groove 2-3, then enters the fourth through hole 4-1 of the press-fitting seat 4, and finally flows out of the whole pipe joint through the fourth through hole 4-1; when the reverse flow is intercepted, the reverse fluid firstly enters the fourth through hole 4-1 of the press mounting seat 4, enters the first through hole 1-1 through the fourth through hole 4-1, then enters the communicating groove 2-3 and pushes the valve core 2 towards the direction of the annular sealing boss 1-2.
Example 3
As shown in fig. 2 and 3, on the basis of embodiment 2, the press fitting seat 4 is in threaded connection with the pipe joint body 1, so that the installation and disassembly processes of the press fitting seat 4 are more convenient and faster, the pipe joint body 1 is provided with annular steps 1-4, the inner end of the press fitting seat 4 is in circumferential contact with the annular steps 1-4, and so that the annular steps 1-4 can limit the installation of the press fitting seat 4.
Furthermore, the outer end of the press mounting seat 4 is provided with an auxiliary matching groove 4-3, the auxiliary matching groove 4-3 is used for matching with an assembling and disassembling tool, the auxiliary matching groove 4-3 is a straight groove or a cross groove and is specifically arranged into a straight groove, so that the press mounting seat 4 can be conveniently installed and disassembled, and the press mounting seat 4 can be rotatably installed or disassembled by being clamped in the auxiliary matching groove 4-3 through the assembling and disassembling tool.
Example 4
As shown in fig. 5, on the basis of embodiment 1, embodiment 2 or embodiment 3, the annular sealing boss 1-2 has an annular sealing conical surface 1-5, and the annular sealing conical surface 1-5 is matched with the conical portion 2-1 to realize sealing, so that the sealing surface between the annular sealing boss 1-2 and the conical portion 2-1 is an annular conical surface, the sealing effect is better, and the reverse intercepting effect of the scheme is better.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
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 at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.
Claims (9)
1. The utility model provides a reverse pipe joint structure that dams which characterized in that: the pipe joint comprises a pipe joint body (1), a valve core (2) and an elastic component (3), wherein the pipe joint body (1) is provided with a first through hole (1-1), an annular sealing boss (1-2) is arranged in the pipe joint body (1), and a second through hole (1-3) is formed in the middle of the annular sealing boss (1-2);
the valve core (2) is arranged in the first through hole (1-1) and matched with the first through hole, and the valve core (2) can slide along the first through hole (1-1);
the valve core (2) is provided with a conical part (2-1), one part of the conical part (2-1) can be embedded into the second through hole (1-3) to seal the second through hole (1-3), the conical part (2-1) is provided with at least one third through hole (2-2), and the third through hole (2-2) is used for allowing fluid to pass through the valve core (2);
the elastic component (3) is arranged in the first through hole (1-1), one end of the elastic component (3) is connected with the valve core (2), and the other end of the elastic component (3) is connected with the pipe joint body (1).
2. A reverse intercepting pipe joint structure according to claim 1, wherein: the valve core (2) is provided with a communicating groove (2-3), and the third through hole (2-2) communicates the first through holes (1-1) at the two ends of the valve core (2) in an area manner through the communicating groove (2-3).
3. A reverse intercepting pipe joint structure according to claim 1, wherein: the pipe joint is characterized by further comprising a press fitting seat (4), the press fitting seat (4) is detachably mounted at the end of the pipe joint body (1), the press fitting seat (4) is provided with a fourth through hole (4-1), and the other end of the elastic component (3) is connected with the press fitting seat (4).
4. A reverse intercepting pipe joint structure according to claim 3, wherein: the valve core (2) is provided with a first annular limiting step groove (2-4), and one end of the elastic component (3) is installed in the first annular limiting step groove (2-4).
5. A reverse intercepting pipe joint structure according to claim 3, wherein: the press-fitting seat (4) is provided with a second annular limiting step groove (4-2), and the other end of the elastic component (3) is arranged in the second annular limiting step groove (4-2).
6. A reverse flow-intercepting pipe joint structure according to any one of claims 3 to 5, wherein: the press fitting seat (4) is in threaded connection with the pipe joint body (1).
7. A reverse intercepting pipe joint structure according to claim 6, wherein: the pipe joint body (1) is provided with annular steps (1-4), and the inner end of the press fitting seat (4) is in circumferential contact with the annular steps (1-4).
8. A reverse intercepting pipe joint structure according to claim 6, wherein: the outer end of the press-fitting seat (4) is provided with an auxiliary matching groove (4-3), and the auxiliary matching groove (4-3) is used for matching with a disassembling tool.
9. A reverse intercepting pipe joint structure according to claim 1, wherein: the annular sealing boss (1-2) is provided with an annular sealing conical surface (1-5), and the annular sealing conical surface (1-5) is matched with the conical part (2-1) to realize sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110997236.7A CN113586770A (en) | 2021-08-27 | 2021-08-27 | Pipe joint structure for reverse flow interception |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110997236.7A CN113586770A (en) | 2021-08-27 | 2021-08-27 | Pipe joint structure for reverse flow interception |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113586770A true CN113586770A (en) | 2021-11-02 |
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ID=78239860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110997236.7A Pending CN113586770A (en) | 2021-08-27 | 2021-08-27 | Pipe joint structure for reverse flow interception |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113586770A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115059760A (en) * | 2022-07-26 | 2022-09-16 | 常州市中昊轨道交通科技发展有限公司 | High-temperature-resistant rubber sealing ring |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201517394U (en) * | 2009-10-19 | 2010-06-30 | 孙爱军 | Anti-theft blocking-removing check valve of oil production well head |
| CN202302130U (en) * | 2011-11-02 | 2012-07-04 | 吴聪乐 | Novel tubular type check valve capable of bearing hydraulic impact |
| CN205652200U (en) * | 2016-04-18 | 2016-10-19 | 金龙联合汽车工业（苏州）有限公司 | New forms of energy passenger train is fluid pressure type bi -pass check valve for a steering system |
| CN210637552U (en) * | 2019-09-19 | 2020-05-29 | 张家口市宣化正远钻采机械有限公司 | One-way joint for deep hole drilling machine |
-
2021
- 2021-08-27 CN CN202110997236.7A patent/CN113586770A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201517394U (en) * | 2009-10-19 | 2010-06-30 | 孙爱军 | Anti-theft blocking-removing check valve of oil production well head |
| CN202302130U (en) * | 2011-11-02 | 2012-07-04 | 吴聪乐 | Novel tubular type check valve capable of bearing hydraulic impact |
| CN205652200U (en) * | 2016-04-18 | 2016-10-19 | 金龙联合汽车工业（苏州）有限公司 | New forms of energy passenger train is fluid pressure type bi -pass check valve for a steering system |
| CN210637552U (en) * | 2019-09-19 | 2020-05-29 | 张家口市宣化正远钻采机械有限公司 | One-way joint for deep hole drilling machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115059760A (en) * | 2022-07-26 | 2022-09-16 | 常州市中昊轨道交通科技发展有限公司 | High-temperature-resistant rubber sealing ring |
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Application publication date: 20211102 |
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