CN112576836A - Ultrahigh pressure hydraulic expansion pipe connecting pipe joint - Google Patents
Ultrahigh pressure hydraulic expansion pipe connecting pipe joint Download PDFInfo
- Publication number
- CN112576836A CN112576836A CN202011536803.0A CN202011536803A CN112576836A CN 112576836 A CN112576836 A CN 112576836A CN 202011536803 A CN202011536803 A CN 202011536803A CN 112576836 A CN112576836 A CN 112576836A
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- Prior art keywords
- head
- clamping
- pipe
- pressure
- sealing
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- 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
- 238000001125 extrusion Methods 0.000 claims abstract description 62
- 238000007789 sealing Methods 0.000 claims abstract description 52
- 230000002596 correlated effect Effects 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000005057 refrigeration Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
- F16L37/092—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector
- F16L37/0927—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector the wedge element being axially displaceable for releasing the coupling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
-
- 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
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
- F16L37/123—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members using a retaining member in the form of a wedge
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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
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
- F16L37/138—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members using an axially movable sleeve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a super-high pressure hydraulic pressure expand tube connecting pipe joint, belonging to the technical field of low temperature refrigeration, the joint comprises: a tube head outer tube; the clamping head is sleeved inside the outer pipe of the pipe head; the extrusion head is arranged in the outer tube of the tube head in a sliding and sealing manner, the extrusion head is driven by a medium with pressure to provide thrust for the clamping head, and the extrusion head and the clamping head are concentrically arranged; the locking force of the clamping head is positively correlated with the thrust borne by the clamping head, so that automatic clamping of the clamping head is realized, the characteristic that the clamping force is larger as the pressure is higher is achieved, and the purpose that the joint falls off under the condition of high pressure and safety accidents occur is effectively avoided.
Description
Technical Field
The invention belongs to the technical field of low-temperature refrigeration, and particularly relates to an ultrahigh-pressure hydraulic expansion pipe connecting pipe joint.
Background
The hydraulic expansion pipe joint is mainly used for a connector between hydraulic equipment and a pipeline, and because the expansion pipe pressure in low-temperature refrigeration equipment is ultrahigh pressure and the maximum pressure is 200MPa, a common clamping joint is difficult to clamp. Therefore, the joint is easy to fall off under the condition of high pressure, thereby causing the occurrence of safety accidents.
Disclosure of Invention
In view of the above, in order to solve the above problems in the prior art, the present invention aims to provide an ultrahigh pressure hydraulic expansion pipe connection pipe joint to achieve the purpose of automatically clamping the joint, and the ultrahigh pressure hydraulic expansion pipe connection pipe joint has the characteristic that the clamping force is increased when the pressure is higher, so that the purpose of preventing the joint from falling off under the condition of high pressure and causing safety accidents is effectively avoided.
The technical scheme adopted by the invention is as follows: an ultra-high pressure hydraulic expansion joint coupling, the coupling comprising:
a tube head outer tube;
the clamping head is sleeved inside the outer pipe of the pipe head;
the extrusion head is arranged in the outer tube of the tube head in a sliding and sealing manner, the extrusion head is driven by a medium with pressure to provide thrust for the clamping head, and the extrusion head and the clamping head are concentrically arranged;
the locking force of the clamping head is positively correlated with the thrust borne by the clamping head.
Furthermore, a connecting pipe is clamped in the clamping head, the connecting pipe is sleeved into the extrusion head, and a medium channel communicated with the connecting pipe is arranged in the extrusion head so as to convey the medium with pressure to the connecting pipe through the medium channel.
Furthermore, the end part of the tube head outer tube is hermetically sleeved with a sealing head, the sealing head is hermetically sleeved with the extrusion head, and a pressure cavity is formed among the sealing head, the extrusion head and the tube head outer tube, the pressure cavity is communicated with the medium channel through a locking through hole, and pressure is provided for the extrusion head after the medium under pressure enters the pressure cavity.
Furthermore, the force bearing area of one side of the pressure cavity, which faces the extrusion head, is larger than that of one side of the pressure cavity, which faces the sealing head, an inclined plane is arranged on one side of the pressure cavity, the extrusion head only bears the pressure in the X-axis direction, and the sealing head decomposes the force to the X-axis and the Y-axis, so that the X-axis force bearing of the sealing head is reduced.
Furthermore, sealing rings are arranged between the tube head outer tube and the sealing head and between the sealing head and the extrusion head, so that a good sliding sealing effect is ensured.
Furthermore, the extrusion head is designed to be of a step cylindrical structure, the large end of the extrusion head is hermetically sleeved in the tube head outer tube, the small end of the extrusion head is hermetically sleeved with the sealing head, and a sealing ring is arranged between the side wall of the large end of the extrusion head and the tube head outer tube.
Furthermore, the end part of the extrusion head is provided with a U-shaped ring groove, and the U-shaped ring groove is assembled and connected with the clamping head, so that the pushing, the returning and the concentric requirement between the pushing and the returning can be simultaneously realized.
Furthermore, the inside of the clamping head is a clamping hole, the outer side part of the clamping head is in a wedge-shaped structure, and the clamping head is formed by surrounding at least three clamping blocks along the same circumferential direction, so that the matching gap between the clamping blocks is reduced when the clamping head is pushed, and the clamping function is realized.
Furthermore, the cross section of each clamping block in the same circumferential direction is of the same fan-shaped structure, and each clamping block is of a wedge-shaped structure along the axial direction of the clamping hole, so that the clamping blocks are uniformly stressed and can be synchronously clamped on the connecting pipe with the same force.
Furthermore, the extrusion head is equipped with the unlocking piece on being located the outside side of tube head outer tube, and the unlocking piece is established to the structure of buckling to realize the function of quick unblock.
The invention has the beneficial effects that:
1. when the ultrahigh-pressure hydraulic expansion pipe connecting pipe joint provided by the invention is adopted, a medium with pressure enters the connecting pipe, and simultaneously enters an air cavity formed by the extrusion head and the sealing head through the locking through hole, the extrusion head is pushed to move towards the reverse direction of the sealing head due to air pressure so as to push the clamping head, and the clamping head is formed by combining a plurality of clamping blocks in a fan-shaped wedge-shaped structure, so that when the clamping head moves towards a taper position, the fit clearance between the clamping blocks is reduced, the connecting pipe is in a locking state, and meanwhile, the higher the air pressure is, the larger the locking force is, so that the falling of the joint under the condition of high pressure is effectively avoided, and the occurrence of safety accidents is avoided.
Drawings
FIG. 1 is a schematic view of the overall internal structure of an ultrahigh pressure hydraulic expansion joint coupling provided by the invention;
FIG. 2 is a schematic front view of a clamping head in the ultra-high pressure hydraulic expansion joint coupling provided by the present invention;
FIG. 3 is a side view of a clamp head in an ultra high pressure hydraulic expansion joint coupling provided by the present invention;
FIG. 4 is a schematic diagram of the internal operation of the ultra-high pressure hydraulic expansion joint coupling provided by the invention in practical application;
the drawings are labeled as follows:
the method comprises the following steps of 1-a tube head outer tube, 2-a clamping head, 3-an extrusion head, 4-a medium channel, 5-a locking through hole, 6-a sealing head, 7-a pressure cavity, 8-an unlocking sheet, 9-a sealing ring and 10-a clamping block.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that the indication of the orientation or the positional relationship is based on the orientation or the positional relationship shown in the drawings, or the orientation or the positional relationship which is usually placed when the product of the present invention is used, or the orientation or the positional relationship which is usually understood by those skilled in the art, or the orientation or the positional relationship which is usually placed when the product of the present invention is used, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, cannot be understood as limiting the present invention. Furthermore, the terms "first" and "second" are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be further noted that the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases by those skilled in the art; the drawings in the embodiments are used for clearly and completely describing the technical scheme in the embodiments of the invention, and obviously, the described embodiments are a part of the embodiments of the invention, but not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Example 1
The utility model provides an superhigh pressure hydraulic pressure expand tube coupling in this embodiment, aim at realizing self-holding through this joint, pressure is higher the clamp force is big more, thereby effectual stopped appear under the high pressure condition that the joint drops, thereby influence the incident, this joint mainly includes: the pipe head outer cylinder, the clamping head 2, the extrusion head 3 and the sealing head 6 are specifically designed as follows as shown in figure 1:
tube head outer tube 1
The tube head outer tube 1 is used as a main carrier part of the tube head, the tube head outer tube 1 is of a hollow structure with two open ends, a clamping head 2 is sleeved in one end of the tube head outer tube 1, and a sealing head 6 is sleeved in the other end of the tube head outer tube.
② clamping head 2
The clamping head 2 is sleeved inside the outer tube 1 of the tube head, and the clamping head 2 has the following characteristics in structural design: the locking force of the clamping head 2 is positively correlated with the thrust force exerted on the clamping head 2, and in practical application, the connecting pipe is clamped in the clamping head 2, and the clamping force on the connecting pipe is larger along with the larger thrust force exerted on the clamping head 2, so that the connecting pipe is clamped more tightly when the pressure of a medium conveyed into the connecting pipe is higher, and the phenomenon of looseness cannot occur.
In practical application, as shown in fig. 2 and 3, the design of the clamping head 2 is as follows:
the inside of pressing from both sides tight head 2 is for pressing from both sides tight hole and the outside portion that presss from both sides tight head 2 establishes to the wedge column structure, and this wedge column structure and the inside phase-match of tube head outer tube 1, when pressing from both sides tight head 2 and receiving external thrust, under the wedge column structure of pressing from both sides tight head 2 and the tube head outer tube 1 interact, each cooperation clearance that presss from both sides tight piece 10 in pressing from both sides tight head 2 reduces to reach the effect of pressing from both sides the connecting pipe tight. Specifically, the clamping head 2 is defined by three clamping blocks 10 along the same circumferential direction, the cross section of each clamping block 10 in the same circumferential direction is of the same fan-shaped structure, the central angles of the fan-shaped structures are all 120 °, and each clamping block 10 is of a wedge-shaped structure along the axial direction of the clamping hole, the wedge angle of the wedge-shaped structure can be determined according to actual requirements, and the wedge angle is not limited here. In the initial state, there is the fit-up clearance at three clamp splice 10 on the circumferential direction, makes displacement motion along with pressing from both sides tight head 2 for tube head outer tube 1, and because the outside of pressing from both sides tight head 2 is wedge column structure, consequently, can realize along with pressing from both sides tight head 2 and receive under the effect of external thrust, the fit-up clearance between each clamp splice 10 reduces to this realization is tight to the firm clamp of connecting pipe.
In order to further improve the clamping firmness of the clamping head 2 to the connecting pipe, the anti-slip lines are arranged on the inner side surface of each clamping block 10, so that after the clamping head 2 is enclosed, the anti-slip lines are arranged on the inner wall of a clamping hole of the clamping head 2, and the phenomenon of falling off is not easy to occur after the connecting pipe is clamped.
③ extrusion head 3
The extrusion head 3 is arranged inside the tube head outer tube 1 in a sliding mode, one end of the extrusion head 3 is abutted to the clamping head 2, and the extrusion head 3 drives the clamping head 2 to push through the medium with pressure so as to determine the clamping force of the clamping head 2 through the pressure of the medium with pressure. The connecting pipe is sleeved into the extrusion head 3, and a medium channel 4 communicated with the connecting pipe is arranged in the extrusion head 3, so that the medium with pressure enters the connecting pipe through the medium channel 4.
A sealing head 6 is hermetically sleeved at the end part of the tube head outer tube 1, and a plurality of sealing rings 9 are arranged between the tube head outer tube 1 and the sealing head 6 to ensure the sealing property between the tube head outer tube 1 and the sealing head 6; with sealed head 6 with sealed suit between the extrusion head 3 is equipped with a plurality of sealing washer 9 between sealed head 6 and the extrusion head 3 in order to ensure good leakproofness, and wherein, sealing washer 9 is the O type sealing washer 9 of purchase, and O type sealing washer 9 is located on sealed head 6 to realize the sealed between sealed head 6 and tube head outer tube 1. As shown in fig. 4, a pressure chamber 7 is formed among the sealing head 6, the extrusion head 3 and the outer tube 1 of the tube head, the pressure chamber 7 is communicated with the medium channel 4 through the locking through hole 5, and under the pressure of the pressurized medium in the pressure chamber 7, sufficient acting force can be provided for the extrusion head 3. In this embodiment, the positions of the air cavities of the sealing head 6 and the extrusion head 3 are designed to be oblique angles of 60 degrees, and the structure can decompose the pressure of the air pressure to the directions of the X axis and the Y axis, wherein the force distributed to the Y axis is 60%, so that the pressure of the X axis is reduced, and the sealing head 6 and the outer tube 1 of the tube head can be connected by threads, thereby achieving the purpose that the joint can be completely disassembled.
Simultaneously, pressure chamber 7 is greater than pressure chamber 7 towards one side of sealed head 6 towards one side lifting surface of extrusion head 3, and because pressure chamber 7 is the inclined plane design at 60 degrees oblique angles towards one side of sealed head 6, this structural design effect does: the stress area of the extrusion head 3 is larger than that of the sealing head 6, the extrusion head 3 only bears the pressure in the X-axis direction, and the sealing head 6 decomposes the force to the X-axis and the Y-axis, so that the stress of the X-axis of the sealing head 6 is reduced.
In this embodiment, establish extrusion head 3 to be step cylinder structure, and the sealed suit of main aspects of extrusion head 3 is in tube head outer tube 1, sealed suit between the tip of extrusion head 3 and sealing head 6, for guaranteeing good sealed effect, be equipped with sealing washer 9 between the main aspects lateral wall of pressure head and tube head outer tube 1, sealing washer 9 is the O type sealing washer 9 of purchase, O type sealing washer 9 is located respectively on the main aspects and the tip of extrusion head 3, in order to realize extrusion head 3 and tube head outer tube 1, the sealed between extrusion head 3 and the sealing head 6.
Be equipped with U type annular at the tip of extrusion head 3, through this U type annular with press from both sides tight first 2 assembly connection, can realize simultaneously advancing, return and need satisfy concentric requirement to realize when extrusion head 3 makes displacement motion, can link and press from both sides tight first 2 and make relative displacement motion for tube head outer tube 1, and then satisfy the tight function of clamp of tight head 2 to the clamp of connecting pipe.
Example 2
On the basis of embodiment 1, in order to realize quick unlocking of the pipe joint, as shown in fig. 1, an unlocking piece 8 is arranged on the side surface of the extrusion head 3, which is located outside the pipe joint outer pipe 1, and the unlocking piece 8 is designed to be a bending structure, so that the unlocking is realized by pulling the locking head to move reversely by using a lever principle.
In practical application, the unlocking process is simple, when the unlocking is needed, the medium with pressure is stopped to be led in, the pressure relief device is opened, after the pressure is relieved, the unlocking sheet 8 is tightly held by hands, and the clamping head 2 moves reversely to further loosen the unlocking.
The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.
Claims (10)
1. The utility model provides an ultrahigh pressure hydraulic pressure expand tube coupling which characterized in that, this joint includes:
a tube head outer tube;
the clamping head is sleeved inside the outer pipe of the pipe head;
the extrusion head is arranged in the outer tube of the tube head in a sliding and sealing manner, the extrusion head is driven by a medium with pressure to provide thrust for the clamping head, and the extrusion head and the clamping head are concentrically arranged;
the locking force of the clamping head is positively correlated with the thrust borne by the clamping head.
2. The ultrahigh-pressure hydraulic expansion pipe connecting pipe joint according to claim 1, wherein the connecting pipe is clamped in the clamping head, the connecting pipe is sleeved in the extrusion head, and a medium channel communicated with the connecting pipe is arranged in the extrusion head.
3. The ultrahigh-pressure hydraulic expansion pipe connecting pipe joint according to claim 2, wherein a sealing head is hermetically sleeved on the end part of the pipe head outer pipe, the sealing head is hermetically sleeved with the extrusion head, a pressure cavity is formed among the sealing head, the extrusion head and the pipe head outer pipe, and the pressure cavity is communicated with the medium channel through a locking through hole.
4. The ultrahigh-pressure hydraulic expansion pipe connecting pipe joint according to claim 3, wherein the side of the pressure chamber facing the extrusion head is larger in force-bearing area than the side of the pressure chamber facing the sealing head, and the side of the pressure chamber facing the sealing head is provided with an inclined surface.
5. The ultrahigh-pressure hydraulic expansion pipe connecting pipe joint according to claim 3, wherein sealing rings are arranged between the pipe head outer pipe and the sealing head and between the sealing head and the extrusion head.
6. The ultrahigh-pressure hydraulic expansion pipe connecting pipe joint according to claim 3, wherein the extrusion head is designed to be of a stepped cylindrical structure, the large end of the extrusion head is hermetically sleeved in the pipe head outer pipe, the small end of the extrusion head is hermetically sleeved with the sealing head, and a sealing ring is arranged between the side wall of the large end of the extrusion head and the pipe head outer pipe.
7. The ultra-high pressure hydraulic expansion joint pipe joint according to claim 1, wherein the end of the extrusion head is provided with a U-shaped ring groove, and the U-shaped ring groove is assembled and connected with the clamping head.
8. The ultrahigh-pressure hydraulic expansion joint pipe joint according to claim 1, wherein the inside of the clamping head is a clamping hole and the outside of the clamping head is in a wedge-shaped structure, and the clamping head is surrounded by at least three clamping blocks along the same circumferential direction.
9. The ultrahigh-pressure hydraulic expansion joint pipe joint according to claim 8, wherein the cross section of each clamping block in the same circumferential direction is of the same fan-shaped structure, and each clamping block is of a wedge-shaped structure in the axial direction of the clamping hole.
10. The ultrahigh-pressure hydraulic expansion pipe connecting pipe joint according to claim 1, wherein the extrusion head is provided with an unlocking piece on the outer side surface of the pipe head outer pipe, and the unlocking piece is of a bent structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011536803.0A CN112576836A (en) | 2020-12-23 | 2020-12-23 | Ultrahigh pressure hydraulic expansion pipe connecting pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011536803.0A CN112576836A (en) | 2020-12-23 | 2020-12-23 | Ultrahigh pressure hydraulic expansion pipe connecting pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112576836A true CN112576836A (en) | 2021-03-30 |
Family
ID=75139398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011536803.0A Pending CN112576836A (en) | 2020-12-23 | 2020-12-23 | Ultrahigh pressure hydraulic expansion pipe connecting pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112576836A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117138221A (en) * | 2023-10-30 | 2023-12-01 | 中山市人民医院 | ECMO tube placing tube joint for preventing unplanned tube drawing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1860323A (en) * | 2003-09-04 | 2006-11-08 | 阿吉特·辛格·吉尔 | Pipe coupling |
| CN206310133U (en) * | 2016-12-02 | 2017-07-07 | 中国石油天然气股份有限公司 | Single tube pressure test quick coupling |
| CN107524819A (en) * | 2017-08-28 | 2017-12-29 | 宁波长壁流体动力科技有限公司 | A kind of core assembly |
| CN112096992A (en) * | 2020-09-01 | 2020-12-18 | 格力电器（武汉）有限公司 | Quick-operation joint and have its connection structure |
| CN214248654U (en) * | 2020-12-23 | 2021-09-21 | 成都科瑞尔低温设备有限公司 | Ultrahigh pressure hydraulic expansion pipe connecting pipe joint |
-
2020
- 2020-12-23 CN CN202011536803.0A patent/CN112576836A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1860323A (en) * | 2003-09-04 | 2006-11-08 | 阿吉特·辛格·吉尔 | Pipe coupling |
| CN206310133U (en) * | 2016-12-02 | 2017-07-07 | 中国石油天然气股份有限公司 | Single tube pressure test quick coupling |
| CN107524819A (en) * | 2017-08-28 | 2017-12-29 | 宁波长壁流体动力科技有限公司 | A kind of core assembly |
| CN112096992A (en) * | 2020-09-01 | 2020-12-18 | 格力电器（武汉）有限公司 | Quick-operation joint and have its connection structure |
| CN214248654U (en) * | 2020-12-23 | 2021-09-21 | 成都科瑞尔低温设备有限公司 | Ultrahigh pressure hydraulic expansion pipe connecting pipe joint |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117138221A (en) * | 2023-10-30 | 2023-12-01 | 中山市人民医院 | ECMO tube placing tube joint for preventing unplanned tube drawing |
| CN117138221B (en) * | 2023-10-30 | 2024-01-09 | 中山市人民医院 | ECMO tube placing tube joint for preventing unplanned tube drawing |
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