CN109538861A - Hydraulic joint - Google Patents
Hydraulic joint Download PDFInfo
- Publication number
- CN109538861A CN109538861A CN201910041732.8A CN201910041732A CN109538861A CN 109538861 A CN109538861 A CN 109538861A CN 201910041732 A CN201910041732 A CN 201910041732A CN 109538861 A CN109538861 A CN 109538861A
- Authority
- CN
- China
- Prior art keywords
- shell
- connector
- core
- sliding sleeve
- spring
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 43
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000003921 oil Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000010426 asphalt Substances 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
-
- 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
- F16L29/04—Joints with fluid cut-off means with a cut-off device in each of the two pipe ends, the cut-off devices being automatically opened when the coupling is applied
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The present invention relates to technical field of hydraulic pressure, more particularly, to a kind of hydraulic joint, including the first connector and the second connector being used cooperatively with first connector；First connector and second connector can each self-sealings；After first connector is connect with second connector, first core is abutted with second core, the first shell is abutted with second sliding sleeve, by pushing the first connector and the second connector, second core pushes first core mobile to the rear end of first shell, while first core drives the first sliding sleeve mobile to the rear end of first shell；The first shell pushes second sliding sleeve mobile to the end of the second shell, forms the channel passed through for liquid inside two connectors at this time.The present invention oil of respective connector can be isolated before two connectors separate, and prevent oil leak.
Description
Technical field
The present invention relates to technical field of hydraulic pressure, more particularly, to a kind of hydraulic joint.
Background technique
Currently, being mostly that top between relying on both ends mutually opens under external force for the union between hydraulic device
Respective spool and guarantee the unimpeded of pipeline, in mutual timesharing under respective action of reset spring closing oil path, but disconnect
Due to disconnecting, there are the hydraulic oil of certain space between front connector when oil circuit, and when break connector, these oil can flow out, and cause wave
Take and pollutes.To solve this problem, the present invention provides it is a kind of can be by respective connector before two connectors separate
Oil isolation, prevents the quick coupling of oil leak.
The information disclosed in the background technology section is intended only to deepen understanding of the general background technology to the present invention, and
It is not construed as recognizing or implying in any form that the information constitutes the prior art known to those skilled in the art.
Summary of the invention
It, can be by respective connector before two connectors separate the purpose of the present invention is to provide a kind of hydraulic joint
Oil isolation, prevents oil leak.
Hydraulic joint provided by the invention, comprising: the first connector and the second connector being used cooperatively with first connector；
First connector includes first shell, and the first shell is internally provided with to be slidably matched with the first shell
The first core, be provided between first core and the first shell for by first core and the first shell
First sealing ring of body sealing；The first spring and the first sliding sleeve are successively arranged on first core, first sliding sleeve
One end is connected with second spring；
Second connector includes second shell, and the second shell is internally provided with to be fixedly connected with the second shell
The second core, be provided between second core and the second shell for by second core and the second shell
Second sealing ring of body sealing, set setting third spring and the second sliding sleeve on second core, second sliding sleeve with it is described
Third sealing ring is provided between second core, second sliding sleeve one end is connect with the third spring；
After first connector is connect with second connector, first core is abutted with second core, described
First shell is abutted with second sliding sleeve, and by pushing the first connector and the second connector, second core pushes described the
One core is mobile to the rear end of first shell, while first core drives the first sliding sleeve mobile to the rear end of first shell；
The first shell pushes second sliding sleeve mobile to the end of the second shell, is formed be used for inside two connectors at this time
The channel that liquid passes through.
In the above-mentioned technical solutions, further, the first shell is internally provided with for stopping first sliding sleeve
The first interstage sleeve, the one end of first interstage sleeve connect with the second spring；
The first gear, which is put on, is also connected with the first snap ring.
In the above-mentioned technical solutions, further, when first connector and second connector are not connected to, described first
Sealing ring is connected on the first core.
In the above-mentioned technical solutions, further, set setting third sliding sleeve and the 4th spring on second core, it is described
Third sliding sleeve one end is connect with the 4th spring.
In the above-mentioned technical solutions, further, the third sliding sleeve other end is contacted with second core, top with
The second sliding sleeve contact.
In the above-mentioned technical solutions, further, the second shell is internally provided with the second interstage sleeve, second interstage sleeve
It is connect with the third spring.
In the above-mentioned technical solutions, further, when first connector and second connector are not connected to, the first core
Edge it is concordant with one end of the first shell；
The edge of second sliding sleeve is concordant with one end of the second shell.
In the above-mentioned technical solutions, further, when first connector and second connector are not connected to, described first
The end thereof contacts of one end of sliding sleeve and the first shell, one end of second sliding sleeve and a termination of the second shell
Touching.
In the above-mentioned technical solutions, further, the end thereof contacts of one end of first core and second core,
And the end face diameter of second core of the end face of first core is identical.
In the above-mentioned technical solutions, further, the end thereof contacts of one end of the first shell and second sliding sleeve,
And the wall thickness of the contact face of the first shell is identical as the wall thickness of contact face of second sliding sleeve.
Compared with the existing technology, hydraulic joint provided by the invention has the advantage that
Hydraulic joint provided by the invention, including the first connector and the second connector being used cooperatively with the first connector, when
After one connector is connect with the second connector, the first core is abutted with the second core, while first shell is abutted with the second sliding sleeve, is passed through
The first connector and the second connector are pushed, since the second core is fixedly connected with second shell, the second core pushes the first core
Body is mobile；First core first moves backward the first core by squeezing the first spring, when the first core and the first sliding sleeve connect
After touch, then the first sliding sleeve is driven to move backward together, the first sliding sleeve, which then passes through extruding second spring, moves backward the first sliding sleeve,
The first sealing ring is then moved between the first core and the first sliding sleeve simultaneously；At this point, the first core is detached from the first sliding sleeve
The inside of first shell, the first connector then forms channel.Since first shell is abutted with the second sliding sleeve, connect by pushing first
Head and the second connector, therefore first shell pushes the second sliding sleeve to move backward, the second sliding sleeve first is made by squeezing third spring
Second sliding sleeve moves backward, and the second sliding sleeve is made to be detached from the second core, meanwhile, the second sealing ring is moved to first shell and second
Between shell, third sealing ring is moved between the second sliding sleeve and third sliding sleeve, at this point, the inside of the second connector form it is logical
Road.Therefore the channel passed through for liquid is formed after the first connector is connect with the second connector.When the first connector and the second connector point
From when, the first sliding sleeve is squeezed by the elastic force of second spring, keeps the first sliding sleeve mobile, while the elastic force of the first spring squeezes
First core keeps the first core mobile, after the first sealing ring is moved between the first core and first shell, the first connector with
Second connector is not completely separated also, but the first connector has been in sealing state.At the same time, the second bullet for sliding over third spring
Forward slip under property power, when the second sealing ring is moved between the second sliding sleeve and second shell, and third sealing ring is moved to
After between second sliding sleeve and the second core, the first connector is not completely separated also with the second connector, but the second connector has been in sealing
State.Therefore after the first connector and the second connector are completely separated, joint will not oil leak, have the advantages that oil-leakage-prevention.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is structural schematic diagram when hydraulic joint provided in an embodiment of the present invention is not connected；
Fig. 2 is the structural schematic diagram of the first connector of hydraulic joint provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the second connector of hydraulic joint provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram after hydraulic joint provided in an embodiment of the present invention connection.
Icon:
The first connector of 1-；The second connector of 2-；The first core of 3-；The first sealing ring of 4-；The first spring of 5-；The first sliding sleeve of 6-；
The first snap ring of 7-；8- second spring；The first interstage sleeve of 9-；The second snap ring of 10-；11- first shell；The second sealing ring of 12-；13-
Three sealing rings；The second sliding sleeve of 14-；The second core of 15-；16- third sliding sleeve；17- third spring；The 4th spring of 18-；19- second
Interstage sleeve；20- third snap ring；21- second shell.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second " are only
For descriptive purposes, it is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The present invention is described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.
Embodiment
As shown in Figs 1-4, hydraulic joint provided in this embodiment, comprising: the first connector 1 and with the first connector 1 cooperation make
Second connector 2；First connector 1 includes first shell 11, and first shell 11 is internally provided with matches with the sliding of first shell 11
The first core 3 closed, is provided with for sealing the first core 3 with first shell 11 between the first core 3 and first shell 11
The first sealing ring 4；The first spring 5 and the first sliding sleeve 6 are successively arranged on first core 3, one end of the first sliding sleeve 6 is connected with
Second spring 8；Second connector 2 includes second shell 21, and second shell 21, which is internally provided with, to be fixedly connected with second shell 21
Second core 15 is provided with for sealing the second core 15 with second shell 21 between second core 15 and second shell 21
Second sealing ring 12, set setting third spring 17 and the second sliding sleeve 14, the second sliding sleeve 14 and the second core 15 on the second core 15
Between be provided with third sealing ring 13,14 one end of the second sliding sleeve is connect with third spring 17；First connector 1 and the second connector 2 connect
After connecing, the first core 3 is abutted with the second core 15, and first shell 11 is abutted with the second sliding sleeve 14, by pushing 1 He of the first connector
Second connector 2, the second core 15 pushes the first core 3 mobile to the rear end of first shell 11, while the first core 3 drives first
Sliding sleeve 6 is mobile to the rear end of first shell 11；First shell 11 pushes the second sliding sleeve 14 mobile to the end of second shell 21, this
When two connectors inside form the channel passed through for liquid.
It should be noted that hydraulic joint includes the first connector 1 and the second connector 2 being used cooperatively with the first connector 1；The
One connector 1 and the second connector 2 can each self-sealings；After the first connector 1 is connect with the second connector 2, the first core 3 and the second core
15 abut, while first shell 11 is abutted with the second sliding sleeve 14, by pushing the first connector 1 and the second connector 2, due to the second core
Body 15 is fixedly connected with second shell 21, therefore the second core 15 pushes the first core 3 mobile；First core 3 first is by squeezing
It presses the first spring 5 to move backward the first core 3, after the first core 3 and the contact of the first sliding sleeve 6, then drives the first sliding sleeve 6 one
It rises and moves backward, the first sliding sleeve 6 then moves backward the first sliding sleeve 6 by squeezing second spring 8, while the first sealing ring 4 is then
It is moved between the first core 3 and the first sliding sleeve 6；At this point, the first core 3 and the first sliding sleeve 6 are detached from first shell 11, the
The inside of one connector 1 then forms channel.Since first shell 11 is abutted with the second sliding sleeve 14, by pushing 1 He of the first connector
Second connector 2, therefore first shell 11 pushes the second sliding sleeve 14 to move backward, the second sliding sleeve 14 first is by squeezing third spring
17 move backward the second sliding sleeve 14, and the second sliding sleeve 14 is made to be detached from the second core 15, meanwhile, the second sealing ring 12 is moved to the
Between one shell 11 and second shell 21, third sealing ring 13 is moved between the second sliding sleeve 14 and third sliding sleeve 16, at this point,
The inside of second connector 2 forms channel.Therefore it is formed after the first connector 1 is connect with the second connector 2 and is led to for what liquid passed through
Road.When the first connector 1 and the second connector 2 separate, the first sliding sleeve 6 is squeezed by the elastic force of second spring 8, makes the first sliding sleeve
6 is mobile, while the elastic force of the first spring 5 squeezes the first core 3, keeps the first core 3 mobile, when the first sealing ring 4 is moved to
After between first core 3 and first shell 11, the first connector 1 is not completely separated also with the second connector 2, but the first connector 1 has been located
In sealing state.At the same time, the second sliding sleeve 14 forward slip under the elastic force of third spring 17, when the second sealing ring 12 moves
Move between the second sliding sleeve 14 and second shell 21, and third sealing ring 13 be moved to the second sliding sleeve 14 and the second core 15 it
Between after, the first connector 1 is not completely separated also with the second connector 2, but the second connector 2 has been in sealing state.Therefore when first connects
First 1 and second connector 2 be completely separated after, joint will not oil leak, have the advantages that oil-leakage-prevention.
In the present embodiment optinal plan, first shell 11 is internally provided with the first interstage sleeve 9 for stopping the first sliding sleeve 6,
The one end of first interstage sleeve 9 is connect with second spring 8；The first snap ring 7 is also connected on first interstage sleeve 9.
Specifically, the first sealing ring 4 is connected on the first core 3 when the first connector 1 and the second connector 2 are not connected to.
It should be noted that the end of the first interstage sleeve 9 is provided with the second snap ring 10.
In the present embodiment optinal plan, set setting third sliding sleeve 16 and the 4th spring 18, third sliding sleeve on the second core 15
16 one end are connect with the 4th spring 18.
Specifically, 16 other end of third sliding sleeve is contacted with the second core 15, top is contacted with the second sliding sleeve 14.
Further, second shell 21 is internally provided with the second interstage sleeve 19, and the second interstage sleeve 19 is connect with third spring 17.
It should be noted that the end of the second interstage sleeve 19 is provided with third snap ring 20.
In the present embodiment optinal plan, when the first connector 1 and the second connector 2 are not connected to, the edge and first of the first core 3
One end of shell 11 is concordant；The edge of second sliding sleeve 14 is concordant with one end of second shell 21.
Specifically, when the first connector 1 and the second connector 2 are not connected to, one end of the first sliding sleeve 6 and one end of first shell 11
Contact, one end of the second sliding sleeve 14 and the end thereof contacts of second shell 21.
Further, the end thereof contacts of one end of the first core 3 and the second core 15, and the of the end face of the first core 3
The end face diameter of two cores 15 is identical.
Further, the end thereof contacts of one end of first shell 11 and the second sliding sleeve 14, and the contact of first shell 11
The wall thickness of end face is identical as the wall thickness of contact face of the second sliding sleeve 14.
Working principle:
When the first connector 1 and the second connector 2 are in discrete state, the first sealing ring 4 in the first connector 1 is by the first core
Location sealing closes first shell 11 between body 3 and first shell 11, and the third sealing ring 13, second in the second connector 2 is close
Seal 12 forms sealing between the second core 15 and the second sliding sleeve 14 and the second sliding sleeve 14 and second shell 21 makes second to connect
First 2 closing；When the coaxial pressing under external force of the first connector 1 and the second connector 2, when pressing, can be carried out by fixing piece
Fixed, the second sealing ring 12 in the second connector 2, which slides into the first shell 11 of the first connector 1, connects the first connector 1 and second
Sealing is formed between first 2,11 front end face of first shell in the first connector 1 is contacted and pushed away with the second sliding sleeve 14 of the first connector 1
Dynamic second sliding sleeve 14 drives third sliding sleeve 16 to open the asphalt channel of the second connector 2, the second core 15 of the second connector 2 and
First core 3 of the first connector 1 contacts, and the first core 3 is pushed to be moved to the left, and drives the first sliding sleeve 6 compression second spring 8 will
Asphalt channel in first connector 1 is opened, so that externally closed internal path is formed in the first connector 1 and the second connector 2,
Guarantee passage of the hydraulic oil in connector.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments mean it is of the invention
Within the scope of and form different embodiments.For example, embodiment claimed is appointed in claims above
Meaning one of can in any combination mode come using.The information disclosed in the background technology section is intended only to deepen to this
The understanding of the general background technology of invention, and be not construed as recognizing or implying in any form that information composition has been ability
The prior art well known to field technique personnel.
Claims (10)
1. a kind of hydraulic joint characterized by comprising the first connector and what is be used cooperatively with first connector second connect
Head；
First connector includes first shell, and the first shell is internally provided with to be slidably matched with the first shell
One core is provided with for first core and the first shell is close between first core and the first shell
First sealing ring of envelope；The first spring and the first sliding sleeve, one end of first sliding sleeve are successively arranged on first core
It is connected with second spring；
Second connector includes second shell, and the second shell is internally provided be fixedly connected with the second shell
Two cores are provided with for second core and the second shell is close between second core and the second shell
Second sealing ring of envelope, set setting third spring and the second sliding sleeve, second sliding sleeve and described second on second core
Third sealing ring is provided between core, second sliding sleeve one end is connect with the third spring；
After first connector is connect with second connector, first core is abutted with second core, and described first
Shell is abutted with second sliding sleeve, and by pushing the first connector and the second connector, second core pushes first core
Body is mobile to the rear end of first shell, while first core drives the first sliding sleeve mobile to the rear end of first shell；It is described
First shell pushes second sliding sleeve mobile to the end of the second shell, is formed inside two connectors be used for liquid at this time
By channel.
2. hydraulic joint according to claim 1, which is characterized in that the first shell is internally provided with for stopping
The first interstage sleeve of the first sliding sleeve is stated, the one end of first interstage sleeve is connect with the second spring；
The first gear, which is put on, is also connected with the first snap ring.
3. hydraulic joint according to claim 1, which is characterized in that first connector is not connected to second connector
When, first sealing ring is connected on the first core.
4. hydraulic joint according to claim 1, which is characterized in that set setting third sliding sleeve and the on second core
Four springs, third sliding sleeve one end are connect with the 4th spring.
5. hydraulic joint according to claim 4, which is characterized in that the third sliding sleeve other end and second core
Contact, top is contacted with second sliding sleeve.
6. hydraulic joint according to claim 1, which is characterized in that the second shell is internally provided with the second interstage sleeve,
Second interstage sleeve is connect with the third spring.
7. hydraulic joint according to claim 1, which is characterized in that first connector is not connected to second connector
When, the edge of the first core is concordant with one end of the first shell；
The edge of second sliding sleeve is concordant with one end of the second shell.
8. hydraulic joint according to claim 1, which is characterized in that first connector is not connected to second connector
When, the end thereof contacts of one end of first sliding sleeve and the first shell, one end of second sliding sleeve and the second shell
The end thereof contacts of body.
9. hydraulic joint according to claim 1, which is characterized in that one end of first core and second core
End thereof contacts, and the end face diameter of second core of the end face of first core is identical.
10. -9 described in any item hydraulic joints according to claim 1, which is characterized in that one end of the first shell and institute
State the end thereof contacts of the second sliding sleeve, and the wall thickness of the contact face of the first shell and the contact face of second sliding sleeve
Wall thickness is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910041732.8A CN109538861A (en) | 2019-01-16 | 2019-01-16 | Hydraulic joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910041732.8A CN109538861A (en) | 2019-01-16 | 2019-01-16 | Hydraulic joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109538861A true CN109538861A (en) | 2019-03-29 |
Family
ID=65835581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910041732.8A Pending CN109538861A (en) | 2019-01-16 | 2019-01-16 | Hydraulic joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109538861A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0621430A2 (en) * | 1993-04-20 | 1994-10-26 | Voswinkel Kg | Hydraulic coupling |
| EP1707863A1 (en) * | 2005-03-30 | 2006-10-04 | Voswinkel KG | Coupling piece for a plug coupling for pressurized fluid |
| DE202006003300U1 (en) * | 2006-03-02 | 2007-07-05 | Voswinkel Kg | Coupling part for hydraulic insertion coupling has valve pushrod acting to create measured opening force against valve body |
| CN102705618A (en) * | 2012-06-15 | 2012-10-03 | 邹佰营 | Quick connector operated by utilizing pressure difference between connectors under high-pressure state |
| CN209340695U (en) * | 2019-01-16 | 2019-09-03 | 山西双环重工集团有限公司 | Hydraulic joint |
-
2019
- 2019-01-16 CN CN201910041732.8A patent/CN109538861A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0621430A2 (en) * | 1993-04-20 | 1994-10-26 | Voswinkel Kg | Hydraulic coupling |
| EP1707863A1 (en) * | 2005-03-30 | 2006-10-04 | Voswinkel KG | Coupling piece for a plug coupling for pressurized fluid |
| DE202006003300U1 (en) * | 2006-03-02 | 2007-07-05 | Voswinkel Kg | Coupling part for hydraulic insertion coupling has valve pushrod acting to create measured opening force against valve body |
| CN102705618A (en) * | 2012-06-15 | 2012-10-03 | 邹佰营 | Quick connector operated by utilizing pressure difference between connectors under high-pressure state |
| CN209340695U (en) * | 2019-01-16 | 2019-09-03 | 山西双环重工集团有限公司 | Hydraulic joint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105953008B (en) | Female connector and the rapid connector component for using the female connector | |
| CN209340695U (en) | Hydraulic joint | |
| CN203927176U (en) | Bell-and-spigot pipe | |
| CN104197136A (en) | Straight-plug type quick connector | |
| CN205745798U (en) | A kind of snap joint of push button | |
| CN105937677A (en) | Totally-closed maintenance-free threaded fitting | |
| CN109538861A (en) | Hydraulic joint | |
| CN205896501U (en) | Pipeline quick connect connector | |
| CN204062272U (en) | Directly-inserted quick quick coupling | |
| CN208281665U (en) | Pipeline connecting device and aero-engine connecting line | |
| CN201413916Y (en) | Radio frequency coaxial connector | |
| CN102242855A (en) | Heat insulation connecting device for low-temperature transmission lines | |
| CN205499388U (en) | A separate and proclaim oneself joint that is used for defeated oil line connection of external bellytank of aircraft and main fuel tank | |
| CN107917297B (en) | Low-leakage-rate and long-service-life bidirectional under-pressure plug quick disconnect device | |
| CN109780285A (en) | Plug sealing structure in high-pressure hydrogenation machine Pull breaking ualve | |
| CN201890889U (en) | Blast furnace blast sealing structure | |
| CN201225477Y (en) | Gas-liquid dual-purpose fast joint | |
| CN209385836U (en) | A kind of lined stainless steel machinery connection composite pipe | |
| CN103151642A (en) | Waterproof structure of plugging surface of waterproof socket | |
| CN103670327B (en) | A kind of level Four compression packer being applicable under High Temperature High Pressure execution conditions | |
| CN209638582U (en) | A kind of leakage-proof structure connected between oil pipe | |
| CN205101722U (en) | Smooth compact form tube coupling connects | |
| CN203201524U (en) | Self-balancing packer having diameter of 95mm and allowing cable to pass through | |
| CN205261087U (en) | Appearance meter connector that proclaimed oneself in area | |
| CN203431369U (en) | Pipe joint easy to disassemble and assemble |
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 |