CN203052046U - High temperature resisting rotating connector - Google Patents
High temperature resisting rotating connector Download PDFInfo
- Publication number
- CN203052046U CN203052046U CN 201320010468 CN201320010468U CN203052046U CN 203052046 U CN203052046 U CN 203052046U CN 201320010468 CN201320010468 CN 201320010468 CN 201320010468 U CN201320010468 U CN 201320010468U CN 203052046 U CN203052046 U CN 203052046U
- Authority
- CN
- China
- Prior art keywords
- mentioned
- swivel head
- mounting shell
- housing
- column
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Joints Allowing Movement (AREA)
Abstract
The utility model provides a high temperature resisting rotating connector which comprises a shell body, a rotating head, a compensation spring, a ball ring, a seal guide column ring and a return pipe. The compensation spring is arranged between the ball ring and the seal guide column ring. A boss is placed between the ball ring and the compensation spring. The compensation spring is tensioned between the boss and the seal guide column ring, wherein the seal guide column ring is arranged on a second end port of the shell body and is closely attached to the shell body and the rotating head. An installing ring which is arranged on the peripheral direction of a liquid flow channel is arranged on the side wall of the liquid flow channel in a protruding mode. One end surface of the ball ring is closely attached to the boss, the other end surface of the ball ring is closely attached to the installing ring, and an injection port is placed at a position between the installing ring and a second end portion of the shell body. The high temperature resisting rotating connector has the advantages that in the process of working, the compensation spring of the high temperature resisting rotating connector is completely isolated from a medium, and the problem that the function of the compensation spring is invalid caused by a fact that the medium in the shell body is contacted with the compensation spring and the compensation spring is affected by the temperature, acidity, alkalinity and other effects of the medium is avoided.
Description
Technical field
The utility model relates to a kind of swivel joint, and it is used for the conveying of medium between fixing part and the rotary part.
Background technique
To be flowing medium be input to connection seal arrangement the rotating equipment from static pipeline with high temperature resistant swivel joint, and it can be applicable to the equipment of various conveying high temperature, high rotating speed medium.As Fig. 1, traditional high temperature resistant swivel joint comprise housing 1 ', swivel head 2 ', counterbalance spring 3 ', the sealing guiding band of column 4 ', ball 5 ', seal ring 6 ', end cap 7 ', gland 8 ' and reflow pipe 9 ', this housing 1 ' be the opening-like column constructions in two ends, housing 1 ' in be provided with fluid passage 11 ', end cap 7 ' removably be located at housing 1 ' first end on, swivel head 2 ' be located at rotationally end cap 7 ' on, and swivel head 2 ' first end be located at housing 1 ' in, and swivel head 2 ' first end and housing ' between the sealing guiding band of column 4 ' seal by being set in swivel head 2 ' outer, this housing 1 ' the sealing guiding band of column 4 ' with housing 1 ' the second end end between the position offer with the inlet 12 of fluid passage 11 ' communicate ', this ball 5 ' be set in swivel head 2 ' first end outside, and swivel head 2 ' outer side wall on convex be in the sealing guiding band of column 4 ' and ball 5 ' between boss 21 ', this ball 5 ' with boss 21 ' between be provided with a pair of concavo-convex arc surface that cooperates, this ball 5 ' be clamped in boss 21 ' and end cap 7 ' between, counterbalance spring 3 ' be sheathed on rotationally swivel head 2 ' the first end end outside, and housing 1 ' the first end port be provided with inwardly convex with spring seat 13 ', counterbalance spring 3 ' be tensioned to spring seat 13 ' and the sealing guiding band of column 4 ' between, swivel head 2 ' second end stretch out end cap 7 ' outer, swivel head 2 ' be column structure, swivel head 2 ' in be provided with vertically the logical liquid passage 22 that extends ', this logical liquid passage 22 ' be positioned at fluid passage 11 ' locate to be provided with fluid-through port, gland 8 ' be sheathed on swivel head 2 ' second end outer and by screw 81 ' with end cap 7 ' affixed, and gland 8 ' and end cap 7 ' between seal ring 6 ' seal by being inlaid in end cap 7 ' interior, this seal ring 6 ' and be set in swivel head 2 ' second end outside, the logical liquid passage 22 of reflow pipe 9 ' be sheathed on ' in, and reflow pipe 9 ' and swivel head 2 ' between have spacing, this reflow pipe 9 ' first end stretch out this swivel head 2 ' first end outer and with housing 1 ' spring seat 13 ' be screwed together, this reflow pipe 9 ' second end stretch out swivel head 2 ' second end outside.
The high temperature resistant swivel joint of this kind structure, by this counterbalance spring 3 ' make ball 5 ' can be clamped in all the time boss 21 ' and end cap 7 ' between, make the sealing reliability of swivel joint preferable.Yet, counterbalance spring 3 ' be in fluid passage 11 ' in, counterbalance spring 3 ' long period of soaking is subject to the influences such as temperature, acidity, alkalescence of medium in medium like this, thus cause counterbalance spring 3 ' effect lost efficacy.
In view of this, the inventor furthers investigate the structure of high temperature resistant swivel joint, and this case produces thus.
The model utility content
The purpose of this utility model is to provide a kind of high temperature resistant swivel joint, and it solves in prior art because of counterbalance spring and contacts the problem that the temperature that is subjected to medium, acidity, alkalescence etc. influence the effect inefficacy that causes counterbalance spring with medium in the fluid passage.
The technological scheme that the utility model adopts is such: a kind of high temperature resistant swivel joint, comprise housing, swivel head, counterbalance spring, ball, the sealing guiding band of column and reflow pipe, be provided with fluid passage in the housing, and offer on this housing for extraneous medium and inject the interior inlet of this fluid passage, first end of this swivel head is located in first end of housing, second end of swivel head stretches out outside second end of housing, be provided with in the swivel head vertically and extend, and the logical liquid passage that communicates with fluid passage, should be connected with fluid passage by logical liquid passage, this reflow pipe is sheathed in this swivel head, and has spacing between reflow pipe and the swivel head, first end, first end outer and housing that first end of this reflow pipe stretches out this swivel head is screwed together, second end of this reflow pipe stretches out outside second end of this swivel head, this ball, the sealing guiding band of column and counterbalance spring all are sheathed on outside first end of this swivel head, convex with a boss on the outer side wall of this swivel head, this boss is provided with a pair of concavo-convex arc surface that cooperates with this ball; Above-mentioned counterbalance spring is between above-mentioned ball and the above-mentioned sealing guiding band of column, above-mentioned boss is between above-mentioned ball and the above-mentioned counterbalance spring, above-mentioned counterbalance spring is tensioned between above-mentioned boss and the above-mentioned sealing guiding band of column, the above-mentioned sealing guiding band of column is in the second end port of above-mentioned housing, and the outer side wall of the above-mentioned sealing guiding band of column is adjacent to mutually with the second end port madial wall of above-mentioned housing, the madial wall of the above-mentioned sealing guiding band of column is adjacent to mutually with the outer side wall of above-mentioned swivel head, convex with the installing ring that arranges along the circumferencial direction of aforesaid liquid runner on the sidewall of aforesaid liquid runner, one end face of above-mentioned ball is adjacent to mutually with above-mentioned boss, the other end of above-mentioned ball is adjacent to mutually with above-mentioned installing ring, and above-mentioned inlet is in the position between the first end end of above-mentioned installing ring and above-mentioned housing.
Above-mentioned housing comprises end cap, sealing cover and mounting shell, above-mentioned sealing cover is between above-mentioned end cap and the above-mentioned mounting shell, and above-mentioned end cap, first end of sealing cover and above-mentioned mounting shell by screw closure together, all seal by being sleeved on the outer seal washer of above-mentioned sealing cover between the first end end face of above-mentioned sealing cover and above-mentioned mounting shell and between above-mentioned end cap and the above-mentioned sealing cover, above-mentioned end cap, all offer the opening-like central shaft passage in two ends in above-mentioned sealing cover and the above-mentioned mounting shell, each above-mentioned central shaft passage forms the aforesaid liquid passage, above-mentioned inlet is opened on the above-mentioned end cap, the first end spiral shell of above-mentioned reflow pipe is contained in the above-mentioned end cap, first end of above-mentioned swivel head is in the above-mentioned mounting shell, second end of above-mentioned swivel head stretches out outside second end of above-mentioned mounting shell, convex with the bulge loop that stretches in the above-mentioned mounting shell on the above-mentioned sealing cover, this bulge loop is above-mentioned installing ring.
Above-mentioned mounting shell is positioned at above-mentioned counterbalance spring place and offers sight vane.
Above-mentioned sight vane is provided with several, and each above-mentioned sight vane is spaced apart along the circumferencial direction of above-mentioned mounting shell.
Be concaved with first on the exterior edge face of the second end end face of above-mentioned mounting shell and the above-mentioned sealing guiding band of column respectively cavity and the second installation cavity are installed, the above-mentioned first installation cavity and above-mentioned second is installed cavity and is connected, above-mentioned first installs the intrinsic spline catch of cavity internal lock, and an end of above-mentioned spline catch extends in the above-mentioned second installation cavity.
Above-mentioned spline catch is provided with several, and each above-mentioned spline catch evenly distributes at interval along the circumferencial direction of above-mentioned mounting shell, and above-mentioned first installs cavity installs cavity and the corresponding setting of above-mentioned spline catch with above-mentioned second.
Be provided with between above-mentioned counterbalance spring and the above-mentioned sealing guiding band of column and be set in the outer spring seat of above-mentioned swivel head, above-mentioned seat surface convexes with drive fit on the end face of above-mentioned counterbalance spring and is inserted in the ring that is locked in the above-mentioned counterbalance spring.
By adopting the aforementioned techniques scheme, high temperature resistant swivel joint of the present utility model, by being sealed and matched of ball and installing ring, being sealed and matched of sealing guiding band of column madial wall and swivel head outer side wall, reach sealing directional post outer side wall and being sealed and matched of second end of the housing madial wall and can constitute an airtight chamber, and counterbalance spring can be in this airtight chamber, inlet is opened in outside this airtight chamber, like this, when work counterbalance spring isolate fully with medium, avoided the interior medium of counterbalance spring and housing to contact and be subjected to the temperature of medium, acid, the problem that influences such as alkalescence cause the effect of counterbalance spring to lose efficacy; Because housing is made of end cap, sealing cover and mounting shell, and end cap, sealing cover and mounting shell be in the same place by screw closure, i.e. the split type structure of housing employing, and the person of being easy to use is to maintenance and the dismounting of each parts of swivel joint; Whether because mounting shell is positioned at the counterbalance spring place and offers sight vane, can be observed swivel joint inside by this sight vane like this has leakage phenomenon, so that user's on-call maintenance, thereby improved safety in utilization.
Description of drawings
Fig. 1 is the sectional view of the high temperature resistant swivel joint of prior art;
Fig. 2 is the sectional view of model utility.
Among the figure:
Housing 1 ' fluid passage 11 '
Inlet 12 ' spring seat 13 '
Swivel head 2 ' boss 21 '
Logical liquid passage 22 ' counterbalance spring 3 '
The sealing guiding band of column 4 ' ball 5 '
Seal ring 6 ' end cap 7 '
Gland 8 ' screw 81 '
Reflow pipe 9 '
Housing 1 end cap 11
Inlet 111 sealing covers 12
Bulge loop 121 mounting shells 13
Sight vane 131 swivel heads 2
Logical liquid passage 21 boss 22
The sealing guiding band of column 5 reflow pipes 6
Seal washer 7 spline catch 8
Airtight chamber's 100 spring seats 9
Embodiment
High temperature resistant swivel joint of the present utility model, as shown in Figure 2, comprise housing 1, swivel head 2, counterbalance spring 3, ball 4, the sealing guiding band of column 5 and reflow pipe 6, be provided with fluid passage in the housing 1, this housing comprises end cap 11, sealing cover 12 and mounting shell 13, sealing cover 12 is between end cap 11 and the mounting shell 13, and end cap 11, sealing cover 12 is locked together in by the screw (not shown) with the left end of mounting shell 13, all seal by being sleeved on sealing cover 12 outer seal washers 7 between the left end end face of the right side of sealing cover 12 and mounting shell 13 and between the left side of the left side of end cap 11 and sealing cover 12, the left side of sealing cover 12, convex with respectively for seal washer 7 on the right both ends of the surface and be sleeved on outer installation bulge loop, and the installation bulge loop on sealing cover 12 right sides is provided with the bulge loop 121 that extends in the mounting shell 13 left end ports, this end cap 11, all offer the opening-like central shaft passage in two ends in sealing cover 12 and the mounting shell 13, each central shaft passage forms described fluid passage, offer the interior inlet 111 of central shaft passage that injects end cap 11 for extraneous medium on this end cap 11, the left end of this swivel head 2 is in the mounting shell 13, the right-hand member of swivel head 2 stretches out outside the right-hand member of mounting shell 13, be provided with in the swivel head 2 vertically and extend, and the logical liquid passage 21 that communicates with fluid passage, this reflow pipe 6 is sheathed in this swivel head 2, and has spacing between reflow pipe 6 and the swivel head 2, the left end of this reflow pipe 6 passes outside the left end of swivel head 2, and the central shaft passage that passes sealing cover 12 is to the central shaft passage of end cap 11, and be screwed together with the left end of end cap 11, the right-hand member of this reflow pipe 6 stretches out outside the right-hand member of this swivel head 2, this counterbalance spring 3, ball 4 and the sealing guiding band of column 5 all are sheathed on outside the left end of this swivel head 2, counterbalance spring 3 is between ball 4 and the sealing guiding band of column 5, the sealing guiding band of column 5 is in the right-hand member port of mounting shell 13, and the outer side wall of the sealing guiding band of column 5 is adjacent to mutually with the right-hand member port madial wall of mounting shell 12, the madial wall of the sealing guiding band of column 5 is adjacent to mutually with the outer side wall of swivel head 2, convex with the boss 22 that is between ball 4 and the counterbalance spring 3 on the left end outer side wall of this swivel head 2, this boss 22 is provided with a pair of concavo-convex arc surface that cooperates with the right side of this ball 4, this counterbalance spring 3 is tensioned between boss 22 and the sealing guiding band of column 5, the right side of this ball 4 is adjacent to mutually with boss 22, the left side of ball 4 is adjacent to mutually with the end face of bulge loop 121, this mounting shell 13 is positioned at counterbalance spring 3 places and offers sight vane 131, this sight vane 131 is provided with several, and each sight vane 131 is spaced apart along the circumferencial direction of mounting shell 13.
High temperature resistant swivel joint of the present utility model, be adjacent to mutually by the end face of ball 4 left sides with bulge loop 121, the sealing guiding band of column 5 madial walls are adjacent to mutually with swivel head 2 outer side walls, and being adjacent to mutually of sealing directional post 5 outer side walls and mounting shell 13 right-hand member madial walls, make bulge loop 121 and the sealing guiding band of column 5 can constitute an airtight chamber 100, and counterbalance spring 3 can be in this airtight chamber 100, inlet 111 is opened in outside this airtight chamber 100, like this, when work counterbalance spring 3 isolate fully with medium, avoided counterbalance spring 3 and housing 1 interior medium to contact and be subjected to the temperature of medium, acid, the problem that influences such as alkalescence cause the effect of counterbalance spring to lose efficacy; Housing 1 adopts split type structure simultaneously, and the person of being easy to use is to maintenance and the dismounting of each parts of swivel joint.Whether offer sight vane 13 owing to mounting shell 13 is positioned at counterbalance spring 3 places again, can be observed swivel joint inside by this sight vane 13 like this has leakage phenomenon, so that user's on-call maintenance, thereby improved safety in utilization.
In the utility model, can be concaved with first on the exterior edge face of the right-hand member end face of mounting shell 13 and the sealing guiding band of column 5 respectively installs cavity (not shown) and second the cavity (not shown) is installed, the first installation cavity and second is installed cavity and is connected, and first installs the intrinsic spline catch 8 of cavity internal lock, and an end of spline catch 8 extends to second of the sealing guiding band of column 5 and installs in the cavity, this spline catch 8 is provided with and is equipped with several, each spline catch 8 evenly distributes at interval along the circumferencial direction of mounting shell 13, and first installs cavity and second installation cavity and the 8 corresponding settings of spline catch; Like this, can limit the sealing guiding band of column 5 by this spline catch 8 and rotate, make the sealing guiding band of column 5 can the together rotation with the rotation of swivel head 2, reduce the friction torque of the sealing guiding band of column 5 greatly, effectively the protection sealing guiding band of column 5.
In the utility model, also can between counterbalance spring 3 and sealing directional post 5, a spring seat 9 that is sheathed on outside the swivel head 2 be set, this spring seat 9 is adjacent to setting mutually with sealing directional post 5, this counterbalance spring 3 is tensioned between this spring seat 9 and the bulge loop 22, and spring seat 9 convexes with drive fit on the end face of counterbalance spring 3 and is inserted in being locked ring 91 in the counterbalance spring 3, like this, make the installation of counterbalance spring 3 comparatively firm by this ring 91 that is locked.
Above-described embodiment and graphic and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field all should be considered as not breaking away from patent category of the present utility model to its suitable variation or modification of doing.
Claims (7)
1. high temperature resistant swivel joint, comprise housing, swivel head, counterbalance spring, ball, the sealing guiding band of column and reflow pipe, be provided with fluid passage in the housing, and offer on this housing for extraneous medium and inject the interior inlet of this fluid passage, first end of this swivel head is located in first end of housing, second end of swivel head stretches out outside second end of housing, be provided with in the swivel head vertically and extend, and the logical liquid passage that communicates with fluid passage, should be connected with fluid passage by logical liquid passage, this reflow pipe is sheathed in this swivel head, and has spacing between reflow pipe and the swivel head, first end, first end outer and housing that first end of this reflow pipe stretches out this swivel head is screwed together, second end of this reflow pipe stretches out outside second end of this swivel head, this ball, the sealing guiding band of column and counterbalance spring all are sheathed on outside first end of this swivel head, convex with a boss on the outer side wall of this swivel head, and this boss is provided with a pair of concavo-convex arc surface that cooperates with this ball; It is characterized in that: above-mentioned counterbalance spring is between above-mentioned ball and the above-mentioned sealing guiding band of column, above-mentioned boss is between above-mentioned ball and the above-mentioned counterbalance spring, above-mentioned counterbalance spring is tensioned between above-mentioned boss and the above-mentioned sealing guiding band of column, the above-mentioned sealing guiding band of column is in the second end port of above-mentioned housing, and the outer side wall of the above-mentioned sealing guiding band of column is adjacent to mutually with the second end port madial wall of above-mentioned housing, the madial wall of the above-mentioned sealing guiding band of column is adjacent to mutually with the outer side wall of above-mentioned swivel head, convex with the installing ring that arranges along the circumferencial direction of aforesaid liquid runner on the sidewall of aforesaid liquid runner, one end face of above-mentioned ball is adjacent to mutually with above-mentioned boss, the other end of above-mentioned ball is adjacent to mutually with above-mentioned installing ring, and above-mentioned inlet is in the position between the first end end of above-mentioned installing ring and above-mentioned housing.
2. high temperature resistant swivel joint according to claim 1, it is characterized in that: above-mentioned housing comprises end cap, sealing cover and mounting shell, above-mentioned sealing cover is between above-mentioned end cap and the above-mentioned mounting shell, and above-mentioned end cap, first end of sealing cover and above-mentioned mounting shell by screw closure together, all seal by being sleeved on the outer seal washer of above-mentioned sealing cover between the first end end face of above-mentioned sealing cover and above-mentioned mounting shell and between above-mentioned end cap and the above-mentioned sealing cover, above-mentioned end cap, all offer the opening-like central shaft passage in two ends in above-mentioned sealing cover and the above-mentioned mounting shell, each above-mentioned central shaft passage forms the aforesaid liquid passage, above-mentioned inlet is opened on the above-mentioned end cap, the first end spiral shell of above-mentioned reflow pipe is contained in the above-mentioned end cap, first end of above-mentioned swivel head is in the above-mentioned mounting shell, second end of above-mentioned swivel head stretches out outside second end of above-mentioned mounting shell, convex with the bulge loop that stretches in the above-mentioned mounting shell on the above-mentioned sealing cover, this bulge loop is above-mentioned installing ring.
3. high temperature resistant swivel joint according to claim 2, it is characterized in that: above-mentioned mounting shell is positioned at above-mentioned counterbalance spring place and offers sight vane.
4. high temperature resistant swivel joint according to claim 3, it is characterized in that: above-mentioned sight vane is provided with several, and each above-mentioned sight vane is spaced apart along the circumferencial direction of above-mentioned mounting shell.
5. high temperature resistant swivel joint according to claim 2, it is characterized in that: be concaved with first on the exterior edge face of the second end end face of above-mentioned mounting shell and the above-mentioned sealing guiding band of column respectively cavity and the second installation cavity are installed, the above-mentioned first installation cavity and above-mentioned second is installed cavity and is connected, above-mentioned first installs the intrinsic spline catch of cavity internal lock, and an end of above-mentioned spline catch extends in the above-mentioned second installation cavity.
6. high temperature resistant swivel joint according to claim 5, it is characterized in that: above-mentioned spline catch is provided with several, each above-mentioned spline catch evenly distributes at interval along the circumferencial direction of above-mentioned mounting shell, and above-mentioned first installs cavity installs cavity and the corresponding setting of above-mentioned spline catch with above-mentioned second.
7. high temperature resistant swivel joint according to claim 1, it is characterized in that: be provided with between above-mentioned counterbalance spring and the above-mentioned sealing guiding band of column and be set in the outer spring seat of above-mentioned swivel head, above-mentioned seat surface convexes with drive fit on the end face of above-mentioned counterbalance spring and is inserted in the ring that is locked in the above-mentioned counterbalance spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320010468 CN203052046U (en) | 2013-01-09 | 2013-01-09 | High temperature resisting rotating connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320010468 CN203052046U (en) | 2013-01-09 | 2013-01-09 | High temperature resisting rotating connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203052046U true CN203052046U (en) | 2013-07-10 |
Family
ID=48734999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320010468 Expired - Lifetime CN203052046U (en) | 2013-01-09 | 2013-01-09 | High temperature resisting rotating connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203052046U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672245A (en) * | 2013-12-10 | 2014-03-26 | 江苏腾旋科技股份有限公司 | High-speed rotating connector for corrugated paper machine |
| CN114576452A (en) * | 2022-03-23 | 2022-06-03 | 常熟理工学院 | Detachable rotary joint |
| CN115218051A (en) * | 2022-08-11 | 2022-10-21 | 温州金业气动科技有限公司 | High-speed rotary joint |
-
2013
- 2013-01-09 CN CN 201320010468 patent/CN203052046U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672245A (en) * | 2013-12-10 | 2014-03-26 | 江苏腾旋科技股份有限公司 | High-speed rotating connector for corrugated paper machine |
| CN114576452A (en) * | 2022-03-23 | 2022-06-03 | 常熟理工学院 | Detachable rotary joint |
| CN115218051A (en) * | 2022-08-11 | 2022-10-21 | 温州金业气动科技有限公司 | High-speed rotary joint |
| CN115218051B (en) * | 2022-08-11 | 2024-02-02 | 温州金业气动科技有限公司 | High-speed rotary joint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203052046U (en) | High temperature resisting rotating connector | |
| WO2010122299A8 (en) | Pump with a resilient seal | |
| CN206592591U (en) | A kind of low pressure leakage-preventing check valve | |
| MY169872A (en) | Rotary valve | |
| JP2018115691A5 (en) | ||
| CN203961942U (en) | A kind of underground gasification gas injection shower nozzle | |
| WO2019057010A1 (en) | Periodic water outlet mechanism, periodic water outlet shower and periodic water outlet method | |
| CN203463845U (en) | Multi-pass rotary surface seal rotary joint | |
| CN104141798B (en) | A kind of balanced type break valve | |
| CN207599215U (en) | A kind of ready-packaged joint for pipe | |
| CN203286096U (en) | Quick installation type pulse electromagnetic valve | |
| CN102364050B (en) | Foam launching device | |
| CN203797047U (en) | One-piece ball valve | |
| CN203463844U (en) | Reverse sphere type rotating joint with external spring | |
| CN206912287U (en) | A kind of radial drilling machine | |
| CN203516768U (en) | Handle butterfly valve | |
| CN202852086U (en) | Double-valve-clack muffle check valve | |
| CN102705228B (en) | Double-support rotor pump with parallel sealing surfaces | |
| CN205605840U (en) | Water faucet valve core | |
| CN110053867B (en) | Bucket | |
| CN103133730B (en) | A kind of one-way valve | |
| CN204083591U (en) | A kind of RX type swivel joint of improvement | |
| CN203189811U (en) | One-way valve | |
| CN102860805B (en) | Water supply assembly and dish-washing machine | |
| CN204745354U (en) | Novel infusion syringe needle and hose connection structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |