CN216069948U - Exchange device for fluid circulation in standing and rotating processes - Google Patents
Exchange device for fluid circulation in standing and rotating processes Download PDFInfo
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- CN216069948U CN216069948U CN202122787358.1U CN202122787358U CN216069948U CN 216069948 U CN216069948 U CN 216069948U CN 202122787358 U CN202122787358 U CN 202122787358U CN 216069948 U CN216069948 U CN 216069948U
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- 239000012530 fluid Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000003247 decreasing effect Effects 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 230000000284 resting effect Effects 0.000 claims 5
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 239000013585 weight reducing agent Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000476 body water Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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Abstract
The utility model relates to a circulation exchange device for liquid, gas and other substances, in particular to an exchange device for fluid circulation in the process of standing and rotating. The problem of circulation in the standing and rotating process is solved. The inner shaft is provided with N circumferential bulges, N is a positive integer greater than 2, and the end faces of two ends of the inner shaft are the circumferential bulges; the circumferential bulge on the end face at the outermost edge is provided with N-1 round holes 5, threads are arranged in the round holes on the circumferential bulge, the circumferential bulge on the end face at the other end is not provided with a round hole, and the number of the round holes arranged from the circumferential bulge at the most to the circumferential bulge at the other end is gradually decreased by one; communicating pipes are screwed in the circular holes of the circumferential bulges at the end faces at the outermost edges, each communicating pipe corresponds to one circumferential groove, the circumferential bulges at the two ends are sleeved with bearings, oil seals are arranged on the inner sides of the circumferential bulges, the circumferential bulge in the middle of the inner shaft is only provided with the oil seal, and the inner shaft is integrally assembled in the outer sleeve. Effectively solves the problem of realizing the circular exchange of the fluid in the standing and rotating processes.
Description
Technical Field
The utility model relates to a circulation exchange device for liquid, gas and other substances, in particular to an exchange device for fluid circulation in the process of standing and rotating.
Background
The common equipment comprises a fixed part and a rotating part, wherein the rotating part sometimes needs to circulate liquid such as oil or water or gas for use, but at present, the rotating part cannot well solve the exchange problem in the rotating process.
Just as most freight trains adopt to brake block and brake drum cooperation to get up and brake, be furnished with the louvre on the wheel hub and dispel the heat, current meeting installs the trickle case additional by oneself and sprays the cooling to tire wheel hub, can lead to the road surface to leave a large amount of water like this, have the potential safety hazard to other vehicles, the water tank is watered before the downhill path at every turn simultaneously, the water of spraying the cooling can not be retrieved and directly just has been discharged away, also can increase driving cost like this. The traffic accidents caused by high brake temperature are many every year on a long downhill road, the existing brake water spraying system is characterized in that water is sprayed on a brake drum to cool, but the water flows to a road, the heat dissipation effect is not ideal, the road surface is wet and slippery when a plurality of vehicles exist, great potential safety hazards are caused to the vehicles running on the road, and meanwhile, the road surface is damaged. However, the problem now exists that the water from the fixed part of the vehicle is circulated to the leading wheel instead of being sprayed directly onto the hub, and an exchange device is needed to realize the water exchange between the hub and the vehicle body.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides the exchange device which can realize the circulation exchange of fluid between the fixed equipment and the rotating equipment, has high exchange efficiency and well solves the problem of gas or liquid circulation in the standing and rotating processes.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the exchange device for fluid circulation in the standing and rotating processes comprises an outer sleeve and a cylindrical inner shaft, wherein N circumferential protrusions are arranged on the inner shaft, N is a positive integer greater than 2, the end faces of two ends of the inner shaft are both circumferential protrusions, the circumferential protrusions and the inner shaft are integrally formed, and two adjacent circumferential protrusions form a circumferential groove; the circumference of the end face at the most edge is provided with N-1 round holes, threads are arranged in the round holes on the circumference of the end face at the most edge, the circumference of the end face at the other end is not provided with round holes, and the number of the round holes from the circumference of the most edge to the circumference of the other end is gradually decreased by one.
Communicating pipes are screwed in the circular holes of the circumferential bulges on the end surface at the outermost edge, each communicating pipe corresponds to one circumferential groove, and the communicating pipes sequentially penetrate through the circular holes on the circumferential bulges between the corresponding circumferential grooves and the circumferential bulges on the end surface at the outermost edge; the circumference bulges at the two ends are sleeved with bearings, the inner sides of the circumference bulges are provided with oil seals, the circumference bulge in the middle of the inner shaft is only provided with the oil seals, and the inner shaft is integrally assembled in the outer sleeve.
The communicating pipe extends out of the circumferential bulge of the end face at the outermost edge and is provided with threads, the threads are provided with a water nozzle, the outer sleeve is provided with N-1 outer circular holes, and each outer circular hole corresponds to one circumferential groove.
The inner shaft is characterized in that a plurality of threaded holes are formed in the circumferential protrusion on the end face of the other end of the inner shaft, one circumferential protrusion in the inner shaft is not provided with a round hole, so that the inner shaft is divided into two areas, the number of the threaded holes in the circumferential protrusion on the end face of one side is consistent with that of the corresponding circumferential grooves, and each circumference corresponds to one communicating pipe.
More preferred technical scheme, interior axle one end or both ends are equipped with the screw hole. The threaded hole is arranged at one end of the outer side after installation, so that a bolt can be screwed in during disassembly and assembly, the whole exchange device can be conveniently controlled during disassembly and assembly, and the bolt can be conveniently pulled out during disassembly and assembly after being screwed in; the threaded hole on the inner side is convenient for being directly installed on the reserved threaded rod during installation.
According to the technical scheme, the circumference protrusion on the end face of the other end of the inner shaft is provided with a plurality of threaded holes, one circumference protrusion in the inner shaft is not provided with a round hole so as to be divided into two areas, the number of the threaded holes in the circumference protrusion on the end face of the single side is consistent with that of the corresponding circumference grooves, and each circumference corresponds to one communicating pipe. The exchange device is divided into a left cavity and a right cavity through a sealed circumference bulge in the middle, and meanwhile, the circumference bulges at the end surfaces of the two ends are all provided with communicating pipes for passing in and out, so that the exchange of fluid circulation can be realized at the two ends, and different exchange requirements are met. Meanwhile, the length of the communicating pipe is shortened, and the self weight reduction can be realized.
According to a more preferable technical scheme, the inner shaft is provided with 3 circumferential bulges, the inner shaft and the circumferential bulges are separated, the inner shaft is divided into four stages of different inner diameters, the inner diameter of the second stage is the thickest from left to right, the inner diameters of the first stage and the third stage are both smaller than the inner diameter of the second stage, and the inner diameter of the fourth stage is smaller than the inner diameter of the third stage; the middle of the circumferential bulge is provided with a mounting hole, the side wall of the circumferential bulge is provided with a groove, the inner diameter of the mounting hole of the left circumferential bulge is matched with the inner diameter of the first stage, the inner diameter of the mounting hole of the middle circumferential bulge is matched with the inner diameter of the third stage, and the inner diameter of the mounting hole of the right circumferential bulge is matched with the inner diameter of the fourth stage; a circumferential boss is arranged inwards on the outer sleeve, and the width of the circumferential boss is consistent with that of the circumferential groove on the left side; the edge outside left side circumference arch and right side circumference arch is equipped with the snap ring groove, and the inboard corresponding position of overcoat is equipped with the snap ring groove, and the inboard corresponding right side circumference recess both ends edge of overcoat is equipped with the snap ring groove respectively, all is equipped with the snap ring that matches in the snap ring groove.
The utility model has the following beneficial effects: the bearing is arranged between the outer sleeve and the inner shaft, so that the outer sleeve or the inner shaft is arranged at the standing part, the inner shaft or the outer sleeve is arranged at the rotating part, the relative standing with the rotating part is realized, and simultaneously, the fluid circulation can still be realized in the rotating process of the bearing by utilizing the self-fluidity of the fluid. The circulating exchange of the fluid in the standing and rotating processes is effectively realized, the whole exchange device is light in weight, and no overlarge burden is increased.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the inner shaft of the present invention.
Fig. 3 is a schematic view of a communication pipe of the present invention.
Fig. 4 is a cross-sectional view of a double circumferential groove of the present invention.
Fig. 5 is a schematic diagram of the utility model with two-way water inlet and outlet.
Fig. 6 is a cross-sectional view of the inner shaft of the present invention provided with a mounting hole.
Fig. 7 is a cross-sectional view of the inner shaft of the present invention with mounting holes and bi-directional water inlet and outlet.
In the figure: the outer sleeve 1, the inner shaft 2, the first-stage inner diameter 21, the second-stage inner diameter 22, the third-stage inner diameter 23, the fourth-stage inner diameter 24, the circumferential bulge 3, the left circumferential bulge 31, the middle circumferential bulge 32, the right circumferential bulge 33, the circumferential groove 4, the circular hole 5, the outer circular hole 6, the communicating pipe 7, the water nozzle 71, the bearing 8, the oil seal 9, the threaded hole 10, the circumferential boss 11 and the clamping ring groove 12.
Detailed Description
The utility model is further illustrated with reference to the following figures and examples.
In which like parts are designated by like reference numerals. It is noted that the terms "front", "back", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component, and the drawings are in greatly simplified form and employ non-precise ratios, merely for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention.
In the following description, for purposes of clarity, not all features of an actual implementation are described, well-known functions or constructions are not described in detail since they would obscure the utility model with unnecessary detail, it being understood that in the development of any actual embodiment, numerous implementation details must be set forth in order to achieve the developer's specific goals, such as compliance with system-related and business-related constraints, changing from one implementation to another, and it being recognized that such development effort might be complex and time consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art.
Example 1
As shown in fig. 1 and 2 (a plane structure is limited in fig. 1, and the other two communicating pipes are not shown), the exchange device for fluid circulation during standing and rotating comprises an outer sleeve 1 and a cylindrical inner shaft 2, wherein N circumferential protrusions 3 are arranged on the inner shaft 2, N is a positive integer greater than 2, N is 5 in fig. 1, the end surfaces of two ends of the inner shaft 2 are both the circumferential protrusions 3, the circumferential protrusions 3 and the inner shaft 2 are integrally formed, and two adjacent circumferential protrusions 3 form a circumferential groove 4; the circumferential bulge 3 on the end face at the most edge is provided with N-1 round holes 5, threads are arranged in the round holes on the circumferential bulge, the circumferential bulge 3 on the end face at the other end is not provided with a round hole, and the number of the round holes 5 arranged from the circumferential bulge 3 at the most edge to the circumferential bulge 3 at the other end is gradually decreased by one.
Communicating pipes 7 are screwed in the circular holes 5 of the circumferential protrusions 3 on the end face at the outermost edge, each communicating pipe 7 corresponds to one circumferential groove 4, and the communicating pipes 7 sequentially penetrate through the circular holes 5 on the circumferential protrusions between the corresponding circumferential grooves 4 and the circumferential protrusions on the end face at the outermost edge; the circumference bulges 3 at the two ends are sleeved with bearings 8, the inner sides of the circumference bulges are provided with oil seals 9, the circumference bulge in the middle of the inner shaft is only provided with the oil seals 9, and the inner shaft is integrally assembled in the outer sleeve.
As shown in fig. 3, the communicating pipe 7 extends out of the circumferential protrusion 3 of the end face of the outermost edge and is provided with a thread, a water nozzle 71 is screwed on the thread, N-1 outer circular holes 6 are arranged on the outer sleeve, and each outer circular hole 6 corresponds to one circumferential groove 4.
One end or two ends of the inner shaft 1 are provided with threaded holes 10. The threaded hole is arranged at one end of the outer side after installation, so that a bolt can be screwed in during disassembly and assembly, the whole exchange device can be conveniently controlled during disassembly and assembly, and the bolt can be conveniently pulled out during disassembly and assembly after being screwed in; the threaded hole on the inner side is convenient for being directly installed on the reserved threaded rod during installation.
Correspondingly, the non-driving shaft is arranged on the wheel hub, the non-driving shaft does not rotate, but the wheel hub rotates around the non-driving shaft. The inner shaft is fixed on a non-driving shaft which does not rotate, the outer sleeve is fixed on the hub through the bracket, the brake disc matched with the wheel is hollow, the brake disc can be connected into the inner shaft through a circular hole pipeline on the outer sleeve, and the inner shaft can be screwed on a threaded hole reserved on the non-driving shaft through a water nozzle to realize the fixing function and the water exchange function. Thus, the inner shaft is fixed to the non-driving shaft, and the outer sleeve rotates synchronously with the hub to be relatively static.
Water enters the corresponding circumference groove water sump from the water tank of the automobile body through the communicating pipe on the inner shaft circumference protrusion, enters the brake disc through the pipeline from the round hole on the circumference groove corresponding outer sleeve, and after circulation, water enters the other circumference groove water sump through the other round hole on the outer sleeve from the other pipeline of the brake disc, and then returns to the vehicle-mounted water tank through the other communicating pipe, so that the multi-group circulation communication distribution can be realized according to actual needs.
Example 2
As shown in fig. 4, the embodiment is different from embodiment 1 in that: the inner shaft is provided with 3 circumferential protrusions 3, the inner shaft 2 and the circumferential protrusions 3 are separated, the inner shaft 2 is divided into four stages of different inner diameters, the second-stage inner diameter 22 is the thickest from left to right, the first-stage inner diameter 21 and the third-stage inner diameter 23 are both smaller than the second-stage inner diameter 22, and the fourth-stage inner diameter 24 is smaller than the third-stage inner diameter 23; the middle of the circumferential bulge 3 is provided with a mounting hole and the side wall is provided with a groove. The grooves are formed in the side wall, so that the weight of the circumferential protrusion can be effectively reduced, the self weight of the circumferential protrusion is reduced, the volume of the circumferential groove can be expanded, and the capacity exchange amount is increased. The inner diameter of a mounting hole of the left circumferential bulge 31 is matched with the inner diameter of the first stage, the inner diameter of a mounting hole of the middle circumferential bulge 32 is matched with the inner diameter of the third stage 23, and the inner diameter of a mounting hole of the right circumferential bulge 33 is matched with the inner diameter of the fourth stage; the outer sleeve 1 is internally provided with a circumferential boss 11, and the width of the circumferential boss 11 is consistent with that of the circumferential groove on the left side; the edge in the left side circumference arch 21 and the protruding 23 outside of right side circumference is equipped with snap ring groove 12, and 1 inboard corresponding positions of overcoat are equipped with snap ring groove 12, and 1 inboard corresponding right side circumference recess both ends edge of overcoat is equipped with snap ring groove 12 respectively, all is equipped with the snap ring of matching in the snap ring groove 12. The side wall of the circumferential bulge 3 is provided with a groove. The grooves are formed in the side wall, so that the weight of the circumferential protrusion can be effectively reduced, the self weight of the circumferential protrusion is reduced, the volume of the circumferential groove can be expanded, and the capacity exchange amount is increased.
Correspondingly mounted on the wheel hub drive shaft is that the drive wheel hub is driven to rotate together, but the truck frame itself is relatively stationary. A fixing support is vertically hung from the body of the truck, an inner shaft is fixed on the fixing support, an outer sleeve is fixed on a hub or a driving shaft through the support, a brake disc matched with a wheel is hollow, the brake disc can be connected into the inner shaft through a circular hole pipeline on the outer sleeve, the inner shaft can be screwed on a reserved threaded hole of the fixing support through a water nozzle, and the pipeline on the inner shaft is communicated with a body water tank along the fixing support, so that the fixing effect and the water exchange effect are realized. Thus, the inner shaft and the fixed bracket are fixed, and the outer sleeve synchronously rotates along with the hub and the driving shaft so as to be relatively static.
Example 3
As shown in fig. 5, the embodiment is different from embodiment 2 in that: the end face circumferential protrusion 3 at the other end of the inner shaft is provided with a plurality of round holes, one of the circumferential protrusions in the inner shaft is divided into two areas without a round hole, the number of the round holes protruding on the end face circumferential surface at one side is consistent with that of the corresponding circumferential grooves, and each circumferential groove corresponds to one communicating pipe. The circumferential bulge 3 and the inner shaft 2 can be unsealed and combined, the exchange device is divided into a left cavity and a right cavity through the middle sealed circumferential bulge, and meanwhile, the circumferential bulges on the end surfaces of the two ends are provided with communicating pipes for passing in and out, so that the exchange of fluid circulation can be realized at the two ends, and different exchange requirements are met. Meanwhile, the length of the communicating pipe is shortened, and the self weight reduction can be realized. The circulating communication of fluids such as water, oil, gas and the like at the standing part and the rotating part can be well realized.
Example 4
As shown in fig. 6, the embodiment is different from embodiment 2 in that: the inner shaft 2 is hollow and provided with a through mounting hole 13. The exchanging device can be sleeved on the axle, the inner shaft can be fixed on the axle and can not rotate, and the outer sleeve can still rotate, so that the inner shaft can not rotate and the outer sleeve can rotate.
Example 5
As shown in fig. 7, the embodiment is different from embodiment 4 in that: the end face circumferential protrusion 3 at the other end of the inner shaft is provided with a plurality of round holes, one of the circumferential protrusions in the inner shaft is divided into two areas without a round hole, the number of the round holes protruding on the end face circumferential surface at one side is consistent with that of the corresponding circumferential grooves, and each circumferential groove corresponds to one communicating pipe. The circumferential bulge 3 and the inner shaft 2 can be unsealed and combined, the exchange device is divided into a left cavity and a right cavity through the middle sealed circumferential bulge, and meanwhile, the circumferential bulges on the end surfaces of the two ends are provided with communicating pipes for passing in and out, so that the exchange of fluid circulation can be realized at the two ends, and different exchange requirements are met. Meanwhile, the length of the communicating pipe is shortened, and the self weight reduction can be realized. Therefore, the circulation communication of fluids such as water, oil and gas between the static part and the rotating part is well realized.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
Claims (7)
1. Exchange device that is used for fluid circulation among the process of stewing and rotating, its characterized in that: the inner shaft is provided with N circumferential protrusions, N is a positive integer greater than 2, the end faces of two ends of the inner shaft are the circumferential protrusions, the circumferential protrusions and the inner shaft are integrally formed, and two adjacent circumferential protrusions form a circumferential groove; the circumferential bulge on the end face at the outermost edge is provided with N-1 round holes, threads are arranged in the round holes on the circumferential bulge, the circumferential bulge on the end face at the other end is not provided with a round hole, and the number of the round holes from the circumferential bulge at the most to the circumferential bulge at the other end is gradually decreased by one;
communicating pipes are screwed in the circular holes of the circumferential bulges on the end surface at the outermost edge, each communicating pipe corresponds to one circumferential groove, and the communicating pipes sequentially penetrate through the circular holes on the circumferential bulges between the corresponding circumferential grooves and the circumferential bulges on the end surface at the outermost edge; the circumference bulges at the two ends are sleeved with bearings, the inner sides of the circumference bulges are provided with oil seals, the circumference bulge in the middle of the inner shaft is only provided with the oil seals, and the inner shaft is integrally assembled in the outer sleeve; the communicating pipe extends out of the circumferential bulge of the end face at the outermost edge and is provided with threads, the threads are provided with a water nozzle, the outer sleeve is provided with N-1 outer circular holes, and each outer circular hole corresponds to one circumferential groove.
2. The exchange device for fluid circulation during resting and rotating of claim 1, wherein: the inner shaft is provided with 3 circumferential bulges, the inner shaft and the circumferential bulges are separated, the inner shaft is divided into four stages of different inner diameters, the inner diameter of the second stage is the thickest from left to right, the inner diameters of the first stage and the third stage are both smaller than the inner diameter of the second stage, and the inner diameter of the fourth stage is smaller than the inner diameter of the third stage; the middle of the circumferential bulge is provided with a mounting hole, the side wall of the circumferential bulge is provided with a groove, the inner diameter of the mounting hole of the left circumferential bulge is matched with the inner diameter of the first stage, the inner diameter of the mounting hole of the middle circumferential bulge is matched with the inner diameter of the third stage, and the inner diameter of the mounting hole of the right circumferential bulge is matched with the inner diameter of the fourth stage; a circumferential boss is arranged inwards on the outer sleeve, and the width of the circumferential boss is consistent with that of the circumferential groove on the left side; the edge outside left side circumference arch and right side circumference arch is equipped with the snap ring groove, and the inboard corresponding position of overcoat is equipped with the snap ring groove, and the inboard corresponding right side circumference recess both ends edge of overcoat is equipped with the snap ring groove respectively, all is equipped with the snap ring that matches in the snap ring groove.
3. The exchange device for fluid circulation during resting and rotating of claim 1, wherein: and one end or two ends of the inner shaft are provided with threaded holes.
4. The exchange device for fluid circulation during resting and rotating according to claim 2, characterized in that: and one end or two ends of the inner shaft are provided with threaded holes.
5. The exchange device for fluid circulation during resting and rotating of claim 1, wherein: and a through mounting hole is arranged in the inner shaft in a hollow manner.
6. The exchange device for fluid circulation during resting and rotating according to claim 2, characterized in that: and a through mounting hole is arranged in the inner shaft in a hollow manner.
7. An exchange device for fluid circulation during rest and rotation according to any one of claims 1 to 6, wherein: the inner shaft is characterized in that a plurality of round holes are formed in the circumferential protrusion on the end face of the other end of the inner shaft, threads are arranged in the round holes, one of the circumferential protrusions in the inner shaft is not provided with a round hole, so that the inner shaft is divided into two areas, the number of the round holes protruding in the circumferential direction on the end face of one side is consistent with that of the corresponding circumferential grooves, and each circumferential groove corresponds to one communicating pipe.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021204330129 | 2021-03-01 | ||
| CN202120433012 | 2021-03-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216069948U true CN216069948U (en) | 2022-03-18 |
Family
ID=80661128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122787358.1U Active CN216069948U (en) | 2021-03-01 | 2021-11-15 | Exchange device for fluid circulation in standing and rotating processes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216069948U (en) |
-
2021
- 2021-11-15 CN CN202122787358.1U patent/CN216069948U/en active Active
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Address after: 653100 Room 410, Floor 4, Building 4, Yuxi Innovation and Entrepreneurship Center, Tenglong Road, High tech Zone, Yuxi City, Yunnan Province Patentee after: Yuxi Yunqinghang Technology Co.,Ltd. Address before: 653100 607, building B, No.22 Nanxiang Road (Internet Industry Innovation Park), high tech Zone, Yuxi City, Yunnan Province Patentee before: Yuxi Yunqing Trading Co.,Ltd. |
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