CN210774601U - Wind tunnel laboratory with higher working stability - Google Patents
Wind tunnel laboratory with higher working stability Download PDFInfo
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- CN210774601U CN210774601U CN201921637528.4U CN201921637528U CN210774601U CN 210774601 U CN210774601 U CN 210774601U CN 201921637528 U CN201921637528 U CN 201921637528U CN 210774601 U CN210774601 U CN 210774601U
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Abstract
The utility model relates to the technical field of wind tunnel experiment accessories, in particular to a wind tunnel laboratory with higher working stability; the experimental device can be used for supporting the experimental tool after the first fan and the second fan are turned off after the experiment is finished; moreover, the working condition in the working cavity can be observed conveniently, and convenience is brought to a user; the experimental box comprises a plurality of groups of first fans, a plurality of groups of second fans, an experimental box, two groups of connecting plates and two groups of net racks, wherein a working cavity is arranged in the experimental box, an opening is formed in the side wall of the experimental box, and a vent hole is formed in the side wall of the experimental box; the device also comprises two groups of upper fixing frames, two groups of lower fixing frames, two groups of driving belts, two groups of servo motors, two groups of movable motors, two groups of connecting frames, two groups of chains and two groups of supporting plates, wherein the two groups of driving plates are respectively arranged on the two groups of driving belts, the two groups of driving plates are both provided with adjusting frames, and the two groups of connecting shafts are both provided with two groups of driving rods; still include the transparent plate, be provided with the observation hole on the experimental box, the transparent plate is installed on the observation hole.
Description
Technical Field
The utility model relates to a wind-tunnel experiment auxiliary device's technical field especially relates to a higher wind-tunnel laboratory of job stabilization nature.
Background
As is well known, a wind tunnel laboratory is a device for moving a part of experimental tools to be inspected by using high-intensity wind power so as to conveniently analyze and record the movement track of the experimental tools in the wind, and is widely used in the field of wind tunnel experiments; the existing wind tunnel laboratory comprises a plurality of groups of first fans, a plurality of groups of second fans, an experimental box, two groups of connecting plates and two groups of net racks, wherein a working cavity is arranged in the experimental box, an opening is formed in the side wall of the experimental box and communicated with the working cavity, a baffle is hinged to the side wall of the opening, two groups of mounting grooves are respectively formed in the bottom end and the side wall of the working cavity, the two groups of net racks are respectively mounted in the two groups of mounting grooves, the plurality of groups of first fans and the plurality of groups of second fans are respectively mounted on the two groups of connecting plates, the two groups of net racks are respectively mounted in the two groups of mounting grooves, a plurality of groups of; when the existing wind tunnel laboratory is used, a worker opens the baffle and places related experimental tools in the working cavity, the worker can place the experimental tools in the working cavity, the experimental tools can float above the working cavity on the wind power by opening the plurality of groups of first fans and second fans to output the wind power, and a user can record and analyze the movement track of the experimental tools in the working cavity; however, in use, the existing wind tunnel laboratory finds that after the first fan and the second fan are turned off after the experiment is finished, the experimental tool can fall under the action of gravity, the experimental tool is easily damaged, and the use effect is poor; in addition, the working condition in the working cavity is inconvenient to observe, inconvenience is brought to a user, and the use reliability is low.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides a device which can support the experimental tool after the first fan and the second fan are closed after the experiment is finished, can prevent the experimental tool from being damaged and has stronger use effect; moreover, the working condition in the working cavity can be observed conveniently, convenience is brought to users, and therefore the wind tunnel laboratory with high working stability and high use reliability is improved.
The utility model discloses a wind tunnel laboratory that job stabilization nature is higher, including multiunit first fan, multiunit second fan, the experimental box, two sets of connecting plates and two sets of racks, be provided with the working chamber in the experimental box, be provided with the opening on the lateral wall of experimental box, and the opening communicates with each other with the working chamber, it is provided with the baffle to articulate on the lateral wall of opening, be provided with two sets of mounting grooves on the bottom of working chamber and the lateral wall respectively, two sets of racks are installed respectively in two sets of mounting grooves, multiunit first fan and multiunit second fan are installed respectively on two sets of connecting plates, two sets of racks are installed respectively in two sets of mounting grooves, all be provided with the multiunit mesh on two sets of racks, be provided; the two groups of upper fixing frames, the two groups of lower fixing frames, the two groups of transmission belts, the two groups of servo motors, the two groups of movable motors, the two groups of connecting frames, the two groups of chains and the two groups of supporting plates are respectively arranged on the front side and the rear side wall of the working cavity, the two groups of upper fixing frames and the two groups of lower fixing frames are respectively arranged at the upper side and the lower side in the connecting grooves, the two groups of servo motors are respectively arranged on the two groups of upper fixing frames, the output ends of the two groups of movable motors are respectively provided with a transmission shaft, the two groups of transmission shafts are respectively provided with two groups of first transmission rollers, the two groups of lower fixing frames are provided with fixed shafts, the two groups of fixed shafts are respectively provided with two groups of second transmission rollers, the two groups of transmission belts are respectively sleeved on the two groups of first transmission rollers and the two, the two groups of adjusting frames are respectively provided with two groups of adjusting grooves, the two groups of connecting frames are respectively arranged in the two groups of adjusting grooves, the two groups of connecting frames are respectively provided with two groups of connecting shafts, the two groups of connecting shafts are respectively provided with two groups of driving rods, the four groups of driving rods are respectively connected with the two groups of supporting plates, the two groups of movable motors are respectively arranged in the two groups of adjusting grooves, the output ends of the two groups of servo motors are respectively provided with two groups of driving shafts, the two groups of driving shafts and the two groups of connecting shafts are respectively provided with two groups of first chain wheels and two groups of second chain wheels, and the two groups of chains are respectively sleeved; still include the transparent plate, be provided with the observation hole on the experimental box, and the observation hole communicates with each other with the working chamber, the transparent plate is installed on the observation hole.
The utility model discloses a higher wind-tunnel laboratory of job stabilization nature still includes spiral shaft and cleaning board, and the spiral shaft is installed in the working chamber, and the cleaning board is installed on the spiral shaft, be provided with the foam-rubber cushion on the cleaning board, foam-rubber cushion and transparent plate contact are provided with the rocker on the cleaning board, the rocker stretches out to the working chamber outside.
The utility model discloses a higher wind-tunnel laboratory of job stabilization nature still includes the rubber gasket seal, and the rubber gasket seal is installed on the lateral wall of experimental box, and the inside wall and the contact of rocker lateral wall of rubber gasket seal.
The utility model discloses a higher wind-tunnel laboratory of job stabilization nature still includes the arm-tie, be provided with the kerve on the preceding lateral wall of baffle, the left end and the right-hand member of arm-tie respectively with the left side wall and the right side wall connection of kerve.
The utility model discloses a higher wind-tunnel laboratory of job stabilization nature still includes two sets of interior sleeves and two sets of outer tube, and the front side and the rear side of working chamber bottom are provided with two sets of bottom plates respectively, and two sets of outer tube bottoms articulate respectively with two sets of bottom plate tops, and two sets of interior sleeve bottoms insert respectively to two sets of outer tube tops, and two sets of interior sleeve tops articulate respectively in the front side and the rear side of baffle bottom.
The utility model discloses a higher wind-tunnel laboratory of job stabilization nature still is connected with the lateral wall of experimental box including pressing from both sides the cover, the front side, the rear side and the downside that press from both sides the cover left end, it forms the standing groove to press from both sides between the lateral wall of cover and experimental box.
The utility model discloses a higher wind-tunnel laboratory of job stabilization nature still includes the light, and the top of working chamber is provided with the draw-in groove, and the light is installed in the draw-in groove.
The utility model discloses a higher wind-tunnel laboratory of job stabilization nature still includes four group's landing legs, and four group's landing legs are installed respectively in the left front side of experimental box bottom, right front side, left rear side and right rear side, four group's landing leg bottoms are provided with four group's bases respectively.
Compared with the prior art, the beneficial effects of the utility model are that: the two groups of servo motors can drive the transmission shafts to rotate so as to drive the two groups of first transmission rollers to rotate, the two groups of first transmission rollers can drive the transmission belts to relatively rotate so as to enable the two groups of driving plates to move, the driving plates can drive the two groups of adjusting frames to move, the two groups of servo motors can drive the two groups of driving shafts to drive the two groups of first chain wheels to rotate, the two groups of first chain wheels can respectively drive the two groups of chains to relatively rotate while rotating, the two groups of chains can drive the two groups of connecting shafts to rotate while relatively rotating, the two groups of driving rods can drive the two groups of supporting plates to simultaneously move, experimental tools can be supported after the first fan and the second fan are turned off after an experiment is finished, the experimental tools can be prevented from being damaged, and; moreover, the working condition in the working cavity can be conveniently observed through the transparent plate, convenience is brought to a user, and the working stability of the use reliability of the working cavity is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the structure within the connecting trough;
FIG. 3 is a schematic view of the structure of the adjustment bracket and the support plate;
FIG. 4 is a schematic view of a transparent plate and a cleaning plate;
fig. 5 is a schematic view of the structure of the inner sleeve, the outer sleeve and the base plate.
In the drawings, the reference numbers: 1. a first fan; 2. a second fan; 3. an experimental box; 4. a connecting plate; 5. a net frame; 6. a baffle plate; 7. an upper fixing frame; 8. a lower fixing frame; 9. a transmission belt; 10. A servo motor; 11. a movable motor; 12. a connecting frame; 13. a chain; 14. a support plate; 15. A second driving roller; 16. an adjusting bracket; 17. a connecting shaft; 18. driving the rod; 19. a first drive roller; 20. a transparent plate; 21. cleaning the plate; 22. a sponge cushion; 23. a rocker; 24. sealing the rubber ring; 25. pulling a plate; 26. an inner sleeve; 27. a base plate; 28. a jacket; 29. an illuminating lamp; 30. A support leg; 31. a base.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1 to 5, the utility model discloses a wind tunnel laboratory with higher working stability, including multiunit first fan 1, multiunit second fan 2, experimental box 3, two sets of connecting plates 4 and two sets of racks 5, be provided with the working chamber in the experimental box 3, be provided with the opening on the lateral wall of experimental box 3, and the opening communicates with each other with the working chamber, it is provided with baffle 6 to articulate on the lateral wall of opening, be provided with two sets of mounting grooves on the bottom of working chamber and the lateral wall respectively, two sets of racks are installed respectively in two sets of mounting grooves, multiunit first fan 1 and multiunit second fan 2 are installed respectively on two sets of connecting plates 4, two sets of racks 5 are installed respectively in two sets of mounting grooves, all be provided with the multiunit mesh on two sets of racks 5, be provided with the ventilation hole; the device also comprises two groups of upper fixing frames 7, two groups of lower fixing frames 8, two groups of driving belts 9, two groups of servo motors 10, two groups of movable motors 11, two groups of connecting frames 12, two groups of chains 13 and two groups of supporting plates 14, wherein two groups of connecting grooves are respectively arranged on the front side and the rear side wall of the working cavity, the two groups of upper fixing frames 7 and the two groups of lower fixing frames 8 are respectively arranged at the upper side and the lower side in the connecting grooves, the two groups of servo motors 10 are respectively arranged on the two groups of upper fixing frames 7, the output ends of the two groups of movable motors 11 are respectively provided with a driving shaft, two groups of first driving rollers 19 are respectively arranged on the two groups of driving shafts, fixed shafts are arranged on the two groups of lower fixing frames 8, two groups of second driving rollers 15 are respectively arranged on the two groups of fixed shafts, the two groups of driving belts 9 are, two groups of driving plates are respectively provided with an adjusting frame 16, two groups of adjusting grooves are respectively arranged on the two groups of adjusting frames 16, two groups of connecting frames 12 are respectively arranged in the two groups of adjusting grooves, two groups of connecting shafts 17 are respectively arranged on the two groups of connecting frames 12, two groups of driving rods 18 are respectively arranged on the two groups of connecting shafts 17, four groups of driving rods 18 are respectively connected with two groups of supporting plates 14, two groups of movable motors 11 are respectively arranged in the two groups of adjusting grooves, two groups of driving shafts are respectively arranged at the output ends of two groups of servo motors 10, two groups of first chain wheels and two groups of second chain wheels are respectively arranged on the two groups of driving shafts and the two groups of connecting shafts 17, and two groups of chains 13 are respectively sleeved; the experimental box 3 is provided with an observation hole which is communicated with the working cavity, and the transparent plate 20 is arranged on the observation hole; the two groups of servo motors can drive the transmission shafts to rotate so as to drive the two groups of first transmission rollers to rotate, the two groups of first transmission rollers can drive the transmission belts to relatively rotate so as to enable the two groups of driving plates to move, the driving plates can drive the two groups of adjusting frames to move, the two groups of servo motors can drive the two groups of driving shafts to drive the two groups of first chain wheels to rotate, the two groups of first chain wheels can respectively drive the two groups of chains to relatively rotate while rotating, the two groups of chains can drive the two groups of connecting shafts to rotate while relatively rotating, the two groups of driving rods can drive the two groups of supporting plates to simultaneously move, experimental tools can be supported after the first fan and the second fan are turned off after an experiment is finished, the experimental tools can be prevented from being damaged, and; moreover, the working condition in the working cavity can be conveniently observed through the transparent plate, convenience is brought to a user, and the working stability of the use reliability of the working cavity is improved.
The utility model discloses a wind tunnel laboratory that job stabilization nature is higher still includes spiral shaft and cleaning board 21, and the spiral shaft is installed in the working chamber, and cleaning board 21 is installed on the spiral shaft, is provided with foam-rubber cushion 22 on cleaning board 21, and foam-rubber cushion 22 contacts with transparent plate 20, is provided with rocker 23 on cleaning board 21, and rocker 23 stretches out to the working chamber outside; the user can drive the cleaning plate to rotate on the fixed shaft by manually moving the rocker, and the cleaning plate can drive the spongy cushion to move to clean the transparent plate.
The utility model discloses a wind tunnel laboratory with higher working stability, which also comprises a sealing rubber ring 24, wherein the sealing rubber ring 24 is arranged on the side wall of the experimental box 3, and the inner side wall of the sealing rubber ring 24 is contacted with the outer side wall of the rocker 23; the work leakproofness in the work chamber can be ensured, can prevent that the air from entering the work intracavity and causing the influence to wind-force.
The wind tunnel laboratory with higher working stability of the utility model also comprises a pulling plate 25, a pulling groove is arranged on the front side wall of the baffle 6, and the left end and the right end of the pulling plate 25 are respectively connected with the left side wall and the right side wall of the pulling groove; the user pulls the pulling plate to drive the baffle to move, so that the user can open or close the baffle conveniently.
The utility model discloses a wind tunnel laboratory that job stabilization nature is higher still includes two sets of interior sleeves 26 and two sets of outer sleeves, and the front side and the rear side of working chamber bottom are provided with two sets of bottom plates 27 respectively, and two sets of outer sleeves bottom articulate respectively with two sets of bottom plate 27 tops, and two sets of interior sleeves 26 bottoms insert respectively to two sets of outer sleeve tops, and two sets of interior sleeves 26 tops articulate respectively in the front side and the rear side of 6 bottoms of baffle; the baffle can be supported by the two groups of inner sleeves and the two groups of outer sleeves, so that the baffle can be prevented from moving in the working process to bring inconvenience to a user.
The utility model discloses a wind tunnel laboratory with higher working stability, which also comprises a jacket 28, wherein the front side, the rear side and the lower side of the left end of the jacket 28 are all connected with the side wall of the experimental box 3, and a placing groove is formed between the jacket 28 and the side wall of the experimental box 3; the convenience of the user places the label paper for recording the working information in the placing groove, and convenience is brought to the user.
The wind tunnel laboratory with higher working stability of the utility model also comprises a lighting lamp 29, the top end of the working cavity is provided with a clamping groove, and the lighting lamp 29 is arranged in the clamping groove; the illumination lamp can improve the brightness in the working cavity, and the working condition in the working cavity can be observed conveniently when the brightness is low nearby.
The wind tunnel laboratory with higher working stability of the utility model also comprises four groups of supporting legs 30, wherein the four groups of supporting legs 30 are respectively arranged at the left front side, the right front side, the left rear side and the right rear side of the bottom end of the experimental box 3, and four groups of bases 31 are respectively arranged at the bottom ends of the four groups of supporting legs 30; the working stability of the device can be improved.
The utility model relates to a wind tunnel laboratory with higher working stability, when in work, a user firstly moves the whole device to the position required by the user, the user pulls the pulling plate to drive the baffle to move, the baffle is convenient to open by the user, the baffle can be supported by the two sets of inner sleeves and the two sets of outer sleeves, the baffle can be prevented from moving in the working process, a worker opens the baffle and places related experimental tools in the working cavity, the worker can place the experimental tools in the working cavity, the experimental tools can float on the wind power to the upper part of the working cavity by opening the plurality of sets of first fans and the second fans to output the wind power, the working condition in the working cavity can be conveniently observed through the transparent plate, the user can record and analyze the motion trail of the experimental tools in the working cavity, after the device works, the two sets of servo motors can drive the transmission shaft to rotate to drive the two sets of first transmission rollers to, two sets of first drive rollers rotate and can drive the drive belt and carry out relative rotation and make two sets of drive boards remove, drive two sets of alignment brackets of board and remove, two sets of servo motor drive two sets of drive shafts and can drive two sets of first sprockets and rotate, can drive two sets of chains respectively when two sets of first sprockets are rotatory and rotate relatively, two sets of chains can drive two sets of connecting axles when carrying out relative rotation and rotate, can drive two sets of drive rods and drive two sets of backup pads simultaneously and remove, in order to utilize the backup pad to support the experimental apparatus.
The wind tunnel laboratory with higher working stability of the utility model has the advantages that under the condition that the contrary explanation is not made, the directional terms "up, down, left, right, front, back, inside, and outside, and vertical and horizontal" included in the term merely represent the orientation of the term in the normal use state, or be a trivial term understood by those skilled in the art, and should not be considered as limiting the term, at the same time, the terms "first," "second," and "()" do not denote any particular quantity or order, but rather are used to distinguish one name from another, furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but also includes other elements not expressly listed or inherent to such process, method, article, or apparatus.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A wind tunnel laboratory with high working stability comprises a plurality of groups of first fans (1), a plurality of groups of second fans (2), an experiment box (3), two groups of connecting plates (4) and two groups of net racks (5), wherein a working cavity is arranged in the experiment box (3), an opening is formed in the side wall of the experiment box (3) and communicated with the working cavity, a baffle (6) is hinged to the side wall of the opening, two groups of mounting grooves are formed in the bottom end and the side wall of the working cavity respectively, the two groups of net racks are mounted in the two groups of mounting grooves respectively, the plurality of groups of first fans (1) and the plurality of groups of second fans (2) are mounted on the two groups of connecting plates (4) respectively, the two groups of net racks (5) are mounted in the two groups of mounting grooves respectively, a plurality of groups of meshes are arranged on the two groups of; the automatic feeding device is characterized by further comprising two groups of upper fixing frames (7), two groups of lower fixing frames (8), two groups of transmission belts (9), two groups of servo motors (10), two groups of movable motors (11), two groups of connecting frames (12), two groups of chains (13) and two groups of supporting plates (14), wherein two groups of connecting grooves are formed in the front side and the rear side wall of the working cavity respectively, the two groups of upper fixing frames (7) and the two groups of lower fixing frames (8) are installed on the upper sides and the lower sides in the connecting grooves respectively, the two groups of servo motors (10) are installed on the two groups of upper fixing frames (7) respectively, the output ends of the two groups of movable motors (11) are provided with transmission shafts respectively, the transmission shafts are two groups of first transmission rollers (19) arranged on the transmission shafts respectively, fixed shafts are arranged on the two groups of lower fixing frames (8) respectively, the two groups of second transmission rollers (15) are arranged on the two groups of fixed ) Two groups of driving plates are respectively arranged on the two groups of driving belts (9), the two groups of driving plates are both provided with adjusting frames (16), two groups of adjusting grooves are respectively arranged on the two groups of adjusting frames (16), two groups of connecting frames (12) are respectively arranged in the two groups of adjusting grooves, two groups of connecting shafts (17) are respectively arranged on the two groups of connecting frames (12), two groups of driving rods (18) are respectively arranged on the two groups of connecting shafts (17), the four groups of driving rods (18) are respectively connected with the two groups of supporting plates (14), two groups of movable motors (11) are respectively arranged in the two groups of adjusting grooves, the output ends of the two groups of servo motors (10) are respectively provided with two groups of driving shafts, two groups of first chain wheels and two groups of second chain wheels are respectively arranged on the two groups of driving shafts and two groups of connecting shafts (17), the two groups of chains (13) are respectively sleeved on the two groups of first chain wheels and the two groups of second chain wheels; the experimental box is characterized by further comprising a transparent plate (20), an observation hole is formed in the experimental box (3) and communicated with the working cavity, and the transparent plate (20) is installed on the observation hole.
2. A wind tunnel laboratory with high working stability according to claim 1, further comprising a rotating shaft and a cleaning plate (21), wherein the rotating shaft is installed in the working chamber, the cleaning plate (21) is installed on the rotating shaft, a spongy cushion (22) is arranged on the cleaning plate (21), the spongy cushion (22) is in contact with the transparent plate (20), a rocker (23) is arranged on the cleaning plate (21), and the rocker (23) extends out of the working chamber.
3. A wind tunnel laboratory with high working stability according to claim 2, further comprising a rubber gasket (24), wherein the rubber gasket (24) is installed on the side wall of the laboratory box (3), and the inner side wall of the rubber gasket (24) is in contact with the outer side wall of the rocker (23).
4. A wind tunnel laboratory with higher working stability according to claim 3, further comprising a pulling plate (25), wherein a pulling groove is provided on the front side wall of the baffle plate (6), and the left end and the right end of the pulling plate (25) are respectively connected with the left side wall and the right side wall of the pulling groove.
5. A wind tunnel laboratory with higher working stability according to claim 4, further comprising two sets of inner sleeves (26) and two sets of outer sleeves, wherein two sets of bottom plates (27) are respectively disposed on the front side and the rear side of the bottom end of the working chamber, the bottom ends of the two sets of outer sleeves are respectively hinged to the top ends of the two sets of bottom plates (27), the bottom ends of the two sets of inner sleeves (26) are respectively inserted into the top ends of the two sets of outer sleeves, and the top ends of the two sets of inner sleeves (26) are respectively hinged to the front side and the rear side of the bottom end of the.
6. A wind tunnel laboratory with high working stability according to claim 5, further comprising a jacket (28), wherein the front side, the rear side and the lower side of the left end of the jacket (28) are connected with the side wall of the experimental box (3), and a placing groove is formed between the jacket (28) and the side wall of the experimental box (3).
7. A wind tunnel laboratory with higher working stability according to claim 6, further comprising a lighting lamp (29), wherein a slot is arranged at the top end of the working cavity, and the lighting lamp (29) is installed in the slot.
8. A wind tunnel laboratory with high working stability according to claim 7, further comprising four sets of legs (30), wherein the four sets of legs (30) are respectively installed at the left front side, the right front side, the left rear side and the right rear side of the bottom end of the experimental box (3), and the four sets of bases (31) are respectively arranged at the bottom ends of the four sets of legs (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921637528.4U CN210774601U (en) | 2019-09-29 | 2019-09-29 | Wind tunnel laboratory with higher working stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921637528.4U CN210774601U (en) | 2019-09-29 | 2019-09-29 | Wind tunnel laboratory with higher working stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210774601U true CN210774601U (en) | 2020-06-16 |
Family
ID=71041523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921637528.4U Expired - Fee Related CN210774601U (en) | 2019-09-29 | 2019-09-29 | Wind tunnel laboratory with higher working stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210774601U (en) |
-
2019
- 2019-09-29 CN CN201921637528.4U patent/CN210774601U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200616 Termination date: 20210929 |