CN212004336U - Rotary valve mechanism and photovoltaic solder strip tin coating machine - Google Patents
Rotary valve mechanism and photovoltaic solder strip tin coating machine Download PDFInfo
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- CN212004336U CN212004336U CN201922343025.2U CN201922343025U CN212004336U CN 212004336 U CN212004336 U CN 212004336U CN 201922343025 U CN201922343025 U CN 201922343025U CN 212004336 U CN212004336 U CN 212004336U
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Abstract
The utility model discloses a rotary valve mechanism and photovoltaic solder strip tin coating machine relates to photovoltaic solder strip processing technology field. The rotary valve mechanism comprises a driving assembly, a push rod and an outer cover body, the push rod can do linear reciprocating motion under the driving of the driving assembly, and a ring groove is formed in the outer peripheral wall of the push rod; the outer cover body is sleeved on the periphery of the push rod, the annular groove can be sealed by the inner wall of the outer cover body, and an air inlet and an air blowing hole are formed in the outer cover body; in the process that the push rod does linear reciprocating motion, the air inlet hole and the air blowing hole are communicated or disconnected through the movement of the annular groove, so that intermittent air blowing of the photovoltaic welding strip is realized. The rotary valve mechanism drives the annular groove to communicate or disconnect the air inlet and the air blowing hole through the linear reciprocating motion of the push rod, so that an accurate on-off air source is realized, and the stability of the tin-coating size of the photovoltaic solder strip is ensured.
Description
Technical Field
The utility model relates to a photovoltaic solder strip processing technology field especially relates to a rotary valve mechanism and photovoltaic solder strip tin-plating machine.
Background
With the development of society, the photovoltaic industry based on solar energy has been rapidly developed at home and abroad in recent years, and as the conventional energy is gradually reduced, the search for unconventional energy becomes a subject of attention by all countries, and solar energy is regarded as inexhaustible clean energy by all countries in the world and becomes a great possibility for replacing conventional energy, so that the solar photovoltaic industry is rapidly developed, and the solar photovoltaic welding strip, as an important component of a photovoltaic panel, has an extremely important role in the energy conversion efficiency of solar energy and the service life of the photovoltaic panel, so that the production requirement on the photovoltaic welding strip is high.
The photovoltaic solder strip is also called a tinned copper strip, a current dividing and converging strip or an interconnecting strip and is applied to connection of photovoltaic module cells. The most common is to use copper flat wire photovoltaic solder ribbon connections. In actual use, because the setting of one section tin plating and one section non-tin plating of same tin-plated copper strip can increase the solar reflection to reinforcing photovoltaic energy conversion efficiency, the photovoltaic solder strip that the interval that so needs will become one section tin plating and one section non-tin plating with tin-plated copper strip processing to improve energy conversion. The latest technology used at present is to control a high-pressure air source by utilizing the on-off principle of an electromagnetic valve so as to realize the tin coating treatment of different thicknesses on the surface of a tin-plated copper strip. However, the following problems are still found during use: firstly, the design of the electromagnetic valve control device is too simple, and the on-off speed is delayed and inaccurate; secondly, the surface size fluctuation of the tinned copper strip is large after the tinning treatment, and an unstable image exists.
Therefore, a rotary valve mechanism and a photovoltaic solder ribbon tin coating machine are needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pair of rotary valve mechanism and photovoltaic solder strip tin plating machine can realize accurate break-make air supply, has guaranteed the stability that photovoltaic solder strip tin plating size.
To achieve the purpose, the utility model adopts the following technical proposal:
a rotary valve mechanism comprising:
a drive assembly;
the push rod can do linear reciprocating motion under the driving of the driving assembly, and a ring groove is formed in the outer peripheral wall of the push rod;
the outer cover body is sleeved on the periphery of the push rod, the annular groove can be sealed by the inner wall of the outer cover body, and an air inlet and an air blowing hole are formed in the outer cover body;
and in the process that the push rod does linear reciprocating motion, the air inlet is communicated with or disconnected from the air blowing hole by the movement of the annular groove.
Optionally, the air blowing hole, the annular groove and the air inlet hole are all arranged in one.
Optionally, the annular with the inlet port all sets up to one, the hole of blowing sets up to two, the inlet port with the annular is normal open state in the push rod is straight reciprocating motion's in-process, one the annular with two the hole of blowing communicates in turn.
Optionally, the annular with the hole of blowing all establishes to two, the inlet port establishes to one, two the annular is followed push rod direction of motion interval sets up, two the annular respectively with one the hole of blowing intercommunication the push rod is straight reciprocating motion's in-process, one the inlet port communicates with two the annular is in turn communicated.
Optionally, the number of the air inlet holes, the number of the air blowing holes and the number of the ring grooves are two, and the two ring grooves are arranged at intervals along the movement direction of the push rod;
in the process that the push rod does linear reciprocating motion, when one of the annular grooves communicates the corresponding air inlet hole with the air blowing hole, the other annular groove disconnects the corresponding air inlet hole from the air blowing hole.
Optionally, the outer cover body is further provided with an exhaust hole, and the exhaust hole is configured to be communicated with the ring groove of the broken gas blowing hole so as to exhaust high-pressure gas in the ring groove.
Optionally, the rotary valve mechanism further includes a valve cover, the valve cover is connected to the outer cover, and the push rod makes a linear reciprocating motion in an accommodating cavity formed by the valve cover and the outer cover.
Optionally, the drive assembly comprises:
a motor;
one end of the rotating shaft is connected with the motor;
the cam is connected to the other end of the rotating shaft, the outer contour of the cam is abutted to one end of the push rod, and the cam is driven by the motor to drive the push rod to do linear reciprocating motion.
Optionally, the rotary valve mechanism further comprises a roller connected to one end of the push rod abutting the cam, the roller being in rolling contact with the cam.
A photovoltaic solder strip tin coating machine comprises the rotary valve mechanism.
The utility model has the advantages that:
the utility model provides a rotary valve mechanism and photovoltaic solder strip tin coating machine. The rotary valve mechanism drives the annular groove to communicate or disconnect the air inlet and the air blowing hole through the linear reciprocating motion of the push rod, so that an accurate on-off air source is realized, and the stability of the tin-coating size of the photovoltaic solder strip is ensured.
Drawings
Fig. 1 is a schematic diagram of an overall structure of a rotary valve mechanism according to an embodiment of the present invention;
FIG. 2 is an exploded schematic view of a rotary valve mechanism according to an embodiment of the present invention;
fig. 3 is a schematic view of a cam, a push rod and an outer cover of a rotary valve mechanism according to an embodiment of the present invention.
In the figure:
1. a drive assembly; 11. a motor; 12. a rotating shaft; 13. a cam; 2. a push rod; 21. a ring groove; 3. an outer cover body; 31. an air inlet; 32. a gas blowing hole; 33. an exhaust hole; 4. a valve cover; 5. a return spring; 6. a spring cap; 7. a roller; 8. a valve housing; 9. a base.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1-3, the present embodiment provides a rotary valve mechanism comprising a drive assembly 1, a push rod 2 and an outer housing 3. The driving assembly 1 can drive the push rod 2 to do linear reciprocating motion, the outer cover body 3 is sleeved on the periphery of the push rod 2, an air inlet 31 and an air blowing hole 32 are formed in the outer cover body 3, one end of the air inlet 31 is connected with a high-pressure air source, and the air blowing hole 32 is connected with an air blowing pipe. In the process that the push rod 2 does linear reciprocating motion, the air inlet hole 31 and the air blowing hole 32 are communicated or disconnected by the movement of the push rod 2, so that the intermittent air blowing of the photovoltaic welding strip is realized.
In order to realize the linear reciprocating motion of the driving push rod 2, the driving assembly 1 comprises a motor 11, a rotating shaft 12 and a cam 13. One end of the rotating shaft 12 is connected with the motor 11, the other end is connected with the cam 13, and the outer contour of the cam 13 is abutted against one end of the push rod 2. The cam 13 drives the push rod 2 to do linear reciprocating motion under the driving of the motor 11. Specifically, as shown in fig. 2-3, the outer contour of the cam 13 is composed of an area a and an area B, and the distance from the area a to the center point of the cam 13 is larger than the distance from the area B to the center point of the cam 13. In the process that the area where the outer contour of the cam 13 is abutted with the push rod 2 is switched from the area A to the area B, the push rod 2 moves close to the cam 13 in a linear mode; in the process that the area where the outer contour of the cam 13 is abutted with the push rod 2 is switched from the area B to the area A, the push rod 2 moves away from the cam 13 in a straight line; the annular groove 21 is realized through the change of the contact area of the push rod 2 and the outer contour of the cam 13 to connect or disconnect the air inlet hole 31 and the air blowing hole 32. When the area where the outer contour of the cam 13 abuts against the push rod 2 is the area A or the area B, the push rod 2 is kept still at the moment, so that the intermittent blowing of the blow holes 32 to the photovoltaic welding strip is realized. It can be understood that the path lengths of the area a and the area B can be set according to actual requirements, and the path lengths of the area a and the area B are set to be 1:1 in this embodiment, so as to obtain a photovoltaic solder strip with a section of tin plating and a section of non-tin plating and the same interval size. Of course, the driving assembly 1 is not limited to this embodiment, so as to realize the linear reciprocating motion of the driving rod 2. For example, the driving assembly 1 may be a cylinder to drive the linear reciprocating motion of the push rod 2.
Optionally, offer the annular 21 that supplies gas to pass through on the push rod 2 periphery wall, the cross-section of annular 21 is rectangle or arc, and 2 outer walls of push rod and 3 inner walls of the outer cover body can laminate in order to seal the opening of annular 21.
The annular groove 21 can be communicated with the air inlet hole 31 and the air blowing hole 32, so that high-pressure air in the high-pressure air source can be blown out through the air blowing hole 32 and the air blowing pipe to blow the photovoltaic welding strip. Specifically, in the process that the push rod 2 makes linear reciprocating motion, the air inlet hole 31 and the air blowing hole 32 are communicated or disconnected through the movement of the annular groove 21, so that intermittent air blowing of the photovoltaic welding strip is realized.
Alternatively, the air blowing holes 32 can be set to be one for intermittently blowing air to the same photovoltaic solder strip; the number of the air blowing holes 32 may be two to intermittently blow air to two photovoltaic solder strips or intermittently blow air to the front and back surfaces of the same photovoltaic solder strip.
Specifically, when one blowing hole 32 is provided, and one annular groove 21 and one air inlet hole 31 are also provided, in the process of the linear reciprocating motion of the push rod 2, the air inlet hole 31 is communicated or disconnected with the blowing hole 32 by the movement of the annular groove 21 so as to realize the intermittent blowing of the photovoltaic welding strip. The way in which the ring groove 21 connects or disconnects the air inlet hole 31 and the air blowing hole 32 can be classified into the following three cases: (1) the air inlet hole 31 and the annular groove 21 are in a normally open state, and the annular groove 21 is communicated with or disconnected from the air blowing hole 32 in the linear reciprocating motion process of the push rod 2; (2) the air blowing hole 32 and the annular groove 21 are in a normally open state, and the annular groove 21 is communicated with or disconnected from the air inlet hole 31 in the process that the push rod 2 does linear reciprocating motion; (3) in the process of the linear reciprocating motion of the push rod 2, the annular groove 21 is simultaneously communicated with or disconnected from the air inlet hole 31 and the air blowing hole 32.
Alternatively, when two blow holes 32 are provided and one ring groove 21 and one air intake hole 31 are provided, the ring groove 21 and the air intake hole 31 are set to be in a normally open state, and one ring groove 21 and two blow holes 32 are alternately communicated in the process of the linear reciprocating motion of the push rod 2.
Alternatively, when the number of the blowing holes 32 is two, the number of the ring grooves 21 is also two, and the number of the air inlet holes 31 is one, the two ring grooves 21 are arranged at intervals along the moving direction of the push rod 2, the two ring grooves 21 and the one blowing hole 32 are in a normally open state, and in the process that the push rod 2 makes a linear reciprocating motion, the one air inlet hole 31 and the two ring grooves 21 are alternately communicated.
Alternatively, when two air inlet holes 31 and two annular grooves 21 are provided, the two annular grooves 21 are arranged at intervals along the moving direction of the push rod 2, and when one annular groove 21 communicates the corresponding air inlet hole 31 with the air inlet hole 32 in the process of the linear reciprocating motion of the push rod 2, the other annular groove 21 disconnects the corresponding air inlet hole 31 from the air inlet hole 32. It can be understood that the manner of the other ring groove 21 for cutting off the corresponding air inlet hole 31 and air blowing hole 32 also conforms to the three situations, and the description thereof is omitted.
In order to avoid the mutual interference of the two air blowing holes 32, the embodiment selects the condition that the number of the air blowing holes 32, the number of the air inlet holes 31 and the number of the ring grooves 21 are set to be two for specific analysis. As shown in fig. 1 to 3, taking the upper and lower positions shown in fig. 1 to 3 as an example, when the region a of the outer contour of the cam 13 abuts against the push rod 2, the annular groove 21 located above the push rod 2 disconnects the upper air inlet hole 31 and the air blowing hole 32, the annular groove 21 located below the push rod 2 connects the lower air inlet hole 31 and the air blowing hole 32, and at this time, the lower air blowing hole 32 blows air to the photovoltaic solder strip. In the process of switching the area where the outer contour of the cam 13 abuts against the push rod 2 from the area a to the area B, at this time, the annular groove 21 located below the push rod 2 is gradually disconnected from the intake hole 31 and the blow hole 32 located below, and the annular groove 21 located above the push rod 2 is gradually communicated with the intake hole 31 and the blow hole 32 located above. When the area B of the outer contour of the cam 13 is abutted to the push rod 2, the annular groove 21 positioned above the push rod 2 is communicated with the air inlet hole 31 and the air blowing hole 32 above, and at the moment, the air blowing hole 32 above blows air to the photovoltaic welding strip.
Furthermore, the outer cover 3 is further provided with an exhaust hole 33, and the exhaust hole 33 is configured to communicate with the ring groove 21 of the cutoff blowing hole 32 to exhaust the high-pressure gas in the ring groove 21, so as to facilitate the resetting of the push rod 2. Alternatively, the number of the exhaust holes 33 may be one or two. When one exhaust hole 33 is provided, it is configured to exhaust one ring groove 21; when two exhaust holes 33 are provided, they are configured to alternately exhaust the two ring grooves 21, respectively.
Specifically, when one exhaust hole 33 is provided, and one intake hole 31, one ring groove 21 and one blow hole 32 are also provided, when the ring groove 21 is disconnected from the blow hole 32, the exhaust hole 33 communicates with the ring groove 21 to exhaust the high-pressure gas in the ring groove 21 so as to balance the internal and external air pressures, thereby facilitating the return of the push rod 2. When the number of the exhaust holes 33 is two and the number of the intake holes 31, the ring grooves 21 and the blow holes 32 is also two, when one ring groove 21 is in a state of being communicated with one intake hole 31 and one blow hole 32 and the other ring groove 21 is in a state of being disconnected from the other blow hole 32, the other ring groove 21 is communicated with a corresponding exhaust hole 33 to exhaust high-pressure gas therein.
In this embodiment, a specific analysis is made on the condition that two exhaust holes 33 are provided, as shown in fig. 1 to 3, when two exhaust holes 33 are provided and two intake holes 31, two blow holes 32, and two ring grooves 21 are provided, specifically, when the region a of the outer contour of the cam 13 abuts against the push rod 2, the ring groove 21 located below the push rod 2 communicates with the intake holes 31 and the blow holes 32 located below, and the ring groove 21 located above the push rod 2 is disconnected from the blow holes 32 located above, so that the ring groove 21 located above the push rod 2 communicates with the exhaust holes 33 located above; during the process that the area where the outer contour of the cam 13 is abutted with the push rod 2 is switched from the area A to the area B, the upper annular groove 21 discharges redundant high-pressure gas through the upper exhaust hole 33 so as to facilitate the push rod 2 to be switched from the area A to the area B without obstruction; when the outer contour of the push rod 2 abutting the cam 13 is switched to the B region, the upper exhaust hole 33 is disconnected from the upper ring groove 21 and the upper ring groove 21 communicates with the upper intake hole 31 and the exhaust hole 33. Similarly, in the process of switching the area where the outer contour of the cam 13 abuts against the push rod 2 from the area B to the area a, the lower exhaust hole 33 functions, the principle is the same, and the process is not described again here.
Optionally, the rotary valve mechanism further includes a valve cap 4, the valve cap 4 is connected to the outer cover 3, and the push rod 2 linearly reciprocates in a receiving cavity formed by the valve cap 4 and the outer cover 3. The specific valve cover 4 and the outer cover body 3 are detachably connected (in a threaded connection, in a clamping connection and the like) so as to facilitate replacement and maintenance of the push rod 2.
Optionally, the rotary valve mechanism further includes a return spring 5, the return spring 5 is disposed between the valve cap 4 and the push rod 2, specifically, one end of the return spring 5 is connected to the push rod 2, and the other end of the return spring abuts against the valve cap 4. The return spring 5 is configured to provide a return force to the push rod 2.
In order to increase the contact surface between the return spring 5 and the valve cover 4, so that the return spring 5 is uniformly stressed, the rotary valve mechanism further comprises a spring cap 6. Spring cap 6 is located between reset spring 5 and valve gap 4, and 6 one end joints of spring cap are in reset spring 5, and the other end supports tightly with valve gap 4 inner wall to convenient to detach. Specifically, a groove adapted to the spring cap 6 is formed in the valve cover 4, and the return spring 5 abuts against the inner wall of the groove through the spring cap 6.
Optionally, the rotary valve mechanism further comprises a roller 7, the roller 7 is connected to one end of the push rod 2 abutting against the cam 13 through a pin shaft, and the roller 7 is in rolling contact with the outer contour of the cam 13 to reduce the abrasion between the cam 13 and the push rod 2.
Optionally, the rotary valve mechanism further comprises a valve housing 8, the valve housing 8 is hollow, and a through hole communicated with the hollow structure is formed in the center of the surface of the valve housing 8. One end of the rotating shaft 12 connected with the cam 13 passes through the through hole and is arranged in the valve shell 8, and one end of the rotating shaft 12 connected with the motor 11 is arranged outside the valve shell 8; and the end of the push rod 2 connected with the roller 7 is arranged in the valve casing 8, and the end of the push rod 2 provided with the annular groove 21 is arranged outside the valve casing 8 so as to play a role of dustproof protection for the cam 13 and the roller 7. The one end that the valve gap 4 was kept away from to the outer cover body 3 is installed on valve casing 8, and the cavity that holds that the outer cover body 3 formed with valve gap 4 communicates with the hollow structure of valve casing 8, forms rotary valve mechanism's motion cavity jointly.
Optionally, to increase the stability of the rotary valve mechanism, the rotary valve mechanism further comprises a base 9, the bottom of the valve housing 8 being mounted on the base 9.
The embodiment also provides a photovoltaic solder strip tin coating machine which comprises the rotary valve mechanism.
The utility model provides a pair of rotary valve mechanism and photovoltaic solder strip tin coating machine drives annular 21 through the straight reciprocating motion of push rod 2 and communicates inlet port 31 and gas hole 32 or disconnection, has realized accurate break-make air supply, has guaranteed the stability of photovoltaic solder strip tin coating size.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (10)
1. A rotary valve mechanism, comprising:
a drive assembly (1);
the push rod (2) can do linear reciprocating motion under the driving of the driving assembly (1), and a ring groove (21) is formed in the outer peripheral wall of the push rod (2);
the outer cover body (3) is sleeved on the periphery of the push rod (2), the annular groove (21) can be sealed by the inner wall of the outer cover body (3), and an air inlet hole (31) and an air blowing hole (32) are formed in the outer cover body (3);
in the process that the push rod (2) does linear reciprocating motion, the air inlet holes (31) are communicated or disconnected with the air blowing holes (32) through the movement of the annular groove (21).
2. A rotary valve mechanism as claimed in claim 1 wherein the blow hole (32), the ring groove (21) and the inlet hole (31) are all provided in one.
3. A rotary valve mechanism according to claim 1, wherein the number of the ring grooves (21) and the number of the air inlet holes (31) are one, the number of the air outlet holes (32) is two, the air inlet holes (31) and the ring grooves (21) are in a normally open state, and one of the ring grooves (21) and two of the air outlet holes (32) are alternately communicated in a process that the push rod (2) makes a linear reciprocating motion.
4. A rotary valve mechanism according to claim 1, wherein the number of the ring grooves (21) and the number of the air blowing holes (32) are two, the number of the air inlet holes (31) is one, the two ring grooves (21) are arranged at intervals along the moving direction of the push rod (2), the two ring grooves (21) are respectively communicated with one air blowing hole (32), and one air inlet hole (31) is alternately communicated with the two ring grooves (21) in the process that the push rod (2) makes a linear reciprocating motion.
5. A rotary valve mechanism according to claim 1, characterized in that the number of the air inlet holes (31), the air blowing holes (32) and the ring grooves (21) is two, and the two ring grooves (21) are arranged at intervals along the moving direction of the push rod (2);
in the process that the push rod (2) does linear reciprocating motion, when one of the annular grooves (21) is communicated with the corresponding air inlet hole (31) and the air blowing hole (32), the other annular groove (21) is disconnected with the corresponding air inlet hole (31) and the air blowing hole (32).
6. A rotary valve mechanism according to claim 1, characterized in that the outer cover body (3) is further provided with a vent hole (33), and the vent hole (33) is configured to communicate with the ring groove (21) of the blow-off hole (32) to discharge the high-pressure gas in the ring groove (21).
7. A rotary valve mechanism as claimed in claim 1 further comprising a valve cap (4), the valve cap (4) being connected to the outer housing (3) and the push rod (2) being linearly reciprocated within a receiving chamber formed by the valve cap (4) and the outer housing (3).
8. A rotary valve mechanism as claimed in claim 1, wherein the drive assembly (1) comprises:
a motor (11);
one end of the rotating shaft (12) is connected with the motor (11);
the cam (13), cam (13) connect in the other end of pivot (12), cam (13) outline with push rod (2) one end butt, cam (13) are in the drive of motor (11) drives down push rod (2) do straight reciprocating motion.
9. A rotary valve mechanism as claimed in claim 8 further comprising a roller (7), the roller (7) being connected to an end of the push rod (2) abutting the cam (13), the roller (7) being in rolling contact with the cam (13).
10. A photovoltaic solder ribbon tinning machine, characterized by comprising a rotary valve mechanism according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922343025.2U CN212004336U (en) | 2019-12-24 | 2019-12-24 | Rotary valve mechanism and photovoltaic solder strip tin coating machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922343025.2U CN212004336U (en) | 2019-12-24 | 2019-12-24 | Rotary valve mechanism and photovoltaic solder strip tin coating machine |
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| CN212004336U true CN212004336U (en) | 2020-11-24 |
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| CN201922343025.2U Active CN212004336U (en) | 2019-12-24 | 2019-12-24 | Rotary valve mechanism and photovoltaic solder strip tin coating machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738725A (en) * | 2021-09-08 | 2021-12-03 | 中国航空工业集团公司西安飞机设计研究所 | Airflow direction control valve and opening and closing control mechanism for aircraft canopy of airflow direction control valve |
-
2019
- 2019-12-24 CN CN201922343025.2U patent/CN212004336U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738725A (en) * | 2021-09-08 | 2021-12-03 | 中国航空工业集团公司西安飞机设计研究所 | Airflow direction control valve and opening and closing control mechanism for aircraft canopy of airflow direction control valve |
| CN113738725B (en) * | 2021-09-08 | 2024-02-02 | 中国航空工业集团公司西安飞机设计研究所 | Airflow direction control valve and aircraft cabin cover opening and closing control mechanism thereof |
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