CN112568143A - Cage culture ventilation control system - Google Patents
Cage culture ventilation control system Download PDFInfo
- Publication number
- CN112568143A CN112568143A CN202011426501.8A CN202011426501A CN112568143A CN 112568143 A CN112568143 A CN 112568143A CN 202011426501 A CN202011426501 A CN 202011426501A CN 112568143 A CN112568143 A CN 112568143A
- Authority
- CN
- China
- Prior art keywords
- control
- shaped
- plate
- arc
- ventilation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K31/00—Housing birds
- A01K31/002—Poultry cages, e.g. transport boxes
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K31/00—Housing birds
Abstract
The invention discloses a cage-rearing ventilation control system, which can be used for timely adjusting the temperature change in a house according to the ventilation during the ventilation work through a temperature sensing control module, a telescopic rod and a first control motor, and preventing the temperature change in the house from being overlarge during the ventilation work.
Description
Technical Field
The invention relates to the technical field of ventilation control, in particular to a cage culture ventilation control system.
Background
The chicken house refers to a place where chickens inhabit, and comprises a core chicken house, a breeding chicken house, a brooding chicken house, a breeding chicken house, an egg chicken house, a meat chicken house, an environment-safe livestock and poultry house and the like according to feeding objects; according to the breeding objects, a core chicken house, a breeding chicken house, a brooding chicken house, a breeding chicken house, an egg chicken house, a meat chicken house and the like; the plane arrangement is closely related to the group feeding mode of the chickens, and generally comprises a flat feeding mode and a cage feeding mode; the flat rearing can separate chicken groups according to the needs, so that the chickens can move on the ground or a flat net in the house, and a walkway is arranged in the house, thereby facilitating the operation and management; cage-raising, namely raising chickens in a coop, wherein the raising density is about 1-3 times of that of flat raising; the coops are configured in a flat type, a semi-step type, a mixed type, a laminated type and a high bed type.
For a large number of chickens which can be bred in a chicken house, a large number of excrement can be generated, so that the air environment in the chicken house is deteriorated, in order to ensure the air quality in the chicken house, the chicken can be exhausted, on one hand, a comfortable environment can be provided for the chickens, the chicken can grow conveniently, on the other hand, the work of workers is facilitated, the work efficiency is improved, but the ventilation efficiency of a ventilation system in the prior art is low, the ventilation and air exchange work cannot be performed according to actual requirements, the ventilation and air exchange work efficiency is reduced, the temperature in the chicken house also needs to be controlled during the ventilation and air exchange work, when the exhaust work is performed through an exhaust fan, the air with different external temperatures can enter the chicken house, the influence on the temperature environment in the chicken house can be caused during the ventilation and air exchange work, and the normal temperature difference of the environment in the chicken house is broken through, the balance of indoor temperature is broken, which is unfavorable for chicken breeding work, and therefore, the invention provides a cage-rearing ventilation control system for solving the problems.
Disclosure of Invention
The invention aims to provide a cage culture ventilation control system to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a cage culture ventilation control system comprises an exhaust fan main body, a placing box, a limiting strip, a telescopic rod, a temperature sensing control module, a first control motor and a ventilation micro-control mechanism;
a placing box is arranged on one side of the exhaust fan main body, a limiting strip is arranged on the exhaust fan main body, a telescopic rod is arranged in the placing box, a temperature sensing control module is arranged on the placing box, and the output end of the temperature sensing control module is connected with the input end of the telescopic rod;
one end of the telescopic rod is provided with a connecting plate, the other side of the connecting plate is symmetrically provided with connecting columns, the other ends of the connecting columns are arranged on the sealing plate, and first regulating through grooves are symmetrically arranged in the sealing plate in a penetrating manner;
one end of the first control motor is provided with a rotating shaft, the rotating shaft is inserted into the disc, a circular connecting groove is formed in the rotating shaft, limiting clamping grooves are symmetrically formed in the side positions of the circular connecting groove, an extrusion spring is connected into the circular connecting groove, the other end of the extrusion spring is arranged on the connecting round block, the connecting round block is movably arranged in the circular connecting groove, and limiting clamping blocks are symmetrically arranged on the outer side wall of the connecting round block;
the outer side wall of the disc is symmetrically provided with fan-shaped regulating plates, and a ventilation micro-control mechanism is arranged in the fan-shaped regulating plates.
Preferably, the ventilation micro-control mechanism comprises a second regulation and control through groove, a second control motor, a transmission gear, an arc-shaped inner rack, an arc-shaped connecting strip, a connecting block, an arc-shaped movable groove, a movable micro-control sector plate, a fixed micro-control sector plate and a connecting spring, the second regulation and control through groove is formed, the second control motor is arranged on the fan-shaped regulation and control plate, the transmission gear is arranged at one end of the second control motor, the input end of the second control motor and the input end of the first control motor are connected with the output end of the temperature sensing control module, the transmission gear is meshed and connected with one side of the arc-shaped inner rack, the arc-shaped inner rack is movably arranged in the fan-shaped regulation and control plate, the arc-shaped inner rack is provided with the arc-shaped connecting strip at the other side, the connecting block is arranged at one side of the arc-shaped connecting strip, the connecting block is, the fixed micro-control sector plate is arranged in the sector regulation and control plate, one side of the movable micro-control sector plate is provided with a connecting spring, and the other end of the connecting spring is arranged in the fixed micro-control sector plate.
Preferably, the limiting fixture blocks correspond to the limiting clamping grooves in arrangement positions and are arranged in the same number, and the length of each connecting circular block is equal to the depth of each circular connecting groove.
Preferably, the fan-shaped regulation and control board and the first regulation and control lead to both set up the position and correspond, and the setting group number is the same to set up to two sets at least.
Preferably, the arc-shaped inner racks correspond to the arrangement positions of the transmission gears, the arrangement numbers of the arc-shaped inner racks are the same, and the tooth form angle coefficients and the modulus of the arc-shaped inner racks are the same.
Compared with the prior art, the invention has the beneficial effects that:
according to the henhouse ventilation control system designed by the invention, the temperature sensing control module, the telescopic rod and the first control motor are arranged, when the air exhaust work is carried out, the temperature in the henhouse can be timely adjusted according to the change of the temperature in the henhouse during ventilation, the phenomenon that the temperature in the henhouse is excessively changed in the ventilation work process is prevented, and the ventilation micro-control mechanism is arranged, so that the air exhaust work can be finely adjusted in the ventilation work process, the smooth ventilation is further ensured, meanwhile, the temperature in the henhouse is maintained in a normal temperature change range, the temperature balance in the henhouse is ensured, the normal temperature environment of the henhouse is further maintained, and the influence on the breeding work of the henhouse is avoided.
Drawings
FIG. 1 is a schematic view of a connection structure according to the present invention;
FIG. 2 is a front view of the connection structure of the retractable rod and the sealing plate according to the present invention;
FIG. 3 is a top view of the connection structure of the expansion link and the closing plate according to the present invention;
FIG. 4 is an exploded view of a first control motor connection structure according to the present invention;
FIG. 5 is a top view of a fan-shaped adjustment plate connection structure according to the present invention;
FIG. 6 is a bottom view of the fan-shaped adjustment plate connection structure of the present invention;
FIG. 7 is an enlarged view of a portion of the connection structure of FIG. 6 according to the present invention;
fig. 8 is a block diagram of the working principle of the present invention.
In the figure: exhaust fan main part 1, place case 2, spacing strip 3, telescopic link 4, temperature sensing control module 5, connecting plate 6, spliced pole 7, shrouding 8, first regulation and control logical groove 9, first control motor 10, pivot 11, circular spread groove 12, spacing draw-in groove 13, connect the boss 14, spacing fixture block 15, extrusion spring 16, disc 17, fan-shaped regulation and control board 18, ventilation micro-control mechanism 19, second regulation and control logical groove 1901, second control motor 1902, drive gear 1903, arc internal rack 1904, arc connecting strip 1905, connecting block 1906, arc activity groove 1907, activity micro-control sector plate 1908, fixed micro-control sector plate 1909, connecting spring 1910.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below. The embodiments of the present invention, and all other embodiments obtained by a person of ordinary skill in the art without any inventive work, belong to the scope of protection of the present invention.
Referring to fig. 1 to 8, the present invention provides a technical solution: the invention relates to a cage-culture ventilation control system, which comprises an exhaust fan main body 1, a placing box 2, a limiting strip 3, a telescopic rod 4, a temperature sensing control module 5, a first control motor 10 and a ventilation micro-control mechanism 19, wherein the exhaust fan main body is provided with a fan;
a placing box 2 is arranged on one side of an exhaust fan main body 1, a limiting strip 3 is arranged on the exhaust fan main body 1, a telescopic rod 4 is arranged in the placing box 2, a temperature sensing control module 5 is arranged on the placing box 2, and the output end of the temperature sensing control module 5 is connected with the input end of the telescopic rod 4;
one end of the telescopic rod 4 is provided with a connecting plate 6, the other side of the connecting plate 6 is symmetrically provided with connecting columns 7, the other ends of the connecting columns 7 are arranged on a sealing plate 8, and first regulating through grooves 9 are symmetrically arranged in the sealing plate 8 in a penetrating manner;
one end of a first control motor 10 is provided with a rotating shaft 11, the rotating shaft 11 is inserted into a disc 17, a circular connecting groove 12 is arranged in the rotating shaft 11, limit clamping grooves 13 are symmetrically arranged at the side positions of the circular connecting groove 12, an extrusion spring 16 is connected into the circular connecting groove 12, the other end of the extrusion spring 16 is arranged on a connecting round block 14, the connecting round block 14 is movably arranged in the circular connecting groove 12, and limit clamping blocks 15 are symmetrically arranged on the outer side wall of the connecting round block 14;
the outer side wall of the disc 17 is symmetrically provided with fan-shaped regulating and controlling plates 18, and a ventilation micro-control mechanism 19 is arranged in the fan-shaped regulating and controlling plates 18.
Furthermore, the limit clamping blocks 15 correspond to the limit clamping grooves 13 in arrangement position and are arranged in the same number, and the length of the connecting round block 14 is equal to the depth of the round connecting groove 12.
Further, the fan-shaped regulation and control plate 18 corresponds to the first regulation and control through groove 9 in arrangement position, and the number of the arrangement groups is the same, and at least two groups are arranged.
Further, the ventilation micro-control mechanism 19 includes a second regulation through groove 1901, a second control motor 1902, a transmission gear 1903, an arc-shaped internal tooth bar 1904, an arc-shaped connecting bar 1905, a connecting block 1906, an arc-shaped movable groove 1907, a movable micro-control sector plate 1908, a fixed micro-control sector plate 1909, a connecting spring 1910, the second regulation through groove 1901, the second control motor 1902 is disposed on the sector-shaped regulation plate 18, a transmission gear 1903 is disposed at one end of the second control motor 1902, the input ends of the second control motor 1902 and the first control motor 10 are connected with the output end of the temperature sensing control module 5, the transmission gear 1903 is engaged with and disposed at one side of the arc-shaped internal tooth bar 1904, the arc-shaped internal tooth bar 1904 is movably disposed in the sector-shaped regulation plate 18, the arc-shaped connecting bar 1905 is disposed at the other side of the arc-shaped bar 1904, the connecting block 1906 is movably disposed at one side of the arc-shaped connecting bar, the movable micro-control sector plate 1908 is movably arranged in the fixed micro-control sector plate 1909, the fixed micro-control sector plate 1909 is arranged in the sector regulation and control plate 18, one side of the movable micro-control sector plate 1909 is provided with a connecting spring 1910, and the other end of the connecting spring 1910 is arranged in the fixed micro-control sector plate 1909.
Further, the arc-shaped inner rack 1904 corresponds to the transmission gear 1903 in arrangement position and is arranged in the same number of groups, and the tooth form angle coefficient and the modulus of the two are arranged in the same manner.
The working principle is as follows: for the henhouse ventilation control system designed by the invention, when the air exhaust work is needed, the indoor temperature can gradually change along with the progress of the air exhaust work when the air exhaust work is carried out on an air exhaust machine, the temperature floats, when the normal temperature fluctuation range is exceeded, the temperature sensing control module 5 is started, the telescopic rod 4 is firstly controlled to push the sealing plate 8 until the sealing plate 8 is contacted with the limiting strip 3, and then the sealing plate is stopped, the first control motor 10 is started, the first control motor 10 drives the disc 17 to rotate through the rotating shaft 11, the connecting circular block 14 and the limiting clamping block 15, and further drives the fan-shaped regulating plate 18 to rotate, the first regulating through groove 9 on the sealing plate 8 is shielded through the fan-shaped regulating plate 18 to regulate the air exhaust speed, and further regulate and control the indoor temperature, when the indoor temperature breaks the edge of the normal temperature difference balance in the henhouse during the air exhaust work, the temperature sensing control module 5 starts a second control motor 1902 in the ventilation micro-control mechanism 19, the second control motor 1902 drives a transmission gear 1903 to be in meshing transmission with an arc-shaped internal rack 1904, and then drives a movable micro-control sector plate 1908 to move through a connecting block 1906, the movable micro-control sector plate 1908 performs micro-adjustment work on the air exhaust work in the henhouse, so as to realize the temperature control function on the internal temperature of the henhouse, ensure that the henhouse is within the normal temperature variation range, and further ensure the normal breeding temperature environment of the henhouse, therefore, for the henhouse ventilation control system designed by the invention, the temperature sensing control module 5, the telescopic rod 4 and the first control motor 10 can be adjusted in time according to the temperature variation in the henhouse during the air exhaust work, so as to prevent the temperature variation in the henhouse from being too large during the ventilation work, and through the ventilation micro-control mechanism 19, in the ventilation working process, can finely tune its work of airing exhaust, and then ensure when ventilating smoothly, ensure that the temperature maintains in the house in a normal temperature variation within range, guarantee temperature balance in the house, and then maintain the normal temperature environment of chicken coop, avoid causing the influence to its breed work.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a ventilation control system breeds in cages which characterized in that: the device comprises an exhaust fan main body (1), a placing box (2), a limiting strip (3), an expansion link (4), a temperature sensing control module (5), a first control motor (10) and a ventilation micro-control mechanism (19);
a placing box (2) is arranged on one side of the exhaust fan main body (1), a limiting strip (3) is arranged on the exhaust fan main body (1), a telescopic rod (4) is arranged in the placing box (2), a temperature sensing control module (5) is arranged on the placing box (2), and the output end of the temperature sensing control module (5) is connected with the input end of the telescopic rod (4);
one end of the telescopic rod (4) is provided with a connecting plate (6), the other side of the connecting plate (6) is symmetrically provided with connecting columns (7), the other end of each connecting column (7) is arranged on the sealing plate (8), and first regulating through grooves (9) are symmetrically arranged in the sealing plate (8) in a penetrating manner;
one end of the first control motor (10) is provided with a rotating shaft (11), the rotating shaft (11) is inserted into a disc (17), a circular connecting groove (12) is formed in the rotating shaft (11), limiting clamping grooves (13) are symmetrically formed in the side positions of the circular connecting groove (12), an extrusion spring (16) is connected into the circular connecting groove (12), the other end of the extrusion spring (16) is arranged in a connecting round block (14), the connecting round block (14) is movably arranged in the circular connecting groove (12), and limiting clamping blocks (15) are symmetrically formed in the outer side wall of the connecting round block (14);
the outer side wall of the disc (17) is symmetrically provided with fan-shaped regulating plates (18), and ventilation micro-control mechanisms (19) are arranged in the fan-shaped regulating plates (18).
2. The cage culture ventilation control system of claim 1, wherein: the ventilation micro-control mechanism (19) comprises a second regulation and control through groove (1901), a second control motor (1902), a transmission gear (1903), an arc-shaped inner rack (1904), an arc-shaped connecting strip (1905), a connecting block (1906), an arc-shaped movable groove (1907), a movable micro-control sector plate (1908), a fixed micro-control sector plate (1909) and a connecting spring (1910), the second regulation and control through groove (1901), the second control motor (1902) is arranged on the sector-shaped regulation and control plate (18), the transmission gear (1903) is arranged at one end of the second control motor (1902), the input ends of the second control motor (1902) and the first control motor (10) are connected with the output end of the temperature sensing control module (5), the transmission gear (1903) is meshed and connected with one side of the arc-shaped inner rack (1904), and the arc-shaped inner rack (1904) is movably arranged in the sector-shaped regulation and control plate (18), an arc-shaped connecting strip (1905) is arranged on the other side of the arc-shaped inner rack (1904), a connecting block (1906) is arranged on one side of the arc-shaped connecting strip (1905), the connecting block (1906) is movably arranged in an arc-shaped movable groove (1907), the movable micro-control fan-shaped plate (1908) is movably arranged in a fixed micro-control fan-shaped plate (1909), the fixed micro-control fan-shaped plate (1909) is arranged in a fan-shaped regulating and controlling plate (18), a connecting spring (1910) is arranged on one side of the movable micro-control fan-shaped plate (1909), and the other end of the connecting spring (1910) is arranged in the fixed micro-control fan-shaped plate (1909).
3. The cage culture ventilation control system of claim 1, wherein: the limiting clamping blocks (15) correspond to the limiting clamping grooves (13) in arrangement position and are arranged in the same number, and the length of the connecting round blocks (14) is equal to the depth of the round connecting grooves (12).
4. The cage culture ventilation control system of claim 1, wherein: the fan-shaped regulation and control plate (18) corresponds to the first regulation and control through groove (9) in arrangement position, and the number of the groups is the same, and at least two groups are arranged.
5. The cage culture ventilation control system of claim 2, wherein: the arc-shaped inner racks (1904) correspond to the transmission gears (1903) in arrangement positions and are arranged in the same number, and the tooth form angle coefficients and the modulus of the arc-shaped inner racks are arranged in the same manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011426501.8A CN112568143B (en) | 2020-12-09 | 2020-12-09 | Cage culture ventilation control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011426501.8A CN112568143B (en) | 2020-12-09 | 2020-12-09 | Cage culture ventilation control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112568143A true CN112568143A (en) | 2021-03-30 |
| CN112568143B CN112568143B (en) | 2022-09-23 |
Family
ID=75127794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011426501.8A Active CN112568143B (en) | 2020-12-09 | 2020-12-09 | Cage culture ventilation control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112568143B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115237185A (en) * | 2022-09-02 | 2022-10-25 | 珠海格力电器股份有限公司 | Breeding house dust removal regulation and control method and device and dust removal system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013217625A (en) * | 2012-04-12 | 2013-10-24 | Daiwa House Industry Co Ltd | Ventilating device |
| CN206092479U (en) * | 2016-09-29 | 2017-04-12 | 温州科技职业学院 | Auxiliary ventilating fan variable frequency speed governing(VFSG) ware based on PLC control |
| CN206314401U (en) * | 2016-12-22 | 2017-07-11 | 山西晋龙养殖股份有限公司 | A kind of new hen house |
| CN206413576U (en) * | 2016-12-13 | 2017-08-18 | 城步天元农业开发有限公司 | Coop ventilation heat preservation mechanism |
| WO2018072528A1 (en) * | 2016-10-21 | 2018-04-26 | 新希望六和饲料股份有限公司 | Premixing ventilated chicken coop |
| CN109566461A (en) * | 2018-11-21 | 2019-04-05 | 温州市联峰电器有限公司 | A kind of ventilation fan |
-
2020
- 2020-12-09 CN CN202011426501.8A patent/CN112568143B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013217625A (en) * | 2012-04-12 | 2013-10-24 | Daiwa House Industry Co Ltd | Ventilating device |
| CN206092479U (en) * | 2016-09-29 | 2017-04-12 | 温州科技职业学院 | Auxiliary ventilating fan variable frequency speed governing(VFSG) ware based on PLC control |
| WO2018072528A1 (en) * | 2016-10-21 | 2018-04-26 | 新希望六和饲料股份有限公司 | Premixing ventilated chicken coop |
| CN206413576U (en) * | 2016-12-13 | 2017-08-18 | 城步天元农业开发有限公司 | Coop ventilation heat preservation mechanism |
| CN206314401U (en) * | 2016-12-22 | 2017-07-11 | 山西晋龙养殖股份有限公司 | A kind of new hen house |
| CN109566461A (en) * | 2018-11-21 | 2019-04-05 | 温州市联峰电器有限公司 | A kind of ventilation fan |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115237185A (en) * | 2022-09-02 | 2022-10-25 | 珠海格力电器股份有限公司 | Breeding house dust removal regulation and control method and device and dust removal system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112568143B (en) | 2022-09-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112568143B (en) | Cage culture ventilation control system | |
| CN107047370B (en) | Chick raising system | |
| CN106962224B (en) | Broiler chicken breeding equipment | |
| CN206380496U (en) | A kind of adjustable bee-raising hive of frame | |
| CN208639346U (en) | Novel cultivation fish pond | |
| CN216567732U (en) | Egg turning device for hatching chicks | |
| CN210610617U (en) | Automatic homothermal chicken coop ventilation unit | |
| CN108012993B (en) | Standardized locust cultivation method and cultivation shed thereof | |
| CN214758618U (en) | Layered fry incubator capable of adjusting illumination angle | |
| CN219556026U (en) | Be used for chinese grass tortoise to breed with throwing seedling device | |
| CN209995121U (en) | ecological environment-friendly chicken house for free-range chicken in mountainous area | |
| CN218337471U (en) | Heat preservation chicken coop that apricot flower chicken was bred | |
| CN217608945U (en) | Automatic accuse temperature is bred chicken and is cultivated chicken coop | |
| CN219352751U (en) | Layer breeding colony house | |
| CN106973822B (en) | Chick breeding cage | |
| CN208597553U (en) | Winter constant temperature circulating is breeded fish cell system | |
| CN218218763U (en) | Breed canopy with adjust air current function | |
| CN105766693A (en) | Cage aviary equipment and ventilation-cooling regulation method for cage aviary | |
| CN217487275U (en) | Poultry multi-stage mixed breeding house | |
| CN214155848U (en) | Feeding adjusting device applied to feeding system for brooding and breeding chickens | |
| CN219108476U (en) | Hive nest door | |
| CN217564479U (en) | Heating cultivation shed for mutton sheep cultivation | |
| CN214961910U (en) | Five black young chicks hatching artificial containers | |
| CN218184714U (en) | Device is put in with seedling to aquaculture | |
| CN219437845U (en) | Adjustable ventilation's calf island |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |