CN216452653U - Heat preservation canopy of brooding of raising chickens in field - Google Patents

Abstract

The utility model provides a heat preservation shed for raising chickens and brooding in the field of livestock and poultry breeding equipment technology, which comprises a chicken raising shed, wherein the chicken raising shed is formed by two top plates and two bottom plates, so that the chicken raising shed is convenient to fold and carry; plastic cloth is laid on the bottom plate in the chicken coop, and wood chips are laid on the plastic cloth, so that the wood chips are convenient to replace, and the cleanness and sanitation in the chicken coop are kept; the staple through the feeding trough bottom combines the fixed chicken coop of raising in ground nail, can adapt to different aquaculture environment, the convenience is in the mountain region, use under the different conditions in the woodland, transport, store, it is convenient to build, it is effectual to keep warm, the survival rate of raising broods is high, be convenient for in time intervene the environment of raising broods, develop for the chick and provide good growing environment, can be according to cultivateing needs at any time quick travel, it is difficult to have solved the open-air temperature control of raising chickens that exists among the prior art of raising broods, the chicken coop moves the difficulty, the problem that mobile chicken coop does not possess heat preservation child care function has extensive popularization and application and worth in beasts and birds farming equipment technical field.

Description

Heat preservation canopy of brooding of raising chickens in field

Technical Field

The utility model relates to the technical field of livestock and poultry breeding equipment, in particular to a thermal-insulation shed for raising chickens and brooding in the field.

Background

With the progress of modernization, the technology of industrial chicken raising is continuously developed, various henhouses with high centralized automation degree are continuously generated, the requirement of the centralized industrial breeding technology is complex, the construction and management cost is high, meanwhile, the feed chicken automatically bred in the centralized factory lacks the chicken flavor, and people begin to pursue the free-range chicken with good taste, strong wild flavor, high nutritional value and no pollution. The free-range chicken is similar to wild chicken, and has bright feather and rough and hard chicken claw skin. The free-range chicken has thin and compact skin and fine pores, and is arranged in a net shape. The common chicken has thinner skin and thinner hair, but the chicken is not as delicious as the free-range chicken. The fast chicken has thick and loose skin and thicker pores. The most important characteristic of the free-range chickens is that subcutaneous fat is uniformly distributed, and the skin color of the fast-range chickens is relatively smooth and white. After the free-range chicken is well roasted, the bouillon is transparent and clear, the fat is agglomerated on the surface of the soup and has fragrance, while the fast-range chicken is turbid in bouillon and less in surface fat agglomeration.

However, the free-range chicken brooding is a short board, the temperature control is difficult in the field environment, adult chickens can be raised in a free-range mode, the body temperature of the chicks needs to be maintained by means of heating when the chicks are 0-4 weeks old, otherwise the chicks are easy to die, the cost is high when the chicks are directly raised, the chicken brooding room in the field environment is difficult to move, and the mobile chicken coop does not have the heat preservation and conservation functions.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems that the temperature control for raising chickens in the field is difficult, the henhouse is difficult to move and the mobile henhouse does not have the heat preservation and conservation functions in the prior art, the utility model aims to provide the heat preservation shed for raising chickens in the field, which is convenient to fold and carry as the two top plates and the two bottom plates form the henhouse; lay the plastic cloth on the infrabasal plate of raising chickens in the canopy, the saw-dust is laid on the plastic cloth, be convenient for change the saw-dust and reduce clean health in the humidity keeps raising chickens' canopy, staple through the bottom of the feeding trough combines the fixed canopy of raising chickens of ground nail, establish the backup pad in the canopy of raising chickens, be used for hanging the heat lamp and provide suitable temperature for raising chickens scattered, can adapt to different aquaculture environment, the convenience is in the mountain region, use under the different conditions in the woodland, transport, store, it is convenient to build, it is effectual to keep warm, the survival rate of brooding is high, can be according to cultivateing needs quick travel at any time, the open-air temperature control of raising chickens who exists among the prior art of having solved is difficult, the chicken coop moves the difficulty, the problem that mobile chicken coop does not possess heat preservation nursery function, have extensive popularization and application and worth in beasts and birds cultured equipment technical field.

The utility model is realized by the following technical scheme:

the utility model provides a heat preservation shed for raising chickens in the field, which comprises a chicken raising shed, wherein the chicken raising shed comprises two top plates and two bottom plates, the two top plates are movably connected through a first connecting sheet, the two bottom plates are fixedly connected through a second connecting sheet, and one ends of the top plates, far away from the connection of the first connecting sheet, are movably connected with one sides of the bottom plates, far away from the second connecting sheet; food taking holes are formed in one side of the lower end of the top plate, limit fences are arranged in the food taking holes, and a plurality of fixing holes are formed in one side of the bottom plate, which is far away from the second connecting sheet and is connected with the top plate; two supporting plates are arranged below the two top plates and movably connected through a third connecting piece, and one end of each supporting plate, which is far away from the third connecting piece, is movably connected with the top plate; a heating mechanism is arranged below the supporting plate; the chicken coop is characterized in that plastic cloth is laid on the bottom plate, wood chips are laid on the plastic cloth, and triangular plugging curtains are arranged at two ends of the chicken coop.

In the utility model, the inner side of the top plate is provided with a storage groove, and the height of the storage groove is adapted to the sum of the widths of the bottom plate and the support plate.

In the utility model, the sum of the lengths of the two support plates is greater than the distance between the joint of the support plate and the top plate and the first connecting piece.

According to the feeding trough, the two ends of the two top plates are respectively provided with the feeding trough, the bottom of the feeding trough is fixedly connected with the fixing nail, the fixing hole close to one side of the food taking hole is matched with the fixing nail at the bottom of the feeding trough, and the fixing hole of the bottom plate far away from the food taking trough is internally provided with the ground nail.

In the utility model, nylon hasps are arranged on the edge of the plugging curtain, the two ends of the top plate and the two ends of the bottom plate, and the nylon hasps on the edge of the plugging curtain are matched with the nylon hasps on the top plate and the bottom plate.

According to the utility model, the heating mechanism comprises a heat insulation plate, a reflecting plate and a heating lamp, wherein a hanging ring is arranged at the top of the heat insulation plate, the top of the reflecting plate is fixedly connected with the bottom of the heat insulation plate, and the heating lamp is fixedly connected with the bottom of the reflecting plate; the bottom of the supporting plate is provided with a groove, a hanging rod is arranged in the groove, and the hanging rod is matched with a hanging ring on the heat insulation plate.

In the utility model, the middle part of the feeding trough is provided with a clapboard.

According to the utility model, the plugging curtain is provided with the operation curtain, the nylon buckles are arranged on the operation curtain and the plugging curtain, and the nylon buckles on the operation curtain and the nylon buckles on the plugging curtain are arranged in a matching manner.

In the utility model, the upper part of the outer side of the top plate is provided with the solar panel.

In the utility model, a heat insulation material is arranged in the inner lining of the plugging curtain.

Compared with the prior art, the heat preservation shed for raising chickens in field provided by the utility model has the following beneficial effects:

(1) enclose into through two roofs and two bottom plates and raise chickens canopy, the folding transport of being convenient for transports, stores, builds the convenience, can be according to cultivateing needs at any time quick travel.

(2) The plastic cloth is laid on the bottom plate in the chicken coop, the sawdust is laid on the plastic cloth, the sawdust is convenient to replace in time to clean excrement, moisture is reduced, replacement is convenient and quick, stress response of chicks is relieved when padding is replaced, and cleanness and sanitation in the chicken coop are kept.

(3) The fixing nails at the bottom of the feeding trough are combined with the ground nails to fix the two ends of the bottom plate, so that the chicken feeding trough is convenient for chicks to eat and drink water, and the chicken raising shed can be fixed to prevent deformation or displacement of the chicken raising shed.

(4) The chicken shed is internally provided with a supporting plate for hanging heating lamps to provide proper temperature for free-range chicks, the solar panel is arranged on the top plate to provide part of energy for the heating lamps and reduce the electricity charge expenditure, and the upper part of the supporting plate can be used for placing a storage battery or other feeding tools connected with the solar panel to reduce the floor area; the heat preservation effect is good, and the survival rate of brooding is high, can be according to the cultivation needs at any time quick travel, has solved the temperature control of raising chickens in the field that exists among the prior art and has been difficult, and the chicken coop is moved the difficulty, and the problem that mobile chicken coop does not possess the heat preservation function has extensive popularization and application and worth in beasts and birds cultured equipment technical field.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a side view of the present invention;

FIG. 4 shows a side cross-sectional view of the present invention;

FIG. 5 is an enlarged view of a portion of the utility model at A in FIG. 4;

FIG. 6 is a schematic view of the folding process of the present invention;

FIG. 7 is a schematic view of the present invention in a folded state;

FIG. 8 shows a top view of a feed trough according to the utility model;

FIG. 9 is a schematic view showing the structure of the heat-insulating panel according to the present invention;

fig. 10 is a schematic structural view of the support plate according to the present invention.

Reference numerals: 1-top plate, 2-bottom plate, 3-first connecting plate, 4-second connecting plate, 5-feeding hole, 6-limiting fence, 7-fixing hole, 8-supporting plate, 9-third connecting plate, 10-plastic cloth, 11-wood chip, 12-blocking curtain, 13-accommodating groove, 14-feeding groove, 15-fixing nail, 16-ground nail, 17-heat insulation plate, 18-reflecting plate, 19-heating lamp, 20-hanging ring, 21-groove, 22-hanging rod, 23-partition plate, 24-operating curtain and 25-solar panel.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to fig. 1 to 10, and it is obvious that the described embodiments are some, not all embodiments of 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", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

For convenience of description, the description of the relative position relationship of each component in a field chicken-raising thermal-insulation shed is described according to the layout mode of the attached figure 1, such as: the positional relationship of up, down, left, right, etc. is determined according to the layout direction of fig. 1.

With reference to fig. 1 to 10, an embodiment of the present invention provides a field chicken raising and brooding thermal insulation shed, which includes a chicken raising shed, where the chicken raising shed includes two top plates 1 and two bottom plates 2, the two top plates 1 are movably connected by a first connecting plate 3, the two bottom plates 2 are fixedly connected by a second connecting plate 4, and one end of the top plate 1, which is far away from the first connecting plate 3, is movably connected with one side of the bottom plate 2, which is far away from the second connecting plate 4; food taking holes 5 are formed in one side of the lower end of the top plate 1, limit fences 6 are arranged in the food taking holes 5, and a plurality of fixing holes 7 are formed in one side, far away from the second connecting sheet 4, of the bottom plate 2 and connected with the top plate 1; two supporting plates 8 are arranged below the two top plates 1, the two supporting plates 8 are movably connected through a third connecting piece 9, and one end, far away from the third connecting piece 9, of each supporting plate 8 is movably connected with the top plate 1; a heating mechanism is arranged below the supporting plate 8; the chicken coop is characterized in that plastic cloth 10 is laid on the bottom plate 2, wood chips 11 are laid on the plastic cloth 10, and triangular plugging curtains 12 are arranged at two ends of the chicken coop.

Referring to fig. 4, 6 and 7, in the present invention, the inner side of the top plate 1 is provided with a storage groove 13, the height of the storage groove 13 is adapted to the sum of the widths of the bottom plate 2 and the support plate 8, and the storage groove 13 is used for storing the bottom plate 2 and the support plate 8 when the chicken coop is folded, so as to greatly reduce the volume of the chicken coop after folding, facilitate storage, or move rapidly at any time according to the cultivation requirement.

Referring to fig. 3, 4 and 6, in the present invention, the sum of the lengths of the two supporting plates 8 is greater than the distance between the joint of the supporting plate 8 and the top plate 1 and the first connecting piece 3, so that the two supporting plates 8 do not interfere with the spreading angle of the two top plates 1, and a heating mechanism can be hung on the bottom of the supporting plate 8 or other feeding tools can be placed and stored on the top of the supporting plate 8.

Referring to fig. 1-4, in the present invention, feeding grooves 14 are formed at both ends of two top plates 1, fixing nails 15 are fixedly connected to bottoms of the feeding grooves 14, fixing holes 7 near one side of the food taking hole 5 are correspondingly arranged with the fixing nails 15 at bottoms of the feeding grooves 14, ground nails 16 are arranged in the fixing holes 7 of the bottom plate 2 far away from the feeding grooves 14, both ends of the bottom plate 2 at the bottom of the chicken shed are fixed by the fixing nails 15 at the bottoms of the feeding grooves 14 in combination with the ground nails 16, and the chicken shed can be fixed while the feeding grooves 14 are fixed, so as to prevent the chicken shed from deforming or displacing.

Referring to fig. 1, in the present invention, the edge of the blocking curtain 12, the two ends of the top plate 1, and the two ends of the bottom plate 2 are all provided with velcro fasteners, and the velcro on the edge of the blocking curtain 12 is adapted to the velcro on the top plate 1 and the bottom plate 2, so that the blocking curtain 12 prevents the chicks from running out of the chicken coop and dying due to freezing, and simultaneously reduces the temperature change in the chicken coop, so as to keep the brooding temperature stable.

Referring to fig. 3-5 and fig. 9-10, in the present invention, the heating mechanism includes a heat insulation board 17, a reflector 18 and a heating lamp 19, the top of the heat insulation board 17 is provided with a hanging ring 20, the top of the reflector 18 is fixedly connected with the bottom of the heat insulation board 17, and the heating lamp 19 is fixedly connected with the bottom of the reflector 18; 8 bottoms of backup pad are equipped with recess 21, be equipped with peg 22 in the recess 21, peg 22 suits the setting with link 20 on the heat insulating board 17, hangs heating mechanism through backup pad 8, is convenient for provide suitable temperature for the canopy of raising chickens, prevents that the temperature of brooding when the difference in temperature is big from crossing low excessively and causing the chick to receive the death of freezing.

Referring to fig. 8, in the present invention, a partition 23 is disposed in the middle of the feeding trough 14, and the feeding trough 14 is divided into a feeding area and a drinking area by the partition 23, so as to provide necessary nutrition and drinking water for the growth and development of the chicks and promote the metabolism of the chicks.

Referring to fig. 1, fig. 3 and fig. 4, in the present invention, an opening is formed in the blocking curtain 12, an operation curtain 24 is arranged outside the opening, velcro fasteners are respectively arranged on the operation curtain 24 and the blocking curtain 12, and the velcro on the operation curtain 24 is adapted to the velcro on the blocking curtain 12, so that chicks can be placed, medicine intervention can be performed, a heating mechanism can be suspended, and the like through the operation curtain 24, which is convenient to use, and the velcro is convenient to cover the opening after the operation is completed, so as to prevent temperature loss.

Referring to fig. 1 and 10, in the present invention, a solar panel 25 is disposed on the upper portion of the outer side of the top plate 1 to provide a part of energy for the heating lamp 19, so as to reduce the electric charge and not to affect the folding and transportation.

Referring to fig. 1, fig. 3 and fig. 4, in the present invention, a thermal insulation material is disposed in the inner liner of the blocking curtain 12 to further reduce the death of the chicks caused by freezing due to temperature changes.

When the utility model is used, firstly, a suitable breeding environment is selected in a field, the disinfected chicken shed is taken out and spread, the bottom plates 2 are placed on the ground downwards, when the two bottom plates 2 are parallel, and the two ends of the two top plates 1 and the two bottom plates 2 are spread to be triangular, the chicken shed is spread in place, the chicken shed is inserted into the ground from the fixing holes 7 on the two sides of the bottom plates 2 through the fixing nails 15 at the bottom of the feeding groove 14 in combination with the ground nails 16 to fix the chicken shed, and complete feed and clean drinking water are respectively added to the two ends of the partition plate in the feeding groove 14 in time; a layer of plastic cloth 10 is laid on the bottom plate 2 below the top plate 1, and then wood chips 11 with a certain thickness are uniformly laid on the plastic cloth 10, so that the heat preservation is realized for the growing environment of the chicks, the excrement of the chicks is received, the wood chips 11 can be replaced by pulling the plastic cloth 10 regularly, the excrement can be cleaned, the moisture is reduced, the cleanness and the sanitation in the chicken shed are kept, and the bacteria breeding is reduced; the blocking curtains 12 are fixed at two ends of the chicken coop through nylon fasteners, after the blocking curtains 12 are ensured to be sealed with the bottom plate 2 and the top plate 1, the heating mechanism extends into the lower end of the supporting plate 8 through the blocking curtains 12, the top of the heat insulation plate 17 on the heating lamp 19 is provided with a hanging ring 20, the hanging ring 20 is placed into the groove 21 at the bottom of the supporting plate 8 and then moves downwards until a hanging rod 22 in the groove 21 hooks the hanging ring 20 at the top of the heat insulation plate 17, and then the heating lamp 19 can be fixed; the operation curtain 24 on the blocking curtain 12 is used for placing the chicks with broken shells into the chicken shed, and finally the operation curtain 24 and the blocking curtain 12 are fixed through the nylon fastener tape, so that the heat in the chicken shed is prevented from being greatly lost due to the fast air flow; the heating lamps 19 can be turned on when the temperature is too low to heat the chicken in the chicken shed, so that the chickens are prevented from being frozen and dead, the solar panel 25 is arranged on the top plate 1 and can provide part of energy for the heating lamps 19, and the electricity charge expense is reduced; the chicks can supplement nutrition or moisture from the feeding groove 14 through the feeding hole 5 on one side of the lower end of the top plate 1, the limit fence 6 is arranged in the feeding hole 5, the chicks are prevented from robbing water and robbing materials, the chicks are prevented from running out of the feeding hole 5, meanwhile, the ventilation in the chicken shed can be kept, and the air quality in the chicken shed is improved; during cultivation, the temperature and the humidity are controlled according to the number of days for hatching the chicks, and the temperature and the humidity are stopped changing until the difference between the temperature and the external temperature is not more than 2 ℃ and the difference between the humidity is not more than 5 percent, so that the chicks can be released from the heat preservation shed for free-ranging; when the chicken raising shed needs to be moved, the heating mechanism, the plastic cloth 10, the wood chips 11 and the like in the chicken raising shed are taken out, the fixing nails 15 at the bottom of the feeding grooves 14 are taken down from the fixing holes 7, the ground nails 16 are pulled out, the third connecting sheet 9 is pulled upwards, the included angle between the two top plates 1 is reduced until the bottom plate 2 and the supporting plate 8 are both accommodated in the accommodating grooves 13 on the top plates 1, when the two top plates 1 are parallel, can accomplish the folding of chicken coop, be convenient for store, or according to cultivateing needs at any time quick travel, it is effectual to keep warm, the survival rate of brooding is high, high durability and convenient operation, be convenient for in time intervene environment of brooding, develop for the chick and provide good growing environment, can be according to cultivateing needs at any time quick travel, it is difficult to have solved the open-air temperature control of brooding of raising chickens that exists among the prior art, the chicken coop moves the difficulty, the problem that mobile chicken coop does not possess heat preservation child care function has extensive popularization and application and worth in beasts and birds cultured equipment technical field.

The standard parts used in the application document can be purchased from the market, and can be customized according to the description of the specification and the description of the attached drawings, the specific connection mode of each part adopts conventional means such as mature bolts, rivets, welding and the like in the prior art, and machines, parts and equipment adopt conventional models in the prior art.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. The utility model provides an open-air heat preservation canopy of brooding of raising chickens, includes the canopy of raising chickens, the canopy of raising chickens includes roof (1) and bottom plate (2), its characterized in that: the number of the top plates (1) and the number of the bottom plates (2) are two, the two top plates (1) are movably connected through first connecting sheets (3), the two bottom plates (2) are fixedly connected through second connecting sheets (4), and one ends, far away from the connection of the first connecting sheets (3), of the top plates (1) are movably connected with one sides, far away from the second connecting sheets (4), of the bottom plates (2); food taking holes (5) are formed in one side of the lower end of the top plate (1), limit fences (6) are arranged in the food taking holes (5), and a plurality of fixing holes (7) are formed in one side, far away from the second connecting sheet (4) and the connecting part of the bottom plate (2) and the top plate (1); two supporting plates (8) are arranged below the two top plates (1), the two supporting plates (8) are movably connected through a third connecting piece (9), and one end, far away from the third connecting piece (9), of each supporting plate (8) is movably connected with the top plate (1); a heating mechanism is arranged below the supporting plate (8); the chicken coop is characterized in that plastic cloth (10) is laid on the bottom plate (2), wood chips (11) are laid on the plastic cloth (10), and triangular plugging curtains (12) are arranged at two ends of the chicken coop.

2. The thermal shed for raising chickens in the field as claimed in claim 1, wherein: the inner side of the top plate (1) is provided with a storage groove (13), and the height of the storage groove (13) is adapted to the sum of the widths of the bottom plate (2) and the supporting plate (8).

3. The thermal shed for raising chickens in the field as claimed in claim 1, wherein: the sum of the lengths of the two supporting plates (8) is greater than the distance between the joint of the supporting plates (8) and the top plate (1) and the first connecting piece (3).

4. The thermal shed for raising chickens in the field as claimed in claim 1, wherein: two roof (1) both ends all are equipped with feeds groove (14), feed groove (14) bottom fixedly connected with staple (15), are close to fixed orifices (7) of getting food hole (5) one side and feed the staple (15) of groove (14) bottom and suit the setting, are equipped with ground nail (16) in fixed orifices (7) of groove (14) are kept away from in bottom plate (2).

5. The thermal shed for raising chickens in the field as claimed in claim 1, wherein: the edge of the plugging curtain (12), the two ends of the top plate (1) and the two ends of the bottom plate (2) are respectively provided with a nylon hasp, and the nylon hasps at the edge of the plugging curtain (12) are matched with the nylon hasps on the top plate (1) and the bottom plate (2).

6. The thermal shed for raising chickens in the field as claimed in claim 1, wherein: the heating mechanism comprises a heat insulation plate (17), a reflecting plate (18) and a heating lamp (19), wherein a hanging ring (20) is arranged at the top of the heat insulation plate (17), the top of the reflecting plate (18) is fixedly connected with the bottom of the heat insulation plate (17), and the heating lamp (19) is fixedly connected with the bottom of the reflecting plate (18); the heat insulation board is characterized in that a groove (21) is formed in the bottom of the supporting plate (8), a hanging rod (22) is arranged in the groove (21), and the hanging rod (22) is matched with a hanging ring (20) on the heat insulation board (17).

7. The thermal shed for raising chickens in the field as claimed in claim 4, wherein: the middle part of the feeding groove (14) is provided with a clapboard (23).

8. The thermal shed for raising chickens in the field as claimed in claim 5, wherein: be equipped with operation curtain (24) on shutoff curtain (12), be equipped with velcro on operation curtain (24) and shutoff curtain (12), velcro on operation curtain (24) and the nylon fastener on shutoff curtain (12) suit the setting.

9. The thermal shed for raising chickens in the wild field as claimed in claim 1, wherein: and a solar panel (25) is arranged on the upper part of the outer side of the top plate (1).

10. The thermal shed for raising chickens in the wild field as claimed in claim 8, wherein: the inner lining of the plugging curtain (12) is internally provided with a heat insulation material.

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