Energy-conserving ecological integration poultry house
Technical Field
The utility model relates to a livestock-raising equipment field specifically is an energy-conserving ecological integration poultry house.
Background
At present, the intensive livestock breeding environment is poor, so that the animal health is excited or outbreaks of potential diseases, such as blue ears, pseudorabies, erysipelas, diarrhea, foot-and-mouth disease, respiratory diseases and the like, under the influence of climates in different seasons, the operation cost is increased, and the breeding cost is increased. The swinery is poor in health and frequent in disease, and one of the biggest reasons is caused by the environment. The existing animal houses can also cause cost increase in heating in winter, the heating modes comprise material energy consumption such as an electric heating lamp, an electric heating fan, a diesel oil heater, a coal-fired boiler, hot water floor heating, a hot water fan, hot water fins, natural gas and firewood heating, and the heating modes are not favorable for environmental protection. In winter, most of the existing animal houses are designed with ventilation modes and the like, and the environmental temperature in the house is ensured at the cost of sacrificing the health of animals during operation regulation and control; the harmful substances such as ammonia gas, hydrogen sulfide, carbon dioxide, skatole, indole, dust, humidity and the like which exceed the standard of harmful gases are increased, so that the problems of normal development, healthy growth and the like of other organ systems are caused. The humidity and air quality in the existing livestock house are inconsistent in front, middle, back, upper, middle and lower and each area (three-layer nine-area for short) due to the design of a ventilation process.
The ventilation mode of present pig house all is the pipeline air supply at present, also carries out the interior air exchange of house through the mode of horizontal air inlet, furred ceiling air exhaust promptly. However, in this method, when ventilation is performed in winter, the whole temperature layer in the house is divided into upper, middle and lower parts, cold air enters the air duct, and when air is distributed transversely, the cold air is directly blown around the pigs, and the air temperature causes cold stress to the pigs. The pig suffers from pricking, diarrhea and fever, and is worried long in appearance and uncomfortable in prone position, so that the pig is poor in health and low in welfare. In addition, this mode ventilation mainly adopts the wind speed when summer, sprays evaporation cooling, and the air inlet does not do the cooling and handles, gets into the wind channel after the direct filtration, and every circle of cloth wind has regularly separated the spraying cooling again, leads to the too big swinery stress of wind speed, and the temperature in spraying is low, spouts the pig and can lead to the pig to be uncomfortable on one's body, produces cold and hot stress, and healthy resistance descends. Meanwhile, due to high humidity and heat in the pigsty, the feed intake of the pigsty is reduced, the daily gain is reduced, and the market-selling age is delayed. And the water consumption of the cooling mode is large, the water after being sprayed and cooled directly flows to the excrement ditch to generate sewage, the sewage quantity is increased to pressurize environment protection, and the treatment cost is increased. This mode is when ventilating, can only bring slight fodder powder, dander, excrement foam, dust, pig sneezing to the house top, and in the particle diameter, big or the heavy harmful substance of humidity, unable very first time discharge in the house, continuously ventilate and lead to harmful substance such as trench ammonia, hydrogen sulfide, skatole, indole to gush the pig aspect from the pig bottom, to the house top again, is a pollution and influence injury all the time to the aspect air quality of pig.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an energy-conserving ecological integration poultry house to solve the problem that proposes in the above-mentioned background art, the utility model provides a following technical scheme:
an energy-saving ecological integrated livestock shed comprises a livestock shed main body, wherein the livestock shed main body comprises an air inlet vertical surface and an air exhaust vertical surface which are opposite, an air distribution pipeline penetrates through the top end of the livestock shed main body between the air inlet vertical surface and the air exhaust vertical surface, a heat exchange channel penetrates through the bottom of the livestock shed main body between the air inlet vertical surface and the air exhaust vertical surface, a heat exchange pipe penetrates through the heat exchange channel, a positive pressure fan is arranged at one end, located on the air inlet vertical surface, of the heat exchange pipe, and the other end of the heat exchange pipe is communicated with the air distribution pipeline through a pipeline; the interior bottom of poultry house main part is equipped with leaks dropping board, is equipped with the vacuole excrement ditch below leaking dropping board, is equipped with excrement ditch exhaust pipe and/or is equipped with excrement ditch exhaust pipe in the interior top of vacuole excrement ditch side by side at the lateral surface of vacuole excrement ditch, excrement ditch exhaust pipe is linked together through exhaust pipe hole and vacuole excrement ditch, excrement ditch exhaust pipe one end is equipped with negative-pressure air fan, and this one end of excrement ditch exhaust pipe is linked together through pipeline and heat exchange corridor air inlet one end, and the other end of heat exchange corridor is equipped with the gas vent, and this gas vent is located exhaust facade one side.
According to the preferable technical scheme, the heat exchange tubes are multiple, the two ends of each heat exchange tube are respectively provided with an air inlet air collecting box and a heat exchange rear air collecting box, the air inlets of the heat exchange tubes are communicated with the air inlet air collecting boxes, the air outlets of the heat exchange tubes are communicated with the heat exchange rear air collecting boxes, the positive pressure fan is arranged in the air inlet air collecting boxes or on the outer side of the air inlet air collecting boxes, and the heat exchange rear air collecting boxes are communicated with the air distribution pipeline through pipelines.
As a preferred technical scheme, the air distribution pipeline is U-shaped, at least one row of air distribution holes are formed in the two sides of the air distribution pipeline respectively, a guide plate is arranged below the air distribution holes in the two outer sides of the air distribution pipeline respectively, and the angle of the guide plate can be adjusted.
As a preferable technical scheme, an air inlet of the heat exchange channel and an air inlet of the heat exchange tube are positioned on one side of an air inlet vertical surface of the livestock shed main body.
As a preferable technical scheme, an inner path of the livestock house is arranged in the livestock house main body in a penetrating manner, the heat exchange channel is positioned below the ground of the inner path of the livestock house, livestock breeding areas are respectively arranged on two sides of the inner path of the livestock house, and the excrement leaking plate is positioned at the bottom of the livestock breeding areas. If the manure leaking plate covers the whole bottom of the culture area, a full manure leaking mode scheme is formed, and the manure ditch exhaust pipe is arranged above the inner part of the liquid foam manure ditch. If the dung leaking plate covers partial areas of the culture area, for example, the area close to the walkway in the house, a half dung leaking mode scheme is formed, and the dung ditch exhaust pipe is arranged on the outer side surface of the liquid soaking dung ditch, and can also be made into a dung ditch exhaust pipe by a wall.
As a preferable technical scheme, the heat-exchange rear air collecting box is communicated with the air distribution pipeline through a vertical air supply pipe.
As preferred technical scheme, air inlet facade one side of poultry house main part is equipped with the house door, air inlet collection bellows is located the house door below, the exhaust facade one side of poultry house main part is provided with poultry house back door, heat exchange back collection bellows is located poultry house back door below the both sides of poultry house back door are equipped with a set of vertical blast pipe respectively to communicate respectively behind the heat exchange collection bellows and the cloth wind pipeline.
As a preferred technical scheme, the bottom end of the liquid foam manure ditch is provided with a manure discharge pipe.
As the preferred technical scheme, both sides of the top end in the livestock shed main body are fixedly provided with illuminating lamps.
As preferred technical scheme, the inner wall one side of poultry house main part is connected with the heat preservation apron through the pivot, the biggest movable angle of heat preservation apron is 90, the inside bilateral symmetry of poultry house main part is provided with the poultry house fence, and the equidistant inside that sets up at the poultry house main part of poultry house fence.
As the preferred technical scheme, the inside of poultry house main part is close to the equal fixed mounting feed bunk in one side of poultry house fence, the inside of poultry house main part is close to one side of feed bunk and all is provided with the trough.
As the preferred technical scheme, a temperature reduction water curtain is installed on the main wall of the livestock shed.
As an optimized technical scheme, the air distribution pipeline comprises a sealing cover plate, a guide plate and pull ropes, the outer top end of the air distribution pipeline is connected with the sealing cover plate through a hinge, air distribution holes are formed in two equal sides of the inside of the air distribution pipeline, the lower portions of the air distribution holes in the outer walls of the two sides of the air distribution pipeline are connected with the guide plate through rotating shafts respectively, a group of pull ropes are fixedly mounted on one side of the top end of the guide plate, and the pull ropes are sleeved on one side of the outer end of the air distribution pipeline. The angle of the guide plate can also be controlled by installing a stepping motor at one end or two ends of the guide plate, for example, the angle can be automatically adjusted according to the preset program and the air temperature, or the included angle of the guide plate can be manually adjusted according to the requirement.
As a preferable technical scheme, a negative pressure fan on a plate for exhausting air to the outside of the livestock shed is arranged on one side, which is positioned on the exhaust vertical surface of the livestock shed main body, above the liquid-soaking manure pit.
As a preferable technical scheme, one end of the excrement ditch exhaust pipe close to the exhaust vertical surface is also provided with a negative pressure fan for exhausting air to the outside of the house.
As the preferred technical scheme, an emergency ventilating window is arranged on the livestock shed main body.
As a further preferable technical scheme, the negative pressure fan is a negative pressure temperature control variable speed fan, and the positive pressure fan is a positive pressure temperature control variable speed fan.
Compared with the prior art, the beneficial effects of the utility model are that:
the air of outside air gets into from the air intake under the effect of malleation variable speed fan and air inlet collection bellows, through hot exchange pipe (get into the air and accomplish through the heat exchange and rise temperature or lower the temperature), gets into vertical blast pipe through the heat exchange of opposite side back collection bellows, and gas gets into poultry house main part upper portion cloth wind pipe through vertical blast pipe, and cloth wind pipe installation cloth wind hole, cloth wind hole is to the lower part air supply (also to supplying air in the poultry house main part). The middle part of the livestock shed main body is provided with an adjustable folding and side-hanging heat-insulation cover plate, the heat-insulation cover plate is adjusted up and down by taking one side of a wall body as an axis and is used for guiding wind and controlling downward wind direction or size, the air continuously reaches the bottom of the livestock shed main body downwards, the air at the middle upper part of the livestock shed main body is blown downwards through a wind distribution pipeline, toxic gas can be discharged out of the livestock shed through a trench negative pressure fan, the temperature is sucked into a liquid foam manure ditch through a manure leakage plate by matching with the trench negative pressure fan, then the toxic gas enters a manure ditch exhaust pipe (full manure leakage mode) in the liquid foam manure ditch or a manure ditch exhaust pipe at the side of the liquid foam manure ditch (semi-manure leakage mode), the air enters a heat exchange channel through the exhaust pipe and exchanges heat with the air which newly enters a heat exchange pipe from an air inlet and air collection box, and finally the air is discharged through an exhaust outlet, so that heat exchange circulation is realized.
In winter, the difference between the temperature of the fresh air and the sensible temperature of the swinery is considered, and the guide plate is adopted for adjusting the temperature upwards, so that the fresh air and the high-temperature air at the upper part in the house are mixed, exchanged and homogenized again, the temperature and the humidity of the fresh air are close to or reach the sensible temperature required by the swinery, and the health and the comfort of the swinery are ensured. Because the heated board can be adjusted, put down the heated board winter, can avoid directly blowing the pig body on the one hand, on the other hand can also have certain effect of gathering together to hot-air for the temperature in the little environment obtains certain promotion. On the contrary, the guide plate is adjusted down in summer, and the heated board is upwards opened, avoids upper portion hot-air to move down on the one hand, and on the other hand moves down the air and can directly give pig body cooling through the wind speed.
From the whole ventilation process design and the air walking route, the utility model has the advantages that after fresh air is distributed from the air distribution pipeline during ventilation, the flow guide direction is adjusted by the guide plate, the whole body moves from top to bottom, and the heat in the high-temperature area in the house can be driven downwards to reach the layer of the pig in winter, so that the requirement of the comfortable critical temperature of the body feeling of the pig is met; the upper hot air is prevented from moving down in summer. Meanwhile, harmful gases such as feces and urine volatile smell, pig body heat, body odor, leather scraps, pig hair, carbon dioxide, dust, excrement dust, harmful substances and the like in the house can all go downwards to the lower part of the plate, heavy substances fall into the liquid soaking excrement ditch, and light substances can be pumped away by a negative pressure machine through an excrement ditch exhaust pipe and enter a heat exchange channel for preheating exchange.
On the other hand, the air distribution pipeline can be connected into any cold air or warm air system, for example, after the summer fresh air is cooled by the cooling system, the fresh air can directly enter the air distribution pipeline, the air distribution pipeline adopts a U-shaped design, the cold air cannot sink to the lower part in the pipeline, the air is distributed by the air distribution holes, and the guide plate is opened and adjusted in the flow guide direction and the air volume according to the swinery condition. The liquid soaking manure ditch, the exhaust pipeline and the corridor at the bottom of the livestock shed main body are similar to a basement and are warm in winter and cool in summer, so that heat exchange can be carried out on inlet air through the heat exchange pipe; hot air in winter or in seasons with lower air temperature is generally gathered at the upper part of the livestock shed main body, the hot air at the upper part moves downwards and is sent into a bottom corridor, and external air enters the interior of the livestock shed main body after heat exchange of a bottom heat exchange pipe; in summer or in seasons with higher air temperature, cold air is gathered in the bottom corridor, so that the air in the heat exchange pipe is cooled and then enters the livestock shed main body, and the constant temperature in the livestock shed main body is realized through the two modes. In addition, this kind of air flow mode can make the interior pollutant gas of poultry house main part as far as, outside the poultry house main part of discharge, can keep the inside air of poultry house main part clean, and effectual improvement the device's practicality is convenient for the user to use, and is better for traditional mode.
The utility model discloses can be as required, the four seasons ventilates and all uses the malleation to combine negative-pressure air fan, in guaranteeing the house under humiture, the qualified circumstances of air quality, accomplish minimum ventilation mode to this satisfies the growth comfort level of pig.
The utility model discloses can reduce winter heating expense, the waste of high temperature, the healthy loss of heat stress and a large amount of water in summer reduces the sewage volume.
Drawings
Fig. 1 is a schematic structural view of the energy-saving ecological integrated animal house of the utility model;
fig. 2 is a schematic structural view of the exhaust vertical surface of the main body of the livestock shed in the energy-saving ecological integrated livestock shed;
fig. 3 is a schematic view of the internal structure and air flow of the exhaust vertical surface of the main body of the animal house in the energy-saving ecological integrated animal house of the present invention;
fig. 4 is a schematic side view of the air inlet vertical surface of the main body of the animal house in the energy-saving ecological integrated animal house of the utility model;
fig. 5 is a schematic structural view of an air inlet vertical surface of a main body of the animal house in the energy-saving ecological integrated animal house of the utility model;
fig. 6 is a schematic structural view of an air distribution pipeline in the energy-saving ecological integrated animal house of the utility model;
fig. 7 is a schematic structural view (overlooking) of an air inlet vertical face end of a livestock shed main body in the energy-saving ecological integrated livestock shed;
fig. 8 is the exhaust elevation end structure diagram (overlooking) of the main body of the energy-saving ecological integrated animal house of the utility model.
In the figure: 1. a livestock house main body; 2. a livestock house back door; 3. a ceiling; 4. an air distribution pipeline; 5. an emergency ventilation window; 6. an onboard negative pressure fan; 7. an air inlet and air collecting box; 8. a negative pressure fan; 9. a heat exchange tube; 10. a vertical blast pipe; 11. a dung leaking plate; 12. an excrement ditch exhaust pipe; 13. an exhaust port; 14. a liquid soaking manure pit; 15. a manure discharge pipe; 16. an illuminating lamp; 17. a heat-insulating cover plate; 18. livestock house fences; 19. a feed bunk; 20. a drinking trough; 21. a cooling water curtain; 22. a front door; 23. a positive pressure fan; 24. a heat exchange channel; 25. an air inlet vertical surface; 26. an exhaust facade; 27. a heat-exchange rear air collecting box; 28. an air inlet duct; 29. a breeding area; 401. sealing the cover plate; 402. air distribution holes; 403. a baffle; 404. and pulling a rope.
Detailed Description
Referring to fig. 1-8, the energy-saving ecological integrated animal house of the present invention comprises an animal house main body 1, wherein the animal house main body 1 comprises a ceiling 3, an air inlet vertical surface 25 and an air exhaust vertical surface 26 which are opposite to each other, an air distribution duct 4 is arranged between the air inlet vertical surface 25 and the air exhaust vertical surface 26 at the top end of the animal house main body 1 in a penetrating manner, a heat exchange channel 24 is arranged between the air inlet vertical surface 25 and the air exhaust vertical surface 26 at the bottom of the animal house main body 1 in a penetrating manner, a heat exchange tube 9 is arranged in the heat exchange channel 24 in a penetrating manner, one end of the heat exchange tube 9 located at the air inlet vertical surface is provided with a positive pressure fan 23, and the other end is communicated with the air distribution duct 23 through a duct; animal house main part 1's interior bottom is equipped with leaks dropping board 11, is equipped with vacuole excrement ditch 14 below leaking dropping board 11, is equipped with excrement ditch exhaust pipe 12 side by side at vacuole excrement ditch 14's lateral surface, excrement ditch exhaust pipe 12 is linked together through exhaust pipe hole and vacuole excrement ditch 14, excrement ditch exhaust pipe 12 one end is equipped with negative-pressure air fan 8, and this one end of excrement ditch exhaust pipe 12 is linked together through pipeline and heat exchange channel 24 air inlet one end, and the other end of heat exchange channel is equipped with the gas vent, and this gas vent is located exhaust facade one side.
In this example, the heat exchange tubes 9 are a plurality of tubes, and are distributed at equal intervals. An air inlet air collecting box 7 and a heat exchange rear air collecting box 27 are respectively arranged at two ends of a heat exchange pipe 9, an air inlet of the heat exchange pipe 9 is communicated with the air inlet air collecting box 7, an air outlet of the heat exchange pipe 9 is communicated with the heat exchange rear air collecting box 27, the positive pressure fan 23 is arranged in the air inlet air collecting box or outside the air inlet air collecting box, and the heat exchange rear air collecting box 27 is communicated with the air distribution pipeline 4 through a vertical air supply pipe 10. An air inlet duct 28 is further arranged outside the air inlet air collecting box 7 and is used for entering air from the outside of the air inlet vertical surface 25.
As shown in fig. 6, a row of air distribution holes 402 are respectively formed on both sides of the air distribution duct 4, a guide plate 403 is respectively disposed below the air distribution holes 402 on both outer sides of the air distribution duct 4, and an angle of the guide plate 403 is adjustable. Specifically, the air distribution pipeline 4 comprises a sealing cover plate 401, a guide plate 403 and a pull rope 404, the outer top end of the air distribution pipeline 4 is hinged to the sealing cover plate 401, air distribution holes 402 are formed in two equal sides of the inside of the air distribution pipeline 4 at equal intervals, the lower portions of the air distribution holes 402 in the outer walls of the two sides of the air distribution pipeline 4 are respectively connected with the guide plate 403 through a rotating shaft, a group of pull ropes 404 are fixedly mounted on one side of the top end of the guide plate 403, and the pull ropes 404 are sleeved on one side of the outer end of the air distribution pipeline 4. Therefore, the whole device can drive the adjusting guide plate 403 to change the angle through the pull rope 404, when the pull rope 404 lifts the adjusting guide plate 403, the air distribution hole 402 can be blocked, otherwise, after the pull rope 404 is loosened, the air distribution hole 402 can be opened.
As another embodiment, a stepping motor may be installed at one end or both ends of the air deflector 403, and the angle may be automatically adjusted according to the air temperature according to a preset program, or the size of the included angle of the air deflector may be manually adjusted according to the requirement.
In this case, the air inlet of the heat exchange shaft 24 and the air inlet of the heat exchange tube 9 are located on the air inlet vertical surface side of the animal house main body 1. The advantage of doing so is with air inlet and exhaust respectively in two different facades, can not inhaled when the waste gas is discharged, keeps the fresh of new trend.
In this example, the air inlet facade 25 one side of poultry house main part 1 is equipped with preceding house door 22, air inlet collection bellows 7 is located preceding house door 22 below, exhaust facade 26 one side of poultry house main part 1 is provided with poultry house back door 2, heat exchange back collection bellows 27 is located poultry house back door 2 below the both sides of poultry house back door 2 are equipped with a set of vertical blast pipe 10 respectively to communicate heat exchange back collection bellows 27 and cloth tuber pipe way 4 respectively.
In another embodiment, as shown in fig. 5, the air intake facade 25 further comprises an outer wall, a corridor is provided between the inner wall and the outer wall, and a side door is provided at the end of the corridor. The front door 22 is provided on the inner wall. A cooling water curtain 21 is arranged on the outer wall.
In this embodiment, an inner path is formed through the animal house body 1, the inner path is connected to the front door 22 and the rear door 2, the heat exchange duct 24 is located below the ground of the inner path, the livestock breeding areas 29 are respectively provided on both sides of the inner path, and the dung leaking plate 11 is located at the bottom of the livestock breeding areas 29 (the ground is paved by the dung leaking plate 11). There are two embodiments, one is a full manure-leaking mode, i.e. the manure-leaking plate 11 covers the whole bottom of the main area of the cultivation area 29, and the manure pit exhaust duct 12 is arranged above (or on one side of) the inside of the vacuolated manure pit 14; the other mode is a semi-feces leaking mode, namely the feces leaking plate covers partial areas of the culture area, such as the area close to the walkway in the house, and the feces ditch exhaust pipe 12 is arranged on the outer side surface of the liquid foam feces ditch 14, or the feces ditch exhaust pipe 12 can be built by walls.
In this case, the bottom end of the liquid manure pit 14 is provided with a manure discharge pipe 15. The excrement discharging pipe is used for timely discharging excrement outwards and carrying out next harmless treatment.
In this example, the inner wall one side of poultry house main part 1 is connected with heat preservation apron 17 through the pivot, the biggest movable angle of heat preservation apron 17 is 90, the inside bilateral symmetry of poultry house main part 1 is provided with poultry house fence 18, and the equidistant setting of poultry house fence 18 is in the inside of poultry house main part 1. And illuminating lamps 16 are fixedly arranged on two sides of the top end inside the livestock shed main body 1. A feeding trough 19 is fixedly arranged on one side, close to a livestock shed fence 18, of the interior of the livestock shed main body 1, and a drinking trough 20 is arranged on one side, close to the feeding trough 19, of the interior of the livestock shed main body 1.
In this embodiment, a cooling water curtain 21 is installed on the wall of the animal house body 1. In summer, the fresh air can be sent into the house through the cooling water curtain.
An upper negative pressure fan 6 for exhausting air to the outside of the livestock house is arranged on one side of the exhaust vertical surface 26 of the livestock house main body 1 above the liquid-soaking manure pit 14. One end of the excrement discharge pipe 12 close to the exhaust vertical surface 26 is provided with a negative pressure fan 8 for exhausting air to the outside of the house. The negative pressure branch machines at the two positions can directly discharge waste gas outside the house in summer. In addition, an emergency ventilation window 5 is also provided on the animal house body 1, in order to increase the ventilation efficiency if necessary.
In this example, the negative pressure fans 8 may be negative pressure temperature control variable speed fans, and the positive pressure fan 23 is a positive pressure temperature control variable speed fan.
The utility model discloses a theory of operation is: the external air enters the heat exchange pipe 9 under the action of the positive pressure fan 23 and the air inlet air collecting box 7, passes through the heat exchange pipe 9 (the entering air is heated or cooled through heat exchange), passes through the heat exchange on the other side, and then enters the vertical air supply pipe 10 (the vertical air supply pipe 10 is divided into two modes, one mode is that the vertical air supply pipes 10 are distributed on two sides, and the other mode is that the vertical air supply pipe 10 is one mode, the two modes are that a stockhouse rear door 2 can be installed when the stockhouse main body 1 is designed, the stockhouse rear door 2 is arranged on two sides, the stockhouse rear door 2 is not provided, and a channel directly enters the stockhouse rear door 2), fresh air enters the air distribution pipeline 4 on the upper portion of the stockhouse main body 1 through the vertical air supply pipe 10, the air distribution pipeline 4 is provided with air distribution holes 402, the air distribution holes 402 supply air to the lower portion (namely supply air to the stockhouse main body 1), and the air continues to the bottom of the stockhouse main body 1. Furthermore, air enters the liquid foam manure pit 14 from the manure leaking plate 11 at the bottom of the animal house main body 1, then enters the manure pit exhaust pipe 12 in the liquid foam manure pit 14 (full manure leaking mode) or the manure pit exhaust pipe 12 at the side of the liquid foam manure pit 14 (half manure leaking mode), enters the heat exchange channel 24 through the exhaust pipe 12, exchanges heat with air newly entering the heat exchange pipe 9 from the air inlet air collecting box 7, and finally is exhausted through the exhaust outlet 13. Thereby realizing a heat exchange cycle.
The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.