Low-energy-consumption precise ventilation system for hog house

Abstract

The invention relates to a low-energy-consumption precise ventilation system for a hog house, and belongs to the technical field of livestock feeding equipment. The low-energy-consumption precise ventilation system for the hog house comprises an air outlet device, a movable part and a control mechanism. The air outlet device is hung on the inner side of the feeding station; the movable part is used for being pushed by the pigs entering the feeding station to determine whether the pigs exist in the feeding station or not; the control mechanism is used for controlling the air outlet device to be switched between the opening state and the closing state according to whether pigs exist in the feeding station or not. Wherein the air outlet device is used for discharging air towards the shoulder and neck of a pig eating at a feeding trough in the feeding station. According to the low-energy-consumption precise ventilation system for the pig house, the body temperature of pigs in the feeding process can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of livestock breeding equipment, and in particular to a low-energy precision ventilation system for pig houses. Background Art

[0002] Pig houses are buildings specially used for raising pigs. In order to meet the growth needs of pigs, pig houses should have good ventilation, lighting, heat preservation and heat protection functions. The ventilation of pig houses has an important impact on the health and production performance of pigs. Proper ventilation can effectively introduce fresh air into the pig house and expel the dirty air containing microorganisms, dust, harmful gases and water vapor, thereby providing a comfortable living environment. Ventilation can also regulate and control the temperature and humidity of the pig house, which is crucial to providing a suitable growth environment.

[0003] The existing ventilation system can maintain the ambient temperature at a suitable temperature by controlling the overall air flow rate in the pig house. However, eating will cause the pig's body temperature to rise. When the body temperature rises above the pig's comfort range, it will affect the pig's appetite and cause heat stress, which will reduce the pig's feed intake and affect the pig's growth rate. Rising body temperature will also make pigs prone to sweating. When the ventilation system makes the air flow in the pig house faster, the sweat on the pig's body surface evaporates quickly, causing the pig's body temperature to drop rapidly. The pig's body temperature fluctuates, which increases the risk of disease. Summary of the invention

[0004] The purpose of this application is to provide a low-energy precision ventilation system for pig houses in order to address the above-mentioned problems, which can reduce the body temperature of pigs during eating and improve the above-mentioned problems.

[0005] This application is achieved through the following technical solutions:

[0006] In some embodiments, the present application provides a low-energy precision ventilation system for a pig house, which is used to blow air to pigs eating in a feeding station. The low-energy precision ventilation system for a pig house includes an air outlet device, a movable part and a control mechanism; the air outlet device is suspended on the inner side of the feeding station; the movable part is used to be pushed by pigs entering the feeding station to determine whether there are pigs in the feeding station; the control mechanism is used to control the air outlet device to switch between an open state and a closed state according to whether there are pigs in the feeding station; wherein the air outlet device blows air toward the shoulders and necks of pigs eating at the trough in the feeding station.

[0007] In the technical solution of the embodiment of the present application, the movable part is used to be pushed by the pigs entering the feeding station to determine whether there are pigs in the feeding station; the control mechanism is used to control the air outlet device to switch between the open state and the closed state according to whether there are pigs in the feeding station. When there are no pigs in the feeding station, the air outlet device is in the closed state. When there are pigs in the feeding station, the air outlet device will become the open state under the control of the control mechanism, shortening the working time of the air outlet device, thereby reducing the energy consumption of the low-energy precision ventilation system for the pig house provided by the present application, saving energy and being environmentally friendly; the body temperature of the pigs rises when they eat in the feeding station, and the air outlet device blows air toward the shoulders and necks of the pigs eating at the trough in the feeding station, and the wind takes away the heat from the body surface of the pigs in the feeding station, so that the body temperature of the pigs is reduced, thereby avoiding the loss of appetite and heat stress of the pigs caused by the temperature increase, and ensuring the health of the pigs. In addition, a drop in body temperature can also reduce the risk of pigs sweating while eating, thereby reducing the risk of pigs getting sick due to sudden changes in temperature caused by the rapid evaporation of sweat; the pig's shoulder and neck are rich in blood vessels, and when the pig's body temperature rises, the temperature rise in the pig's shoulder and neck is particularly obvious. The air outlet device blows air to the pig's shoulder and neck, which can use a smaller air volume to cool the pig's body surface. On the one hand, the air volume of the air outlet device is proportional to the amount of electricity required to drive the air outlet device. When the air volume used by the air outlet device is small, the amount of electricity required to drive the air outlet device is also small, thereby reducing the energy consumption of the air outlet device when it is working. On the other hand, the feeling on the pig's face is more obvious than other parts of the pig. The air outlet device avoids the pig's face and blows air to the pig, which can reduce the risk of the pig being frightened and stressed due to sudden wind blowing on the face.

[0008] In some embodiments, the air outlet device is liftably disposed at the feeding station, the control mechanism includes a transmission assembly, a movable part is liftably disposed at the feeding station, the transmission assembly is disposed between the movable part and the air outlet device, and the movable part is closer to the entrance of the feeding station than the air outlet device; wherein the movable part is used to be lifted up by the pigs entering the feeding station, and the transmission assembly guides the air outlet device to rise synchronously according to the rising size information of the movable part so that the air outlet device is directly facing the pig's shoulder and neck.

[0009] In the technical solution of the embodiment of the present application, even pigs raised in the same pig house will have differences in body size. Strong pigs are taller than ordinary pigs. The movable parts are lifted up by the pigs entering the feeding station and rise a certain distance according to the height of the pigs. The transmission component guides the air outlet device to rise synchronously according to the rising size information of the movable parts, so that the height of the air outlet device can be adjusted according to the body height of the pigs entering the feeding station, so that pigs of different sizes can rely on the air outlet device to lower their own temperature when entering the feeding station to eat, so that the low-energy precision ventilation system for pig houses provided by the present application can stably and effectively reduce the body temperature of pigs when eating.

[0010] In some embodiments, the movable member is provided with a limit block, and the movable member is slidably matched with the slide groove of the feeding station through the limit block, and the movable member is lifted and lowered along the slide groove.

[0011] In the technical solution of the embodiment of the present application, the movable part slides with the slide groove of the feeding station through a limit block. The slide groove limits the lifting direction of the movable part when it is lifted up by the pig, thereby reducing the risk of the movable part detaching from the feeding station due to the movement of the pig, and improving the structural stability of the low-energy precision ventilation system for pig houses provided in this application.

[0012] In some embodiments, the movable member includes a matching portion and a supporting portion, wherein the matching portion contacts and slidably matches with the feeding station, and the supporting portion has a supporting surface for contacting a pig entering the feeding station.

[0013] In the technical solution of the embodiment of the present application, the support part has a support surface for contacting the pig entering the feeding station, so that the contact area between the movable part and the pig's back skin is larger. When the pig lifts the movable part, the gravity of the movable part can be dispersed to the contact point between the support surface and the pig's back, thereby reducing the risk of excessive concentration of force applied to the pig by the movable part, causing injury to the pig's back skin.

[0014] In some embodiments, the movable part also includes a guide portion, which is arranged on a side of the support portion away from the air outlet device, and the guide portion is tilted in a direction away from the pigs entering the feeding station. The surface of the guide portion facing the pigs entering the feeding station is an arc surface that smoothly transitions with the support surface.

[0015] In the technical solution of the embodiment of the present application, the guide part is arranged on the side of the support part away from the air outlet device. When the pigs in the pen move toward the trough in the feeding station, the pigs' heads will first contact the guide part, and the guide part will be tilted in the direction away from the pigs entering the feeding station. The surface of the guide part facing the pigs entering the feeding station is an arc surface that smoothly transitions with the support surface, so that the pigs' heads will first contact the surface of the guide part facing the pigs entering the feeding station, and then contact the support part through the guide part, thereby gradually lifting the movable part.

[0016] In some embodiments, the transmission assembly includes a pull rope and multiple pulleys, the pulleys are rotatably arranged on the feeding station, the two ends of the pull rope are respectively connected to the movable part and the air outlet device, and the pull rope is supported by the multiple pulleys to pull the air outlet device up and down.

[0017] In the technical solution of the embodiment of the present application, the two ends of the pull rope are respectively connected to the movable part and the air outlet device. The pull rope is supported by multiple pulleys to pull the air outlet device up and down. The movement linkage between the movable part and the air outlet device is realized through the pull rope. The structure is simple, the transmission effect is intuitive and effective, and the difficulty of use and maintenance is relatively low.

[0018] In some embodiments, the air outlet device is connected to the air intake device through an air pipe, and the part connecting the air pipe and the air outlet device is a bendable hose. The transmission assembly also includes an elastic member, which is connected to the feeding station and the air outlet device, and the elastic member is in a stretched state; wherein the movable member pulls the air outlet device down through a pull rope, and the elastic member pulls the air outlet device up.

[0019] In the technical solution of the embodiment of the present application, the air outlet device is connected with the air intake device through an air pipe, and the part connecting the air pipe and the air outlet device is a bendable hose. When the air outlet device is raised or lowered, the air pipe can also be bent or straightened accordingly, so that the air outlet device can continue to blow air to the pigs in the feeding station after moving; the transmission assembly also includes an elastic member, which is connected to the feeding station and the air outlet device, and the elastic member is in a stretched state. The elastic force applied by the elastic member to the air outlet device is upward in the vertical direction, and the combined force of the gravity applied to the air outlet device by the pull rope and the gravity received by the air outlet device by the movable member is downward in the vertical direction. When there are no pigs in the feeding station, the air outlet device is at an initial height. At this time, the elastic force applied by the elastic member to the air outlet device and the gravity received by the air outlet device The elastic force of the elastic part is equal to the sum of the gravity received by the movable part, so that the air outlet device can remain stationary in the feeding station. When the movable part is lifted up by the pig, the stretch at one end connected to the movable part becomes loose, and the sum of the gravity loses the gravity of the movable part. At this time, the elastic force is greater than the sum of the gravity, and the air outlet device rises under the pull of the elastic force until the stretch is tightened again. The air outlet device is turned on and remains stationary, and the elastic force of the elastic part is equal to the sum of the gravity. At this time, since the stretched distance of the elastic part is shortened, the elastic force of the elastic part is reduced, and the sum of the gravity is equal to the gravity received by the air outlet device and the gravity received by some movable parts, so that the gravity of the movable parts will not act entirely on the pig's back, reducing the risk of excessive squeezing of the pig's back by the movable parts and causing skin damage to the pig.

[0020] In some embodiments, the air outlet device slides with the slide rail on the inner side of the feeding station, and the air outlet device rises and falls along the slide rail; the control mechanism also includes an electric contact, and both the feeding station and the air outlet device are provided with an electric contact, and the electric contact on the feeding station is connected to a power supply. The air outlet device is raised and lowered so that the electric contact on the air outlet device and the electric contact on the feeding station contact or stagger so that the air outlet device can be powered on or powered off.

[0021] In the technical solution of the embodiment of the present application, the air outlet device slides with the slide rail on the inner side of the feeding station. The feeding station limits the lifting direction of the air outlet device through the slide rail, thereby reducing the risk of the air outlet device being separated from the feeding station and improving the connection stability between the low-energy precision ventilation system for pig houses provided by the present application and the feeding station; the control mechanism also includes an electric contact, and both the feeding station and the air outlet device are provided with an electric contact. The electric contact on the feeding station is connected to a power supply. When the air outlet device is at an initial height where there are no pigs in the feeding station, the electric contact on the air outlet device and the electric contact on the feeding station are staggered, so that the air outlet device is powered off and closed; when the air outlet device rises, the electric contact on the air outlet device and the electric contact on the feeding station come into contact with each other, so that current passes through the two electric contacts into the air outlet device, allowing the air outlet device to turn on. The opening of the air outlet device is controlled by an electric contact piece, which has a simple structure and stable effect. The size of the electric contact piece on the air outlet device is smaller than that of the electric contact piece on the feeding station. Before the electric contact piece on the air outlet device is completely in contact with the electric contact piece on the feeding station, the contact area between the electric contact piece on the air outlet device and the electric contact piece on the feeding station gradually increases. The contact area between the two electric contacts is the current flow area. The larger the contact area between the two electric contacts, the greater the current input to the air outlet device. Before reaching the rated power, the working efficiency of the air outlet device is proportional to the magnitude of the input current. Specifically, the greater the current, the stronger the wind force blown out by the air outlet device. The wind force of the air outlet device is gradually increased from small to large during the rising process, thereby reducing the risk of sudden strong winds causing fright and stress to pigs entering the feeding station.

[0022] In some embodiments, there are multiple air outlet devices and multiple control mechanisms. The multiple air outlet devices correspond one-to-one to the multiple control mechanisms. The multiple air outlet devices are arranged along the extension direction of the trough in the feeding station, and each trough corresponds to the position of at least one air outlet device.

[0023] In the technical solution of the embodiment of the present application, there are also multiple control mechanisms, and the multiple air outlet devices correspond one-to-one to the multiple control mechanisms. The multiple air outlet devices are arranged along the extension direction of the trough in the feeding station. The low-energy precision ventilation system for pig houses provided by the present application can allow only some of the multiple air outlet devices facing the area where pigs are eating to be opened, thereby achieving precise ventilation and reducing the energy consumption required for ventilation.

[0024] In some embodiments, the air outlet device blows air obliquely from the back of the neck to the hind legs of the pigs located in the feeding station.

[0025] In the technical solution of the embodiment of the present application, the air outlet device blows air obliquely toward the pigs in the feeding station, so that the air outlet range of the air outlet device can cover most of the pig's body, thereby improving the cooling effect on the pig's body.

[0026] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A schematic diagram of the external structure of a low-energy precision ventilation system for a feeding station and a piggery provided in some embodiments of the present application;

[0029] Figure 2 A schematic diagram of the overall structure of a low-energy precision ventilation system for a pig house provided in some embodiments of the present application;

[0030] Figure 3 A front view of a low-energy precision ventilation system for a feeding station and a piggery provided in some embodiments of the present application;

[0031] Figure 4 for Figure 3 Sectional view at AA in the middle;

[0032] Figure 5 Side view of a low-energy precision ventilation system for a feeding station and a piggery provided in some embodiments of the present application

[0033] Figure 6 for Figure 5 Cross-sectional view at the middle BB.

[0034] Icons: 1-feeding station; 10-trough; 11-slide rail; 2-air outlet device; 20-trachea; 3-movable part; 30-limiting block; 31-matching part; 32-support part; 320-support surface; 33-guide part; 4-control mechanism; 40-transmission assembly; 400-pull rope; 401-pulley; 402-elastic part; 41-electric contact piece. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0037] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0038] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0040] The term "multiple" as used in this application refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple sheets" refers to more than two sheets (including two sheets).

[0041] According to some embodiments of the present application, optionally, Figure 1 to Figure 5As shown, the present application provides a low-energy precision ventilation system for a pig house, which is used to blow air to the pigs eating in the feeding station 1. The low-energy precision ventilation system for the pig house includes an air outlet device 2, a movable part 3 and a control mechanism 4; the air outlet device 2 is suspended on the inner side of the feeding station 1; the movable part 3 is used to be pushed by the pigs entering the feeding station 1 to determine whether there are pigs in the feeding station 1; the control mechanism 4 is used to control the air outlet device 2 to switch between an open state and a closed state according to whether there are pigs in the feeding station 1; wherein the air outlet device 2 blows air toward the shoulders and necks of the pigs eating at the trough 10 in the feeding station 1.

[0042] The air outlet device 2 can be movably installed in the feeding station 1, and the position of the air outlet device 2 blowing air into the feeding station 1 can be changed by changing the position of the air outlet device 2 to meet the cooling needs of pigs of different sizes.

[0043] Since bacteria are easily bred in pig houses, they need to be cleaned and disinfected frequently. The air outlet device 2 can be detachably installed on the feeding station 1, which makes it easy to remove the air outlet device 2 from the feeding station 1 for cleaning, thereby preventing dirt from adhering to the air outlet of the blowing device and other locations to breed bacteria or viruses, thereby reducing the difficulty of maintaining the air outlet device 2.

[0044] The movable part 3 may be a contact sensor, which obtains information about whether there are pigs in the feeding station 1 by contacting the body of the pig entering the feeding station 1 .

[0045] The distance between the opening of the feeding station 1 and the trough 10 is at least enough for a normal-sized pig to put most of its body into the feeding station 1 to eat.

[0046] When a pig of normal size enters the feeding station 1, the pig's head will first be inserted into the feeding station 1, and then the pig's shoulder and body will enter the feeding station 1. When the pig's shoulder enters the feeding station 1, the movable part 3 will be pushed to open the air outlet device 2. On the one hand, the air outlet device 2 will not be triggered to open and blow air to the feeding station 1 where no pig has entered when the pig is wandering at the opening of the feeding station 1, thereby reducing the risk of energy waste caused by the air outlet device 2; on the other hand, the air blowing device will not blow air on the pig's face when the pig starts to enter the feeding station 1, thereby reducing the risk of the pig being frightened by the sudden wind and leaving the feeding station 1 or even suffering from stress.

[0047] The movable part 3 is used to be pushed by the pigs entering the feeding station 1 to determine whether there are pigs in the feeding station 1; the control mechanism 4 is used to control the air outlet device 2 to switch between the open state and the closed state according to whether there are pigs in the feeding station 1. When there are no pigs in the feeding station 1, the air outlet device 2 is in the closed state. When there are pigs in the feeding station 1, the air outlet device 2 will become the open state under the control of the control mechanism 4, shortening the working time of the air outlet device 2, thereby reducing the energy consumption of the low-energy precision ventilation system for the pig house provided by the present application, saving energy and being environmentally friendly; the body temperature of the pigs rises when eating in the feeding station 1, and the air outlet device 2 discharges air toward the shoulders and necks of the pigs eating at the trough 10 in the feeding station 1, and the wind takes away the heat from the body surface of the pigs in the feeding station 1, so that the body temperature of the pigs is reduced, thereby avoiding the loss of appetite and heat stress of the pigs caused by the increase in temperature, and ensuring the health of the pigs. The drop in external body temperature can also reduce the risk of pigs sweating while eating, thereby reducing the risk of pigs getting sick due to sudden changes in temperature caused by the rapid evaporation of sweat; the pig's shoulder and neck are rich in blood vessels, and when the pig's body temperature rises, the temperature rise in the pig's shoulder and neck is particularly obvious. The air outlet device 2 accurately blows air to the pig's shoulder and neck, and can use a smaller air volume to cool the pig's body surface. On the one hand, the air volume of the air outlet device 2 is proportional to the amount of electricity required to drive the air outlet device 2 to work. When the air volume used by the air outlet device 2 is smaller, the amount of electricity required to drive the air outlet device 2 to work is also smaller, thereby reducing the energy consumption of the air outlet device 2 when it is working. On the other hand, the feeling on the pig's face is more obvious than other parts of the pig. The air outlet device 2 avoids the pig's face and blows air to the pig, which can reduce the risk of the pig being frightened and stressed due to sudden wind blowing on the face.

[0048] According to some embodiments of the present application, optionally, Figure 2 to Figure 5 As shown, the air outlet device 2 can be lifted and lowered at the feeding station 1, the control mechanism 4 includes a transmission assembly 40, the movable part 3 can be lifted and lowered at the feeding station 1, the transmission assembly 40 is arranged between the movable part 3 and the air outlet device 2, and the movable part 3 is closer to the entrance of the feeding station 1 than the air outlet device 2; wherein the movable part 3 is used to be lifted up by the pigs entering the feeding station 1, and the transmission assembly 40 guides the air outlet device 2 to rise synchronously according to the rising size information of the movable part 3 so that the air outlet device 2 is directly facing the shoulder and neck of the pig.

[0049] The air outlet device 2 can be fitted with the inner wall of the feeding station 1, and can be raised and lowered along the inner wall of the feeding station 1 under the guidance of the transmission component 40. The moving direction and deflection of the air outlet device 2 are limited by the inner wall of the feeding station 1, so that the air outlet of the air outlet device 2 can be kept facing the pigs entering the feeding station 1, thereby improving the structural stability of the low-energy precision ventilation system for the pig house provided in the present application, and thus the working effect of the low-energy precision ventilation system for the pig house provided in the present application can be kept stable.

[0050] When the length of the feeding station 1 is enough to allow most of the pig's body to enter, the movable part 3 can be set at the opening of the feeding station 1. When the pig enters the feeding station 1, the movable part 3 will be pushed up to open the air outlet device 2. When the pig is eating in the feeding station 1, the movable part 3 will be continuously pushed up by the pig to keep the movable part 3 in the open state. When the air outlet device 2 is opened, the movable part 3 and the pig's body will block the opening of the feeding station 1 together, reducing the probability of the wind blown by the air outlet device 2 entering the pig's pen through the opening of the feeding station 1, thereby reducing the risk of other pigs in the pen harassing the pigs in the feeding station 1 for reasons such as cooling down.

[0051] When the length of the feeding station 1 is sufficient to allow the entire body of the pig to enter, the movable part 3 can be arranged inside the feeding station 1. When the pig enters the feeding station 1 and moves toward the trough 10, the movable part 3 will be lifted up to open the air outlet device 2. When the pig is eating in the feeding station 1, the movable part 3 will be continuously lifted up by the pig to keep the movable part 3 in the open state. The opening of the feeding station 1 is relatively small or can be closed after the pig enters the feeding station 1, thereby reducing the probability of the wind blown out by the air outlet device 2 entering the pig's pen through the opening of the feeding station 1, thereby reducing the risk of other pigs in the pen harassing the pigs in the feeding station 1 for reasons such as cooling down.

[0052] When the movable part 3 is not lifted up by the pig, the air outlet device 2 is at an initial height. When the movable part 3 is not lifted up, the distance between its bottom and the ground is smaller than the height of a pig of average size, so that the height of the air outlet device 2 can be adjusted to suit the height of most pigs.

[0053] Even pigs raised in the same pig house will have different body shapes. Strong pigs are taller than ordinary pigs. The movable part 3 is lifted up by the pigs entering the feeding station 1 and rises a certain distance according to the height of the pigs. The transmission component 40 guides the air outlet device 2 to rise synchronously according to the rising size information of the movable part 3, so that the height of the air outlet device 2 can be adjusted according to the body height of the pigs entering the feeding station 1, so that pigs of different sizes can rely on the air outlet device 2 to lower their own temperature when entering the feeding station 1 to eat, so that the low-energy precision ventilation system for pig houses provided in the present application can stably and effectively reduce the body temperature of pigs when eating.

[0054] According to some embodiments of the present application, optionally, Figure 4 As shown, the movable member 3 is provided with a limit block 30, and the movable member 3 is slidably matched with the slide groove of the feeding station 1 through the limit block 30, and the movable member 3 is lifted and lowered along the slide groove.

[0055] The number of the limiting blocks 30 may be multiple.

[0056] The number of the slide grooves may be less than the number of the limit blocks 30 , and at least one limit block 30 is disposed in each slide groove.

[0057] The movable part 3 slides in cooperation with the slide groove of the feeding station 1 through the limit block 30. The slide groove limits the lifting direction of the movable part 3 when it is lifted up by the pig, thereby reducing the risk of the movable part 3 detaching from the feeding station 1 due to the movement of the pig, thereby improving the structural stability of the low-energy precision ventilation system for the pig house provided in this application.

[0058] According to some embodiments of the present application, optionally, Figure 2 , Figure 4-5 As shown, the movable member 3 includes a matching portion 31 and a supporting portion 32 . The matching portion 31 contacts and slidably matches with the feeding station 1 , and the supporting portion 32 has a supporting surface 320 for contacting the pigs entering the feeding station 1 .

[0059] The support surface 320 may be a smooth curved surface, so that the friction between the support surface 320 and the pig's back skin is small when the two are in contact, thereby reducing the risk of the pig's back skin being injured by friction with the support surface 320 when the pig enters and exits the feeding station 1.

[0060] The support portion 32 has a support surface 320 for contacting the pig entering the feeding station 1, so that the contact area between the movable part 3 and the pig's back skin is larger. When the pig lifts the movable part 3, the gravity of the movable part 3 can be dispersed to the contact point between the support surface 320 and the pig's back, thereby reducing the risk of excessive concentration of force applied by the movable part to the pig, causing injury to the pig's back skin.

[0061] According to some embodiments of the present application, optionally, Figure 2 , Figure 4-5 As shown, the movable part 3 also includes a guide portion 33, which is arranged on the side of the support portion 32 away from the air outlet device 2, and the guide portion 33 is tilted in the direction away from the pigs entering the feeding station 1. The surface of the guide portion 33 facing the pigs entering the feeding station 1 is an arc surface that smoothly transitions with the support surface 320.

[0062] The guide portion 33 may be made of a flexible material so that the pig's head is not easily injured when a collision occurs between the guide portion 33 .

[0063] The guide portion 33 is arranged on the side of the support portion 32 away from the air outlet device 2. When the pigs in the pen move toward the trough 10 in the feeding station 1, the pigs' heads will first contact the guide portion 33. The guide portion 33 is tilted in the direction away from the pigs entering the feeding station 1. The surface of the guide portion 33 facing the pigs entering the feeding station 1 is an arc surface that smoothly transitions with the support surface 320, so that the pigs' heads first contact the surface of the guide portion 33 facing the pigs entering the feeding station 1, and then contact the support portion 32 through the guide portion 33, thereby gradually lifting the movable part 3.

[0064] According to some embodiments of the present application, optionally, Figure 2 to Figure 6As shown, the transmission assembly 40 includes a pull rope 400 and multiple pulleys 401. The pulley 401 is rotatably arranged on the feeding station 1. The two ends of the pull rope 400 are respectively connected to the movable part 3 and the air outlet device 2. The pull rope 400 is supported by the multiple pulleys 401 to pull the air outlet device 2 up and down.

[0065] The number of the plurality of pulleys 401 may be two, three, four, five, six, seven, eight, nine, ten or even more.

[0066] The plurality of pulleys 401 may all be fixed pulleys 401, or the plurality of pulleys 401 may include a plurality of movable pulleys 401 and at least one fixed pulley 401.

[0067] The two ends of the pull rope 400 are respectively connected to the movable part 3 and the air outlet device 2. The pull rope 400 is supported by multiple pulleys 401 to pull the air outlet device 2 up and down. The pull rope 400 is used to realize the linkage of movement between the movable part 3 and the air outlet device 2. The structure is simple, the transmission effect is intuitive and effective, and the difficulty of use and maintenance is relatively low.

[0068] According to some embodiments of the present application, optionally, Figures 4 to 6 As shown, the air outlet device 2 is connected to the air intake device through the air pipe 20, and the part connecting the air pipe 20 and the air outlet device 2 is a bendable hose. The transmission assembly 40 also includes an elastic member 402, and the elastic member 402 is connected to the feeding station 1 and the air outlet device 2, and the elastic member 402 is in a stretched state; wherein, the movable member 3 pulls the air outlet device 2 down through the pull rope 400, and the elastic member 402 pulls the air outlet device 2 up.

[0069] When there are multiple air outlet devices 2, the multiple air outlet devices 2 can be connected to the non-bendable main pipeline through the bendable air pipe 20, and then the main pipeline is connected to the air intake device.

[0070] The trachea 20 may be a corrugated hose, so that the deformation generated when the trachea 20 is bent or contracted can be absorbed by the external structure of the trachea 20 itself, thereby reducing the risk of damage to the surface of the trachea 20 and extending the service life of the trachea 20.

[0071] The air outlet device 2 is connected to the air intake device through the air pipe 20. The part of the air pipe 20 that is connected to the air outlet device 2 is a bendable hose. When the air outlet device 2 is raised or lowered, the air pipe 20 can also be bent or straightened accordingly, so that the air outlet device can continue to blow air to the pigs in the feeding station 1 after moving; the transmission assembly 40 also includes an elastic member 402, which is connected to the feeding station 1 and the air outlet device 2. The elastic member 402 is in a stretched state. The elastic force applied by the elastic member 402 to the air outlet device 2 is vertically upward, and the combined force of the gravity applied to the air outlet device 2 by the pull rope 400 and the gravity received by the air outlet device 2 by the movable member 3 is vertically downward. When there are no pigs in the feeding station 1, the air outlet device 2 is at an initial height. At this time, the elastic force applied by the elastic member 402 to the air outlet device 2 and the gravity received by the air outlet device 2 The gravity received is equal to the sum of the gravity received by the movable part 3, so that the air outlet device 2 can remain stationary in the feeding station 1. When the movable part 3 is lifted up by the pig, the tension at one end connected to the movable part 3 becomes loose, and the sum of the gravity loses the gravity of the movable part 3. At this time, the elastic force is greater than the sum of the gravity, and the air outlet device 2 rises under the pull of the elastic force until the tension is tightened again. The air outlet device 2 is turned on and remains stationary, and the elastic force of the elastic part 402 is equal to the sum of the gravity. At this time, due to the shortening of the stretched distance of the elastic part 402, the elastic force of the elastic part 402 is reduced, and the sum of the gravity is equal to the gravity received by the air outlet device 2 and the gravity received by part of the movable part 3, so that the gravity of the movable part 3 will not act entirely on the pig's back, reducing the risk of excessive squeezing of the pig's back by the movable part 3 and causing skin damage to the pig.

[0072] According to some embodiments of the present application, optionally, Figure 4 As shown, the air outlet device 2 is slidably matched with the slide rail 11 on the inner side of the feeding station 1, and the air outlet device 2 is lifted and lowered along the slide rail 11; the control mechanism 4 also includes an electric contact 41, and the feeding station 1 and the air outlet device 2 are both provided with an electric contact 41, and the electric contact 41 on the feeding station 1 is connected to the power supply. The air outlet device 2 is lifted and lowered so that the electric contact 41 on the air outlet device 2 and the electric contact 41 on the feeding station 1 are in contact or staggered to enable the air outlet device 2 to be powered on or powered off.

[0073] There may be more than one slide rail 11 , and the air outlet device 2 is provided with a slideway for cooperating with the slide rail 11 of the feeding station 1 .

[0074] The air outlet device 2 is slidably matched with the slide rail 11 on the inner side of the feeding station 1. The feeding station 1 limits the lifting direction of the air outlet device 2 through the slide rail 11, thereby reducing the risk of the air outlet device 2 being separated from the feeding station 1 and improving the connection stability between the low-energy precision ventilation system for the pig house provided by the present application and the feeding station 1; the control mechanism 4 also includes an electric contact 41, and the feeding station 1 and the air outlet device 2 are both provided with an electric contact 41. The electric contact 41 on the feeding station 1 is connected to a power supply. When the air outlet device 2 is located at an initial height where there are no pigs in the feeding station 1, the electric contact 41 on the air outlet device 2 and the electric contact 41 on the feeding station 1 are staggered, so that the air outlet device 2 is powered off and closed; when the air outlet device 2 rises, the electric contact 41 on the air outlet device 2 and the electric contact 41 on the feeding station 1 contact each other, so that the current passes through the two electric contacts 41 into the air outlet device 2, so that the air outlet device 2 is turned on. The opening of the air outlet device 2 is controlled by the electric contact piece 41, which has a simple structure and stable effect. The size of the electric contact piece 41 on the air outlet device 2 is smaller than that of the electric contact piece 41 on the feeding station 1. Before the electric contact piece 41 on the air outlet device 2 is completely in contact with the electric contact piece 41 on the feeding station 1, the contact area between the electric contact piece 41 on the air outlet device 2 and the electric contact piece 41 on the feeding station 1 gradually increases. The contact area between the two electric contacts 41 is the current flow area. The larger the contact area between the two electric contacts 41, the greater the current input to the air outlet device 2. Before reaching the rated power, the working efficiency of the air outlet device 2 is proportional to the magnitude of the input current, which is specifically reflected in that the larger the current, the stronger the wind force blown out by the air outlet device 2, so that the wind force of the air outlet device 2 gradually increases from small to large during the rising process, thereby reducing the risk of sudden strong winds causing fright and stress to pigs entering the feeding station 1.

[0075] According to some embodiments of the present application, optionally, Figure 1 to Figure 3 , Figure 6 As shown, there are multiple air outlet devices 2 and multiple control mechanisms 4. The multiple air outlet devices 2 correspond one-to-one to the multiple control mechanisms 4. The multiple air outlet devices 2 are arranged along the extension direction of the trough 10 in the feeding station 1, and each trough 10 corresponds to the position of at least one air outlet device 2.

[0076] The number of the plurality of air outlet devices 2 may be four, eight, twelve, sixteen, twenty or more.

[0077] There are also multiple control mechanisms 4, and multiple air outlet devices 2 correspond one-to-one to multiple control mechanisms 4. Multiple air outlet devices 2 are arranged along the extension direction of the trough 10 in the feeding station 1. The low-energy precision ventilation system for pig houses provided in the present application can allow only some of the air outlet devices 2 facing the area where pigs are eating to be opened, thereby achieving precise ventilation and reducing the energy consumption required for ventilation.

[0078] According to some embodiments of the present application, optionally, the air outlet device 2 blows air obliquely from the back of the neck to the hind legs of the pigs located in the feeding station 1.

[0079] The air outlet device 2 blows air obliquely toward the pigs in the feeding station 1, so that the air outlet range of the air outlet device 2 can cover most of the pigs' bodies, thereby improving the cooling effect on the pigs' bodies.

[0080] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A low-energy precision ventilation system for pig houses, used to blow air to pigs eating in a feeding station, characterized in that: include: An air outlet device is hung on the inner side of the feeding station; a movable member, adapted to be pushed by a pig entering the feeding station to determine whether there is a pig in the feeding station; A control mechanism, used to control the air outlet device to switch between an open state and a closed state according to whether there are pigs in the feeding station; The air outlet device discharges air toward the shoulders and necks of pigs eating at the trough in the feeding station.

2. A low energy consumption precision ventilation system for pig houses according to claim 1, characterized in that: The air outlet device is liftably disposed at the feeding station, the control mechanism includes a transmission assembly, the movable member is liftably disposed at the feeding station, the transmission assembly is disposed between the movable member and the air outlet device, and the movable member is closer to the entrance of the feeding station than the air outlet device; The movable part is used to be lifted up by the pigs entering the feeding station, and the transmission component guides the air outlet device to rise synchronously according to the rising size information of the movable part so that the air outlet device faces the pig's shoulder and neck.

3. A low energy consumption precision ventilation system for pig houses according to claim 2, characterized in that: The movable part is provided with a limit block, and the movable part is slidably matched with the slide groove of the feeding station through the limit block, and the movable part is lifted and lowered along the slide groove.

4. A low energy consumption precision ventilation system for pig houses according to claim 2, characterized in that: The movable part comprises a matching part and a supporting part, wherein the matching part contacts and slidably matches with the feeding station, and the supporting part has a supporting surface for contacting with a pig entering the feeding station.

5. A low energy consumption precision ventilation system for pig houses according to claim 4, characterized in that: The movable part also includes a guide portion, which is arranged on a side of the support portion away from the air outlet device, and the guide portion is tilted in a direction away from the pigs entering the feeding station. The surface of the guide portion facing the pigs entering the feeding station is a curved surface that smoothly transitions with the support surface.

6. A low energy consumption precision ventilation system for pig houses according to claim 2, characterized in that: The transmission assembly includes a pull rope and a plurality of pulleys. The pulleys are rotatably arranged on the feeding station. The two ends of the pull rope are respectively connected to the movable part and the air outlet device. The pull rope is supported by the plurality of pulleys to pull the air outlet device up and down.

7. A low energy consumption precision ventilation system for pig houses according to claim 6, characterized in that: The air outlet device is connected to the air intake device through an air pipe, and the part of the air pipe connected to the air outlet device is a bendable hose. The transmission assembly also includes an elastic member, which is connected to the feeding station and the air outlet device, and the elastic member is in a stretched state; Wherein, the movable part pulls the air outlet device downward through the pull rope, and the elastic part pulls the air outlet device upward.

8. A low energy consumption precision ventilation system for pig houses according to claim 2, characterized in that: The air outlet device is slidably matched with the slide rail inside the feeding station, and the air outlet device is lifted and lowered along the slide rail; The control mechanism also includes an electric contact, which is provided on the feeding station and the air outlet device. The electric contact on the feeding station is connected to a power source. The air outlet device is raised and lowered so that the electric contact on the air outlet device and the electric contact on the feeding station are in contact or staggered so that the air outlet device is powered on or powered off.

9. A low energy consumption precision ventilation system for pig houses according to claim 2, characterized in that: There are multiple air outlet devices and multiple control mechanisms. The multiple air outlet devices correspond one-to-one to the multiple control mechanisms. The multiple air outlet devices are arranged along the extension direction of the trough in the feeding station, and each trough corresponds to the position of at least one air outlet device.

10. A low energy consumption precision ventilation system for a pig house according to claim 1, characterized in that: The air outlet device blows air obliquely from the rear neck to the rear legs of the pigs located in the feeding station.

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