A piglet pressure prevention device, system and method

Abstract

This application provides a piglet crush prevention device, system, and method, including: setting the piglet crush prevention device on one side of the sow pen; using the piglet crush prevention device to detect the sow's status; when the piglet crush prevention device detects that the sow is standing, it detects again whether there are piglets under the sow; if the piglet crush prevention device detects that there are piglets under the sow, it drives the piglets away from under the sow, thereby preventing the sow from crushing or killing the piglets.

Description

Technical Field

[0001] This application relates to the field of livestock breeding equipment technology, and in particular to a piglet anti-crushing device, system and method. Background Technology

[0002] In pig farming, during the first few days after a sow gives birth, piglets are easily crushed or killed when they cannot run away from under her in time when she stands up and then lies down. Statistics show that the industry average crushing mortality rate is 5%-10%, and can reach as high as 10%-15% in poorly managed farms.

[0003] To reduce or avoid the problem of piglets being crushed to death, this application provides a piglet anti-crushing device, system and method. Summary of the Invention

[0004] This application provides a piglet anti-crushing device, system, and method to solve the problem that piglets are easily crushed or killed by the sow immediately after giving birth.

[0005] In a first aspect, embodiments of this application provide a method for preventing piglets from being crushed, characterized by comprising:

[0006] Install anti-crush devices for piglets on one side of the sow pen;

[0007] Use a piglet anti-crushing device to monitor the condition of the sow;

[0008] When the piglet anti-crushing device detects that the sow is standing, it checks again whether there are piglets under the sow;

[0009] If the piglet anti-crushing device detects that there are piglets under the sow, it will drive the piglets away from under the sow.

[0010] Secondly, this application also provides a piglet anti-crushing system, characterized in that it includes a cloud server, a terminal, and multiple piglet anti-crushing devices;

[0011] Multiple piglet anti-crushing devices are respectively installed next to each sow pen;

[0012] The piglet anti-crushing device uploads the collected environmental information, the number of times the sow stands up, and the data on driving away piglets to the cloud server;

[0013] The terminal is used to view and analyze data downloaded from the server to determine the status of sows and piglets.

[0014] Secondly, embodiments of this application also provide a piglet anti-crushing device, comprising:

[0015] case;

[0016] The control components are disposed within the housing;

[0017] A first detection component is connected to the housing and electrically connected to the control component. The first detection component is used to detect whether the sow is standing.

[0018] A repellent assembly is disposed inside the housing;

[0019] When the first detection component detects that the sow is standing, the control component controls the dispersal component to move away the piglets under the sow.

[0020] In one feasible implementation, the piglet anti-crushing device further includes a second detection component, which is connected to the housing and electrically connected to the control component. The second detection component is used to detect whether there are piglets under the sow.

[0021] The decoy component activates when the first detection component detects that the sow is standing and the second detection component detects that there are piglets below the sow.

[0022] In one feasible implementation, the de-escalation component is configured as a blower de-escalation component or an acoustic de-escalation component.

[0023] In one feasible implementation, the blowing and dispersing assembly includes a fan and an air duct. The air duct is disposed within the housing, with one end of the air duct connected to the air outlet of the housing and the other end of the air duct connected to the air inlet of the housing. The fan is disposed within the air duct and guides air from the air inlet into the air duct and out of the air outlet.

[0024] In one feasible implementation, the air duct includes a first channel and a second channel, the fan is disposed inside the housing, one end of the first channel is connected to the air inlet, the other end of the first channel is connected to the fan, one end of the second channel is connected to the air outlet, and the other end of the second channel is connected to the fan.

[0025] In one feasible implementation, the piglet anti-crushing device further includes a heating component disposed in the air duct, the heating component being used to heat the air.

[0026] In one feasible implementation, the piglet anti-crushing device further includes a support assembly disposed on the housing, and the first detection component is disposed at the end of the support assembly away from the housing.

[0027] In one feasible implementation, the support assembly includes a first rod and a second rod, one end of the first rod is connected to the housing, the other end of the first rod is slidably connected to one end of the second rod, and the first detection component is disposed at the other end of the second rod.

[0028] In one feasible implementation, there are two second detection components, which are spaced apart on the housing along a detection direction perpendicular to the first detection component.

[0029] In one feasible implementation, the first detection component and the second detection component may be configured as photoelectric detection sensors or image acquisition and detection components;

[0030] And / or, the piglet anti-crushing device further includes an audible and visual prompting component, which is electrically connected to the control component;

[0031] When the first detection component detects that the sow is standing, the audio-visual prompting component emits a sound or a prompting light;

[0032] And / or, the piglet anti-crushing device further includes an environmental monitoring component and a wireless communication module. The environmental monitoring component and the wireless communication module are electrically connected to the control component, respectively. The environmental monitoring component is used to monitor the environment of the pigpen, and the wireless communication module is used to transmit the pigpen environment data collected by the environmental monitoring component to a wireless terminal.

[0033] And / or, handles are provided on both sides of the housing.

[0034] First, this application provides a method for preventing piglets from being crushed, comprising: setting a piglet crush prevention device on one side of the sow pen; using the piglet crush prevention device to detect the sow's status; when the piglet crush prevention device detects that the sow is standing, detecting again whether there are piglets under the sow; if the piglet crush prevention device detects that there are piglets under the sow, driving the piglets away from under the sow, thereby preventing the sow from crushing or killing the piglets.

[0035] Second, a piglet crush prevention system includes a cloud server, a terminal, and multiple piglet crush prevention devices; the multiple piglet crush prevention devices are respectively installed next to each sow pen; the piglet crush prevention devices upload the collected environmental information, the number of times the sow stands up, and the data on driving away piglets to the cloud server; the terminal is used to view and analyze the data downloaded from the server to determine the status of the sow and piglets.

[0036] Third, this application also provides a piglet anti-crushing device, including a housing, a control component, a first detection component, and a repelling component. The control component is disposed within the housing; the first detection component is connected to the housing and electrically connected to the control component, and is used to detect whether the sow is standing; the repelling component is disposed inside the housing; when the first detection component detects that the sow is standing, the control component controls the repelling component to move, thereby driving the piglets away from under the sow and preventing the sow from crushing or killing the piglets when she lies down. Attached Figure Description

[0037] The accompanying drawings, which are provided to further illustrate the invention and constitute a part of this invention, are illustrative embodiments of the invention and their descriptions are used to explain this application and do not constitute an undue limitation of the invention.

[0038] In the attached diagram:

[0039] Figure 1 This is a schematic flowchart of a method for preventing piglets from being crushed, provided in an embodiment of this application.

[0040] Figure 2 This is a schematic diagram of a piglet anti-crushing system provided in an embodiment of this application;

[0041] Figure 3 This is a schematic diagram of the first structure of a piglet anti-crushing device provided in an embodiment of this application;

[0042] Figure 4 yes Figure 3 A schematic diagram of the second structure of the anti-crushing device for piglets in the image;

[0043] Figure 5 yes Figure 3 A schematic diagram of the third structure of the anti-crushing device for piglets in the image;

[0044] Figure 6 yes Figure 3 A schematic diagram of the fourth structure of the anti-crushing device for piglets in the diagram;

[0045] Figure 7 yes Figure 3 A schematic diagram of the internal structure of the anti-crushing device for piglets in the image;

[0046] Figure 8 This is a schematic diagram of a piglet anti-crushing device provided in one embodiment of this application.

[0047] Explanation of reference numerals in the attached figures:

[0048] 100 - Housing; 200 - Control component; 300 - First detection component; 400 - Deflection component; 500 - Second detection component; 600 - Support component; 700 - Heating component; 800 - Audible and visual prompt component;

[0049] 110 - Upper housing; 120 - Lower housing; 210 - Switch; 220 - Control board; 230 - Battery; 410 - Fan; 420 - Air duct; 610 - First rod; 620 - Second rod;

[0050] 121-Air inlet; 122-Air outlet; 123-Handle; 421-First channel; 422-Second channel. Detailed Implementation

[0051] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0052] In the description of the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0054] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0055] In pig farming, during the first few days after a sow gives birth, piglets are easily crushed or killed when they lie down. This is due to various reasons, including the piglets' weakness and slow movement, the sow's excessive weight, poor health, lack of experience, or weak maternal instincts. The piglets cannot escape from under the sow in time. Statistics show that the industry average crushing mortality rate is 5%-10%, and in poorly managed farms, it can reach as high as 10%-15%.

[0056] To reduce or avoid the problem of piglets being crushed to death, this application provides a piglet anti-crushing device, system and method. The following will describe in detail the solution provided by the embodiments of this application with reference to the accompanying drawings.

[0057] Figure 1 This is a schematic flowchart of a method for preventing piglets from being crushed, provided in one embodiment of this application.

[0058] Reference Figure 1 As shown in the embodiment of this application, a method for preventing piglets from being crushed is provided, including:

[0059] S100: Install the piglet anti-crushing device on one side of the sow pen.

[0060] Specifically, in each pig farm, each sow that has just given birth is housed individually in a sow pen that restricts the sow's movement, but piglets can squeeze through the bars. In this step, a piglet crush prevention device is placed on one side of the bars, facing the sow.

[0061] S200: Uses a piglet anti-crushing device to detect the condition of sows.

[0062] Adjust the sow status monitoring component of the piglet anti-crushing device to a suitable height, then turn on the switch of the piglet anti-crushing device to activate it and monitor the sow's status. Specifically, the piglet anti-crushing device detects whether the sow is lying down or standing.

[0063] S300: When the piglet anti-crushing device detects that the sow is standing, it will check again whether there are piglets under the sow.

[0064] The piglet anti-crushing device first determines the sow's condition. When it detects that the sow is standing, it also detects whether there are piglets under the sow.

[0065] S400: If the piglet anti-crushing device detects that there are piglets under the sow, it will drive the piglets away from under the sow, thereby preventing the sow from crushing or killing the piglets.

[0066] For example, a piglet anti-crushing device can drive piglets away from under the sow by blowing air or generating sound waves, thereby preventing the sow from crushing or killing the piglets when she lies down again.

[0067] Figure 2 This is a schematic diagram of a piglet anti-crushing system provided in an embodiment of this application.

[0068] Reference Figure 2 As shown, in a second aspect, embodiments of this application also provide a piglet anti-crushing system, including a cloud server, a terminal, and multiple piglet anti-crushing devices; the multiple piglet anti-crushing devices are respectively installed next to each sow pen; the piglet anti-crushing devices upload the collected environmental information, the number of times the sow stands up, and the data on driving away piglets to the cloud server; the terminal is used to view and analyze the data downloaded from the server to determine the status of the sow and piglets.

[0069] For example, this piglet anti-crushing device can monitor the frequency of sows getting up and lying down in real time and upload the data to a cloud server for remote monitoring and management, providing early warnings of health problems. In addition, the device can monitor environmental parameters such as pen temperature and humidity and upload them to the cloud server in real time. Staff can monitor these parameters via terminals (such as mobile phones, tablets, or computers) to optimize the breeding environment. In other examples, the terminal can incorporate AI algorithms for analysis, analyzing the sow's behavior and health based on the environmental and sow data collected by the device to achieve more accurate health warnings.

[0070] Figure 3 This is a schematic diagram of the first structure of a piglet anti-crushing device provided in an embodiment of this application; Figure 4 yes Figure 3 A schematic diagram of the second structure of the anti-crushing device for piglets in the image; Figure 5 yes Figure 3 A schematic diagram of the third structure of the anti-crushing device for piglets in the image; Figure 6 yes Figure 3 The fourth structural diagram of the anti-crushing device for piglets.

[0071] Reference Figures 3 to 6 As shown in the illustration, this application also provides a piglet anti-crushing device, including a housing 100, a control component 200, a first detection component 300, and a repelling component 400. The control component 200 is disposed within the housing 100; the first detection component 300 is connected to the housing 100 and electrically connected to the control component 200, and is used to detect whether the sow is standing; the repelling component 400 is disposed inside the housing 100; when the first detection component 300 detects that the sow is standing, the control component 200 controls the repelling component 400 to move, thereby repelling the piglets from under the sow and preventing the sow from crushing or killing the piglets when she lies down.

[0072] For example, the first detection component 300 can be an image acquisition component or a photoelectric detection sensor. When the first detection component 300 is configured as a photoelectric detection sensor, it is positioned at a certain height via the support component 600. This height is higher than the maximum height of the sow when she lies down, but lower than the maximum height of the sow when she stands up. It is understood that the first detection component 300 will not be triggered when the sow lies down, but will be triggered when she stands up. At this time, the deflection component 400 will also activate to drive away the piglets located below the sow. In other words, when the first detection component 300 is triggered, it indicates that the sow has stood up. At this time, the control component 200 controls the deflection component 400 to activate, driving away the piglets below the sow, thereby preventing the sow from injuring or killing the piglets when she lies down.

[0073] When the first detection component 300 is configured as an image acquisition component, it can acquire images of the sow and analyze her state. When the first detection component 300 determines that the sow is standing, the control component 200 controls the dispersing component 400 to move away the piglets below the sow. It should be noted that the method of acquiring and analyzing images to determine the sow's state is prior art, and this application does not improve this part of the solution, so it will not be described in detail here.

[0074] For example, the repelling component 400 can be a blowing repelling component or a sound wave repelling component. The blowing repelling component generates an airflow of a certain intensity directed below the sow to drive the piglets away from below. The sound wave repelling component emits sound waves of a certain frequency directed downwards towards the sow to drive the piglets away from below. It should be noted that the airflow of a certain intensity and the sound waves of a certain frequency will only cause discomfort to the piglets and prompt them to leave; they will not cause harm to the piglets.

[0075] For example, the control component 200 includes a control board 220, a switch 210, and a battery 230. The switch 210 is mounted on the housing 100 and connected to the control board 220 via a wire. The switch 210 controls the power supply to and from the entire circuit. The first detection component 300 is electrically connected to the control board 220 via a wire, and the control board 220 receives trigger signals from the first detection component 300. The de-energizing component 400 is also connected to the control board 220 via a wire, and the control board 220 controls the operation of the de-energizing component 400. The battery 230 supplies power to the various electrical components. Acquiring sensor trigger signals via the control board 220 and using the battery 230 to power the electrical components is a conventional technique in the art. Those skilled in the art can design according to their needs; therefore, the specific wiring and control methods will not be detailed here.

[0076] For example, the housing 100 includes an upper housing 110 and a lower housing 120. The upper housing 110 is detachably mounted on the lower housing 120, and the upper housing 110 and the lower housing 120 enclose an internal space. The control assembly 200 and the deflection assembly 400 are both disposed within this internal space. An air inlet 121 and an air outlet 122 are provided on the side wall of the lower housing 120, and the air inlet 121 and the air outlet 122 are positioned opposite each other. Additionally, two opposing handles 123 are provided on the side wall of the lower housing 120. The two handles 123 are used to facilitate the movement of the entire housing 100. To prevent the housing 100 from injuring the piglets, the entire housing 100 is rounded at the corners.

[0077] In some examples, the support assembly 600 is a support rod with a fixed height; in other examples, it is a support rod with a variable height. It is understood that a variable-height support rod facilitates adjustment of the height of the first detection component 300 to accommodate sows of different heights. Exemplarily, the support assembly 600 includes a first rod 610 and a second rod 620. One end of the first rod 610 is connected to the housing 100, and the other end of the first rod 610 is fitted together with and slidably connected to one end of the second rod 620. The first detection component 300 is disposed at the other end of the second rod 620. Because the first rod 610 and the second rod 620 are fitted together and slidable, it is convenient to adjust the overall length of the support assembly 600, thereby facilitating the adjustment of the height of the first detection component 300.

[0078] Reference Figures 3 to 6 As shown, in some examples, the piglet anti-crushing device further includes a second detection component 500, which is mounted on the housing 100 via a mounting base and is electrically connected to the control component 200. Specifically, the second detection component 500 is positioned below the lowest point of the sow's body when she stands up, and is electrically connected to the control board 220 of the control component 200. The second detection component 500 is used to detect whether there are piglets under the sow. When the first detection component 300 is triggered, it indicates that the sow has stood up and is in a standing position. If the second detection component 500 is also triggered at this time, it indicates that there are piglets under the sow. The control component 200 then controls the repulsion component 400 to move the piglets until the second detection component is no longer triggered. If the first detection component 300 is triggered, it indicates that the sow has stood up and is in a standing position. If the second detection component 500 is not triggered at this time, it indicates that there are no piglets under the sow, and the control component 200 will not control the repulsion component 400 to move.

[0079] In these examples, by setting a second detection component 500 to detect whether the piglet is under the sow, the situation where the sow stands up and triggers the first detection component 300 is avoided, but the piglet is not under the sow and the repelling component 400 continues to operate. This improves the battery life of the piglet anti-pressure device 230 and also enhances the overall intelligence of the device.

[0080] In some examples, after the first detection component 300 is triggered by the sow, the deflection component 400 operates for a certain period of time, such as 3 minutes. Subsequently, the second detection component 500 detects the presence of piglets below the sow. If the second detection component 500 detects piglets below the sow at this time (i.e., the second detection component 500 is triggered), the control component 200 controls the deflection component 400 to continue operating until the second detection component 500 is no longer triggered.

[0081] In some examples, to improve the accuracy of piglet position detection, the piglet anti-crushing device is equipped with two second detection components 500, which are spaced apart on the housing 100 along a detection direction perpendicular to the first detection component 300. The control component 200 only controls the deflection component 400 to operate when both second detection components 500 are triggered simultaneously. It is understandable that when only one second detection component 500 is provided, even if there are no piglets below the sow after she stands up, her legs may block and trigger the second detection component 500, leading to false activation. Since the length of a piglet is much greater than the width of its legs, the spacing between the two second detection components 500 can be set according to actual needs and is not specifically limited here.

[0082] It should be noted that in these examples, the first detection component 300 and the second detection component 500 can be configured as a photoelectric detection switch 210.

[0083] In addition, the control component 200 can also record the number of times the postpartum sow lies down and stands up based on the number of times the first detection component 300 is triggered, in order to analyze the sow's behavior, thereby judging the sow's health status and detecting abnormalities in a timely manner.

[0084] Figure 7 yes Figure 3 A schematic diagram of the internal structure of the anti-crushing device for piglets.

[0085] Reference Figure 7As shown, in some examples, the repelling component 400 is configured as a blower repelling component 400, which includes a fan 410 and an air duct 420. The air duct 420 is disposed within the housing 100, with one end connected to the air outlet 122 of the housing 100 and the other end connected to the air inlet 121 of the housing 100. The fan 410 is disposed within the air duct 420, and when the fan 410 rotates, it guides air from the air inlet 121 into the air duct 420 and exits from the air outlet 122. The airflow generated by the rotating fan 410 blows downwards towards the sow, causing discomfort to the piglets and causing them to leave the area, thus preventing the sow from injuring or damaging the piglets when she lies down.

[0086] Specifically, such as Figure 7 As shown, the air duct 420 includes a first channel 421 and a second channel 422. The fan 410 is installed inside the housing 100 by a fixing clip. One end of the first channel 421 is connected to the air inlet 121, and the other end of the first channel 421 is connected to the fan 410. One end of the second channel 422 is connected to the air outlet 122, and the other end of the second channel 422 is connected to the fan 410.

[0087] In order to increase the temperature of the airflow and prevent piglets from getting sick from the cold, the piglet anti-crushing device also includes a heating element 700, which is disposed in the air duct 420 and is heated when the airflow passes through the heating element 700.

[0088] In other examples, the piglet anti-crushing device also includes an audible and visual cue component 800, which is located at the top of the support assembly 600 and electrically connected to the control assembly 200. When the first detection component 300 detects that the sow is standing, the audible and visual cue component 800 emits a sound or a light. Specifically, the audible and visual cue component 800 is electrically connected to the control board 220 in the control assembly 200 via a wire and is located at the end of the second rod 620, facing upwards, to facilitate observation of the cue light by staff.

[0089] In some examples, the piglet anti-crushing device also includes an environmental monitoring component and a wireless communication module, which are electrically connected to the control component 200 via wires. Exemplarily, the environmental monitoring component includes a temperature sensor, a humidity sensor, and other environmental indicator sensors for monitoring environmental data in the pigpen. The controller transmits the environmental data collected by the environmental monitoring component to a wireless terminal via the wireless communication module. Exemplarily, the wireless terminal can be a mobile phone, tablet, or computer.

[0090] Figure 8 This is a schematic diagram of a piglet anti-crushing device provided in one embodiment of this application. Figure 8As shown in the schematic diagram, the piglet crush prevention device has a simple structure, is easy to operate, and runs stably, effectively reducing the piglet crushing mortality rate. According to experimental statistics, the crushing mortality rate in a large-scale farm was 8% before use, and decreased to 2% after use.

[0091] After the sow gives birth, place the piglet anti-crushing device on one side of the sow pen. Adjust the first detection component 300 to a suitable height according to the sow's height, and then turn on the switch 210 to activate the piglet anti-crushing device.

[0092] It is readily understood that, based on the several embodiments provided in this application, those skilled in the art can combine, split, or reorganize the embodiments of this application to obtain other embodiments, none of which exceed the protection scope of this application.

[0093] The above detailed embodiments further illustrate the purpose, technical solution, and beneficial effects of the embodiments of this application. It should be understood that the above are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solutions of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. A method for preventing piglets from being crushed, characterized in that, include: Install anti-crush devices for piglets on one side of the sow pen; Use a piglet anti-crushing device to monitor the condition of the sow; When the piglet anti-crushing device detects that the sow is standing, it checks again whether there are piglets under the sow; If the piglet anti-crushing device detects that there are piglets under the sow, it will drive the piglets away from under the sow.

2. A piglet anti-crushing system, characterized in that, Includes cloud servers, terminals, and multiple anti-crush devices for piglets; Multiple piglet anti-crushing devices are respectively installed next to each sow pen; The piglet anti-crushing device uploads the collected environmental information, the number of times the sow stands up, and the data on driving away piglets to the cloud server; The terminal is used to view and analyze data downloaded from the server to determine the status of sows and piglets.

3. A device for preventing piglets from being crushed, characterized in that, include: Casing (100); A control component (200) is disposed within the housing (100); A first detection component (300) is connected to the housing (100) and electrically connected to the control component (200). The first detection component (300) is used to detect whether the sow is standing. A deflector assembly (400) is disposed inside the housing (100); When the first detection component (300) detects that the sow is standing, the control component (200) controls the dispersal component (400) to move to disperse the piglets under the sow.

4. The anti-crushing device for piglets according to claim 3, characterized in that, The piglet anti-crushing device further includes a second detection component (500), which is connected to the housing (100) and electrically connected to the control component (200). The second detection component (500) is used to detect whether there are piglets under the sow. When the first detection component (300) detects that the sow is standing and the second detection component (500) detects that there are piglets under the sow, the decoy component (400) is activated.

5. The anti-crushing device for piglets according to claim 3, characterized in that, The deflector assembly (400) is configured as a blower deflector assembly (400); the blower deflector assembly (400) includes a fan (410) and an air duct (420), the air duct (420) being disposed within the housing (100), one end of the air duct (420) being connected to the air outlet (122) of the housing (100), and the other end of the air duct (420) being connected to the air inlet (121) of the housing (100), the fan (410) being disposed within the air duct (420), and the fan (410) guiding airflow into the housing (121). The air duct (420) exits from the air outlet (122); the air duct (420) includes a first channel (421) and a second channel (422); the fan (410) is disposed inside the housing (100); one end of the first channel (421) is connected to the air inlet (121), and the other end of the first channel (421) is connected to the fan (410); one end of the second channel (422) is connected to the air outlet (122), and the other end of the second channel (422) is connected to the fan (410).

6. The anti-crushing device for piglets according to claim 5, characterized in that, The piglet anti-crushing device also includes a heating component (700), which is disposed in the air duct (420) and is used to heat the air.

7. The anti-crushing device for piglets according to claim 3, characterized in that, The piglet anti-crushing device also includes a support component (600), which is disposed on the housing (100), and the first detection component (300) is disposed at the end of the support component (600) away from the housing (100).

8. The anti-crushing device for piglets according to claim 7, characterized in that, The support assembly (600) includes a first rod (610) and a second rod (620). One end of the first rod (610) is connected to the housing (100), and the other end of the first rod (610) is slidably connected to one end of the second rod (620). The first detection component (300) is disposed at the other end of the second rod (620).

9. The anti-crushing device for piglets according to claim 4, characterized in that, The second detection component (500) has two parts, and the two second detection components (500) are arranged at intervals on the housing (100) along the detection direction perpendicular to the first detection component (300).

10. The anti-crushing device for piglets according to claim 4, characterized in that, The first detection component (300) and the second detection component (500) can be configured as photoelectric detection sensors or image acquisition detection components; And / or, the piglet anti-crushing device further includes an audible and visual prompting component (800), which is electrically connected to the control component (200); When the first detection component (300) detects that the sow is standing, the audible and visual prompting component (800) emits a sound or a prompting light; And / or, the piglet anti-crushing device further includes an environmental monitoring component and a wireless communication module, wherein the environmental monitoring component and the wireless communication module are electrically connected to the control component (200) respectively, the environmental monitoring component is used to monitor the environment of the pen, and the wireless communication module is used to transmit the pen environment data collected by the environmental monitoring component to a wireless terminal; And / or, handles (123) are provided on both sides of the housing (100).

Images