Sow welfare delivery and feeding fence

Abstract

The invention discloses a feeding fence for sow welfare delivery, and belongs to the technical field of livestock breeding, the feeding fence comprises a fence frame and a rear stop lever arranged in the fence frame, the bottom surface of the fence frame is fixedly connected with a bottom plate, and the middle part of the upper surface of the bottom plate is provided with a group of mutually communicated piston grooves. According to the device, through deformation of a rubber layer and an air bag, an escape space is provided for piglets, the proportion that sows press the piglets deadly is reduced, in the process of pressing the piglets, the deformation of the air bag enables air in the air bag to flow into a piston groove, the increase of the air pressure in the piston groove enables a first piston rod to drive an insertion needle to move upwards, and thus the piglets are prevented from being injured. According to the device, a certain stabbing pain prompt is given to the body of the sow, and under the condition that the influence of piglets is avoided, the laying down of the sow is buffered, that is, when the sow lies down and the internal air pressure of the air bag and the piston groove is the same, the stabbing pain prompt force of the inserting needle on the body surface of the sow is minimum, and under the conditioned reflex for a long time, the sow lies down more slowly; and the proportion of the pressed piglets is further reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of livestock breeding, and particularly relates to a welfare delivery and nursing pen for sows. Background Art

[0002] Pig farming, as an important part of the global livestock industry, has multi-dimensional economic, social, ecological and cultural values. Pork is the most consumed meat globally and an important source of protein. Sows are the source of pig production, and their reproductive performance directly affects the output of pig farms.

[0003] In order to prevent sows from accidentally crushing piglets during nursing and reduce the mortality rate of piglets, a welfare delivery and nursing pen for sows is often used. It guides sows to lie down slowly through adjustable anti-crushing rods, inclined floors or partition layouts, reducing the risk of crushing piglets to death. However, due to the limited movement of sows in the nursing pen and the influence of the external environment, there will still be a phenomenon of accidentally crushing piglets when sows lie down, and it is difficult for piglets to escape from the device with insufficient buffer in this state, making it difficult to further alleviate the crushing ratio of piglets in the nursing pen. Summary of the Invention

[0004] The purpose of the present invention is to propose a welfare delivery and nursing pen for sows to solve the problem that it is difficult for crushed piglets in the existing nursing pen to escape from the device with insufficient buffer, making it difficult to further alleviate the crushing ratio of piglets.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A welfare delivery and nursing pen for sows includes a pen frame and a rear stop bar arranged inside the pen frame. The bottom surface of the pen frame is fixedly connected with a bottom plate. A group of mutually connected piston grooves are opened in the middle of the upper surface of the bottom plate. The upper ends of the first piston rods slidably connected to each piston groove are fixedly connected with pins, and the inner bottom walls of each piston groove are fixedly connected with tension springs. Two rubber layers are inlaid on the outer surface of the pen frame. Two grooves are opened on the bottom plate below the rubber layers. The inner walls of the two grooves are fixedly connected with air bags communicated with the piston grooves. The inner walls of the two air bags are fixedly connected with a group of telescopic springs. The rear stop bar is clamped with two first sliding rings slidably connected to the outer surface of the pen frame. A return spring is arranged on the inner wall of the through groove opened on the outer surface of the pen frame. The inner wall of the piston cylinder inlaid on the right side wall of the through groove is slidably connected with a second piston rod. The piston cylinder is communicated with a liquid bottle and a spray head arranged on the outer surface of the pen frame.

[0007] As a further description of the above technical solution:

[0008] The first slip ring is slidably connected to the inner wall of the through groove. The left end of the return spring is fixedly connected to the outer surface of the first slip ring, and the right end of the return spring is fixedly connected to a retaining ring that is slidably connected to the outer surface of the railing. The left end of the second piston rod extends into the interior of the through groove.

[0009] As a further description of the above technical solution:

[0010] A pair of threads are provided on the right side of the outer surface of the railing. Nuts are threadedly connected to the outer surfaces of both of the two threads. The nuts are rotatably connected to the outer surface of the retaining ring through straight rods.

[0011] As a further description of the above technical solution:

[0012] The left end of the straight rod is rotatably connected to the outer surface of the retaining ring, and the right end of the straight rod is fixedly connected to the outer surface of the nut. The second piston rod penetrates through the retaining ring and the return spring and is fixedly connected to the outer surface of the first slip ring.

[0013] As a further description of the above technical solution:

[0014] The piston cylinder is communicated with the upper part of the inner bottom wall of a liquid bottle arranged on the outer surface of the railing through an L-shaped pipe. A first one-way valve is arranged at the fixed communication position of the L-shaped pipe and the piston cylinder. A second one-way valve is fixedly communicated at the communication position of the spray head and the piston cylinder.

[0015] As a further description of the above technical solution:

[0016] The liquid outlet end of the first one-way valve and the liquid inlet end of the second one-way valve are both communicated with the interior of the piston cylinder. The liquid inlet end of the first one-way valve is communicated with the interior of the liquid bottle. The liquid outlet end of the second one-way valve is communicated with the spray head. The spray head is located on the left side of the upper surface of the bottom plate.

[0017] As a further description of the above technical solution:

[0018] An observation window is arranged on the outer surface of the liquid bottle. A bottle cap is hinged on the upper surface of the liquid bottle. The liquid bottle is fixedly connected to the outer surface of the railing. The reinforcing ribs arranged on the bottom surface of the liquid bottle are fixedly connected to the outer surface of the railing.

[0019] As a further description of the above technical solution:

[0020] A second slip ring is slidably connected to the lower part of the outer surface of the railing. The outer surface of the rear stop rod is clamped with the inner wall of the second slip ring. The second slip ring is located directly below the first slip ring.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0022] In the present invention, through the deformation of the rubber layer and the airbag, an escape space is provided for piglets, reducing the proportion of piglets crushed to death by sows. Moreover, during the process of the sow pressing on the piglet, the deformation of the airbag causes the air inside it to flow into the piston groove. The increase in air pressure inside the piston groove causes the first piston rod to drive the insertion needle to move upward, giving a certain stinging reminder to the sow's body. Without the influence of piglets, such a setting also provides buffering for the sow when lying down. That is, when the air pressure inside the airbag and the piston groove is the same during the sow's lying down, the stinging reminder force of the insertion needle on the sow's body surface is the smallest. Under the long-term conditioned reflex, the sow lies down more slowly, thereby reducing the proportion of piglets crushed to death. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 FIG. is a schematic right-side sectional view of a sow welfare delivery and nursing pen proposed by the present invention;

[0024] Figure 2 FIG. is a schematic front view of a sow welfare delivery and nursing pen proposed by the present invention;

[0025] Figure 3 FIG. is a schematic top view of a sow welfare delivery and nursing pen proposed by the present invention;

[0026] Figure 4 FIG. is a schematic right-side partial sectional view of a sow welfare delivery and nursing pen proposed by the present invention;

[0027] Figure 5 FIG. is a schematic right-side view of a retaining ring of a sow welfare delivery and nursing pen proposed by the present invention;

[0028] Figure 6 A sow welfare delivery and nursing pen proposed by the present invention Figure 1 Schematic enlarged view of the structure at A in;

[0029] Figure 7 A sow welfare delivery and nursing pen proposed by the present invention Figure 4 Schematic enlarged view of the structure at B in. Legend: 1, pen frame; 2, rear retaining bar; 3, bottom plate; 4, piston groove; 5, first piston rod; 6, insertion needle; 7, tension spring; 8, groove; 9, airbag; 10, rubber layer; 11, telescopic spring; 12, first sliding ring; 13, through groove; 14, return spring; 15, piston cylinder; 16, second piston rod; 17, liquid bottle; 18, spray head; 19, retaining ring; 20, L-shaped pipe; 21, first one-way valve; 22, second one-way valve; 23, second sliding ring; 24, thread; 25, nut; 26, straight rod; 27, observation window; 28, bottle cap; 29, reinforcing rib. DETAILED DESCRIPTION OF THE INVENTION

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figures 1-7 , the present invention provides a technical solution: a welfare delivery and nursing pen for sows, including a pen frame 1 and a rear retaining rod 2 arranged inside the pen frame 1. The bottom surface of the pen frame 1 is fixedly connected with a bottom plate 3. A group of mutually communicating piston grooves 4 are opened in the middle of the upper surface of the bottom plate 3. The upper ends of the first piston rods 5 slidably connected to each piston groove 4 are fixedly connected with insertion pins 6. And the inner bottom walls of each piston groove 4 are fixedly connected with tension springs 7. The upper ends of the insertion pins 6 are on the same plane as the upper surface of the pen frame 1. Two rubber layers 10 are inlaid on the outer surface of the pen frame 1. The rubber layers 10 are on the same plane as the upper surface of the pen frame 1. Two grooves 8 are opened in the bottom plate 3 below the rubber layers 10. The inner walls of the two grooves 8 are fixedly connected with air bags 9 communicated with the piston grooves 4. The air bag 9 is a sealed inflatable device made of elastic rubber material, which realizes functions such as support, buffering, sealing or isolation through gas pressure. Its design is flexible and has strong deformation resistance. It is widely used in industries such as industry, transportation, medical treatment, and construction. A group of telescopic springs 11 are fixedly connected to the inner walls of the two air bags 9. The telescopic spring 11 is a kind of mechanical element that realizes length change through elastic deformation. Its core function is to store energy, buffer impact, control movement or provide a restoring force. That is, both the upper and lower ends of the telescopic spring 11 are fixedly connected to the inner wall of the air bag 9, Figure 1 and Figure 6 the tension spring 7 and the telescopic spring 11 are both in a natural state. The setting of the telescopic spring 11 provides a certain supporting force for the rubber layer 10 and plays a resetting role for the air bag 9. The tension spring 7 plays a resetting role for the first piston rod 5. The rear retaining rod 2 is clamped with two first sliding rings 12 slidably connected to the outer surface of the pen frame 1. A second sliding ring 23 is slidably connected to the lower part of the outer surface of the pen frame 1. The outer surface of the rear retaining rod 2 is clamped with the inner wall of the second sliding ring 23. The second sliding ring 23 is located directly below the first sliding ring 12. The setting of the second sliding ring 23 makes the outer surface structure of the rear retaining rod 2 more stable. A reset spring 14 is arranged on the inner wall of the through groove 13 opened on the outer surface of the pen frame 1, Figure 4 the reset spring 14 in

[0032] When the sow lies on the upper surface of the railing 1, its center of gravity is located in the middle of the upper surface of the railing 1. Piglets can climb to the rubber layer 10 on the upper surface of the railing 1 to suck milk. With the setting of the telescopic spring 11, the rubber layer 10 can support the piglets to feed. If the sow lies on its side and presses on the piglets, it will cause the rubber layer 10 and the airbag 9 to deform, providing an escape space for the piglets and reducing the proportion of piglets being crushed to death by the sow. Moreover, during the process of pressing on the piglets, the deformation of the airbag 9 causes the air inside it to flow into the inside of the piston groove 4. The increase in the air pressure inside the piston groove 4 causes the first piston rod 5 to drive the insertion needle 6 to move upward, giving a certain stinging reminder to the sow's body. Without the influence of piglets, such a setting also makes the sow's lying down have a buffer. That is, when the air pressures inside the airbag 9 and the piston groove 4 are the same when the sow lies down, the stinging reminder force of the insertion needle 6 on the sow's body surface is the smallest. Under the long-term conditioned reflex, the sow lies down more slowly, further reducing the proportion of piglets being crushed to death.

[0033] The left end of the return spring 14 is fixedly connected to the outer surface of the first sliding ring 12, and the right end of the return spring 14 is fixedly connected to the abutting ring 19 which is slidably connected to the outer surface of the railing 1. A pair of threads 24 are provided on the right side of the outer surface of the railing 1. Nuts 25 are threadedly connected to the outer surfaces of both threads 24. The nuts 25 are rotatably connected to the outer surface of the abutting ring 19 through straight rods 26. By rotating the nuts 25, the straight rods 26 and the abutting ring 19 can be driven to move left and right on the outer surface of the railing 1, adjusting the initial elastic force of the return spring 14, and further adjusting the force required to drive the rear stop rod 2 to move to the right. The left end of the straight rod 26 is rotatably connected to the outer surface of the abutting ring 19, and the right end of the straight rod 26 is fixedly connected to the outer surface of the nut 25. The first sliding ring 12 is slidably connected to the inner wall of the through groove 13. A second piston rod 16 is slidably connected to the inner wall of the piston cylinder 15 embedded in the right side wall of the through groove 13. The left end of the second piston rod 16 extends into the inside of the through groove 13. The second piston rod 16 passes through the abutting ring 19 and the return spring 14 and is fixedly connected to the outer surface of the first sliding ring 12, so that the movement of the rear stop rod 2 can drive the first sliding ring 12 and the second piston rod 16 to move. The second piston rod 16 does not contact the piston cylinder 15, the abutting ring 19 and the return spring 14.

[0034] The piston cylinder 15 is connected to the liquid bottle 17 and the spray head 18 provided on the outer surface of the hurdle 1. The spray head 18 is a device that atomizes or directs the spraying of liquid through the action of pressure, centrifugal force or gas. Its performance directly affects the spraying efficiency, uniformity and energy consumption. Here, it is atomized by pressure. The high-pressure liquid is accelerated through a narrow hole, and the shear force overcomes the surface tension to form droplets. As an important medium for chemical communication between animals, pheromone has various regulatory effects on the physiology and behavior of sows, especially in the pig industry. It has practical application value. By regulating the reproductive endocrine axis of sows, it significantly improves their estrus rate and reproductive performance, and at the same time has a positive impact on stress management and maternal behavior. In the context of intensive farming, pheromone technology has become an important tool for optimizing the production efficiency of sows and has broad application prospects. The vomeronasal organ in the nasal cavity of sows receives pheromone molecules, transmits signals to the hypothalamic-pituitary axis, regulates hormone secretion, and directly acts on the emotional center. By precisely regulating the neuroendocrine network of sows, pheromone provides a non-invasive tool for emotional management. Combined with environmental, nutritional and behavioral management, it can significantly improve the welfare and production performance of sows.

[0035] An observation window 27 is provided on the outer surface of the liquid bottle 17, and a bottle cap 28 is hinged on the upper surface of the liquid bottle 17. The observation window 28 is a transparent or semi-transparent window device for real-time monitoring of the internal working conditions of a closed container or pipeline. Its design needs to take into account sealing performance, pressure resistance and corrosion resistance, and is widely used in the fields of chemical industry, energy, pharmaceutical, food processing, etc. The observation window 27 facilitates observing the remaining amount of the pheromone solution inside the liquid bottle 17. The liquid bottle 17 is fixedly connected to the outer surface of the hurdle 1, and the reinforcing rib 29 provided on the bottom surface of the liquid bottle 17 is fixedly connected to the outer surface of the hurdle 1. The reinforcing rib 29 is a key element in engineering design for enhancing the structural strength, rigidity and stability. By optimizing the material distribution to resist deformation, vibration or external loads, its design needs to comprehensively consider material properties, stress patterns and manufacturing processes, and is widely used in the fields of machinery, architecture, automobiles, aerospace and plastic products, etc. The setting of the reinforcing rib 29 makes the bottom surface structure of the liquid bottle 17 more stable. The piston cylinder 15 is connected to the upper part of the inner bottom wall of the liquid bottle 17 provided on the outer surface of the hurdle 1 through an L-shaped pipe 20. A first one-way valve 21 is provided at the fixed connection between the L-shaped pipe 20 and the piston cylinder 15. A second one-way valve 22 is fixedly connected at the connection between the spray head 18 and the piston cylinder 15. The one-way valve, also known as a check valve or non-return valve, is an automatic valve that allows fluid to flow in one direction and prevents reverse flow. Its core function is to ensure that the fluid can only flow in one direction and is widely used in industrial equipment, pipeline systems, hydraulic systems, household equipment and other fields.

[0036] The liquid outlet end of the first one-way valve 21 and the liquid inlet end of the second one-way valve 22 are both connected to the inside of the piston cylinder 15. The liquid inlet end of the first one-way valve 21 is connected to the inside of the liquid bottle 17, and the liquid outlet end of the second one-way valve 22 is connected to the spray head 18. The spray head 18 is located on the left side of the upper surface of the bottom plate 3, ensuring the flow direction of the pheromone solution inside the piston cylinder 15. When the sow retreats under the influence of the external environment, the rear stop rod 2 drives the first sliding ring 12 and the second sliding ring 23 to move to the right. The second piston rod 16 moves to the right inside the piston cylinder 15. The reset spring 14 can make the second piston rod 16 reset without external force, that is, the pheromone solution inside the liquid bottle 17 is sprayed to the outside through the L-shaped pipe 20, the first one-way valve 21, the piston cylinder 15, the second one-way valve 22 and the spray head 18, playing a role in soothing the emotions of the sows inside the fence 1.

[0037] Working principle: During use, an appropriate amount of pheromone solution is added to the liquid bottle 17. When the sow lies on the upper surface of the fence 1, its main center is located in the middle of the upper surface of the fence 1. The piglets can climb to the rubber layer 10 on the upper surface of the fence 1 to suck milk. With the setting of the telescopic spring 11, the rubber layer 10 can support the piglets to eat. If the sow lies on its side and presses the piglets, the rubber layer 10 and the airbag 9 will deform, providing an escape space for the piglets and reducing the proportion of piglets crushed to death by the sow. And during the process of pressing the piglets, the deformation of the airbag 9 causes the air inside it to flow into the inside of the piston groove 4. The increase in the air pressure inside the piston groove 4 causes the first piston rod 5 to drive the needle 6 to move upward, giving a certain stinging reminder to the body of the sow. Without the influence of piglets, such a setting also makes the lying down of the sow buffered. That is, when the air pressures inside the airbag 9 and the piston groove 4 are the same when the sow lies down, the stinging reminder force of the needle 6 on the sow's body surface is the smallest. Under the long-term conditioned reflex, the lying down of the sow becomes slower, thereby reducing the proportion of piglets crushed to death.

[0038] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A sow welfare farrowing and nursing pen, comprising a pen frame (1) and a rear retaining bar (2) arranged inside the pen frame (1), characterized in that, The bottom surface of the hurdle (1) is fixedly connected with a bottom plate (3). In the middle of the upper surface of the bottom plate (3), a group of communicating piston grooves (4) are opened. The upper ends of the first piston rods (5) slidably connected in each piston groove (4) are fixedly connected with insertion pins (6). And the inner bottom walls of each piston groove (4) are fixedly connected with tension springs (7). Two rubber layers (10) are inlaid on the outer surface of the hurdle (1). Two grooves (8) are opened on the bottom plate (3) below the rubber layer (10). The inner walls of the two grooves (8) are fixedly connected with air bags (9) communicated with the piston grooves (4). The inner walls of the two air bags (9) are fixedly connected with a group of telescopic springs (11). The rear stop bar (2) is clamped with two first sliding rings (12) slidably connected to the outer surface of the hurdle (1). A return spring (14) is arranged on the inner wall of the through groove (13) opened on the outer surface of the hurdle (1). The inner wall of the piston cylinder (15) inlaid on the right side wall of the through groove (13) is slidably connected with a second piston rod (16). The piston cylinder (15) is communicated with a liquid bottle (17) and a spray head (18) arranged on the outer surface of the hurdle (1).

2. The sow welfare delivery and nursing pen according to claim 1, characterized in that, The first sliding ring (12) is slidably connected with the inner wall of the through groove (13). The left end of the return spring (14) is fixedly connected with the outer surface of the first sliding ring (12). And the right end of the return spring (14) is fixedly connected with a counter ring (19) slidably connected to the outer surface of the hurdle (1). The left end of the second piston rod (16) extends into the through groove (13).

3. The sow welfare farrowing and nursing pen according to claim 2, characterized in that, A pair of threads (24) are opened on the right side of the outer surface of the hurdle (1). Nuts (25) are threadedly connected to the outer surfaces of the two threads (24). The nuts (25) are rotatably connected with the outer surface of the counter ring (19) through straight rods (26).

4. The sow welfare parturition and nursing pen according to claim 3, characterized in that, The left end of the straight rod (26) is rotatably connected with the outer surface of the counter ring (19). And the right end of the straight rod (26) is fixedly connected with the outer surface of the nut (25). The second piston rod (16) penetrates through the counter ring (19) and the return spring (14) and is fixedly connected with the outer surface of the first sliding ring (12).

5. The sow welfare parturition and nursing pen according to claim 1, characterized in that, The piston cylinder (15) is communicated with the upper part of the inner bottom wall of the liquid bottle (17) arranged on the outer surface of the hurdle (1) through an L-shaped pipe (20). A first one-way valve (21) is arranged at the fixed communication part of the L-shaped pipe (20) and the piston cylinder (15). A second one-way valve (22) is fixedly communicated at the communication part of the spray head (18) and the piston cylinder (15).

6. The sow welfare farrowing and nursing pen according to claim 5, characterized in that, The liquid outlet end of the first one-way valve (21) and the liquid inlet end of the second one-way valve (22) are both communicated with the inside of the piston cylinder (15). And the liquid inlet end of the first one-way valve (21) is communicated with the inside of the liquid bottle (17). The liquid outlet end of the second one-way valve (22) is communicated with the spray head (18). The spray head (18) is located on the left side of the upper surface of the bottom plate (3).

7. A sow welfare parturition and nursing pen according to claim 1, characterized in that, An observation window (27) is provided on the outer surface of the liquid bottle (17), and a bottle cap (28) is hinged to the upper surface of the liquid bottle (17). The liquid bottle (17) is fixedly connected to the outer surface of the railing (1), and a reinforcing rib (29) provided on the bottom surface of the liquid bottle (17) is fixedly connected to the outer surface of the railing (1).

8. A sow welfare delivery and nursing pen according to claim 1, characterized in that, A second sliding ring (23) is slidably connected to the lower part of the outer surface of the railing (1). The outer surface of the rear baffle (2) is clamped with the inner wall of the second sliding ring (23). The second sliding ring (23) is located directly below the first sliding ring (12).

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