Rapid channel for piglet vaccination

Abstract

The invention relates to the technical field of livestock breeding equipment, in particular to a piglet vaccination rapid channel device which comprises a V-shaped channel and a pressing type injection device, the pressing type injection device comprises a fixed stand column, an operating rod and a positioning rod, the fixed stand column is arranged on one side of the V-shaped channel, and the operating rod is arranged on the other side of the V-shaped channel. An operating rod and a positioning rod are hinged to the upper end of the fixed stand column at the same time, a needle cylinder sleeve is arranged in the middle of the positioning rod, a vaccine injector is installed in the needle cylinder sleeve, clamping rods are symmetrically arranged on the positions, on the two sides of the needle cylinder sleeve, of the positioning rod, and the clamping rods on the two sides form an inverted-V-shaped buckling groove. Through the innovative mechanical structure design, the efficiency and safety of piglet vaccination are remarkably improved, the integrated operation of rapid limiting and precise injection of pig bodies is achieved through the synergistic effect of the V-shaped channel adjustable side protection plates and the downward pressing type injection device, and compared with a traditional manual mode, the single-person operation efficiency can be greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of livestock breeding epidemic prevention tools, and particularly relates to a rapid vaccination channel for piglets. Background Art

[0002] Vaccination of piglets in farms is a core link in disease prevention and control in modern intensive pig farming. Its necessity stems from the realistic challenge of the sharply increased risk of pathogen transmission in the high-density pig farming environment. Highly contagious diseases such as classical swine fever, pseudorabies, and foot-and-mouth disease not only cause direct economic losses such as high mortality and growth retardation in piglets, but may also lead to the spread of regional epidemics, threatening food safety and public health security (such as the risk of zoonotic diseases). Vaccination stimulates specific immune responses by simulating natural infection, forming a herd immunity barrier, significantly reducing antibiotic dependence and treatment costs, and is a key biosecurity measure to ensure the health of the pig herd and improve breeding efficiency. In recent years, with the accelerating virus mutation and frequent cross-border pig imports, a scientific prevention and control system combining precise immunization procedures and antibody monitoring has become a necessary technical support for resisting disease threats and achieving sustainable development of the livestock industry.

[0003] In the intensive farming scenario, the traditional manual method of catching and vaccinating each pig one by one has pain points such as low efficiency, high stress on pigs, and high operational safety risks. In response to this need, modern farming equipment has developed a single-channel automated vaccination system that forces pigs to pass through the channel (usually in a V-shaped structure) in sequence and one-way, enabling rapid and continuous vaccination, effectively solving the manpower bottleneck and operation error problems in large-scale farm immunization operations.

[0004] In this channel-based vaccination method, pigs pass through one by one in a single direction, which is convenient for counting to avoid missed or repeated vaccinations. However, the injection method is still that the staff holds a syringe for injection. When injecting, the staff needs to hold the pig's body steady with one hand and inject with the other hand, making the operation process extremely inconvenient and increasing the workload of the staff. Summary of the Invention

[0005] Aiming at the problem of inconvenience in directly manually injecting vaccines, the present invention provides a rapid vaccination channel for piglets that combines a V-shaped vaccination channel and simplifies the vaccine injection method.

[0006] The solution adopted by the present invention to solve its technical problems is as follows: A rapid vaccination channel for piglets, comprising a V-shaped channel and a pressing injection device. The V-shaped channel includes a bottom plate and side guard plates. A set of side guard plates are symmetrically fixed obliquely on both sides of the bottom plate; the pressing injection device includes a fixed column, an operating rod and a positioning rod. A fixed column is arranged on one side of the V-shaped channel. The upper end of the fixed column is hinged to the operating rod and the positioning rod at the same time. The operating rod is a bent rod, which is divided into an inclined section and a horizontal section; a hanging ring is installed at the movable end of the positioning rod. The upper end of the hanging ring is sleeved on the horizontal section of the operating rod. An elastic member is arranged between the operating rod and the positioning rod. In the natural state, the positioning rod is parallel to the horizontal section of the operating rod; a syringe sleeve is arranged in the middle of the positioning rod, and a vaccine syringe is installed in the syringe sleeve. Clamping rods are symmetrically arranged on the positioning rods on both sides of the syringe sleeve. The clamping rods on both sides form an inverted V-shaped clamping groove. Rotating the operating rod downward drives the positioning rod to move downward, so that the inverted V-shaped clamping groove can be stuck on the back of the piglet to restrict the piglet. Continuing to press down the operating rod, the distance between the operating rod and the positioning rod is reduced, and the operating rod presses the vaccine syringe installed in the syringe sleeve to inject the vaccine.

[0007] Further, the vaccine syringe is a continuous syringe, which includes a syringe barrel, a push rod piston and a needle head. The push rod piston is inserted into the syringe barrel. A return spring is sleeved between the push rod piston and the syringe barrel. The needle head is installed at the liquid outlet end of the syringe barrel. A side one-way valve is arranged on the barrel body of the syringe barrel, which is communicated with the medicine bottle through the side one-way valve. An outlet one-way valve is arranged at the liquid outlet end of the syringe barrel. When the push rod piston is pushed, the side one-way valve closes, and the vaccine liquid medicine is output to the syringe through the outlet one-way valve for injection. After injection, the push rod piston moves outward under the action of the return spring, the outlet one-way valve closes, and the side one-way valve is communicated to draw the vaccine liquid medicine.

[0008] Further, symmetrical strip-shaped sliding holes are arranged on the positioning rods on both sides of the syringe sleeve. Sliders are arranged at the upper ends of the clamping rods. The sliders are sleeved in the strip-shaped sliding holes. The sliders extend upward and protrude above the positioning rods. External threads are arranged on the extended sections of the sliders. Nuts are sleeved on the external threads of the extended sections. The clamping rods are hoisted on the positioning rods by using the nuts, and the position of the sliders in the strip-shaped sliding holes is fixed by tightening the nuts.

[0009] Further, an inner ring platform is arranged in the syringe sleeve. An outer ring platform is arranged on the syringe barrel of the vaccine syringe. A needle-pushing mechanism is arranged below the operating rod. Symmetrical L-shaped hanging plates are arranged at the lower end of the needle-pushing mechanism. A strip-shaped groove is formed between the L-shaped hanging plates. A retaining edge is arranged at the upper end of the syringe barrel of the vaccine syringe. The syringe barrel is hoisted between the L-shaped hanging plates through the retaining edge. When the operating rod is pressed down, the vaccine syringe moves downward as a whole with the operating rod, and the needle head pierces into the body of the piglet until the outer ring platform of the syringe barrel abuts against the inner ring platform in the syringe sleeve. Continuing to press down the operating rod, at this time, the needle-pushing mechanism presses the push rod piston of the vaccine syringe to inject the vaccine.

[0010] Furthermore, a disinfection layer is provided at the lower end of the syringe sleeve, and the disinfection layer is an alcohol-containing fiber or sponge layer sleeved in the syringe sleeve. When the vaccine syringe moves up and down, the needle passes through the alcohol-containing fiber or sponge layer for disinfection.

[0011] Furthermore, a through hole is provided on the side of the syringe sleeve, and an infusion tube is inserted into the through hole. The end of the infusion tube located inside the syringe sleeve is connected to the disinfection layer, and the end of the infusion tube located outside the syringe sleeve is connected to the disinfection alcohol bottle. The disinfection alcohol bottle is hung on the operating rod, and gravity is used to make the disinfection alcohol flow in the infusion tube to replenish the disinfection alcohol for the disinfection layer.

[0012] Furthermore, the side guard plate includes a rectangular frame, at both ends of which are installed belt rollers, on which belts are wound, one of which is connected to a drive motor, and the belt protrudes out of the rectangular frame on one side toward the middle of the channel. After the piglets enter the V-shaped channel, the belts are rotated to push the piglets forward.

[0013] Beneficial effects of the invention: The invention significantly improves the efficiency and safety of piglet vaccination through innovative mechanical structure design. The synergistic effect of the V-shaped channel adjustable side guard plate and the downward pressure injection device realizes the integrated operation of rapid positioning and precise injection of the pig body, which can greatly improve the efficiency of a single person's work compared to the traditional manual method. At the same time, through the inverted V-shaped buckle groove adaptive adjustment mechanism and the double-check valve continuous injection system, the industry problems of poor adaptability to pigs of different sizes and inaccurate dosage control are solved, and the vaccine utilization rate is improved.

[0014] The combination of the needle retraction protection mechanism and the dynamic alcohol disinfection layer achieves needle contamination protection without the intervention of electronic components, reducing the risk of cross infection. Combined with the modular quick-release design, the equipment maintenance cost is reduced. The device achieves intelligent vaccination effects with a purely mechanical structure, and has the characteristics of high efficiency, low loss, and strong safety. It is especially suitable for promotion in remote farms and provides an economically feasible immunization solution for small and medium-sized farmers. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a front structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of a vaccine syringe; Figure 4 It is a three-dimensional structural schematic diagram of another embodiment of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the downward pressure injection device; Figure 6 It is a schematic diagram of the cross-sectional structure of a downward pressure injection device; Figure 7 It is a three-dimensional sectional view of a downward pressing injection device.

[0016] Reference numerals in the figure: 1, V-shaped channel; 2, downward pressing injection device; 11, bottom plate; 12, side guard plate; 21, fixed column; 22, operating rod; 23, positioning rod; 24, syringe sleeve; 25, clamping rod; 26, hanging ring; 27, elastic member; 28, needle pushing mechanism; 3, vaccine syringe; 31, syringe; 32, push rod piston; 33, needle; 34, side one-way valve; 35, liquid outlet one-way valve; 36, outer ring platform; 37, retaining edge; 4, disinfection layer; 41, infusion tube; 42, disinfection alcohol bottle; 121, belt roller; 122, belt; 123, drive motor; 124, rectangular frame; 231, strip-shaped sliding hole; 241, inner ring platform; 251, slider; 281, L-shaped hanging plate. Specific implementation mode

[0017] To make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below.

[0018] Example 1: Based on the existing single-channel vaccine inoculation system, the present invention provides a fast channel for piglet vaccine inoculation. As Figure 1 shown, the device includes a V-shaped channel 1 and a downward pressing injection device 2. The piglets are driven to pass through the V-shaped channel 1 one by one. During the passing process, the pressing injection device is used to quickly fix the pig body and inject the vaccine, greatly improving the efficiency of piglet vaccine inoculation and reducing the labor intensity of the staff. And the device is simple to manufacture, low in cost, does not require complex and expensive electronic equipment, and is convenient to promote and use in the livestock breeding industry.

[0019] Specifically, as Figure 2 shown, the V-shaped channel 1 includes a bottom plate 11 and side guard plates 12. A group of side guard plates 12 are symmetrically fixed on the bottom plate 11, and the upper sides of the side guard plates 12 are inclined outward to form the V-shaped channel 1. During the vaccine injection process, the piglets are driven to pass through one by one in a single direction, which is convenient for counting, avoids mixing of injected and non-injected ones, and prevents repeated injection and missed injection.

[0020] Among them, the side guard plates 12 and the bottom plate 11 form an included angle of 110° - 130°, and the adjustable range of the top opening width is 20 - 40 cm, which is suitable for single piglet passing and restricts the movement range of the piglets, facilitating the fixation of the piglets during the inoculation process.

[0021] In order to be able to drive the piglets to move forward in a relatively narrow channel, drive structures can be provided on both sides of the side guard plates 12 to drive the piglets to move in the channel. Specifically, as Figure 4As shown, the side guard plate 12 includes a rectangular frame 124. Belt rollers 121 are installed at both ends of the rectangular frame 124, and a belt 122 is wound around the belt rollers 121. One of the belt rollers 121 is drivingly connected to a driving motor 123. The side of the belt 122 facing the middle of the channel protrudes outside the rectangular frame 124. After piglets enter the V-shaped channel 1, the rotation of the belt 122 is used to push the piglets forward. A flexible layer can be added to the surface of the belt 122 to prevent the belt 122 from damaging the piglets.

[0022] As Figure 2 shown, the downward injection device 2 includes a fixed column 21, an operating rod 22, and a positioning rod 23. The fixed column 21 is arranged on one side of the V-shaped channel 1. A flange is provided at the bottom of the fixed column 21, and quick disassembly and assembly are achieved through a bolt group and a pre-set installation groove on the side of the channel.

[0023] The upper end of the fixed column 21 is simultaneously hinged to the operating rod 22 and the positioning rod 23. A shaft seat is arranged at the upper end of the fixed column 21, and the operating rod 22 and the positioning rod 23 are coaxially hinged to the shaft seat. The operating rod 22 is a bent rod, which is divided into an inclined section and a horizontal section; a hanging ring 26 is installed at the movable end of the positioning rod 23, and the upper end of the hanging ring 26 is sleeved on the horizontal section of the operating rod 22. An elastic member 27 is arranged between the operating rod 22 and the positioning rod 23. In the natural state, the positioning rod 23 is parallel to the horizontal section of the operating rod 22.

[0024] A syringe barrel sleeve 24 is arranged in the middle of the positioning rod 23, and a vaccine syringe 3 is installed in the syringe barrel sleeve 24. The vaccine syringe 3 is a continuous syringe. As Figure 3 shown, the continuous syringe includes a syringe barrel 31, a push rod piston 32, and a needle 33. The push rod piston 32 is inserted into the syringe barrel 31. A return spring is sleeved between the push rod piston 32 and the syringe barrel 31. The needle 33 is installed at the liquid outlet end of the syringe barrel 31. A side one-way valve 34 is arranged on the barrel body of the syringe barrel 31, which is connected to the medicine bottle through the side one-way valve 34. An outlet one-way valve 35 is arranged at the liquid outlet end of the syringe barrel 31. When the push rod piston 32 is pushed, the side one-way valve 34 closes, and the vaccine liquid medicine is output to the syringe through the outlet one-way valve 35 for injection. After injection, the push rod piston 32 moves outward under the action of the return spring, the outlet one-way valve 35 closes, and the side one-way valve 34 is connected to draw the vaccine liquid medicine. A polytetrafluoroethylene wear-resistant coating is provided on the inner wall of the syringe barrel sleeve 24. The vaccine syringe 3 is inserted and fixed in the syringe barrel sleeve 24. The push rod piston 32 at the upper end of the syringe protrudes above the sleeve, and its needle 33 protrudes from below the sleeve.

[0025] On the positioning rods 23 on both sides of the syringe sleeve 24, latch rods 25 are symmetrically arranged. The latch rods 25 on both sides form an inverted V-shaped buckle groove. Rotating the operating rod 22 downward drives the positioning rod 23 to move downward, so that the inverted V-shaped buckle groove can be stuck on the back of the piglet to restrict the piglet. Continuing to press down the operating rod 22, the distance between the operating rod 22 and the positioning rod 23 is reduced, and the operating rod 22 presses against the vaccine syringe 3 installed in the syringe sleeve 24 to inject the vaccine.

[0026] During use, insert the continuous syringe into the syringe sleeve 24. The side one-way valve 34 is connected to the medicine storage bottle through a silicone hose. The pre-pressing push rod piston 32 completes the exhaust of the liquid medicine pipeline, and the compression stroke of the return spring is set to 15 mm. The piglets are driven one-way into the V-shaped channel 1. Press down the operating rod 22 until the positioning rod 23 presses on the pig's back. At the same time, the latch rods 25 below the positioning rod 23 are stuck on both sides of the pig's body to restrict the piglets. Overcoming the elastic force of the elastic member 27, continue to apply force to press down the operating rod 22. The positioning rod 23 remains stationary, and the operating rod 22 flips downward to push the push rod piston 32 to complete the quantitative injection. After releasing the operating rod 22, the return spring pushes the piston to reset and replenish the liquid, and the elastic member 27 drives the device to reset.

[0027] The staff completes the positioning and restriction of the piglets and the vaccine injection by pressing down the operating rod 22. Through physical isolation, the operator and the pig body maintain a moving distance, reducing the risk of zoonotic disease transmission; by pressing down the operating rod 22 to complete the limiting positioning and injection operations, the operation composition of the vaccine injection is simplified, the work efficiency of vaccine inoculation is improved, and the labor intensity of the staff is reduced. Through mechanized transformation, the present invention solves the pain points of vaccine immunization operations in intensive farming and provides a set of efficient, accurate and traceable immunization solutions for the industry.

[0028] Example 2: In order to better match the body shape of the pig, the buckle groove formed by the latch rod 25 is used to fix and restrict the movement of the pig. As Figure 5 shown, symmetrical strip-shaped sliding holes 231 are provided on the positioning rods 23 on both sides of the syringe sleeve 24. The upper end of the latch rod 25 is provided with a slider 251. The slider 251 is sleeved in the strip-shaped sliding hole 231. The slider 251 extends upward and protrudes above the positioning rod 23. The extended section of the slider 251 is provided with external threads. A nut is sleeved on the external threads of the extended section. The latch rod 25 is hoisted on the positioning rod 23 by using the nut, and the position of the slider 251 in the strip-shaped sliding hole 231 is fixed by tightening the nut.

[0029] Embodiment 3: In Embodiment 1, the needle 33 of the syringe always protrudes outside the barrel sleeve 24. The needle 33 is prone to contamination, and it is also easy to be damaged by bumping as the needle 33 always protrudes outside the sleeve. Based on this, in this embodiment, a needle pushing mechanism 28 is further provided. The injection process of the syringe is divided into two steps by the needle pushing mechanism 28. The first step is to push the whole syringe to move in the sleeve for needle insertion operation; the second step is to push the piston 32 of the syringe push rod for injection operation.

[0030] Specifically, as Figure 6 and Figure 7 shown, a needle pushing mechanism 28 is provided below the operating rod 22. Symmetric L-shaped hanging plates 281 are provided at the lower end of the needle pushing mechanism 28. A strip-shaped groove is formed between the L-shaped hanging plates 281. A retaining edge 37 is provided at the upper end of the barrel 31 of the vaccine syringe 3. The barrel 31 is hoisted between the L-shaped hanging plates 281 through the retaining edge 37. At the same time, an inner ring platform 241 is provided in the barrel sleeve 24, and an outer ring platform 36 is provided on the barrel 31 of the vaccine syringe 3.

[0031] When the operating rod 22 is pressed down, the vaccine syringe 3 moves downward as a whole with the operating rod 22, and the needle 33 pierces into the piglet's body until the outer ring platform 36 of the barrel 31 abuts against the inner ring platform 241 in the barrel sleeve 24. Continuing to press down the operating rod 22, at this time, the needle pushing mechanism 28 presses down the piston 32 of the vaccine syringe 3 for injection.

[0032] Thus, when the downward injection device 2 is lifted, the syringe needle 33 will retract into the barrel sleeve 24, avoiding damage to the protruding needle tip or causing accidental injury.

[0033] Furthermore, in order to ensure the safety of the injection process, a disinfection layer 4 can also be provided at the lower end of the barrel sleeve 24. The disinfection layer 4 is a layer of alcohol-containing fiber or sponge sleeved on the barrel sleeve 24. During the up and down movement of the vaccine syringe 3, the needle 33 passes through the alcohol-containing fiber or sponge layer for disinfection.

[0034] The needle 33 is disinfected during the lifting and pressing processes to avoid cross-infection between piglets.

[0035] A through hole can also be provided on the side of the barrel sleeve 24. An infusion tube 41 is inserted through the through hole. The end of the infusion tube 41 located inside the barrel sleeve 24 is connected to the disinfection layer 4, and the end of the infusion tube 41 located outside the barrel sleeve 24 is connected to a disinfection alcohol bottle 42. The disinfection alcohol bottle 42 is hung on the operating rod 22, and the gravity is used to make the disinfection alcohol flow in the infusion tube 41 to replenish the disinfection alcohol for the disinfection layer 4.

[0036] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

Claims

1. A rapid channel for piglet vaccination, characterized in that, It includes a V-shaped channel and a pressing-down injection device. The V-shaped channel includes a bottom plate and side guard plates. A set of side guard plates are symmetrically and obliquely fixed on both sides of the bottom plate. The pressing-down injection device includes a fixed column, an operating rod, and a positioning rod. The fixed column is arranged on one side of the V-shaped channel. The upper end of the fixed column is hinged to the operating rod and the positioning rod at the same time. The operating rod is a bent rod, which is divided into an inclined section and a horizontal section. A hanging ring is installed at the movable end of the positioning rod. The upper end of the hanging ring is sleeved on the horizontal section of the operating rod. An elastic member is arranged between the operating rod and the positioning rod. In the natural state, the positioning rod is parallel to the horizontal section of the operating rod. A syringe sleeve is arranged in the middle of the positioning rod. A vaccine syringe is installed in the syringe sleeve. Clamping rods are symmetrically arranged on the positioning rod on both sides of the syringe sleeve. The two clamping rods form an inverted V-shaped clamping groove. Rotating the operating rod downward drives the positioning rod to move downward, so that the inverted V-shaped clamping groove can be clamped on the back of the piglet to restrict the piglet. Continuing to press down the operating rod, the distance between the operating rod and the positioning rod is reduced, and the operating rod presses against the vaccine syringe installed in the syringe sleeve to inject the vaccine.

2. The piglet vaccination fast track according to claim 1, wherein The vaccine syringe is a continuous syringe. The continuous syringe includes a syringe barrel, a push rod piston, and a needle. The push rod piston is inserted into the syringe barrel. A return spring is sleeved between the push rod piston and the syringe barrel. The needle is installed at the liquid outlet end of the syringe barrel. A side one-way valve is arranged on the barrel of the syringe barrel, which is connected to the medicine bottle through the side one-way valve. An outlet one-way valve is arranged at the liquid outlet end of the syringe barrel. When the push rod piston is pushed, the side one-way valve closes, and the vaccine liquid is output to the needle through the outlet one-way valve for injection. After injection, the push rod piston moves outward under the action of the return spring, the outlet one-way valve closes, and the side one-way valve is connected to extract the vaccine liquid.

3. The piglet vaccination fast track according to claim 1, wherein Symmetrical strip-shaped sliding holes are arranged on the positioning rod on both sides of the syringe sleeve. A sliding block is arranged at the upper end of the clamping rod. The sliding block is sleeved in the strip-shaped sliding hole. The sliding block extends upward and protrudes above the positioning rod. An external thread is arranged on the extended section of the sliding block. A nut is sleeved on the external thread of the extended section. The clamping rod is hoisted on the positioning rod by using the nut, and the position of the sliding block in the strip-shaped sliding hole is fixed by tightening the nut.

4. The rapid piglet vaccination channel according to claim 2, wherein An inner ring platform is arranged in the syringe sleeve. An outer ring platform is arranged on the syringe barrel of the vaccine syringe. A needle-pushing mechanism is arranged below the operating rod. Symmetrical L-shaped hanging plates are arranged at the lower end of the needle-pushing mechanism. A strip-shaped groove is formed between the L-shaped hanging plates. A retaining edge is arranged at the upper end of the syringe barrel of the vaccine syringe. The syringe barrel is hoisted between the L-shaped hanging plates through the retaining edge. When the operating rod is pressed down, the vaccine syringe moves downward as a whole with the operating rod, and the needle pierces into the body of the piglet until the outer ring platform of the syringe barrel abuts against the inner ring platform in the syringe sleeve. Continuing to press down the operating rod, at this time, the needle-pushing mechanism presses down the push rod piston of the vaccine syringe for injection.

5. The piglet vaccine inoculation fast track according to claim 4, characterized in that, A disinfection layer is arranged at the lower end of the syringe sleeve. The disinfection layer is a layer of alcohol-containing fiber or sponge sleeved in the syringe sleeve. During the up-and-down movement of the vaccine syringe, the needle passes through the alcohol-containing fiber or sponge layer for disinfection.

6. The piglet vaccination fast track according to claim 4, characterized in that, The side of the syringe sleeve is provided with a through hole, through which an infusion tube is inserted. The end of the infusion tube located inside the syringe sleeve is connected to a disinfection layer, and the end of the infusion tube located outside the syringe sleeve is connected to a disinfection alcohol bottle. The disinfection alcohol bottle is hung on the operating rod, and the gravity is used to make the disinfection alcohol flow in the infusion tube to supplement the disinfection alcohol for the disinfection layer.

7. The piglet vaccination fast track according to claim 1, characterized in that, The side guard plate includes a rectangular frame. At both ends of the rectangular frame, belt rollers are installed, and belts are wound around the belt rollers. One of the belt rollers is drivingly connected to a driving motor. The side of the belt facing the middle of the channel protrudes outside the rectangular frame. After the piglets enter the V-shaped channel, the piglets are pushed forward by the rotation of the belt.

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