H-type cage culture laying hen injection immunization operation platform and operation method

By designing an H-type cage-raised layer hen immunization operation platform, and using an immunization cart and operation platform, the problems of high stress, high peritonitis rate, and low efficiency in H-type cage-raised chicken immunization were solved. This achieved efficient and low-stress immunization operation, and reduced equipment damage rate and operating costs.

CN120898744APending Publication Date: 2025-11-07LIAONING TIANQIN AGRICULTURAL TECHNOLOGY CO LTD +1
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Patent Information

Application Number
CN202510948057.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-10
Publication Date
2025-11-07

AI Technical Summary

Technical Problem

During the immunization process of H-type cage-raised laying hens, the chickens experience high stress, a high incidence of peritonitis, difficulty in ensuring immunization effectiveness, high physical exertion for staff, and a high rate of equipment damage, especially due to the inconvenience of operation and large distances required for chicken transportation caused by the high-rise cage design.

Method used

Design an H-type cage-raised layer hen injection immunization operation platform, which adopts an immunization cart and an operation platform, combined with omnidirectional and directional wheels to achieve two-person operation. The immunization cart can move laterally between chicken cage layers, and the operation platform can be flexibly adjusted to reduce the range of chicken transportation and body position changes. A one-way rotating door is used to prevent chickens from being mixed into the wrong cages.

Benefits of technology

It reduced stress in chickens, lowered the incidence of peritonitis, improved immunization efficiency and equipment lifespan, and reduced the physical exertion of operators and immunization costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of breeding, in particular to an H-shaped cage-rearing laying hen injection immunization operation platform which comprises an immunization trolley, the immunization trolley comprises a trolley body, a wheel set arranged at the bottom of the trolley body and a detachable sitting butt strap, the trolley body comprises a rectangular bottom frame, and stand columns are welded to the four corners of the bottom frame; a plurality of platform cross beams are welded between the two stand columns on one side in the width direction of the bottom frame, the heights of the platform cross beams on the two sides in the width direction of the bottom frame correspond to each other, the shape and the area of the sitting butt strap are consistent with the projection area and the shape of the bottom frame, and lap joint structures are arranged on the two sides of the width direction of the sitting butt strap. The riding transition slab is connected to platform cross beams on the two sides of the same height of the vehicle body through lap joint structures on the two sides of the riding transition slab, so that the riding transition slab forms a two-person riding position. The operation platform can be operated by two persons, frequent getting off and pushing are not needed, the chickens are transferred in a flat layer mode in the injection immunization process, and stimulation to the chickens is small.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of breeding, in particular to an H-type cage laying hen injection immunization operation platform and operation method. BACKGROUND

[0002] Modern laying hen farms are almost H-type cage breeding, which has large breeding density, small space occupation and mature automatic control equipment technology. H-type cage laying hen injection immunization brings the following problems due to high level of chicken cage, high frequency of immunization, large number of people participating in immunization, and multiple immunization sites:

[0003] 1. The immune process of the chicken is large. During the process of catching the chicken, injecting the needle and returning to the cage, the chicken needs to be up and down, which brings great stress. The person who injects the needle is usually in the middle of the second and third layers, and the chickens in the first and fourth layers need to move up and down, and the chickens in the fourth layer even hang upside down (usually catch the leg).

[0004] 2. The incidence of peritonitis in the chicken is greatly improved. It is caused by the large transfer range of the chicken and the sudden change of the body position.

[0005] 3. The immune effect is difficult to guarantee. The immune injection process is outside the cage and without the help of tools to fix the situation. The body position of the chicken is unstable, the injection site often appears flat, and the situation of killing the chicken, inaccurate injection dose, etc. occurs.

[0006] 4. The physical consumption of the immunization staff is large, and the immunization efficiency is low. Because the action range of the whole immune process is large, and the chicken of about 2 kg is caught and operated up and down, it brings great inconvenience to the immune work.

[0007] 5. The damage rate to the equipment is high. Because the high-low car is used, the person is in three layers, cannot move with force, can only move by grabbing or stepping on the cage net, trough, egg belt support, etc. with hands, which easily causes deformation and cracking of these parts. SUMMARY

[0008] To solve the above problems, the present application provides an H-type cage laying hen injection immunization operation platform and operation method, which can be operated by two people, does not need to frequently get off the car and push the car, the chicken is transferred horizontally during the injection immunization process, and the stimulation to the chicken is small.

[0009] To achieve the above purpose, the technical scheme adopted by the present application is:

[0010] In the first technical solution, the injection immunization operation platform for H-type cage laying hens comprises an immunization vehicle, the immunization vehicle comprises a vehicle body, a wheel set arranged at the bottom of the vehicle body, and a detachable riding plate, the vehicle body comprises a rectangular bottom frame, a stand is welded at each corner of the bottom frame, a plurality of platform cross beams are welded between two stands on one side of the bottom frame in the width direction, and the platform cross beams on both sides of the bottom frame in the width direction have corresponding heights, the riding plate has the same shape and area as the projected area and shape of the bottom frame, a lap joint structure is arranged on both sides of the riding plate in the width direction, and the riding plate is connected to the platform cross beams on both sides of the vehicle body at the same height through the lap joint structures on both sides of the riding plate, so that the riding plate forms two riding positions.

[0011] In the first technical solution, as a preferred solution, the wheel set comprises two directional wheels arranged at two corners on one side of the vehicle body in the width direction and two universal wheels arranged at two corners on the other side of the vehicle body in the width direction.

[0012] In the first technical solution, as a preferred solution, the vehicle body is a frame structure supported by square steel welding.

[0013] In the first technical solution, as a preferred solution, the H-type cage comprises a flat layer, a plurality of partitions are arranged on the flat layer to divide the flat layer into a plurality of hen raising rooms, and a flat sliding door is arranged at the front of each hen raising room.

[0014] In the first technical solution, as a preferred solution, a passage is arranged on the partition, a one-way rotating door is arranged at the passage, and a rotating cross bar symmetrically arranged at 180° is arranged on the one-way rotating door.

[0015] In the first technical solution, as a preferred solution, the one-way rotating door comprises a rotating shaft, both ends of the one-way rotating door are rotatably installed on the H-type cage through bearings, a first end of the rotating shaft is provided with two ratchets, and a stop pawl corresponding to the ratchets is arranged on the outside of the rotating shaft corresponding to the positions of the ratchets.

[0016] A curved boss is arranged at the position adjacent to the tooth groove of the ratchet in the rotating direction of the outer ring of the rotating shaft, and the curved boss cooperates with the stop pawl to form a limiting damping fitting piece.

[0017] When the stop pawl is sunk between the curved boss and the tooth groove of the ratchet, the rotating cross bar closes the passage.

[0018] In the first technical solution, as a preferred solution, the ratchets and the curved bosses have two groups, and the two groups of ratchets and curved bosses are arranged in a ring array with the axis of the rotating shaft as the center.

[0019] In the first technical solution, as a preferred solution, a flat sliding door is arranged at the position adjacent to the partition of the H-type cage.

[0020] In the first technical solution, as preferred, the front part of the H-shaped cage has a feeding trough, and an operating apron is detachably mounted on the feeding trough, and the operating apron can be pushed to translate on the feeding trough.

[0021] In the second technical solution, an H-shaped cage laying hen injection immunization operation method uses the H-shaped cage laying hen injection immunization operation platform as claimed in any one of the first technical solutions; the method comprises the following steps:

[0022] The immunization vehicle adjusts the height of the riding apron according to the height of the H-shaped cage layer, and the operator uses the universal wheels and the directional translation of the chassis to control the immunization vehicle;

[0023] There are two operators:

[0024] The first operator is a chicken catcher, who controls the back of the chicken with the right hand, and moves to the front door, and controls the two thighs of the chicken in the order of chest, abdomen and leg with the left hand, so that the chicken is in a position with the abdomen facing outward and the head facing backward, that is, the second operator, and the legs facing forward. When the chicken is fixed together with the second operator, the right hand can be released to catch the next chicken;

[0025] The second operator is a needle holder, who uses the right hand to hold the chicken together, and uses the thumb and index finger to find the injection site, pushes away the feathers and exposes the injection site, holds the needle with the left hand, and completes the injection, and then pushes the chicken into the cage with the right hand to complete the immunization process.

[0026] The beneficial effects of using the present application are:

[0027] In the operation platform, the operator can adjust the height of the riding apron according to the height of the H-shaped layer, and since the immunization vehicle uses universal wheels and directional wheels in cooperation, the immunization vehicle can be translated horizontally by pushing the chicken cage without getting off the immunization vehicle. The special design of the chicken cage avoids missing or over-injecting the immunization needle, and the operating apron is flexible and convenient.

[0028] In the operation method, the operation and connection actions are smooth, the stress on the chicken during the immunization operation process is reduced, the material loss is small, the egg drop of the laying hen is small, the immunization efficiency is improved, the efficiency of two people working together in unit time is higher, and the immunization cost is reduced by 10%. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 The figure is a schematic view of the position of the operating apron in the H-shaped cage laying hen injection immunization operation platform of the present application.

[0030] Figure 2 The figure is a schematic view of the structure of the operating apron in the H-shaped cage laying hen injection immunization operation platform of the present application. Figure 1 The figure is a schematic view of the structure of the operating apron in the H-shaped cage laying hen injection immunization operation platform of the present application.

[0031] Figure 3 The figure is a schematic view of the position of the immunization vehicle in the H-shaped cage laying hen injection immunization operation platform of the present application. The figure is a schematic view of the position of the immunization vehicle in the H-shaped cage laying hen injection immunization operation platform of the present application.

[0032] Figure 4 The disassembled schematic diagram of the immunization vehicle.

[0033] Figure 5 The assembled schematic diagram of the immunization vehicle.

[0034] Figure 6 The schematic diagram of the cage in the injection operation platform for H-type cage laying hens according to the present application in embodiment 1.

[0035] Figure 7 The use state diagram of the cage in the injection operation platform for H-type cage laying hens according to the present application in embodiment 1.

[0036] Figure 8 The schematic diagram of the one-way rotating door.

[0037] Figure 9 The schematic diagram of the ratchet structure.

[0038] Figure 10 The schematic diagram of the cage in the injection operation platform for H-type cage laying hens according to the present application in embodiment 2.

[0039] Figure 11 The use state diagram of the cage in the injection operation platform for H-type cage laying hens according to the present application in embodiment 2.

[0040] The reference signs include:

[0041] 10-H type cage, 11-feeding trough, 111-trough body, 112-feeding trough outer edge, 12-operation apron, 121-apron body, 122-limiting structure, 13-partition, 131-fixed horizontal bar, 14-one-way rotating door, 141-rotating horizontal bar, 142-ratchet, 143-curved boss, 144-stopping claw, 15-front door, 151-fixed door, 152-side sliding door;

[0042] 20-immunization vehicle, 21-bottom frame, 22-square frame, 23-stand column, 24-first platform crossbeam, 25-second platform crossbeam, 26-omniwheel, 27-directional wheel, 28-sitting apron, 281-apron structure;

[0043] 30-operator, 31-operation position. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical scheme and advantages of the present technical solution more clear and explicit, the present technical solution will be further described in detail below in combination with specific embodiments. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present technical solution.

[0045] Embodiment 1

[0046] The embodiment provides an injection immunization operation platform for H-type cage 10 hens, which mainly comprises a modified H-type cage 10, an operation board 12 and an immunization vehicle 20.

[0047] As shown in Figure 1 , the front part of the H-type cage 10 is a feeding trough 11, the top of the feeding trough 11 is covered with a movable operation board 12, the operation board 12 can be pushed by an operator 30 to translate along the length extension direction of the feeding trough 11, the operation board 12 can be translated according to the position of the operator 30 for injecting the hens, and the operation board 12 serves as an operation platform for injection.

[0048] The feeding trough 11 and the operation board 12 are generally as shown in Figure 2 , the feeding trough 11 comprises a trough body 111, the top of the trough body 111 is open, and the front and rear edges of the trough body 111 are the outer edges 112 of the feeding trough, the plate body 121 of the operation board 12 is a flat plate, and the plate body 121 is bent at the front part and the rear part to form a limiting structure 122 on the basis of the maximum spacing of the outer edges 112 of the feeding trough, so that the operation board 12 is prevented from falling off during translation.

[0049] As shown in Figure 3 , the H-type cage 10 has a plurality of cages, and the general spacing is 800mm-900mm, the immunization vehicle 20 is arranged between the two adjacent H-type cages 10, two operators 30 are arranged on the immunization vehicle 20, and the width of the immunization vehicle 20 in the spacing direction of the H-type cages 10 is about 600mm, which is optimal.

[0050] As shown in Figure 4 , in the embodiment, the immunization vehicle 20 comprises a vehicle body, a wheel set arranged at the bottom of the vehicle body and a detachable riding board 28, the vehicle body comprises a rectangular bottom frame 21, a stand 23 is welded at each of four corners of the bottom frame 21, a plurality of platform crossbeams are welded between the two stands 23 on one side of the bottom frame 21 in the width direction, the heights of the platform crossbeams on the two sides of the bottom frame 21 correspond to each other, the shape and area of the riding board 28 are consistent with the projection area and shape of the bottom frame 21, a lap joint structure 281 is arranged on each of the two sides of the riding board 28 in the width direction, and the riding board 28 is connected to the platform crossbeams on the same height on the two sides of the vehicle body through the lap joint structures 281 on the two sides, so that the riding board 28 forms two riding positions.

[0051] The bottom frame 21 in the embodiment is welded with reinforcing beams, and three platform cross beams are welded on the left two vertical columns 23, and three platform cross beams are welded on the corresponding right two vertical columns 23. The six platform cross beams are opposite to each other and have the same height. The two lowermost platform cross beams are welded with reinforcing longitudinal beams, that is, a square frame 22 is formed. The square frame 22 can be used as a platform on which the riding plate 28 is placed, and also as a reinforcing structure between the vertical columns 23 of the immunization vehicle 20. Above the square frame 22 are two first platform cross beams 24 and two second platform cross beams 25. The immunization vehicle 20 with the structure is basically open at the front and rear parts, which is convenient for the operators 30 to ride, and can ensure the stability of the vehicle structure. In combination with Figure 4 and Figure 5 As shown in the figure, the four corner hooks of the riding plate 28 are provided with hook-shaped lapping structures 281, which can be hung on the platform cross beams of the square frame 22, or on the two first platform cross beams 24 and the two second platform cross beams 25, which can be adaptively selected according to the height of the flat layer of the H-shaped cage 10. It can be understood that reinforcing ribs (not shown in the figure) are welded below the riding plate 28 to ensure the strength of the riding plate 28.

[0052] In addition, the wheel set includes two directional wheels 27 arranged at two corners on one side in the width direction of the vehicle body, and two universal wheels 26 arranged at two corners on the other side in the width direction of the vehicle body. When the two operators 30 ride on the riding plate 28, the H-shaped cage 10 can be pushed by the feet, so that the immunization vehicle 20 can move on the ground.

[0053] In the embodiment, as shown in the figure, Figure 6 The H-shaped cage 10 in the embodiment is provided with a plurality of longitudinal partitions 13 in the same flat layer, the partitions 13 are rear half net-shaped partitions 13, the front part of the partitions 13 flows through the channel, the two adjacent partitions 13 form a chicken house, and a unidirectional rotating door 14 with a rotating shaft arranged vertically is arranged at the channel. Meanwhile, the front part of the H-shaped cage 10 corresponding to the front part of the chicken house is provided with a front door 15, and the front door 15 includes a fixed door 151 and a side sliding door 152 entering the fixed door 151.

[0054] As shown in the figure, Figure 7 When the operator 30 is located at the operating position 31, the side sliding door 152 of the left chicken house can be opened, and then the chicken is taken from the chicken house. After the chicken is injected, the chicken is thrown from the front part of the unidirectional rotating door 14 into the adjacent right chicken house. In order to avoid that the chickens in the right chicken house enter the left chicken house during the rotation of the unidirectional rotating door 14, a fixed crossbar 131 is arranged at the front part of the partition 13. In combination with Figure 8As shown, the one-way revolving door 14 is equipped with two vertical rows of rotating crossbars 141, each row comprising 3-4 individual rotating crossbars 141. There are 2-3 fixed crossbars 131 at the front of the partition 13, with the fixed crossbars 131 and rotating crossbars 141 staggered in height. The fixed crossbars 131 prevent chickens from the right-side chicken coop from mixing into the left-side chicken coop when the rotating crossbars 141 are removed. During this process, the operator 30's operating position 31 is located in front of the side sliding door 152 of the left-side chicken coop.

[0055] like Figure 9 As shown, the one-way revolving door 14 includes a rotating shaft. Both ends of the one-way revolving door 14 are rotatably mounted on the H-shaped cage 10 via bearings. The first end of the rotating shaft is provided with two ratchet teeth 142 arranged symmetrically at 180 degrees. On the outer side of the rotating shaft, corresponding to the position of the ratchet teeth 142, there is a stop pawl 144 corresponding to the ratchet teeth 142. On the outer ring of the rotating shaft, a curved boss 143 is provided near the rear of the tooth groove of the ratchet teeth 142 in the rotation direction. The curved boss 143 and the stop pawl 144 form a limiting damping engagement. When the stop pawl 144 is inserted between the curved boss 143 and the tooth groove of the ratchet teeth 142, the rotating crossbar 141 closes the passage.

[0056] In this embodiment, the stop pawl 144 is a plastic sheet with a certain plastic deformation capability. The stop pawl 144, through its own bending deformation, causes its end to engage with the tooth groove of the ratchet 142, thus preventing rotation. When operator 30 operates the one-way revolving door 14... Figure 9 When the pivot of the one-way revolving door 14 is rotated in the direction indicated by the middle arrow, the stop pawl 144 first passes over the ratchet 142 via the slope at the front of the ratchet 142 and enters the groove of the ratchet 142. At the same time, the front part of the stop pawl 144 engages between the ratchet 142 and the curved boss 143. At this time, the operator will feel a vibration after pushing the one-way revolving door 14 by hand over the slope at the front of the ratchet 142, and then a certain amount of damping will be generated.

[0057] If the operator rotates the one-way revolving door 14 in the direction of the arrow, the stop pawl 144 will jump out from the curved boss 143, making it easier for the one-way revolving door 14 to rotate and enter the next step rotation cycle.

[0058] In this embodiment, after the immunization operation, before the operator 30 leaves, the one-way rotating door 14 and the H-shaped cage 10 need to be locked with separate "U"-shaped latches to prevent the chickens from pushing the one-way rotating door 14.

[0059] Example 2

[0060] The immunization vehicle 20 and the operating platform 12 in this embodiment have the same structure and usage as the immunization vehicle 20 and the operating platform 12 in Embodiment 1. The difference is that a simple and conventional H-shaped cage 10 is proposed.

[0061] As Figure 10 shown, the partition 13 in the H-shaped cage 10 in this embodiment extends to the vicinity of the front door 15, at which time the adjacent left and right chicken raising compartments in the flat layer are provided with side pull doors 152 at the partition 13 between the two, and the corresponding operation positions 31 for the immunization operation are located on the left and right sides in front of the partition 13, respectively. When the immunization operation is performed, both of the side pull doors 152 need to be opened.

[0062] In the operation platform, the operator 30 can adjust the height of the riding platform 28 according to the height of the H-shaped flat layer. Since the immunization vehicle 20 uses universal wheels 26 and directional wheels 27 in cooperation, the immunization vehicle 20 can be moved horizontally by pushing the chicken cage without getting off the immunization vehicle 20. The chicken cage is specially designed to avoid missing or over-vaccinating the chickens, and the operation platform 12 is flexible and convenient.

[0063] Based on the H-shaped cage 10 egg injection immunization operation platform in the above-mentioned embodiment 1 and embodiment 2, this embodiment further proposes an H-shaped cage 10 egg injection immunization operation method. The immunization vehicle 20 adjusts the height of the riding platform 28 according to the height of the H-shaped cage 10, and the operator 30 moves the immunization vehicle 20 with the help of the universal wheels 26 and directional wheels 26 of the chassis.

[0064] The operation platform 12 forms a platform that can slide horizontally after being lapped on the feeding trough 11 by the limiting structure 122. The operator 30 can move the operation platform 12 smoothly on the feeding trough 11 according to the position needs.

[0065] The operator 30 is two people: the first operator 30 is a chicken catcher, who controls the back of the chicken with the right hand and moves to the front door 15, and controls the two thighs of the chicken in the order of chest, abdomen and leg with the left hand. The chicken is in a body position with the abdomen facing outward and the head facing backward, i.e. the second operator 30 and the legs facing forward. When the chicken is fixed together with the second operator 30, the right hand can be released to catch the next chicken. The second operator 30 is a needle holder, who uses the right hand to hold the needle together with the fixed chicken, and uses the thumb and index finger to find the injection site, removes the feathers and exposes the injection site, holds the needle with the left hand and completes the injection, and pushes the chicken into the cage with the right hand to complete the immunization process. In the operation method, the operation and connection actions are smooth, the stress on the chicken is reduced, the material loss is small, the egg production of the laying hens is reduced, the immunization efficiency is improved, the efficiency of two people working together in a unit of time is higher, and the immunization cost is reduced by 10%.

[0066] It should be noted that in the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only for the purpose of description and cannot be understood as indicating or implying relative importance. At the same time, in the description of the present application, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0067] The above is only the preferred embodiment of the present application, and those skilled in the art can make many changes in specific implementation and application range according to the technical content of the present application, as long as these changes do not deviate from the concept of the present application, they all belong to the protection scope of the present patent.

Claims

1. An injection immunization operation platform for H-type cage laying hens, characterized in that: The application relates to an immunization vehicle, which comprises a vehicle body, a wheel set arranged at the bottom of the vehicle body and a detachable sitting plate, wherein the vehicle body comprises a rectangular bottom frame, a stand is welded at each corner of the bottom frame, a plurality of platform cross beams are welded between two stands on one side of the bottom frame in the width direction, the platform cross beams on the two sides of the bottom frame in the width direction have corresponding heights, the sitting plate has the same shape and area as the projected area of the bottom frame, and a lap joint structure is arranged on the two sides of the sitting plate in the width direction, the sitting plate is connected to the platform cross beams on the two sides of the vehicle body at the same height through the lap joint structures on the two sides of the sitting plate, and the sitting plate forms two sitting positions.

2. The H-type cage laying hen injection immunization operation platform according to claim 1, characterized in that: The wheel set comprises two directional wheels arranged at two corners on one side of the vehicle body in the width direction and two universal wheels arranged at two corners on the other side of the vehicle body in the width direction.

3. The H-type cage laying hen injection immunization operation platform according to claim 1, characterized in that: The vehicle body is a frame structure supported by square steel welding.

4. The H-type cage laying hen injection immunization operation platform according to claim 1, characterized in that: The H-shaped cage comprises a flat layer, a plurality of partitions are arranged on the flat layer to divide the flat layer into a plurality of chicken raising compartments, and a flat sliding door is arranged at the front of each chicken raising compartment.

5. The H-type cage laying hen injection immunization operation platform according to claim 4, characterized in that: A passage is arranged on the partition, a one-way rotating door is arranged at the passage, and a rotating cross bar arranged in 180-degree symmetry is arranged on the one-way rotating door.

6. The H-type cage laying hen injection immunization operation platform according to claim 5, characterized in that: The one-way rotating door comprises a rotating shaft, the two ends of the one-way rotating door are rotatably installed on the H-shaped cage through bearings, a first end of the rotating shaft is provided with two ratchets, and a stop pawl corresponding to the ratchets is arranged on the outside of the rotating shaft corresponding to the positions of the ratchets. A curved boss is arranged at the rear of the tooth groove corresponding to the ratchet in the rotating direction of the rotating shaft outer ring, and the curved boss cooperates with the stop pawl to form a limiting damping matching part. When the stop pawl is sunk between the curved boss and the tooth groove of the ratchet, the rotating cross bar closes the passage.

7. The H-type cage laying hen injection immunization operation platform according to claim 6, characterized in that: The ratchets and the curved bosses have two groups, and the two groups of ratchets and curved bosses are arranged in a ring array with the axis of the rotating shaft as the center.

8. The H-type cage laying hen injection immunization operation platform according to claim 4, characterized in that: A flat sliding door is arranged at the position close to the partition of the H-shaped cage.

9. The H-cage layer chicken injection immunization operation platform according to any one of claims 4-8, characterized in that: A feeding trough is arranged at the front of the H-shaped cage, and an operation plate is detachably arranged on the feeding trough, and the operation plate can be pushed to translate on the feeding trough.

10. A method for injection immunization of H-type cage laying hens, characterized by: The method comprises the following steps: adjusting the height of the sitting plate according to the height of the H-shaped cage, controlling the vehicle to move in a directional and translational manner by means of the universal wheels of the bottom disc, and using the H-shaped cage injection immunization operation platform according to any one of claims 4-8. The operation person is two people: The first operation person is a chicken grabbing person, the right hand controls the back of the chicken, and the left hand controls the two thighs of the chicken in the order of chest, abdomen and leg, the chicken body position is that the abdomen faces outward and the head faces backward, that is, the second operation person and the legs face forward, when the chicken is fixed together with the second operation person, the right hand can be released to grab the next chicken; The second operation person is a needle holding person, the right hand cooperates with the fixed chicken, the thumb and the index finger find the injection site, the feathers are pushed away and the injection site is exposed, the left hand holds the needle to complete the injection, and the right hand pushes the chicken into the cage to complete the immunization process. ​