A double-layer breeding cage

Abstract

The utility model discloses a double -deck cage for raising, the utility model relates to the technical field of agricultural breeding, scheme includes: a double -deck cage for raising, include: cage frame, stratified baffle, stratified baffle installs in cage frame, stratified baffle divides cage frame and is distributed from top to bottom first breeding room and second breeding room, cross -layer mouth, cross -layer mouth is set up on stratified baffle, ladder frame subassembly, ladder frame subassembly rotation installs on stratified baffle, wherein, when being in the intercommunication state, ladder frame subassembly is locked to the inclined state, forms the cross -layer walkway that extends from cross -layer mouth to second breeding room, can effectively expand the three -dimensional activity range of poultry, and let poultry have more sufficient activity area.

Description

Technical Field

[0001] This utility model relates to the field of agricultural breeding technology, specifically to a double-layer breeding cage. Background Technology

[0002] As a core facility in livestock farming, early simple cages made of bamboo and wood could only meet basic confinement needs, but suffered from poor durability, inconvenient cleaning, and inefficient space utilization, failing to meet the practical demands of environmental maintenance, animal protection, and ease of operation in livestock farming. With the upgrading of farming concepts, cage materials have gradually shifted to a combination of metal frames and environmentally friendly plastics. This eliminates the need for complex supporting equipment, conforms to the activity habits of livestock and poultry, provides efficient facility support for farming activities, and addresses the dual requirements of convenient management and a suitable animal living environment.

[0003] A multifunctional double-layer chicken cage structure disclosed in the authorization announcement (CN222639413U) includes a mounting frame and steel ladder side bars forming a double-layer rectangular frame structure. Each layer of the frame is wrapped with wire mesh, constituting the main structure of the chicken cage. In practical applications, the double-layer structure can accommodate the independent feeding needs of chickens on both the upper and lower layers, effectively avoiding interference between chickens on different layers during feeding, and significantly improving the convenience and efficiency of feeding operations.

[0004] The structure disclosed in this patent has defects in practical applications, specifically as follows: In actual breeding scenarios, the completely enclosed double-layer partition design blocks the longitudinal movement path of chickens, while the single-layer space is fixed and enclosed by wire mesh, which limits the range of chickens' independent movement to the fixed areas of each layer. Objectively, this makes the chickens' activity space relatively limited and makes it difficult to fully meet the basic space requirements of the flock's daily activities. Utility Model Content

[0005] The purpose of this utility model is to provide a double-layer breeding cage that addresses the problem that the completely enclosed partition design of existing double-layer breeding cages restricts the activity space of livestock and poultry, making it difficult to meet their basic space requirements for daily activities. This utility model proposes a solution that can effectively expand the three-dimensional activity range of livestock and poultry, allowing them to have more ample activity area.

[0006] This utility model is achieved through the following technical solution:

[0007] A double-layer breeding cage includes: a cage frame; a layered partition installed inside the cage frame, dividing the cage frame into a first breeding chamber and a second breeding chamber distributed from top to bottom; a cross-layer opening opened on the layered partition; and a ladder assembly rotatably mounted on the layered partition. When in a connected state, the ladder assembly is locked to an inclined state, forming a cross-layer walkway extending from the cross-layer opening to the second breeding chamber; when in a closed state, the ladder assembly is locked to a horizontal state, and the ladder assembly is attached to the bottom of the layered partition.

[0008] Furthermore, in this utility model, the aforementioned ladder assembly includes: two ladder side bars arranged in parallel; and multiple ladder treads, which are respectively installed between the two ladder side bars and are distributed sequentially at intervals.

[0009] Furthermore, in this utility model, two supports are installed at the bottom of the aforementioned layered partition, with the two supports located on both sides of the cross-layer opening; the two ladder side rods are distributed in a one-to-one correspondence with the two supports, and the ladder side rods are rotatably connected to the corresponding supports.

[0010] Furthermore, in this utility model, the above also includes a locking pin; at least one end of the side rod of the ladder frame away from the support is rotatably connected to a linkage ear plate (so that the linkage ear plate can adjust its posture and fit with the locking seat and the connecting lock seat), and the linkage ear plate has a linkage locking hole; a connecting lock seat is installed on the second breeding chamber corresponding to the rotation trajectory of the linkage ear plate, and the connecting lock seat has a connecting locking hole; a locking seat is installed on the layered partition corresponding to the rotation trajectory of the linkage ear plate, and the locking lock seat has a locking hole; wherein, when in the connected state, the linkage ear plate fits against the connecting lock seat, and the locking pin passes through the linkage locking hole and the connecting lock hole in sequence, thereby limiting the relative displacement between the linkage ear plate and the connecting lock seat; when in the locked state, the linkage ear plate fits against the locking lock seat, and the locking pin passes through the linkage locking hole and the locking lock hole in sequence, thereby limiting the relative displacement between the linkage ear plate and the locking lock seat.

[0011] Furthermore, in this utility model, the aforementioned ladder side rod includes a plurality of telescopic tube sections distributed sequentially, with two adjacent telescopic tube sections forming a telescopic cooperation structure; the same ladder tread is connected between the telescopic tube sections of the two ladder side rods that are at the corresponding telescopic level, so that the ladder tread moves synchronously with the corresponding telescopic tube section.

[0012] Furthermore, in this utility model, connecting shafts are respectively installed on both sides of the aforementioned ladder treads, and corresponding telescopic tube sections are installed on the connecting shafts; clearance grooves are respectively opened on both sides of the telescopic tube sections along the extension direction, and the contour of the clearance grooves is adapted to the radial projection contour of the connecting shafts; wherein, when two adjacent telescopic tube sections move towards each other, the connecting shafts can be embedded in the corresponding clearance grooves, thereby eliminating the spatial interference of the connecting shafts on the relative movement of the two adjacent telescopic tube sections.

[0013] Furthermore, in this utility model, the aforementioned cross-layer opening is detachably equipped with an isolation gate.

[0014] Furthermore, in this utility model, a sludge collection trough is provided on the lower side of the cage frame, and a sludge collection pull plate is embedded in the sludge collection trough. The sludge collection pull plate and the sludge collection trough are detachably connected by a pull-out mechanism. A plurality of second-row holes are provided at the bottom of the second breeding chamber, and the plurality of second-row holes are respectively connected to the sludge collection trough. A plurality of first-row holes are provided on the layered partition, and the diameter of the first-row holes is smaller than the diameter of the second-row holes.

[0015] Furthermore, in this utility model, the cage frame is provided with a plurality of first feeding openings, which are respectively connected to a first breeding room; a first feeding trough is installed on the outer wall of the cage frame, which is located at the edge of the plurality of first feeding openings; a plurality of second feeding openings are provided on the cage frame, which are respectively connected to a second breeding room; a second feeding trough is installed on the outer wall of the cage frame, which is located at the edge of the plurality of second feeding openings.

[0016] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0017] 1. This utility model constructs a double-layer independent breeding space through layered partitions, combined with a ladder frame assembly to form a two-way functional adaptable structure. In the connected state, the ladder frame assembly is locked as an inclined cross-layer walkway, providing animals with a stable cross-layer activity path and meeting the needs of three-dimensional space utilization; in the locked state, the ladder frame assembly is horizontally attached to the layered partitions, forming a double-layer isolation barrier. It can easily adapt to different breeding scenarios such as separate breeding of chicks and adults, and mixed breeding of animals of the same age, effectively reducing the adaptability limitations of double-layer breeding cages to different breeding stages and reducing the operational costs of replacing cages due to changes in breeding modes.

[0018] 2. This utility model employs multi-level nested telescopic tube sections on the side rods of the ladder frame. In the connected state, multiple telescopic tube sections extend to adapt to breeding rooms of different heights, ensuring that the bottom of the ladder frame fits snugly against the bottom wall of the second breeding room; in the locked state, multiple telescopic tube sections retract and are stored, allowing the entire ladder frame assembly to fit snugly against the layered partitions. This design easily adapts to the layout characteristics of breeding rooms with limited horizontal space but ample vertical space. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of a double-layer breeding cage;

[0021] Figure 2 This is a schematic diagram of the internal layout of the cage frame;

[0022] Figure 3 This is a schematic diagram of the ladder frame assembly after it has been extended.

[0023] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 This is a schematic diagram of a layered partition.

[0025] Figure 6 This is a schematic diagram of the telescopic unit.

[0026] The attached diagram shows the markings and corresponding component names:

[0027] 1-Cage frame, 2-Sludge collection trough, 3-Sludge collection drawer, 4-Second feeding port, 5-First feeding port, 6-Second feeding trough, 7-First feeding trough, 8-Door, 9-Layer partition, 10-Second row of holes, 11-First row of holes, 12-Cross-layer opening, 13-Isolation gate, 14-Ladder side bar, 15-Ladder step, 16-Linkage ear plate, 17-Connecting lock seat, 18-Locking pin, 19-Support, 20-Locking lock seat, 21-Telescopic unit, 22-Telescopic tube section, 23-Avoidance groove, 24-Connecting shaft, 25-First breeding chamber, 26-Second breeding chamber. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0029] Example

[0030] Please refer to Figures 1 to 6This utility model provides a double-layer breeding cage. It includes a cage frame 1, layered partitions 9, a cross-layer opening 12, and a ladder assembly. The layered partitions 9 are installed inside the cage frame 1, dividing the interior of the cage frame 1 into a first breeding chamber 25 and a second breeding chamber 26 distributed from top to bottom. The cross-layer opening 12 is formed through the layered partitions 9. The ladder assembly is rotatably connected to the bottom of the layered partitions 9 and can switch states within a preset angle range. When the ladder assembly is in the connected position, it is locked in an inclined posture, forming a cross-layer passageway with one end connected to the cross-layer opening 12 and the other end extending to the bottom wall of the second breeding chamber 26. When in the closed position, the ladder assembly is locked in a horizontal posture, completely fitting against the bottom surface of the layered partitions 9, blocking the vertical passage between the first breeding chamber 25 and the second breeding chamber 26, and also providing full coverage of the cross-layer opening 12.

[0031] The breeding cages are suitable for intensive farming of small poultry (such as chickens). The ladder frame assembly allows for multi-scenario adaptability. In the closed position, the first breeding chamber 25 and the second breeding chamber 26 are completely isolated, each capable of accommodating chicks and adults respectively. This hierarchical isolation prevents adult animals from trampling and injuring chicks. Simultaneously, animals can be evenly distributed between the two chambers according to stocking density requirements, preventing uneven feeding and environmental degradation caused by overcrowding in a single chamber. Once the chicks have grown to the size required for mixed-species rearing, the ladder frame assembly can be switched to the connecting position for mixed-species rearing. In the connecting position, the cross-level aisle provides a two-way cross-level activity path for the animals, effectively expanding their activity space, satisfying their natural activity habits, and improving the adaptability of the rearing environment.

[0032] During the cage cleaning process, zoned dry cleaning can be achieved by switching workstations: first, all animals are moved into the second rearing room 26, and the ladder assembly is switched to the locked workstation; after the first rearing room 25 is dry-cleaned, the animals are transferred back to the first rearing room 25, and the second rearing room 26 is dry-cleaned in the same way. This cleaning mode eliminates the need for additional animal storage devices, saving the animal herding, temporary storage, and return-to-cage steps in the traditional cleaning process, thus improving cleaning efficiency. In addition, the closed structure of the cage frame 1 can create an isolation and protective barrier, preventing animals from escaping and isolating them from external predators and pathogens, ensuring the safety and stability of the rearing process.

[0033] It should be noted that the side of the cage frame 1 is rotatably connected to the door 8 via a hinge assembly. The outline dimensions of the door 8 are perfectly matched to the side opening formed by the first breeding chamber 25 and the second breeding chamber 26. When the door 8 is rotated outward around the hinge assembly to open, the side spaces of the first breeding chamber 25 and the second breeding chamber 26 can be opened simultaneously, allowing operators to perform tasks such as feeding, health checks, and individual transfers of animals in the two breeding chambers. When the door 8 is rotated inward around the hinge assembly to close, a rigid lock can be achieved between the door 8 and the cage frame 1 using existing locking mechanisms (such as bolt locks, latch locks, etc.).

[0034] Please refer to Figure 3 In some embodiments of this application, the ladder assembly specifically includes two ladder side bars 14 and a plurality of ladder treads 15; wherein the two ladder side bars 14 are parallel and spaced apart, and the plurality of ladder treads 15 are spaced apart along the length direction of the ladder side bars 14, and the two ends of each ladder tread 15 are respectively connected to the two ladder side bars 14.

[0035] When the ladder assembly is switched to the connected work position and the two ladder side bars 14 are locked in an inclined position, the upper ends of the two ladder side bars 14 are connected to the edge of the cross-level opening 12, and the lower ends extend to the preset positioning position on the bottom wall of the second breeding room 26. At this time, multiple ladder steps 15 form a continuous support surface, constituting a walkway structure suitable for small animals to cross levels. With the anti-slip support provided by the ladder steps 15, it can effectively prevent small animals from slipping due to the smooth contact surface during the cross-level ascent, ensuring the smoothness of cross-level movement.

[0036] When the ladder assembly is switched to the locked position and the two ladder side bars 14 are locked in a horizontal position, the two ladder side bars 14 are completely in contact with the bottom end face of the layered partition 9. At this time, the projected area of ​​the ladder step 15 is completely matched with the opening area of ​​the cross-layer opening 12, which forms a full-coverage shield for the cross-layer opening 12, further improving the isolation and sealing of the first breeding room 25 and the second breeding room 26, and preventing small animals from moving around unexpectedly.

[0037] Please refer to Figure 5 In some embodiments of this application, the bottom end face of the layered partition 9 is fitted with two supports 19. The two supports 19 are symmetrically arranged with the longitudinal center line of the cross-layer opening 12 as the axis of symmetry, and the two supports 19 are respectively located on both sides of the cross-layer opening 12.

[0038] The two ladder side rods 14 and the two supports 19 form a one-to-one assembly relationship, with one end of each ladder side rod 14 forming a rotatable connection with the corresponding support 19. The support 19 adopts a U-shaped structure design, with the U-shaped opening facing away from the inter-floor opening 12. The end of the ladder side rod 14 is embedded in the inner accommodating space of the support 19, and a pin passes horizontally through both the side walls of the support 19 and the end of the ladder side rod 14, thus achieving a two-way rotatable hinge connection.

[0039] Please refer to Figure 3 and Figure 4 In some embodiments of this application, the ladder assembly further includes a locking pin 18; wherein at least one end of the ladder side rod 14 away from the support 19 is connected to a linkage ear plate 16, and a linkage lock hole is provided through the linkage ear plate 16. Corresponding to the trajectory of the linkage ear plate 16 rotating with the ladder side rod 14, a connecting lock seat 17 is installed on the bottom wall of the second breeding chamber 26, and a connecting lock hole is provided on the connecting lock seat 17; a locking lock seat 20 is installed on the bottom end face of the layered partition 9, and a locking lock hole is provided on the locking lock seat 20.

[0040] When the ladder assembly is switched to the connecting position, and the two ladder side rods 14 rotate around the support 19 to the preset tilt position, the linkage ear plate 16 rotates synchronously and fits against the mating surface of the connecting lock seat 17. At this time, the linkage lock hole and the connecting lock hole coincide. The locking pin 18 is inserted into the linkage lock hole and the connecting lock hole in sequence, which can effectively limit the relative displacement between the linkage ear plate 16 and the connecting lock seat 17, thereby locking the ladder assembly in the tilt position. To enhance the locking reliability, the locking pin 18 and the lock hole can adopt a threaded engagement structure, or after the locking pin 18 is inserted, its exposed end can be screwed and locked by a screw sleeve.

[0041] When the ladder frame assembly is switched to the locking position, the two ladder frame side rods 14 rotate around the support 19 to a horizontal position. The linkage ear plate 16 rotates synchronously and fits into the locking seat 20. At this time, the linkage lock hole and the locking lock hole coincide. The locking pin 18 is inserted into the linkage lock hole and the locking lock hole in sequence. With the limiting effect of the locking pin 18, the relative displacement between the linkage ear plate 16 and the locking seat 20 is limited. This can lock the ladder frame assembly in a horizontal position, ensure that the ladder frame side rods 14 fit into the bottom end face of the layer partition 9, and at the same time ensure the blocking effect of the ladder frame tread 15 on the cross-floor opening 12.

[0042] It should be noted that, to further enhance the connection rigidity of the ladder frame assembly in the locked state, each of the two ladder frame side bars 14 is connected to a linkage lug 16 at the end furthest from its corresponding support 19. The symmetrical locking design of the double linkage lugs 16 enables the locking force to be evenly transmitted to the two ladder frame side bars 14, effectively avoiding deformation or loosening of the ladder frame side bars 14 caused by unilateral force, and significantly improving the overall connection rigidity and attitude locking reliability of the ladder frame assembly.

[0043] For example, the ladder side rod 14 adopts a multi-stage telescopic structure, which is composed of multiple telescopic tube sections 22 that are sleeved in sequence, and an axial sliding fit is formed between adjacent telescopic tube sections 22; the same ladder tread 15 is connected between the telescopic tube sections 22 in the same telescopic level of the two ladder side rods 14, so that the ladder tread 15 and the corresponding telescopic tube section 22 complete the axial displacement synchronously, ensuring the integrity of the overall structure during the telescopic adjustment process.

[0044] When the ladder frame assembly switches to the connecting position, the multiple telescopic sections 22 move relatively apart, allowing the ladder frame side rod 14 to extend in length. After length adjustment, the linkage ear plate 16 on the outermost telescopic section 22 can fit snugly against the connecting lock seat 17, providing a rigid support foundation for the locking pin 18 to be inserted and locked. When the ladder frame assembly switches to the locking position, the multiple telescopic sections 22 move relatively closer, allowing the ladder frame side rod 14 to retract in length. After retraction, the linkage ear plate 16 on the outermost telescopic section 22 can fit snugly against the locking lock seat 20, ensuring the structural positioning accuracy in the locked state.

[0045] The telescopic adjustment structure allows the effective working length of the ladder frame side rod 14 to be adaptively adjusted according to the height parameters of the breeding room. This ensures that when the ladder frame assembly is switched to the connecting position in breeding rooms of different heights, the bottom end of the ladder frame assembly can connect with the bottom wall of the second breeding room 26, ensuring the structural continuity of the cross-level walkway. At the same time, when in the locked position, the length of the ladder frame assembly is reduced so that the linkage ear plate 16 and the locking seat 20 remain in contact, meeting the adaptation requirements of the ladder frame assembly and the breeding room space under different breeding scenarios, and avoiding the problem of support failure caused by height mismatch from a structural perspective.

[0046] Please refer to Figure 6 For example, connecting shafts 24 are fixedly mounted on both sides of the ladder step 15, and the connecting shafts 24 are rigidly connected to the corresponding telescopic tube sections 22; both sides of the telescopic tube section 22 are provided with clearance grooves 23 along their axial direction, and the cross-sectional profile of the clearance grooves 23 is adapted to the radial projection profile of the connecting shafts 24. Two telescopic tube sections 22 at the same telescopic level are connected by a ladder step 15 to form an "I"-shaped telescopic unit 21; adjacent telescopic units 21 adopt a nested assembly structure, in which the two telescopic tube sections 22 of one telescopic unit 21 are respectively fitted inside the two telescopic tube sections 22 of another telescopic unit 21, forming a combined structure that can move axially relative to each other.

[0047] When adjacent telescopic units 21 move axially towards each other, the connecting shafts 24 on both sides of the ladder plate 15 of the inner telescopic unit 21 can be synchronously embedded into the clearance grooves 23 of the corresponding telescopic tube sections 22 of the outer telescopic unit 21. The spatial accommodation function of the clearance grooves 23 eliminates the mechanical interference of the connecting shafts 24 on the relative movement of the telescopic tube sections 22, enabling adjacent telescopic units 21 to achieve a wider range of axial displacement adjustment. This structural design can adapt to scenarios where the horizontal space of the breeding room is limited but the vertical space is ample. Through the coordinated extension of multiple telescopic units 21, it is ensured that the ladder assembly can extend to the bottom wall of the second breeding room 26 when connecting workstations, meeting the structural adaptation requirements of breeding rooms with different space specifications.

[0048] It should be noted that when two adjacent telescopic units 21 move relative to each other, for the two telescopic tube sections 22 that form a sliding fit, one of the telescopic tube sections 22 has a guide slider on its outer wall surface, and the other telescopic tube section 22 has a guide groove that is adapted to the structure of the guide slider on its inner wall surface along the axial direction.

[0049] The sliding guide mechanism can constrain the relative movement trajectory of the two telescopic tube sections 22, ensuring that they slide along the preset axis, and can also prevent the two nested telescopic tube sections 22 from radially separating during relative movement, thereby ensuring the structural integrity of the telescopic unit 21 during the telescopic adjustment process.

[0050] Please refer to Figure 2 and Figure 3 In some embodiments of this application, an elastic layer (rubber, etc.) is fixed on the outer peripheral wall of the isolation gate 13. When the isolation gate 13 is embedded in the cross-layer opening 12, it can form an auxiliary isolation structure independent of the ladder assembly. It can build a double isolation barrier when the ladder assembly is in the locked state, effectively blocking the path of animals to move across layers unexpectedly through the cross-layer opening 12, and further improving the structural reliability of the first breeding room 25 and the second breeding room 26 in the isolation state.

[0051] Please refer to Figure 1 In some embodiments of this application, a sludge collection trough 2 is provided horizontally on the lower side of the cage frame 1. A sludge collection pull plate 3 is embedded in the sludge collection trough 2. The sludge collection pull plate 3 and the sludge collection trough 2 adopt a pull-out detachable structure, which can realize the quick assembly and disassembly of the sludge collection pull plate 3. A plurality of second row holes 10 are provided through the bottom panel of the second breeding chamber 26. The lower ends of the second row holes 10 are all connected to the internal space of the sludge collection trough 2. A plurality of first row holes 11 are provided through the layered partition 9. The hole diameter of the first row holes 11 is smaller than that of the second row holes 10.

[0052] In actual use, animal feces produced in the second breeding chamber 26 can fall directly into the sludge collection plate 3 through the second row of holes 10; animal feces produced in the first breeding chamber 25 fall sequentially into the second breeding chamber 26 through the first row of holes 11, and are then guided into the sludge collection plate 3 through the second row of holes 10, forming a layered collection path. When it is necessary to clean the feces, the operator can pull out the sludge collection plate 3 along the extension direction of the sludge collection tank 2 to remove it from the sludge collection tank 2 for centralized treatment.

[0053] The above structure works in conjunction with the telescopic function of multiple telescopic units 21. When the ladder assembly is in the locked state, the multiple telescopic units 21 can be retracted and stored together and fit against the bottom end face of the layered partition 9. Optimizing the retraction stroke design of the telescopic units 21 can further reduce the space occupied by the ladder assembly in the stored state, thereby reducing its obstruction to the path of feces falling from the second row of holes 10 and the first row of holes 11 to the sewage collection plate 3, and ensuring the circulation efficiency of the feces collection system.

[0054] Please refer to Figure 1 In some embodiments of this application, a plurality of first feeding openings 5 ​​are provided through the cage frame 1. On the outer side wall of the cage frame 1, a first feeding trough 7 is installed in the area below the outer port of the first feeding opening 5. The edge of the opening of the first feeding trough 7 is connected to the outer port of the first feeding opening 5 to ensure that the feed can be obtained by the animals in the first breeding room 25 through the feeding opening after it is put in.

[0055] Meanwhile, multiple second feeding openings 4 are also provided through the cage frame 1, and the inner ends of the second feeding openings 4 are all connected to the internal space of the second breeding chamber 26. On the outer wall of the cage frame 1, a second feeding trough 6 is installed in the area below the outer end of the second feeding opening 4, and the edge of the second feeding trough 6 is connected to the outer end of the second feeding opening 4. Thus, the animals in the first breeding chamber 25 and the second breeding chamber 26 can obtain feed from their respective feeding troughs through their corresponding feeding openings, realizing zoned feeding in the double-layer breeding space. This effectively avoids cross-interference between animals in different breeding chambers during feeding, and at the same time facilitates operators to carry out differentiated feed delivery and feeding management for animals in different breeding chambers.

[0056] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A double-layer breeding cage, characterized in that, include: Cage frame (1); A layered partition (9) is installed inside the cage frame (1) and divides the cage frame (1) into a first breeding chamber (25) and a second breeding chamber (26) distributed from top to bottom. A cross-layer opening (12) is provided on the layered partition (9); A ladder assembly, which is rotatably mounted on the layered partition (9); When in a connected state, the ladder assembly is locked to an inclined state, forming a cross-level walkway extending from the cross-level opening (12) to the second breeding room (26); When in the locked state, the ladder assembly is locked to a horizontal position and is attached to the bottom of the layered partition (9).

2. The double-layer breeding cage according to claim 1, characterized in that, The ladder assembly includes: Two ladder side bars (14) are arranged in parallel; Multiple ladder steps (15) are installed between two ladder side bars (14) respectively, and the multiple ladder steps (15) are distributed at intervals in sequence.

3. The double-layer breeding cage according to claim 2, characterized in that, Two supports (19) are installed at the bottom of the layered partition (9), and the two supports (19) are located on both sides of the cross-layer opening (12); The two ladder side rods (14) are respectively distributed in a one-to-one correspondence with the two supports (19), and the ladder side rods (14) are rotatably connected to the corresponding supports (19).

4. The double-layer breeding cage according to claim 3, characterized in that, It also includes a locking pin (18); At least one of the ladder side rods (14) is connected to a linkage ear plate (16) at one end away from the support (19), and the linkage ear plate (16) is provided with a linkage lock hole; A connecting lock seat (17) is installed on the second breeding chamber (26) corresponding to the rotation trajectory of the linkage ear plate (16), and a connecting lock hole is provided on the connecting lock seat (17); A locking seat (20) is installed on the layered partition (9) corresponding to the rotation trajectory of the linkage ear plate (16), and a locking hole is provided on the locking seat (20); When in a connected state, the linkage ear plate (16) is attached to the connecting lock seat (17), and the locking pin (18) passes through the linkage lock hole and the connecting lock hole in sequence, thereby limiting the relative displacement between the linkage ear plate (16) and the connecting lock seat (17). When in the locked state, the linkage ear plate (16) is attached to the locking seat (20), and the locking pin (18) passes through the linkage lock hole and the locking lock hole in sequence, thereby limiting the relative displacement between the linkage ear plate (16) and the locking seat (20).

5. The double-layer breeding cage according to any one of claims 2 to 4, characterized in that, The ladder side rod (14) includes a plurality of telescopic tube sections (22) distributed in sequence, and two adjacent telescopic tube sections (22) form a telescopic cooperation structure; The same ladder step (15) is connected between the telescopic tube sections (22) of the two ladder side rods (14) that are in the corresponding telescopic level, so that the ladder step (15) moves synchronously with the corresponding telescopic tube section (22).

6. The double-layer breeding cage according to claim 5, characterized in that, Connecting shafts (24) are installed on both sides of the ladder tread (15), and the corresponding telescopic pipe sections (22) are installed on the connecting shafts (24); The telescopic tube section (22) has clearance grooves (23) on both sides along the extension direction, and the outline of the clearance grooves (23) is adapted to the radial projection outline of the connecting shaft (24). When two adjacent telescopic tube sections (22) move toward each other, the connecting shaft (24) can be embedded in the corresponding clearance groove (23), thereby eliminating the spatial interference of the connecting shaft (24) on the relative movement of the two adjacent telescopic tube sections (22).

7. The double-layer breeding cage according to any one of claims 1 to 4, characterized in that, The cross-level opening (12) is detachably equipped with an isolation gate (13).

8. The double-layer breeding cage according to any one of claims 1 to 4, characterized in that, The cage frame (1) has a sludge collection trough (2) on its lower side. The sludge collection trough (2) is fitted with a sludge collection drawer (3). The sludge collection drawer (3) and the sludge collection trough (2) are detachably and pull-out. The bottom of the second breeding chamber (26) is provided with a plurality of second row holes (10), and the plurality of second row holes (10) are respectively connected to the sludge collection tank (2); The layered partition (9) has a plurality of first row holes (11), the diameter of the first row holes (11) being smaller than the diameter of the second row holes (10).

9. The double-layer breeding cage according to any one of claims 1 to 4, characterized in that, The cage frame (1) is provided with a plurality of first feeding ports (5), and the plurality of first feeding ports (5) are respectively connected to the first breeding room (25); A first feeding trough (7) is installed on the outer wall of the cage frame (1), and the first feeding trough (7) is located at the edge of a plurality of first feeding ports (5); The cage frame (1) is provided with multiple second feeding ports (4), and the multiple second feeding ports (4) are respectively connected to the second breeding room (26); A second feeding trough (6) is installed on the outer wall of the cage frame (1), and the second feeding trough (6) is located at the edge of a plurality of second feeding ports (4).

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