Free in-out fence convenient for sow to eat
By designing a free entry and exit slaughter with an inclined rear door, the problem of restricted movement in the sow's limit pen is solved, and the free entry and exit of the sow's feeding area is realized, the quality of life and reproduction efficiency is improved, and the cost of building a house is reduced.
Patent Information
- Application Number
- CN202421499742.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-06-27
AI Technical Summary
The existing sow limits limit the free movement of sows, resulting in health and welfare problems, and it is difficult to achieve the free entry and exit of sows in and out of the feeding area.
A free entry and exit slaughter is designed, and a tilted rear door is set up. The rear door is closed by gravity and free opening and closing is achieved through rotation of the articulated point, ensuring that the sows can enter and exit the feeding area freely.
The sows are freely entering and leaving the feeding area, avoiding the problem of mutual scrambling for food, and through simple structure and low-cost design, the cost of building a house is reduced, and the quality of life and breeding efficiency of the sows are improved.
Smart Images
Figure CN222897902U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of livestock breeding pens, in particular to a free access pen that facilitates sows to feed. Background Technique
[0002] The sow confinement pen, also called a single pen, is a professional pig-raising equipment that has been widely used in large-scale pig farms. In the early stage of sow pregnancy, due to the unstable development of the fetus, the sows are individually raised in confinement pens with very small size specifications to restrict the movement of the sows, thereby reducing the problem of abortion caused by group contact and food competition among sows; however, some problems have also emerged in the long-term use of the confinement pens, such as: having a negative impact on the health and welfare of sows, and the restricted movement is likely to cause limb problems, psychological stress, etc. in sows, thereby affecting their production performance and physical health.
[0003] Therefore, in recent years, the industry has begun to explore and implement more feeding systems that pay attention to animal welfare, such as free access pens. The free access pen allows sows to move freely within a specific area and enter specific feeding or resting areas when needed, thereby effectively improving the quality of life of sows, reducing stress, improving reproductive efficiency and the overall health status of sows. Based on this, our company has developed a free access pen with a simple structure, low manufacturing cost, and convenient for sows to freely enter and exit for feeding and artificial management. Content of the Utility Model
[0004] The utility model provides a free access pen that facilitates sows to feed, which can solve the technical problem that the existing confinement pen is not convenient for sows to freely enter and exit.
[0005] This application provides the following technical solutions:
[0006] A free access pen that facilitates sows to feed includes a pen frame. A feeding trough is arranged at the front end of the pen frame, and a rear pen door is arranged at the rear end of the pen frame; the rear pen door is rotatably arranged on any rear column of the pen frame through a connecting component, and the connecting component includes two groups, upper and lower. The distance between the hinge point of the rear pen door and the upper connecting component and the rear column is greater than the distance between the hinge point of the rear pen door and the lower connecting component and the rear column, so that the rear pen door is inclined relative to the rear column; under the action of gravity, the rear pen door is in a closed state. When a thrust is applied to the rear pen door, the rear pen door can rotate around the hinge point, and when the thrust is cancelled, the rear pen door returns to the closed state.
[0007] Technical principle: Since the rear gate is inclined relative to the vertical column, it is in a balanced state when the rear gate is in the closed state. When a force is applied to the rear gate, the rear gate rotates around the hinge point and gradually opens. When the rear gate is in the open state, the rear gate is in an inclined state. At this time, there is a certain angle between the downward center of gravity and the plane where the rear gate is located, and the door tends to rotate in the direction of the center of gravity. Therefore, when the force applied to the rear gate is cancelled, under the action of gravity, the rear gate will reset to the closed state. At this time, the gravity direction of the rear gate and the rear gate are on the same vertical plane, making the rear gate in a balanced state.
[0008] Beneficial effects:
[0009] 1. When the sow is moving freely, it is located outside the railing. When it needs to eat, the sow enters the railing through the rear gate. At this time, the sow's head touches the rear gate and applies an inward force to the rear gate, causing the rear gate to rotate inward and open. When the sow fully enters the railing to eat, the force applied to the rear gate disappears at this time, and the rear gate automatically closes; at this time, there is already a sow in the railing, and the sow's tail plays a certain blocking role on the rear gate. Even if the rear gate is pushed again from the outside, it cannot be fully opened, thus ensuring that once a sow enters the pen, other sows cannot enter, ensuring that the sows inside can eat at ease and solving the problem of sows competing for food with each other; when the sow finishes eating and exits backward from the railing, the sow's tail pushes the rear gate outward, causing it to open outward, so as to go out for activities, solving the problem of the sow freely entering and exiting.
[0010] 2. By setting the rear gate inclined, the gravity is cleverly used to keep the rear gate in the closed state, and it can be freely opened and closed. The structure is simple and can be applied on a large scale; and compared with using electrical control systems such as sensors and controllers, the production cost of this application is lower, effectively saving the construction cost of the pen.
[0011] Furthermore, both the upper connection component and the lower connection component include a fixed plate and a rotating plate. The fixed plate is arranged on the rear vertical column, and the rotating plate is rotatably arranged on the fixed plate through a rotating shaft. The rear gate is fixedly connected to the rotating plate; and the length of the fixed plate of the upper connection component is greater than the length of the fixed plate in the lower connection component, and the rotating shaft is arranged at the end of the fixed plate.
[0012] Beneficial effects: The connection structure is simple, facilitating quick installation, and ensuring that the rear gate is in an inclined state after installation.
[0013] Furthermore, a bolt is also arranged on the fixed plate of the upper connection component, and several card slots are also arranged on the rotating plate of the upper connection component. The bolt can be inserted into any one of the card slots to limit the rear gate.
[0014] Beneficial effects: By setting the card slot and the bolt to limit the rotation of the rear gate, the rear gate can be forced to be in the normally open or normally closed state. For example, when it is necessary to clean and rinse the pen, the rear gate is in the open state; when it is necessary to check, breed, or vaccinate the sows, the rear gate is forced to be in the closed state, which is convenient for manual management.
[0015] Further, three card slots are provided on the rotating plate of the upper connection assembly.
[0016] Beneficial effects: The three card slots correspond to three states of the rear gate, namely, opening inward into the pen, closing, and opening outward from the pen.
[0017] Further, it also includes a placement plate provided on the rear column. The placement plate is located above the fixed plate, and the bolt is slidably arranged on the placement plate; a limiting piece is provided on one side of the bolt, a through groove for the limiting piece to pass through is provided on one side of the placement plate, and a limiting groove for restricting the passage of the limiting piece is provided on the other side; when the limiting piece is located in the through groove, the lower end of the bolt is inserted into the card slot, and when the limiting piece is located in the limiting groove, the bolt is disengaged from the card slot.
[0018] Beneficial effects: The limiting piece is provided on the bolt to limit the bolt, and the placement plate can be used to place the bolt to avoid the problem of loss after the bolt is completely removed; and the usage method is simple. When the rear gate needs to be in the free state, pull up the bolt to make it disengage from the card slot on the rotating plate and place it in the placement plate; when it is necessary to restrict the movement of the rear gate, rotate the bolt to align the limiting piece with the through groove on the placement plate, and the bolt moves downward and is inserted into the card slot to restrict the rotation of the rear gate. Description of the Drawings
[0019] Figure 1 It is a schematic structural diagram of the free access pen of the present invention;
[0020] Figure 2 It is a schematic structural diagram of the free access pen in another direction;
[0021] Figure 3 It is Figure 2 the rear view of;
[0022] Figure 4 It is Figure 2 the enlarged schematic diagram at A1 in;
[0023] Figure 5 It is a schematic structural diagram of the rear gate;
[0024] Figure 6 It is Figure 2 the enlarged schematic diagram at A2 in;
[0025] Figure 7 It is Figure 3 the enlarged schematic diagram at A3 in;
[0026] Figure 8 For Figure 3 The enlarged schematic diagram at position A4 in Specific implementation manner
[0027] The following is a further detailed description through specific implementation manners:
[0028] The marks in the attached drawings of the specification include: hurdle 1, cross tie rod 10, front upright post 11, rear upright post 12, feeding trough 2, fixing frame 21, rear hurdle door 3, connecting assembly 4, lower connecting assembly 41, upper connecting assembly 42, upper fixing plate 421, fixing hole 4211, upper rotating plate 422, clamping groove 4221, strengthening plate 43, strengthening block 44, bolt 5, limiting piece 51, limiting inclined surface 511, placing plate 6, through hole 61, through groove 61, limiting groove 62.
[0029] Embodiment
[0030] As Figures 1 - 3 shown, a free access pen convenient for sows to feed includes a hurdle 1, a feeding trough 2 is arranged at the front end of the hurdle 1, and a rear hurdle door 3 is arranged at the rear end of the hurdle 1; specifically, the hurdle 1 includes two left and right side hurdles, cross tie rods 10 are arranged at the front ends and upper parts of the two side hurdles, the feeding trough 2 is arranged at the lower part of the front end of the hurdle 1 through a fixing frame 21, the fixing frame 21 is of a U-shaped structure, and the two free ends of the U-shaped structure are fixed on the front upright post 11 of the hurdle 1 by bolts; the hurdles 1 can be arranged in sequence to form a plurality of independent confinement pens, and multiple sows can enter to feed at the same time.
[0031] Among them, the rear hurdle door 3 is rotatably arranged on any one of the rear upright posts 12 of the hurdle 1 through a connecting assembly 4. As Figure 4 shown, in this embodiment, the connecting assembly 4 includes a lower connecting assembly 41 and an upper connecting assembly 42. The distance between the hinge point of the rear hurdle door 3 and the upper connecting assembly 42 and the rear upright post 12 is greater than the distance between the hinge point of the rear hurdle door 3 and the lower connecting assembly 41 and the rear upright post 12, so that the rear hurdle door 3 is inclined relative to the rear upright post 12; under the action of gravity, the rear hurdle door 3 is in a closed state. When a thrust is applied to the rear hurdle door 3, the rear hurdle door 3 can rotate around the hinge point, and when the thrust is cancelled, the rear hurdle door 3 returns to the closed state.
[0032] Specifically, as Figure 4As shown, both the upper connecting component 42 and the lower connecting component 41 include a fixing plate and a rotating plate. The fixing plate is arranged on the rear column 12, and the rotating plate is rotatably arranged on the fixing plate through a rotating shaft. The rear gate 3 is fixedly connected to the rotating plate. When the rear gate 3 rotates, the rotating plate rotates relative to the fixing plate. In this embodiment, for the convenience of distinction, the fixing plate of the upper connecting component 42 is called the upper fixing plate 421, the rotating plate is called the upper rotating plate 422, the fixing plate of the lower connecting component 41 is called the lower fixing plate, and the rotating plate is called the lower rotating plate. The length of the upper fixing plate 421 is greater than that of the lower fixing plate, and the rotating shaft is arranged at the end of the fixing plate, so that the rear gate 3 is inclined relative to the rear column 12; As Figure 3 shown, in this embodiment, the lower connecting component 41 and the upper connecting component 42 are also inclined, and the inclination direction is the same as that of the rear gate 3; Among them, in order to increase the strength of the upper fixing plate 421, a triangular reinforcing plate 43 is further arranged at the bottom of the upper fixing plate 421.
[0033] In this embodiment, a bolt 5 is further arranged on the upper fixing plate 421. Specifically, as Figure 6 shown, a fixing hole 4211 for inserting the bolt 5 is arranged on the upper fixing plate 421, and the bolt 5 is vertically inserted into the fixing hole 4211; As Figure 5 shown, a plurality of card slots 4221 are further arranged on the upper rotating plate 422. When the rear gate rotates to drive the upper rotating plate 422 to rotate and makes the card slots 4221 on the upper rotating plate 422 correspond to the fixing holes 4211, the bolt 5 can be vertically inserted into the card slots 4221 and the fixing holes 4211 to limit the rear gate 3. As Figure 5 shown, in this embodiment, in order to increase the strength of the upper rotating plate 422, an L-shaped reinforcing block 44 is further arranged on the upper surface of the upper rotating plate 422.
[0034] In this embodiment, three card slots 4221 are arranged on the upper rotating plate 422. The three card slots 4221 are evenly distributed and correspond to three states of the rear gate 3, namely, opening into the pen rack 1, closing, and opening out of the pen rack 1. When the bolt 5 is inserted into any one of the card slots 4221, the rear gate 3 can be in the corresponding state. For example, when it is necessary to clean and rinse the pen, the rear gate 3 can be forced to be in the open state, as Figure 3 shown in the middle position; When it is necessary to check, breed, and vaccinate the sows, the rear gate 3 is forced to be in the closed state for convenient manual management, as Figure 3 shown on the left in the figure.
[0035] As Figure 6As shown, in this embodiment, it further includes a placement plate 6 provided on the rear column 12. There are two placement plates 6, and both are located above the upper fixing plate 421. A through hole 61 for the insertion pin 5 to pass through is provided on each placement plate 6. The insertion pin 5 can pass through the uppermost placement plate 6 and extend into the fixing hole 4211 of the upper fixing plate 421. A limiting piece 51 is provided on one side of the insertion pin 5. A through groove 61 for the limiting piece 51 to pass through is provided on one side of the placement plate 6, and a limiting groove 62 for restricting the passage of the limiting piece 51 is provided on the other side. When the limiting piece 51 is located on the side of the through groove 61 of the placement plate 6, the lower end of the insertion pin 5 is inserted into the card slot 4221. When the limiting piece 51 is located on one side of the limiting groove 62, due to the limiting effect of the limiting groove 62, the bottom of the insertion pin 5 cannot be inserted into the card slot 4221. At this time, the rear gate 3 is in a free state, which is convenient for sows to enter and exit freely, as Figure 3 shown in the right position.
[0036] As Figures 7 - 8 shown, in this embodiment, in order to better limit the insertion pin 5, a limiting inclined surface 511 is provided at the lower end of the limiting piece 51, so that the lower end of the limiting piece 51 is smaller than the upper end. When the limiting piece 51 is located on one side of the limiting groove 62 of the placement plate 6, the limiting inclined surface 511 of the limiting piece 51 is located in the limiting groove 62. Since the upper end of the limiting piece 51 is larger than the lower end, the upper end is located outside the limiting groove 62, which can restrict the vertical downward movement and circumferential rotation of the insertion pin 5. Specifically, as Figure 7 shown, when it is necessary to limit the movement of the rear gate 3, align the limiting piece 51 of the insertion pin 5 with the through groove 61 on the placement plate 6. At this time, the insertion pin 5 moves downward and is inserted into the card slot 4221; as Figure 8 shown, when it is necessary for the rear gate 3 to be in a free state, pull the insertion pin 5 upward to disengage it from the card slot 4221 on the upper rotating plate 422, and rotate the insertion pin 5 so that the limiting piece 51 is located on one side of the limiting groove 62 of the placement plate 6. At this time, under the limiting action of the limiting groove 62, the insertion pin 5 cannot slide downward and be inserted into the card slot 4221.
[0037] The usage process of a free access pen that facilitates sows to eat is as follows:
[0038] When the sow is outside the railing 1 during free movement, when it needs to feed, the sow enters the railing 1 through the rear railing door 3. At this time, the sow's head is against the rear railing door 3, exerting an inward force on the rear railing door 3, causing the rear railing door 3 to rotate inward and open into the railing 1. When the sow fully enters the railing 1 to feed, the acting force applied to the rear railing door 3 at this time disappears, and the rear railing door 3 automatically closes. At this time, there is already a sow in the railing 1, and the sow's tail plays a certain blocking role on the rear railing door 3. Even if the rear railing door 3 is pushed again from the outside, it cannot be fully opened, thus ensuring that once a sow enters the pen, other sows cannot enter, ensuring that the sows inside can feed at ease and solving the problem of sows competing for food with each other. When the sow finishes feeding and exits backward from the railing 1, the sow's tail pushes the rear railing door 3 outward, causing it to open outward, so that the sow can go out for activities, solving the problem of the sow freely entering and exiting.
[0039] Through simple and novel design, the utility model enables the sow to freely enter and exit the railing 1, allowing the sow to move freely outside, increasing the amount of exercise of the sow; and when the sow is feeding, it can restrict other sows from entering the railing 1 to achieve the purpose of balanced feeding; and when needed, it can restrict the movement of the rear railing door 3 to make it in a normally closed state. At this time, like the confinement pen, it is convenient for the staff to carry out work such as immunoprophylaxis and estrus detection and breeding for the sows; finally, the structure of this application is simple, can be widely applied on a large scale, has a low production cost, and saves the cost of building the pen.
[0040] The above are only the embodiments of the utility model. The utility model is not limited to the fields involved in this embodiment case. Common knowledge such as the specific structures and characteristics known in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the utility model, several deformations and improvements can still be made, which should also be regarded as the protection scope of the utility model, and these will not affect the implementation effect of the utility model and the practicability of the patent. The protection scope required by this application should be subject to the content of its claims, and the specific implementation manners and other records in the specification can be used to explain the content of the claims.
Claims
1. A free access stall for sows to eat, comprising a stall frame, a feeding trough is arranged at the front end of the stall frame, and a rear stall door is arranged at the rear end of the stall frame; characterized in that: The rear gate is rotatably arranged on the rear column on either side of the fence frame through a connecting assembly, and the connecting assembly includes two groups, an upper group and an lower group. The distance between the hinge point between the rear gate and the upper connecting assembly and the rear column is greater than the distance between the hinge point between the rear gate and the lower connecting assembly and the rear column, so that the rear gate is inclined relative to the rear column. Under the action of gravity, the rear gate is in a closed state. When a thrust is applied to the rear gate, the rear gate can rotate around the hinge point. When the thrust is cancelled, the rear gate returns to a closed state.
2. A free access stall for sows to eat according to claim 1, characterized in that: The upper connecting assembly and the lower connecting assembly both include a fixed plate and a rotating plate, the fixed plate is arranged on the rear column, the rotating plate is rotatably arranged on the fixed plate through a rotating shaft, and the rear fence door is fixedly connected to the rotating plate; and the length of the fixed plate of the upper connecting assembly is greater than the length of the fixed plate in the lower connecting assembly, and the rotating shaft is arranged at the end of the fixed plate.
3. A free access stall for sows to eat according to claim 2, characterized in that: The fixing plate of the upper connecting component is also provided with a latch, and the rotating plate of the upper connecting component is also provided with a plurality of slots, and the latch can be inserted into any slot to limit the rear fence door.
4. A free access stall for sows to eat according to claim 3, characterized in that: Three slots are arranged on the rotating plate of the upper connecting assembly.
5. A free access stall for sows to eat according to claim 4, characterized in that: It also includes a placement plate arranged on the rear column, the placement plate is located above the fixed plate, and the latch is slidably arranged on the placement plate; a limiting plate is arranged on one side of the latch, a through groove for the passing of the limiting plate is arranged on one side of the placement plate, and a limiting groove for limiting the passing of the limiting plate is arranged on the other side; when the limiting plate is located in the through groove, the lower end of the latch is inserted into the card slot, and when the limiting plate is located in the limiting groove, the latch is disengaged from the card slot.