Adjustable fence for pig breeding
By designing an adjustable pig farming fence, and utilizing C-shaped rods, transmission rods, and bevel gear mechanisms, the problem of difficult adjustment of existing fences was solved, enabling flexible adjustment of the fence range and reducing farming costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-04-03
AI Technical Summary
Most existing pig farming fences are made of welded iron rods. When adjusting the enclosure area, they need to be cut and re-welded, which increases the cost of farming and makes it inconvenient to adjust according to the size of the pig herd.
An adjustable fence consisting of a left frame and a right frame was designed. The fence can be adjusted and fixed by means of movable C-shaped rods, transmission rods, bevel gears and screw mechanisms, combined with positioning mechanisms and rollers, so as to facilitate the adjustment of the enclosure range according to the size of the pig herd.
It enables flexible adjustment of the fence area, reduces breeding costs, and improves the mobility and stability of the fence to meet the needs of different pig herd sizes.
Smart Images

Figure CN224069415U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of pig farming facilities, specifically an adjustable fence for pig farming. Background Technology
[0002] Pig farming is an agricultural production activity, primarily involving raising pigs for food consumption. The pig farming industry is a vital sector of my country's agriculture, playing a crucial role in ensuring a safe supply of meat. my country's pig farming industry is transitioning from traditional to modern methods, with significant changes occurring in breeding models, regional distribution, production methods, and production capacity.
[0003] In pig farming, fences are needed to protect the pigpens and prevent pigs from running around and affecting the farming results. However, most existing fences are made of welded iron rods, which need to be cut and re-welded when the enclosure area needs to be adjusted. This makes it inconvenient to adjust the enclosure area according to the size of the pig herd and increases the farming cost.
[0004] Therefore, it is necessary to modify it by setting up a movable fence mechanism, so that the enclosure range can be adjusted according to the size of the pig herd, thereby reducing breeding costs. Utility Model Content
[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide an adjustable pig farming fence. This fence features a movable mechanism, allowing for easy adjustment of the enclosure area according to the size of the pig herd, thus reducing farming costs. It solves the problem that existing fences, mostly welded from iron rods, require cutting and re-welding when the enclosure area needs adjustment, making it inconvenient to adjust the enclosure area according to the size of the pig herd and increasing farming costs.
[0006] This utility model provides the following technical solution: an adjustable pig farming fence, comprising a left frame and a right frame. C-shaped rods are fixedly connected inside both the left and right frames. First circular grooves are formed at the top and bottom of each C-shaped rod, and movable rods are installed inside the first circular grooves. The inner ends of the two upper movable rods are fixedly connected to a first central block, and the inner ends of the two lower movable rods are fixedly connected to a second central block. A transmission rod is rotatably connected inside the first central block, and a winch is fixedly connected to the top of the transmission rod. A support rod is fixedly connected to the top of the second central block, and a central frame is fixedly connected to the top of the support rod. The bottom end of the transmission rod... The transmission rod is rotatably connected to the top of the central frame. A first bevel gear is fixedly connected to the lower surface of the transmission rod. A transverse rod is fixedly connected to the center of the inner side of the C-shaped rod. A second circular groove is opened on the inner side of the transverse rod. A screw block located inside the second circular groove is fixedly connected to the inner side of both transverse rods. A screw rod is threaded into the internal part of the screw block. The two screw rods are arranged in opposite directions. The outer end of the screw rod is slidably connected to the inner wall of the second circular groove. The inner ends of the two screw rods are fixedly connected. A second bevel gear is fixedly connected to the inner side of the screw rod surface. The surface of the first bevel gear meshes with the surface of the second bevel gear. A positioning mechanism is provided on the lower back of both the left and right frames.
[0007] The beneficial effects of this utility model are as follows:
[0008] 1. This utility model uses multiple fences connected end-to-end to enclose a pig herd. A positioning mechanism extends to contact the ground, preventing the fences from sliding. When the enclosure area needs adjustment, the positioning mechanism retracts, the rollers contact the ground, and then the winch rotates, driving the transmission rod to rotate. The rotation of the transmission rod drives the first bevel gear to rotate, which in turn drives the second bevel gear to rotate. The rotation of the second bevel gear drives two opposing screws to rotate simultaneously. When the screws rotate, the screw blocks move outward, pushing the transverse rod outward. The moving rod slides inside the first circular groove, supporting the upper and lower sides of the C-shaped rod. When the transverse rod moves outward, it pushes the C-shaped rod and the two frames outward, thus moving the left and right frames away from each other, increasing the enclosure area. Conversely, moving the two frames closer together reduces the enclosure area. This achieves the goal of easily adjusting the enclosure area according to the size of the pig herd by setting up a movable fence mechanism, thereby reducing breeding costs.
[0009] 2. This utility model uses a horizontal plate, an electric telescopic rod, and a friction pad to be set up in a corresponding manner. When it is necessary to fix the fence, the electric telescopic rod is activated, which drives the friction pad to move downward. The friction pad contacts the ground and positions the fence to prevent it from sliding to the left or right. Conversely, the friction pad can be retracted to allow the fence to slide, making it easy to adjust. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model.
[0011] Figure 2 This is a schematic diagram of the rear view structure of this utility model.
[0012] Figure 3 This is a top view of the structure of this utility model.
[0013] Figure 4 This is a cross-sectional structural diagram of the present invention.
[0014] Figure 5 This utility model Figure 2 A magnified structural diagram of A in the middle.
[0015] Figure 6 This utility model Figure 4 A magnified structural diagram of B in the diagram. Detailed Implementation
[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0017] like Figures 1 to 6As shown, the adjustable pig farming fence of this embodiment includes a left frame 1 and a right frame 2. C-shaped rods 3 are fixedly connected inside both the left frame 1 and the right frame 2. First circular grooves are formed at the top and bottom of the C-shaped rods 3, and movable rods 4 are installed inside the first circular grooves. First center blocks 5 are fixedly connected to the inner ends of the two upper movable rods 4, and second center blocks 6 are fixedly connected to the inner ends of the two lower movable rods 4. A transmission rod 7 is rotatably connected inside the first center block 5. A winch 8 is fixedly connected to the top of the transmission rod 7. A support rod 9 is fixedly connected to the top of the second center block 6. A center frame 10 is fixedly connected to the top of the support rod 9. The bottom end of the transmission rod 7 is rotatably connected to the top of the center frame 10. A first bevel gear 11 is fixedly connected to the lower surface of the transmission rod 7. A transverse rod 12 is fixedly connected to the center of the inner side of the C-shaped rod 3. A second circular groove is formed on the inner side of the transverse rod 12, and the two transverse rods 1... Both sides of frame 2 are fixedly connected to screw blocks 13 located inside the second circular groove. The screw blocks 13 are internally threaded with screw rods 14, and the two screw rods 14 are arranged in opposite directions. The outer ends of the screw rods 14 are slidably connected to the inner wall of the second circular groove, and the inner ends of the two screw rods 14 are fixedly connected. The inner side of the surface of the screw rods 14 is fixedly connected to a second bevel gear 15. The surface of the first bevel gear 11 meshes with the surface of the second bevel gear 15. Positioning mechanisms 16 are provided on the lower back of both the left frame 1 and the right frame 2. A stretchable protective net (not shown) is fixedly connected to the inner back of both the left frame 1 and the right frame 2. When the left frame 1 and the right frame 2 are adjusted, the gap between the left frame 1 and the right frame 2 is protected by the protective net. The surfaces of the first bevel gear 11 and the second bevel gear 15 are provided with protective shells (not shown) to protect the first bevel gear 11 and the second bevel gear 15 and prevent foreign objects from adhering and affecting the meshing.
[0018] refer to Figure 5 The positioning mechanism 16 includes a horizontal plate 17 fixedly connected to the lower back of the left frame 1 and the right frame 2. Electric telescopic rods 18 are fixedly connected to the left and right sides of the bottom of the horizontal plate 17. A friction pad 19 is fixedly connected to the output end of the electric telescopic rod 18.
[0019] In this embodiment, the horizontal plate 17, the electric telescopic rod 18, and the friction pad 19 are set up in a corresponding and coordinated manner. When it is necessary to fix the fence, the electric telescopic rod 18 is activated, which drives the friction pad 19 to move downward. The friction pad 19 contacts the ground and positions the fence to prevent it from sliding to the left or right. Conversely, the friction pad 19 can be retracted to allow the fence to slide and make it easy to adjust.
[0020] refer to Figure 4 The outer end of the moving rod 4 is fixedly connected to a first limiting piece 20, the surface of the first limiting piece 20 is slidably connected to the inner wall of the first circular groove, and the outer end of the screw 14 is fixedly connected to a second limiting piece 21, the surface of the second limiting piece 21 is slidably connected to the inner wall of the second circular groove.
[0021] In this embodiment, by setting a first limiting piece 20, when the moving rod 4 moves inside the first circular groove, the first limiting piece 20 slides inside it, which has the effect of limiting and reinforcing the moving rod 4, and prevents the moving rod 4 from falling out of the first circular groove and affecting its use. By setting a second limiting piece 21, the screw 14 is limited, which prevents the screw 14 from falling out of the second circular groove and affecting its use.
[0022] refer to Figure 1 The bottom of both the left frame 1 and the right frame 2 are fixedly connected with a number of evenly distributed rollers 22, and the number of rollers 22 are distributed horizontally.
[0023] In this embodiment, by setting up rollers 22, when the positioning mechanism 16 is retracted, the rollers 22 contact the ground. Since the rollers 22 are set horizontally, the left frame 1 and the right frame 2 can slide horizontally on the ground, reducing friction with the ground and facilitating the movement of the left frame 1 and the right frame 2 during adjustment.
[0024] refer to Figure 1 A reinforcing rod 23 is fixedly connected to both the left and right sides of the top of the horizontal rod 12. The end of the reinforcing rod 23 away from the horizontal rod 12 is fixedly connected to the inner side of the C-shaped rod 3. A wire mesh 24 is fixedly connected to the outer side of the reinforcing rod 23. The outer side of the wire mesh 24 is fixedly connected to the inner side of the C-shaped rod 3.
[0025] This embodiment improves the overall strength of the fence by setting up reinforcing bars 23, while keeping the horizontal bars 12 parallel to prevent them from tilting and affecting use. By setting up wire mesh 24, the gaps in the fence are protected to prevent piglets from escaping through the gaps.
[0026] refer to Figure 1 The left frame 1 has a retainer 25 fixedly connected to the upper and lower sides of the left side, and the right frame 2 has a plug 26 fixedly connected to the upper and lower sides of the right side, which is corresponding to and cooperates with the retainer 25.
[0027] This embodiment sets up a corresponding matching arrangement between the sleeve 25 and the plug rod 26. When multiple fences need to be connected, the plug rod 26 is inserted into the sleeve 25 for easy connection. Conversely, multiple fences can be quickly disassembled.
[0028] This invention uses multiple fences connected end-to-end to enclose a pig herd. A positioning mechanism 16 extends to contact the ground, preventing the fence from sliding. When the enclosure area needs adjustment, the positioning mechanism 16 retracts, the roller 22 contacts the ground, and then the winch 8 rotates, driving the transmission rod 7 to rotate. The rotation of the transmission rod 7 drives the first bevel gear 11 to rotate, which in turn drives the second bevel gear 15 to rotate. The rotation of the second bevel gear 15 drives two opposing screws 14 to rotate simultaneously. The rotation of the screws 14 causes the screw block 13 to move outwards, pushing the transverse rod 12 outwards. The moving rod 4 slides inside the first circular groove, supporting the upper and lower sides of the C-shaped rod 3. The outward movement of the transverse rod 12 pushes the C-shaped rod 3 and the two frames outwards, thus moving the left frame 1 and right frame 2 further apart, increasing the enclosure area. Conversely, moving them closer together reduces the enclosure area. This achieves the goal of easily adjusting the enclosure area according to the size of the pig herd by setting up a movable fence mechanism, thereby reducing breeding costs.
Claims
1. An adjustable pig farming enclosure, comprising a left frame (1) and a right frame (2), characterized in that: C-shaped rods (3) are fixedly connected inside the left frame (1) and the right frame (2). The top and bottom of the C-shaped rods (3) are provided with first circular grooves, and the first circular grooves are provided with moving rods (4). The inner ends of the two moving rods (4) located above are fixedly connected to a first center block (5), and the inner ends of the two moving rods (4) located below are fixedly connected to a second center block (6). The first center block (5) is rotatably connected to a transmission rod (7). The top of the transmission rod (7) is fixedly connected to a winch (8). The top of the second center block (6) is fixedly connected to a support rod (9). The top of the support rod (9) is fixedly connected to a center frame (10). The bottom end of the transmission rod (7) is rotatably connected to the top of the center frame (10). The lower surface of the transmission rod (7) A first bevel gear (11) is fixedly connected to the square. A transverse rod (12) is fixedly connected to the center of the inner side of the C-shaped rod (3). A second circular groove is opened on the inner side of the transverse rod (12). A screw block (13) located inside the second circular groove is fixedly connected to the inner side of both transverse rods (12). A screw rod (14) is connected to the internal thread of the screw block (13). The two screw rods (14) are arranged in opposite directions. The outer end of the screw rod (14) is slidably connected to the inner wall of the second circular groove. The inner ends of the two screw rods (14) are fixedly connected. A second bevel gear (15) is fixedly connected to the inner side of the surface of the screw rod (14). The surface of the first bevel gear (11) meshes with the surface of the second bevel gear (15). A positioning mechanism (16) is provided on the lower back of both the left frame (1) and the right frame (2).
2. The adjustable pig farming fence according to claim 1, characterized in that: The positioning mechanism (16) includes a horizontal plate (17) fixedly connected to the lower back of the left frame (1) and the right frame (2). Electric telescopic rods (18) are fixedly connected to the left and right sides of the bottom of the horizontal plate (17). A friction pad (19) is fixedly connected to the output end of the electric telescopic rod (18).
3. The adjustable pig farming fence according to claim 2, characterized in that: The outer end of the moving rod (4) is fixedly connected to a first limiting piece (20), the surface of the first limiting piece (20) is slidably connected to the inner wall of the first circular groove, and the outer end of the screw (14) is fixedly connected to a second limiting piece (21), the surface of the second limiting piece (21) is slidably connected to the inner wall of the second circular groove.
4. The adjustable pig farming fence according to claim 3, characterized in that: The bottom of the left frame (1) and the right frame (2) are fixedly connected with a number of evenly distributed rollers (22), and the number of rollers (22) are distributed horizontally.
5. The adjustable pig farming fence according to claim 4, characterized in that: Reinforcing rods (23) are fixedly connected to the top left and right sides of the horizontal rod (12). The end of the reinforcing rod (23) away from the horizontal rod (12) is fixedly connected to the inner side of the C-shaped rod (3). A wire mesh (24) is fixedly connected to the outer side of the reinforcing rod (23). The outer side of the wire mesh (24) is fixedly connected to the inner side of the C-shaped rod (3).
6. The adjustable pig farming fence according to claim 5, characterized in that: The left frame (1) has a sleeve (25) fixedly connected to the upper and lower sides on the left side, and the right frame (2) has a plug (26) fixedly connected to the upper and lower sides on the right side, which is corresponding to and cooperates with the sleeve (25).