A pig restraining stand

Abstract

The application discloses a pig fixing frame, which comprises a base, a supporting support arranged on the base, a supporting support arranged in the base, a clamping support arranged on the supporting support, a lifting motor arranged on the supporting support, an adjusting assembly arranged in the base, the adjusting assembly comprising an adjusting bracket, a guide frame and a distance adjusting mechanism, the guide frame being arranged in the adjusting bracket, the distance adjusting mechanism being slidably connected in the guide frame, the first clamping connecting rod and the second clamping connecting rod being arranged in the adjusting bracket, a supporting base arranged on the outer side of the base, and a supporting support movably connected to the supporting base, wherein the first clamping connecting rod and the second clamping connecting rod made of flexible material are arranged in the adjusting bracket, and the first guide rope and the second guide rope in the adjusting bracket are matched, so that flexible wrapping and clamping of pigs are realized, and self-adapting elastic buffering is provided in the clamping process, so that mechanical damage of pigs caused by rigid extrusion is avoided.

Description

Technical Field

[0001] This invention relates to the technical field of livestock auxiliary equipment, and in particular to a pig restraint frame. Background Technology

[0002] In the process of pig farming and veterinary diagnosis and treatment, it is often necessary to restrict the movement of pigs in order to carry out procedures such as vaccination, blood collection, physical examination, surgery or artificial insemination. Pig restraint frames, as a commonly used livestock auxiliary equipment, can effectively fix pigs, reduce the difficulty of operation, and ensure the safety of humans and animals.

[0003] Existing pig restraint frames typically employ a rigid frame structure welded from steel pipes. Pigs are clamped to the frame using clamping plates or doors, often employing rigid compression. This clamping force is difficult to control, and since pigs often struggle and exhibit stress during restraint, rigid clamping not only easily leads to skin abrasions and bone damage but also exacerbates panic and resistance, increasing the difficulty and risk of injury for operators. Furthermore, after securing the pig, it is often difficult to conveniently adjust its position and posture according to actual operational needs. Most restraint frames lack effective lifting and rotating linkage mechanisms. When it is necessary to change the pig's height or turning angle, manual unlocking and readjustment are usually required, which is time-consuming, labor-intensive, and severely impacts operational efficiency. Additionally, some existing restraint frames with adjustable functions often have complex internal transmission and clamping structures or poor guidance, making them prone to jamming or uneven clamping force during dynamic adjustments, resulting in low equipment reliability and a short service life. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is that rigid clamping structures are prone to damaging pigs and the position of the pigs is inconvenient to adjust.

[0005] The above-mentioned technical problems are solved by the following technical solution: This invention proposes a pig restraint frame, comprising: A base, on which a support bracket is provided, a support bracket is provided inside the base, a clamping bracket is provided on the support bracket, and a lifting motor is provided on the support bracket; An adjustment assembly is disposed inside the base. The adjustment assembly includes an adjustment bracket, a guide frame, and an adjustment mechanism. The guide frame is disposed inside the adjustment bracket, and the adjustment mechanism is slidably connected inside the guide frame. A first clamping link and a second clamping link are disposed inside the adjustment bracket. A top support base is disposed on the outside of the base, and a top support bracket is movably connected to the top support base.

[0006] In a preferred embodiment of the pig restraint frame of the present invention: two sets of support brackets are symmetrically arranged on the base, the guide rollers and drive gears are rotatably connected to the two sets of support brackets respectively, the guide rollers and drive gears are interconnected with the support brackets through a rotatable connecting seat, and a lower support frame is provided at the lower end of the support bracket.

[0007] In a preferred embodiment of the pig restraint frame of the present invention: an upper top frame is provided at the upper end of the supporting bracket, a clamping bracket is provided on the upper top frame, a first hinge seat is provided between the other end of the clamping bracket and the upper top frame, a clamping plate is provided on the clamping bracket, a clamping guide rod is provided between the clamping plate and the clamping bracket, and a lifting screw is rotatably connected to the output end of the lifting motor.

[0008] In a preferred embodiment of the pig restraint frame of the present invention: rotating brackets are provided at both ends of the clamping bracket, a driving rack is provided inside the rotating bracket, and a second hinge seat is provided between the two rotating brackets.

[0009] In a preferred embodiment of the pig restraint frame of the present invention: a limiting seat is provided between the guide frame and the adjusting bracket; an installation connecting plate is provided between the adjusting bracket and the adjusting mechanism; a lifting threaded sleeve is provided between the adjusting mechanism; and two guide arc surfaces are symmetrically provided on the outer side of the guide frame.

[0010] In a preferred embodiment of the pig restraint frame of the present invention: the first clamping link and the second clamping link provided in the adjusting bracket are arranged perpendicularly to each other. Both the first clamping link and the second clamping link are made of flexible material. Two sets of the first clamping link and the second clamping link are symmetrically arranged. A first guide rope is provided in the first clamping link. One end of the first guide rope is connected to the lower support frame, and the other end of the first guide rope is connected to the first clamping link.

[0011] In a preferred embodiment of the pig restraint frame of the present invention: a second guide rope is provided inside the second clamping link, a fixed seat is provided at one end of the second guide rope, a first guide roller is rotatably connected to the fixed seat, the first guide roller is connected to the fixed seat through a roller bracket, the first guide roller constrains the movement direction of the second guide rope, and a plate elastic member is provided between the roller bracket and the fixed seat.

[0012] In a preferred embodiment of the pig restraint frame of the present invention: the adjusting mechanism includes an adjusting bracket and an adjusting frame, one end of the adjusting bracket is provided with an adjusting motor, the output end of the adjusting motor is provided with an adjusting screw, and the adjusting screw is threadedly connected to the adjusting frame.

[0013] In a preferred embodiment of the pig restraint frame of the present invention: a limiting baffle is provided inside the adjusting bracket, the limiting baffle is provided with a guide hole and a screw through hole, the other end of the adjusting screw passes through the screw through hole and is connected to the adjusting bracket, the adjusting bracket is provided with an adjusting guide rod, the adjusting guide rod is symmetrically arranged about the adjusting screw, and a guide slider is provided on the outside of the adjusting bracket.

[0014] In a preferred embodiment of the pig restraint frame of the present invention: a guide groove is provided on the adjusting frame, and a second guide roller and a guide shaft are provided in the guide groove.

[0015] The beneficial effects of the present invention are as follows: by setting a first clamping link and a second clamping link made of flexible material in the adjusting bracket, and cooperating with the first guide rope and the second guide rope inside, the pig is flexibly wrapped and clamped. The second clamping link is provided with a first guide roller and a plate elastic element, which provides adaptive elastic buffering during the clamping process, avoids mechanical damage to the pig caused by rigid compression, reduces the pig's struggle and stress response, and ensures the safety of the operation process. By setting a lifting motor and lifting screw on the clamping bracket and a rotating bracket with a drive rack at both ends of the clamping bracket, the linkage between the lifting and rotating structure of the restraint frame is realized. After the pig is fixed, its height and turning angle can be quickly and conveniently adjusted in multiple dimensions according to the treatment site and the pig's body size, saving time and effort and improving the efficiency and convenience of operation. By setting up an adjustment mechanism, along with multiple guiding structures such as limit baffles, guide holes, adjustment guide rods, guide grooves, and second guide rollers, the straightness and smoothness of the adjustment frame during movement are ensured. When dynamically adjusting the clamping position and spacing, mechanical jamming is effectively avoided, ensuring uniform distribution of clamping force and improving the reliability and service life of the equipment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Wherein: Figure 1 A schematic diagram of the overall structure of the present invention is shown. Figure 1 ; Figure 2 A schematic diagram of the overall structure of the present invention is shown. Figure 2 ; Figure 3 A schematic diagram of the flipped state structure of the present invention is shown; Figure 4 A schematic diagram of the guide frame of the present invention in the raised state is shown; Figure 5A schematic diagram of the overall structure of the adjustment component of the present invention is shown. Figure 1 ; Figure 6 A schematic diagram of the overall structure of the second clamping link of the present invention is shown; Figure 7 A schematic diagram of the overall structure of the adjustment component of the present invention is shown. Figure 2 ; Figure 8 A schematic diagram of the overall structure of the adjusting mechanism of the present invention is shown; Figure 9 An enlarged structural schematic diagram of point A in this invention is shown; Figure 10 An enlarged structural schematic diagram of point B of the present invention is shown. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0018] The terminology used in this invention is that which is currently widely used in the art in consideration of the function of the invention; however, these terms may vary according to the intent of those skilled in the art, precedent, or new technology in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the invention. Therefore, the terms used in this specification should not be construed as simple names, but rather based on their meanings and the overall description of the invention.

[0019] refer to Figure 1 and Figure 2The base 100 has two sets of support brackets 101 symmetrically arranged on it. One set of support brackets 101 is rotatably connected to a guide roller 101a, and the other set of support brackets 101 is rotatably connected to a drive gear 101b. The drive gear 101b has a rotation slot 101c. The guide roller 101a and the drive gear 101b are connected to the support brackets 101 via a rotation connecting seat 102. In existing livestock restraint equipment, the main frame of the restraint frame is usually made of square or round tubes welded together into a rigid, non-removable whole. Although this structure is low in manufacturing cost, it is difficult to support the pig's posture and rotation after restraint. When lateral or abdominal examination of the pig is required, operators often rely on manual pulling or turning, which is time-consuming, labor-intensive, and prone to safety accidents. This invention improves this fixed frame design by rotatably setting the guide roller 101a and the drive gear 101b on the support brackets 101, facilitating subsequent overall rotation. The mechanism provides a stable, low-friction circular track and a reliable power transmission base. A support bracket 103 is installed within the base 100. A fixing hole 103a is formed on the outer wall of the support bracket 103. An upper top frame 104 is installed at the upper end of the support bracket 103. A clamping bracket 105 is installed on the upper top frame 104. A locking bolt 105a is installed at one end of the clamping bracket 105, and a first hinge seat 105 is provided between the other end of the clamping bracket 105 and the upper top frame 104. d. A clamping plate 105b is provided on the clamping bracket 105. Traditional clamping gates are mostly one-way opening and closing insert structures, which lack guidance. When the pig struggles, it is easy to get stuck in the guide groove. In this invention, two symmetrical clamping guide rods 105c are provided between the clamping plate 105b and the clamping bracket 105. Through the constraint effect of the double rod guidance, the clamping plate 105b is better ensured to maintain parallel movement during the clamping process, reducing mechanical jamming caused by unilateral force deviation. refer to Figure 3 and Figure 4A lifting motor 106 is installed on the upper frame 104, and a lifting screw 106a is rotatably connected to the output end of the lifting motor 106. In the prior art, the height of the restraint frame is often fixed, or can only be adjusted by pulling out the pin, manually lifting it, and then re-inserting it. This adjustment method is not only cumbersome and physically demanding, but also poses safety hazards such as pinching hands when manually lifting the pig while it is in a restrained state. At the same time, the fixed height is difficult to adapt to the habits of operators of different heights, and prolonged bending or tiptoeing work greatly affects the efficiency of diagnosis and treatment. This invention introduces an electric lifting structure of lifting motor 106 and lifting screw 106a, so that the operator only needs to control the lifting mechanism. The control switch allows the pig to be adjusted to a suitable operating height while it remains fixed, reducing labor intensity and improving safety. The lower end of the support bracket 103 is provided with a lower support frame 109, which has a rotating hole 109a. The top support base 300 is located on the outside of the base 100, and the top support bracket 301 is movably connected to the top support base 300. Existing base support structures are mostly of fixed length, which is difficult to adapt to the abdominal support needs of pigs of different body lengths. The top support bracket 301 in this invention can be moved and adjusted on the top support base 300, thereby providing adaptive angle abdominal support for pigs of different body sizes and reducing the pressure on internal organs caused by the pig being suspended. refer to Figure 5 and Figure 7 An adjustment assembly 200 is disposed inside the base 100. The adjustment assembly 200 includes an adjustment bracket 201, a limiting seat 202, and a guide frame 203. The guide frame 203 is disposed inside the adjustment bracket 201, and the limiting seat 202 is disposed between the guide frame 203 and the adjustment bracket 201. An adjustment mechanism 204 is slidably connected inside the guide frame 203. A mounting connecting plate 201a is disposed between the adjustment bracket 201 and the adjustment mechanism 204. A lifting threaded sleeve 205 is disposed between the adjustment mechanisms 204. Two guide arc surfaces 206 are symmetrically arranged on the outer side of the guide frame 203. A first clamping link 207 and a second clamping link 208 are arranged perpendicularly to each other inside the adjustment bracket 201. Both the first clamping link 207 and the second clamping link 208 are made of flexible materials. Two sets of the first clamping link 207 and the second clamping link 208 are symmetrically arranged. In view of the defects of the existing technology that uses rigid steel plates or steel pipes to directly push the pig's body, that is, when the pig struggles under stress, it collides with the rigid wall, which can easily lead to skin abrasions, subcutaneous bleeding or even fractures. The present invention uses flexible materials to make the link, forming a flexible wrapping structure similar to a hammock. The first clamping link 207 is provided with a first guide rope 207a. One end of the first guide rope 207a is connected to the lower support frame 109, and the other end of the first guide rope 207a is connected to the first clamping link 207. Through the traction linkage of the guide rope, the flexible link can tighten according to the contour of the pig's body surface. refer to Figure 6A second guide rope 208e is provided inside the second clamping link 208. A fixed seat 208c is provided at one end of the second guide rope 208e. A first guide roller 208b is rotatably connected to the fixed seat 208c. The first guide roller 208b is connected to the fixed seat 208c through a roller bracket 208a. The first guide roller 208b constrains the movement direction of the second guide rope 208e. A plate-type elastic element 208d is provided between the roller bracket 208a and the fixed seat 208c. The second clamping link 208, the roller bracket 208a, and the plate-type elastic element 208d are positioned relative to the fixed seat. There are two symmetrically arranged 208c. In traditional flexible clamping, due to the lack of a mechanical buffer mechanism, once the pig struggles suddenly, the force on the flexible belt increases sharply, which may still cause strangulation injury to the pig's chest cavity. This invention embeds a plate elastic element 208d in the clamping transmission chain. When the clamping force exceeds the preset threshold or the pig struggles violently, the plate elastic element 208d is subjected to force and undergoes bending deformation, which drives the roller bracket 208a to produce a small displacement, thereby providing an adaptive elastic yield space for the second guide rope 208e, converting the instantaneous rigid impact force into elastic energy absorption, and improving the safety of clamping. refer to Figure 8The adjusting mechanism 204 includes an adjusting bracket 204a and an adjusting frame 204e. A limit baffle 204b is provided inside the adjusting bracket 204a. The limit baffle 204b has two guide holes 204c and a screw through hole 204d. The guide holes 204c are symmetrically arranged about the screw through hole 204d. An adjusting motor 209 is provided at one end of the adjusting bracket 204a. An adjusting screw 209a is provided at the output end of the adjusting motor 209. The other end of the adjusting screw 209a passes through the screw through hole 204d and connects to the adjusting bracket 204a for adjusting the pitch. The screw 209a is threadedly connected to the adjusting bracket 204e. Two adjusting guide rods 204g are provided on the adjusting bracket 204e, symmetrically arranged about the adjusting screw 209a. A guide groove 204f is provided on the adjusting bracket 204e, and a second guide roller 210 and a guide shaft 211 are provided within the guide groove 204f. A roller fixing sleeve 212 is provided between the second guide roller 210 and the guide groove 204f. A guide slider 204h is provided on the outer side of the adjusting bracket 204a. Some existing Baoding models with electric adjusting function... The original design of the clamping frame was relatively simple, typically relying on a single lead screw to drive the clamping frame. In actual use, due to the large weight of the pig and the shifting of its center of gravity with its struggle, the single lead screw was prone to flexural deformation under long-stroke eccentric loads, leading to seizing between the lead screw and the nut, motor overload, and potential equipment damage. This invention addresses this by incorporating two symmetrical adjusting guide rods 204g about the adjusting screw 209a on the adjusting frame 204e, which, together with the guide hole 204c on the limiting baffle 204b, form a double-rod anti-eccentric load guiding structure. The adjusting screw 209a mainly bears axial tensile and compressive forces and is less subjected to bending moments. Furthermore, the adjusting bracket 204e is provided with a guide groove 204f, in which a second guide roller 210 and a guide shaft 211 are provided. A roller fixing sleeve 212 is provided between the second guide roller 210 and the guide groove 204f. A guide slider 204h is provided on the outside of the adjusting bracket 204a. By replacing the traditional sliding friction with the rolling friction between the guide groove and the roller, a multi-precision guiding system is formed, which effectively reduces the mechanical jamming phenomenon during dynamic adjustment. refer to Figure 9 and Figure 10The clamping bracket 105 has rotating brackets 107 at both ends. Each rotating bracket 107 has a storage and fixing component 107a, a positioning hole 107b, and a drive rack 107c inside. Two identical rotating brackets 107 are provided, and a second hinge seat 107d is located between them. A rotating handle 108 is detachably connected to the rotating connecting seat 102. Traditional turning operations often rely on manual labor to tie up the pigs before turning them over, or the use of a simple turning bed. Its flipping angle is difficult to control precisely and the positioning is not stable enough. After the rotating bracket 107 is unfolded, it forms a ring. It is fixed by the fixing pin and the positioning hole 107b, which restricts the pig in all directions within the ring. After the fixing is completed, the rotating handle 108 drives the drive gear 101b to rotate. The drive rack 107c that meshes with it drives the entire bracket to rotate. The gear and rack transmission has high precision and load-bearing capacity, making the flipping process relatively smooth and controllable. It can stop at multiple angles, which meets some complex body position requirements.

[0020] In use, the pig is driven onto the support bracket 103 of the base 100. Based on the pig's size, the adjusting motor 209 is activated to drive the adjusting screw 209a to rotate. Under the constraint of multiple guide rods and guide rollers, the adjusting frame 204e moves smoothly along a straight line, thereby causing the first clamping link 207 and the second clamping link 208 within the adjusting bracket 201 to move closer to the pig. At this time, the first guide rope 207a and the second guide rope 208e are tightened, and the flexible link forms an adaptive wrap around the pig. If the pig struggles or resists, the plate-type elastic element 208d within the second clamping link 208 undergoes elastic deformation, absorbing the impact force and effectively preventing injury to the pig. After clamping, the lifting motor 106 can be started according to the operational needs. The lifting screw 106a will raise the clamping bracket 105 and the pig to a suitable operating height, reducing the need for the operator to bend over. When it is necessary to turn the pig over, the rotating brackets 107 at both ends are unfolded and closed to form a closed ring. The fixing pin is inserted into the positioning hole 107b and locked. Then, the rotating handle 108 is inserted into the rotating slot 101c. The handle is turned to rotate the drive gear 101b. The drive gear 101b drives the drive rack 107c and the entire rotating bracket 107 to rotate in a relatively stable circumferential direction along the guide roller 101a, thereby realizing the position adjustment of the pig in multiple postures. The adjustment bracket 201 is supported and fixed by the cooperation of the top support base 300 and the top support bracket 301. After the operation is completed, the above steps are reversed to safely release the pig.

[0021] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A pig restraint frame, characterized in that: include: A base, on which a support bracket is provided, a support bracket is provided inside the base, a clamping bracket is provided on the support bracket, and a lifting motor is provided on the support bracket; An adjustment assembly is disposed inside the base. The adjustment assembly includes an adjustment bracket, a guide frame, and an adjustment mechanism. The guide frame is disposed inside the adjustment bracket, and the adjustment mechanism is slidably connected inside the guide frame. A first clamping link and a second clamping link are disposed inside the adjustment bracket. A top support base is disposed on the outside of the base, and a top support bracket is movably connected to the top support base.

2. The pig restraint frame according to claim 1, characterized in that: Two sets of support brackets are symmetrically arranged on the base. The guide rollers and drive gears are rotatably connected to the two sets of support brackets respectively. The guide rollers and drive gears are connected to the support brackets through a rotatable connecting seat. A lower support frame is provided at the lower end of the support bracket.

3. The pig restraint frame according to claim 2, characterized in that: The upper end of the support bracket is provided with an upper top frame, the upper top frame is provided with a clamping bracket, the other end of the clamping bracket is provided with a first hinge seat between it and the upper top frame, the clamping bracket is provided with a clamping plate, the clamping plate and the clamping bracket are provided with a clamping guide rod, and the output end of the lifting motor is rotatably connected to a lifting screw.

4. The pig restraint frame according to claim 3, characterized in that: The clamping bracket has rotating brackets at both ends, and a drive rack is provided inside the rotating bracket. A second hinge seat is provided between the two rotating brackets.

5. The pig restraint frame according to claim 1, characterized in that: A limiting seat is provided between the guide frame and the adjusting bracket, an installation connecting plate is provided between the adjusting bracket and the adjusting mechanism, a lifting threaded sleeve is provided between the adjusting mechanism, and two guide arc surfaces are symmetrically arranged on the outer side of the guide frame.

6. The pig restraint frame according to claim 5, characterized in that: The first clamping rod and the second clamping rod are arranged perpendicularly to each other in the adjusting bracket. Both the first clamping rod and the second clamping rod are made of flexible material. Two sets of the first clamping rod and the second clamping rod are symmetrically arranged. A first guide rope is provided in the first clamping rod. One end of the first guide rope is connected to the lower support frame, and the other end of the first guide rope is connected to the first clamping rod.

7. The pig restraint frame according to claim 6, characterized in that: The second clamping link is provided with a second guide rope, and a fixed seat is provided at one end of the second guide rope. A first guide roller is rotatably connected to the fixed seat. The first guide roller is connected to the fixed seat through a roller bracket. The first guide roller constrains the movement direction of the second guide rope. A plate elastic element is provided between the roller bracket and the fixed seat.

8. The pig restraint frame according to claim 1, characterized in that: The adjusting mechanism includes an adjusting bracket and an adjusting frame. An adjusting motor is provided at one end of the adjusting bracket, and an adjusting screw is provided at the output end of the adjusting motor. The adjusting screw is threadedly connected to the adjusting frame.

9. The pig restraint frame according to claim 8, characterized in that: The adjustable bracket is provided with a limit baffle, which has a guide hole and a screw through hole. The other end of the adjustable screw passes through the screw through hole and is connected to the adjustable bracket. The adjustable bracket is provided with an adjustable guide rod, which is symmetrically arranged about the adjustable screw. A guide slider is provided on the outside of the adjustable bracket.

10. The pig restraint frame according to claim 9, characterized in that: The adjusting frame is provided with a guide groove, and a second guide roller and a guide shaft are provided in the guide groove.

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