A fixing device for castration of sow

Abstract

The invention discloses a fixing device for castration of sows, comprising a base, a head fixing component, a left hind limb fixing component and a back baffle; the head fixing component comprises a C-shaped arch frame, a fixing plate and a fixing screw; the right side of the C-shaped arch frame is hinged in a right fixing seat, a screw sleeve is provided through the fixing plate, the fixing screw is threadedly connected to the screw sleeve, and the fixing screw is matched and connected in the connecting screw sleeve; the back baffle is fixed to the middle part of the right side of the base; the left hind limb fixing component comprises a sliding rod, a limiting rod, an adjusting plate and a C-shaped limiting frame; a C-shaped limiting frame is provided on the right side of the limiting rod, the left end of the adjusting plate is sleeved on the limiting rod, a lap groove corresponding to the sliding rod is provided in the middle part of the adjusting plate, and a C-shaped placement groove corresponding to the C-shaped limiting frame is provided on the right side of the adjusting plate; the invention fixes the head, legs and back of the sow on one device at the same time, so that the pig is safely and conveniently fixed, so that the pig is more stable during dynamic operation and more accurate during ovary removal.

Description

Technical Field

[0001] The invention belongs to the technical field of veterinary treatment devices, and in particular relates to a fixing device for castration of sows. Background Art

[0002] Sow castration is most suitable for gilts aged 1 to 2 months or weighing 5 to 15 kg. It is the most common, widespread and easily accepted old technology. It usually uses surgical methods to remove the sow's ovaries, causing them to lose reproductive development and reproductive behavior, thereby improving their production performance and livestock product quality and increasing the economic benefits of pig farming.

[0003] The existing method of castration of sows requires the operator to grasp the left hind leg of the gilt with his left hand, lift it upside down, gently place the pig's head to the right, place the pig's neck in front of the right toe, let the pig lie on the right side of the ground, straighten the pig's left and right legs backwards, step on the right calf with the left foot, and step on the neck with the right foot to perform the castration operation.

[0004] In the existing method of gilt castration, the piglets must be effectively fixed during the operation to avoid affecting the smooth progress of the operation. Since it is very difficult to secure the sow, it is difficult for one person to complete the sow castration work with the current castration method. Usually, an assistant is needed to assist in fixing the sow after a period of time. Therefore, the existing castration method wastes manpower and is inefficient. Moreover, when the sow is pressed on the ground, its limbs have great resistance and are difficult to fix. At present, there is a lack of a fixing device for sow castration in veterinary treatment equipment. Summary of the invention

[0005] In view of the defects and problems existing in the existing equipment, the present invention provides a sow castration fixing device, which effectively solves the problems existing in the existing equipment that the sow is difficult to secure during the castration process, the limbs have strong resistance, it is time-consuming and labor-intensive, and the work efficiency is low.

[0006] The solution adopted by the present invention to solve the technical problem is: a sow castration fixing device, comprising a base, a head fixing assembly, a left hind limb fixing assembly and a back baffle; the head fixing assembly comprises a left fixing seat, a right fixing seat, a C-shaped arch frame, a fixing plate and a fixing screw; the left fixing seat and the right fixing seat are respectively fixed to the left and right sides of the base, the right side of the C-shaped arch frame is hinged in the right fixing seat, a fixing plate is arranged on the left side, a screw sleeve is arranged through the fixing plate, the fixing screw is threadedly connected to the screw sleeve, and the fixing screw is screwed on the right fixing seat. A connecting screw sleeve is provided on the fixed seat, and the fixing screw is matched and connected in the connecting screw sleeve; the back baffle is fixed to the middle part of the right side of the base; the left hind limb fixing assembly includes a sliding rod, a limit rod, an adjustment plate and a C-shaped limit frame; the limit rod and the sliding rod are arranged in parallel on the base, and a C-shaped limit frame is arranged on the right side of the limit rod, the left end of the adjustment plate is sleeved on the sliding rod and can slide along the sliding rod, the middle part of the adjustment plate is provided with a groove corresponding to the limit rod, and the right side thereof is provided with a C-shaped placement groove corresponding to the C-shaped limit frame.

[0007] Furthermore, a supporting leg is provided at the bottom of the base, and the supporting leg is a U-shaped structure with an opening facing inward.

[0008] Furthermore, the groove is an arc-shaped structure that matches the limiting rod, and a sliding sleeve is provided at the right end of the adjustment plate, and the sliding sleeve is sleeved on the sliding rod.

[0009] Furthermore, the front ends of the sliding rod and the limiting rod are fixed to the base through a fixing column, the fixing column is located at the front end of the limiting rod, and a protective sleeve is sleeved on the fixing column, and a protective pad is arranged on the inner side of the back baffle.

[0010] Furthermore, the back baffle is a fence-like structure, and a rotatable flap is arranged on the upper part thereof.

[0011] Furthermore, the fixed plate and the left fixed seat are both provided with an articulated seat in the same plane, the screw sleeve and the connecting screw sleeve are both provided on the articulated seat, the fixed screw is sleeved in the screw sleeve, an adjusting hand wheel is provided at its upper end, and its lower end is threadedly connected in the connecting screw sleeve.

[0012] Furthermore, a positioning plate opening outward is provided on the outer side of the connecting screw sleeve, and the connecting screw sleeve is arranged on the hinge seat through the torsion shaft.

[0013] Furthermore, the cross section of the C-shaped placement groove is a structure that gradually inclines from the inside to the outside.

[0014] Furthermore, the C-shaped arch frame includes two C-shaped arch plates arranged at intervals, the right ends of the two C-shaped arch plates are respectively hinged on the right fixed seat, and the left ends thereof are fixedly connected together by a fixed plate.

[0015] The beneficial effects of the present invention: In view of the existing reliance on manpower to restrain sows, the fixing method is cumbersome and the restraint is difficult. Based on this, the present invention provides a device specifically for restraining sows, and specifically provides a base, which is a planar structure, serving as a castration platform for the sow, and a head fixing component, a back baffle and a left hind limb fixing component are correspondingly arranged at the upper, middle and lower parts of the base; and the pig's head is correspondingly placed and fixed on the head fixing component, the back is against the back baffle, and the pig's left hind limb is fixed in the left hind limb fixing component.

[0016] In specific implementation, the head fixing assembly includes a left fixing seat, a right fixing seat, a C-shaped bow frame, a fixing plate and a fixing screw; one end of the C-shaped bow frame is hinged to the right fixing seat, and the other end is an openable and closable structure, and a fixing plate corresponding to the left fixing seat is arranged on the left side of the C-shaped bow frame, and a screw sleeve is arranged on the fixing plate, and a fixing screw is connected inside the screw sleeve, and the fixing screw is connected inside the connecting screw sleeve, so that the fixing plate and the left fixing seat are connected together by the fixing screw. In this structure, the C-shaped bow frame is used to clamp the pig's head, and the pig's right forelimbs and left forelimbs are respectively placed crosswise on the front and rear sides of the fixing screw to achieve the fixation of the pig's head and forelimbs.

[0017] At the same time, in order to adapt to pigs of different sizes, the screw sleeve and the connecting screw are hinged on the fixing plate and the left fixing seat, so that the size of the fixing area of ​​the C-shaped bow frame and the base can be adjusted according to different sizes, and the application range is wide.

[0018] The pig's back rests against the back baffle, and during implementation, a flap can be arranged on the rear side of the back baffle, and the flap can limit the pig's body position from the top.

[0019] As for the pig's hind limb part, the present invention only performs restraint and limitation on the left hind limb, and provides a sliding rod and a limiting rod, which are respectively used to guide and support the adjustment plate, so that the adjustment plate can slide along the sliding rod and be supported on the limiting rod, and correspondingly offset C-shaped limiting frames and C-shaped placement grooves are provided at the inner end of the limiting rod and the outer end of the adjustment plate, and the pig's left hind limb is placed therein, and the limiting interval formed by the C-shaped limiting frame and the C-shaped placement groove can be adjusted according to the body shape of the pig; the pig's right hind limb part is fixed by the surgeon's hands, and the operation is performed at the same time, which can be operated by one person and is easy to use.

[0020] Therefore, the present invention can fix the sow's head, legs and back on one device at the same time, so that the pig can be fixed safely and conveniently, making it more stable during dynamic operation and more accurate during ovary removal, thereby solving the problems of the existing use of multiple people to assist in manually catching pigs, wasting manpower, posing potential safety hazards to personnel, and causing serious injuries to pigs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention.

[0022] Figure 2 for Figure 1 Left view of .

[0023] Figure 3 for Figure 1 Top view of the .

[0024] Figure 4 for Figure 1 Front view of .

[0025] Figure 5 for Figure 1 Another perspective structural diagram of .

[0026] Figure 6 for Figure 1 Right view of .

[0027] Figure 7 It is a schematic diagram of the structure of connecting the screw sleeves.

[0028] Figure 8 It is a schematic diagram of the use process of the present invention.

[0029] Fig. 9 It is a schematic diagram of the structure of the back baffle.

[0030] Fig.10 for Fig. 9 Side view of.

[0031] The numbers in the figure are: 1 is the base, 2 is the right fixed seat, 3 is the left fixed seat, 4 is the C-shaped bow frame, 5 is the fixed plate, 6 is the screw sleeve, 7 is the fixed screw, 8 is the adjusting hand wheel, 9 is the connecting screw sleeve, 10 is the back baffle, 11 is the support leg, 12 is the limit rod, 13 is the sliding rod, 14 is the C-shaped limit frame, 15 is the adjustment plate, 16 is the slot, 17 is the C-shaped placement slot, 18 is the hinge seat, 19 is the hinge shaft, 20 is the positioning plate, 21 is the protective pad, 22 is the lifting sleeve, 23 is the flap, and 24 is the telescopic rod. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0033] Embodiment 1: This embodiment aims to provide a sow castration fixing device, which is mainly used for castration of sows in animal husbandry. The existing castration method uses multiple people to assist in manually catching pigs, which consumes manpower, poses a safety hazard to personnel, causes pig stress, and causes injuries to pigs and personnel. Based on this, this embodiment provides a sow castration fixing device according to the operator's usage habits.

[0034] like Figure 1As shown in the figure, a sow castration fixing device includes a base 1, a head fixing component, a left hind limb fixing component and a back baffle 10; specifically, the present embodiment provides a base 1, which is a planar structure and serves as a sow castration platform, and a head fixing component, a back baffle 10 and a left hind limb fixing component are correspondingly provided at the upper, middle and lower parts of the base 1; and the pig's head is correspondingly placed and fixed on the head fixing component, the back is against the back baffle, and the pig's left hind limb is fixed in the left hind limb fixing component.

[0035] During specific implementation, a support leg 11 can be set at the bottom of the base. The support leg 11 is a U-shaped structure with the opening inward, so that the base can be placed flat on the ground and is higher than the base 1 for easy transportation. The overall structure is higher than the ground to prevent the pig from contacting the ground, reduce stress response, and improve the restraint effect. At the same time, a drainage hole can be set on the base to discharge the liquid produced during the operation of the pig from the base, and a collection bag is set at the bottom of the base accordingly.

[0036] In the specific structure, the head fixing assembly includes a left fixing seat 3, a right fixing seat 2, a C-shaped bow frame 4, a fixing plate 5 and a fixing screw 7; wherein the left fixing seat 3 and the right fixing seat 2 are respectively fixed on the left and right sides of the base 1, and an embedding groove is set on the right fixing seat 2. The right side of the C-shaped bow frame 4 is hinged in the embedding groove of the right fixing seat 2, so that the C-shaped bow frame 4 can be flipped around the embedding groove. A fixing plate 5 is set on the left side of the C-shaped bow frame 4. The fixing plate 5 is a flat plate structure. A screw sleeve 6 is penetrated in the middle of the fixing plate 5. The fixing screw 7 is threadedly connected to the screw sleeve 6. A connecting screw sleeve 9 is set on the left fixing seat 3, and the fixing screw 7 is matched and connected in the connecting screw sleeve 9.

[0037] During implementation, one end of the C-shaped bow frame 4 in this embodiment is hinged to the right fixed seat 2, and the other end is an openable structure, and a fixing plate 5 corresponding to the left fixed seat 3 is arranged on the left side of the C-shaped bow frame 4, and a screw sleeve 6 is arranged on the fixing plate 5, and a fixing screw 7 is connected to the screw sleeve 6, and the fixing screw 7 is connected to the connecting screw sleeve 9, so that the fixing plate and the left fixed seat are connected together by the fixing screw. In this structure, the C-shaped bow frame is used to clamp the pig's head, and the pig's right forelimbs and left forelimbs are cross-placed on the front and rear sides of the fixing screw respectively, so as to secure the pig's head and forelimbs.

[0038] The back baffle 10 is fixed to the middle right side of the base and protrudes out of the base 1 to form a barrier on the right side of the base 1; during implementation, the back baffle is a fence-like structure, and a rotatable flap 23 is arranged on its upper part. The flap 23 can limit the body position of the pig from the upper part, and the back baffle 10 is provided with a vertical vertical rod, and the vertical rods on both sides are provided with a lifting sleeve 22, which can slide along the vertical rod and be fixed by the side top screw, and the flap 23 is hinged at the lower part of the lifting sleeve 22, and the upper part of the lifting sleeve 22 is hinged with a telescopic rod 24, and a hook is arranged on the flap 23, and a hanging ring is arranged at the end of the telescopic rod 24, which can be hung at the hook to fix the position of the flap, and then the abdominal position of the pig is secured from the upper part.

[0039] The left hind limb fixing assembly includes a sliding rod 13, a limiting rod 12, an adjusting plate 15 and a C-shaped limiting frame 14; the limiting rod 12 and the sliding rod 13 are arranged in parallel on the base 1, the sliding rod 13 is located on the left side, the limiting rod 12 is located on the right side, and a C-shaped limiting frame 14 with an opening downward is fixedly arranged on the right side of the limiting rod 12, the left end of the adjusting plate 15 is sleeved on the sliding rod 13 and can slide along the sliding rod 13, the middle part of the adjusting plate 15 is provided with a mounting groove 16 corresponding to the limiting rod, and the right side thereof is provided with a C-shaped placement groove 17 corresponding to the C-shaped limiting frame 14.

[0040] In this embodiment, the left hind limb is secured and limited, and a sliding rod 13 and a limiting rod 12 are provided, which are respectively used to guide and support the adjustment plate 15, so that the adjustment plate 15 can slide along the sliding rod 13 and be supported on the limiting rod 12, and correspondingly offset C-shaped limiting frames and C-shaped placement grooves are provided at the inner end of the limiting rod 12 and the outer end of the adjustment plate, and the left hind limb of the pig is placed therein, and the limiting interval formed by the C-shaped limiting frame and the C-shaped placement groove can be adjusted according to the body shape of the pig; the right hind limb of the pig is fixed by the surgeon's hands, and the operation is performed at the same time, which can be operated by one person and is easy to use.

[0041] When in use, open the C-shaped arch frame, then fix the pig's head on it, and move the left and right front legs in the same direction. Figure 8The left hind leg is fixed between the C-shaped limit frame and the C-shaped placement groove, the left hip tubercle (outer angle of the iliac wing) is supported by the index finger of the left hand, and the middle finger, ring finger and little finger are pressed in sequence with the index finger as the standard, and the thumb is pressed down in a vertical direction to the part supported by the middle part, so that the thumb and the middle finger are as close as possible. At this time, the pressure point at the left end of the thumb is the incision site, which is generally about 1-2 cm outside the second to last nipple on the left side of the lower abdomen. According to the size of the pig, the sow's ovary can be surgically removed according to the principle of fat forward, thin backward, full inward and hungry outward. In this embodiment, the sow's head, legs and back are fixed on one device at the same time, so that the pig can be fixed safely and conveniently, so that it is more stable during dynamic operation and more accurate during ovarian removal, thereby solving the problems of manpower consumption, personnel safety hazards, and serious pig injuries caused by the existing use of multiple people to assist in manually catching pigs.

[0042] Embodiment 2: This embodiment is basically the same as Embodiment 1, except that this embodiment further describes the structure of the left hind limb fixing assembly.

[0043] The groove 16 is an arc-shaped structure matched with the limiting rod. A sliding sleeve is provided at the right end of the adjusting plate 15. The sliding sleeve is sleeved on the sliding rod to realize the sliding function.

[0044] When implementing this embodiment, it is often necessary to adjust the fixing strength of the left hind limb. The adjustment plate 15 can be placed on the limit rod 12 through the groove 16. In order to make it in a relatively stable state, the groove 16 and the limit rod 12 are provided with mutually meshing inverted teeth. Since the left hind limb is located in the C-shaped placement groove 17, there is a downward pressure on the C-shaped placement groove, gradually pushing the adjustment plate forward. Due to the presence of the inverted teeth, the adjustment plate is gradually pushed inward and will not fall out. During use, the adjustment plate can be slowly pushed forward, gradually reducing the space between the C-shaped limit frame and the C-shaped placement groove.

[0045] In this embodiment, the front ends of the sliding rod and the limiting rod are fixed to the base through a fixing column. The fixing column is located at the front end of the limiting rod and a protective cover is mounted on the fixing column. When in use, the pig's buttocks rest against the fixing seat and the hind limbs rest against the flexible protective cover to reduce damage to the pig.

[0046] Embodiment 3: This embodiment is basically the same as Embodiment 1, except that this embodiment further describes the structure of the head fixing assembly.

[0047] like Figure 7 As shown in the figure, in this embodiment, the fixed plate 5 and the left fixed seat 3 are both provided with an articulated seat 19 in the same plane, the screw sleeve 6 and the connecting screw sleeve 9 are both provided on the articulated seat 19, the fixed screw 7 is sleeved in the screw sleeve 6, and an adjusting hand wheel 8 is provided at its upper end, and its lower end is threadedly connected in the connecting screw sleeve.

[0048] In this embodiment, the C-shaped arch is limited by the hinge seat on its right side, and it can only rotate with its hinge axis as the center, so that the screw sleeve on the fixed plate and the connecting screw sleeve on the left fixed seat are in the same plane. However, for different sizes of pigs, in actual use, it is often necessary to adjust the head retention area formed by the C-shaped arch and the base to avoid being too tight or too loose. Based on this purpose, in this embodiment, a hinge seat is provided on the fixed plate and the right fixed seat in the same plane, and the screw sleeve and the connecting screw sleeve are correspondingly arranged on the hinge seat, and the thread direction of the screw sleeve and the connecting screw sleeve is the same, so that the center lines of the screw sleeve and the connecting screw sleeve can be in the same straight line, so that the fixing screw is obliquely connected between the fixing plate and the left fixed seat, and due to the thread restrictions at both ends of the fixing screw, the fixing plate is in a fixed state.

[0049] Embodiment 4: This embodiment is basically the same as Embodiment 3, except that: this embodiment further describes the structure of the connecting screw sleeve.

[0050] like Figure 7 As shown in , a positioning plate 20 with an opening facing outward is provided on the outer side of the connecting screw sleeve, and the connecting screw sleeve 9 is arranged on the hinge seat through the torsion shaft. According to the content in Example 3, it is necessary to make the connecting screw sleeve and the screw sleeve correspond to each other in a straight line, which is convenient for operation here. In this embodiment, the connecting screw sleeve is arranged on a rotatable hinge seat, and a torsion spring is arranged at the rotating shaft of the hinge seat to make the connecting screw sleeve swing vertically outward, and a positioning plate protruding vertically upward is provided on the outer side of the connecting screw sleeve. The fixing screw touches the positioning plate from the outer side of the positioning plate and adjusts the position of the connecting screw sleeve accordingly. When the fixing screw is parallel to the positioning plate, the fixing screw corresponds to the connecting screw sleeve. At this time, the docking can be completed by rotating the adjusting hand wheel. It is easy to use and improves the fixing efficiency of the C-shaped bow frame.

[0051] Example 5: This example is basically the same as Example 1, with the difference being that this example further explains the structures of the C-shaped placement groove and the C-shaped bow frame.

[0052] In this embodiment, the cross-section of the C-shaped placement groove is a structure that gradually tilts from the inside to the outside; in this structure, the pig's left hind limb is restricted between the C-shaped placement groove and the C-shaped limiting frame, and the pig's left hind limb gradually tilts upward along the inclined surface of the C-shaped placement groove, so that the pig's left hind limb is slightly lifted, thereby preventing the pig's left hind limb from touching the base or the ground downward.

[0053] The C-shaped arch frame includes two C-shaped arch plates arranged at intervals, namely a front C-shaped arch plate and a rear C-shaped arch plate. The right ends of the two C-shaped arch plates are respectively hinged on the right fixed seats, and the left ends thereof are fixedly connected together through a fixed plate.

[0054] In this embodiment, the front C-shaped arch plate has a smaller curvature than the rear C-shaped arch plate, and the curvatures of the two are different. The front C-shaped arch plate and the rear C-shaped arch plate are used to secure the downward area of ​​the head and neck respectively.

[0055] When this embodiment is implemented, an adjustment flat hole is provided on the left fixed seat, and a shift rod is vertically provided in the adjustment flat hole. The shift rod is a screw rod and can slide in the adjustment flat hole. The shift rod is threadedly connected with nuts on both sides of the adjustment flat hole. The position of the shift rod is fixed by limiting the two nuts, and the restraining range of the pig's right forelimb is adjusted.

Claims

1. A sow castration fixing device, characterized in that: The invention comprises a base (1), a head fixing component, a left hind limb fixing component and a back baffle (10); the head fixing component comprises a left fixing seat (3), a right fixing seat (2), a C-shaped arch frame (4), a fixing plate (5) and a fixing screw (7); the left fixing seat (3) and the right fixing seat (2) are respectively fixed to the left and right sides of the base (1); the right side of the C-shaped arch frame (4) is hinged in the right fixing seat (2); a fixing plate (5) is arranged on the left side thereof; a screw sleeve (6) is arranged through the fixing plate (5); the fixing screw (7) is threadedly connected to the screw sleeve (6); a connecting screw sleeve (9) is arranged on the left fixing seat (3); the fixing screw (7) is matched and connected in the connecting screw sleeve (9); the back baffle (10) is fixed to the middle part of the right side of the base (1); the left hind limb fixing component comprises a sliding rod (13), a limiting rod (12), an adjusting plate (15) and a C-shaped limiting frame (14); the limiting rod (12) and The sliding rod (13) is arranged parallel to the base (1), the sliding rod (13) is located on the left side, the limiting rod (12) is located on the right side, and a C-shaped limiting frame (14) with an opening facing downward is fixedly arranged on the right side of the limiting rod (12). The left end of the adjustment plate (15) is sleeved on the sliding rod (13) and can slide along the sliding rod (13). The middle part of the adjustment plate (15) is provided with a groove (16) corresponding to the limiting rod (12), and the right side thereof is provided with a groove corresponding to the C-shaped limiting rod. The sliding rod (13) and the limiting rod (12) are used to guide and support the adjusting plate (15), respectively, so that the adjusting plate (15) can slide along the sliding rod (13) and be supported on the limiting rod (12), and a C-shaped limiting frame (14) and a C-shaped placement groove (17) arranged in a corresponding offset manner are arranged at the inner end of the limiting rod (12) and the outer end of the adjusting plate (15), and the left hind limb of the pig is placed therein. The limiting interval formed by the C-shaped limiting frame (14) and the C-shaped placement groove (17) can be adjusted according to the body shape of the pig; because the left hind limb is located in the C-shaped placement groove (17), a downward pressure is exerted on the C-shaped placement groove (17), and the adjustment plate (15) is gradually pushed forward, and the adjustment plate (15) can be placed on the limiting rod (12) through the placement groove (16). In order to make it in a relatively stable state, the placement groove (16) and the limiting rod (12) are provided with mutually meshing inverted teeth; due to the presence of the inverted teeth, the adjustment plate (15) is gradually pushed inward and will not fall out. During use, the adjustment plate (15) can be slowly pushed forward, and the space between the C-shaped limiting frame (14) and the C-shaped placement groove (17) is gradually reduced.

2. The sow castration fixing device according to claim 1, characterized in that: A supporting leg (11) is provided at the bottom of the base (1), and the supporting leg (11) is a U-shaped structure with an opening facing inwards.

3. The sow castration fixing device according to claim 1, characterized in that: The bridging groove (16) is an arc-shaped structure matching the limiting rod (12); a sliding sleeve is provided at the right end of the adjusting plate (15), and the sliding sleeve is sleeved on the sliding rod (13).

4. The sow castration fixing device according to claim 1, characterized in that: The front ends of the sliding rod (13) and the limiting rod (12) are fixed to the base (1) via a fixing column, the fixing column is located at the front end of the limiting rod (12), a protective sleeve is sleeved on the fixing column, and a protective pad (21) is arranged on the inner side of the back baffle (10).

5. The sow castration fixing device according to claim 1, characterized in that: The back baffle (10) is a fence-like structure, with a rotatable flap (23) disposed on its upper portion.

6. The sow castration fixing device according to claim 1, characterized in that: The fixing plate (5) and the left fixing seat (3) are both provided with an articulated seat (18) in the same plane, the screw sleeve (6) and the connecting screw sleeve (9) are both provided on the articulated seat (18), the fixing screw rod (7) is sleeved in the screw sleeve (6), an adjusting hand wheel (8) is provided at the upper end thereof, and a lower end thereof is threadedly connected in the connecting screw sleeve (9).

7. The sow castration fixing device according to claim 6, characterized in that: A positioning plate (20) with an outward opening is arranged on the outer side of the connecting screw sleeve (9), and the connecting screw sleeve (9) is arranged on the hinge seat (18) via a torsion shaft.

8. The sow castration fixing device according to claim 1, characterized in that: The cross section of the C-shaped placement groove (17) is a structure that gradually inclines from the inside to the outside.

9. The sow castration fixing device according to claim 1, characterized in that: The C-shaped arch frame (4) comprises two C-shaped arch plates which are arranged at intervals, the right ends of the two C-shaped arch plates are respectively hinged on the right fixing seat (2), and the left ends thereof are fixedly connected together via a fixing plate (5).

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