A medicine-applying device for preventing postpartum metritis in sows

Abstract

The present invention discloses a medication-applying device for preventing postpartum metritis in sows, which includes a supporting device and a medication-applying device. The supporting device includes a leg support and a head support, and the medication-applying device includes an expansion structure, an injection structure, a transmission structure, and a pulling structure. The injection structure includes a three-way valve body, which is composed of a tube body, a first injection port, and a second injection port. The tube body is provided with an applicator, which is composed of a cotton head and a cotton rod. The cotton head is located below the first injection port in one state and below the second injection port in another state. The cotton rod is connected to the pulling structure via a transmission structure. Efficient and convenient medication is applied to postpartum sows to reduce the incidence of metritis.

Description

Technical Field

[0001] The invention relates to a sow postpartum prevention and treatment technology, in particular to a medicine applying device for preventing sow postpartum metritis. Background Art

[0002] Sow metritis is a common reproductive organ disease in modern, intensive, large-scale pig farms, with an incidence exceeding 20% ​​in breeding pig farms. It can severely impact reproductive performance, preventing normal estrus and reducing the success rate of embryo conception. Post-partum, metritis is more common in sows, necessitating careful nursing care.

[0003] For example, CN107281338B discloses the use of shallots for treating sow metritis. The patent proposes that shallots can be used instead of penicillin to treat sow metritis.

[0004] For example, patent CN110464972A discloses a cervical medication device comprising an elastic cup for accommodating medical cotton, the elastic cup having an adjustable opening. The elastic cup, a support seat, and a push-pull member work together to apply medication to the lesion of the cervix.

[0005] Since sows are usually in a state of general fatigue and weakness after giving birth, it is quite difficult to apply medicine to their uterus. In view of this, it is necessary to further improve the existing medicine applying device. Summary of the Invention

[0006] In order to solve the defects of the above-mentioned prior art, the present invention proposes a medication device for preventing sow postpartum metritis, which can efficiently and conveniently administer medication to postpartum sows and reduce the incidence of metritis.

[0007] The technical solution of the present invention is achieved as follows:

[0008] A medicine-applying device for preventing postpartum metritis in sows comprises a supporting device and a medicine-applying device, wherein the supporting device comprises a leg support and a head support, and the medicine-applying device comprises an expansion structure, a medicine injection structure, a transmission structure and a pulling structure, wherein:

[0009] The injection structure includes a three-way valve body, which is composed of a tube body, a first injection port and a second injection port. The tube body is provided with a smear member, which is composed of a cotton head and a cotton rod. The cotton head is located below the first injection port in one state and below the second injection port in another state. The cotton rod is connected to the pulling structure via a transmission structure.

[0010] The transmission structure includes a connecting sleeve, a ball head connector and a mounting plate, a driven gear and a driving gear are provided on the mounting plate, a volute spring is provided between the driving gear and the mounting plate, a driven rack and a driving rack are respectively meshed under the driven gear and the driving gear, the driven rack is connected to the cotton rod, and the driving rack is connected to the pulling structure, a first transmission gear and a second transmission gear are provided between the driven gear and the driving gear, in one state, the driving gear is meshed with the driven gear via the first transmission gear, and in another state, the driving gear is meshed with the driven gear via the second transmission gear, and the number of teeth of the second transmission gear is greater than that of the first transmission gear.

[0011] In the medicine-applying device for preventing postpartum metritis in sows of the present invention, a first arc-shaped groove and a second arc-shaped groove are respectively provided on the mounting plate, the first transmission gear is slidably connected in the first arc-shaped groove via a first return spring, and the second transmission gear is slidably connected in the second arc-shaped groove via a second return spring.

[0012] In the medicine-applying device for preventing postpartum metritis in sows of the present invention, the first transmission gear rotates along a first arcuate groove trajectory, and the second transmission gear rotates along a second arcuate groove trajectory, wherein the rotation trajectories of the first transmission gear and the second transmission gear are concentric with the driving gear.

[0013] In the medicine-applying device for preventing postpartum metritis in sows of the present invention, the driven rack and the active rack are staggered.

[0014] In the medicine-applying device for preventing postpartum metritis in sows of the present invention, the expansion structure includes a fixed shaft block and a sliding shaft block. The fixed shaft block is connected to the tube body, and the sliding shaft block is axially slidably connected to the tube body.

[0015] In the medicine-applying device for preventing postpartum metritis in sows of the present invention, the fixed shaft block is slidably connected to several expansion plates in the radial direction, a connecting block is fixed under the expansion plate, a tension spring is provided between the connecting block and the fixed shaft block, and one end of the connecting block is connected to a wedge block.

[0016] In the medicine-applying device for preventing postpartum metritis in sows of the present invention, the sliding shaft block is located at the end of the wedge block away from the fixed shaft block, wherein the sliding shaft block moves along the tube body toward the end close to the fixed shaft block, pushing several expansion plates to move toward the center of the circle away from the fixed shaft block.

[0017] In the medicine-applying device for preventing postpartum metritis in sows of the present invention, a connecting frame is installed under the leg frame, and a side frame is connected to both sides of the leg frame. A plurality of base frames are installed on the connecting frame, and the base frames are fixedly connected to the side frames. One end of the leg frame is also connected to a mounting frame, and the head support is connected to the mounting frame.

[0018] In the medicine-applying device for preventing postpartum metritis in sows of the present invention, the head support consists of a vertical part, a connecting part and an arc support part. The vertical part is connected to the mounting frame, and the connecting part is used to connect the vertical part with the arc support part. The arc support part is located between the two vertical parts.

[0019] In the medicine-applying device for preventing postpartum metritis in sows of the present invention, the connecting sleeve is located between the three-way valve body and the pulling structure, the ball head connector is rotatably connected to the connecting sleeve, and the mounting plate is fixedly mounted on the inner wall of the ball head connector.

[0020] In the medicine-applying device for preventing postpartum metritis in sows of the present invention, the pulling structure includes an outer shell ring with a buckle, through which the outer shell ring is fixed to the connecting sleeve, and one end of the outer shell ring is also fixedly connected to an arc-shaped sleeve, and a shift block is provided below the arc-shaped sleeve, wherein one end of the arc-shaped sleeve has a mounting buckle, and the mounting buckle has a pull ring inside, and the pull ring is fixedly connected to the active rack.

[0021] The medication-applying device for preventing postpartum metritis in sows, embodying the present invention, has the following beneficial effects: The expansion structure adheres to the inner wall of the sow's uterus and stretches it, facilitating medication application. Because medication application to the sow requires two passes, the coordination of the injection and transmission mechanisms significantly improves medication application efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the support device of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the headrest of the present invention;

[0024] Figure 3 This is a schematic structural diagram of the medicine feeding device of the present invention;

[0025] Figure 4 It is a side view of the medicine feeding device of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the expansion structure of the present invention;

[0027] Figure 6 is a side sectional view of the expansion structure of the present invention;

[0028] Figure 7 This is a schematic structural diagram of the drug injection structure of the present invention;

[0029] Figure 8 It is a partially covered diagram of the transmission structure of the present invention;

[0030] Figure 9It is a partial structural diagram of the transmission structure of the present invention;

[0031] Figure 10 It is a side view of the transmission structure of the present invention;

[0032] Figure 11 for Figure 10 A structural diagram from another angle;

[0033] Figure 12 It is a structural schematic diagram of the pulling structure of the present invention;

[0034] The accompanying drawings are denoted by numerals as follows: 10-support device, 101-leg frame, 102-connecting frame, 103-side frame, 104-base frame, 105-mounting frame, 106-head support, 106'1-vertical part, 106'2-connecting part, 106'3-arc support part, 20-drug feeding device, 21-expansion structure, 211-fixed shaft block, 212-expansion plate, 212'1-straight plate, 212'2-arc plate, 213-sliding shaft block, 214-wedge block, 215-connecting block, 216-tension spring, 22-drug injection structure, 221-three-way valve body, 221'1-tube body, 221'2-first drug injection port, 221'3-second drug injection port, 222-connecting outer ring block, 223-connecting inner Ring block, 224-end ring block, 225-applicator, 225'1-cotton head, 225'2-cotton rod, 23-transmission structure, 231-connecting sleeve, 232-ball head connector, 233-mounting plate, 234-driven gear, 235-driving gear, 236-driven rack, 237-driving rack, 238-first transmission gear, 238'1-first arcuate groove, 238'2-first return spring, 239-second transmission gear, 239'1-second arcuate groove, 239'2-second return spring, 2310-volute spring, 24-pulling structure, 241-shell ring, 242-buckle, 243-arc sleeve, 244-shift block, 245-mounting buckle, 246-pull ring. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0036] After giving birth, the sow's uterus needs to be treated with iodine tincture to reduce inflammation and stop bleeding, and then penicillin is applied to the inner wall of the uterus to prevent metritis. Since sows are often in a state of general fatigue and weakness after giving birth, the existing medication device cannot effectively apply medication to them. The present invention improves the medication device. The medication device for preventing sow postpartum metritis of the present invention includes a support device 10 and a medication device 20. Figures 1 to 2As shown, the support device 10 includes a leg frame 101 and a head support 106. A connecting frame 102 is installed below the leg frame 101, and a side frame 103 is connected to both sides of the leg frame 101. The connecting frame 102, the side frame 103 and the leg frame 101 are welded and fixed. A plurality of base frames 104 are installed on the connecting frame 102, and the base frames 104 are fixedly connected to the side frames 103. The base frames 104 are used to support the sow's body. A heating device can also be installed below the base frame 104 to prevent the sow from being cold after giving birth and increase the incidence of metritis. The plurality of base frames 104 are installed at intervals to facilitate heat transfer of the heating device and reduce heat loss. Among them, one end of the leg frame 101 is also connected to the mounting frame 105, and the head support 106 is connected to the mounting frame 105.

[0037] In this embodiment, the postpartum sow is transported to the top of the base frame 104, the base frame 104 supports the sow's body, and the sow's head is supported by the head support 106. Figure 2 As shown, head support 106 consists of a vertical portion 106'1, a connecting portion 106'2, and an arc-shaped support portion 106'3. Vertical portion 106'1 is connected to mounting bracket 105, while connecting portion 106'2 connects vertical portion 106'1 to arc-shaped support portion 106'3. Arc-shaped support portion 106'3 is located between vertical portions 106'1. Arc-shaped support portion 106'3 is recessed downward to facilitate positioning of the sow's head and prevent it from rolling over during medication application.

[0038] like Figures 3 to 6 As shown, the medicine feeding device 20 includes an expansion structure 21, a medicine injection structure 22, a transmission structure 23 and a pulling structure 24. The expansion structure 21 includes a fixed shaft block 211 and a sliding shaft block 213. The fixed shaft block 211 is fixedly connected to one end of the medicine injection structure 22, and the sliding shaft block 213 is axially slidably connected to one end of the medicine injection structure 22. The fixed shaft block 211 is radially slidably connected to a plurality of expansion plates 212, and a connecting block 215 is fixed below the expansion plate 212. A tension spring 216 is provided between the connecting block 215 and the fixed shaft block 211, and one end of the connecting block 215 is connected to a wedge block 214. The sliding shaft block 213 is located at the end of the wedge block 214 away from the fixed shaft block 211, wherein the sliding shaft block 213 moves along the medicine injection structure 22 toward the end close to the fixed shaft block 211, pushing the plurality of expansion plates 212 toward the center of the circle away from the fixed shaft block 211, so that the plurality of expansion plates 212 are opened. As shown Figure 6 As shown, the expansion plate 212 is composed of a straight plate 212 ′ 1 and a curved plate 212 ′ 2 .

[0039] In this embodiment, in order to facilitate the application of medicine to the sow, before applying the medicine, one end of the arc plate 212'2 of the expansion plate 212 is directed toward the sow's cervical opening, and the expansion plate 212 is inserted into the sow's cervix. At this time, the sliding shaft block 213 is pushed toward the direction close to the fixed shaft block 211. Under the action of the wedge block 214, the sliding shaft block 213 drives the expansion plate 212 to move toward the center of the circle away from the fixed shaft block 211, so that the expansion plate 212 fits the inner wall of the sow's uterus and stretches it open, making it easier to apply medicine to the sow.

[0040] Because it is necessary to try iodine first to reduce inflammation and stop bleeding, and then apply penicillin to the inner wall of the uterus to prevent metritis. Figure 7 As shown, the injection structure 22 includes a three-way valve body 221, which consists of a tube body 221'1, a first injection port 221'2 and a second injection port 221'3. The fixed shaft block 211 is fixedly connected to the tube body 221'1, and the sliding shaft block 213 is slidably connected to the tube body 221'1. A smear 225 is provided inside the tube body 221'1, and the smear 225 consists of a cotton head 225'1 and a cotton rod 225'2. An outer connecting ring block 222 is installed on the outside of the three-way valve body 221, and one end of the outer connecting ring block 222 is fixedly connected to an end ring block 224, which is connected to the transmission structure 23. An inner connecting ring block 223 is installed on the inside of the three-way valve body 221, and the inner connecting ring block 223 is used to limit the maximum stroke of the smear 225 moving toward the end ring block 224. The cotton tip 225'1 is located below the first injection port 221'2 in one state and below the second injection port 221'3 in another state. The cotton rod 225'2 is connected to the pulling structure 24 via the transmission structure 23. The first injection port 221'2 is used to inject iodine medicament, and the second injection port 221'3 is used to inject penicillin cream.

[0041] In this embodiment, initially, cotton tip 225'1 is positioned below first injection port 221'2. Iodine is injected into cotton tip 225'1 through first injection port 221'2, and cotton tip 225'1 is extended to reduce inflammation and stop bleeding on the sow's uterine wall. Subsequently, cotton tip 225'1 is positioned below second injection port 221'3, and penicillin cream is applied to cotton tip 225'1. Cotton tip 225'1 is then extended again to further apply the cream to the sow's uterus, preventing the incidence of metritis.

[0042] Since it is troublesome to apply medicine to the sow's uterus twice, a transmission structure 23 is installed at one end of the injection structure 22. Figures 8 to 11As shown, the transmission structure 23 includes a connecting sleeve 231, a ball connector 232, and a mounting plate 233. The connecting sleeve 231 is located between the three-way valve body 221 and the pulling structure 24. The ball connector 232 is rotatably connected to the connecting sleeve 231 and can rotate in the radial and angular directions of the connecting sleeve 231. The mounting plate 233 is fixedly mounted on the inner wall of the ball connector 232. A driven gear 234 and a driving gear 235 are provided on the mounting plate 233. A volute spring 2310 is provided between the driving gear 235 and the mounting plate 233. A driven rack 236 and a driving rack 237 are respectively engaged below the driven gear 234 and the driving gear 235. The driven rack 236 is connected to the cotton rod 225'1, and the driving rack 237 is connected to the pulling structure 24. The driven rack 236 and the driving rack 237 are arranged in an alternating manner. A first transmission gear 238 and a second transmission gear 239 are disposed between the driven gear 234 and the driving gear 235. In one state, the driving gear 235 meshes with the driven gear 234 via the first transmission gear 238. In another state, the driving gear 235 meshes with the driven gear 234 via the second transmission gear 239. The second transmission gear 239 has a greater number of teeth than the first transmission gear 238. The mounting plate 233 is provided with a first arcuate slot 238'1 and a second arcuate slot 239'1, respectively. The first transmission gear 238 slides within the first arcuate slot 238'1 via a first return spring 238'2, while the second transmission gear 239 slides within the second arcuate slot 239'1 via a second return spring 239'2. The first transmission gear 238 rotates along the first arcuate slot 238'1, while the second transmission gear 239 rotates along the second arcuate slot 239'1. The rotational paths of the first and second transmission gears 238 and 239 are concentric with the driving gear 235. That is, when the first transmission gear 238 and the second transmission gear 239 rotate along the first arc-shaped groove 238 ′ 1 and the second arc-shaped groove 239 ′ 1 , they are always engaged with the driving gear 235 .

[0043] like Figure 12 As shown, the pulling structure 24 includes a shell ring 241, which has a buckle 242. The shell ring 241 is fixed to the connecting sleeve 231 through the buckle 242. One end of the shell ring 241 is also fixedly connected to an arc sleeve 243, and a shift block 244 is provided below the arc sleeve 243. One end of the arc sleeve 243 has a mounting buckle 245, and the mounting buckle 245 has a pull ring 246 inside. The pull ring 246 is fixedly connected to the active rack 237, and one end of the pull ring 246 has an arc handle.

[0044] In this embodiment, in the initial state, the cotton head 225'1 is located below the first injection port 221'2, and the first injection port 221'2 injects the iodine medicament into the cotton head 225'1. At this time, the pull ring 246 and the active rack 237 drive the active gear 235 to rotate clockwise (as shown in FIG. Figure 11 direction), when the driving gear 235 begins to rotate clockwise, it pushes the first transmission gear 238 to move upward along the first arcuate groove 238'1 until the first transmission gear 238 engages with the driven gear 234 and the first return spring 238'2 is compressed. The driving gear 235 continues to rotate, and the driven gear 234 is driven to rotate through the first transmission gear 238. The rotation of the driven gear 234 drives the driven rack 236 and the smear member 225 to move toward the expansion structure 21, and the iodine tincture is used to reduce inflammation and stop bleeding on the inner wall of the sow's uterus. Among them, the ball head connector 232 can rotate in the radial and angular directions of the connecting sleeve 231, which facilitates the application of medicine to the sow. When the driving gear 235 rotates clockwise, the driving gear 235 compresses the spiral spring 2310. After the sow is medicated, the pull ring 246 is released, and the driving gear 235 rotates counterclockwise under the action of the spiral spring 2310. Under the action of the first return spring 238'2, the first transmission gear 238 separates from the driven gear 234. The driving gear 235 rotates counterclockwise, pushing the second transmission gear 239 downward along the second arcuate groove 239'1. The second return spring 239'2 is compressed, and the driving gear 235 then drives the driven gear 234 to rotate via the second transmission gear 239. The rotation of the driven gear 234 drives the driven rack 236 and its applicator 225 back to its original position. Because the second transmission gear 239 has a greater number of teeth than the first transmission gear 238, by changing the gear ratio, the cotton tip 225'1 can be positioned below the second injection port 221'3 when the applicator 225 returns to its original position. When applying the medicine for the second time, there is no need to manually adjust the cotton tip 225'1 below the second injection port 221'3, which shortens the overall application time and improves the application efficiency.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A medicine-applying device for preventing postpartum metritis in sows, comprising a supporting device and a medicine-applying device, characterized in that: The supporting device includes a leg support and a head support, and the medicine feeding device includes an expansion structure, a medicine injection structure, a transmission structure and a pulling structure, wherein, The injection structure includes a three-way valve body, which is composed of a tube body, a first injection port and a second injection port. The tube body is provided with a smear member, which is composed of a cotton head and a cotton rod. The cotton head is located below the first injection port in one state and below the second injection port in another state. The cotton rod is connected to the pulling structure via a transmission structure. The transmission structure includes a connecting sleeve, a ball head connector and a mounting plate, a driven gear and a driving gear are provided on the mounting plate, a volute spring is provided between the driving gear and the mounting plate, a driven rack and a driving rack are respectively meshed with each other below the driven gear and the driving gear, the driven rack is connected to the cotton rod, and the driving rack is connected to the pulling structure, a first transmission gear and a second transmission gear are provided between the driven gear and the driving gear, in one state, the driving gear is meshed with the driven gear via the first transmission gear, and in another state, the driving gear is meshed with the driven gear via the second transmission gear, and the number of teeth of the second transmission gear is greater than that of the first transmission gear. The mounting plate is provided with a first arc groove and a second arc groove, respectively. The first transmission gear is slidably connected in the first arc groove via a first return spring, and the second transmission gear is slidably connected in the second arc groove via a second return spring. The first transmission gear rotates along the first arc groove track, and the second transmission gear rotates along the second arc groove track, wherein the rotation tracks of the first transmission gear and the second transmission gear are concentric with the driving gear. The second transmission gear drives the driven gear to rotate, and the driven gear drives the driven rack and the smear member to return to their original position. By changing the gear transmission ratio, the cotton head can be located below the second medicine injection port when the smear member returns to its original position.

2. The medicine-applying device for preventing sow postpartum metritis according to claim 1, characterized in that: The driven racks and the active racks are distributed alternately.

3. The medicine-applying device for preventing sow postpartum metritis according to claim 1, characterized in that: The expansion structure includes a fixed shaft block and a sliding shaft block. The fixed shaft block is connected to the tube body, and the sliding shaft block is axially slidably connected to the tube body.

4. The medicine-applying device for preventing sow postpartum metritis according to claim 3, characterized in that: The fixed shaft block is slidably connected to a plurality of expansion plates in the radial direction, a connecting block is fixed below the expansion plate, a tension spring is provided between the connecting block and the fixed shaft block, and one end of the connecting block is connected to a wedge block.

5. The medicine-applying device for preventing sow postpartum metritis according to claim 4, characterized in that: The sliding shaft block is located at the end of the wedge block away from the fixed shaft block, wherein the sliding shaft block moves along the tube body toward the end close to the fixed shaft block, pushing the plurality of expansion plates to move toward the center of the circle away from the fixed shaft block.

6. The medicine-applying device for preventing sow postpartum metritis according to claim 1, characterized in that: A connecting frame is installed under the leg frame, and a side frame is connected to both sides of the leg frame. A plurality of base frames are installed on the connecting frame, and the base frames are fixedly connected to the side frames. One end of the leg frame is also connected to a mounting frame, and the head support is connected to the mounting frame.

7. The medicine-applying device for preventing sow postpartum metritis according to claim 6, characterized in that: The headrest consists of a vertical part, a connecting part and an arc supporting part. The vertical part is connected to the mounting frame. The connecting part is used to connect the vertical part and the arc supporting part. The arc supporting part is located between the two vertical parts.

8. The medicine-applying device for preventing sow postpartum metritis according to claim 1, characterized in that: The connecting sleeve is located between the three-way valve body and the pulling structure, the ball head connecting piece is rotatably connected to the connecting sleeve, and the mounting plate is fixedly mounted on the inner wall of the ball head connecting piece.

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