Drenching device for animal husbandry and veterinary medicine

Abstract

The invention discloses a drenching device for animal husbandry and veterinary medicine, and belongs to the technical field of animal husbandry breeding instruments. The drenching device for the animal husbandry veterinary medicine comprises a medicine supply device, a medicine passing pipe and a nozzle, and is characterized by further comprising a plug used for plugging a pipe hole of the medicine passing pipe, a plurality of through holes are formed in the outer edge of the plug, and the pipe hole of the medicine passing pipe is communicated with a spout of the nozzle through the through holes; the end, close to the medicine passing pipe, of the L-shaped connecting rod abuts against the end, away from the medicine passing pipe, of the plug, the end, away from the medicine passing pipe, of the L-shaped connecting rod extends out of the nozzle and abuts against the tongue of the livestock, and when the livestock swallow, the tongue of the livestock can drive the far end of the L-shaped connecting rod to rotate, so that the near end of the L-shaped connecting rod is driven to apply extrusion force towards a pipe hole of the medicine passing pipe to the plug; and the tube hole of the medicine passing tube is blocked by the plug. According to the drenching device for animal husbandry and veterinary medicine, bucking caused by the fact that livestock cannot swallow liquid medicine in time can be avoided, the safety of the livestock drenching process is guaranteed, and medicine waste is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of animal husbandry and breeding equipment, and in particular to a drug injection device for animal husbandry and veterinary medicine. Background Art

[0002] In the process of livestock breeding, it is necessary to prevent and control diseases in a timely manner. When preventing and controlling livestock diseases, livestock need to be given medication. Common medication methods include injection, infusion and external use. Different medication methods target different diseases, have different medicinal properties and different effects. When using the infusion method to administer medication to livestock, in order to prevent livestock resistance, it is usually necessary to use a dedicated medication device to improve the efficiency of drug infusion.

[0003] The core components of the existing animal husbandry and veterinary medicine injection device include a medicine supply device, a medicine pipe and a nozzle. When in use, the nozzle is inserted into the mouth of the livestock, and the medicine solution is introduced into the medicine pipe through the medicine supply device. After the medicine solution passes through the medicine pipe, it is sprayed out from the nozzle, thereby realizing the operation of injecting medicine into the livestock. When the above-mentioned medicine injection device is used to inject medicine into livestock, the injection process of the medicine solution is usually continuous. When the livestock swallows the medicine solution in the mouth, the medicine solution is still injected into the mouth of the livestock, which will cause the livestock to choke and cough because they do not have time to swallow, thereby causing harm to the livestock and causing a waste of medicine solution. Summary of the invention

[0004] The purpose of the present invention is to overcome the problems in the prior art and provide a device for injecting medicine into livestock and veterinary medicine, which can prevent the livestock from choking and coughing due to not having enough time to swallow the medicine during the process of injecting medicine into livestock, thereby ensuring the safety of the livestock injecting medicine process.

[0005] The present invention provides a drug injection device for animal husbandry and veterinary medicine, comprising a drug supply device, a drug passing tube and a nozzle, wherein the drug supply device is connected with the nozzle through the drug passing tube, and the drug supply device is used to supply drugs into the drug passing tube, and is characterized in that it also comprises:

[0006] A plug is slidably connected to the nozzle, and is used to block the tube hole of the medicine tube. The outer edge of the plug is provided with a plurality of through holes, and the tube hole of the medicine tube is connected with the nozzle opening of the nozzle through the plurality of through holes;

[0007] An L-shaped connecting rod is hinged to the side wall of the nozzle, and one end of the L-shaped connecting rod close to the medicine-passing tube abuts against the end of the plug away from the medicine-passing tube. The end of the L-shaped connecting rod away from the medicine-passing tube extends out of the nozzle and abuts against the tongue of the livestock. When the livestock swallows, the tongue of the livestock drives the distal end of the L-shaped connecting rod to rotate, thereby driving the proximal end of the L-shaped connecting rod to apply an extrusion force to the plug toward the tube hole of the medicine-passing tube, so that the tube hole of the medicine-passing tube can be blocked by the plug.

[0008] Preferably, a positioning retaining ring is provided on the outer edge of one end of the nozzle away from the nozzle, and a compression sleeve is connected to the outer wall of the medicine-passing tube along its axial sliding direction. A spring is provided outside the compression sleeve, and the spring is against the compression sleeve. The spring is used to apply an elastic force toward one end of the nozzle to the compression sleeve to drive the compression sleeve to be pressed against the lips of the livestock, so that the positioning retaining ring is against the inner side of the livestock's gums, thereby making the distal end of the L-shaped connecting rod fit tightly against the tongue coating of the livestock's tongue.

[0009] Preferably, a clamping mechanism is provided on the spray pipe, and when the positioning retaining ring abuts against the inner side of the livestock's gums and the pressing sleeve presses the livestock's lips, the clamping mechanism clamps the upper and lower jaws of the livestock.

[0010] Preferably, the clamping mechanism includes a connecting rod mechanism, an upper clamping plate and a lower clamping plate, the connecting rod mechanism is arranged on the side wall of the medicine tube, and the upper clamping plate and the lower clamping plate are both connected to the connecting rod mechanism. When the positioning retaining ring abuts against the inner side of the livestock's gums and the clamping sleeve presses the livestock's lips, under the drive of the connecting rod mechanism, the upper clamping plate is pressed against the livestock's upper jaw, and the lower clamping plate is pressed against the livestock's lower jaw.

[0011] Preferably, the connecting rod mechanism includes a first connecting rod, a second connecting rod and a driving mechanism, the middle part of the first connecting rod and the middle part of the second connecting rod are both hinged to the outer wall of the medicine passing tube, the first connecting rod is connected to the upper clamping plate at one end close to the nozzle, and the second connecting rod is connected to the lower clamping plate at one end close to the nozzle. The driving mechanism is arranged at the end of the medicine passing tube away from the nozzle, the driving mechanism is connected to both the end of the first connecting rod away from the nozzle and the end of the second connecting rod away from the nozzle, and the driving mechanism is used to drive the first connecting rod and the second connecting rod to move so that the upper clamping plate and the lower clamping plate are close to each other.

[0012] Preferably, the first connecting rod is provided with a first sliding groove at one end close to the nozzle, a pressing block is provided outside the pressing sleeve, the pressing block is provided with a sliding hole along the axial direction of the medicine passing tube, the outer wall of the pressing sleeve is slidably connected to the sliding hole of the pressing block, the spring is against the pressing block at one end away from the pressing sleeve, a first slider is provided on the pressing block, the first slider is slidably connected in the first sliding groove, and when the first connecting rod drives the upper clamping plate to move toward the lower clamping plate, the first sliding groove drives the pressing block to move toward one end close to the nozzle through the first slider.

[0013] Preferably, a second slider is provided on the pressing block, the first slider is provided at the upper end of the pressing block, the second slider is provided at the lower end of the pressing block, a second sliding groove is provided at the end of the second connecting rod close to the nozzle, and the second slider is slidably connected in the second sliding groove, and when the second connecting rod drives the lower clamping plate to move toward the direction close to the upper clamping plate, the second sliding groove drives the pressing block to move toward the end close to the nozzle through the second slider.

[0014] Preferably, the driving mechanism includes a threaded sleeve and a connecting sleeve, the outer wall of the medicine passing tube is provided with an external thread, the threaded sleeve is threadedly connected to the external thread, the connecting sleeve is pivotally connected to the threaded sleeve, a third slider and a fourth slider are provided on the connecting sleeve, a third slide groove is provided at the end of the first connecting rod away from the nozzle, a fourth slide groove is provided at the end of the second connecting rod away from the nozzle, the third slider is slidably connected in the third slide groove, and the fourth slider is slidably connected in the fourth slide groove, and when the threaded sleeve moves toward the direction close to the nozzle, the upper clamping plate and the lower clamping plate approach each other under the drive of the third slider and the fourth slider.

[0015] Preferably, the lower end surface of the upper clamping plate is provided with a first arcuate concave surface, which fits the upper jaw of the livestock, and the upper end surface of the lower clamping plate is provided with a second arcuate concave surface, which fits the upper jaw of the livestock.

[0016] Preferably, a sealing ring is provided at one end of the medicine passing tube close to the nozzle, the tube hole of the medicine passing tube is connected with the nozzle through the inner hole of the sealing ring, and the plug blocks the tube hole of the medicine passing tube by blocking the inner hole of the sealing ring.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: in the animal husbandry and veterinary medicine injection device of the present invention, medicine solution is sprayed into the mouth of the livestock through the nozzle, and the distal end of the L-shaped connecting rod will also be tightly attached to the tongue coating of the livestock's tongue. When the livestock swallows, the swallowing reaction will cause the livestock's tongue to unconsciously push up. When the tongue is pushed up, since the distal end of the L-shaped connecting rod is against the tongue coating of the livestock's tongue, the tongue will drive the L-shaped connecting rod to rotate, and the proximal end of the L-shaped connecting rod will deflect toward one end of the medicine tube, thereby applying an extrusion force toward one side of the medicine tube to the plug, thereby driving the plug to move toward one side of the medicine tube, and the plug is inserted into the tube hole of the medicine tube, automatically stopping the injection of medicine solution, thereby avoiding the livestock from choking and coughing due to not having time to swallow the medicine solution, ensuring the safety of the livestock medicine injection process, and avoiding medicine waste.

[0018] By setting a compression sleeve, a spring drives the compression sleeve to apply a squeezing force to the lips of the livestock, and the squeezing force drives the medicine-filling tube to move to the outside of the mouth of the livestock until the inner side of the gums of the livestock abuts against the positioning retaining ring, which can firmly fix the position of the medicine-filling tube, ensure that the distal end of the L-shaped connecting rod is closely fitted with the tongue coating of the tongue of the livestock, thereby ensuring that when the livestock swallows, the L-shaped connecting rod can be accurately driven by the tongue of the livestock, ensuring that the livestock stops filling medicine when swallowing. By setting a clamping mechanism, when the positioning retaining ring abuts against the inner side of the gums of the livestock and the compression sleeve presses the lips of the livestock, the clamping mechanism clamps the upper and lower jaws of the livestock, which can prevent the livestock from opening its mouth when filling medicine, thereby preventing the L-shaped connecting rod from being out of contact with the tongue of the livestock, and more effectively ensuring that the livestock stops filling medicine when swallowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the main structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0021] Figure 3 It is a right view structural schematic diagram of the present invention

[0022] Figure 4 It is a structural schematic diagram of the AA surface of the present invention;

[0023] Figure 5 It is a structural schematic diagram of the BB surface of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure inside the nozzle of the present invention.

[0025] Description of reference numerals:

[0026] 101. medicine tube, 102. nozzle, 103. nozzle, 104. plug, 105. through hole, 106. L-shaped connecting rod, 201. positioning retaining ring, 202. clamping sleeve, 203. spring, 3. clamping mechanism, 401. connecting rod mechanism, 402. upper clamping plate, 403. lower clamping plate, 501. first connecting rod, 502. second connecting rod, 503. driving mechanism, 601. first slide groove, 602. pressure block, 603. first slider, 701. second slider, 702. second slide groove, 801. threaded sleeve, 802. connecting sleeve, 803. third slider, 804. fourth slider, 805. third slide groove, 806. fourth slide groove, 901. first arc concave surface, 902. second arc concave surface, 10. sealing ring. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-Figure 6 , the specific implementation of the present invention is described in detail, but it should be understood that the protection scope of the present invention is not limited by the specific implementation. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] like Figure 1-Figure 6As shown, the present invention provides a drug injection device for animal husbandry and veterinary medicine, including a drug supply device, a drug pipe 101 and a nozzle 102. The drug supply device is connected with the nozzle 102 through the drug pipe 101, and the drug supply device is used to supply medicine into the drug pipe 101. It also includes: a plug 104 and an L-shaped connecting rod 106. The plug 104 is slidably connected to the nozzle 102. The plug 104 is used to block the tube hole of the drug pipe 101. The outer edge of the plug 104 is provided with a plurality of through holes 105. The tube hole of the drug pipe 101 is connected to the nozzle 102 through the plurality of through holes 105. 103 is connected; an L-shaped connecting rod 106 is hinged to the side wall of the nozzle 102, and the end of the L-shaped connecting rod 106 close to the medicine tube 101 is against the end of the plug 104 away from the medicine tube 101, and the end of the L-shaped connecting rod 106 away from the medicine tube 101 extends out of the nozzle 102 and is against the tongue of the livestock. When the livestock swallows, the tongue of the livestock will drive the distal end of the L-shaped connecting rod 106 to rotate, thereby driving the proximal end of the L-shaped connecting rod 106 to apply an extrusion force to the plug 104 toward the tube hole of the medicine tube 101, so that the tube hole of the medicine tube 101 is blocked by the plug 104.

[0029] The working principle of the above embodiment is briefly described:

[0030] When the device is used, the medicine solution is loaded into the medicine supply device, and then the nozzle 102 is inserted into the mouth of the livestock, so that the distal end of the L-shaped connecting rod 106 is against the tongue coating of the livestock's tongue. Then the medicine supply device is controlled to infuse the medicine solution into the livestock's mouth through the medicine tube 101. The pressure of the medicine solution will force the plug 104 to separate from the tube hole of the medicine tube 101, and the medicine solution will be sprayed into the livestock's mouth through the nozzle 102. The distal end of the L-shaped connecting rod 106 will also be tightly attached to the tongue coating of the livestock's tongue. When the livestock swallows, the swallowing reaction will cause the livestock's tongue to unconsciously push up. When the tongue pushes up, due to the distal end of the L-shaped connecting rod 106 The tongue of the livestock will contact with the tongue coating and drive the L-shaped connecting rod 106 to rotate. The proximal end of the L-shaped connecting rod 106 will deflect toward one end of the medicine-passing tube 101, thereby applying an extrusion force to the plug 104 toward the side of the medicine-passing tube 101, thereby driving the plug 104 to move toward the side of the medicine-passing tube 101, and the plug 104 is inserted into the tube hole of the medicine-passing tube 101, thereby blocking the tube hole of the medicine-passing tube 101, so that the nozzle 102 no longer sprays medicine.

[0031] The device for injecting medicine for animal husbandry and veterinary medicine of the present invention automatically stops injecting medicine solution when the livestock swallows the medicine, thereby preventing the livestock from choking and coughing due to not having enough time to swallow the medicine solution, ensuring the safety of the livestock injecting medicine process and avoiding medicine waste.

[0032] On the basis of the above embodiment, in order to ensure that the L-shaped connecting rod 106 can be accurately driven by the tongue of the livestock when the livestock swallows, it is ensured that the medicine injection stops when the livestock swallows.

[0033] like Figure 1-Figure 3 , Figure 5 and Figure 6 As shown, a positioning retaining ring 201 is provided on the outer edge of one end of the nozzle 102 away from the nozzle 103, and a compression sleeve 202 is slidably connected to the outer wall of the medicine tube 101 along its axial direction. A spring 203 is provided outside the compression sleeve 202, and the spring 203 is against the compression sleeve 202. The spring 203 is used to apply an elastic force toward one end of the nozzle 102 to the compression sleeve 202 to drive the compression sleeve 202 to be pressed against the lips of the livestock, so that the positioning retaining ring 201 is against the inner side of the livestock's gums, thereby making the distal end of the L-shaped connecting rod 106 fit tightly against the tongue coating of the livestock's tongue.

[0034] After the nozzle 102 is inserted into the mouth of the livestock, the depth of the medicine tube 101 inserted into the mouth of the livestock is adjusted, and the position of the clamping sleeve 202 is adjusted so that the clamping sleeve 202 is located in front of the lips of the livestock. At this time, the elastic force applied by the spring 203 to the clamping sleeve 202 drives the clamping sleeve 202 to be pressed against the lips of the livestock. The squeezing force applied by the clamping sleeve 202 to the lips of the livestock will drive the medicine tube to move to the outside of the mouth of the livestock until the inner side of the livestock's gums abuts against the positioning retaining ring 201, and the positioning retaining ring 201 applies a reverse supporting force to the livestock's gums. At this time, the position of the medicine tube 101 can be firmly fixed to ensure that the distal end of the L-shaped connecting rod 106 is closely fitted with the tongue coating of the livestock's tongue, thereby ensuring that when the livestock swallows, the L-shaped connecting rod 106 can be accurately driven by the livestock's tongue to ensure that the livestock stops injecting medicine when swallowing.

[0035] As a preferred solution, Figure 1 , Figure 3 and Figure 5 As shown, the spraying tube is provided with a clamping mechanism 3, and when the positioning retaining ring 201 abuts against the inner side of the livestock's gums and the pressing sleeve 202 presses the livestock's lips, the clamping mechanism 3 clamps the livestock's upper and lower jaws. By providing the clamping mechanism 3, when the positioning retaining ring 201 abuts against the inner side of the livestock's gums and the pressing sleeve 202 presses the livestock's lips, the clamping mechanism 3 clamps the livestock's upper and lower jaws, which can prevent the livestock from opening their mouths when injecting medicine, thereby preventing the L-shaped connecting rod 106 from being out of contact with the livestock's tongue, and ensuring the normal operation of the device.

[0036] As a preferred solution, Figure 1-Figure 3 and Figure 5As shown, the clamping mechanism 3 includes a connecting rod mechanism 401, an upper clamping plate 402 and a lower clamping plate 403. The connecting rod mechanism 401 is arranged on the side wall of the medicine tube 101, and the upper clamping plate 402 and the lower clamping plate 403 are both connected to the connecting rod mechanism 401. When the positioning retaining ring 201 abuts against the inner side of the livestock's gums and the clamping sleeve 202 presses the livestock's lips, under the drive of the connecting rod mechanism 401, the upper clamping plate 402 is pressed against the livestock's upper jaw, and the lower clamping plate 403 is pressed against the livestock's lower jaw. In the process of the clamping mechanism 3 clamping the upper and lower jaws of the livestock, the connecting rod mechanism 401 is driven to operate, and the connecting rod mechanism 401 drives the upper clamping plate 402 and the lower clamping plate 403 to operate, so that the upper clamping plate 402 and the lower clamping plate 403 are close to each other until the upper clamping plate 402 contacts the upper jaw of the livestock, and the lower clamping plate 403 contacts the lower jaw of the livestock. The upper clamping plate 402 applies a clamping force to the upper jaw of the livestock, and the lower clamping plate 403 applies a clamping force to the lower jaw of the livestock. At the same time, the clamping sleeve 202 presses the lip of the livestock against the positioning retaining ring 201, thereby preventing the entire drug filling device from shaking when the livestock is filling the medicine, ensuring that the L-shaped connecting rod 106 is always in contact with the tongue of the livestock, thereby ensuring that the livestock stops filling the medicine when swallowing.

[0037] As a preferred solution, Figure 1-Figure 5 As shown, the connecting rod mechanism 401 includes a first connecting rod 501, a second connecting rod 502 and a driving mechanism 503. The middle parts of the first connecting rod 501 and the middle parts of the second connecting rod 502 are both hinged to the outer wall of the medicine passing tube 101. The first connecting rod 501 is connected to the upper clamping plate 402 at one end close to the nozzle 102, and the second connecting rod 502 is connected to the lower clamping plate 403 at one end close to the nozzle 102. The driving mechanism 503 is arranged at the end of the medicine passing tube 101 away from the nozzle 102. The driving mechanism 503 is connected to both the end of the first connecting rod 501 away from the nozzle 102 and the end of the second connecting rod 502 away from the nozzle 102. The driving mechanism 503 is used to drive the first connecting rod 501 and the second connecting rod 502 to move so that the upper clamping plate 402 and the lower clamping plate 403 are close to each other. In the process of the clamping mechanism 3 clamping the upper and lower jaws of the livestock, the driving mechanism 503 is controlled to move, and the driving mechanism 503 drives the first connecting rod 501 away from the end of the nozzle 102 and the second connecting rod 502 away from the end of the nozzle 102 to approach each other. Since the middle part of the first connecting rod 501 and the middle part of the second connecting rod 502 are both hinged to the outer wall of the medicine tube 101, according to the lever principle, the first connecting rod 501 close to the end of the nozzle 102 and the second connecting rod 502 close to the end of the nozzle 102 approach each other, thereby driving the upper clamping plate 402 and the lower clamping plate 403 to approach each other, thereby clamping the upper and lower jaws of the livestock.

[0038] As a preferred solution, Figure 1-Figure 3 and Figure 5As shown, the first connecting rod 501 is provided with a first sliding groove 601 at one end close to the nozzle 102, the clamping sleeve 202 is provided with a pressing block 602 outside, the pressing block 602 is provided with a sliding hole along the axial direction of the medicine passing tube 101, the outer wall of the clamping sleeve 202 is slidably connected with the sliding hole of the pressing block 602, the spring 203 is against the pressing block 602 at one end away from the clamping sleeve 202, and the pressing block 602 is provided with a first slider 603, and the first slider 603 is slidably connected in the first sliding groove 601. When the first connecting rod 501 drives the upper clamping plate 402 to move toward the direction close to the lower clamping plate 403, the first sliding groove 601 drives the pressing block 602 to move toward one end close to the nozzle 102 through the first slider 603. When the driving mechanism 503 drives the first connecting rod 501 to move toward one end of the nozzle 102 and the second connecting rod 502 to move toward one end of the nozzle 102, the first connecting rod 501 drives the first slider 603 to move toward one end of the nozzle 102 through the first slide groove 601. Driven by the first slider 603, the pressing block 602 moves toward one end of the nozzle 102. The pressing block 602 drives the clamping sleeve 202 to move toward one end of the nozzle 102 through the spring 203 until the clamping sleeve 202 contacts the lip of the livestock. As the driving mechanism 503 continues to move, the first connecting rod 501 drives the first slider 603 to move toward one end of the nozzle 102. The pressing sleeve 202 is continuously driven, and the spring 203 is squeezed under the support of the livestock's lips. The elastic force applied by the spring 203 to the pressing sleeve 202 drives the pressing sleeve 202 to firmly press the livestock's lips and gums onto the positioning retaining ring 201. Combined with the upper clamping plate 402 and the lower clamping plate 403, it can further prevent the nozzle 102 from being displaced relative to the livestock's mouth when the device is used to inject medicine into the livestock, thereby further ensuring that the L-shaped connecting rod 106 is always in contact with the livestock's tongue, thereby ensuring that the device can stop injecting medicine in time when the livestock swallows.

[0039] As a preferred solution, Figure 1-3As shown, the pressing block 602 is provided with a second slider 701, the first slider 603 is provided at the upper end of the pressing block 602, the second slider 701 is provided at the lower end of the pressing block 602, and the second connecting rod 502 is provided with a second slide groove 702 at the end close to the nozzle 102, and the second slider 701 is slidably connected in the second slide groove 702. When the second connecting rod 502 drives the lower clamping plate 403 to move toward the direction close to the upper clamping plate 402, the second slide groove 702 drives the pressing block 602 to move toward the end close to the nozzle 102 through the second slider 701. When the driving device drives the end of the first connecting rod 501 close to the nozzle 102 and the end of the second connecting rod 502 close to the nozzle 102 to approach each other, the second connecting rod 502 drives the second slider 701 to move toward the end close to the nozzle 102 through the second slide groove 702, and the first slider 603 and the second slider 701 move toward the end close to the nozzle 102 at the same time. Under the drive and extrusion of the first slider 603 and the second slider 701, the pressing block 602 can be prevented from being deflected, thereby ensuring that the pressing block 602 can apply sufficient extrusion force to the compression sleeve 202 through the spring 203, thereby further preventing the nozzle 102 from being displaced relative to the mouth of the livestock when the device is used to administer medicine to the livestock, and ensuring that the device can stop administering medicine in time when the livestock swallows.

[0040] As a preferred solution, Figure 1As shown, the driving mechanism 503 includes a threaded sleeve 801 and a connecting sleeve 802, the outer wall of the medicine tube 101 is provided with an external thread, the threaded sleeve 801 is threadedly connected to the external thread, the connecting sleeve 802 is pivotally connected to the threaded sleeve 801, and a third slider 803 and a fourth slider 804 are provided on the connecting sleeve 802. The end of the first connecting rod 501 away from the nozzle 102 is provided with a third slide groove 805, and the end of the second connecting rod 502 away from the nozzle 102 is provided with a fourth slide groove 806. The third slider 803 is slidably connected in the third slide groove 805, and the fourth slider 804 is slidably connected in the fourth slide groove 806. When the threaded sleeve 801 moves toward the direction close to the nozzle 102, under the drive of the third slider 803 and the fourth slider 804, the upper clamping plate 402 and the lower clamping plate 403 approach each other. In the process of the driving mechanism 503 driving the first connecting rod 501 and the second connecting rod 502 to rotate, the threaded sleeve 801 is rotated so that the threaded sleeve 801 rotates relative to the medicine passing tube 101 and the connecting sleeve 802. Since the threaded sleeve 801 is threadedly connected to the outside of the medicine passing tube 101, the threaded sleeve 801 moves axially along the medicine passing tube 101 under the action of the external thread of the medicine passing tube 101, thereby approaching or moving away from the nozzle 102. The threaded sleeve 801 drives the connecting sleeve 802 to move axially along the medicine passing tube 101, thereby driving the third slider 803 and the fourth slider 804 to approach or move away from the nozzle 102. The third slider 803 is in the third slide groove 804 on the first connecting rod 501. 05, the fourth slider 804 slides in the fourth slide groove 806 on the second connecting rod 502, thereby driving the first connecting rod 501 and the second connecting rod 502 to rotate through the third slide groove 805 and the fourth slide groove 806, thereby clamping or loosening the upper and lower jaws of the livestock. In this process, rotating the threaded sleeve 801 can finely adjust the rotation amount of the first connecting rod 501 and the second connecting rod 502, thereby preventing the first connecting rod 501 and the second connecting rod 502 from rotating too much and clamping the mouth of the livestock, and the external thread connection between the threaded sleeve 801 and the outer wall of the medicine tube 101 has a certain self-locking property, thereby ensuring the reliability of the clamping mechanism 3 to clamp the upper and lower jaws of the livestock.

[0041] As a preferred solution, Figure 1 , Figure 2 and Figure 4As shown, the lower end surface of the upper clamping plate 402 is provided with a first arc-shaped concave surface 901, and the first arc-shaped concave surface 901 fits with the upper jaw of the livestock, and the upper end surface of the lower clamping plate 403 is provided with a second arc-shaped concave surface 902, and the second arc-shaped concave surface 902 fits with the upper jaw of the livestock. By providing the first arc-shaped concave surface 901, the contact area between the upper clamping plate 402 and the upper jaw of the livestock can be increased, so that the upper clamping plate 402 can be clamped more firmly on the upper jaw of the livestock, and the first arc-shaped concave surface 901 can limit the upper jaw of the livestock, thereby preventing the upper clamping plate 402 from being deflected when clamping. Similarly, the second arc-shaped concave surface 902 can make the lower clamping plate 403 clamped more firmly on the lower jaw of the livestock and prevent the lower clamping plate 403 from being deflected when clamping.

[0042] As a preferred solution, Figure 2 and Figure 6 As shown, a sealing ring 10 is provided at one end of the medicine tube 101 near the nozzle 102, the tube hole of the medicine tube 101 is connected with the nozzle 103 through the inner hole of the sealing ring 10, and the plug 104 blocks the tube hole of the medicine tube 101 by blocking the inner hole of the sealing ring 10. By providing the sealing ring 10, the sealing performance between the tube hole of the medicine tube 101 and the plug 104 can be improved, and when the plug 104 blocks the tube hole of the medicine tube 101, the medicine can be prevented from leaking from the tube hole of the medicine tube 101.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drug injection device for animal husbandry and veterinary medicine, comprising a drug supply device, a drug pipe (101) and a nozzle (102), wherein the drug supply device is connected to the nozzle (102) through the drug pipe (101), and the drug supply device is used to supply drugs into the drug pipe (101), characterized in that: Also includes: A plug (104) is slidably connected to the nozzle (102), the plug (104) is used to block the tube hole of the medicine tube (101), a plurality of through holes (105) are provided on the outer edge of the plug (104), and the tube hole of the medicine tube (101) is connected to the nozzle (103) of the nozzle (102) through the plurality of through holes (105); An L-shaped connecting rod (106) is hinged to the side wall of the nozzle (102); an end of the L-shaped connecting rod (106) close to the drug-passing tube (101) abuts against an end of the plug (104) away from the drug-passing tube (101); an end of the L-shaped connecting rod (106) away from the drug-passing tube (101) extends out of the nozzle (102) and abuts against the tongue of the livestock; when the livestock swallows, the tongue of the livestock drives the distal end of the L-shaped connecting rod (106) to rotate, thereby driving the proximal end of the L-shaped connecting rod (106) to apply a squeezing force to the plug (104) toward the tube hole of the drug-passing tube (101), so that the tube hole of the drug-passing tube (101) is blocked by the plug (104).

2. The drug injection device for animal husbandry and veterinary medicine according to claim 1, characterized in that: A positioning retaining ring (201) is provided at the outer edge of one end of the nozzle (102) away from the nozzle (103); a compression sleeve (202) is slidably connected to the outer wall of the medicine passage tube (101) along its axial direction; a spring (203) is provided outside the compression sleeve (202); the spring (203) abuts against the compression sleeve (202); the spring (203) is used to apply an elastic force toward one end of the nozzle (102) to the compression sleeve (202) to drive the compression sleeve (202) to be pressed against the lip of the livestock, so that the positioning retaining ring (201) abuts against the inner side of the livestock's gums, thereby making the distal end of the L-shaped connecting rod (106) fit tightly against the tongue coating of the livestock's tongue.

3. The drug injection device for animal husbandry and veterinary medicine according to claim 2, characterized in that: The spray pipe is provided with a clamping mechanism (3). When the positioning retaining ring (201) abuts against the inner side of the livestock's gums and the pressing sleeve (202) presses the livestock's lips, the clamping mechanism (3) clamps the livestock's upper and lower jaws.

4. The drug injection device for animal husbandry and veterinary medicine according to claim 3, characterized in that: The clamping mechanism (3) comprises a connecting rod mechanism (401), an upper clamping plate (402) and a lower clamping plate (403); the connecting rod mechanism (401) is arranged on the side wall of the medicine tube (101); the upper clamping plate (402) and the lower clamping plate (403) are both connected to the connecting rod mechanism (401); when the positioning retaining ring (201) abuts against the inner side of the livestock's gums and the pressing sleeve (202) presses the livestock's lips, the upper clamping plate (402) is pressed against the livestock's upper jaw and the lower clamping plate (403) is pressed against the livestock's lower jaw under the drive of the connecting rod mechanism (401).

5. The drug injection device for animal husbandry and veterinary medicine according to claim 4, characterized in that: The connecting rod mechanism (401) comprises a first connecting rod (501), a second connecting rod (502) and a driving mechanism (503); the middle part of the first connecting rod (501) and the middle part of the second connecting rod (502) are both hinged to the outer wall of the medicine passage tube (101); the end of the first connecting rod (501) close to the nozzle (102) is connected to the upper clamping plate (402); the end of the second connecting rod (502) close to the nozzle (102) is connected to the lower clamping plate (403); The driving mechanism (503) is arranged at the end of the medicine tube (101) away from the nozzle (102), and the driving mechanism (503) is connected to the end of the first connecting rod (501) away from the nozzle (102) and the end of the second connecting rod (502) away from the nozzle (102). The driving mechanism (503) is used to drive the first connecting rod (501) and the second connecting rod (502) to move so that the upper clamping plate (402) and the lower clamping plate (403) are close to each other.

6. The drug injection device for animal husbandry and veterinary medicine according to claim 5, characterized in that: A first sliding groove (601) is provided at one end of the first connecting rod (501) close to the nozzle (102), a pressing block (602) is provided outside the pressing sleeve (202), and the pressing block (602) is provided with a sliding hole along the axial direction of the medicine passing tube (101), the outer wall of the pressing sleeve (202) is slidably connected to the sliding hole of the pressing block (602), the end of the spring (203) away from the pressing sleeve (202) is against the pressing block (602), and a first sliding block (603) is provided on the pressing block (602), and the first sliding block (603) is slidably connected in the first sliding groove (601), when the first connecting rod (501) drives the upper clamping plate (402) to move in a direction close to the lower clamping plate (403), the first sliding groove (601) drives the pressing block (602) to move toward one end close to the nozzle (102) through the first sliding block (603).

7. The drug injection device for animal husbandry and veterinary medicine according to claim 6, characterized in that: The pressing block (602) is provided with a second slider (701), the first slider (603) is provided at the upper end of the pressing block (602), the second slider (701) is provided at the lower end of the pressing block (602), and a second slide groove (702) is provided at the end of the second connecting rod (502) close to the nozzle (102), and the second slider (701) is slidably connected in the second slide groove (702). When the second connecting rod (502) drives the lower clamping plate (403) to move toward the direction close to the upper clamping plate (402), the second slide groove (702) drives the pressing block (602) to move toward the end close to the nozzle (102) through the second slider (701).

8. The drug injection device for animal husbandry and veterinary medicine according to claim 5, characterized in that: The driving mechanism (503) comprises a threaded sleeve (801) and a connecting sleeve (802); an outer wall of the medicine passage tube (101) is provided with an external thread; the threaded sleeve (801) is threadedly connected to the external thread; the connecting sleeve (802) is pivotally connected to the threaded sleeve (801); a third slider (803) and a fourth slider (804) are provided on the connecting sleeve (802); a third slide groove (805) is provided at one end of the first connecting rod (501) away from the nozzle (102); A fourth slide groove (806) is provided at one end of the second connecting rod (502) away from the nozzle (102), the third slider (803) is slidably connected in the third slide groove (805), and the fourth slider (804) is slidably connected in the fourth slide groove (806). When the threaded sleeve (801) moves toward the nozzle (102), the upper clamping plate (402) and the lower clamping plate (403) are driven by the third slider (803) and the fourth slider (804) to approach each other.

9. The drug injection device for animal husbandry and veterinary medicine according to claim 4, characterized in that: The lower end surface of the upper clamping plate (402) is provided with a first arc-shaped concave surface (901), and the first arc-shaped concave surface (901) fits with the upper jaw of the livestock. The upper end surface of the lower clamping plate (403) is provided with a second arc-shaped concave surface (902), and the second arc-shaped concave surface (902) fits with the upper jaw of the livestock.

10. The drug injection device for animal husbandry and veterinary medicine according to claim 1, characterized in that: A sealing ring (10) is provided at one end of the medicine passage tube (101) close to the nozzle (102); the tube hole of the medicine passage tube (101) is connected to the nozzle (103) through the inner hole of the sealing ring (10); and the plug (104) blocks the tube hole of the medicine passage tube (101) by blocking the inner hole of the sealing ring (10).

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