阅读说明：本技术 一种动物医用喂药装置 (Medical medicine feeding device for animals ) 是由 樊汶樵 *** 姜玉松 张美霞 胡靖� 蔡明成 孙翰昌 于 2019-11-22 设计创作，主要内容包括：本发明公开了一种动物医用喂药装置,其特征在于：包括第一药瓶、注射筒、活塞杆、活塞、调节套、左连接座、右连接座、阀芯及喂药管；该左连接座与注射筒左端固接,该左连接座内具有阀芯孔,该阀芯孔内壁上设有注射筒连接孔、喂药管连接孔和第一药瓶连接孔；该右连接座与注射筒右端固接,该活塞杆左端与活塞连接,该调节套位于右连接座右侧且与该活塞杆螺纹连接；该第一药瓶连接孔外端处设置第一药瓶瓶口接头,该第一药瓶的瓶口朝下且与第一药瓶瓶口接头连接；该阀芯与阀芯孔可活动连接。本发明可用作动物医疗用喂药,且可实现多次注射使用,可避免频繁加药液,同时能保证性能稳定可靠。(The invention discloses a medical animal medicine feeding device, which is characterized in that: comprises a first medicine bottle, an injection tube, a piston rod, a piston, an adjusting sleeve, a left connecting seat, a right connecting seat, a valve core and a medicine feeding pipe; the left connecting seat is fixedly connected with the left end of the injection tube, a valve core hole is arranged in the left connecting seat, and an injection tube connecting hole, a medicine feeding tube connecting hole and a first medicine bottle connecting hole are arranged on the inner wall of the valve core hole; the right connecting seat is fixedly connected with the right end of the injection tube, the left end of the piston rod is connected with the piston, and the adjusting sleeve is positioned on the right side of the right connecting seat and is in threaded connection with the piston rod; a first medicine bottle mouth joint is arranged at the outer end of the first medicine bottle connecting hole, and the mouth of the first medicine bottle faces downwards and is connected with the first medicine bottle mouth joint; the valve core is movably connected with the valve core hole. The invention can be used for medicine feeding of animals for medical treatment, can realize multiple injection, can avoid frequent medicine adding and can ensure stable and reliable performance.)

1. A medical medicine feeding device for animals is characterized in that: comprises a first medicine bottle (1), an injection tube (2), a piston rod (3), a piston (4), an adjusting sleeve (5), a left connecting seat (6), a right connecting seat (7), a valve core (8) and a medicine feeding pipe (9);

the left connecting seat (6) is fixedly connected with the left end of the injection tube (2), a valve core hole (6-1) is arranged in the left connecting seat (6), and an injection tube connecting hole (6-2), a medicine feeding tube connecting hole (6-3) and a first medicine bottle connecting hole (6-4) are arranged on the inner wall of the valve core hole (6-1);

the right connecting seat (7) is fixedly connected with the right end of the injection tube (2), and a piston rod through hole (7-1) is arranged on the right connecting seat (7);

the piston (4) is arranged in the injection cylinder (2), the middle part of the piston rod (3) is connected with a piston rod through hole (7-1) in a sliding way, the left end of the piston rod (3) is connected with the piston (4), and the adjusting sleeve (5) is positioned on the right side of the right connecting seat (7) and is in threaded connection with the piston rod (3);

a first medicine bottle mouth joint (10) is arranged at the outer end of the first medicine bottle connecting hole (6-4), and the mouth of the first medicine bottle (1) faces downwards and is connected with the first medicine bottle mouth joint (10);

the valve core (8) is movably connected with the valve core hole (6-1) and meets the following conditions:

when the valve core (8) is displaced to a first working position, the injection tube connecting hole (6-2) is communicated with the medicine feeding pipe connecting hole (6-3), the injection tube connecting hole (6-2) is not communicated with the first medicine bottle connecting hole (6-4), and the first medicine bottle connecting hole (6-4) is not communicated with the medicine feeding pipe connecting hole (6-3);

when the valve core (8) moves to the second working position, the injection tube connecting hole (6-2) is not communicated with the medicine feeding pipe connecting hole (6-3), the injection tube connecting hole (6-2) is communicated with the first medicine bottle connecting hole (6-4), and the first medicine bottle connecting hole (6-4) is not communicated with the medicine feeding pipe connecting hole (6-3).

2. A medical animal feeding device according to claim 1, wherein: a second medicine bottle connecting hole (6-5) is formed in the inner wall of the valve core hole (6-1);

a second medicine bottle connecting pipe (11) is arranged in the first medicine bottle (1), the outer bottom surface of the first medicine bottle (1) is provided with a concave bottle opening inserting hole (1-1), a bottle stopper needle head (12) is arranged in the bottle opening inserting hole (1-1), one end of the second medicine bottle connecting pipe (11) is connected with the bottle stopper needle head (12), and the other end of the second medicine bottle connecting pipe (11) is connected with the outer end of the second medicine bottle connecting hole (6-5);

when the valve core (8) is displaced to a first working position, the injection cylinder connecting hole (6-2) is not communicated with the second medicine bottle connecting hole (6-5), and the second medicine bottle connecting hole (6-5) is not communicated with the medicine feeding pipe connecting hole (6-3);

when the valve core (8) is displaced to a second working position, the injection cylinder connecting hole (6-2) is communicated with a second medicine bottle connecting hole (6-5), and the second medicine bottle connecting hole (6-5) is not communicated with the medicine feeding pipe connecting hole (6-3).

3. A medical animal feeding device according to claim 1, wherein: a first working position hole (8-1) and a second working position hole (8-2) are formed in the valve core (8);

the first working position hole (8-1) and the second working position hole (8-2) are distributed at intervals along the axial direction of the valve core (8).

4. A medical animal feeding device according to claim 3, wherein: the shape of the cross section of the valve core (8) is non-circular, and the shape of the cross section of the valve core hole (6-1) is matched with the shape of the cross section of the valve core (8).

5. A medical animal feeding device according to any of claims 1 to 4, wherein: also comprises an operating mechanism (13);

the operating mechanism (13) comprises a left handle (13-1), a right handle (13-2), a return torsion spring (13-3) and a sliding seat (13-4), the left handle (13-1) and the right handle (13-2) are oppositely arranged left and right, the upper end of the left handle (13-1) is fixedly connected with the right connecting seat (7), the lower end of the left handle (13-1) is hinged with the lower end of the right handle (13-2) through a rotating shaft (13-5), the return torsion spring (13-3) is sleeved on the rotating shaft (13-5), one end of the return torsion spring (13-3) is connected with the left handle (13-1), the other end of the return torsion spring (13-3) is connected with the right handle (13-2), the sliding seat (13-4) is fixedly arranged at the right end of the piston rod (3), an arc-21 is arranged on the left side of the right handle (13-2), the sliding seat (13-4) is in sliding fit with the arc-shaped sliding groove (13-21).

6. A medical animal feeding device according to claim 5, wherein: the sliding seat (13-4) is provided with two sliding pins (13-41), and the two sliding pins (13-41) are symmetrically distributed in the front and back direction;

the two arc-shaped sliding chutes (13-21) are symmetrically distributed in the front and back direction;

the two sliding pins (13-41) are respectively in sliding fit with the two arc-shaped sliding grooves (13-21).

7. A medical animal feeding device according to claim 2, wherein: the first medicine bottle (1) comprises a bottle body (101), a bottle opening (102), a bottom cover (103) and a cross-shaped inner support (104), wherein the bottle opening (102) is formed in one end of the bottle body (101), the other end of the bottle body (101) is opened and is detachably connected with the bottom cover (103), an inwards concave bottle opening insertion hole (1-1) is formed in the outer bottom surface of the bottom cover (103), the cross-shaped inner support (104) is fixedly arranged in the bottle opening (102), a through hole (105) is formed in the center of the cross-shaped inner support (104), the other end of the second medicine bottle connecting pipe (11) is connected with the inner end of the through hole (105), and the outer end of the through hole (105) is connected with the outer end of the second medicine bottle connecting hole (6-5.

Technical Field

The invention belongs to a medical medicine feeding device for animals.

Background

In the society at present, animal husbandry, pet industry and the like all belong to mainstream industries. Regardless of the various aspects of animal breeding, pet care, and the like, there is a need to feed animals with medication. In the case of solid pills, administration is usually carried out by mixing them in feed, while in the case of liquid drug-specific devices, administration is carried out on animals.

The existing medicine feeding device is found to have the following defects in use and is analyzed as follows:

firstly, when medicine feeding is carried out at present, when the medicine feeding of one animal is finished and then the next animal is fed, medicine needs to be charged again, so that when the number of animals needing medicine feeding is large (pastures, poultry farms and other places), the problems of frequent repeated liquid feeding, large workload and low efficiency exist;

secondly, the traditional medicine feeding device has the problems that the models of the medicine feeding devices are different according to the medicine feeding amount, the medicine feeding amount of the medicine feeding devices is not adjustable, the corresponding models need to be selected, the use is inconvenient, and the requirements of individuation and multifunctional performance cannot be met;

thirdly, the existing medicine feeding device can only feed one kind of medicine liquid at a time, and when two different kinds of medicine liquid need to be fed, the medicine feeding device needs to be operated separately.

Disclosure of Invention

In order to overcome one or more of the above-mentioned deficiencies in the prior art, the present invention provides a medical animal feeding device.

In order to achieve the purpose, the invention provides a medical animal medicine feeding device, which is characterized in that: comprises a first medicine bottle (1), an injection tube (2), a piston rod (3), a piston (4), an adjusting sleeve (5), a left connecting seat (6), a right connecting seat (7), a valve core (8) and a medicine feeding pipe (9);

the left connecting seat (6) is fixedly connected with the left end of the injection tube (2), a valve core hole (6-1) is arranged in the left connecting seat (6), and an injection tube connecting hole (6-2), a medicine feeding tube connecting hole (6-3) and a first medicine bottle connecting hole (6-4) are arranged on the inner wall of the valve core hole (6-1);

the right connecting seat (7) is fixedly connected with the right end of the injection tube (2), and a piston rod through hole (7-1) is arranged on the right connecting seat (7);

the piston (4) is arranged in the injection cylinder (2), the middle part of the piston rod (3) is connected with a piston rod through hole (7-1) in a sliding way, the left end of the piston rod (3) is connected with the piston (4), and the adjusting sleeve (5) is positioned on the right side of the right connecting seat (7) and is in threaded connection with the piston rod (3);

a first medicine bottle mouth joint (10) is arranged at the outer end of the first medicine bottle connecting hole (6-4), and the mouth of the first medicine bottle (1) faces downwards and is connected with the first medicine bottle mouth joint (10);

the valve core (8) is movably connected with the valve core hole (6-1) and meets the following conditions:

when the valve core (8) is displaced to a first working position, the injection tube connecting hole (6-2) is communicated with the medicine feeding pipe connecting hole (6-3), the injection tube connecting hole (6-2) is not communicated with the first medicine bottle connecting hole (6-4), and the first medicine bottle connecting hole (6-4) is not communicated with the medicine feeding pipe connecting hole (6-3);

when the valve core (8) moves to the second working position, the injection tube connecting hole (6-2) is not communicated with the medicine feeding pipe connecting hole (6-3), the injection tube connecting hole (6-2) is communicated with the first medicine bottle connecting hole (6-4), and the first medicine bottle connecting hole (6-4) is not communicated with the medicine feeding pipe connecting hole (6-3).

By adopting the technical scheme, after the medicine feeding pipe (9) extends into the oral cavity of an animal, the valve core (8) is displaced to the first working position, and the medicine feeding pipe can realize medicine feeding by enabling the medicine liquid path in the injection cylinder (2) to flow out of the medicine feeding pipe (9) after passing through the medicine feeding pipe connecting hole (6-3) when the injection cylinder connecting hole (6-2) is communicated with the medicine feeding pipe connecting hole (6-3) and the piston rod (3) is operated to push the piston (4) to move to the left in the injection cylinder (2).

Wherein, because the adjusting sleeve (5) and the piston rod (3) are displaced leftwards together, when the adjusting sleeve (5) is in blocking contact with the right connecting seat (7) after being displaced leftwards, the piston rod (3) and the piston (4) are limited to move leftwards, and therefore, the displacement stroke length of the piston (4) is directly related to the axial position of the adjusting sleeve (5) on the piston rod (3). If the feeding dosage is the same when feeding a certain animal of the same type, the adjusting sleeve (5) can be adjusted to the position corresponding to the dosage on the piston rod (3) and then kept unchanged when feeding the animal of the same type, so that the feeding dosage is the same fixed value every time, and the consistency of the feeding dosage when feeding the animal of the same type can be ensured.

When the medicine feeding amount of the animals is changed, the secondary adjusting sleeve (5) can be adjusted to the position, on the piston rod (3), of the current animal required dosage, and the position of the adjusting sleeve (5) on the piston rod (3) can be changed, so that the change adjustment of the medicine feeding amount is realized. Therefore, the device has adjustable medicine feeding measurement, meets the requirements of individuation and multifunction, and has simple adjustment and convenient operation.

When the valve core (8) moves to the first working position, the injection tube connecting hole (6-2) is not communicated with the first medicine bottle connecting hole (6-4), and the first medicine bottle connecting hole (6-4) is not communicated with the medicine feeding pipe connecting hole (6-3), so that the liquid medicine in the injection tube (2) cannot flow back to the first medicine bottle (1) after being extruded, and meanwhile, the liquid medicine in the first medicine bottle (1) cannot flow into the first medicine bottle connecting hole (6-4) and the medicine feeding pipe connecting hole (6-3), so that the liquid medicine in the first medicine bottle (1) is prevented from flowing outwards.

In addition, when the valve core (8) is switched to the second working position when the next animal is fed with the medicine, the injection tube connecting hole (6-2) is not communicated with the medicine feeding pipe connecting hole (6-3), the injection tube connecting hole (6-2) is communicated with the first medicine bottle connecting hole (6-4), and the first medicine bottle connecting hole (6-4) is not communicated with the medicine feeding pipe connecting hole (6-3); when the piston rod (3) pushes the piston (4) to move rightwards in the injection tube (2) after the operation, the liquid medicine in the first medicine bottle (1) can be pumped into the injection tube (2) through the first medicine bottle connecting hole (6-4) and the injection tube connecting hole (6-2), when the piston (4) moves rightwards and then is in blocking contact with the right connecting seat (7), the piston (4) is limited to move rightwards, the right displacement of the piston (4) is fixed, and therefore the quantitative liquid medicine in the first medicine bottle (1) is pumped in the injection tube (2) to feed next quantitative medicine.

When the valve core (8) is displaced to the first working position, the piston rod (3) can be pushed to the bottom to extrude and feed the medicine, so that quantitative medicine feeding is realized; when the valve core (8) is switched to the second working position, the piston rod (3) can be pushed to the right to the bottom to suck the liquid medicine in the first medicine bottle (1) into the injection tube (2) so as to realize quantitative medicine supplement, and the first medicine bottle (1) stores a large amount of liquid medicine, so that the operation can be repeated, the medicine can be fed for multiple times, frequent liquid adding can be avoided, and the automatic medicine feeding device is particularly suitable for feeding the medicines with large number of animals (in places such as pastures and poultry farms), the workload can be greatly reduced, and the medicine feeding efficiency can be improved.

When the valve core (8) is switched to the second working position, the injection tube connecting hole (6-2) is not communicated with the medicine feeding tube connecting hole (6-3), so that the inner cavity of an animal in the medicine feeding tube (9) can be prevented from being sucked, impurities in the inner cavity of the animal are prevented from being sucked into the medicine feeding tube (9), the valve core (8), the injection tube (2) and the like, the medicine feeding tube (9), the valve core (8), the injection tube (2) and the like can be prevented from being blocked, or the working performance, reliability, stability and service life are reduced. Because the first medicine bottle connecting hole (6-4) is not communicated with the medicine feeding pipe connecting hole (6-3), the medicine liquid in the first medicine bottle (1) can be prevented from flowing into the medicine feeding pipe connecting hole (6-3) so as to prevent the medicine liquid in the first medicine bottle (1) from flowing outwards.

Furthermore, a second medicine bottle connecting hole (6-5) is formed in the inner wall of the valve core hole (6-1); a second medicine bottle connecting pipe (11) is arranged in the first medicine bottle (1), the outer bottom surface of the first medicine bottle (1) is provided with a concave bottle opening inserting hole (1-1), a bottle stopper needle head (12) is arranged in the bottle opening inserting hole (1-1), one end of the second medicine bottle connecting pipe (11) is connected with the bottle stopper needle head (12), and the other end of the second medicine bottle connecting pipe (11) is connected with the outer end of the second medicine bottle connecting hole (6-5); when the valve core (8) is displaced to a first working position, the injection cylinder connecting hole (6-2) is not communicated with the second medicine bottle connecting hole (6-5), and the second medicine bottle connecting hole (6-5) is not communicated with the medicine feeding pipe connecting hole (6-3); when the valve core (8) is displaced to a second working position, the injection cylinder connecting hole (6-2) is communicated with a second medicine bottle connecting hole (6-5), and the second medicine bottle connecting hole (6-5) is not communicated with the medicine feeding pipe connecting hole (6-3).

Before medicine feeding, the second mouth of the second medicine bottle 15 can be inserted into the mouth insertion hole (1-1), and the stopper needle (12) can be inserted into the stopper (15-1) of the second medicine bottle (15).

When the valve core (8) is switched to the second working position, the liquid medicine in the first medicine bottle (1) can be pumped into the injection tube (2) when the piston rod (3) can be pushed to the right, and the liquid medicine in the second medicine bottle (15) can enter the injection tube (2) from the bottle stopper needle head (12), the second medicine bottle connecting pipe (11), the second medicine bottle connecting hole (6-5) and the injection tube connecting hole (6-2) in sequence, so that the liquid medicine in the first medicine bottle (1) and the liquid medicine in the second medicine bottle (15) can be simultaneously pumped into the injection tube (2), and the drift diameter ratio is a fixed value, so that the simultaneous medicine supplementation of the two liquid medicines can be realized and the mixture can be pumped into the injection tube (2) according to a certain proportion; when the valve core (8) is displaced to the first working position, the piston rod (3) can be pushed to the bottom to extrude and feed the mixed liquid medicine in the injection tube (2) so as to realize the quantitative feeding of the mixed liquid medicine; because first medicine bottle (1) and second medicine bottle (15) save a large amount of liquid medicines, therefore can repeat above-mentioned operation to realize the use of medicine feed many times, can avoid frequent liquid feeding, be particularly useful for when the medicine feed of animal quantity is big (place such as pasture, birds field), but greatly reduced work load just improves medicine feed efficiency, can realize two kinds of liquid medicines simultaneously according to certain mixture back in addition, do not need the part operation.

When the valve core (8) is moved to the first working position and then the piston rod (3) is pushed to the left for medicine feeding, the injection tube connecting hole (6-2) is not communicated with the second medicine bottle connecting hole (6-5), and the second medicine bottle connecting hole (6-5) is not communicated with the medicine feeding pipe connecting hole (6-3), so that the medicine liquid in the injection tube (2) cannot flow back into the second medicine bottle (15) after being extruded, and meanwhile, the medicine liquid in the second medicine bottle (15) cannot flow into the medicine feeding pipe connecting hole (6-3) so as to prevent the medicine liquid in the second medicine bottle (15) from flowing outwards; when the valve core (8) is switched to the second working position and then the piston rod (3) is pushed to the right for medicine feeding, the second medicine bottle connecting hole (6-5) is not communicated with the medicine feeding pipe connecting hole (6-3), so that the medicine liquid in the second medicine bottle (15) can be prevented from flowing into the medicine feeding pipe connecting hole (6-3), and the medicine liquid in the second medicine bottle (15) is prevented from flowing outwards.

Preferably, a first working position hole (8-1) and a second working position hole (8-2) are formed in the valve core (8); the first working position hole (8-1) and the second working position hole (8-2) are distributed at intervals along the axial direction of the valve core (8). When the valve core (8) is shifted to axially displace in the valve core hole (6-1), the first working position and the second working position can be switched with each other, and the operation is simple.

Furthermore, the shape of the cross section of the valve core (8) is non-circular, and the shape of the cross section of the valve core hole (6-1) is matched with the shape of the cross section of the valve core (8). Therefore, when the valve core (8) is shifted in the axial direction of the valve core hole (6-1), the valve core (8) can be prevented from rotating in the shifting process, so that the first working position hole (8-1) and the second working position hole (8-2) can not rotate and change directions, and the accuracy of the working positions in place during mutual switching is further ensured.

Further, an operating mechanism (13) is also included; the operating mechanism (13) comprises a left handle (13-1), a right handle (13-2), a return torsion spring (13-3) and a sliding seat (13-4), the left handle (13-1) and the right handle (13-2) are oppositely arranged left and right, the upper end of the left handle (13-1) is fixedly connected with the right connecting seat (7), the lower end of the left handle (13-1) is hinged with the lower end of the right handle (13-2) through a rotating shaft (13-5), the return torsion spring (13-3) is sleeved on the rotating shaft (13-5), one end of the return torsion spring (13-3) is connected with the left handle (13-1), the other end of the return torsion spring (13-3) is connected with the right handle (13-2), the sliding seat (13-4) is fixedly arranged at the right end of the piston rod (3), an arc-21 is arranged on the left side of the right handle (13-2), the sliding seat (13-4) is in sliding fit with the arc-shaped sliding groove (13-21). When in operation, the left handle (13-1) and the right handle (13-2) can be held by hands. When the left handle (13-1) and the right handle (13-2) are tightened, the left handle (13-1) is fixed, the lower end of the right handle (13-2) rotates, the upper part of the right handle (13-2) swings leftwards, the arc-shaped chute (13-21) of the right handle (13-2) is matched with the sliding seat (13-4) to slide, and the sliding seat (13-4) can move leftwards to feed medicine. When the left handle (13-1) and the right handle (13-2) are loosened, the left handle (13-1) is fixed due to reset torsion provided by the reset torsion spring (13-3), the lower end of the right handle (13-2) can reset and rotate, the upper part of the right handle (13-2) swings rightwards, the arc-shaped sliding groove (13-21) of the right handle (13-2) slides in a matched manner with the sliding seat (13-4), and the sliding seat (13-4) can move rightwards to supplement the medicine in the injection cylinder (2).

Furthermore, the sliding seat (13-4) is provided with two sliding pins (13-41), and the two sliding pins (13-41) are symmetrically distributed in the front and back direction; the two arc-shaped sliding chutes (13-21) are symmetrically distributed in the front and back direction; the two sliding pins (13-41) are respectively in sliding fit with the two arc-shaped sliding grooves (13-21). As the two sliding pins (13-41) of the sliding seat (13-4) are respectively in sliding fit with the two arc-shaped sliding grooves (13-21) of the right handle (13-2), the sliding seat (13-4) can be prevented from derailing during sliding movement, and the long-term stability and reliability of the operation are improved.

Preferably, the first medicine bottle (1) comprises a bottle body (101), a bottle opening (102), a bottom cover (103) and a cross-shaped inner support (104), wherein the bottle opening (102) is formed in one end of the bottle body (101), the other end of the bottle body (101) is opened and is detachably connected with the bottom cover (103), an inwards concave bottle opening insertion hole (1-1) is formed in the outer bottom surface of the bottom cover (103), the cross-shaped inner support (104) is fixedly arranged in the bottle opening (102), a through hole (105) is formed in the center of the cross-shaped inner support (104), the other end of the second medicine bottle connecting pipe (11) is connected with the inner end of the through hole (105), and the outer end of the through hole (105) is connected with the outer end of the second medicine bottle connecting hole (6-5). When the liquid medicine in the first medicine bottle (1) is used up or is insufficient, the medicine feeding operation can be continued by firstly detaching the bottom cover (103), then filling the bottle body (101) with the liquid medicine, and then mounting the bottom cover (103). When the taper pipe (106) is matched and connected with the second medicine bottle connecting hole (6-5), the leakage of the liquid medicine can be avoided.

The invention has the beneficial effects that:

firstly, the invention can be used for medicine feeding for medical treatment of animals, can realize multiple injection and use, can avoid frequent adding of liquid medicine and can ensure stable and reliable performance;

secondly, the adjusting sleeve is in threaded fit with the piston rod, when the dosage of the animal fed is changed, the adjusting sleeve can be adjusted to the current dosage position required by the animal on the piston rod, and the position of the adjusting sleeve on the piston rod can be changed, so that the dosage can be changed and adjusted; therefore, the device has adjustable medicine feeding metering, meets the requirements of individuation and multifunction, and has simple adjustment and convenient operation;

thirdly, when the valve core is displaced to the first working position, the connecting hole of the injection tube is not communicated with the connecting hole of the first medicine bottle, and the connecting hole of the first medicine bottle is not communicated with the connecting hole of the medicine feeding pipe, so that the liquid medicine in the injection tube cannot flow back to the first medicine bottle after being extruded, and meanwhile, the liquid medicine in the first medicine bottle cannot flow into the connecting hole of the first medicine bottle and the connecting hole of the medicine feeding pipe, so that the liquid medicine in the first medicine bottle is prevented from flowing outwards.

Fourthly, when the valve core is displaced to the first working position, the piston rod can be pushed to the bottom leftwards to extrude and feed the medicine, so that quantitative medicine feeding is realized; when the valve core switching position is moved to the second working position, the piston rod can be pushed to the bottom right to draw the liquid medicine in the first medicine bottle into the injection tube so as to realize quantitative medicine supplement.

Fifthly, when the valve core switching position is shifted to the second working position, the connecting hole of the injection tube is not communicated with the connecting hole of the medicine feeding tube, so that the inner cavity of the medicine feeding tube can be prevented from being sucked, impurities in the oral cavity are prevented from being sucked into the medicine feeding tube, the valve core, the injection tube and the like, the medicine feeding tube, the valve core, the injection tube and the like can be prevented from being blocked, or the working performance, the reliability, the stability and the service life are reduced. Because the first medicine bottle connecting hole is not communicated with the medicine feeding pipe connecting hole, the liquid medicine in the first medicine bottle can be prevented from flowing into the medicine feeding pipe connecting hole, and the liquid medicine in the first medicine bottle is prevented from flowing outwards.

Sixth, when the valve core switching position is shifted to the second working position, the piston rod can be pushed to the right, so that the liquid medicine in the first medicine bottle can be sucked into the injection tube, and meanwhile, the liquid medicine in the second medicine bottle can enter the injection tube from the bottle stopper needle head, the second medicine bottle connecting pipe, the second medicine bottle connecting hole and the injection tube connecting hole in sequence; because the liquid medicine in the first medicine bottle and the liquid medicine in the second medicine bottle are simultaneously pumped into the injection tube, and the drift diameter ratio is a fixed value, the two liquid medicines can be simultaneously supplemented and pumped into the injection tube according to a certain proportion for mixing; in addition, when the valve core is displaced to the first working position, the piston rod can be pushed to the bottom to extrude and feed the mixed liquid medicine in the injection tube, so that the quantitative feeding of the mixed liquid medicine is realized; because first medicine bottle and the storage of second medicine bottle are a large amount of liquid medicines, therefore can repeat above-mentioned operation to realize the use of medicine feed many times, can avoid frequent liquid feeding, when being particularly useful for local medicine feeds such as the large pasture of animal quantity, poultry farm, but greatly reduced work load just improves medicine feed efficiency, can realize two kinds of liquid medicines simultaneously medicine feeds according to certain mixture moreover, do not need the part operation.

Seventh, when the piston rod is pushed to the left for medicine feeding after the valve core is moved to the first working position, the connecting hole of the injection tube is not communicated with the connecting hole of the second medicine bottle, and the connecting hole of the second medicine bottle is not communicated with the connecting hole of the medicine feeding tube, so that the medicine liquid in the injection tube cannot flow back into the second medicine bottle after being extruded, and meanwhile, the medicine liquid in the second medicine bottle cannot flow into the connecting hole of the medicine feeding tube, so that the medicine liquid in the second medicine bottle is prevented from flowing outwards; when the valve core switching position is moved to the second working position and then the piston rod is pushed to the right for medicine feeding, the second medicine bottle connecting hole is not communicated with the medicine feeding pipe connecting hole, so that the liquid medicine in the second medicine bottle can be prevented from flowing into the medicine feeding pipe connecting hole, and the liquid medicine in the second medicine bottle is prevented from flowing outwards.

Eighth, the cross section of the valve core is non-circular, and the cross section of the valve core hole is matched with the cross section of the valve core; when the valve core is shifted to axially displace in the valve core hole, the valve core can be prevented from rotating during displacement, so that the first working position hole and the second working position hole can not rotate and change directions, and the accuracy of the working positions in place during mutual switching is further ensured. Preferably, the valve core is provided with a flat surface.

Ninth, when the liquid medicine in the first medicine bottle is used up or is insufficient, the bottom cover can be detached firstly, then the bottle body is filled with the liquid medicine, and the medicine feeding operation is continued after the bottom cover is mounted, so that the medicine supplementing and adding liquid do not need to be integrally detached, and the operation is simple;

tenth, the second medicine bottle is connected with the second medicine bottle connecting hole through the bottle stopper needle, the medicine bottle connecting pipe, the through hole, the taper pipe and the second medicine bottle connecting hole in sequence to form a working pipeline which is independent and sealed with the first medicine bottle, so that the phenomenon that the liquid medicine in the second medicine bottle is mixed in advance before being pumped into the injection tube to cause the change of the mixing ratio of the two liquid medicines and further cause the problem that the two liquid medicines cannot be mixed according to the set mixing to affect the medicine feeding precision can be avoided.

Drawings

Fig. 1 is a working state diagram of the invention when medicine is fed after the valve core is displaced to the first working position.

Fig. 2 is an enlarged view at C in fig. 1.

Fig. 3 is an operating state diagram of the invention when medicine is drawn after the valve core is displaced to the second operating position.

Fig. 4 is an enlarged view of fig. 3 at D.

Figure 5 is a perspective view of the present invention (when the second vial is not installed).

Fig. 6 is a cross-sectional view of a first vial.

Fig. 7 is a perspective view (i) of the first vial.

Fig. 8 is a perspective view (two) of the first vial.

Fig. 9 is a schematic view of the structure of the spool.

Fig. 10 is a view from the direction of a-a in fig. 9.

Fig. 11 is a view from the direction of B-B in fig. 9.

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings: