CN118615050B - A livestock medicine drencher - Google Patents

Abstract

The present invention relates to the technical field of veterinary instruments, and specifically to a livestock drencher, comprising a drencher barrel with an axis extending in the front-to-back direction, a sealing plug provided in the drencher barrel, a push rod connected to the rear side of the sealing plug, the rear end of the push rod extending to the outside of the drencher barrel, a liquid medicine outlet provided at the front end of the drencher barrel, and the livestock drencher also comprises a flow regulating mechanism, the flow regulating mechanism comprising a spiral elastic plate coaxially arranged in the drencher barrel, the spiral elastic plate can shrink under the impact of the liquid medicine in the drencher barrel to reduce the pitch of the spiral elastic plate, thereby reducing the speed of the liquid medicine outlet spraying outward. The present invention can solve the technical problems existing in the prior art that it is difficult to control the outflow speed of the liquid medicine in the drencher, which easily causes stress reactions in livestock, and it is easy for the liquid medicine to be excessive in the mouth of livestock, thereby easily choking the livestock and endangering the health of the livestock.

Description

A livestock medicine drencher

Technical Field

The invention relates to the technical field of veterinary instruments, in particular to a livestock medicine drencher.

Background Art

As a veterinary instrument, the livestock medicine drencher is used to insert into the mouth of livestock to dredge medicine for the livestock. For example, the authorization announcement number CN113229989B discloses a veterinary medicine mixing drenching device, which includes a drenching barrel and a sealing plug arranged in the drenching barrel, a push rod is fixedly connected to the sealing plug, one end of the push rod extends to the outside of the drenching barrel, and a drenching nozzle is arranged at one end of the drenching barrel. When in use, the drenching nozzle is inserted into the mouth of the livestock, and then the push rod is pushed to move the sealing plug, so that the liquid medicine in the drenching barrel is injected into the mouth of the livestock through the drenching nozzle.

The livestock drenchers in the prior art are usually injected manually, and the strength and speed of manual operation are difficult to control, resulting in uneven injection speed. When the injection speed is high, the impact force of the liquid medicine is large and will irritate the throat of the livestock. It will also cause the liquid medicine to accumulate in the throat of the livestock, thereby causing a stress reaction in the livestock. In addition, the struggle of the livestock during the drenching will cause the livestock to be easily choked and cause lung diseases, thereby endangering the health of the livestock.

Summary of the invention

In order to overcome the deficiencies of the prior art, the present invention proposes a livestock medicine injector to solve the technical problem in the prior art that it is difficult to control the injection speed during injection and the livestock may be choked easily.

A livestock medicine drencher of the present invention adopts the following technical solution:

A livestock drencher comprises a drencher barrel whose axis extends in a front-to-back direction, a sealing plug being arranged in the drencher barrel, a push rod being connected to the rear side of the sealing plug, a rear end of the push rod extending to the outside of the drencher barrel, a medicine liquid outlet being arranged at the front end of the drencher barrel, the livestock drencher also comprises a flow regulating mechanism, the flow regulating mechanism comprises a spiral elastic plate coaxially arranged in the drencher barrel, the spiral elastic plate is located at the front side of the sealing plug, the spiral elastic plate can contract under the impact of the medicine liquid in the drencher barrel so as to reduce the pitch of the spiral elastic plate, thereby reducing the speed at which the medicine liquid outlet sprays outward.

Furthermore, the flow regulating mechanism also includes an adjusting rod movably arranged in the medicine filling barrel along the front-to-back direction, the adjusting rod is T-shaped, including a cross bar and a vertical rod arranged parallel to the axis of the medicine filling barrel, the rear end of the vertical rod is used to cooperate with the rear end stop of the spiral elastic plate to limit the contraction amount of the spiral elastic plate, and the opposite sides of the inner wall of the medicine filling barrel are respectively provided with guiding long holes extending along the front-to-back direction, and the two ends of the cross bar can move forward and backward in the guiding long holes to change the relative position of the adjusting rod and the spiral elastic plate.

Furthermore, the flow regulating mechanism also includes an adjusting ring rotatably arranged on the outside of the medicine filling barrel, a spiral adjusting groove is opened on the inner wall of the adjusting ring, and the two ends of the cross bar respectively pass through the guide long holes on the corresponding sides and slide with the spiral adjusting groove. When the adjusting ring rotates, the two ends of the cross bar slide along the spiral adjusting groove, so that the adjusting rod moves back and forth in the guide long hole to change the relative position of the adjusting rod and the spiral elastic plate.

Furthermore, a medicine filling contact is provided at the front end of the medicine filling cartridge in front of the medicine liquid outlet, and the medicine filling contact is an elastically deformable air bag, and a cavity is provided inside the medicine filling contact, and the cavity is connected with the interior of the medicine filling cartridge through a reflux pipe. A plurality of liquid inlet holes are provided on the outer peripheral surface of the medicine filling contact at circumferential intervals, and a movable sealing plate is provided in the medicine filling cartridge, and the front end of the spiral elastic plate is fixed on the rear side surface of the movable sealing plate, and the movable sealing plate is used to block the rear end of the reflux pipe when the medicine liquid outlet sprays medicine outward, and when the medicine filling contact is squeezed, the medicine liquid in the cavity pushes the movable sealing plate backward through the reflux pipe, so that the movable sealing plate moves backward with the spiral elastic plate.

Furthermore, the medicine filling barrel includes a barrel and a head tube arranged at the front end of the barrel, the diameter of the barrel is larger than the diameter of the head tube, the medicine liquid outlet is arranged at the front end of the head tube, the medicine filling contact is connected to the front end of the head tube and is located in front of the medicine liquid outlet, and the reflux pipe is located at the periphery of the head tube and is connected between the medicine filling contact and the barrel.

Furthermore, a plurality of the return pipes are provided, and the plurality of the return pipes are evenly spaced along the circumference of the head pipe.

Furthermore, a limiting protrusion for limiting the position of the movable sealing plate is provided on the inner side wall of the cylinder, and the front end of the cylinder has a front end wall, and a movable space for the movable sealing plate to move forward and backward is formed between the limiting protrusion and the front end wall, and the movable sealing plate is located between the limiting protrusion and the front end wall.

Furthermore, both ends of the cross bar have spherical protrusions, and the spherical protrusions are located in the spiral adjustment grooves of the adjustment ring. The two ends of the cross bar are slidably matched with the spiral adjustment grooves through the spherical protrusions.

Furthermore, handles are provided on opposite sides of the rear end of the medicine filling cartridge.

Furthermore, a bite piece is provided on the outer wall of the medicine filling barrel in front of the handle, and tooth limiting holes are respectively provided on opposite sides of the bite piece.

The beneficial effects of the present invention are as follows: a livestock medicine drencher of the present invention is provided with a flow regulating mechanism, and the spiral elastic plate of the flow regulating mechanism can shrink under the impact of the medicine liquid in the medicine drenching barrel, so that the pitch of the spiral elastic plate is reduced, thereby reducing the speed of the medicine liquid outlet spraying outward, preventing a large impact on livestock, and preventing the medicine liquid from accumulating in the throat of the livestock and choking the livestock, thereby ensuring the health of the livestock.

In addition, the present invention controls the maximum contraction amount of the spiral elastic plate by setting an adjustment ring and an adjustment rod, thereby being able to adapt to livestock of different sizes. At the same time, the present invention is provided with a medicine filling contact, a reflux pipe, a movable sealing plate and a spiral elastic plate, so that when the livestock squeezes the medicine filling contact, a part of the excess medicine liquid in the livestock's mouth can be drawn away, reducing the possibility of the livestock being choked and ensuring the health of the livestock.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work. Those skilled in the art should understand that these drawings are not necessarily drawn to scale.

FIG1 is a perspective schematic diagram of an embodiment of a livestock medicine drencher according to the present invention;

FIG2 is a top view of an embodiment of a livestock drencher of the present invention;

Fig. 3 is a cross-sectional view along the line A-A in Fig. 2;

FIG4 is an enlarged view of a portion B in FIG3 ;

FIG5 is an exploded view of a flow regulating mechanism in an embodiment of a livestock drencher of the present invention;

In the figure: 110, medicine filling cartridge; 111, cylinder body; 112, handle; 113, head tube; 1131, long guide hole; 114, medicine filling contact; 115, liquid inlet hole; 116, reflux pipe; 117, liquid medicine outlet; 118, limiting protrusion; 120, bite piece; 121, tooth limiting hole; 130, adjustment ring; 131, spiral adjustment groove; 132, anti-slip pattern; 140, adjustment rod; 141, cross rod; 142, vertical rod; 150, flow regulating mechanism; 151, spiral elastic plate; 152, movable sealing plate; 160, push rod; 161, sealing plug; 162, push plate.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

An embodiment of a livestock drencher of the present invention, as shown in FIGS. 1 to 5 , comprises a drencher barrel 110 whose axis extends in the front-to-back direction, a sealing plug 161 is provided in the drencher barrel 110, a push rod 160 is connected to the rear side of the sealing plug 161, the rear end of the push rod 160 extends to the outside of the drencher barrel 110, and a liquid medicine outlet 117 is provided at the front end of the drencher barrel 110, and the liquid medicine outlet 117 is also used to suck liquid medicine into the drencher barrel 110, so that the drencher barrel 110 is filled with liquid medicine. In the front-to-back direction defined here, the end of the drencher barrel 110 that sprays liquid medicine is the front end, that is, the end that extends into the mouth of the livestock is the front end, and the other end of the drencher barrel 110 is the rear end. When the livestock medicine injector of the present invention is used, the front end of the medicine injector barrel 110 is inserted into the mouth of the livestock, and then the push rod 160 is pushed forward to move the sealing plug 161 forward, so that the medicine liquid in the medicine injector barrel 110 is injected into the mouth of the livestock through the medicine liquid outlet 117.

The livestock drencher of the present invention also includes a flow regulating mechanism 150, which includes a spiral elastic plate 151 coaxially arranged in the drenching barrel 110, and the spiral elastic plate 151 is located on the front side of the sealing plug 161. The spiral elastic plate 151 can shrink under the impact of the liquid medicine in the drenching barrel 110 to reduce the pitch of the spiral elastic plate 151, thereby reducing the speed of the liquid medicine outlet 117 spraying medicine outward. The spiral elastic plate 151 in the present invention can be made of a metal sheet with a certain deformation ability, or it can be made of a rubber sheet. The projection of the spiral elastic plate 151 in a plane perpendicular to the front-to-back direction is a complete circular surface, that is, when the spiral elastic plate 151 is compressed into a plane, the edges of each circle of the spiral elastic plate 151 are in contact. When the push rod 160 is manually operated to move forward, the sealing plug 161 is driven forward to push the liquid medicine in the medicine filling barrel 110 to flow forward. Since the diameter of the veterinary medicine filling barrel 110 is usually larger than that of the human medical syringe, when the sealing plug 161 moves forward, the flow rate of the liquid medicine in the medicine filling barrel 110 is relatively large. As the liquid medicine flows forward, the spiral elastic plate 151 will be impacted by the liquid medicine and shrink and deform. When the spiral elastic plate 151 shrinks, the pitch between each circle of the spiral elastic plate 151 will decrease, thereby reducing the cross-section of the channel through which the liquid medicine flows from the side of the spiral elastic plate 151, thereby reducing the speed at which the liquid medicine flows forward, and thereby reducing the amount of liquid medicine sprayed from the liquid medicine outlet 117, thereby preventing a large impact on the livestock and preventing the liquid medicine from accumulating in the throat of the livestock and choking the livestock.

In this embodiment, the flow regulating mechanism 150 further includes an adjusting rod 140 movably arranged in the medicine filling barrel 110 along the front-back direction. The adjusting rod 140 is T-shaped and includes a cross bar 141 and a vertical rod 142 arranged parallel to the axis of the medicine filling barrel 110. The opposite sides of the inner wall of the medicine filling barrel 110 are respectively provided with guide long holes 1131 extending along the front-back direction. The two ends of the cross bar 141 can move forward and backward in the guide long holes 1131 to change the relative position of the adjusting rod 140 and the spiral elastic plate 151. In this embodiment, there is a certain interval between the rear end of the vertical rod 142 and the rear end of the spiral elastic plate 151. When the spiral elastic plate 151 undergoes a certain contraction deformation, the rear end of the vertical rod 142 will cooperate with the rear end stop of the spiral elastic plate 151, thereby limiting the contraction amount of the spiral elastic plate 151.

In this embodiment, the flow regulating mechanism 150 also includes an adjusting ring 130 rotatably arranged outside the medicine filling barrel 110, and a spiral adjusting groove 131 is provided on the inner wall of the adjusting ring 130. The two ends of the cross bar 141 respectively pass through the guide long holes 1131 on the corresponding sides and slide with the spiral adjusting groove 131. When the adjusting ring 130 rotates, the two ends of the cross bar 141 slide along the spiral adjusting groove 131, so that the adjusting rod 140 moves forward and backward in the guide long hole 1131 to change the relative position of the adjusting rod 140 and the spiral elastic plate 151, thereby controlling the maximum contraction amount of the spiral elastic plate 151. In order to facilitate manual rotation of the adjusting ring 130, an anti-slip pattern 132 is provided on the outer peripheral surface of the adjusting ring 130.

In this embodiment, the front end of the medicine filling barrel 110 is provided with a medicine filling contact 114 in front of the medicine liquid outlet 117, and the medicine filling contact 114 is an elastically deformable air bag. When in use, the medicine filling contact 114 extends into the mouth of the livestock. On the one hand, the medicine filling contact 114 can help to push open the mouth of the livestock. On the other hand, the present invention utilizes the compression and contraction of the medicine filling contact 114 to realize that when there is too much medicine liquid in the mouth of the livestock, a part of the medicine liquid is drawn back into the medicine filling contact 114. Specifically, the medicine filling contact 114 has a cavity inside, and the cavity is connected with the inside of the medicine filling barrel 110 through the reflux pipe 116. A plurality of liquid inlet holes 115 are spaced apart along the circumferential direction on the outer peripheral surface of the medicine filling contact 114. When the medicine liquid is filled into the medicine filling barrel 110 through the medicine liquid outlet 117, a part of the medicine liquid will also enter the cavity and the reflux pipe 116 through the liquid inlet hole 115. A movable sealing plate 152 is provided in the medicine filling barrel 110, and the front end of the spiral elastic plate 151 is fixed on the rear side of the movable sealing plate 152. The movable sealing plate 152 is used to block the rear end of the return pipe 116 when the medicine outlet 117 sprays medicine outward, thereby preventing the medicine from spraying out from the return pipe 116 through the liquid inlet hole 115 when the sealing plug 161 moves forward. Since livestock will intermittently squeeze the medicine filling contact 114 during the process of swallowing the medicine liquid, when there is a lot of medicine liquid in the mouth of the livestock, after the medicine filling contact 114 is squeezed, the medicine liquid in the cavity pushes the movable sealing plate 152 backward through the reflux pipe 116, so that the movable sealing plate 152 moves backward with the spiral elastic plate 151. In the process of the movable sealing plate 152 and the spiral elastic plate 151 moving backward, the medicine liquid in front of the medicine filling cartridge 110 will be sucked backward to a certain extent, which will cause a part of the excess medicine liquid in the mouth of the livestock to be sucked into the cavity of the medicine filling contact 114 through the liquid inlet hole 115, thereby reducing the possibility of the livestock being choked.

In this embodiment, the drug filling barrel 110 includes a barrel 111 and a head tube 113 disposed at the front end of the barrel 111. The diameter of the barrel 111 is larger than the diameter of the head tube 113. The drug liquid outlet 117 is disposed at the front end of the head tube 113. The drug filling contact 114 is connected to the front end of the head tube 113 and is located in front of the drug liquid outlet 117. A groove is provided on the outer peripheral surface of the head tube 113, and the adjustment ring 130 is located in the groove. The reflux pipe 116 is located at the periphery of the head tube 113 and is connected between the drug filling contact 114 and the barrel 111. In this embodiment, a plurality of reflux pipes 116 are provided, and the plurality of reflux pipes 116 are evenly spaced along the circumference of the head tube 113.

In this embodiment, in order to limit the position of the movable sealing plate 152, a limiting protrusion 118 for limiting the movable sealing plate 152 is provided on the inner wall of the cylinder 111, and the front end of the cylinder 111 has a front end wall, and a movable space for the movable sealing plate 152 to move forward and backward is formed between the limiting protrusion 118 and the front end wall, and the movable sealing plate 152 is located between the limiting protrusion 118 and the front end wall.

In this embodiment, in order to reduce the friction between the adjustment rod 140 and the spiral adjustment groove 131, the two ends of the cross rod 141 have spherical protrusions, and the spherical protrusions are located in the spiral adjustment groove 131 of the adjustment ring 130. The two ends of the cross rod 141 are slidably matched with the spiral adjustment groove 131 through the spherical protrusions.

In this embodiment, in order to facilitate manual operation to push the medicine forward, a push plate 162 is provided at the rear end of the push rod 160, and grips 112 are provided on opposite sides of the rear end of the medicine filling barrel 110. In order to help livestock open their mouths and facilitate medicine filling, in this embodiment, a bite piece 120 is provided on the outer wall of the medicine filling barrel 110 in front of the grip 112, and tooth limiting holes 121 are provided on opposite sides of the bite piece 120.

When the livestock drencher of the present invention is used, firstly, liquid medicine is loaded into the drencher barrel 110, and the push rod 160 is pulled backward to move the sealing plug 161 backward, and the liquid medicine is extracted into the interior of the drencher barrel 110 through the liquid medicine outlet 117. During the process of loading the liquid medicine, a part of the liquid medicine will enter the cavity and the reflux pipe 116 through the liquid inlet hole 115. Then, the front end of the drencher barrel 110 is inserted into the mouth of the livestock, so that the livestock bites on the bite piece 120, and the tooth limiting hole 121 limits the teeth of the livestock. Then, the push rod 160 is pushed forward to push the sealing plug 161 forward, so that the liquid medicine enters the throat of the livestock through the liquid medicine outlet 117.

When the push plate 162 is pushed forward, if the sealing plug 161 moves forward slowly and the liquid medicine is sprayed out slowly, the deformation of the spiral elastic plate 151 is relatively small or even no shrinkage deformation occurs, which has a relatively small impact on the liquid medicine. When the sealing plug 161 moves forward quickly and the liquid medicine is sprayed out quickly, the flow of the liquid medicine will cause the spiral elastic plate 151 to shrink and deform significantly, and the pitch between each circle of the spiral elastic plate 151 will become smaller, thereby reducing the cross-section for the liquid medicine to pass through from the side of the spiral elastic plate 151, reducing the flow rate of the liquid medicine, and preventing the liquid medicine from spraying out too quickly, thereby reducing the discomfort reaction of the livestock and further reducing the possibility of the livestock being choked.

The rear end of the adjusting rod 140 limits the rear end of the spiral elastic plate 151. By rotating the adjusting ring 130, the adjusting rod 140 slides along the spiral adjusting groove 131 inside the adjusting ring 130, and the adjusting rod 140 moves forward and backward along the guiding slot 1131. By rotating the adjusting ring 130, the position of the adjusting rod 140 relative to the spiral elastic plate 151 can be changed, thereby controlling the maximum contraction amount of the spiral elastic plate 151. In this way, the adjusting rod 140 can be adjusted to different positions for livestock with different sensitivities.

In addition, by providing the medicine filling contact 114, the reflux pipe 116, the movable sealing plate 152 and the spiral elastic plate 151, when the livestock is given medicine, if a large amount of liquid medicine accumulates in the throat of the livestock, the liquid medicine will submerge the medicine filling contact 114. When the throat of the livestock intermittently squeezes the medicine filling contact 114, the liquid medicine will push open the movable sealing plate 152, so that the movable sealing plate 152 moves backward with the spiral elastic plate 151. During the backward movement of the movable sealing plate 152 and the spiral elastic plate 151, the liquid medicine in front of the medicine filling cartridge 110 will be sucked backward to a certain extent, which will cause a part of the excess liquid medicine in the mouth of the livestock to be sucked into the cavity of the medicine filling contact 114 through the liquid inlet hole 115, thereby reducing the possibility of the livestock being choked and ensuring the health of the livestock.

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

Claims (8)

1. The utility model provides a poultry drencher, includes that the axis extends along fore-and-aft direction fills cartridge (110), be equipped with sealing plug (161) in filling cartridge (110), the rear side of sealing plug (161) is connected with push rod (160), the rear end of push rod (160) extends to the outside of filling cartridge (110), the front end of filling cartridge (110) is equipped with the liquid medicine export, characterized in that, poultry drencher still includes flow control mechanism (150), flow control mechanism (150) include coaxial spiral elastic plate (151) that sets up in filling cartridge (110), spiral elastic plate (151) are located the front side of sealing plug (161), spiral elastic plate (151) can shrink under the impact of the interior liquid medicine of filling cartridge (110) so that the pitch of spiral elastic plate (151) is reduced, and then reduces the speed that the liquid medicine export spouts outside. The flow regulating mechanism (150) further comprises a regulating rod (140) movably arranged in the filling cylinder (110) along the front-back direction, the regulating rod (140) is of a T shape and comprises a cross rod (141) and a vertical rod (142) arranged in parallel with the axis of the filling cylinder (110), the rear end of the vertical rod (142) is used for being in blocking fit with the rear end of the spiral elastic plate (151) to limit the contraction amount of the spiral elastic plate (151), guide long holes (1131) extending along the front-back direction are respectively formed in the two opposite sides of the inner wall of the filling cylinder (110), and the two ends of the cross rod (141) can move back and forth in the guide long holes (1131) so as to change the relative position of the regulating rod (140) and the spiral elastic plate (151); the flow regulating mechanism (150) further comprises a regulating ring (130) which is arranged outside the filling cylinder (110) in a rotating mode, a spiral regulating groove (131) is formed in the inner wall of the regulating ring (130), two ends of the cross rod (141) respectively penetrate through guide long holes (1131) on the corresponding sides and are in sliding fit with the spiral regulating groove (131), when the regulating ring (130) rotates, two ends of the cross rod (141) slide along the spiral regulating groove (131), and the regulating rod (140) moves back and forth in the guide long holes (1131) to change the relative positions of the regulating rod (140) and the spiral elastic plate (151).

2. A zootechnical drencher as claimed in claim 1 wherein: the front end of filling tube (110) is equipped with filling contact (114) in the place ahead of liquid medicine export, filling contact (114) are the gasbag that can elastic deformation, filling contact (114) inside have the cavity, the cavity pass through back flow (116) with filling tube (110) inside intercommunication, be equipped with a plurality of feed liquor holes (115) along circumference interval on filling contact (114)'s the outer peripheral face, be equipped with movable shrouding (152) in filling tube (110), the front end of spiral elastic plate (151) is fixed on the trailing flank of movable shrouding (152), movable shrouding (152) are used for shutoff back flow (116) when the outside medicine of liquid medicine export, when filling contact (114) are pressed, the liquid medicine in the cavity passes through back flow (116) back top movable shrouding (152), make movable shrouding (152) carry spiral elastic plate (151) back removal.

3. A zootechnical drencher as claimed in claim 2 wherein: the filling cylinder (110) comprises a cylinder body (111) and a head pipe (113) arranged at the front end of the cylinder body (111), the diameter of the cylinder body (111) is larger than that of the head pipe (113), the liquid medicine outlet is arranged at the front end of the head pipe (113), a filling contact (114) is connected at the front end of the head pipe (113) and positioned in front of the liquid medicine outlet, and a return pipe (116) is positioned at the periphery of the head pipe (113) and connected between the filling contact (114) and the cylinder body (111).

4. A livestock feeder according to claim 3, wherein: the plurality of return pipes (116) are arranged, and the plurality of return pipes (116) are uniformly arranged at intervals along the circumferential direction of the head pipe (113).

5. A livestock feeder according to claim 3, wherein: the utility model discloses a movable sealing plate, including barrel (111) and movable sealing plate, be equipped with on the inside wall of barrel (111) and be used for carrying out spacing arch (118) to movable sealing plate (152), the front end of barrel (111) has preceding end wall, spacing arch (118) with form between the preceding end wall and supply movable space that movable sealing plate (152) reciprocated, movable sealing plate (152) are located between spacing arch (118) and the preceding end wall.

6. A zootechnical drencher as claimed in claim 1 wherein: the two ends of the cross rod (141) are provided with spherical bulges, the spherical bulges are positioned in the spiral adjusting grooves (131) of the adjusting ring (130), and the two ends of the cross rod (141) are in sliding fit with the spiral adjusting grooves (131) through the spherical bulges.

7. A livestock feeder according to any of claims 1-6, characterized in that: two opposite sides of the rear end of the filling cylinder (110) are provided with grab handles (112).

8. A zootechnical drencher as claimed in claim 7 wherein: an engaging piece (120) is arranged on the outer wall of the filling cylinder (110) in front of the handle (112), and tooth limiting holes (121) are respectively formed in two opposite sides of the engaging piece (120).