Medical injection device for animal husbandry
The servo motor drives the threaded rod to control the injection rate of the potion and protect the needle with the protective shell, which solves the deformation and exposure of the large-volume syringe, and achieves uniform injection and safe operation.
Patent Information
- Application Number
- CN202421378365.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-06-17
AI Technical Summary
The existing syringe has a large volume, making it difficult for veterinarians to push the piston rod, which can easily lead to deformation of the needle, uneven injection speed, restless livestock, and easy damage to the needle exposure.
The threaded rod is driven by a servo motor to control the injection rate of the potion, and combined with a protective shell to protect the needle to avoid deformation and accidental damage to the needle.
The injection rate of the potion is achieved evenly, avoiding needle deformation and accidental damage, reducing livestock restlessness, and improving operational safety.
Smart Images

Figure CN223111851U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of livestock injection devices, and specifically, to a livestock medical injection device. Background Art
[0002] Animal husbandry refers to the process of using the physiological functions of livestock, poultry and other animals that have been artificially domesticated by humans, or wild animals such as deer, musk deer, foxes, minks, otters and quails, through artificial breeding and reproduction, so that they can convert plant energy such as forage and feed into animal energy, in order to obtain livestock products such as meat, eggs, milk, wool, cashmere, hides, silk and medicinal materials. Animal husbandry is an important part of agriculture and is listed as one of the two major pillars of agricultural production together with crop farming. In the process of livestock breeding, syringes are often used to inject drugs into livestock and poultry to ensure their healthy growth.
[0003] When the existing syringe is in use, due to the large volume of livestock and the large amount of medicine required, the volume of the syringe barrel is large. It is not easy for veterinarians to push the piston rod inward, and they need to push the piston rod inward with great force. In the process of pushing the piston rod inward with great force, it is easy to cause the injection needle body to deform. At the same time, manual injection cannot ensure the injection speed, resulting in restlessness during the injection of livestock, which is likely to cause the needle to break into the livestock body. At the same time, the needle of the existing syringe is directly exposed outside, and it is easily damaged when it is collided when not in use. Content of the Utility Model
[0004] The utility model provides a livestock medical injection device, which solves the problems of the syringe in the related technology. Due to the large volume of livestock and the large amount of medicine required, the volume of the syringe barrel is large. It is not easy for veterinarians to push the piston rod inward, and they need to push the piston rod inward with great force. In the process of pushing the piston rod inward with great force, it is easy to cause the injection needle body to deform. At the same time, manual injection cannot ensure the injection speed, resulting in restlessness during the injection of livestock, which is likely to cause the needle to break into the livestock body. At the same time, the needle of the existing syringe is directly exposed outside, and it is easily damaged when it is collided when not in use.
[0005] The technical solution of the utility model is as follows:
[0006] A livestock medical injection device includes an installation shell. The inner cavity of the installation shell is divided into an electrical chamber on the left and a driving chamber on the right by a partition. One side of the partition located in the electrical chamber is fixed with a servo motor. A threaded rod is rotatably installed in the driving chamber. The power shaft of the servo motor passes through the partition through a bearing and is fixedly connected to one end of the threaded rod. A push plate is screwed onto the threaded rod. A plurality of connecting shafts are symmetrically fixed on the side of the push plate away from the partition. The other ends of the connecting shafts all slidably penetrate through the side wall of the installation shell and are fixed with the same installation plate. A syringe piston is rotatably installed on the side wall of the installation plate. The bottom wall of the installation shell is fixed with a handle. A battery slot is opened in the handle. A battery for supplying power to the servo motor is installed in the battery slot. A battery cover is clamped at the position corresponding to the battery slot on the bottom wall of the handle. A forward switch for driving the servo motor to rotate forward and a reverse switch for driving the servo motor to rotate in reverse are installed at the top of the side wall of the handle. A screw joint is fixed on one side of the installation shell. A syringe is screwed onto the screw joint. A threaded sleeve is fixed at the connection position between the syringe and the screw joint. The other end of the syringe is fixedly communicated with a connection head. A needle is inserted into the connection head. A protective shell is slidably sleeved on the outer wall of the syringe.
[0007] On one side of the inner wall of the protective shell, a plurality of sliders are symmetrically fixed. Corresponding to the sliders, chutes are opened on the outer wall of the syringe. The sliders are slidably installed in the corresponding chutes. A positioning mechanism is installed inside the protective shell corresponding to the sliders. Limit holes for cooperating with the positioning mechanism are opened on both sides of the bottom wall of the chute.
[0008] The positioning mechanism includes a top ball. Installation grooves are opened in the protective shell and the slider corresponding to the top ball. The top ball is slidably installed in the installation groove. A spring is fixed between one side of the top ball and the inner wall of the installation groove. The other side of the top ball slidably penetrates through the side wall of the slider. One end of the top ball coincides with the limit hole.
[0009] The syringe piston fits closely with the inner wall of the syringe.
[0010] The number of the connecting shafts is at least two.
[0011] The beneficial effects of the present utility model are as follows:
[0012] 1. In the present utility model, the injection of the liquid medicine is controlled by a servo motor, so that the injection rate of the liquid medicine is uniform, avoiding the restlessness of livestock during the injection process caused by the inability to maintain a consistent speed during manual injection. At the same time, using a servo motor to control the injection of the liquid medicine can effectively avoid the deformation of the needle due to excessive force during the injection process.
[0013] 2. In the present utility model, the protective shell provided can protect the needle, thus avoiding accidental collision damage to the needle when not in use or accidental injury caused by accidental contact by the operator. Description of the Drawings
[0014] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0015] Figure 1 It is a three-dimensional external structure diagram of the present utility model;
[0016] Figure 2 It is a three-dimensional separated state structure diagram of the present utility model;
[0017] Figure 3 It is a three-dimensional internal structure diagram of the installation shell of the present utility model;
[0018] Figure 4 It is a three-dimensional separated state structure diagram of the protective shell and the syringe of the present utility model;
[0019] Figure 5 It is a sectional view of the protective shell of the present utility model;
[0020] Figure 6 It is Figure 5 an enlarged schematic view of part A in
[0021] In the figure: 1. Installation shell; 2. Partition board; 3. Electrical chamber; 4. Driving chamber; 5. Servo motor; 6. Threaded rod; 7. Pushing plate; 8. Connecting shaft; 9. Installation plate; 10. Syringe piston; 11. Handle; 12. Battery cover; 13. Forward switch; 14. Reverse switch; 15. Screw joint; 16. Threaded sleeve; 17. Syringe; 18. Protective shell; 19. Connecting head; 20. Needle; 21. Slide groove; 22. Positioning mechanism; 221. Top ball; 222. Spring; 223. Installation groove; 23. Limit hole; 24. Slide block. Specific Embodiments
[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.
[0023] Embodiment 1
[0024] As Figures 1 to 4 shown, this embodiment proposes:
[0025] A livestock medical injection device includes an installation shell 1. The inner cavity of the installation shell 1 is divided into an electrical chamber 3 on the left and a driving chamber 4 on the right by a partition plate 2. A servo motor 5 is fixed on one side of the partition plate 2 located in the electrical chamber 3. A threaded rod 6 is rotatably installed in the driving chamber 4. The power shaft of the servo motor 5 passes through the partition plate 2 through a bearing and is fixedly connected to one end of the threaded rod 6. A push plate 7 is screwed on the threaded rod 6. A plurality of connecting shafts 8 are symmetrically fixed on the side of the push plate 7 away from the partition plate 2. The other ends of the connecting shafts 8 all slidably penetrate through the side wall of the installation shell 1 and are fixedly connected to the same installation plate 9. A syringe piston 10 is rotatably installed on the side wall of the installation plate 9. A handle 11 is fixed on the bottom wall of the installation shell 1. A battery slot is opened in the handle 11, and a battery for supplying power to the servo motor 5 is installed in the battery slot. A battery cover 12 is clamped at the position corresponding to the battery slot on the bottom wall of the handle 11. A forward switch 13 for driving the servo motor 5 to rotate forward and a reverse switch 14 for driving the servo motor 5 to rotate in reverse are installed on the top of the side wall of the handle 11. A screw joint 15 is fixed on one side of the installation shell 1. A syringe 17 is screwed on the screw joint 15. A threaded sleeve 16 is fixed at the connection position between the syringe 17 and the screw joint 15. The other end of the syringe 17 is fixedly communicated with a connection head 19. A needle 20 is inserted on the connection head 19. A protective shell 18 is slidably sleeved on the outer wall of the syringe 17. The syringe piston 10 fits with the inner wall of the syringe 17. The number of the connecting shafts 8 is at least two.
[0026] In this embodiment, the set servo motor 5 is used to drive the threaded rod 6 to rotate. During the rotation of the threaded rod 6, the push plate 7 can be driven to move along the driving chamber 4. During the movement of the push plate 7, the syringe piston 10 on the installation plate 9 is driven to move along the inside of the syringe 17 through the connecting shafts 8, so as to realize squeezing out the liquid medicine in the syringe 17 or sucking the liquid medicine into the syringe 17. The set handle 11 conforms to human mechanics, making it more comfortable for the operator to hold. Press the forward switch 13 with the index finger to control the servo motor 5 to rotate forward, and press the reverse switch 14 to control the servo motor 5 to rotate in reverse. The injection of the liquid medicine is controlled by the servo motor 5, so that the injection rate of the liquid medicine is uniform, avoiding the restlessness of livestock during the injection process caused by the inability to maintain a consistent speed during manual injection. The set battery cover 12 can facilitate the replacement of the battery. The set screw joint 15 and threaded sleeve 16 can facilitate the disassembly and installation of the syringe 17. The set protective shell 18 can protect the needle 20, thus avoiding accidental collision damage of the needle 20 when not in use or accidental injury caused by accidental touching by the operator.
[0027] Embodiment 2
[0028] As Figures 4 to 6 shown, based on the same concept as the above Embodiment 1, this embodiment also proposes:
[0029] On one side of the inner wall of the protective shell 18, a number of sliders 24 are symmetrically fixed. Corresponding to the positions of the sliders 24 on the outer wall of the syringe barrel 17, sliding grooves 21 are provided. The sliders 24 are slidably installed in the corresponding sliding grooves 21. A positioning mechanism 22 is installed inside the protective shell 18 corresponding to the positions of the sliders 24. On both sides of the bottom wall of the sliding groove 21, limit holes 23 are provided which cooperate with the positioning mechanism 22. The positioning mechanism 22 includes a top ball 221. Installation grooves 223 are provided in the protective shell 18 and the sliders 24 corresponding to the position of the top ball 221. The top ball 221 is slidably installed in the installation groove 223. A spring 222 is fixed between one side of the top ball 221 and the inner wall of the installation groove 223. The other side of the top ball 221 slidably penetrates the side wall of the slider 24. One end of the top ball 221 coincides with the limit hole 23.
[0030] In this embodiment, the provided protective shell 18 can protect the needle 20, thereby avoiding accidental collision damage to the needle 20 when it is not in use or accidental injury caused by accidental touching by the operator. At the same time, when injecting, the protective shell 18 can be moved to the side away from the needle 20, so that the needle 20 is exposed to facilitate the injection operation on livestock. When it is necessary to pull down the protective shell 18 to protect the needle 20, the protective shell 18 is pushed forcefully in the direction of the needle 20. At this time, the top ball 221 moves into the installation groove 223 under the extrusion of the side wall of the limit hole 23, and at the same time, the spring is compressed until the top ball 221 disengages from the limit hole 23, so that the protective shell 18 can be smoothly pushed in the direction of the needle 20 until the top ball 221 is caught in another limit hole 23 to complete the protection of the needle 20.
[0031] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A livestock medical injection device, characterized in that, It includes an installation shell (1). The inner cavity of the installation shell (1) is divided into an electrical chamber (3) on the left and a drive chamber (4) on the right by a partition plate (2). A servo motor (5) is fixed on one side of the partition plate (2) located in the electrical chamber (3). A threaded rod (6) is rotatably installed in the drive chamber (4). The power shaft of the servo motor (5) passes through the partition plate (2) through a bearing and is fixedly connected to one end of the threaded rod (6). A push plate (7) is screwed on the threaded rod (6). A number of connecting shafts (8) are symmetrically fixed on the side of the push plate (7) away from the partition plate (2). The other ends of the connecting shafts (8) all slide through the side wall of the installation shell (1) and are fixedly connected to the same installation plate (9). A syringe piston (10) is rotatably installed on the side wall of the installation plate (9). A handle (11) is fixed on the bottom wall of the installation shell (1). A battery slot is opened in the handle (11), and a battery for supplying power to the servo motor (5) is installed in the battery slot. A battery cover (12) is snap-fitted to the bottom wall of the handle (11) corresponding to the position of the battery slot. A forward switch (13) for driving the servo motor (5) to rotate forward and a reverse switch (14) for driving the servo motor (5) to rotate in reverse are installed on the top of the side wall of the handle (11). A screw joint (15) is fixed on one side of the installation shell (1). A syringe (17) is screwed on the screw joint (15). A threaded sleeve (16) is fixed at the connection position of the syringe (17) and the screw joint (15). The other end of the syringe (17) is fixedly connected and communicated with a connector (19). A needle (20) is inserted into the connector (19). A protective shell (18) is slidably sleeved on the outer wall of the syringe (17).
2. The veterinary injection device for livestock according to claim 1, characterized in that, On one side of the inner wall of the protective shell (18), a number of sliders (24) are symmetrically fixed. Corresponding to the positions of the sliders (24) on the outer wall of the syringe (17), chute grooves (21) are opened. The sliders (24) are slidably installed in the corresponding chute grooves (21). A positioning mechanism (22) is installed inside the protective shell (18) corresponding to the positions of the sliders (24). Limit holes (23) for cooperating with the positioning mechanism (22) are opened on both sides of the bottom wall of the chute grooves (21).
3. The livestock medical injection device according to claim 2, characterized in that, The positioning mechanism (22) includes a top ball (221). Installation grooves (223) are opened in the protective shell (18) and the sliders (24) corresponding to the position of the top ball (221). The top ball (221) is slidably installed in the installation grooves (223). A spring (222) is fixed between one side of the top ball (221) and the inner wall of the installation grooves (223). The other side of the top ball (221) slides through the side wall of the slider (24). One end of the top ball (221) is fitted with the limit hole (23).
4. The veterinary injection device for livestock according to claim 1, characterized in that, The syringe piston (10) is in close contact with the inner wall of the syringe (17).
5. The livestock medical injection device according to claim 1, characterized in that, The number of the connecting shafts (8) is at least two.