A poultry injection device that is convenient for replacing needles
By designing a poultry injection device that is easy to replace the needle, the rapid replacement and fixation of the needle is achieved using the return spring and the needle limiting plate, the problems of inconvenience and cross-infection in the prior art are solved, and the working intensity and diseases of vaccine injectors are reduced. Risk of transmission.
Patent Information
- Application Number
- CN202011492764.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-12-16
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2040-12-16
AI Technical Summary
Existing poultry injection devices are time-consuming and labor-intensive when replacing needles, which leads to inconvenience in vaccine injection, which can easily cause cross-infection, increase disease transmission and economic losses.
A poultry injection device that is easy to replace the needle is designed, including a push device, a needle store and a bracket. The needle is quickly replaced and fixed through the return spring and the needle limiting plate, avoiding multiple alignment and alignment processes, and adopting one-way Valves and rubber plugs ensure continuous draw and injection of vaccines.
The speed of needle replacement is achieved, the work intensity and time of vaccine injectors is reduced, the vaccine cross-infection is avoided, and a needle is used for each poultry is ensured, which reduces disease transmission and economic losses.
Smart Images
Figure CN112451165B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of poultry injection, in particular to a poultry injection device which is convenient for replacing a needle. Background Art
[0002] At present, due to the increasing scale of intensive poultry farming, especially the breeding of laying hens and broilers, which ranges from a few thousand to hundreds of thousands or even millions, vaccination to prevent the occurrence and spread of diseases has become the key to the success of poultry farming, and most poultry vaccines require subcutaneous or intramuscular injections. In order to reduce the workload of vaccine injection personnel, the current injection method of many farms is to use continuous syringes to reduce the preparation and addition of liquid after each injection. Due to the small size of the needle and the needle interface, and the large number of chickens (ducks or geese) that need to be injected, in order to avoid cross-infection between different chickens (ducks or geese), after each injection of a chicken (duck or goose), it is necessary to pull out the old needle, re-align the syringe, replace the new needle, and then inject another chicken (duck or goose), which seems to be time-consuming and laborious to align and replace the needle. In actual use, due to the inconvenience of aligning and replacing needles, one needle may often be used to inject hundreds of chickens (ducks or geese). Therefore, the number of chickens (ducks or geese) that become ill suddenly increases after vaccination, the spread of the disease accelerates, and even the death rate increases, causing immeasurable economic losses to farmers. The main reason is cross-infection caused by not changing the needle when injecting the vaccine. Sick chickens (ducks or geese) or chickens in the latent period of the virus directly infect healthy chickens (ducks or geese) through the injection needle.
[0003] The utility model patent with application number 201420631385.7 discloses a continuous injection veterinary syringe, which is configured by placing the vaccine on the vaccine bottle, and allowing the vaccine or liquid medicine to enter the injection barrel through the needle hole; by holding the two handles tightly, and the push rod pushes the rubber plug under the pressure of the rear handle, so that the liquid medicine passes through the needle and enters the body of the livestock or animal; under the action of the spring reset, the push rod drives the rubber plug to move, and then the liquid medicine enters the injection barrel, achieving the effect of continuous injection of livestock. Due to the large number of chickens (ducks or geese), this patent also faces the problem of multiple alignment processes in actual use, such as manually pulling out the needle for each injection of a bird, and then aligning another needle with the needle interface, which makes needle replacement inconvenient, time-consuming and labor-intensive. Summary of the invention
[0004] The purpose of the present invention is to provide a poultry injection device with easy needle replacement. The poultry injection device with easy needle replacement can not only realize continuous extraction and continuous injection of vaccines, but also convenient and quick needle replacement, effectively reducing the workload and working time of vaccine injection personnel, realizing one needle for one animal, and avoiding cross infection caused by vaccine injection.
[0005] To achieve the above object, the present invention adopts the following technical solutions:
[0006] A poultry injection device that is easy to replace a needle, comprises a push-in device, a needle magazine and a bracket, wherein the needle magazine and the push-in device are both fixed on the bracket, a plurality of needle placement grooves in an axial array are provided on the needle magazine, and the needle magazine can rotate around the axis with its center as the axis; a needle stop is provided at the front end of the needle placement groove, and a needle hole corresponding to the needle placement groove is provided on the needle stop; an elastic support is provided in the needle placement groove, and the elastic support can elastically keep the needle in the needle placement groove; a detachable needle stop plate is provided at the rear end of the needle placement groove, and needle stop holes corresponding to the number of needle placement grooves are provided on the needle stop plate; a needle interface and a syringe are provided on the push-in device, and a one-way valve is provided at the connection between the needle interface and the syringe; the push-in device can move on the bracket and thereby drive the needle interface to insert and pull out of the needle placement groove through the needle stop hole.
[0007] Preferably, the elastic support is substantially conical.
[0008] Preferably, the ejection device also includes a rear handle, a front handle, a push rod, a rubber stopper, a medicine bottle rack and a rotating shaft, and the rear handle is connected to the front handle by a rotating shaft; the front end of the push rod is inserted into the front handle and enters the syringe barrel, the front end of the push rod is connected to the rubber stopper, and the rear end of the push rod is fixedly connected to the rear handle; a non-return device is provided at the fixed connection between the medicine bottle rack and the syringe barrel; the needle interface is provided at the front end of the syringe barrel.
[0009] Preferably, the fixed connection between the medicine bottle placement rack and the syringe is located at the front end of the syringe.
[0010] Preferably, a spring is provided on the rotating shaft; and a pin hole is provided on the medicine bottle placement rack.
[0011] Preferably, a slide rail is provided on the bracket, a slideway cooperating with the slide rail is provided on the ejection device, the ejection device slides on the bracket through the slideway cooperating with the slide rail, and a push-ejection device limit block is provided on the slide rail.
[0012] Preferably, the elastic support is a return spring.
[0013] Preferably, a needle stop is provided at the front end of the needle placement slot, and a needle hole corresponding to the needle placement slot is provided on the needle stop; the needle magazine is provided with a rotating shaft, and rotates around the rotating shaft as the center.
[0014] Further preferably, the syringe barrel is provided with a scale, and the non-return device is provided with a non-return valve.
[0015] In the above technical scheme, the needle is elastically retained in the needle placement groove by a return spring, and the needle limit plate limits the tail end of the needle to prevent the needle from slipping out of the needle placement groove; the ejection device slides on the bracket through the slideway and the slide rail, and further sends the needle interface to the needle placement groove and connects with the needle in the needle placement groove to achieve alignment and alignment of the needle interface and the needle; the needle interface, the return spring, and the needle limit act together on the needle so that the tip of the needle is exposed from the front end of the needle placement groove, and the needle is limited to a fixed position at the same time. The return spring and the needle limit double guarantee that the needle will not be ejected from the front end of the needle placement groove, and the return spring and the needle limit provide the needle with a force so that the needle and the needle interface are tightly connected and leak-proof; the vaccine is fixed to the device through the medicine bottle placement rack, and the vaccine enters the injection barrel through the needle insertion hole. Under the reset action of the spring, the push rod drives the rubber stopper to move, thereby allowing the medicine to enter the injection The medicine liquid can be extracted from the cylinder, and the one-way valve prevents air from entering the injection cylinder through the needle interface; by holding the two handles tightly, the push rod pushes the rubber plug under the pressure of the rear handle, so that the vaccine can enter the animal's body through the needle; after the injection is completed, the push rod drives the rubber plug to move under the action of the spring reset, and then the medicine liquid enters the injection cylinder, so as to realize continuous extraction and continuous injection of the medicine liquid; after the injection is completed, the push-in device slides backward, the reset spring resets the needle, and the needle is pulled out of the needle interface through the needle limit plate; the needle is selected by rotating the needle library, so that each time a poultry is injected, only the push-in device needs to be slid and the needle library needs to be rotated to realize the removal and replacement of the needle. The needle replacement is convenient and fast, avoiding multiple alignment processes of the needle and the needle interface, and reducing the work intensity and working time of the vaccine injection personnel; thus, one needle is used for each animal, avoiding cross infection caused by vaccine injection. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A schematic diagram of a front view of a poultry injection device for easy needle replacement according to the present invention;
[0017] Figure 2 A schematic diagram of a front view of a poultry injection device for easy needle replacement according to the present invention;
[0018] Figure 3 It is a schematic diagram of a front view and a cross-sectional view of a needle magazine of the present invention;
[0019] Figure 4 It is a schematic diagram of a right side sectional view of the needle magazine of the present invention. DETAILED DESCRIPTION
[0020] The present invention will be further described below in conjunction with the accompanying drawings:
[0021] The present invention is a poultry injection device which is convenient for replacing needles, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, it includes a push-in device 10, a needle magazine 20 and a bracket 30. The push-in device 10 and the needle magazine 20 are both fixed on the bracket 30. The needle magazine 20 is provided with a plurality of axial array needle placement grooves 40, and the needle magazine 20 can rotate around its center as the axis; an elastic support 41 is provided in the needle placement groove 40 to achieve elastic retention of the needle 1 in the needle placement groove 40; a needle interface 11 and a syringe 16 are provided on the push-in device 10, and a one-way valve 110 is provided at the connection between the needle interface 11 and the syringe 16, which can adopt the common micro spring one-way valve on the market, or can also be a valve type or diaphragm type one-way valve, which can be made of medical plastic material; the push-in device 10 is movably arranged on the bracket 30, thereby driving the needle interface 11 to insert and pull out of the needle placement groove 40, so as to achieve the connection between the needle interface 11 and the needle 1. In this embodiment, the elastic support 41 is a return spring 42 that is basically conical. A detachable needle stop plate 43 is provided at the rear end of the needle placement slot 40. The needle stop plate 43 is provided with needle stop holes 44 corresponding to the number of the needle placement slots 40. The needle interface 11 is inserted into and pulled out of the needle placement slot 40 through the needle stop holes 44. At the same time, the needle stop plate 43 limits the rear end of the needle 1 to prevent the needle 1 from slipping out of the needle placement slot 40. In this way, the needle interface 11 is inserted into and pulled out of the needle placement slot 40. The ejection device 10 moves on the bracket 30 and is inserted into the needle placement slot 40, while providing a forward thrust to the needle 1, so that the needle interface 11 and the return spring 42 act together on the needle 1, so that the tip of the needle 1 is exposed from the front end of the needle placement slot 40, and at the same time, the needle 1 is limited to a fixed position in the needle placement slot 40, and the needle 1 will not be pushed out from the front end of the needle placement slot 40, thereby achieving alignment and tight connection between the needle 1 and the needle interface 11 to avoid leakage. A needle limiter 45 can also be set at the front end of the needle placement slot 40. The needle limiter 45 is provided with a plurality of needle holes 46 corresponding to the needle placement slot 40. The needle hole 46 only allows the tip of the needle 1 to penetrate. In this way, the reset spring 42 and the needle limiter 45 can double guarantee that the needle 1 will not be pushed out from the front end of the needle placement slot 40; the elastic support 41 can be further set to a cone shape, so that the elastic support 41 has the function of guiding the needle 1 to quickly align with the needle hole 46, and at the same time can prevent the needle 1 from shaking in the needle placement slot 40.
[0022] In another preferred embodiment, a slide rail 31 is provided on the bracket 30, and a slide rail 12 cooperating with the slide rail 31 is provided on the ejection device 10. The ejection device 10 can slide freely on the bracket 30 through the slide rail 31 cooperating with the slide rail 31 through the slide rail 12. A ejection device limit block 32 is provided at the end of the slide rail 31 to prevent the ejection device 10 from slipping off the slide rail 31 due to excessive movement. In this embodiment, the needle magazine 20 is fixed to the bracket 30 by the rotating shaft 21, so that the needle magazine 20 can rotate around the rotating shaft 21, thereby realizing the correspondence between each needle placement slot 40 and the needle interface 11, and realizing the selection of the needle 1.
[0023] In another preferred embodiment, the needle hub 11 is arranged at the front end of the ejection device 10, and the ejection device 10 also includes a rear handle 12, a front handle 13, a push rod 14, a rubber stopper 15, a medicine bottle rack 17 and a rotating shaft 18, and the rear handle 12 is connected to the front handle 13 through the rotating shaft 18; the front end of the push rod 14 is inserted into the front handle 13 and enters the syringe 16, and the front end of the push rod 14 is connected to the rubber stopper 15 to improve the sealing of the entire ejection device 10, and the rear end of the push rod 14 is fixedly connected to the rear handle 12; the fixed connection between the medicine bottle rack 17 and the syringe 16 is located at the front end of the syringe 16 to avoid the formation of a vacuum in the syringe 16, and the medicine bottle rack 17 is used to fix and support the vaccine bottle or medicine The medicine bottle is fixed with a check device 19 at the fixed connection between the medicine bottle rack 17 and the syringe 16. The check device 19 can be a check valve to prevent the vaccine in the syringe 16 from flowing back into the medicine bottle during the injection process; in this way, the vaccine is fixed on the injection device 10 through the medicine bottle rack 17, and the vaccine enters the syringe 16 through the needle hole 171 on the medicine bottle rack 17. The check valve 110 prevents air from entering the syringe 16 from the needle interface 11 to form bubbles. The scale on the syringe 16 facilitates accurate extraction of the vaccine; hold the two handles tightly, and the push rod 14 pushes the rubber stopper 15 under the pressure of the rear handle 12, so that the vaccine passes through the needle interface 11 and the needle 1 and enters the animal body. In this embodiment, a spring 181 is provided on the rotating shaft 18. Under the reset action of the spring 181, the push rod 14 drives the rubber stopper 15 to return to motion, thereby allowing the liquid medicine to enter the syringe 16 to achieve extraction of the liquid medicine.
[0024] In the above technical scheme, the needle limiting plate 43 is removed from the needle storage 20 to expose the needle placement slot 40; multiple needles 1 are placed in the needle placement slot 40 in sequence with their tips facing the front end of the needle placement slot 40, and the conical elastic support 41 allows the needle 1 to quickly align with the needle hole 46, while elastically retaining the needle 1 in the needle placement slot 40, and the needle limiting plate 43 is covered to seal the needle 1 in the needle placement slot 40; the vaccine bottle containing the vaccine is placed on the medicine bottle placement rack 17, and the two handles are held to push the ejection device 10, and the ejection device 10 slides toward the needle placement slot 40 on the bracket 30 through the slide 12 and the slide rail 31, and further sends the needle interface 11 to the needle placement slot 40 through the needle limiting hole 44 and aligns with the needle placement slot 40 4. The ejection device 10 is continued to be pushed, so that the needle interface 11 provides pressure to the needle 1 and compresses the reset spring 42, and the tip of the needle 1 is exposed from the front end of the needle placement slot 40. At the same time, the needle 1 is limited to a fixed position by the joint action of the needle interface 11, the reset spring 42 and the needle limit 45, and the needle 1 is tightly connected to the needle interface 11. At this time, the rear handle 12 is released, and the rear handle 12 is reset by the spring 181, so that the push rod 14 drives the rubber stopper 15 to return to the movement, and then the medicine enters the syringe barrel 16, so as to realize the accurate suction of the vaccine. The two handles are held tightly, and the push rod 14 pushes the rubber stopper 15 under the pressure of the rear handle 12, so that the vaccine passes through the needle interface 11 and the needle 1 and enters the animal body. After the injection is completed, the ejection device 10 is slid toward the rear of the bracket 30, and the needle interface 11 moves backward with the bracket 30, and when it moves to the needle limit plate 43, the needle limit plate 43 pulls the needle 1 off the needle interface 11 to prevent the needle from contacting another poultry. During this period, always keep the two handles tightly held; rotate the needle library 20 until the next needle placement slot 40 corresponds to the needle interface 11, and then turn the front end of the device downward again, so that the needle 1 in the needle placement slot 40 is aligned with the axis of the needle placement slot 40, and at the same time push the ejection device 10 to slide toward the needle placement slot 40, install the new needle, extract the vaccine and inject it, so that for each injection of a poultry, only the ejection device 10 needs to be slid and the needle library 20 rotated to achieve the removal and replacement of the needle. The needle replacement is convenient and quick, avoiding multiple alignment processes of the needle and the needle interface, reducing the workload and working time of the vaccine injection personnel, and thus avoiding cross infection caused by the vaccine injection.
[0025] This embodiment is only an illustration of the concept and implementation of the present invention, and does not limit it. Under the concept of the present invention, technical solutions that have not been substantially changed are still within the scope of protection.
Claims
1. A poultry injection device that is easy to replace the needle, including a push-in device, characterized in that: It also includes a needle magazine and a bracket, wherein the needle magazine and the ejection device are both fixed on the bracket, a slide rail is provided on the bracket, and a slide rail is provided on the ejection device to cooperate with the slide rail, and the ejection device slides on the bracket through the slide rail and the slide rail, and a push-ejection device limit block is provided at the end of the slide rail to prevent the push-ejection device from slipping off the slide rail due to excessive movement; a plurality of axial array needle placement grooves are provided on the needle magazine, and the needle magazine is provided with a rotating shaft, and the needle magazine can rotate around the rotating shaft as the central axis; a needle limit is provided at the front end of the needle placement groove, and a needle hole corresponding to the needle placement groove is provided on the needle limit; an elastic support is provided in the needle placement groove, and the elastic support can elastically keep the needle in the needle placement groove; a detachable needle limit plate is provided at the rear end of the needle placement groove, and the needle limit plate is provided with a needle hole corresponding to the needle placement groove A needle limiting hole corresponding to the number of slots; a needle interface and a syringe are provided on the pushing device, and a one-way valve is provided at the connection between the needle interface and the syringe, and the needle interface is arranged at the front end of the pushing device; the pushing device includes a medicine bottle placement rack, and the fixed connection between the medicine bottle placement rack and the syringe is located at the front end of the syringe, and the medicine bottle placement rack is used to fix and support the vaccine bottle or the medicine liquid bottle; the pushing device can move on the bracket and thereby drive the needle interface to insert and pull out of the needle placement slot through the needle limiting hole; the pushing device also includes a rear handle, a front handle, a rotating shaft, a push rod and a rubber plug, the rear handle is connected to the front handle by a rotating shaft, and a spring is provided on the rotating shaft; the front end of the push rod is inserted into the front handle and enters the syringe, the front end of the push rod is connected to the rubber plug, and the rear end of the push rod is fixedly connected to the rear handle.
2. The poultry injection device for easy needle replacement according to claim 1, characterized in that: The elastic support is substantially conical.
3. The poultry injection device for easy needle replacement according to claim 1, characterized in that: A non-return device is arranged at the fixed connection between the medicine bottle placement rack and the injection barrel; and the needle interface is arranged at the front end of the injection barrel.
4. The poultry injection device for easy needle replacement according to claim 3, characterized in that: A pin insertion hole is arranged on the medicine bottle placement rack.
5. The poultry injection device for easy needle replacement according to claim 1, characterized in that: The elastic support is a return spring.
6. The poultry injection device for easy needle replacement according to claim 3, characterized in that: The syringe is provided with a scale, and the non-return device is provided with a non-return valve.