CN115804664A

CN115804664A - Poultry vaccine injection device

Info

Publication number: CN115804664A
Application number: CN202211580471.5A
Authority: CN
Inventors: 钟道广
Original assignee: Shenzhen Bosler Science & Technology Co ltd
Current assignee: Shenzhen Bosler Science & Technology Co ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-03-17

Abstract

A poultry vaccine injection device, which belongs to the technical field of poultry neck vaccine injection devices; the vaccine injection device is characterized by comprising a pistol type fixing seat, wherein an injection needle and a vaccine propelling mechanism are arranged in a chamber of the pistol type fixing seat; an injection trigger mechanism comprising a trigger sensor and a trigger lever is arranged at the gun barrel part; a neck retainer is arranged at the muzzle of the pistol type fixed seat; a cavity for accommodating a power mechanism and a reset mechanism is arranged in a gun handle of the pistol type fixed seat, the power mechanism comprises a driving motor and a pushing connecting rod device of the vaccine propelling mechanism, and the reset mechanism comprises a position sensor and an induction sheet; it also includes a programmable controller for controlling the operation of the trigger motor and giving out the instructions of medicine administration, injection and reset. The invention has simple structure, can ensure the accuracy of the dosage and the needle insertion depth, improves the injection efficiency and the safety, and can also effectively reduce the labor intensity and reduce the operation cost of vaccine injection.

Description

Poultry vaccine injection device

The technical field is as follows:

the invention relates to a poultry vaccine injection device, which belongs to the technical field of epidemic prevention of industrially cultured poultry, in particular to a device for injecting vaccine to the neck of the poultry.

The background art comprises the following steps:

the noun explains: a retainer. A retainer refers to a device used in a bird vaccination device to provide physical protection to the bird and to accurately expose the injection site at the injection needle. The retainer can be divided into the following parts according to different parts needing protection and injection parts: the fixator for intramuscular injection is called as muscle fixator for short, and the fixator for neck subcutaneous injection is called as neck fixator for short. The retainer is typically mounted on the end of the automatic vaccine injection apparatus adjacent to the syringe needle.

In the feeding process of modern large-scale poultry farms, young poultry need to be inoculated with multiple kinds of vaccines for multiple times, so that large-scale infectious diseases in poultry groups are prevented, and the loss caused by the large-scale infectious diseases is avoided. At present, the poultry vaccine injection mode has several modes, one mode is an injection mode, and the other mode is a dropping mode. The injection modes are divided into intramuscular injection and neck subcutaneous injection due to different injection sites.

The background technology of the invention is provided for the mode of subcutaneous vaccine injection in the neck.

The vaccine inoculated by the method of hypodermic injection at the back of the neck is still injected by a pure hand by using an injection needle manually at present, the requirement on operation skill is high, the training difficulty of workers is high, young birds are easy to be injured or even die in the inoculation process, the vaccination quality can not be guaranteed, the phenomenon of immune omission can be easily caused, the outbreak of infectious diseases at the later stage of feeding is caused, and huge loss is caused to a farm. In the traditional manual injection mode, the needle insertion depth and angle are completely dependent on the experience and hand feeling of workers, the problem of personnel fatigue exists, and the safety and effectiveness of injection cannot be ensured. In addition, the traditional poultry syringe generally sets the maximum volume inside the syringe as the required dosage by adjusting the maximum limit of the piston, and a user pushes the piston to the bottom, namely, the liquid medicine in the syringe is emptied, so as to achieve the required dosage. If the dosage needs to be adjusted, the position of the piston of the injector needs to be adjusted, and the operation greatly influences the injection efficiency and the liquid feeding accuracy in large-scale injection. As for the existing manual needle-holding injection, the workload is huge, the personnel are easy to be tired, the working environment is severe, and the farm is increasingly difficult to bear high labor cost; if high labor cost is paid, the operation cost is increased virtually, which is not beneficial to the development of the whole poultry breeding industry.

The invention content is as follows:

the invention aims to provide a poultry vaccine injection device which is safe, reliable, capable of automatically and accurately administering a medicament and simple and efficient to operate.

The purpose of the invention is realized as follows:

a poultry vaccine injection device is characterized by comprising a pistol type fixed seat, wherein an injection needle head and a vaccine propelling mechanism are arranged in a chamber of the pistol type fixed seat; an injection trigger mechanism comprising a trigger sensor and a trigger lever is arranged at the gun barrel part; a neck retainer is arranged at the muzzle of the pistol type fixed seat, and the position of the neck retainer corresponds to the position of the injection needle; a cavity for accommodating a power mechanism and a reset mechanism is arranged in a gun handle of the gun type fixed seat, the power mechanism comprises a driving motor and a pushing connecting rod device of the vaccine propelling mechanism, and the reset mechanism comprises a position sensor and an induction sheet; it also includes a programmable controller for controlling the trigger motor to run and giving out the instructions of medicine-feeding, injection and reset.

The vaccine propelling mechanism comprises an injector connected with an injection needle, a liquid pushing piston and an injection push rod with a ball head for pushing the liquid pushing piston are arranged in the injector, and a push rod spring is sleeved on the injection push rod; the ball end of the injection push rod extends out of the tail part of the needle cylinder and is connected with a push rod connecting device in the gun handle, and a liquid inlet hole is also formed in the injector.

The outer middle section of the injector of the vaccine propelling mechanism is sleeved with a sliding block and fixedly connected into an integral structure by a positioning nut; the upper edge of the sliding block is provided with a groove, and a positioning pin penetrates through the wall of the gun barrel and is embedded into the groove.

An injection trigger mechanism is arranged at the gun barrel part of the pistol type fixed seat, the injection trigger mechanism comprises a trigger lever extending from the muzzle part to the tail part of the gun barrel, and the front end of the trigger lever is connected with the neck retainer through a locator adjusting screw; the tail part of the gun barrel part is provided with a space for accommodating the force adjusting spring and the trigger sensor; a trigger piece is arranged below the trigger sensor, and the force adjusting spring and the trigger sensor are both vertically arranged in the tail space of the gun barrel part; the upper end of the force adjusting spring is arranged in the spring adjusting fixed point, and the other end of the force adjusting spring is arranged at the tail part of the trigger lever; the trigger piece is arranged in the clamping groove at the tail part of the trigger lever.

The trigger lever is fixed on the gun barrel part of the pistol type fixing seat through a pin shaft.

A neck retainer is arranged at the muzzle of the pistol type fixed seat, the neck retainer comprises a spoon-shaped curved surface shell for fixing the neck of the poultry, the tail part of the spoon-shaped curved surface shell is provided with a mounting seat, the central position of the spoon-shaped curved surface shell is provided with an injection slot hole, and the position of the injection slot hole corresponds to the position of an injection needle head; the mounting seat is fixed on a trigger lever of the injection trigger mechanism.

And the mounting seat is provided with scale marks.

The power mechanism comprises a driving motor and a pushing connecting rod device of the vaccine propelling mechanism, the driving motor comprises a stepping motor, a push-pull arm is fixed on a shaft of the stepping motor, and the push-pull arm is connected with a ball head rod with a spherical groove through a connecting shaft; the vaccine propelling mechanism comprises an injector connected with an injection needle, a liquid pushing piston and an injection push rod which pushes the liquid pushing piston and is provided with a ball head at the other end are arranged in the injector, the ball head part of the injection push rod is arranged in a spherical groove of a ball head rod, and a push rod spring is sleeved on the ball head push rod of the injector.

A position sensing piece is arranged on the push-pull arm; a position sensor is arranged beside the push-pull arm.

The automatic injection device is simple in structure, adopts the programmable controller to control and realize automatic injection action, can ensure the accuracy of the dosage and the depth of needle insertion, overcomes the defect of manual needle holding injection, improves the injection efficiency and safety, can also effectively reduce the labor intensity, reduces the operation cost of vaccine injection and improves the working environment. The invention can be widely applied to vaccine injection at the back part of the neck of poultry.

Description of the drawings:

FIG. 1 is a schematic view of the external structure of the present invention

FIG. 2 is a schematic plan view of the internal structure of the present invention

FIG. 3 is a perspective view of the internal structure of the present invention

FIG. 4 is a schematic perspective view of the neck restraint of the present invention

FIG. 5 is a block diagram of the operation control of the present invention

The specific implementation mode is as follows:

the invention is further described below with reference to fig. 1, 2, 3, 4 and 5:

as illustrated in fig. 1: in this embodiment, the present invention includes a pistol mount 27, i.e., the present invention is configured to resemble a conventional pistol. The gun chamber, the gun barrel and the handle part in the gun type structure are respectively provided with various mechanisms required by the invention, so that the aim of automatically and accurately injecting the vaccine is fulfilled.

In order to achieve the purpose of the present invention, in this embodiment, as shown in fig. 1 and fig. 2, an injection needle and a vaccine propelling mechanism are disposed in the bore of the pistol-type fixed seat 27 to achieve the injection action of the vaccine; an injection trigger mechanism comprising a trigger sensor and a trigger lever is arranged at the gun barrel part and completes the action of automatically triggering injection. A neck retainer is arranged at the muzzle of the pistol-type fixed seat 27, and the position of the neck retainer corresponds to the position of the injection needle. The neck retainer is used for accurately exposing an injection site to an injection needle at the time of vaccine injection and protecting other parts of the bird from the injection.

A cavity for accommodating a power mechanism and a reset mechanism is arranged in the handle of the pistol type fixed seat 27, the power mechanism comprises a driving motor and a pushing connecting rod device of the vaccine propelling mechanism, and the reset mechanism comprises a position sensor and an induction sheet; it also includes a programmable controller for controlling the operation of the trigger motor and giving out the instructions of medicine administration, injection and reset. The automatic liquid feeding and needle inserting continuous actions of the invention can be realized by the mechanism.

In this embodiment, the present invention can be divided into two units, the first unit is an injection trigger unit, i.e. completing the start of an injection action. It comprises two parts of mechanisms: a vaccine advancing mechanism and an injection triggering mechanism;

as shown in figure 2, the vaccine propelling mechanism comprises an injector 23 connected with an injection needle 21, a liquid pushing piston 22 and an injection push rod 14 with a ball head for pushing the liquid pushing piston are arranged in the injector, and a push rod spring 15 is sleeved on the injection push rod; the ball end of the injection push rod extends out of the tail part 19 of the syringe and is connected with a push rod connecting device in the gun handle, and a liquid inlet hole 24 is also arranged on the injector 23. The outer middle section of the injector 23 of the vaccine propulsion mechanism is sleeved with a slide block 17 and fixedly connected into an integral structure by a positioning nut 16; a groove 201 is arranged on the upper edge of the sliding block 17, and a positioning pin 20 penetrates through the barrel wall and is embedded into the groove 201. An injection trigger mechanism is arranged at the barrel part of the pistol type fixed seat 27, the injection trigger mechanism comprises a trigger lever 2 extending from the muzzle part to the tail part of the barrel, and the front end of the trigger lever 2 is connected with the neck retainer 1 through an adjusting screw 3 of a positioner; the installation depth of the neck retainer 1 in the head of the trigger lever 2 can be adjusted by screwing the adjusting screw 3: the adjusting screw 3 of the retainer is screwed down, the neck retainer 1 approaches to the trigger lever 2, and the distance between the neck retainer 1 and the injection needle 21 is reduced; otherwise the pitch becomes larger.

The tail part of the gun barrel part is provided with a space for accommodating the force adjusting spring 7 and the trigger sensor 6; a trigger piece 5 is arranged below the trigger sensor 6, and the force adjusting spring 7 and the trigger sensor 6 are both vertically arranged in the tail space of the gun barrel part; the upper end of the force adjusting spring 7 is arranged in the spring adjusting fixed point 8, and the other end of the force adjusting spring is arranged at the tail part of the trigger lever 2; the trigger piece 5 is arranged in a clamping groove at the tail part of the trigger lever 2. User's accessible selects different adjusting spring fixed point 8, adjustment dynamics adjusting spring 7's pulling force size to select suitable dynamics and the feeling of triggering, trigger piece 5 and under dynamics adjusting spring 7's pulling force effect, keep in touch with trigger sensor 6. In this embodiment, the spring adjusting fixing point 8 may be provided in a plurality of numbers, so as to meet different requirements of different operators on the triggering force and the hand feeling. The trigger lever 2 is fixed on the barrel part of the pistol-type fixing seat 27 through a pin shaft 4.

A neck retainer 1 is arranged at the muzzle of the pistol type fixed seat 27, as shown in fig. 4, the neck retainer comprises a spoon-shaped curved surface shell 101 for fixing the neck of the poultry, the tail part of the spoon-shaped curved surface shell 101 is provided with an installation seat 103, the center position of the spoon-shaped curved surface shell 101 is provided with an injection slot 102, and the position of the injection slot 102 corresponds to the injection needle 21; the mounting seat 103 is fixed to the trigger lever 2 of the injection trigger mechanism. The mounting base 103 is provided with scale marks 104. The neck retainer 1 is a protection positioning device specially designed according to the biological structure of the back neck of the young bird, when the head and the back neck of the young bird are backwards attached to the spoon-shaped curved surface shell 101 of the neck retainer 1, the effective and safe subcutaneous injection part of the back neck of the young bird can be exposed out of an injection slot hole 102 in the center of the spoon-shaped curved surface shell 101, and the rest parts are shielded and protected by the spoon-shaped curved surface shell 101. The injection needle 21 is now in the optimum insertion position. The user can easily reach the correct injection position and angle by only correctly placing the back neck of the young bird on the position of the neck retainer 1.

The injection part of the young chick exposed from the injection slot hole 102 of the neck retainer 1 is thin, so the distance between the neck retainer 1 and the injection needle 21 needs to be reduced, otherwise, the needle cannot be correctly inserted into the subcutaneous part due to too large distance, so that the immunization omission is caused, and the skin of the chick can be scratched by the needle tip; the injection part of the young chicks exposed from the injection slot 102 is thicker, so the distance between the neck retainer 1 and the injection needle 21 needs to be increased, otherwise, the too-small distance can cause the too-deep needle insertion, and the needle can penetrate into the muscle and even injure the blood vessel and the bone, thereby causing the death injury of the chicks. The defect of the existing manual injection can be thoroughly overcome by accurately adjusting the injection distance.

When the user holds the chick and pulls its back neck against the scoop structure 101 of the neck retainer 1 and in the direction of the trigger lever 2, the head of the trigger lever 2 is lifted while the trigger piece 5 is away from the trigger sensor 6. When the distance between the trigger piece 5 and the trigger sensor 6 reaches the set sensing distance, the trigger sensor 6 is triggered and sends a signal to the programmable controller.

The second unit of the invention is an injection unit comprising a drive motor and a vaccine propulsion mechanism:

in the embodiment, as shown in fig. 3, the power mechanism of the present invention comprises a driving motor and a pushing link device of the vaccine propulsion mechanism, wherein the driving motor comprises a stepping motor 9, a push-pull arm 11 is fixed on a shaft 10 of the stepping motor, and the push-pull arm 11 is connected with a ball-head rod 13 with a spherical groove through a connecting shaft 12; the vaccine propelling mechanism comprises an injector 23 connected with an injection needle 21, the front end of the injector 23 is provided with a liquid inlet 24, a liquid pushing piston 22 and an injection push rod 14 which pushes the liquid pushing piston and is provided with a ball head at the other end are arranged in the injector, the ball head part of the injection push rod 14 is arranged in a spherical groove of a ball head rod 13, and a push rod spring 15 is sleeved on the injection push rod 14. A position sensing piece 25 is arranged on the push-pull arm 11; a position sensor 26 is also provided adjacent to the push-pull arm 11 to perform the return action.

Workflow of the injection unit:

when the programmable controller receives the signal sent by the trigger sensor 6, the programmable controller commands the stepping motor shaft 10 of the stepping motor 9 to rotate counterclockwise, so as to drive the push-pull arm 11 and the ball rod 13 to move together, and the injection push rod 14 is pushed forward quickly by the ball rod 13, so as to drive the injector 23 and the slide block 17 to slide quickly towards the neck retainer 1, and the injection needle 21 is pricked under the back neck skin of the chick located at the neck retainer 1 until the slide block 17 is blocked and stopped by the locating pin 20, so that the injection needle 21 is stopped at the subcutaneous position and does not move any more. Thus, the needle pushing action is finished. At this time, the injection push rod 14 is continuously pushed forward under the action of the stepping motor 9, and the push rod spring 15 is compressed, so that the liquid medicine in the syringe 23 is injected into the back subcutaneous part of the neck of the young poultry by the liquid pushing piston 22 through the injection needle 21, and the liquid pushing action is finished.

In the present invention, the dosage of the syringe 23 is precisely controlled by the programmable controller and can be freely adjusted within a certain range. Conventional syringes typically set the maximum volume inside the barrel to the desired dosage by adjusting the maximum limit of the plunger. The user pushes the piston to the bottom, namely, the liquid medicine in the needle cylinder is emptied, so that the required dosage can be reached. If the dosage is required to be adjusted, the position of the piston of the injector must be adjusted. The implementation method of the invention comprises the following steps: the user sets in advance, through the software and the programmable controller, the dose of the drug to be injected, which corresponds precisely to the rotation angle of the stepper motor 9. The rotation angle of the stepping motor 9 determines the stroke of the syringe ball push rod 14 and the liquid pushing piston 22 in the syringe, thereby determining the dosage of the liquid medicine flowing out. If the dosage needs to be adjusted, the dosage can be set on matched software without adjusting hardware.

In order to control the advancing action of the vaccine for injection of the present invention as a variable, a halfway sensor 18 is provided, and when the injector 23 moves forward at a high speed, the syringe tail 19 passes the halfway sensor 18. The tail part 19 of the syringe is higher than the outer wall of the syringe, so that the syringe enters the set induction range of the midway sensor 18, the midway sensor 18 is triggered and sends a signal to the programmable controller, and the programmable controller immediately commands the stepping motor 9 to run at a low speed, so that the subsequent liquid pushing action is carried out at a low speed. The reason for designing the speed change process is that if the stepping motor 9 runs at a high speed all the time, the liquid pushing speed of the push rod 14 of the ball head of the injector is too high, so that the liquid medicine cannot be slowly injected under the skin of the young poultry, but leaks back from the needle eye of the neck of the young poultry, and the dosage of the vaccine received by the young poultry is insufficient, so that the immunization fails.

In this embodiment, the syringe 23 has a liquid inlet 24 at the front end thereof, and the liquid inlet 24 is connected to the vial through a hose in use. After the liquid pushing action is completed, the stepping motor shaft 10 is changed to move in the opposite direction, i.e. rotate clockwise, thereby driving the push-pull arm 11 and the ball rod 13 to move away from the neck retainer 1. At this time, the plunger spring 15 is extended and reset, and pushes the plunger piston 22 to move away from the needle 21, so as to form a negative pressure in the syringe, thereby drawing the liquid medicine into the syringe through the liquid inlet 24. The syringe is filled with the liquid medicine again so as to be used for the next injection action, so that a user does not need to manually fill the liquid medicine, and the continuous injection function is realized.

The operation control block diagram of the present invention is shown in fig. 5.

Claims

1. The poultry vaccine injection device is characterized by comprising a pistol type fixed seat (27), wherein an injection needle head and a vaccine propelling mechanism are arranged in a chamber of the pistol type fixed seat (27); an injection trigger mechanism comprising a trigger sensor and a trigger lever is arranged at the gun barrel part; a neck retainer (1) is arranged at the muzzle of the pistol type fixed seat (27), and the position of the neck retainer corresponds to the position of an injection needle; a cavity for accommodating a power mechanism and a reset mechanism is arranged in the handle of the pistol type fixed seat (27), the power mechanism comprises a driving motor and a pushing connecting rod device of the vaccine propelling mechanism, and the reset mechanism comprises a position sensor and an induction sheet; it also includes a programmable controller for controlling the operation of the trigger motor and giving out the instructions of medicine administration, injection and reset.

2. The avian vaccine injection device according to claim 1, wherein the vaccine propulsion mechanism comprises an injector (23) connected with an injection needle (21), a liquid pushing piston (22) and an injection push rod (14) with a ball head for pushing the liquid pushing piston are arranged in the injector, and a push rod spring (15) is sleeved on the injection push rod; the ball end of the injection push rod extends out of the tail part (19) of the needle cylinder and is connected with a push rod connecting device in the gun handle, and a liquid inlet hole (24) is also arranged on the injector (23).

3. The avian vaccine injection device according to claim 2, wherein the outer middle section of the syringe (23) of the vaccine propulsion mechanism is sleeved with a slide block (17) and fixedly connected as an integral structure by a positioning nut (16); the upper edge of the sliding block (17) is provided with a groove (201), and a positioning pin (20) penetrates through the wall of the gun barrel and is embedded into the groove (201).

4. The device for injecting poultry vaccine as claimed in claim 1, wherein the trigger mechanism for injection is provided at the barrel portion of the pistol mount (27), and the trigger mechanism for injection comprises a trigger lever (2) extending from the muzzle portion to the barrel tail, and the front end of the trigger lever (2) is connected to the neck retainer (1) via a locator adjustment screw (3); the tail part of the gun barrel part is provided with a space for accommodating the force adjusting spring (7) and the trigger sensor (6); a trigger piece (5) is arranged below the trigger sensor (6), and the force adjusting spring (7) and the trigger sensor (6) are both vertically arranged in the tail space of the gun barrel; the upper end of the force adjusting spring (7) is arranged in the spring adjusting fixed point (8), and the other end of the force adjusting spring is arranged at the tail part of the trigger lever (2); the trigger piece (5) is arranged in a clamping groove at the tail part of the trigger lever (2).

5. An avian vaccine injection apparatus as claimed in claim 1, wherein said trigger lever (2) is fixed to the barrel portion of the pistol mount (27) by a pin (4).

6. The avian vaccine injection device according to claim 1, wherein a neck retainer is provided at the muzzle of the pistol mount (27), the neck retainer comprises a spoon-shaped curved surface shell (101) for fixing the neck of the avian, the rear end of the spoon-shaped curved surface shell (101) is provided with a mounting seat (103), an injection slot (102) is provided at the center of the spoon-shaped curved surface shell (101), and the injection slot (102) is positioned corresponding to the injection needle (21); the mounting seat (103) is fixed on a trigger lever (2) of the injection trigger mechanism.

7. An avian vaccine injection apparatus as claimed in claim 6, wherein graduation marks (104) are provided on said mounting seat (103).

8. The device for injecting a vaccine into birds as claimed in claim 1, wherein said actuating means comprises a driving motor and a driving link means of said vaccine propulsion means, said driving motor comprises a stepping motor (9), a push-pull arm (11) is fixed on a shaft (10) of said stepping motor, said push-pull arm (11) is connected to a ball-head rod (13) having a spherical recess through a connecting shaft (12); the vaccine propelling mechanism comprises an injector (23) connected with an injection needle (21), a liquid pushing piston (22) and an injection push rod (14) which pushes the liquid pushing piston and is provided with a ball head at the other end are arranged in the injector, the ball head part of the injection push rod (14) is arranged in a spherical groove of a ball head rod (13), and a push rod spring (15) is sleeved on the injector ball head push rod (14).

9. An avian vaccine injection apparatus as claimed in claim 8, wherein a position sensing plate (25) is provided on said push-pull arm (11); a position sensor (26) is also arranged beside the push-pull arm (11).