Pneumatic injection device for automatic poultry injection machine

Abstract

The utility model provides a pneumatic injection device for an automatic poultry injection machine, which comprises a pneumatic bin body and a pneumatic injection mechanism arranged at one end of the pneumatic bin body, and a cover body capable of being opened and closed is arranged on the pneumatic bin body corresponding to the pneumatic injection mechanism. An injection hole convenient for a needle to enter and exit is formed in the cover body corresponding to the pneumatic injection mechanism; a control mechanism for controlling the pneumatic injection mechanism to work is arranged on the cover body corresponding to one side of the injection hole; the pneumatic injection mechanism comprises an adjusting base arranged on the pneumatic bin body, a main injector and an auxiliary injector, wherein the main injector and the auxiliary injector are arranged on the adjusting base, and the liquid outlet end of the auxiliary injector is communicated with a needle head of the main injector. The pneumatic injection device for the poultry automatic injection machine has the advantages of being simple in structure and easy to adjust and use, the length of the part, capable of extending out of the injection hole, of the needle head can be adjusted according to actual needs, good applicability and universality are achieved, and the vaccination effect and safety of vaccines can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of poultry immunization equipment, in particular to a pneumatic injection device for a poultry automatic injection machine. Background Art

[0002] Hatcheries, breeder farms, and poultry farms often conduct large-scale vaccinations. For example, intensive poultry farms perform eight avian influenza vaccinations annually on 50-day-old poultry. Animal vaccinations are often performed in batches, exacerbating the complexities and workload of traditional handheld syringes, as well as the risk of chick mortality from incorrect injections. Automatic injection machines offer a range of advantages for chick vaccination. They utilize a touch or photoelectric switch for automated puncture and dosing, significantly increasing injection speed.

[0003] An existing Chinese invention patent application numbered CN201210347925.4 discloses an automatic continuous injection device for the simultaneous injection of two drugs into poultry. This device, which belongs to the technical field of poultry syringes, includes two injection systems driven by a push-ejection system. The automatic continuous injection device of the present invention for the simultaneous injection of two drugs into poultry can simultaneously inject both drugs, reducing the number of injections and the trauma of injections for young poultry. While the aforementioned device can achieve automatic continuous vaccine injection, it still suffers from the problem of inconvenient needle extension adjustment, making it difficult for operators to adjust the needle extension length according to actual needs to accommodate the vaccination needs of different poultry species. Utility Model Content

[0004] In view of this, the present invention aims to provide a pneumatic injection device for an automatic poultry injection machine to solve the problem of inconvenience in adjusting the extended length of the needle of the existing injection machine.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0006] A pneumatic injection device for an automatic poultry injection machine comprises a pneumatic housing and a pneumatic injection mechanism disposed at one end of the housing. An openable and closable cover is disposed on the housing at a position corresponding to the pneumatic injection mechanism. An injection hole is disposed on the cover at a position corresponding to the pneumatic injection mechanism to facilitate needle insertion and removal. A control mechanism for controlling the operation of the pneumatic injection mechanism is disposed on the cover at a position corresponding to the injection hole.

[0007] The pneumatic injection mechanism includes an adjustment seat arranged on the pneumatic warehouse body, and a main syringe and a sub-syringe arranged on the adjustment seat, and the liquid outlet end of the sub-syringe is connected to the needle of the main syringe; the main syringe and the sub-syringe are both detachably installed on the adjustment seat, and the adjustment seat is provided with a driving assembly for driving the piston rods of the main syringe and the sub-syringe to extend and retract, and two of the driving assemblies are provided corresponding to the main syringe and the sub-syringe; the adjustment seat is installed on the pneumatic warehouse body by a fixing bolt, and the adjustment seat is provided with a strip hole that cooperates with the fixing bolt, and the length direction of the strip hole is the same as the extension and retraction direction of the needles of the main syringe and the sub-syringe.

[0008] Furthermore, a guide groove is provided in the middle of the adjustment seat, the length direction of the guide groove is the same as the length direction of the strip hole, and a guide block is provided on the pneumatic warehouse body to slide with the guide groove.

[0009] Furthermore, a rack is provided on the adjustment seat at a position corresponding to the guide groove, and a gear member cooperating with the rack is provided on the pneumatic warehouse body, and the gear member is rotatably mounted on the pneumatic warehouse body.

[0010] Furthermore, two guide blocks are provided on the left and right sides corresponding to the gear member, and there is an accommodating gap between the two guide blocks for accommodating the rack.

[0011] Furthermore, an anti-slip gasket is provided on the fixing bolt.

[0012] Furthermore, the driving assembly includes a cylinder arranged on the adjustment seat and a sliding seat arranged at the telescopic end of the cylinder, and the sliding seat is detachably connected to the piston rod of the main syringe or the auxiliary syringe.

[0013] Furthermore, a friction plate cooperating with the sliding seat is provided on the adjustment seat at a position corresponding to the bottom of the sliding seat.

[0014] Furthermore, a micro switch for counting is provided on the adjustment seat at a position corresponding to one side of the sliding seat, and a toggle member cooperating with the micro switch is provided on the sliding seat.

[0015] Furthermore, the toggle member is mounted on the sliding seat via at least two connecting screws, and the toggle member is provided with an elongated hole that cooperates with the connecting screws; the length direction of the elongated hole is the same as the moving direction of the sliding seat.

[0016] Furthermore, the adjustment seat is provided with a main mounting seat for mounting the syringe barrel of the main syringe, and a secondary mounting seat for mounting the syringe barrel of the secondary syringe, the main mounting seat is slidably mounted on the adjustment seat, and the sliding direction of the main mounting seat is the same as the telescopic direction of the piston rod, and the end of the adjustment seat facing the injection hole is provided with a buffer block for limiting the main mounting seat; the main mounting seat and the secondary mounting seat are both provided with an assembly groove that cooperates with the syringe; the main syringe and the secondary syringe syringe are both provided with a locking piece at one end facing the drive assembly, and a flat portion at the other end, and the main mounting seat and the secondary mounting seat are both provided with a card slot that cooperates with the locking piece, and the card slot is connected to the assembly slot; the positions corresponding to the flat portion on the main mounting seat and the secondary mounting seat are provided with a pressure strip that cooperates with the flat portion, and the pressure strip can be detachably mounted on the main mounting seat or the secondary mounting seat.

[0017] Compared with the prior art, the pneumatic injection device for poultry automatic injection machine described in the present invention has the following advantages:

[0018] The pneumatic injection device for poultry automatic injection machines described in this utility model has the advantages of simple structure, ease of adjustment, and ease of use. The length of the needle extending from the injection port can be adjusted according to actual needs, offering excellent applicability and versatility, thereby improving the effectiveness and safety of vaccination. By providing a strip-shaped hole in the adjustment seat that mates with a fixing bolt, the operator can loosen the fixing bolt and move the adjustment seat along the strip-shaped hole, thereby adjusting the length of the main syringe needle extending from the injection port to accommodate different poultry injection needs. This improves the injection effectiveness of the pneumatic injection device and ensures the safety of poultry during injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 This is a schematic structural diagram of a pneumatic injection device for an automatic poultry injection machine according to an embodiment of the present utility model;

[0021] Figure 2 This is a schematic structural diagram of an adjustment seat in a pneumatic injection device for an automatic poultry injection machine according to an embodiment of the present utility model;

[0022] Figure 3 This is a structural schematic diagram of the guide groove on the adjustment seat of a pneumatic injection device for an automatic injection machine for poultry according to an embodiment of the present utility model;

[0023] Figure 4 This is a structural schematic diagram of a pneumatic chamber in a pneumatic injection device for an automatic poultry injection machine according to an embodiment of the present utility model.

[0024] Description of reference numerals:

[0025] 1. Pneumatic chamber body; 2. Cover body; 3. Control mechanism; 4. Injection hole; 5. Gear part; 6. Guide block; 7. Adjustment seat; 8. Fixing bolt; 9. Strip hole; 10. Guide groove; 11. Rack; 12. Anti-slip gasket; 13. Buffer block; 14. Needle; 15. Main syringe; 16. Fixing screw; 17. Main mounting seat; 18. Micro switch; 19. Piston rod; 20. Connecting hose; 21. Auxiliary syringe; 22. Pressure strip; 23. Auxiliary mounting seat; 24. Locking piece; 25. Friction plate; 26. Toggle piece; 27. Long hole; 28. Sliding seat; 29. ​​Cylinder. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0029] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0030] A pneumatic injection device for an automatic poultry injection machine, such as Figures 1 to 4As shown, it includes a pneumatic tank body 1 and a pneumatic injection mechanism arranged at one end of the pneumatic tank body 1. The pneumatic tank body 1 is provided with an openable and closable cover body 2 at a position corresponding to the pneumatic injection mechanism. The cover body 2 is provided with an injection hole 4 at a position corresponding to the pneumatic injection mechanism to facilitate the entry and exit of the needle 14. The cover body 2 is provided with a control mechanism 3 for controlling the operation of the pneumatic injection mechanism at a position corresponding to one side of the injection hole 4.

[0031] Specifically, the cover body 2 can be rotatably mounted on the pneumatic bin body 1 by means of hinges. The pneumatic bin body 1 and the control mechanism 3 can both adopt relevant equipment of existing automatic injection machines. The pneumatic bin body 1 is used to supply air to the pneumatic injection mechanism, and the control mechanism 3 is used to control the pneumatic injection mechanism. These are all existing technologies. The present invention does not involve improvements to the pneumatic bin body 1 and the control mechanism 3. The main innovation of the present invention lies in the improvement of the pneumatic injection mechanism, so it will not be repeated here.

[0032] The above-mentioned pneumatic injection mechanism includes an adjustment seat 7 arranged on the pneumatic warehouse body 1, and a main syringe 15 and a sub-syringe 21 arranged on the adjustment seat 7, and the liquid outlet end of the sub-syringe 21 is connected to the needle 14 of the main syringe 15; the main syringe 15 and the sub-syringe 21 can be detachably installed on the adjustment seat 7, and the adjustment seat 7 is provided with a driving assembly for driving the piston rod 19 of the main syringe 15 and the sub-syringe 21 to extend and retract, and two of the driving assemblies are provided corresponding to the main syringe 15 and the sub-syringe 21; the adjustment seat 7 is installed on the pneumatic warehouse body 1 by a fixing bolt 8, and the adjustment seat 7 is provided with a strip hole 9 that cooperates with the fixing bolt 8, and the length direction of the strip hole 9 is the same as the extension and retraction direction of the needle 14 of the main syringe 15 and the sub-syringe 21.

[0033] For example, both the primary syringe 15 and the secondary syringe 21 can be conventional poultry vaccine syringes, wherein the liquid outlet of the secondary syringe 21 is connected to the needle 14 at the liquid outlet of the primary syringe 15 via a connecting hose 20 (e.g., a rubber hose or silicone hose) to achieve liquid supply. Furthermore, those skilled in the art may also select other methods for connecting the primary syringe 15 and the secondary syringe 21 according to actual needs, which will not be described in detail here.

[0034] In actual use, two, three, or more fixing bolts 8 can be provided around the adjustment seat 7, corresponding to each other. The pneumatic chamber body 1 is provided with threaded holes that mate with the fixing bolts 8. The provision of multiple fixing bolts 8 improves the retaining effect of the fixing bolts 8 on the adjustment seat 7, ensuring that the adjustment seat 7 is less likely to move during operation of the drive assembly. Furthermore, by providing strip-shaped holes 9 on the adjustment seat 7 that mate with the fixing bolts 8, the operator can loosen the fixing bolts 8 and move the adjustment seat 7 along the strip-shaped holes 9, thereby adjusting the length of the needle 14 of the main syringe 15 that can extend from the injection hole 4 to accommodate different poultry injection needs. This improves the injection efficiency of this pneumatic injection device and ensures the safety of the poultry during injection.

[0035] Preferably, a guide groove 10 is provided in the middle of the adjustment seat 7, the length direction of the guide groove 10 being the same as the length direction of the strip-shaped hole 9, and a guide block 6 is provided on the pneumatic chamber body 1 to slide in conjunction with the guide groove 10. Exemplarily, the guide block 6 is fixed to the pneumatic chamber body 1. By utilizing the sliding engagement of the guide block 6 with the guide groove 10, the adjustment seat 7 can be effectively limited and guided, thereby preventing the adjustment seat 7 from deflecting during movement, ensuring that the needle 14 of the main syringe 15 can always be aligned with the injection hole 4, and reducing the difficulty of adjusting the adjustment seat 7.

[0036] During actual application, a rack 11 is provided at a position corresponding to the guide groove 10 on the adjustment seat 7, and a gear member 5 that cooperates with the rack 11 is provided on the pneumatic chamber body 1, and the gear member 5 is rotatably mounted on the pneumatic chamber body 1. For example, the rack 11 can be fixed to the adjustment seat 7 by screws, and the gear member 5 includes a connecting rod and a driving gear fixed on the connecting rod, wherein the driving gear extends into the guide groove 10, one end of the connecting rod is connected to the driving gear, and the other end extends out of the pneumatic chamber body 1, so that the operator can rotate the connecting rod to drive the driving gear to rotate, thereby utilizing the driving gear and the rack 11 to drive the adjustment seat 7 to achieve precise movement and adjustment. In addition, those skilled in the art can also select other gear members 5 and corresponding installation methods according to actual needs to achieve meshing cooperation between the gear member 5 and the rack 11, which will not be described here.

[0037] Preferably, two guide blocks 6 are provided on the left and right sides of the gear member 5, with a gap between the two guide blocks 6 to accommodate the rack 11. Specifically, the length of the gap can be greater than or equal to the length of the rack 11 to meet the movement and adjustment requirements of the adjustment seat 7. The spacing between the two guide blocks 6 also helps improve the guiding and limiting effect of the guide blocks 6 on the adjustment seat 7.

[0038] Preferably, an anti-slip pad 12 is provided on the fixing bolt 8. The provision of the anti-slip pad 12 is conducive to further improving the limiting and fixing effect of the fixing bolt 8 on the adjustment seat 7, preventing the adjustment seat 7 from accidentally moving and causing the extension length of the needle 14 to change, thereby ensuring the stability and reliability of the pneumatic injection device during the injection process.

[0039] Preferably, the drive assembly includes a cylinder 29 provided on the adjustment seat 7, and a sliding seat 28 provided at the telescopic end of the cylinder 29, and the sliding seat 28 is detachably connected to the piston rod 19 of the main syringe 15 or the auxiliary syringe 21. Exemplarily, the cylinder 29 can be connected to the air supply system of the pneumatic chamber 1 to realize the action of driving the cylinder 29, which will not be described in detail here. Among them, the fixed end of the cylinder 29 can be fixed to the adjustment seat 7 by screws, and the sliding seat 28 can also be fixed to the telescopic end of the cylinder 29 by screws. Those skilled in the art can also choose other ways to install the cylinder 29 and the sliding seat 28 according to actual needs, so as to realize that the telescopic end of the cylinder 29 drives the sliding seat 28 to move stably, which will not be described in detail here.

[0040] In actual use, a stopper can be installed at the end of the piston rod 19. The stopper and the piston rod 19 are threadedly connected. The sliding seat 28 is provided with a stopper that cooperates with the stopper. The stopper engages with the stopper in a snap-fitting manner, thereby achieving a detachable connection between the piston rod 19 and the sliding seat 28. This facilitates the operator's disassembly and assembly of the primary syringe 15 and the secondary syringe 21, reducing the difficulty of use and maintenance of the device. In addition, those skilled in the art may also select other methods to achieve a detachable connection between the sliding seat 28 and the piston rod 19 according to actual needs, which will not be described in detail here.

[0041] Preferably, a friction plate 25 is provided on the adjustment seat 7 at a position corresponding to the position below the sliding seat 28, which cooperates with the sliding seat 28. For example, the friction plate 25 can be made of PP. The provision of the friction plate 25 helps improve the stability and reliability of the movement of the sliding seat 28. Furthermore, in actual use, the friction plate 25 can also be provided with a groove that slidably cooperates with the sliding seat 28.

[0042] Preferably, a micro switch 18 for counting is further provided on the adjustment seat 7 at a position corresponding to one side of the sliding seat 28, and a toggle member 26 is provided on the sliding seat 28 to cooperate with the micro switch 18. For example, the micro switch 18 can be an existing mechanical switch, which can be fixed to the adjustment seat 7 by screws. By utilizing the micro switch 18 and the toggle member 26 to cooperate with each other, the movement of the sliding seat 28 to this position can be detected, thereby determining the number of injections of the main syringe 15 and the auxiliary syringe 21, respectively, to facilitate the operator to count.

[0043] In actual use, the toggle member 26 is mounted on the sliding seat 28 via at least two connecting screws. The toggle member 26 is provided with an elongated hole 27 that mates with the connecting screws. The length of the elongated hole 27 is aligned with the direction of movement of the sliding seat 28. For example, two connecting screws may be provided, and the sliding seat 28 is provided with screw holes that mate with the connecting screws. Using at least two connecting screws to mount the toggle member 26 helps improve the stability of the toggle member 26 on the sliding seat 28, ensuring that the toggle member 26 can continuously and stably mate with the microswitch 18 to achieve counting. Furthermore, by providing the elongated hole 27 on the toggle member 26, the operator can adjust the position of the toggle member 26 on the sliding seat 28 according to actual needs, ensuring that the toggle member 26 can better mate with the microswitch 18, thereby improving counting accuracy.

[0044] Preferably, the adjustment seat 7 is provided with a main mounting seat 17 for mounting the syringe of the main syringe 15, and a secondary mounting seat 23 for mounting the syringe of the secondary syringe 21, the main mounting seat 17 is slidably mounted on the adjustment seat 7, and the sliding direction of the main mounting seat 17 is the same as the telescopic direction of the piston rod 19, and the end of the adjustment seat 7 facing the injection hole 4 is provided with a buffer block 13 for limiting the main mounting seat 17; the main mounting seat 17 and the secondary mounting seat 23 are both provided with an assembly groove that cooperates with the syringe; the main syringe 15 and the secondary syringe 21 syringe are both provided with a locking piece 24 at one end facing the drive assembly, and a flat portion at the other end, and the main mounting seat 17 and the secondary mounting seat 23 are both provided with a card slot that cooperates with the locking piece 24, and the card slot is connected to the assembly slot; the positions corresponding to the flat portion on the main mounting seat 17 and the secondary mounting seat 23 are provided with a pressure strip 22 that cooperates with the flat portion, and the pressure strip 22 can be detachably mounted on the main mounting seat 17 or the secondary mounting seat 23.

[0045] Specifically, the pressure strip 22 can be fixed to the corresponding main mounting seat 17 or the auxiliary mounting seat 23 by means of the fixing screw 16. In addition, the locking member 24 can be threadedly connected to the syringe. By installing the pressure strip 22 and the locking member 24 on the syringe, the pressure strip 22 can effectively limit the vertical position of the syringe, while the locking member 24 can effectively limit the horizontal position of the syringe by engaging with the card slot, thereby improving the stability of the syringe on the main mounting seat 17 or the auxiliary mounting seat 23.

[0046] In actual use, the secondary mounting seat 23 can be fixed to the adjustment seat 7 by screws, and the adjustment seat 7 can be provided with a guide groove 10 that slidably cooperates with the main mounting seat 17 to improve the sliding stability of the main mounting seat 17. The buffer block 13 can also be fixed to the adjustment seat 7 by screws to block the guide groove 10, thereby limiting the movement of the main mounting seat 17 and preventing the main mounting seat 17 from falling out of the guide groove 10.

[0047] The working principle of this pneumatic injection device is as follows:

[0048] The operator places the poultry at the injection hole 4 on the cover plate and triggers the control mechanism 3. The control mechanism 3 controls the air supply system in the pneumatic chamber 1 to drive the cylinder 29 to operate, and the cylinder 29 drives the sliding seat 28 to move, and the sliding seat 28 drives the main syringe 15 to move to achieve injection. Among them, another cylinder 29 can also be used to drive the auxiliary syringe 21 to achieve the injection of two drugs. It should be noted that the adjustment seat 7 needs to be adjusted before vaccination. When adjusting, the fixing bolt 8 can be loosened first, and then the gear part 5 is rotated to drive the adjustment seat 7 to move into place, and then the fixing bolt 8 can be tightened again. The operation is very simple.

[0049] The pneumatic injection device for poultry automatic injection machines described in this utility model has the advantages of simple structure, ease of adjustment, and ease of use. The length of the needle extending from the injection port can be adjusted according to actual needs, offering excellent applicability and versatility, thereby improving the effectiveness and safety of vaccination. By providing a strip-shaped hole in the adjustment seat that mates with a fixing bolt, the operator can loosen the fixing bolt and move the adjustment seat along the strip-shaped hole, thereby adjusting the length of the main syringe needle extending from the injection port to accommodate different poultry injection needs. This improves the injection effectiveness of the pneumatic injection device and ensures the safety of poultry during injection.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pneumatic injection device for an automatic injection machine for poultry, comprising a pneumatic housing (1) and a pneumatic injection mechanism arranged at one end of the pneumatic housing (1), a cover (2) that can be opened and closed is provided on the pneumatic housing (1) at a position corresponding to the pneumatic injection mechanism, an injection hole (4) that facilitates the entry and exit of a needle (14) is provided on the cover (2) at a position corresponding to the pneumatic injection mechanism, and a control mechanism (3) for controlling the operation of the pneumatic injection mechanism is provided on the cover (2) at a position corresponding to one side of the injection hole (4), characterized in that: The pneumatic injection mechanism comprises an adjustment seat (7) provided on a pneumatic chamber body (1), and a main syringe (15) and a sub-syringe (21) provided on the adjustment seat (7), wherein the liquid outlet end of the sub-syringe (21) is communicated with the needle (14) of the main syringe (15); the main syringe (15) and the sub-syringe (21) are both detachably mounted on the adjustment seat (7), and the adjustment seat (7) is provided with a driving assembly for driving the piston rods (19) of the main syringe (15) and the sub-syringe (21) to extend and retract, wherein two driving assemblies are provided corresponding to the main syringe (15) and the sub-syringe (21); the adjustment seat (7) is mounted on the pneumatic chamber body (1) via a fixing bolt (8), and the adjustment seat (7) is provided with a strip hole (9) matched with the fixing bolt (8), and the length direction of the strip hole (9) is the same as the extension and retraction direction of the needles (14) of the main syringe (15) and the sub-syringe (21).

2. A pneumatic injection device for poultry automatic injection machines according to claim 1, characterized in that: A guide groove (10) is provided in the middle of the adjustment seat (7), and the length direction of the guide groove (10) is the same as the length direction of the strip hole (9). A guide block (6) is provided on the pneumatic warehouse body (1) and is slidably matched with the guide groove (10).

3. A pneumatic injection device for poultry automatic injection machines according to claim 2, characterized in that: A rack (11) is provided on the adjustment seat (7) at a position corresponding to the guide groove (10), and a gear member (5) cooperating with the rack (11) is provided on the pneumatic bin body (1), and the gear member (5) is rotatably mounted on the pneumatic bin body (1).

4. A pneumatic injection device for an automatic poultry injection machine according to claim 3, characterized in that: Two guide blocks (6) are provided on the left and right sides corresponding to the gear member (5), and there is an accommodating gap between the two guide blocks (6) for accommodating the rack (11).

5. The pneumatic injection device for poultry automatic injection machine according to claim 1, characterized in that: An anti-slip pad (12) is provided on the fixing bolt (8).

6. The pneumatic injection device for poultry automatic injection machine according to claim 1, characterized in that: The driving assembly comprises a cylinder (29) arranged on an adjustment seat (7) and a sliding seat (28) arranged at the telescopic end of the cylinder (29); the sliding seat (28) is detachably connected to the piston rod (19) of the main syringe (15) or the auxiliary syringe (21).

7. A pneumatic injection device for an automatic poultry injection machine according to claim 6, characterized in that: A friction plate (25) that cooperates with the sliding seat (28) is provided on the adjustment seat (7) at a position corresponding to the lower portion of the sliding seat (28).

8. The pneumatic injection device for poultry automatic injection machine according to claim 6, characterized in that: A micro switch (18) for counting is also provided on the adjustment seat (7) at a position corresponding to one side of the sliding seat (28), and a toggle member (26) cooperating with the micro switch (18) is provided on the sliding seat (28).

9. The pneumatic injection device for poultry automatic injection machine according to claim 8, characterized in that: The toggle member (26) is mounted on the sliding seat (28) via at least two connecting screws. The toggle member (26) is provided with an elongated hole (27) that cooperates with the connecting screws. The length direction of the elongated hole (27) is the same as the moving direction of the sliding seat (28).

10. A pneumatic injection device for a poultry automatic injection machine according to any one of claims 6 to 9, characterized in that: The adjusting seat (7) is provided with a main mounting seat (17) for mounting the syringe of the main syringe (15), and a secondary mounting seat (23) for mounting the syringe of the secondary syringe (21). The main mounting seat (17) is slidably mounted on the adjusting seat (7). The sliding direction of the main mounting seat (17) is the same as the telescopic direction of the piston rod (19). A buffer block (13) for limiting the main mounting seat (17) is provided on one end of the adjusting seat (7) facing the injection hole (4). Both the main mounting seat (17) and the secondary mounting seat (23) are provided with a The assembly groove is provided; the ends of the syringe barrels of the main syringe (15) and the auxiliary syringe (21) facing the drive assembly are both provided with a locking piece (24), and the other ends are both provided with a flat portion; the main mounting seat (17) and the auxiliary mounting seat (23) are both provided with a card slot that cooperates with the locking piece (24), and the card slot is communicated with the assembly groove; the positions of the main mounting seat (17) and the auxiliary mounting seat (23) corresponding to the flat portion are both provided with a pressure strip (22) that cooperates with the flat portion, and the pressure strip (22) is detachably mounted on the main mounting seat (17) or the auxiliary mounting seat (23).

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