Apparatus and method for the preparation of a low-irritation suspension injection

Abstract

The application discloses a preparation device and method of low irritation suspension injection, which comprises a shell, a feeding pipe and a discharging pipe are arranged on the shell, a drainage cylinder assembly is arranged in the inner cavity of the shell, a connecting rod assembly is connected with the drainage cylinder assembly, a driving assembly is arranged on the shell and is in transmission connection with the connecting rod assembly, and a turbulence vane assembly is arranged on the outer wall of the drainage cylinder assembly. The raw materials in the shell are sheared by the turbulence vane assembly, meanwhile, the piston reciprocates up and down in the inner cylinder, the raw materials in the shell are sucked into the inner cylinder from the bottom discharging port, and then the raw materials in the inner cylinder are discharged from the liquid inlet and are sheared again by the turbulence vane assembly. In this way, the raw materials are uniformly mixed, and the phenomenon that the needle is blocked during the injection of the obtained injection is effectively avoided.

Description

Technical Field

[0001] This invention relates to the field of veterinary drug injection preparation technology, specifically to an apparatus and method for preparing a low-irritation suspension injection. Background Technology

[0002] In veterinary medicine, low-irritant suspension injections are commonly used. Commonly used low-irritant suspension injections include ceftiofur hydrochloride, which is used for bacterial respiratory infections in livestock such as pigs, as well as infections such as Escherichia coli and Salmonella in poultry such as chickens.

[0003] Ceftiofur hydrochloride suspension injection typically requires a preparative apparatus. Traditional apparatus involves feeding the raw materials into a shear-dispersing device for homogenization. However, some preparative apparatuses have limitations in processing the powdered components of the raw materials, failing to adequately refine and mix them properly. This powder tends to settle at the bottom of the apparatus, leading to needle clogging during injection and significantly impacting efficacy. Therefore, we propose a preparative apparatus and method for a low-irritation suspension injection. Summary of the Invention

[0004] The purpose of this invention is to provide an apparatus and method for preparing a low-irritation suspension injection, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A device for preparing a low-irritant suspension injection includes a housing, on which an inlet pipe and an outlet pipe are provided, and further includes a drainage tube assembly disposed in the inner cavity of the housing, a connecting rod assembly connected to the drainage tube assembly, a drive assembly disposed on the housing and pulsatingly connected to the connecting rod assembly, and a baffle assembly disposed on the outer wall of the drainage tube assembly.

[0007] The drainage tube assembly includes an outer cylinder, an inner cylinder disposed within the inner cavity of the outer cylinder, a piston disposed within the inner cylinder, and a detection and locking control unit disposed at the top of the piston's inner cavity for fixing the inner cylinder and the outer cylinder; the outer and inner cylinders each have multiple sets of drainage ports on their circumferential outer walls, and the bottoms of the outer and inner cylinders each have a drainage port; when the drainage ports of the outer and inner cylinders correspond, the drainage ports of the outer and inner cylinders are staggered.

[0008] The drive assembly drives the connecting rod assembly to rotate the outer and inner cylinders and intermittently drives the piston to move up and down. When the piston moves upward to a preset position, the detection and locking control unit releases the fixation between the inner and outer cylinders and controls the drive assembly to drive the connecting rod assembly to rotate the inner cylinder relative to the outer cylinder, so that the drain ports of the outer and inner cylinders correspond. When the piston moves downward to the initial position, the detection and locking control unit also controls the drive assembly to drive the connecting rod assembly to rotate the inner cylinder to reset, so that the inlets of the outer and inner cylinders correspond.

[0009] A further improvement is that the housing is equipped with a controller, and the detection and locking control unit includes a locking unit and a detection unit;

[0010] The locking part includes a support block disposed on the inner wall of the top of the inner cylinder, an L-shaped movable block that movably passes through the support block, a spring two disposed on the L-shaped movable block to limit the movement of the L-shaped movable block, and an active ring disposed on the piston through an elastic element.

[0011] One end of the L-shaped movable block movably passes through the support block and the inner cylinder side wall and is fitted with a ball bearing 1 that engages with an arc-shaped groove opened on the inner circumference of the outer cylinder. The top of the active ring is provided with an annular groove, and a trapezoidal opening is provided below the annular groove. The trapezoidal opening is used to drive the L-shaped movable block to move the ball bearing 1 away from the arc-shaped groove. The L-shaped movable block is fitted with a ball bearing 2 that fits into the annular groove.

[0012] The detection unit includes a pressure sensor 1 located at the bottom of the support block and a pressure sensor 2 located on the inner wall at the bottom of the inner cylinder;

[0013] The first pressure sensor is used to send a signal to the controller when it contacts the active ring, and the controller controls the drive assembly to rotate the inner cylinder so that the drain ports of the outer cylinder and the inner cylinder correspond. The second pressure sensor is used to send a signal to the controller when it contacts the bottom of the piston, and the controller controls the drive assembly to rotate the inner cylinder so that the inlet ports of the outer cylinder and the inner cylinder correspond.

[0014] A further improvement is that the connecting rod assembly includes a hollow sleeve one with one end fixed to the outer cylinder and the other end penetrating through the top of the housing, a hollow sleeve two disposed inside the hollow sleeve one, and a rack disposed inside the hollow sleeve two.

[0015] One end of the hollow sleeve 2 is fixed to the inner cylinder, and the other end extends to the top of the hollow sleeve 1. One end of the rack is connected to the piston, and the other end extends to the top of the hollow sleeve 2. A spring 1 is sleeved on the outer wall of the rack, and one end of the spring is connected to the outer wall of the rack, and the other end is connected to a washer ring rotatably disposed on the top wall of the inner cavity of the inner cylinder.

[0016] A further improvement is that the drive assembly includes: a mounting housing, a bevel gear set, a gear set one, a toothed gear, a rotary drive device, and a gear set two;

[0017] The mounting shell is disposed on the housing, and an electric device is disposed inside the mounting shell. The output end of the electric device is connected to the driven shaft disposed inside the mounting shell through a bevel gear set. The first gear set is used to drive the driven shaft and the first hollow sleeve. The toothed gear is rotatably disposed in the inner cavity of the mounting shell through a shaft. The shaft and the output end of the electric device are connected through a sprocket drive set. The toothed gear meshes with a rack. The second gear set is used to drive the output end of the rotary drive device and the second hollow sleeve.

[0018] The first pressure sensor causes the controller to shut down the electric device and turn on the rotary drive device; the second pressure sensor causes the controller to turn on the rotary drive device.

[0019] A further improvement is that the detection unit also includes: column one, column two, outer shell, disk one, disk two, and infrared emitter;

[0020] Wherein, one end of column one is connected to the bottom end of the inner cylinder, and the other end movably penetrates the bottom of the outer cylinder; one end of column two is connected to the bottom end of the outer cylinder and movably sleeved on the outside of column one; the outer shell is movably sleeved on the outside of column two and fixedly installed on the inner wall of the bottom of the shell; both disk one and disk two are installed inside the outer shell; disk one is installed at the other end of column one; disk two is installed at the other end of column two and located above disk one; the infrared emitter is embedded on disk one; and infrared receiver one and infrared receiver two, which cooperate with the infrared emitter, are embedded at intervals on disk two.

[0021] When the infrared receiver one receives the infrared transmitter signal, the drain ports of the outer cylinder and the inner cylinder correspond, and the infrared receiver one causes the controller to control the electric device to open and the rotary drive device to close; when the infrared receiver two receives the infrared transmitter signal, the inlet ports of the outer cylinder and the inner cylinder correspond, and the infrared receiver two causes the controller to control the rotary drive device to close.

[0022] A further improvement is that the spoiler assembly includes: a sleeve, a movable rod, and pulverizing teeth;

[0023] The sleeve is connected to the outer wall of the outer cylinder, the movable rod is movably inserted into the outer end of the sleeve and connected to the inner wall of the sleeve through a connecting spring, and the crushing teeth are evenly distributed on the outer walls of the sleeve and the movable rod.

[0024] A further improvement is that the outer circumferential wall of the housing is provided with multiple sets of driven rings that cooperate with the spoiler assembly from top to bottom, and the inner wall of the driven ring is provided with multiple sets of arc-shaped protrusions in an integrated ring array. The end of the movable rod away from the sleeve is embedded with a ball bearing that cooperates with the inner wall of the driven ring and the outer wall of the arc-shaped protrusion.

[0025] A further improvement is that the outer wall of the outer cylinder is provided with a liquid guide cap at the position corresponding to the drain port, which is connected to the drain port. The liquid guide cap is used to guide the raw material discharged from the drain port to the outer wall of the turbulence vane assembly below the drain port.

[0026] A method for preparing a low-irritant suspension injection, utilizing the aforementioned preparation apparatus, specifically includes the following steps:

[0027] S1: The raw materials for preparing the low-irritant suspension injection are added into the shell through the feed pipe. The electric device is turned on and starts working. The electric device drives the hollow sleeve through the gear set one, and the hollow sleeve one drives the outer cylinder. The outer cylinder drives the inner cylinder to rotate through the L-shaped movable block. During rotation, the outer cylinder stirs the raw materials through the baffle assembly. The movable rod in the baffle assembly moves intermittently relative to the sleeve when rotating, cooperating with the arc-shaped protrusion, to shear the powder in the raw materials.

[0028] S2: Simultaneously, the electric equipment operates by driving a toothed gear via a sprocket transmission assembly. This toothed gear drives a rack to move a piston upwards, drawing raw material from the inlet into the inner cylinder cavity. The upward movement of the piston, through the drive ring, moves the L-shaped movable block inwards, releasing the inner and outer cylinders from their fixation. Simultaneously, the drive ring contacts pressure sensor one, which sends a signal to the controller. The controller then stops the electric equipment and starts the rotary drive equipment. The rotary drive equipment, through gear set two, drives the hollow sleeve two to rotate the inner cylinder relative to the outer cylinder until infrared receiver one receives the infrared transmitter signal. At this point, the drain ports of the outer and inner cylinders are in the corresponding state, and the controller controls the electric... When the rotating device is turned on and the rotary drive device is turned off, the toothless section of the outer wall of the toothed gear continues to rotate, corresponding to the rack. Under the action of spring one, the rack drives the piston to return to its original position. At this time, the L-shaped movable block returns to its original position, fixing the inner and outer cylinders. The liquid in the inner cylinder is discharged under the action of the piston's compression and the centrifugal force of the rotation of the outer and inner cylinders. The discharged liquid is sheared again by contacting the turbulence vane assembly under the action of the liquid guide cap. When the piston returns to its original position and the contact column contacts the pressure sensor two, the controller controls the rotary drive device to turn on until the infrared receiver two receives the infrared transmitter signal. At this time, the liquid inlets of the outer and inner cylinders are in the corresponding state, and the controller controls the rotary drive device to turn off.

[0029] S3: After the raw material is processed in the shell for 1-3 hours, it is discharged through the discharge pipe for use.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] This invention comprises a shell, a drainage cylinder assembly, a connecting rod assembly, a drive assembly, and a baffle assembly. The drive assembly drives the connecting rod assembly to rotate the drainage cylinder assembly, which in turn shears the raw material inside the shell through the baffle assembly, resulting in uniform mixing. Simultaneously, while the drive assembly rotates the drainage cylinder assembly via the connecting rod assembly, it also drives a piston within the drainage cylinder assembly to move up and down within the inner cylinder. During the piston's movement, a detection and locking control unit, in conjunction with the drive assembly, controls the inlet and outlet states of the inner and outer cylinders. When the piston moves upward, the raw material inside the shell is drawn into the inner cylinder from the bottom outlet. When the piston moves downward, and under the influence of centrifugal force, the raw material drawn into the inner cylinder is discharged from the inlet, where it is sheared again by the baffle assembly. This method effectively refines the raw material, ensuring uniform mixing. Furthermore, the intermittent drawing of raw material from the bottom up into the inner cylinder and then discharging it prevents powder from settling at the bottom of the preparation device. This multiple cyclic shearing of the raw material effectively prevents needle clogging during injection, improving the effectiveness of the injection. Attached Figure Description

[0032] Figure 1 This is a cross-sectional view of the structure of the present invention;

[0033] Figure 2 This is a schematic diagram of the drainage tube assembly structure in this invention;

[0034] Figure 3 For the present invention Figure 1 Enlarged view of structure A in the image;

[0035] Figure 4 For the present invention Figure 2 Enlarged schematic diagram of the B-structure;

[0036] Figure 5 This is a cross-sectional view of the active ring structure in this invention;

[0037] Figure 6 This is a schematic diagram of the detection unit structure in the present invention;

[0038] Figure 7 This is a schematic diagram of the sleeve structure in this invention.

[0039] In the diagram: 1. Shell; 2. Feed pipe; 3. Discharge pipe; 4. Hollow sleeve one; 5. Outer cylinder; 51. Arc-shaped groove; 6. Inner cylinder; 7. Drain port; 8. Controller; 9. Hollow sleeve two; 10. Rack; 11. Piston; 12. Driving ring; 121. Annular groove; 122. Trapezoidal port; 13. Spring one; 14. Mounting shell; 15. Bevel gear set; 16. Gear set one; 17. Gear with missing tooth; 18. Rotary drive Equipment; 19. Gear Set II; 20. Liquid Guide Cap; 21. Liquid Inlet; 22. Support Block; 23. L-shaped Movable Block; 24. Pressure Sensor I; 25. Spring II; 26. Column I; 27. Column II; 28. Housing; 29. ​​Disc I; 30. Disc II; 31. Infrared Emitter; 32. Sleeve; 33. Movable Rod; 34. Crushing Tooth; 35. Pressure Sensor II; 36. Driven Ring; 361. Arc-shaped Protrusion. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Example 1

[0042] Please see the appendix Figure 1 - Appendix Figure 2 A device for preparing a low-irritant suspension injection includes a shell 1, with an inlet pipe 2 and an outlet pipe 3 respectively provided on the side wall and bottom of the shell 1, and the outlet pipe 3 is equipped with a valve body.

[0043] It also includes a drainage tube assembly disposed in the inner cavity of the housing 1, a connecting rod assembly connected to the drainage tube assembly, a drive assembly disposed on the housing 1 and connected to the connecting rod assembly in a driving manner, and a turbulence vane assembly disposed on the outer wall of the drainage tube assembly.

[0044] The drainage tube assembly includes an outer cylinder 5, an inner cylinder 6 rotatably disposed within the inner cavity of the outer cylinder 5, a piston 11 movably disposed within the inner cylinder 6, and a detection locking control unit disposed at the top of the inner cavity of the piston 11 for fixing the inner cylinder 6 and the outer cylinder 5.

[0045] The outer cylinder 5, inner cylinder 6, and piston 11 are all connected to the connecting rod assembly. The outer diameter of the inner cylinder 6 is matched with the inner diameter of the outer cylinder 5. Multiple sets of drain ports 7 are provided on the outer circumferential walls of both the outer cylinder 5 and the inner cylinder 6. A liquid inlet 21 is provided at the bottom of both the outer cylinder 5 and the inner cylinder 6, allowing liquid to flow from the attached... Figure 1 It can be seen that the liquid inlet 21 is located on the non-axial side of the outer cylinder 5 or the inner cylinder 6. When the liquid inlets 21 of the outer cylinder 5 and the inner cylinder 6 correspond, the liquid outlets 7 of the outer cylinder 5 and the inner cylinder 6 are staggered.

[0046] The drive assembly drives the connecting rod assembly to rotate the outer cylinder 5 and the inner cylinder 6 and intermittently drives the piston 11 to move up and down, so that the raw material in the shell 1 enters the inner cylinder 6 from the liquid inlet 21 and is discharged from the liquid outlet 7 to the shell 1; when the piston 11 moves upward to the preset position, the detection locking control unit releases the fixation between the inner cylinder 6 and the outer cylinder 5 and controls the drive assembly to drive the connecting rod assembly to rotate the inner cylinder 6 relative to the outer cylinder 5 (at this time the outer cylinder 5 does not rotate), so that the liquid outlets 7 of the outer cylinder 5 and the inner cylinder 6 correspond;

[0047] The detection locking control unit also controls the drive assembly to drive the connecting rod assembly to rotate and reset the inner cylinder 6 when the piston 11 moves downward to the initial position, so that the liquid inlet 21 of the outer cylinder 5 and the inner cylinder 6 correspond.

[0048] Please see the appendix Figure 3 - Appendix Figure 4 Preferably, the side wall of the housing 1 in this embodiment is provided with a controller 8, and the detection locking control unit includes a locking part and a detection part;

[0049] The locking part includes a support block 22 located on the inner wall of the top of the inner cylinder 6, an L-shaped movable block 23 that movably passes through the support block 22, a spring 25 located on the L-shaped movable block 23 to limit the movement of the L-shaped movable block 23, and an active ring 12 located on the top of the piston 11 via an elastic element.

[0050] One end of the L-shaped movable block 23 movably passes through the support block 22 and the side wall of the inner cylinder 6 and is fitted with a ball bearing that engages with the arc-shaped groove 51 opened on the inner circumference of the outer cylinder 5. At this time, the inner cylinder 6 and the outer cylinder 5 are in a fixed state, so that the rotation of the outer cylinder 5 drives the inner cylinder 6 to rotate.

[0051] The top of the active ring 12 is provided with an annular groove 121, and a trapezoidal opening 122 connected to the annular groove 121 is provided below the annular groove 121. The trapezoidal opening 122 is used to drive the L-shaped movable block 23 to drive the first ball to disengage from the arc-shaped slot 51. The outer wall of the vertical part of the L-shaped movable block 23 is embedded with a second ball that fits into the annular groove 121.

[0052] The detection unit includes a pressure sensor 24 located at the bottom of the support block 22 and a pressure sensor 35 located on the inner wall of the bottom of the inner cylinder 6. For example, both pressure sensor 24 and pressure sensor 35 can be pressure sensors of model LDCZL-SY, but are not limited to this model.

[0053] Among them, pressure sensor 24 is used to send a signal to controller 8 when it contacts the active ring 12, and controller 8 controls the drive assembly to drive the inner cylinder 6 to rotate so that the outer cylinder 5 and the drain port 7 of the inner cylinder 6 correspond. Pressure sensor 35 is used to send a signal to controller 8 when it contacts the bottom of piston 11, and controller 8 controls the drive assembly to drive the inner cylinder 6 to rotate so that the outer cylinder 5 and the inlet port 21 of the inner cylinder 6 correspond.

[0054] Please see the appendix Figure 5 As a preferred embodiment, the connecting rod assembly includes a hollow sleeve 4 with one end fixed to the top axis of the outer cylinder 5 and the other end rotatably passing through the top of the housing 1, a hollow sleeve 9 disposed in the hollow sleeve 4 via a bearing, and a rack 10 movably disposed in the hollow sleeve 9.

[0055] The hollow sleeve 4 is connected to the housing 1 by a bearing. One end of the hollow sleeve 9 is fixed to the top axis of the inner cylinder 6, and the other end extends above the hollow sleeve 4. One end of the rack 10 is connected to the top of the piston 11, and the other end extends above the hollow sleeve 9. A spring 13 is fitted on the outer wall of the rack 10, with one end connected to the outer wall of the rack 10 and the other end connected to a washer rotatably located at the top of the inner cavity of the inner cylinder 6. Specifically, the washer engages with an annular T-shaped groove on the inner wall of the top of the inner cylinder 6 via a T-shaped slider on its top. When the rack 10 drives the piston 11 upward, the spring 13 compresses the washer, and subsequently, the spring 13 drives the piston 11 downward to return to its original position.

[0056] As a preferred embodiment, the drive assembly includes: a mounting housing 14, a bevel gear set 15, a gear set one 16, a toothed gear 17, a rotary drive device 18, and a gear set two 19.

[0057] The mounting housing 14 is located on the top of the housing 1. An electric device, such as a motor, is installed inside the mounting housing 14. The output end of the electric device is connected to the driven shaft rotatably located inside the mounting housing 14 via a bevel gear set 15. The bevel gear set 15 consists of two sets of meshing bevel gears. A gear set 16 is used to drive the driven shaft and the hollow sleeve 4. The gear set 16 consists of two sets of meshing gears. The electric device drives the bevel gear set 15, which in turn drives the driven shaft. The driven shaft then drives the hollow sleeve 4 to rotate via the gear set 16.

[0058] The toothless gear 17 is rotatably mounted in the inner cavity of the mounting housing 14 via a shaft. The shaft and the output end of the electric device are connected by a sprocket drive assembly, which includes a sprocket and a chain. The toothless gear 17 meshes with the rack 10. The electric device drives the toothless gear 17 through the sprocket drive assembly. The toothless gear 17 drives the rack 10 to drive the piston 11 upward. When the driving ring 12 pushes the pressure sensor 24 to the preset pressure, the toothless section on the toothless gear 17 corresponds exactly to the rack 10. It should be noted that the driving ring 12 uses an elastic element to contact the piston 11. Therefore, the toothless gear 17 can drive the rack 10 to drive the piston 11, so that the driving ring 12 can push the pressure sensor 24 to the preset pressure. The electric device is, for example, a motor and a reducer.

[0059] The rotary drive device 18 is mounted on an L-shaped frame fixed to the top of the housing 1. The rotary drive device 18 is, for example, a servo motor and a reducer. The gear set 2 19 is used to drive the output end of the rotary drive device 18 and the hollow sleeve 2 9. The gear set 2 19 consists of two sets of meshing gears.

[0060] When pressure sensor 24 contacts the active ring 12, it sends a signal to the controller 8, which then controls the electric device to shut down and the rotary drive device 18 to open, so that the inlets 21 of the outer cylinder 5 and the inner cylinder 6 correspond. When pressure sensor 35 contacts the contact column, it sends a signal to the controller 8, which then controls the rotary drive device 18 to open, so that the outlets 7 of the outer cylinder 5 and the inner cylinder 6 correspond.

[0061] Please see the appendix Figure 6 As a preferred embodiment, the detection unit further includes: column 1 26, column 2 27, outer shell 28, disk 1 29, disk 2 30, and infrared emitter 31;

[0062] Among them, one end of column 1 26 is connected to the bottom axis of inner cylinder 6, and the other end is movably inserted through the bottom of outer cylinder 5. One end of column 27 is connected to the bottom axis of outer cylinder 5 and is movably sleeved on the outside of column 1 26, so that the rotation of column 1 26 and column 27 does not interfere with each other. The outer shell 28 is movably sleeved on the outside of column 27 and fixed on the bottom inner wall of shell 1. Disc 1 29 and disc 2 30 are both located inside the outer shell 28. Disc 1 29 is located at the other end of column 1 26, and disc 2 30 is located at the other end of column 27 and is located above disc 1 29. Infrared emitter 31 is embedded on disc 1 29, and infrared receiver 1 and infrared receiver 2 are embedded at intervals on disc 2 30 to cooperate with infrared emitter 31.

[0063] When infrared receiver one receives the signal from infrared transmitter 31, the drain ports 7 of outer cylinder 5 and inner cylinder 6 are aligned, while the inlets 21 of outer cylinder 5 and inner cylinder 6 are staggered. Infrared receiver one sends a signal to controller 8, which controls the electric device to open and the rotary drive device 18 to close. When infrared receiver two receives the signal from infrared transmitter 31, the drain ports 7 of outer cylinder 5 and inner cylinder 6 are staggered, while the inlets 21 of outer cylinder 5 and inner cylinder 6 are aligned. Infrared receiver two sends a signal to controller 8, which controls the rotary drive device 18 to close.

[0064] As a preferred embodiment, the turbulence blade assembly includes: a sleeve 32, a movable rod 33, and a crushing tooth 34;

[0065] One end of the sleeve 32 is connected to the outer wall of the outer cylinder 5, and one end of the movable rod 33 is movably inserted into the other end of the sleeve 32 and connected to the inner wall of the sleeve 32 through a connecting spring, so that the movable rod 33 can move relative to the sleeve 32, which facilitates the shearing of the raw materials. The crushing teeth 34 are evenly distributed on the outer walls of the sleeve 32 and the movable rod 33.

[0066] Please see the appendix Figure 7 Preferably, in this embodiment, the outer circumferential wall of the shell 1 is provided with multiple sets of driven rings 36 that cooperate with the baffle assembly from top to bottom. The inner wall of the driven ring 36 is provided with multiple sets of arc-shaped protrusions 361 in an integrated ring array. The end of the movable rod 33 away from the sleeve 32 is provided with ball bearings that cooperate with the inner wall of the driven ring 36 and the outer wall of the arc-shaped protrusions 361. When the baffle assembly rotates with the outer cylinder 5, the movable rod 33 intermittently cooperates with the arc-shaped protrusions 361, so that the movable rod 33 can intermittently reciprocate relative to the sleeve 32, thereby improving the shearing quality of the raw material.

[0067] Preferably, in this embodiment, the outer wall of the outer cylinder 5 is provided with a liquid guide cap 20 corresponding to the position of the drain port 7, which communicates with the drain port 7. The liquid guide cap 20 is used to guide the raw material discharged from the drain port 7 to the outer wall of the turbulence vane assembly below the drain port 7, thereby improving the processing quality of the raw material.

[0068] A method for preparing a low-irritant suspension injection, utilizing the aforementioned preparation apparatus, specifically includes the following steps:

[0069] S1: The raw materials for preparing the low-irritant suspension injection are added into the shell 1 through the feed pipe 2. The electric device is turned on and works. The electric device drives the hollow sleeve 4 through the gear set 16. The hollow sleeve 4 drives the outer cylinder 5. The outer cylinder 5 drives the inner cylinder 6 to rotate through the L-shaped movable block 23. When rotating, the outer cylinder 5 stirs the raw materials through the baffle assembly. The movable rod 33 in the baffle assembly moves intermittently relative to the sleeve 32 in cooperation with the arc-shaped protrusion 361 when rotating, and shears the powder in the raw materials.

[0070] S2: While the electric equipment is working, it drives the toothed gear 17 via the sprocket transmission group. The toothed gear 17 drives the rack 10 to drive the piston 11 upward, so that the raw material in the shell 1 is sucked into the inner cavity of the inner cylinder 6 from the liquid inlet 21. The piston 11 drives the L-shaped movable block 23 to move inward through the active ring 12, releasing the fixation between the inner cylinder 6 and the outer cylinder 5. At the same time, the active ring 12 contacts the pressure sensor 24, which sends a signal to the controller 8. The controller 8 controls the electric equipment to stop working and the rotary drive device 18 to work. The rotary drive device 18 drives the hollow sleeve 9 through the gear set 19 to rotate the inner cylinder 6 relative to the outer cylinder 5 until the infrared receiver receives the signal from the infrared transmitter 31. At this time, the drain ports 7 of the outer cylinder 5 and the inner cylinder 6 are in the corresponding state, and the controller 8 controls the control. When the electric device is turned on and the rotary drive device 18 is turned off, the toothless section of the outer wall of the toothed gear 17 continues to rotate, and the rack 10 corresponds to the toothless section of the outer wall. Under the action of the spring 13, the rack 10 drives the piston 11 to return to its original position. At this time, the L-shaped movable block 23 returns to its original position and fixes the inner cylinder 6 and the outer cylinder 5. The liquid in the inner cylinder 6 is discharged under the action of the piston 11 and the centrifugal force of the rotation of the outer cylinder 5 and the inner cylinder 6. The discharged liquid is contacted with the turbulence vane assembly for further shearing under the action of the liquid guide cap 20. When the piston 11 returns to its original position and the contact column contacts the pressure sensor 35, the controller 8 controls the rotary drive device 18 to turn on until the infrared receiver 2 receives the signal from the infrared transmitter 31. At this time, the liquid inlets 21 of the outer cylinder 5 and the inner cylinder 6 are in the corresponding state, and the controller 8 controls the rotary drive device 18 to turn off.

[0071] S3: After the raw material is processed in the shell 1 for 1-3 hours, it is discharged through the discharge pipe 3 for use.

[0072] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for preparing a low-irritation suspension injection, comprising a housing (1), wherein the housing (1) is provided with an inlet pipe (2) and an outlet pipe (3), characterized in that, It also includes a diversion tube assembly disposed in the inner cavity of the housing (1), a connecting rod assembly connected to the diversion tube assembly, a drive assembly disposed on the housing (1) and connected to the connecting rod assembly, and a turbulence vane assembly disposed on the outer wall of the diversion tube assembly. The drainage tube assembly includes an outer cylinder (5), an inner cylinder (6) located inside the outer cylinder (5), a piston (11) located inside the inner cylinder (6), and a detection locking control unit located at the top of the piston (11) for fixing the inner cylinder (6) and the outer cylinder (5). The outer circumferential outer walls of the outer cylinder (5) and the inner cylinder (6) are provided with multiple sets of drain ports (7), and the bottom of the outer cylinder (5) and the inner cylinder (6) are provided with inlets (21). When the inlets (21) of the outer cylinder (5) and the inner cylinder (6) correspond, the drain ports (7) of the outer cylinder (5) and the inner cylinder (6) are staggered. The drive assembly drives the connecting rod assembly to rotate the outer cylinder (5) and the inner cylinder (6) and intermittently drives the piston (11) to move up and down. When the piston (11) moves upward to the preset position, the detection and locking control unit releases the fixation between the inner cylinder (6) and the outer cylinder (5) and controls the drive assembly to drive the connecting rod assembly to rotate the inner cylinder (6) relative to the outer cylinder (5), so that the drain ports (7) of the outer cylinder (5) and the inner cylinder (6) correspond. When the piston (11) moves downward to the initial position, the detection and locking control unit also controls the drive assembly to drive the connecting rod assembly to rotate the inner cylinder (6) to reset, so that the inlets (21) of the outer cylinder (5) and the inner cylinder (6) correspond. The housing (1) is provided with a controller (8), and the detection and locking control unit includes a locking part and a detection part; wherein, the locking part includes a support block (22) provided on the inner wall of the top of the inner cylinder (6), an L-shaped movable block (23) that movably passes through the support block (22), a second spring (25) provided on the L-shaped movable block (23) to limit the movement of the L-shaped movable block (23), and an active ring (12) provided on the piston (11) through an elastic element; One end of the L-shaped movable block (23) movably passes through the support block (22) and the side wall of the inner cylinder (6) and is fitted with a ball bearing 1 that engages with the arc-shaped groove (51) opened on the inner circumference of the outer cylinder (5). The top of the active ring (12) is provided with an annular groove (121), and a trapezoidal opening (122) is provided below the annular groove (121). The trapezoidal opening (122) is used to drive the L-shaped movable block (23) to move the ball bearing 1 away from the arc-shaped groove (51). The L-shaped movable block (23) is fitted with a ball bearing 2 that fits against the annular groove (121). The detection unit includes a pressure sensor 1 (24) located at the bottom of the support block (22) and a pressure sensor 2 (35) located on the inner wall at the bottom of the inner cylinder (6). The pressure sensor 1 (24) is used to send a signal to the controller (8) when it contacts the active ring (12), and the controller (8) controls the drive assembly to drive the inner cylinder (6) to rotate so that the drain ports (7) of the outer cylinder (5) and the inner cylinder (6) correspond. The pressure sensor 2 (35) is used to send a signal to the controller (8) when it contacts the bottom of the piston (11), and the controller (8) controls the drive assembly to drive the inner cylinder (6) to rotate so that the inlet ports (21) of the outer cylinder (5) and the inner cylinder (6) correspond.

2. The preparation apparatus according to claim 1, characterized in that: The connecting rod assembly includes a hollow sleeve one (4) with one end fixed to the outer cylinder (5) and the other end penetrating the top of the shell (1), a hollow sleeve two (9) disposed in the hollow sleeve one (4), and a rack (10) disposed in the hollow sleeve two (9). One end of the hollow sleeve 2 (9) is fixed to the inner cylinder (6), and the other end extends to the top of the hollow sleeve 1 (4). One end of the rack (10) is connected to the piston (11), and the other end extends to the top of the hollow sleeve 2 (9). The outer wall of the rack (10) is fitted with a spring 1 (13), and one end of the spring is connected to the outer wall of the rack (10), and the other end is connected to a washer ring rotatably disposed on the top wall of the inner cavity of the inner cylinder (6).

3. The preparation apparatus according to claim 2, characterized in that: The drive assembly includes: a mounting housing (14), a bevel gear set (15), a gear set one (16), a toothed gear (17), a rotary drive device (18), and a gear set two (19); The mounting shell (14) is located on the housing (1). An electric device is installed inside the mounting shell (14). The output end of the electric device is connected to the driven shaft inside the mounting shell (14) via a bevel gear set (15). The first gear set (16) is used to drive the driven shaft and the first hollow sleeve (4). The toothed gear (17) is rotatably located in the inner cavity of the mounting shell (14) via a shaft. The shaft and the output end of the electric device are connected via a sprocket drive set. The toothed gear (17) meshes with the rack (10). The second gear set (19) is used to drive the output end of the rotary drive device (18) and the second hollow sleeve (9). The first pressure sensor (24) causes the controller (8) to control the electric device to shut down and the rotary drive device (18) to open; the second pressure sensor (35) causes the controller (8) to control the rotary drive device (18) to open.

4. The preparation apparatus according to claim 3, characterized in that: The detection unit also includes: column one (26), column two (27), outer shell (28), disk one (29), disk two (30), and infrared emitter (31); One end of column one (26) is connected to the bottom end of the inner cylinder (6), and the other end is movably inserted through the bottom of the outer cylinder (5). One end of column two (27) is connected to the bottom end of the outer cylinder (5) and is movably sleeved on the outside of column one (26). The outer shell (28) is movably sleeved on the outside of column two (27) and fixed on the bottom inner wall of the shell (1). Both disk one (29) and disk two (30) are located inside the outer shell (28). Disk one (29) is located at the other end of column one (26), and disk two (30) is located at the other end of column two (27) and above disk one (29). The infrared emitter (31) is embedded on disk one (29), and infrared receiver one and infrared receiver two that cooperate with the infrared emitter (31) are embedded at intervals on disk two (30). When the infrared receiver one receives the signal from the infrared transmitter (31), the drain ports (7) of the outer cylinder (5) and the inner cylinder (6) correspond, and the infrared receiver one causes the controller (8) to control the electric device to open and the rotary drive device (18) to close; when the infrared receiver two receives the signal from the infrared transmitter (31), the inlet ports (21) of the outer cylinder (5) and the inner cylinder (6) correspond, and the infrared receiver two causes the controller (8) to control the rotary drive device (18) to close.

5. The preparation apparatus according to claim 4, characterized in that: The turbulence vane assembly includes: a sleeve (32), a movable rod (33), and pulverizing teeth (34); The sleeve (32) is connected to the outer wall of the outer cylinder (5), the movable rod (33) is movably inserted into the outer end of the sleeve (32) and connected to the inner wall of the sleeve (32) through a connecting spring, and the crushing teeth (34) are evenly distributed on the outer walls of the sleeve (32) and the movable rod (33).

6. The preparation apparatus according to claim 5, characterized in that: The outer circumferential wall of the housing (1) is provided with multiple sets of driven rings (36) that cooperate with the spoiler assembly from top to bottom. The inner wall of the driven ring (36) is provided with multiple sets of arc-shaped protrusions (361) in an integrated ring array. The end of the movable rod (33) away from the sleeve (32) is fitted with a ball bearing that cooperates with the inner wall of the driven ring (36) and the outer wall of the arc-shaped protrusions (361).

7. The preparation apparatus according to claim 6, characterized in that: The outer wall of the outer cylinder (5) is provided with a liquid guide cap (20) corresponding to the position of the drain port (7) and communicating with the drain port (7). The liquid guide cap (20) is used to guide the raw material discharged from the drain port (7) to the outer wall of the turbulence blade assembly below the drain port (7).

8. A method for preparing a low-irritation suspension injection, using the preparation apparatus as described in claim 7, characterized in that: Specifically, the following steps are included: S1: The raw materials for preparing low-irritation suspension injection are added into the shell (1) through the feed pipe (2). The electric device is turned on and works. The gear set (16) drives the hollow sleeve (4), the hollow sleeve (4) drives the outer cylinder (5), and the outer cylinder (5) drives the inner cylinder (6) to rotate through the L-shaped movable block (23). When rotating, the outer cylinder (5) stirs the raw materials through the baffle assembly, and the movable rod (33) in the baffle assembly moves intermittently relative to the sleeve (32) in cooperation with the arc-shaped protrusion (361) when rotating, shearing the powder in the raw materials. S2: While the electric equipment is working, it drives the toothed gear (17) through the sprocket transmission group. The toothed gear (17) drives the rack (10) to drive the piston (11) upward, so that the raw material in the shell (1) is sucked into the inner cavity of the inner cylinder (6) from the liquid inlet (21). The piston (11) drives the L-shaped movable block (23) to move inward through the active ring (12) to release the fixation between the inner cylinder (6) and the outer cylinder (5). At the same time, the active ring (12) contacts the pressure sensor (24). Pressure sensor 1 (24) sends a signal to controller (8), controller (8) controls the electric equipment to stop working and the rotary drive device (18) to work. The rotary drive device (18) drives the hollow sleeve 2 (9) to rotate the inner cylinder (6) relative to the outer cylinder (5) through gear set 2 (19) until infrared receiver 1 receives the signal from infrared transmitter (31). At this time, the drain ports (7) of the outer cylinder (5) and the inner cylinder (6) are in the corresponding state, and controller (8) When the control electric device is turned on, the rotary drive device (18) is turned off, and when the toothless section of the toothless gear (17) continues to rotate, it corresponds to the rack (10). Under the action of the spring (13), the rack (10) drives the piston (11) to reset downward. At this time, the L-shaped movable block (23) resets to fix the inner cylinder (6) and the outer cylinder (5). The liquid in the inner cylinder (6) is discharged under the action of the piston (11) and the centrifugal force of the rotation of the outer cylinder (5) and the inner cylinder (6). The discharged liquid is contacted with the turbulence vane assembly for shearing again under the action of the liquid guide cap (20). When the piston (11) resets downward so that the contact column contacts the pressure sensor (35), the controller (8) controls the rotary drive device (18) to open until the infrared receiver (2) receives the signal from the infrared transmitter (31). At this time, the liquid inlet (21) of the outer cylinder (5) and the inner cylinder (6) are in the corresponding state, and the controller (8) controls the rotary drive device (18) to close. S3: After the raw material is processed in the shell (1) for 1-3 hours, it is discharged through the discharge pipe (3) for use.

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