A liquid adding and diluting device for medical examination

Abstract

The present invention discloses a liquid adding and diluting device for medical examination, comprising a dragging and moving device, a negative pressure dilution chamber component, an external wrapping connecting piece, a diluent adding device and a placement wrapping piece. The present invention belongs to the field of medical examination, and specifically refers to a liquid adding and diluting device for medical examination; the present invention uses the proposed dragging and moving device to suck the base liquid, and the diluent adding device to suck the diluent, and simultaneously puts the base liquid into the negative pressure dilution chamber component, and while the mixed liquid is stirred by the rotating component, a micro-negative pressure state is formed in the negative pressure dilution chamber component through the mutual cooperation of the negative pressure forming component and the sealing forming component, thereby increasing the contact area between the liquids, promoting the mixing efficiency of the liquids, and realizing efficient liquid adding and dilution mixing.

Description

Technical Field

[0001] The invention belongs to the technical field of medical examination, and in particular relates to a liquid adding and diluting device for medical examination. Background Art

[0002] The methods of testing liquid dilution mainly include the following: Direct dilution method: take a certain volume of the sample to be tested into a clean and dry container, then add the diluent, and mix to obtain the diluted sample; Step dilution method: first dilute a certain multiple according to the direct dilution method, then take the diluted sample for secondary dilution, and mix to obtain the diluted sample; Multi-step dilution method: achieve the required concentration through multiple dilutions. Regardless of the dilution method, in order to achieve accurate test results in the later stage, the diluent needs to be effectively mixed. In order to achieve effective mixing, stirring or shaking is generally used, but it is time-consuming and labor-intensive, and the efficiency is low. At the same time, the mixing effect cannot be guaranteed. Summary of the invention

[0003] In view of the above situation, the present invention provides a liquid adding and diluting device for medical examination, which sucks the base liquid through the proposed dragging and moving device, and sucks the diluent through the diluent adding device, and simultaneously puts the base liquid into the negative pressure dilution chamber component. While the mixed liquid is stirred by the rotating component, the negative pressure forming component and the sealing forming component cooperate with each other to form a micro-negative pressure state in the negative pressure dilution chamber component, thereby increasing the contact area between the liquids, promoting the mixing efficiency of the liquids, and realizing efficient liquid adding and dilution mixing.

[0004] The technical solution adopted by the present invention is as follows: The present invention proposes a liquid adding and diluting device for medical examination, comprising a dragging and moving device, a negative pressure dilution chamber component, an external wrapping connection piece, a diluent adding device and a placement wrapping piece, wherein the dragging and moving device and the negative pressure dilution chamber component are arranged interlaced, the dragging and moving device and the negative pressure dilution chamber component are fixedly arranged in the external wrapping connection piece, the external wrapping connection piece and the diluent adding device are fixedly arranged in the placement wrapping piece, the dragging and moving device comprises a dragging driving component, a negative pressure forming component and a sealing forming component, the dragging and driving component is fixedly arranged at the top of the negative pressure forming component, the sealing forming component is fixedly arranged at the bottom of the negative pressure forming component, the negative pressure dilution chamber component comprises a negative pressure cabin component and a rotating component, the rotating component is engaged and rotatably connected with the negative pressure cabin component, the negative pressure cabin component comprises a negative pressure cabin pipe, a fixed cross bar and a limiting disc, and the rotating component comprises a connecting circular tube, an extended circular tube, a supporting top plate, a rotating fan blade and a connecting bottom ring.

[0005] The dragging driving component includes a driving motor, a rotating central shaft, a dragging tube and a rubber plug. The rotating central shaft is rotationally connected to the driving motor. Spiral protrusions are vertically distributed in a linear array on the outer wall of the rotating central shaft. The rotating central shaft is inserted in the dragging tube. Spiral grooves are vertically distributed in a linear array on the inner wall of the dragging tube. The spiral protrusions are engaged with the spiral grooves. A rubber plug is fixedly provided at the bottom of the dragging tube. Limiting notches are provided on both sides of the rubber plug. The rubber plug proposed in the device of the present invention changes the pressure of the space below the rubber plug by moving, so as to achieve the purpose of sucking liquid and achieving negative pressure in the negative pressure dilution chamber component in the subsequent process. The rubber plug does not contact the mixed liquid during the movement, and in the later downward pressure process, the mixed liquid is effectively and completely discharged to prevent residue and affect data statistics.

[0006] Preferably, the negative pressure forming component includes a screw rod, a drag rod and a support spring, the support spring is wrapped around the outside of the drag rod, the drag rod is inserted into the upper end of the screw rod, the upper end of the screw rod is provided with a sliding groove, and side limit grooves are provided on both sides of the inner wall of the sliding groove, the upper end of the screw rod is fixedly connected with an end limit plate, the center position of the end limit plate is provided with a sliding hole, the drag rod is inserted and slid in the sliding hole, the drag rod is inserted and slid in the sliding groove, the bottom of the drag rod is fixedly provided with a butt plate, the two ends of the butt plate are fixedly provided with side sliding blocks, the side sliding blocks are engaged in the side limit grooves and slide, and the support spring is fixedly provided between the bottom surface of the end limit plate and the top surface of the butt plate. The support spring proposed in the invention device is a high-hardness spring. When the dragging rod is dragged, the support spring plays a supporting role. Since the support spring is arranged between the abutment plate and the end limit plate, it drives the screw rod to move upward with the dragging rod until the top surface of the bottom plate is completely connected to the bottom surface of the negative pressure chamber pipe, blocking the base liquid inlet and the interlaced holes, so that a relatively sealed environment is formed in the negative pressure chamber component. At the same time, the contact electrode B moves up to the contact electrode A at the bottom of the contact support top plate, and the driving motor continues to run for a certain period of time, and the dragging tube is driven to move continuously upward by the rotation of the rotating central axis. In this process, the screw rod is sealed to form a component dragging, and no displacement occurs. The dragging rod moves upward with the dragging driving component, and a negative pressure state is formed in the space below the rubber plug in the externally wrapped connecting component, which assists the fusion of the base liquid and the diluent.

[0007] The sealing forming component includes a connecting top plate, a connecting support rod and a connecting bottom plate. There are multiple connecting support rods, and the multiple connecting support rods are fixedly connected between the connecting top plate and the connecting bottom plate in a circular array. The top surface of the connecting top plate is fixedly provided with a contact electrode B, and the top surface of the connecting top plate is fixedly connected to the lower end of the screw rod. The sealing forming component proposed in the device of the present invention is inserted at the bottom of the negative pressure tank pipe. When the connecting top plate leaves the bottom of the negative pressure tank pipe, the basic liquid inlet is opened, and the basic liquid is sucked into the negative pressure tank pipe through the connecting hose. When the connecting support rod slides in the insertion hole to the connecting bottom ring to cover the bottom of the negative pressure tank pipe, a temporary sealed space is formed in the negative pressure tank pipe, thereby improving the mixing efficiency of the basic liquid and the diluent.

[0008] The fixed cross bar is fixedly arranged on the top of the negative pressure tank pipe fitting, the limiting disc is fixedly arranged in the middle position of the fixed cross bar, the limiting disc and the negative pressure tank pipe fitting are arranged concentrically, a basic liquid inlet is provided at the bottom of the negative pressure tank pipe fitting, and through holes are distributed in a circular array around the basic liquid inlet, the through holes and the connecting support rod are symmetrically arranged in number, the connecting support rod slides in the through holes, a rotating locking groove is provided at the bottom of the fixed cross bar, a locking ring groove is provided in the limiting disc, and the inner wall of the locking ring groove is fixedly connected to the outer wall of the outer ring of the fixed bearing.

[0009] The outer wall of the connecting circular tube is fixedly connected to the inner wall of the inner ring of the fixed bearing, the inner wall of the connecting circular tube is distributed with spiral patterns in a linear array, the spiral patterns are engaged with the patterns on the outer wall of the screw rod, the extended circular tube is fixedly arranged at the bottom of the connecting circular tube, the supporting top plate is fixedly arranged at the bottom of the extended circular tube, the top surface of the supporting top plate is fixedly provided with a rotating engaging block, the rotating engaging block is engaged in the rotating engaging groove, the bottom surface of the supporting top plate is fixedly provided with a contact electrode A, the rotating fan blade is fixedly arranged at the supporting top plate When the screw rod is dragged, the outer wall thread of the screw rod engages with the spiral texture on the inner wall of the connecting circular tube of the rotating component. When the screw rod moves up and down, the connecting circular tube drives the rotating component to rotate, so that the rotating fan blades stir the base liquid and the diluent to assist in dilution and mixing, and the rotating engaging block engages in the engaging groove of the fixed cross bar, which ensures that the rotating component will not deviate from the angle during rotation, making the rotation process smoother.

[0010] The external wrapping connector includes a wrapping vertical tube, a bottom component placement tube, a connecting tube and a connecting hose. The bottom of the wrapping vertical tube is fixedly provided with a bottom component placement tube, and vertical limit blocks are fixedly provided on both sides of the inner wall of the wrapping vertical tube. The limit grooves are engaged with the vertical limit blocks. The connecting tube is fixedly provided at the bottom of the bottom component placement tube, and the connecting hose is fixedly inserted in the connecting tube.

[0011] Furthermore, the sealing forming component is inserted and slid in the bottom component placement tube.

[0012] Preferably, the diluent adding device comprises a diluent replacement tube, a replacement tube placement slot and a pumping device, a tube connection outlet is provided at the bottom of the diluent replacement tube, a sliding column is fixedly provided in the diluent replacement tube, the sliding board slides through the sliding column, the pumping device comprises a control panel, a control motor and a pumping port, the control panel is connected to the control motor signal, the control motor is connected to the pumping port signal, the tube connection outlet and the pumping port are connected through a suction hose, the pumping port pumps the diluent into the negative pressure tank pipe fitting, the control panel proposed in the device of the present invention adjusts the single pumping amount of the diluent, after the diluent pumped by the pumping port is sucked into the negative pressure tank pipe fitting, the pumping port is closed to assist in forming negative pressure in the negative pressure tank pipe fitting.

[0013] As a further preferred embodiment of the present invention, a wrapping slot is opened in the placement wrapping piece, the replacement tube placement slot is fixedly connected in the wrapping slot, the drive motor is fixedly connected in the wrapping slot, and the wrapping vertical pipe is fixedly connected in the wrapping slot.

[0014] The beneficial effects achieved by the present invention using the above structure are as follows: (1) The rubber plug proposed in the device of the present invention changes the pressure of the space below the rubber plug by moving, so as to achieve the purpose of sucking liquid and achieving negative pressure in the negative pressure dilution chamber component in the subsequent process. The rubber plug does not contact the mixed liquid during the movement, and in the subsequent downward pressure process, the mixed liquid is effectively and completely discharged to prevent residue from affecting data statistics.

[0015] (2) The support spring proposed in the device of the present invention is a high-hardness spring. When the dragging rod is dragged, the support spring plays a supporting role. Since the support spring is arranged between the abutment plate and the end limit plate, it drives the screw rod to move upward with the dragging rod until the top surface of the connecting bottom plate completely covers the bottom surface of the negative pressure chamber pipe, shielding the base liquid inlet and the insertion holes, so that a relatively sealed environment is formed in the negative pressure chamber component. At the same time, the contact electrode B moves upward to the contact electrode A at the bottom of the contact support top plate. The driving motor continues to run for a certain period of time, and the dragging tube is driven to move upward continuously through the rotation of the rotating central axis. In this process, the screw rod is sealed to form a component dragging, and no displacement occurs. The dragging rod moves upward with the dragging driving component, and a negative pressure state is formed in the space below the rubber plug in the externally wrapped connecting component, which assists the fusion of the base liquid and the diluent.

[0016] (3) The sealing forming component proposed in the device of the present invention is inserted into the bottom of the negative pressure tank pipe. When the connecting top plate leaves the bottom of the negative pressure tank pipe, the base liquid inlet is opened, and the base liquid is sucked into the negative pressure tank pipe through the connecting hose. When the connecting support rod slides in the inserted hole to the bottom of the negative pressure tank pipe where the connecting bottom ring covers the bottom of the negative pressure tank pipe, a temporary sealing space is formed in the negative pressure tank pipe, thereby improving the mixing efficiency of the base liquid and the diluent.

[0017] (4) When the screw rod in the device of the present invention is dragged, the outer wall thread of the screw rod engages with the spiral pattern on the inner wall of the connecting tube of the rotating member. When the screw rod moves up and down, the connecting tube drives the rotating member to rotate, so that the rotating blades stir the base liquid and the diluent to assist in dilution and mixing. The rotating engaging block engages in the engaging groove of the fixed cross bar, ensuring that the rotating member will not deviate in angle during rotation, making the rotation process smoother.

[0018] (5) The control panel proposed in the device of the present invention adjusts the single pumping amount of the diluent. After the diluent pumped by the pump suction port is sucked into the negative pressure tank pipe fitting, the pump suction port is closed to assist in forming negative pressure in the negative pressure tank pipe fitting.

[0019] (6) Compared with the traditional direct mixing and dilution method, the device of the present invention uses a diluent and a part of the base liquid to mix, and then puts the preliminary mixed liquid into the base liquid for dilution and mixing, which can avoid the problem of insufficient mixing of trace liquid in a larger amount of liquid, and greatly improve the dilution and mixing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front view of a liquid adding and diluting device for medical examination proposed by the present invention; Figure 2 This is an elevation view of a liquid adding and diluting device for medical examination proposed by the present invention; Figure 3 A top view of a liquid adding and diluting device for medical examination proposed by the present invention; Figure 4 for Figure 1 A cross-sectional view along the cutting line AA; Figure 5 for Figure 1 A cross-sectional view along the cutting line BB; Figure 6 for Figure 3 A cross-sectional view along the cutting line CC; Figure 7 for Figure 6 A partial enlarged view of point Ⅰ in the middle; Figure 8 for Figure 6 A partial enlarged view of the middle II; Fig. 9 This is a schematic exploded view of the structure of the device for placing the package and the diluent adding device proposed by the present invention; Fig.10 This is a schematic diagram of the structure of the external wrapping connector proposed by the present invention; Fig.11 This is a schematic diagram of the explosion structure of the negative pressure dilution chamber component proposed by the present invention; Fig.12 This is a schematic diagram of the structure of the drag-and-move device proposed by the present invention; Fig.13 This is a schematic diagram of the structural explosion of the dragging moving device proposed in the present invention.

[0021] Among them, 1. dragging and moving device, 2. negative pressure dilution chamber component, 3. external wrapping connector, 4. diluent adding device, 5. placement wrapping component, 6. dragging and driving component, 7. negative pressure forming component, 8. sealing forming component, 9. negative pressure chamber component, 10. rotating component, 11. wrapping vertical pipe, 12. bottom component placement pipe, 13. connecting pipe, 14. connecting hose, 15. diluent replacement pipe, 16. replacement pipe placement slot, 17. pumping device, 18. wrapping slot, 19. driving motor, 20. rotating central axis, 21. dragging pipe, 22. rubber plug, 23. spiral protrusion, 24. spiral groove, 25. limit slot, 26. screw rod, 27. dragging rod, 28. support spring, 29. sliding slot, 30. side limit slot, 31 , end limit plate, 32, sliding hole, 33, stop plate, 34, side sliding block, 35, connecting top plate, 36, connecting support rod, 37, connecting bottom plate, 38, contact electrode B, 39, negative pressure cabin pipe fittings, 40, fixed cross bar, 41, limit disc, 42, base liquid inlet, 43, interlaced holes, 44, rotating snap-fit ​​groove, 45, snap-fit ​​ring groove, 46, fixed bearing, 47, connecting round tube, 48, extended round tube, 49, supporting top plate, 50, rotating fan blades, 51, connecting bottom ring, 52, spiral texture, 53, rotating snap-fit ​​block, 54, contact electrode A, 55, vertical limit block, 56, pipe connection outlet, 57, sliding column, 58, sliding plate, 59, suction hose, 60, control panel, 61, control motor, 62, pump suction port.

[0022] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0025] like Figure 1-Figure 13 As shown, the present invention proposes a liquid adding and diluting device for medical examination, comprising a dragging and moving device 1, a negative pressure dilution chamber component 2, an external wrapping connection member 3, a diluent adding device 4 and a placement wrapping member 5, wherein the dragging and moving device 1 and the negative pressure dilution chamber component 2 are arranged interlaced, the dragging and moving device 1 and the negative pressure dilution chamber component 2 are fixedly arranged in the external wrapping connection member 3, the external wrapping connection member 3 and the diluent adding device 4 are fixedly arranged in the placement wrapping member 5, the dragging and moving device 1 comprises a dragging driving member 6, a negative pressure forming member 7 and a sealing forming component 8, the dragging driving component 6 is fixedly arranged on the top of the negative pressure forming component 7, the sealing forming component 8 is fixedly arranged on the bottom of the negative pressure forming component 7, the negative pressure dilution chamber component 2 includes a negative pressure chamber component 9 and a rotating component 10, the rotating component 10 is engaged and rotatably connected with the negative pressure chamber component 9, the negative pressure chamber component 9 includes a negative pressure chamber pipe 39, a fixed cross bar 40 and a limiting disc 41, and the rotating component 10 includes a connecting circular tube 47, an extended circular tube 48, a supporting top plate 49, a rotating fan blade 50 and a connecting bottom ring 51.

[0026] Among them, the dragging drive component 6 includes a driving motor 19, a rotating central axis 20, a dragging tube 21 and a rubber plug 22. The rotating central axis 20 is rotationally connected to the driving motor 19. The outer wall of the rotating central axis 20 is vertically distributed with spiral protrusions 23 in a linear array. The rotating central axis 20 is inserted into the dragging tube 21. The inner wall of the dragging tube 21 is vertically distributed with spiral grooves 24 in a linear array. The spiral protrusions 23 are engaged with the spiral grooves 24. The bottom of the dragging tube 21 is fixedly provided with a rubber plug 22, and limiting grooves 25 are opened on both sides of the rubber plug 22.

[0027] The negative pressure forming member 7 includes a screw rod 26, a drag rod 27 and a support spring 28. The support spring 28 is wrapped around the outside of the drag rod 27. The drag rod 27 is inserted into the upper end of the screw rod 26. The upper end of the screw rod 26 is provided with a sliding groove 29. The inner walls of the sliding groove 29 are provided with side limit grooves 30. The upper end of the screw rod 26 is fixedly provided with an end limit plate 31. The center position of the end limit plate 31 is A sliding hole 32 is opened, and the dragging rod 27 slides in the sliding hole 32, and the dragging rod 27 slides in the sliding groove 29. A retaining piece 33 is fixedly connected to the bottom of the dragging rod 27, and side sliding blocks 34 are fixedly connected to the two ends of the retaining piece 33. The side sliding blocks 34 are engaged in the side limiting groove 30 to slide, and the support spring 28 is fixedly set between the bottom surface of the end limiting piece 31 and the top surface of the retaining piece 33.

[0028] The sealing forming component 8 includes a connecting top plate 35, a connecting support rod 36 and a connecting bottom plate 37. A plurality of connecting support rods 36 are provided, and the plurality of connecting support rods 36 are fixedly connected in a circular array between the connecting top plate 35 and the connecting bottom plate 37. A contact electrode B38 is fixedly connected to the top surface of the connecting top plate 35, and the top surface of the connecting top plate 35 is fixedly connected to the lower end portion of the screw rod 26.

[0029] The fixed cross bar 40 is fixedly arranged on the top of the negative pressure tank pipe 39, and the limiting disc 41 is fixedly arranged in the middle position of the fixed cross bar 40. The limiting disc 41 and the negative pressure tank pipe 39 are arranged concentrically. A basic liquid inlet 42 is provided at the bottom of the negative pressure tank pipe 39, and through holes 43 are distributed in a circular array around the basic liquid inlet 42. The through holes 43 and the connecting support rod 36 are symmetrically arranged in number. The connecting support rod 36 slides in the through holes 43. A rotating locking groove 44 is provided at the bottom of the fixed cross bar 40, and a locking ring groove 45 is provided in the limiting disc 41. The inner wall of the locking ring groove 45 is fixedly connected to the outer wall of the outer ring of the fixed bearing 46.

[0030] The outer wall of the connecting circular tube 47 is fixedly connected to the inner wall of the inner ring of the fixed bearing 46, and the inner wall of the connecting circular tube 47 is distributed with spiral patterns 52 in a linear array, and the spiral patterns 52 are engaged with the patterns on the outer wall of the screw rod 26. The extended circular tube 48 is fixedly arranged at the bottom of the connecting circular tube 47, and the supporting top plate 49 is fixedly arranged at the bottom of the extended circular tube 48. The top surface of the supporting top plate 49 is fixedly provided with a rotating engaging block 53, and the rotating engaging block 53 is engaged in the rotating engaging groove 44. The bottom surface of the supporting top plate 49 is fixedly provided with a contact electrode A54, and the rotating fan blades 50 are fixedly arranged between the supporting top plate 49 and the connecting bottom ring 51.

[0031] The external wrapping connector 3 includes a wrapping vertical tube 11, a bottom component placement tube 12, a connecting tube 13 and a connecting hose 14. The bottom of the wrapping vertical tube 11 is fixedly provided with a bottom component placement tube 12, and vertical limit blocks 55 are fixedly provided on both sides of the inner wall of the wrapping vertical tube 11. The limit grooves 25 are engaged with the vertical limit blocks 55. The connecting tube 13 is fixedly provided at the bottom of the bottom component placement tube 12, and the connecting hose 14 is fixedly inserted in the connecting tube 13.

[0032] The seal forming member 8 is inserted and slid in the bottom member placement tube 12 .

[0033] The diluent adding device 4 includes a diluent replacement tube 15, a replacement tube placement slot 16 and a pumping device 17. A tube connection outlet 56 is provided at the bottom of the diluent replacement tube 15. A sliding column 57 is fixedly provided in the diluent replacement tube 15. A sliding plate 58 is inserted on the sliding column 57. The pumping device 17 includes a control panel 60, a control motor 61 and a pumping port 62. The control panel 60 is signal-connected to the control motor 61, and the control motor 61 is signal-connected to the pumping port 62. The tube connection outlet 56 and the pumping port 62 are connected by a suction hose 59, and the pumping port 62 pumps the diluent into the negative pressure cabin pipe 39.

[0034] A wrapping slot 18 is opened in the placement wrapping piece 5 , the replacement tube placement slot 16 is fixedly arranged in the wrapping slot 18 , the drive motor 19 is fixedly arranged in the wrapping slot 18 , and the wrapping vertical pipe 11 is fixedly arranged in the wrapping slot 18 .

[0035] When in use, the device of the present invention is connected to a power source, the drive motor 19, the control panel 60, and the control motor 61 are electrically connected to the power source, the contact electrode A54 and the contact electrode B38 are electrically connected to the power source, the contact electrode A54 and the contact electrode B38 are signal-connected to the drive motor 19, and the control panel 60 is signal-connected to the control motor 61. The diluent is filled into the diluent replacement tube 15 via the tube connection outlet 56. During the filling process, the slide plate 58 slides to the upper end of the slide column 57 under pressure, the diluent replacement tube 15 is placed in the replacement tube placement slot 16, and the suction hose 59 is installed to connect the tube connection outlet 56 and the pumping port 62 of the pumping device 17. Before operation, ensure that the suction hose 59 is filled with diluent, adjust the control panel 60, and adjust the amount of diluent pumped in a single time. Before use, the base liquid receiving tube is placed at the lower part of the external wrapping connector 3, and the connecting hose 14 is inserted into the base liquid receiving tube.

[0036] The overall dilution and mixing process is divided into two stages. In the first stage, the device of the present invention is operated, and the drive motor 19 and the control motor 61 start to operate. The drive motor 19 operates, driving the rotating shaft 20 to rotate clockwise, and the spiral protrusion 23 engages with the spiral groove 24. During the rotation of the rotating shaft 20, the dragging tube 21 is driven to move upward, and the rubber plug 22 is driven to move upward along the vertical limit block 55 wrapped around the vertical tube 11. The dragging rod 27 moves upward with the rubber plug 22, and under the support of the support spring 28, the screw rod 26 is driven to move upward, and the connecting top plate 35 fixed to the lower end of the screw rod 26 moves upward, and the connecting support rod 36 slides in the insertion hole 43 of the negative pressure cabin pipe 39. When the connecting top plate 35 stops blocking the base liquid inlet 42, the base liquid entry channel is opened, and the base liquid is sucked through the connecting hose 14. The liquid enters the negative pressure dilution chamber component 2; the control motor 61 runs to control the pump suction port 62 to suck the quantitative dilution liquid into the negative pressure chamber pipe 39. As the dilution liquid decreases, the sliding plate 58 moves down along the sliding column 57, and then the pump suction port 62 is locked; in the process of the screw rod 26 moving up, the texture on the outer wall of the screw rod 26 engages with the spiral texture 52 in the connecting round tube 47, so that the connecting round tube 47 rotates, driving the extension round tube 48 and the supporting top plate 49 to rotate, and the rotating engaging block 53 slides in the rotating engaging groove 44 of the fixed cross bar 40. The rotating fan blade 50 stirs the base liquid and the dilution liquid during the rotation process until the connecting bottom plate 37 is dragged to block the base liquid inlet 42. At this time, the contact electrode A54 on the supporting top plate 49 contacts the contact electrode B38 at the bottom of the connecting top plate 35, and enters the next stage; In the second stage, the contact electrode A54 touches the contact electrode B38, and the drive motor 19 connected to the contact electrode A54 and the contact electrode B38 signal runs for a fixed time T, controlling the rotating central axis 20 to rotate continuously clockwise, driving the drag tube 21 to move up, and the rubber plug 22 to move up continuously. At this time, the drag rod 27 moves up with the rubber plug 22, and the sealing forming component 8 is restricted by the negative pressure cabin pipe 39 and cannot move up. The screw rod 26 maintains an unchanged height, and the drag rod 27 drags the abutment 33 to slide in the sliding groove 29, squeezing the support spring 28. At this time, the space below the rubber plug 22 is in a sealed state. As the rubber plug 22 moves up, the space below the rubber plug 22 is in a negative pressure state, increasing the contact area between the base liquid and the diluent, promoting the mixing of the liquids, and improving the mixing efficiency. After T time, the drive motor 19 controls the rotating central axis 20 to rotate counterclockwise, lowering the drag tube 21 and the rubber plug 2 2. Under the reset action of the support spring 28, the drag rod 27 first moves downward in the sliding slot 29 of the screw rod 26 until it is completely reset, the support spring 28 is completely restored to its original state, and the air pressure in the negative pressure chamber pipe 39 is restored. At this time, the driving motor 19 controls the rotating central shaft 20 to continue to rotate counterclockwise, and the abutment piece 33 of the drag rod 27 pushes the screw rod 26 to move downward. During the downward movement of the screw rod 26, the texture of the outer wall of the screw rod 26 engages with the spiral texture 52 of the inner wall of the connecting tube 47, and the rotating member 10 rotates in the opposite direction. The connecting bottom plate 37 stops blocking the base liquid inlet 42 and opens the outflow passage of the mixed liquid. As the rubber plug 22 moves downward, the mixed liquid flows out into the base liquid receiving test tube through the connecting pipe 13 and the connecting hose 14. Before the connecting top plate 35 contacts and blocks the base liquid inlet, the mixed liquid is completely discharged from the negative pressure chamber pipe 39, which is convenient for subsequent fusion. The above is a specific process of single mixing, which is applicable to various dilution methods.

[0037] The above is the overall workflow of the present invention, and you can repeat this step next time you use it.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A liquid adding and diluting device for medical examination, characterized in that: The invention comprises a dragging and moving device (1), a negative pressure dilution chamber component (2), an external wrapping connection member (3), a diluent adding device (4) and a placement wrapping member (5), wherein the dragging and moving device (1) and the negative pressure dilution chamber component (2) are arranged in an interlaced manner, the dragging and moving device (1) and the negative pressure dilution chamber component (2) are fixedly arranged in the external wrapping connection member (3), the external wrapping connection member (3) and the diluent adding device (4) are fixedly arranged in the placement wrapping member (5), the dragging and moving device (1) comprises a dragging and driving member (6), a negative pressure forming member (7) and a sealing forming member (8), the dragging and driving member (1) and the negative pressure forming member (2) are fixedly arranged in the placement wrapping member (5), The component (6) is fixedly arranged on the top of the negative pressure forming component (7), the sealing forming component (8) is fixedly arranged on the bottom of the negative pressure forming component (7), the negative pressure dilution chamber component (2) comprises a negative pressure chamber component (9) and a rotating component (10), the rotating component (10) is engaged and rotatably connected with the negative pressure chamber component (9), the negative pressure chamber component (9) comprises a negative pressure chamber pipe (39), a fixed cross bar (40) and a limiting disc (41), and the rotating component (10) comprises a connecting circular tube (47), an extended circular tube (48), a supporting top plate (49), a rotating fan blade (50) and a connecting bottom ring (51).

2. A liquid adding and diluting device for medical examination according to claim 1, characterized in that: The dragging driving component (6) comprises a driving motor (19), a rotating central shaft (20), a dragging tube (21) and a rubber plug (22); the rotating central shaft (20) is interlaced and rotatably connected with the driving motor (19); spiral protrusions (23) are vertically distributed in a linear array along the outer wall of the rotating central shaft (20); the rotating central shaft (20) is inserted into the dragging tube (21); spiral grooves (24) are vertically distributed in a linear array along the inner wall of the dragging tube (21); the spiral protrusions (23) are engaged with the spiral grooves (24); the bottom of the dragging tube (21) is fixedly provided with a rubber plug (22); and limiting notches (25) are provided on both sides of the rubber plug (22).

3. A liquid adding and diluting device for medical examination according to claim 2, characterized in that: The negative pressure forming member (7) comprises a screw rod (26), a drag rod (27) and a support spring (28), wherein the support spring (28) is wrapped around the outside of the drag rod (27), and the drag rod (27) is inserted into the upper end of the screw rod (26). The upper end of the screw rod (26) is provided with a sliding groove (29), and the inner walls of the sliding groove (29) are provided with side limit grooves (30). The upper end of the screw rod (26) is fixedly connected with an end limit plate (31), and the center of the end limit plate (31) is A sliding hole (32) is opened at the position, the dragging rod (27) slides through the sliding hole (32), the dragging rod (27) slides through the sliding slot (29), the bottom of the dragging rod (27) is fixedly provided with a retaining plate (33), the two ends of the retaining plate (33) are fixedly provided with side sliding blocks (34), the side sliding blocks (34) are engaged in the side limiting slot (30) and slide, and the support spring (28) is fixedly provided between the bottom surface of the end limiting plate (31) and the top surface of the retaining plate (33).

4. A liquid adding and diluting device for medical examination according to claim 3, characterized in that: The sealing forming component (8) comprises a connecting top plate (35), a connecting support rod (36) and a connecting bottom plate (37), wherein a plurality of the connecting support rods (36) are provided, and the plurality of connecting support rods (36) are fixedly arranged between the connecting top plate (35) and the connecting bottom plate (37) in a circular array, and a contact electrode B (38) is fixedly arranged on the top surface of the connecting top plate (35), and the top surface of the connecting top plate (35) is fixedly arranged on the lower end portion of the screw rod (26).

5. A liquid adding and diluting device for medical examination according to claim 4, characterized in that: The fixed cross bar (40) is fixedly arranged on the top of the negative pressure tank pipe (39), the limiting disc (41) is fixedly arranged in the middle of the fixed cross bar (40), the limiting disc (41) and the negative pressure tank pipe (39) are arranged concentrically, a base liquid inlet (42) is provided at the bottom of the negative pressure tank pipe (39), and through holes (43) are distributed in a circular array around the base liquid inlet (42). The connecting support rod (43) is arranged symmetrically with the connecting support rod (36), the connecting support rod (36) slides in the insertion hole (43), a rotational engaging groove (44) is provided at the bottom of the fixed cross bar (40), a locking ring groove (45) is provided in the limiting disc (41), a fixed bearing (46) is fixedly connected to the inner wall of the locking ring groove (45), and the inner wall of the locking ring groove (45) is fixedly connected to the outer wall of the outer ring of the fixed bearing (46).

6. A liquid adding and diluting device for medical examination according to claim 5, characterized in that: The outer wall of the connecting circular tube (47) is fixedly connected to the inner wall of the inner ring of the fixed bearing (46); the inner wall of the connecting circular tube (47) is provided with spiral patterns (52) in a linear array; the spiral patterns (52) are engaged with the patterns on the outer wall of the screw rod (26); the extended circular tube (48) is fixedly arranged at the bottom of the connecting circular tube (47); the supporting top plate (49) is fixedly arranged at the bottom of the extended circular tube (48); a rotating engaging block (53) is fixedly arranged on the top surface of the supporting top plate (49); the rotating engaging block (53) is engaged in the rotating engaging groove (44); a contact electrode A (54) is fixedly arranged on the bottom surface of the supporting top plate (49); and the rotating fan blade (50) is fixedly arranged between the supporting top plate (49) and the connecting bottom ring (51).

7. A liquid adding and diluting device for medical examination according to claim 6, characterized in that: The external wrapping connection member (3) comprises a wrapping vertical tube (11), a bottom component placement tube (12), a connecting tube (13) and a connecting hose (14); the bottom of the wrapping vertical tube (11) is fixedly provided with a bottom component placement tube (12); vertical limit blocks (55) are fixedly provided on both sides of the inner wall of the wrapping vertical tube (11); the limit grooves (25) are engaged with the vertical limit blocks (55); the connecting tube (13) is fixedly provided at the bottom of the bottom component placement tube (12); and the connecting hose (14) is fixedly provided and inserted in the connecting tube (13).

8. A liquid adding and diluting device for medical examination according to claim 7, characterized in that: The sealing forming component (8) is inserted and slid in the bottom component placement tube (12).

9. A liquid adding and diluting device for medical examination according to claim 8, characterized in that: The diluent adding device (4) comprises a diluent replacement tube (15), a replacement tube placement slot (16) and a pumping device (17). The bottom of the diluent replacement tube (15) is provided with a tube connection outlet (56). A sliding column (57) is fixedly provided inside the diluent replacement tube (15). A sliding plate (58) is inserted through the sliding column (57). The pumping device (17) comprises a control panel (60), a control motor (61) and a pumping port (62). The control panel (60) is signal-connected to the control motor (61). The control motor (61) is signal-connected to the pumping port (62). The tube connection outlet (56) and the pumping port (62) are connected via a suction hose (59). The pumping port (62) pumps the diluent into the negative pressure cabin pipe (39).

10. A liquid adding and diluting device for medical examination according to claim 9, characterized in that: A wrapping slot (18) is provided in the placement wrapping member (5), the replacement tube placement slot (16) is fixedly arranged in the wrapping slot (18), the drive motor (19) is fixedly arranged in the wrapping slot (18), and the wrapping vertical pipe (11) is fixedly arranged in the wrapping slot (18).

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