Pneumatic launching mechanism and pneumatic transfer device for detection tubes

Abstract

The application discloses a kind of detection tube pneumatic launching mechanism and pneumatic transmission device, including fixed sleeve and rotating cylinder, rotating cylinder is equipped with through cavity, fixed sleeve is equipped with discharging port, rotating cylinder is set along fixed sleeve axial movement by displacement component, fixed sleeve is equipped with multiple gas feeding assemblies along rotating cylinder moving direction, each gas feeding assembly includes intake pipe and outlet pipe, which are communicated with fixed sleeve and oppositely arranged, rotating cylinder moves and cooperates with the intake pipe and outlet pipe of any one gas feeding assembly.The rotating cylinder is set along the fixed sleeve axial movement, multiple gas feeding assemblies are set to cooperate with the rotating cylinder, so that multiple outlet pipes can realize feeding to different detection areas, and during use, only the through cavity loaded with test tube needs to be moved to the appropriate gas feeding assembly position and then rotated, and the intake pipe and outlet pipe cooperate to communicate simultaneously, so that the test tube can be fed to different detection areas, achieving the purpose of multiple area transmission by one launching mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of test tube pneumatic transmission, in particular to a detection tube pneumatic launching mechanism and a pneumatic transmission device. BACKGROUND

[0002] After the patient collects the sample (such as blood, urine, etc.), the detection tube containing the sample needs to be transported to the detection area for different test items by various instruments. Due to site restrictions, the sample collection area and the test area are often far apart. Manual transportation is time-consuming and laborious, and the traditional transmission belt transportation method has the problems of long transportation time, high pipe jam failure rate, sample hemolysis risk, and inability to transport across floors or buildings.

[0003] Therefore, the prior art uses pneumatic transmission to transport the detection tube over a long distance. For example, the patent with the patent application number CN202220024624.7 and the name of the vacuum blood collection tube pneumatic transportation device launching mechanism, in which the test tube is placed in the cavity of the rotor, the rotor rotates under the action of external force to make the cavity communicate with the first air inlet, the first air inlet guides the test tube into the tee pipe for material guiding, the tee pipe communicates with the detection area, and the test tube in the tee pipe will be transported to the detection area under the action of continuous airflow, completing the long-distance transportation of the test tube.

[0004] In the above-mentioned patent, the rotation of the rotor realizes the communication between the cavity and the outside for feeding or the communication between the cavity and the air inlet and the tee pipe for material guiding, which is beneficial to reduce the transmission time of the test tube. However, since there are various types of detection tubes, according to the different types of test tubes, the test tube will theoretically enter different detection areas, and the launching mechanism described in the above-mentioned patent can only transport the test tube to the communication position, and cannot realize multi-area transmission of the test tube. SUMMARY

[0005] In view of the deficiencies in the prior art, the present application provides a detection tube pneumatic launching mechanism and a pneumatic transmission device, which solves the problem that the launching mechanism in the prior art cannot realize multi-area transmission.

[0006] A detection tube pneumatic launching mechanism and a pneumatic transmission device solve the problem that the launching mechanism in the prior art cannot realize multi-area transmission.

[0007] To achieve the above-mentioned purpose, the present application adopts the following technical solution: a detection tube pneumatic launching mechanism, comprising a fixed sleeve and a rotatable rotating cylinder arranged in the fixed sleeve, a through cavity for placing a detection tube is arranged on the rotating cylinder, a material discharge port communicating with the through cavity is arranged on the fixed sleeve, the rotating cylinder is arranged to move axially along the fixed sleeve through a displacement assembly, and a plurality of gas feeding assemblies are arranged on the fixed sleeve along the moving direction of the rotating cylinder,

[0008] Each air feeding assembly comprises an air inlet pipe and an air outlet pipe which are communicated with the fixed sleeve and oppositely arranged, and the rotating cylinder is used in cooperation with the air inlet pipe and the air outlet pipe of any air feeding assembly.

[0009] Compared with the prior art, the present application has the following beneficial effects: by using the structure of the prior art, the feed inlet is arranged outside the fixed sleeve, and the through cavity is arranged inside the rotating cylinder, so that the rotating cylinder can be used for feeding in cooperation with the feed inlet, the through cavity can be communicated with the air inlet pipe and the air outlet pipe used in cooperation at the same time by rotating the rotating cylinder, and the test tube in the through cavity can be blown out from the air outlet pipe for pneumatic feeding by introducing compressed air from the air inlet pipe.

[0010] On the basis of the prior art, the rotating cylinder is arranged to move axially along the fixed sleeve, and a plurality of air feeding assemblies are arranged in cooperation with the rotating cylinder, so that a plurality of air outlet pipes can realize feeding in different detection areas, and when used, the through cavity loaded with the test tube is only needed to be moved to the position of the appropriate air feeding assembly and then rotated, so that the test tube can be fed to different detection areas by being communicated with the air inlet pipe and the air outlet pipe used in cooperation at the same time, and the purpose of transmitting in multiple areas by one launching mechanism is realized.

[0011] Further, the fixed sleeve is in the form of a through cavity cylinder structure, the outer wall of the rotating cylinder is attached to the inner wall of the fixed sleeve and arranged to move axially along the fixed sleeve, the through cavity is in the form of a cylindrical through cavity structure, and the axis of the through cavity is arranged perpendicularly to the axis of the fixed sleeve.

[0012] Further, the fixed sleeve is internally provided with a plurality of annular grooves arranged in a ring along the inside thereof and spaced apart along the axis thereof, and any adjacent grooves divide the fixed sleeve into mounting spaces, and the air inlet pipe and the air outlet pipe of each air feeding assembly are arranged in any mounting space and oppositely arranged along the radial direction of the fixed sleeve.

[0013] Further, the displacement assembly comprises a moving seat connected with the rotating cylinder, a rotating lead screw threadedly connected with the moving seat, and a first servo motor driving the rotating lead screw to rotate.

[0014] Further, the rotating cylinder is fixedly connected with a second servo motor through a connecting shaft, and the second servo motor is fixedly connected with the moving seat.

[0015] Further, the fixed sleeve is fixed on a mounting seat, and the rotating lead screw and the first servo motor are all rotationally connected with the mounting seat, wherein the output shaft of the first servo motor is provided with a driving synchronous wheel, the rotating lead screw is provided with a driven synchronous wheel arranged coaxially, and the driving synchronous wheel and the driven synchronous wheel are driven by a synchronous belt.

[0016] Further, a sliding channel is formed in the mounting seat, the rotating screw and the fixing sleeve are located on two sides of the sliding channel, the moving seat passes through the sliding channel and is threadedly connected with the rotating screw, and the moving seat is slidingly connected with the sliding rail arranged on one side of the sliding channel.

[0017] Further, the moving seat is provided with a plurality of displacement sensors which are arranged along the length direction of the rotating screw, and the arrangement distance between the plurality of sensors is same as the arrangement distance between the plurality of air feeding assemblies.

[0018] The application further provides a pneumatic conveying device comprising the detection tube pneumatic launching mechanism.

[0019] Compared with the prior art, the pneumatic conveying device has the following beneficial effects: the pneumatic conveying device is provided with the launching mechanism, can realize the purpose of feeding in different detection areas, has a wider application range, and enables a set of pneumatic conveying device to be used in cooperation with a plurality of detection areas (or a plurality of detection chambers), thereby solving the problem that a plurality of existing conveying devices are high in cost and a single existing conveying device cannot realize the purpose of multi-destination conveying.

[0020] Further, each air outlet pipe is provided with a cooperating air supplement assembly, the air supplement assembly comprises an air outlet pipe, a transition pipe and an air supplement pipe which are sequentially connected and arranged in sequence, the air outlet pipe is connected with the air outlet pipe, and the transition pipe is arranged outside the air supplement pipe.

[0021] The transition pipe has a straight pipe structure, one end of the transition pipe is connected with the air outlet pipe, and the other end of the transition pipe is located in the air supplement pipe, and the outer diameter of the transition pipe near the other end is arranged in a necked structure.

[0022] The inner cavity of the air supplement pipe is arranged in a variable diameter manner and sequentially comprises a first straight pipe section, a necked section and a second straight pipe section along the transmission direction of the test tube, wherein the pipe diameter of the first straight pipe section is smaller than the end pipe diameter of the necked section and is equal to the small end diameter of the necked section and the diameter of the second straight pipe section.

[0023] The first straight pipe section is sleeved outside the transition pipe and is arranged in abutment with the transition pipe, the necked structure of the outer diameter of the transition pipe is located in the necked section and the second straight pipe section, the necked section is provided with an air supplement hole, the other end of the transition pipe is located in the middle of the second straight pipe section, and the air outlet end of the second straight pipe section is communicated with a branch pipe.

[0024] Further, the branch pipe outlet end is provided with a branch pipe joint, two conveying pipes are connected with the branch pipe joint, and the branch pipe rotates and is in communication with any conveying pipe under the action of the rotating assembly for feeding.

[0025] Further, the rotating assembly comprises a mounting box sleeved outside the branch pipe, a stepping motor fixed in the mounting box, a rotating gear coaxially arranged with the stepping motor and a gear ring engaged with the rotating gear, the gear ring is fixed with the branch pipe, and the mounting box is fixed with the joint of the circular pipe and the branch pipe.

[0026] Furthermore, each transmission tube is equipped with a pressure sensor that works in conjunction with the rotating assembly.

[0027] Furthermore, it also includes a transmission detection component, which includes a light sensor disposed on the exhaust pipe. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the pneumatic transmission device of the present invention;

[0029] Figure 2 for Figure 1 A structural diagram from another perspective;

[0030] Figure 3 This is a cross-sectional view of the launching mechanism of the present invention along the direction of movement of the rotating cylinder;

[0031] Figure 4 This is a schematic diagram of the fixing sleeve structure of the present invention;

[0032] Figure 5 This is a cross-sectional view of the fixing sleeve of the present invention;

[0033] Figure 6 This is a schematic diagram of the assembly structure of the rotating cylinder, connecting shaft, second servo motor and moving base of the present invention.

[0034] Figure 7 This is a perspective view of the rotating cylinder of the present invention;

[0035] Figure 8 This is a schematic diagram of the assembly structure of the air outlet pipe, air supply component, branch pipe connector, mounting box and transmission pipe of the present invention.

[0036] Figure 9 This is a schematic diagram of the assembly structure of the air outlet pipe, air supply component, branch pipe connector, mounting box and rotating component of the present invention.

[0037] Figure 10 This is a schematic diagram of the installation structure of the air outlet pipe, transition pipe and air supply pipe of the present invention;

[0038] Figure 11 This is a cross-sectional view of the air outlet pipe, transition pipe, annular pipe and air supply pipe of the present invention along the axial direction of the air outlet pipe.

[0039] Figure 12 This is a schematic diagram of the transition tube structure of the present invention;

[0040] Figure 13 This is a cross-sectional view of the transition tube of the present invention along its axial direction;

[0041] Figure 14 This is a schematic diagram of the air supply tube of the present invention;

[0042] Figure 15 The axial sectional view of the air supplement pipe of the present application;

[0043] Figure 16 The schematic diagram of the connecting head, the branch pipe and the branch pipe joint fitting installation structure of the present application;

[0044] Figure 17 The structural schematic diagram of the connecting head of the present application;

[0045] Figure 18 The structural schematic diagram of the branch pipe of the present application;

[0046] Figure 19 The internal structural perspective view of the branch pipe of the present application;

[0047] Figure 20 The structural schematic diagram of the branch pipe joint of the present application.

[0048] In the figure: transmission pipe 1, branch pipe joint 2, installation box 3, connecting head 4, air supplement pipe 5, air supplement port 51, first straight pipe section 52, second straight pipe section 53, necked section 54, air nozzle 6, air outlet pipe 7, air outlet pipe 71, sensor support 8, light sensor 81, discharge port 9, fixed sleeve 10, installation sleeve 11, transition sleeve 12, installation seat 13, moving seat 14, first servo motor 15, driving synchronous wheel 16, synchronous belt 17, driven synchronous wheel 18, installation frame 19, slide rail 20, connecting through hole 201, sliding block 21, second servo motor 22, rotating lead screw 23, air inlet pipe 24, rotating cylinder 25, through cavity 251, recess 26, connecting shaft 27, transition pipe 28, circular ring pipe 29, sensor baffle B 30, branch pipe 31, passage 311, stepped hole 312, rotating gear 32, stepping motor 33, gear ring 34, U-shaped sensor 35, sensor baffle A 36. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application.

[0050] As Figure 1 , 2As shown in the figure, a kind of detection tube pneumatic launching mechanism, including fixed sleeve 10 and rotatable rotating cylinder 25 arranged in fixed sleeve 10, the rotating cylinder 25 is equipped with the through cavity 251 for placing detection tube, the fixed sleeve 10 is equipped with the material outlet 9 that can be communicated with through cavity 251, the rotating cylinder 25 is arranged along the axial movement of fixed sleeve 10 by displacement component, and the fixed sleeve 10 is equipped with a plurality of gas feeding assemblies along the moving direction of rotating cylinder 25, each gas feeding assembly includes intake pipe 24 and exhaust pipe 71 which are communicated with fixed sleeve 10 and oppositely arranged, and rotating cylinder 25 moves and cooperates with intake pipe 24 and exhaust pipe 71 of any one gas feeding assembly.The structure of fixed seat and the structure of rotating cylinder 25 can be set at will, as long as the above-mentioned effect is met. For example Figures 1-6 As shown in the figure, the fixed sleeve 10 of the present application is a through cavity 251 cylindrical structure, which is composed of an intermediate mounting sleeve 11 and a transition sleeve 12 arranged at both ends of the mounting sleeve 11, and the rotating cylinder 25 is arranged along the axial movement of the fixed sleeve 10 by the displacement component, and the fixed sleeve 10 is equipped with a plurality of gas feeding assemblies along the moving direction of the rotating cylinder 25, each gas feeding assembly includes intake pipe 24 and exhaust pipe 71 which are communicated with fixed sleeve 10 and oppositely arranged, and rotating cylinder 25 moves and cooperates with intake pipe 24 and exhaust pipe 71 of any one gas feeding assembly.The structure of fixed seat and the structure of rotating cylinder 25 can be set at will, as long as the above-mentioned effect is met. For example Figure 7 、 8 As shown in the figure, the rotating cylinder 25 is a cylindrical structure and is coaxially arranged with the fixed sleeve 10, and a partition block is arranged inside the rotating cylinder 25 to divide the inner cavity of the rotating cylinder 25 into two parts, and the through cavity 251 is arranged on the partition block. The outer wall of the rotating cylinder 25 is completely matched with the inner wall of the fixed cylinder, which can reduce the loss in the process of pneumatic transmission. The number of gas feeding assemblies can be set according to the use requirement, and in this embodiment, two gas feeding assemblies are arranged, which are arranged along the axial direction of the rotating cylinder 25. At the same time, the intake pipe 24 and the exhaust pipe 71 of each gas feeding assembly are oppositely arranged along the radial direction of the fixed sleeve 10, and a plurality of exhaust pipes 71 are respectively communicated with different detection areas (or detection chambers); each intake pipe 24 is connected with a gas nozzle 6 (in this figure, the structure of the intake pipe 24 is shown, and one of the intake pipes 24 is not connected with the gas nozzle 6). Therefore, during use, first control the rotating cylinder 25 to rotate to make the through cavity 251 communicated with the material inlet, ensure that the test tube moves into the through cavity 251, then control the displacement component to move the through cavity 251 with the test tube to the appropriate position of the gas feeding assembly, rotate the rotating cylinder 25 to make the through cavity 251 communicated with the intake pipe 24 and the exhaust pipe 71 used cooperatively at the same time, at this time, the compressed air is introduced from the intake pipe, and the test tube in the through cavity 251 can be blown out from the exhaust pipe 71 for pneumatic feeding. Since different exhaust pipes are connected with different detection areas, the test tubes guided from different exhaust pipes can enter different detection areas, so that the launching mechanism arranged in the present application can transmit the test tubes to different detection areas.

[0051] As shown in the figure, the structure of the fixed sleeve 10 of the present application is a through cavity 251 cylindrical structure, which is composed of an intermediate mounting sleeve 11 and a transition sleeve 12 arranged at both ends of the mounting sleeve 11, and the rotating cylinder 25 is arranged along the axial movement of the fixed sleeve 10 by the displacement component, and the fixed sleeve 10 is equipped with a plurality of gas feeding assemblies along the moving direction of the rotating cylinder 25, each gas feeding assembly includes intake pipe 24 and exhaust pipe 71 which are communicated with fixed sleeve 10 and oppositely arranged, and rotating cylinder 25 moves and cooperates with intake pipe 24 and exhaust pipe 71 of any one gas feeding assembly.The structure of fixed seat and the structure of rotating cylinder 25 can be set at will, as long as the above-mentioned effect is met. For example Figure 4 、 5As shown in the drawings, in order to easily position the air inlet pipe 24 and the air outlet pipe 71 during processing, a plurality of annular grooves 26 are arranged along the inner ring of the mounting sleeve 11 and are arranged along the axial direction, and any adjacent grooves 26 divide the mounting sleeve 10 into mounting spaces, and the air inlet pipe 24 and the air outlet pipe 71 of each air feeding assembly are arranged in any mounting space.

[0052] In order to facilitate the movement of the rotating cylinder 25 and the installation of the displacement assembly, in the embodiment, as shown in the drawings, Figures 1-3 the displacement assembly includes a moving seat 14 connected with the rotating cylinder 25, a rotating screw 23 threadedly connected with the moving seat 14, and a first servo motor 15 driving the rotating screw 23 to rotate. The rotating cylinder 25 is fixedly connected with a second servo motor 22 through a connecting shaft 27, and the second servo motor 22 is fixedly connected with the moving seat 14. The mounting sleeve 10 is fixed on a mounting base 13, the rotating screw 23 is rotationally connected with the mounting base 13, the first servo motor 15 is fixed on the bottom of the mounting base 13, a driving synchronous wheel 16 is arranged on the output shaft of the first servo motor 15, a driven synchronous wheel 18 is coaxially arranged on the rotating screw 23, and the driving synchronous wheel 16 and the driven synchronous wheel 18 are driven by a synchronous belt 17. In use, the first servo motor 15 is controlled to rotate by a PWM signal, the rotating screw 23 is driven to rotate by the driving synchronous wheel 16, the driven synchronous wheel 18 and the synchronous belt 17, the moving seat 14 is driven to move by the rotating of the rotating screw 23, and the second servo motor 22 and the rotating cylinder 25 are simultaneously moved to a suitable air feeding assembly position by the movement of the moving seat 14. At this time, the second servo motor 22 is rotated to make the through cavity 251 communicate with the air outlet pipe 71 and the air inlet pipe 24, and the air feeding of the air inlet pipe 24 can be realized to pneumatically feed the test tube in the through cavity 251.

[0053] As shown in the drawings, Figure 1 in order to ensure that the moving distance of the moving seat 14 can be adapted to each air feeding assembly and reduce the problem of power loss caused by the axial misalignment of the through cavity 251, the air inlet pipe 24 and the air outlet pipe 71 along the mounting sleeve 10, the moving seat 14 of the present application is provided with a plurality of displacement sensors matched and installed, the plurality of displacement sensors are arranged along the length direction of the rotating screw 23, and the arrangement distance between the plurality of sensors is the same as the arrangement distance between the plurality of air feeding assemblies. The sensors can be fixed by the mounting bracket 19 arranged on the mounting base 13. The arrangement of the sensors can improve the accuracy of the moving distance of the rotating cylinder 25, and further make the rotating cylinder 25 move smoothly to the suitable air feeding assembly position.

[0054] As shown in the drawings, Figure 6As shown in the figure, in order to ensure that the rotation of the rotating cylinder 25 is matched with the feeding port or the air inlet pipe 24 and the air outlet pipe 71, a U-shaped sensor 35 is fixed on the second servo motor 22, and a sensor blocking piece A 36 is arranged on the connecting shaft 27. When the sensor blocking piece A 36 rotates to the position of the U-shaped sensor 35 along with the rotation of the connecting shaft 27, it proves that the through cavity 251 is matched with the feeding port or the air inlet pipe 24 and the air outlet pipe 71, and the second servo motor 22 is reset to be matched with the air inlet pipe 24 and the air outlet pipe 71 or matched with the feeding port. Through the arrangement of the sensor, the positioning rotation of the rotating cylinder 25 can be realized, and then the smooth filling of the through cavity 251 can be ensured, and the dislocation probability of the through cavity 251 along the radial direction of the fixed sleeve 10 when matched with the air inlet pipe 24 and the air outlet pipe 71 can be reduced, and the energy loss can be reduced.

[0055] As shown in the figure, Figure 1 , 2 , in order to make the moving seat 14 move along the preset direction, a sliding through slot is arranged on the mounting seat 13, the rotating screw rod 23 and the fixed sleeve 10 are located on both sides of the sliding through slot, the moving seat 14 is threadedly connected with the rotating screw rod 23 through the sliding through slot, and the bottom of the moving seat 14 is provided with a sliding block 21 which is slidably connected with a slide rail 20 arranged on one side of the sliding through slot. The arrangement of the sliding through slot facilitates the position limitation of each component in space, and the arrangement of the slide rail 20 can ensure that the moving seat 14 moves along the preset direction. Since the mounting seat 13 of the present application is horizontally arranged, the moving seat 14 supports the second servo motor 22 with a certain weight, and the arrangement of the slide rail 20 can provide sufficient support force for the moving seat 14 and the second servo motor 22, thereby avoiding the problem that the position change of the moving seat 14 affects the moving precision of the rotating cylinder 25 after long time use.

[0056] The present application improves the structure of the discharge pipe, and also provides a pneumatic conveying device which is provided with the above-mentioned launching mechanism and further improves the structure of the discharge pipe.

[0057] As shown in the figure, Figure 1 , 2 , 8, 9, specifically, each air outlet pipe 71 is provided with a matching air supplement assembly, in order to facilitate the installation of the air supplement assembly, an air outlet pipe 7 is arranged on the air outlet pipe 71, and the air supplement assembly comprises a transition pipe 28 arranged in connection with the air outlet pipe 7 and an air supplement pipe 5 arranged outside the transition pipe 28, as shown in Figure 10 , 11 , 12, 13, the inner diameter of the transition pipe 28 is in a straight pipe structure, one end of the transition pipe 28 is arranged in connection with the air outlet pipe 71, and the other end of the transition pipe 28 is located in the air supplement pipe 5, and the outer diameter of the transition pipe 28 near the other end is arranged in a necked structure; as shown in Figure 10 , 11As shown in Figures 14 and 15, the inner diameter of the gas supply pipe 5 is varied, and along the test tube transfer direction, it includes a first straight pipe section 52, a constricted section 54, and a second straight pipe section 53 in sequence. The diameter of the first straight pipe section 52 is smaller than the diameter of the constricted section 54 and is equal to the diameter of the small end of the constricted section 54 and the diameter of the second straight pipe section 53. The first straight pipe section 52 is sleeved on the outside of the transition pipe 28 and fits snugly against the transition pipe 28. The constricted part of the outer diameter of the transition pipe 28 is located inside the constricted section 54 and the part is located inside the second straight pipe section 53. The constricted section 54 has a gas supply hole. The other end of the transition pipe 28 is located in the middle of the second straight pipe section 53. The gas outlet of the second straight pipe section 53 is connected to a branch pipe, and the gas supply port 51 is connected to the gas nozzle 6. A circular annular tube 29 is fitted outside the transition tube 28. The circular annular tube 29 is attached to the outer wall of the transition tube 28 and abuts against the lower end of the gas supply end, facilitating the positioning and installation of the gas supply tube 5 and the transition tube 28. In use, the test tube exiting from the outlet pipe 71 enters the gas supply tube 5 through the outlet pipe 7 and the transition tube 28. Compressed air is introduced into the gas supply port 51. Due to the structural limitations of the gas supply tube 5, the gas introduced from the gas supply port 51 creates a positive pressure space above the open end of the transition tube 28 and a negative pressure space below the open end of the transition tube 28. Since the transition tube 28 and the gas supply tube 5 are fitted together, air can enter through the gap during use, supplementing the pressure under negative pressure conditions, further driving the test tube through the gas supply tube 5, achieving the purpose of increasing the gas supply speed, and ensuring that the test tube can be smoothly transported to the target testing area for unloading.

[0058] like Figure 8 , 9 As shown, since test tubes are prone to blockage and jamming during transport, to ensure smooth entry into the target detection area, the outlet end of the branch pipe in this invention is equipped with a branch pipe connector 2, which connects to two transmission pipes 1. The branch pipe rotates under the action of the rotating assembly to connect with either transmission pipe 1 for material feeding. If one transmission pipe 1 becomes blocked, the rotating assembly controls the branch pipe to rotate and connect with the other transmission pipe 1, allowing continued material feeding to the target detection area.

[0059] To achieve the above objectives, such as Figures 16-20As shown, the branch pipe of the application includes a cylindrical body, an inclined channel 311 is arranged in the body, a stepped hole 312 is arranged at the lower end of the body and communicated with the channel 311, which can reduce energy loss and communicate with the connecting head 4 arranged at the second straight section, and the upper end of the body is embedded in the branch pipe joint 2 to facilitate the rotation of the branch pipe. In order to adapt to the structure of the branch pipe and realize the communication between the channel 311 and different transmission pipes 1, the rotating assembly of the application includes a mounting box 3 sleeved outside the branch pipe, a stepping motor 33 fixed in the mounting box 3, a rotating gear 32 coaxially arranged on the stepping motor 33, and a gear ring 34 engaged with the rotating gear 32, wherein the gear ring 34 is fixedly connected with the branch pipe outside the branch pipe, and the mounting box 3 is fixedly connected with the joint of the second straight section and the branch pipe. Figure 9 As shown, when any transmission pipe 1 is blocked, the stepping motor 33 rotates at this time, driving the rotating gear 32 and the gear ring 34 to rotate, and the gear ring 34 rotates, and since the branch pipe can rotate between the branch pipe joint 2 and the connecting head 4, the channel 311 of the branch pipe is communicated with another transmission pipe 1 to smoothly feed the material. In order to ensure that the blocked pipe in the transmission pipe 1 can be detected, a pressure sensor is arranged on each transmission pipe 1 and cooperates with the rotating assembly. When the pipe is blocked, the air flow to the corresponding transmission pipe 1 will change the air pressure, and the blocked pipe in the transmission pipe 1 can be identified by the change of the air pressure, and at this time, the stepping motor 33 rotates to communicate the channel 311 of the branch pipe with the transmission pipe 1 which is not blocked, and the material is smoothly fed.

[0060] Similarly, in order to ensure that the rotating distance of the branch pipe can be opposite to the gas inlet end of the transmission pipe 1 and smoothly connected, as shown, Figure 8 As shown, a sensor baffle B30 can also be arranged on the body of the branch pipe, and a U-shaped or concave U-shaped sensor B is arranged at a suitable position of the mounting box 3 and cooperates with the sensor baffle B30 (located at the rear position of the mounting box 3, affected by the field of view in the figure), the sensor baffle B30 rotates with the branch pipe, and when the sensor baffle B30 moves to a position suitable for the U-shaped or concave U-shaped sensor B, it proves that the branch pipe has rotated to the feeding end position of another transmission pipe 1, which ensures that the angle of the branch pipe rotation can be accurate and reduces the risk of pipe blockage.

[0061] As shown, Figure 8 , 9 In order to ensure that the test tube guided from the launching mechanism is smoothly discharged, the application also includes a transmission detection assembly, which includes a light sensor 81 arranged on the air outlet pipe 7. A sensor support 8 is arranged outside the air outlet pipe 7, and the light sensor 81 is fixed on the sensor support 8, and the light sensor 81 detects whether the material of the air outlet pipe 7 is smoothly discharged.

[0062] The present application utilizes the structure of the prior art, sets the feed inlet through the external fixing sleeve 10, sets the through cavity 251 through the built-in rotating cylinder 25, can realize the relative feeding of the rotating cylinder 25 and the feed inlet, the rotating cylinder 25 can rotate to make the through cavity 251 and the cooperating air inlet pipe 24, air outlet pipe 71 simultaneously communicate, at this time, the compressed air is introduced from the inlet pipe, the test tube in the through cavity 251 can be blown out from the air outlet pipe 71 to carry out pneumatic feeding; the present application is improved on the basis of the prior art, the rotating cylinder 25 is arranged along the axial movement of the fixing sleeve 10, and a plurality of air feeding assemblies cooperating with the rotating cylinder 25 are arranged, so that a plurality of air outlet pipes 71 can realize feeding of different detection areas, so that when used, only the through cavity 251 loaded with the test tube is moved to the appropriate air feeding assembly position and rotated, and the cooperating air inlet pipe 24 and air outlet pipe 71 are simultaneously communicated, so that the test tube can be fed to different detection areas, realizing the purpose of multiple area transmission of one launching mechanism.

[0063] The pneumatic transmission device of the present application is provided with the above-mentioned launching mechanism, can realize the purpose of feeding different detection areas, has a wider application range, so that one set of pneumatic transmission device can be used with multiple detection areas (or multiple detection chambers), solving the problem that multiple existing transmission devices are high in cost and one existing transmission device cannot realize multiple destination transmission.

[0064] The pneumatic transmission device of the present application is mainly used for transmitting the test tube after labeling and containing a detection sample to a detection area, and the label pasted on the test tube can be a general bar code, two-dimensional code, RFID label, etc., the RFID label can be used for inputting information, facilitating tracking of patient information, and being beneficial to reducing the influence of operation errors.

[0065] In the present application, unless otherwise specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrated; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0066] In the description of the application, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the application is used, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

Claims

1. A pneumatic transmission and launching mechanism for a detection tube, comprising a fixed sleeve (10) and a rotatable rotating cylinder (25) disposed within the fixed sleeve (10), wherein the rotating cylinder (25) is provided with a cavity (251) for placing the detection tube, and the fixed sleeve (10) is provided with a discharge port (9) communicating with the cavity (251), characterized in that: The rotating cylinder (25) is axially movable along the fixed sleeve (10) via a displacement assembly, and the fixed sleeve (10) is provided with multiple air supply assemblies along the moving direction of the rotating cylinder (25). Each air delivery assembly includes an air inlet pipe (24) and an air outlet pipe (71) that are connected to and opposite to the fixed sleeve (10). The rotating cylinder (25) moves to cooperate with the air inlet pipe (24) and air outlet pipe (71) of any air delivery assembly. The fixed sleeve (10) has a cylindrical structure with a through cavity (251). The outer wall of the rotating cylinder (25) is fitted to the inner wall of the fixed sleeve (10) and moves along the axial direction of the fixed sleeve (10). The through cavity (251) has a cylindrical structure and the axis of the through cavity (251) is perpendicular to the axis of the fixed sleeve (10). Inside the rotating cylinder (25), there is a dividing block that divides the inner cavity of the rotating cylinder (25) into two parts. The through cavity (251) is set on the dividing block. The fixed sleeve (10) is provided with a plurality of annular grooves (26) arranged around its interior and spaced apart along its axial direction. Any adjacent grooves (26) divide the fixed sleeve (10) into installation spaces. The air inlet pipe (24) and air outlet pipe (71) of each air supply component are arranged radially opposite to each other in any installation space along the fixed sleeve (10).

2. A pneumatic transmission and transmitting mechanism for a detection tube according to any one of claims 1, characterized in that: The displacement assembly includes a movable seat (14) connected to the rotating cylinder (25), a rotating screw (23) threadedly connected to the movable seat (14), and a first servo motor (15) that drives the rotating screw (23) to rotate.

3. The pneumatic transmission and transmitting mechanism for a detection tube according to claim 2, characterized in that: The rotating cylinder (25) is fixedly connected to the second servo motor (22) via the connecting shaft (27), and the second servo motor (22) is fixedly connected to the moving base (14).

4. A pneumatic transmission and transmitting mechanism for a detection tube according to claim 2 or 3, characterized in that: The fixed sleeve (10) is fixed on the mounting base (13). The rotating screw (23) and the first servo motor (15) are rotatably connected to the mounting base (13). The output shaft of the first servo motor (15) is provided with an active synchronous wheel (16). The rotating screw (23) is provided with a coaxial driven synchronous wheel (18). The active synchronous wheel (16) and the driven synchronous wheel (18) are driven by a synchronous belt (17).

5. The pneumatic transmission and transmitting mechanism for a detection tube according to claim 4, characterized in that: The mounting base (13) has a sliding groove. The rotating screw (23) and the fixed sleeve (10) are located on both sides of the sliding groove. The movable seat (14) passes through the sliding groove and is threadedly connected to the rotating screw (23). The movable seat (14) is slidably connected to the slide rail (20) provided on one side of the sliding groove.

6. A pneumatic transmission and transmitting mechanism for a detection tube according to claim 2 or 3, characterized in that: The movable seat (14) is equipped with multiple displacement sensors that are installed together. The multiple displacement sensors are arranged along the length direction of the rotating screw (23), and the arrangement distance between the multiple sensors is the same as the arrangement distance between the multiple air supply components.

7. A pneumatic transmission device, characterized in that: The invention includes a pneumatic transmission and transmitting mechanism for a detection tube as described in any one of claims 1-6.

8. A pneumatic transmission device according to claim 7, characterized in that: Each air outlet pipe (71) is equipped with a matching air supply component. The gas replenishment assembly includes an air outlet pipe (7) and a transition pipe (28) that are connected in sequence to the air outlet pipe (71), and a gas replenishment pipe (5) located outside the transition pipe (28). The inner diameter of the transition pipe (28) is a straight pipe structure. One end is connected to the air outlet pipe (7), and the other end is located inside the air supply pipe (5). The outer diameter of the transition pipe (28) near the other end is narrowed. The inner diameter of the gas supply tube (5) is set to vary, and along the test tube transmission direction, it includes a first straight tube section (52), a constricted section (54) and a second straight tube section (53) in sequence. The diameter of the first straight tube section (52) is smaller than the diameter of the end of the constricted section (54) and is equal to the diameter of the small end of the constricted section (54) and the diameter of the second straight tube section (53). The first straight pipe section (52) is fitted outside the transition pipe (28) and fits snugly against the transition pipe (28). The constricted part of the outer diameter of the transition pipe (28) is located inside the constricted section (54) and the part is located inside the second straight pipe section (53). The constricted section (54) is provided with an air inlet. The other end of the transition pipe (28) is located in the middle of the second straight pipe section (53). The air outlet end of the second straight pipe section (53) is connected to a branch pipe.

9. A pneumatic transmission device according to claim 8, characterized in that: The outlet end of the branch pipe is provided with a branch pipe connector (2), and the branch pipe connector (2) is connected to two transmission pipes (1). The branch pipe rotates under the action of the rotating component and connects with any transmission pipe (1) for feeding.

10. A pneumatic transmission device according to claim 9, characterized in that: The rotating assembly includes a mounting box (3) fitted outside the distribution pipe, a stepper motor (33) fixed inside the mounting box (3), a rotating gear (32) coaxially arranged with the stepper motor (33), and a gear ring (34) meshing with the rotating gear (32). The gear ring (34) is fixedly connected to the distribution pipe and fixed outside the distribution pipe. The mounting box (3) is fixed to the joint of the second straight section and the distribution pipe.

11. A pneumatic transmission device according to claim 10, characterized in that: Each transmission tube (1) is equipped with a pressure sensor that works in conjunction with the rotating assembly.

12. A pneumatic transmission device according to any one of claims 8-11, characterized in that: It also includes a transmission detection component, which includes a light sensor (81) disposed on the exhaust pipe (7).

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