A blood sample submission device
By setting up a dry ice storage box and periodic ventilation components in the blood sample delivery device, long-term, stable and low-temperature storage of blood samples and preventing coagulation are achieved, solving the problem of specimens deterioration during the inspection process, and ensuring the accuracy of the detection results.
Patent Information
- Application Number
- CN202211683791.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-12-27
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2042-12-27
AI Technical Summary
The existing blood sample testing device is difficult to provide a stable low-temperature environment during long-distance transportation, causing the specimen to deteriorate and affect the detection results.
A blood sample inspection device is designed, including a dry ice storage box, a gas storage component and a periodic ventilation component. The slowly evaporated low-temperature gas through dry ice enters the gas storage bag, circulates to the insulation chamber and contacts the blood specimen, periodically releases gas with a higher temperature, maintains a long-term and stable low-temperature environment, and prevents blood clotting through the lever.
It realizes long-term, stable and low-temperature storage of blood specimens to prevent coagulation and ensures the accuracy of the detection results.
Smart Images

Figure CN115783516B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of blood storage equipment, and more particularly, to a device for sending blood specimens for inspection. Background Art
[0002] The blood in the human body contains various nutrients, such as inorganic salts, oxygen, cell metabolites, hormones, enzymes, antibodies, etc. It has the functions of nourishing tissues, regulating organ activities, and defending against harmful substances. Blood stores human health information. In medical examinations, after medical staff draw blood, they use test tubes to store different blood samples, and then send them to the testing center for inspection by specialized staff in a safe manner. During the inspection process, a device is needed to protect and transfer these blood samples at the same time.
[0003] Existing methods for preserving blood specimens include immersing the sampling tube in an ice-water mixture or using dry ice in a box for low-temperature preservation. However, dry ice volatilizes too quickly, and it will vaporize to produce a large area of carbon dioxide during the refrigeration process. Therefore, if the time spent on the inspection journey is too long, the inspection device is difficult to provide a stable low-temperature preservation environment for the blood specimens, which easily leads to specimen deterioration and affects the test results. Summary of the Invention
[0004] The purpose of the present invention is to provide a device for sending blood specimens for inspection, in which the dry ice can slowly volatilize, provide a longer-lasting low-temperature environment for the specimens, and exhaust gas periodically to release carbon dioxide.
[0005] The embodiment of the present invention is realized by the following technical scheme: a blood specimen delivery device, comprising a box body and a box cover, wherein the box body is provided with a specimen accommodating assembly, an air storage assembly and a periodic ventilation assembly; the box body is provided with a dry ice storage box, and the bottom of the dry ice storage box is provided with an opening; the specimen accommodating assembly comprises an accommodating opening located on the surface of the box body, a rubber leather cover and a heat preservation cavity, wherein the rubber leather cover is provided at the lower end of the accommodating opening, the heat preservation cavity is wrapped around the outside of the rubber leather cover, and the heat preservation cavity is provided with an exhaust pipe joint; the air storage assembly comprises an air storage airbag, a first air guide pipe, a second air guide pipe and an air inlet channel, wherein the air storage airbag and the opening of the dry ice storage box are connected through the air inlet channel, and the first air guide pipe is provided with an exhaust pipe joint; The two ends of the tube are respectively connected to the air storage bag and the heat preservation chamber, and the two ends of the second air guide pipe are respectively connected to the air storage bag and the exhaust pipe joint; the periodic ventilation assembly includes a rotating plate, a limiting ring and a lever, one end of the rotating plate is rotatably connected to the side wall of the box body, the limiting ring is arranged in the middle of the rotating plate, so that the heat preservation chamber is inserted into the limiting ring, baffles are arranged on both sides of the rotating plate, and a guide rod is connected between the baffles, the guide rod passes through one end of the rotating plate and is slidably connected thereto, and a first return spring is sleeved on the guide rod to abut against the side of the rotating plate, and the rotating plate is periodically moved by rotating the lever to separate the exhaust pipe joint from the second air guide pipe.
[0006] Furthermore, one end of the lever is connected to a rotating shaft, both ends of the rotating shaft are respectively rotatably connected to the inner wall of the box body, and a cam is provided at the upper end of the rotating shaft; a switch plate is slidably connected to the bottom of the dry ice storage box, and the switch plate is provided with an opening corresponding to the exposure, one end of the switch plate is in rolling contact with the cam, and the other end of the switch plate is abutted against a second return spring, and the air intake channel is connected to the opening.
[0007] Furthermore, a first solenoid valve and a flow meter are installed on the first air duct, and a second solenoid valve is installed on the second air duct.
[0008] Furthermore, it also includes a pipeline connection component, which includes a tube body, a shell part, an electromagnetic coil, a magnetic ring and a handle, a accommodating cavity is provided between the tube body and the shell part, the handle is L-shaped, and one end of the handle is rotatably connected to the edge side of the tube body, an inclined driving block is fixed to the end face of the magnetic ring, and an inclined passive block matching the inclined driving block is fixed to the back side of the handle; an annular buckle groove is provided at the front end of the exhaust pipe joint, and the exhaust pipe joint is inserted into the accommodating cavity, and the electromagnetic coil is energized to drive the magnetic ring to move and squeeze the handle to be clamped into the annular buckle groove and fixed.
[0009] Furthermore, a sealing ring is embedded in the front end surface of the exhaust pipe joint.
[0010] Further, the first air duct is connected to the upper side of the heat preservation cavity, and the second air duct is connected to the lower side of the heat preservation cavity.
[0011] Further, fins are uniformly arranged at intervals from top to bottom on the outer part of the rubber sheath.
[0012] Further, an exhaust fan is provided outside the box body. The exhaust fan is connected with a third air duct, and one end of the third air duct is communicated with the middle part of the rubber sheath.
[0013] Further, the box body is of a closed structure, and a pressure relief valve communicated with the outside is installed on the side wall of the box body.
[0014] Further, a sponge layer is arranged on the inner surface of the rubber sheath.
[0015] The technical solution of the embodiment of the present invention has at least the following advantages and beneficial effects: Compared with the prior art, in the present invention, a part of the cold air slowly volatilizes from the open mouth of the dry ice storage box and enters the air storage airbag. Under the extrusion of the air storage airbag, the cold air will enter the gap between the heat preservation cavity and the rubber sheath along the first air duct, so as to achieve low-temperature preservation of the blood specimen inserted into the rubber sheath. Moreover, the cold air can also return to the air storage airbag along the second air duct for circulation, so as to provide longer and more stable low-temperature preservation for the blood sample. At the same time, the lever can periodically separate the second air duct from the heat preservation cavity, so that a part of the cold air with higher temperature can be released from the circulation pipeline to prevent too much gas from being stored in the air storage airbag. At the same time, when the lever drives the rotating plate, it can drive the blood sample to shake once, playing a certain role in preventing blood coagulation. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required to be used in the embodiment will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.
[0017] Figure 1 It is a schematic diagram of the overall structure of the blood specimen inspection and delivery device provided in Embodiment 1 of the present invention;
[0018] Figure 2 It is a schematic diagram of the structure when the blood sampling tube in Embodiment 1 of the present invention is placed into the box body;
[0019] Figure 3 It is a schematic diagram of a partial structure of the specimen accommodating assembly in the present invention;
[0020] Figure 4It is a structural schematic diagram of the present invention when the lever moves the rotating plate;
[0021] Figure 5 It is a structural schematic diagram of the present invention when the lever in the present invention moves the rotating plate to deflate;
[0022] Figure 6 It is a schematic diagram of the structure when the exhaust pipe joint and the pipe connection assembly in the present invention are separated;
[0023] Figure 7 It is a schematic diagram of the structure when the exhaust pipe joint and the pipe connection assembly in the present invention are buckled together;
[0024] Figure 8 It is a partial structural schematic diagram of the dry ice storage box and the switch plate in the present invention.
[0025] Icons: 10-specimen holding assembly, 101-holding port, 102-rubber holster, 103-insulation chamber, 104-exhaust pipe joint, 1041-annular buckle groove, 1042-sealing ring, 105-sponge layer, 106-third air duct, 107-exhaust fan, 108-fin, 20-air storage assembly, 201-air storage airbag, 202-intake channel, 203-first air duct, 2031-first solenoid valve, 2032-flow meter, 204-second air duct, 2041-second solenoid valve, 30-periodic ventilation assembly, 301-rotation Plate, 302-limiting ring, 303-shift rod, 304-baffle, 305-guide rod, 306-first return spring, 307-rotating shaft, 308-cam, 40-box, 50-box cover, 60-dry ice storage box, 601-opening, 602-switch plate, 6021-opening, 603-second return spring, 70-battery, 80-pressure relief valve, 90-pipeline connection assembly, 901-housing, 902-tube body, 903-electromagnetic coil, 904-magnetic ring, 905-inclined drive block, 906-inclined passive block, 907-handle. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, 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 part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.
[0027] Accordingly, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.
[0028] It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.
[0029] Embodiment 1
[0030] The following is further described in conjunction with specific embodiments, with reference to Figures 1-8As shown, this embodiment 1 is a blood specimen inspection device, including a box body 40 and a box cover 50, wherein the box body 40 is provided with a specimen holding assembly 10, an air storage assembly 20 and a periodic ventilation assembly 30; a dry ice storage box 60 is provided on the box body 40, and an opening 601 is provided at the bottom of the dry ice storage box 60; the specimen holding assembly 10 includes a holding opening 101, a rubber leather cover 102 and a heat preservation cavity 103 located on the surface of the box body 40, the rubber leather cover 102 is provided at the lower end of the holding opening 101, the heat preservation cavity 103 is wrapped around the outside of the rubber leather cover 102, and the heat preservation cavity 103 is provided with an exhaust pipe joint 104; the air storage assembly 20 includes an air storage airbag 201, a first air guide pipe 203, a second air guide pipe 204 and an air inlet channel 202, through which the air storage airbag 201 and the opening 601 of the dry ice storage box 60 are connected, and the first air guide pipe 204 is connected to the air inlet channel 202. The two ends of the tube 203 are respectively connected to the air storage bag 201 and the heat preservation chamber 103, and the two ends of the second air guide pipe 204 are respectively connected to the air storage bag 201 and the exhaust pipe joint 104; the periodic ventilation component 30 includes a rotating plate 301, a limiting ring 302 and a lever 303, one end of the rotating plate 301 is rotatably connected to the side wall of the box body 40, the limiting ring 302 is arranged in the middle of the rotating plate 301, so that the heat preservation chamber 103 is inserted into the limiting ring 302, baffles 304 are arranged on both sides of the rotating plate 301, and a guide rod 305 is connected between the baffles 304, the guide rod 305 passes through one end of the rotating plate 301 and is slidably connected thereto, and a first return spring 306 is sleeved on the guide rod 305 to abut against the side of the rotating plate 301, and the rotating plate 301 is periodically toggled by rotating the lever 303, so that the exhaust pipe joint 104 is separated from the second air guide pipe 204;Specifically, during the use of the present invention, dry ice can be replaceably placed in a professional dry ice storage box 60 for storage. The dry ice volatilizes through the open bottom 601 to generate low-temperature gas, which enters the gas storage airbag 201 through the flexible air inlet channel 202 for temporary storage. After the gas storage airbag 201 stores a certain amount of low-temperature gas, there will be a certain air pressure, which can enter the gap between the heat preservation cavity 103 and the rubber sleeve 102 along the first air duct 203. The rubber sleeve 102 can be tightly attached to the sampling tube, and the low-temperature gas can be better and more fully transmitted to the blood sample through the rubber sleeve 102. In addition, the low-temperature gas can circulate back to the storage airbag along the second air duct 204. After a certain period of time, the temperature of the gas in the circulation pipeline will rise. The lever 303 rotates to drive the rotating plate 301 to rotate around one end thereof, and the limiting ring 302 pulls the heat preservation cavity 103 and the sampling tube, so that the connection between the exhaust pipe joint 104 and the second air duct 204 is separated. A part of the gas in the circulation pipeline will be released and discharged, making the whole device safer. The dry ice can volatilize new low-temperature gas to supplement and enter the pipeline, so as to ensure a more lasting and stable low-temperature preservation state of the blood sample. After the contact between the lever 303 and the tail end of the rotating plate 301 is disconnected, under the action of the arc-shaped guide rod 305 and the first return spring 306, the exhaust pipe joint 104 is reconnected to the second air duct 204. The exhaust pipe joint 104 and the second air duct 204 can be connected by strong magnetic attraction, and the position of one end of the second air duct 204 is fixed, which is convenient for the exhaust pipe joint 104 to be reconnected.;
[0031] It should be noted that during the process of the lever 303 driving the rotating plate 301 to rotate, the sampling tube of the blood sample can also be shaken, which can prevent blood coagulation to a certain extent. The periodic interval and rotation speed of the lever 303 are determined according to actual use. For example, the motor controls the frequency of the lever through a timer.
[0032] In addition, referring to Figure 1 、 Figure 4 and Figure 5As shown, one end of the lever 303 is connected to a rotating shaft 307. Both ends of the rotating shaft 307 are rotatably connected to the inner wall of the box body 40. A cam 308 is provided at the upper end of the rotating shaft 307. The bottom of the dry ice storage box 60 is slidably connected with a switch plate 602. The switch plate 602 is provided with an opening 6021 corresponding to the open end 601. One end of the switch plate 602 is in rolling contact with the cam 308. The other end of the switch plate 602 abuts against a second return spring 603. The air inlet passage 202 is connected to the opening 6021. Specifically, the rotating shaft 307 is driven by a motor. When the rotating shaft 307 drives the lever 303 to rotate and separate the exhaust pipe joint 104, the cam 308 at the top also starts to squeeze the opening 6021 on the switch plate 602 to gradually coincide with the open end 601. Then, the low-temperature gas generated by the sublimation of dry ice enters the storage airbag for replenishment. When the lever 303 stops, under the action of the second return spring 603, the opening 6021 is completely misaligned with the open end 601, and the replenishment of dry ice into the storage airbag stops. Therefore, when the rotating shaft 307 rotates, the circulation pipeline can release a part of the relatively high-temperature gas and replenish a certain amount of new low-temperature gas into the circulation pipeline, so as to ensure that a stable low-temperature gas can act on the blood sample.
[0033] Specifically, referring to Figure 1 and Figure 4 As shown, a first solenoid valve 2031 and a flowmeter 2032 are installed on the first air duct 203, and a second solenoid valve 2041 is installed on the second air duct 204. The first solenoid valve 2031 and the second solenoid valve 2041 are one-way valves. The gas circulation speed is controlled by the flowmeter 2032. At the same time, when the motor starts, the first solenoid valve 2031 and the second solenoid valve 2041 are powered off, and the heat preservation cavity 103 is separated from the exhaust pipe joint 104, so that only the relatively high-temperature gas in this section of space can be discharged, that is, the gas in the pipe from the first solenoid valve 2031 to the heat preservation cavity 103 to the second solenoid valve 2041 is discharged.
[0034] Referring to Figure 5 、 Figure 6 and Figure 7As shown in the figure, in order to improve the connection firmness between the exhaust pipe joint 104 and the second air duct 204, this embodiment further includes a pipeline connection assembly 90. The pipeline connection assembly 90 is arranged at the front end of the second air duct 204 for cooperating with the exhaust pipe joint 104. The pipeline connection assembly 90 includes a pipe body 902, a sleeve part 901, an electromagnetic coil 903, a magnetic ring 904, and a buckle 907. There is an accommodation cavity between the pipe body 902 and the sleeve part 901. The buckle 907 is L-shaped, and one end of the buckle 907 is rotatably connected to the edge side of the pipe body 902. A bevel driving block 905 is fixed to the end face of the magnetic ring 904, and a bevel driven block 906 that cooperates with the bevel driving block 905 is fixed to the back side of the buckle 907. An annular buckle groove 1041 is provided at the front end of the exhaust pipe joint 104. The exhaust pipe joint 104 is inserted into the accommodation cavity, and the magnetic ring 904 is driven to move by energizing the electromagnetic coil 903 to squeeze the buckle 907 into the annular buckle groove 1041 for fixation. Specifically, before the connection between the second air duct 204 and the exhaust pipe joint 104 is separated, the rotating plate 301 is perpendicular to the pipe body 902, and the magnetic ring 904 is sleeved outside the pipe body 902, and the axis of the magnetic ring 904 is consistent with the axis of the pipe body 902. When the motor is energized to drive the lever 303 to rotate, the electromagnetic coil 903 is energized to generate a suction force opposite to the magnetic force of the magnetic ring 904. Then the magnetic ring 904 moves towards the side of the electromagnetic coil 903, so that the bevel driving block 905 moves inwards. The lever 303 drives the rotating plate 301 to rotate a certain angle. Then the limiting ring 302 pulls the exhaust pipe joint 104 outwards, the buckle 907 flips outwards and the fixation with the annular buckle groove 1041 is released. A part of the gas in the heat preservation cavity 103 is discharged from the exhaust pipe joint 104. On the contrary, under the action of the first return spring 306, the rotating plate 301 rotates back along the guide rod 305, the front end face of the exhaust pipe joint 104 abuts against the end face of the pipe body 902 again, and the energizing direction of the electromagnetic coil 903 is changed, so that a repulsive force identical to the magnetic force of the magnetic ring 904 is generated and pushed out axially through the bevel driving block 905. The bevel driving block 905 drives the bevel driven block 906, so that the L-shaped buckle 907 is buckled into the annular buckle groove 1041 to achieve a more reliable connection.
[0035] In order to improve the gas tightness after the exhaust pipe joint 104 and the pipe body 902 are reconnected, a sealing ring 1042 is embedded in the front end face of the exhaust pipe joint 104. Specifically, the sealing ring 1042 is arranged between the extrusion seams between the exhaust pipe joint 104 and the pipe body 902. Under the extrusion action of the magnetic ring 904, the sealing ring 1042 can be compressed and deformed to block the gap, thereby preventing the leakage of low-temperature gas.
[0036] Refer to Figure 2As shown, due to the characteristics of air, the first air duct 203 is connected to the upper side of the heat preservation cavity 103, and the second air duct 204 is connected to the lower side of the heat preservation cavity 103. The low-temperature cold air will sink. Therefore, when the first air duct 203 inputs cold air into the heat preservation cavity 103, the cold air will fill the gap from top to bottom, and evenly transfer the temperature to the blood sample.
[0037] Refer to Figure 3 As shown, fins 108 are arranged on the outside of the rubber sheath 102 at evenly spaced intervals from top to bottom; specifically, the rubber sheath 102 can closely adhere to the sampling tube according to its shape, which is beneficial to the conduction of low-temperature gas. However, the thermal conductivity of the rubber sheath 102 is not good, and the metal fins 108 are beneficial to maintaining low temperature.
[0038] Refer to Figure 1 As shown, in order to facilitate the blood sample to be put into the rubber sheath 102 through the receiving port 101, an exhaust fan 107 is provided outside the box body 40. The exhaust fan 107 is connected to a third air duct 106, and one end of the third air duct 106 is connected to the middle of the rubber sheath 102; specifically, the gap between the rubber sheath 102 and the sampling tube is small. During the putting-in process, the air in the rubber sheath 102 is not easy to be discharged. By exhausting air with the exhaust fan 107, the rubber sheath 102 shrinks and closely fits with the sampling tube. When the sampling tube needs to be taken out, the exhaust fan 107 inflates the gap between the rubber sheath 102 and the sampling tube, and the sampling tube can be taken out more conveniently, avoiding the sampling tube being too tightly adhered to the rubber sheath 102. At the same time, the exhaust fan 107 with both exhaust and inflation functions belongs to the prior art, so it will not be elaborated here.
[0039] In addition, the box body 40 is a closed structure, and a pressure relief valve 80 communicating with the outside is installed on the side wall of the box body 40. The temperature of the discharged carbon dioxide gas is also lower than the air temperature between the box bodies 40, and it can be temporarily stored in the external space between the box body 40 and the heat preservation cavity 103. The pressure relief valve 80 is used to ensure that the air pressure inside and outside the box body 40 is the same, with higher safety.
[0040] Refer to Figure 3 As shown, in addition, before the sampling tube is inserted into the receiving port 101, the contact between the rubber sheath 102 and the external air will cause a part of the water to liquefy on its surface. By providing a sponge layer 105 on the inner surface of the rubber sheath 102 to absorb water, the label on the surface of the sampling tube can be prevented from being wetted by water.
[0041] In addition, refer to Figure 1 As shown, there is a partition layer at the bottom of the box body 40, and a detachable and replaceable storage battery 70 is placed in the partition layer. The storage battery 70 is placed in the box body 40 and docked with a preset socket therein, and the storage battery 70 supplies power to the internal electrical units such as the motor and the exhaust fan 107.
[0042] Example 2
[0043] On the basis of Example 1, the difference between Example 2 and Example 1 is that the front end of the exhaust pipe joint 104 is provided with a permanent magnet suction ring, and the front end of the second air duct 204 is embedded with a permanent magnet suction ring with a magnetic force opposite to it, and when the lever 303 moves the rotating plate 301, the pulling force separates the magnetic force, and under the rebound action of the first return spring 306, the exhaust pipe joint 104 can be adsorbed together with the second air duct 204 again.
[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A blood specimen submission device, comprising a box body and a box cover, characterized in that: The box body is provided with a specimen containing component, an air storage component and a periodic ventilation component; A dry ice storage box is provided on the box body, and an opening is provided at the bottom of the dry ice storage box; The specimen holding assembly comprises a holding port, a rubber cover and a heat preservation cavity located on the surface of the box body, wherein the rubber cover is arranged at the lower end of the holding port, the heat preservation cavity is wrapped around the outside of the rubber cover, and the heat preservation cavity is provided with an exhaust pipe joint; The gas storage assembly includes a gas storage bag, a first gas guide pipe, a second gas guide pipe and an air inlet passage, the gas storage bag and the open opening of the dry ice storage box are connected through the air inlet passage, the two ends of the first gas guide pipe are respectively connected to the gas storage bag and the heat preservation chamber, and the two ends of the second gas guide pipe are respectively connected to the gas storage bag and the exhaust pipe joint; The periodic ventilation assembly includes a rotating plate, a limiting ring and a lever, one end of the rotating plate is rotatably connected to the side wall of the box body, the limiting ring is arranged in the middle of the rotating plate, so that the insulation chamber is inserted into the limiting ring, baffles are arranged on both sides of the rotating plate, a guide rod is connected between the baffles, the guide rod passes through one end of the rotating plate and is slidably connected thereto, and a first return spring is sleeved on the guide rod and abuts against the side surface of the rotating plate, and the rotating plate is periodically moved by rotating the lever, so that the exhaust pipe joint is separated from the second air guide pipe.
2. The blood specimen submission device according to claim 1, wherein: One end of the lever is connected to a rotating shaft, both ends of the rotating shaft are respectively rotatably connected to the inner wall of the box body, and a cam is arranged on the upper end of the rotating shaft; A switch plate is slidably connected to the bottom of the dry ice storage box, and the switch plate is provided with an opening corresponding to the opening. One end of the switch plate is in rolling contact with the cam, and the other end of the switch plate is abutted against a second return spring, and the air intake channel is connected to the opening.
3. The blood sample submission device according to claim 2, wherein: A first solenoid valve and a flow meter are installed on the first air duct, and a second solenoid valve is installed on the second air duct.
4. The blood specimen submission device according to any one of claims 1-3, characterized in that: It also includes a pipeline connection assembly, which includes a pipe body, a casing, an electromagnetic coil, a magnetic ring and a buckle, a receiving cavity is provided between the pipe body and the casing, the buckle is L-shaped, and one end of the buckle is rotatably connected to the edge side of the pipe body, an inclined driving block is fixed to the end surface of the magnetic ring, and an inclined passive block matched with the inclined driving block is fixed to the back side of the buckle; An annular buckle groove is provided at the front end of the exhaust pipe joint, and the exhaust pipe joint is inserted into the accommodating cavity. The electromagnetic coil is energized to drive the magnetic ring to move and squeeze the buckle hand to be clamped into the annular buckle groove and fixed.
5. The blood sample submission device according to claim 4, wherein: A sealing ring is embedded in the front end surface of the exhaust pipe joint.
6. The blood specimen submission device according to claim 1, wherein: The first air duct is connected to the upper side of the heat preservation chamber, and the second air duct is connected to the lower side of the heat preservation chamber.
7. The blood specimen submission device according to claim 6, wherein: The outside of the rubber sheath is provided with fins which are evenly spaced from top to bottom.
8. The blood specimen submission device according to claim 1, wherein: An exhaust fan is arranged outside the box body, and the exhaust fan is connected to a third air duct, and one end of the third air duct is communicated with the middle part of the rubber holster.
9. The blood specimen submission device according to claim 1, characterized in that: The box body is a closed structure, and a pressure relief valve communicating with the outside is installed on the side wall of the box body.
10. The blood specimen submission device according to claim 1, wherein: The inner surface of the rubber cover is provided with a sponge layer.
Citation Information
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Medical cold -stored insulation can that shifts
CN205441399U
Storage box for blood disease detection test tubes
CN210365142U