A blood perfusion adsorbent screening device

Abstract

The invention relates to the field of screening technology, and specifically discloses a blood perfusion adsorbent screening device, wherein a base is rotatably provided with a plurality of telescopic parts, and a screening box is rotatably provided on the telescopic parts, a guide rail 1 is provided in the shell body for driving the screening box to swing upward, a driving part 1 is coaxially provided in the shell body, and a driving part 2 cooperating with the driving part 1 is provided at one end of the screening box away from the base; a filter plate 1 and a filter plate 2 are provided in the screening box, and the filter plate 1 and the filter plate 2 divide the screening box into a filter chamber 1, a filter chamber 2 and a filter chamber 3 from top to bottom, and the bottoms of the filter chamber 1, the filter chamber 2 and the filter chamber 3 near the end of the base are respectively provided with a discharge pipe, and a discharge part is coaxially provided in the shell body, and the discharge part has discharge bins corresponding to the filter chamber 1, the filter chamber 2 and the filter chamber 3 respectively, and the three discharge pipes are connected to the corresponding discharge bins through flexible pipes; a baffle cooperating with the discharge pipe is slidably provided on the screening box through the elastic part 3. The present invention is conducive to efficient and continuous screening of the adsorbent.

Description

Technical Field

[0001] The present invention relates to the field of screening technology, in particular to a blood perfusion adsorbent screening device. Background Art

[0002] The hemoperfusion device is a medical device mainly used for blood purification treatment. It uses adsorption through extracorporeal circulation to remove toxic substances from the blood. It is a way of blood purification and is mainly used for the adsorption of molecular toxins in acute and chronic drug poisoning, uremia, and the adsorption of pathogenic factors in liver disease and immunity. Its main application methods include a single hemoperfusion mode, a hemodialysis combined with hemoperfusion mode, and a plasma separation adsorption mode. The adsorbent in the hemoperfusion device is usually activated carbon or resin. The particle size of the hemoperfusion adsorbent used for different needs is different. For example, for macromolecular substances, adsorption materials with larger pore size and higher specific surface area are often used. For drug poisoning or metabolic waste, adsorbents with smaller particle size are required. Therefore, the produced adsorbent particles need to be screened to meet the use requirements.

[0003] The Chinese patent with announcement number CN214865310U discloses a sorting device for blood perfusion adsorbent, including a discharging system, a sorting system and a control system. The discharging system includes a silo bracket, a support plate is provided on the top of the silo bracket, symmetrical support rods are provided on both sides of the support plate, the top of the support rod is connected to the support ring, a storage bin is provided in the support ring, a feed port is provided on the top of the storage bin, a discharge port is provided at the bottom of the storage bin, a blanking plate is provided directly below the discharge port, the bottom of the blanking plate is connected to a vibration motor fixed to the support plate, and the opening direction of the blanking plate is perpendicular to the direction of the connection line of the two support rods; the sorting system includes a sorting bracket, the sorting The bracket is an A-shaped bracket, and a first travel switch is provided on one side of the sorting bracket close to the silo bracket, and a second travel switch is provided on the other side of the sorting bracket. The height of the second travel switch is higher than that of the first travel switch. A sorting plate and a rotating motor are provided on the top of the sorting bracket, and the middle part of the sorting plate is connected to the rotating motor. The end of the sorting plate close to the blanking plate is a first port, and the first port is located below the blanking plate. The end of the sorting plate away from the blanking plate is a second port. An unqualified silo is provided on one side of the sorting bracket corresponding to the first port, and a qualified silo is provided on the other side of the sorting bracket corresponding to the second port.

[0004] During implementation of the above technical solution, adsorbent to be sorted is placed into a storage bin. The adsorbent falls onto a discharge plate through a discharge port at the bottom of the bin. The control system activates the rotary motor to drive the sorting plate. When the bottom of the sorting plate touches the second limit switch, the control system stops the rotary motor and activates the vibration motor. The vibration motor vibrates the discharge plate, gradually shaking the adsorbent to the opening of the discharge plate and onto the sorting plate. Qualified, uniform, round adsorbent particles can overcome friction and roll down the sorting plate into the qualified hopper. Unqualified broken or half particles remain on the sorting plate because the friction between them and the sorting plate is greater than gravity. After the vibration motor has operated for a period of time, the control system stops the vibration motor and simultaneously controls the rotary motor to rotate in the opposite direction, driving the sorting plate to rotate in the opposite direction. When the bottom of the sorting plate touches the first limit switch, the control system stops the rotary motor. At this point, the sorting plate is tilted at a large angle. Unqualified adsorbent particles remaining on the sorting plate fall along the sorting plate into the unqualified hopper because their gravity is greater than friction. After all the unqualified adsorbent has fallen into the unqualified hopper, the control system controls the rotary motor to drive the sorting plate to continue rotating, repeating the above steps until there is no more adsorbent on the discharge plate. However, this process requires repeated rotation of the sorting plate to sort the adsorbent particles into the corresponding hopper, which is inefficient. Moreover, the overall equipment is relatively scattered, which makes it difficult to make good use of space. Summary of the Invention

[0005] The present invention provides a blood perfusion adsorbent screening device, which aims to solve the problem in the related art that it is difficult to screen the adsorbent efficiently and continuously.

[0006] A blood perfusion adsorbent screening device includes a shell, a base is coaxially rotated in the shell, a plurality of telescopic parts are rotated at intervals along its circumference on the base, a screening box is rotated at one end of the telescopic part away from the base through an elastic part, a guide rail for driving the screening box to swing upward is provided in the shell, a driving part is coaxially provided in the shell, and a driving part cooperating with the driving part is provided at one end of the screening box away from the base; a filter plate 1 and a filter plate 2 are provided in the screening box, and the filter plates 1 and 2 divide the screening box into a filter chamber 1, a filter chamber 2 and a filter chamber 3 from top to bottom, and the filter chambers 1, 2 and 3 are close to one end of the base. A discharge pipe is provided at the bottom, a discharge part is coaxially provided in the shell, and the discharge part has discharge bins corresponding to filter chamber one, filter chamber two and filter chamber three respectively. The three discharge pipes are connected with the corresponding discharge bins through flexible tubes respectively; a baffle which cooperates with the discharge pipe is provided on the screening box through the sliding of elastic part three, and a matching block for enabling the baffle to open the discharge pipe is provided on the guide rail one; an automatic unloading bin is provided on the shell, and when the base rotates, the driving part one can drive the driving part two, so that the telescopic part can reciprocate and retract, and the screening box can reciprocate and deflect relative to the telescopic part. When the upper end of the screening box is horizontal, the automatic unloading bin can add adsorbent into the screening box.

[0007] The beneficial effects of the present invention are as follows: during the rotation of the base, the automatic discharge bin can quantitatively add the adsorbent particles to be screened into the screening box, and then under the action of the driving member 1, the telescopic member can reciprocate and retract, and the screening box can deflect back and forth relative to the telescopic member, thereby making the adsorbent particles in the screening box be well screened; as the base rotates, when the baffle and the matching block stop, the baffle can open the discharge pipe, and at this time the screened adsorbent particles can be discharged through the corresponding discharge pipe for easy classification and storage, thereby achieving efficient screening of the adsorbent particles.

[0008] Preferably, the second driving member includes a guide rod 1 fixedly connected to the screening box and a bevel gear coaxially arranged on the guide rod 1. The driving member 1 includes an annular member fixedly connected to the shell. The inner ring side of the annular member is alternately provided with a plurality of guide block groups cooperating with the guide rod 1 and a rack group cooperating with the bevel gear along its circumference. The inner ring side of the annular member has a smooth surface cooperating with the guide rod 1; when the guide rod 1 moves to a position corresponding to the smooth surface, the guide rod 1 does not stop with the smooth surface. During this process, the screening box can discharge materials when it contacts the guide rail 1. After the screening box is out of contact with the matching block, the automatic unloading bin can quantitatively add the adsorbent particles to be screened into the screening box.

[0009] Preferably, the guide block group includes a plurality of protrusions arranged at intervals, and the rack group includes a plurality of arc-shaped bevel racks alternately arranged up and down along the circumference of the annular member; when the guide rod 1 passes through the guide block group, the plurality of protrusions can reciprocate to stop the guide rod 1, so that the elastic member 1 is squeezed back and forth, thereby causing the telescopic member to reciprocate and retract, so that the screening box can move back and forth along the telescopic direction of the telescopic member to assist in screening the adsorbent in the screening box; when the guide rod 1 passes through the rack group, the bevel gear can alternately engage with the bevel racks located at the upper and lower ends of the bevel gear. Therefore, under the action of the elastic member 2, the screening box can deflect back and forth around the telescopic member to assist in screening the adsorbent in the screening box.

[0010] Preferably, when the screening box is disengaged from the guide rail, the bevel gear is located between the upper and lower bevel racks, so that during the rotation of the base, the bevel gear can engage with the upper and lower bevel racks respectively, thereby realizing the screening of the adsorbent in the screening box.

[0011] Preferably, an elastic member 1 is provided in the telescopic member, and a mounting groove for mounting the telescopic member is provided on the base. When the telescopic member rotates until it abuts against the lower end surface of the mounting groove, the telescopic member is in a horizontal state.

[0012] Preferably, the filter chamber one, the filter chamber two and the filter chamber three are respectively provided with a guide plate at one end close to the base for guiding the screened adsorbent to the corresponding discharge pipe. The setting of the guide plate facilitates the discharge of the adsorbent particles in the filter chamber one, the filter chamber two and the filter chamber three during the discharge process of the screening box.

[0013] Preferably, filter plate one and filter plate two in the screening box are arranged in sequence from top to bottom, the filter holes of filter plate one are larger than the filter holes of filter plate two, the top of the screening box has a feed pipe in the shape of an arc groove, the top of the shell has an opening that cooperates with the feed pipe, and the lower end of the automatic unloading bin has a material guide pipe that cooperates with the feed pipe.

[0014] Preferably, the bottoms of the three discharge bins are respectively fixed with discharge pipes connected to the interiors of the corresponding discharge bins, and the three discharge bins are respectively coaxially rotatably provided with retaining rings, the retaining rings have connection ports that are the same number as the screening boxes, the two ends of the flexible tube are respectively connected to the connection ports and the discharge pipes, and the retaining rings are fixedly connected to the base; thereby, the retaining rings can rotate synchronously with the base, and the connection ports on the retaining rings can be connected to the corresponding discharge pipes on the screening box through the flexible tubes at all times, thereby facilitating the discharge of the screened adsorbent particles in filter chamber one, filter chamber two and filter chamber three.

[0015] Preferably, the bottom of the screening box has a roller, and the guide rail one has a guide surface one, a horizontal surface and a guide surface two that cooperate with the roller. When the roller and the horizontal surface are stopped, the screening box is in an upward swinging state, and the guide rail one is located below the smooth surface; at this time, the screened adsorbent particles in the filter chamber one, the filter chamber two and the filter chamber three can be discharged smoothly through the discharge pipe.

[0016] Preferably, the screening box is provided with an unlocking piece which slides through the elastic piece four, and a locking rod which slides through the elastic piece five. The lower end of the baffle is provided with a guide rod two. When the roller abuts against the horizontal plane, the unlocking piece abuts against the top wall of the shell and drives the locking rod to disengage the baffle from locking. The baffle moves down to fully open the discharge pipe. Subsequently, during the process of the guide rod two abutting against the matching block, the roller disengages from the guide rail one, the baffle moves up and completely blocks the discharge pipe, and the locking rod locks the baffle.

[0017] By adopting the above technical solution, the beneficial effects of the present invention are:

[0018] 1. During the rotation of the base, when the roller passes through the guide surface 1 and moves to the horizontal plane, the screening box is in a state of swinging upward to a fixed inclination angle. At this time, the baffle moves down to fully open the discharge pipe, and the screened adsorbent particles in the filter chamber 1, the filter chamber 2 and the filter chamber 3 can enter the corresponding discharge bin through the corresponding discharge pipe, and then be discharged from the corresponding discharge pipe; then, when the roller moves from the horizontal plane to the guide surface 2 and leaves the guide surface 2, the baffle moves up and completely blocks the discharge pipe. As the base continues to rotate, the automatic discharge bin will discharge a certain amount of adsorbent particles downward. Then, the screening box can move back and forth along the telescopic direction of the telescopic part, and can also deflect back and forth around the telescopic part to assist in screening the adsorbent in the screening box.

[0019] 2. When the roller passes the guide surface one and moves to the horizontal plane again, the screening box is in a state of swinging upward to a fixed tilt angle. At this time, the baffle moves down to fully open the discharge pipe, and the screened adsorbent particles in the filter chamber one, the filter chamber two and the filter chamber three can enter the corresponding discharge bin through the corresponding discharge pipe, and then be discharged from the corresponding discharge pipe; then, when the roller moves from the horizontal plane to the guide surface two and leaves the guide surface two, the upper end surface of the screening box returns to a horizontal state, the guide rod one faces the smooth surface, and then the matching block gradually pushes the guide rod two upward to move the baffle up and completely block the discharge pipe, the locking rod locks the baffle, and then the guide rod two is out of contact with the matching block; therefore, in the process of the screening box rotating one circle with the base, the loading, screening and discharge of the adsorbent particles are realized, the operation is efficient and convenient, and continuous screening can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a partial cross-sectional view of the housing of the present invention.

[0022] Figure 3 It is a schematic diagram of the structure inside the shell of the present invention.

[0023] Figure 4 Schematic diagram of the coordination between the base, annular member, screening box and guide rail 1 of the present invention.

[0024] Figure 5 It is a schematic diagram of the cooperation between the screening box and the discharge piece of the present invention.

[0025] Figure 6 It is a cross-sectional view of the screening box of the present invention.

[0026] Figure 7 It is a structural schematic diagram of the guide plate in the screening box of the present invention.

[0027] Figure 8 Schematic diagram of the cooperation between the baffle, locking rod and unlocking member of the present invention.

[0028] Figure 9 It is a structural schematic diagram of the guide rail 1 and the matching block of the present invention.

[0029] Figure 10 It is a cross-sectional view of the discharge piece of the present invention.

[0030] Figure 11 It is a structural schematic diagram of the retaining ring of the present invention.

[0031] Reference numerals: 10, housing; 101, opening; 11, automatic unloading bin; 111, guide pipe; 12, motor; 21, base; 211, mounting slot; 22, telescopic member; 221, elastic member 1; 222, elastic member 2; 30, screening box; 300, roller; 301, filter chamber 1; 302, filter chamber 2; 303, filter chamber 3; 304, feed pipe; 31, filter plate 1; 32, filter plate 2; 33, discharge pipe; 34, baffle; 341, elastic member 3; 342, guide rod 2; 343, jack; 35. Guide rod one; 36. Bevel gear; 37. Guide plate; 38. Unlocking member; 381. Elastic member four; 39. Locking rod; 391. Elastic member five; 392. Inclined surface; 41. Ring member; 411. Smooth surface; 42. Bump; 43. Bevel rack; 51. Discharge bin; 511. Retaining ring; 512. Connecting port; 52. Feeding pipe; 53. Connecting rod; 54. Connecting plate; 61. Guide rail one; 611. Guide surface one; 612. Horizontal surface; 613. Guide surface two; 62. Matching block; 70. Flexible tube. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0033] refer to Figure 1-Figure 5 A blood perfusion adsorbent screening device includes a shell 10, a base 21 is coaxially rotated in the shell 10, a motor 12 for driving the base 21 to rotate is installed at the upper end of the shell 10, and a plurality of telescopic members 22 are rotated at intervals along the circumference of the base 21. In this embodiment, there are four telescopic members 22, and an elastic member 221 is provided in the telescopic member 22. The elastic member 221 is a spring. A mounting groove 211 for mounting the telescopic member 22 is opened on the base 21. When the telescopic member 22 rotates until it stops at the lower end surface of the mounting groove 211, the telescopic member 22 is in a horizontal state.

[0034] refer to Figures 1-6 as well as Figure 9When the roller 300 stops contacting the horizontal surface 612, the screening box 30 is in a state of swinging upward to a fixed tilt angle.

[0035] A driving member 1 is coaxially fixed in the shell 10, and a driving member 2 is provided at one end of the screening box 30 away from the base 21 to cooperate with the driving member 1. The driving member 2 includes a guide rod 1 35 fixedly connected to the screening box 30 and a bevel gear 36 coaxially fixed on the guide rod 1 35. The driving member 1 includes an annular member 41 fixedly connected to the shell 10, and a plurality of guide block groups cooperating with the guide rod 1 35 and a rack group cooperating with the bevel gear 36 are alternately provided on the inner ring side of the annular member 41 along its circumference. The inner ring side of the annular member 41 has a smooth surface 411 cooperating with the guide rod 1 35, and the guide rail 1 61 is located below the smooth surface 411. The guide block group includes a plurality of protrusions 42 arranged at intervals, and the rack group includes a plurality of arc-shaped bevel racks 43 alternately arranged up and down along the circumference of the annular member 41. The screening box 30 and the guide rail 1 61 are disengaged from the stop. When the bevel gear 36 is located between the upper and lower bevel racks 43, and during the rotation of the base 21, when the guide rod 35 moves to the position corresponding to the smooth surface 411, the guide rod 35 does not stop with the smooth surface 411, and when the guide rod 35 passes the guide block group, multiple protrusions 42 can reciprocate to stop the guide rod 35, so that the elastic member 221 is reciprocatingly squeezed, thereby causing the telescopic member 22 to reciprocate and retract, so that the screening box 30 can move reciprocatingly along the telescopic direction of the telescopic member 22 to assist in screening the adsorbent in the screening box 30. When the guide rod 35 passes the rack group, the bevel gear 36 can alternately engage with the bevel racks 43 located at the upper and lower ends of the bevel gear 36. Therefore, under the action of the elastic member 222, the screening box 30 can reciprocate around the telescopic member 22 to assist in screening the adsorbent in the screening box 30.

[0036] refer to Figure 5-Figure 7 、 Figure 10 as well as Figure 11, filter plate 1 31 and filter plate 2 32 are arranged in sequence from top to bottom in the screening box 30, the filter pores of filter plate 1 31 are larger than the filter pores of filter plate 2 32, and filter plate 1 31 and filter plate 2 32 divide the screening box 30 into filter chamber 1 301, filter chamber 2 302 and filter chamber 3 303 from top to bottom, and the bottoms of filter chamber 1 301, filter chamber 2 302 and filter chamber 3 303 near the base 21 are respectively provided with connected discharge pipes 33, and the ends of filter chamber 1 301, filter chamber 2 302 and filter chamber 3 303 near the base 21 are respectively provided with two guide plates 37 for guiding the screened adsorbent to the corresponding discharge pipe 33. Taking the two guide plates 37 in filter chamber 1 301 as an example, the two guide plates 37 are symmetrically arranged about the discharge pipe 33 corresponding to the filter chamber 1 301.

[0037] A discharge member is coaxially fixed in the shell 10, and the discharge member has discharge bins 51 corresponding to filter chamber 1 301, filter chamber 2 302 and filter chamber 3 303 respectively. The three discharge pipes 33 on the screening box 30 are connected to the corresponding discharge bins 51 through flexible tubes 70 respectively. It should be noted that the flexible tube 70 is elastic and can be retracted. The three discharge bins 51 corresponding to filter chamber 1 301, filter chamber 2 302 and filter chamber 3 303 are arranged in sequence from top to bottom.

[0038] The bottoms of the three discharge bins 51 are respectively fixed with discharge pipes 52 that are connected to the interiors of the corresponding discharge bins 51. The three discharge bins 51 are respectively coaxially rotated with retaining rings 511. The retaining rings 511 have connection ports 512 that are the same in number as the screening boxes 30. Taking one of the discharge pipes 33 and the corresponding connection port 512 as an example, the two ends of the flexible tube 70 are respectively connected to the connection port 512 and the discharge pipe 33. It should be noted that the three retaining rings 511 are fixedly connected by a connecting rod 53, and the connecting rod 53 is fixedly connected to the base 21 through a connecting plate 54.

[0039] When the screening box 30 is in a state of swinging upward to a fixed tilt angle, the adsorbent particles in the filter chamber 1 301, the filter chamber 2 302 and the filter chamber 3 303 can enter the corresponding discharge bin 51 through the corresponding discharge pipe 33 and the flexible pipe 70, and then be discharged through the discharge pipe 52 at the bottom of the corresponding discharge bin 51.

[0040] refer to Figures 1-4An automatic unloading bin 11 is provided on the shell 10. The automatic unloading bin 11 adopts an existing device that can control automatic unloading. The top of the screening box 30 is provided with a feed pipe 304 in the shape of an arc groove. When the top of the screening box 30 is in a horizontal state, the top of the feed pipe 304 is lower than the inner top wall of the shell 10. The top of the shell 10 has an opening 101 that cooperates with the feed pipe 304. The lower end of the automatic unloading bin 11 has a guide pipe 111 that cooperates with the feed pipe 304. When the top of the screening box 30 is in a horizontal state, the guide pipe 111 is located above the feed pipe 304, and the diameter of the guide pipe 111 is smaller than the width of the feed pipe 304.

[0041] refer to Figure 8 and Figure 9 , a baffle 34 cooperating with the discharge pipe 33 is slidably provided on the screening box 30 through an elastic member three 341, the elastic member three 341 adopts a spring, and a matching block 62 for enabling the baffle 34 to open the discharge pipe 33 is provided on the guide rail 1 61, an unlocking member 38 is slidably provided on the screening box 30 through an elastic member four 381, and a locking rod 39 is slidably provided through an elastic member five 391, the elastic member four 381 and the elastic member five 391 adopt springs respectively, a socket 343 cooperating with the locking rod 39 is provided on the baffle 34, and a slope 392 cooperating with the unlocking member 38 is provided on the locking rod 39, and a guide rod 2 342 is provided at the lower end of the baffle 34. In the initial state, the locking rod 39 is inserted into the socket 343 and locks the baffle 34, and the baffle 34 completely blocks the discharge pipe 33. The elastic member three 341 is compressed, and when the roller 300 stops against the horizontal plane 612, the unlocking member 38 stops against the top wall of the shell 10, so that the unlocking member 38 moves downward and squeezes the inclined surface 392 to disengage the locking rod 39 from the socket 343, thereby allowing the locking rod 39 to unlock the baffle 34, and then the elastic member three 341 drives the baffle 34 to move downward to fully open the discharge pipe 33, and the elastic member five 391 is compressed; then when the guide rod two 342 stops against the matching block 62, the roller 300 and the guide rail one 61 are disengaged, and the matching block 62 gradually pushes the guide rod two 342 upward to move the baffle 34 upward and completely block the discharge pipe 33, and then under the action of the elastic member five 391, the locking rod 39 moves toward the baffle 34 and inserts into the socket 343 to lock the baffle 34 again.

[0042] Specific working principle: Reference Figures 1-11 , add the adsorbent particles to be screened into the automatic unloading bin 11, set the time interval for the automatic unloading bin 11 to unload through the guide tube 111, and control the motor 12 to make the base 21 rotate counterclockwise (looking from top to bottom along the axial direction of the shell 10) at a uniform speed.

[0043] Taking one of the screening boxes 30 as an example, during the rotation of the base 21, when the roller 300 passes the guide surface 1 611 and moves to the horizontal surface 612, the screening box 30 is in a state of swinging upward to a fixed tilt angle. At this time, the baffle 34 moves downward to fully open the discharge pipe 33, and the screened adsorbent particles in the filter chamber 1 301, the filter chamber 2 302 and the filter chamber 303 can enter the corresponding discharge bin 51 through the corresponding discharge pipe 33, and then be discharged from the corresponding discharge pipe 52; then, when the roller 300 moves from the horizontal surface 612 to the guide surface 2 613 and leaves the guide surface 2 613, the upper end surface of the screening box 30 returns to a horizontal state, the guide rod 1 35 faces the smooth surface 411, and then the matching block 62 gradually pushes the guide rod 2 342 upward to move the baffle 34 upward and completely block the discharge pipe 33, the locking rod 39 locks the baffle 34, and then the guide rod 2 342 is out of contact with the matching block 62.

[0044] As the base 21 continues to rotate, the feed pipe 304 moves to the bottom of the guide pipe 111, and the guide pipe 111 corresponds to the opening of the feed pipe 304. The automatic unloading bin 11 will discharge a certain amount of adsorbent particles downward. As the base 21 continues to rotate, when the guide pipe 111 is about to disengage from the opening of the feed pipe 304, the automatic unloading bin 11 stops discharging downward. At this time, a certain amount of adsorbent particles is smoothly added to the filter cavity 1 301 of the screening box 30 through the feed pipe 304. As the base 21 continues to rotate, when the guide rod 1 35 passes through the guide block group, the multiple protrusions 42 can reciprocate to stop the guide rod 1 35, so that The elastic member 221 is squeezed back and forth, causing the telescopic member 22 to reciprocate and retract, thereby enabling the screening box 30 to reciprocate along the telescopic direction of the telescopic member 22 to assist in screening the adsorbent in the screening box 30. When the guide rod 1 35 passes through the rack assembly, the bevel gear 36 can alternately engage with the bevel racks 43 located at the upper and lower ends of the bevel gear 36. Therefore, under the action of the elastic member 222, the screening box 30 can reciprocate around the telescopic member 22 to assist in screening the adsorbent in the screening box 30, so that the adsorbent particles are efficiently screened and distributed in the filter chamber 1 301, the filter chamber 2 302 and the filter chamber 3 303.

[0045] When the roller 300 passes the guide surface 1 611 again and moves to the horizontal surface 612, the screening box 30 is in a state of swinging upward to a fixed tilt angle. At this time, the baffle 34 moves downward to fully open the discharge pipe 33, and the screened adsorbent particles in the filter chamber 1 301, the filter chamber 2 302 and the filter chamber 303 can enter the corresponding discharge bin 51 through the corresponding discharge pipe 33, and then be discharged from the corresponding discharge pipe 52; then, when the roller 300 moves from the horizontal plane 612 to the guide surface 2 613 and leaves the guide surface 2 613, the upper end surface of the screening box 30 returns to a horizontal state, the guide rod 1 35 faces the smooth surface 411, and then the matching block 62 gradually pushes the guide rod 2 342 upward to move the baffle 34 upward and completely block the discharge pipe 33, the locking rod 39 locks the baffle 34, and then the guide rod 2 342 disengages from the matching block 62.

[0046] It can be understood that, during the process of the screening box 30 rotating one circle along with the base 21, the adsorbent particles are loaded, screened and discharged, which is efficient and convenient to operate and can achieve continuous screening.

[0047] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A blood perfusion adsorbent screening device, comprising a housing, characterized in that: A base is coaxially rotatable in the shell, and a plurality of telescopic members are rotatably provided on the base at intervals along its circumference. A screening box is rotatably provided at one end of the telescopic member away from the base via an elastic member. A guide rail for driving the screening box to swing upward is provided in the shell, a driving member is coaxially provided in the shell, and a driving member second cooperating with the driving member first is provided at one end of the screening box away from the base. The screening box is provided with filter plates 1 and 2, which divide the screening box into filter chamber 1, filter chamber 2 and filter chamber 3 from top to bottom. Discharge pipes are respectively provided at the bottom of one end of the filter chamber 1, filter chamber 2 and filter chamber 3 close to the base. A discharge member is coaxially provided in the shell, and the discharge member has discharge bins corresponding to the filter chamber 1, filter chamber 2 and filter chamber 3 respectively. The three discharge pipes are connected to the corresponding discharge bins through flexible pipes. A baffle that cooperates with the discharge pipe is provided on the screening box through the sliding of elastic member 3, and a matching block for enabling the baffle to open the discharge pipe is provided on the guide rail 1; An automatic unloading bin is provided on the shell. When the base rotates, the driving member 1 can drive the driving member 2 to make the telescopic member reciprocate and retract, and the screening box reciprocate relative to the telescopic member. When the upper end of the screening box is horizontal, the automatic unloading bin can add the adsorbent into the screening box.

2. The blood perfusion adsorbent screening device according to claim 1, characterized in that: The second driving member includes a guide rod 1 fixedly connected to the screening box and a bevel gear coaxially arranged on the guide rod 1. The driving member 1 includes an annular member fixedly connected to the shell. The inner ring side of the annular member is alternately provided with a plurality of guide block groups cooperating with the guide rod 1 and a rack group cooperating with the bevel gear along its circumference. The inner ring side of the annular member has a smooth surface cooperating with the guide rod 1.

3. The blood perfusion adsorbent screening device according to claim 2, characterized in that: The guide block group includes a plurality of protrusions arranged at intervals, and the rack group includes a plurality of arc-shaped tapered racks alternately arranged up and down along the circumference of the annular member.

4. The blood perfusion adsorbent screening device according to claim 3, characterized in that: When the screening box and the guide rail are separated from the stop, the bevel gear is located between the upper and lower bevel racks.

5. The blood perfusion adsorbent screening device according to claim 1, characterized in that: An elastic member is provided inside the telescopic member, and a mounting groove for mounting the telescopic member is provided on the base. When the telescopic member rotates to abut against the lower end surface of the mounting groove, the telescopic member is in a horizontal state.

6. The blood perfusion adsorbent screening device according to claim 1, characterized in that: The filter chamber 1, the filter chamber 2 and the filter chamber 3 are respectively provided with a guide plate at one end close to the base for guiding the screened adsorbent into the corresponding discharge pipe.

7. The blood perfusion adsorbent screening device according to claim 1, characterized in that: The filter plates 1 and 2 in the screening box are arranged in sequence from top to bottom, the filter holes of the filter plate 1 are larger than the filter holes of the filter plate 2, the top of the screening box is provided with a feed pipe in the shape of an arc groove, the top of the shell is provided with an opening that cooperates with the feed pipe, and the lower end of the automatic unloading bin is provided with a material guide pipe that cooperates with the feed pipe.

8. The blood perfusion adsorbent screening device according to claim 1, characterized in that: The bottoms of the three discharge bins are respectively fixed with discharge pipes connected to the interior of the corresponding discharge bins. The three discharge bins are respectively provided with retaining rings that rotate coaxially. The retaining rings have connection ports that are the same number as the screening boxes. The two ends of the flexible tube are respectively connected to the connection ports and the discharge pipes, and the retaining rings are fixedly connected to the base.

9. The blood perfusion adsorbent screening device according to claim 2, characterized in that: The bottom of the screening box is provided with a roller, and the guide rail 1 is provided with a guide surface 1, a horizontal surface and a guide surface 2 that cooperate with the roller. When the roller and the horizontal surface stop, the screening box is in an upward swinging state, and the guide rail 1 is located below the smooth surface.

10. The blood perfusion adsorbent screening device according to claim 9, characterized in that: The screening box is provided with an unlocking piece that slides through the elastic piece four, and a locking rod that slides through the elastic piece five. The lower end of the baffle is provided with a guide rod two. When the roller stops with the horizontal plane, the unlocking piece stops with the top wall of the shell and drives the locking rod to disengage the baffle from locking. The baffle moves down to fully open the discharge pipe. Subsequently, during the process of the guide rod two stopping with the matching block, the roller and the guide rail one disengage from the stopping, the baffle moves up and completely blocks the discharge pipe, and the locking rod locks the baffle.

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