Blood perfusion adsorbent screening device

Abstract

The invention relates to the technical field of screening, and particularly discloses a blood perfusion adsorbent screening device which is characterized in that a plurality of telescopic parts are rotationally arranged on a base, a screening box is rotationally arranged on the telescopic parts, a first guide rail used for driving the screening box to swing upwards is arranged in a shell, and a first driving part is coaxially arranged in the shell; a second driving piece matched with the first driving piece is arranged at the end, away from the base, of the screening box. A first filter plate and a second filter plate are arranged in the screening box and divide the screening box into a first filter cavity, a second filter cavity and a third filter cavity from top to bottom, discharging pipes are arranged at the bottoms of the ends, close to the base, of the first filter cavity, the second filter cavity and the third filter cavity correspondingly, and a discharging piece is coaxially arranged in the shell. The discharging piece is provided with discharging bins corresponding to the first filter cavity, the second filter cavity and the third filter cavity respectively, and the three discharging pipes are communicated with the corresponding discharging bins through flexible pipes respectively. And a baffle matched with the discharging pipe is slidably arranged on the screening box through a third elastic part. According to the adsorbent screening device, efficient and continuous screening of adsorbents is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of screening, and particularly relates to a screening device for hemoperfusion adsorbents. Background Art

[0002] A hemoperfusion cartridge is a medical device mainly used for blood purification treatment. Through extracorporeal circulation, it uses the adsorption effect to remove toxic substances in the blood. It is a way of blood purification and is mainly applied to the adsorption of acute and chronic drug poisoning, middle molecule toxins in uremia, and pathogenic factors in the fields of liver diseases and immunity. Its main application modes include a separate hemoperfusion mode, a hemodialysis combined with hemoperfusion mode, and a plasma separation adsorption mode. The adsorbents in the hemoperfusion cartridge usually adopt activated carbon or resin. The particle sizes of the hemoperfusion adsorbents used under different requirements are different. For example, for macromolecular substances, adsorbing materials with larger pore diameters and higher specific surface areas are often used. For drug poisoning or metabolic wastes, smaller particle size adsorbents are required. Therefore, it is necessary to screen the produced adsorbent particles to meet the usage requirements.

[0003] The Chinese patent with the publication number CN214865310U discloses a sorting device for hemoperfusion adsorbents, including a discharging system, a sorting system, and a control system. The discharging system includes a bin support. A support plate is provided at the top of the bin support. Symmetrically arranged support rods are provided on both sides of the support plate. The top of the support rod is connected to a support ring. A storage bin is provided inside the support ring. The top of the storage bin is provided with a feed inlet, and the bottom of the storage bin is provided with a discharge outlet. A blanking plate is provided directly below the discharge outlet. The bottom of the blanking plate is connected to a vibration motor fixed on the support plate. The opening direction of the blanking plate is perpendicular to the connecting line direction of the two support rods. The sorting system includes a sorting support. The sorting support is an A-shaped support. A first travel switch is provided on one side of the sorting support close to the bin support, and a second travel switch is provided on the other side of the sorting support. 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 at the top of the sorting support. The middle of the sorting plate is connected to the rotating motor. One 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 other end of the sorting plate away from the blanking plate is a second port. An unqualified bin corresponding to the first port is provided on one side of the sorting support, and a qualified bin corresponding to the second port is provided on the other side of the sorting support.

[0004] In the implementation process of the above technical solution, the adsorbent to be sorted is placed in the storage bin. The adsorbent falls onto the blanking plate through the discharge port at the bottom of the storage bin. The control system controls the rotation motor to start to drive the sorting plate to rotate. When the bottom of the sorting plate touches the second travel switch, the control system controls the rotation motor to stop running and the vibration motor to start. The vibration motor drives the discharge plate to vibrate, and the adsorbent is gradually vibrated to the opening of the blanking plate and falls onto the sorting plate. At this time, the qualified uniform circular adsorbent particles can overcome the friction force and roll down along the sorting plate into the qualified bin, and the unqualified broken particles or half particles will stay on the sorting plate because the friction force between them and the sorting plate is greater than the gravity. After the vibration motor works for a period of time, the control system controls the vibration motor to stop running and at the same time controls the rotation motor to rotate in the reverse direction. The rotation motor drives the sorting plate to rotate in the reverse direction. When the bottom of the sorting plate touches the first travel switch, the control system controls the rotation motor to stop rotating. At this time, the inclination angle of the sorting plate is large, and the unqualified adsorbent particles staying on the sorting plate can fall into the unqualified bin along the sorting plate because their gravity is greater than the friction force. After all the unqualified adsorbents fall into the unqualified bin, the control system controls the rotation motor to drive the sorting plate to continue to reverse, repeating the above steps until there is no adsorbent on the blanking plate. However, in this process, it is necessary to repeatedly rotate the sorting plate multiple times to screen the adsorbent particles into the corresponding bins, the operation efficiency is low, and the overall equipment is relatively scattered, which is not convenient for making good use of the space. Summary of the Invention

[0005] The present invention provides a screening device for hemoperfusion adsorbents, aiming to solve the problem that it is difficult to efficiently and continuously screen adsorbents in the related art.

[0006] A screening device for hemoperfusion adsorbents includes a housing. A base is coaxially and rotatably arranged in the housing. Along the circumferential direction of the base, a plurality of telescopic members are rotatably arranged at intervals. One end of the telescopic member away from the base is rotatably provided with a screening box through an elastic member two. A guide rail one for driving the screening box to swing upward is arranged in the housing. A driving member one is coaxially arranged in the housing. One end of the screening box away from the base is provided with a driving member two for cooperating with the driving member one. A filter plate one and a filter plate two are arranged in the screening box. The filter plate one and the filter plate two divide the screening box into a filter chamber one, a filter chamber two and a filter chamber three from top to bottom. Discharge pipes are respectively arranged at the bottoms of the filter chamber one, the filter chamber two and the filter chamber three close to the base. A discharging member is coaxially arranged in the housing. The discharging member has discharging bins corresponding to the filter chamber one, the filter chamber two and the filter chamber three respectively. The three discharge pipes are respectively communicated with the corresponding discharging bins through flexible pipes. A baffle for cooperating with the discharge pipe is slidably arranged on the screening box through an elastic member three. A matching block for opening the discharge pipe by the baffle is arranged on the guide rail one. An automatic blanking bin is arranged on the housing. When the base rotates, the driving member one can drive the driving member two, so that the telescopic members reciprocally expand and contract, and the screening box reciprocally deflects relative to the telescopic members. When the upper end of the screening box is horizontal, the automatic blanking bin can add the adsorbent into the screening box.

[0007] The beneficial effects of the present invention are as follows: during the rotation of the base, the automatic feeding bin can quantitatively add the adsorbent particles to be screened into the screening box. Subsequently, under the action of the first driving member, the telescopic member can reciprocate telescopically, and the screening box can reciprocally deflect relative to the telescopic member, so that the adsorbent particles in the screening box can be well screened; as the base rotates, when the baffle abuts against the engaging block, the baffle can open the discharge pipe, and at this time, the screened adsorbent particles can be discharged through the corresponding discharge pipe for convenient classified storage, thereby realizing the efficient screening of the adsorbent particles.

[0008] Preferably, the second driving member includes a first guide rod fixedly connected to the screening box and a bevel gear coaxially arranged on the first guide rod. The first driving member includes an annular member fixedly connected to the housing. Along the circumferential direction of the inner ring side of the annular member, a plurality of guide block groups cooperating with the first guide rod and a rack group cooperating with the bevel gear are alternately arranged in sequence. The inner ring side of the annular member has a smooth surface cooperating with the first guide rod; when the first guide rod moves to a position corresponding to the smooth surface, the first guide rod does not abut against the smooth surface. During this process, the screening box can discharge materials when it contacts the first guide rail. After the screening box is separated from the engaging block, the automatic feeding 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 circumferential direction of the annular member; when the first guide rod passes through the guide block group, the plurality of protrusions can reciprocally abut against the first guide rod, so that the first elastic member is reciprocally extruded, and then the telescopic member reciprocates telescopically, so that the screening box can reciprocally move along the telescopic direction of the telescopic member to assist in screening the adsorbent in the screening box. When the first guide rod passes through the rack group, the bevel gear can alternately mesh with the bevel racks located at the upper and lower ends of the bevel gear. Therefore, under the action of the second elastic member, the screening box can reciprocally deflect around the telescopic member to assist in screening the adsorbent in the screening box.

[0010] Preferably, when the screening box is separated from abutting against the first 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 respectively mesh with the upper and lower bevel racks, thereby realizing the screening of the adsorbent in the screening box.

[0011] Preferably, a first elastic member is arranged in the telescopic member, and an installation groove for installing the telescopic member is formed on the base. When the telescopic member rotates to abut against the lower end surface of the installation groove, the telescopic member is in a horizontal state.

[0012] Preferably, guide plates for guiding the screened adsorbent into the corresponding discharge pipes are respectively arranged at one ends of the first filter chamber, the second filter chamber, and the third filter chamber close to the base. The arrangement of the guide plates facilitates the complete discharge of the adsorbent particles in the first filter chamber, the second filter chamber, and the third filter chamber during the discharging process of the screening box.

[0013] Preferably, the first filter plate and the second filter plate in the screening box are arranged in sequence from top to bottom. The filter holes of the first filter plate are larger than those of the second filter plate. The top end of the screening box has a feeding pipe in the shape of an arc notch, the top of the housing has an opening matching the feeding pipe, and the lower end of the automatic feeding bin has a guiding pipe matching the feeding pipe.

[0014] Preferably, the bottoms of the three discharging bins are respectively fixedly provided with discharging pipes communicated with the interiors of the corresponding discharging bins. Rotating coaxial with the three discharging bins are retaining rings, and the retaining rings are provided with connecting ports having the same number as that of the screening boxes. The two ends of the flexible pipes are respectively connected with the connecting ports and the discharging pipes, and the retaining rings are fixedly connected with the base; thus, the retaining rings can rotate synchronously with the base, and further, it is convenient for the connecting ports on the retaining rings to be always connected with the corresponding discharging pipes on the screening box through the flexible pipes, and further, it is convenient for the screened adsorbent particles in the first filter cavity, the second filter cavity and the third filter cavity to be discharged.

[0015] Preferably, the bottom of the screening box is provided with rollers. The first guide rail has a first guiding surface, a horizontal surface and a second guiding surface matching the rollers. When the rollers abut against the horizontal surface, the screening box is in an upward swinging state, and the first guide rail is located below the smooth surface; at this time, the screened adsorbent particles in the first filter cavity, the second filter cavity and the third filter cavity can be smoothly discharged through the discharging pipes.

[0016] Preferably, an unlocking member is slidably arranged on the screening box through an elastic member four, and a locking rod is slidably arranged through an elastic member five. The lower end of the baffle is provided with a second guide rod. When the rollers abut against the horizontal surface, the unlocking member abuts against the top wall of the housing and drives the locking rod to disengage from locking the baffle. The baffle moves downward to completely open the discharging pipe. Subsequently, during the process that the second guide rod abuts against the matching block, the rollers disengage from abutting against the first guide rail, the baffle moves upward and completely blocks the discharging pipe, and the locking rod locks the baffle.

[0017] Adopting the above technical solution, the beneficial effects of the present invention are as follows: 1. During the rotation of the base, when the rollers pass through the first guiding surface and move to the horizontal surface, the screening box is in a state of swinging upward to a fixed inclination angle. At this time, the baffle moves downward to completely open the discharging pipe, and the screened adsorbent particles in the first filter cavity, the second filter cavity and the third filter cavity can enter the corresponding discharging bins through the corresponding discharging pipes and then be discharged from the corresponding discharging pipes; subsequently, when the rollers move from the horizontal surface to the second guiding surface and leave the second guiding surface, the baffle moves upward and completely blocks the discharging pipe. As the base continues to rotate, the automatic feeding bin will discharge a certain amount of adsorbent particles downward, and then the screening box can reciprocally move along the telescopic direction of the telescopic member and can also reciprocally deflect around the telescopic member to assist in screening the adsorbent in the screening box.

[0018] 2. When the roller passes through the guiding surface again and moves onto the horizontal plane, the screening box is in a state of swinging upward to a fixed inclination angle. At this time, the baffle moves downward to fully open the discharge pipe, and the screened adsorbent particles in the first filter chamber, the second filter chamber, and the third filter chamber can enter the corresponding discharge bins through the corresponding discharge pipes, and then are discharged from the corresponding discharge pipes. Subsequently, when the roller moves from the horizontal plane to the second guiding surface and leaves the second guiding surface, the upper end surface of the screening box returns to the horizontal state, the first guide rod faces the smooth surface, and then the matching block gradually pushes the second guide rod upward, so that the baffle moves upward and fully blocks the discharge pipe, and the locking rod locks the baffle. Subsequently, the second guide rod disengages from the matching block. Therefore, during the process of the screening box rotating one week with the base, the feeding, screening, and discharging of the adsorbent particles are realized, the operation is efficient and convenient, and continuous screening can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a partial cross-sectional view of the housing of the present invention.

[0021] Figure 3 It is a schematic diagram of the structure inside the housing of the present invention.

[0022] Figure 4 It is a schematic diagram of the cooperation between the base, the annular part, the screening box, and the first guide rail of the present invention.

[0023] Figure 5 It is a schematic diagram of the cooperation between the screening box and the discharging part of the present invention.

[0024] Figure 6 It is a cross-sectional view of the screening box of the present invention.

[0025] Figure 7 It is a schematic diagram of the structure of the guide plate inside the screening box of the present invention.

[0026] Figure 8 It is a schematic diagram of the cooperation between the baffle, the locking rod, and the unlocking part of the present invention.

[0027] Figure 9 It is a schematic diagram of the structure of the first guide rail and the matching block of the present invention.

[0028] Figure 10 It is a cross-sectional view of the discharging part of the present invention.

[0029] Figure 11 It is a schematic diagram of the structure of the retaining ring of the present invention.

[0030] Reference numerals: 10, housing; 101, opening; 11, automatic feeding bin; 111, material guiding pipe; 12, motor; 21, base; 211, installation groove; 22, telescopic member; 221, first elastic member; 222, second elastic member; 30, screening box; 300, roller; 301, first filter chamber; 302, second filter chamber; 303, third filter chamber; 304, feed pipe; 31, first filter plate; 32, second filter plate; 33, discharge pipe; 34, baffle; 341, third elastic member; 342, second guide rod; 343, jack; 35, first guide rod; 36, bevel gear; 37, guide plate; 38, unlocking member; 381, fourth elastic member; 39, locking rod; 391, fifth elastic member; 392, inclined surface; 41, annular member; 411, smooth surface; 42, convex block; 43, bevel rack; 51, discharge bin; 511, retaining ring; 512, connection port; 52, blanking pipe; 53, connecting rod; 54, connecting plate; 61, first guide rail; 611, first guiding surface; 612, horizontal plane; 613, second guiding surface; 62, mating block; 70, flexible pipe. Detailed implementation manners

[0031] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as a limitation to the present invention.

[0032] Refer to Figures 1 - 5 , a blood perfusion adsorbent screening device, including a housing 10, a base 21 is coaxially and rotatably arranged in the housing 10, a motor 12 for driving the base 21 to rotate is installed at the upper end of the housing 10, and a plurality of telescopic members 22 are rotatably arranged at intervals along the circumference of the base 21. In this embodiment, there are four telescopic members 22, a first elastic member 221 is arranged in the telescopic member 22, the first elastic member 221 is a spring, an installation groove 211 for installing the telescopic member 22 is formed on the base 21, and when the telescopic member 22 rotates to abut against the lower end surface of the installation groove 211, the telescopic member 22 is in a horizontal state.

[0033] Refer to Figures 1 - 6 And Figure 9, one end of the telescopic member 22 away from the base 21 is rotatably provided with a screening box 30 through an elastic member two 222. The elastic member two 222 is a torsion spring. In the initial state, the upper end surface of the screening box 30 is in a horizontal state. A guide rail one 61 for driving the screening box 30 to swing upward is fixedly arranged in the housing 10. The guide rail one 61 is arc-shaped and coaxial with the housing 10. A roller 300 is installed at the bottom of the screening box 30. The guide rail one 61 has a guide surface one 611, a horizontal surface 612 and a guide surface two 613 that cooperate with the roller 300. During the rotation of the base 21, the roller 300 can sequentially pass through the guide surface one 611, the horizontal surface 612 and the guide surface two 613. During this process, the telescopic member 22 will deflect upward from the horizontal state and then maintain a fixed inclination angle, and then deflect downward and reset to the horizontal state. When the roller 300 abuts against the horizontal surface 612, the screening box 30 is in a state of swinging upward to a fixed inclination angle.

[0034] A driving member one is fixedly arranged coaxially in the housing 10. One end of the screening box 30 away from the base 21 is provided with a driving member two that cooperates with the driving member one. The driving member two includes a guide rod one 35 fixedly connected to the screening box 30 and a bevel gear 36 coaxially fixed on the guide rod one 35. The driving member one includes an annular member 41 fixedly connected to the housing 10. Along the circumferential direction of the inner ring side of the annular member 41, a plurality of guide block groups that cooperate with the guide rod one 35 and a rack group that cooperate with the bevel gear 36 are alternately arranged in sequence. The inner ring side of the annular member 41 has a smooth surface 411 that cooperates with the guide rod one 35. The guide rail one 61 is located below the smooth surface 411. The guide block group includes a plurality of convex blocks 42 arranged at intervals. The rack group includes a plurality of arc-shaped bevel racks 43 arranged alternately up and down along the circumferential direction of the annular member 41. When the screening box 30 is disengaged from the abutment with the guide rail one 61, the bevel gear 36 is located between the upper and lower two bevel racks 43. During the rotation of the base 21, when the guide rod one 35 moves to the position corresponding to the smooth surface 411, the guide rod one 35 does not abut against the smooth surface 411. When the guide rod one 35 passes through the guide block group, the plurality of convex blocks 42 can reciprocally abut against the guide rod one 35, so that the elastic member one 221 is reciprocally extruded, thereby enabling the telescopic member 22 to reciprocally expand and contract, so that the screening box 30 can reciprocally move along the expansion and contraction direction of the telescopic member 22 to assist in screening the adsorbent in the screening box 30. When the guide rod one 35 passes through the rack group, the bevel gear 36 can alternately mesh 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 two 222, the screening box 30 can reciprocally deflect around the telescopic member 22 to assist in screening the adsorbent in the screening box 30.

[0035] Reference Figures 5 - 7 , Figure 10 and Figure 11, inside the screening box 30, a first filter plate 31 and a second filter plate 32 are successively arranged from top to bottom. The filter holes of the first filter plate 31 are larger than those of the second filter plate 32. The first filter plate 31 and the second filter plate 32 divide the screening box 30 into a first filter chamber 301, a second filter chamber 302, and a third filter chamber 303 from top to bottom. At the bottom of one end of the first filter chamber 301, the second filter chamber 302, and the third filter chamber 303 close to the base 21, discharge pipes 33 are respectively provided and are connected. At one end of the first filter chamber 301, the second filter chamber 302, and the third filter chamber 303 close to the base 21, two guide plates 37 are respectively provided for guiding the screened adsorbent into the corresponding discharge pipes 33. Taking the two guide plates 37 in the first filter chamber 301 as an example, the two guide plates 37 are symmetrically arranged with respect to the discharge pipe 33 corresponding to the first filter chamber 301.

[0036] Inside the housing 10, a discharge member is coaxially fixed. The discharge member has discharge bins 51 corresponding to the first filter chamber 301, the second filter chamber 302, and the third filter chamber 303 respectively. The three discharge pipes 33 on the screening box 30 are respectively connected to the corresponding discharge bins 51 through flexible pipes 70. It should be noted that the flexible pipes 70 are elastic and can be stretched. The three discharge bins 51 corresponding to the first filter chamber 301, the second filter chamber 302, and the third filter chamber 303 are arranged successively from top to bottom.

[0037] At the bottom of the three discharge bins 51, discharge pipes 52 communicating with the inside of the corresponding discharge bins 51 are respectively fixed. On the three discharge bins 51, retaining rings 511 are coaxially rotatably provided. The retaining rings 511 have connection ports 512 with the same number as the screening boxes 30. Taking one of the discharge pipes 33 and its corresponding connection port 512 as an example, the two ends of the flexible pipe 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 through a connecting rod 53, and the connecting rod 53 is fixedly connected to the base 21 through a connecting plate 54.

[0038] When the screening box 30 is in a state of swinging upward to a fixed inclination angle, the adsorbent particles in the first filter chamber 301, the second filter chamber 302, and the third filter chamber 303 can enter the corresponding discharge bins 51 through the corresponding discharge pipes 33 and flexible pipes 70, and then are discharged through the discharge pipes 52 at the bottom of the corresponding discharge bins 51.

[0039] Reference Figures 1 - 4, an automatic feeding bin 11 is provided on the housing 10. The automatic feeding bin 11 adopts existing equipment capable of controlling automatic feeding. The top end of the screening box 30 has a feeding pipe 304 in the shape of an arc-shaped notch. When the top end of the screening box 30 is in a horizontal state, the top end of the feeding pipe 304 is lower than the inner top wall of the housing 10. The top of the housing 10 has an opening 101 that cooperates with the feeding pipe 304. The lower end of the automatic feeding bin 11 has a guiding pipe 111 that cooperates with the feeding pipe 304. When the top end of the screening box 30 is in a horizontal state, the guiding pipe 111 is located above the feeding pipe 304, and the diameter of the guiding pipe 111 is smaller than the width of the feeding pipe 304.

[0040] Reference Figure 8 and Figure 9 , a baffle 34 that cooperates 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. A mating block 62 for opening the discharge pipe 33 by the baffle 34 is provided on the guide rail one 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 respectively adopt springs. A jack 343 that cooperates with the locking rod 39 is opened on the baffle 34. The locking rod 39 has an inclined surface 392 that cooperates with the unlocking member 38. The lower end of the baffle 34 has a guide rod two 342. In the initial state, the locking rod 39 is inserted into the jack 343 and locks the baffle 34. The baffle 34 completely blocks the discharge pipe 33, and the elastic member three 341 is compressed. When the roller 300 abuts against the horizontal plane 612, the unlocking member 38 abuts against the top wall of the housing 10. Thus, the unlocking member 38 moves downward and presses the inclined surface 392, so that the locking rod 39 disengages from the jack 343, and then the locking rod 39 unlocks the baffle 34. Subsequently, the elastic member three 341 drives the baffle 34 to move downward to completely open the discharge pipe 33, and the elastic member five 391 is compressed; subsequently, when the guide rod two 342 abuts against the mating block 62, the roller 300 disengages from the guide rail one 61. The mating block 62 gradually pushes the guide rod two 342 upward, so that the baffle 34 moves upward and completely blocks the discharge pipe 33. Subsequently, under the action of the elastic member five 391, the locking rod 39 moves toward the baffle 34 and inserts into the jack 343 to lock the baffle 34 again.

[0041] Specific working principle: Reference Figures 1 - 11 , add the adsorbent particles to be screened into the automatic feeding bin 11, set the time interval for the automatic feeding bin 11 to discharge materials through the guiding pipe 111, and control the motor 12 to make the base 21 rotate counterclockwise (viewed from top to bottom along the axial direction of the housing 10) at a constant speed.

[0042] Taking one of the screening boxes 30 as an example, during the rotation of the base 21, when the roller 300 passes through the first guide surface 611 and moves onto the horizontal surface 612, the screening box 30 is in a state of swinging upward to a fixed inclination angle. At this time, the baffle 34 moves downward to fully open the discharge pipe 33. The screened adsorbent particles in the first filter chamber 301, the second filter chamber 302, and the third 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. Subsequently, when the roller 300 moves from the horizontal surface 612 to the second guide surface 613 and leaves the second guide surface 613, the upper end surface of the screening box 30 returns to the horizontal state. The first guide rod 35 is aligned with the smooth surface 411. Subsequently, the matching block 62 gradually pushes the second guide rod 342 upward, so that the baffle 34 moves upward and completely blocks the discharge pipe 33. The locking rod 39 locks the baffle 34, and then the second guide rod 342 disengages from the matching block 62.

[0043] As the base 21 continues to rotate, the feed pipe 304 moves below the guide pipe 111, and the guide pipe 111 corresponds to the opening of the feed pipe 304. The automatic feeding 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 feeding bin 11 stops discharging downward. At this time, a certain amount of adsorbent particles are smoothly added into the first filter chamber 301 of the screening box 30 through the feed pipe 304. As the base 21 continues to rotate, when the first guide rod 35 passes through the guide block group, multiple bumps 42 can reciprocally abut against the first guide rod 35, so that the first elastic member 221 is reciprocally squeezed, and then the telescopic member 22 reciprocally expands and contracts, so that the screening box 30 can reciprocally move along the telescopic direction of the telescopic member 22 to assist in screening the adsorbent in the screening box 30. When the first guide rod 35 passes through the rack group, the bevel gear 36 can alternately mesh with the bevel racks 43 located at the upper and lower ends of the bevel gear 36. Therefore, under the action of the second elastic member 222, the screening box 30 can reciprocally deflect 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 first filter chamber 301, the second filter chamber 302, and the third filter chamber 303.

[0044] When the roller 300 passes through the first guiding surface 611 again and moves onto the horizontal surface 612, the screening box 30 is in a state of swinging upward to a fixed inclination angle. At this time, the baffle 34 moves downward to fully open the discharge pipe 33. The screened adsorbent particles in the first filter cavity 301, the second filter cavity 302, and the third filter cavity 303 can enter the corresponding discharge bin 51 through the corresponding discharge pipe 33, and then be discharged from the corresponding blanking pipe 52. Subsequently, when the roller 300 moves from the horizontal surface 612 to the second guiding surface 613 and leaves the second guiding surface 613, the upper end surface of the screening box 30 returns to the horizontal state. The first guide rod 35 faces the smooth surface 411. Subsequently, the matching block 62 gradually pushes the second guide rod 342 upward, so that the baffle 34 moves upward and completely blocks the discharge pipe 33. The locking rod 39 locks the baffle 34, and then the second guide rod 342 disengages from the matching block 62.

[0045] It can be understood that during the process of the screening box 30 rotating one week with the base 21, the feeding, screening, and discharging of the adsorbent particles are realized, which is efficient and convenient to operate and can realize continuous screening.

[0046] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to 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 and rotatably arranged in the housing. Along its circumference, a plurality of telescopic members are rotatably arranged at intervals on the base. One end of the telescopic member away from the base is rotatably provided with a screening box through an elastic member II. A guide rail I for driving the screening box to swing upward is arranged in the housing. A driving member I is coaxially arranged in the housing. One end of the screening box away from the base is provided with a driving member II that cooperates with the driving member I; A filter plate I and a filter plate II are arranged in the screening box. The filter plate I and the filter plate II divide the screening box into a filter chamber I, a filter chamber II, and a filter chamber III from top to bottom. Discharge pipes are respectively arranged at the bottoms of the filter chamber I, the filter chamber II, and the filter chamber III close to the base. A discharging member is coaxially arranged in the housing. The discharging member has discharging bins corresponding to the filter chamber I, the filter chamber II, and the filter chamber III respectively. The three discharge pipes are respectively communicated with the corresponding discharging bins through flexible pipes; A baffle that cooperates with the discharge pipe is slidably arranged on the screening box through an elastic member III. A matching block for opening the discharge pipe by the baffle is arranged on the guide rail I; An automatic feeding bin is arranged on the housing. When the base rotates, the driving member I can drive the driving member II, so that the telescopic member reciprocally expands and contracts, and the screening box reciprocally deflects relative to the telescopic member. When the upper end of the screening box is horizontal, the automatic feeding bin can add adsorbents into the screening box.

2. The screening device for a hemoperfusion adsorbent according to claim 1, wherein The driving member II includes a guide rod I fixedly connected to the screening box and a bevel gear coaxially arranged on the guide rod I. The driving member I includes an annular member fixedly connected to the housing. Along the inner circumferential side of the annular member, a plurality of guide block groups that cooperate with the guide rod I and a rack group that cooperate with the bevel gear are alternately arranged in sequence along the circumference. The inner circumferential side of the annular member has a smooth surface that cooperates with the guide rod I.

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

4. The screening device for a hemoperfusion adsorbent according to claim 3, wherein, When the screening box is disengaged from the abutment with the guide rail I, the bevel gear is located between the upper and lower two bevel racks.

5. A screening device for a hemoperfusion adsorbent according to claim 1, wherein, An elastic member I is arranged in the telescopic member. An installation groove for installing the telescopic member is opened on the base. When the telescopic member rotates to abut against the lower end surface of the installation groove, the telescopic member is in a horizontal state.

6. The screening device for a hemoperfusion adsorbent according to claim 1, characterized in that Guide plates for guiding the screened adsorbents into the corresponding discharge pipes are respectively arranged at the ends of the filter chamber I, the filter chamber II, and the filter chamber III close to the base.

7. The screening device for a hemoperfusion adsorbent according to claim 1, characterized in that, The filter plate I and the filter plate II in the screening box are arranged in sequence from top to bottom. The filter holes of the filter plate I are larger than those of the filter plate II. The top end of the screening box has a feeding pipe in the shape of an arc-shaped notch. The top of the housing has an opening that cooperates with the feeding pipe. The lower end of the automatic feeding bin has a guide pipe that cooperates with the feeding pipe.

8. A screening device for a hemoperfusion adsorbent according to claim 1, wherein Discharging pipes respectively communicating with the interiors of the corresponding discharging bins are fixedly arranged at the bottoms of the three discharging bins. Rotating rings are coaxially arranged on the three discharging bins respectively. The rotating rings have connection ports with the same number as the screening boxes. The two ends of the flexible pipe are respectively connected to the connection port and the discharge pipe. The rotating ring is fixedly connected to the base.

9. The screening device for a hemoperfusion adsorbent according to claim 2, characterized in that, The bottom of the screening box has rollers. The guide rail I has a guide surface I, a horizontal surface, and a guide surface II that cooperate with the rollers. When the rollers abut against the horizontal surface, the screening box is in a state of swinging upward. The guide rail I is located below the smooth surface.

10. The screening device for a hemoperfusion adsorbent according to claim 9, wherein An unlocking member is slidably provided on the screening box through an elastic member four, and a locking rod is slidably provided through an elastic member five. The lower end of the baffle has a second guide rod. When the roller abuts against the horizontal plane, the unlocking member abuts against the top wall of the housing and drives the locking rod to disengage from locking the baffle. The baffle moves downward to fully open the discharge pipe. Subsequently, during the process when the second guide rod abuts against the mating block, the roller disengages from abutting against the first guide rail. The baffle moves upward and completely blocks the discharge pipe, and the locking rod locks the baffle.

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