Detection specimen pretreatment device

Abstract

The utility model relates to the technical field of test tube storage boxes, and discloses a detection specimen pretreatment device which comprises a box body, a cavity with an upward opening is formed in the box body, a movable placing block is arranged in the cavity, and an installation groove is formed in the upper end face of the placing block in the length direction of the placing block. A plurality of placing holes used for placing test tubes are oppositely formed in the upper end face of the placing block and located on the two sides of the mounting groove, clamping plates used for clamping the test tubes are arranged in the placing holes, a driving assembly is arranged in the mounting groove, and a shaking assembly is arranged on the bottom wall of the cavity. Through the structure, the shaking assembly on the bottom wall of the cavity drives the placing block to reciprocate in the cavity, so that blood in a test tube can be uniformly mixed, the situation that a detector sequentially and manually uniformly mixes the to-be-detected blood in the test tube is avoided, the working efficiency of the detector is improved, and the device is relatively convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of test tube storage boxes, in particular to a test specimen pre-processing device. Background Art

[0002] Blood contains a large amount of substances such as hormones, and the patient's condition can be judged by the hormone content in the body. At present, the method of human blood testing is usually to collect blood first, and then put the collected blood samples into test tubes for storage. The test tubes are generally stored in storage boxes, and then the storage boxes are transported to the blood testing site, and the test tubes in the storage box are taken out to test the blood in the test tubes; however, before the blood test, the blood in the test tubes generally needs to be mixed. Testers usually use manual methods to mix the blood in multiple test tubes, which makes the mixing time-consuming and labor-intensive for the testers and also affects work efficiency.

[0003] For example, a storage box for test tubes disclosed in the patent publication number CN218107743U, when the box is closed, can control the driving assembly to make the clamping assembly automatically clamp the test tube, clamp the test tube to fix it, and prevent the storage box from tilting or overturning when being transported to the gastroenterology laboratory after sampling, resulting in a collision between the test tube and the box cover, causing the top of the test tube to break. Because the test tube contains excrement, saliva or blood samples of gastroenterology patients, it will cause damage to the inside of the box. When the box is opened, the driving assembly can control the driving assembly so that the clamping assembly no longer clamps the test tube; however, in actual use of this storage box for test tubes, when the operator takes the test tube out of the box and tests the blood in the test tube, the tester needs to manually mix the blood to be tested in the test tube in turn, which makes it inconvenient for the tester to perform blood testing and affects the tester's work efficiency on blood. Utility Model Content

[0004] The purpose of the utility model is to provide a test specimen pre-processing device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A specimen pretreatment device comprises a box body, a cavity with an opening upward is provided in the box body, a movable placement block is provided in the cavity, an upper end surface of the placement block is provided with a mounting groove along its length direction, a plurality of placement holes for placing test tubes are relatively provided on the upper end surface of the placement block and located at both sides of the mounting groove, each of the placement holes is provided with a clamping plate for clamping the test tube, a driving assembly is provided in the mounting groove, the driving assembly is used to drive the clamping plate to move so as to clamp the test tube in the placement hole, a shaking assembly is provided on the bottom wall of the cavity, the shaking assembly is used to drive the placement block to reciprocate in the cavity so as to mix the blood in the test tube.

[0007] Preferably, a fixing hole and a concave hole are provided on the side walls opposite to the installation groove and at positions corresponding to the placement hole, a driving rod with one end passing through the fixing hole and extending into the concave hole is provided on the side wall of the clamping plate, a driving block is provided on the driving rod located in the concave hole, a first inclined surface is provided on the driving block, and a rotating groove is provided on the side walls opposite to the installation groove and at one end;

[0008] The driving assembly includes a slidable moving plate arranged in the mounting groove, a notch for the driving block to be inserted into is provided at the moving plate corresponding to the driving block, a second inclined surface matching the first inclined surface is provided in the notch, a threaded rod with one end threaded through the moving plate is provided in the mounting groove, a driving ring for driving the threaded rod to rotate is sleeved on the threaded rod located in the rotating groove, the driving ring rotates to drive the threaded rod to rotate, the threaded rod rotates to drive the moving plate to move, the moving plate moves to drive the second inclined surface to squeeze the first inclined surface, so that the driving block drives the clamping plate to clamp the test tube, a moving part is provided in the fixing hole, and the moving part is used to release the clamping of the clamping plate to the test tube.

[0009] Preferably, a positioning ring for the driving rod to pass through is provided at the opening of the fixing hole, and a collar is sleeved on the driving rod located in the fixing hole;

[0010] The moving part comprises a spring arranged in the fixing hole, and the spring is used for pushing the collar on the driving rod to approach the positioning ring, so that the clamping plate releases the clamping of the test tube.

[0011] Preferably, a slot with two ends opened is provided on the side wall opposite to the placement block along its width direction, a card plate with one end inserted into the corresponding slot is provided on the side wall opposite to the cavity along its width direction, and a driving column is provided on the lower end surface of the placement block;

[0012] The shaking assembly includes a rotatable gear arranged on the bottom wall of the cavity, a swing rod is provided on the side wall of the gear, and a swing groove is provided on the upper end face of the swing rod for the lower end of the driving column to be inserted. The rotation of the gear drives the swing rod to swing, so that the driving column drives the placement block to shake in the cavity, and a rotating part for driving the gear to rotate is provided on the bottom wall of the cavity.

[0013] Preferably, a through groove communicating with the cavity is provided on the side wall of the box along its width direction;

[0014] The rotating member includes a rack arranged in the cavity and meshing with the gear. A push rod with one end extending out of the slot is arranged on the side wall of the rack. The push rod moves to drive the rack to move, thereby realizing the rotation of the gear.

[0015] Preferably, a threaded sleeve is provided on the extended end of the push rod, and an abutment plate is provided on the side wall of the threaded sleeve facing the box body.

[0016] Preferably, a limiting groove is provided on the bottom wall of the cavity along its width direction, and a limiting plate with one end inserted into the limiting groove is provided on the rack.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model drives the placement block to move back and forth in the cavity through the shaking assembly on the bottom wall of the cavity, so that the test tube in the placement hole can be shaken, thereby mixing the blood in the test tube. Compared with the existing ones, this kind of test specimen pretreatment device can avoid the test personnel from mixing the blood to be tested in the test tube in sequence and manually during actual use, thereby improving the work efficiency of the test personnel and being more convenient to use.

[0019] 2. The utility model drives the clamping plate in the placement hole to approach the test tube through the driving component, so that the clamping plate and the side wall of the placement hole can clamp the test tube, thereby avoiding the test tube from colliding with the side wall of the placement hole and causing the test tube to break. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a schematic diagram of the structure of a detection specimen pre-processing device.

[0021] Figure 2 It is a structural schematic diagram of the placement block installed in the box in the utility model.

[0022] Figure 3 It is a schematic diagram of the structure in the cavity of the utility model.

[0023] Figure 4 It is a schematic cross-sectional structural diagram of the box body in the utility model.

[0024] Figure 5 It is a schematic diagram of the explosion structure of the placement block in the utility model.

[0025] Figure 6 It is a structural schematic diagram of the rack and the threaded barrel in the utility model.

[0026] The meaning of the symbols in the figure is:

[0027] 100, box body; 101, through slot; 110, cover plate; 120, handrail;

[0028] 201, cavity; 210, placement block; 211, placement hole; 220, clamping plate; 230, drive ring;

[0029] 300, card plate; 310, gear; 320, swing rod; 321, swing slot; 330, rack; 341, limit slot; 350, reinforcement plate;

[0030] 401, fixing hole; 402, recessed hole; 410, driving rod; 420, driving block; 430, positioning ring; 440, collar; 450, spring; 460, driving column;

[0031] 501, mounting groove; 502, rotating groove; 511, first inclined surface; 520, moving plate; 521, notch; 522, second inclined surface; 530, threaded rod; 541, slot;

[0032] 600, push rod; 610, threaded cylinder; 611, abutment plate; 612, handle; 621, limit plate. DETAILED DESCRIPTION

[0033] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only used to explain the utility model but not to limit it.

[0034] The following is combined with Figure 1-Figure 6 This embodiment is described in further detail.

[0035] like Figure 1 As shown, a specimen pretreatment device in this embodiment includes a box body 100, a cavity 201 with an opening facing upward is provided in the box body 100, a movable placement block 210 is provided in the cavity 201, a mounting groove 501 is provided on the upper end surface of the placement block 210 along its length direction, a plurality of placement holes 211 for placing test tubes are relatively provided on the upper end surface of the placement block 210 and located on both sides of the mounting groove 501, each of the placement holes 211 is provided with a clamping plate 220 for clamping the test tube, a driving assembly is provided in the mounting groove 501, the driving assembly is used to drive the clamping plate 220 to move, so as to clamp the test tube in the placement hole 211, a shaking assembly is provided on the bottom wall of the cavity 201, the shaking assembly is used to drive the placement block 210 to reciprocate in the cavity 201, so as to mix the blood in the test tube.

[0036] In this embodiment, after the collected blood is collected in the test tube, the test tube is placed in the corresponding placement hole 211 in sequence. When all the test tubes are placed in the corresponding placement hole 211, the clamping plate 220 in the placement hole 211 is driven by the driving component to approach the test tube, so that the clamping plate 220 and the side wall of the placement hole 211 can clamp the test tube, thereby avoiding the test tube and the side wall of the placement hole 211 from colliding and causing the test tube to break. After the test tube in the placement hole 211 is clamped, the blood in the test tube is transported through the box 100, and the collected blood can be transported to the laboratory for blood testing;

[0037] Among them, before the staff tests the blood in the test tube, the shaking assembly on the bottom wall of the cavity 201 can be used to drive the placement block 210 to reciprocate in the cavity 201, so that the test tube in the placement hole 211 can be shaken, thereby achieving mixing of the blood in the test tube. Compared with the existing ones, this kind of test specimen pretreatment device can avoid the test personnel from mixing the blood to be tested in the test tube in sequence and manually during actual use, thereby improving the work efficiency of the test personnel and being more convenient to use;

[0038] Among them, the blood in the test tube is mixed by shaking the component to achieve the treatment before the blood test;

[0039] The clamping plate 220 is generally arc-shaped, so that the side wall of the clamping plate 220 can fit more closely with the side wall of the test tube, thereby achieving a better clamping effect on the test tube;

[0040] Among them, a cover plate 110 for closing the upper opening of the cavity 201 is installed on the box 100. When the test tube is stored in the placement hole 211, the cover plate 110 closes the opening of the cavity 201, thereby preventing external dust from falling into the cavity 201 and contaminating the test tube. When the test personnel mix the blood in the test tube by shaking the component, the cover plate 110 needs to be removed from the box 100, so that when the shaking component mixes the blood in the test tube, the test personnel can observe the mixing of the blood, thereby improving its practicality;

[0041] When it is actually used, handrails 120 are fixedly installed on the opposite side walls of the box body 100, and the inspectors can better transport the box body 100 through the handrails 120, so as to facilitate the actual use.

[0042] like Figure 1-5As shown, in this embodiment, a fixing hole 401 and a concave hole 402 are provided on the side wall opposite to the installation groove 501 and at the corresponding placement hole 211, a driving rod 410 is provided on the side wall of the clamping plate 220, one end of which passes through the fixing hole 401 and extends into the concave hole 402, a driving block 420 is provided on the driving rod 410 located in the concave hole 402, and a first inclined surface 511 is provided on the driving block 420, and a rotating groove 502 is provided on the side wall opposite to the installation groove 501 and at one end;

[0043] The driving assembly includes a slidable moving plate 520 which is arranged in the mounting groove 501. The moving plate 520 is provided with a slot 521 for the driving block 420 to extend into at a position corresponding to the driving block 420. The slot 521 is provided with a second inclined surface 522 which matches the first inclined surface 511. A threaded rod 530 with one end threaded through the moving plate 520 is provided in the mounting groove 501. A driving ring 230 for driving the threaded rod 530 to rotate is sleeved on the threaded rod 530 located in the rotating groove 502. The driving ring 230 rotates to drive the threaded rod 530 to rotate. The threaded rod 530 rotates to drive the moving plate 520 to move. The movement of the moving plate 520 drives the second inclined surface 522 to squeeze the first inclined surface 511, so that the driving block 420 drives the clamping plate 220 to clamp the test tube. A moving part is provided in the fixing hole 401. The moving part is used to release the clamping of the clamping plate 220 on the test tube.

[0044] In this embodiment, by setting the fixing hole 401, the concave hole 402, the driving rod 410, the driving block 420, the first inclined surface 511, the rotating groove 502, the moving plate 520, the notch 521, the second inclined surface 522, the threaded rod 530, the driving ring 230 and the moving member, one end of the driving rod 410 is fixedly mounted on the clamping plate 220, the driving block 420 is fixedly mounted on the other end of the driving rod 410, and the driving ring 230 is fixedly mounted on the threaded rod 530. When the threaded rod 530 is driven by the driving ring 230 to move When rotating, the moving plate 520 moves along the installation groove 501. When the moving plate 520 moves, the second inclined surface 522 on the notch 521 squeezes the first inclined surface 511 on the driving block 420, so that the driving block 420 moves into the recessed hole 402. When the driving block 420 moves into the recessed hole 402, the driving block 420 can push the clamping plate 220 to move toward the test tube through the driving rod 410, so that the clamping plate 220 can clamp the test tube, and can also clamp test tubes of different sizes in the placement hole 211;

[0045] The side wall of the installation groove 501 limits the movable plate 520, so that when the threaded rod 530 is threadedly rotated in the movable plate 520, the movable plate 520 can move along the installation groove 501, so that the second inclined surface 522 on the movable plate 520 can squeeze or release the first inclined surface 511;

[0046] The two ends of the driving rod 410 are installed at the two ends of the installation groove 501 through the bearing seats, so that the driving rod 410 is installed in the installation groove 501;

[0047] The rotating groove 502 is provided so that the driving ring 230 with a larger diameter can be sleeved on the threaded rod 530. When the driving rod 410 is sleeved on the threaded rod 530, the top end of the driving ring 230 can extend out of the mounting groove 501, so that it is convenient for the inspector to drive the driving ring 230 to rotate.

[0048] In actual use, through the setting of the moving part, when the second inclined surface 522 releases the squeezing of the first inclined surface 511, the moving part can push the driving rod 410 to move toward the installation groove 501, so that the clamping plate 220 can abut against the side wall of the placement hole 211, thereby facilitating the detection personnel to place the new test tube in the placement hole 211, and avoiding the clamping plate 220 being located in the middle of the placement hole 211, affecting the placement of the test tube in the placement hole 211.

[0049] like Figure 1-4 As shown, in this embodiment, a positioning ring 430 for the driving rod 410 to pass through is provided at the opening of the fixing hole 401, and a collar 440 is sleeved on the driving rod 410 located in the fixing hole 401;

[0050] The moving part includes a spring 450 disposed in the fixing hole 401 , and the spring 450 is used to push the collar 440 on the driving rod 410 to approach the positioning ring 430 , so that the clamping plate 220 releases the clamping of the test tube.

[0051] In this embodiment, by setting the positioning ring 430, the collar 440 and the spring 450, the positioning ring 430 is threadedly installed at the opening of the fixing hole 401, and the collar 440 is fixedly installed on the driving rod 410. When the second inclined surface 522 releases the squeezing of the first inclined surface 511, the spring 450 pushes the collar 440 to move toward the positioning ring 430, thereby driving the driving rod 410 to move toward the installation groove 501, that is, the clamping plate 220 can abut against the side wall of the placement hole 211, so as to facilitate the detection personnel to place the test tube in the placement hole 211.

[0052] like Figure 1-6 As shown, in this embodiment, a slot 541 with two ends opened is provided on the opposite side wall of the placement block 210 along its width direction, a card plate 300 with one end inserted into the corresponding slot 541 is provided on the opposite side wall of the cavity 201 along its width direction, and a driving column 460 is provided on the lower end surface of the placement block 210;

[0053] The shaking assembly includes a rotatable gear 310 which is arranged on the bottom wall of the cavity 201, a swing rod 320 is provided on the side wall of the gear 310, and a swing groove 321 is provided on the upper end surface of the swing rod 320 for the lower end of the driving column 460 to be inserted. The gear 310 rotates to drive the swing rod 320 to swing, so that the driving column 460 drives the placement block 210 to shake in the cavity 201, and a rotating part for driving the gear 310 to rotate is provided on the bottom wall of the cavity 201.

[0054] In this embodiment, by setting the card slot 541, the card plate 300, the driving column 460, the gear 310, the swing rod 320, the swing groove 321 and the rotating member, the card plate 300 is fixedly installed on the cavity 201, the driving column 460 is fixedly installed on the placement block 210, and the swing rod 320 is fixedly installed on the gear 310. When the gear 310 is driven to rotate back and forth by the rotating member, the swing rod 320 on the gear 310 reciprocates along the circumference of the gear 310, and the reciprocating swing of the swing rod 320 can drive the driving column 460 to slide in the swing groove 321, thereby realizing the reciprocating movement of the driving column 460 in the cavity 201, that is, the placement block 210 reciprocates in the cavity 201, and the blood in the test tube is mixed;

[0055] When the card plate 300 in the cavity 201 is inserted into the card slot 541 on the placement block 210, the placement block 210 is limited, so that the movement of the placement block 210 in the cavity 201 is more stable. At the same time, there is a certain gap between the bottom wall of the placement block 210 and the bottom wall of the cavity 201, so that the driving column 460, the gear 310 and the swing rod 320 can obtain installation space in the cavity 201;

[0056] A column is fixedly mounted on the bottom wall of the cavity 201, and the gear 310 is mounted on the column through a bearing seat, so that the gear 310 is installed in the cavity 201;

[0057] In actual use, a reinforcing plate 350 is fixedly installed in the cavity 201 , and the upper end of the column is fixedly connected to the reinforcing plate 350 , so that the column is stably installed in the cavity 201 , thereby making the rotation of the gear 310 more stable.

[0058] like Figure 1-6 As shown, in this embodiment, a through groove 101 communicating with the cavity 201 is provided on the side wall of the box body 100 along its width direction;

[0059] The rotating member includes a rack 330 disposed in the cavity 201 and meshing with the gear 310. A push rod 600 is provided on the side wall of the rack 330, one end of which extends out of the through slot 101. The push rod 600 moves to drive the rack 330 to move, thereby rotating the gear 310.

[0060] In this embodiment, by setting the through slot 101, the rack 330 and the push rod 600, the push rod 600 is fixedly mounted on the rack 330. When the push rod 600 is driven to move back and forth along the through slot 101, the push rod 600 can drive the rack 330 to move back and forth in the cavity 201, so that the gear 310 drives the swing rod 320 to swing back and forth, and the placement block 210 is reciprocated.

[0061] A limiting groove 341 is provided on the bottom wall of the cavity 201 along its width direction, and a limiting plate 621 having one end inserted into the limiting groove 341 is fixedly installed on the rack 330. By inserting the limiting plate 621 into the limiting groove 341, the rack 330 can only move stably along the limiting groove 341, thereby better driving the gear 310 to rotate;

[0062] Among them, a threaded sleeve is provided on the protruding end of the push rod 600, and an abutment plate 611 is fixedly installed on the threaded sleeve 610 toward the side wall of the box body 100. After the mixing in the test tube is completed, it is necessary to drive the threaded sleeve 610 to rotate on the push rod 600 so that the abutment plate 611 on the threaded sleeve 610 can be pressed against the side wall of the box body 100, so that the push rod 600 is positioned and cannot move along the through groove 101. At the same time, the rack 330 is also positioned and cannot move. At this time, the gear 310 cannot drive the swing rod 320 to swing back and forth, so that the placement block 210 cannot move in the cavity 201, thereby preventing the placement block 210 from moving in the cavity 201 when the test personnel take the test tube for blood testing, thereby affecting the test personnel's taking of the test tube in the placement hole 211;

[0063] In actual use, a handle 612 is also installed on the threaded barrel 610, and the handle 612 can better drive the threaded barrel 610 to rotate. At the same time, the handle 612 can also better drive the threaded barrel 610 to move along the through groove 101, thereby driving the push rod 600 to move along the through groove 101.

[0064] Working principle: First, the collected blood is stored in a test tube, and then the test tube is placed in the corresponding placement hole 211. At this time, the threaded rod 530 is driven to rotate by the driving ring 230, so that the movable plate 520 moves along the installation groove 501, and the second inclined surface 522 on the movable plate 520 squeezes the first inclined surface 511 on the driving block 420, so that the driving block 420 can drive the clamping plate 220 to clamp the test tube in the placement hole 211 through the driving rod 410. After the test tube is clamped in the placement hole 211, the cavity 201 is closed by the cover plate 110, and then the box 100 is transported to the laboratory through the handrail 120 to test the blood in the test tube. When performing blood testing, the cover plate 110 is first removed, and then the handle 612 is used to drive the threaded cylinder 610 to reciprocate along the penetration, and the threaded cylinder 61 The reciprocating movement can drive the push rod 600 to move back and forth, so that the rack 330 can drive the gear 310 to rotate back and forth, and the rotation of the gear 310 drives the swing rod 320 to swing back and forth, thereby realizing the reciprocating movement of the driving column 460 in the cavity 201, that is, the placement block 210 moves back and forth in the cavity 201, and then the test tube in the placement hole 211 is shaken, and the blood in the test tube is mixed, so that the blood specimen in the test tube is pre-treated. After the mixing of the blood is completed, the driving ring 230 is rotated to release the clamping plate 220 from clamping the test tube, and then the handle 612 is rotated to make the handle 612 drive the threaded tube 610 to rotate on the push rod 600, and the abutment plate 611 on the threaded tube 610 is pressed against the side wall of the box 100. At this time, the test personnel can take out the test tube to test the blood in the test tube.

[0065] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. A specimen pre-treatment device, characterized in that: The invention comprises a box body (100), wherein a cavity (201) opening upward is provided in the box body (100), a movable placement block (210) is provided in the cavity (201), an upper end surface of the placement block (210) is provided with a mounting groove (501) along its length direction, a plurality of placement holes (211) for placing test tubes are provided on the upper end surface of the placement block (210) and are located at both sides of the mounting groove (501), each of the placement holes (211) is provided with a clamping plate (220) for clamping the test tube, a driving component is provided in the mounting groove (501), the driving component is used to drive the clamping plate (220) to move so as to clamp the test tube in the placement hole (211), and a shaking component is provided on the bottom wall of the cavity (201), the shaking component is used to drive the placement block (210) to reciprocate in the cavity (201) so as to mix the blood in the test tube.

2. A sample pretreatment device according to claim 1, characterized in that: A fixing hole (401) and a concave hole (402) are provided on the side wall opposite to the installation groove (501) and at a position corresponding to the placement hole (211); a driving rod (410) is provided on the side wall of the clamping plate (220) and one end of the driving rod passes through the fixing hole (401) and extends into the concave hole (402); a driving block (420) is provided on the driving rod (410) located in the concave hole (402); a first inclined surface (511) is provided on the driving block (420); and a rotating groove (502) is provided on the side wall opposite to the installation groove (501) and at one end; The driving assembly comprises a movable plate (520) which is arranged in the installation groove (501) and can slide. The movable plate (520) is provided with a slot (521) for the driving block (420) to extend into at a position corresponding to the driving block (420). The slot (521) is provided with a second inclined surface (522) which matches the first inclined surface (511). The installation groove (501) is provided with a threaded rod (530) with one end threaded through the movable plate (520). The threaded rod (530) located in the rotating groove (502) is provided with a threaded rod (530) for The driving ring (230) drives the threaded rod (530) to rotate. The driving ring (230) rotates to drive the threaded rod (530) to rotate. The threaded rod (530) rotates to drive the movable plate (520) to move. The movable plate (520) moves to drive the second inclined surface (522) to press the first inclined surface (511), so that the driving block (420) drives the clamping plate (220) to clamp the test tube. A movable member is provided in the fixing hole (401). The movable member is used to release the clamping of the test tube by the clamping plate (220).

3. A sample pretreatment device according to claim 2, characterized in that: A positioning ring (430) for the driving rod (410) to pass through is provided at the opening of the fixing hole (401), and a collar (440) is sleeved on the driving rod (410) located in the fixing hole (401); The moving part includes a spring (450) arranged in the fixing hole (401), and the spring (450) is used to push the collar (440) on the driving rod (410) to approach the positioning ring (430), so that the clamping plate (220) releases the clamping of the test tube.

4. The sample pretreatment device according to claim 1, characterized in that: A slot (541) with two ends opened is provided on the side wall opposite to the placement block (210) along its width direction, a card plate (300) with one end inserted into the corresponding slot (541) is provided on the side wall opposite to the cavity (201) along its width direction, and a driving column (460) is provided on the lower end surface of the placement block (210); The shaking assembly comprises a gear (310) which is rotatably arranged on the bottom wall of the cavity (201), a swing rod (320) is arranged on the side wall of the gear (310), and a swing groove (321) is arranged on the upper end surface of the swing rod (320) for the lower end of the driving column (460) to be inserted. The gear (310) rotates to drive the swing rod (320) to swing, so that the driving column (460) drives the placement block (210) to shake in the cavity (201), and a rotating part for driving the gear (310) to rotate is arranged on the bottom wall of the cavity (201).

5. The sample pretreatment device according to claim 4, characterized in that: A through groove (101) communicating with the cavity (201) is provided on the side wall of the box body (100) along its width direction; The rotating member comprises a rack (330) disposed in the cavity (201) and meshing with the gear (310); a push rod (600) having one end extending out of the through slot (101) is disposed on a side wall of the rack (330); the push rod (600) moves to drive the rack (330) to move, thereby realizing the rotation of the gear (310).

6. A test specimen pre-treatment device according to claim 5, characterized in that: A threaded barrel (610) is threadedly sleeved on the protruding end of the push rod (600), and an abutment plate (611) is provided on the side wall of the threaded barrel (610) facing the box body (100).

7. The sample pretreatment device according to claim 5, characterized in that: A limiting groove (341) is provided on the bottom wall of the cavity (201) along its width direction, and a limiting plate (621) with one end inserted into the limiting groove (341) is provided on the rack (330).

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