Device and method for subpackaging reagent freeze-drying balls into eight-connection pipe

Abstract

The invention provides a device and method for subpackaging reagent freeze-drying balls into an eight-joint pipe, and belongs to the technical field of production scale trace reagent freeze-drying ball subpackaging, the device comprises a ball screening component, a ball separating component and a ball separating component, the ball screening component comprises a subpackaging box and a guide plate, the subpackaging box is provided with screening holes for freeze-drying balls to pass through, and the guide plate is provided with guide holes; the cover closing component comprises a base and an eight-connection pipe seat, the eight-connection pipe seat is movably connected with the base, the base is provided with a horizontal groove, a vertical groove and a containing hole, the eight-connection pipe seat is provided with a linkage block and a containing groove, and the linkage block is connected with the containing hole. The device has the beneficial effects that the guide plate can move to enable the guide holes to be aligned with the sieve holes, so that freeze-drying balls can smoothly fall into an eight-connection pipe installed through the eight-connection pipe seat, then the upper seat body can move along the horizontal groove to push a cover body of the eight-connection pipe to be bent and covered, and then the eight-connection pipe is closed in a staggered mode; and a cover body of the eight-connection pipe is pressed down by the weight of the eight-connection pipe and force applied by an operator to realize cover closing, so that the whole process of subpackaging and packaging is realized.

Description

Technical Field

[0001] The invention belongs to the technical field of production-scale micro-reagent freeze-dried ball packaging, and relates to a device and a method for packaging reagent freeze-dried balls into eight-tube couplings. Background Art

[0002] Micro-volume freeze-dried reagent products represented by molecular detection reagents are usually provided in the form of freeze-dried pellets. During manufacturing, liquid reagents are separated by fixed volume and low-temperature operation to obtain reagent frozen ice beads, and the batch-packaged ice beads are vacuum dried to obtain batches of freeze-dried pellets. Commercially available final products usually require that the pellets be individually packaged and stored in eight-tube strips of commonly used specifications for experiments, so as to facilitate direct reconstitution and use. Therefore, during the production process, a large number of freeze-dried pellets need to be packaged into eight-tube strips of the target type under dry conditions, and the tube caps must be tightly closed to achieve dry and airtight packaging to meet the requirements of long-term storage and conventional transportation. At present, there are several ways to package a large number of freeze-dried pellets into eight-tube strips one by one:

[0003] 1) Direct manual packaging. Use common tools, such as tweezers, cotton swabs, etc., to pick up or move the freeze-dried beads into the eight-tube strips. Manually moving each bead is extremely inefficient, and requires very high hand-eye coordination skills and operational stability from the operator. The labor intensity and labor costs are very high. At the same time, this method is difficult to support the expansion of production scale and the continuous labor of skilled personnel. In addition, using hand-held tools to directly touch the beads has a relatively high probability of mechanically damaging the beads or even crushing them, resulting in product loss and pollution of the operating environment.

[0004] 2) Use negative pressure suction to move the beads individually. Because the freeze-dried beads are fluffy dry matter rather than airtight entities, this is the physical form required for the reconstitution characteristics of the beads. Light negative pressure does not have enough adsorption force on the beads and cannot hold the beads; the mechanical strength of the beads is very limited, they are loose and fragile, and can only accept very gentle operations. High negative pressure suction can easily damage the beads. The size and strength of the vacuum area are very difficult to determine. This operation method is not much different from direct manual packaging.

[0005] 3) Use positive pressure to blow and move the balls. The balls are fluffy dry matter with very small weight, and it is difficult to control the local intensity of the blowing to accurately and batch-control the directional movement of the balls.

[0006] 4) It is known that there are many automatic pellet filling equipment, including finished machines and designs in drawings, all of which are powered automated mechanical equipment. Their filling efficiency is relatively high, but they all have corresponding shortcomings. For example, a utility model patent with application number CN202221184120.8 provides a freeze-dried reagent filling component including: a storage device including a plurality of reagent container units, the reagent container unit having a storage cavity, the storage cavity is used to store the freeze-dried reagent; a fixed frame for fixing the storage device; a slot plate, provided with a plurality of reagent slots, each reagent slot corresponds to each reagent container unit, and the size of the reagent slot matches the freeze-dried reagent. During packaging, the freeze-dried reagent is dropped into each reagent slot, and then the storage device is turned upside down on the slot plate, and each reagent container unit is aligned with each reagent slot in the slot plate, and then the slot plate is kept in contact with the storage device and the slot plate is flipped over, and finally the slot plate is vibrated to make the freeze-dried reagent in the reagent slot fall into the corresponding reagent container unit, so that the freeze-dried reagent can be quickly packaged into each reagent container unit. Although similar existing technologies have completed the distribution of small balls into eight-tube strips, they have not completed the whole process of closing the tube cover and pressing the tube cover to complete the sealed packaging, which is one of the essential key operating steps in the packaging process, and therefore has a large room for improvement. Summary of the invention

[0007] The purpose of the present invention is to solve the above problems in the prior art and to provide a device and method for dispensing reagent freeze-dried balls into eight-tube strips.

[0008] The purpose of the present invention can be achieved by the following technical scheme: a device for dispensing reagent freeze-dried balls into eight tubes, comprising:

[0009] A ball screening component, comprising a packaging box and a guide plate, wherein the packaging box is provided with a sieve hole for the freeze-dried balls to pass through, the guide plate is located below the packaging box and can move relative to the packaging box, the guide plate is provided with a guide hole for the freeze-dried balls to pass through, and the guide plate can be moved so that the guide hole is aligned with or misaligned with the sieve hole;

[0010] The closing cover component includes a base and an upper seat body, the upper seat body is movably connected to the base, the base is provided with a horizontal groove, a vertical groove and a receiving hole for accommodating an eight-tube joint, one end of the horizontal groove is connected to the top of the vertical groove, the upper seat body is provided with a linkage block and a receiving groove for accommodating an eight-tube cover body, and the upper seat body can move along the horizontal groove or along the vertical groove.

[0011] In the above-mentioned device for packaging reagent freeze-dried balls into eight-tube strips, it also includes a clamping connecting rod, which is movably connected to the base, the upper seat body is provided with a clamping pin, and the clamping connecting rod is provided with a hook body portion, and the hook body portion can hook the clamping pin.

[0012] In the above-mentioned device for packaging reagent freeze-dried balls into eight-tube strips, the clamping connecting rod includes a first rod body and a second rod body, one end of the first rod body is rotatably connected to the base, the other end of the first rod body is formed with a first operating part, one end of the second rod body is rotatably connected to the middle part of the first rod body, the other end of the second rod body is formed with a second operating part, and the hook body part is formed in the middle part of the second rod body.

[0013] In the above-mentioned device for dispensing reagent freeze-dried balls into eight-tube strips, the pressing connecting rod further includes a handle, and the handle is rotatably connected to the second operating part.

[0014] In the above-mentioned device for dispensing reagent freeze-dried balls into eight-tube strips, the screening component further includes a guide rod, the guide rod is connected to the guide plate, and the guide rod passes through the dispensing box.

[0015] In the above-mentioned device for dispensing reagent freeze-dried balls into eight-tube strips, the guide rod is provided with a compression spring, the compression spring is in contact with the dispensing box, and the compression spring drives the guide plate to move and causes the guide hole to be misaligned with the sieve hole.

[0016] In the above-mentioned device for dispensing reagent freeze-dried balls into eight-tube strips, the screening component further includes a bottom plate, the bottom plate is connected to the dispensing box, and the sieve plate is located between the dispensing box and the bottom plate.

[0017] In the above-mentioned device for dispensing reagent freeze-dried balls into eight-tube strips, the cover component further includes a top plate, the base forms an active cavity, the top plate is located in the active cavity and can be raised and lowered relative to the base.

[0018] In the above-mentioned device for packaging reagent freeze-dried balls into eight-tube strips, the base includes a lower seat body and an eight-tube strip seat, the eight-tube strip seat is detachably connected to the lower seat body, the horizontal groove, the vertical groove and the receiving hole are all located in the eight-tube strip seat, and the movable cavity is located between the lower seat body and the eight-tube strip seat and is connected to the receiving hole.

[0019] In the above-mentioned device for dispensing reagent freeze-dried balls into eight-tube strips, the lower seat body is provided with a positioning column, and the eight-tube strip seat is provided with a positioning groove, and the positioning column can be inserted into the positioning groove.

[0020] Secondly, a method for dispensing the reagent freeze-dried pellets into eight tubes comprises the steps of:

[0021] S1: Manually operate the guide rod to move the guide plate so that the guide hole is aligned with the sieve hole, so that the freeze-dried balls fall from the sieve hole through the guide hole into the eight-tube joint on the base;

[0022] S2: manually operate the upper seat body to move along the horizontal groove toward the vertical groove so that the cover body of the eight-tube joint is bent and covers the eight-tube joint;

[0023] S3: manually operate the upper seat body to press down along the vertical groove, so that the cover body of the eight-tube joint is tightly covered on the eight-tube joint;

[0024] S4: Manually operate the first rod and the second rod to rotate upward so that the hook body hooks the clamping pin, and then manually operate the first rod to rotate downward to drive the hook body to hook the clamping pin and press down, thereby driving the upper seat to be pressed against the base.

[0025] In the above method for dispensing the reagent freeze-dried pellets into eight tube strips, the step of:

[0026] S5: Manually operate the top plate to push the eight-tube strip upward and separate it from the base.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The guide plate can be moved to align the guide hole with the sieve hole so that the freeze-dried balls can smoothly fall into the eight-tube installed by the upper seat body, and then be dislocated to close it. Then the upper seat body can move along the horizontal groove to push the cover of the eight-tube to bend and cover it, and rely on its own gravity and external force to fall down along the vertical groove to press the cover of the eight-tube to close the cover, thus realizing the whole process of subpackaging and packaging.

[0029] 2. The clamping connecting rod connected to the base hooks the clamping pin of the upper seat body through the hook body to press down. On the basis of pressing down the cover body of the eight-tube joint originally, the cover body of the eight-tube joint is further sealed to ensure the airtight packaging.

[0030] 3. The second rod body is rotated upward and hooked onto the clamping pin of the upper seat body through the hook body, and then the first rod body is rotated downward. The clamping pin hooked onto the upper seat body can be pressed down relatively easily through the principle of the lever.

[0031] 4. The guide rod passes through the dispensing box and is connected to the guide plate, so that the user can pull or push the guide rod from outside the dispensing box to drive the guide plate to move without directly contacting the guide plate with the hand for driving.

[0032] 5. The compression spring drives the guide plate to move and misaligns the guide hole and the sieve hole. In this normal state of maintaining the misalignment between the guide hole and the sieve hole, it can ensure that the freeze-dried balls will not accidentally fall into the cover component, and at the same time, the guide plate can be automatically closed when the freeze-dried balls enter.

[0033] 6. The top plate is used to contact the bottom of the eight-tube strip. The top plate is located in the movable cavity and can be raised and lowered relative to the base, so that the user can manually lift it up to take out the eight-tube strip after the entire process of subpackaging and packaging is completed, without having to pick it out by hand.

[0034] 7. The movable cavity is located between the lower seat body and the eight-tube seat and is connected to the accommodating hole, which is convenient for the rapid installation and removal of the top plate and the user to directly observe the eight-tube from the outside.

[0035] 8. The freeze-dried balls need to be packaged in a fairly dry environment. To maintain this environment, the glove box needs to be equipped with thick gloves with good sealing effect, which makes the operation in the glove box extremely inconvenient. The device has a simple structure and is easy to operate, which brings convenience to the operator.

[0036] 9. The space inside the glove box is limited and completely sealed. The device is small in size, easy to enter and exit the glove box, and convenient to move and operate.

[0037] 10. The glove box is completely sealed, and complex machinery is very likely to produce sanitary dead corners. This device is made of all metal, easy to disassemble and assemble, and easy to clean, which can effectively avoid the problem of secondary pollution in the glove box.

[0038] 11. As a common packaging carrier for freeze-dried reagents, the eight-tube with cap can independently seal the smallest usage unit, which can reduce the moisture absorption and contamination of the reagents caused by repeated opening. At the same time, the freeze-dried reagents pre-packed in the eight-tube with cap can reduce the time and cost of weighing and packing reagents in the laboratory. This device is suitable for the eight-tube with cap. At present, there is no freeze-dried ball packing device for the eight-tube with cap on the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the structure of the device for dispensing reagent freeze-dried balls into eight tubes of the present invention.

[0040] Figure 2 It is an exploded view of the device for dispensing reagent freeze-dried balls into eight tubes of the present invention.

[0041] Figure 3 This is an exploded view from another perspective of the device for dispensing reagent freeze-dried balls into eight-tube strips of the present invention.

[0042] Figure 4 It is a top view of the device for dispensing reagent freeze-dried balls into eight tubes of the present invention.

[0043] Figure 5 for Figure 3 Cross-sectional view from AA perspective.

[0044] Figure 6 It is an exploded view of the screen ball component of the present invention.

[0045] Figure 7 It is a structural schematic diagram of the lower seat body of the present invention.

[0046] Figure 8 It is a schematic structural diagram of the eight-unit tube socket of the present invention.

[0047] Fig. 9 It is a schematic structural diagram of the clamping connecting rod of the present invention.

[0048] Fig.10 It is a schematic diagram of the structure of the eight-tube joint with a cover.

[0049] In the figure, 100, sieve ball component; 110, packaging box; 111, sieve hole; 120, guide plate; 121, guide hole; 130, guide rod; 140, bottom plate; 200, cover component; 210, lower seat; 211, positioning column; 220, eight-unit tube seat; 221, horizontal groove; 222, vertical groove; 223, accommodating hole; 224, positioning groove; 230, upper seat; 231, linkage block; 232, accommodating groove; 233, clamping pin; 240, top plate; 300, clamping connecting rod; 310, first rod body; 311, first operating part; 320, second rod body; 321, second operating part; 322, hook body; 330, handle. DETAILED DESCRIPTION

[0050] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0051] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0052] In addition, in the present invention, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0055] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0056] like Fig.10 The picture shows an eight-tube strip with a cap. As a commonly used packaging carrier for freeze-dried reagents, the eight-tube strip with a cap can independently seal the smallest usage unit, which can reduce moisture absorption and contamination of the reagents caused by repeated opening.

[0057] At the same time, the use of pre-packaged freeze-dried reagents in eight-tube strips with caps can reduce the time and cost of weighing and packaging reagents in the laboratory.

[0058] The device is suitable for eight tubes in a strip with caps. Currently, there is no freeze-dried ball packaging device for eight tubes in a strip with caps on the market.

[0059] like Figure 1-Figure 9 As shown, a device for dispensing freeze-dried balls of reagents into eight-tube strips includes: a sieve ball component 100 and a cover component 200.

[0060] Among them, the ball screening component 100 includes a packaging box 110 and a guide plate 120. The packaging box 110 is provided with a sieve hole 111 for the freeze-dried balls to pass through. The guide plate 120 is located below the packaging box 110 and can move relative to the packaging box 110. The guide plate 120 is provided with a guide hole 121 for the freeze-dried balls to pass through. The guide plate 120 can be moved to align or offset the guide hole 121 with the sieve hole 111.

[0061] Among them, the closing cover component 200 includes a base and an upper seat body 230, and the upper seat body 230 can be movably connected to the base. The base is provided with a horizontal groove 221, a vertical groove 222 and a receiving hole 223 for accommodating an eight-tube joint. One end of the horizontal groove 221 is connected to the top of the vertical groove 222. The upper seat body 230 is provided with a linkage block 231 and a receiving groove 232 for accommodating the eight-tube cover body. The upper seat body 230 can move along the horizontal groove 221 or along the vertical groove 222.

[0062] In this embodiment, the guide plate 120 can be moved to align the guide hole 121 with the sieve hole 111 so that the freeze-dried balls can smoothly fall into the eight-tube installed by the upper seat body 230, and then be offset to close it. Then, the upper seat body 230 can move along the horizontal groove 221 to push the cover of the eight-tube to bend and cover it, and rely on its own gravity and external force to fall down along the vertical groove 222 to press the cover of the eight-tube to close the cover, thereby realizing the whole process of subpackaging and packaging.

[0063] like Figure 1-Figure 9 As shown, based on the above embodiment, it also includes a clamping link 300, which is movably connected to the base, the upper seat body 230 is provided with a clamping pin 233, and the clamping link 300 is provided with a hook body 322, and the hook body 322 can hook the clamping pin 233.

[0064] In this embodiment, the clamping link 300 connected to the base hooks the clamping pin 233 of the upper seat body 230 through the hook body 322 to press down. On the basis of the original downward pressure of the cover body of the eight-tube joint, the cover body of the eight-tube joint is further sealed to ensure a closed package.

[0065] like Figure 1-Figure 9 As shown, on the basis of the above embodiment, the clamping link 300 includes a first rod body 310 and a second rod body 320, one end of the first rod body 310 is rotatably connected to the base, and the other end of the first rod body 310 is formed with a first operating portion 311, one end of the second rod body 320 is rotatably connected to the middle part of the first rod body 310, and the other end of the second rod body 320 is formed with a second operating portion 321, and the hook body portion 322 is formed in the middle part of the second rod body 320.

[0066] In this embodiment, the second rod 320 rotates upward and hooks the clamping pin 233 of the upper seat 230 through the hook body 322, and then the first rod 310 rotates downward, so that the clamping pin 233 hooked on the upper seat 230 can be easily pressed down through the principle of leverage.

[0067] Preferably, the pressing link 300 further includes a handle 330 , and the handle 330 is rotatably connected to the second operating portion 321 .

[0068] like Figure 1-Figure 9 As shown, on the basis of the above embodiment, the screening component further includes a guide rod 130 , the guide rod 130 is connected to the guide plate 120 , and the guide rod 130 passes through the packaging box 110 .

[0069] In this embodiment, the guide rod 130 passes through the packaging box 110 and is connected to the guide plate 120, so that the user can pull or push the guide rod 130 from outside the packaging box 110 to drive the guide plate 120 without directly contacting the guide plate 120 with the hand for driving.

[0070] like Figure 1-Figure 9 As shown, based on the above embodiment, the guide rod 130 is provided with a compression spring (not shown in the figure), and the compression spring is in contact with the packaging box 110. The compression spring drives the guide plate 120 to move and causes the guide hole 121 to be misaligned with the sieve hole 111.

[0071] In this embodiment, the compression spring drives the guide plate 120 to move and causes the guide hole 121 to be misaligned with the sieve hole 111. In this normal state of maintaining the misalignment between the guide hole 121 and the sieve hole 111, it can ensure that the freeze-dried balls will not accidentally fall into the cover component 200, and at the same time, the guide plate 120 can be automatically closed when the freeze-dried balls enter.

[0072] Preferably, the screening component further includes a bottom plate 140 , the bottom plate 140 is connected to the packaging box 110 , and the screen plate is located between the packaging box 110 and the bottom plate 140 .

[0073] like Figure 1-Figure 9 As shown, based on the above embodiment, the cover component 200 further includes a top plate 240, the base is formed with an active cavity, and the top plate 240 is located in the active cavity and can be raised and lowered relative to the base.

[0074] In this embodiment, the top plate 240 is used to contact the bottom of the eight-tube strip. The top plate 240 is located in the movable cavity and can be raised and lowered relative to the base, so that the user can manually lift it up to remove the eight-tube strip after the entire process of subpackaging and packaging is completed without having to pick it out by hand.

[0075] like Figure 1-Figure 9 As shown, on the basis of the above embodiment, the base includes a lower seat body 210 and an eight-unit tube socket 220, and the eight-unit tube socket 220 is detachably connected to the lower seat body 210, the horizontal groove 221, the vertical groove 222 and the accommodating hole 223 are all located in the eight-unit tube socket 220, and the active cavity is located between the lower seat body 210 and the eight-unit tube socket 220 and is connected to the accommodating hole 223.

[0076] In this embodiment, the movable cavity is located between the lower seat body 210 and the eight-tube seat 220 and is connected to the accommodating hole 223, which is convenient for the rapid installation and removal of the top plate 240 and the user to directly observe the eight-tube from the outside.

[0077] like Figure 1-Figure 9As shown, on the basis of the above embodiment, the lower seat body 210 is provided with a positioning column 211 , and the eight-unit tube seat 220 is provided with a positioning groove 224 , and the positioning column 211 can be inserted into the positioning groove 224 .

[0078] In this embodiment, the positioning column 211 can be inserted into the positioning groove 224 , thereby realizing the rapid disassembly and assembly of the eight-unit tube seat 220 and the lower seat body 210 .

[0079] like Figure 1-Figure 9 As shown, a method for dispensing reagent freeze-dried pellets into eight tubes comprises the steps of:

[0080] S1: Manually operate the guide rod 130 to move the guide plate 120 so that the guide hole 121 is aligned with the sieve hole 111, so that the freeze-dried balls fall from the sieve hole 111 through the guide hole 121 into the eight-tube joint on the base;

[0081] S2: manually operate the upper seat 230 to move along the horizontal groove 221 toward the vertical groove 222 so that the cover of the eight-tube joint is bent and covers the eight-tube joint;

[0082] S3: Manually operate the upper seat body 230 to press down along the vertical groove 222, so that the cover body of the eight-tube joint is tightly covered on the eight-tube joint;

[0083] S4: Manually operate the first rod 310 and the second rod 320 to rotate upward so that the hook portion 322 hooks the pressing pin 233, and then manually operate the first rod 310 to rotate downward to drive the hook portion 322 to hook the pressing pin 233 and press down, thereby driving the upper seat 230 to be pressed against the base;

[0084] S5: Manually operate the top plate 240 to push the eight-tube strip upward and separate it from the base.

[0085] In this embodiment, the method of packaging reagent freeze-dried balls into eight-tube strips can be operated completely manually without the need for electricity. It can be applied to the production and packaging operations of freeze-dried balls using various types of eight-tube consumables. It can easily achieve a higher packaging efficiency, avoid the loss and pollution caused by the breakage of small balls due to the use of external force during the packaging operation, and facilitate the packaging quality inspection.

Claims

1. A device for dispensing reagent freeze-dried balls into eight tubes, characterized in that: include: A ball screening component, comprising a packaging box and a guide plate, wherein the packaging box is provided with a sieve hole for the freeze-dried balls to pass through, the guide plate is located below the packaging box and can move relative to the packaging box, the guide plate is provided with a guide hole for the freeze-dried balls to pass through, and the guide plate can be moved so that the guide hole is aligned with or misaligned with the sieve hole; The closing cover component includes a base and an upper seat body, the upper seat body is movably connected to the base, the base is provided with a horizontal groove, a vertical groove and a receiving hole for accommodating an eight-tube joint, one end of the horizontal groove is connected to the top of the vertical groove, the upper seat body is provided with a linkage block and a receiving groove for accommodating an eight-tube cover body, and the upper seat body can move along the horizontal groove or along the vertical groove.

2. The device for dispensing reagent freeze-dried balls into eight tubes as claimed in claim 1, characterized in that: It also includes a clamping link, which is movably connected to the base. The upper seat body is provided with a clamping pin, and the clamping link is provided with a hook body portion, and the hook body portion can hook the clamping pin.

3. The device for dispensing reagent freeze-dried balls into eight tubes as claimed in claim 2, characterized in that: The clamping connecting rod includes a first rod body and a second rod body, one end of the first rod body is rotatably connected to the base, the other end of the first rod body is formed with a first operating portion, one end of the second rod body is rotatably connected to the middle part of the first rod body, the other end of the second rod body is formed with a second operating portion, and the hook body portion is formed in the middle part of the second rod body.

4. The device for dispensing reagent freeze-dried balls into eight tubes as claimed in claim 1, characterized in that: The screening component also includes a guide rod, which is connected to the guide plate and passes through the packaging box.

5. The device for dispensing lyophilized balls of reagents into eight tubes as claimed in claim 4, characterized in that: The guide rod is provided with a compression spring, the compression spring is in contact with the packaging box, and the compression spring drives the guide plate to move and causes the guide hole to be misaligned with the sieve hole.

6. The device for dispensing lyophilized balls of reagents into eight tubes as claimed in claim 4, characterized in that: The screening component further comprises a bottom plate, which is connected to the dispensing box, and the sieve plate is located between the dispensing box and the bottom plate.

7. The device for dispensing reagent freeze-dried balls into eight tubes as claimed in claim 2, characterized in that: The cover component further comprises a top plate, the base is formed with an active cavity, the top plate is located in the active cavity and can be lifted and lowered relative to the base.

8. The device for dispensing reagent freeze-dried balls into eight tubes as claimed in claim 7, characterized in that: The base includes a lower seat body and an eight-unit tube seat, the eight-unit tube seat is detachably connected to the lower seat body, the horizontal groove, the vertical groove and the accommodating hole are all located in the eight-unit tube seat, and the movable cavity is located between the lower seat body and the eight-unit tube seat and is connected to the accommodating hole.

9. A method for packaging reagent freeze-dried pellets into eight tube strips, characterized in that: Includes steps: S1: Manually operate the guide rod to move the guide plate so that the guide hole is aligned with the sieve hole, so that the freeze-dried balls fall from the sieve hole through the guide hole into the eight-tube joint on the base; S2: manually operate the upper seat body to move along the horizontal groove toward the vertical groove so that the cover body of the eight-tube joint is bent and covers the eight-tube joint; S3: manually operate the upper seat body to press down along the vertical groove, so that the cover body of the eight-tube joint is tightly covered on the eight-tube joint; S4: Manually operate the first rod and the second rod to rotate upward so that the hook body hooks the clamping pin, and then manually operate the first rod to rotate downward to drive the hook body to hook the clamping pin and press down, thereby driving the upper seat to be pressed against the base.

10. A method for packaging reagent freeze-dried pellets into eight tube strips as claimed in claim 9, characterized in that: Also includes the steps: S5: Manually operate the top plate to push the eight-tube strip upward and separate it from the base.

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