Airtightness testing device for a kit

Abstract

The utility model discloses a kind of air-tightness detection devices for kit, including base, testing mechanism is equipped on the base, the base is equipped with the pressing mechanism matched with the testing mechanism, the base is equipped with the pumping mechanism for carrying out negative pressure extraction to kit, the kit is placed in the testing mechanism, the pressing mechanism is compact to the kit.The utility model is provided with multiple clamping slots for placing kit on testing mechanism, by cooperating with pressing mechanism and pumping mechanism, the air-tightness condition of multiple kits can be realized quickly screening, reduce the working strength of operator inspection, improve the work efficiency of inspection.

Description

Technical Field

[0001] This utility model belongs to the field of airtightness testing technology, specifically relating to an airtightness testing device for reagent kits. Background Technology

[0002] Medical devices refer to instruments, equipment, appliances, in vitro diagnostic reagents and calibrators, materials and other similar or related items that are used directly or indirectly on the human body, including the necessary computer software. Medical devices include medical equipment and medical consumables. Their efficacy is mainly obtained through physical means, not through pharmacological, immunological or metabolic means, or although these means are involved, they only play an auxiliary role. One type of reagent kit for a blood analyzer used in POCT (point-of-care testing) requires an airtightness test after the kit is manufactured.

[0003] Currently, the airtightness of reagent kits on the market generally relies on manual operation by workers, which is inefficient and cannot meet the requirements of high-efficiency production. This increases the workload of quality inspectors and seriously affects the efficiency of inspection work. Utility Model Content

[0004] The purpose of this invention is to provide an airtightness testing device for reagent kits, so as to solve at least one of the above-mentioned technical problems. The device can simultaneously test the airtightness of multiple reagent kits, which can reduce the workload of testing and improve the efficiency of testing.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows: An airtightness testing device for a reagent kit includes: a base, a testing mechanism on the base, a clamping mechanism on the base that cooperates with the testing mechanism, and a suction mechanism on the base for negative pressure extraction of the reagent kit. The reagent kit is placed inside the testing mechanism, and the clamping mechanism clamps the reagent kit.

[0006] Preferably, the testing mechanism includes a mounting frame with multiple slots for placing the reagent kit, a sealing element at the bottom of each slot, and a first mounting plate at the bottom of the mounting frame for fixing the sealing element.

[0007] Preferably, the pressing mechanism includes a first base plate, a motor disposed on the first base plate, a vertical rod disposed on the first base plate, and a second mounting plate that moves on the vertical rod. The bottom of the second mounting plate is provided with a pressure member, which is used to press the reagent kit.

[0008] Preferably, the base is provided with a second base plate, and several parallel slide rails are provided between the second base plate and the first base plate in the horizontal direction. One end of the slide rail is installed on the first base plate, and the other end of the slide rail is installed on the second base plate. The bottom of the mounting bracket is provided with a slider that slides in cooperation with the slide rail.

[0009] Preferably, the mounting bracket is provided with a handrail on the side near the second base plate.

[0010] Preferably, the first base plate is provided with a first magnetic attractor, and the outer side of the mounting bracket is provided with a first magnetic block that cooperates with the first magnetic attractor; the second base plate is provided with a second magnetic attractor along the side close to the slide rail, and the bottom of the mounting bracket is provided with a second magnetic block that cooperates with the second magnetic attractor along the direction close to the handrail.

[0011] Preferably, the first base plate and the second base plate are respectively provided with a first limiting member and a second limiting member. The second limiting member is respectively provided with a first groove for fixing one end of the slide rail and a second groove for installing the second magnetic member. The other end of the slide rail is fixed on the first limiting member.

[0012] Preferably, the pressure member includes a mounting block disposed at the bottom of the second mounting plate, a protruding plate disposed at the bottom of the mounting block extending circumferentially from the outside to the inside, and a pressure head disposed on the protruding plate; the pressure head is provided with a third groove, the mounting block is provided with a protruding strip inside, the protruding strip is provided with a spring along the direction from top to bottom, and the protruding plate can abut against the pressure head.

[0013] Preferably, the depressurization mechanism includes a negative pressure gas storage tank, an air pump, a pressure relief valve, and a control main board. The control main board is equipped with a pressure sensor. The bottom of the negative pressure gas storage tank is provided with multiple first connectors, which are respectively connected to the reagent kit, the pressure sensor, and the pressure relief valve. The top of the negative pressure gas storage tank is provided with a second connector, which is connected to the air pump.

[0014] Preferably, the reagent kit has a third connector at the bottom, and the reagent kit has a first cavity, a second cavity, and a microporous structure, with the microporous structure disposed between the first cavity and the second cavity.

[0015] Beneficial effects: This utility model discloses an airtightness testing device for reagent kits. By setting multiple slots for placing reagent kits on the mounting frame, the clamping mechanism can clamp multiple reagent kits at once. With the help of the suction and pressing mechanism, the airtightness of multiple reagent kits can be quickly screened, reducing the workload of the operator and improving the efficiency of the inspection. At the same time, the mounting frame is set on the slide rail and fixed to the position to be tested or the position to replace the reagent kit by magnetic attraction, which makes it easier for the operator to push the mounting frame while effectively preventing the mounting frame from moving. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the present invention; Figure 3 This is a top view of the present invention; Figure 4 This is a schematic diagram of the bottom structure of this utility model; Figure 5 This is a schematic diagram of the pressing mechanism of this utility model; Figure 6 for Figure 5 Top view of the dashed section; Figure 7 for Figure 6 Sectional view along line AA; Figure 8 This is a schematic diagram of the structure of the reagent kit of this utility model; Figure 9 This is a schematic diagram of the internal structure of the reagent kit of this utility model; Figure 10 This is a schematic diagram of the sealing element of this utility model; Figure 11 This is a top view of the sealing element of this utility model.

[0017] Figure Labels 1. Base; 2. Testing mechanism; 3. Clamping mechanism; 4. Reagent kit; 5. Pressure-drawing mechanism; 6. Second base plate; 7. Slide rail; 8. Slider; 9. Handrail; 10. First limiting component; 11. Second limiting component; 12. First groove; 13. Second groove; 21. Mounting bracket; 22. Slot; 23. Seal; 24. First mounting plate; 31. First base plate; 32. Motor; 33. Upright pole; 34. Second mounting plate; 35. Pressure-applying component; 36. Sleeve; 41. Third connector; 42. First cavity; 43. Second cavity; 44. Microporous structure; 45. Microporous sheet; 51. 52. Negative pressure gas storage tank; 53. Air pump; 54. Pressure relief valve; 55. Control main board; 56. Air pressure sensor; 57. First connector; 58. Second connector; 69. Second magnetic chuck; 60. Second magnetic block; 231. First connecting part; 232. Fixing part; 233. Second connecting part; 311. First magnetic chuck; 312. First magnetic block; 351. Mounting block; 352. Protruding plate; 353. Pressure head; 354. Third groove; 355. Protruding strip; 356. Spring; 2311. Fourth groove; 2312. First protrusion; 2313. Through hole; 2314. Second protrusion. Detailed Implementation

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0019] The technical solution of this utility model will be described in detail below with specific embodiments.

[0020] refer to Figure 1-11 As shown, an airtightness testing device for a reagent kit includes a base 1, a testing mechanism 2 on the base 1, a clamping mechanism 3 on the base 1 that cooperates with the testing mechanism 2, and a suction mechanism 5 on the base 1 for negative pressure extraction of a reagent kit 4. The reagent kit 4 is placed inside the testing mechanism 2, and the clamping mechanism 3 clamps the reagent kit 4.

[0021] In this embodiment, as Figure 1 and Figure 2 As shown, the testing mechanism 2 includes a mounting frame 21, which has multiple slots 22 for placing the reagent kit 4. The bottom of each slot 22 is provided with a sealing element 23, and the bottom of the mounting frame 21 is provided with a first mounting plate 24 for fixing the sealing element 23.

[0022] Specifically, such as Figure 10and Figure 11 As shown, the sealing member 23, from top to bottom, sequentially includes a first connecting part 231, a fixing part 232, and a second connecting part 233. The first connecting part 231 has a fourth groove 2311, and the fourth groove 2311 has a first protrusion 2312. The upper end of the first protrusion 2312 has a through hole 2313 extending from top to bottom to the bottom of the second connecting part 233. The first protrusion 2312 is connected to the third connector 41 at the bottom of the reagent kit 4. The second connecting part 233 is connected via a connecting... The tube is connected to the first connector 56 at the bottom of the negative pressure gas storage tank 51; the bottom plate of the mounting bracket 21 is provided with a pair of second protrusions 2314, and the first mounting plate 24 is fixed between the pair of second protrusions 2314. The upper end face of the fixing part 232 abuts against the bottom surface of the mounting bracket 21, and the lower end face of the fixing part 232 abuts against the upper end face of the first mounting plate 24. That is, the third connector 41 of the reagent kit 4 is covered in the sealing member 23 to prevent the reagent kit 4 from leaking during the detection process, thereby affecting the detection results.

[0023] In this embodiment, as Figure 5 As shown, the pressing mechanism 3 includes a first base plate 31, a motor 32 disposed on the first base plate 31, a vertical rod 33 disposed on the first base plate 31, and a second mounting plate 34 that moves on the vertical rod 33. The bottom of the second mounting plate 34 is provided with a pressure member 35, which is used to press the reagent kit 4.

[0024] Specifically, such as Figure 2 and Figure 5 As shown, a sleeve 36 is detachably provided on the second mounting plate 34. The sleeve 36 covers the upright 33. That is, when the motor 32 drives the second mounting plate 34 to move, the sleeve 36 moves synchronously with the second mounting plate 34. The sleeve 36 plays the role of reducing friction here. Preferably, lubricating oil can be sprayed on the upright 33 so that lubricating oil is left between the sleeve 36 and the upright 33, which makes it easier for the second mounting plate 34 to move up and down.

[0025] In this embodiment, as Figure 1 As shown, the base 1 is provided with a second base plate 6, and several parallel slide rails 7 are provided between the second base plate 6 and the first base plate 31 in the horizontal direction. One end of the slide rail 7 is installed on the first base plate 31, and the other end of the slide rail 7 is installed on the second base plate 6. The bottom of the mounting bracket 21 is provided with a slider 8 that cooperates with the slide rail 7 to slide.

[0026] Specifically, the slide rail 7 and the slider 8 work together to act as a guide, making it easier for the operator to steadily push the reagent kit 4 to the position to be pressed. At the same time, the mounting bracket 21 is easier to move via the slide rail 7, making it easier for the operator to move the position of the reagent kit 4 to be pressed or to change the position of the reagent kit 4, reducing the number of manual handling steps and effectively saving time and labor costs.

[0027] In this embodiment, as Figure 2 As shown, the mounting bracket 21 has a handrail 9 along the side near the second base plate 6.

[0028] Specifically, the handrail 9 is provided to facilitate pushing the mounting bracket 21 to the position where the reagent kit 4 is pressed or replaced, so that the operator can save more effort.

[0029] In this embodiment, as Figure 2 and Figure 3 As shown, the first base plate 31 is provided with a first magnetic suction member 311, and the outer side of the mounting bracket 21 is provided with a first magnetic block 312 that cooperates with the first magnetic suction member 311; the second base plate 6 is provided with a second magnetic suction member 61 along the side close to the slide rail 7, and the bottom of the mounting bracket 21 is provided with a second magnetic block 62 that cooperates with the second magnetic suction member 61 along the direction close to the handrail 9.

[0030] Specifically, before testing, the operator pulls the mounting bracket 21 to one side of the second base plate 6. The second magnetic block 62 at the bottom of the mounting bracket 21 automatically engages with the second magnetic suction member 61. At this time, one side of the mounting bracket 21 is fixed on the second base plate 6. The purpose of this is to prevent the mounting bracket 21 from moving on the slide rail 7, so that the operator can easily put the reagent kit 4 into the slot 22. After the reagent kit 4 is put into the slot 22, the operator holds the handle 9 and pushes the mounting bracket 21 to one side of the first base plate 31. The first magnetic block 312 on the outside of the mounting bracket 21 automatically engages with the first magnetic suction member 311. At this time, the outside of the mounting bracket 21 is fixed on the first magnetic suction member 311. The purpose of this is to prevent the mounting bracket 21 from moving on the slide rail 7, so that the pressure member 35 presses the reagent kit 4 into place.

[0031] In this embodiment, as Figure 1 and Figure 3 As shown, the first base plate 31 and the second base plate 6 are respectively provided with a first limiting member 10 and a second limiting member 11. The second limiting member 11 is respectively provided with a first groove 12 for fixing one end of the slide rail 7 and a second groove 13 for installing the second magnetic suction member 61. The other end of the slide rail 7 is fixed on the first limiting member 10.

[0032] Specifically, when the second magnetic block 62 at the bottom of the mounting bracket 21 automatically engages with the second magnetic suction member 61, the second limiting member 11 abuts against the slider 8 at the bottom of the mounting bracket 21 to prevent the mounting bracket 21 from falling off the slide rail 7 due to operator error, thus ensuring the operator's personal safety. Prior to this, the first magnetic suction member 311 on the first base plate 31 is detachable. The function of the first limiting member 10 is to prevent the mounting bracket 21 from shifting due to operator error when replacing the first magnetic suction member 311, which could lead to the mounting bracket 21 falling off the slide rail 7 or damaging the upright 33. In other words, both the first limiting member 10 and the second limiting member 11 play a safety protection role.

[0033] In this embodiment, as Figure 5-7 As shown, the pressure member 35 includes a mounting block 351 disposed at the bottom of the second mounting plate 34, a protruding plate 352 extending circumferentially from the outside to the inside at the bottom of the mounting block 351, and a pressure head 353 disposed on the protruding plate 352; the pressure head 353 is provided with a third groove 354, the mounting block 351 is provided with a protruding strip 355 inside, the protruding strip 355 is provided with a spring 356 in the direction from top to bottom, and the protruding plate 352 can abut against the pressure head 353.

[0034] Specifically, when the pressure component 35 is not performing work, the convex plate 352 abuts against the pressure head 353, and at this time, the spring 356 does not abut against the upper surface of the third groove 354; during the process of the motor 32 driving the second mounting plate 34 to move downward, the pressure head 353 first abuts against the upper surface of the reagent kit 4, at which time the pressure head 353 moves upward relative to the convex plate 352, that is, at this time the spring 356 does not abut against the upper surface of the third groove 354 in the pressure head 353; when the spring 356 abuts against the upper surface of the third groove 354 in the pressure head 353... When the upper surface of 354 comes into contact with the second mounting plate 34, the second mounting plate 34 continues to move downward. At this time, the pressure head 353 comes into contact with the protrusion 352, that is, the spring 356 comes into contact with the upper surface of the third groove 354 and deforms, causing the pressure head 353 to move downward, so that the pressure head 353 presses the reagent kit 4 to complete the pressing work. The spring 356 is set in the pressure head 353 to ensure that the pressure is gradually applied during the pressing process of the pressure member 35, effectively avoiding damage to the reagent kit 4 during the pressing process.

[0035] In this embodiment, as Figure 1-4 As shown, the pressure-reducing mechanism 5 includes a negative pressure gas storage tank 51, an air pump 52, a pressure relief valve 53, and a control main board 54. The control main board 54 is equipped with a pressure sensor 55. The bottom of the negative pressure gas storage tank 51 is equipped with a plurality of first connectors 56, which are respectively connected to the reagent kit 4, the pressure sensor 55, and the pressure relief valve 53. The top of the negative pressure gas storage tank 51 is equipped with a second connector 57, which is connected to the air pump 52.

[0036] Specifically, the pressure-drawing mechanism 5 is equipped with several connecting pipes (not shown in the figure), preferably, such as Figure 1 and Figure 4 As shown, the depressurization mechanism 5 includes two negative pressure gas storage tanks 51. Each negative pressure gas storage tank 51 has multiple first connectors 56. Two adjacent first connectors 56 in the two negative pressure gas storage tanks 51 are connected to each other through connecting pipes to ensure that the internal pressure of the two negative pressure gas storage tanks 51 is consistent. The first connector 56 of any one negative pressure gas storage tank 51 is connected to a pressure sensor 55 through a connecting pipe to monitor the real-time pressure inside the negative pressure gas storage tank 51. The first connector 56 of the other negative pressure gas storage tank 51 is connected to a pressure relief valve 53 through a connecting pipe to depressurize the two negative pressure gas storage tanks 51 after the test is completed. The remaining first connectors 56 in the two negative pressure gas storage tanks 51 are connected to the second connection part 233 of the sealing member 23. The second connectors 57 at the top of the two negative pressure gas storage tanks 51 are connected to an air pump 52 for negative pressure extraction of the reagent kit 4 during operation.

[0037] In this embodiment, the reagent kit 4 has a third connector 41 at the bottom, and the reagent kit 4 has a first cavity 42, a second cavity 43 and a microporous structure 44 inside, with the microporous structure 44 disposed between the first cavity 42 and the second cavity 43.

[0038] Specifically, such as Figure 8-9 As shown, a microporous structure 44 is provided between the first cavity 42 and the second cavity 43 for Coulter counting. The reagent kit 4 is equipped with a microporous sheet 45 during the production process. The microporous sheet 45 cooperates with the microporous structure 44. The purpose of this application is to test the airtightness of the microporous sheet 45.

[0039] Working principle: First, the operator pulls the mounting bracket 21 to one side of the second base plate 6 until the second magnetic block 62 at the bottom of the mounting bracket 21 automatically engages with the second magnetic suction member 61. After placing multiple reagent kits 4 into the slot 22, the operator pushes the mounting bracket 21 to one side of the first base plate 31 until the first magnetic block 312 on the outside of the mounting bracket 21 automatically engages with the first magnetic suction member 311. Second, the operator operates the clamping mechanism 3, and the clamping head 353, driven by the motor 32, moves downward to clamp the multiple reagent kits 4. Third, the control main board 54 controls the air pump 52 to start working, evacuating the negative pressure storage tank 51. At this time, the air pressure sensor 55 monitors the pressure inside the negative pressure storage tank 51 in real time. When the pressure inside the negative pressure storage tank 51 reaches the preset pressure value, the control main board 54 activates the air pump 52. The control board 54 stops the air pump 52 from pumping air. Next, the timer (not shown in the figure) on the control board 54 starts timing according to the preset time. After the preset time is reached, the pressure value in the negative pressure storage tank 51 is read. If the pressure value read is within the qualified range, this batch of reagent kits 4 is qualified. Next, the operator operates the clamping mechanism 3 again. The pressure head 353 moves upward under the drive of the motor 32 and disengages from the reagent kit 4. At the same time, the pressure relief valve 53 starts to work, restoring the pressure in the negative pressure storage tank 51 to normal pressure. Finally, the operator pulls the mounting bracket 21 to one side of the second base plate 6 until the second magnetic block 62 at the bottom of the mounting bracket 21 automatically engages with the second magnetic suction piece 61. The next batch of reagent kits 4 to be tested is replaced, and the above steps are repeated.

[0040] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the core ideas of this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An airtightness testing device for a reagent kit, characterized in that, Includes a base (1), on which a testing mechanism (2) is provided, a clamping mechanism (3) cooperating with the testing mechanism (2), and a suction mechanism (5) for negative pressure extraction of the reagent kit (4). The reagent kit (4) is placed inside the testing mechanism (2), and the clamping mechanism (3) clamps the reagent kit (4).

2. The airtightness detection device for a reagent kit according to claim 1, characterized in that, The testing mechanism (2) includes a mounting frame (21), which has multiple slots (22) for placing the reagent kit (4). The bottom of the slots (22) is provided with a sealing element (23), and the bottom of the mounting frame (21) is provided with a first mounting plate (24) for fixing the sealing element (23).

3. The airtightness detection device for a reagent kit according to claim 2, characterized in that, The pressing mechanism (3) includes a first base plate (31), a motor (32) disposed on the first base plate (31), a vertical rod (33) disposed on the first base plate (31), and a second mounting plate (34) that moves on the vertical rod (33). The bottom of the second mounting plate (34) is provided with a pressure member (35), which is used to press the reagent kit (4).

4. The airtightness detection device for a reagent kit according to claim 3, characterized in that, The base (1) is provided with a second base plate (6), and several parallel slide rails (7) are provided between the second base plate (6) and the first base plate (31) in the horizontal direction. One end of the slide rail (7) is installed on the first base plate (31), and the other end of the slide rail (7) is installed on the second base plate (6). The bottom of the mounting bracket (21) is provided with a slider (8) that cooperates with the slide rail (7) to slide.

5. The airtightness detection device for a reagent kit according to claim 4, characterized in that, The mounting bracket (21) has a handrail (9) on the side near the second base plate (6).

6. The airtightness detection device for a reagent kit according to claim 5, characterized in that, The first base plate (31) is provided with a first magnetic suction member (311), and the outer side of the mounting bracket (21) is provided with a first magnetic block (312) that cooperates with the first magnetic suction member (311); the second base plate (6) is provided with a second magnetic suction member (61) along the side close to the slide rail (7), and the bottom of the mounting bracket (21) is provided with a second magnetic block (62) that cooperates with the second magnetic suction member (61) along the direction close to the handrail (9).

7. The airtightness detection device for a reagent kit according to claim 6, characterized in that, The first base plate (31) and the second base plate (6) are respectively provided with a first limiting member (10) and a second limiting member (11). The second limiting member (11) is provided with a first groove (12) for fixing one end of the slide rail (7) and a second groove (13) for installing the second magnetic suction member (61). The other end of the slide rail (7) is fixed on the first limiting member (10).

8. The airtightness detection device for a reagent kit according to claim 3, characterized in that, The pressure member (35) includes a mounting block (351) disposed at the bottom of the second mounting plate (34), a protruding plate (352) extending circumferentially from the outside to the inside at the bottom of the mounting block (351), and a pressure head (353) disposed on the protruding plate (352); the pressure head (353) is provided with a third groove (354), the mounting block (351) is provided with a protruding strip (355) inside, the protruding strip (355) is provided with a spring (356) in the direction from top to bottom, and the protruding plate (352) can abut against the pressure head (353).

9. The airtightness detection device for a reagent kit according to claim 1, characterized in that, The pressure-reducing mechanism (5) includes a negative pressure gas storage tank (51), an air pump (52), a pressure relief valve (53), and a control main board (54). The control main board (54) is equipped with a pressure sensor (55). The bottom of the negative pressure gas storage tank (51) is equipped with multiple first connectors (56). The first connectors (56) are respectively connected to the reagent kit (4), the pressure sensor (55), and the pressure relief valve (53). The top of the negative pressure gas storage tank (51) is equipped with a second connector (57), which is connected to the air pump (52).

10. The airtightness detection device for a reagent kit according to claim 1, characterized in that, The reagent kit (4) has a third connector (41) at the bottom. The reagent kit (4) has a first cavity (42), a second cavity (43) and a microporous structure (44) inside. The microporous structure (44) is disposed between the first cavity (42) and the second cavity (43).

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