A counting plate pushing device and a sample analyzer

Abstract

The utility model provides a kind of counting plate pushing device and a kind of sample analyzer, belong to medical instrument field, to solve the problem that the normal use of analyzer can be ensured in prior art by frequently replacing counting plate box;By being provided with at least two for accommodating counting plate accommodating cavities that are arranged along first direction interval on counting plate box, and counting plate is taken out from accommodating cavity by counting plate pushing mechanism when using, and after counting plate in the accommodating cavity is taken out completely, counting plate box pushing mechanism promotes counting plate box movement, so that counting plate pushing mechanism can push out counting plate in remaining accommodating cavity;So when using, without frequently replacing counting plate box, the normal use of analyzer can be ensured, reduce the work burden of operator, improve its overall work efficiency;Reduce the risk that equipment is damaged or counting plate is contaminated due to human operation failure, in addition, the use cost of analyzer can also be reduced.

Description

Technical Field

[0001] This utility model belongs to the field of medical devices, and in particular relates to a counting plate pushing device and a sample analyzer. Background Technology

[0002] In the field of in vitro diagnostic equipment, urine analyzers are widely used and crucial instruments, undertaking the key task of accurate detection and analysis of urine samples, providing indispensable data support for clinical diagnosis. Throughout the entire process of urine sample testing by a urine analyzer, the counting plate plays a critical role. A counting plate is a special component specifically designed to hold the urine sample and reagent mixture for subsequent accurate detection and analysis. It is placed in batches and systematically into its corresponding positions on the urine analyzer via a counting plate holder. This design greatly improves testing efficiency and can meet the needs of large-scale sample testing. The urine analyzer is equipped with a corresponding pushing mechanism that removes one counting plate from the counting plate holder each time and delivers it to the testing area for subsequent testing operations, ensuring a smooth testing process.

[0003] In related technologies, the counting plate holder has only one cavity. Therefore, frequent replacement of the counting plate holder is necessary to ensure the normal operation of the analyzer. This frequent replacement not only significantly increases the workload of operators, causing them to spend a lot of time and energy on cumbersome replacement procedures and reducing overall work efficiency, but also significantly increases the risk of equipment damage or counting plate contamination due to human error. Furthermore, frequent replacement of the counting plate holder places higher demands on its durability, increasing equipment maintenance costs and replacement frequency, which is detrimental to long-term stable use and cost control. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a counting plate pushing device and a sample analyzer to solve the problem that the counting plate box needs to be frequently replaced in the prior art to ensure the normal use of the analyzer.

[0005] To achieve the above and other related objectives, this utility model provides a counting plate pushing device, comprising: a counting plate box, a mounting bracket, a counting plate box pushing mechanism, and a counting plate pushing mechanism; the counting plate box is provided with at least two receiving cavities arranged at intervals along a first direction for accommodating the counting plate, and the bottom of each receiving cavity is provided with a first opening for the counting plate to pass through; the counting plate box pushing mechanism and the counting plate pushing mechanism are mounted on the mounting bracket, the counting plate box pushing mechanism is used to drive the counting plate box to move along the first direction so that the receiving cavity of the counting plate box faces the counting plate pushing mechanism; the counting plate pushing mechanism is used to remove the counting plate from the receiving cavity through the first opening.

[0006] Optionally, the counting plate box pushing mechanism includes a first guide member and a first fixing member, the first fixing member being disposed at the end of the first guide member along a first direction; the counting plate box includes a first sliding member and a second fixing member, the second fixing member being disposed at the end of the first sliding member along the first direction, the first sliding member being slidably connected to the first guide member in the first direction, and the first fixing member being detachably connected to the second fixing member.

[0007] Optionally, the first fixing member and the second fixing member are magnets, and the first fixing member and the second fixing member have different magnetic properties.

[0008] Optionally, the first guide member includes a T-slot, and the first slider is a T-shaped slider adapted to the T-slot.

[0009] Optionally, the counting plate box pushing mechanism further includes a first driving member, a first transmission assembly, and a second guide member; the first driving member and the second guide member are disposed on the mounting bracket, the first guide member is slidably disposed on the second guide member, and the first driving member drives the first guide member to move along the first direction on the second guide member through the first transmission assembly.

[0010] Optionally, the first transmission assembly includes a first pulley, a second pulley, and a first belt; the first pulley is connected to the first driving member, the second pulley is mounted on the mounting bracket, the first belt is sleeved on the first pulley and the second pulley, and the first guide member is connected to the first belt.

[0011] Optionally, the mounting bracket is provided with a slide rail, the extension direction of which is perpendicular to the first direction; the counting plate pushing mechanism includes a second driving member, a second transmission assembly, a third guide member, and a pusher, the second driving member and the third guide member being provided on the mounting bracket; the pusher is slidably provided on the third guide member; the second driving member drives the pusher to slide on the third guide member through the second transmission assembly, thereby driving the counting plate to slide on the slide rail.

[0012] Optionally, a chute is provided on the slide, and a clearance opening is provided at the bottom of the chute. The width of the clearance opening is smaller than the width of the chute. The pusher portion is located inside the clearance opening, and the part of the pusher extending into the clearance opening or the part of the pusher extending into the chute is used to abut against the counting plate.

[0013] Optionally, each receiving cavity is further provided with a second opening at the bottom for the pusher to pass through. The second opening and the first opening are directly opposite each other. The length of the second opening along the first direction is less than the length of the counting plate along the first direction. The clearance portion extends to the rear of the counting plate box on the side away from the first opening. The pusher includes a first connecting section perpendicular to the horizontal plane, a second connecting section parallel to the horizontal plane, and a clearance section connecting the first connecting section and the second connecting section. The angle between the clearance section and the horizontal plane is not a right angle. The first connecting section is slidably connected to the third guide member, and the second connecting section is used to abut against the counting plate.

[0014] Optionally, the second transmission assembly includes a third pulley, a fourth pulley, and a second belt. The third pulley is connected to the second drive component, the fourth pulley is mounted on a mounting bracket, and the second belt is sleeved on the third and fourth pulleys.

[0015] On the other hand, a sample analyzer is also provided, including a counting plate pushing device as described above, and further including a sample storage device, a reagent storage device, a detection device, and a sample transfer device; the counting plate pushing device is used to push the counting plate onto the detection device, and the sample transfer device is used to transfer the sample stored in the sample storage device and the reagent stored in the reagent storage device to the counting plate so that the detection device can perform detection.

[0016] As described above, the counting plate pushing device and sample analyzer of this utility model have at least the following beneficial effects: by providing at least two receiving cavities for accommodating the counting plates arranged at intervals along a first direction on the counting plate box, and by using a counting plate pushing mechanism to remove the counting plates from the receiving cavities during use, and after all the counting plates in the receiving cavities have been removed, the counting plate box pushing mechanism pushes the counting plate box to move, thereby allowing the counting plate pushing mechanism to push out the counting plates in the remaining receiving cavities; thus, during use, the normal operation of the analyzer can be ensured without frequent replacement of the counting plate box, reducing the workload of the operator and improving their overall work efficiency; reducing the risk of equipment damage or counting plate contamination caused by human error; and also reducing the operating cost of the analyzer. Attached Figure Description

[0017] Figure 1 The diagram shown is a schematic diagram of an angle structure of a counting plate pushing device according to this utility model.

[0018] Figure 2 The diagram shown is a schematic diagram of the counting plate pushing device of this utility model, omitting the counting plate box.

[0019] Figure 3 The diagram shown is an angled structural schematic of a counting plate pushing device of this utility model, omitting the counting plate box, slide, and guide groove.

[0020] Figure 4 The diagram shown is a schematic diagram of the counting plate box of a counting plate pushing device according to this utility model at an angle.

[0021] Figure 5 This is a schematic diagram of the counting board box of a counting board pushing device according to this utility model from another angle.

[0022] Figure 6 The diagram shown is a schematic diagram of the counting plate box of a counting plate pushing device according to this utility model from another angle.

[0023] Figure 7 The diagram shown is a schematic representation of the overall structure of the counting plate in a counting plate pushing device according to this utility model.

[0024] Figure 8 The diagram shows an angled structural diagram of the base plate of the counting plate in a counting plate pushing device according to this utility model.

[0025] Figure 9 The diagram shown is a structural schematic of the cover plate of the counting plate of a counting plate pushing device according to this utility model.

[0026] Figure 10 The diagram shown is a cross-sectional view of the counting plate of a counting plate pushing device according to this utility model.

[0027] Figure 11 Displayed as Figure 7 An enlarged diagram of point A in the diagram.

[0028] Figure 12 This is a schematic diagram of the base plate of the counting plate of a counting plate pushing device according to this utility model from another angle.

[0029] Component designation explanation: 1. Counting plate box; 11. Receiving cavity; 111. First side plate; 112. Second side plate; 113. Bottom plate; 114. Third side plate; 12. First opening; 13. Protruding strip; 14. Connecting strip; 15. First sliding member; 16. Second fixing member; 17. Second opening; 18. Third opening. 2. Mounting bracket, 21. Guide groove, 22. Slide rail, 221. Slide rail, 222. Clearance opening; 3. Counting plate box pushing mechanism, 31. First guide member, 311. T-slot, 32. First fixing member, 33. First driving member, 34. First transmission assembly, 341. First pulley, 342. Second pulley, 343. First belt, 35. Second guide member; 4. Counting plate pushing mechanism; 41. Second driving component; 42. Second transmission assembly; 421. Third pulley; 422. Fourth pulley; 423. Second belt; 43. Third guide component; 44. Push claw; 441. First connecting section; 442. Second connecting section; 443. Clearance section. 5. Counting plate, 51. Base plate, 511. Clearance groove, 5111. First inclined surface, 5112. Third inclined surface, 512. Slot, 5121. Second inclined surface, 513. First limiting groove, 514. Second limiting groove, 515. Mixing groove, 516. Limiting step, 517. Notch, 518. Groove, 52. Cover plate, 521. Claw, 5211. Connecting part, 5212. Protrusion, 522. Limiting strip, 523. Limiting block, 524. Protrusion, 53. Observation area. Detailed Implementation

[0030] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0031] Please refer to all the accompanying drawings below. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0032] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0033] Please see Figure 1-3This utility model provides a counting plate pushing device, including: a counting plate box 1, a mounting bracket 2, a counting plate box pushing mechanism 3, and a counting plate pushing mechanism 4; the counting plate box 1 is provided with at least two receiving cavities 11 arranged at intervals along a first direction a for accommodating counting plates 5, and the bottom of each receiving cavity 11 is provided with a first opening 12 for the counting plate 5 to pass through; the counting plate box pushing mechanism 3 and the counting plate pushing mechanism 4 are mounted on the mounting bracket 2, the counting plate box pushing mechanism 3 is used to drive the counting plate box 1 to move along the first direction a, so that the receiving cavity 11 of the counting plate box 1 faces the counting plate pushing mechanism 4; the counting plate pushing mechanism 4 is used to remove the counting plate 5 from the receiving cavity 11 from the first opening 12. The opening of the first opening 12 faces the second direction b, and the first direction a and the second direction b are perpendicular to each other. The first direction a is... Figure 1 The direction from front to back in the middle, the second direction b is Figure 1 The direction from left to right in the middle.

[0034] At the start of use, the receiving cavity 11 at the end of the counting plate box 1 along the first direction a is positioned directly opposite the counting plate pushing mechanism 4. At this time, the counting plate pushing mechanism 4 can push out one counting plate 5 from the first opening 12 of the receiving cavity 11 each time, according to the needs of the sample analyzer, for easy detection. After the counting plate 5 in the receiving cavity 11 is completely pushed out, the counting plate box pushing mechanism 3 pushes the counting plate box 1 to move along the first direction a, so that another receiving cavity 11 of the counting plate box 1 is positioned directly opposite the counting plate pushing mechanism 4. In this way, the counting plate pushing mechanism 4 can push the counting plate 5 in this receiving cavity 11 for easy detection.

[0035] This embodiment provides at least two receiving cavities 11 arranged at intervals along a first direction a on the counting plate box 1 for accommodating the counting plates 5. In use, the counting plates 5 are removed from the receiving cavities 11 by the counting plate pushing mechanism 4. After all the counting plates 5 in the receiving cavities 11 have been removed, the counting plate box pushing mechanism 3 pushes the counting plate box 1 to move, thereby allowing the counting plate pushing mechanism 4 to push out the remaining counting plates 5 in the receiving cavities 11. In this way, the normal operation of the analyzer can be ensured without frequent replacement of the counting plate box 1, reducing the workload of the operator and improving their overall work efficiency. It also reduces the risk of equipment damage or counting plate contamination caused by human error and reduces the cost of using the analyzer.

[0036] like Figure 4-6As shown, the counting plate box 1 may include a first side plate 111, a second side plate 112, multiple bottom plates 113, and multiple third side plates 114. The first side plate 111 and the second side plate 112 are spaced apart, and the third side plates 114 are connected to the first side plate 111 and the second side plate 112 respectively. The first side plate 111, the second side plate 112, and two adjacent third side plates 114 form a receiving cavity 11. There are at least three third side plates 114, so there are at least two receiving cavities 11, and each receiving cavity 11 can accommodate multiple counting plates 5. Each third side plate 114 has a bottom plate 113 at its bottom, and two adjacent bottom plates 113 are spaced apart. The gap between two adjacent bottom plates 113 is used for the pusher 44 of the counting plate pushing mechanism 4 to pass through, so that the pusher 44 abuts against the counting plate 5 at the bottom of the receiving cavity 11, thereby realizing the operation of removing the counting plate 5 from the counting plate box 1.

[0037] A protruding strip 13 may be provided on any one of the first side plate 111, the second side plate 112, or the third side plate 114. In this embodiment, the protruding strip 13 is provided on the third side plate 114 and located at the connection between the third side plate 114 and the second side plate 112. The protruding strip 13 is integrally formed with the third side plate 114, thereby reducing assembly steps and lowering the manufacturing cost of the counting plate box 1. Figure 7 As shown, the counting plate 5 has a notch 517 corresponding to the protrusion 13. This ensures that the counting plate 5 can be placed into the receiving cavity 11 only when the notch 517 aligns with the protrusion 13, preventing incorrect placement and ensuring that samples and reagents are correctly placed into the technical plate during subsequent use. In this embodiment, the protrusion 13 is a triangular prism structure, the counting plate 5 is a rectangular structure, and the notch 517 is a chamfered structure formed by cutting one corner of the counting plate 5.

[0038] A first opening 12 is formed between the second side plate 112 and the bottom plate 113 for the counting plate 5 to pass through. The height of the first opening 12 is greater than the height of a single counting plate 5 but less than twice the height of a single counting plate 5. That is, the first opening 12 can only allow one counting plate 5 to pass through at a time, which means that the counting plate pushing mechanism 4 can only take a single counting plate 5 out of the counting plate box 1 at a time.

[0039] At least one connecting strip 14 is provided on the side wall of the first side plate 111 away from the third side plate 114. The extension length of the connecting strip 14 in the first direction a is less than or equal to the extension length of the first side plate 111 in the first direction a, and the connecting strip 14 is arranged perpendicular to the third side plate 114. The structural strength of the counting plate box 1 can be increased by providing the connecting strip 14.

[0040] A third opening 18 is provided on the second side plate 112 at the position corresponding to each receiving cavity 11. The third opening 18 communicates with the first opening 12 and the receiving cavity 11, and the width of the third opening 18 along the first direction a is less than the length of the counting plate 5 along the first direction a, thereby ensuring that the counting plate 5 is accommodated in the receiving cavity 11. The setting of the third opening 18 allows the operator to intuitively see the number of counting plates 5 in the counting plate box 1, which is convenient for the operator to use.

[0041] Please see Figure 2 , 5 The counting board box pushing mechanism 3 may include a first guide member 31 and a first fixing member 32. The first fixing member 32 is disposed at the end of the first guide member 31 along the first direction a. The counting board box 1 includes a first sliding member 15 and a second fixing member 16. The first sliding member 15 and the second fixing member 16 are disposed on the side wall of the first side plate 111 away from the second side plate 112. The second fixing member 16 is disposed at the end of the first sliding member 15 along the first direction a. The first sliding member 15 is slidably connected to the first guide member 31 in the first direction a. The first fixing member 32 and the second fixing member 16 are detachably connected, so as to facilitate the user to replace the counting board box 1.

[0042] The first fixing member 32 and the second fixing member 16 can be detachably connected by means of snap-fit ​​or other methods. In this embodiment, the first fixing member 32 and the second fixing member 16 are magnets, and the magnetism of the first fixing member 32 and the second fixing member 16 is different. Thus, the first fixing member 32 and the second fixing member 16 are detachably connected by magnetic adsorption. In use, the operator only needs to pull the counting plate box 1 to separate the first fixing member 32 and the second fixing member 16, improving the operator's work efficiency.

[0043] The first guide member 31 is provided with a T-slot 311, and the first sliding member 15 is a T-shaped slider adapted to the T-slot 311. The T-shaped slider and the T-slot 311 are slidably connected. In this embodiment, by setting the T-slot 311 and the T-shaped slider, the counting plate 5 can only have the degree of freedom to move in the first direction a or in the opposite direction of the first direction a. Then, the degree of freedom of the counting plate 5 to move in the first direction a or in the opposite direction of the first direction a is restricted by magnetic adsorption, so that the counting plate box 1 can be stably fixed on the counting plate box pushing mechanism 3.

[0044] Please see Figure 1-3The counting plate box pushing mechanism 3 also includes a first driving member 33, a first transmission assembly 34, and a second guide member 35. The first driving member 33 can be a motor, and the second guide member 35 can be a slide rail. The first driving member 33 and the second guide member 35 are mounted on the mounting bracket 2. The first guide member 31 can be slidably connected to the second guide member 35 via a slider. The first driving member 33 drives the first guide member 31 to move along the first direction a on the second guide member 35 via the first transmission assembly 34. The first transmission assembly 34 can be a screw drive assembly or other structures. In this embodiment, the first transmission assembly 34 includes a first pulley 341, a second pulley 342, and a first belt 343. The output shafts of the first pulley 341 and the first driving member 33 are coaxially arranged. The second pulley 342 is mounted on the mounting bracket 2. The first belt 343 is sleeved on the first pulley 341 and the second pulley 342. The first guide member 31 is connected to the first belt 343. It is understandable that after all the counting boards 5 in the counting board box 1 have been used, the counting board box pushing mechanism 3 moves the counting board box 1 in the opposite direction to the first direction a, so that the counting board box 1 is reset to the initial position, so that the operator can replace the counting board box 1 and facilitate the next use.

[0045] Please see Figure 1-3 The mounting bracket 2 may be provided with a guide groove 21, which is used to guide the counting plate box 1 to slide in the first direction a. The mounting bracket 2 is also provided with a slide rail 22, which extends perpendicularly to the first direction a, that is, parallel to the second direction b. The counting plate pushing mechanism 4 includes a second driving member 41, a second transmission assembly 42, a third guide member 43, and a pusher 44. The second driving member 41 can be a motor, and the third guide member 43 can be a guide rail. The second driving member 41 and the third guide member 43 are mounted on the mounting bracket 2. The pusher 44 can be slidably connected to the third guide member 43 through a slider. The second driving member 41 drives the pusher 44 to slide on the third guide member 43 through the second transmission assembly 42, so as to drive the counting plate 5 to slide on the slide rail 22.

[0046] Specifically, the slide 22 is provided with a groove 221, and the bottom of the groove 221 may be provided with a clearance opening 222. The width of the clearance opening 222 is smaller than the width of the groove 221 and smaller than the width of the counting plate 5 along the first direction a, so as to ensure that the counting plate 5 is accommodated in the groove 221. The pusher 44 is partially located in the clearance opening 222, and the part of the pusher 44 extending into the clearance opening 222 or the part of the pusher 44 extending into the groove 221 is used to abut against the counting plate 5.

[0047] Please see Figure 7 , 12The counting plate 5 may include a base plate 113 and a cover plate 52. The upper side of the base plate 113 is recessed to form an observation area 53, and the cover plate 52 is detachably connected to the upper side of the base plate 113. The lower side of the base plate 113 is recessed to form a groove 518, and the portion of the pusher 44 that extends into the clearance opening 222 can abut against the groove 518, thereby driving the counting plate 5 to move.

[0048] Please see Figure 5 , 6 In this embodiment, each receiving cavity 11 is also provided with a second opening 17 at the bottom for the pusher 44 to pass through. The second opening 17 is provided on the first side plate 111. The second opening 17 and the first opening 12 are directly opposite each other. The length of the second opening 17 along the first direction a is less than the length of the counting plate 5 along the first direction a, which can ensure that the counting plate 5 will not be transferred out of the receiving cavity 11 from the second opening 17.

[0049] Please see Figure 1 The clearance 222 extends to the rear of the counting plate box 1 on the side away from the first opening 12, that is, it extends to the rear of the first side plate 111 on the side away from the second side plate 112.

[0050] Please see Figure 3 The pusher 44 includes a first connecting section 441 perpendicular to the horizontal plane, a second connecting section 442 parallel to the horizontal plane, and a clearance section 443 connecting the first connecting section 441 and the second connecting section 442. The clearance section 443 forms a non-right angle with the horizontal plane. The first connecting section 441 is slidably connected to the third guide member 43 via a slider. The second connecting section 442 is used to abut against the outer wall of the counting plate 5, thereby enabling the counting plate 5 to move. Furthermore, when the first driving member 33 drives the pusher 44 to move in the opposite direction to the second direction b, the clearance section 443 ensures that the pusher 44 can move to the rear of the counting plate box 1.

[0051] The second transmission assembly 42 can be a lead screw transmission assembly. In this embodiment, the second transmission assembly 42 includes a third pulley 421, a fourth pulley 422, and a second belt 423. The third pulley 421 is connected to the second driving member 41, the fourth pulley 422 is mounted on the mounting bracket 2, and the second belt 423 is sleeved on the third pulley 421 and the fourth pulley 422.

[0052] Please see Figure 7-11The counting plate 5 has clearance grooves 511 on both sides of the observation area 53, which are spaced apart from the observation area 53. A slot 512 is provided on the side of the clearance groove 511 closest to the observation area 53. The cover plate 52 has slots 521 spaced apart for engaging with the slots 512. A notch 517 is provided on the base plate 113. Through the action of the slots 512 and the slots 521, the base plate 113 and the cover plate 52 are securely connected together, avoiding the use of glue to fix them. This prevents the glue from failing due to fluctuations in ambient temperature or humidity, or from flowing into the observation area 53 during assembly.

[0053] The upper part of the side of the clearance groove 511 near the observation area 53 is a first inclined surface 5111, which faces the cover plate 52. The upper side of the slot 512 is a second inclined surface 5121, which faces the bottom of the clearance groove 511. The connection between the first inclined surface 5111 and the second inclined surface 5121 is smoothly transitioned. The claw 521 includes a connecting part 5211 and a protrusion 5212. The connecting part 5211 is used to connect with the bottom surface of the cover plate 52, and the protrusion 5212 protrudes from the connecting part 5211. The upper and lower sides of the protrusion 5212 are both inclined surfaces, and the connection between the two inclined surfaces is smoothly transitioned. During installation, the first inclined surface 5111 and the lower side of the protrusion 5212 abut against each other to achieve a guiding function. After installation, since the second inclined surface 5121 and the upper side of the protrusion 5212 are inclined, the contact area of ​​the claw 521 and the slot 512 can be increased, ensuring the stable connection between the base plate 113 and the cover plate 52.

[0054] Each clearance groove 511 is further provided with a first limiting groove 513 between itself and the observation area 53. Limiting strips 522, which mate with the first limiting grooves 513, are spaced apart on the cover plate 52. The limiting strips 522 and the first limiting grooves 513 can be in clearance fit, meaning the width of the limiting strip 522 is less than the width of the first limiting groove 513. The structure between the first clearance grooves 511 and the first limiting grooves 513 is defined as a snap-fit. When the cover plate 52 and the base plate 113 are connected, the lower side of the protrusion 5212 first abuts against the first inclined surface. At this time, the snap-fit ​​undergoes elastic deformation and tends to rotate clockwise as shown in the figure. After the claws 521 and the first limiting grooves 513 are snapped together, due to the setting of the limiting strips 522, the limiting strips 522 can cause the snap-fit ​​to rotate counterclockwise and reset. In addition, in scenarios such as transportation, if the cover plate 52 is subjected to an upward force, the latching component tends to rotate clockwise. At this time, due to the setting of the limiting strip 522, the limiting strip 522 will abut against the latching component, thereby restricting the rotation of the latching component. This can maintain the connection between the cover plate 52 and the base plate 113 and prevent the cover plate 52 from separating from the base plate 113.

[0055] A second limiting groove 514 is also provided on the upper side of the base plate 113, and an avoidance groove 511 is located between the first limiting groove 513 and the second limiting groove 514. A limiting block 523 for connecting with the second limiting groove 514 is provided on one side of the cover plate 52, and the limiting block 523 is integrally formed with the cover plate 52. The limiting block 523 and the second limiting groove 514 limit the extension direction of the cover plate 52 in the first limiting groove 513, ensuring that the cover plate 52 can be firmly fixed on the base plate 113.

[0056] Each clearance groove 511 has at least a third inclined surface 5112 on the side away from the observation area 53. The inclined surface of the third inclined surface 5112 is set towards the cover plate 52, thereby increasing the groove width at the opening of the clearance groove 511 to facilitate the connection between the claw 521 and the groove 512.

[0057] A mixing tank 515 may also be provided on the base plate 113. The mixing tank 515 is spaced apart from the observation area 53 and is used to mix liquids. Specifically, the sample transfer device can discharge the sample and reagents into the mixing tank 515 for mixing. After mixing is completed, the mixture is transferred to the observation area 53 for detection by the detection device.

[0058] The lower side of the cover plate 52 is also provided with a plurality of protrusions 524. The protrusions 524 are used to abut against the observation area 53 to support the cover plate 52 on the base plate 113, and no protrusions 524 are provided at the center of the cover plate 52; that is, the plurality of protrusions 524 of the cover plate 52 form a circle or a square to avoid the protrusions 524 interfering with the detection device's detection of the observation area 53.

[0059] Limiting steps 516 are provided on opposite sides of the base plate 113. During use, the detection device can abut against the limiting steps 516 to fix the counting plate 5.

[0060] On the other hand, a sample analyzer is also provided, including a counting plate 5 pushing device as described above, a base, and a sample storage device, a reagent storage device, a detection device and a sample transfer device disposed on the base; One end of the slide 22 corresponds to the counting plate box 1, and the other end corresponds to the detection device. A sample addition position can be provided on the slide 22. In use, the counting plate 5 pushing device first pushes the counting plate 5 to the sample addition position. After the sample transfer device transfers the sample stored in the sample storage device and the reagent stored in the reagent storage device to the mixing tank 515 of the counting plate 5 for mixing, and then transfers it to the observation area 53, the counting plate 5 pusher 44 device then pushes the counting plate 5 into the detection device so that the detection device can perform detection.

[0061] In summary, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0062] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A counting plate pushing device, characterized in that, include: Counting plate box, mounting bracket, counting plate box pushing mechanism, and counting plate pushing mechanism; The counting plate box is provided with at least two receiving cavities arranged at intervals along a first direction for accommodating the counting plate, and the bottom of each receiving cavity is provided with a first opening for the counting plate to pass through. The counting plate box pushing mechanism and the counting plate pushing mechanism are mounted on the mounting bracket. The counting plate box pushing mechanism is used to drive the counting plate box to move along the first direction so that the receiving cavity of the counting plate box is facing the counting plate pushing mechanism. The counting plate pushing mechanism is used to remove the counting plate from the receiving cavity through the first opening.

2. The counting plate pushing device according to claim 1, characterized in that: The counting plate box pushing mechanism includes a first guide and a first fixing member, wherein the first fixing member is disposed at the end of the first guide along a first direction; The counting plate box includes a first sliding member and a second fixing member. The second fixing member is disposed at the end of the first sliding member along a first direction. The first sliding member is slidably connected to the first guide member in the first direction. The first fixing member and the second fixing member are detachably connected.

3. The counting plate pushing device according to claim 2, characterized in that: The first fixing member and the second fixing member are both magnets, and the first fixing member and the second fixing member have different magnetic properties; And / or, the first guide member is provided with a T-slot, and the first slider is a T-shaped slider adapted to the T-slot.

4. A counting plate pushing device according to claim 2, characterized in that: The counting plate box pushing mechanism further includes a first driving component, a first transmission assembly, and a second guide component; The first driving member and the second guide member are disposed on the mounting bracket. The first guide member is slidably disposed on the second guide member. The first driving member drives the first guide member to move along the first direction on the second guide member through the first transmission assembly.

5. A counting plate pushing device according to claim 4, characterized in that: The first transmission assembly includes a first pulley, a second pulley, and a first belt; The first pulley is connected to the first drive member, the second pulley is disposed on the mounting bracket, the first belt is sleeved on the first pulley and the second pulley, and the first guide member is connected to the first belt.

6. The counting plate pushing device according to claim 1, characterized in that: The mounting bracket is provided with a slide rail, and the extension direction of the slide rail is perpendicular to the first direction; The counting plate pushing mechanism includes a second driving member, a second transmission assembly, a third guide member, and a pusher, wherein the second driving member and the third guide member are disposed on the mounting bracket; The pusher is slidably mounted on the third guide member; The second driving member drives the pusher to slide on the third guide member through the second transmission assembly, thereby driving the counting plate to slide on the slide rail.

7. A counting plate pushing device according to claim 6, characterized in that: The slide rail is provided with a chute, and the bottom of the chute is provided with an clearance opening, the width of which is smaller than the width of the chute. The pusher portion is located inside the clearance opening, and the portion of the pusher extending into the clearance opening or the portion of the pusher extending into the slide groove is used to abut against the counting plate.

8. A counting plate pushing device according to claim 7, characterized in that: The bottom of each of the receiving cavities is also provided with a second opening for the pusher to pass through, the second opening and the first opening are directly opposite each other, and the length of the second opening along the first direction is less than the length of the counting plate along the first direction; The clearance portion extends to the rear of the counting plate box on the side away from the first opening; The pusher includes a first connecting section perpendicular to the horizontal plane, a second connecting section parallel to the horizontal plane, and a clearance section connecting the first and second connecting sections. The clearance section forms a non-right angle with the horizontal plane. The first connecting section is slidably connected to the third guide member, and the second connecting section is used to abut against the counting plate.

9. A counting plate pushing device according to claim 6, characterized in that: The second transmission assembly includes a third pulley, a fourth pulley, and a second belt. The third pulley is connected to the second drive component, the fourth pulley is mounted on the mounting bracket, and the second belt is sleeved on the third pulley and the fourth pulley.

10. A sample analyzer, characterized in that, The counting plate pushing device as described in any one of claims 1-9 further includes a sample storage device, a reagent storage device, a detection device, and a sample transfer device; The counting plate pushing device is used to push the counting plate onto the detection device, and the sample transfer device is used to transfer the sample stored in the sample storage device and the reagent stored in the reagent storage device to the counting plate so that the detection device can perform detection.

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