A dry sheet pushing-out device and a dry biochemical analyzer

Abstract

The utility model discloses a dry piece pushes out device and dry biochemical analysis appearance, dry piece pushes out device is used for pushing out the dry piece in the exhibition board incubation tray, include: base, set up one drive mechanism on the base and the drive of two sliding mechanisms under the drive mechanism drive horizontal sliding to opposite direction, two sliding mechanisms are used for pushing out the dry piece of upper layer exhibition board incubation tray and lower layer exhibition board incubation tray respectively, the sliding mechanism includes the push plate sliding in horizontal direction, and the push plate extends to the incubation position of exhibition board incubation tray along with the sliding of sliding mechanism. The utility model discloses utilize one drive mechanism to control two sliding mechanisms horizontal sliding, when one of sliding mechanisms horizontal sliding is horizontal to the horizontal sliding of forward direction, another sliding mechanism horizontal sliding is towards the backward direction, until the target dry piece is pushed out. The scheme simple structure, reduce the number of drive mechanism, can reduce the occupation of space, is favorable to the miniaturization of instrument.

Description

Technical Field

[0001] This utility model belongs to the field of in vitro diagnostic instrument technology, specifically relating to a dry slide ejection device and a dry biochemical analyzer. Background Technology

[0002] Dry biochemical analyzers are typically equipped with an incubation tray for incubating and testing dry slides. The incubation tray has multiple incubation positions. After the dry slide is tested, the dry slide ejection component is used to eject the dry slide from the incubation position to make room for subsequent dry slides.

[0003] To accommodate more dried slides, the display panel incubation tray has two layers, each corresponding to a separate dried slide ejection assembly. Existing dry slide ejection assemblies include a drive mechanism and a push rod. The drive mechanism comprises a drive motor, a drive wheel, a lead screw, a driven wheel, and a belt. The drive wheel is connected to the output of the drive motor. The belt is wound around the outside of the drive wheel and the driven wheel. The driven wheel is located at one end of the lead screw. The drive motor drives the lead screw to rotate under the transmission of the belt. The push rod is parallel to the lead screw and extends and retracts under the drive of the lead screw to eject the dried slides located in the incubation position. However, for a two-layer display panel incubation tray, two sets of the above-mentioned dry slide ejection assemblies are required, each equipped with an independent drive mechanism, which occupies a large space and is not conducive to the miniaturization of the instrument. Utility Model Content

[0004] This utility model discloses a dry slide ejection device and a dry biochemical analyzer to solve the problem of large space occupation in the prior art.

[0005] A first aspect of this utility model provides a dry sheet ejection device for ejecting dry sheets from a display plate incubation tray. The display plate incubation tray includes an upper display plate incubation tray and a lower display plate incubation tray stacked on top of each other. Each display plate incubation tray has multiple incubation positions for placing dry sheets. The dry sheet ejection device includes: a base, a driving mechanism disposed on the base, and two sliding mechanisms that slide horizontally in opposite directions under the drive of the driving mechanism. The two sliding mechanisms are respectively used to eject the dry sheets from the upper display plate incubation tray and the lower display plate incubation tray. The sliding mechanism includes a push plate that slides horizontally and extends to the incubation position of the display plate incubation tray as the sliding mechanism slides.

[0006] Optionally, the drive mechanism includes: a motor mounting base disposed on the base, a drive motor fixed on the motor mounting base, a drive gear connected to the output end of the drive motor, a reversing gear meshing with the drive gear, and two scrap gears meshing with the reversing gear. The scrap gears mesh with the push plate, and the push plate moves horizontally under the drive of the scrap gears.

[0007] Optionally, the sliding mechanism further includes: a push plate guide rail fixed on the base, a push plate slider slidably disposed on the push plate guide rail, and a slider seat fixed on the push plate slider, wherein the slider seat is used to mount the push plate.

[0008] Optionally, the base is further provided with a motor guide rail and a motor slider slidably disposed on the motor guide rail. The motor slider is used to mount the drive mechanism so that the drive mechanism can slide along the motor guide rail.

[0009] Optionally, a limiting member is provided at one end of the push plate. When the push plate slides away from the incubation position until it abuts against the limiting member, the drive mechanism moves along the motor guide rail towards the incubation position along with the motor slider.

[0010] Optionally, the limiting member has a buffer pad on the side near the push plate.

[0011] Optionally, the push plate includes a toothed surface and a toothless surface, the toothed surface of the push plate meshing with the waste card gear, and a guide wheel is provided on the motor mounting base, the guide wheel being attached to the toothless surface of the push plate.

[0012] Optionally, the back of the base is provided with a guide rod and an elastic element sleeved on the guide rod. The base is provided with a guide hole. A follower is fixedly connected to the motor mounting base. The follower passes through the guide hole and is slidably connected to the guide rod. The elastic element is used to provide elastic force when the motor mounting base slides horizontally with the motor slider.

[0013] A second aspect of this utility model provides a dry biochemical analyzer, including a dry slide ejection device provided in any implementation of the first aspect.

[0014] In the dry film ejection device provided by this utility model, a driving mechanism controls two sliding mechanisms to slide horizontally. While one sliding mechanism slides horizontally in the forward direction, the other sliding mechanism slides horizontally in the backward direction until the target dry film is ejected. Therefore, the solution provided in this embodiment has a simple structure, reduces the number of driving mechanisms, and reduces space occupation, which is beneficial for instrument miniaturization, thus solving the problem of large space occupation in existing technologies. Attached Figure Description

[0015] Figure 1 This is a schematic diagram showing the positional relationship between the dry slice ejection device and the display plate incubation tray provided in this embodiment;

[0016] Figure 2 This is a schematic diagram of the dry film ejection device provided in this embodiment;

[0017] Figure 3 This is a disassembled structural diagram of the dry film ejection device provided in this embodiment;

[0018] Figure 4 This is a schematic diagram of the drive mechanism provided in this embodiment;

[0019] Figure 5 This is a partial structural diagram of the dry film ejection device provided in this embodiment.

[0020] Reference numerals: 1-Dry sheet ejection device; 2-Incubation tray for display board; 21-Upper display board incubation tray; 22-Lower display board incubation tray; 201-Incubation position; 11-Base; 12-Drive mechanism; 13-Sliding mechanism; 121-Motor mounting base; 122-Drive motor; 123-Drive gear; 124-Reversing gear; 125-Scrap gear; 131-Push plate; 132-Push plate guide rail; 133-Push plate slider; 134-Slider seat; 111-Motor guide rail; 112-Motor slider; 113-Limiting component; 114-Guide rod; 115-Elastic component; 116-Guide hole; 1131-Isolation pad; 1211-Guide wheel; 1212-Follower component; 1311-Toothed surface; 1312-Needle surface. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Reference Figure 1 The schematic diagram shown illustrates that this embodiment provides a dry sheet ejection device 1 for ejecting dry sheets from a display plate incubation tray 2. The display plate incubation tray 2 includes an upper display plate incubation tray 21 and a lower display plate incubation tray 22 stacked together. Each display plate incubation tray is provided with multiple incubation positions 201, which are used to place dry sheets. Each incubation position is provided with a slit for storing dry sheets.

[0023] Reference Figure 2 The schematic diagram shows that the dry sheet ejection device 1 includes: a base 11, a driving mechanism 12 disposed on the base 11, and two sliding mechanisms 13 that slide horizontally in opposite directions under the drive of the driving mechanism 12. The two sliding mechanisms 13 are respectively used to eject the dry sheets from the upper display plate incubation tray 21 and the lower display plate incubation tray 22. The sliding mechanism 13 includes a push plate 131 that slides horizontally. The push plate 131 extends to the incubation position 201 of the display plate incubation tray as the sliding mechanism 13 slides.

[0024] In this embodiment, the display plate incubation tray 2 can rotate around an axis. The upper display plate incubation tray 21 and the lower display plate incubation tray 22 are each provided with an independent driving component, which is used to drive the upper display plate incubation tray 21 and the lower display plate incubation tray 22 to rotate around the axis, respectively. During the rotation of the display plate incubation tray 2 around the axis, the dry sheet ejection device 1 is in the initial position, that is, the push plate 131 will not obstruct the rotation of the display plate incubation tray 2. This embodiment is provided with a control device. When the dry sheet in the display plate incubation tray 2 needs to be ejected after detection, the control device controls the driving component to drive the display plate incubation tray 2 to rotate until the target dry sheet rotates to the position corresponding to the dry sheet ejection component. Then, the control device controls the driving mechanism to drive the corresponding sliding mechanism to slide horizontally according to whether the target dry sheet is in the upper display plate incubation tray 21 or the lower display plate incubation tray 22.

[0025] In this embodiment, the direction in which the sliding mechanism moves toward the target dry sheet is taken as the forward direction, and vice versa, the backward direction. This embodiment uses one drive mechanism to control the horizontal sliding of two sliding mechanisms. While one sliding mechanism slides horizontally in the forward direction, the other sliding mechanism slides horizontally in the backward direction until the target dry sheet is ejected. Therefore, the solution provided in this embodiment has a simple structure, reduces the number of drive mechanisms, reduces space occupation, facilitates instrument miniaturization, and saves costs.

[0026] Furthermore, the pusher plate 131 has a flat strip structure, which allows it to extend to the incubation position 201.

[0027] Reference Figure 2 and Figure 3 The schematic diagram shows that the drive mechanism 12 includes: a motor mounting base 121 disposed on the base 11, a drive motor 122 fixed on the motor mounting base 121, a drive gear 123 connected to the output end of the drive motor 121, a reversing gear 124 meshing with the drive gear 123, and two scrap gears 125 meshing with the reversing gear 124. The scrap gears 125 mesh with the push plate 131, and the push plate 131 moves horizontally under the drive of the scrap gears 125.

[0028] The main function of the reversing gear 124 is to adjust the stroke and center distance, so that the dry plate can be ejected with a smaller stroke.

[0029] Reference Figure 4The schematic diagram shows that the motor mounting base 121 includes a motor mounting surface and a gear mounting surface arranged opposite each other. The motor mounting surface is the side away from the base 11 and is used to mount the drive motor 122. The gear mounting surface is the side close to the base 11 and is used to mount the reversing gear 124 and two scrap gears 125. The drive gear 123 is fixed to the output shaft of the drive motor 122 and rotates under the drive of the drive motor 122. Two sliding mechanisms are symmetrically arranged on the upper and lower sides of the drive gear 123, and the push plate 131 meshes with the scrap gear 125 on the side close to the scrap gear 125.

[0030] Reference Figure 3 The schematic diagram shows that the sliding mechanism 13 further includes: a push plate guide rail 132 fixed on the base 11, a push plate slider 133 slidably disposed on the push plate guide rail 132, and a slider seat 134 fixed on the push plate slider 133, wherein the slider seat 134 is used to mount the push plate 131.

[0031] The base 11 is also provided with a motor guide rail 111 and a motor slider 112 slidably disposed on the motor guide rail 111. The motor slider 112 is used to install the drive mechanism 12 so that the drive mechanism 12 can slide along the motor guide rail 111.

[0032] In this embodiment, the two sliding mechanisms 13 slide horizontally in opposite directions under the drive of the same driving mechanism 12. In one possible implementation, if the driving mechanism 12 is in a fixed position, under the drive of the driving mechanism 12, one sliding mechanism moves towards the incubation position and the other sliding mechanism moves away from the incubation position. If one sliding mechanism reaches the incubation position and pushes out the target dry sheet, it is at the limit position of horizontal sliding. Then the other sliding mechanism will also reach the limit position in the opposite direction to the aforementioned sliding mechanism. In this case, sufficient space needs to be provided for the other sliding mechanism to slide.

[0033] To reduce space usage and achieve instrument miniaturization, this embodiment provides a limiting member 113 at one end of the push plate 131. When the push plate 131 slides away from the incubation position until it contacts the limiting member 113, the drive mechanism 12 moves along the motor guide rail 111 towards the incubation position along with the motor slider 112. In this embodiment, the limiting member 113 is fixed to the base 11.

[0034] To prevent impact when the push plate 131 runs into contact with the limiting member 113, this embodiment provides a buffer pad 1131 on the side of the limiting member 113 near the push plate 131.

[0035] Furthermore, the push plate 131 includes a toothed surface 1311 and a toothless surface 1312. The toothed surface 1311 of the push plate 131 meshes with the waste card gear 125. A guide wheel 1211 is provided on the motor mounting base 121. The guide wheel 1211 is attached to the toothless surface 1312 of the push plate 131 to increase the rigidity of the push plate.

[0036] The following describes the working process of the dry film ejection device provided in this embodiment: Refer to Figure 3 The schematic diagram shows that when the drive motor 122 drives the drive gear 123 to rotate clockwise, the two waste card gears 125 also rotate clockwise. The upper push plate is located above the upper waste card gear, and its tangent rotation direction is to the right (as shown in the diagram). Therefore, the upper push plate retracts, and the lower push plate is located below the lower waste card gear, and its tangent rotation direction is to the left (as shown in the diagram). Therefore, the lower push plate moves forward. This configuration can be used for pushing out the dried sheets from the lower display plate incubation tray. As the upper push plate retracts, one end of the push plate contacts the limiting member 113, and the gear push plate stops retracting. At this time, the dried sheet pushing action is still in progress, and the drive motor 122 continues to rotate. Under the reaction force, the drive motor 122 moves forward with the motor slider 112 towards the incubation position, thus accelerating the speed at which the lower push plate approaches the target dried sheet.

[0037] Reference Figure 5 The schematic diagram shows that the back of the base 11 is provided with a guide rod 114 and an elastic element 115 sleeved on the guide rod 114. The base 11 has a guide hole 116. A follower 1212 is fixedly connected to the motor mounting base 121. The follower 1212 passes through the guide hole 116 and is slidably connected to the guide rod 114. The elastic element 115 is used to provide elastic force when the motor mounting base 121 slides horizontally with the motor slider 112.

[0038] In this embodiment, the elastic element 115 abuts against the follower 1212 and the fixing plate at one end of the base 11. During the ejection of the dry sheet, when either of the two push plates contacts the limiting member 113, the drive motor 122 and the motor mounting base 121 will move towards the incubation position under the reaction force. In this case, the elastic element 115 is compressed until the dry sheet is ejected. Then, the drive motor 122 is reversed, causing the compressed elastic element to be released. When the elastic element 115 resets, it carries the drive motor 122 back to its original position. Therefore, the elastic element 115 provided in this embodiment facilitates the rapid reset of the drive motor 122, making the next push easier. The elastic element 115 provided in this embodiment can be a spring.

[0039] This embodiment also provides a dry biochemical analyzer, including... Figure 1The dry slide ejection device can be provided in any of the following implementations. The dry biochemical analyzer provided in this embodiment includes all the technical effects of the aforementioned dry slide ejection device, which will not be repeated here.

[0040] The above are merely embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model shall be included within the scope of the claims of this utility model pending approval.

Claims

1. A dry film ejection device, characterized in that, The tray is used to push out the dried slices from the display plate incubation tray. The display plate incubation tray includes an upper display plate incubation tray and a lower display plate incubation tray stacked on top of each other. Each display plate incubation tray is provided with multiple incubation positions, which are used to place the dried slices. The dry sheet ejection device includes: a base, a driving mechanism disposed on the base, and two sliding mechanisms that slide horizontally in opposite directions under the drive of the driving mechanism. The two sliding mechanisms are respectively used to eject the dry sheets from the upper display plate incubation tray and the lower display plate incubation tray. The sliding mechanism includes a push plate that slides in the horizontal direction. The push plate extends to the incubation position of the display plate incubation tray as the sliding mechanism slides.

2. The dry sheet ejection device according to claim 1, characterized in that, The drive mechanism includes: a motor mounting base disposed on the base, a drive motor fixed on the motor mounting base, a drive gear connected to the output end of the drive motor, a reversing gear meshing with the drive gear, and two scrap gears meshing with the reversing gear. The scrap gears mesh with the push plate, and the push plate moves horizontally under the drive of the scrap gears.

3. The dry sheet ejection device according to claim 2, characterized in that, The sliding mechanism further includes: a push plate guide rail fixed on the base, a push plate slider slidably disposed on the push plate guide rail, and a slider seat fixed on the push plate slider, wherein the slider seat is used to mount the push plate.

4. A dry sheet ejection device according to claim 3, characterized in that, The base is also provided with a motor guide rail and a motor slider that is slidably disposed on the motor guide rail. The motor slider is used to mount the drive mechanism so that the drive mechanism can slide along the motor guide rail.

5. A dry sheet ejection device according to claim 4, characterized in that, One end of the push plate is provided with a limiting member. When the push plate slides away from the incubation position until it comes into contact with the limiting member, the drive mechanism moves along the motor guide rail towards the incubation position along with the motor slider.

6. A dry sheet ejection device according to claim 5, characterized in that, The limiting member has a buffer pad on the side near the push plate.

7. A dry sheet ejection device according to claim 2, characterized in that, The push plate includes a toothed surface and a toothless surface. The toothed surface of the push plate meshes with the waste gear. A guide wheel is provided on the motor mounting base, and the guide wheel is attached to the toothless surface of the push plate.

8. A dry sheet ejection device according to claim 2, characterized in that, The back of the base is provided with a guide rod and an elastic element sleeved on the guide rod. The base is provided with a guide hole. A follower is fixedly connected to the motor mounting base. The follower passes through the guide hole and is slidably connected to the guide rod. The elastic element is used to provide elastic force when the motor mounting base slides horizontally with the motor slider.

9. A dry biochemical analyzer, characterized in that, The device includes the dry sheet ejection apparatus according to any one of claims 1 to 8.

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