Plunger position adjusting mechanism

Abstract

The utility model provides a plunger position adjusting mechanism which comprises a base and a baffle, and the base is provided with a preassembling channel corresponding to a mounting hole for mounting a plunger on a reagent disc; the preassembling channel comprises a material guide hole of a funnel-shaped structure and an alignment hole connected with the material guide hole, and the lower end of the alignment hole corresponds to the mounting hole; the alignment hole is a circular truncated cone-shaped hole with a large upper end and a small lower end, is the same as the plunger in appearance structure, and is matched with the plunger in size; a feeding hole is formed in the baffle and used for being connected with a plunger feeding mechanism. A transverse hole is formed in the base and penetrates through the alignment hole, a sensor is arranged at one end of the transverse hole and used for detecting whether a plunger is arranged in the alignment hole or not, and an air blowing device is connected to the other end of the transverse hole and used for blowing air into the material guiding hole. The automatic plunger assembling device is mainly used for automatic plunger assembling in actual use, position adjustment during automatic plunger assembling is achieved, and plunger assembling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of biochemical reagent disc assembly equipment, in particular to a plunger position adjustment mechanism. Background Art

[0002] The sample analyzer is mainly used for the determination of biochemical and chemical components in clinical blood or other liquid samples, and is one of the commonly used testing instruments for clinical analysis. The sample analyzer usually includes a reagent disk, and the sample is tested through the reagent disk.

[0003] The invention patent with application number: CN202311491814.5 and publication number: CN117531554A (hereinafter referred to as prior art 1) discloses a microfluidic fan-shaped biochemical reagent disk assembly and a method of using the same. The specification thereof records: the detection hole includes a straight-through detection hole 132 and an exhaust-type detection hole 133, and the straight-through detection hole 132 is directly connected to the annular flow channel 125 through a flow channel; the exhaust-type detection hole 133 is connected to the annular flow channel 125 through a capillary, and the exhaust-type detection hole 133 is also connected to a first exhaust hole 134, and a molecular plug is arranged in the first exhaust hole 134, and the molecular plug is used for ventilation and liquid blocking. When in use, for detection items with lower contamination requirements, the straight-through detection hole 132 can be directly used for detection, and the liquid is introduced and exhausted simultaneously, and the gas is discharged into the annular flow channel 125. When the liquid enters the straight-through detection hole 132, the freeze-dried beads in the straight-through detection hole 132 will dissolve, and the melted freeze-dried reagent will be easily brought out during exhaust, causing sample contamination; therefore, for detection items with higher contamination requirements, the exhaust-type detection hole 133 can be used for detection. After the solution enters the exhaust-type detection hole 133, the internal air is squeezed out from the first exhaust hole 134 to prevent the freeze-dried reagent from entering the annular channel.

[0004] There is no equipment for assembling molecular plugs (plungers) in the prior art. In enterprise production, manual assembly is used. However, due to the small size of the molecular plug, it is easy to miss the assembly, and manual assembly has low assembly efficiency. Utility Model Content

[0005] The utility model aims to provide a plunger position adjustment mechanism, which is mainly used for automatic assembly of the plunger in actual use, realizes the adjustment of the position of the plunger during automatic assembly, and improves the assembly efficiency of the plunger.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A plunger position adjustment mechanism comprises a base and a baffle, wherein the base is provided with a pre-installed channel corresponding to a mounting hole for installing the plunger on a reagent disk; the pre-installed channel corresponds one-to-one with the mounting hole on the reagent disk;

[0008] The pre-installed channel includes a material guide hole with a funnel-shaped structure and an alignment hole connected to the material guide hole, and the lower end of the alignment hole corresponds to the mounting hole; the alignment hole is a truncated cone-shaped hole with a larger upper end and a smaller lower end, and the alignment hole has the same outer structure as the plunger, and the size matches the size of the plunger;

[0009] A feed hole is provided on the baffle plate, which is used to connect with the plunger feeding mechanism; a transverse hole is provided on the base, which penetrates the alignment hole, a sensor is provided at one end of the transverse hole, the sensor is used to detect whether there is a plunger in the alignment hole, and a blowing device is connected to the other end, which is used to blow air into the guide hole.

[0010] Wherein, the sensor is an optical fiber sensor.

[0011] Furthermore, the feed hole includes a vertical hole and an inclined hole, the vertical hole is connected to the inclined hole, a connector is installed in the vertical hole, the connector is connected to the plunger feeding mechanism, and the discharge end of the inclined hole is aligned with the inner wall of the guide hole.

[0012] Preferably, a first mounting hole and a second mounting hole connected to the transverse hole are respectively provided at both ends of the base, the first mounting hole is used to install the sensor, the second mounting hole is installed with a plug, the plug is made of transparent material, and adjacent second mounting holes are connected by a connecting hole.

[0013] Wherein, the air blowing device is an intermittent air supply device.

[0014] Furthermore, the base and the baffle are fixedly connected by bolts.

[0015] Among them, the angle between the axis of the inclined hole and the horizontal line is 30-45°.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] In actual use, the utility model feeds materials through the provided plunger feeding mechanism, so that the plunger enters the material guide hole in a single manner, and the plunger will fall into the alignment hole after entering the inside of the material guide hole. Since the alignment hole is a truncated cone-shaped hole with a larger upper end and a smaller lower end, the alignment hole has the same outer structure as the plunger, and the size matches the size of the plunger, so that the plunger can enter the alignment hole only at a suitable angle. When the angle of the plunger is not correct, the plunger will be stuck at the connection between the material guide hole and the alignment hole in an inclined manner. At this time, the sensor cannot detect the plunger, and the blowing device will blow air into the material guide hole, so that the plunger adjusts its position after being blown. When the plunger enters the alignment hole, the sensor will detect the plunger at this time, so that the adjustment of the plunger position can be completed, thereby improving the efficiency of plunger assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 For this utility model Figure 1 Front view of .

[0021] Figure 3 For this utility model Figure 2 Section view of the middle AA plane.

[0022] Reference numerals:

[0023] 101-base, 102-baffle, 103-reagent tray, 104-mounting hole, 105-pre-installed channel, 106-material guide hole, 107-alignment hole, 108-feeding hole, 109-horizontal hole, 110-sensor, 111-vertical hole, 112-inclined hole, 113-connector, 114-first mounting hole, 115-second mounting hole, 116-connecting hole. DETAILED DESCRIPTION

[0024] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0025] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0027] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0028] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0030] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0031] See also Figure 1-Figure 3 , this embodiment discloses a plunger position adjustment mechanism, including a base 101 and a baffle 102, the base 101 is provided with a pre-installed channel 105 corresponding to a mounting hole 104 on a reagent disk 103 for mounting a plunger; the pre-installed channel 105 corresponds one-to-one with the mounting hole 104 on the reagent disk 103;

[0032] The pre-installed channel 105 includes a guide hole 106 with a funnel-shaped structure and an alignment hole 107 connected to the guide hole 106. The lower end of the alignment hole 107 corresponds to the mounting hole 104. The alignment hole 107 is a truncated cone-shaped hole with a larger upper end and a smaller lower end. The alignment hole 107 has the same shape and structure as the plunger, and its size matches the size of the plunger.

[0033] The baffle 102 is provided with a feed hole 108, which is used to connect with the plunger feeding mechanism; the base 101 is provided with a transverse hole 109, which penetrates the alignment hole 107, and a sensor 110 is provided at one end of the transverse hole 109, which is used to detect whether there is a plunger in the alignment hole 107, and the other end is connected to a blowing device, which is used to blow air into the guide hole 106.

[0034] In actual use, the utility model feeds materials through the provided plunger feeding mechanism, so that the plunger enters the material guide hole 106 in a single manner. After the plunger enters the material guide hole 106, it will fall into the alignment hole 107. Since the alignment hole 107 is a truncated cone-shaped hole with a larger upper end and a smaller lower end, the alignment hole 107 has the same outer structure as the plunger, and its size matches the size of the plunger, so that the plunger can only enter the alignment hole 107 at a suitable angle. When the angle of the plunger is not correct, the plunger will be stuck at the connection between the material guide hole 106 and the alignment hole 107 in an inclined manner. At this time, the sensor 110 cannot detect the plunger, and the blowing device will blow air into the material guide hole 106, so that the plunger adjusts its position after being blown. When the plunger enters the alignment hole 107, the sensor 110 will detect the plunger, so that the adjustment of the plunger position can be completed, thereby improving the efficiency of plunger assembly.

[0035] In actual use, a pressing mechanism is provided on the base 101, and the pressing mechanism is used to press the plunger from the alignment hole 107 into the mounting hole 104 on the reagent disk 103, thereby realizing automatic assembly of the plunger.

[0036] The sensor 110 is a fiber optic sensor.

[0037] Furthermore, the feed hole 108 includes a vertical hole 111 and an inclined hole 112, the vertical hole 111 is connected to the inclined hole 112, the vertical hole 111 is installed with a connector 113, the connector 113 is connected to the plunger feeding mechanism, and the discharge end of the inclined hole 112 is aligned with the inner wall of the guide hole 106. The baffle 102 can play a blocking role when the plunger is blown upward.

[0038] In some specific implementation cases, a first mounting hole 114 and a second mounting hole 115 connected to the horizontal hole 109 are respectively provided at both ends of the base 101. The first mounting hole 114 is used to install the sensor 110. The second mounting hole 115 is installed with a plug made of a transparent material. Adjacent second mounting holes 115 are connected by a connecting hole 116.

[0039] The adjacent second mounting holes 115 are connected by the connecting hole 116. In actual use, only one set of blowing device is needed. When the plunger enters the alignment hole 107, the airflow will directly act on the side of the plunger. At this time, the plunger transverse hole 109 is blocked, and the airflow will not blow the plunger to move. In actual use, since the alignment hole 107 corresponds to the mounting hole 104 on the reagent disk 103, when the airflow in the transverse hole 109 enters the alignment hole 107, part of the airflow moves downward and part moves upward. The upward airflow will blow the plunger to move, thereby adjusting the position. The downward part of the gas will be relatively less due to the blockage of the reagent disk 103. That is to say, when the base 101 contacts the reagent disk 103, there is a part of air leakage in the gap.

[0040] It should be noted that, in actual use, the air blowing device is an intermittent air supply device, and the intermittent air supply device can adopt the air supply device in the prior art, and its structure is not described in detail here.

[0041] The base 101 and the baffle 102 are fixedly connected by bolts.

[0042] Preferably, the angle between the axis of the inclined hole 112 and the horizontal line is 30-45°, so that the plunger moving upward can be blocked by the wall of the inclined hole 112 and then rebound and fall. In this embodiment, 40° is preferred.

[0043] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plunger position adjustment mechanism, Features: It comprises a base and a baffle, wherein the base is provided with a pre-installed channel corresponding to the mounting hole for mounting the plunger on the reagent disk; the pre-installed channel comprises a material guide hole in a funnel-shaped structure and an alignment hole connected to the material guide hole, wherein the lower end of the alignment hole corresponds to the mounting hole; the alignment hole is a truncated cone-shaped hole with a larger upper end and a smaller lower end, and the alignment hole has the same outer structure as the plunger, and the size matches the size of the plunger; A feed hole is provided on the baffle plate, which is used to connect with the plunger feeding mechanism; a transverse hole is provided on the base, which penetrates the alignment hole, a sensor is provided at one end of the transverse hole, the sensor is used to detect whether there is a plunger in the alignment hole, and a blowing device is connected to the other end, which is used to blow air into the guide hole.

2. A plunger position adjustment mechanism according to claim 1, Features: The sensor is a fiber optic sensor.

3. A plunger position adjustment mechanism according to claim 2, Features: The feed hole comprises a vertical hole and an inclined hole, the vertical hole is connected with the inclined hole, a connector is installed in the vertical hole, the connector is connected with the plunger feeding mechanism, and the discharge end of the inclined hole is aligned with the inner wall of the guide hole.

4. A plunger position adjustment mechanism according to claim 1, Features: A first mounting hole and a second mounting hole connected to the transverse hole are respectively arranged at both ends of the base. The first mounting hole is used to install the sensor. The second mounting hole is installed with a plug made of transparent material. Adjacent second mounting holes are connected by a connecting hole.

5. A plunger position adjustment mechanism according to claim 1, Features: The air blowing device is an intermittent air supply device.

6. A plunger position adjustment mechanism according to claim 1, Features: The base and the baffle are fixedly connected by bolts.

7. A plunger position adjustment mechanism according to claim 2, Features: The angle between the axis of the inclined hole and the horizontal line is 30-45°.

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