Plunger pressing device

Abstract

The utility model provides a plunger pressing device which comprises a support, a driving mechanism, an ejector rod and a plunger adjusting assembly, the support is used for being installed on reagent disc assembling equipment, the driving mechanism and the plunger adjusting assembly are installed on the support, the ejector rod is connected with the driving mechanism and located above the plunger adjusting assembly, and the plunger adjusting assembly is located above the ejector rod. The plunger adjusting assembly is used for adjusting the angle of the plunger; the plunger adjusting assembly comprises a base and a baffle plate, the base is provided with a preassembling channel corresponding to a mounting hole for mounting a plunger on the reagent disc, the base is fixedly connected with the bracket, the baffle plate is fixedly mounted on the base, the base is provided with a pneumatic plunger adjusting assembly, and the pneumatic plunger adjusting assembly is used for adjusting the position of the plunger in the preassembling channel; a feeding hole used for being connected with a plunger feeding mechanism is formed in the baffle, and a receding hole allowing the ejector rod to penetrate through is formed in the baffle. According to the plunger press-fitting machine, automatic feeding of plungers can be achieved in actual use, and press-fitting of the plungers is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of biochemical reagent disc assembly equipment, in particular to a plunger pressing device. 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] In the prior art 1, the purpose of air permeability and liquid blocking is achieved by setting a molecular stopper (plunger). The plunger is small in size and generally has a cylindrical structure or a truncated cone structure. There is no equipment for loading the plunger in the prior art. The plunger is generally assembled manually to achieve loading of the plunger. The assembly efficiency is low and it is easy to miss the assembly. Utility Model Content

[0005] The utility model aims to provide a plunger pressing device, which can realize automatic loading of the plunger and press-fitting of the plunger in actual use.

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

[0007] A plunger pressing device comprises a bracket, a driving mechanism, a push rod and a plunger adjustment assembly, wherein the bracket is used to be mounted on a reagent disk assembly device, the driving mechanism and the plunger adjustment assembly are mounted on the bracket, the push rod is connected to the driving mechanism and is located above the plunger adjustment assembly, and the plunger adjustment assembly is used to adjust the angle of the plunger;

[0008] Among them, the plunger adjustment assembly includes a base and a baffle, the base is provided with a pre-installed channel corresponding to the mounting hole for installing the plunger on the reagent disk, the base is fixedly connected to the bracket, the baffle is fixedly installed on the base, and a pneumatic plunger adjustment assembly is provided on the base, and the pneumatic plunger adjustment assembly is used to adjust the position of the plunger in the pre-installed channel; the baffle is provided with a feed hole for connecting with the plunger feeding mechanism, and the baffle is provided with a makeshift hole for the push rod to pass through.

[0009] Wherein, the top rod and the bracket are slidably connected via a sliding assembly.

[0010] Furthermore, the sliding assembly includes a sliding rail fixedly arranged on the bracket and a sliding block arranged on the sliding rail and connected to the ejector rod.

[0011] Among them, 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 its size matches the size of the plunger.

[0012] Among them, the pneumatic plunger adjustment assembly includes a sensor and a blowing mechanism. A transverse hole is provided on the base, and the transverse hole and the alignment hole penetrate each other. The sensor is provided at one end of the transverse hole, and the sensor is used to detect whether there is a plunger in the alignment hole. The other end is connected to the blowing mechanism, and the blowing mechanism is used to blow air into the material guide hole.

[0013] 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.

[0014] In actual use, 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, and the second mounting hole is installed with a plug made of transparent material. Adjacent second mounting holes are connected by connecting holes.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model sends the plunger into the pre-installed channel and then adjusts the angle of the plunger through a pneumatic plunger adjustment component, so that the plunger can be in the pre-installed channel in a preset state. At this time, the driving mechanism drives the push rod to move toward the base, and the push rod passes through the yield hole to push the plunger, so that the plunger can move toward the mounting hole on the reagent disk. During the continuous movement of the push rod, the plunger can be pressed into the mounting hole of the reagent disk, thereby realizing automatic press-fitting and loading of the plunger, which can effectively improve the loading efficiency of the plunger. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the overall structure of the plunger adjustment assembly of the utility model.

[0020] Figure 3 Utility Model Figure 2 Top view of the .

[0021] Figure 4 For this utility model Figure 3 Section view of the AA plane.

[0022] Reference numerals:

[0023] 101-bracket, 102-driving mechanism, 103-rod, 104-pneumatic plunger adjustment assembly, 105-reagent tray, 106-base, 107-baffle, 108-pre-installed channel, 109-telescopic rod, 110-mounting hole, 111-clearance hole, 112-feeding hole, 113-guide hole, 114-alignment hole, 115-plunger, 116-sensor, 117-vertical hole, 118-inclined hole, 119-connector, 120-first mounting hole, 121-second mounting hole, 122-connecting hole, 123-sliding assembly, 124-sliding block, 125-slide rail, 126-transverse 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 4 , this embodiment discloses a plunger pressing device, including a bracket 101, a driving mechanism 102, a push rod 103 and a plunger adjustment assembly 104, the bracket 101 is used to be installed on a reagent disk assembly device, the driving mechanism 102 and the plunger adjustment assembly 104 are installed on the bracket 101, the push rod 103 is connected to the driving mechanism 102 and is located above the plunger adjustment assembly 104, and the plunger adjustment assembly 104 is used to adjust the angle of the plunger 115;

[0032] The plunger adjustment assembly 104 includes a base 106 and a baffle 107. The base 106 is provided with a pre-installed channel 108 corresponding to the mounting hole 110 for mounting the plunger 115 on the reagent disk 105. The base 106 is fixedly connected to the bracket 101. The baffle 107 is fixedly installed on the base 106. The base 106 is provided with a pneumatic plunger adjustment assembly 104, which is used to adjust the position of the plunger 115 in the pre-installed channel 108. The baffle 107 is provided with a feed hole 112 for connecting with the plunger feeding mechanism, and the baffle 107 is provided with a clearance hole 111 for the ejector rod 103 to pass through. The plunger feeding mechanism is used to realize the automatic loading of the plunger, so that the plunger enters the pre-installed channel 108 in a single form.

[0033] The utility model delivers the plunger 115 to the pre-installed channel 108, and then adjusts the angle of the plunger 115 through the pneumatic plunger adjustment component, so that the plunger 115 can be in the pre-installed channel 108 in a preset state. At this time, the driving mechanism 102 drives the push rod 103 to move toward the base 106, and the push rod 103 passes through the clearance hole 111 to push the plunger 115, so that the plunger 115 can move toward the mounting hole 110 on the reagent disk 105. During the continuous movement of the push rod 103, the plunger 115 can be pressed into the mounting hole 110 of the reagent disk 105, thereby realizing automatic press-fitting and loading of the plunger 115, which can effectively improve the loading efficiency of the plunger 115.

[0034] This embodiment realizes the position adjustment of the plunger 115 and the automatic press-fitting and loading in actual use, thereby realizing the automatic assembly of the plunger 115 .

[0035] The push rod 103 and the bracket 101 are slidably connected via a sliding assembly 123 . The sliding assembly 123 includes a slide rail 125 fixedly disposed on the bracket 101 and a slider 124 disposed on the slide rail 125 and connected to the push rod 103 .

[0036] The sliding assembly 123 is provided to make the push rod 103 more stable when moving, so that the push rod 103 can move in a preset direction, thereby achieving stable press-fitting of the plunger 115 .

[0037] In actual use, the baffle 107 is provided with a guide slope connected to the clearance hole 111, so as to facilitate the insertion of the push rod 103 into the clearance hole 111. In specific implementation, the push rod 103 is always located in the clearance hole 111 and will not exit the clearance hole 111.

[0038] The driving mechanism 102 may be a telescopic rod 109, such as an electric telescopic rod, a pneumatic telescopic rod or a hydraulic telescopic rod.

[0039] Among them, the pre-installed channel 108 includes a material guide hole 113 with a funnel-shaped structure and an alignment hole 114 connected to the material guide hole 113, and the lower end of the alignment hole 114 corresponds to the mounting hole 110; the alignment hole 114 is a truncated cone-shaped hole with a larger upper end and a smaller lower end, and the alignment hole 114 has the same external structure as the plunger 115, and the size matches the size of the plunger 115.

[0040] Among them, the pneumatic plunger adjustment assembly 104 includes a sensor 116 and a blowing mechanism. A transverse hole 126 is provided on the base 106. The transverse hole 126 and the alignment hole 114 penetrate each other. The sensor 116 is provided at one end of the transverse hole 126. The sensor 116 is used to detect whether there is a plunger 115 in the alignment hole 114. The other end is connected to the blowing mechanism, which is used to blow air into the material guide hole 113.

[0041] In this way, the plunger 115 enters the guide hole 113 in a single manner. After the plunger 115 enters the guide hole 113, it will fall into the alignment hole 114. Since the alignment hole 114 is a truncated cone-shaped hole with a large upper end and a small lower end, the alignment hole 114 has the same appearance structure as the plunger 115, and the size matches the size of the plunger 115. In this way, the plunger 115 can only enter the alignment hole 114 at a suitable angle. When the angle of the plunger 115 is not right, the plunger 115 will be stuck in the guide hole 113 and the alignment hole 114 in an inclined manner. At the connection, the sensor 116 cannot detect the plunger 115, and the blowing mechanism will blow air into the guide hole 113, so that the plunger 115 is blown and adjusted in position. When the plunger 115 enters the alignment hole 114, the sensor 116 will detect the plunger 115, so that the position of the plunger 115 can be adjusted, thereby improving the assembly efficiency of the plunger 115; when the plunger 115 is located inside the alignment hole 114, the driving mechanism 102 drives the push rod 103 to push the plunger 115 to move, thereby realizing the press-fitting of the plunger 115.

[0042] The feed hole 112 includes a vertical hole 117 and an inclined hole 118, the vertical hole 117 is connected to the inclined hole 118, the vertical hole 117 is installed with a connector 119, the connector 119 is connected to the plunger 115 feeding mechanism, and the discharge end of the inclined hole 118 is aligned with the inner wall of the guide hole 113. The baffle 107 can play a blocking role when the plunger 115 is blown upward.

[0043] Furthermore, in actual use, the two ends of the base 106 are respectively provided with a first mounting hole 120 and a second mounting hole 121 connected to the transverse hole 126. The first mounting hole 120 is used to install the sensor 116. The second mounting hole 121 is installed with a plug, which is made of transparent material. Adjacent second mounting holes 121 are connected by a connecting hole 122.

[0044] The adjacent second mounting holes 121 are connected by the connecting hole 122. In actual use, only one set of blowing mechanism is needed. When the plunger 115 enters the alignment hole 114, the airflow will directly act on the side of the plunger 115. At this time, the horizontal hole of the plunger 115 is blocked, and the airflow will not blow the plunger 115 to move.

[0045] In actual use, since the alignment hole 114 corresponds to the mounting hole 110 on the reagent disk 105, when the airflow in the horizontal hole enters the alignment hole 114, part of the airflow moves downward and part of the airflow moves upward. The upward airflow will blow the plunger 115 to move, thereby adjusting the position. The downward part of the gas will be relatively less due to the obstruction of the reagent disk 105; that is to say, when the base 106 contacts the reagent disk 105, there is some air leakage in the gap.

[0046] 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.

[0047] The base 106 and the baffle 107 are fixedly connected by bolts.

[0048] Preferably, the angle between the axis of the inclined hole 118 and the horizontal line is 30-45°, so that the plunger 115 moving upward can be blocked by the wall of the inclined hole 118 and then rebound and fall. In this embodiment, 45° is preferred.

[0049] Of course, in actual use, the sliding assembly can also be in a manner where the sliding groove cooperates with the sliding block, and the push rod 103 is fixedly mounted on the sliding block.

[0050] 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.

[0051] 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 pressing device, characterized in that: It includes a bracket, a driving mechanism, a push rod and a plunger adjustment assembly, the bracket is used to be installed on the reagent tray assembly device, the driving mechanism and the plunger adjustment assembly are installed on the bracket, the push rod is connected to the driving mechanism and is located above the plunger adjustment assembly, and the plunger adjustment assembly is used to adjust the angle of the plunger; Among them, the plunger adjustment assembly includes a base and a baffle, the base is provided with a pre-installed channel corresponding to the mounting hole for installing the plunger on the reagent disk, the base is fixedly connected to the bracket, the baffle is fixedly installed on the base, and a pneumatic plunger adjustment assembly is provided on the base, and the pneumatic plunger adjustment assembly is used to adjust the position of the plunger in the pre-installed channel; the baffle is provided with a feed hole for connecting with the plunger feeding mechanism, and the baffle is provided with a makeshift hole for the push rod to pass through.

2. A plunger pressing device according to claim 1, characterized in that: The top rod and the bracket are slidably connected via a sliding assembly.

3. A plunger pressing device according to claim 2, characterized in that: The sliding assembly comprises a sliding rail fixedly arranged on the bracket and a sliding block arranged on the sliding rail and connected with the ejector rod.

4. A plunger pressing device according to claim 1, characterized in that: 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 installation 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 its size matches the size of the plunger.

5. A plunger pressing device according to claim 4, characterized in that: The pneumatic plunger adjustment assembly includes a sensor and a blowing mechanism. A transverse hole is provided on the base, and the transverse hole and the alignment hole penetrate each other. The sensor is provided at one end of the transverse hole, and the sensor is used to detect whether there is a plunger in the alignment hole. The other end is connected to the blowing mechanism, and the blowing mechanism is used to blow air into the material guide hole.

6. A plunger pressing device according to claim 4, characterized in that: 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.

7. A plunger pressing device according to claim 5, characterized in that: 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.

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