CN218481651U - Mechanism for detecting existence of collecting container and separating collecting container from puncture needle - Google Patents

Abstract

The utility model discloses a mechanism for detecting whether a collecting container exists or not and separating the collecting container from a puncture needle, which relates to the technical field of sample collection and comprises an actuating motor component, an actuating motor component mounting plate, a puncture needle adapter plate, a puncture needle mounting plate, a puncture needle, a spring plunger, a collecting container monitoring plate, a micro switch mounting plate, a rotary tray, a collecting container, a guide shaft and a guide shaft sleeve; the executing motor assembly is fixed on the executing motor assembly mounting plate; the execution motor assembly consists of an execution motor and a screw nut; in the operation process of the execution motor, the screw rod nut can complete linear motion. The utility model provides a detect collection container and have or not and collect the mechanism of container and pjncture needle separation, this structure has satisfied collection container and the requirement that the pjncture needle reaches the separation, has also satisfied this appeal that detects collection container and have or not simultaneously for the structure becomes compacter, succinct.

Description

Mechanism for detecting whether collecting container exists or not and separating collecting container from puncture needle

Technical Field

The utility model relates to a sample collection technical field specifically is a detect collecting container and have and collecting container and mechanism of pjncture needle separation.

Background

When samples are collected for analysis, collection containers with closed bottle caps are often used for collection because some collection liquids contain harmful volatile substances. The bottle cap is a plastic piece, a hollow part in the middle position is used for filling the rubber soft flat pad, and the bottle cap and the collecting container body are combined to extrude the rubber soft flat pad in the process so as to achieve the sealing effect.

In order to discharge the collected liquid into the collecting container, a hollow metal puncture needle needs to pierce through the soft rubber pad of the bottle cap, so that the collected liquid is smoothly introduced.

With the characteristics of intellectualization and unattended operation of the instrument, the instrument needs to be made into a multi-channel instrument. On a rotating tray, a plurality of collecting containers can be placed, and the puncture needle only needs to puncture the corresponding collecting container each time.

In the process that the puncture needle pierces the rubber soft flat pad, inevitable friction force exists between the puncture needle and the rubber soft flat pad all the time. With the insertion and extraction of the puncture needle, the collection container is inevitably taken up, thereby causing the insertion and extraction failure.

The instrument will automatically rotate to the next spot upon entering the next sample extraction stage. The collection container of the previous spot will interfere significantly with the rotating tray, causing damage to the instrument.

In addition, in the multi-lane rotating tray, there are cases where no collection container is placed in a position corresponding to the tray for various reasons. The instrument can discharge harmful substances into the atmosphere by mistake under the unknown condition, and the environment is seriously damaged.

Therefore, according to the requirements, the mechanism for detecting whether the collecting container exists or not and separating the collecting container from the puncture needle is independently developed by me to meet the requirements of users and achieve better customer experience.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a detect the mechanism that collecting container has or not and collecting container and pjncture needle separation, when utilizing spring plunger's elasticity to overcome the frictional force between pjncture needle and the collecting container and reach the effect of pjncture needle and collecting container separation, can monitor the function whether collecting container has been placed to the last corresponding position of rotatory tray.

In order to achieve the above object, the utility model provides a following technical scheme:

a mechanism for detecting whether a collecting container exists or not and separating the collecting container from a puncture needle comprises an execution motor assembly, an execution motor assembly mounting plate, a puncture needle adapter plate, a puncture needle mounting plate, a puncture needle, a spring plunger, a collecting container monitoring plate, a microswitch mounting plate, a rotary tray, a collecting container, a guide shaft and a guide shaft sleeve;

the executing motor assembly is fixed on the executing motor assembly mounting plate; the execution motor assembly consists of an execution motor and a screw rod nut; in the operation process of the execution motor, the feed screw nut can complete linear motion;

the puncture needle adapter plate is fixed with the screw rod nut to complete up-and-down movement; the guide shaft is fixed on the execution motor assembly mounting plate through a screw, the guide shaft sleeve is fixed on the puncture needle adapter plate, and the motor finishes the functions of guiding and rotation stopping in the operation process;

the puncture needle mounting plate is fixed on the puncture needle adapter plate through screws; the puncture needle is fixed on the puncture needle mounting plate in a thread screwing mode;

the spring plunger is fixed on the puncture needle adapter plate in a thread screwing mode; the lower end of the spring plunger piston is provided with internal threads, and the collecting container monitoring plate is fixed at the lower end of the spring plunger piston through screws; the microswitch mounting plate is fixed on the puncture needle adapter plate, the microswitch is fixed on the microswitch mounting plate, and a trigger point of the microswitch is opposite to the top end of the spring plunger;

the collecting container is placed in the hole position corresponding to the rotating tray, the rotating tray can rotate, and the stopping position is that the current collecting container is positioned right below the puncture needle.

The actuating motor component drives the puncture needle adapter plate to move downwards in the operation process, and further drives the puncture needle mounting plate and the puncture needle to move downwards together, so that the puncture needle pierces through a rubber soft flat cushion of the collecting container to complete the puncture effect

The puncture needle adapter plate drives the spring plunger and the collection container monitoring plate to move downwards together in the downward movement process, and when the collection container is placed at a corresponding position on the rotating tray, the lower end surface of the collection container monitoring plate is in contact with the upper surface of the collection container bottle cap and cannot move downwards, the compression spring in the spring plunger is compressed to perform compression energy storage; when the puncture needle is separated from the collection container, the elastic force accumulated by the compression spring in the spring plunger is released preferentially, so that the inevitable friction force between the puncture needle and the collection container is offset, the collection container is pushed open, and the separation is completed.

When a compression spring in a spring plunger is compressed for energy storage, a rod in the spring plunger reversely stretches out of one section under the condition that a pipe sleeve outside the plunger is not fixed, a microswitch is arranged right above the spring plunger, the stretched section can trigger a trigger point of the microswitch, and the microswitch is monitored to obtain a feedback signal so as to judge that a collecting container exists at a position corresponding to a rotary tray and further discharge the collected container; on the contrary, if the trigger point of the micro switch is not triggered, the corresponding position can be judged to have no collecting container, so that the discharging can not be carried out.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a detect collecting container and have or not and the mechanism of collecting container and pjncture needle separation, this structure has satisfied collecting container and pjncture needle and has reached the requirement of separation, has also satisfied this appeal that detects collecting container has or not simultaneously for the structure becomes compacter, succinct.

Drawings

FIG. 1 is an exploded view of the overall structure of the present invention;

fig. 2 is an exploded view of the actuator assembly of the present invention;

FIG. 3 is a schematic structural view of the whole structure of the present invention, wherein the puncture needle does not puncture the back of the soft rubber pad of the bottle cap of the collection container;

fig. 4 is a schematic structural view of a structural shaft side of the whole structure of the utility model, wherein the puncture needle pierces the soft rubber pad of the bottle cap of the collecting container and the micro switch is triggered;

fig. 5 is a partially enlarged schematic view of a portion a of fig. 4.

In the figure: 1. an actuator motor assembly; 01. an execution motor; 02. a feed screw nut; 2. an actuating motor component mounting plate; 3. a puncture needle adapter plate; 4. a puncture needle mounting plate; 5. puncturing needles; 6. a spring plunger; 7. a collection container monitoring plate; 8. a microswitch; 9. a microswitch mounting plate; 10. rotating the tray; 11. a collection container; 12. a guide shaft; 13. and a guide shaft sleeve.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Examples

Referring to fig. 1 and 5, a mechanism for detecting whether a collection container exists or not and separating the collection container from a puncture needle comprises an execution motor assembly 1, an execution motor assembly mounting plate 2, a puncture needle adapter plate 3, a puncture needle mounting plate 4, a puncture needle 5, a spring plunger 6, a collection container monitoring plate 7, a microswitch 8, a microswitch mounting plate 9, a guide shaft 12 and a guide shaft sleeve 13;

the actuating motor component 1 is fixed on the actuating motor component mounting plate 2; the actuating motor component 1 consists of an actuating motor 01 and a screw nut 02; in the operation process of the actuating motor 01, the screw rod nut 02 can complete linear motion;

the puncture needle adapter plate 3 is fixed with the screw rod nut 02 to complete the up-and-down movement; the guide shaft 12 is fixed on the execution motor assembly mounting plate 2 through a screw, the guide shaft sleeve 13 is fixed on the puncture needle adapter plate 3, and the motor finishes the functions of guiding and rotation stopping in the running process;

the puncture needle mounting plate 4 is fixed on the puncture needle adapter plate 3 through screws; the puncture needle 5 is fixed on the puncture needle mounting plate 4 in a thread screwing mode;

the spring plunger 6 is fixed on the puncture needle adapter plate 3 in a thread screwing mode; the lower end of the spring plunger 6 contains internal threads, and the collection container monitoring plate 7 is fixed at the lower end of the spring plunger 6 through screws; the microswitch mounting plate 9 is fixed on the puncture needle adapter plate 3, the microswitch 8 is fixed on the microswitch mounting plate 9, and the trigger point of the microswitch 8 is right opposite to the top end of the spring plunger 6;

the collection container 11 rests in the corresponding hole site of the rotating tray 10, which rotating tray 10 is rotatable and each time stops in a position such that the current collection container 11 is located directly below the puncture needle 5.

The embodiment works as follows: in the operation process of the execution motor assembly 1, the puncture needle adapter plate 3 is driven to move downwards, and the puncture needle mounting plate 4 and the puncture needle 5 are further driven to move downwards together, so that the puncture needle 5 pierces through a rubber soft flat pad of the collection container 11, and the puncture effect is completed.

The puncture needle adapter plate 3 drives the spring plunger 6 and the collection container monitoring plate 7 to move downwards together in the downward movement process, and when the collection container 11 is placed at a corresponding position on the rotary tray 10, the lower end surface of the collection container monitoring plate 7 is in contact with the upper surface of the bottle cap of the collection container 11, so that the compression spring in the spring plunger 6 can be compressed for energy storage; when the puncture needle 5 is separated from the collection container 11, the elastic force accumulated in the compression spring inside the spring plunger 6 is released preferentially, and the inevitable frictional force between the puncture needle 5 and the collection container 11 is cancelled, and the collection container 11 is pushed open, thereby completing the separation.

When the compression spring in the spring plunger 6 is compressed for energy storage, under the condition that a pipe sleeve outside the plunger is not moved, a rod in the spring plunger 6 extends out in a reverse direction, the micro switch 8 is arranged right above the spring plunger 6, the extending part triggers a trigger point of the micro switch 8, and the micro switch 8 is monitored to obtain a feedback signal so as to judge that a collecting container 11 exists at a position corresponding to the rotary tray 10 and further discharge the collected signal; on the contrary, if the trigger point of the micro switch 8 is not triggered, it can be determined that the corresponding position does not have the collection container 11, so that the discharge is impossible.

Claims (2)

1. A mechanism for detecting whether a collecting container exists or not and separating the collecting container from a puncture needle comprises an execution motor assembly (1), an execution motor assembly mounting plate (2), a puncture needle adapter plate (3), a puncture needle mounting plate (4), a puncture needle (5), a spring plunger (6), a collecting container monitoring plate (7), a microswitch (8), a microswitch mounting plate (9), a guide shaft (12) and a guide shaft sleeve (13); the method is characterized in that:

the actuating motor component (1) is fixed on the actuating motor component mounting plate (2); the executing motor assembly (1) consists of an executing motor (01) and a lead screw nut (02); in the operation process of the execution motor (01), the screw rod nut (02) can complete linear motion;

the puncture needle adapter plate (3) is fixed with the screw rod nut (02) to complete up-and-down movement; the guide shaft (12) is fixed on the execution motor assembly mounting plate (2) through a screw, the guide shaft sleeve (13) is fixed on the puncture needle adapter plate (3), and the motor finishes the functions of guiding and rotation stopping in the operation process;

the puncture needle mounting plate (4) is fixed on the puncture needle adapter plate (3) through screws; the puncture needle (5) is fixed on the puncture needle mounting plate (4) in a thread screwing mode;

the spring plunger (6) is fixed on the puncture needle adapter plate (3) in a thread screwing mode; the lower end of the spring plunger (6) contains internal threads, and the collecting container monitoring plate (7) is fixed at the lower end of the spring plunger (6) through screws; the micro switch mounting plate (9) is fixed on the puncture needle adapter plate (3), the micro switch (8) is fixed on the micro switch mounting plate (9), and the trigger point of the micro switch (8) is right opposite to the top end of the spring plunger (6).

2. A mechanism for detecting the presence or absence of a collection container and the separation of the collection container from a puncture needle according to claim 1, characterized in that a collection container (11) is provided below the puncture needle (5), the collection container (11) rests in a hole site corresponding to a rotating tray (10), the rotating tray (10) is rotatable, and each stop is positioned such that the current collection container (11) is located directly below the puncture needle (5).

Images