CN217738857U

CN217738857U - Destructive force testing mechanism

Info

Publication number: CN217738857U
Application number: CN202221416914.2U
Authority: CN
Inventors: 武瑞金; 沈玉懿; 王蒲蕊; 李劲松; 金卫民; 易林川; 赵雨; 何四现; 杜嘉文
Original assignee: Suzhou Jiashu Medical Technology Co ltd
Current assignee: Suzhou Jiashu Medical Technology Co ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-11-04
Anticipated expiration: 2032-06-08

Abstract

The utility model provides a destructive power accredited testing organization, it makes the injection pen in the in-process that pushes down, and the pressure value that whole mechanism real-time feedback nib position received is destroyed until the nib position, notes corresponding pressure numerical value, its operation high efficiency. It includes: the guide pressure attaching shell comprises a guide hole for inserting the pen point of the injection pen; a pressure sensor; the connecting seat comprises a pressing horizontal plate and at least two lower convex guide rods; a stressed base plate; and a linear spring which ensures the timely return of the mechanism; the guide pressure attaching shell is pressed on the stressed upper surface of the pressure sensor, one end of the lower surface of the pressure sensor is pressed on the upper surface of the pressure attaching horizontal plate, at least two downward-protruding guide rods are arranged on the lower portion of the pressure attaching horizontal plate along the length direction of the pressure attaching horizontal plate, the stress bottom plate is arranged below the pressure attaching horizontal plate, the lower ends of the guide rods penetrate through holes in the stress bottom plate, and at least one linear spring is arranged between the pressure attaching horizontal plate and the stress bottom plate.

Description

Destructive force testing mechanism

Technical Field

The utility model relates to an injection pen pressure feedback's technical field specifically is destructive power accredited testing organization.

Background

In the existing injection container, a liquid medicine needs to be injected into the injection container through an injection pen, in the actual injection process, the injection pen needs to be inserted into an injection hole of the injection container and is in pressure contact with the injection container, and when the injection is carried out, an injection head of the injection pen generates excessive pressure between the injection head and the injection container to be damaged, so that the injection operation cannot be continuously and reliably carried out; the lowest destructive power corresponding to each type of injection pen is different, and therefore a destructive power testing mechanism corresponding to the injection pen needs to be developed, so that the subsequent operation of the injection pen is not greater than the corresponding pressure value to perform the injection operation, and the injection pen is ensured to work durably and reliably.

Disclosure of Invention

To the problem, the utility model provides a destructive power accredited testing organization, it makes the injection pen in the in-process that pushes down, and the pressure value that whole mechanism real-time feedback nib position received is destroyed until the nib position, notes corresponding pressure numerical value, its operation high efficiency.

Destructive force testing mechanism, its characterized in that, it includes:

the guide pressure attaching shell comprises a guide hole for inserting the pen point of the injection pen;

a pressure sensor;

the connecting seat comprises a pressing attaching horizontal plate and at least two lower convex guide rods;

a stressed base plate;

and a linear spring which ensures the timely return of the mechanism;

the direction is pressed and is attached the casing body pressure and attach pressure sensor's atress upper surface, pressure sensor's lower surface one end pressure is attached the upper surface that the pressure attached the horizontal plate, the lower part that the pressure attached the horizontal plate is arranged two piece at least down protruding along its length direction the guide arm, the atress bottom plate is located the below that the pressure attached the horizontal plate is arranged, the lower extreme of guide arm runs through the through hole on the atress bottom plate, the pressure attach the horizontal plate with at least one has been arranged between the atress bottom plate linear spring.

It is further characterized in that:

the guide pressure-adhering shell comprises an upper shell and a lower shell, the center of the upper part of the lower shell is recessed inwards to form a placing groove, absorbent cotton is placed in the placing groove, a through guide hole is formed in the center of the upper shell, the guide hole ensures that pen points of the injection pen are inserted and positioned, and the pen points are pressed on the absorbent cotton, so that the accuracy and reliability of data are ensured;

the two sides of the stress bottom plate are respectively fixedly connected with a connecting plate, each connecting plate comprises a vertical part and a horizontal part, the bottom of each vertical part is fixedly connected with the corresponding side edge of the stress bottom plate, the top of each vertical part is provided with a horizontal part protruding outwards, the horizontal part is provided with a waist-shaped positioning hole penetrating in the thickness direction, and the waist-shaped positioning holes are used for fixedly mounting the whole mechanism on corresponding stations;

the through holes are internally provided with linear bearings, and the guide rods respectively penetrate through the linear bearings to be arranged, so that the smoothness and the reliability of linear movement are ensured;

the bottom of each guide rod is sleeved with a fixing ring and further comprises a linear measuring mechanism, and the height direction position of the fixing ring is measured through the linear measuring mechanism, so that the height direction displacement of the pen point of the injection pen can be obtained;

the test mechanism further comprises an upper test protection cover, wherein the upper test protection cover is covered on the upper surface area of the whole mechanism, a guide through hole is formed in the upper test protection cover corresponding to the position of the guide pressing attached shell, and the guide through hole facilitates the insertion operation of the injection pen.

Adopt the utility model discloses afterwards, the nib cartridge of injection pen is in the guiding hole, later the injection pen is attached the operation by exogenic action downward pressure, pressure sensor is given for pressure sensor downwards to the pressure of nib department, pressure sensor feeds back the pressure value in real time, receive destruction until nib department, pressure sensor monitors this numerical value, it makes the injection pen in the in-process that pushes down, the pressure value that whole mechanism feeds back nib position in real time receives, until the nib position is destroyed, note corresponding pressure numerical value, as the pressure damage value of this experiment, after repeat above-mentioned experiment once more, after a plurality of experiments, obtain the minimum pressure damage value that corresponds the injection pen through scientific arrangement, the biggest numerical value of pressure when making follow-up operation is no longer than corresponding minimum pressure damage value, ensure the lasting reliable work of injection pen.

Drawings

Fig. 1 is a schematic structural view of a perspective view of the present invention;

fig. 2 is a schematic front view structure diagram of the present invention;

FIG. 3 isbase:Sub>A schematic view of the section A-A of FIG. 2;

the component names of the corresponding serial numbers in the text are as follows:

the device comprises a guide pressing shell 10, a guide hole 11, an upper shell 12, a lower shell 13, a placing groove 14, a pressure sensor 20, a connecting seat 30, a pressing horizontal plate 31, a guide rod 32, a lower guide pillar 33, a stress bottom plate 40, a through hole 41, a spring positioning groove 42, a linear spring 50, a connecting plate 60, a vertical part 61, a horizontal part 62, a waist-shaped positioning hole 621, a linear bearing 70, a fixing ring 80, a linear measuring mechanism 90, an upper testing protective cover 100 and a guide through hole 101.

Detailed Description

The destructive force testing mechanism is shown in fig. 1-3 and comprises a guide pressure attaching shell 10, a pressure sensor 20, a connecting seat 30, a stressed bottom plate 40 and a linear spring 50; the guide pressure attaching shell 10 comprises a guide hole 11 for inserting the pen point of the injection pen; the connecting seat 30 comprises a pressing horizontal plate 31 and at least two lower convex guide rods 32; the linear spring 50 ensures the timely return of the mechanism;

the guide pressure attaching shell 10 is attached to the stressed upper surface of the pressure sensor 20 in a pressing mode, one end of the lower surface of the pressure sensor 20 is attached to the upper surface of the pressure attaching horizontal plate 31 in a pressing mode, at least two guide rods 32 protruding downwards are arranged on the lower portion of the pressure attaching horizontal plate 31 in the length direction, the stressed bottom plate 40 is arranged below the pressure attaching horizontal plate 31, the lower ends of the guide rods 32 penetrate through holes 41 in the stressed bottom plate 40, and at least one linear spring 50 is arranged between the pressure attaching horizontal plate 31 and the stressed bottom plate 40.

In the specific embodiment: the guide pressure-attaching shell 10 comprises an upper shell 12 and a lower shell 13, the center of the upper part of the lower shell 13 is concave inwards to form a placing groove 14, absorbent cotton (not shown in the figure) is placed in the placing groove 14, a through guide hole 11 is formed in the center of the upper shell 12, the guide hole 11 ensures that the pen points of the injection pen are inserted and positioned, and the pen points are pressed on the absorbent cotton to ensure the accuracy and reliability of data;

the two sides of the stressed bottom plate 40 are fixedly connected with connecting plates 60 respectively, each connecting plate 60 comprises a vertical part 61 and a horizontal part 62, the bottom of each vertical part 61 is fixedly connected with the corresponding side edge of the stressed bottom plate 40, the top of each vertical part 61 is provided with the horizontal part 62 protruding outwards, each horizontal part 62 is provided with a waist-shaped positioning hole 621 penetrating in the thickness direction, and each waist-shaped positioning hole 621 is used for fixedly mounting the whole mechanism at the corresponding station;

the through holes 41 are provided with linear bearings 70 therein, and the guide rods 32 are respectively arranged to penetrate the linear bearings 70, thereby ensuring smoothness and reliability of linear movement.

In specific implementation, the number of the guide rods 32 is two, the number of the linear springs 50 is one, the linear springs 50 are arranged between the two guide rods 32, the lower convex guide posts 33 are arranged at corresponding positions of the lower surfaces of the pressing horizontal plates 31, the spring positioning grooves 42 are formed in the upper surfaces of the stress base plates 40, the tops of the linear springs 50 are sleeved on the lower convex guide posts 33 and are positioned, the bottoms of the linear springs 50 are arranged in the spring positioning grooves 42, and the positions of the linear springs 50 are stable and reliable;

the bottom of each guide rod 32 is sleeved with a fixing ring 80, the injection pen further comprises a linear measuring mechanism 90 (only schematically shown in the figure, the specific measuring mechanism is arranged according to space), and the linear measuring mechanism 90 is used for measuring the height direction displacement of the fixing ring 80, so that the height direction displacement of the pen point of the injection pen can be obtained, and subsequent data monitoring is facilitated;

the test mechanism further comprises an upper test shield 100, the upper test shield 100 covers the upper surface area of the whole mechanism, a guide through hole 101 is formed in the position part, corresponding to the guide pressing shell 10, of the upper test shield 100, and the guide through hole 101 facilitates the insertion operation of an injection pen.

The injection pen has the advantages that the pen point of the injection pen is inserted into the guide hole, the injection pen is pressed downwards by external force, pressure at the pen point is transmitted downwards to the pressure sensor, the pressure sensor feeds back a pressure value in real time until the pen point is damaged, the pressure sensor monitors the value, the injection pen is pressed downwards, the pressure value at the pen point position is fed back by the whole mechanism in real time until the pen point position is damaged, the corresponding pressure value is recorded and used as the pressure damage value of the experiment, the experiment is repeated again, after the experiments for a plurality of times, the minimum pressure damage value of the corresponding injection pen is obtained through scientific arrangement, the maximum pressure value during subsequent operation is enabled not to exceed the corresponding minimum pressure damage value, and the injection pen is ensured to work reliably and durably.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims

1. Destructive force testing mechanism, its characterized in that, it includes:

a pressure sensor;

the connecting seat comprises a pressing horizontal plate and at least two lower convex guide rods;

a stressed base plate;

and a linear spring which ensures the timely return of the mechanism;

the direction is pressed and is attached the casing and press in pressure sensor's atress upper surface, pressure sensor's lower surface one end is pressed and is attached the upper surface that presses and attaches the horizontal plate, press the lower part that attaches the horizontal plate and arrange two at least protruding down along its length direction the guide arm, the atress bottom plate is located press the below that attaches the horizontal plate to be arranged, the lower extreme of guide arm runs through hole on the atress bottom plate, press attach the horizontal plate with at least one has been arranged between the atress bottom plate linear spring.

2. The destructive force testing mechanism according to claim 1, wherein: the guide pressure-attaching shell comprises an upper shell and a lower shell, the center of the upper portion of the lower shell is recessed inwards to form a placing groove, absorbent cotton is placed in the placing groove, and a through guide hole is formed in the center of the upper shell.

3. The destructive force testing mechanism according to claim 1, wherein: the stress base plate is characterized in that connecting plates are fixedly connected to two sides of the stress base plate respectively, each connecting plate comprises a vertical portion and a horizontal portion, the bottom of each vertical portion is fixedly connected with the corresponding side edge of the stress base plate, the horizontal portion protruding towards the outside is arranged at the top of each vertical portion, a waist-shaped positioning hole penetrating in the thickness direction is formed in each horizontal portion, and the waist-shaped positioning holes are used for fixedly mounting the whole mechanism on corresponding stations.

4. The destructive force testing mechanism of claim 1, wherein: the through holes are internally provided with linear bearings, and the guide rods respectively penetrate through the linear bearings to be arranged.

5. The destructive force testing mechanism according to claim 1, wherein: every the bottom cover of guide arm is equipped with solid fixed ring, and it still includes sharp measurement mechanism, measures solid fixed ring's direction of height position through sharp measurement mechanism.

6. The destructive force testing mechanism according to claim 1, wherein: the test mechanism further comprises an upper test protection cover, wherein the upper test protection cover is arranged on the upper surface area of the whole mechanism, and a guide through hole is formed in the upper test protection cover corresponding to the position of the guide pressing shell.