Nest plate

Abstract

The utility model discloses a nest plate which comprises a nest plate body, a plurality of containing cylinders used for containing plugs are arranged on the nest plate body, the inner diameter of each containing cylinder is larger than the diameter of the sealing portion of the corresponding plug, a limiting portion is arranged in the middle of the inner wall of each containing cylinder in an inward protruding mode, and when the plugs are arranged in the containing cylinders, the limiting portions are arranged on the limiting portions. And the limiting part extends into the inner concave part between the sealing parts of the plug to form limiting. The plug has the advantages that the plug is simple and reasonable in structure and convenient to machine, the containing barrel with the inner diameter larger than the diameter of the sealing portion of the plug is adopted, and therefore when the plug is placed in the containing barrel, the inner wall of the containing barrel can be prevented from extruding the sealing portion, and the risk that the sealing portion is damaged is reduced; the inner wall of the containing cylinder is provided with the limiting part capable of entering the inner concave part to keep the plug in the containing cylinder, and the plug cannot fall out of the containing cylinder under the condition of no external force no matter the nest plate is placed forwards or reversely.

Description

TECHNICAL FIELD

[0001] The utility model relates to pre-filled syringe plug transfer technical field, specifically a nest plate. BACKGROUND

[0002] Pre-filled syringe, such as the patent application (TW202348259A) disclosed, mainly including syringe barrel and plug, pharmaceutical factory fills the drug into the syringe barrel under aseptic condition, then through plug machine (including manual machine, semi-automatic machine and full-automatic machine) sealed fixed in the opening of syringe barrel.

[0003] The plug of pre-filled syringe is as a kind of standard parts, generally made of rubber or silica gel material, so that plug itself has certain elasticity, its structure is as shown in Figure 5 Lower end of plug 2 is conical structure, and outer periphery of plug 2 is provided with 3 circles of sealing part 2a, and inner recess 2b is arranged between adjacent sealing part 2a.

[0004] At present, nest plate is often used to transfer plug in the process of plugging, nest plate is provided with a plurality of cylindrical barrels, plug 2 is extruded into cylindrical barrel by external force (plug can be pre-extruded into nest plate), plug is fixed in cylindrical barrel by using the friction force between plug and inner wall of cylindrical barrel, then nest plate is transferred to the upper of syringe barrel filled with drug, then plug is extruded from cylindrical barrel by using external force and is inserted into the opening of syringe barrel. However, because plug needs to generate friction with the inner wall of entire cylindrical barrel in the process of extruding and extruding, the required external force for extruding and extruding is large;In addition, the sealing part of plug is in the state of pressure deformation in cylindrical barrel, and long-time pressure deformation can have certain influence on its subsequent sealing performance, therefore, the structure of existing nest plate needs to be further improved. UTILITY MODEL CONTENTS

[0005] The utility model aims at making up for the above-mentioned shortage, and discloses a nest plate with simple and reasonable structure, convenient processing and the ability to avoid damage to the sealing part of plug.

[0006] The technical scheme of the utility model is implemented as follows:

[0007] A nest plate comprises a nest plate body, a plurality of accommodating barrels for accommodating plugs are arranged on the nest plate body, the inner diameter of the accommodating barrel is greater than the diameter of the sealing part of the plug, and a limiting portion is protruded inward in the middle of the inner wall of the accommodating barrel to form limiting when the plug is placed in the accommodating barrel.

[0008] The measures for further optimizing the technical scheme are as follows:

[0009] As improvement, the limiting part is a plurality of limiting convex points arranged uniformly.

[0010] As improvement, the upper part of the limiting convex point is provided with a hemispherical part, and the top end of the hemispherical part is provided with a tapered part. In this way, a guide structure is formed, and the insertion of the plug is more smooth and efficient.

[0011] As improvement, the upper part of the limiting convex point is provided with a hemispherical part, and the top end of the hemispherical part is provided with a tapered part. In this way, a guide structure is formed, and the insertion of the plug is more smooth and efficient.

[0012] As improvement, the number of the limiting convex points is 4-8.

[0013] As improvement, the lower end of the accommodating cylinder extends radially inward to form an annular stop, and the inner wall of the accommodating cylinder and the annular stop are transitioned by an arc. The annular stop makes the plug contract inward before being inserted into the syringe cylinder, so that the plug can enter the syringe cylinder more smoothly.

[0014] As improvement, the upper end of the accommodating cylinder and the nest plate body are transitioned by a circular arc.

[0015] As improvement, the nest plate body, the accommodating cylinder and the limiting part are in an integrated structure.

[0016] As improvement, the accommodating cylinder is in a matrix distribution.

[0017] The advantages of the utility model compared with the prior art are:

[0018] The utility model discloses a nest plate, simple structure, reasonable, convenient processing adopts the accommodating cylinder of the diameter of the sealing part of the plug, when the plug is placed in the accommodating cylinder, the inner wall of the accommodating cylinder can avoid extruding the sealing part, reduces the risk of damage of the sealing part, and the limiting part that can enter the inner recess is arranged on the inner wall of the accommodating cylinder to keep the plug in the accommodating cylinder, no matter the nest plate is placed or is placed reversely, under the action of no external force, the plug will not fall out of the accommodating cylinder. ACCURACY

[0019] Figure 1 It is the three-dimensional structure diagram of the utility model embodiment;

[0020] Figure 2 It is the three-dimensional structure diagram of another view of the utility model embodiment;

[0021] Figure 3 It is the sectional structure diagram of the accommodating cylinder of the utility model embodiment;

[0022] Figure 4 It is Figure 3 The enlarged view of A part in the middle

[0023] Figure 5 is a sectional view of the plug.

[0024] The names of the reference signs in the drawings of the utility model are:

[0025] Nest plate body 1, plug 2, sealing part 2a, inner recess 2b, containing cylinder 3, circular arc 3a, annular baffle 31, limiting convex point 4, hemispherical part 4a, conical part 4b. DETAILED DESCRIPTION

[0026] The utility model is further described in detail below in combination with the drawings:

[0027] The following description is used to disclose the utility model so that the person skilled in the art can implement the utility model. The preferred embodiments in the following description are only as examples, and other obvious modifications can be thought of by the person skilled in the art. The basic principles of the utility model defined in the following description can be used in other implementation schemes, modification schemes, improvement schemes, equivalent schemes and other technical schemes without departing from the spirit and scope of the utility model.

[0028] The person skilled in the art should understand that in the disclosure of the utility model, the orientation or position indicated by the terms "longitudinal", "transverse", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, which is only for the simplified description of the utility model for the convenience of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore the above-mentioned terms cannot be understood as a limitation on the utility model.

[0029] It can be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

[0030] As shown in Figures 1 to 4 A nest plate, comprising a nest plate body 1, a plurality of containing cylinders 3 for containing plugs 2 are arranged on the nest plate body 1, the inner diameter of the containing cylinder 3 is greater than the diameter of the sealing part 2a of the plug 2, a limiting part is arranged on the inner wall of the middle part of the containing cylinder 3 and protrudes inwardly, when the plug 2 is placed in the containing cylinder 3, the limiting part extends into the inner recess 2b between the sealing part 2a of the plug 2 to form limiting.

[0031] The limiting part is a plurality of limiting convex points 4 arranged at uniform intervals. Point limiting can reduce the resistance when the plug 2 is extruded into the containing cylinder 3, so that the extrusion of the plug 2 is more smooth and efficient.

[0032] The upper part of the limiting convex point 4 is provided with a hemispherical part 4a, and the top end of the hemispherical part 4a is provided with a tapered part 4b. The stroke guiding structure of the tapered part 4b and the hemispherical part 4a is more beneficial to the extrusion of the plug 2.

[0033] As an extension, the upper part of the limiting convex point 4 is in a slope structure. The slope structure can also play a guiding role.

[0034] The number of the limiting convex point 4 is 4-8. The number of the limiting convex point 4 should not be too much. Setting too many limiting convex points 4 will increase the resistance when the plug 2 is extruded, which will cause the risk of damage to the sealing part 2a.

[0035] As an extension, a short and small limiting strip can also be used as a limiting part.

[0036] The lower end of the containing cylinder 3 extends radially inward to form an annular stop edge 31, and the inner wall of the containing cylinder 3 and the annular stop edge 31 adopt an arc-shaped transition.

[0037] The upper end of the containing cylinder 3 and the nest plate body 1 are transitioned through a circular arc 3a. The circular arc 3a can play a guiding role when the plug 2 is extruded into the containing cylinder 3.

[0038] The nest plate body 1, the containing cylinder 3, and the limiting part are in an integrated structure.

[0039] The containing cylinder 3 is in a matrix distribution. That is, it is arranged in a horizontal row Mx vertical column N manner, where M and N are both positive integers. Figure 1 Only a part of the nest plate is shown, and the containing cylinder 3 is in a 3x3 matrix distribution. In this way, the adjacent containing cylinders 3 have a certain space, which facilitates the design of the plug 2 extrusion and extrusion equipment.

[0040] As an extension, the containing cylinder 3 can also be distributed in a honeycomb shape. Specifically, the containing cylinder 3 is arranged at the six vertices of a regular hexagon and the center point, and is distributed in this way on the entire nest plate body 1. In this distribution manner, the containing cylinders 3 are more compact, and more containing cylinders 3 can be arranged on the same area of the nest plate body 1 than the matrix distribution.

[0041] The utility model discloses a nest plate, it adopts the containing cylinder 3 of the diameter of the sealing part 2a place of the inner diameter of plug 2 is greater than, like this when plug 2 is placed in containing cylinder 3, can avoid the extrusion of containing cylinder 3 inner wall to sealing part, reduces the risk of sealing part damage. Plug 2 is extruded into containing cylinder 3 under the action of external force, until the limiting portion is placed in the inner recess 2b between the sealing part 2a of plug 2, like this, the limiting portion is limited by the sealing part 2a of both sides and forms the limit (utilizes the inner recess 2b between the sealing part 2a of plug 2 and the limiting portion and forms the limit), no matter nest plate is right or is reversed, under the action of no external force, plug 2 will not fall out from containing cylinder 3. When installing plug 2, extrude from up to down to plug 2 and extrude into syringe cylinder. Because the lower end of containing cylinder 3 is provided with annular baffle 31, makes the sealing part of plug 2 shrink inwards and is blocked by annular baffle 31 before extruding into syringe cylinder, makes plug 2 can more smoothly enter syringe cylinder.

[0042] The above is only the preferred embodiment of the utility model, and does not limit the implementation and protection scope of the utility model, and for the person skilled in the art, it should be realized that the scheme obtained by equivalent replacement and obvious change of the utility model specification and drawing content should be contained in the protection scope of the utility model.

Claims

1. A nest plate comprising a nest plate body (1), characterized in that: The nest plate body (1) is provided with a plurality of containing barrels (3) for containing the plug (2), the inner diameter of the containing barrel (3) is greater than the diameter of the sealing part (2a) of the plug (2), the inner wall of the containing barrel (3) is inwardly convexly provided with a limiting part, when the plug (2) is placed in the containing barrel (3), the limiting part extends into the inner recess (2b) between the sealing part (2a) of the plug (2) to form limiting.

2. A nest panel according to claim 1, characterised in that: The limiting part is a plurality of uniformly spaced limiting convex points (4).

3. A nest panel according to claim 2, characterised in that: The upper part of the limiting convex point (4) is provided with a hemispherical part (4a), and the top end of the hemispherical part (4a) is provided with a conical part (4b).

4. A nest panel according to claim 2, characterised in that: The upper part of the limiting convex point (4) is in an inclined surface structure.

5. A nest panel according to claim 3 or 4, characterised in that: The number of the limiting convex points (4) is 4-8.

6. A nest panel according to claim 5, characterised in that: The lower end of the containing barrel (3) extends radially inwardly to form an annular stop edge (31), and the inner wall of the containing barrel (3) and the annular stop edge (31) are arc-shaped transitioned.

7. A nest panel according to claim 6, characterised in that: The upper end of the containing barrel (3) is transitioned with the nest plate body (1) through a circular arc (3a).

8. A nest panel according to claim 7, characterised in that: The nest plate body (1), the containing barrel (3) and the limiting part are in an integrated structure.

9. A nest panel according to claim 8, characterised in that: The containing barrel (3) is in a matrix distribution.

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