Nest plate structure

Abstract

The utility model discloses a nest plate structure which comprises a nest plate body, a plurality of containing cylinders used for containing plugs are arranged on the nest plate body, an inlet is formed in the upper end of each containing cylinder, an outlet is formed in the lower end of each containing cylinder, and the diameter of each inlet and the diameter of each outlet are smaller than the diameter of the sealing portion of each plug. And a barrel body of the accommodating barrel is bulged outwards. Compared with the prior art, the plug has the advantages that the plug is simple and reasonable in structure and convenient to machine, the barrel body of the containing barrel protrudes outwards, so that the inner space of the containing barrel is expanded from a cylindrical shape to a drum shape, and therefore when the plug is placed in the containing barrel, the inner wall of the containing barrel cannot extrude the sealing portion of the plug, and the risk that the sealing portion is damaged is reduced; the diameter of the inlet and the diameter of the outlet of the containing cylinder are smaller than the diameter of the sealing portion of the plug, and no matter the nest plate is placed forwards or reversely, it is guaranteed that the plug cannot fall out of the containing cylinder without external force.

Description

TECHNICAL FIELD

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

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

[0003] The plug of the pre-filled syringe is made of rubber or silica gel material as a standard part, so that the plug itself has certain elasticity, and its structure is as shown in Figure 5 The lower end of the plug 2 is conical structure, and the outer periphery of the plug 2 is provided with three sealing parts 2a (key working surface), and the inner recess 2b is arranged between the adjacent sealing parts 2a.

[0004] At present, the nest plate is often used to transfer the plug in the plug process, a plurality of cylindrical barrels are arranged on the nest plate, the plug 2 is extruded into the cylindrical barrel by using external force (the plug can be extruded into the nest plate in advance), the plug is fixed in the cylindrical barrel by using the friction force between the plug and the inner wall of the cylindrical barrel, then the nest plate is transferred above the syringe barrel filled with the drug, and then the plug is extruded from the cylindrical barrel by using external force and is inserted into the opening of the syringe barrel. However, since the plug needs to generate friction with the inner wall of the entire cylindrical barrel during extrusion and extrusion, the external force required for extrusion and extrusion is large, in addition, the sealing part of the plug is in a state of pressure deformation in the cylindrical barrel, and long-term pressure deformation may have certain influence on the sealing property thereafter, therefore the existing nest plate structure needs to be further improved. UTILITY MODEL CONTENTS

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

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

[0007] A nest plate structure comprises a nest plate body, a plurality of accommodating barrels for accommodating plugs are arranged on the nest plate body, the upper end of the accommodating barrel is provided with an inlet, the lower end of the accommodating barrel is provided with an outlet, the diameter of the inlet and the outlet is smaller than the diameter of the sealing part of the plug, and the barrel body of the accommodating barrel is bulged outward.

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

[0009] As improvement, the inner surface of the accommodating cylinder is continuous arc surface. With the continuous arc surface design, the smoothness of the inner surface of the accommodating cylinder is ensured, and the sealing part of the plug can be avoided from being damaged to the maximum extent.

[0010] As improvement, the inner surface of the cross section of the accommodating cylinder is circular arc surface.

[0011] As improvement, the inner surface of the cross section of the accommodating cylinder is elliptical arc surface.

[0012] As improvement, the lower end of the accommodating cylinder extends radially inward to form annular stopper, and the inner wall of the accommodating cylinder and the annular stopper are transitioned by arc. With the annular stopper, the sealing part of the plug can be shrunk inward before being squeezed into the syringe cylinder, so that the plug can enter the syringe cylinder more smoothly.

[0013] As improvement, the upper end of the accommodating cylinder and the nest plate body are transitioned by circular arc. The transition circular arc can guide the plug to be squeezed into the accommodating cylinder more smoothly.

[0014] As improvement, the nest plate body and the accommodating cylinder are integrated structure.

[0015] As improvement, the accommodating cylinders are arranged in matrix.

[0016] Compared with the prior art, the utility model has the advantages of:

[0017] The nest plate structure is simple and reasonable in structure, convenient to process, the barrel of the accommodating cylinder is bulged outward, so that the internal space of the accommodating cylinder is expanded outward from cylindrical shape to drum shape, when the plug is placed in the accommodating cylinder, the inner wall of the accommodating cylinder will not extrude the sealing part of the plug, and the risk of damage of the sealing part is reduced, and the diameters of the inlet and outlet of the accommodating cylinder are smaller than that of the sealing part of the plug, no matter the nest plate is placed in normal position or upside down, the plug will not fall out of the accommodating cylinder under the action of external force. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the three-dimensional structure diagram of the utility model embodiment one, and

[0019] Figure 2 is the three-dimensional structure diagram of another view of the utility model embodiment one, and

[0020] Figure 3 is the sectional structure diagram of the accommodating cylinder of the utility model embodiment one, and

[0021] Figure 4 is the sectional structure diagram of the accommodating cylinder of the utility model embodiment two, and

[0022] Figure 5 is the three-dimensional structure diagram of the plug.

[0023] The names of the reference numerals in the accompanying drawings of this utility model are:

[0024] Nest plate body 1, plug 2, sealing part 2a, concave part 2b, receiving cylinder 3, inlet 3a, outlet 3b, arc 3c, annular retaining edge 31. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings:

[0026] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0027] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0028] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0029] Example 1, as Figures 1 to 3 As shown, a nest board structure includes a nest board body 1, on which a plurality of receiving cylinders 3 for accommodating plugs 2 are provided. The upper end of the receiving cylinder 3 is provided with an inlet 3a, and the lower end of the receiving cylinder 3 is provided with an outlet 3b. The diameter of the inlet 3a and the outlet 3b is smaller than the diameter of the sealing part 2a of the plug 2, and the cylinder body of the receiving cylinder 3 bulges outward.

[0030] The inner surface of the receiving cylinder 3 is a continuous arc surface. The continuous arc surface design ensures the smoothness of the inner surface of the receiving cylinder 3, which can minimize the damage to the sealing part 2a of the plug 2.

[0031] In this embodiment, the inner surface of the cross-section of the receiving cylinder 3 is an arc surface.

[0032] As an extension, the inner surface of the cross-section of the receiving cylinder 3 can also be an elliptical arc surface.

[0033] The upper end of the receiving cylinder 3 transitions to the nest plate body 1 via an arc 3c. The arc 3c acts as a guide when the plug 2 is squeezed into the receiving cylinder 3, making the insertion of the plug 2 smoother, and also provides some protection for the sealing part 2a of the plug 2.

[0034] The nest plate body 1 and the receiving cylinder 3 are integral structures.

[0035] The container cylinders 3 are arranged in a matrix, that is, in a horizontal row of M × vertical column of N, where M and N are both positive integers. Figure 1 Only a portion of the nest plate is shown, in which the receiving cylinders 3 are distributed in a 2×2 matrix. This arrangement allows for sufficient space between adjacent receiving cylinders 3, facilitating the design of the plug 2 insertion and extrusion equipment.

[0036] As an extension, the container cylinders 3 can also be distributed in a honeycomb pattern. Specifically, the container cylinders 3 are placed at the six vertices and the center point of a regular hexagon and distributed throughout the entire nest plate body 1 in this way. In this distribution method, the container cylinders 3 are more compact, and more container cylinders 3 can be placed on the same area of ​​the nest plate body 1 than in a matrix distribution.

[0037] Example 2, as Figure 4 As shown, in this embodiment, the nest plate structure is based on the first embodiment. The lower end of the receiving cylinder 3 extends radially inward to form an annular baffle 31, and the inner wall of the receiving cylinder 3 and the annular baffle 31 adopt an arc transition.

[0038] When installing the stopper 2, it is squeezed out from top to bottom and into the syringe barrel. Because the lower end of the receiving cylinder 3 is provided with an annular baffle 31, the sealing part of the stopper 2 is blocked by the annular baffle 31 and shrinks inward before being squeezed into the syringe barrel, so that the stopper 2 can enter the syringe barrel more smoothly.

[0039] The nesting plate structure of this utility model features an outward-bulging housing cylinder 3, which expands the internal space of the housing cylinder 3 from a cylindrical shape to a drum shape. This prevents the inner wall of the housing cylinder 3 from compressing the sealing portion 2a of the plug 2 when the plug 2 is placed inside, reducing the risk of damage to the sealing portion 2a. The diameters of the inlet 3a and outlet 3b of the housing cylinder 3 are smaller than the diameter of the sealing portion 2a of the plug 2. This ensures that the plug 2 will not fall out of the housing cylinder 3 without external force, regardless of whether the nesting plate is placed upright or upside down, facilitating the transportation and stacking of nesting plates pre-inserted with the plug 2.

[0040] The above merely describes preferred embodiments of the present application, and is not intended to limit the implementation and protection scope of the present application. For those skilled in the art, it should be understood that any equivalent substitutions and obvious changes made according to the content of the present application and drawings should be included in the protection scope of the present application.

Claims

1. A nest plate structure comprising a nest plate body (1), characterized by: The nest plate body (1) is provided with a plurality of containing barrels (3) for containing the plug (2), the upper end of the containing barrel (3) is provided with an inlet (3a), the lower end of the containing barrel (3) is provided with an outlet (3b), the diameter of the inlet (3a) and the outlet (3b) is smaller than the diameter of the sealing part (2a) of the plug (2), and the barrel body of the containing barrel (3) is outwardly bulged.

2. The nest plate structure of claim 1, wherein: The inner surface of the containing barrel (3) is a continuous arc surface.

3. The nest plate structure of claim 2, wherein: The cross-section inner surface of the containing barrel (3) is a circular arc surface.

4. The nest plate structure of claim 2, wherein: The cross-section inner surface of the containing barrel (3) is an elliptical arc surface.

5. A nest plate structure according to claim 3 or 4, characterised in that: The lower end of the containing barrel (3) is radially inwardly extended 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.

6. The nest structure of claim 5, wherein: The upper end of the containing barrel (3) is transitioned with the nest plate body (1) through a circular arc (3c).

7. The nest structure of claim 6, wherein: The nest plate body (1) and the containing barrel (3) are in an integrated structure.

8. The nest structure of claim 7, wherein: The containing barrels (3) are in a matrix distribution.

Images