CN209727885U - A sampling and titration device for drug analysis - Google Patents

Abstract

The utility model belongs to titration outfit technical field, in particular a kind of Pharmaceutical Analysis sampling titration outfit, including dropper and Capsule, junction between the dropper and Capsule is provided with connection component, the connection component includes outer seal sleeve, inner seal ring and support plate, the outer seal sleeve and inner seal ring are bonded in one end of Capsule, and inner seal ring is located at the inside of outer seal sleeve, the inside of the inner seal ring is integrally formed with support plate, and one end of the dropper is integrally formed with anti-skid bulge；Capsule is mounted on one end of dropper by connection component, outer seal sleeve is socketed in the outside of dropper, anti-skid bulge is close to the inner surface of outer seal sleeve simultaneously, increase the airtightness that dropper is connected with Capsule by connection component, the air inside dropper and Capsule is avoided to be leaked by junction, the stability that titration outfit uses is improved, while inner seal ring is fitted in the inner surface of dropper, improves the compactedness that inner seal ring is bonded with dropper.

Description

A sampling and titration device for drug analysis

technical field

The utility model belongs to the technical field of titration devices, in particular to a sampling titration device for drug analysis.

Background technique

The titration device is a liquid sampling device, an instrument used to draw or drop a small amount of liquid reagents. It consists of a rubber cap and a glass tube. The traditional titration device has poor airtightness between the dropper and the rubber head. The gas inside the rubber head is easily discharged from the joint, and when the deformation of the rubber head is too large, the liquid easily enters the inside of the rubber head, which makes the rubber head corrode and reduces the service life of the titration device.

Utility model content

In order to solve the above problems in the prior art, the utility model provides a sampling and titration device for drug analysis, which has the characteristics of good airtightness of the connection between the dropper and the rubber head, and can be sealed and closed when the liquid enters the top of the dropper.

In order to achieve the above object, the utility model provides the following technical solutions: a sampling and titration device for drug analysis, including a dropper and a rubber cap, a connection assembly is provided at the connection between the dropper and the rubber cap, and the connection assembly It includes an outer sealing sleeve, an inner sealing ring and a support plate. Both the outer sealing sleeve and the inner sealing ring are bonded to one end of the rubber cap, and the inner sealing ring is located inside the outer sealing sleeve, and the inside of the inner sealing ring is integrally formed There is a support plate, one end of the dropper is integrally formed with a non-slip protrusion, the inner sealing ring is installed inside the dropper, the outer sealing sleeve is sleeved on the outside of the dropper, and the outer sealing sleeve is wrapped in a non-slip Raised exterior.

Preferably, a sealing cover and a support ring are bonded inside the dropper, and a glass sealing ball is installed between the sealing cover and the support ring.

Preferably, the glass sealing ball is a hollow spherical structure, the sealing cover is a half-spherical structure, and a through hole is provided in the middle of the sealing cover.

Preferably, both the outer sealing sleeve and the inner sealing ring are annular structures, the inner diameter of the outer sealing sleeve is 2 mm smaller than the outer diameter of the dropper, and the outer diameter of the inner sealing ring is 2 mm larger than the inner diameter of the dropper.

Preferably, the support plate is a cross-shaped structure.

Preferably, the rubber cap is an elliptical spherical structure.

Preferably, the dropper is a tubular structure, and the end of the dropper that is different from the rubber cap is a tapered structure.

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

1. The rubber cap is installed on one end of the dropper through the connecting component, and the outer sealing sleeve is sleeved on the outside of the dropping tube. At the same time, the anti-slip protrusion is close to the inner surface of the outer sealing sleeve, which increases the airtightness of the connection between the dropping tube and the rubber cap through the connecting component. It can prevent the air inside the dropper and the rubber cap from leaking from the connection, which improves the stability of the titration device. At the same time, the inner sealing ring is attached to the inner surface of the dropper, and the integrally formed support plate inside the inner sealing ring improves the stability of the titration device. It improves the compactness of the fit between the inner sealing ring and the dropper, increases the reliability of the connection between the dropper and the rubber cap through the connecting component, increases the contact area between the dropper and the connecting component, and increases the stability of the rubber cap installed at one end of the dropper sex.

2. Through the sealing cover, support ring and glass sealing ball installed inside the dropper, the glass sealing ball is installed between the sealing cover and the support ring, which increases the stability of the glass sealing ball installed inside the dropper, and the liquid inside the dropper flows into When the upper end of the dropper is reached, the glass sealing ball is made to be close to the inner surface of the sealing cover, so that the sealing cover and the glass sealing ball block the upper end of the dropping tube, so as to prevent liquid backflow from entering the inside of the rubber cap.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute a limitation to the utility model. In the attached picture:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a three-dimensional structural schematic diagram of a dropper and a rubber cap in the utility model;

Fig. 3 is a schematic view of the structure of the rubber cap and the connection assembly in the utility model;

Fig. 4 is the sectional structure schematic diagram of line A-A in Fig. 1;

Fig. 5 is a schematic diagram of the top view structure of the sealing cover in the utility model;

Fig. 6 is a structural schematic diagram of a top view of the support ring in the utility model;

In the figure: 1. Dropper; 2. Rubber cap; 3. Connecting component; 4. Outer sealing sleeve; 5. Anti-slip protrusion; 6. Inner sealing ring; 7. Supporting plate; 8. Sealing cover; 9. Supporting ring ; 10, glass sealing ball.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Example

Please refer to Figures 1-6, the utility model provides the following technical solutions: a sampling and titration device for drug analysis, including a dropper 1 and a rubber cap 2, and a connection assembly 3 is provided at the connection between the dropper 1 and the rubber cap 2 , the connection assembly 3 includes an outer sealing sleeve 4, an inner sealing ring 6 and a support plate 7, the outer sealing sleeve 4 and the inner sealing ring 6 are bonded to one end of the rubber cap 2, and the inner sealing ring 6 is located inside the outer sealing sleeve 4 , the inside of the inner sealing ring 6 is integrally formed with a support plate 7, one end of the dropper 1 is integrally formed with an anti-slip protrusion 5, the inner sealing ring 6 is installed inside the dropper 1, and the outer sealing sleeve 4 is sleeved on the bottom of the dropper 1 outside, and the outer sealing sleeve 4 is wrapped on the outside of the anti-skid protrusion 5 .

In this embodiment, the rubber cap 2 is installed on one end of the dropper 1 through the connection assembly 3, and the outer sealing sleeve 4 is sleeved on the outside of the dropper 1, while the anti-slip protrusion 5 is close to the inner surface of the outer sealing sleeve 4, increasing the The airtightness of the connection between the dropper 1 and the rubber cap 2 through the connection assembly 3 prevents the air inside the dropper 1 and the rubber cap 2 from leaking from the joint, which improves the stability of the titration device. At the same time, the inner sealing ring 6 is attached to the dropper The inner surface of the tube 1 and the integrally formed support plate 7 inside the inner sealing ring 6 improve the compactness of the fitting of the inner sealing ring 6 and the dropper 1, and increase the connection between the dropper 1 and the rubber cap 2 through the connection assembly 3 The reliability increases the contact area between the dropper 1 and the connection assembly 3, and increases the stability of the rubber cap 2 installed at one end of the dropper 1.

Specifically, the inside of the dropper 1 is bonded with a sealing cover 8 and a support ring 9, and a glass sealing ball 10 is installed between the sealing cover 8 and the supporting ring 9. The glass sealing ball 10 is a hollow spherical structure, and the sealing cover 8 is divided into two parts. A spherical structure, and the middle part of the sealing cover 8 is provided with a through hole.

In this embodiment, through the sealing cover 8, the support ring 9 and the glass sealing ball 10 installed inside the dropper 1, the glass sealing ball 10 is installed between the sealing cover 8 and the support ring 9, and the glass sealing ball 10 is installed on the dropper. Stability inside the tube 1, when the liquid inside the dropper 1 flows into the upper end of the dropper 1, the glass sealing ball 10 is close to the inner surface of the sealing cover 8, so that the sealing cover 8 and the glass sealing ball 10 block the upper end of the dropping tube 1 , to prevent the liquid from flowing back into the inside of the rubber cap 2.

Specifically, both the outer sealing sleeve 4 and the inner sealing ring 6 are annular structures, the inner diameter of the outer sealing sleeve 4 is 2mm smaller than the outer diameter of the dropper 1, and the outer diameter of the inner sealing ring 6 is 2mm larger than the inner diameter of the dropper 1.

In this embodiment, the inner diameter of the outer sealing sleeve 4 is 2mm smaller than the outer diameter of the dropper 1, and the outer diameter of the inner sealing ring 6 is 2mm larger than the inner diameter of the dropper 1, which increases the contact between the dropper 1 and the outer sealing sleeve 4. The stability improves the reliability of the connection between the dropper 1 and the rubber cap 2.

Specifically, the support plate 7 is a cross-shaped structure.

In this embodiment, the support plate 7 with a cross-shaped structure increases the stability of the bonding between the inner sealing ring 6 and the inner surface of the dropper 1 .

Specifically, the rubber cap 2 has an elliptical spherical structure.

In this embodiment, the rubber cap 2 with an elliptical spherical structure facilitates the discharge of air inside the rubber cap 2 .

Specifically, the dropper 1 is a tubular structure, and the end of the dropper 1 different from the rubber cap 2 is a tapered structure.

In this embodiment, the end of the dropper 1 different from the rubber cap 2 has a tapered structure, which facilitates the liquid inside the dropper 1 to drip out.

Working principle and usage process of the utility model: when assembling, the user glues the support ring 9 inside the dropper 1, and puts a glass sealing ball 10 inside the dropper 1, and glues the sealing cover 8 on the dropper 1, so that the glass sealing ball 10 is located between the sealing cover 8 and the support ring 9, the rubber cap 2 is installed on one end of the dropper 1 through the connection assembly 3, and the inner sealing ring 6 is inserted into the inside of the dropper 1, Connect the outer sealing sleeve 4 to one end of the dropper 1. At this time, the anti-slip protrusion 5 is close to the inner surface of the outer sealing sleeve 4. During use, the user squeezes the rubber cap 2 to discharge the air inside the dropper 1. Insert one end of the dropper 1 below the liquid level, and slowly loosen the rubber cap 2, so that the liquid enters the inside of the dropper 1. When the liquid inside the dropper 1 touches the glass sealing ball 10, the glass sealing ball 10 is in the liquid Under the effect of buoyancy, it is attached to the surface of the sealing cover 8, so that the upper end of the dropper 1 is sealed.

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (7)

1. A sampling and titration device for drug analysis, comprising a dropper (1) and a rubber cap (2), characterized in that: a connection assembly is provided at the junction between the dropper (1) and the rubber cap (2) (3), the connection assembly (3) includes an outer sealing sleeve (4), an inner sealing ring (6) and a support plate (7), and the outer sealing sleeve (4) and the inner sealing ring (6) are all bonded At one end of the rubber cap (2), and the inner sealing ring (6) is located inside the outer sealing sleeve (4), the inside of the inner sealing ring (6) is integrally formed with a support plate (7), and the dropper ( One end of 1) is integrally formed with an anti-slip protrusion (5), the inner sealing ring (6) is installed inside the dropper (1), and the outer sealing sleeve (4) is sleeved on the outside of the dropper (1) , and the outer sealing sleeve (4) is wrapped on the outside of the anti-slip protrusion (5). 2. A kind of sampling and titration device for drug analysis according to claim 1, characterized in that: the inside of the dropper (1) is bonded with a sealing cover (8) and a support ring (9), and the sealing cover A glass sealing ball (10) is installed between (8) and the support ring (9). 3. A sampling and titration device for drug analysis according to claim 2, characterized in that: the glass sealing ball (10) is a hollow spherical structure, and the sealing cover (8) is a half-spherical structure , and the middle part of the sealing cover (8) is provided with a through hole. 4. A kind of sampling and titration device for drug analysis according to claim 1, characterized in that: the outer sealing sleeve (4) and the inner sealing ring (6) are annular structures, and the outer sealing sleeve (4) The inner diameter of the inner seal ring (6) is 2mm smaller than the outer diameter of the dropper (1), and the outer diameter of the inner sealing ring (6) is 2mm larger than the inner diameter of the dropper (1). 5. A sampling and titration device for drug analysis according to claim 1, characterized in that: the support plate (7) is a cross-shaped structure. 6 . A sampling and titration device for drug analysis according to claim 1 , characterized in that: the rubber cap ( 2 ) is an elliptical spherical structure. 7 . 7. A kind of sampling and titration device for drug analysis according to claim 1, characterized in that: the dropper (1) is a tubular structure, and the dropper (1) is different from one end of the rubber cap (2) It is a cone-shaped structure.