High-toughness high polymer material dropper based on inner and outer cover strong buckling structure

Abstract

The utility model belongs to the technical field of droppers, particularly relates to a dropper made of a high-toughness high polymer material based on an inner and outer cover strong buckling structure, and aims to solve the problems that a rubber cap of the dropper is easy to corrode and damage due to the fact that an existing dropper generally cannot be used for transferring strong acid or strong alkali solutions, and the rubber cap is not easy to damage when connected with the dropper. In order to solve the problems that in the prior art, existing droppers are connected in a simple sleeving mode and are not good in air tightness, the dropper comprises a tube body, a suction nozzle is arranged at the bottom of the tube body, the dropper further comprises a blocking mechanism, the blocking mechanism is installed at the top end of the tube body and communicated with the tube body, and the suction nozzle is arranged in the tube body. According to the utility model, a solution with strong corrosivity can be prevented from flowing into the rubber cap randomly, so that the rubber cap has good safety when the solution with strong corrosivity is used, and meanwhile, the rubber cap has good stability and air tightness when the rubber cap is mounted, so that the rubber cap has good practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of droppers, in particular to a dropper made of a high-toughness polymer material based on a strong snap structure of an inner and outer cap. Background Art

[0002] A dropper is a device used to measure liquids by dripping. Generally, a dropper consists of a bulb, a pipette, and a cap. Droppers with two or more components made of different materials are well-known, droppers with one or all components made of non-recyclable materials are well-known, and droppers made entirely or partially of plastic are well-known;

[0003] Currently, during chemical experiments, droppers generally cannot be used to transfer strong acid or strong base solutions, which easily causes corrosion and damage to the rubber caps of the droppers. Moreover, when the rubber caps are connected to the droppers, they are often simply sleeved, without good airtightness. Therefore, we propose a dropper made of a high-toughness polymer material based on a strong snap structure of an inner and outer cap to solve the above-mentioned problems. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages in the prior art that droppers generally cannot be used to transfer strong acid or strong base solutions, which easily causes corrosion and damage to the rubber caps of the droppers, and when the rubber caps are connected to the droppers, they are often simply sleeved, without good airtightness, and to propose a dropper made of a high-toughness polymer material based on a strong snap structure of an inner and outer cap.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A dropper made of a high-toughness polymer material based on a strong snap structure of an inner and outer cap, including a tube body, a suction nozzle is arranged at the bottom of the tube body, and the dropper further includes:

[0007] A blocking mechanism, the blocking mechanism is installed at the top of the tube body, and the blocking mechanism is communicated with the tube body;

[0008] An attracting mechanism, the attracting mechanism is snap-fitted with the blocking mechanism, and the attracting mechanism is used to suck the solution into the tube body or discharge the solution from the tube body.

[0009] In a possible design, the blocking mechanism includes a connection box fixedly installed at the top of the tube body, the connection box is communicated with the tube body, a support ring is fixedly installed in the connection box, a double-conical column is arranged through the support ring, the double-conical column is in close fit with the inner wall of the support ring, two limiting components are symmetrically arranged on the inner wall of the connection box, the two limiting components are respectively located above and below the support ring, the two limiting components are respectively in contact with the upper inclined surface and the lower inclined surface of the double-conical column, and the connection box is snap-fitted with the attracting mechanism.

[0010] In a possible design, the limiting component includes a plurality of support covers fixedly installed on the inner wall of the connection box at equal intervals. A ball head rod is slidably connected inside the support cover. One end of the ball head rod with a ball head extends into the connection box and contacts the corresponding inclined surface of the double conical column. A compression spring is sleeved on the ball head rod and is located inside the connection box. Two ends of the compression spring are respectively fixedly connected to the ball head rod and one side of the support cover. A connection pipe is fixedly installed on the top inner wall of the connection box. The top end of the connection pipe extends above the connection box and is connected to the suction mechanism.

[0011] In a possible design, the suction mechanism includes a rubber cap. A docking pipe is fixedly installed on the bottom inner wall of the rubber cap. The bottom end of the docking pipe extends below the rubber cap. The docking pipe is inserted into the connection pipe. A clamping assembly is connected to the docking pipe. The clamping assembly is connected to the top of the connection box.

[0012] In a possible design, the clamping assembly includes a conical ring fixedly sleeved on the docking pipe. The inclined surface of the conical ring slopes downward. A plurality of elastic buckles are fixedly installed on the top of the connection box at equal intervals. All the plurality of elastic buckles are clamped with the conical ring.

[0013] In a possible design, an insertion pipe is fixedly installed on the inner wall of the docking pipe. The bottom end of the insertion pipe extends into the connection pipe. The insertion pipe is in close fit with the inner wall of the connection pipe.

[0014] In this application, first, the docking pipe is inserted into the connection pipe. At this time, the insertion pipe can be inserted into the connection pipe. By using the close fit between the insertion pipe and the inner wall of the connection pipe, the rubber cap can be tightly connected to the connection box. And when the docking pipe is connected to the connection pipe, the inclined surface of the conical ring will squeeze the plurality of elastic buckles until the top of the elastic buckle moves above the conical ring. At this time, the elastic buckle can be elastically reset, so as to clamp the conical ring and position the rubber cap. After that, during use, press the rubber cap to make the gas in the rubber cap be delivered into the connection box, so as to apply pressure to the double conical column, make the double conical column move downward, and then push the plurality of ball head rods to move horizontally, so that the plurality of compression springs are in a stressed state. After pressing the rubber cap, insert the pipe body into the solution, and at the same time release the rubber cap. At this time, the rubber cap can be restored. The negative pressure in the rubber cap can suck the gas in the connection box into the rubber cap. At this time, the double conical column can move upward to release the blockage of the support pipe. And when the double conical column moves upward, the plurality of compression springs located above can be in a stressed state. The stressed compression springs can assist in pushing the double conical column to move back to its position and block the support ring, so as to prevent the solution from flowing into the rubber cap through the support ring.

[0015] Beneficial effects:

[0016] In the present utility model, for the dropper made of a high-toughness polymer material with a strong snap structure between the inner and outer caps, through the blocking mechanism, the double-conical column can be slidably connected to the support ring in a penetrating manner. Under normal conditions, the solution stored in the tube body will not flow into the suction mechanism, thereby preventing the suction mechanism from being corroded by strong acid or strong alkali solutions;

[0017] In the present utility model, for the dropper made of a high-toughness polymer material with a strong snap structure between the inner and outer caps, through the suction mechanism, after the docking tube and the connecting tube are inserted, the clamping assembly can be clamped at this time, so as to realize the installation and positioning of the rubber cap, and the rubber cap can be communicated with the connection box;

[0018] The present utility model can prevent the strong corrosive solution from flowing into the rubber cap randomly, thereby having good safety when using the strong corrosive solution. At the same time, when installing the rubber cap, it can have good stability and airtightness, so it has good practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a top-down three-dimensional schematic diagram of the overall structure of the dropper made of a high-toughness polymer material with a strong snap structure between the inner and outer caps proposed by the present utility model;

[0020] Figure 2 is a bottom-up three-dimensional schematic diagram of the overall structure of the dropper made of a high-toughness polymer material with a strong snap structure between the inner and outer caps proposed by the present utility model;

[0021] Figure 3 is a three-dimensional schematic diagram of the separation structure of the tube body and the rubber cap of the dropper made of a high-toughness polymer material with a strong snap structure between the inner and outer caps proposed by the present utility model;

[0022] Figure 4 is a three-dimensional schematic diagram of the sectional structure of the connection box of the dropper made of a high-toughness polymer material with a strong snap structure between the inner and outer caps proposed by the present utility model;

[0023] Figure 5 is a three-dimensional schematic diagram of the connection structure of the docking tube, the rubber cap and the insertion tube of the dropper made of a high-toughness polymer material with a strong snap structure between the inner and outer caps proposed by the present utility model.

[0024] In the figure: 1, tube body; 2, nozzle; 3, connection box; 4, connecting tube; 5, docking tube; 6, rubber cap; 7, conical ring; 8, elastic buckle; 9, support ring; 10, double-conical column; 11, support cover; 12, ball head rod; 13, compression spring; 14, insertion tube. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0026] Embodiment 1

[0027] Referring to Figures 1-5 , a dropper includes a tube body 1. A nozzle 2 is provided at the bottom of the tube body 1. The nozzle 2 is used to suck liquid, and the tube body 1 is used to store and transfer liquid.

[0028] At the top end of the tube body 1, a sealing mechanism is installed. The sealing mechanism includes a connection box 3. The connection box 3 is communicated with the tube body 1. A support ring 9 is fixedly installed in the connection box 3. A double-conical column 10 is penetrated through the support ring 9. The double-conical column 10 is in close fit with the inner wall of the support ring 9 to form a preliminary sealing effect.

[0029] Two limiting components are symmetrically arranged on the inner wall of the connection box 3. These two limiting components are respectively located above and below the support ring 9. Each limiting component includes a plurality of support covers 11. A ball head rod 12 is slidably connected in the support cover 11. One end of the ball head rod 12 extends into the connection box 3 and contacts the corresponding inclined surface of the double-conical column 10. A compression spring 13 is sleeved on the ball head rod 12. The two ends of the compression spring 13 are respectively fixedly connected to the ball head rod 12 and the support cover 11. In this way, when the double-conical column 10 is not subjected to external force, the compression spring 13 elastically supports the double-conical column 10 through the ball head rod 12 to keep it stationary, thereby realizing the sealing and plugging of the support ring 9.

[0030] A connecting pipe 4 is fixedly installed on the top inner wall of the connection box 3. The connecting pipe 4 is used to communicate with the suction mechanism.

[0031] The suction mechanism includes a rubber cap 6. A docking pipe 5 is fixedly installed on the bottom inner wall of the rubber cap 6. The bottom end of the docking pipe 5 extends below the rubber cap 6 and is inserted into the connecting pipe 4. In order to realize the stable connection between the docking pipe 5 and the connecting pipe 4, this technical solution designs a clamping component. The clamping component includes a conical ring 7 fixedly sleeved on the docking pipe 5, and a plurality of elastic buckles 8 fixedly installed at equal intervals on the top of the connection box 3. When the docking pipe 5 is inserted into the connecting pipe 4, the inclined surface of the conical ring 7 will squeeze the elastic buckles 8 to move them outward. When the conical ring 7 completely passes through the elastic buckles 8, the elastic buckles 8 will elastically reset, thereby realizing the clamping of the conical ring 7 and further fixing the rubber cap 6.

[0032] This application can be used in the technical field of droppers and can also be used in other fields applicable to this application.

[0033] Embodiment 2

[0034] Refer toFigure 5 , improved on the basis of Embodiment 1: A dropper made of a high-toughness polymer material with a strong snap-fit structure between the inner and outer caps, which is applied to the technical field of droppers. In addition, an insertion tube 14 is fixedly installed on the inner wall of the docking tube 5, and the bottom end of the insertion tube 14 extends into the connecting tube 4 and is in close fit with the inner wall of the connecting tube 4. This design can achieve good sealing of the connecting tube 4 and prevent gas leakage when the rubber cap 6 is squeezed.

[0035] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A dropper made of a high-toughness polymer material with an inner and outer cover strong buckle structure, comprising a tube body (1), a suction nozzle (2) being arranged at the bottom of the tube body (1), characterized in that: This dropper also includes: A blocking mechanism, the blocking mechanism being mounted on the top of the tube body (1), the blocking mechanism being in communication with the tube body (1); A suction mechanism, the suction mechanism being clamped with the blocking mechanism, and the suction mechanism being used to suck the solution into the tube body (1) or discharge the solution from the tube body (1); The blocking mechanism comprises a connection box (3) fixedly mounted on the top end of the tube body (1), the connection box (3) being connected to the tube body (1), a support ring (9) being fixedly mounted inside the connection box (3), a double-conical column (10) being arranged through the support ring (9), the double-conical column (10) being tightly fitted to the inner wall of the support ring (9), two limit assemblies being symmetrically arranged on the inner wall of the connection box (3), the two limit assemblies being respectively located above and below the support ring (9), the two limit assemblies being respectively in contact with the upper inclined surface and the lower inclined surface of the double-conical column (10), and the connection box (3) being clamped with the suction mechanism; The limit assembly comprises a plurality of support covers (11) fixedly mounted at equal intervals on the inner wall of the connection box (3); a ball head rod (12) is slidably connected inside the support cover (11); one end of the ball head of the ball head rod (12) extends into the connection box (3) and contacts the inclined surface corresponding to the double-conical column (10); a compression spring (13) located in the connection box (3) is sleeved on the ball head rod (12); two ends of the compression spring (13) are respectively fixedly connected to the ball head rod (12) and one side of the support cover (11); a connection pipe (4) is fixedly mounted on the inner wall of the top of the connection box (3); the top end of the connection pipe (4) extends to the top of the connection box (3) and is connected to the suction mechanism.

2. The dropper made of high-toughness polymer material based on the strong buckle structure of inner and outer covers according to claim 1, characterized in that: The suction mechanism comprises a rubber cap (6), a butt joint pipe (5) is fixedly mounted on the inner wall of the bottom of the rubber cap (6), the bottom end of the butt joint pipe (5) extends to below the rubber cap (6), the butt joint pipe (5) is plugged into the connecting pipe (4), a card assembly is connected to the butt joint pipe (5), and the card assembly is connected to the top of the connecting box (3).

3. The dropper of high-toughness polymer material based on the strong buckle structure of inner and outer covers according to claim 2 is characterized in that: The clamping assembly comprises a conical ring (7) fixedly sleeved on the butt-jointing pipe (5), the inclined surface of the conical ring (7) being inclined downward, and a plurality of elastic buckles (8) being fixedly mounted at equal intervals on the top of the connection box (3), the plurality of elastic buckles (8) being clamped with the conical ring (7).

4. The dropper made of high-toughness polymer material based on the strong buckle structure of inner and outer covers according to claim 2 or 3, characterized in that: An insert pipe (14) is fixedly mounted on the inner wall of the butt-jointing pipe (5), the bottom end of the insert pipe (14) extends into the connecting pipe (4), and the insert pipe (14) is tightly fitted to the inner wall of the connecting pipe (4).

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