Laboratory rubber head dropper structure

Abstract

The utility model belongs to the technical field of laboratory rubber-head droppers, and discloses a laboratory rubber-head dropper structure which comprises a tube body, a rubber cap and a tube sleeve, the rubber cap sleeves the top end of the tube body, a group of annular rubber strips are adhered to the outer side of the rubber cap, a memory metal wire is arranged in each annular rubber strip in a penetrating manner, the tube sleeve movably sleeves the tube body, and the tube body is sleeved with the tube sleeve. Supporting rods are fixedly connected to the outer walls of the two sides of the pipe sleeve, and lifting lugs are rotationally connected to the supporting rods. An experimenter can firmly lift the whole dropper by inserting a thumb and an index finger into the two lifting lugs respectively and then pinch the rubber cap in a matched mode, so that the tube body, the tube sleeve, the supporting rod, the lifting lugs and the rubber cap form a firm whole, the stability of the dropper can be improved, and a solution can be better sucked or dripped; by utilizing the elastic recovery performance of the memory metal wire in the annular rubber strip, the rubber cap can be assisted to better recover, so that the suction force of the rubber cap in the recovery process can be improved, and solutions with different densities can be sucked.

Description

Technical Field

[0001] The present application relates to the technical field of laboratory rubber-tipped droppers, and more specifically, to a laboratory rubber-tipped dropper structure. Background Art

[0002] The rubber-tipped dropper is an instrument for sucking and dripping a small amount of liquid. It is often used in laboratory experiments. The rubber-tipped dropper consists of a rubber cap and a glass dropper. By squeezing the rubber cap, the air in the dropper is discharged, so that the liquid can be sucked. When using, the rubber-tipped dropper should be suspended vertically 0.5 cm above the container mouth. It should not be inserted into the container or touch the container wall to avoid contaminating the dropper.

[0003] There are many types of rubber-tipped droppers on the market. However, most of them lack auxiliary stabilizing structures, especially when experimenters use some longer rubber-tipped droppers, they need to pay more attention. Secondly, when using rubber-tipped droppers to absorb some thicker solutions, due to the limited elastic recovery ability of the rubber cap, the absorption effect is often not good enough, which needs further improvement. Utility Model Content

[0004] In order to solve the above problems, the present application provides a laboratory rubber-tipped dropper structure.

[0005] The present application provides a laboratory rubber-tipped dropper structure that adopts the following technical solution:

[0006] A laboratory rubber-tipped dropper structure comprises a tube body, a rubber cap and a tube sleeve, wherein the rubber cap is sleeved on the top of the tube body, and a group of annular rubber strips are bonded to the outside of the rubber cap, and a memory metal wire is passed through the inside of each annular rubber strip. The tube sleeve is movably sleeved on the tube body, and support rods are fixedly connected to the outer walls on both sides of the tube sleeve, and lifting ears are rotatably connected to the support rods.

[0007] Furthermore, a ring-shaped protrusion is provided at the top end of the tube body, and the outer diameter of the protrusion is greater than the inner diameter of the tube sleeve.

[0008] Furthermore, the lifting ear is a semi-closed arc-shaped structure, and the upper tail end of the lifting ear is straight.

[0009] Furthermore, the bottom end of the tube body is conical, and a scale line is provided on the outer wall of the tube body;

[0010] Furthermore, two ends of the memory metal wire are fixedly connected.

[0011] In summary, the present application includes at least one of the following beneficial technical effects:

[0012] (1) The experimenter can lift the dropper firmly by inserting the thumb and index finger into the two lifting ears respectively, and then pinch the rubber cap to make the tube body, tube sleeve, support rod, lifting ears and rubber cap form a solid whole, which can improve the stability of the dropper and facilitate the absorption or dripping of the solution; by utilizing the elastic recovery performance of the memory metal wire in the annular rubber strip, the rubber cap can be assisted to recover better, which can improve the suction force of the rubber cap during the recovery process, so as to absorb solutions of different viscosities.

[0013] (2) According to the needs of the situation, the experimenter can directly lift the tube body by pinching the rubber cap to make the tube body detach from the tube sleeve. In this way, the tube body and the rubber cap can be used directly as a whole, which has various uses. The annular rubber strip bonded to the outside of the rubber cap can play an anti-slip role, thereby reducing the possibility of the rubber cap and the tube body slipping from the experimenter's fingers. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a partial cross-sectional view of the utility model.

[0016] Description of the numbers in the figure:

[0017] 1. Tube body; 11. Scale line; 12. Protrusion; 2. Rubber cap; 3. Annular rubber strip; 31. Memory metal wire; 4. Tube sleeve; 5. Support rod; 6. Lifting ear. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0019] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0020] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0021] The following is combined with Figure 1-2 This application is described in further detail.

[0022] The present application embodiment discloses a laboratory rubber tip dropper structure, please refer to Figure 1 , comprising a tube body 1, a rubber cap 2 and a tube sleeve 4, the rubber cap 2 is sleeved on the top of the tube body 1, so that the rubber cap 2 and the tube body 1 form a sealed whole. It can be understood that the bottom end of the tube body 1 is conical, and a section of scale lines 11 are provided on the outer wall of the tube body 1; it should be noted that in order to enhance the anti-slip performance of the rubber cap 2, a group of annular rubber strips 3 are bonded to the outer side of the rubber cap 2 to reduce the possibility of the rubber cap 2 and the tube body 1 as a whole slipping from the fingers of the experimenter; combined Figure 2 As shown, it should be further explained that, in order to improve the overall strength of the rubber cap 2 and the annular rubber strip 3, a memory metal wire 31 is passed through the interior of each annular rubber strip 3, and the two ends of the memory metal wire 31 are fixedly connected. When the experimenter pinches the rubber cap 2 and gradually relaxes his fingers, the elastic recovery performance of the memory metal wire 31 in the annular rubber strip 3 can be utilized to assist the rubber cap 2 to recover better, thereby improving the suction force of the rubber cap 2 during the recovery process, so as to absorb solutions of different viscosities.

[0023] Please combine Figure 1 and Figure 2 It should be noted that the tube sleeve 4 is movably sleeved on the tube body 1, and the outer walls of both sides of the tube sleeve 4 are fixedly connected with support rods 5, and the support rods 5 are rotatably connected with lifting ears 6. The experimenter can firmly lift the dropper as a whole by inserting the thumb and index finger into the two lifting ears 6 respectively, and then pinch the rubber cap 2 to make the tube body 1, the tube sleeve 4, the support rod 5, the lifting ears 6 and the rubber cap 2 form a solid whole, which can improve the stability of the dropper, so as to better absorb or drip the solution; it should be supplemented that the top of the tube body 1 is provided with an annular protrusion 12, the protrusion 12 is integrally formed with the tube body 1, and the outer diameter of the protrusion 12 is larger than the inner diameter of the tube sleeve 4, which can prevent the tube body 1 from falling from the tube sleeve 4; please refer to Figure 1It should be further explained that the lifting ear 6 is a semi-enclosed arc-shaped structure, and the upper tail end of the lifting ear 6 is straight. The arc-shaped structure can facilitate the lifting ear 6 to fit the experimenter's fingers, thereby improving the comfort of the experimenter's fingers, and the lifting ear 6 with a straight upper tail end can also be used as a hook. When it is not needed, the pipe sleeve 4, the support rod 5 and the lifting ear 6 can be hung as a whole.

[0024] The implementation principle of the laboratory rubber-tipped dropper structure of the present application embodiment is as follows: when the dropper needs to be used, first, the experimenter can insert the thumb and index finger into the two lifting ears 6 respectively to firmly lift the dropper as a whole, then pinch the rubber cap 2 with the thumb and index finger, and insert the bottom end of the tube body 1 into the solution to be used, and then release the thumb and index finger to release the squeeze on the rubber cap 2. In this process, the rubber cap 2 itself recovers elastically, so that the solution is sucked into the tube body 1, and the annular rubber strip 3 is used to make the rubber cap 2 elastically recover itself, so that the solution is sucked into the tube body 1, and the rubber cap 2 is elastically restored by the annular rubber strip 3. The elastic recovery performance of the internal memory metal wire 31 can assist the rubber cap 2 to recover better, thereby improving the suction force of the rubber cap 2 during the recovery process so as to absorb solutions of different viscosities; according to the needs of the situation, the tube body 1 can be lifted up by directly pinching the rubber cap 2, so that the tube body 1 is detached from the tube sleeve 4, so that the tube body 1 and the rubber cap 2 as a whole can be used directly, and the annular rubber strip 3 bonded to the outside of the rubber cap 2 can play an anti-slip role, thereby reducing the possibility of the rubber cap 2 and the tube body 1 as a whole slipping from the fingers of the experimenter.

[0025] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A laboratory rubber-tipped dropper structure, comprising a tube body (1), a rubber cap (2) and a tube sleeve (4), characterized in that: The rubber cap (2) is sleeved on the top of the tube body (1), and a group of annular rubber strips (3) are bonded to the outer side of the rubber cap (2), and a memory metal wire (31) is passed through the interior of each annular rubber strip (3). The tube sleeve (4) is movably sleeved on the tube body (1), and the outer walls on both sides of the tube sleeve (4) are fixedly connected to support rods (5), and the support rods (5) are rotatably connected to lift ears (6).

2. A laboratory rubber-tipped dropper structure according to claim 1, characterized in that: The top end of the tube body (1) is provided with an annular protrusion (12), and the outer diameter of the protrusion (12) is greater than the inner diameter of the tube sleeve (4).

3. A laboratory rubber-tipped dropper structure according to claim 1, characterized in that: The lifting ear (6) is a semi-closed arc-shaped structure, and the upper tail end of the lifting ear (6) is straight.

4. A laboratory rubber-tipped dropper structure according to claim 1, characterized in that: The bottom end of the tube body (1) is conical, and a scale line (11) is provided on the outer wall of the tube body (1).

5. A laboratory rubber-tipped dropper structure according to claim 1, characterized in that: The two ends of the memory metal wire (31) are fixedly connected.

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