JP3176329U - Caps for scientific glassware - Google Patents

Abstract

The mouth tube portion of a physics and chemistry glass instrument can be sealed and the unplugging operation can be performed smoothly and easily.
A glass wire main body 10 that is hermetically fitted to two mouth tube portions 20 of a physics and chemistry glass instrument, and a knob head 12 that extends from a proximal end portion of the plug main body. A plug 1 for a physics and chemistry glass instrument in which a main body is inserted into a mouth tube portion and tightly plugged, and knurled 15 is applied to the outer peripheral wall surface of the head. The outer peripheral wall surface of the head is provided with an anti-slip function by knurling. Therefore, the unplugging operation can be performed easily, smoothly and satisfactorily.
[Selection] Figure 1

Description

  The present invention relates to a stopper for a physicochemical glass instrument that seals the mouth tube portion of various physicochemical glass instruments. In more detail, a stopper for a physics and chemistry glass instrument that seals the mouth tube of a test tube, flask, sample bottle, separatory funnel, distillation or fractionator (apparatus), reactor (apparatus), and other various physics and chemistry glass instruments About.

  As shown in FIG. 4, a conventional stopper 50 for a physics and chemistry glass instrument is generally made of a glass stopper body 51 and a knob head 53 extending from the base end of the stopper body 51 through a neck 52. (See, for example, Patent Document 1).

  The plug 50 is a plug main body 51 that is removably inserted into a mouth tube portion of a physicochemical glass instrument (not shown) so as to be tightly plugged. For this reason, the plug body 51 is polished by, for example, rubbing the inner peripheral wall surface of the mouth pipe part and the outer peripheral wall surface of the plug body so as to fit and airtightly fit with the mouth pipe part. The plug body is formed in a tapered cone shape, and the inner peripheral wall surface of the mouth tube portion is formed in a tapered shape that matches the plug body. The outer peripheral wall surface of the knob head 53 is formed as a smooth surface.

  The conventional plug 50 is configured as described above. As described above, the plug main body 51 is fitted into the mouth tube portion and sealed. As a result, the mouth tube portion is hermetically sealed while being hermetically sealed. Further, when pulling out the plug 50 from the mouth tube portion, it is performed by grasping the head for picking by hand or by grasping and pulling.

No. 6-47800

  As described above, the stopper for the physics and chemistry glass appliance is one in which the stopper body 51 is fitted into the mouth tube portion and sealed. For this reason, the plug body is pushed into the mouth tube portion fairly strongly to be closed. Therefore, when removing the plug, it is difficult to remove the plug even if the head 53 is gripped and the plug is pulled straight. Therefore, the plugging work is usually performed by pulling while turning the plug (plug body).

  However, the outer peripheral wall surface of the picking head 53 of the conventional stopper 50 is formed into a smooth surface and a disk shape. Therefore, since the head 53 is slippery, it is difficult to pick and rotate the head 53. As a result, it takes time to perform the bottle opening operation, and sometimes the glassware is inadvertently used when performing the opening operation. There is also a risk of damage.

  The present invention has been made in view of the above circumstances, and it is possible to seal the mouth tube portion of the physics and chemistry glass appliance with good airtightness, and to make the unplugging operation smooth and easy. Is intended to provide.

In order to achieve the above object, one of the present inventions (first invention) includes a glass plug body that is airtightly fitted to a mouth tube portion of a physics and chemistry glass instrument, and a base end portion of the plug body. A plug for a physics and chemistry glass instrument that has a knob head that is integrally extended, and that is plugged into the mouth tube portion so as to be removable, and tightly plugged.
A knurling process is performed on substantially the entire outer peripheral wall surface of the knob head.

  Of the present inventions, another one of the inventions (second invention) is a plug for a physics and chemistry glass instrument according to the first invention, wherein the outer peripheral wall surface of the stopper body is airtight with the inner peripheral wall surface of the mouth tube portion. It is characterized by being subjected to a polishing process to be fitted into.

  Still another device of the present invention (third device) is characterized in that in the plug for physicochemical glassware of the first and second devices, the plug body is formed in a tapered cone shape. .

  In addition, the stopper for the physics and chemistry glass apparatus of the present invention (first to third ideas) is a test tube, flask, sample bottle, separatory funnel, distiller (apparatus), fractionator (apparatus), reactor ( Apparatus) and other physics and chemistry glass instruments having a mouth tube.

According to this invention, there exist the following effects.
(1) The glass plug body is configured to fit airtightly with the mouth tube portion of the physics and chemistry glassware. Therefore, by plugging the plug body into the mouth tube portion, it is possible to securely plug while maintaining airtightness.
(2) The outer peripheral wall surface of the knob head is knurled. Therefore, since the knurling exhibits an anti-slip action, the plug main body can be easily rotated by grasping or gripping the picking head, so that the plugging operation can be performed easily and smoothly.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows schematically the structure of the stopper for physics and chemistry glass instruments of one Embodiment of this invention, Comprising: The figure (a) is a perspective view, The figure (b) is a longitudinal cross-sectional view, The figure (c) is the figure. It is explanatory drawing which shows roughly the structure of the state which sealed the mouth pipe part of the physicochemical glass instrument with the said stopper. It is the side view (a) and longitudinal cross-sectional view (b) which show schematically the structure of the stopper for physics and chemistry glass instruments of other embodiment of this invention. It is the side view (a) and longitudinal cross-sectional view (b) which show schematically the structure of the stopper for the physics and chemistry glass instruments of further another embodiment of this invention. It is a side view which shows roughly the structure of the stopper for the conventional physics and chemistry glass instruments.

  Hereinafter, an example of an embodiment of a stopper for a physicochemical glass instrument of the present invention will be described with reference to the drawings.

  FIG. 1 shows an embodiment (Embodiment 1) of the present invention. The stopper 1 for the physics and chemistry glass appliance of the first embodiment includes a glass stopper body 10 made of transparent glass or the like that fits and fits the mouth tube portion 20 of the physics and chemistry glass appliance 2, and a proximal end of the stopper body 10. And a picking head 12 integrally extending through the neck 11.

  The plug 1 is a plug body 10 that is removably inserted into the mouth tube portion 20 and sealed. The plug body 10 is formed in a tapered conical shape (taper) in which the tip side is gradually reduced in diameter. Further, the inner peripheral wall surface 20 a of the mouth tube portion 20 is also provided with a taper that matches the stopper body 10.

  In order to fit the outer peripheral wall surface 10a of the stopper main body 10 with the inner peripheral wall surface 20a of the mouth tube portion 20 while maintaining airtightness, it is subjected to grinding and other polishing processes and finished to a specified size. is there. Further, the inner peripheral wall surface 20a of the mouth tube portion 20 is also subjected to a polishing process in the same manner as described above so as to be finished to a specified dimension. Thereby, it is configured so as to be compatible with the mouth tube portion 20 and to be sealed while maintaining airtightness.

  The plug body 10 of the first embodiment is formed in a hollow 13 inside, and the tip of the hollow inside is opened 14.

  Moreover, in Embodiment 1, the example which employ | adopted the test tube made from transparent glass as the physics and chemistry glass instrument 2 is disclosed. In this case, it goes without saying that flasks, fractionators, reactors, and other various physicochemical glassware can be employed.

  The plug 1 and the plug main body 10 are configured to have predetermined sizes of various sizes, large and small, defined by JIS standards and the like. And it is used for the mouth tube part of the physics and chemistry glass instrument comprised by the regular dimension similarly to the above.

  The outer peripheral wall surface of the knob head 12 is knurled 15 over substantially the entire area. Thereby, the uneven | corrugated strip (jagged strip) by the knurl process 15 is formed in the substantially whole area of the outer peripheral wall surface of the head 12. As shown in FIG.

  The stopper for the physicochemical glass apparatus of Embodiment 1 is configured as described above, and by fitting the plug body 10 into the mouth tube portion 20, the mouth tube portion can be reliably sealed while maintaining airtightness. In addition, the outer peripheral wall surface of the picking head is knurled to provide an anti-slip action. Therefore, since the knob head 12 can be easily grasped or gripped by hand, the stopper main body can be easily rotated, so that the unplugging operation can be performed easily and smoothly.

  FIG. 2 shows another embodiment (Embodiment 2) of the present invention. In the stopper for the physics and chemistry glass apparatus of the second embodiment, the same reference numerals are given to the same components as those already described in the first embodiment, and the description thereof is omitted. This also applies to the embodiments described later.

  The stopper 1A for a physics and chemistry glass instrument of Embodiment 2 has the inside of the stopper body 10 formed into a hollow 13A. Further, as in the first embodiment, the plug body 10 is configured by being closed with a glass plate 16 without opening the tip of the hollow interior. Other configurations are the same as those of the first embodiment.

  The stopper for the physicochemical glass instrument of the second embodiment is configured as described above and is used in the same manner as in the first embodiment. Thereby, there exists an effect similar to Embodiment 1.

  FIG. 3 shows still another embodiment (Embodiment 3) of the present invention. The third embodiment is characterized by the configuration of the plug body 10.

  As shown in FIG. 3B, the plug 1B for the physicochemical glass instrument of the third embodiment is formed solid (solid) without forming the plug body 10 hollow as in the first and second embodiments. It is a thing. Other configurations are the same as those of the first embodiment.

  The stopper for the physicochemical glass apparatus of Embodiment 3 is configured as described above, and is used in the same manner as in Embodiment 1. Thereby, there exists an effect similar to Embodiment 1.

  In the embodiment described above, an example in which a test tube is employed as the physics and chemistry glass instrument 2 is disclosed. However, as described above, the stopper of the present invention is a flask, a sample bottle, a distiller or a fractionator (apparatus). ), Reactor (apparatus), and other various physics and chemistry glass instruments.

  Further, the stoppers for physics and chemistry glass appliances of the above-described embodiments are disclosed as examples, and the present invention is not limited to the above-described embodiments, and the technical idea described in the claims of the utility model registration is not exceeded. It can be arbitrarily changed within the range.

DESCRIPTION OF SYMBOLS 1 Plug for physics and chemistry glassware 2 Physics and chemistry glassware 10 Plug body 12 Head for picking 15 Knurling 20 Mouth tube

Claims (3)

A glass stopper body that is airtightly fitted to a mouth tube portion of a physicochemical glass instrument; and a knob head that is integrally extended to a proximal end portion of the stopper body, the stopper body being the mouth tube It is a stopper for physics and chemistry glass appliances that is removably inserted into the part and sealed.
A stopper for a physics and chemistry glass instrument, wherein a knurling process is applied to substantially the entire outer peripheral wall surface of the knob head.   The stopper for a physics and chemistry glass instrument according to claim 1, wherein the outer peripheral wall surface of the stopper main body is subjected to a polishing process for airtight fitting with the inner peripheral wall surface of the mouth tube portion.   The stopper for a physicochemical glass instrument according to claim 1 or 2, wherein the stopper body is formed in a tapered cone shape.

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