KR102484669B1 - Experimental container - Google Patents

Abstract

The present invention relates to a container for experimentation, comprising: a container body (110) in which experimental samples are accommodated; a lid (120) coupled to the upper part of the container body (110) to open and close the open upper part of the container body (110); and an angle-adjustable hinge (130) which couples the lid (110) to the container body (110) by opening the lid (110) at an angle of 90 degrees or more with respect to the container body (110) when pressure is applied in the direction in which the lid (120) is opened. The container body (110) includes a tube (111) in which the sample is accommodated, and a tube protrusion (113) extending a certain area radially outward at the top of the tube (111). The lid (120) includes a lid body (121) provided with an area covering the tube protrusion (113); an inside guard (125) which extends to a certain height below the lid body (121) and is inserted into contact with the inner wall of the tube (111) when the lid body (121) is closed on the container body (110); an outside guard (123) covering the upper part of the tube (111) to a certain length so as to be in contact with the outer wall surface of the tube protrusion (113) when the lid body (121) extends downward to a certain height on the outer periphery of the lid body (121) and is closed on the container body (110); and a front guard (127) extending from the front of the lid body (121) to a certain area below the outside guard (123) and contacting the user's finger to open the lid (120). Accordingly, in the present invention, the user can easily open and close the lid using only the thumb while holding the container body with one hand.

Description

Experimental container {Experimental container}

The present invention relates to an experimental vessel, and more particularly, to an experimental vessel for storing various samples or a culture medium for cell culture for testing or analysis.

In general, laboratory containers are used to contain, use, or store materials, organisms, or microorganisms in various fields for testing, analysis, or inspection.

The experimental vessel is made of glass or synthetic resin material depending on the purpose of use, and when the sample has chemical components, a vessel made of a material having chemical resistance is used.

Experimental vessels are generally manufactured to have a relatively small size and a long vertical length, and are manufactured with a structure that allows easy coupling and separation from the lid while the mouth of the vessel is wide.

However, conventional containers for experiments have limitations in that researchers cannot easily open and close the lids for airtightness.

In addition, when a sample of chemical composition is to be studied due to the characteristics of various samples, a sample container made of chemical-resistant synthetic resin is used for the experimental container. In the case of the container, the watertight structure between the container and the lid is not perfect, so There was a leaking problem.

In addition, when the researcher opens the lid by pressing with a finger, the lid must be opened at least 90 degrees to prevent contamination because the pipette tip does not touch the lid when the researcher collects a sample inside the container with a pipette. It was opened at an angle of less than 90 degrees, or closed again in an open state, causing inconvenience that the pipette tip touches the lid.

Patent Publication No. 10-2007-0119920 "Experimental vessel"

An object of the present invention is to solve the above problems, and to provide a container for experiments in which a lid can be easily opened and closed with a small force.

Another object of the present invention is to provide an experimental container capable of improving airtightness and preventing external contamination.

Another object of the present invention is to provide an experimental vessel whose angle can be adjusted so that the lid is opened at 90 degrees or more when the lid is opened.

The above objects and various advantages of the present invention will become more apparent from preferred embodiments of the present invention by those skilled in the art.

The object of the present invention can be achieved by a laboratory vessel. The experiment vessel of the present invention includes a vessel body 110 in which a sample for experiment is accommodated; a lid 120 coupled to an upper portion of the container body 110 to open and close the open upper portion of the container body 110; The angle at which the lid 120 is coupled to the container body 110 such that the lid 120 is opened at an angle of 90 degrees or more with respect to the container body 110 when a pressing force is applied in the direction in which the lid 120 opens. It includes an adjustment hinge 130, and the container body 110 includes a tube 111 in which the sample is accommodated, and a tube jaw 113 extending a certain area radially outward at the top of the tube 111, , The lid 120 includes a lid body 121 provided with an area covering the tube jaw 113; an inside guard 125 that extends below the lid body 121 at a certain height and is inserted into contact with the inner wall surface of the tube 111 when the lid body 121 is closed to the container body 110; The tube 111 extends downward to the outer circumference of the lid body 121 at a predetermined height so that the lid body 121 is in contact with the outer wall surface of the tube jaw 113 when the lid body 121 is closed to the container body 110. An outside guard 123 covering the top of the predetermined length; It is characterized in that it includes a front guard 127 that extends from the outside guard 123 to a certain area lower from the front of the lid body 121 and contacts the user's finger to open the lid 120. .

According to one embodiment, the top of the lid 120 where the front guard 127 is located protrudes toward the top so that when a finger contacts the front guard 127, the upper end of the finger is contacted and supported, and a pressing force is applied. An opening and closing plate 127a to be applied to the lid 120 is provided, and the front guard 127 and the opening and closing plate 127a may be provided with a curved surface corresponding to the shape of a finger.

According to one embodiment, the inner wall surface of the upper end of the tube 111 is vertically provided with a hook 111a protruding inward in a radial direction and a fitting groove 111b recessed outward in a radial direction, and the inside guard ( 125), the hook 111a is fitted to the outer wall surface of the cap 120 and the tube 111 is inserted into the locking groove 125a and the fitting groove 111b to restrain the coupled state An upper leakage preventing protrusion 125b may be provided to prevent leakage of the sample.

According to one embodiment, the angle adjustment hinge 130, the lid 120 and the connection hinge 131 connecting the top of the tube 111; A pivoting force applying hinge 133 that is bent in an “L” shape at the bottom of the connection hinge 131 and applies a pivoting force to the lid 120 so that the lid 120 is rotated at an angle of 90 degrees or more. ; It may include a pair of hinge guides 135 coupled to the outer side of the pivoting force applying hinge 133 at the top of the tube 111 and guiding the pivoting force applying hinge 133 to rotate in the correct position. .

According to the shape of the front guard and the opening/closing plate of the container for experiments according to the present invention, the user can easily open and close the lid using only his or her thumb while holding the container body with one hand.

In particular, the front guard and the opening and closing plate are formed in a curved surface corresponding to the shape of the thumb, so that they are in close contact with the thumb and can be opened and closed with a small force.

In addition, the experimental container according to the present invention is opened at an angle of 100 degrees or more when opened by a coupling structure of a connecting hinge and a pivoting force applying hinge, thereby preventing contamination.

In addition, a hinge guide is provided so that the connecting hinge and the pivotal force-applying hinge are rotated in the correct position, and the lid can be opened and closed in an accurate position.

In addition, it is possible to prevent the sample from being contaminated by preventing the upper part of the container body from being contaminated by the user's hand by the outside guard and the front guard.

1 is a perspective view showing the configuration of the experimental container in a closed state according to the present invention;
2 is a perspective view showing the configuration of the experimental container in an open state according to the present invention;
3 is a cross-sectional view showing a cross-sectional configuration taken along line AA of FIG. 1;
4 is a perspective view showing a state in which the lid of the experimental vessel according to the present invention is opened at an angle of 180 degrees;
5 is a side view illustrating an operation process of an angle adjusting hinge of an experimental vessel according to the present invention.

In order to fully understand the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the examples described in detail below. This embodiment is provided to more completely explain the present invention to those skilled in the art. Therefore, the shapes of elements in the drawings may be exaggerated to emphasize a clearer explanation. It should be noted that in each drawing, the same members are sometimes indicated by the same reference numerals. Detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention are omitted.

1 is a perspective view showing a state in which the lid 120 of the vessel 100 for experiments of the present invention is closed, and FIG. 2 (a) is a view showing a state in which the lid 120 of the vessel 100 for experiments is opened. .

As shown, the experimental vessel 100 of the present invention includes a container body 110 in which various types of samples A are accommodated, and a lid coupled to the upper portion of the container body 110 to open and close the container body 110 ( 120), and an angle adjusting hinge 130 that connects the container body 110 and the lid 120 and adjusts the opening angle so that the lid 120 is opened at an angle of 90 degrees or more when the lid 120 is opened.

The container body 110 has a tube 111 provided in a cylindrical shape with an open top having a predetermined length, and a tube jaw 113 extending outside a predetermined area on the top of the tube 111. The tube 111 and the tube chin 113 are preferably made of a transparent yet strong polycarbonate material or a polypropylene material, and may also be made of a polystyrene material.

A plurality of concave-convex structures are formed on the upper inner wall surface of the tube 111 to prevent external leakage of the internal sample A when the lid 120 is closed. 3, the hook 111a protrudes inward from the upper inner wall surface of the tube 111 and is engaged with the locking groove 125a when the cover 120 is closed, and the locking hook 111a. A fitting groove 111b recessed with respect to the inner wall surface is provided at the bottom of the hook 111a, and a lower protrusion 111c protrudes from the bottom of the fitting groove 111b.

The locking hook 111a is inserted into the locking groove 125a of the lid 120 when the lid 120 is closed together with the tube jaw 113, and allows the user to check whether the lid 120 is properly closed. When the locking hook 111a is inserted into the locking groove 125a, a hooking sound is heard, and when the locking hook 111a is separated from the locking groove 125a, a sound of separation occurs and the user checks whether the lid 120 is opened or closed. can be checked with

In addition, the fitting groove 111b and the lower projection 111c have a semicircular cross section and are coupled to the upper leakage prevention projection 125b and the lower groove 125c of the lid 120, respectively. In this way, the hook 111a, the fitting groove 111b, and the lower protrusion 111c come into surface contact and linear contact with the lid 120 in a curved shape in a triple structure, thereby forming a completely closed structure.

Accordingly, it is possible to prevent the sample inside the tube 111 from leaking to the outside during various experiments, and there is an advantage in that contamination of experimental tools and equipment due to sample leakage can be prevented.

On the other hand, a side corrosion treatment surface 115 is formed in a certain area in front of the container body 110. The surface of the side corrosion treatment surface 115 is subjected to corrosion treatment so that the user can easily write a memo on the surface with a pen, and the written memo is not easily erased.

Due to the characteristics of the experimental vessel 100, the type and collection date of the sample A accommodated therein are written with a pen. In this process, if the memo written with the pen is erased, a big problem may occur.

To prevent this, a side corrosion treatment surface 115 is formed in a large area in front of the container body 110 to easily write a memo T as shown in FIG. 1 and to prevent the written memo from being erased.

In addition, scales 117 are provided on both sides of the container body 110 to visually check the amount of the sample A accommodated therein. The scale 117 may be formed by printing or formed in a concave-convex shape.

The lid 120 opens and closes the open top of the container body 110 by the angle adjusting hinge 130. The lid 120 is a lid body 121 covering the top of the container body 110, as shown in FIGS. 1 and 2 (b), and to the inside of the tube 111 inside the lid body 121. An inside guard 125 formed at a certain height to be inserted, an outside guard 123 extending at a certain height from the outer circumference of the lid body 121 and covering the outside of the tube sill 113 of the lid body 121, and a lid body 121 includes a front guard 127 that extends from the outside guard 123 and contacts the user's finger for opening and closing.

In the lid 120 of the present invention, the front guard 127 is designed so that it can be opened and closed with minimal force and without slipping when the user opens and closes by pressing with a finger, and the outside guard 123 is designed to prevent contamination when opening and closing. ) and the front guard 127 were designed.

The lid body 121 is provided in a horizontal disk shape with an area covering the tube jaw 113 of the container body 110. On the upper surface of the lid body 121, as shown in FIG. 1, an upper corrosion treatment surface 122 is formed. Like the side corrosion treatment surface 115, the upper corrosion treatment surface 122 is provided so that the user can write a memo T on the sample A inside the experimental vessel 100.

The outside guard 123 is bent at a predetermined length perpendicular to the outer circumferential surface of the lid body 121 and covers the top of the container body 110 . As shown in FIG. 1, the outside guard 123 is in circumscribed contact with the tube jaw 113, and is provided with an area capable of partially covering the upper portion of the tube jaw 113 and the container body 110 together. The outside guard 123 is formed along the outer periphery of the entire area of the lid body 121 except for the rear area to which the angle adjusting hinge 130 is coupled.

As shown in FIG. 3, the outside guard 123 has a tube chin 113 positioned between the inside guard 125 and the outside guard 123, and the combined state of the container body 110 and the lid 120 Confidentiality is firmly maintained.

In addition, the outside guard 123 partially covers the upper part of the container body 110 so that the user's fingers do not directly touch the tube jaw 113 of the container body 110 when the user grips the experimental container 100 with his hand. Contamination of the container body 110 and the sample A accommodated therein is prevented.

In addition, the outside guard 123 is formed to cover the entire outer periphery of the lid body 121 and maintains its shape so that deformation of the lid body 121 does not occur during opening and closing operations.

The inside guard 125 is concentrically formed inside the outside guard 123 on the lid body 121 at a certain height. As shown in FIG. 3 , the inside guard 125 is formed to contact and fit into the inner wall surface of the tube 111 . That is, the outer diameter of the inside guard 125 is formed to correspond to the inner diameter of the tube 111, so that when the lid 120 is closed, it is inserted into the tube 111.

As described above, on the outer wall surface of the inside guard 125, the hooking groove 125a into which the hooking hook 111a is inserted, the upper leakage prevention projection 125b and the lower projection 111c inserted into the fitting groove 111b are formed. The lower groove 125c to be inserted is formed unevenly.

External leakage of the inner sample A can be stably blocked by various watertight structures of the inside guard 125 .

The front guard 127 covers the top of the container body 110 so that the user's finger does not come into direct contact with the container body 110 when the user touches the container body 110 to open the lid 120 . The front guard 127 is formed extending a certain area downward from the outside guard 123 located on the front side.

As shown in FIG. 3, an opening and closing plate 127a protruding upward from the surface of the lid body 121 is provided on the top of the front guard 127. The opening and closing plate 127a contacts the upper end of the user's finger F when force is applied upward in a state in which the user's finger F contacts the front guard 127, and the pressing force is transmitted to the lid 120.

Accordingly, it is possible to open the lid 120 by applying force only with the thumb F while holding the container body 110 with one hand.

At this time, a contact groove 127b is formed on the surface of the front guard 127 to be recessed into a curved surface corresponding to the curvature of the surface of the finger F in order to maximize the contact area when in contact with the finger. In addition, a plurality of non-slip protrusions 127c are provided to prevent the finger F from slipping when pressure is applied in the open direction in a contact state with the finger F.

The opening and closing plate 127a also protrudes in a curved shape corresponding to the finger to come into close contact with the finger F, and allows the pressing force of the finger F to be uniformly transmitted to the front guard 127 and the opening and closing plate 127a. The curved surface shape increases the adhesion and contact area with the fingers, thereby reducing resistance during opening and closing, allowing the lid 120 to be opened and closed with less force.

When the user opens the lid 120 by pressing the front guard 127 and the opening/closing plate 127a with a finger F, the angle adjusting hinge 130 rotates the lid 120 90 degrees as shown in FIG. open to more than one angle.

As a result, when the lid 120 is opened at least 90 degrees by one pressurization and the user collects a sample inside the container with a pipette, the pipette tip does not touch the lid and contamination can be prevented.

4 (a) and (b) are views showing a state in which the lid 120 is opened at an angle of 180 degrees with respect to the container body 110 from different angles, and FIG. It is a side view showing the open state of the lid 120.

The angle adjusting hinge 130 connects the lid 120 and the container body 110 to a connecting hinge 131 that prevents the lid 120 from being separated from the container body 110, and a lower portion of the connecting hinge 131. When the lid 120 is opened by the connecting hinge 131, the rotational force applying hinge 133 for applying a rotational force to the lid body 121 so that the lid 120 rotates more than 90 degrees, and the rotational force is applied. It is provided on both sides of the hinge 133 and includes a hinge guide 135 that guides the lid 120 to be opened and closed in an accurate position without being pierced when opening and closing.

The connection hinge 131 supports the lid 120 so that it can rotate in a coupled state with respect to the container body 110 . The connection hinge 131 is a connection hinge 131a extending from the tube jaw 113, as shown in (a) of FIG. 4, and a lid connection hinge extending from the lid hinge coupling groove 129 of the lid 120. (131b) is coupled to be folded based on the fold line (131c).

The connection hinge 131a and the lid connection hinge 131b are folded or gradually unfolded with respect to the fold line 131c, and the lid 120 can be rotated between the closed state and 180 degrees as shown in FIG. to support

As shown in (a) and (b) of FIG. 4, the pivoting force applying hinge 133 includes a container fixing member 133a fixedly coupled to the upper portion of the container body 110, and a lower container fixing member 133a. It is provided to be collapsible and the top includes a lid fixing member 133b coupled to be folded by an upper fold line 133b-3 in the lid hinge coupling groove 129 to cover the lid connecting hinge 131b.

The container holding member (133a) is fixed to the lower part of the tube jaw (113). The container fixing member 133a and the lid fixing member 133b are pivotally coupled by a lower folding line 133b-1. The lower fold line (133b-1) is formed to be relatively thin compared to other areas to support the lid fixing member (133b) so that it can be rotated.

The lid fixing member 133b is bent in an “L” shape around the middle bent end 133b-2 to support the lid 120 so as to be rotated at an angle of 100 degrees or more. The lid fixing member (133b) is a horizontal area from the lower fold line (133b-1) to the middle bend end (133b-2) based on the middle bend end (133b-2), and in the middle bend end (133b-2). The vertical area up to the upper fold line 133b-3 coupled with the lid 120 is formed by combining.

At this time, as shown in FIG. 5, when the length ℓ2 of the vertical region is longer than the length ℓ1 of the horizontal region, and the user presses the opening and closing plate 127a with a finger to apply force, the center of gravity moves backward. It is supported so that the lid 120 is rotated at an angle of 100 degrees or more.

Here, the angle adjusting hinge 130 may be formed of a polycarbonate material or a polypropylene material together with the container body 110 and the tube 111. At this time, the lid 120 is rotated by the thickness of the lid fixing member 133b forming the rotational force applying hinge 133 and the thickness of the lower fold line 133b-1 and the upper fold line 133b-3 Angle can be adjusted.

The lid fixing member 133b is the thinner the container fixing member 133a and the lower folding line 133b-1 and the upper folding line 133b-3 that are folded and coupled to the lid hinge coupling groove 129 The folding angle increases to open close to 180 degrees, and the thicker the thickness, the smaller the folding angle makes it possible to rotate close to 100 degrees.

Here, as shown in (b) of FIG. 4, hinge guides 135 are provided on both sides of the container holding member 133a. The hinge guide 135 guides the rotation of the container holding member 133a so that the container holding member 133a can be rotated in a fixed position without being twisted at an angle when the container holding member 133a is rotated. As a result, when the lid 120 is opened and closed, an accurate position can be secured.

A process of using the experimental vessel 100 according to the present invention having such a configuration will be described with reference to FIGS. 1 to 5 .

As shown in FIG. 1 , the experiment container 100 is prepared in a state in which the lid 120 is closed to the container body 110 . In a laboratory or laboratory, a user puts his/her thumb (F) in close contact with the front guard 127 of the lid 120 in a closed state and places a fingernail portion in contact with the opening/closing plate 127a. Then, force is applied in an upward direction toward the opening and closing plate 127a.

The opening and closing plate 127a and the anti-slip protrusion 127c prevent the finger from slipping, and the depressed curved surface makes close contact with the shape of the finger, so that the force of the finger is dispersed and applied, so that the lid 120 is easily applied with a small force. ) can be opened.

As shown in (a) of FIG. 2 , the lid 120 is rotated backward by the connecting hinge 131 and the pivoting force applying hinge 133 and is opened. At this time, the connecting hinge 131 is rotated backward together by the supporting force of the pivoting force applying hinge 133, and the lid 120 is opened more than 100 degrees.

When the lid 120 is opened in this way, the user inserts the sample A into the inside using a pipette or the like. When the sample (A) is contained, the user presses the lid body 121 so that the lid 120 is closed to the container body 110.

When the lid 120 is closed, the inside guard 125 is inserted in contact with the inner wall surface of the tube 111, and the outside guard 123 is coupled while covering a certain area of the tube chin 113. And, as shown in FIG. 3, the hook 111a is inserted into the locking groove 125a and closed with a "click" sound.

When the lid 120 is closed in this way, the top of the container body 110 is blocked from direct contact with the user's hand by the outside guard 123 and the front guard 127, thereby preventing contamination.

In addition, the inside guard 125 and the container body 110 are interlocked with each other in multiple stages by the triple leakage prevention structure including the hook 111a, and leakage of samples and inflow of contaminants into the inside can be blocked.

As described above, the experimental container according to the present invention can be easily opened and closed by using only the thumb while holding the container body with one hand due to the shape of the front guard and the opening and closing plate.

In particular, the front guard and the opening and closing plate are formed in a curved surface corresponding to the shape of the thumb, so that they are in close contact with the thumb and can be opened and closed with a small force.

In addition, the experimental container according to the present invention is opened at an angle of 100 degrees or more when opened by a coupling structure of a connecting hinge and a pivoting force applying hinge, thereby preventing contamination.

In addition, a hinge guide is provided so that the connecting hinge and the pivotal force-applying hinge are rotated in the correct position, and the lid can be opened and closed in an accurate position.

In addition, it is possible to prevent the sample from being contaminated by preventing the upper part of the container body from being contaminated by the user's hand by the outside guard and the front guard.

The embodiment of the experimental vessel of the present invention described above is only exemplary, and those skilled in the art to which the present invention belongs can understand that various modifications and equivalent other embodiments are possible therefrom. There will be. Therefore, it will be well understood that the present invention is not limited to the forms mentioned in the detailed description above. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims. It is also to be understood that the present invention includes all modifications, equivalents and alternatives within the spirit and scope of the present invention as defined by the appended claims.

100: container for experiment 110: container body
111: tube 111a: hook
111b: fitting groove 111c: lower projection
113: tube jaw 113a: hinge coupling groove
115: side corrosion treatment surface 117: scale
120: lid 121: lid body
122: top corrosion treatment surface 123: outside guard
125: inside guard 125a: locking groove
125b: upper leakage prevention projection 125c: lower groove
127: front guard 127a: opening and closing plate
127b: contact groove 127c: non-slip protrusion
129: lid hinge coupling groove 130: angle adjustment hinge
131: connection hinge 131a: chin connection hinge
131b: lid connection hinge 131c: folding line
133: pivoting force applied hinge 133a: container fixing member
133b: lid fixing member 133b-1: lower fold line
133b-2: middle bend 133b-3: upper fold line
135: hinge guide
A: sample
T: Memo

Claims (4)

a container body 110 in which samples for experiments are accommodated;
a lid 120 coupled to an upper portion of the container body 110 to open and close the open upper portion of the container body 110;
The angle at which the lid 120 is coupled to the container body 110 such that the lid 120 is opened at an angle of 90 degrees or more with respect to the container body 110 when a pressing force is applied in the direction in which the lid 120 opens. It includes an adjustable hinge 130,
The container body 110,
It includes a tube 111 in which the sample is accommodated, and a tube jaw 113 extending a certain area radially outward at the top of the tube 111,
The lid 120,
a cover body 121 provided with an area covering the tube chin 113;
an inside guard 125 that extends below the lid body 121 at a certain height and is inserted into contact with the inner wall surface of the tube 111 when the lid body 121 is closed to the container body 110;
The tube 111 extends downward to the outer circumference of the lid body 121 at a predetermined height so that the lid body 121 is in contact with the outer wall surface of the tube jaw 113 when the lid body 121 is closed to the container body 110. An outside guard 123 covering the top of the predetermined length;
Including a front guard 127 extending downward from the outside guard 123 at the front of the lid body 121 so that the user's finger contacts to open the lid 120,
The angle adjusting hinge 130,
a connection hinge 131 connecting the top of the lid 120 and the tube 111;
A pivoting force applying hinge 133 that is bent in an “L” shape at the bottom of the connection hinge 131 and applies a pivoting force to the lid 120 so that the lid 120 is rotated at an angle of 90 degrees or more. ;
A pair of hinge guides 135 coupled to the outer side of the rotational force applying hinge 133 at the top of the tube 111 and guiding the rotational force applying hinge 133 to rotate in the correct position Characterized in that it includes vessel for experimentation.
According to claim 1,
The top of the lid 120 where the front guard 127 is located protrudes upward, so that when a finger touches the front guard 127, the upper end of the finger is contacted and supported, and a pressing force is applied to the lid 120. An opening and closing plate 127a is provided,
The front guard 127 and the opening and closing plate 127a are provided with a curved surface corresponding to the shape of a finger.
According to claim 2,
On the inner wall surface of the upper end of the tube 111, a holding hook 111a protruding inward in the radial direction and a fitting groove 111b recessed outward in the radial direction are vertically provided,
On the outer wall surface of the inside guard 125, the catching hook 111a is fitted to restrict the coupled state between the lid 120 and the tube 111, and the catching groove 125a, and the fitting groove 111b. ) An experimental vessel characterized in that it is provided with an upper leakage prevention protrusion (125b) inserted into the sample to prevent leakage of the sample.
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