JP6378007B2 - Reaction vessel clamp - Google Patents

Description

  The present invention relates to a reaction vessel clamp, and more particularly to a reaction vessel clamp that holds a lid equipped with a stirrer, a thermometer, and the like in an upper opening of the reaction vessel.

  When holding a glass reaction vessel having a connecting flange on the outer periphery of the upper opening and a glass lid having a connecting flange on the outer periphery of the lower opening, conventionally, it is used when connecting sanitary piping. In many cases, a structure based on a sanitary joint clamp (see, for example, Patent Document 1) is employed.

JP 2010-255701 A

  However, in the case of a glass reaction vessel used for a chemical experiment, for example, in the case of a round bottom reaction vessel, it is necessary to prepare a support stand for supporting the reaction vessel and proceed with the work of attaching the lid. Depending on the type of clamp, a tool may be required, which makes the work complicated. Furthermore, the operation of removing the lid is troublesome, and the reaction container may fall when the clamp is loosened. Further, when the clamp is loosened after the reaction at a high temperature, there is a risk of burns if the reaction container is touched. Furthermore, since a stirring shaft of a stirrer, a thermometer, a pH sensor, and the like are attached to the lid of the reaction vessel through the lid, it is necessary to pay attention to the handling of the lid.

  Accordingly, an object of the present invention is to provide a reaction vessel clamp that can securely hold and hold the reaction vessel and the lid by a simple operation and can be easily detached.

  In order to achieve the above object, the reaction vessel clamp of the present invention comprises a vessel-side connection flange provided on the outer periphery of the upper opening of the reaction vessel, and an outer periphery of the lower opening of the lid attached to the upper opening of the reaction vessel. In the reaction vessel clamp that holds the lid-side coupling flange provided on the upper and lower sides, the reaction vessel clamp includes a lower clamp that holds the reaction vessel, and presses the lid against the reaction vessel. The lower clamp is a ring-shaped lower clamp body having an inner diameter larger than the outer diameter of the container body of the reaction vessel, and a ring protruding upward from the inner periphery of the upper surface of the lower clamp body Of the inner peripheral side, a flange mounting step provided on the inner peripheral side of the inner peripheral side protruding portion, on which the container side connecting flange can be mounted, and an outer periphery of the inner peripheral side protruding portion Provided on the surface The upper clamp is composed of a first half and a second half that are divided into two in a semicircular shape, and protrudes outward from the respective base end portions of both halves. When the hinges are hinged together and the front ends of both halves are formed to be openable and closable, and the detachable connecting parts projecting outward from the front ends of both halves are connected to each other, the lower clamp The ring-shaped upper clamp has an upper clamp body having an outer diameter and an inner diameter corresponding to the lower clamp body, and a ring shape protruding downward from the outer peripheral portion of the lower surface of the upper clamp body. On the outer peripheral side of the upper clamp body, on the inner peripheral side of the upper clamp body, and on the inner peripheral surface of the outer peripheral side protruding portion, the flange pressing step portion that can press the lid side connecting flange downward. Provided with a female thread part provided. It is characterized in.

  Furthermore, the reaction vessel clamp according to the present invention is such that the male screw portion and the female screw portion are multi-threaded screws, and a support rod for supporting the lower clamp on the outer periphery of the lower clamp body, particularly in a crank shape. Protruding a boss part having a female screw hole for screwing a fastening male screw part formed at the tip of the bent support bar, and preventing slipping on the outer peripheral surface of the lower clamp body and the outer peripheral surface of the upper clamp body It is characterized in that an uneven portion for forming is formed.

  Further, the hinge portions provided at the base end portion of the first half body and the base end portion of the second half body are provided so as to protrude from the outer periphery of each half body, and the two half bodies are opened. A stopper portion for restricting the angle to a preset angle is provided, and the connecting portion provided at the front end portion of the first half body and the front end portion of the second half body is divided into half portions. It protrudes on the outer periphery of the body, and in the female insertion part provided in one of the first half and the second half, either the first half or the second half A plug buckle type fastener for inserting and coupling the provided male insertion portion; and positioning of the halves on the contact surfaces of both ends of the first and second halves. It is characterized in that an uneven engaging portion is provided.

  Further, the container-side coupling flange and the lid-side coupling flange have a flat end surface, a conical surface on the opposite end surface, and a thicker inner peripheral side of the flange than the outer peripheral side of the flange. The flange mounting surface of the flange mounting stepped portion is formed as a conical surface having a downward slope from the outer peripheral side toward the inner peripheral side, and the flange pressing surface of the flange pressing stepped portion is from the outer peripheral side to the inner peripheral side. It is characterized in that it is formed with a conical surface having an upward slope toward the surface, and in particular, each of the conical surfaces is formed at the same angle. Also, an annular standing piece is provided on the flange mounting step so that the outer periphery of the container-side connecting flange abuts, and an annular hanging piece is provided on the flange pressing step that the outer periphery of the lid-side connecting flange is in contact. In addition, the axial center of the annular standing piece and the axial center of the annular hanging piece are matched.

  According to the reaction vessel clamp of the present invention, the vessel side connection flange of the reaction vessel is placed on the flange placement step of the lower clamp, and the lid side connection flange of the lid is attached to the vessel side connection flange. In the abutted state, the lid-side connecting flange is connected to the flange pressing step by tightening the female screw of the upper clamp that is connected to the connecting part into a ring shape and screwed into the male screw part of the lower clamp. The lid can be attached to the reaction vessel while pressing downward and sandwiching both flanges. Moreover, when removing, the connection state of the connection part of the upper clamp may be released and the upper clamp may be opened, and the reaction vessel is placed on the lower flange. Does not fall, the lid can be removed without touching the reaction vessel, and there is no risk of burns.

  Furthermore, the opposite end face side of the container side connecting flange and the lid side connecting flange is a conical surface, and the flange mounting stepped portion and the flange pressing stepped portion are also conical surfaces corresponding to the conical surface. The connecting flange can be clamped more securely with a clamp, and in particular, by providing an annular standing piece and an annular hanging piece with the same axial center at each step, the axial center between the reaction vessel and the lid Can be adjusted easily and reliably.

It is a cross-sectional front view of the use state which shows one example of the clamp for reaction containers of this invention. It is a disassembled perspective view of the clamp for reaction containers. It is a perspective view which shows the state which opened the 1st half body and 2nd half body of the upper clamp. It is a top view of an upper clamp. It is VV sectional drawing of FIG.

  The reaction vessel clamp 11 shown in the present embodiment sandwiches a bottle-shaped reaction vessel 12 having an upper opening and a hemispherical lid 13 attached to the upper opening of the reaction vessel 12 from above and below. For holding through the ring 14, a lower clamp 21 for supporting the container-side coupling flange 15 provided on the outer periphery of the upper opening of the reaction vessel 12 and an outer periphery of the lower opening of the lid 13 are provided. And an upper clamp 31 for pressing the lid-side connecting flange 16 toward the container-side connecting flange 15. The reaction vessel 12 and the lid 13 are made of glass, and the lower clamp 21 and the upper clamp 31 are made of synthetic resin.

  The lower clamp 21 includes a ring-shaped lower clamp body 22 having an inner diameter larger than the outer diameter of the container body 12 a of the reaction container 12, and a ring-shaped inner portion protruding upward from the inner periphery of the upper surface of the lower clamp body 22. A circumferential protrusion 23, a flange mounting step 24 provided on the inner peripheral side of the inner peripheral protrusion 23, on which the container-side coupling flange 15 can be mounted, and the inner peripheral protrusion 23. And a boss portion 27 having a female screw hole 26 projecting from the outer periphery of the lower clamp main body 22. A fixing male screw portion 17a formed at the tip of the support rod 17 bent in a crank shape is screwed into the female screw hole 26 of the boss portion 27, and is locked by a lock nut 17b screwed to the fixing male screw portion 17a. The support rod 17 is fixed in a state in which the directions are aligned.

  The upper clamp 31 includes a first half 32a and a second half 32b that are divided into two semicircles, and hinges projecting outward from the respective base ends of the two halves 32a and 32b. The portions 33a and 33b are hinged by a hinge pin 33c, and the distal ends of both halves 32a and 32b are formed to be openable and closable. Connecting portions 34a and 34b project from the distal ends of the halves 32a and 32b, respectively. When the connecting portions 34a and 34b are connected to each other, the first half 32a and the second half are connected. The split body 32b is ring-shaped and has a shape corresponding to the lower clamp 21.

  The upper clamp 31 in the form of a ring has an upper clamp body 35 having an outer diameter and an inner diameter corresponding to the lower clamp body 22, and a ring-shaped outer peripheral protrusion projecting downward from the outer periphery of the lower surface of the upper clamp body 35. A portion 36, a flange pressing step 37 provided on the inner peripheral side of the upper clamp body 35 and capable of pressing the lid-side connecting flange 15 downward, and an inner peripheral surface of the outer peripheral protruding portion 36 And a female screw portion 38 provided on the

  The male screw portion 25 and the female screw portion 38 are multi-threaded screws, in this embodiment, two-threaded screws, and the number of rotations of the upper clamp 31 when the upper clamp 31 is attached to the lower clamp 21 is reduced. The workability is improved. Further, anti-slip uneven portions 28 and 39 are formed on the outer peripheral surface of the lower clamp main body 22 and the outer peripheral surface of the upper clamp main body 35, respectively, and workability is improved as a clue when the upper clamp 31 is rotated. I am trying.

  When the first half 32a and the second half 32b are opened, the hinges 33a and 33b are formed on the side surfaces of the hinge 33b protruding from the second half 32b. Stopper portions 33d and 33e are provided for restricting the opening angle between the first half 32a and the second half 32b to a preset angle, for example, 90 degrees by contacting the outer peripheral surface. This improves workability at the time and prevents the open halved body from rotating significantly and colliding with surrounding equipment.

  The connecting portions 34a and 34b include a male insertion member 41 assembled to the connecting portion 34a of the first half 32a and a female insertion portion 42 formed integrally with the connecting portion 34b of the second half 32b. Is provided. The male insertion member 41 and the female insertion portion 42 have the same structure as a well-known insertion buckle type fastener, and the male insertion member 41 is linearly inserted into the female insertion portion 42 so as to be male insertion members. The engagement protrusions 41b and 41b provided at the tips of the pair of elastic engagement arms 41a and 41a of 41 are engaged with the pair of engagement receiving parts 42a and 42a provided in the female insertion part 42, respectively. As a result, the halves 32a and 32b are ring-shaped and the upper clamp 31 is formed.

  In addition, by engaging the engagement protrusions 41b and 41b protruding from the engagement receiving portions 42a and 42a from the outside in the connected state, the engagement state with the engagement receiving portions 42a and 42a is changed. It can cancel | release and the connection state of connection part 34a, 34b can be cancelled | released, and both halves 32a and 32b can be made into the open state. Furthermore, in this embodiment, the release auxiliary piece 41c is provided between the elastic engagement arms 41a and 41a, and the elastic piece 41d provided at the distal end of the release auxiliary piece 41c is connected to the receiving surface of the female insertion portion 42 when connected. The elastic piece 41d is elastically deformed by being pressed against 42b, thereby generating an elastic force in the connection release direction. Thereby, the operation | movement at the time of pushing the engagement protrusion 41b and 41b and releasing connection can be made smooth.

  In addition, the ring-shaped upper clamp 31 is screwed to the lower clamp 21 by forming the hinge portions 33a, 33b and the connecting portions 34a, 34b so as to protrude outward from the halves 32a, 32b. This can be used as a clue at the time of final tightening, the upper clamp 31 can be firmly screwed to the lower clamp 21, and the reaction vessel 12 and the lid 13 can be securely clamped and held.

  The container-side coupling flange 15 and the lid-side coupling flange 16 in the reaction vessel 12 and the lid body 13 are formed such that the end surfaces to be abutted with each other are flat surfaces and the opposite end surface side is a conical surface, and the flange outer peripheral side The flange inner peripheral side has a shape called a ferrule flange with a thicker inner peripheral side, and the flange mounting surface 24a of the flange mounting step 24 extends from the outer peripheral side toward the inner peripheral side. The flange pressing surface 37a of the flange pressing step portion 37 is formed of a conical surface having an upward gradient from the outer peripheral side toward the inner peripheral side. Each conical surface is formed at the same angle, and when the reaction vessel clamp 11 holds the reaction vessel 12 and the lid 13 in a predetermined state, the opposite end surface side of the vessel-side connecting flange 15 and the flange placement. The flange mounting surface 24a of the stepped portion 24 is in surface contact with the opposite end surface of the lid side coupling flange 16 and the flange pressing surface 37a of the flange pressing step portion 37 is in surface contact. ing.

  Further, an annular standing piece 24b is provided on the outer periphery of the flange mounting surface 24a, and the outer periphery of the lid-side connecting flange 16 is provided on the outer periphery of the flange pressing surface 37a. An annular hanging piece 37b that comes into contact is provided. The axis of the annular standing piece 24b and the axis of the annular hanging piece 37b are formed to coincide with each other, and when the reaction vessel 12 and the lid 13 are sandwiched and held by the reaction vessel clamp 11, The axial center of the reaction vessel 12 and the axial center of the lid 13 can be matched by the annular standing piece 24b and the annular hanging piece 37b.

  In this way, by aligning the axis of the reaction vessel 12 with the axis of the lid 13, the stirring shaft 51 disposed along the axis of the lid 13 is made to coincide with the axis of the reaction vessel 12. Can be arranged. As a result, the stirring conditions during the reaction in the repeated experiment can be kept the same, and data reliability can be improved and reproducibility can be ensured.

  Further, when the first half 32a and the second half 32b are closed in a ring shape on the contact surfaces when the both ends of the first half 32a and the second half 32b are connected, Concavity and convexity engaging portions 43a and 43b for positioning the distal end portions of both halves 32a and 32b are provided. When the upper clamp 31 is screwed to the lower clamp 21, both halves 32a and 32b Even if a twisting force is applied, the flange-side connecting flange 15 is pushed by the flange pressing step 37 so that the tips of the halves 32a and 32b are not displaced by the engagement of the concave and convex engaging portions 43a and 43b. The pressure does not vary.

  By using such a reaction vessel clamp 11, the reaction vessel 12 can be supported by the lower clamp 21. Therefore, by fixing the support rod 17 to a stand or the like, There is no need to prepare a support stand separately, and the operation of arranging the lid 13 equipped with the stirring shaft 51, the thermometer 52, the cooling pipe 53 and the like on the upper part of the reaction vessel 12 can be easily performed. The upper clamp 31 can be disposed around the lid 13 with both halves 32a and 32b open, and the upper clamp 31 formed in a ring shape by closing both halves 32a and 32b is used as the lower clamp 21. By screwing, the reaction vessel 12 and the lid 13 can be clamped and held by a simple operation without using a tool.

  Furthermore, even if the crank-shaped support rod 17 is used, there is no influence on the operation of holding the reaction vessel 12 and the lid 13 with the reaction vessel clamp 11, and such a crank-shaped support rod 17 is used. By doing so, the reaction vessel 12 can be positioned below the bath 54, so that the amount of the heat medium 54a in the bus 54 can be reduced and temperature control can be easily performed. When removing, it is only necessary to push the engaging protrusions 41b and 41b to release the connection and open the upper clamp 31. In addition, the starting points of the male screw portion 25 and the female screw portion 38 are set corresponding to the hinge portions 33a and 33b and the connecting portions 34a and 34b, and the connecting portion 34a, By setting so that 34b is positioned in front, the engagement protrusions 41b and 41b can be pushed easily and safely when removed. Furthermore, since the reaction vessel clamp 11 is made of a synthetic resin, even if the reaction vessel clamp 11 is touched at the time of removal, there is no burn.

  In addition, by using a multi-thread screw, the lower clamp and the upper clamp can be easily screwed with a rotation of about 180 degrees, but a normal screw can also be used. Moreover, the attachment structure of the support rod to the lower clamp main body is arbitrary, and a linear support rod can be attached. Furthermore, the shape of the anti-slip uneven portion is arbitrary, and the anti-slip uneven portion can be omitted if a hinge portion or a connecting portion can be used. Also, the hinge part can adopt a known structure, the structure of the stopper part is also arbitrary, and the stopper part can be omitted.

  Furthermore, the structure of the connecting portion is also arbitrary, and various fastener structures can be used. Further, the shape of the positioning irregularities is arbitrary, and may be omitted depending on conditions such as the size of the clamp. Furthermore, the shape of the connecting flange is also arbitrary, and the mounting portion and the pressing portion can be formed in an appropriate shape and can be flat.

DESCRIPTION OF SYMBOLS 11 ... Reaction container clamp, 12 ... Reaction container, 12a ... Container main body, 13 ... Cover body, 14 ... O-ring, 15 ... Container side connection flange, 16 ... Cover body side connection flange, 17 ... Support rod, 17a ... Fastening male screw part, 17b ... Lock nut, 21 ... Lower clamp, 22 ... Lower clamp body, 23 ... Inner peripheral side protruding part, 24 ... Flange mounting step, 24a ... Flange mounting surface, 24b ... Ring standing Installation piece, 25 ... male screw part, 26 ... female screw hole, 27 ... boss part, 28 ... uneven part for slip prevention, 31 ... upper clamp, 32a, 32b ... halved body, 33a, 33b ... hinge part, 33c ... hinge pin 33d, 33e ... stopper part, 34a, 34b ... coupling part, 35 ... upper clamp body, 36 ... outer peripheral side protruding part, 37 ... flange pressing step part, 37a ... flange pressing surface, 37b ... annular hanging piece, 3 ... female screw part, 39 ... uneven part for slip prevention, 41 ... male insertion member, 41a ... elastic engagement arm, 41b ... engagement protrusion, 41c ... auxiliary piece for release, 41d ... elastic piece, 42 ... female insertion part, 42a ... engagement receiving part, 42b ... receiving surface, 43a, 43b ... concave / convex engaging part, 51 ... stirring shaft, 52 ... thermometer, 53 ... cooling pipe, 54 ... bath, 54a ... heating medium

Claims (11)

A container-side coupling flange provided on the outer periphery of the upper opening of the reaction vessel and a lid-side connection flange provided on the outer periphery of the lower opening of the lid attached to the upper opening of the reaction vessel are sandwiched from above and below. In the reaction vessel clamp to hold
The reaction vessel clamp has a lower clamp that holds the reaction vessel and an upper clamp that presses the lid against the reaction vessel,
The lower clamp includes a ring-shaped lower clamp body having an inner diameter larger than the outer diameter of the container body of the reaction vessel, and a ring-shaped inner peripheral protrusion protruding upward from the upper surface inner peripheral portion of the lower clamp body; A flange mounting step portion provided on the inner peripheral side of the inner peripheral side protruding portion and capable of mounting the container side connecting flange, and a male screw portion provided on the outer peripheral surface of the inner peripheral side protruding portion. And
The upper clamp is composed of a first half and a second half that are divided into two in a semicircular shape, and hinges that project from the base end portions of both halves are hinged to each other. The halves have a distal end side that can be opened and closed, and when the detachable connecting portions projecting outward from the respective distal end portions of both halves are connected to each other, a ring shape corresponding to the lower clamp is formed. The upper clamp in the form of a ring has an upper clamp body having an outer diameter and an inner diameter corresponding to the lower clamp body, and a ring-shaped outer peripheral protrusion projecting downward from the outer periphery of the lower surface of the upper clamp body, A flange pressing step provided on the inner peripheral side of the upper clamp body and capable of pressing the lid side connecting flange downward, and a female screw provided on the inner peripheral surface of the outer peripheral protruding portion; Reaction volume characterized by comprising Use clamp.   The reaction vessel clamp according to claim 1, wherein the male screw portion and the female screw portion are multi-threaded screws.   2. A boss portion having a female screw hole for screwing a male screw portion to be fastened formed on a tip end portion of a support rod for supporting the lower clamp is provided on the outer periphery of the lower clamp body. Or the clamp for reaction containers of 2.   The reaction vessel clamp according to claim 3, wherein the support bar is bent in a crank shape.   The reaction container clamp according to any one of claims 1 to 4, wherein a non-slip uneven portion is formed on an outer peripheral surface of the lower clamp body and an outer peripheral surface of the upper clamp body.   The hinge portions provided at the base end portion of the first half body and the base end portion of the second half body are provided so as to protrude from the outer periphery of each half body, and the opening angle of both halves is set. The reaction vessel clamp according to any one of claims 1 to 5, further comprising a stopper portion for restricting the angle to a preset angle.   The connecting portions provided at the front end of the first half and the front end of the second half are provided so as to protrude from the outer periphery of each half, and the first half and the second half. An insertion buckle type fastener is provided to insert and connect the male insertion portion provided in either one of the first half and the second half division to the female insertion portion provided in either one of the divisions. The reaction vessel clamp according to any one of claims 1 to 6, wherein   8. An uneven engagement portion for positioning both halves is provided on contact surfaces of both ends of the first and second halves. The reaction vessel clamp according to claim 1.   The container-side coupling flange and the lid-side coupling flange have a flat end surface and a conical surface on the opposite end surface, and the flange inner circumferential side is formed thicker than the flange outer circumferential side. The flange mounting surface of the mounting step is formed as a conical surface that is inclined downward from the outer peripheral side toward the inner peripheral side, and the flange pressing surface of the flange pressing step is from the outer peripheral side to the inner peripheral side. The reaction vessel clamp according to any one of claims 1 to 8, wherein the reaction vessel clamp is formed with a conical surface that is inclined upward.   The said container conical surface is formed at the same angle, The clamp for reaction containers of Claim 9 characterized by the above-mentioned.   An annular standing piece that contacts the outer periphery of the container side connecting flange is provided on the flange mounting step, and an annular hanging piece that the outer periphery of the lid side connecting flange contacts is provided on the flange pressing step. 11. The reaction vessel clamp according to claim 1, wherein an axis of the annular standing piece and an axis of the annular hanging piece are aligned with each other.

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