JP6550423B2 - Air hole plug of water collector and water collector - Google Patents

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to an air hole plug and a water collector of a water collector which collects water by immersing in water such as sea.

  In ocean observation and the like, a water collector may be mounted on an ocean observation apparatus called Conductivity Temperature & Depth Profiling System (CTD).

  The CTD is to perform seawater observation up to the bottom of the sea while measuring the distance from the sea surface to the bottom of the sea when it is submerged in the water. As such a water collector, there exists a thing of patent document 1, for example.

  In the water collector of Patent Document 1, the upper and lower openings of the cylindrical water collection container as the main body of the water collector can be opened and closed with a lid, and the water is open in the water such as the ocean Submerge and collect water by closing the opening of the water collection container with the lid.

  The water collection device is provided with an air hole closed by an air hole plug at the upper end of the water collection container, and a drain valve is provided at the lower end of the water collection container. And in a water sampler, after loosening an air hole plug and connecting the inside and outside of an air hole, it can drain from a drainage valve.

  The air hole plug has an external thread that is screwed into the internal thread on the inner circumference of the air hole, and a cylindrical knob that is integral with the external thread, and the operator pinches and turns the outer edge of the knob with a finger. Are tightened or loosened against the air hole.

  However, when loosening the air hole plug, the knob part is turned to drain it out of the water and drain it, so when the operator pinches the outer periphery of the wet knob part with a finger, the knob part becomes small and cylindrical. In some cases, there is a problem that the finger slips and the task becomes difficult.

  When tightening the air hole plug, insert the male screw of the air hole plug into the female screw of the air hole while holding a seal member such as an O-ring between the knob of the air hole plug and the water collection container. However, there is a problem that the torque at the time of screwing, that is, the tightening torque varies depending on the operator, and the seal member may be damaged or the air hole may not be closed sufficiently.

Patent No. 3181598 gazette

  The problem to be solved is that the finger of the worker is slippery when loosening and the work is difficult, and the tightening torque is varied depending on the worker when tightening.

According to the present invention, the hollow finger of the water collector is communicated with the inside of the water collector in order to prevent the finger of the worker from slipping on loosening and to suppress variation in tightening torque by the worker when tightening. A resin-made air hole plug of a water sampler for closing an air hole opened at the time of drainage by screwing, an external thread portion screwed to the air hole, and the screwing operation and screwing release operation The knob portion has an engagement portion on the outer peripheral surface or surface for engaging a finger in the rotational direction at the time of the rotation operation, and the knob portion has a tapered back surface The large diameter portion is continuous with the male screw portion, and the large diameter portion is larger in diameter than the male screw portion and abuts on the surface of the water collector, and the large diameter portion has an opening of a communication hole. And the communication hole is formed by opening the tip of the male screw portion and the large diameter portion. And a seal member formed on the large diameter portion and engaged and disposed between the tapered back surface of the knob portion and the water collector to close the opening of the large diameter portion. To be the main feature.

  In the air hole plug of the present invention, since the finger can be engaged with the engaging portion on the outer peripheral surface or surface of the knob portion in the rotational direction, the operator's finger is less slippery when loosened, and the operation is easily and reliably It can be done.

  And the air hole plug of this invention can suppress the dispersion | variation in the tightening torque by a worker.

It is a perspective view which shows the water collector which has an air hole plug (Example 1). It is a perspective view which shows the air hole plug periphery of FIG. 1 (Example 1). It is a perspective view of the air hole plug of FIG. 2 (Example 1). It is a front view of the air hole plug of FIG. 3 (Example 1). It is a side view of the air hole plug of FIG. 3 (Example 1). It is a top view of the air hole plug of FIG. 3 (Example 1). It is a rear view of the air hole plug of FIG. 3 (Example 1). It is a front view showing an air hole plug concerning a modification (example 1). It is a front view of an air hole plug (Example 2). It is a top view of the air hole plug of FIG. 9 (Example 2). It is a front view of an air hole plug (Example 3). It is a top view of the air hole plug of FIG. 11 (Example 3). It is a front view which shows the air hole plug which concerns on a modification (Example 3). It is a front view of an air hole plug (Example 4). It is a top view of the air hole plug of FIG. 14 (Example 4). It is a front view of an air hole plug (Example 5). It is a top view of the air hole plug of FIG. 16 (Example 5). It is a principal part front view of a water sampler (Example 6).

  Providing an engaging portion for engaging the finger in the rotational direction with the knob portion of the air hole plug for the purpose of preventing the finger of the worker from slipping when loosening and suppressing variation in tightening torque by the worker when tightening. Realized by

  Specifically, it is an air hole plug of a water collector for connecting the inside and the outside of the hollow water collector and for closing the air hole opened at the time of drainage from inside the water collector by screwing. It has a male screw portion for general use, and a knob portion which is a column integral with the male screw portion and is rotated at the time of screwing operation and screwing release operation of the male screw portion. The knob portion has an engagement portion on the outer peripheral surface or surface for engaging a finger in the rotational direction at the time of rotational operation.

  The knob portion may be cylindrical. In this case, the engaging portion may be a protrusion protruding from the outer peripheral surface or the surface. As a projection part, it is also possible to set it as the projection part which was projected from the surface and was formed along the chord which ties two points on the perimeter of the surface. The ridge portion may be formed along the diameter of the surface of the knob portion and between two points on the outer periphery of the surface.

  Also, the knob portion may be formed in a prismatic shape. In this case, the engaging portion is formed of a prismatic side surface located on the outer periphery of the knob portion.

  Further, the knob portion may have a cylindrical shape in which a part of the outer periphery is flat. In this case, the engaging portion is a flat surface.

  In addition, the knob portion may have an elliptic cylindrical shape. In this case, the engaging portion is an outer peripheral surface of an elliptic cylindrical shape.

  In a water sampling apparatus equipped with such an air hole plug, a hollow main body, an air hole communicating the inside and outside of the main body, and an external thread of the air hole plug provided on the inner periphery of the air hole are screwed together And a water sealing member disposed between the main body and the knob of the air hole plug around the air hole.

  The body portion of the water collector may have a screwing mark around the air hole plug. In this case, the male screw part is screwed to the female screw part on the air hole side with an appropriate torque by positioning the engaging part with respect to the mark.

[Structure of water collector]
FIG. 1 is a perspective view showing a water collector having an air hole plug.

  As shown in FIG. 1, the water collector 1 of the present embodiment includes a water collection container 3, an opening / maintenance mechanism 5, an air hole plug 7, and a drainage valve 9.

  The water collecting container 3 is a main body of the water collecting device 1 and is formed of resin in a hollow cylindrical shape. Both ends of the water sampling container 3 in the axial direction of the cylinder are opened, and lids 11 and 13 made of resin are attached so as to be able to open and close. The water collection container 3 is submerged in water, such as in the sea, in a state where the opening is opened, and water is collected by closing the opening with the lids 11 and 13 in a state where water is contained inside.

  The closing operation by the lids 11 and 13 is performed by maintaining the open state of the lids 11 and 13 by the open maintaining mechanism 5 and releasing the maintenance.

  That is, the lids 11 and 13 are coupled by a biasing member (not shown) such as a coil spring or a rubber rope passing through the inside of the water sampling container 3 and the opening of the water sampling container 3 is This closed state is maintained as it is closed.

  The opening maintenance mechanism 5 maintains the lids 11 and 13 in the open state against the biasing force of the biasing member, and is attached to the outer peripheral surface of the water collecting container 3 along the axial direction. . The opening maintaining mechanism 5 includes upper and lower mount blocks 15 and 17 made of resin, a push rod 19, and an intermediate block 21.

  The upper and lower mount blocks 15 and 17 are fixed to the outer peripheral surface of the water sampling container 3. A push rod 19 is supported movably in the axial direction with respect to the upper and lower mount blocks 15 and 17.

  That is, the push rod 19 is inserted through the upper mount block 15 and supported by the biasing member 23 such as a coil spring with respect to the lower mount block 17, and a trigger member (not shown) called messenger collides with the tip. And moves in the axial direction against the biasing force of the biasing member 23. An intermediate block 21 is supported by the push rod 19.

  The intermediate block 21 is hooked with a wire (not shown) extending from the tip portions 11a and 13a of the lids 11 and 13 to maintain the lids 11 and 13 in the open state. The intermediate block 21 is axially movable along with the push rod 19 against the biasing force of the biasing member 23. The axial movement releases the hooking of the wire, and the lid 11 and the lid 11 Release the maintenance of the open state of 13.

  The air hole plug 7 is made of resin and closes the air hole 25 (see FIG. 6) provided at the upper end portion of the water collecting container 3. The air hole 25 is formed penetrating the inside and the outside of the water collection container 3, and the air hole plug 7 is attached to the air hole 25 by screwing and loosening the inside and the outside of the water collection container 3 by loosening. Make it communicate. The details of the air hole plug 7 will be described later.

  The drainage valve 9 is made of resin, closes a drainage port (not shown) provided at the lower end portion of the water collecting container 3, and protrudes from the outer peripheral surface of the water collecting container 3. The drainage valve 9 allows communication between the inside and the outside of the water collection container 3 by pushing the water collection container 3 into the water collection container 3 side, and enables the water collection container 3 to be drained.

  The drainage is performed in a state where the water collector 1 is withdrawn from the water, but the inside and the outside of the water collection container 3 are communicated in advance by the air hole plug 7 and the inside of the water collection container 3 is opened to the atmosphere. deep. Thereby, in the water collector 1, it can drain now smoothly.

[Air hole plug]
2 is a perspective view showing the periphery of the air hole plug of FIG. 1, and FIGS. 3 to 7 are a perspective view, a front view, a side view, a plan view and a rear view of the air hole plug of FIG.

  The air hole plug 7 includes an external thread 27 and a knob 29.

  The male screw portion 27 is a portion for screwing to the air hole 25, which is screwed to the female screw portion 25 a on the air hole 25 side. In this embodiment, the internal thread 25a on the air hole 25 side is formed by cutting an internal thread on the inner periphery of the air hole 25, but is fixed to the inner peripheral surface or the outer peripheral surface of the water collection container 3 It is also possible to form a nut-like member which is continuous with the uncut air holes.

  The male screw portion 27 is a cylinder whose male screw is cut on the outer peripheral surface. A communication hole 31 communicating the inside and the outside of the water sampling container 3 is provided in the axial center portion of the male screw portion 27. The communication hole 31 is formed along the axial center direction of the male screw portion 27 from the distal end to the proximal end.

  The proximal end of the male screw portion 27 is continuous with the uncut large diameter portion 33 of the male screw. The large diameter portion 33 is larger in diameter than the male screw portion 27 and smaller in diameter than the knob portion 29, and connects the male screw portion 27 and the knob portion 29. The communication hole 31 is open at the outer peripheral surface of the large diameter portion 33. The large diameter portion 33 has a slight curvature on the outer peripheral surface in order to fit a seal member 35 described later on the outer periphery.

  The knob portion 29 has a columnar shape integral with the male screw portion 27, and is rotated around the axis by the finger of the worker at the time of screwing operation and releasing operation of the male screw portion 27 to the female screw portion 25a. . Here, the time of screwing operation means the time of screwing into the female screw portion 25a of the male screw portion 27, and the time of screwing release operation means the time of performing the opposite operation.

  The knob portion 29 of the present embodiment is integrally continued to the male screw portion 27 via the large diameter portion 33. The back surface 29 a of the knob portion 29 adjacent to the large diameter portion 33 is formed in a tapered shape which becomes larger in diameter as it is separated from the large diameter portion 33.

  A seal member 35 composed of an O-ring for water stop or the like is disposed between the knob portion 29 and the water collection container 3. The seal member 35 is formed in a ring shape having a circular cross section fitted to the outer periphery of the large diameter portion 33. The seal member 35 is fastened between the knob portion 29 and the water collection container 3 to close the opening 31 a of the communication hole 31 of the large diameter portion 33.

  Therefore, when the opening 31 a of the large diameter portion 33 of the communication hole 31 is opened by loosening the air hole plug 7 of the present embodiment with respect to the air hole 25, the air hole plug 7 of the water sampling container 3 is It is designed to communicate inside and outside. Thus, in the present embodiment, the air hole 25 is opened by the communication hole 31.

  In addition, the air hole plug 7 can also omit the communicating hole 31 and release the air hole 25 by removing it. In this case, the large diameter portion 33 can also be omitted.

  The knob portion 29 of the present embodiment is provided with an engagement portion 37 that causes the operator to engage a finger in the rotational direction when the user performs a rotational operation.

  The engaging portion 37 in the present embodiment is a protrusion protruding from the surface 29b of the knob 29, particularly a ridge formed along a chord connecting two points on the outer periphery of the surface 29b. Here, the surface 29 b of the knob portion 29 refers to a surface in the axial direction which is located on the opposite side of the water collection container 3. The surface in the axial direction, which is located on the water sampling container 3 side of the knob portion 29, is the back surface 29a. The engaging portion 37 may be, for example, a projection which protrudes from the outer peripheral surface 29 c instead of the surface 29 b of the knob portion 29 as shown in FIG. 8.

  It is not necessary to cross between two points on the outer periphery if the engaging portion 37 which is a ridge portion is formed along a chord, and it is also possible to partially form between two points on the outer periphery . In the present embodiment, the engaging portion 37 is formed along the diameter of the surface 29 b of the knob portion 29 between two points on the outer periphery of the surface 29 b.

  The engaging portion 37 is in the form of a rectangular plate elongated in the extending direction, and has engaging surfaces 37a on both sides in a direction (rotational direction of the knob portion 29) in the direction perpendicular to the extending direction. The engaging portion 37 applies an operator's thumb and forefinger to the engaging surface 37a so that the engaging portion 37 can be held (engaged), and the rotation operation of the knob portion 29 can be easily performed.

  In particular, since the air hole plug 7 is loosened when the water collector 1 is withdrawn from the water and drained as described above, the knob portion 29 is usually wet with water and slippery, making it difficult to perform a rotating operation. However, in the present embodiment, since the worker can engage the finger with the engaging portion 37 and can perform the rotation operation, it is possible to easily and reliably rotate the knob portion 29 even when it is wet with water.

  Further, when the air hole plug 7 is tightened, the engagement portion 37 serves as a guide, and torque management can be performed. For example, the knob portion 29 of the air hole plug 7 is abutted against the outer peripheral surface of the water sampling container 3 through the seal member 35, and the direction of the engaging portion 37 is displaced 90 degrees or 180 degrees from that state. For example, the air hole plug 7 can be tightened with an appropriate torque.

[Effect of Example 1]
The air hole plug 7 of the present embodiment has a columnar shape integral with the male screw portion 27 for screwing engaged with the female screw portion 25a on the air hole 25 side, and the male screw portion 27 during screwing operation and screwing release operation The knob portion 29 has an engaging portion 37 on the surface 29b for engaging the finger of the worker in the rotational direction at the time of rotational operation.

  Therefore, since the air hole plug 7 of this embodiment can engage the finger of the worker in the rotational direction with the engaging portion 37 of the surface 29 b of the knob portion 29, when the knob portion 29 is wet with water However, when loosening, the operator's finger does not slip easily, and the work can be performed easily and reliably.

  In addition, the air hole plug 7 of the present embodiment serves as a measure of the torque when the engaging portion 37 is tightened, and the tightening can be performed with an appropriate torque, so that the variation of the tightening torque by the operator can be suppressed.

  In this embodiment, since the knob portion 29 has a cylindrical shape and the engaging portion 37 is composed of a protrusion protruding from the surface 29 b, the finger is hooked on the engaging portion 37 as the protrusion to more easily and reliably The air hole plug 7 can be loosened.

  Moreover, since the engaging portion 37, which is a projecting portion, is a projection formed along a chord connecting two points on the outer periphery of the surface 29b of the knob portion 29, the operator applies the thumb and forefinger. Thus, the air hole plug 7 can be loosened more easily and reliably.

  In particular, since the engaging portion 37 as the projecting portion is formed along the diameter of the surface 29b of the knob portion 29 and between two points on the outer periphery of the surface 29b, the operator applies the thumb and forefinger It is possible to smoothly perform the rotation operation of the knob portion 29 in a jammed state.

  The water collector 1 having the air hole plug 7 enables the air hole plug 7 to be smoothly loosened and drained from the inside even immediately after the water collection and withdrawal from water.

  FIG. 9 is a front view of an air hole plug according to a second embodiment, and FIG. 10 is a plan view of the same. In the second embodiment, the same components as those in the first embodiment will be assigned the same reference numerals and overlapping explanations will be omitted.

  In the air hole plug 7 of the present embodiment, the engaging portion 37 is provided on the outer peripheral surface 29 c of the knob portion 29. Specifically, the knob portion 29 is formed in a prismatic shape, and the engaging portion 37 is formed of a prismatic side surface 29 d located on the outer periphery of the knob portion 29.

  In the present embodiment, the knob portion 29 is formed in a pentagonal pillar shape. Thereby, the directivity of the knob portion 29 can be easily recognized, and the torque management at the time of tightening can be easily performed. The knob portion 29 may be a triangular prism. Also in this case, the directivity is easy to see, and the same function and effect as the pentagonal prism can be obtained. However, it is also possible to use the knob portion 29 as a square pole, a hexagonal pole or the like.

  In addition, also in the present embodiment, the same function and effect as in the first embodiment can be obtained.

  FIG. 11 is a front view of an air hole plug according to a third embodiment, and FIG. 12 is a plan view of the same. In the third embodiment, the same components as those in the first embodiment will be assigned the same reference numerals and overlapping explanations will be omitted.

  In the air hole plug 7 of the present embodiment, the engaging portion 37 is provided on the outer peripheral surface 29 c of the knob portion 29 as in the second embodiment. However, in the present embodiment, the knob portion 29 is formed in a cylindrical shape in which a part of the outer periphery is a flat surface 29e, and the engaging portion 37 is formed of the flat surface 29e.

  Although only one flat surface 29e is provided in FIGS. 11 and 12, it is also possible to provide a pair of flat surfaces 29e facing in the radial direction, as shown in FIG. 13, for example.

  Also in the third embodiment, the same function and effect as the first embodiment can be obtained.

  FIG. 14 is a front view of an air hole plug according to a fourth embodiment, and FIG. 15 is a plan view of the same. In the fourth embodiment, the same components as those in the first embodiment will be assigned the same reference numerals and overlapping descriptions will be omitted.

  In the air hole plug 7 of the present embodiment, the engaging portion 37 is provided on the outer peripheral surface 29 c of the knob portion 29 as in the second embodiment. In the present embodiment, the knob portion 29 is formed in an elliptic cylindrical shape, and the engaging portion 37 is formed of an outer peripheral surface 29 c of an elliptic cylindrical shape.

  Also in the fourth embodiment, the same effect as that of the first embodiment can be obtained.

  FIG. 16 is a front view of an air hole plug according to a fifth embodiment, and FIG. 17 is a plan view of the same. In the fifth embodiment, the same components as those in the first embodiment will be assigned the same reference numerals and overlapping explanations will be omitted.

  In the air hole plug 7 of the present embodiment, the engaging portion 37 is provided on the outer peripheral surface 29 c or the surface 29 b of the knob portion 29.

  Specifically, the knob portion 29 is formed in a cylindrical shape, and is provided with a recess 29 f which is directed inward in the radial direction from the outer peripheral surface 29 c. The recess 29 f is provided from the front surface 29 b to the rear surface 29 a of the knob portion 29 in the axial direction. The recess 29 f is preferably formed in a range in which the sealing member 35 is not exposed.

  Also in the fifth embodiment, the same effect as that of the first embodiment can be obtained.

  FIG. 18 is a front view of an essential part of a water collector according to a sixth embodiment. In the fifth embodiment, the same components as those in the first embodiment will be assigned the same reference numerals and overlapping explanations will be omitted.

  The water collector 1 of this embodiment has a water collection container 3 having a screw 39 for marking around the air hole plug 7. Others are the same as Example 1 including the air hole plug 7.

  In the water collector 1, when the air hole plug 7 is tightened, the engaging portion 37 is positioned with respect to the mark 39 so that the male screw portion 27 of the air hole plug 7 is an internal thread on the air hole 25 side with an appropriate torque. It is possible to screw the portion 25a, that is, to tighten the air hole plug 7.

  For example, the air hole plug 7 is abutted against the outer peripheral surface of the water sampling container 3 through the seal member 35 and the knob portion 29 of the air hole plug 7 and the engaging portion 37 is aligned with the mark 39 from that state. It becomes possible to perform 7 tightening with appropriate torque.

  In addition, positioning of the mark 39 and the engaging part 37 is not restricted above, It is possible to set freely.

  For example, in the case of the air hole plug 7 of the second embodiment, the corner of the polygonal shape is aligned with the mark 39. In the case of the air hole plug 7 according to the third embodiment, the mark 39 can be visually recognized at a portion where the flat surface 29e is present, and the mark 39 can not be visually recognized at a portion where the flat surface 29e is absent. You may In the case of the fourth embodiment, any positioning method of the first embodiment and the third embodiment may be used, and in the case of the fifth embodiment, the same positioning method as the third embodiment can be employed.

  In the sixth embodiment, the air hole plug 7 can be tightened more easily and reliably with an appropriate torque.

  Other effects and effects similar to those of the first embodiment can be achieved.

1 Water collection device 3 Water collection container (main part)
Reference Signs List 7 air hole plug 25 air hole 25a female screw portion 27 male screw portion 29 knob portion 29b surface 29c outer peripheral surface 35 seal member 37 engaging portion 29d side surface 29e flat surface 39 mark

Claims (8)

A resin-made air hole plug of a water collector for communicating the inside and the outside of a hollow water collector and for closing the air hole opened at the time of drainage from the inside of the water collector by screwing,
An external thread screwed into the air hole;
And a knob portion that is rotationally operated during the screwing operation and the screwing release operation,
The knob portion has, on an outer peripheral surface or surface, an engagement portion which engages a finger in the rotational direction at the time of the rotation operation,
The knob portion continues from the tapered back surface to the male screw portion through the large diameter portion ,
The large diameter portion is larger in diameter than the male screw portion and strikes the surface of the water collector,
An opening of the communication hole is formed in the large diameter portion,
The communication hole is formed across the tip of the male screw portion and the opening of the large diameter portion.
The seal member is disposed so as to be fitted to the large diameter portion, and is fastened between the tapered back surface of the knob portion and the water collector to close the opening of the large diameter portion.
An air hole plug characterized by that. The air hole plug according to claim 1, wherein
The knob portion is cylindrical,
The engaging portion includes a protrusion protruding from the outer peripheral surface or the surface.
An air hole plug characterized by that. The air hole plug according to claim 2, wherein
The projection is a ridge formed along a chord that protrudes from the surface and connects two points on the outer periphery of the surface.
An air hole plug characterized by that. The air hole plug according to claim 3, wherein
The ridge portion is formed along a diameter of the surface of the knob portion and between two points on an outer periphery of the surface,
An air hole plug characterized by that. The air hole plug according to claim 1, wherein
The knob portion is formed in a prismatic shape,
The engaging portion is formed of the side surface of the prismatic column located on the outer periphery of the knob portion.
An air hole plug characterized by that. The air hole plug according to claim 1, wherein
The knob portion has a cylindrical shape in which a part of the outer periphery is flat.
The engagement portion comprises the flat surface.
An air hole plug characterized by that. The air hole plug according to claim 1, wherein
The knob portion has an elliptic cylindrical shape,
The engagement portion is an outer peripheral surface of the elliptic cylindrical shape.
An air hole plug characterized by that. It is a water collector provided with the air hole plug according to any one of claims 1 to 7,
The water collector has a screwing mark around the air hole plug,
In the air hole plug, the male screw portion is screwed into the air hole with an appropriate torque by positioning the engagement portion with respect to the mark.
Water collector characterized by that.

Images