JP2593379Y2 - Vertical container lid lifting device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The vertical lifting and lowering device for a vertical container according to the present invention raises and lowers the lid by power, for example, in order to open and close the lid of a large-sized culture device without manual operation.

[0002]

2. Description of the Related Art In order to culture various microorganisms and plant cells,
Various culture devices are used. The culture device includes a vertical container main body having an open upper end and a lid. At the time of the culturing operation, the upper end opening of the container body is closed by the lid, and the lid is pressed against the container body by a restraining member such as a bolt. At this time, a sealing material such as an O-ring is elastically compressed between the lower surface of the lid and the upper end surface of the container main body, so that airtightness and liquid tightness between the lower surface of the lid and the upper end surface of the container main body are improved. Hold.

[0003]

SUMMARY OF THE INVENTION The present invention is to provide a vertical container lid elevating device which can easily open and close a lid constituting a large-sized culture apparatus.

[0004] In a large-sized culture device used in a factory, for example, the height of a container body alone exceeds 1 m and the diameter of a lid is 6 mm.
Some are around 0cm. Since the lid of such a large culture device is heavy and is located at a high position from the floor, it is difficult to raise and lower the lid manually. Because of this,
It is conceivable to open and close this lid using an actuator such as a hydraulic cylinder.However, if the lid exists above the container body simply by raising and lowering the lid by the actuator, this lid will be in the way even when opened. It is difficult to perform various tasks.

For this reason, when the lid is opened, it is conceivable to retract the lid from above the container body. In this case, it is necessary to prevent the lid from moving in the horizontal direction while moving the lid up and down. This is necessary in order to prevent injuries to workers due to inadvertent movement of the lid.

The vertical lifting device for a vertical container according to the present invention has been devised in view of such circumstances.

[0007]

The vertical container lid elevating device of the present invention is assembled into a vertical container having a container body having an open upper end and a lid for opening and closing the upper end opening of the container body. The lid is raised and lowered.

The vertical lifting device for a vertical container according to the present invention has a lifting end having a base end fixed to the upper surface of the lid and a distal end projecting radially outward from an outer peripheral edge of the lid. When,
An output shaft that can be displaced in the vertical direction, and an actuator that is disposed vertically outside the container body with the output shaft protruding upward; A push-up arm, which is arranged in a vertical direction, has a lower end connected to an upper end of the output shaft, and a tip end of the lifting arm, which is rotatably pivoted about the vertical axis, at the upper end. A guide rod supported on the outer surface of the container body in a vertical direction, and an upper portion of the guide rod provided at a position lower than the lifting arm and horizontally offset from the vertical axis. Free and located at the bottom
A detent ring forming a delimiting wall .

[0009] Then, the detent ring are those exiting the upper side of the guide rod <br/> When the lid is raised up to the upper end position by the output shaft.

[0010]

The vertical lifting device for a vertical container according to the present invention, constructed as described above, moves the output shaft of the actuator in the vertical direction and raises and lowers the lid via the push-up arm and the lifting arm. Open and close the top opening of the main unit.

[0011] until the lid is moved to the upper end position, the detent Li
Ring is because it has been inserted into the guide rod, not that lifting arm swings about a vertical axis, thus the lid is not displaced in the horizontal direction. When this lid moves to the upper end position,
The guide rod comes out of the detent ring, and the lifting arm becomes swingable about a vertical axis. If the lid is pushed in the horizontal direction in this state, the lid retreats laterally from the upper end opening of the container body, and this upper end opening can be largely opened. To close the lid, place the retracted lid on the container
When moving over the body, the positioning wall is
And the lid stops just above the container body and rotates
Fit the retaining ring to the guide rod and lower the lifting arm
When lowered, the lid is placed in the proper position on the container body.

[0012]

1 to 7 show an embodiment of the present invention applied to a culture apparatus . A lower flange 2 is fixed to the upper end opening of the container body 1 constituting the vertical container of the culture apparatus over the entire circumference. A heating jacket 3 is provided on the outer peripheral surface of the container body 1 so that the liquid stored in the container body 1 can be heated to a desired temperature. Further, connection pipes 4 and 4 are provided at the bottom of the container body 1 so that a desired liquid can be freely put into and taken out of the container body 1.

A lid 5 for opening and closing the upper end opening of the container body 1 is provided above the container body 1. An upper flange 6 facing the lower flange 2 is fixed to the lower end opening of the lid 5 over the entire circumference. Such a lid 5 is provided with a connection portion for inserting or connecting various sensors and hoses.

An engaging groove 7 (FIG. 3) is formed over the entire periphery of the lower flange 2 near the inner periphery of the upper surface. An O-ring 8 as a sealing material is fitted in the locking groove 7. The upper end of the O-ring 8 protrudes upward from the upper end opening of the locking groove 7 in a free state, but is elastically compressed when the lid 5 described below is tightened, so that the locking groove 7
Is pushed into. Therefore, the height of the O-ring 8 protruding from the locking groove 7 in the free state is a compression allowance of the O-ring 8.

Further, a plurality of cutouts 9 (10 in FIG. 2 as shown in FIG. 2 ) are provided at positions where the outer peripheral edges of the lower and upper flanges 2 and 6 are aligned with each other . Has formed. On the outer peripheral surface of the upper end portion of the container body 1, brackets 11, 1 are located just below the notches 9, 9.
1 and bolts 12, 12 on each bracket 11, 11.
Is pivotally supported by horizontal axes 13, 13. And, at the upper end of each bolt 12, 12, this bolt 12,
Cap nuts 14, 14, which together with 12 constitute a holding member, are screwed together. Each cap nut 14, 14 is provided with an annular portion 15, 15 for inserting a tool (bar) for rotating the cap nut 14, 14.

One corner of the upper surface of the lid 5 (upper left corner in FIG. 4 )
, The base end of the lifting arm 16 is fixed. The tip of the lifting arm 16 projects diametrically outward from the outer peripheral edge of the lid 5. And this hanging arm 16
A circular mounting plate 17 is welded and fixed to the lower edge of the tip of the mounting plate 17, and a coupling plate 18 is screwed and fixed to the lower surface of the mounting plate 17.

On the other hand, a bracket 20 is fixed to a portion of the lower side surface of the container body 1 located below the tip of the lifting arm 16, and a horizontal shaft 2 provided on the bracket 20 is provided.
1 by pivotally supporting the actuator 19, the actuator 19 is disposed in the vertical direction. The actuator 19 has an output shaft 24 at the upper end covered with a bellows 23. Also, this actuator 19
Has a built-in feed screw mechanism driven by a motor 22, and the output shaft 24
Is displaced in the vertical direction.

The tip of the lifting arm 16 and the upper end of the output shaft 24 of the actuator 19 are connected to a push-up arm 25 .
It can be freely contacted via The push-up arm 25 includes a lower end connecting member 26 connected to the upper end of the output shaft 24, a cylinder member 27 connected and fixed to the upper end of the lower end connecting member 26, and an outer half of the upper end surface of the cylinder member 27. The holding member 28 fixed to the portion, the thrust bearing 29 held inside the holding member 28, and the upper end portion are connected to the tip end of the lifting arm 16, and the inside of the thrust bearing 29 is inserted. , And a connecting rod 30 inserted into the cylinder member 27. This connecting rod 3
0 functions as a vertical axis pivotally supporting the lifting arm 16.

The cylinder member 27 has a pair of inner and outer cylinder holes 31 and 32, each extending in the vertical direction. The connecting rod 30 is inserted into a diametrically outer cylinder hole 31 of the container body 1. Sleeves 33, 33 made of a slippery material are provided between the inner peripheral surface of the cylinder hole 31 and the outer peripheral surface of the connecting rod 30.
Is provided. Therefore, the connecting rod 30 is displaced in the axial direction (vertical direction) with respect to the cylinder member 27,
In addition, rotation is free. A stopper 34 is fixed to a portion of the lower end of the connecting rod 30 located inside the lower end connecting member 26 to prevent the connecting rod 30 from coming out of the cylinder hole 31 upward. I have.

On the other hand, a small diameter portion 35 is formed at the upper end of the connecting rod 30, and an upper end connecting member 36 is formed on the small diameter portion 35.
Is fitted outside. A key 37 is provided between the inner peripheral surface of the upper end coupling member 36 and the outer peripheral surface of the small diameter portion 35 to prevent the upper end coupling member 36 from rotating with respect to the small diameter portion 35. Further, a flange portion 38 is formed on the outer peripheral surface of the intermediate portion of the upper end connecting member 36. Then, the upper end connecting member 36
The upper part of the flange 38 is inserted into through holes 39 and 40 formed in the mounting plate 17 and the coupling plate 18. In this state, a holding plate 41 is connected and fixed to the upper end surface of the connecting rod 30 by bolts 42.
The holding plate 41 and the flange 38 are connected by another bolt 43. As a result, the upper end of the connecting rod 30 is connected to the distal end of the lifting arm 16 via the upper connecting member 36, the mounting plate 17 and the connecting plate 18.

The lower end of the upper end connecting member 36 is inserted into the upper end opening of the holding member 28. In the illustrated embodiment, the O-ring 4 locked on the inner peripheral surface of the upper end opening is used.
The inner peripheral edge of the upper member 4 is slidably contacted with the outer peripheral surface of the lower end portion of the upper end connecting member 36 to prevent dust and the like from entering the holding member 28. Between the lower end surface 36a of the upper end coupling member 36 and the upper surface of the thrust bearing 29 facing each other,
With the output shaft 24 of the actuator 19 lowered to the lower end position, a gap 45 having a height h is formed.
The height h of the gap 45 is greater than the compression margin of the O-ring 8. The height dimension h is smaller than the height dimension H of the gap 46 between the upper surface of the holding member 28 and the lower surface of the flange 38 (h <H). And before the lower surface of the flange 38 abuts,
The lower end surface 36a of the upper end connecting member 36 is brought into contact with the upper surface of the thrust bearing 29.

Further, a guide rod 47 is supported in a vertical direction above the bracket 20 for supporting the actuator 19 on the side surface of the intermediate portion of the container body 1. The middle portion of the guide rod 47, which is supported at the upper and lower two positions of the lower half, is inserted into the inner cylinder hole 32 of the pair of inner and outer cylinder holes 31 and 32 formed in the cylinder member 27. Between the inner peripheral surface of the cylinder hole 32 and the outer peripheral surface of the guide rod 47, the sleeves 48, 48 made of a slippery material are interposed, so that the cylinder member 27 moves along the guide rod 47, It can be moved up and down with a light force.

With the cover 5 being moved above the container body 1 by a part of the mounting plate 17 and the coupling plate 18,
Through holes 49 and 50 are formed at positions matching the guide rod 47, respectively. The inner diameter of the through hole 49 formed in the mounting plate 17 is sufficiently larger than the outer diameter of the guide rod 47, and the inner diameter of the through hole 50 formed in the coupling plate 18 is larger than the outer diameter of the guide rod 47. Each is slightly larger and formed. A detent ring 51 through which the guide rod 47 can be inserted is mounted inside the through hole 50 of the coupling plate 18.

As shown in FIGS. 6 and 7 , an arcuate positioning wall 52 is provided on the lower opening peripheral edge of the detent ring 51 made of a slippery material such as nylon. Such a detent ring 51 is mounted inside the through hole 50 with the positioning wall 52 positioned on one side in the circumferential direction (not on the diametrical end) of the circular arc centered on the connecting rod 30. doing. A pin (not shown) is inserted into a small hole 53 formed in the rotation preventing ring 51 to prevent the rotation preventing ring 51 from rotating inside the through hole 50.

The operation of the vertical container cover elevating device of the present invention constructed as described above is as follows. First, when closing the upper end opening of the container body 1 which has been open, the lifting arm 16 is connected so that the lid 5 which has been retreated to the side from the upper end opening is moved above the upper end opening. make swing around the rod 30. At this time, the arm 16 lifting the lid 5 aligned is, as shown by the chain line in FIG. 4, there Ri <br/> Ah in the raised position, the output shaft 24, the push-up arm 25 in the uppermost position. When the lifting arm 16 is swung, the upper end side surface of the guide rod 47 comes into contact with the inner side surface of the positioning wall 52 of the detent ring 51, and at the same time, the upper flange 6 at the lower end of the lid 5 and the lower side of the upper end of the container body 1. The side flange 2 is aligned.

Therefore, the actuator 19 is moved from this state.
Of the output shaft 2 through the feed screw mechanism.
4 is moved downward. When the lifting arm 16 is raised to open the lid 5, the cylinder member 2
7 rises relative to the connecting rod 30 and the thrust bearing 29
And the lower surface 36a of the upper end connecting member 36 are in contact with each other. That is, the play of the push-up arm 25 including the cylinder member 27 is performed by the stopper 34 and the lower surface of the cylinder member 27.
Move between. Therefore, the output shaft 2 is moved from the state where the lid 5 is opened.
When the cover 4 is moved downward, the cover 5 is lowered by the movement of the output shaft 24 via the push-up arm 25.

When the lid 5 is slightly lowered in this way, the upper end of the guide rod 47 enters the inside of the detent ring 51. In this state, the lid 5 is
It does not swing around zero. Therefore, the lower flange 2 and the upper flange 6, which have been once aligned, do not shift.

When the lid 5 is further lowered from this state, the lower surface of the upper flange 6 fixed to the lid 5 and the container body 1
The upper surface of the lower flange 2 fixed to the container body abuts via the O-ring 8, and the upper end opening of the container body 1 is closed. Even after the lid 5 closes the upper end opening of the container body 1 as described above, the output shaft 24 of the actuator 19 descends by the play of the push-up arm 25 and reaches the lower end in the moving direction. As a result, the scan
Gap of height h between the last bearing 29 and the upper end coupling member 36
A gap 45 is formed.

After the upper flange 6 is placed on the upper surface of the lower flange 2 in this manner, the bolts 12, 12 which have been rotated downward around the horizontal shafts 13, 13 until then are shown in FIGS. The bolts 12 and 12 are inserted upwardly into the notches 9 and 10 on the outer peripheral edges of the flanges 2 and 6 as described above. At this time, the cap nuts 14, 14 screwed to the bolts 12, 12 are moved toward the tips of the bolts 12, 12, respectively.

Each of the bolts 12, 12 is connected to each of the notches 9,
10, the cap nuts 14, 14 screwed to the bolts 12, 12 are rotated, and each cap nut 1 is rotated.
The lower surfaces of the upper and lower flanges 4 and 14 strongly suppress the upper flange 6 near the outer periphery. As a result, the O-ring 8 locked in the locking groove 7 of the lower flange 2 is elastically crushed to such an extent that it does not protrude from the locking groove 7. Thus the along with the O-ring 8 is crushed, a lid 5 which is fixed the upper flange 6, and descends by compression allowance of the O-ring 8, the upper end coupling member constituting the upper portion of the press upper arm 25 36 is pushed downward via the lifting arm 16 .

Even when the upper end of the push-up arm 25 is pushed downward, the compression allowance is provided between the lower end surface 36a of the upper end connecting member 36 constituting the push-up arm 25 and the upper surface of the thrust bearing 29. A gap 45 having a height dimension h larger than
Since there is play in the compression direction, the cap nut 14
Even if the upper end connecting member 36 is pushed downward by the compression allowance due to the tightening, the lower end connecting member 26 of the push-up arm 25 does not push the output shaft 24 of the actuator 19 downward.
As a result, no excessive force is applied to the feed screw mechanism for raising and lowering the output shaft 24, and the actuator 19 is prevented from being damaged.

When the cover 5 is opened, the cap nut 1
Loosen 4 and 14 and cut out each bolt 12 and 12
After detaching and rotating downward, the actuator 19
Is raised. When the output shaft 24 rises by the height dimension h of the gap 45, the thrust bearing 2
9 and the lower surface 36a of the upper end coupling member 36 are in contact with each other,
The movement of the output shaft 24 is transmitted to the upper end coupling member 36.

To further raise the output shaft 24, the lid 5 is raised from the solid line position in FIG. 4 to the chain line position via the upper end connecting member 36, the mounting plate 17, the connecting plate 18, and the lifting arm 16. During the ascent, the lifting arm 16 does not swing around the connecting rod 30 because the guide rod 47 is present in the detent ring 51. Therefore, it is possible to prevent the lid 5 from inadvertently turning laterally.

When the lid 5 is completely lifted, the guide rod 4
7 comes out of the detent ring 51, and the lifting arm 16 can swing about the connecting rod 30. Then, the lid 5 is moved to the side to open the upper end opening of the container body 1 widely. At this time, the weight of the lid 5 is supported by the thrust bearing 29. Stopping the output shaft 24 of the actuator 19 at a desired position is performed by signals from the limit switches 55 and 55. Also, when stopping,
The brake 54 provided below the motor 22 is operated to prevent the stop position from deviating from a desired position.

[0035]

[Effects of the Invention] The vertical container lid lifting and lowering device of the present invention is constructed and operates as described above, so that the operation of opening and closing the heavy lid can be easily performed without manual operation, and the lid can be raised and lowered. It is possible to prevent the lid from accidentally moving in the horizontal direction during the operation, and to prevent the worker from being injured by the careless movement of the lid.

[Brief description of the drawings]

FIG. 1 is a half vertical sectional side view showing a culture apparatus into which a vertical container lid lifting / lowering apparatus of the present invention is incorporated.

FIG. 2 is a plan view of the same.

FIG. 3 is an enlarged view of a portion A in FIG. 1;

FIG. 4 is a sectional view taken along line BB of FIG. 2;

FIG. 5 is an enlarged view of a portion C in FIG. 4;

FIG. 6 is a vertical sectional view of a positioning ring.

FIG. 7 is a bottom view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container main body 2 Lower flange 3 Heating jacket 4 Connection pipe 5 Lid 6 Upper flange 7 Locking groove 8 O-ring 9, 10 Notch 11 Bracket 12 Bolt 13 Horizontal axis 14 Cap nut 15 Ring part 16 Lifting arm 17 Mounting plate 18 Coupling plate 19 Actuator 20 Bracket 21 Horizontal axis 22 Motor 23 Bellows 24 Output shaft 25 Push-up arm 26 Lower end coupling member 27 Cylinder member 28 Holding member 29 Thrust bearing 30 Connecting rod 31, 32 Cylinder hole 33 Sleeve 34 Stopper 35 Small diameter portion 36 upper end connecting member 36a lower end face 37 key 38 flange 39, 40 through hole 41 holding plate 42, 43 bolt 44 O ring 45, 46 gap 47 guide rod 48 sleeve 49, 50 through hole 51 detent ring 52 positioning wall 53 small Hole 54 bray 55 limit switch

Claims (1)

(57) [Scope of request for utility model registration] 1. A vertical container lid elevating device for assembling a vertical container having a container main body having an open upper end and a lid for opening and closing the upper end opening of the container main body and raising and lowering the lid. A lifting arm whose base end is fixed to the upper surface of the lid, and whose distal end protrudes diametrically outward from the outer peripheral edge of the lid,
An output shaft that can be displaced in the vertical direction, and an actuator that is disposed vertically outside the container body with the output shaft protruding upward; A push-up arm, which is arranged in a vertical direction, has a lower end connected to an upper end of the output shaft, and a tip end of the lifting arm, which is rotatably pivoted about the vertical axis, at the upper end. A guide rod supported on the outer surface of the container body in a vertical direction, and an upper portion of the guide rod provided at a position lower than the lifting arm and horizontally offset from the vertical axis. Freely positioned at the bottom
And a detent ring to form a fit wall, said detent
Rings, by the output shaft to come out to the upper side from the upper end of the guide rod that the lid is raised up to the upper end position
With the positioning wall facing the upper side of the guide rod
This is a vertical container lid lifting device that can swing freely in the direction away from the guide rod .