JP2593378Y2 - 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 that the lid is opened and closed using an actuator such as a hydraulic cylinder. However, simply raising and lowering the lid by the actuator may damage the actuator.

[0005] That is, when the lid is pressed against the upper end surface of the container body by a bolt serving as a holding member in a state where the lid is placed on the upper end opening of the container body, the gap between the lower surface of the lid and the upper end surface of the container body is reduced. , The sealing material is crushed, and the lid slightly descends. As a result, the output rod of the actuator is pushed downward, and an excessive force is applied to the actuator.

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

[0007]

SUMMARY OF THE INVENTION A vertical container lid elevating device according to the present invention comprises a container body having an open upper end, a lid for opening and closing the upper end opening of the container body, and a lid for closing the lid when the lid is closed. A sealing material elastically compressed between a lower surface of the fixed portion and an upper end surface of the portion fixed to the container body, and a pressing member for pressing the lid toward the upper surface of the container body when the lid is closed And the lid is moved up and down.

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; It is arranged over the vertical direction, and a push-up arm coupled to the upper end of the output shaft, and hanging the boost arms
That have interposed therebetween a big play than the compression margin of the sealing material between the raised arm. Also guide the lifting of the lifting arm
At the same time, guide the lifting arm at the upper limit position of the lifting arm
The guide rod to release the
It is provided outside the container body in parallel with the output shaft.

[0009]

The operation of the vertical lifting device of the present invention constructed as described above is as follows. First, when the output shaft of the actuator is moved downward to close the upper end opening of the container body, the push-up arm and the suspension supported by this are moved by gravity.
Raising arm and lid descend. In the course of such downward, upper <br/> Kifuta is lowered by the amount of the output shaft is lowered.

With the lowering of the lid, the lower surface of the portion fixed to the lid and the upper end surface of the portion fixed to the container body abut via a sealing material, and the upper opening of the container body is closed . Is stopped
You. The output shaft of the actuator descends by the play of the push-up arm and reaches the extreme position in the movement direction , that is, the lower end, even after the lid closes the upper end opening of the container body and stops , as described above. As a result, the upper end of the push-up arm connected to the output shaft
Play with the lifting arm, that is, greater than the compression allowance of the seal material
Gaps occur.

In this state, when the lid is pressed down on the upper surface of the container body by a pressing member, the lid is lowered by a compression allowance of the sealing material. Between the lifting arm and the push-up arm connected to the lid
In order to there is a large play than the compression margin, it is not the lower end of the push upper arm pushes the output shaft downward. As a result, no excessive force is applied to the actuator having the output shaft.

[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, at positions where the outer peripheral edges of the lower and upper flanges 2 and 6 are aligned with each other, a plurality of notches 9 and 10 (in the example shown in FIG. Is formed. On the outer peripheral surface of the upper end portion of the container body 1, a bracket 11,
11 and bolts 12, 1, 1 on each bracket 11, 11.
The lower end of 2 is pivotally supported by horizontal axes 13, 13. Then, this bolt 1 is attached to the upper end of each bolt 12.
Cap nuts 14 and 1 that constitute a holding member together with 2 and 12
4 is screwed. 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.

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, the raised position to <br/> Ah is, the output shaft 24, the boost arms 25 also Ru raised position near. Lifting the swinging arm 16 around the connecting rod 30, the upper end portion side of the guide rod 47, the detent to abut the inner surface of the positioning wall 52 of the ring 51 stops Then simultaneously, the lid 5 the lower end of the upper flange 6 and the lower flange 2 of the upper end of the container body 1 are 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 end surface 36a of the upper end connecting member 36 are in contact with each other. That is, the lower end surface 36a of the upper coupling member and the thrust shaft
The gap h between the receiving rod 29 and the stopper
It moves between the upper part 34 and the lower surface of the cylinder member 27. Therefore, when the output shaft 24 is moved downward from the state where the lid 5 is opened, the lid 5 is lowered via the push-up arm 25 by an amount corresponding to the movement of the output shaft 24.

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 connected to the connecting rod 3
It will not rotate 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. Output shaft 24 of the actuator 19, the lid 5 in this manner is drop-off below the after closes the top opening of the container main body 1, reaches a moving direction lower end. As a result, the thrust bearing 29 and the upper end coupling member
A gap h is formed between the gap and the gap 36.

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 so accompanied to 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 lifting arm 16 is coupled to the lid 5 equivalents Touch
Upper coupling member 36 which constitutes the upper end of that boost arms 25,
It is pushed down.

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]

[Effect of the Invention] Since the vertical container lid lifting / lowering device of the present invention is constructed and operates as described above, the opening / closing operation of the heavy lid can be easily performed without manual operation, and the driving source is used. By preventing an excessive force from acting on a certain actuator, it is possible to prevent the actuator from being damaged.

[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 container body having an open upper end, a lid for opening and closing an upper end opening of the container body, a lower surface of a portion fixed to the lid and an upper end surface of a portion fixed to the container body when the lid is closed. Sealing material elastically compressed between the, and when the lid is closed, assembling to a vertical container equipped with a suppressing member for pressing this lid toward the upper surface of the container body, and raising and lowering the lid, A vertical container lid elevating device, comprising: a lifting arm having a base end fixed to the upper surface of the lid and a distal end projecting diametrically outward from an outer peripheral edge of the lid; An actuator disposed vertically outside the container body with the output shaft projecting upward, and an output shaft extending vertically above the actuator. And the lower end is the upper end of the output shaft.
And a boost arms attached to, an arm lifting this boost arms
A play larger than the compression allowance of the seal material is interposed between
When raising and lowering the push-up arm and guiding the lid up and down,
In both cases, when the lid reaches the extreme position, release the lid guide
Guide rod to be parallel to the output shaft and push-up arm.
A vertical container lid elevating device attached to the outside of the body .