JPH06327914A - Filter device - Google Patents

Abstract

PURPOSE:To minimize the space in the plane of a set filter device by eliminating an electric wiring and a hydraulic pipeline at the site of a filter device to dispense with the operation of the wiring and pipeline and trouble, effectively utilizing the gravity of a lid to manually open and close the lid and minimizing the opening degree of the lid in mounting and dismounting a filter. CONSTITUTION:A lid 5 is freely turnably pivoted vertically around the horizontal shaft 4 of the main body 1 of a vessel. A tow rope 39 such as a load chain is laid between the lid 5 and the main body 1, the rope is stretched to open and turn the lid 5, and the rope 39 is rewound to close and turn the lid 5 by utilizing its gravity. The rope 39 is wound and rewound by a manual opening and closing means M.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filtering device, and more particularly to avoiding electric wiring or hydraulic piping to a place where the filtering device is installed, avoiding work or troubles associated with such wiring or piping, and removing a lid. When opening and closing manually, the gravitational force of the lid is effectively used to improve operability, and the opening of the lid is minimized when taking out and mounting the filter. The present invention relates to a technology for keeping the space small.

[0002]

2. Description of the Related Art Conventionally, a filtering device Aa is used as shown in FIG.
As shown in (b), a lid body 5 for opening and closing the container body 1 is provided on the upper part of the bottomed cylindrical container body 1, and the lid body 5 is opened and loaded into the container body 1. Filter 2
In the filtering device Aa which is taken out and loaded, the lid body 5 is lifted above the container body 1 by the driving force of the electric motor, and the lid body 5 is rotated about the support shaft S in the horizontal plane. By doing so, the lid 5 is retracted from above the container body 1, and the upper part of the container body 1 is widely opened, so that a large number of filters 2 ... Can be easily replaced. In the figure, 7 is a processing liquid introducing pipe, 8 is a connection port,
Reference numeral 10 is a treatment liquid outlet pipe.

[0003]

However, in such a structure, the lid 5 can be opened widely and the filters 2, ... Can be replaced easily, but an electric motor for opening and closing the lid 5 is provided. , The electric wiring to this, and the drive opening and closing configuration of the transmission gear, etc. are complicated and expensive, and moreover, electric wires need to be installed at the place where the filtration device is installed, which may cause troubles and maintenance. Inspection is required, and in particular, since the lid 5 is lifted and rotated in the horizontal plane, a space in plan view for horizontally rotating the lid 5 is required, and a large space for installing the filtering device Aa is required. there were. A structure has been proposed in which the lid 5 is rotatably supported by the container body 1 and is opened and closed by a hydraulic cylinder. However, in such a structure, hydraulic piping is required, and the hydraulic oil is used. There is also a problem in that wiring to the solenoid valve for controlling the valve is also required, the drive configuration is complicated and expensive, and troubles such as piping and wiring occur, which necessitates sufficient maintenance and inspection.

The present invention has been made in view of the above problems, and an object thereof is to avoid electric wiring or hydraulic piping to a place where a filtering device is installed, and to perform work associated with such wiring or piping. In order to avoid problems and troubles, and to open and close the lid manually, the weight of the lid is effectively used to improve operability, and the opening amount of the lid is minimized when taking out and mounting the filter. An object of the present invention is to provide a filtering device that can reduce the space in plan view when installing the filtering device.

[0005]

According to the present invention, a lid 5 for opening and closing the container body 1 is provided on the upper part of a bottomed cylindrical container body 1 so as to be openable and closable, and the lid body 5 is opened to open the container body 1. A filter device for taking out and loading the filters 2 ... Loaded inside the lid body 5, and the lid body 5 is vertically rotatable about a horizontal horizontal axis 4 in a part of the container body 1 in the circumferential direction. The tow line 39 such as a load chain is pivotally mounted on the cover body 5 and the container body 1 to wind and open the lid body 5 by winding the tow line 39. It is characterized in that it is provided with a manual opening / closing operation means M that is stretched so as to be closed and rotated by utilizing its own weight and that winds and pulls out the tow line 39.

Further, a plurality of filters 2 ... Are loaded in the container body 1 in the vertical direction, and the container body 1
It is characterized in that the treatment liquid introducing pipe 7 conducted inside is arranged vertically in the vicinity of the horizontal horizontal shaft 4 on which the lid 5 is pivotally mounted.

[0007]

By operating the handle of the manual opening / closing means M, the tow cable 39 such as a load chain is wound to open and rotate the lid 5, and the tow cable 39 such as the load chain is unwound to extend the lid 5. Is closed and rotated using its weight. In this way, the lid body 5 can be manually opened and closed and rotated, and no drive source such as an electric motor or a hydraulic motor is required. By simplifying the open / close configuration,
Avoiding troubles associated with wiring and piping, which is advantageous for filtration equipment such as industrial wastewater.

When the filter 2 is taken out and loaded, the lid 5 is fully opened, but the filter 2 does not exist at the base end portion where the lid 5 is pivotally supported. The pipe 7 is present, and thus the treatment liquid introducing pipe 7 is present at the base end portion of the lid body 5, and accordingly, the opening amount of the lid body 5 is suppressed to a small amount. Then, the amount of operation for opening the lid 5 against the weight of the lid 5 by manual operation is reduced. Moreover, since the filter 2 does not exist at the base end of the lid 5, the filter 2 can be easily taken out and loaded. Moreover, by keeping the fully opened amount of the lid 5 small, the space in plan view in the fully opened state can be kept small and the installation space can be kept small, as compared with the case where the lid 5 is largely opened upside down.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. A disc-shaped filter holder 13 is attached to the opening at the top of the bottomed cylindrical container body 1. A large number of suspension holes 14 ... Are formed in the filter holder 13. The bottomed cylindrical filter 2 is suspended and held in these suspension holes 14. The treatment liquid introducing pipe 7 is vertically risen and introduced into the container body 1 from the connection port 8 formed on the side thereof, and the upper end portion of the treatment liquid introducing pipe 7 is guided to the filter holder 13. Formed treatment liquid introduction hole 3
And is projected upward.

The container body 1 has a horizontal horizontal axis 4 and a lid 5
Is attached so that it can be opened and closed. The lid 5 is formed in a closed hollow shape from an upper plate 6 bent in a dome shape and a lower plate 17 having a flat plate shape. Then, the lower surface plate 17 of the lid 5 is brought into close contact with the outer peripheral portion of each filter 2 and the upper peripheral portion of the upper end of the treatment liquid introducing pipe 7 in a configuration as shown in FIG. A processing liquid supply port 16 is formed in the lower surface plate 1 facing the processing liquid introducing pipe 7.
Treatment liquid inlets 15 are formed at seven locations.

Then, the treatment liquid from the treatment liquid introduction pipe 7 passes through the treatment liquid introduction port 15 and enters the hollow portion X of the lid 5, and then enters the respective treatment filters 2 ... A filtering device A is configured in which the processing liquids supplied and filtered by the filter 2 merge at the lower portion of the container body 1 and flow out to the outside from the processing liquid outlet pipe 10 of the container body 1. The shape and form of the filter 2 can be changed in various ways.

As shown in FIG. 3, the hanging holes 14 of the filter holder 13 are replaced by the filter holder 1.
3. A part of the suspension holes 14 ... Which are arranged in a substantially concentric manner at an outer peripheral portion of the suspension member 3 in the circumferential direction with a space therebetween in the circumferential direction, and are further arranged with a space in the circumferential direction in this manner. In, the treatment liquid introducing hole 3 is formed. That is, the treatment liquid introduction hole 3
Are formed substantially concentrically on the outer peripheral portion of the filter holder 13 together with a large number of suspension holes 14. A suspending hole 14 is formed in the filter holder 13 at the center of the container body 1, and the filter 2 is also suspended and held in the suspending hole 14 at the center.

As described above, the processing liquid introducing pipe 7 is disposed at a part in the same circumferential direction as the hanging holes 14 which are circumferentially spaced from each other, and the processing liquid introducing pipe 7 is provided as in the conventional case. Since it does not interfere with the position where the filters 2 are arranged, it is possible to avoid creating a dead space in the container body 1, and rather to install the filter 2 in the center of the container body 1. To add more, add filter 2
In order to improve the filtering ability and maintain the filtering ability in the filtering device having the treatment liquid introducing pipe 7 in the central portion, the diameter of the container body 1 can be made small and compact, and the installation space can be reduced. Keep it small. Then, the diameter of the container body 1 is reduced in this way, and the filter 2
The amount of residual water remaining in the container body 1 can be suppressed to a small amount when exchanging ...

By the way, as shown in FIG. 5, the recessed stepped portion 1 is formed around the suspension hole 14 in the filter holder 13.
9 is formed. The filter 2 is placed in the recessed stepped portion 19.
The peripheral flange 2a is mounted. Then, an annular backup ring 20 having elasticity is placed on the flange 2a, and the upper peripheral surface of the backup ring 20 is pressed by the lower surface plate 17 of the lid body 5 and the lower surface plate 17 of the lid body 5 and the filter. A sufficient watertight state is maintained between the two and the treated water so as not to pass through the filter 2 and to escape to the bottom of the container body 1. The backup ring 20 is formed by annularly forming a stainless steel plate material having an L-shaped cross section, and elastically sealing a horizontal water piece 20a with an elastic watertight material 20b made of rubber or silicon resin. The configuration of the backup ring 20 can be modified in various ways. In the figure, reference numeral 55 denotes a lock, which locks the closed lid 5 to the container body 1 to maintain the closed state.

By the way, the lid 5 can be opened and closed manually, and its configuration will be described in detail below.
The design of the opening / closing configuration of the lid 5 can be changed in various ways. In FIG. 6 and FIG. 9, side plates 21, which are kept at a constant interval,
A load sheave 23 is rotatably held in the central portion of 22. Reference numeral 24 denotes a drive shaft integrally mounted on the load sheave 23. The drive shaft 24 has a right-hand screw 24a provided on a shaft portion protruding from one side plate 22. A driven member 25 is screwed into the drive shaft 24 near the side plate 22, and a drive member 26 having a switching gear 26 a is screwed into the drive shaft 24 away from the side plate 22.

A pressing member 27 is fitted to the boss portion 25a of the driven member 25 between the driven member 25 and the driving member 26. The pressing member 27 is a boss 27A on the driven member 25 side. The pawl gear 28 and the friction member 29 are mounted on the boss 27A on the drive member 26 side, and the friction member 20 is mounted on the boss 27A. As shown in FIG. 8C, the ratchet wheel 28 has three engaging recesses 28a formed at equal intervals in the radial direction on the inner peripheral surface of the mounting portion to the pressing member 27. On the other hand, on the outer peripheral surface of the boss portion 27A of the pressing member 27, reciprocating rotation in the rotation direction is allowed within the engaging recess 28a of the ratchet wheel 28.
Three engaging protrusions 27a having a slightly shorter circumferential length are formed [see FIGS. 8 (a) (c) (d)], and a constant depth is provided on the outer peripheral surface of the side surface in contact with the ratchet wheel 28. Annular notch 27b
Is provided. In the through hole of the pressing member 27 fitted to the driven member 25, a spring 31 for pressing the driving member 26 outward with respect to the driven member 25 is mounted. The drive shaft 24 is provided with a small-diameter screw portion 24b at the left end, and a washer 32 held by a nut 33 that is screwed into the small-diameter screw portion 24b is rotated in a loosening direction.
6 is prevented from falling off the drive shaft 24.

Reference numeral 34 denotes a shaft fixed to the lower part of the side plates 21 and 22. A ratchet pawl 36, which is pressed toward the ratchet wheel 28 by a spring 35, is attached to a portion of the shaft 34 projecting from the side plate 22. The cover wheel 2 when the lid 5 is opened and closed.
It prevents the reversal of 8. Further, a mounting base 38 on the side of the container body 1 is attached to the shaft 34 between the side plates 21 and 22 via a connecting fitting 37. Reference numeral 39 is a tow line such as a load chain wound around the load sheave 23, and a connecting fitting 40 is provided at the upper end of the tow line 39 such as the load chain. Arm 5 extended from lid 5 side
It is connected to the lid 5 via 6. Thus, the lid 5 can be opened and closed according to winding and unwinding of the tow line 39 such as a load chain.

The drive member 26 has a switching gear 26a portion housed in the operating lever 42. The operating lever 42 is composed of an inner lever case 43 and an outer lever case 44 which are separately formed. The inner lever case 43 has a circular shape including a circumferential surface 43a that slidably contacts the outer circumferential surface of the pressing member 27 and a locking surface 43b having a circular opening 43c that is locked by the annular notch 27b of the pressing member 27. The inner lever case 43 is formed with a protrusion.
Has its outer peripheral portion bent at a right angle in a direction opposite to the protruding side of the circumferential surface 43a. The outer lever case 44 is integrally connected to the inner lever case 43 by a plurality of screws 45 and nuts 46. The operation gripping portion 26b of the drive member 26 corresponds to the operation gripping portion 26b. 26
A circular opening 44a is provided for inserting b so that it does not contact.

A rotation direction switching pawl 48, which is held by a shaft 47 so as to be rotatable with respect to both lever cases 43 and 44, is accommodated in the operation lever 42 above the drive member 26. 49 is a spring 50 for connecting the upper end of the rotation direction switching pawl 48.
A pressing member that is urged downward by the pressing member 49.
Is a rotation direction switching claw 48 whose rotation is switched in a predetermined direction by a handle 51 attached to a shaft 47.
The switching gear 26a is constantly pressed. Also, the side plate 22
On the left side of the driven member 25, the friction member 29, the ratchet 2
8 and the brake cover 52 that covers the entire ratchet pawl 36 that engages with the ratchet wheel 28 contacts the inner lever case 43 by using a plurality of screws 53 and nuts 54 that keep the side plates 21 and 22 at constant intervals. It is installed not to.

Therefore, the bifurcated rotation direction switching claw 48 is formed.
When the load of the lid body 5 is applied in a state where the lid body 5 is locked by the switching gear 26a (when the lid body 5 is in the process of opening and closing), the load sheave 23 and the drive shaft 24 integrally attached to the load sheave 23.
Is slightly rotated clockwise as viewed from the right side of FIG. Since the screw portion 24a of the drive shaft 24 is right-threaded, when the drive shaft 24 is slightly rotated, the drive member 26 is prevented from rotating by the rotation direction switching pawl 48 that is screwed into the screw portion 24a. Moves toward the side plate 22, and presses the pressing member 27, the ratchet wheel 28, and the friction member 29 via the friction member 30.
Is applied to the surface of the driven member 25 whose position is fixed at the step portion of the drive shaft 24, and the braking force also acts on the surface of the driven member 25. Moreover, at this time, since the ratchet wheel 28 is prevented from rotating in the reverse direction by the ratchet pawl 36, the drive shaft 24 and the load sheave 23 do not rotate after a slight rotation, and the load of the lid body 5 is held as it is. It

When the operating lever 42 is operated in the clockwise direction in this state, the rotation direction switching claw 48 rotates the drive member 26 in the opening direction of the lid 5, so that the friction member 30, which is rotated integrally by the drive member 26, Pressing member 27, ratchet 2
8, the friction member 29, and the driven member 25 rotate the load sheave 23 in the opening direction of the lid 5 to open the lid 5 connected to the connecting fitting 40 by the operation amount of the operation lever 42. On the other hand, when the rotation direction switching claw 48 is engaged with the switching gear 26a in the opposite manner to the above, the drive member 26 is moved leftward in FIG. Since the pressing is stopped, the friction member 30, the pressing member 27, the friction member 29, and the driven member 2
5 is rotated in a direction of closing the lid 5 together with the drive shaft 24 by the lid 5 connected to the connecting fitting 40, and the drive member 26, which is prevented from being rotated by the rotation direction switching pawl 48, becomes the friction member 30. The lid body 5 rotates in the closing direction until it is pressed to stop the rotation of the drive shaft 24.

In other words, by reciprocating the operating lever 42,
Bifurcated rotation direction switching claw 48, spring 50, drive member 2
6. The selected one-way operation force is taken out through the one-way operation force take-out mechanism such as the switching claw wheel 26a, and the tow rope 39 such as a load chain is unwound to move the lid 5 around the horizontal axis 4. The same operation lever 42 is rotated by rotating and releasing the rotation direction, and by swinging the bifurcated rotation direction switching claw 48 to change the operation force extraction direction by switching the engagement direction with respect to the switching claw wheel 26a. In the reciprocating operation, the pulling rope 39 such as a load chain is rewound by utilizing the own weight of the lid body 5, and the lid body 5 is rotated downward. Therefore, the lid body 5 is manually opened and closed. It can be done.

In short, in reciprocating operation of the operating lever 42, by swinging switching of the bifurcated rotation direction switching claw 48,
Any mechanism that winds up or rewinds the tow line 39, such as a load chain, may be used. Such a structure for manually opening and closing the lid 5 is generically referred to as a manual opening / closing operation means M, and the structure can be variously changed in design. In such a case, the lid 5
In the fully opened state of, the lid 5 is opened and rotated,
It is stopped at about 88 ° before about 90 °, and in its open state, the lid body 5 is urged to rotate in the closing direction by its own weight, and the lid body 5 pulls like a load chain. By the unwinding action of the rope 39, the lid body 5 is closed by utilizing its own weight.

[0024]

As described above, according to the present invention, the lid body is pivotally attached to the container body so as to be vertically rotatable about a horizontal horizontal axis in a part of the circumferential direction, and between the lid body and the container body. , A tow line such as a load chain is opened and rotated to open the lid, and when the tow line is extended, the tow line is stretched so as to be closed and rotated by utilizing its own weight. Since there is provided a manual opening / closing operation means for winding and unwinding, the handle is operated in the manual opening / closing operation means to wind a tow line such as a load chain to open and rotate the lid body, and Such a tow line can be fed out and the lid body can be closed and rotated by utilizing its weight. The lid body can be manually opened / closed and rotated, and a drive source such as an electric motor or a hydraulic motor can be used. You can simplify the opening and closing configuration without needing
There is an advantage that troubles associated with wiring and piping can be avoided, which is advantageous in filtration equipment such as industrial wastewater.

Further, a plurality of filters are loaded in the container body in the vertical direction, and the processing liquid introducing pipe conducted in the container body is vertically mounted in the vicinity of the horizontal horizontal axis for pivotally mounting the lid. Since it is arranged, when the filter is taken out and loaded, the lid is fully opened, but there is no filter at the base end where the lid is pivotally supported.
There is a treatment liquid introduction pipe, and thus there is a treatment liquid introduction pipe at the base end portion of the lid body, so that the opening amount of the lid body can be suppressed to a small amount, and manual operation is possible. The amount of operation for opening the lid against the weight of the lid can be reduced, and since there is no filter at the base end of the lid, the filter can be easily taken out and loaded, and moreover,
Since the amount of full opening of the lid is kept small, there is an advantage that the space in plan view in the fully opened state can be kept small and the installation space can be kept small as compared with the case where the lid is opened in a large size in an inverted manner. is there.

[Brief description of drawings]

FIG. 1 is a partially cutaway schematic front sectional view of an embodiment of the present invention.

FIG. 2 is a plan view of the above.

FIG. 3 is a plan view of the above filter holder.

FIG. 4 is a bottom view of the above lid.

FIG. 5 is a cross-sectional view of a state in which the above filter is pressed by a lid.

FIG. 6 shows the above opening and closing device, (a) is a sectional view,
(B) is a partially exploded perspective view.

FIG. 7 is a front view of the above opening / closing device.

8A is a plan view of a pressing member, FIG. 8B is a vertical sectional view of the pressing member, FIG. 8C is a plan view of a ratchet wheel, and FIG. 8D is a cross-sectional view showing an operation of the ratchet wheel.

9A is a vertical sectional view of an inner lever case, FIG.
Is a front view.

FIG. 10 shows a conventional example, (a) is a schematic front view in which a part is broken, and (b) is a schematic plan view in which a lid is opened.

[Explanation of symbols]

 1 Container Main Body 2 Filter 4 Horizontal Horizontal Axis 5 Lid 39 Traction Line Like Load Chain M Manual Opening / Closing Operation Means

Claims (2)

[Claims] 1. A lid body for opening and closing the container body is provided on an upper portion of a bottomed cylindrical container body, and the lid body is opened to take out and load a filter loaded in the container body. In the filtering device, the lid is pivotally attached to the container body in a vertical direction about a horizontal horizontal axis in a part of the circumferential direction, and is pulled between the lid and the container body like a load chain. The rope is stretched to open and rotate the lid when it is wound, and the lid is stretched so as to be closed and rotated by using its own weight when the tow rope is paid out. A filtering device comprising an opening / closing operation means. 2. A plurality of filters are loaded in the container body in the vertical direction, and a processing liquid introducing pipe conducted in the container body is vertically mounted in the vicinity of a horizontal axis for pivotally attaching a lid. A filtering device characterized by being arranged.