JPH0340327Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial field of application) This invention relates to a filter cloth hanger for a filter press.

(Prior art) As a filter cloth hanging device for a filter press, a filter cloth hanging rod is made of a hollow circular pipe, and the filter cloth is hung in the center of the rod.Bolts are hung from above through the bolt holes at both ends of the rod, and the filter cloth is hung from above. Insert the rod in the same direction as above, and sandwich the above filter cloth hanging rod between the upper and lower nuts screwed into this bolt, set the height of the filter cloth hanging rod with the upper nut, and tighten the lower nut to remove the above filter. A device in which a cloth hanging rod is fixed is known.

(Problem to be solved by the invention) However, since conventional bolt holes were independently drilled in a circular shape at the end of the filter cloth hanging rod, it was difficult to remove the filter cloth hanging rod when replacing the filter cloth, etc. for,
Loosen the lower nut and remove it from the lower end of the bolt.
Furthermore, it is necessary to remove the filter cloth hanging rod from the lower end of this bolt, and conversely, in order to install the filter cloth hanging rod, it is necessary to operate in the reverse order of the above, and one filter press has many rods. Since there are filter cloth hanging rods, attaching and detaching the filter cloth hanging rods is very troublesome and requires a long time.

This idea allows the filter cloth hanging rod to be removed from the bolt by slightly loosening one of the two vertically opposing nuts, eliminating the need to remove the nut and filter cloth hanging rod from the bolt as in the case of conventional filters. The present invention provides a filter cloth hanger for a press.

(Means for Solving the Problems) In order to solve the above problems, in this invention, slits are formed at both ends of the filter cloth hanging rod in succession to the bolt holes facing each other vertically, and each bolt hole is is opened at the end face of the filter cloth hanging rod through this slit.

In a first aspect of the invention, the bolt is formed to have an oval cross section, and the bolt hole is bored in a circular shape into which the bolt can be inserted.
The width of the slit is narrower than the large diameter portion of the bolt and is set to a size that allows the small diameter portion to slide.

Further, in the second aspect, the bolt is formed in the shape of a round bar with a predetermined diameter, and at least one of the vertically opposing nuts is a nut with a protrusion having a small diameter protrusion on the side that contacts the filter cloth hanging rod. , one bolt hole corresponding to this nut with a protrusion is drilled in a circular shape into which the small-diameter protrusion can be inserted, and the other bolt hole is bored in a circular shape into which a bolt can be inserted, and both bolts are connected to each other. The width of the slit is set to a size that allows the bolt to slide.

Further, in a third aspect, the bolt has a large-diameter upper part and a small-diameter lower part, and the bolt hole in the upper part of the filter cloth hanging rod has a diameter that allows insertion of the large-diameter upper part of the bolt, and the bolt in the lower part Holes are drilled at each diameter that allows insertion of the small diameter lower part of the bolt,
Slits continuous with both of these bolt holes are set to a size that allows the small diameter lower part of the bolt to slide.

(Function) In the first aspect, one of the upper and lower nuts,
For example, if you loosen the lower nut a little and turn the bolt 90 degrees, aligning the small diameter direction of the oval-shaped cross section with the width direction of the slit, you can slide the bolt outward in the width direction of the filter cloth hanging rod along the slit. It can be removed by When installing, perform the operations in the opposite order as above.

In the second embodiment, one of the upper and lower nuts is loosened to allow the small-diameter protrusion of the nut with a protrusion to escape from the bolt hole, and then the bolt is removed by sliding it laterally along the slit. When installing, perform the operations in the reverse order.

In a third embodiment, the lower end of the large-diameter upper portion of the bolt is released from the bolt hole by loosening the lower nut, and then the bolt is removed by sliding it along the slit. When installing, perform the operations in the reverse order.

(Example) FIGS. 1 to 3 show Example 1. A large number of adjacent filter plates 1 are connected by links 2, 2 pinned to their sides, and a bolt 5 is suspended from a connecting portion 3 of the links 2, 2 via a coil spring 4. There is. This bolt 5
As shown in Fig. 3, this is a round bolt with both sides flattened to have an oval cross section, with a hexagonal nut 6 at the top and a chivalry nut 7 at the bottom.
are screwed into each. A filter cloth hanging rod 8 is attached to the bolt 5 mentioned above and on which the filter cloth F is hung.
has a bolt hole 8a and a slit 8b at each end, the diameter of the bolt hole 8a is slightly larger than the large diameter part of the bolt 5, and the slit 8b
The width of the bolt 5 is set to be slightly larger than the small diameter portion of the bolt 5. In this embodiment, even if the lower post-nut 7 is loosened by a small amount in the state shown in FIG. 2, the bolt 5 will not immediately come off through the slit 8b. The filter cloth hanging rod 8 and the bolt 5 can be easily separated by sliding the filter cloth hanging rod 8 into and out of the filter cloth hanging rod 8, and only a small amount of rotation of the nut 7 is required when attaching and detaching the filter cloth hanging rod 8.

Embodiment 2 is shown in FIGS. 4 to 6. In this second embodiment, a rotating shaft 11 is supported above the row of filter plates 1, and a pulley 12 fixed to this rotating shaft 11
One end of a wire 13 is wound and fixed to the wire 13, and a round bar-shaped bolt 14 is suspended from the other end.A nut 15 with a protrusion is attached to the upper part of this bolt 14, and a chivalry nut 16 is attached to the lower part of the bolt 14. As shown in FIG. 5, the nut 15 with a protrusion has a conical small-diameter protrusion 15b at the lower part of the hexagonal head 15a. On the other hand, the filter cloth hanging rod 17
Upper and lower bolt holes 17a, 17b passing through the ends of
The middle and upper bolt holes 17a are connected to the small diameter protrusion 15b.
The lower bolt hole 17b is formed in a size that allows the bolt 14 to fit thereinto, and the bolt holes 17a, 17b are formed in a size that allows the bolt 14 to fit into the lower bolt hole 17b.
The upper and lower slits 17c and 17d that are continuous with each other are formed in a size that allows the bolt 14 to slide therein. In this embodiment, the lower post nut 16 is inserted into the upper bolt hole 1 of the small diameter protrusion 15b of the nut with protrusion 15.
By loosening the bolt 14 by an amount corresponding to the insertion depth into the bolt hole 17a and allowing the small diameter protrusion 15b to escape above the bolt hole 17a, the bolt 14 is inserted into the slit 17c.
17d, and attach the bolt 14 and filter cloth hanging rod 1.
7 are separated from each other.

FIG. 7 shows a modification of the nut 15 with a protrusion. It is used in almost the same way as the bolt nut 15.

FIG. 8 and FIG. 9 show Example 3. In this third embodiment, a support 22 is installed on the shoulder of the filter plate 21.
An arm 23 is provided at the upper end thereof to protrude laterally, and a bolt 25 is suspended from the tip of the arm 23 via a coil spring 24. This bolt 25 consists of a large-diameter upper part 25a and a small-diameter lower part 25b, and a hexagonal nut 26 is screwed into the large-diameter upper part 25a, and a hexagonal nut 27 is screwed into the small-diameter lower part 25b, respectively. On the other hand, the upper bolt hole 28a at the end of the filter cloth hanging rod 28 is formed in a size that allows the large diameter upper part 25a to fit into it, and the lower bolt hole 28b is formed in a size that allows the small diameter lower part 25b to fit into it. The slits 27c and 27d are both formed to have a width that allows the small diameter lower portion 25b to slide.
In this embodiment, the lower chisel nut 27 is inserted into the upper bolt hole 28a of the large-diameter upper portion 25a of the bolt 25.
By loosening the large diameter upper part 25a by an amount corresponding to the insertion depth into the upper bolt hole 28a, the small diameter lower part 25b of the bolt 25 is slid into the slits 28c and 28d, and the bolt 25 is loosened by an amount corresponding to the insertion depth.
and the filter cloth hanging rod 28 are separated.

In the above embodiment, the bolt 5 of embodiment 1,
The filter cloth hanging rod 8 is attached to the filter plate 1 of Examples 2 and 3, the bolt 14 of Example 2 and the filter cloth hanging rod 17 are attached to the filter plate 1 of Examples 1 and 3, and the bolt 25 of Example 3 is attached to the filter plate 1 of Examples 2 and 3.
The filter cloth hanging rod 28 can be used for the filter plate 1 of Examples 1 and 2, respectively.

(Effect of the invention) This invention involves slightly loosening one of the upper and lower nuts of the bolt inserted into the end of the filter cloth hanging rod, and allowing the bolt to slide along the slit at the end of the filter cloth hanging rod. Separate the filter cloth hanging rod from the bolt,
Since the bolt is attached to the filter cloth hanging rod by the reverse operation, when attaching or removing the filter cloth hanging rod, remove the lower nut from the bolt as in the conventional method, and remove this bolt from the filter cloth hanging rod. There is no need for the troublesome effort of removing the filter cloth, the filter cloth hanging rod can be easily attached and detached from the bolt compared to the filter cloth hanging tool of a conventional filter press, and the working time is shortened.
Further, since the lower nut is not removed, there is no need to lose the removed nut as in the conventional case. Furthermore, the number of nuts attached to one bolt is two, as in the conventional case, and there is an advantage that the number of parts does not increase.

[Brief explanation of the drawing]

Fig. 1 is a side view of the first embodiment, Fig. 2 is an enlarged sectional view of the main part of Fig. 1, Fig. 3 is a sectional view taken along the - line in Fig. 2, and Fig. 4 is a side view of the second embodiment. , FIG. 5 is an enlarged sectional view of the main part of FIG. 4, and FIG. 6 is an enlarged sectional view of the main part of FIG. 5.
7 is a front view showing a modification of FIG. 5, FIG. 8 is a side view of Embodiment 3, and FIG. 9 is an enlarged sectional view of the main part of FIG. 8. 5, 14, 25... bolt, 6, 7, 15, 1
6, 26, 27...Natsuto, 8, 17, 28...
Filter cloth hanging rod, 8a, 17a, 17b, 28a, 2
8b...Bolt hole, 8b, 17c, 17d, 28
c, 28d...slit, F...filter cloth.

Claims (1)

[Scope of Claim for Utility Model Registration] [1] A filter cloth hanging rod consisting of a hollow circular pipe with a filter cloth hung in its center, through which bolts suspended from above are inserted vertically into the bolt holes at both ends. In the filter cloth hanging device of the filter press, in which the filter cloth hanging rod is tightened and fixed between the vertically opposing nuts screwed into the bolts, the vertically opposing bolt holes of the filter cloth hanging rod are fixed. Both are opened at the end face of the filter cloth hanging rod through slits, the bolts are formed with an oval cross section, the bolt holes are bored circularly into which bolts with an oval cross section can be inserted, and A filter cloth hanger for a filter press, characterized in that the width of the slit is narrower than the large diameter portion of the bolt and is set to a size that allows the small diameter portion to slide. [2] Insert bolts suspended from above vertically into the bolt holes at both ends of the filter cloth hanging rod, which is made of a hollow circular pipe and has a filter cloth hung in its center. In a filter cloth hanger for a filter press, in which the filter cloth hanging rod is tightened and fixed between nuts facing each other in a height-adjustable manner, the vertically opposing bolt holes of the filter cloth hanging rod are both connected to the filter cloth through slits. The bolt is formed into a round bar shape with a predetermined diameter, and at least one of the vertically opposing nuts has a protrusion that has a small diameter protrusion on the side that is in contact with the filter cloth suspension rod. One bolt hole corresponding to this nut with a protrusion is drilled in a circular shape into which the small-diameter protrusion can be inserted, and the other bolt hole is bored in a circular shape into which a bolt can be inserted. A filter cloth hanger for a filter press, characterized in that the width of a slit continuous with a hole is set to a size that allows a bolt to slide. [3] Insert bolts suspended from above vertically into the bolt holes at both ends of the filter cloth hanging rod, which is made of a hollow circular pipe and has a filter cloth hung in its center. In a filter cloth hanger for a filter press, in which the filter cloth hanging rod is tightened and fixed between nuts facing each other in a height-adjustable manner, the vertically opposing bolt holes of the filter cloth hanging rod are both connected to the filter cloth through slits. The bolt hole in the upper part of the filter cloth hanging rod has an opening in the end face of the hanging rod, and the bolt hole in the upper part of the filter cloth hanging rod has a diameter that allows insertion of the larger diameter part of the bolt, and the bolt hole in the lower part has an opening in the end face of the hanging rod. Holes are drilled at each diameter that allows insertion of the small diameter lower part of the bolt,
A filter cloth hanger for a filter press, characterized in that slits continuous with both of these bolt holes are set to a size that allows them to slide under the small diameter of each bolt.