JPH051285Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention provides a through hole and a notch in a part of the lid attached to the base frame of the overheater, so that the lid can be opened and closed easily. The present invention relates to a lid opening/closing device for a container that prevents the lid from accidentally falling off from the base frame.

[Conventional technology]

Conventionally, the means for opening and closing the lid of an overheating container is, for example, as shown in FIG. 6 which is bent and formed integrally and abuts on the flange 4 through a packing 5
Means for pressing the tip of a butterfly bolt 7 that passes through the center of the arm piece 8 on which the flange 4 is suspended and in contact with approximately the center of the arm piece 8, and tightening the arm piece 8 with a wing nut 9 that is screwed onto the butterfly bolt 7. is adopted. As another example, as shown in FIG. 4, a holder 13 is welded to the outer peripheral edge near one end (right end in this case) of a base frame 15 housing a main body 14 on which a net is stretched.
while fixing and protruding the lid 1 through the gasket q.
7 is fitted and tightly attached to the outer circumferential edge of one end of the base frame 15, and the root (here, the right end) of the U-shaped connecting piece 12, for example, allows the tip (here, the left end) to be loosely inserted into the holder 13. is fitted and fixed to the arm piece 11, the tip of the butterfly bolt 16 that passes through the approximate center of the arm piece 11 is pressed against the lid 17, and the arm piece 11 is tightened with the wing nut 18 that is screwed onto the butterfly bolt 16. We have adopted a method of wearing As another example, (2) a bolt is rotatably pivoted to a suitable position at one end of the base frame that houses the main body, and a screw rod with a rotating rod is inserted into a screw hole drilled at another suitable position on one end. A nut is screwed together with a screw engraved in the base frame, and the grooves into which the bolt and the screw rod are respectively inserted are brought into contact with the outer periphery of one end of the base frame, and the nut is tightened to each of the bolt and the screw rod. Some devices employ a method of tightening the lid. (For example, see Publication No. 50-4284) In Figures 3 and 4, d ₃ and d ₄ are discharge ports, i ₃ ,
i ₄ is the inlet.

[The problem that the idea aims to solve]

Even if there are some structural differences in the above-mentioned lid opening/closing means () and (), the arm piece 8 that fixes the lids 6, 17 to the base frames 3, 15, respectively, in both cases. , 11 are fixed at the center, which requires the desired strength, which increases production costs, and there is also a risk that the lids 6, 17 may fall off from the base frames 3, 15 when the wing nuts 9, 18 loosen due to impact, vibration, etc. However, since the lids 6 and 17 need to be fixed at the center as mentioned above, if the lids 6 and 17 are slightly
17 may be deformed and, in severe cases, may be damaged. On the other hand, in the case of (), as in () and (), when the rotating rod loosens due to shock, vibration, etc., the screw rod will no longer be able to maintain its tightened state against the base frame, and in severe cases, the lid may close. There is a concern that it may fall off the base frame.

This invention was proposed in consideration of the above-mentioned drawbacks, and its purpose is to provide a lid opening and closing device for a filter that allows the lid to be opened and closed more easily than before and prevents the lid from accidentally falling off the base frame.

[Means to solve the problem]

In order to achieve the above-mentioned object, the lid opening/closing device for the over-container according to this invention is provided with a space in each of a pair of holding pieces protruding from the outer peripheral edge of the base frame, and one end of the eye bolt is provided in each of these spaces. are movably connected, and the other side of these eye bolts is connected to each of the through holes and notches provided in each of a pair of bulging pieces that protrude from the outer periphery of the lid that abuts one end of the base frame for holding the base frame. The lid is inserted into the base frame with a loose fit, and is fastened to the base frame so as to be openable and closable by means of wing nuts that are threaded into each of the eye bolts in a non-separable manner.

〔Example〕

An embodiment of this invention will be described below with reference to FIGS. 1 and 2.

The main body 21 of the cylindrical vessel on which the net n is stretched,
It is stored and locked inside the base frame 22 in which the discharge port d and the inlet port i are provided, and is fixed to the outer peripheral edge of one side (the right side in FIG. 1) of the base frame 22 by welding or other means.
Hollow spaces a ₁ and a ₂ are provided in the pair of protruding holding pieces r ₁ and r ₂ , respectively.
are movably connected to the spaces a ₁ and a ₂ through through holes b ₁ and b ₂ bored at one end (the left end in FIG. 1) of the eye bolts 24 and 25, respectively; The bulging pieces e ₁ and e 2 are integrally projected at symmetrical positions above and below the outer peripheral edge of the lid ₂₃ that abuts the end portions of the base frame 22 on the side of the holding pieces r ₁ and r ₂ via the gasket P, and these bulging pieces The other side of the eye bolts 24 and 25 (the right side in Fig. 1) is inserted into the through hole h and the U-shaped notch V in each of the pieces e 1 and e ₂ , respectively, and _a screw is carved on the other side. The lid 23 can be opened and closed by tightening or loosening wing nuts 26 and 27 screwed together at portions S ₁ and S ₂ via plain washers W ₁ and W ₂ . In addition, the vicinity of the other ends of the threaded portions S ₁ and S ₂ of the eye bolts 24 and 25 are crushed, and the wing nuts 26 and 27 are
are screwed into each of the threaded portions S ₁ and S ₂ except for the vicinity of the other end, in a manner that prevents the wing nuts 26 and 27 from accidentally separating from the eye bolts 24 and 25. be.

[action, effect]

In this device, the fluid that flows into the main body 21 from the inlet i through the base frame 22 retains and retains dust, gravel, pebbles, pieces of cloth, and other impurities by the mesh n, and flows out from the outlet d. .

When maintaining, inspecting, cleaning, etc. the main body 21, after loosening the wing nut 27 and removing the threaded portion _S2 of the eye bolt 25 from the notch V, the lid 23 is moved around the eye bolt 24 as a fulcrum, as shown in FIG. When opening by rotating counterclockwise (clockwise is also possible),
(At this time, if you loosen the butterfly nut 27 a little,
The eye bolt 25 is detached from the bulging piece _e2 , making it easier to rotate the lid 23. ) The main body 21 can be easily taken out, and at this time, the eye bolts 24, 2
5 are movably connected at one end through the through holes b ₁ , b ₂ of the holding pieces r ₁ , r ₂ , so that even when the lid 23 is opened, the wing nuts 26 , 27 and the flat washers
There is no risk that W ₁ , W ₂ and the eye bolts 24 and 25 will come out, and the lid 23 is suspended upwardly by the eye bolt 24 through the through hole h of the bulging piece e ₁ . Therefore, the degree of freedom of the lid 23 relative to the base frame 22 is large, so even if the filter is installed in a narrow place, the lid 23 can be easily opened and closed, and it is also possible to avoid vibrations and
Due to impact etc., the wing nuts 26, 27 are damaged by the eye bolts 24,
25, there is no fear of it falling off even if it loosens, and
Even during long-term use, elasticity is gradually reduced by tightening the wing nuts 26 and 27 appropriately.
In addition to being able to prevent leakage caused by the lid, since the bolt tip is pressed and brought into contact with the approximate center of the lid, it is less likely to deform or damage the lid compared to conventional lid opening/closing means that had the risk of deforming or damaging the lid. It can be used safely without fear of damage, and there is no space on the outer periphery of the base frame 22.
While fixing the holding pieces r ₁ and r ₂ with a ₁ and a ₂ , the lid 23
Since it is only necessary to provide a through hole h and a notch V in each of the protruding pieces e ₁ and e ₂ that protrude from the outer periphery of the holder, the proposed product can be obtained by slightly modifying a part of the existing overlay. Therefore, it is possible to avoid a significant increase in repair costs, which is economical for the user, and the lid 23 can be easily opened and closed by any number of people, and the overall structure is not particularly complicated. Because there is no
It is robust, can be produced at low cost, and can be widely supplied to general consumers.

[Brief explanation of the drawing]

Figure 1 is a longitudinal sectional view of one embodiment of this invention;
The figure is a view of the lid taken along the - line in Figure 1;
The figure is a longitudinal cross-sectional view of a conventional type over-container, and FIG. 4 is a longitudinal cross-sectional view of another conventional type over-container. 21... Main body, 22... Base frame, 23... Lid, 2
4, 25...Eye bolt, 26, 27...Bend nut, a ₁ , a ₂ ...Empty space, e ₁ , e ₂ ...Bulging piece, h...
Through hole, r ₁ , r ₂ ... holding piece, V ... notch.

Claims (1)

[Scope of utility model registration request] A pair of holding pieces r ₁ protruding from the outer peripheral edge of the base frame 22,
Spaces a ₁ and a ₂ are provided in each of r ₂ , and these spaces a ₁ and a ₂
One end of the eye bolts 24, 25 is movably connected to each of the eye bolts 24, 25, and the other side of the eye bolts 24, 25 is connected to the outer peripheral edge of the lid 23 which abuts the ends of the base frame ₂₂ on the holding pieces r1, _r2 side. The pair of projecting bulging pieces e ₁ and e ₂ are inserted into the through holes h and notches V provided in each of them with play, and are screwed into the eye bolts 24 and 25 without being detachable. A lid opening/closing device for a filter in which the lid 23 is fastened to the base frame 22 with wing nuts 26 and 27 so as to be openable and closable.