JP2000255682A - Tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a tank capable of being reliably sealed without causing the deformation of a sealed part due to a clamping force and reliably preventing rainwater, etc., from flowing into the sealed part. SOLUTION: A tank having a manhole lid and capable of storing a liquid, etc., is constructed by adapting such a manhole lid 14 as to be composed of a manhole lid main body 20, a sealed part 21 whose height is different from that of an outer circumference of the manhole lid main body 20 and which covers an upper part of a neck ring 8 formed unitarily with the manhole lid main body 20 so as to project outward, a cross-sectionally channel-like clamping part formed unitarily with the sealed part 21 so as to project outwardly of an outer circumference of the sealed part 21, and a plurality of insertion grooves for clamping tools, which are formed at the clamping part at predetermined intervals.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tank capable of storing a high-viscosity liquid and a low-viscosity liquid.

[0002]

2. Description of the Related Art Conventionally, the manhole cover of this type of tank has a channel-shaped cross section projecting outward on an outer peripheral portion of a manhole cover main body so as to cover an upper portion of a neck ring in which an O-ring is housed. Thus, a plurality of tightening portions are formed on the outer peripheral portion at predetermined intervals and also serve as seals.

[0003]

Since the conventional manhole cover of the tank has a channel-shaped sealing portion also serving as a seal on the outer peripheral portion of the manhole cover main body, a plurality of such sealing / tightening portions are provided. When tightening with a fastener, the tightening force is directly transmitted to the seal part, which causes deformation and leakage of the seal. In addition, rainwater, etc., flows into the seal part and also serves as the seal part. However, there is a drawback that the fluid flows into the O-ring portion, which is a seal portion, from the fastener insertion groove formed in the outer peripheral portion and enters the tank.

The present invention has been made in view of the above-mentioned conventional drawbacks,
It is an object of the present invention to provide a tank that can reliably perform sealing without deformation of a seal portion due to a tightening force and that can reliably prevent rainwater or the like from flowing into the seal portion.

The above and other objects and novel features of the present invention will become more completely apparent when the following description is read in conjunction with the accompanying drawings. However, the drawings are for explanation only, and do not limit the technical scope of the present invention.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a tank body capable of storing a liquid or the like, and an O-ring mounted on an upper portion fixed to a periphery of an upper opening of the tank body. A neck ring formed with a storage recess,
The upper part of the neck ring accommodated in the O-ring accommodating concave part is rotated by the O-ring located above the upper surface of the neck ring and the man ring cover support member fixed to the neck ring or the upper part of the tank body. A manhole cover having a plurality of fastener insertion grooves formed at predetermined intervals in an outer peripheral portion, the manhole cover being capable of sealing the opening of the neck ring pivotally supported, and a plurality of fastening holes of the manhole cover; A neck ring or a tank comprising a plurality of fasteners attached to the tank, each of which is inserted into a fixture insertion groove and capable of fastening the manhole cover, wherein the manhole cover is a manhole cover body; A seal portion that has a step with the outer peripheral portion of the lid body and covers an upper portion of the neck ring integrally formed so as to protrude outward; A tank is formed by a channel-shaped tightening portion integrally formed so as to protrude outwardly of the outer peripheral portion, and a plurality of fastener inserting grooves formed at predetermined intervals in the tightening portion. I have.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings.

In the first embodiment of the present invention shown in FIGS. 1 to 8, reference numeral 1 denotes a tank of the present invention which can be loaded and unloaded by a forklift.
This tank 1 has a rectangular frame-shaped pallet 2 formed so that a fork of a forklift can be inserted therein, and an opening / closing valve 4 at a lower portion fixed to leg members 3, 3, 3, 3 fixed to four corners of the pallet 2. A tank body 9 having a neck ring 8 having an upper opening 6 formed with an O-ring storage recess 7 at an upper portion thereof, and a tank body 9 having an upper ring housed in the O-ring storage recess 7 are provided. An O-ring 10 protruding above the upper part of the neck ring 8, a manhole cover support member 11 fixed to an outer peripheral wall 8a of the neck ring 8 by welding or the like,
A plurality of, in the embodiment of the present invention, six fastener fixing pieces 1 fixed by welding or the like to the outer peripheral wall 8a at predetermined intervals.
2, 12, 12, 12, 12, 12, a manhole cover 14 that is rotatably attached to the manhole cover support member 11 by a pivot pin 13 and covers the opening of the neck ring 8; Tool support pieces 12, 12, 12, 1
Pivot pins 15, 15, 15, 15, 1 on 2, 12, 12
Eyebolt 1 rotatably mounted by 5 and 15
6, 16, 16, 16, 16, 16, this eyebolt 1
A fastener 18, 18, 18, 18, 18, 18, 18 comprising eye nuts 17, 17, 17, 17, 17, 17, screwed to 6, 16, 16, 16, 16, 16, and the tank body 9 for stacking fixed to the upper corner of 9
9, 19, 19 and 19.

As shown in FIGS. 4 to 7, the manhole cover 14 has an arc-shaped manhole cover body 20 whose central portion projects slightly upward, and has a step with the outer peripheral portion of the manhole cover body 20. A sealing portion 2 for covering an upper portion of the neck ring 8 integrally formed so as to protrude outward;
1, a fastening portion 22 having a channel-shaped cross section integrally formed so as to protrude outward from an outer peripheral portion of the sealing portion 21, and the fastening portion which does not warp the sealing portion 21 during welding. A support member 23 pivotally supported by a pivot pin 13 on the manhole cover support member 11 fixed by welding or the like to an outer portion excluding an inner portion of the fastener 22;
2, 12, 12, 12, 12, 12, U-shaped fastener insertion grooves 24, 2 formed in the fastening part 22 which do not deform the seal part 21 during processing.
4, 24, 24, 24, 24.

In the tank 1 having the above structure, when the opening of the neck ring 8 of the tank body 9 is sealed, the neck ring 8
In order to tighten the O-ring 10 supported by the pressing part 22 formed on the outer peripheral part of the pressure seal part 21 in a channel shape in cross section with the fasteners 18, 18, 18, 18, 18, 18,
Since the tightening force of the fasteners 18, 18, 18, 18, 18, 18, 18 is received by the structurally strengthened channel-shaped tightening portion 22, it is difficult to be deformed, and deformation occurs. The transmission to the seal portion 21 is also prevented by the side wall 22a on the seal portion 21 side having a channel-like cross section.

Also, rainwater or the like flows into the fastening portion 22 and is discharged below the fastening tool insertion grooves 24, 24, 24, 24, 24, 24. The fastening portion 22 is formed in a channel shape in cross section. Therefore, it is possible to prevent intrusion in the sealing direction by the side wall 22a on the seal portion 21 side.

[0012]

Next, different embodiments of the present invention shown in FIGS. 9 to 14 will be described. In addition,
In the description of the different embodiments of the present invention, the same components as those of the first embodiment of the present invention are denoted by the same reference numerals, and duplicate description will be omitted.

The second embodiment of the present invention shown in FIGS. 9 to 11 is different from the first embodiment of the present invention mainly in that a tank body 9 is fixed to a pallet 2 by a supporting frame. In that the tank 1A is configured as described above, the tank 1A configured as described above can achieve the same operation and effect as those of the first embodiment of the present invention.

The third embodiment of the present invention shown in FIGS. 12 to 14 is mainly different from the first embodiment of the present invention in that a manhole cover supporting member 11 and a fastener supporting piece 12 are provided. , 12, 12, 12, 12, 12 are fixed to the tank main body 9 on the outer peripheral portion of the neck ring 8 by welding or the like. Therefore, even in the tank 1B having such a configuration, the first embodiment of the present invention is described. The same operation and effect as in the embodiment can be obtained.

[0015]

As is clear from the above description, the following effects can be obtained in the present invention.

(1) A tank body capable of storing a liquid or the like, a neck ring having an O-ring storage recess formed in an upper portion fixed to a peripheral edge of an upper opening of the tank body, and a neck ring of the neck ring. The upper part accommodated in the O-ring accommodating recess is located above the upper surface of the neck ring.
A ring and an opening of the neck ring rotatably supported by the neck ring or a man-made lid supporting member fixed to the upper part of the tank body can be sealed, and are formed at predetermined intervals on an outer peripheral portion. A manhole cover having a plurality of fastener insertion grooves formed therein, and a manhole cover which is inserted into each of the plurality of fastener insertion grooves of the manhole cover and is attached to the neck ring or the tank which can tighten the manhole cover. A tank comprising a plurality of fasteners, wherein the manhole cover is a manhole cover body, and the neck ring has a step with the outer peripheral portion of the manhole cover body and is integrally formed so as to protrude outward. A sealing portion for covering the upper portion, a clamping portion having a channel-shaped cross section integrally formed so as to protrude outward from an outer peripheral portion of the sealing portion, and a predetermined interval between the clamping portion Since it is configured in the formed plurality of fasteners insertion groove can receive a tightening force of fasteners in fastening are formed in cross-section channel-shaped portion. Therefore, since a tightening force is received at a portion where structural strength is obtained, deformation of the portion is prevented, and it is possible to reliably prevent a problem that deformation is transmitted to the seal portion and leakage of the seal occurs.

(2) According to the above (1), since the fastener insertion groove is formed on the outer peripheral portion of the channel-shaped fastener, rainwater or the like flowing into the fastener is removed from the fastener insert groove. While being discharged to the lower part, it can be reliably prevented from flowing in the direction of the seal part by the wall surface of the fastening part on the seal part side. Therefore, it is possible to reliably prevent rainwater or the like from entering the tank.

(3) According to the above (1), a step is formed on the outer peripheral portion of the manhole cover body to form a seal portion, and a channel-shaped tightening portion is formed on the outer peripheral portion of the seal portion. The strength is enhanced by the bent portion formed in the shape of a channel or a channel, and sufficient strength is obtained.

(4) According to the second aspect, the same effects as in the above (1) to (3) can be obtained, and since the manhole cover main body is formed in an arc shape whose central portion protrudes upward, sufficient pressure resistance can be obtained. Can be In addition, the support member is welded to the tightening part where the seal part is not easily distorted during welding, and the fastener insertion groove is formed in the tightening part that does not deform the seal part during processing, so the seal part ensures Can be sealed.

[Brief description of the drawings]

FIG. 1 is a front view of a first embodiment of the present invention.

FIG. 2 is a plan view of the first embodiment of the present invention.

FIG. 3 is a side view of the first embodiment of the present invention.

FIG. 4 is a sectional view taken along line 4-4 in FIG. 2;

FIG. 5 is an explanatory diagram of a neck link portion according to the first embodiment of the present invention.

FIG. 6 is a sectional view of the manhole cover according to the first embodiment of the present invention.

FIG. 7 is a plan view of the manhole cover according to the first embodiment of the present invention.

FIG. 8 is an enlarged sectional view of a main part of FIG. 2;

FIG. 9 is a front view of a second embodiment of the present invention.

FIG. 10 is a plan view of a second embodiment of the present invention.

FIG. 11 is a sectional view taken along the line 11-11 in FIG. 10;

FIG. 12 is a front view of a third embodiment of the present invention.

FIG. 13 is a plan view of a third embodiment of the present invention.

FIG. 14 is an explanatory diagram of a neck ring portion according to a third embodiment of the present invention.

[Explanation of symbols]

1, 1A, 1B: tank, 2: pallet, 3: leg member,
4: open / close valve, 5: discharge pipe,
6: Opening, 7: O-ring storage recess, 8: Neck ring, 9: Tank body, 10: O-ring, 1
1: manhole cover support member, 12: fastener support piece,
13: pivot pin, 14: manhole cover, 15: pivot pin, 16: eye bolt, 17: eye nut, 1
8: fastening tool, 19: support base, 20: manhole cover body, 21: seal portion, 22: fastening portion,
23: Support member, 24: Fastener insertion groove, 25: Support frame.

Claims (2)

[Claims] 1. A tank body capable of storing a liquid or the like, a neck ring having an O-ring storage recess formed in an upper portion fixed to a peripheral edge of an upper opening of the tank body, and an O-ring of the neck ring. The upper part accommodated in the ring accommodating recess is rotatably supported by an O-ring located above the upper surface of the neck ring and a man-home lid support member fixed to the neck ring or the upper part of the tank body. A manhole cover having a plurality of fastener insertion grooves formed at predetermined intervals in an outer peripheral portion capable of sealing an opening of the neck ring; and a plurality of fastener insertion grooves of the manhole cover. A tank comprising a plurality of fasteners attached to the neck ring or the tank, the neck ring being capable of being inserted and capable of fastening the manhole cover; A lid having a manhole cover main body, a seal portion covering an upper portion of the neck ring integrally formed so as to protrude outward, having a step with an outer peripheral portion of the manhole cover main body, and an outer peripheral portion of the seal portion. A tank comprising: a clamping portion having a channel-like cross-section integrally formed so as to protrude toward the side; and a plurality of fastener insertion grooves formed at predetermined intervals in the clamping portion. 2. A tank body capable of storing a liquid or the like, a neck ring having an O-ring storage recess formed in an upper portion fixed to a peripheral edge of an upper opening of the tank body, and an O-ring of the neck ring. The upper part accommodated in the ring accommodating recess is rotatably supported by an O-ring located above the upper surface of the neck ring and a man-home lid support member fixed to the neck ring or the upper part of the tank body. A manhole cover having a plurality of fastener insertion grooves formed at predetermined intervals on an outer peripheral portion capable of sealing an opening of the neck ring, and a plurality of fastener insertion grooves of the manhole cover. A tank comprising a plurality of fasteners attached to the neck ring or the tank, each of which can be inserted to fasten the manhole cover; A manhole cover main body formed in an arc shape with a central portion protruding upward at the center, and an upper portion of the neck ring integrally formed so as to have a step with the outer peripheral portion of the manhole cover main body and protrude outward. A seal part,
A channel-shaped fastening portion integrally formed so as to protrude outward from an outer peripheral portion of the seal portion, a plurality of fastening tool insertion grooves formed at predetermined intervals in the fastening portion; A tank comprising a support member rotatably attached to the manhole cover support member fixed to the attachment portion by welding.