CN202418555U

CN202418555U - Manhole door

Info

Publication number: CN202418555U
Application number: CN2011205228340U
Authority: CN
Inventors: 夏纯洁; 莫建松; 程常杰
Original assignee: Zhejiang Tianlan Environmental Protection Technology Co Ltd
Current assignee: Zhejiang Tianlan Environmental Protection Technology Co Ltd
Priority date: 2011-12-14
Filing date: 2011-12-14
Publication date: 2012-09-05
Anticipated expiration: 2021-12-14

Abstract

The utility model discloses a manhole door, and belongs to the field of overhauling of tower tank equipment. The manhole door comprises a cover plate, a barrel and a rotary arm, wherein a supporting lug is arranged on one side of the barrel; a sleeve is fixed on the supporting lug; and the lower part of the rotary arm is inserted into the sleeve and is in rotating fit with the sleeve, the upper end of the rotary arm is bent towards the cover plate to form an extension arm, and the end of the extension arm is connected with the cover plate through a hanging piece. When the cover plate is opened, the cover plate is taken down without manpower, and the cover plate can be flexibly and easily opened and closed by means of the rotary arm and the hanging piece through one person, so that manpower and labor intensity are reduced; and the cover plate is connected with the rotary arm only through the hanging piece, so the manhole door is convenient to detach.

Description

A kind of manhole door

Technical field

The utility model relates to tower jar overhaul of the equipments field, is specifically related to a kind of manhole door.

Background technique

Manhole is the free translation of English Manhole, and the mouth that be used on the container (tower, jar, reaction kettle, stove etc.) to install, overhaul, inspection etc. makes things convenient for personnel to pass in and out is manhole.

Manhole door is meant on the shell of container and is used for an opening that the maintainer enters to overhaul, dismountable, mainly contains circle, square, rectangular, ellipse etc., is example with the circle, passes in and out conveniently for making things convenient for personnel, and general internal diameter is not less than 600mm; Need if any the equipment turnover, should make manhole door according to equipment size.

Notification number is that the utility model patent of CN201971344U discloses a kind of metal bucket manhole door, comprises the fixedly pivoted arm of door closure of a door closure and, and said door closure and pivoted arm can rotate with respect to metal bucket; Pivoted arm comprises fixed wall and cantilever arm, and fixed wall and metal bucket articulate, and the end of cantilever arm is connected with door closure through the screw rod of a band hook; Door closure one side is fixed on the fixed wall, and this device is movably connected in door closure on the metal bucket through pivoted arm, need door closure not taken down when opening; Easy to use, but also come with some shortcomings, and its door closure is fixed on the fixed arm; Need fixed arm be pulled down simultaneously during dismounting, more time-consuming and not too convenient.

The model utility content

The utility model provides a kind of manhole door, need not to rely on manpower that cover plate is opened, and manpower and labor intensity have been saved in cover plate folding flexibly.

A kind of manhole door; Comprise cover plate, cylindrical shell and pivoted arm, said cylindrical shell one side is provided with journal stirrup, is fixed with sleeve on the said journal stirrup; Said pivoted arm bottom is inserted in the sleeve and is rotatably assorted with sleeve, top forms cantilever arm to cover plate one lateral buckling, and the end of said cantilever arm is connected with cover plate through suspender member.

Described suspender member comprises that fixing suspension ring on the cover board are connected suspension ring, upper end and are connected with cantilever arm and suspension hook free to rotate with the lower end; Preferably, described suspension hook top is provided with thread section and is arranged with nut.Suspension hook is adjustable at axial direction, because the action of gravity of cover plate, after the time was long, cover plate can be toward descending, and this moment can be through regulating the position of suspension hook aligning cover plate in the axial direction; More preferably, described cantilever arm end is provided with the connecting plate that is connected with the suspension hook upper end, fixes with nut after connecting plate is passed in the suspension hook upper end, makes suspension hook more convenient with being connected of pivoted arm, if any damage, and the connecting plate that only need more renew.

Preferably, described pivoted arm bending place is provided with stiffening rib, guarantees that pivoted arm is stressed indeformable.

The beneficial effect of the utility model:

When opening cover plate; Need not to rely on manpower that cover plate is taken off; Dependence pivoted arm and suspender member can be with the flexible foldings of cover plate, and a people gets final product easy manipulation, has saved manpower and labor intensity; Compare traditional cover plate and remove and mounting type, the manhole door dismounting that the utility model provides total consuming time be equivalent to conventional method consuming time 30～50%; Just be connected between cover plate and the pivoted arm through suspender member, more convenient during dismounting.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is that A shown in Figure 1 is to view;

Fig. 3 is that B shown in Figure 1 is to view;

Fig. 4 is the structural representation of suspension hook shown in Figure 1.

Embodiment

Like Fig. 1, Fig. 2, shown in Figure 3, a kind of manhole door comprises cover plate 1, pivoted arm 5 and cylindrical shell 9, and cylindrical shell 9 is connection parts of manhole door and tower jar; Generally be welded on the tapping of tower jar, cylindrical shell 9 is a face of weld with the tank connected side of tower, when the tower jar is square; The face of weld of cylindrical shell 9 is a flat face, and when the tower jar was circular, the face of weld of cylindrical shell 9 was a cambered surface; The perforate of applying tower jar, in the present embodiment, the face of weld of cylindrical shell 9 is a cambered surface; The material of cylindrical shell 9 is selected for use identical with the tower jar and is laid the similar face coating, and material thickness tower jar is identical, and internal diameter is 800mm;

The diameter of cover plate 1 is 1000mm, connects through flange 10 between cover plate 1 and the cylindrical shell 9, and flange 10 is welded on the cylindrical shell 9; Material and coating are identical with cylindrical shell 9, and material thickness is 10mm, and internal diameter is 800mm; External diameter is 1000mm, and cover plate 1 has bolt hole with flange 10 peripheries, and the pressure in the quantity of bolt hole is irritated according to tower is set; Cover plate 1 is fixing with flange 10 usefulness bolts 3, is provided with rubber washer between flange 10 and the cover plate 1, and cover plate 1 is provided with two grip 2;

Cylindrical shell 9 left sides are provided with two journal stirrups 7, sleeve 6 of welding on the journal stirrup 7, and the internal diameter of sleeve 6 is 76mm; Highly be 350mm, insert in the sleeve 6 pivoted arm 5 bottoms, can in sleeve 6, freely rotate; Pivoted arm 5 adopts tube material to make, and caliber is 60mm, and top is 90 ° of bendings to cover plate 1 one sides and becomes one section cantilever arm; Be welded with stiffening rib 8 in curved, the cantilever arm end is connected through suspender member 4 with cover plate 1 top, and suspender member 4 comprises the connecting plate 44 that is fixed on the cantilever arm end, be fixed on suspension ring 41, upper end on the cover plate 1 passes the fixedly suspension hook 42 that is connected with suspension ring 41 of lower end of connecting plate 44 usefulness nuts 43; The structure of suspension hook 42 is as shown in Figure 4, and the upper end is the screw mandrel shape, and the lower end is the hook solid that cooperates with suspension ring 41; Suspension hook 42 is free to rotate, in the adjustable height of axial direction, after cover plate 1 descends because of action of gravity; The height that can regulate on suspension hooks 42 axial directions through the nut 43 of regulating suspension hook 42 upper ends, thereby the position of correcting cover plate 1.

The method for using of the utility model is following:

When needs are opened manhole door, at first guarantee to be in shut down condition and emptying interior media in Ta Nei or the jar, decontrol all bolts 3; Hold handle 2 and open cover plate 1, take off rubber washer, cover plate 1 is suspended on the connecting plate 44 of cantilever arm end through suspender member 4; The suspension hook 42 of suspender member 4 can freely rotate on connecting plate 44 through nut 43; Pivoted arm 5 is free to rotate equally in sleeve 6, and cover plate 1 is opened to the next door, the maintainer pass that flange 10 gets in the towers or jar in operation; Maintenance finishes, and assembling is in order tightened all bolts 3 and got final product again.

Claims

1. manhole door; Comprise cover plate (1), cylindrical shell (9) and pivoted arm (5); It is characterized in that said cylindrical shell (9) one sides are provided with journal stirrup (7), are fixed with sleeve (6) on the said journal stirrup (7); Said pivoted arm (5) bottom is inserted in the sleeve (6) and is rotatably assorted with sleeve (6), top forms cantilever arm to cover plate (1) one lateral buckling, and the end of said cantilever arm is connected with cover plate (1) through suspender member (4).

2. manhole door according to claim 1 is characterized in that, described suspender member (4) comprises that the suspension ring (41) that are fixed on the cover plate (1) are connected with the lower end that suspension ring (41), upper end are connected with cantilever arm and suspension hook (42) free to rotate.

3. manhole door according to claim 2 is characterized in that, described suspension hook (42) top is provided with thread section and is arranged with nut (43).

4. manhole door according to claim 3 is characterized in that, described cantilever arm end is provided with the connecting plate (44) that is connected with suspension hook (42) upper end.

5. manhole door according to claim 1 is characterized in that, described pivoted arm (5) bending place is provided with stiffening rib (8).