CN2846339Y

CN2846339Y - Clamp type quick open manhole

Info

Publication number: CN2846339Y
Application number: CN 200520021633
Authority: CN
Inventors: 刘星海; 徐晓娟; 许庆红; 杨磊
Original assignee: 刘星海
Priority date: 2005-09-14
Filing date: 2005-09-14
Publication date: 2006-12-13
Anticipated expiration: 2015-09-14

Abstract

The utility model discloses a clamping type quickly opened manhole. The utility model is composed of a flange, a short pipe, a fixing clamping seat, a moving upper clamping cover and a support frame, wherein a force augmentation rod seat and a jaw are welded on the moving upper clamping cover, an oblique angle of one to five degrees is formed between the jaw and the horizontal plane of the moving upper clamping cover, an I-shaped clamping groove is arranged on the locking surface of the fixing clamping seat, an annular groove is arranged on the sealing surface of the fixing clamping seat, one end of the support frame is connected with the fixing clamping seat through a hinge, the other end of the support frame is connected with the moving upper clamping cover through a ball hinge, the upper end of the short pipe and the fixing clamping seat are welded together, and the lower end of the short pipe and the flange are welded together. The utility model uses the jaw to realize the frictional rotation and locking between the jaw and the clamping groove, and a sealing ring is arranged between the moving upper clamping cover and the fixing clamping seat. The manhole of the utility model, which is used in low pressure containers, has the advantages of good safety and sealing property, no requirements of disassembled or tightly screwed screw bolts, and flexible and reliable openness and closeness. The utility model solves the problems of the original flanges, which refer to that the disassembly costs time and trouble, and the labor intensity of an operator is large. The utility model also has the advantage of increased work efficiency.

Description

The cassette quick opening manhole

Technical field:

The utility model relates to a kind of cassette quick opening manhole.

Background technology:

In chemical industry, medicine, food common equipment such as still, jar, maintenance, cleaning equipment all are provided with manhole for convenience.During maintenance, open flange, service personnel enters from here and carries out work in still or the tank body.Conventional manhole on these equipment is made of short tube, blank flange, packing seal and tie bolt, short tube one end and tank body welding, other end bolt together blank flange.These manholes are often opened, and when opening or closing, need tear open, twist tens bolt with flanges, also will move the blank flange of tens kilogram weights, promptly time-consuming effort again, and labor intensity of operating personnel is big.

Summary of the invention:

The purpose of this utility model is to design a kind of cassette quick opening manhole at the problems referred to above.

The utility model purpose is to be achieved by following technical proposals: the cassette quick opening manhole by Ka Gai in flange, short tube, Fixing clamp-seat, the activity, be configured to, Ka Gai is shaped on claw, afterburning pole socket in the activity, and claw is 1-5 ° oblique angle with the movable horizontal surface of going up Ka Gai; Have on the locking face of Fixing clamp-seat " [" type draw-in groove, the quantity of draw-in groove is identical with the quantity of claw, has circular groove on the Fixing clamp-seat sealing surface; Support one end links to each other with Fixing clamp-seat by hinge, and the other end is connected with the movable Ka Gai that goes up by the ball hinge, the upper end of short tube and Fixing clamp-seat welding, lower end and flange welding.

The utility model is applicable to the manhole of low pressure (being no more than 0.8Mpa) container.

The utlity model has following advantage and good effect:

1, the utility model utilizes claw and draw-in groove friction rotational lock, and is equipped with seal ring between Ka Gai in the activity and Fixing clamp-seat, safety, good airproof performance.

2, the utility model does not need dismounting or tights a bolt, and opens, closes flexibly, reliable, has reduced labor strength, has improved work efficiency.

Description of drawings:

Fig. 1 is an integral structure cutaway view of the present utility model:

Fig. 2 is the birds-eye view of Fig. 1;

Fig. 3 be among Fig. 2 A to view;

Fig. 4 is the structure cutaway view of Ka Gai in the utility model activity;

Fig. 5 is the birds-eye view of Fig. 4;

Fig. 6 be among Fig. 5 B to topology view;

Fig. 7 is the structure cutaway view of the utility model Fixing clamp-seat;

Fig. 8 is the birds-eye view of Fig. 7;

Fig. 9 is the structural representation of the utility model support.

1 flange, 2 short tubes, 3 Fixing clamp-seats, 4 afterburning pole sockets, 5 movable Ka Gai, 6 ball hinges, 7 supports, 8 seal rings, 9 hinges, 10 claws gone up.

The specific embodiment: the utility model is described in further detail below in conjunction with accompanying drawing:

Fig. 1 provides integral structure cutaway view of the present utility model, Fig. 2 provides the birds-eye view of Fig. 1, cassette quick opening manhole among the figure by card in flange 1, short tube 2, Fixing clamp-seat 3, afterburning pole socket 4, the activity cover 5, support 7 constitutes, support 7 one ends link to each other with Fixing clamp-seat 3 by hinge 9, the other end covers 5 by ball hinge 6 with movable upward card and is connected, short tube 2 upper ends and Fixing clamp-seat 3 welding, lower end and flange 1 welding.Fig. 3 is that A provides the structural representation of afterburning pole socket 4 to view among Fig. 2 among the figure.The structure cutaway view of Ka Gai in the activity of Fig. 4 the utility model, Fig. 5 is the birds-eye view of Fig. 4, card covers 5 and is shaped on claw 10, afterburning pole socket 4 in the activity among the figure, the design quantity of claw 10 is 6 in the present embodiment, claw 10 covers 5 horizontal surface and is 1-5 ° oblique angle with the movable card of going up, the best angle at oblique angle is 2-3 °, consults Fig. 6.The structure of afterburning pole socket 4 is consulted Fig. 3, when opening or closing, press rods need be inserted to block on afterburning pole socket 4 rotary moveables and cover 5.Fig. 7 is the structure cutaway view of the utility model Fixing clamp-seat, and Fig. 8 has on the locking face of the Fixing clamp-seat 3 among the birds-eye view figure of Fig. 7 that " [" type draw-in groove, the draw-in groove quantity in the present embodiment is 6.Have circular groove on the sealing surface of Fixing clamp-seat 3, seal ring 8 is housed in the circular groove.

Fig. 9 is the structural representation of the utility model support, and the two ends of support 7 have the mutually perpendicular hole of axis, and an end links to each other with Fixing clamp-seat 3 by hinge 9, and the borehole jack of the other end is blocking and covers 5 and be connected on the ball stud of ball hinge 6 with in the activity.

When closing, claw 10 is aimed at the draw-in groove breach, with boosting-rod with card in the activity cover 5 rotate to an angle by the locking direction after, claw 10 is promptly by the precession draw-in groove, by pressure seal ring 8 down, card cover 5 and seals with Fixing clamp-seat 3 and to lock in the realization activity.During unlatching,, just claw 10 can be deviate from the draw-in groove of Fixing clamp-seat 3, by support 7 card in the activity be covered 5 and remove as long as card covers 5 to certain angle in the contrarotation activity.Cover 5 because support 7 connects and supporting the movable card of going up, open or when closing manhole, block in the activity and cover 5 and can not come off.

Claims

1, a kind of cassette quick opening manhole, it is characterized in that: it is made of Ka Gai (5), support (7) in flange (1), short tube (2), Fixing clamp-seat (3), the activity, Ka Gai in the activity (5) is welded with afterburning pole socket (4), claw (10), and claw (10) is 1-5 ° oblique angle with the movable horizontal surface of going up Ka Gai (5); Have on the locking face on the Fixing clamp-seat (3) " [" type draw-in groove, the quantity of draw-in groove is identical with the quantity of claw, has circular groove on the sealing surface of Fixing clamp-seat (3); Support (7) one ends link to each other with Fixing clamp-seat (3) by hinge (9), and the other end is connected with the movable Ka Gai (5) that goes up by ball hinge (6), the upper end of short tube (2) and Fixing clamp-seat (3) welding, lower end and flange (1) welding.

2, cassette quick opening manhole according to claim 1 is characterized in that: claw (10) is 2-3 ° with the movable oblique angle of going up the horizontal surface of Ka Gai (5)

3, cassette quick opening manhole according to claim 1 is characterized in that: seal ring (8) is housed in the circular groove on the sealing surface of Fixing clamp-seat (3).