JPH0190848U

JPH0190848U -

Info

Publication number: JPH0190848U
Application number: JP18203487U
Authority: JP
Priority date: 1987-11-30
Filing date: 1987-11-30
Publication date: 1989-06-14
Anticipated expiration: 2002-11-30
Also published as: JPH0538136Y2

Description

[Brief explanation of drawings]

図面は本考案の一実施例に係るマンホール蓋の
施錠装置を示し、第１図は蓋施錠状態の要部縦断
面図であり、第２図は同施錠状態の要部水平断面
図であり、第３図は該施錠装置の左側面図である
。第４図は該施錠装置に用いるキーハンドルの正
面図、第５図は該キーハンドルの底面図である。
第６図は該キーハンドル挿入時の要部拡大縦断面
図である。１…受枠体、２…蓋、３…ケース、４…水平枢
軸、５…フツク体、６…内面突部、７…内側アー
ム、８…受動突子、９…スライド板、１０…操作
カム部、１１…上面ガイド板、１２…立上り部、
１３…固着用ビス、１４…ロータ、１５…軸孔、
１６…透孔、１７…軸受部、１８…栓用ビス、１
９…鍵孔、２０…周面突起、２１…受動壁部、２
２…カム突起、２２ａ…カム突起の先端面、２３
…カム斜面部、２４…ストツパー部、２５…受孔
、２６…受溝、２７…キーハンドル、２８…割溝
、２９…枢軸、３０…爪板、３１…押ピン、３２
…摘み、３３…開口部、３４…フツク体用ストツ
パー部、３５…下面ボス部、３６…付勢用バネ、
３７…プロテキター板部、３８…下面ボス部、３
９…横溝、４０…ボルト、４１…ナツト、４２…
取付耳部。 The drawings show a manhole cover locking device according to an embodiment of the present invention, FIG. 1 is a longitudinal sectional view of the main part in the lid locked state, and FIG. 2 is a horizontal sectional view of the main part in the same locked state, FIG. 3 is a left side view of the locking device. FIG. 4 is a front view of the key handle used in the locking device, and FIG. 5 is a bottom view of the key handle.
FIG. 6 is an enlarged vertical sectional view of the main part when the key handle is inserted. 1... Receiving frame body, 2... Lid, 3... Case, 4... Horizontal pivot, 5... Hook body, 6... Inner surface protrusion, 7... Inner arm, 8... Passive protrusion, 9... Slide plate, 10... Operation cam part. , 11...Top guide plate, 12...Rising portion,
13...Fixing screw, 14...Rotor, 15...Shaft hole,
16...Through hole, 17...Bearing part, 18...Plug screw, 1
9...Keyhole, 20...Peripheral projection, 21...Passive wall portion, 2
2...Cam protrusion, 22a...Top surface of cam protrusion, 23
...Cam slope part, 24...Stopper part, 25...Receiving hole, 26...Receiving groove, 27...Key handle, 28...Split groove, 29...Pivot, 30...Claw plate, 31...Push pin, 32
...knob, 33...opening, 34...stopper part for hook body, 35...bottom boss part, 36...biasing spring,
37...Protector plate part, 38...Bottom boss part, 3
9...Horizontal groove, 40...Bolt, 41...Nut, 42...
Mounting ears.

Claims

[Scope of utility model registration request]

A hook body 5 is pivotally mounted on the lower surface of the periphery of the lid 2 by a horizontal pivot 4 and engages and disengages with the inner surface protrusion 6 of the receiving frame body 1; a rotor 14 protruding from the lid 2; a slide plate 9 attached to the lower surface of the lid 2 and biased to slide in the direction of the hook body 5 by a spring 36; The cam protrusion 22
a cam slope portion 23 that is pushed by; an operation cam surface portion 10 formed on the outer end of the slide plate 9 to be inclined in the vertical direction; and an operation cam surface portion 10 provided at the tip of the inner arm 7 of the hook body 5; a passive protrusion 8 that comes into contact with the portion 10 ; a key handle 2 that is inserted into the rotor 14 through the keyhole 19 of the lid 2 and drives the rotor 14 to rotate;
7, the manhole cover locking device is configured to abut the tip end surface 22a of the cam protrusion 22 against the cam slope 22 when the hook body 5 is detached from the inner surface protrusion 6.