JPS6226457U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本考案の実施例を示すもので、第１図は
使用状態を示す一部欠載した断面図、第２図は旋
錠装置の取付状態を示す一部破断した正面図、第
３図は同平面図、第４図は基体の縦断面図、第５
図は一部破断した筒体の正面図、第６図は作動ボ
ルトと底板を固着した断面図、第７図は下部筒の
正面図、第８図は第７図Ａ―Ａ線断面図、第９図
は係止片の平面図、第１０図は第１図Ｂ―Ｂ線断
面図、第１１図はマンフオール全体の平面図、第
１２図は第２実施例の要部断面図、第１３図は従
来例を示す要部断面図である。 １……旋錠装置、２……基体、１０……筒体、
１１ａ，１１ｂ……ねじ溝、１２……下部筒、１
３……案内溝、１５……凹入部、１６……作動ボ
ルト、１８……逆ねじ部、１９……収容室、２０
……凹部、２１……底板、２６……係止片、３０
……フツク、３２……受枠、３３……係止部、３
４……フツク受部、３５……蓋体。 The drawings show an embodiment of the present invention; FIG. 1 is a partially cutaway sectional view showing the state in use, FIG. 2 is a partially cutaway front view showing the locking device installed, and FIG. The same plan view, FIG. 4 is a longitudinal sectional view of the base, and FIG.
The figure is a partially broken front view of the cylinder, Figure 6 is a cross-sectional view of the operating bolt and bottom plate fixed together, Figure 7 is a front view of the lower cylinder, Figure 8 is a cross-sectional view taken along the line A--A in Figure 7, 9 is a plan view of the locking piece, FIG. 10 is a sectional view taken along the line B--B in FIG. 1, FIG. 11 is a plan view of the entire manhole, and FIG. FIG. 13 is a sectional view of a main part showing a conventional example. 1... Locking device, 2... Base body, 10... Cylindrical body,
11a, 11b...Thread groove, 12...Lower cylinder, 1
3... Guide groove, 15... Recessed part, 16... Operating bolt, 18... Reverse threaded part, 19... Accommodation chamber, 20
... recess, 21 ... bottom plate, 26 ... locking piece, 30
... Hook, 32 ... Receiving frame, 33 ... Locking part, 3
4...Hook receiving part, 35...Lid body.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 中心を通る直線上に位置させてフツク受部と係
止部とをそれぞれ内面に設けた受枠に、着脱可能
に被蓋させる蓋体に通孔を設け、この蓋体の裏面
の一方に前記フツク受部に掛止するフツクを設け
ると共に、前記通孔に合致させて蓋体の裏面に取
付ける基体の上下にはそれぞれ筒体と下部筒とを
直線状に固着し、この下部筒の壁面には周方向に
略１／４円周の細巾に設けた案内溝の左端に一段
低く形成した凹入部を前記係止部に対向させて設
け、上記筒体及び下部筒内に回動可能に挿通した
作動ボルトの頭部にはボルト回動用の凹部を有し
、且つ該ボルトの回動を防止するシリンダー錠を
収容する収容室を設け、また、下部外周に設けた
逆ねじ部に前記係止片固定用のリングを挿通させ
ると共に後端を回動可能に螺合させた係止片の先
端を前記案内溝から外方に突出し、この作動ボル
トの下端には前記下部筒の下面に当接する底板を
固着し、前記収容室内にボルト頭部と係脱可能に
係合してボルト回動防止用のシリンダー錠を収容
し、且つ上記筒体にキヤツプを螺着させて成るマ
ンフオール蓋の旋錠装置。 A receiving frame is positioned on a straight line passing through the center and has a hook receiving part and a locking part on its inner surface, and a through hole is provided in a lid body that is removably covered, and the hook is attached to one side of the back side of this lid body. In addition to providing a hook to be hooked to the receiving part, a cylinder body and a lower cylinder are fixed in a straight line to the upper and lower parts of the base body, which is attached to the back surface of the lid body in alignment with the through hole, and the wall surface of this lower cylinder is fixed. A recessed part formed one step lower at the left end of a guide groove with a narrow width of approximately 1/4 circumference in the circumferential direction is provided opposite to the locking part, and is rotatably inserted into the cylinder and the lower cylinder. The head of the operating bolt has a recess for bolt rotation, and is provided with a housing chamber for accommodating a cylinder lock that prevents rotation of the bolt, and the locking is provided in a reverse threaded portion provided on the outer periphery of the lower part. The tip of the locking piece, which has a ring for fixing the piece inserted therethrough and whose rear end is rotatably screwed together, protrudes outward from the guide groove, and the lower end of the operating bolt contacts the lower surface of the lower cylinder. A locking device for a manhole lid, comprising a bottom plate fixed, a cylinder lock for preventing bolt rotation by removably engaging with a bolt head in the housing chamber, and a cap screwed onto the cylinder body. .