CN2563193Y

CN2563193Y - Safety lock, self protection hinge safety anti-theft manhole cover

Info

Publication number: CN2563193Y
Application number: CN 02247647
Authority: CN
Inventors: 宋耀增
Original assignee: Yanshan University
Current assignee: Yanshan University
Priority date: 2002-08-10
Filing date: 2002-08-10
Publication date: 2003-07-30
Anticipated expiration: 2012-08-10

Abstract

The utility model relates to the water supply and drainage technical field, in particular to a manhole cover for a water supply and drainage, heat and sewage well. The utility model is characterized in that: a self protection hinge (5) is connected with a bolt (21) and a nut (22) of the manhole cover to form a hinge connection, the self protection hinge (5) is also connected with a well base (6) through a bolt (20), a safety lock (2) is arranged opposite to the self protection hinge (5), and the safety lock (2) is connected with the manhole cover (1) through a bolt (12) and a nut (13) at a heightened position on a manhole cover costal plate. In a close status, the two ends of a lock core (8) both have extension parts, among which one part is used for locking the well base (6) and the other part is hinged with a multi-way safety lock linking (3). A shifting fork (9) is arranged on one side face of the lock for closing and opening the lock, and a safety device (25) is arranged on the other side face of the lock for locking the lock core (8).

Description

Safety lock, self-shield hinge safe theft-proof well cover

The utility model relate to a kind ofly give, the water discharge technology field, particularly a kind of water up and down, heating installation, and the well lid of sink hole.

At present, the well lid of water, heating installation and sink hole mostly is well lid and the partial installation of well seat up and down, and small part is used the well lid that has hinge and unidirectional lock.The well lid of partial installation, well lid separates easily with the well seat, so well lid is stolen easily, and water, sink hole do not have well lid for a long time about making, and perhaps well lid plays pendulum, and so just causes casualties easily and property loss.The well lid that is using at present with hinge and lock since the part that hinge is connected with well lid some is built on stilts, therefore, hinge ruptures easily under the effect of heavy-duty vehicle, but also might be stolen, in case this class well lid hinge is destroyed, lock is inefficacy just.

The object of the present invention is to provide a kind of safety lock, self-shield hinge safe theft-proof well cover, this safe theft-proof well cover neither is subjected to the influence of vehicle to be not easy to suffer artificial destruction again, has not advantage such as cracky of safe, antitheft, well lid.

This safety lock, self-shield hinge safe theft-proof well cover, the casting ears or side handles of a utensil are arranged below round manhole cover 1, cast out through hole on the ears or side handles of a utensil, it is characterized in that: self-shield hinge 5 and well lid 1 usefulness bolt 21, nut 22 is connected into hinged, self-shield hinge 5 connects with well seat 6 usefulness screws 20, installation insurance lock 2 on the relative position of self-shield hinge 5, safety lock 2 and well lid 1 usefulness bolt 12, nut 13 is connected adding on the high-order bit of well lid floor, lock core 8 all has sponson in two ends under the situation of pinning, wherein a part is pinned well lid 1, another part and multidirectional safety lock connecting rod 3 form hinged, there is a shift fork 9 side of lock, the opening and closing that are used to lock, the opposite side of lock have an insurance 25, are used to pin lock core 8; Cast out a boss in well lid 1 lower central position, produce a screwed hole on the boss, be connected into multidirectional lock interlock controlling organization 4 hinged with screw 17; Installing connecting rods latch 19 on multidirectional lock interlock control panel 15, link spigot pin 19 and 8 interlocks of safety lock lock core are finished opening and closing simultaneously, also can be only with a safety lock 2 without link spigot pin 19; On well lid, the both sides of lock respectively cast out a keyhole, on well seat 6 and well lid 1 contacted surface one deck beam 7 are arranged, and are used to alleviate the well lid that produces owing to the vehicle effect and the impact load between the well seat, prevent that well lid from breaking.

Drawings and Examples:

Fig. 1 is the front view of safety lock, self-shield hinge safe theft-proof well cover

Fig. 2 is the vertical view of safety lock, self-shield hinge safe theft-proof well cover

Fig. 3 is the partial enlarged drawing of safety lock, self-shield hinge safe theft-proof well cover and lock

Fig. 4 is the vertical view after part such as safety lock amplifies

Fig. 5 is the enlarged drawing of multidirectional lock link gear

Accompanying drawing

1,2,3,4,5 is disclosed to be an embodiment of the present utility model (seeing Fig. 1,2,3,4,5); wherein 1 is well lid, and 2 is safety lock, and 3 is multidirectional safety lock connecting rod; 4 is multidirectional lock interlock controlling organization; 5 are the self-shield hinge, and 6 is the well seat, and 7 is beam; 8 is the safety lock lock core; 9 is shift fork, and 15 is multidirectional lock interlock control panel, and 19 is the connecting rod bolt.24 is spring, and 25 are insurance.

Open well lid, at first open insurance 25 with special tool, stir shift fork 9 with special tool then, shift fork 9 drives safety lock lock core 8 and moves, safety lock lock core 8 promotes multidirectional lock connecting rod 3, and this connecting rod is passed to other multidirectional lock connecting rod bolts by multidirectional lock interlock control panel 15 with motion, up to opening safety lock, all simultaneously multidirectional safety lock connecting rod bolts are opened, and just can open well lid this moment.

Close and pin well lid 1, earlier well lid 1 is set level, stir a certain position that shift fork 9 makes safety lock lock core 8 fill-in well seat bottoms with special tool again, insure 25 simultaneously and pin lock core 8 automatically under the effect of spring 24, other connecting rod bolt also is in closed condition.

Characteristics of the present utility model:

1, safe antitheft is because this well lid has multidirectional or two to fixing, and well lid is in external force Effect is lower can not to break away from the well seat; Because use safety lock, no specific purpose tool can not be opened well Lid is again because self protection hinge and well lid and well seat consist of triangle, at self protection hinge one The side well lid of not opening. Just in case well lid is opened, owing to have self protection hinge with well lid and well Seat connects and also to be difficult for stolenly, will make like this well lid and well seat be in stable state, well lid and The well seat more can not break away from, and certainly can avoid accident occurring and reaches the purpose of using safe antitheft.

2, well lid not cracky do not have sponson, and between well lid and well seat, beam be installed because well lid be a circle, alleviated the impact load of well lid and well seat under the effect of vehicle, thereby reduced the breakage rate of well lid.

3, economy the utility model increases a spot of finding on original well lid, and processing technology is simple, and cost of production is low; For making manufacturing cost cheaper, can be only with a safety lock, and need not multidirectionally lock, so have excellent economy.

4, opening angle university degree well lid is opened the back flip angle and can be equal to or greater than 180 degree, makes the personnel of underground work work more convenient, safer.

5, the hinge between well lid and the well seat dangles under the well lid closing state below well lid naturally, is not subjected to the effect of other external force; When well lid is opened, only also be difficult for hinge is laid down with spanner.Therefore hinge has self-protection function.

The utlity model has advantages of high practicability, safety, economy and bigger economic and social benefit.The producer of original production well lid need not increase plant and equipment, just can organize and produce this safe theft-proof well cover.

Claims

1. a safety lock, self-shield hinge safe theft-proof well cover, below round manhole cover (1), the ears or side handles of a utensil are arranged, cast out through hole on the ears or side handles of a utensil, it is characterized in that: self-shield hinge (5) is connected into hinged with well lid with bolt (21), nut (22), be connected in installation insurance lock (2) on the position relative with self-shield hinge (5) with well seat (6) with screw (20), safety lock (2) is connected in adding on the high-order bit of well lid floor with well lid (1) with bolt (12), nut (13); All there is sponson at lock core (8) two ends under closing state, wherein a part is pinned well lid (6), another part and multidirectional safety lock connecting rod (3) form hinged, there is a shift fork (9) side of lock, the opening and closing that are used to lock, the opposite side of lock has an insurance (25), is used to pin lock core (8).

2. safety lock according to claim 1, self-shield hinge safe theft-proof well cover; it is characterized in that: at boss of the lower central position of well lid (1) casting; screwed hole of processing is connected into multidirectional lock interlock controlling organization (4) hinged with screw (17) on the boss.

3. safety lock according to claim 1, self-shield hinge safe theft-proof well cover is characterized in that: go up at multidirectional lock interlock control panel (15) the link rod latch is installed, link spigot pin (19) and safety lock lock core (8) interlock are finished opening and closing.

4. safety lock according to claim 1, self-shield hinge safe theft-proof well cover is characterized in that: respectively cast out a keyhole in the both sides that well lid (1) is locked, on well seat (6) and the contacted surface of well lid (1) one deck beam (7) is arranged.

5. safety lock according to claim 1, self-shield hinge safe theft-proof well cover is characterized in that: also can be only with a safety lock (2) without link spigot pin (19).