CN2841770Y

CN2841770Y - Public manhole cover anti-theft device

Info

Publication number: CN2841770Y
Application number: CN 200520108708
Authority: CN
Inventors: 高静宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-06-06
Filing date: 2005-06-06
Publication date: 2006-11-29
Anticipated expiration: 2015-06-06

Abstract

The utility model relates to an anti-theft device for a public well cover. A built-in lock device which is composed of a lock hook, a lock core, a bracket, a supporting plate, a built-in pin, a built-in pin hole, a spring, etc. and can be opened and closed is installed on the lower surface of a well cover. A fixing hook is installed on the other side of the well cover which is not corresponding to the built-in lock device. A mechanical anti-theft device under a well is composed of the built-in lock device and the fixing hook. The opening of the mechanical anti-theft device is realized by a well opening device which is composed of a screw, a screw pole head, a sleeve, a supporting handle and a lock rod. The opening and the closing of the well cover can be realized by a special well opening device which is made by a mechanical device. The well cover can not be opened by people's hands or other simple tools.

Description

A kind of anti-theft device for public manhole cover

Technical field

The utility model relates to a kind of anti-theft device for public manhole cover.

Background technology

Well lid is seen everywhere as the communal facility on a kind of ground and the road, and public manhole cover usually is in unserviced state at night, public manhole cover has just become the target that some thiefs are paid close attention to like this, they are the well lid on burglarize ground and road often, and the consequence that their this larceny is brought to society is extremely harmful.Because losing of well lid, bring huge injury for sometimes pedestrian and vehicle, sometimes even the injures and deaths that can direct member and the damage of vehicle, and the public manhole cover that municipal sector can not will spread all on urban district and the road is kept an eye on fully, but in case cause the infringement of personnel or vehicle, the victim will lodge a complaint the administrative department of public manhole cover, and such thing is too numerous to enumerate, and is very helpless to this to the owner of this phenomenon municipal sector or well lid.

Behavior for the theft well lid that prevents the lawless person, many measures have been taked, as use nonmetallic material to make well lid, but the well lid that nonmetals are made, all unsatisfactory at aspects such as outward appearance, bearing capacity and prices, this well lid can not be popularized and come, also have and on well lid, take all anti-theft measures, still this can not stop the lawless person that well lid is opened as install iron chain additional to well lid, steals after with the powerful tools that can buy everywhere on the market iron chain being cut off again; The anti-stealing manhole cover that has adopts well lid to link to each other with hinge with the well seat and forms one, and this measure molecule that can't avoid theft is opened well lid, and they steal that well lid do not succeed may be to the assistant of the facility in the well, and this anti-theft measure has only been protected well lid; Certainly also have many antitheft measures, but the generation of larceny is not stopped in these measures, this illustrates that existing anti-theft measure is still waiting to improve.If use simple and mechanical a kind of anti-theft device for public manhole cover of making, this anti-theft device can only use by the simple and mechanical special machine tool of making and just can open, and thief does not have special-purpose machine tool can't open well lid.Have only the anti-theft measure that allows thief can't open well lid, be only the effective measures that prevent that well lid is stolen, be only the measure that guarantees that facility is not destroyed in pedestrian and vehicle safety and the well.

Summary of the invention

The purpose of this utility model just provides uses simple and mechanical a kind of anti-theft device for public manhole cover of making, and its molecule that can avoid theft is effectively opened well lid and steal, thereby has guaranteed that facility is not destroyed in the safety of pedestrian and vehicle and the well.

The purpose of this utility model is achieved in that in a side of well lid opens a well lid lockhole, the well lid lockhole that (refers to the one side of well lid in well) below well lid is other install one group by support, lock core, latch hook, undercut, supporting plate, dowel and parts such as dowel hole, spring form can opening and closing the built-in lock device, at well lid and the corresponding opposite side of built-in lock device a stay hook is installed, is formed the mechanical safety device of down-hole by built-in lock device and stay hook.This device is to constitute like this, and circular groove and support fixing hole on well lid lockhole side has below well lid have stay hook with the corresponding opposite side of well lid lockhole below well lid; Joist, bracket holes, supporting plate slotted eye and spring eye are arranged on the support, following circular groove is arranged on the joist; Lockhole, undercut, switch room are arranged on the lock core, and lock core and latch hook are connected as a single entity, and dowel hole is arranged on the latch hook; Dowel and supporting plate hole are arranged on the supporting plate.Opening the device of being made up of one group of screw rod, screw rod column cap, sleeve, handle and locking bar that drives a well of this mechanical safety device realizes; Driving a well is with screw thread in the sleeve in the device, and locking bar, filler ring and handle are arranged on the sleeve, and screw rod is arranged in the sleeve.The first step is sidelong one of well lid stay hook into the well seat during use, second goes on foot the device fill-in well cover lock hole rotation handle that will drive a well again makes locking bar enter undercut, the 3rd step was rotated crank makes the screw rod column cap make dowel leave dowel hole under the supporting plate top, rotating handle then makes latch hook return to the edge of well lid, the 4th step was rotated handle after setting level well lid round about, make latch hook pin well lid, rotating crank more round about makes dowel insert dowel hole, the 5th step withdrawed from locking bar from undercut, withdrawed from the device that drives a well from the well lid lockhole then; The method of opening well lid is to carry out according to above-mentioned second and third, four, five steps, only well lid will be mentioned from the well seat after finishing for the 3rd step.

The advantage of this kind anti-theft device for public manhole cover is: the anti-theft device of this anti-theft device below well lid and the device two parts that drive a well are formed, they are all made by simple and mechanical, the opening and closing of well lid all must be used by simple and mechanical special use of the making device that drives a well and realize, device is not to open well lid if drive a well, just as the relation of key and lock; This anti-theft device is in the lock lock to be arranged, supporting plate only be subjected to the driving a well pressure of screw rod column cap of device just can make dowel break away from dowel hole, the spring that can select elastic force big (hard) for use uses manpower and other simple tool can't make dowel break away from the purpose of dowel hole as the spring that supports supporting plate to reach; This anti-theft device can accomplish that thief can't open well lid, only in this way just can make thief well lid can't be stolen or move away from the well seat, can guarantee that promptly the safety of pedestrian and vehicle also can protect the facility in the well not to be destroyed; Device below this anti-theft device well lid only is made up of the device and the spring of some cast irons, the reliability height, does not need regular maintenance.

Description of drawings

How describe the utility model in detail below in conjunction with accompanying drawing realizes:

Fig. 1 is the vertical view of latch hook and lock core structure;

Fig. 2 is the upward view of latch hook and lock core structure;

Fig. 3 is latch hook and the lock core structure sectional view at the AA place;

Fig. 4 is the elevation of supporting plate;

Fig. 5 is the vertical view of supporting plate;

Fig. 6 is the elevation of supporting structure;

Fig. 7 is the lateral view of supporting structure;

Fig. 8 is the vertical view of supporting structure;

Fig. 9 is the elevation after support is installed lock core, supporting plate and spring;

Figure 10 is the lateral view after support is installed lock core, supporting plate and spring;

Figure 11 is lockhole, last circular groove and the schematic diagram of support fixing hole below well lid;

Figure 12 is the sectional view of well lid at the BB place;

Figure 13 is the elevation of stay hook;

Figure 14 is the lateral view of stay hook;

Figure 15 is the schematic diagram after anti-theft device is installed below the well lid;

Figure 16 is the structural representation of device of driving a well;

Figure 17 is screw rod is connected an end with crank a vertical view;

Figure 18 is the vertical view of slide block.

Represented among Fig. 1, Fig. 2 and Fig. 3 is that latch hook (1) and lock core (5) are connected as a single entity, and a dowel hole (4) is arranged on latch hook (1); Lockhole (2), undercut (3) and switch room (6) are arranged on the lock core (5), and A is the position of expression lock core (5) section; Represented among Fig. 4 and Fig. 5 is that dowel (7) and supporting plate hole (9) are arranged on the supporting plate (8); Represented among Fig. 6, Fig. 7 and Fig. 8 is following circular groove (23), joist (10) to be arranged on the support (11) and bracket holes (12), supporting plate slotted eye (13) and spring eye (14) are arranged; Represented supporting plate slotted eye (13) and the supporting plate hole (9) on the supporting plate (8) that is supporting plate bolt (15) passes support (11) is installed in supporting plate (8) on the support (11) among Fig. 9 and Figure 10, supporting plate (8) can serve as that axle rotates up and down with supporting plate bolt (15), spring (17) is fixed on support (11) upper support supporting plate (8) by spring bolt (16), lock core (5) is placed on the following circular groove (23) on the support joist (10), and the dowel (7) on the supporting plate (8) is inserted in the dowel hole (4) on the latch hook (1); Represented among Figure 11 and Figure 12 is well lid lockhole (22) on the well lid (19) and last circular groove (20) and the support fixing hole (21) below the well lid (19), and B is the position of representing well lid (19) section; Represented among Figure 13, Figure 14 and Figure 15 is the signal of stay hook (18) structure and the signal that latch hook (1), support parts such as (11) and stay hook (18) are installed in well lid (19) lower position; Figure 16 is represented is the structure of device of driving a well, the main body of device of driving a well is one and has handle (25), threaded sleeve (24) in locking bar (26) and the filler ring (32), a screw rod (27) is arranged in sleeve (24), one end of screw rod (27) has and screw rod (27) is the screw rod column cap (31) of one, the other end is that a crank fixing hole (30) is arranged in the middle of the square, crank (28) can be fixed with fixed screw (29) and this end of screw rod, sleeve spring (33) and slide block (34) can have an end of locking bar (26) to be inserted in the outside of sleeve (24) from sleeve (24), one end of sleeve spring (33) be fixed on filler ring (32) below, the other end of sleeve spring (33) is fixed on the slide block (34), and slide block (34) can slide along sleeve (24) outside; Figure 17 is the structural representation of screw rod (27) and crank (28) cohesive end; Figure 18 is the structural representation of slide block (34).

The specific embodiment

How specify the utility model below realizes: when making well lid (19) with well lid lockhole (22), to go up circular groove (20), support fixing hole (21) and stay hook (18) good and carry out the processing of necessity with well lid (19) casting, upward the diameter and the screw thread of hole reach designing requirement to make the well lid (19) of casting; The supporting plate hole (9) of supporting plate (8) is alignd with supporting plate hole slot (13) on the support (11), passed supporting plate slotted eye (13) and supporting plate hole (9) are installed in supporting plate (8) on the support (11) with supporting plate bolt (15), supporting plate (8) can serve as that axle rotates up and down with supporting plate bolt (15), spring (17) is gone up in order to support supporting plate (8) with the spring eye (14) that spring bolt (16) is fixed on the support (11), the static height of selected here spring (17) should be highly consistent with the reservation between supporting plate (8) and support (11), is convenient to the installation of spring (17); Lock core (5) put into the following circular groove (23) on the joist (10) and dowel hole (4) on the latch hook (1) is inserted on the dowel (7) on the supporting plate (8); Then the upper end (the upper end here is meant an end that does not have undercut (3) and switch room (6) on the lock core (5)) of lock core (5) is put in the last circular groove (20) on the well lid (19), the bracket holes (12) that passes on the support (11) with fixed screw (29) is fixed to support (11) on the support fixing hole (21) on the well lid (19), when dowel (7) left dowel hole (4), lock core (5) can rotate in last circular groove (20) and following circular groove (23); The anti-theft device of well lid part installs.

The device that drives a well is assembling like this, screw rod (27) and sleeve (24) are all packaged corresponding screw thread, there is an end of locking bar (26) to be inserted in the outside of sleeve (24) from sleeve (24) sleeve spring (33) and slide block (34), one end of sleeve spring (33) is fixed on filler ring (32) is gone up, the other end is fixed on the slide block (34), the effect of sleeve spring (33) only is the weight that supports the device that drives a well, so this spring should select for use the less spring of elastic force to get final product; Buttress the handle (25) on the sleeve (24), screw rod (27) there is an end of crank fixing hole (30) have the end screw-in of locking bar (26) to stay the outside of sleeve (24) other end from the other end back-out of sleeve (24), the screw rod column cap (31) of screw rod (27) other end from sleeve (24) up to this end of screw rod (27), again crank (28) is installed on the screw rod (27), with fixed screw (29) crank (28) is fixed on the screw rod (27), the device that drives a well just assembling finishes.

The first step has one of stay hook (18) to be sidelong into the well seat well lid (19) during use, second goes on foot an end fill-in well cover lock hole (22) and the lockhole (2) that the device that will drive a well makes sleeve (24) downwards, slide block (34) contacts the back and slides on the lateral of sleeve (24) with well lid (19), rotating handle (25) makes locking bar (26) rotate 90 degree in switch room (6), sleeve (24) is subjected to the effect of sleeve spring (33) upward force and lifts, make locking bar (26) enter undercut (3), at this moment be stuck in the interior locking bar (26) of undercut (3) and sleeve (24) stood on the well lid (19) firmly by the slide block (34) that sleeve spring (33) is tightly pushed down; The 3rd the step buttress the handle (25) of the device that drives a well after, rotate crank (28) and make screw rod column cap (31) space by both sides joist (10) on the support downwards, supporting plate (8) is pushed up downwards gradually makes it overcome the support force of spring (17), dowel (7) on supporting plate (8) leaves dowel hole (4), principle according to active force and reaction force, at this moment be subjected to the effect of spring (17) support force, locking bar (26) in the undercut (3) on lock core (5) pushes up lock core (5) to well lid (19), upper end and close the contacting of well lid (19) in last circular groove (20) internal cylinder (5), rotating handle (25) then makes locking bar (26) drive undercut (3), undercut (3) drives lock core (5), lock core (5) drives latch hook (1), make latch hook (1) return to the edge of well lid (19), at this moment contact the frictional force that is produced in order to overcome lock core (5) upper end closely with well lid (19), need bigger power could rotate handle (25); The 4th step was rotated handle (25) after setting level well lid (19) round about, make latch hook (1) pin well lid (19), rotating crank (28) more round about moves up screw rod column cap (31), supporting plate (8) is also upwards lifted by the effect of spring (17) elastic force thereupon, is rotated further the dowel (7) of crank (28) on supporting plate (8) and inserts dowel hole (4); The 5th step made locking bar (26) withdraw from undercut (3) to pressing down handle (25), behind handle (25) rotation 90 degree, locking bar (26) rotates 90 degree simultaneously in switch room (6), upwards mention handle (25) sleeve (24) is withdrawed from from lockhole (2) and well lid lockhole (22) fully; The step of opening well lid (19) is to carry out according to two, three, four, the five above-mentioned steps, only well lid (19) will be mentioned from the well seat after finishing for the 3rd step.

Claims

1. anti-theft device for public manhole cover, comprise well lid (19), support (11), lock core (5), supporting plate (8) and sleeve (24), it is characterized in that: well lid lockhole (22) is arranged on the well lid (19), well lid lockhole (22) is other below well lid (19) last circular groove (20), support fixing hole (21), with the corresponding opposite side of well lid lockhole (22) stay hook (18) is arranged below well lid (19); Joist (10), bracket holes (12), supporting plate slotted eye (13) and spring eye (14) are arranged on the support (11), following circular groove (23) is arranged on the joist (10); Lockhole (2), undercut (3), switch room (6) are arranged on the lock core (5), and lock core (5) is connected as a single entity with latch hook (1), and dowel hole (4) is arranged on the latch hook (1); Dowel (7) and supporting plate hole (9) are arranged on the supporting plate (8); Sleeve is with screw thread in (24), and locking bar (26), filler ring (32) and handle (25) are arranged on the sleeve (24), and screw rod (27) is arranged in the sleeve (24).

2. a kind of anti-theft device for public manhole cover according to claim 1, it is characterized in that: lock core (5) is placed on the following circular groove (23) on support (11) joist (10), supporting plate (8) is installed on the support (11) by supporting plate bolt (15), supporting plate (8) can serve as that axle rotates up and down with supporting plate bolt (15), and the dowel (7) on supporting plate during rotation (8) can insert and break away from the dowel hole (4) on the latch hook (1).

3. a kind of anti-theft device for public manhole cover according to claim 1 is characterized in that: spring (17) is fixed on support (11) upper support supporting plate (8).

4. a kind of anti-theft device for public manhole cover according to claim 1 and 2, it is characterized in that: support (11) is fixed on the support fixing hole (21) of well lid (19), lock core (5) is placed in down in circular groove (23) and the last circular groove (20), and lock core (5) can rotate in last circular groove (20) and following circular groove (23).

5. a kind of anti-theft device for public manhole cover according to claim 1, it is characterized in that: an end of screw rod (27) has screw rod column cap (31), the other end that crank fixing hole (30) is arranged, crank (28) is fixed on the crank fixing hole (30), is with on the screw rod (27) and the interior identical screw thread of sleeve (24).