CN2687259Y

CN2687259Y - Omnibearing locking device for inspection well cover

Info

Publication number: CN2687259Y
Application number: CN 200420032650
Authority: CN
Inventors: 冷定刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-01-29
Filing date: 2004-01-29
Publication date: 2005-03-23
Anticipated expiration: 2014-01-29

Abstract

The utility model relates to an omnibearing locking device for manhole cover, which mainly is composed of lock rods arranged at different directions of the bottom of a manhole cover, return springs on the lock rods, a fixing baffle, a limit baffle and a guide tube. The lock rods and a force arm are connected through a pin shaft. When an opening handle is plugged in the locking hole of the manhole cover, a locking bar on the handle extrudes the force arm, the force arm produces displacement under the function of a stressing ring to open the lock rods at the different directions. The manhole cover is opened by the handle under the exogenic action. The omnibearing locking device has the advantages of reasonable structure, reliable locking, novel design, easy manufacturing and low production cost and is suitable for the installation and use of the various manhole covers of civicism, fire control, communication, etc.

Description

Inspection shaft covers comprehensive locking device

The utility model relates to a kind of Inspection shaft cover lock and decides device, particularly be a kind of comprehensive locking device that is applicable to various underground inspection shafts lid usefulness.

The construction of city municipal administration, fire-fighting, communication, national defense facility need be laid underground pipelines such as various blowdowns, row's rain, productive life water, builds some inspection shaft facilities.In addition, the development along with national defence communication and civilian communication also needs to bury underground a large amount of underground cables.Also need to build a large amount of inspection shafts as standby in order to safeguard and to overhaul conveniently.And the well lid that these municipal inspection shafts and communication, fire-fighting inspection shaft all need to install cast iron or steel additional is protected, is made its normal operation, is not subjected to any destruction.But present inspection shaft lid for various reasons, and stolen phenomenon with damage happens occasionally, and casualties that particularly serious is stolen owing to the inspection shaft lid and damage causes or motor vehicle are by the damage incident, and its economic loss of bringing is huge often.In order to prevent that the inspection shaft lid is stolen and damage that some measures have all been taked in enterprise, municipal administration, connect walling crib and well lid with the two-way locking device of simple mechanism or with metallic bond, these measures have reduced the stolen and damage incident of some inspection shaft lids.But these measures still come with some shortcomings.The method of two-way its locking of locking device is too simple, and lockhole mostly is an in-line, is easy to be familiar with by the people and be stolen.And the inspection shaft lid that connects with metallic bond has also lost antitheft function because of locking pliers widely-used.In addition because present inspection shaft lid all is two-way locking or metallic bond connected mode, these inspection shafts cover to roll at motor vehicle and are easy to generate mechanical impact in the process, make the inspection shaft lid be ground bad, produce bothersome noise simultaneously, be unfavorable for the demand of people's modern life environment.

Owing to above reason, I have invented a kind of comprehensive Inspection shaft cover lock and have decided device, and this comprehensive Inspection shaft cover lock is decided device, locking effect is reliable, and manufacturing cost is low, and processing method is easy, modern design is applicable to the comprehensive locking device that various inspection shaft lids are installed.

The purpose of this utility model is stolen and to damage, reduce the inspection shaft lid stolen or damage the people who is caused and hinder accident or motor vehicle and fall into a kind of inspection shaft that into is damaged accident and designs and cover comprehensive locking device in order to solve inspection shafts such as city municipal administration, fire-fighting, communication lid.

The purpose of this utility model is achieved through the following technical solutions.At first designed on multi-direction locking bar, the locking bar at the different directions of inspection shaft lid return spring has been installed, the displacement of location plate washer and positive stop block, locking bar is spacing with guide pipe, at locking bar be subjected to connect with bearing pin between the tool arm.Design the roller of trough of belt at the other end of the arm of force, designed a holding capacity ring on the certain position of the arm of force, a holding capacity ring is fixed by bolts to inspection shaft and covers.In the time need opening the inspection shaft lid with the unlatching handle, the handle of special use is inserted in the lockhole, bolt by different directions on the handle backs down the arm of force, the outside displacement of the arm of force is moved in the opposite direction with hour locking lever, open the locking bar of different directions, open the bolt that has return spring on the handle and open under the effect of spring this moment, when open bolt width covers the length of lockhole greater than inspection shaft, under external force inspection shaft being built dike then rises, the unlatching handle that inspection shaft covers is opened at inspection shaft lid and is mentioned the back and with hand bolt is taken out by entering and open handle, finishes the open function of inspection shaft lid.Because this locking device adopted the comprehensive locking of mechanical type, locking effect is reliable, has reduced two-way lock mode and the mechanical impact that produces.

The utility model is because rational in infrastructure, and locking means is reliable, modern design, and manufacturing cost is lower, is applicable to that inspection shaft lids such as various municipal administrations, fire-fighting, communication use.

Provide embodiment below in conjunction with accompanying drawing

Fig. 1: be the utility model front view

Fig. 2: be the utility model sectional view

Fig. 3: be the utility model schematic diagram

As shown in Figure 1-Figure 3: formation of the present utility model is included in locking bar (2), (13), (14), (15) that inspection shaft lid bottom different directions is provided with, return spring (4), location plate washer (3), positive stop block (5), guide pipe (6), locking bar is connected with bearing pin (9) with the arm of force (8), and the other end of the arm of force has been installed the roller (11) of trough of belt.At the certain position of the arm of force holding capacity ring (7) has been installed, propped up the holding capacity ring is fixed on the last composition of inspection shaft lid (1) different directions with bolt (12) locking device.When opening the inspection shaft lid, with the special opening handle insert in the inspection shaft lid cross lockhole (10), the bolt of handle front end backs down the arm of force, the arm of force makes the locking bar of different directions to intrinsic displacement under the effect of bearing ring, open the locking bar of different directions, simultaneously the bolt of band spring outwards flicks on the special opening handle, makes bolt width after flicking greater than the length of lockhole, under external force the inspection shaft lid is mentioned, with hand the handle bolt is pinned the back then and take out, finish the open function of inspection shaft lid.

Claims

1, a kind of inspection shaft covers comprehensive locking device, it is characterized in that it is to be connected with bearing pin (9) with the arm of force (8) by the locking bar (2), (13), (14), (15) that are arranged on inspection shaft lid bottom different directions that described inspection shaft covers comprehensive locking device, has installed a holding capacity ring (7) at the certain position of the arm of force and has constituted.

2, inspection shaft as claimed in claim 1 covers comprehensive locking device, it is characterized in that described holding capacity ring (7) and the arm of force (8) composition lever principle.

3, inspection shaft as claimed in claim 1 covers comprehensive locking device, it is characterized in that being equipped with on described locking bar (2), (13), (14), (15) return spring (4), positioning baffle (3), postive stop baffle (5), guide pipe (6).

4, inspection shaft as claimed in claim 1 covers comprehensive locking device, it is characterized in that the design of the described arm of force (8) other end has the roller (11) that drives groove.