CN201193436Y

CN201193436Y - Cover lock for sand drain

Info

Publication number: CN201193436Y
Application number: CNU2008200470238U
Authority: CN
Inventors: 李宝强
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-26
Filing date: 2008-04-26
Publication date: 2009-02-11
Anticipated expiration: 2018-04-26

Abstract

The utility model discloses a sand well cover lock. The lock is characterized in that the lock comprises a supporting bracket which can be installed on a sand well cover and a lock hook component matched with the supporting bracket, wherein, a lock hole is arranged on the supporting bracket, one end of the lock hook component can be buckled on the surface of the supporting bracket, and the other end penetrates the lock hole and is locked on the bottom surface of the supporting bracket. The lock has the advantages of simple structure and convenient locking and unlocking.

Description

A kind of Sand well lid lock

Technical field

The utility model relates to a kind of lockset, particularly a kind of lockset that locks well lid plates such as stream mud well lid, cable operculum colpi.

Background technology

In urban planning and construction, sewer, cable trench spread all over the streets and lanes in city as the important supporting facility in city.Keeping at a certain distance away on sewer, cable trench is provided with the vertical shaft that supplies cleaning, maintenance usefulness, and well lid is housed on vertical shaft.Because well lid is normally made by metal material such as cast irons, the incident that therefore often has the lawless person to steal manhole cover takes place, and after manhole cover was stolen, Liu Nijing, cable trench well just can become the hidden danger of the serious threat people security of the lives and property.The pedestrian of taking place owing to lawless person's pilferage well lid behavior is at the accident of Liu Nijing, the tumble injury of the cable trench well end that appears in the newspapers repeatly.For preventing to steal the generation of manhole cover incident, Sand well lid lock is installed usually on the manhole cover.But the ubiquity structure of traditional Sand well lid lock is complexity, unlatching and the inconvenient problem of locking.

Summary of the invention

In order to overcome the deficiencies in the prior art, the utility model provide a kind of simple in structure, open and lock Sand well lid lock easily.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of Sand well lid lock, it is characterized in that it comprises a lock hook assembly that can be installed in the bearing support on the manhole cover and cooperate with bearing support, described bearing support is provided with lockhole, and an end of described lock hook assembly can be fastened on the bearing support surface, and the other end passes through this lockhole and is locked in the bottom surface of bearing support.

As the utility model preferred embodiment, described lock hook assembly comprises panel and latch hook, one rotating shaft is installed in the described latch hook, latch hook can rotate around the axis, radially be provided with screw in the rotating shaft, be provided with shoulder hole in the described panel, be interspersed with the switch screw in the shoulder hole, the switch screw is threaded with screw in the rotating shaft, between panel and the latch hook extension spring is installed.

As the improvement of the above-mentioned embodiment of the utility model, the panel plug is installed in the macropore of shoulder hole; The end of described switch screw is provided with pin-and-hole, and pin is installed in the pin-and-hole.

The beneficial effects of the utility model are: the utility model is simple in structure, lock hook assembly need only be inserted during locking and be installed on the bearing support of manhole cover, press the switch screw, latch hook is upset automatically under the spring force effect, squeezes on the panel with the switch screw means and with the panel plug to get final product; With drill bit the panel plug is bored during unlatching and open, the switch screw is outwarded winding, the switch screw is pressed down, latch hook is upset automatically under the spring force effect, and pull out lock hook assembly and open manhole cover and get final product, thereby very convenient.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a perspective exploded view of the present utility model;

Fig. 2 is the structural representation under the utility model lock-out state;

Fig. 3 is the sectional view of Fig. 2.

The specific embodiment

With reference to Fig. 1, Fig. 2, Fig. 3, the disclosed a kind of Sand well lid lock of the utility model, comprise a bearing support 1 and the lock hook assembly that cooperates with bearing support 1, bearing support 1 can be installed on the manhole cover by fixed screw 2, bearing support 1 is provided with lockhole 3, an end of lock hook assembly is fastened on bearing support 1 surface when locking, and the other end passes through this lockhole 3 and is locked in the bottom surface of bearing support 1.

As shown in Figure 1; the lock hook assembly that the utility model adopts comprises panel 4 and latch hook 5; panel 4 is provided with flange 15; flange 15 can be fastened on the bearing support surface of lockhole 3 peripheries; one rotating shaft 6 is installed in latch hook 5; latch hook 5 can 6 rotate around the shaft; in rotating shaft 6, radially be provided with screw 7; be provided with shoulder hole 8 in the panel 4; be interspersed with switch screw 9 in the shoulder hole 8, but installation panel plug 11 in the macropore 10 of shoulder hole 8 stops up lockhole to prevent sand and dust; with the protection lockset, prolong the application life of lockset.

Switch screw 9 is threaded with screw 7 in the rotating shaft 6, and is provided with pin-and-hole 12 at the end of switch screw 9, pin 13 is installed, so that the switch screw is located in the pin-and-hole 12.

Between panel 4 and latch hook 5 extension spring 14 is installed, when extension spring 14 was stretched, latch hook 5 can overturn under the effect of extension spring power automatically.

Operating principle of the present utility model is such: during assembling, with screw and nut bearing support is installed on the manhole cover, rotating shaft is installed on the latch hook, the switch screw passes panel, screw on the assembly of rotating shaft and latch hook, and load onto pin and locate, latch hook is connected with extension spring with the assembly of panel, form lock hook assembly (lock hook assembly installs) when dispatching from the factory, lock hook assembly inserted in the lockhole on the bearing support be installed in manhole cover, press the switch screw, switch screw band moveable lock hook moves down, latch hook extension spring in moving process is stretched, at this moment latch hook overturns automatically under the effect of extension spring power, screws the switch screw, and latch hook laterally is stuck in the bearing support bottom surface of lockhole both sides, be locking state, again the panel plug squeezed on the panel.

During release, with drill bit panel plug brill is opened, the switch screw is outwarded winding, the switch screw is pressed down, switch screw band moveable lock hook moves down, latch hook extension spring in moving process is stretched, and at this moment latch hook overturns automatically under the effect of extension spring power, and latch hook is erected state, at this moment lock hook assembly can take out in the lockhole on the bearing support, pull out lock hook assembly, be unlocking condition, at this moment can open manhole cover.

The above only is a preferred embodiment of the present utility model, can not limit protection domain of the present utility model with it, so long as the equalization of doing according to protection domain of the present utility model changes and modify, all should still belong in the scope that the utility model contains.

Claims

1. Sand well lid lock, it is characterized in that it comprises a lock hook assembly that can be installed in the bearing support on the manhole cover and cooperate with bearing support, described bearing support is provided with lockhole, one end of described lock hook assembly can be fastened on the bearing support surface, and the other end passes through this lockhole and is locked in the bottom surface of bearing support.

2. a kind of Sand well lid lock according to claim 1, it is characterized in that described lock hook assembly comprises panel and latch hook, one rotating shaft is installed in the described latch hook, latch hook can rotate around the axis, radially be provided with screw in the rotating shaft, be provided with shoulder hole in the described panel, be interspersed with the switch screw in the shoulder hole, the switch screw is threaded with screw in the rotating shaft, between panel and the latch hook extension spring is installed.

3. a kind of Sand well lid lock according to claim 2 is characterized in that in the macropore of shoulder hole the panel plug being installed.

4. a kind of Sand well lid lock according to claim 2 is characterized in that the end of described switch screw is provided with pin-and-hole, and pin is installed in the pin-and-hole.