CN204435420U

CN204435420U - A kind of self-locking anti-drop well lid

Info

Publication number: CN204435420U
Application number: CN201420863325.8U
Authority: CN
Inventors: 韩辉
Original assignee: Guilin University of Electronic Technology
Current assignee: Guilin University of Electronic Technology
Priority date: 2014-12-31
Filing date: 2014-12-31
Publication date: 2015-07-01
Anticipated expiration: 2024-12-31

Abstract

The utility model discloses a kind of self-locking anti-drop well lid, comprise well lid and manhole cover base, well lid is placed on manhole cover base, it is characterized in that: described manhole cover base is provided with the latch hook be rotatably connected with it, the surface of described well lid is provided with the groove for holding latch hook, the bottom of groove is provided with wedge projection, and the crotch shape termination of latch hook links mutually with wedge projection; Described wedge projection and latch hook are two.This self-locking anti-drop well lid good anti-drop effect, is not easily washed open by the current under well lid, can increase the safety on road surface when there is waterlogging.

Description

A kind of self-locking anti-drop well lid

Technical field

The utility model relates to well lid technical field, specifically a kind of self-locking anti-drop well lid.

Background technology

Often waterlogging is there is in modern city because hard place area is excessive, the urban duct manhole cover support be positioned on surface of the street is often washed open by the water gushed out, and water covers surface of the street pedestrian and well head be can't see by vehicle, thus occur that people treads in well in city, washed away the tragedy of dying by current.Modern tap water well lid can bear top-down pressure, and due to himself weight larger, generally can keep stable position, and to poor from the water impact resistivity below well lid, particularly above well lid due to waterlogging have ponding time, more easily washed open by the current under well lid, cause the danger on road surface greatly to increase.

Utility model content

The purpose of this utility model is for above-mentioned situation, and provides a kind of self-locking anti-drop well lid, this good anti-drop effect, is not easily washed open by the current under well lid, can increase the safety on road surface when there is waterlogging.

The technical scheme realizing the utility model object is:

A kind of self-locking anti-drop well lid, comprise well lid and manhole cover base, well lid is placed on manhole cover base, unlike the prior art: described manhole cover base is provided with the latch hook be rotatably connected with it, the surface of described well lid is provided with the groove for holding latch hook, the bottom of groove is provided with wedge projection, and the crotch shape termination of latch hook links mutually with wedge projection.

Described wedge projection and latch hook are two.

When well lid is normally placed on well head, latch hook is placed in groove, easily moves latch hook and opens well lid.

When urban waterlogging occurs, well water is gushed out and is promoted well lid when moving upward from well, and because well lid is upwards subjected to displacement, latch hook and wedge projection link mutually and form hook lock snap close, and snap close is by automatic locking well lid.

Therefore, this self-locking anti-drop well lid good anti-drop effect, is not easily washed open by the current under well lid, can increase the safety on road surface when there is waterlogging.

Accompanying drawing explanation

Fig. 1 is the structural representation of embodiment;

Fig. 2 is the structural representation of well lid.

In figure, 1. well lid 2. manhole cover base 3. latch hook 4. groove 5. wedge projection 6. crotch shape termination.

Detailed description of the invention

Below in conjunction with drawings and Examples, the utility model content is further described, but is not to restriction of the present utility model.

Embodiment:

With reference to Fig. 1 Fig. 2, a kind of self-locking anti-drop well lid, comprise well lid 1 and manhole cover base 2, well lid 1 is placed on manhole cover base 2, described manhole cover base 2 is provided with the latch hook 3 be rotatably connected with it, the surface of described well lid 1 is provided with the groove 4 for holding latch hook 3, and the bottom of groove 4 is provided with wedge projection 5, and the crotch shape termination 6 of latch hook 3 links mutually with wedge projection 5.

Wedge projection 5 shown in Fig. 1 Fig. 2 and latch hook 3 are two, groove 4 linearly shape, and groove 4 also can be arranged by other shapes.

Wedge projection 5 is for hooking well lid 1 with the crotch shape termination 6 of latch hook 3 front end, when well lid 1 is normally positioned on manhole cover base 2, latch hook 3 is placed in groove 4, on wedge projection 5, easily move the crotch shape termination 6 linked mutually and open well lid 1 with the snap close that wedge projection 5 is formed, when waterlogging occurs well water gush out from well promote well lid 1 move upward, at this moment because well lid 1 is upwards subjected to displacement, snap close, by automatic locking well lid 1, prevents well lid 1 displacement.

Claims

1. a self-locking anti-drop well lid, comprise well lid and manhole cover base, well lid is placed on manhole cover base, it is characterized in that: described manhole cover base is provided with the latch hook be rotatably connected with it, the surface of described well lid is provided with the groove for holding latch hook, the bottom of groove is provided with wedge projection, and the crotch shape termination of latch hook links mutually with wedge projection.

2. self-locking anti-drop well lid according to claim 1, is characterized in that: described wedge projection and latch hook are two.