CN2526350Y

CN2526350Y - Displacement prevention anti-theft manhole cover

Info

Publication number: CN2526350Y
Application number: CN 02218904
Authority: CN
Inventors: 王兴翔
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-02-10
Filing date: 2002-02-10
Publication date: 2002-12-18
Anticipated expiration: 2012-02-10

Abstract

The utility model relates to a displacement prevention anti-theft manhole cover which includes a cover body and a base body which is a round and peripheral frame structure and matched with the base body into a round body. The external peripheral wall of the cover body is wholly connected with a plurality of arc-shaped protruding positioning blocks; accordingly, the corresponding inner wall of the base body is provided with a plurality of grooves which are matched with the positioning blocks of the cover body, with the positioning blocks and the grooves coordinately connected with each other. The two sides of the cover body are provided with anti-theft locks which are connected with the base body. The utility model is produced through the high temperature and high pressure processing of the macromolecule compound material, so that the utility model is light and has the double functions of vibration and pressure resistance. As the material cannot be used for the second time, the stealing of the cover is prevented. The arrangement of a plurality of arc-shaped protruding positioning blocks on the periphery of the cover to match with the arc-shaped grooves, the displacement is prevented. The manhole cover is connected with the base body through an anti-theft concealed lock, the utility model achieves a good result in theft prevention and can prevent the irrelevant persons from arbitrarily opening the cover.

Description

Anti-displacement anti-stealing manhole cover

Technical field

The utility model relates to the inspection shaft lid on the road of a kind of city.

Background technology

The inspection shaft lid that uses on the urban road at present, all adopting cast iron is that the raw material casting forms, theftproof performance is poor, because of recycling and stolen serious, do not have fixed structure between inspection shaft lid and the pedestal, easily produce displacement and vibrations, add that the plasticity of cast iron materials is poor, roll for a long time and shake easily and crack phenomenons such as appearance cracking damage.

Summary of the invention

The purpose of this utility model is exactly in order to address the above problem, and a kind of anti-displacement anti-stealing manhole cover is provided.

The technical solution that this is practical:

A kind of anti-displacement anti-stealing manhole cover, it includes the lid and the pedestal of inspection shaft lid, pedestal is the circular periphery frame construction, lid is the round that matches with pedestal, it is characterized in that being connected with a plurality of arc projection locating pieces in that the lid periphery wall is integrated spaced, correspondingly, have the groove that matches with the lid locating piece at the base vivo wall correspondence position, they coincide and are connected, and are provided with theftproof lock in the lid both sides and link to each other with pedestal.

The utility model adopts polymer composite to make through HTHP, it is in light weight, anti-pressure ability improves greatly, have antidetonation and measuring body dual performance, because of this material can not utilize so stolen phenomenon can be stopped again, the lid edge is provided with a plurality of arcs and protrudes out locating piece and match with the recessed arc groove of pedestal, so can not produce displacement.The inspection shaft lid links to each other with pedestal by antitheft burglar lock, and good anti-theft effect can prevent that unrelated person from opening arbitrarily, and the body face that covers also is provided with two and drops down the water hole, utilizes this hole can trip out inspection shaft again easily and covers.Also be provided with anti-skidding muscle above the lid, can increase frictional resistance.Cover materials inside is embedded with the compressive strength that indented bars can strengthen lid, the pedestal periphery be provided with reinforcing rib with the rigidity of strengthening frame and with the secure fixation on ground.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the A-A structural representation of Fig. 1.

Fig. 3 is the B-B structural representation of Fig. 1.

The specific embodiment

As Fig. 1-3, the utility model includes the lid 1 and the pedestal 2 of inspection shaft lid, pedestal 2 is the circular periphery frame construction, the round of lid for matching with pedestal, characteristics of the present utility model be, is connected with a plurality of arc projection locating pieces 3 in that lid 1 periphery wall is integrated spaced, correspondingly, have the groove 4 that matches with lid 1 locating piece 3 at pedestal 2 inwall correspondence positions, they coincide and are connected, and can play anti-translocation.Can be provided with theftproof lock 5 in lid 1 both sides links to each other with pedestal 2.

The integrated spaced projection locating piece 3 that is connected with of the utility model lid 1 periphery wall is four of symmetry preferably, are shaped as semicircle, correspondingly have four semi-circular recesses 4 that match with lid 1 locating piece 3 of symmetry at pedestal 2 inwalls, their identical being connected.

In the utility model, theftproof lock 5 on the lid 1 can adopt anti-theft bolt, both side surface is provided with anti-theft bolt hole 6 before lid 1, the aperture, top of this two bolt hole 6 is greater than the hex bolts head of anti-theft bolt 5 separately, being convenient to sleeve stretches into, correspondingly, be provided with the screw 7 that matches with anti-theft bolt 5 at pedestal 2 both sides correspondence positions, after lid 1 is positioned on the pedestal 2, just penetrate also correspondence two screws 7 of precession pedestal 2 from anti-theft bolt hole, lid 1 both sides 6 with two anti-theft bolts 5, make lid 1 and pedestal 2 constitute an integral body, be difficult for stealing.

The utility model can have two through hole 8 at lid 1 two ends, be convenient to leak and the staff open with hook.Lid 1 surface is provided with the anti-skidding muscle 9 of fan-shaped grid type.Anti-skidding muscle 9 juts of fan-shaped grid type are circular arc, and its height is similar to the convex tendon that the blind person on the road walks at 3-5mm.

Lid 1 of the present utility model and pedestal 2 adopt polymer composite to make, and it is in light weight, and crushing resistance is good, and is thermosets, can't reclaim, and that steals is useless, is respectively equipped with indented bars 10 and reinforcing rib 11 in lid 1 and the pedestal 2, plays a part to gain in strength.

Claims

1, a kind of anti-displacement anti-stealing manhole cover, it includes the lid and the pedestal of inspection shaft lid, pedestal is the circular periphery frame construction, lid is the round that matches with pedestal, it is characterized in that being connected with a plurality of arc projection locating pieces in that the lid periphery wall is integrated spaced, correspondingly, have the groove that matches with the lid locating piece at the base vivo wall correspondence position, they coincide and are connected, and are provided with theftproof lock in the lid both sides and link to each other with pedestal.

2, by the described anti-displacement anti-stealing manhole cover of claim 1, the projection locating piece that it is characterized in that described lid periphery wall is four of symmetry, be shaped as semicircle, correspondingly have four semi-circular recesses that match with the lid locating piece of symmetry at base vivo wall, they coincide and are connected.

3, by the described anti-displacement anti-stealing manhole cover of claim 1, it is characterized in that the theftproof lock on the described lid adopts anti-theft bolt, both side surface is provided with the anti-theft bolt hole before lid, the aperture, top of this two bolt hole is greater than the hex bolts head of anti-theft bolt separately, correspondingly, be provided with the screw that matches with anti-theft bolt at pedestal both sides correspondence position.

4, by the described anti-displacement anti-stealing manhole cover of claim 1, it is characterized in that having two through hole at the lid two ends.

5, by the described anti-displacement anti-stealing manhole cover of claim 1, it is characterized in that being provided with the anti-skidding muscle of fan-shaped grid type in top surface, the anti-skidding muscle jut of fan-shaped grid type is a circular arc, and its height is at 3-5mm.

6,, it is characterized in that described lid and pedestal adopt polymer composite to make, and are respectively equipped with indented bars and reinforcing rib in lid and the pedestal by the described anti-displacement anti-stealing manhole cover of claim 1.