CN2734836Y

CN2734836Y - Theft-proof manhole cover

Info

Publication number: CN2734836Y
Application number: CN 200420087042
Authority: CN
Inventors: 孙岭; 朱涛; 马文军
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-08-12
Filing date: 2004-08-12
Publication date: 2005-10-19
Anticipated expiration: 2014-08-12

Abstract

The utility model discloses an antitheft manhole cover. The top surface of a cover plate is provided with a slot provided with a rolling sealing cover, the central shaft of the cover plate positioned in the slot is vertically provided with a through hole penetrating the upper and lower surfaces of the cover plate. The through hole is provided with a rotary shaft positioned by the stopping shoulder of the upper part, the middle part of the rotary shaft is provided with a positioning blind hole vertical to the axial line, and the cover plate at the side of the rotary shaft positioned in the slot is embedded with a mechanical lock. The free end of the lock bolt of the mechanical lock extends in the positioning blind hole on the rotary shaft, the lower end of the rotary shaft is horizontally provided with an elliptical disc, and the both sides of the lower surface of the cover plate are respectively and symmetrically provided with sliding sleeves. The sliding sleeves are respectively sheathed with horizontal rods, and the inner side ends of the two horizontal rods near the rotary shaft are respectively provided with clipping plates provided with horizontal notches. The two clipping plates are respectively clipped on the outer periphery of the elliptical disc, and compression springs are respectively sheathed on the horizontal rods among the clipping plates and the sliding sleeves. The utility model can effectively prevent the manhole cover being stolen and prevent people opening the manhole cover optionally. The use is safe and reliable, and the antitheft manhole cover can completely eliminate the nudity of the manhole openings of sewers.

Description

Anti-stealing manhole cover

Technical field

The utility model belongs to the improvement of the well lid structure that is installed in pipe trench well head places such as sewer, particularly anti-stealing manhole cover.

Background technology

At present, each is big, in the small and medium-sized cities well lid at pipe trench well head place such as sewer stolen manifest of common occurrence, for this reason, people have thought that various ways address this problem, as use cement well lid, Resin man-hole cover etc. instead, these well lids do not have recycle value, generally can be not stolen, however, or some likes mischief-making people arbitrarily well lid to be opened, well head is exposed at one's discretion, and exposed well head causes great threat for people's life security.

The utility model content

The purpose of this utility model is to provide a kind of anti-stealing manhole cover, can prevent effectively that not only well lid is stolen, and can also prevent that people from arbitrarily opening it, and is safe and reliable, thereby thoroughly stops the exposed phenomenon of sewer well head.

The purpose of this utility model is achieved in that a kind of anti-stealing manhole cover, comprise cover plate, the groove that has the capping of overturning is being set on the end face of cover plate, the cover plate central axis that is positioned at groove vertically is being provided with the through hole that connects the cover plate upper and lower surface, the rotating shaft of leaning on its shoulder block location, top is being set in the through hole, the middle part of rotating shaft is being provided with the location blind hole perpendicular with its axis, the rotating shaft side cover plate setting-in that is positioned at groove mechanical lock, the free end of its dead bolt stretches in the location blind hole in the rotating shaft, the rotating shaft lower end is being horizontally disposed with oval plate, the both sides of cover plate soffit are being symmetrical arranged sliding sleeve respectively, be set with horizon bar in the sliding sleeve, near on the two horizon bar medial extremitys of rotating shaft the clamp with horizontal recess is being set respectively, two clamps are stuck on the outer peripheral edges of oval plate, are being set with the compression spring on the horizon bar between clamp and the sliding sleeve.

During installation, can on the well head inwall, dig pit respectively in relative both sides, in order to hold the two ends of the utility model horizon bar, during use, earlier capping is opened, key is inserted in the lockhole of mechanical lock and rotate, its dead bolt is return, rotating shaft can be rotated in the rotating shaft upper end with jacket casing again, the oval plate that is installed in the rotating shaft lower end also rotates thereupon, when the outer peripheral edges that turn to its minor axis place when oval plate contact with clamp, under the effect of compressing spring, be sleeved on just horizontal movement in opposite directions respectively of the horizon bar in the sliding sleeve below the cover plate, cover plate can be opened.Otherwise rotating shaft makes the residing outer peripheral edges of major axis of oval plate contact with clamp, two horizon bars can be ejected respectively to both sides, in order to the locking cover plate, with the key turns mechanical lock its dead bolt is stretched in the location blind hole in the rotating shaft again, buckles capping and gets final product.Want to open cover plate, must use key, like this, can prevent effectively that not only well lid is stolen, and can also prevent that people from arbitrarily opening it, safe and reliable, thus thoroughly stop the exposed phenomenon of sewer well head.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is a plan structure schematic diagram of the present utility model;

Fig. 2 is the structural representation of looking up of the present utility model;

Fig. 3 is the A-A cross-sectional view among Fig. 1.

The specific embodiment

A kind of anti-stealing manhole cover as Fig. 1, Fig. 2, shown in Figure 3, comprises cover plate 4, the material that cover plate 4 can not be recycled and be worth with cement, resin etc.The groove that has the capping 3 of overturning is being set on the end face of cover plate 4, and capping 3 is hinged by hinge and cover plate 4.Cover plate 4 central axis that are positioned at groove vertically are being provided with the through hole that connects cover plate 4 upper and lower surfaces, and the rotating shaft 1 of leaning on its shoulder block location, top is being set in the through hole, and the top of rotating shaft 1 is square column type or hexagonal cylindricality.The middle part of rotating shaft 1 is being provided with the location blind hole perpendicular with its axis, as shown in Figure 3, rotating shaft 1 side cover plate 4 setting-ins that are positioned at groove mechanical lock 2, the free end of its dead bolt 10 stretches in the location blind hole in the rotating shaft 1, rotating shaft 1 lower end is being horizontally disposed with oval plate 8, the both sides of cover plate 4 soffits are being provided with the sliding sleeve of arranging axisymmetricly 6 respectively, be set with horizon bar 5 in the sliding sleeve 6, near on two horizon bars, 5 medial extremitys of rotating shaft 1 clamp 7 with horizontal recess is being set respectively, the shape of cross section of clamp 7 is the C font.Two clamps 7 are stuck on the outer peripheral edges of oval plate 8, are being set with compression spring 9 on the horizon bar 5 between clamp 7 and the sliding sleeve 6.

During installation, can on the well head inwall, dig pit respectively in relative both sides, in order to hold the two ends of the utility model horizon bar 5, during use, earlier capping 3 is opened, key is inserted in the lockhole of mechanical lock 2 and rotate, its dead bolt 10 is return, rotating shaft 1 can be rotated in rotating shaft 1 upper end with jacket casing again, the oval plate 8 that is installed in rotating shaft 1 lower end also rotates thereupon, when the outer peripheral edges that turn to its minor axis place when oval plate 8 contact with clamp 7, under the effect of compressing spring 9, be sleeved on the just horizontal movement in opposite directions respectively of horizon bar 5 in the cover plate 4 following sliding sleeves 6, cover plate 4 can be opened.Otherwise rotating shaft 1 makes the residing outer peripheral edges of major axis of oval plate 8 contact with clamp 7, two horizon bars 5 can be ejected respectively to both sides, in order to locking cover plate 4, with key turns mechanical lock 2 its dead bolt 10 is stretched in the location blind hole in the rotating shaft 1 again, buckle capping 3 and get final product.Want to open cover plate 4, must use key, like this, can prevent effectively that not only well lid is stolen, and can also prevent that people from arbitrarily opening it, safe and reliable, thus thoroughly stop the exposed phenomenon of sewer well head.

Claims

1, a kind of anti-stealing manhole cover, comprise cover plate (4), it is characterized in that: the groove that has upset capping (3) is being set on the end face of cover plate (4), cover plate (4) central axis that is positioned at groove vertically is being provided with the through hole of perforation cover plate (4) upper and lower surface, the rotating shaft (1) of leaning on its shoulder block location, top is being set in the through hole, the middle part of rotating shaft (1) is being provided with the location blind hole perpendicular with its axis, rotating shaft (1) side cover plate (4) setting-in that is positioned at groove mechanical lock (2), the free end of its dead bolt (10) stretches in the location blind hole in the rotating shaft (1), rotating shaft (1) lower end is being horizontally disposed with oval plate (8), the both sides of cover plate (4) soffit are being symmetrical arranged sliding sleeve (6) respectively, be set with horizon bar (5) in the sliding sleeve (6), near on two horizon bars (5) medial extremity of rotating shaft (1) clamp (7) with horizontal recess is being set respectively, two clamps (7) are stuck on the outer peripheral edges of oval plate (8), are being set with compression spring (9) on the horizon bar (5) between clamp (7) and the sliding sleeve (6).

2, anti-stealing manhole cover according to claim 1 is characterized in that: the shape of cross section of said clamp (7) is the C font.