CN86206796U

CN86206796U - Safety manhole for waterpipe and sewer

Info

Publication number: CN86206796U
Application number: CN 86206796
Authority: CN
Inventors: 杨振侠
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-04-30
Filing date: 1987-04-30
Publication date: 1988-02-10

Abstract

The utility model relates to a safety manhole cover for a water pipe and a sewer. The utility model comprises the manhole cover and a manhole head. The present manhole head for the water pipe and the sewer, which is not provided with any locking device, is easily lost for threatening a passerby. The utility model is provided with a safety device on an ordinary manhole cover, the safety device is fastened with the manhole head, and a special all-purpose key is provided to open and close the manhole cover; therefore, the purpose of preventing loss is achieved.

Description

Safety manhole for waterpipe and sewer

A kind of well lid that is applicable to upper and lower water course.

At present the upper and lower water course well lid that uses is discoid ironcasting mostly, opens the hole of two rectangular or other shapes with the center symmetry on the well lid face, so that open and close well lid.Because it is well lid just is placed on the thrust mouth of well head, does not have any blocking device, therefore stolen often.That uses at present also has a kind of well lid, and the one end is hinged with bearing pin with walling crib, start the other end well lid during opening and turn over to one side around bearing pin, but this well lid still has the possibility of losing.In a single day well lid is lost, not only unhygienic but also dangerous, is particularly threatening pedestrian's at night safety.

The purpose of this utility model is to settle the convenient safe and reliable again safeties of a kind of i.e. use for said upper and lower water course well lid, thereby reaches the purpose that prevents loss and ensure pedestrains safety.

The utility model is made up of well lid, walling crib and safety lock.The utility model is to cover at open well to settle safeties.These safeties are dead bolt, pull bar, spring and lock housings that common built-in lock lock body part is installed at the well lid edge; When casting, reserve a boss with the corresponding end margin of safeties on the well lid; Two holes are reserved in the corresponding position of walling crib and safeties and boss when casting, dead bolt on the well lid and boss insert respectively in two holes of walling crib.Open and close the private key that well lid must use the utility model to be equipped with, this key is made with steel plate.

The utlity model has simple in structurely, cost is low, practical characteristics, and can solve well lid and lose the threat problem that causes to the pedestrian.

The utility model has following accompanying drawing:

Fig. 1 is a structure chart of the present utility model.

Fig. 2 is a front view of the present utility model.

Fig. 3 is the utility model well lid sectional view.

Fig. 4 is the front view of the utility model well lid.

Fig. 5 is the sectional view of the utility model walling crib.

Fig. 6 is the utility model safety lock structure chart.

Fig. 7 is the vertical view of the utility model safety lock.

Fig. 8 is that well lid of the present utility model opens and closes the private key structure chart.

Safeties of the present utility model adopt dead bolt (31), spring (32), pull bar (33) and the lock housing (3) of built-in lock, and the fixed chamber of spring (32) sealed with rubber when the lock body was installed, in case get rusty.Is 6 millimeters the bottom edge that is bolted to well lid (1) with the lock body with three diameter of sections, exposes dead bolt (31).Well lid another edge corresponding with safety lock adds in casting and is processed into one long 40 millimeters, wide 25 millimeters, the boss (11) at thick 15 millimeters downward-sloping 25 degree angles man-hour.And walling crib (2) and well lid (1) are insured and are reserved two holes (21), (22) on lock and the corresponding position of boss when casting.Hole (21) is 20 millimeters places under the walling crib edge, and hole (21) are of a size of long 27 millimeters, wide 17 millimeters, and hole (22) are 7 millimeters places under walling crib another edge corresponding with hole (21), and hole (22) are long 27 millimeters, wide 17 millimeters.When placing well lid, the boss of well lid (11) inserts in the hole (22) of walling crib (2), behind the thrust mouth of the inclined-plane contact walling crib (2) of the dead bolt (31) of well lid (1) another side, artificially with from gravity, dead bolt (31) is compressed into lock housing (3), and spring (32) is compressed simultaneously, and well lid (1) bottom surface and walling crib (2) thrust mouth fall when neat, spring (32) ejects dead bolt (31) and snap in the hole (21) of walling crib (2), blocks walling crib (2).If will open well lid, must use opening private key (4).Key (4) is made with long 80 millimeters, wide 4 millimeters, thick 3 millimeters steel plate.65 millimeters places open wide 4 millimeters a, keyhole (12) of long 22 millimeters apart from the edge on the face of well lid (1).During opening key (4) is inserted keyhole (12), in the fixing hole (36) at the bottom of the ledge insertion lock housing of key (4), this bore dia is 6 millimeters, usefulness such as the key that fixes (4) and leakage soil, water.Key (4) clockwise rotates around fixing hole (35), Key hook just hooks pull bar (33) and pulls back, and when dead bolt (31) was drawn out the hole (21) of walling crib (2), key (4) had hooked well lid (1) simultaneously, upwards carry key (4), just can open well lid.

Claims

1, a kind of well lid that is applicable to upper and lower water course, it is made up of well lid (1), walling crib (2), it is characterized in that being provided with safeties (3) on well lid (1), and safeties comprise lock housing, dead bolt, spring and pull bar.During closed condition, dead bolt is stuck in the hole on the walling crib.

2, according to the well lid of claim 1, it is characterized in that: except that safeties, also should have at least one chucking claw to fasten walling crib on the well lid.