CN201065535Y - Anti-theft inspection well - Google Patents

Abstract

The utility model discloses a theftproof manhole, comprises a manhole cover (1) and a manhole coil (3); wherein, a plurality of nuts are arranged on the manhole cover (1), and a round pedal ring is arranged under the manhole coil (3). A plurality of nut tubes is welded on the round pedal ring. The manhole cover (1) is connected with the manhole coil (3) to a whole after a pressed bolt (6) connecting with the nuts and the nut tubes.

Description

Anti-stealing manhole

Technical field

The utility model relates to the city water supply and draining, the underground cast iron inspection shaft device that gives joint portion, pipe laying road maintenance usefulness such as telecommunications, coal gas.Specifically, the utility model is a kind of cast iron inspection shaft device.

Background technology

Known cast iron inspection shaft is made up of inspection shaft circle and inspection shaft lid, does not have any lock control devices, and like this, some unprincipled fellows to seek undue profits, cause very big harm to Pedestrians and vehicles in the dead of night or just inspection shaft is covered during no worker monitor and steal.Particularly at night, the pedestrian falls into the inspection shaft mouth because of carelessness, and injury just happens occasionally; The vehicle that some are run at high speed causes mechanical failure after falling into the inspection shaft mouth.

The utility model content

The technical problems to be solved in the utility model provides a kind of simple in structure, firm and durable, and cost is lower, is difficult for stolen anti-stealing manhole.

The utility model is achieved by following technical proposals: be provided with one or more nut bore at inspection shaft Gai Bianyuan; Be arranged with one or more circular toe ring at inspection shaft circle base, on circular toe ring, be welded with the nut pipe,, after the connection of nut pipe, the inspection shaft lid is combined into an integral body with the inspection shaft circle by pressing bolts and nuts.

In technique scheme, nut bore is arranged in the circle 10mm-20mm of inspection shaft lid limit, and circular toe ring is arranged on the internal circle 10mm-20mm place apart from inspection shaft circle base, and to straight welded nut pipe, the effective steel pipe of nut two ends welded nut is made on the circular toe ring.After nut pipe and circular toe ring were to straight welding, its top should not be higher than the inspection shaft lid back side.In said structure spare, nut bore, circular toe ring, nut pipe press bolt and should symmetry dispose, particularly the interior circular diameter of circular toe ring should be able to be by pressing bolt, pressing bolt by behind inspection shaft box nut and the nut pipe like this, make nut pipe and inspection shaft ring foot ring stressed, thereby the inspection shaft lid is combined into a stressed integral body with the inspection shaft circle.

In technique scheme, circular toe ring can give giving after the system and utilize the molten iron high-temperature soldering to make when being embedded on the casting sand mold casting with reinforcing bar; Also can directly make by the model casting foundry goods.Inspection shaft box nut hole also can be given burying when nut is cast on casting sand mold and be utilized the molten iron high-temperature soldering to make, and also can make by covering drilling and tapping at inspection shaft.

Owing to adopted technique scheme, the inspection shaft lid is pressed bolt and is connected with nut pipe, inspection shaft ring foot ring by the inspection shaft box nut and forms a stressed integral body, thereby having prevented that inspection shaft from covering is stolen easily by the unprincipled fellow.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is the circular anti-stealing manhole well lid of a utility model plan view.

Fig. 2 is the circular anti-stealing manhole walling crib of a utility model plan view.

Fig. 3 is the utility model nut pipe stereogram.

Fig. 4 is the overall plan view after the circular anti-stealing manhole Fig. 1 of the utility model, Fig. 2, Fig. 3 aggregate erection.

Fig. 5 is that the utility model rectangle anti-stealing manhole is installed the back overall plan view.

Fig. 6 is the utility model rectangle anti-stealing manhole walling crib plan view.

Fig. 7 is the utility model rectangle anti-stealing manhole well lid plan view.

Fig. 8 is the rectangle anti-stealing manhole well lid plan view of another kind of moulding.

The specific embodiment

Among the embodiment shown in Figure 1, inspection shaft covers 1 Φ 600mm, in the circle 15mm of distance limit, be provided with the nut 2 of symmetry, nut 2 Φ 12mm, before 1 casting of inspection shaft lid, earlier nut 2 is given and being embedded on the casting sand mold, after molten iron high temperature is made its welding when utilizing casting, cast cleaning is clean, make with public nut 2 holes of cleaning of the silk of Φ 12mm.

Among the embodiment shown in Figure 2, inspection shaft circle 3 base Φ 620mm, the 20mm of place is provided with symmetrical circular toe ring 4 apart from the base internal circle, circular toe ring 4 selects for use the reinforcing bar of Φ 6mm to give system, circular 4 one of toe rings give the steel bar end that stays 50-100mm long, before inspection shaft circle 3 casting, earlier steel bar end is given being embedded on the casting sand mold, stay circular toe ring 4 outside casting sand mold, utilize molten iron high temperature when casting that the steel bar end of circular toe ring 4 is welded under inspection shaft circle 3 bases and make.

Among the embodiment shown in Figure 3, nut pipe 5 selects the steel pipe of Φ 22mm, gets length 15mm, and the nut of two ends welding Φ 12mm is welded on the bottom on the circular toe ring 4 shown in Figure 2 after making.Make back nut pipe and circular toe ring 4 overall height 40mm.

Fig. 4 is the anti-stealing manhole overall plan view after Fig. 1, Fig. 2, Fig. 3 combination, and among the figure, inspection shaft lid 1 has two nuts 2 of symmetry; Inspection shaft circle 3 has two circular toe rings 4 of symmetry, is welded with two nut pipes 5 of symmetry on the circular toe ring 4, and the combination back is pressed bolt 6 with two inspection shaft lid 1 is combined into a stressed integral body tightly with inspection shaft circle 3.

Fig. 5, Fig. 6, Fig. 7, embodiment shown in Figure 8 are a kind of rectangular anti-stealing manholes, and its technical scheme and Fig. 1, Fig. 2, Fig. 3, shown in Figure 4 identical are so be omitted.

Claims (4)

1. an anti-stealing manhole comprises inspection shaft lid, inspection shaft circle, it is characterized in that described inspection shaft lid (1) is provided with one or more nut (2); Described inspection shaft circle (3) base is provided with one or more circular toe ring (4), be welded with nut pipe (5) on the described circular toe ring (4), described press bolt (6) by with being connected of nut (2), nut pipe (5) after, inspection shaft lid (1) and inspection shaft circle (3) are combined into an integral body.

2. anti-stealing manhole according to claim 1 is characterized in that, described nut (2) is arranged in the circle 10mm---20mm of inspection shaft lid (1) limit.

3. anti-stealing manhole according to claim 1 is characterized in that, described circular toe ring (4) is arranged on apart from inspection shaft circle (3) base internal circle 10mm---20mm place, and the interior circular diameter of its circular toe ring (4) should be able to pass and press bolt (6).

4. anti-stealing manhole according to claim 1 is characterized in that, described nut pipe (5) lower end and circular toe ring (4) to straight welding after, its top should not be higher than inspection shaft lid (1) back side.

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