CN2775448Y

CN2775448Y - Shround ring for metal pipeline drilling hole

Info

Publication number: CN2775448Y
Application number: CN 200520069543
Authority: CN
Inventors: 司家武
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-03
Filing date: 2005-03-03
Publication date: 2006-04-26
Anticipated expiration: 2015-03-03

Abstract

The utility model relates to an improved shroud ring for drilling a hole on a pressure pipeline, which is characterized in that the inner wall on the neck of an upper pipe clip is provided with a rustproof protection lining. An inner circle surface of a lower pipe clip is symmetrically provided with two axial bearing bar plates, and lower screw holes on the lower pipe clip are evenly made into holes with inner hexagonal edges. Contiguous surfaces of the upper pipe clip and the lower pipe clip are made into the outer periphery in the shape of an inner concave. The shroud ring for drilling the hole on the pressure pipeline has the advantages of rust resistance, break resistance, convenient operation and high use safety.

Description

Metallic conduit perforate shroud ring

Technical field

The utility model belongs to the boring device of the pipeline that bears air pressure or hydraulic pressure, and the device of arm is installed in the on-the-spot perforate of especially a kind of pipeline with pressure.

Background technique

Existing water supply pipe and gas pipe line, often need be under the situation of not stopping the supple of gas or steam of not cutting off the water, be under the pipe pressurized situation, arm is set up in on-the-spot perforate, usually use shroud ring to solve this problem, but the neck easy-to-rust seepage of the last pipe clamp of shroud ring, following pipe clamp is when bolton connects, because pipeline outer surface and following pipe clamp inner circumferential surface are non-working surface, easily formation point, line contact and stressed concentrating, following pipe clamp easy-rupturing, and the screw bolt and nut between the upper and lower pipe clamp tightens simultaneously, be subjected to the placing restrictions on of space, troublesome poeration, extremely inconvenient.

Summary of the invention

The purpose of this utility model provides a kind of improved pipeline with pressure perforate shroud ring, makes the neck resistant to rust of pipe clamp durable, the anti-fracture of following pipe clamp, and bolt, pair of nut that upper and lower pipe clamp connects are tightened easy to operate.

The purpose of this utility model is achieved like this: a kind of by the last pipe clamp that connects with bolt, pair of nut, time pipe clamp be contained in the metallic conduit perforate shroud ring that the seal ring on the pipe clamp inwall is formed, it is characterized in that on the neck inner chamber tube wall of the standpipe of last pipe clamp, fixedly install rust stable protection lining, this protection serves as a contrast with high-grade cement or rubber, nylon and makes; On the internal circular surfaces of following pipe clamp, certain at interval distance symmetry fixedly installs the axial stressed gusset of twice, and the stressed gusset of these twice is made one with following pipe clamp, but also setting-in is integral, when stressed gusset was metallic material, its internal surface was processed into the arc surface with the same diameter of pipeline; So, upper and lower pipe clamp is with bolt, when pair of nut is fastenedly connected, and the power that pipeline acts on down pipe clamp is distributed on the stressed gusset, and stress surface is the face contact, and is symmetrically and evenly stressed, and the break resistance of following pipe clamp greatly improves and can not rupture; In addition, each on the following pipe clamp down screw all made up-small and down-big step type and macropore is interior hexagonal hole, like this bolt, when pair of nut is tightened, six square toes of bolt are located in interior hexagonal hole, nut screwing clamping is rapidly convenient, operating personnel's operation also makes things convenient for; On neighbouring of upper and lower pipe clamp of while, inner concave shape is made in the outer periphery between each adjacent in twos screw, has not only alleviated the deadweight of shroud ring, and has increased operating personnel's operating space; The neck resistant to rust that has so just realized last pipe clamp is durable, the anti-fracture of following pipe clamp, and connecting bolt, pair of nut are tightened easy to operate purpose.

The metallic conduit perforate that the utility model proposed is rational in infrastructure, safe and reliable with shroud ring, corrosion resistant, and anti-fracture, easy to operate.

Now in conjunction with the accompanying drawings and embodiments the metallic conduit perforate that the utility model proposed is further described with shroud ring.

Description of drawings

Fig. 1 is the main cross-sectional schematic of the metallic conduit perforate that proposes of the utility model with shroud ring.

Fig. 2 is the schematic top plan view of the metallic conduit perforate that proposes of the utility model with shroud ring.

Among Fig. 1: 1, stressed gusset 2, down pipe clamp 3, down screw 4, pipeline 5, seal ring 6, go up pipe clamp 7, protection lining 8, bolt, pair of nut

Among Fig. 2: 9, outer periphery

Embodiment

From Fig. 1, Fig. 2 as can be seen, a kind of by the last pipe clamp 6 that connects with bolt, pair of nut 8, time pipe clamp 2 be contained in the metallic conduit perforate shroud ring that the seal ring 5 on pipe clamp 6 inwalls is formed, it is characterized in that on the neck inner chamber tube wall of the standpipe of last pipe clamp 6, fixedly install rust stable protection lining 7, these protection lining 7 usefulness high-grade cements or rubber, nylon are made; On the internal circular surfaces of following pipe clamp 2, certain at interval distance symmetry fixedly installs the axial stressed gusset 1 of twice, and the stressed gusset 1 of these twice is made one with following pipe clamp 2, but also setting-in is integral, when stressed gusset 1 was metallic material, its internal surface was processed into the arc surface with pipeline 4 same diameters; So, upper and lower pipe clamp 6,2 usefulness bolts, when pair of nut 8 is fastenedly connected, the power that pipeline 4 acts on down pipe clamp 2 is distributed on the stressed gusset 1, and stress surface is the face contact, and is symmetrically and evenly stressed, and the break resistance of following pipe clamp 2 greatly improves and can not rupture; In addition, each on the following pipe clamp 2 down screw 3 all made up-small and down-big step type and macropore is interior hexagonal hole, like this bolt, when pair of nut 8 is tightened, six square toes of bolt are located in interior hexagonal hole, nut screwing clamping is rapidly convenient, operating personnel's operation also makes things convenient for; On neighbouring of upper and lower pipe clamp 6,2 of while, inner concave shape is made in the outer periphery 9 between each adjacent in twos screw, has not only alleviated the deadweight of shroud ring, and has increased operating personnel's operating space; The neck resistant to rust that has so just realized last pipe clamp 6 is durable, following pipe clamp 2 anti-fractures, connecting bolt, pair of nut 8 are tightened easy to operate, when on-the-spot pipeline 4 press and open holes connect the arm operation, upper and lower pipe clamp 6,2 usefulness bolts, the pair of nut 8 with shroud ring connected earlier, the fastening position of being scheduled at pipeline 4 in place, seal ring 5 presses the outer wall of pipeline 4 perforates, above last pipe clamp 6, gate valve is installed then, special-purpose drilling machine is installed on the gate valve, just can successfully finish pipeline 4 bands and press boring to connect the work of arm.

Claims

1, a kind of by the last pipe clamp (6) that connects with bolt, pair of nut (8), time pipe clamp (2) be contained in the metallic conduit perforate shroud ring that the seal ring (5) on pipe clamp (6) inwall is formed, it is characterized in that:

A, on the neck inner chamber tube wall of the standpipe of last pipe clamp (6), fixedly install rust stable protection lining (7);

B, on the internal circular surfaces of following pipe clamp (2), certain at interval distance symmetry fixedly installs the axial stressed gusset (1) of twice, the stressed gusset of these twice (1) is made one with following pipe clamp (2);

The following screw (3) of on c, time pipe clamp (2) each all makes up-small and down-big step type and macropore is interior hexagonal hole;

On neighbouring of d, upper and lower pipe clamp (6), (2), inner concave shape is made in the outer periphery (9) between each adjacent in twos screw.

2, metallic conduit perforate shroud ring according to claim 1 is characterized in that stressed gusset of twice (1) and following pipe clamp (2) setting-in are integral.