CN101060236A

CN101060236A - Pipe direction-changing method and stereo bent pipe

Info

Publication number: CN101060236A
Application number: CN 200610172628
Authority: CN
Inventors: 许军
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-11
Filing date: 2006-12-28
Publication date: 2007-10-24

Abstract

The disclosed bending pipe can change bending radial orientation when its applied room is limited, wherein the bending pipe is arranged on the intersected position of two buildings, and the pipe axis projection on building surface or intersection plane is smooth arc line. This invention overcomes problem of thickness limitation of floor or wall, makes full use of the allowed space.

Description

Pipe direction-changing method and stereo bent pipe

Technical field the present invention relates to a kind ofly use in architectural electricity pipe arrangement, building comprehensive wiring or fitting-out work, under the situation of limited space, makes pipe with the method for very big bending radius break-in and adopt the stereo bent pipe of this method.

Background technology is present, and in the national standard of architectural electricity pipe arrangement and comprehensive wiring, the requirement of the minimum bending radius of dark pipe arrangement is not less than 6 times of pipe arrangement caliber, is preferably in more than 10 times.But in actual engineering practice, particularly in fitting-out work, body of wall and floor have considerable restraint to the spatial dimension of pipe.When pipe turns between floor and body of wall, or when body of wall turns to another body of wall that intersects certain angle with it, because pipe is subjected to the restriction of floor or thickness of wall body in the deflection with the direction of floor, body of wall or beam column Surface Vertical, by existing bending method, realize that the bending radius of pipe arrangement caliber is very difficult more than 6 times even 10 times, in many cases, or even impossible.

From the angle of distribution construction, bending radius is big more, passes that cable in the electric pipe arrangement is easy more to be laid and change, and the damage that cable is subjected to when laying is also littler.

In Fig. 1, all the intersection with floor and metope is vertical before and after turning in the axis of pipe, and a and b are respectively pipes in the maximum deviation of allowing with the floor direction vertical with surface of wall.So, when pipe directly turned to body of wall B from floor A, the maximum radius of turn R that can realize was determined by following formula:

R＝r+D/2；

r ²＝(r-a) ²+(r-b) ²

(r 〉=a wherein, r 〉=b)

The method of summary of the invention pipe direction-changing provided by the present invention and stereo bent pipe both can solve because the thickness limits of floor and body of wall can't realize the problem of long radius elbow, can make full use of the spatial dimension that the building body is allowed again, save the path as much as possible, to reduce unnecessary making a circulation.Technical scheme of the present invention is: pipe is between floor and body of wall or two of linking to each other when becoming between the body of wall of certain non-vanishing angles break-in, in not exceeding floor and body of wall locus limited field to pipe, be not less than the turning of the macrobending radius of 10 times of calibers respectively in floor and body of wall or two body of wall intersection location both sides, near two turning smooth connections intersection location, this connection make two turnings make as a whole bending radius and are not less than separately bending radius.

Near two building body intersection location pipeline section is exactly a core of the present invention, and it is a stereo bent pipe.The axis of this stereo bent pipe two buildings on the body planes projection and with the perpendicular plane of the intersection of two building body planes on projection all be level and smooth camber line.In ideal conditions, with the perpendicular plane of intersection of two building body planes on the projection camber line be a circular arc.Can there be the straight line of tangent prolongation at the two ends of circular arc.

In actual applications, absolute level and smooth camber line is difficult to realize, also there is no need painstakingly to pursue.Pipe has certain inside space freely to be passed through for cable, under the situation that pipeline section connects in low-angle broken line mode, because deflection angle is very little, the smooth and easy of cable is passed through influence not quite.Although the absolute bending radius at inflexion point is very little in this case,, we can be the equivalent bending radius of the bend pipe of this low-angle broken line connection as overall bending radius.As long as the equivalent bending radius of this pipeline reaches more than 10 times of caliber, we just think that the overall bending radius of this pipeline has reached 10 times of caliber.In description of drawings, also has concrete explanation about equivalent bending radius.

At floor and body of wall to pipe being restricted under zero the limiting case perpendicular to the deviation distance on floor and the wall direction, turning at the macrobending radius of floor and body of wall or two body of wall intersection location both sides is in respectively in the plane, is two plane bend pipes.They are in the level and smooth tangent connection of intersection location, and this tangent line parallels with the intersection of building between the body.Under this limiting case, many pipes are side by side during break-in, owing to circuitously near intersection take up room too much, have between the pipe at a distance of very big distance.

Here said locus limited field for pre-buried hidden pipe, is often referred to the floor that do not comprise coat of plaster and decorative layer and the inside of body of wall; For comprehensive wiring or the circuit modification that the finishing stage implements, be often referred to the floor that comprises coat of plaster and decorative layer and the inside of body of wall.

By the pipe direction-changing method that the present invention realizes, the bending radius of pipe can freely be selected by actual demand.

Generally require occasion, what the bending radius of bend pipe was chosen as caliber just can reach degree of mobility preferably more than 10 times.

For making pipeline more unobstructed, the bending radius of bend pipe can be chosen as 15 times of caliber, even more than 20 times.

This method is equally applicable to be adjacent to the turning of bright tubulature of floor, ground and body of wall.

The present invention is further described below in conjunction with accompanying drawing for description of drawings

Fig. 1 is the bending method schematic diagram of present electric pipe arrangement

Fig. 2 is a kind of example schematic (stereogram) of the inventive method execution mode, also is the schematic diagram of neutral body bend pipe of the present invention simultaneously.

Fig. 3 is the three-view diagram of the stereo bent pipe among the present invention

Fig. 4 is the schematic diagram that the low-angle broken line connects between the pipeline section

Fig. 5 is the three-view diagram that flexibly connects

Fig. 6 is the schematic diagram that is movably connected in different angles

Among the figure, A. floor, B. body of wall, D. caliber, the R. bending radius, a. pipe in floor with the maximum permissible deviation distance of floor vertical direction, b. pipe in body of wall with the maximum permissible deviation distance of metope vertical direction, Rx. stereo bent pipe is in the bending radius of projection of a building body plane, and the Ry. stereo bent pipe is in the bending radius of the projection of another building body plane, the Rz. stereo bent pipe with the perpendicular plane of the intersection of two building body planes on the bending radius of projection.

In Fig. 3 example, the radius of curvature R of whole Curved Continuous has nothing to do with allowing deviation distance a and b. A and b have only limited Rz by selecting suitable Rx and Ry, just can make the bending radius of stereo bent pipe part 2 meet or exceed plane bend pipe 1 Radius of curvature R with plane bend pipe 3. And in situation about equating, as long as Rz ≠ 0, Rx＜R so, Ry＜R.

In a kind of loose situation, Rz 〉=R just, at this time, and if select Rx=∞, Ry=∞, pipe and two The intersection of building body is vertical, has just got back to the method for directly turning round of Fig. 1.

In Fig. 4, when the deflection angle θ between pipeline section is very little, can be at an easy rate in the lumen passageway of pipe, at pipeline Near axis finds a curve L that bending radius is as far as possible big, and the bending radius of its each line segment is respectively R1, R2, R3, Or individual continually varying function. In actual applications, we can be considered as whole broken line pipeline to the bending radius of curve L Equivalent bending radius.

The embodiment embodiments of the present invention have two kinds: 1, utilize mould to produce the macrobending radius stereo bent pipe of different size model in batches; 2, utilize angle pipe equipment,, be processed into macrobending radius stereo bent pipe or the part of pipe is processed into macrobending radius stereo bent pipe as the bend pipe spring.

Claims

1. one kind at the architectural electricity pipe arrangement, the method of bending tube with large bending radius of using in building comprehensive wiring or the fitting-out work, it is characterized in that: pipe is between two continuous building bodies that form an angle during break-in, do not exceeding the limited field (a of building body to the locus of pipe, b) in, comprise the stereo bent pipe (2) that at least one section minimum bending radius is not less than 10 times of calibers (D) two building body intersection location, the axis of this stereo bent pipe two buildings on the body planes projection and with the perpendicular plane of the intersection of two building body planes on projection all be level and smooth camber line, and the two ends of this stereo bent pipe are not less than the plane bend pipe (1 of 10 times of calibers respectively with minimum bending radius, 3), the stereo bent pipe that straight tube or another section minimum bending radius are not less than 10 times of calibers smoothly link to each other or low-angle ground broken line continuous.

2. bending method according to claim 1 is characterized in that: when connecting in the broken line mode between described stereo bent pipe, plane bend pipe and the straight tube, the deviation angle of axis is less than 20 °.

3. bending method according to claim 1 is characterized in that: between described stereo bent pipe, plane bend pipe and the straight tube during smooth connection, this connection makes connected two parts make as a whole bending radius and is not less than 10 times of caliber.

4. according to claim 1,2 or 3 described bending methods, it is characterized in that: the connection between described stereo bent pipe, plane bend pipe and the straight tube both can be fixedly connected, also can be to flexibly connect.

5. macrobending radius stereo bent pipe of in architectural electricity pipe arrangement, building comprehensive wiring or fitting-out work, using, it is characterized in that: between two continuous building bodies that form an angle during break-in, the axis of stereo bent pipe two buildings on the body planes projection and with the perpendicular plane of the intersection of two building body planes on projection all be level and smooth camber line, the bending radius of stereo bent pipe is not less than 10 times of caliber (D).

6. stereo bent pipe according to claim 5 is characterized in that: some part of this stereo bent pipe is the plane bend pipe that straight tube or minimum bending radius are not less than 10 times of calibers, and they smoothly link to each other with other parts of stereo bent pipe or low-angle ground broken line links to each other.

7. stereo bent pipe according to claim 6 is characterized in that: when connecting in the broken line mode between described stereo bent pipe, plane bend pipe and the straight tube, the deviation angle of axis is less than 20 °.

8. stereo bent pipe according to claim 6 is characterized in that: between described stereo bent pipe, plane bend pipe and the straight tube during smooth connection, this connection makes connected two parts make as a whole bending radius and is not less than 10 times of caliber.

9. according to claim 6,7 or 8 described stereo bent pipes, it is characterized in that: the connection between described stereo bent pipe, plane bend pipe and the straight tube both can be fixedly connected, also can be to flexibly connect.

10. according to claim 5,6,7 or 8 described stereo bent pipes, it is characterized in that: the axis of stereo bent pipe with the perpendicular plane of intersection of two building body planes on projection do not exceed the limited fields (a, b) of two building bodies to the locus of pipe.