WO2015101811A1

WO2015101811A1 - Method for reducing accumulated turning angle of conduit

Info

Publication number: WO2015101811A1
Application number: PCT/IB2013/061451
Authority: WO
Inventors: 许军; 许显斌; 谢晶
Original assignee: 南宁马许科技有限公司; 许军
Priority date: 2013-12-31
Filing date: 2013-12-31
Publication date: 2015-07-09
Also published as: CN109494649A; GB201512748D0; CN112018690A; CN112018688A; CN112072582A; CN112018687A; CN104904083A; CN112072584A; CN112018691A; CN112072578A; CN112018689A; WO2015101912A1; CN112072579A; CN109494649B; GB201512744D0; CN112072583A

Abstract

A method for smoothing a wiring conduit inside a building. Specifically, a method for reducing accumulated turning angle of a wiring conduit inside a building. The method is for use in reducing accumulated turning angle of a wiring conduit connected between sockets of two walls inside a building. The wiring conduit has a midsection laid on the floor and comprises at junctions of two walls and the floor respectively one pseudo-three-dimensional bend. When mounting the sockets onto the walls, this forms an angle of less than 90° between planes at which the sockets are docked with the wiring conduit and the perpendicular of the floor.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of unblocking a cable conduit in a building. In particular, the present invention relates to a method of reducing the cumulative turning angle of a cable conduit within a building.

BACKGROUND OF THE INVENTION The smoothness of a cable pipeline in a building is affected by two important parameters: one is the bending radius of the pipeline when the turning direction is changed; the other is the cumulative turning angle on the pipeline. A PCT application, PCT/CN2007/001 172, and its co-owned British patent, GB 2450851 A, and Chinese patent, CN 101427433 A, discloses a method of unblocking a cable conduit. This invention solves the problem that the cable ducts in the building achieve a bending radius of more than 10 times the diameter of the pipe under the constraints of severe construction conditions. At the same time, by performing the "rotation" operation of the "pseudo-stereoscopic elbow" of the invention, the cumulative turning angle of the cable conduit can be reduced to some extent. Figure 1 shows a view of a standard "pseudo-stereoscopic bend" in which the bend radius R of the pipe is more than ten times the diameter D of the pipe. Figure 2 is a schematic view of the pseudo-stereoscopic bent tube after flattening. The pseudo-stereoscopic elbow is represented by a thick solid line, and the straight line f is the intersection of the OP segment of the pseudo-stereoscopic elbow and the two planes to which the OQ segment belongs, and the ray m and the ray n are perpendicular to the intersection f in the two planes respectively. And the tangent to the circle to which the two planar arc segments belong, and the two planes to which the pseudo-stereo elbow belongs are perpendicular to each other. Here, the cumulative turning angle of the pseudo-stereoscopic bend POQ is the sum of two 90° angles, that is, 180°. The "rotation" of the pseudo-stereoscopic elbow can be decomposed into two steps: the rotation of the ray m as the rotation axis and the direction of the ray n; and the rotation of the ray n as the rotation axis in the direction of the ray m. These two rotations are not in order. Figure 3 is a plan view of the pseudo-stereoscopic elbow after being flattened along the new intersection line g after the above "rotation". It should be noted that there are two intersection lines f, which respectively reflect the position of the actual intersection line f in different planes, and the intersection line f perpendicular to the ray m is in the plane of the pipe segment OP. The intersection line f perpendicularly intersecting the ray n is in the plane in which the tube segment OQ is located. After "rotation", the pipe section PPm and the pipe section QQn become "excess" parts. In Fig. 3, <m and </^1 are the turning angles of the plane elbow pipe segments OPm and OQn after the pseudo-stereoscopic elbow is rotated, respectively, and the cumulative turning angle of the effective portion after the pseudo-stereoscopic elbow is rotated ¹ = < m + < n. Since both ¹ m and ¹ n are less than 90°, ^ < 180°. However, the reduction in the cumulative turning angle that can be obtained by "rotation" is limited by the actual conditions, since the maximum achievable "rotation" is constrained by the vertical deflection limit distance allowed by the building. This can be clearly seen in Figure 4. In the figure, the straight line c is parallel to the intersection line f, and the distances from the two planes before the rotation are a and b, respectively, which are the vertical deflection limit distances allowed by the building body. To significantly reduce the cumulative turning angle of the cable run, you must revisit the individual turning angles on a pipe.

SUMMARY OF THE INVENTION The present invention reduces the cumulative turning angle of a pipe by substantially reducing the local turning angle of the outlets at both ends of a pipe. The method claimed in the present invention is for reducing the cumulative turning angle of a cable conduit connecting a socket between two walls in a building, the middle section of the cable duct is laid on the ground, on two walls The junction of the grounds each includes a pseudo-stereoscopic elbow, wherein when the socket is mounted on the wall surface, a gap between the surface of the socket that abuts the cable conduit and the vertical line of the ground is formed. An angle of 90°. Figure 5 shows several embodiments of a typical in-building plumbing layout. Pipeline design uses the aforementioned The method disclosed in PCT/CN2012/001 172 and its family of patent documents. In the figure, the sockets 101, 102 and 103 are located on one wall, and the socket 100 is located on the opposite wall; g1 and g2 are the intersections of the two walls and the ground; W1, W2 and W3 are the sockets 101, 102, respectively. And the horizontal spacing between 103 and socket 100. The line between the sockets 100 and 101 comprises four segments of right angle bends with an accumulated turning angle of 360°; the cumulative turning angle of the lines between the sockets 100 and 102 is also 360°; and the situation between the sockets 100 and 103 The difference is that since the horizontal distance between the sockets 100 and 103 exceeds the turning radius R by 4 times, the straight pipe on the ground is no longer perpendicular to the wall surface, so that the turning angle of the two elbows on the ground, Ω31 And Ω32, both less than 90°; thus, the cumulative turning radius of this pipe is: 180° ten Ω 31 Ω 32 < 360°. In the limit case, when Ω31 and Ω32 approach 0°, the cumulative turning angle approaches 180°. The relationship between the minimum cumulative turning angle that can be obtained by the conduit between the two opposing wall sockets and the horizontal spacing W of the two sockets is shown in FIG. In this paper, the fine spacing that may exist between the socket and the pipe connection and the center of the socket is neglected; and the bending radius of all the elbows is assumed to be R, and the pseudo three-dimensional elbow is not rotated. When W 4R, the cumulative turning angle is always 360°; when \^ > 4, the cumulative turning angle begins to decrease, and gradually approaches the 180° limit as W increases. Increasing W to reduce the cumulative turning angle is a method that can be fully utilized, but deliberate pursuit is often unrealistic. In Fig. 7, the turning angle Ω0 of the elbow having the bending radius R of the connection socket 100 is 90°. If you want to reduce this turning angle, you must adjust the angle at which the socket 100 intersects the elbow. Figure 8 shows a major improvement of the invention in that the face of the socket 100 intersecting the elbow is no longer horizontal, but forms an angle Ω1 of less than 90° with the vertical line m of the ground; the angle Ω1 is between 30° and 60° It is appropriate. It is worth noting that the height of the socket from the ground is generally 30cm - 35cm _; if R 30cm is selected, the elbow connecting the socket 100 in Fig. 7 is exactly 90°. In Fig. 8, since the turning angle is reduced to Ω1 of less than 90°, a small straight pipe needs to be added between the socket 100 and the bent pipe. Since the original 90° bend becomes a small bend and a small straight tube, the vertical position of the socket remains unchanged. In this case, the horizontal position of the socket must be translated by a small distance μ; this distance can be estimated: When Ω1 = 45°, (V2 - 1) R 0.4 R. Figure 9 shows a piping diagram using a socket tilting solution. As can be seen from the comparison with Figure 5, the cumulative turning angles of the three pipes in the figure have been greatly reduced. When Ω1 is 45°, the relationship between the minimum cumulative turning angle that can be obtained between the two sockets on the opposite wall and the horizontal spacing W of the two sockets is as shown in FIG. At W 4R+2 M^4.8R, the cumulative turning angle is always 270°; when W> 4R+2 ^4.8R, the cumulative turning angle begins to decrease, and gradually approaches 90° as W increases. value.

When Ω1 takes different values, the following comparison data can be obtained (Table 1)

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 shows a view of a standard "pseudo-stereoscopic elbow". Figure 2 is a schematic view of the pseudo-stereoscopic bend of Figure 1 after flattening. Figure 3 is a plan view of the pseudo-stereoscopic elbow flattened along the new intersection line g after "rotation". Figure 4 is a view of the pseudo-stereo elbow as viewed along the line of intersection f after "rotation". Figure 5 shows several embodiments of a typical in-building plumbing layout. Figure 6. Diagram of the relationship between the minimum cumulative turning angle that can be obtained for a pipe between two opposing wall sockets and the horizontal spacing W of the two sockets. Fig. 7 shows a case where the turning angle of the elbow connected to the socket 100 is 90°. FIG. 8 shows the situation after changing the tilt angle of the socket 100. Figure 9. Pipeline layout embodiment after changing the tilt angle of the sockets 100, 101, 102, 103. Figure 10 is a graph of the minimum cumulative turning angle that can be obtained for a conduit between two opposing wall sockets and the horizontal spacing W of the two sockets. Here Ω1 takes a value of 45 °. Figure 1 1. Schematic diagram of the piping when the five sockets and the vertical line m are arranged at an inclination angle Ω1. The pipe in the figure is flattened by the intersection line g1 of the wall surface and the ground; the vertical line m is perpendicular to the intersection line g1. Figure 12 is a schematic diagram showing the horizontal arrangement of five sockets. The inclination of the lower left side of each socket with the perpendicular line m is Ω1; the inclination angle of the lower right side is Ω2; Ω1 + Ω2 = 90°. Figure 13. Two-position socket embodiment. Figure 14 shows the routing of cables in a conventional outlet. Figure 15. The bypass elbow next to the traditional socket. Figure 16 shows a hexagonal socket structure having two upper and lower triangular "overpass areas". Figure 17. Schematic diagram of the piping when using a hexagonal socket.

Embodiments The basic principle of the present invention is to form an inclination angle between a surface of a wall socket connected to a pipeline and a vertical line; this may be a tilt arrangement of a conventional square socket or a two-position rectangular socket, or may be adopted. New socket geometry. Figure 8 shows a prototype of a basic embodiment of the invention. In contrast to the prior art of Fig. 7, the tilt of the socket 100 is such that the original bend having an angle of turn Ω becomes a bend having a turn angle of Ω1. Figure 9 is a layout of the pipe after the tilting scheme is employed. Compared to FIG. 5, the cumulative turning angle of the piping of the socket 100 to the sockets 101, 102, 103 is greatly reduced. When each socket is angled at 45°, the cumulative turning angle of each pipe can be reduced by 90°. The patency of the pipeline has also been greatly improved. As can be seen from Figure 10 and Table 1 above, as the Ω1 decreases, the cumulative turning angle of the pipe is doubled, ie 2 Ω1; however, the straight pipe connecting the elbow and the socket changes accordingly. It will be longer and flatter. Figure 11 is an embodiment employing a 45° tilt angle. The five adjacent sockets 100 are tilted and divided into two rows, arranged in the shape of the letter "M". Two of the sockets are connected by a bent pipe 88, which is referred to herein as a "bypass elbow". Figure 12 shows another embodiment. Ω1 30°, five sockets are horizontally arranged, which are sequentially misaligned and partially joined together. There are two bypass bends 88 in the figure that connect a pair of sockets that are not adjacent to each other. It should be noted that Ω1 30° means Ω2 60°. That is, the turning angle of the elbow connected to the lower right side is 60°. Combining the advantages and disadvantages of all aspects, we believe that the 45° symmetry is a preferred solution that takes both sides into consideration and is easy to implement. Figure 13 is an embodiment of a two position socket. There is still a bypass elbow 88 with a turning angle of 90° to connect a pair of sockets that are not adjacent to each other. The purpose of providing bypass bends in the above embodiments is to facilitate cable passage between the sockets. Because traditional square sockets have limited space; cables, especially those that are harder and thicker, can hardly pass smoothly. Since there is no extra space, it is impossible to reserve some cables in the socket for future use. Fig. 14 shows the case where the cable 87 in the conventional socket is crowded at the corners. In fact, these "transit" cables 87 will inevitably affect the smooth installation of power outlets or information outlets. Although, in the project, a similar bypass elbow can be added outside the socket, such as the bypass elbow 89 in FIG. 15; However, the turning angle of the bypass elbow here is 180°, and the turning angle of the bypass elbow 88 in the foregoing embodiment is only 90°, and the smoothness is obviously not at one level. Combining the aforementioned analysis of many problems with existing sockets, we propose a new socket design. The internal geometry of this new socket consists of a square space and two isosceles triangular spaces. Looking at the overall shape, the new socket is a hexagon that is parallel to the left and right sides. The waists of the two triangles are all hexagonal sides. As shown in FIG. 16, the central square area 1000 of the new socket located on the right side has a space equivalent to the conventional socket 100 on the left side; the upper and lower sides of the new socket have a triangular area, which is called a line area ( 1001 and 1002). Figure 17 is a partial view of a piping embodiment after a new socket is employed. Thanks to the triangular crossing area, these new sockets do not have to be tilted to achieve a reduction in the turning angle, and the two hypotenuses below the socket just meet this requirement. At the same time, the turning angle of the bypass elbow 88 connecting the triangular crossing areas is also much smaller than 180°. If the triangle is an equilateral triangle, then Ω1 = 45° and the bypass bend 88 has a turning angle of 90°. The existence of the triangle crossing area provides great convenience for the "transit" of the cable. The turning angle of the cable is also greatly reduced. Especially for hard and thick cables that are difficult to turn, it is much easier to achieve a 90° turning angle in a narrow socket interior than a 180° turning angle. Moreover, the presence of the triangular crossing zone and the bypass elbow allows the receptacle central space 1000 to be unoccupied. Similarly, when a "transit" cable needs to be adjusted or replaced, the existing power outlet or information outlet may not need to be disassembled due to the presence of a triangular crossover zone and a bypass elbow.

Claims

Claim

A method for reducing a cumulative turning angle of a pipeline, the method for reducing a cumulative turning angle of a cable conduit connecting a socket between two walls in a building, the cable conduit The middle section is laid on the ground, and each of the wall surfaces and the ground includes a pseudo-stereoscopic elbow, and the socket is connected to the cable pipeline when the socket is mounted on the wall surface. An angle of less than 90° is formed between the surface and the vertical line of the ground.

2. The method according to claim 1, wherein the minimum angle of the included angle is 30° and the maximum value is 60°; preferably, the included angle is 45°.

3. The method of claim 2, wherein the two or more sockets having the same angle are sequentially adjacent or lapped together and are on a horizontal line.

4. The method of claim 2, wherein the three or more sockets having the same angle are divided into two adjacent rows, which are sequentially adjacent or overlapped.

The method according to claim 3, wherein one of the two or more sockets is connected by a bypass elbow having a turning angle of 90°.

6. The method of claim 5, wherein the pair of sockets are not adjacent and are not overlapped.

7. The method of claim 3, wherein the two or more sockets are two-position sockets.

The method according to claim 3 or 4, wherein the pseudo-stereoscopic elbow has a bending radius greater than 10 times the diameter of the pipe.

9. A socket capable of reducing a cumulative turning angle of a cable conduit, wherein the socket is hexagonal, comprising a square region and two isosceles triangular crossing regions, the two The waist triangles are respectively located on the upper and lower sides of the square area, and the two waists of the two triangles are the sides of the hexagon.

10. The socket of claim 9 wherein said two isosceles triangles are equilateral triangles.