Conduit device containing at least one conduit pipe

 

(57) Abstract:

The invention relates to conduit device. The device contains at least one conduit pipe from thermoplastic plastic with a round cross-section channel, the inner wall of which is parallel to the edges of the slide. Ribs slide is made with slip zones in the form of helical lines with opposite direction of winding through the deployment of the inner wall of the channel in the form of a series of waves. The length of a series of waves is in the range of 80 - 160 see the Amplitude of these waves is less than one-quarter of the inner perimeter of the conduit channel. 6 C.p. f-crystals, 4 Il.

The invention relates to conduit device containing at least one conduit pipe from thermoplastic plastic with a round cross-section channel with passing parallel edges of the slides, which have slip bands, made in the form of helical lines with opposite direction of winding through the deployment of the inner wall of the channel in the form of a series of waves. The term "conduit " device" means as a separate conduit pipes [1] , and aggregates cab as individual cables, and bundles of cables that enter or pushing or drawing.

From the well-known conduit devices [3] the length of a series of waves is chosen arbitrarily. This applies also to the amplitude of the waves. There is the possibility that the location of the edges of the slip in a few complete turns with alternating direction of the helix. When pulling or pushing the cable into the conduit channel [1, 2] there are twisting forces acting inhibitory way. In [3] largely eliminated the occurrence of such twisting forces. In addition, reduces the effort required to push or pull the input cable.

The purpose of the invention is the creation of a conduit device, which would have brought not only to minimize the impact torque, but reduced the above linear pulling force.

The purpose is achieved thanks to the fact that the wavelength of a series of waves is in the range from 80 to 100 cm and waves have an amplitude which is less than a quarter of the inner perimeter of the channel of the conduit.

Edge slides have a height of more than 0.1 mm, mostly 0.3 to 0.5 mm Between the edges of the slide are recesses or grooves. Ribs slide mo approximates the cross-sectional shape of the ribs slide. The length of a series of waves of ribs slide is about 100 cm, the Amplitude of a series of waves of ribs slide is in the range of 1/8-1/4 inner perimeter of the channel of the conduit.

In the present invention provides a significant reduction in the linear retractor efforts in comparison with the known forms of execution. This is, in particular, when the diameter of the conduit channel is 30-70 mm, mostly about 70 mm, But the diameter may be large, for example equal to 110 mm Diameter cable or bundle of cables is then, typically, about 50 mm by Changing the wavelength and amplitude of a series of waves of ribs slide you can set the optimum dimensions for each pair of the diameter, i.e. the diameter of the conduit channel, on the one hand, and the diameter of the pulled cable or bundle of cables, on the other hand. Essential for solving the problem of the invention, the data relating to the length of the wave series and amplitude, lead to a significant reduction retractor or stalkivalsa effort. In such experiments it is necessary to pay attention to the fact that the angle between the edges of the slide and the axis of the pipe was not too large, because otherwise, that is,x slip occurs inhibitory component. The wavelength should be in the traditional diameters as large, and the amplitude is the maximum small.

In Fig. 1 shows a conduit device, the cross-section of Fig. 2 is a side view with cutaway of Fig.3 - node I in Fig.1; Fig.4 - the location of the edges of the slide in the conduit reamer of the site.

Conduit device 1 may contain one or more conduit tubes 2. The jumper 3 you can attach other conduit pipe. Conduit pipe 2 may be outside a circular cross-section. Pipes made of thermoplastic plastic.

In the described exemplary embodiment of the invention conduit pipe 2 has a round cross-section channel 4 with an inner wall having passing parallel ribs 5 slip. In Fig.4 ribs 5 sliding on the basis of the scan is directed in the form of a series of waves. The wavelength L is in this example of execution of the invention 100 cm, and it may be equal to from 0 to 160 see for a given wavelength L is the distance between two points of return R in the step is approximately 50 cm, as shown by the double arrow 6. Scan corresponds to what na surface conduit channel 4. If the radius of the conduit channel to take over the unit, you can specify the inner perimeter in angular extent. The total perimeter is 360aboutand the amplitude a of the wave train is equal max 90about.

Ribs 5 slides have a height of 0.1 mm, but mostly a height of 0.3 to 0.5 mm In Fig.1 and 3 between the ribs 5 slides are grooves 7, the cross-sectional shape which in this example corresponds to approximately the cross-sectional shape of the ribs 5 of the slip. Amplitude and may be even lower than it is shown in Fig.4, for example, in the range of 1/8-1/4 internal perimeter of the conduit channel 4.

1. CONDUIT DEVICE CONTAINING AT LEAST ONE CONDUIT PIPE from thermoplastic plastic with a circular cross-section conduit channel running parallel to each other on the inner wall edges of the slides, which have slip bands, made in the form of helical lines with opposite direction of winding through the deployment of the inner wall of the channel in the form of a series of waves, characterized in that the wavelength of a series of waves is equal to 80 - 160 cm and waves have amplitude less than 1/4 of the internal perimeter of the conduit 1 mm, but mostly 0,3 - 0,5 mm

3. The device under item 1 or 2, characterized in that between the edges of the slide are grooves, the cross-sectional shape which approximately corresponds to the cross-sectional shape of the ribs slide.

4. Device according to one of paragraphs.1 to 3, characterized in that the length of a series of waves of ribs slide is ~ 100 cm.

5. Device according to one of paragraphs.1 to 4, characterized in that the amplitude of a series of waves of ribs slip 1/8 - 1/4 internal perimeter of the conduit channel.

6. Device according to one of paragraphs.1 to 5, characterized in that the diameter of the conduit channel is 30 - 70 mm

7. The device according to p. 6, characterized in that the diameter of the conduit channel is ~ 50 mm .

 

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