JP3027819U - Snow melting duct - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a snow melting duct for use in road drainage pipe equipment that can be manufactured at low cost by using standard piping materials. [Construction] A heater (10) is attached to an inner cylinder (3) fitted with PVC100AVU standard connection sockets (2) at both ends.
And a heat insulating material (12) are wound, an outer cylinder (1) of the PVC125AVP standard is covered, and the connection socket (2) and the outer cylinder (1) are welded.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to snow melting equipment for drainage pipes such as roads.

[0002]

[Prior art]

 Conventionally, in drainage pipes that drain rainwater from roads and the like, in order to prevent the rainwater from freezing during cold weather, a heater is wrapped around the pipe and a steel plate as a protective material is wrapped over it.

[0003]

[Problems to be solved by the device]

 In the conventional technology, since the iron plate is used, the weight becomes large and a fixing band for fixing the iron plate is required. The purpose of the present invention is to be manufactured at low cost because it has a small weight and does not require an iron plate or a fixing band.

[0004]

[Means for Solving the Problems]

 For the above-mentioned purpose, the present invention has a heater (10) and a heat insulating material (12) wound around an inner cylinder (3) fitted with PVC100AVU standard connection sockets (2) at both ends, and a PVC100AVP standard outer cylinder ( 1) is put on these, and the connection socket (2) and the outer cylinder (1) are welded (4) to be constructed.

[0005]

[Action]

 The connection socket (2) and the outer cylinder (1) have a small difference between the outer diameter and the inner diameter, and these are fixed by fillet welding.

[0006]

【Example】

 The details of the present invention will be described below with reference to the embodiments shown in the drawings.

FIG. 1 shows the outer shape of a snow melting duct according to the present invention, and its cross section is shown in FIG. In this embodiment, a PVC100AVU standard pipe is used for the inner cylinder (3).

For manufacturing, first, the left connecting socket (2a) is fixed to one end of the inner cylinder (3), then the heater (10) and the heat insulating material (12) are attached, and then the power cable (11) is attached. The outer cylinder (1) can be easily installed by inserting the outer cylinder (1) through the hole provided in the outer cylinder (1), and finally fitting the other right connection socket (2b) and fixing it by welding (4). is there. The manufacturing order may be such that the right connection socket (2b) is attached first, and the heat insulating material (12) is conveniently a foam filling material.

[0009]

[Effect of device]

 Since the snow melting duct according to the present invention uses standard VP and VU pipes and connecting sockets, which are standard products, the snow melting duct can be manufactured at low cost.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a sectional view showing an embodiment of the present invention.

[Explanation of symbols] 1 outer cylinder 2 connection socket 2a left connection socket 2b right connection socket 3 inner cylinder 4 welding 10 heater 11 power cable 12 heat insulating material

Claims (1)

[Scope of utility model registration request] 1. A heater (10) and a heat insulating material (12) are wound on an inner cylinder (3) fitted with PVC100AVU standard connection sockets (2) at both ends, and an outer cylinder (1) conforming to the PVC125AVP standard is covered therewith, A snow melting duct formed by welding (4) the connection socket (2) and the outer cylinder (1).