JPH0131831Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of application) The present invention relates to a piping fixing device, particularly a device for fixing piping that passes through a partition surface such as a floor or wall (hereinafter referred to as a wall plate) to the wall plate. It can be used for fixing itself or as a fixing device for devices such as gas sticks that are fixed to the end of this piping.

(Prior Art and its Problems) A fixing device of this type, which is used for attaching a gas tank to a sink or the like, has already been disclosed in Japanese Utility Model Application No. 58-56275.

This involves fixing a cylinder 5 in a through hole 11 provided in a wall plate 1, inserting a pipe 2 into the cylinder 5, and fixing the pipe 2 using this cylinder. A cylindrical screw 21 that is screwed into the cylindrical body, and this cylindrical screw 21
The split ring 22 and the cylindrical thread 21 are connected to the pipe 2.
When this cylindrical screw is tightened while it is externally fitted, the split ring 21 is tightened by the two tapered surfaces described above, and its diameter is reduced, and the pipe 2 -> split ring 22 -> cylinder 5 -> wall plate 1 route. Fixed by frictional force. (See FIG. 3) This has the advantage that operations such as attaching the cylindrical body 5 and screwing in the cylindrical screws 21 can be performed from the surface side of the wall plate 1.

However, as described above, this method has the disadvantage of poor workability, such as the need to attach the cylindrical body 5 when fixing the piping.

(Problem) The present invention is designed to fix the pipes penetrating through the wall plate 1 to the wall plate 1, and to attach auxiliary members such as the cylinder 5 prior to tightening screws for fixing. In order to make the work unnecessary, the problem is to fix the pipe directly to the wall plate 1 by tightening the screw member screwed into the pipe.

(Means) The technical means of the present invention for solving the above problems will be explained using the reference numerals of the illustrated embodiments.
3, a screw member is screwed into the threaded part, a predetermined gap is provided between the through hole 11 of the wall plate 1 and the pipe 2, and a cylindrical part 31 is inserted into this gap. 3 is interposed between the screw member and the wall plate 1, and the outer periphery of the cylinder part has an elastic cylinder 44 having a tapered outer peripheral surface that expands toward the surface side of the wall plate 1.
At the same time, the inner periphery of the elastic cylinder 4 is partially penetrated and exposed to the inner periphery side of the cylindrical part 31, and the maximum diameter part of the elastic cylinder is made larger than the diameter of the through hole 11.

(Operation) The above technical means of the present invention operates as follows.

When fixing the piping 2, first, with the elastic tube 4 fitted onto the decorative plate 3, this combined body is attached to the wall plate 1.
The cylindrical portion 31 is inserted into the through hole 11 by fitting it onto the pipe 2 that has been passed through the tube. At this time, since the outer periphery of the elastic cylinder 4 is formed into a tapered surface, only a part of the distal end side is in the inserted state.

Next, when a screw member is screwed into the pipe from the outside of the decorative plate 3, the decorative plate is pushed in as the screw member is screwed into the pipe, and the elastic cylinder 4 is also pushed in in the same way.

Along with this pushing, the elastic cylinder 4 is compressed toward the center by the peripheral wall of the through hole 11 of the wall plate 1, and the cylinder part 31
The portion exposed through the pipe 2 is pressed against the outer periphery of the pipe 2.

As screwing of the screw member progresses, the degree of compression increases, and when screwing is completed, the piping 2 is pushed through the elastic tube 4 by the pressure contact force accompanying the elastic return force of the elastic tube 4. and is fixed to the perforated peripheral wall of the wall plate 1. In this way, it can be directly fixed to the wall plate 1 only by tightening the screw members.

(effect) The present invention has the following unique effects.

By tightening the screw member, the elastic cylinder 4 is press-fitted between the piping 2 and the perforated peripheral wall, and the piping is thereby fixed without wobbling.
There is no need to attach the cylindrical body prior to fixing, which simplifies the work.

Furthermore, since the pipe is directly drilled through the hole, no auxiliary member such as a cylinder is required, and the number of parts for fixing the pipe can be reduced.

Furthermore, since it can be fixed by the elastic return force of the elastic cylinder, it can be applied even to wall plates 1 whose strength is insufficient.

(Example) Hereinafter, an example of the present invention will be described with reference to FIGS. 1 and 2.

In this embodiment, as shown in Fig. 1, a threaded portion 23 is provided at the end portion at position 2, and a gas kettle 6 having a connecting threaded portion 61 as a threaded member is attached to this threaded portion. This was used when protruding a gas tank 6 from a wall plate 1 that constitutes a surface.

As shown in the figure, the decorative plate 3 is formed into a ring shape, with a cylindrical portion 31 protruding from the back side, and a cylindrical portion 31 protruding from the front side.
A recessed portion 33 larger than the inner diameter of the cylindrical portion is formed, and the distal end side of the connecting threaded portion 61 is accommodated within this recessed portion 33.

Normally, a tapered screw connection is used to connect the gas kock, but in this embodiment, the concave portion 33 An elastic ring 7 made of rubber or the like is interposed between the bottom part of the connecting screw part 61 and the end part of the connecting screw part 61. This elastic ring can absorb poor fitting of the tapered screw fitting portion due to variations in the amount of protrusion from the wall plate 1 at the end of the pipe and variations in the threaded portion 23.

Next, the cylinder part 31 and the elastic cylinder 4 are constructed as shown in FIG. The same number of protrusions 41, 41 protrude from the inner circumferential surface, facing the square holes.

This elastic tube is made of rubber having a predetermined hardness, and is used by being integrally fitted onto the tube portion 31 of the decorative plate 3, as shown in FIG.

In this externally fitted state, the protrusions 41 and 42 are exposed from the square holes 32 and 32 to the inner peripheral side of the cylindrical portion 31.

Further, in this case, the small diameter portion of the elastic tube 4 is made smaller than the diameter of the through hole 11 of the wall plate 1, so that the assembly of the tube portion 31 of the decorative plate 3 and the elastic tube 4 can be easily inserted.

In this embodiment, since the cylindrical part 31 has a certain degree of wall thickness, the protrusions 41, 41 are formed on the inner circumference of the rubber cylinder as the elastic cylinder 4. However, if the cylindrical part is thin, This protrusion is not always necessary. This is because the elastic tube 4 is compressed and deformed by being pushed in, and as a result, the inner peripheral portion of the elastic tube 4 is partially protrudingly deformed and brought into pressure contact with the piping.

Further, in the above embodiment, since the cylindrical portion 31 and the rubber tube are engaged with the square holes 32, 32 and the protrusions 41, 41, the rubber tube can be easily removed for repair etc. There is.

In FIG. 1, reference numeral 8 denotes an O-ring for sealing, which prevents moisture from entering the wall board 1.

Although the case where the elastic tube 4 is a rubber tube has been described above, other materials can be used as long as they have similar elasticity. It can also be used when connecting something other than a gas tank.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of the embodiment of the present invention in use, FIG. 2 is an exploded view of its main parts, and FIG. 3 is an explanatory view of a conventional example. 1...Wall plate, 11...Through hole, 2...Piping, 3...
...Decoration plate, 31...Cylinder part, 4...Elastic tube.

Claims (1)

[Scope of utility model registration request] In a device for fixing piping that penetrates the wall plate 1 to the wall plate 1, a threaded portion 23 is provided on a part of the pipe that protrudes from the wall plate 1, and a screw member is screwed into this threaded portion. A predetermined gap is provided between the through hole 11 and the pipe 2, and the cylindrical part 31 is inserted into this gap.
A decorative plate 3 comprising: is interposed between the screw member and the wall plate 1, and an elastic cylinder 4 having a tapered outer circumferential surface that expands toward the surface of the wall plate 1 on the outer periphery of the cylinder portion. A pipe fixing device in which the inner peripheral wall of the elastic cylinder 4 is partially penetrated and exposed to the inner peripheral side of the cylinder part 31, and the maximum diameter part of the elastic cylinder is larger than the diameter of the through hole 11.