JPH0115983Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of application of the invention] The invention is a method of connecting a connecting pipe (hereinafter referred to as a double connecting pipe) between a certain distance, such as connecting the circulation port pipe of a bathtub and the connecting pipe of a bathtub. This invention relates to a tightening device for fixing to a pipe.

[Background of the idea]

To explain the conventionally used method of tightening connecting pipes when connecting a bathtub and a bathtub,
As shown in the figure, a flexible connecting pipe F is fitted between the circulation port pipe C led out from the heat exchanger B installed in the bathtub A and the connecting pipe E fixed to the bathtub D as shown in Figure 2. In this method, the outer periphery of the inserted part is tightened with a tightening band G. The work in this case is to first fit each connecting pipe F into the circulation port pipe C and secure it with a tightening band G, then move the bathtub A to the bathtub D side and insert the connecting pipe F into the connecting pipe. E, and tighten the outer periphery of the inserted portion with a tightening band G. However, with the above method, it is not easy to fix the individual tightening bands when the distance L between the pipes is short or when the distance S between the bathtub A and the bathtub D is narrow. Furthermore, it is necessary to be careful not to drop the tightening band G when inserting the connecting tube F, and the workability of tightening the connecting tube is also extremely poor. The process for removing the connecting pipe is exactly the same as above.

[Purpose of invention]

SUMMARY OF THE INVENTION The present invention aims to overcome the above-mentioned problems and to provide a tightening device for double connecting pipes that can easily tighten or loosen the connecting pipes by advancing and retracting a single feed screw.

[Summary of the idea]

In order to achieve the above-mentioned purpose, the present invention
A pair of tightening wires having rings at both ends that fit onto the connecting tubes, a box-shaped moving body, a base having a screw hole, and a feed screw constitute a double connecting tube tightening device, and the wire ring The movable body can be moved away from or approached the base by fitting the wire into the connecting pipe and hooking both ends of the wire between the movable body and the base and advancing and retreating the feed screw screwed into the base. This allows the wire to be tensioned or relaxed.

[Example of idea]

An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 3 is a three-sided view of the tightening device of the present invention attached to two connecting pipes, in which A is a front view, B is a side view, and C is a bottom view. In addition, in Figure 3, the first
Parts that are the same as those shown in the figures are designated by the same reference numerals.

In the figure, reference numerals 1 and 1' denote a pair of elastic tightening wires, and connecting pipes F are attached to both ends of the straight part, with the distance L between the two pipes being the center of each.
Forming a ring 1a whose inner diameter is the outer diameter of the insertion part,
Moreover, the terminals thereof are molded into opposing hooks 1b. 2 is a moving body, which has a notch 2a on one side in the longitudinal direction.
It has a box shape with a bent piece 2b on the notch 2a side.
is provided with a small hole 2f for hooking the one hook 1b, the other side surface 2c has a through hole 2d for inserting a small diameter portion 4c at the tip of the feed screw 4, which will be described later, and the bottom surface is provided with the aforementioned tightening hole 2d. A cutting tab 2e is formed to clamp the straight portion of the wire. Reference numeral 3 denotes a shaped base having a notch 3a in the lower center, a screw hole 3b in the center for screwing into a feed screw 4, which will be described later, and small holes 3c in both edges for hooking the other hook 1b.
It is equipped with The feed screw 4 includes a rotating head 4a, a threaded portion 4b, and a small diameter portion 4c at the tip.
5 is a washer inserted into the small diameter portion 4c.

Since the tightening device of the present invention has the above-mentioned configuration, first, the feed screw 4 is fully screwed back to the base 3, and the tightening wires 1, 1', which are separated, are fitted into the connecting pipe F. Insert into the insertion site and move the moving body 2
Apply the wires 1, 1' to the tightening wires 1, 1', and insert the tightening wires 1, 1' between the cut tabs 2e.
Move the moving body 2 and insert one hook 1b into the small hole 2f.
hook them respectively. Next, the other hooks 1b are hooked into the small holes 3c of the base 3, and the washers 5 are attached to the small diameter portions 4c.
With the feed screw 4 still inserted, screw the small diameter portion 4c into the through hole 2d of the movable body 2,
Advance the feed screw 4 a little further to prevent the device from disassembling.

To connect the two pipes together using the connecting pipe F, for example, fit one fitting part of the connecting pipe F into the circulation port pipe C, and while moving the bath pot A as described at the beginning, insert the other into the connecting pipe E. After fitting the insertion part, if the feed screw 4 is screwed in appropriately using an appropriate hand tool, the gap between the movable body 2 and the base 3 will be opened, and the connecting pipe F will be tightened to the pipes C and E. be done. Connecting pipe F
It can be removed by loosening the feed screw 4. In addition, in the above-mentioned configuration, the notches 2a and 3a are provided on the connecting pipe F.
This is to apply to a device having a bellows as shown in the figure, and if the connecting pipe F is a straight pipe, there is no need to provide the notches 2a and 3a.

[Effect of idea]

As mentioned above, the tightening device of the present invention can easily tighten or loosen the double connection pipe by moving one feed screw forward or backward, so it improves work efficiency and is particularly effective in areas where the spacing is narrow. is large.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram showing the state of connection between a bathtub and a bathtub, and FIG. 2 is a partially sectional side view of a conventional example in which section M in FIG. 1 is enlarged. Figures 3A, 3B and 3C are three side views of an embodiment of the present invention attached to two connecting pipes. 1, 1'... Tightening wire, 1a... Ring, 1
b...Hook, 2...Moving body, 2a, 3a...Notch, 2b...Bent piece, 2c...Side surface, 2d...Through hole, 2e...Cut hole, 2f...Small hole, 3 ...Base, 3b...Screw, 3c...Small hole, 4...Feed screw, 4a...Head, 4b...Threaded portion, 4c...Small diameter portion, 5...Washer.

Claims (1)

[Scope of utility model registration request] Continuing from the straight part, there are two rings at both ends that circumscribe the connecting pipe with the center distance of the pipes to be joined as the center, and a pair of tightening wires with the ends of the rings formed into opposing hooks, and one end face. A box-shaped box having a small hole for hooking one of the hooks, a through hole for inserting the small diameter portion of the tip of the feed screw on the opposite side, and a means for holding the straight portion of the tightening wire on the bottom surface. a movable body, a base having a small hole for hooking the other of the hooks and a screw hole for screwing into the screw of the feed screw; A double connection pipe tightening device comprising: a feed screw that comes into contact with a through hole of a movable body.