JPH0217614Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is a bathtub that is removably attached to the suction port of the circulation pipe in a bathtub with a forced circulation function using a pump added to a natural circulation bathtub. Regarding filters for circulation pipes.

(Prior art) Unlike the conventional method of inserting a filter into the suction port of a bathtub, Utility Model Application Publication No. 148650/1986 has a structure in which a water vapor preventer is attached to a circulation pipe using a rubber insert holder provided in a cap. The structure is such that the piece is pushed into the circulation pipe and stopped.

(Problems to be solved by the invention) Since there is no means for forcibly expanding the rubber pieces in the mounting structure of the hot water leak preventer, it is difficult to obtain a sufficient holding force and the circulation pipe corresponding to the rubber pieces is difficult to obtain. It is difficult to increase the permissible size of the aperture size, and since the circulation apertures of commercially available bathtubs vary, there are problems such as the need to prepare several types of bathtubs with different apertures.

This idea utilizes the bending and stretching of a leaf spring that is bent into an appropriate shape on the rear holding part of the mounting body, which has a cap fitted with a filter attached to the front, and expands the diameter of both ends of the leaf spring by tightening screws, etc. To solve the problem by providing a circulation filter which is fixed to a circulation pipe and can be securely fixed even if the diameters of the circulation pipes of commercially available bathtubs are different.

(Means for Solving the Problems) In order to solve the problems of the conventional methods, this invention has a mounting body 3 which is removably equipped with a cap 2 into which a filter is inserted to cover the suction port of the circulation pipe 1 for a bathtub. A holding part 4 to be inserted into the circulation pipe 1 is formed and the holding part 4 is
A leaf spring 5 having a bending part 5a that can be expanded in the radial direction is placed facing the leaf spring 5, and the leaf spring 5 is fixed to the holding part 4 with a screw 6 or the like.
The holding part 4 equipped with the leaf spring 5 is inserted into the circulation pipe 1, and the screws 6 of the holding part 4 are tightened by appropriate means, so that the bending part 5a of the leaf spring 5 is screwed onto the bottom plate 4a of the leaf spring 5. The leaf spring 5 comes into contact with the bottom plate 4a of the holding part 4.
The pressing force between the leaf spring 5 and the holding part 4 is increased by pulling or pushing the center of the leaf spring 5.
The purpose of the present invention is to provide a technical means in which the bending portion 5a is raised to expand its radial length, and both end surfaces thereof are secured and fixed to the circulation pipe 1.

(Function) This device inserts the holding part 4 equipped with the plate spring 5 of the mounting body 3 into the suction port of the circulation pipe 1 of the bathtub A, and
etc., and pull or push in the center of the leaf spring 5 to spread the bending part 5a of the leaf spring 5 and securely fix both ends to the circulation pipe 1, and attach a filter to the front side of the mounting body 3. A cap 2, which is stored or stretched, is fitted to catch hair-related dirt and the like sucked into the circulation pipe 1.

(Example) This invention will be described below based on an example shown in the drawings.

Fig. 5 shows a bath heating device to which the circulating pipe filter of this invention is applied, where A is a bathtub, B is a bathtub equipped with a heat exchanger 9 and a gas burner 10, and 1
7 is a circulation pipe connecting the bathtub A and the bathtub B, 7 is a bypass pipe installed across the heat exchanger 9, and 8 is a forced circulation pump.

Next, in FIGS. 1 to 3, 2 is the circulation pipe 1
This is a cap into which a filter with a diameter larger than the diameter of the suction port is inserted, and a large number of openings 11 are provided on the front surface and the circumferential surface, and a lattice-shaped wire mesh filter 12 is installed in the openings 11 to prevent the inflow of hair-related dirt, etc. The cap 2 has a locking claw 1 on the inner peripheral end.
3 are integrally formed. Reference numeral 3 denotes a circular mounting body which is fitted and attached to the circulation pipe 1 and into which the cap 2 is fitted, which has an inlet 14 bored inside and engages with a locking pawl 13 on its outer periphery. An engaging protrusion 15 is formed, and a holding part 4 having a width slightly narrower than the diameter of the circulation pipe 1 and having an insertion hole 16 on the side is integrally formed at the rear of the mounting body 3. bottom plate 4
A plate spring 5 having a bending portion 5a that can be expanded in the radial direction is screwed with a screw 6 in a state where the plate spring 5 is opposed to each other.
The inner surfaces of the both side bending parts 5a of the leaf spring 5 are brought into contact with the corners of the holder 4, and by retightening the screws 6, the both side bending parts 5a of the leaf spring 5 are raised and expanded in the radial direction, and both end surfaces are connected to the circulation pipe. Make it so that it can be attached to the inner surface of 1. In this embodiment, the holding part 4 of the mounting body 3 is a U-shaped frame body with projections 4b integrally formed on both upper and lower sides of the bottom plate 4a for guiding the bending and stretching of the leaf spring, and the leaf spring 5 has both sides inclined. The leaf spring 5 is bent into a chevron shape, and the leaf spring 5 is arranged between the projecting pieces 4b of the frame. The screw 6 inserted through the through hole 4d in the bottom plate 4a of the frame body is connected to the plate spring 5.
screw into the screw hole 5b drilled in the center of the plate spring 5, and tighten the screw 6 to bring the inclined bending parts 5a on both sides of the leaf spring 5 into contact with the upper and lower corners 4c of the bottom plate 4a of the holding part 4,
By pulling the center of the leaf spring 5, the double bending portion 5a rises and expands in the radial direction. In addition, 17 is a handle for attaching and detaching the cap 2, and 18 is the circulation pipe 1 and the bathtub A.
This is a packing inserted between the side wall 19 of the

Since this device has the above-described structure, when attaching the circulation pipe filter to the suction port of the circulation pipe of a bathtub, the holding part 4 of the mounting body 3 is inserted into the circulation pipe 1 and is brought close to or in contact with the circulation pipe 1. Tighten the screw 6 to pull the center of the leaf spring 5 and bend the bent portions 5 on both sides.
a to the corner 4c, and further tighten the screws 6 and pull them together, so that both side bending portions 5a of the leaf spring 5 are removed.
The plate spring 5 is warped to expand its radial length, and both end surfaces of the leaf spring 5 are secured and fixed to the inner surface of the circulation pipe 1. After that, a cap 2 with a filter attached is fitted to the front side of the mounting body 3. and install it.

Further, FIG. 4 shows an embodiment in which a leaf spring 5 is screwed onto the front side of the bottom plate 4a of the holding part 4. A plate spring 5 formed in a substantially circular arc shape and bendable is inserted into the insertion hole 16, and is integrally erected forward at the left and right ends between guide protrusions 4f provided at the top and bottom front of the bottom plate 4a of the holding part 4. Opposite the formed protrusions 4e, 4e, screw 6'
is passed through the leaf spring 5, screwed into the screw hole 4g, and the front surface of the leaf spring 5 is pressed by the stepped portion 6a' of the screw 6' to tighten the leaf spring 5. 4
e, 4e, and by bending the curve at the center and elongating it, the diameter of the distal end is enlarged, and it is securely fixed to the inner wall of the circulation pipe 1.

(Effects of the invention) According to this invention, even though the diameters of circulation pipes of commercially available bathtubs vary, for example, from 38φ to 45φ,
By simply tightening the leaf spring with screws to the mounting body, both sides of the leaf spring are forcibly warped and expanded in the radial direction, and both end surfaces can be securely fixed to the inner surface of the circulation pipe. There is no chance that the filter will come off. In addition, the cap with the filter inserted is removably fitted to the mounting body, so the filter of this cap can catch hair-related debris and prevent it from flowing into the circulation pump, etc. If the cap becomes clogged or damaged, the cap can be removed from the mounting body and easily cleaned or replaced with a new one.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view showing a circulating pipe filter of this invention, Fig. 2 is a partially cutaway front view of the same, Fig. 3 is an exploded perspective view showing an example of a combination of a mounting body and a leaf spring; FIG. 4 is an exploded perspective view showing an example of a different combination of a mounting body and a leaf spring, and FIG. 5 is a side view of the mounting body attached to a suction port of a circulation pipe of a bathtub. 1... Circulation pipe for bathtub, 2... Cap, 3...
...Mounting body, 4...Holding section, 4a...Bottom plate, 5...
Leaf spring, 5a... bending part, 6... screw, 12...
Filter, A...bathtub, B...bath pot.

Claims (1)

[Scope of utility model registration request] A holding part 4 is formed by inserting into a mounting body 3 which is removably equipped with a cap 2 into which a filter is inserted to cover the suction port of the circulation pipe 1 for the bath kettle of the bathtub A.
A leaf spring 5 having a bending part that can be expanded in the radial direction is screwed in with a screw 6 or the like, and the screw 6 or the like is tightened to press the leaf spring 5 against the bottom plate 4a of the holding part 4 to expand the diameter of both ends. A filter for a circulation pipe of a bathtub, characterized in that it can be secured and fixed to a circulation pipe 1.