JPH0142785Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial field of application) This invention relates to a front cover for a horizontal water heater installed in high-rise housing complexes, etc.

(Prior technology) In places with narrow indoor space, such as in high-rise apartment buildings, it is desirable to install the water heater horizontally in a hole in the wall. It is a common practice to do so.

(Problems to be Solved by the Invention) The above-mentioned screw fastening method not only looks unsightly, but also is troublesome to install and remove. Therefore, this invention provides a front cover for a water heater that can be easily and accurately attached and detached with a one-touch operation.

(Means for solving the problem) In order to solve the above problem, this invention has been developed to install functional parts such as a combustion chamber and a heat exchanger in an outer shell B that is inserted and fixed from the side into a mounting hole 1 of a wall A. In a water heater in which an internal structure C that integrates the internal structure C is inserted while maintaining a fixed relative position, the periphery of the proximal opening 2 of the outer body B is placed on both sides of the upper inner surface of the front cover D that covers the proximal opening insertion part. A hook E is provided, which has a hook piece 4 that hooks on the upper end 3a of the convex flange 3 formed in the flange 3, and a holding piece 5 that presses against both sides 3b of the convex flange 3. Lower end 3 of shaped flange 3
Adopts a technical means characterized in that a locking metal fitting F is provided on c with a guide piece 6a for facilitating engagement and disengagement, and a locking piece 6 that elastically locks on the lower end 3c. That's what I did.

(Function) When attaching the front cover D, first, attach the hook pieces 4 of the hook E provided on both sides of the upper inner surface of the front cover D to the convex shape formed on the periphery of the proximal opening 2 of the outer body B. Upper end 3a of flange 3
and press the holding pieces 5 against both sides 3b of the convex flange 3 in a holding manner, and then push the lower part of the front cover D inward to release the lock provided at the lower part of the inner surface thereof. The locking piece 6 of the metal fitting F elastically locks onto the lower end 3c of the convex flange 3. At this time, the engagement can be easily performed by the guiding action of the tip guide piece 6a. Next, when removing the front cover D, first pull the lower part of the front cover D toward you to remove the locking piece 6 of the locking fitting F from the lower end 3c of the convex flange 3, and then remove the front cover D. All you have to do is lift it up a little and remove the hook piece 4 of the hook E from the upper end 3a of the convex flange 3.

(Embodiment) An embodiment of the front cover of a water heater according to this invention will be described below based on the drawings.

In the drawing, A is a wall such as a high-rise apartment building, 1
2 is a mounting hole drilled in wall A at the location where the water heater is installed; The body is inserted into the mounting hole 1 from the side and horizontally installed at a predetermined position by means of mounting and fixing means, which will be described later. C is the internal structure of the water heater, in which functional parts such as a combustion chamber 9, a heat exchanger 10, a burner 11, an air supply fan 12, a flasher 13, and an electrical box 14 are connected to piping connections 15, support legs 16, etc. By simply sliding and inserting this internal structure C into the outer shell B from the base end opening 2 while supporting it with the supporting legs 16, the air supply of the outer shell B can be completed. A partition plate 18 fixed between the port 7 and the exhaust port 8 and a partition plate 19 fixed to the heat exchanger 10 of the internal structure C are the sealing material 2.
The base plate 17 of the internal structure C is pressed onto the engaging pieces 21 fixed to both sides of the inner surface of the proximal end of the outer shell B. The stopper piece 22 provided at the outer shell B hits the stopper piece 22, and by fixing these with the setscrews 23, the internal structure C is firmly held so that it does not escape from the outer shell B, and the internal structure C is connected to the outer shell B in various ways as a water heater. It is designed to be able to be installed internally while maintaining a certain relative position without impairing functionality. D is a front cover that covers the proximal opening insertion portion of the outer body B, 3 is a convex flange integrally formed on the periphery of the proximal opening 2 of the outer body B, and a lid 24 is attached to the proximal opening 2. It is formed using the mounting flange part of. Reference numeral E designates hook fittings provided on both sides of the upper inner surface of the front cover D, including a hook piece 4 that is hooked onto and held on the upper end 3a of the convex flange 3, and a hook piece 4 that is held on both sides 3b of the convex flange 3 in a holding manner. It is provided with a holding piece 5 that presses against it. F is a locking metal fitting provided on both sides of the lower inner surface of the front cover D, which elastically locks onto the lower end 3c of the convex flange 3, and has a locking piece 6 formed with a guide piece 6a at its tip. It is best to use a leaf spring or other material with restoring force. The locking metal fittings F may be provided on both sides of the lower inner surface of the front cover D as in the embodiment, or may be provided at one location in the center thereof. The means for attaching and fixing the outer shell B to the wall A is to attach a sealing material 28 to a mounting bolt 27, which is fixed to the wall A via a metal frame 26, with a mounting flange 25 provided on the outer shell B so that its mounting position can be changed. A double seal structure is provided in which a sealing material 29 is pressed by a presser plate 30 at the attachment portion between the attachment flange 25 and the outer body B. 31 is a sealing material interposed at the joint between the outer shell B and the internal structure C, 32 is a water supply pipe, 33 is a gas pipe, 34 is a hot water supply pipe, and each of these pipes 32, 33, and 34 is a pipe of the base plate 17. It is piped to each functional part via the connecting part 15. The convex flange 3 may be formed by enlarging the flange portion of the outer body B, and the front cover D may be attached to and detached from the convex flange 3.

(Effect of the invention) According to this invention, when attaching the front cover D, the hook pieces 4 of the hook E provided on both sides of the upper inner surface of the front cover D are formed on the periphery of the proximal opening 2 of the outer body B. Upper end 3a of convex flange 3
At the same time, the holding pieces 5 press against both sides 3b of the convex flange 3 in a holding manner to hold the outer body B.
The mounting position of the front cover D relative to the proximal opening insertion portion is determined. After that, when the lower part of the front cover D is pushed inward, the locking pieces 6 of the locking fittings F provided on both sides of the inner lower part of the front cover D are moved to the convex flange 3.
It is elastically engaged with the lower end 3c of the holder along with the guiding action of the tip guide piece 6a, and can be easily and reliably attached and fixed. Next, when removing the front cover D, pull the lower part of the front cover D toward you, contrary to the above-mentioned installation process, and the locking piece 6 of the locking fitting F will be attached to the lower end 3 of the convex flange 3.
Then, lift the front cover D a little and remove the hook piece 4 of the hook E from the upper end 3a of the convex flange 3, and pull the front cover D toward you. The holding of both sides 3b of the convex flange 3 by the holding pieces 5 is released, and the removal can be easily and reliably performed. Since the front cover can be attached and detached with a single touch due to its simple structure and operation, it has high practical value, especially when applied to horizontal water heaters that are installed using holes in the walls, such as in high-rise apartment complexes. be.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view showing an embodiment of the front cover of a water heater according to this invention, FIG. 2 is a cross-sectional view, and FIG. 3 is a perspective view of the main parts. A...Wall, 1...Mounting hole, B...Outer body, C...
Internal structure, 2... Proximal opening, D... Front cover, 3... Convex flange, 3a... Upper end, 3
b...both sides, 3c...lower end, E...hanging metal fitting, 4...hanging piece, 5...holding piece, F...locking metal fitting, 6a...guide piece, 6...locking Piece.

Claims (1)

[Scope of utility model registration request] In a water heater, an internal structure C that integrates functional parts such as a combustion chamber and a heat exchanger is inserted into an outer body B which is inserted and fixed from the side into a mounting hole 1 in a wall A, while maintaining a fixed relative position. A hook piece 4 hooked onto the upper end 3a of the convex flange 3 formed at the periphery of the proximal opening 2 of the outer body B on both sides of the inner surface upper part of the front cover D that covers the end opening insertion part and both sides of the convex flange 3. A hook E is provided with a holding piece 5 that presses against the portion 3b, and a guide piece 6a and a guide piece 6a for facilitating engagement and disengagement with the lower end 3c of the convex flange 3 are provided at the lower part of the inner surface. A front cover for a water heater, characterized in that a locking metal fitting F is provided with a locking piece 6 that elastically locks the front cover.