Buried gas switch for water heater

Abstract

A switch box comprises a box cover, a bottom box, two extension boxes and a limiting plate, the box cover is buckled on the top of the bottom box, the two extension boxes are respectively connected with two ends of the bottom box in a sliding mode along the vertical direction, the box cover tightly presses the extension boxes, and the box cover, the bottom box and the extension boxes form a box body which is through in the horizontal direction. A plurality of parallel sliding grooves are symmetrically formed in the side face of the extension box, and the limiting plates are symmetrically arranged and slidably installed in the sliding grooves. The adapter tube is mounted in the switch box; an inlet of the valve is in threaded connection with an outlet of the adapter pipe. The switch box in the concealed gas switch is composed of the box cover, the bottom box, the extension box and the limiting plate, the bottom box and the extension box are connected in a sliding mode, the switch box is installed in a wall groove, the appropriate sliding groove height can be selected according to the groove depth, the limiting plate is installed in the sliding groove to be used for controlling the concealed depth, and the limiting plate is used for achieving the pre-fixing effect, so that the concealed gas switch is convenient to use. The switch box is convenient to combine and install and firm in matching, and can be installed according to the groove depth.

Description

Technical Field

[0001] The utility model relates to the technical field of gas switches, in particular to a concealed gas switch for a water heater. Background Art

[0002] In the decoration industry, in order to cater to the public's requirements for aesthetics or concealment, the gas switch of the water heater is usually installed in the wall in a concealed manner to connect the gas pipeline and the water heater.

[0003] In the prior art, for example, Chinese utility model patent publication number CN212536838U, entitled "A Concealed Gas Switch for Water Heaters," uses a concealed box to install the gas valve. This box lacks a positioning function, making it difficult to control the installation depth. Furthermore, during assembly, the base box and adapter utilize an axial plug-in design. While this facilitates assembly and disassembly, it also presents the problem of easy detachment, making the assembled box unstable and unreliable. Utility Model Content

[0004] The utility model aims to provide a concealed gas switch for a water heater, so as to solve the problems that the box body of the existing concealed gas switch for water heaters has no positioning function, the installation depth is difficult to control during installation, and the box body is not stable and reliable enough.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A concealed gas switch for a water heater, comprising:

[0007] The switch box includes a box cover, a bottom box, an extension box and a limit plate. The box cover is buckled on the top of the bottom box. The two extension boxes are slidably connected to the two ends of the bottom box in the vertical direction. The box cover presses the extension boxes tightly. The box cover, the bottom box and the extension boxes constitute a box body that is through in the horizontal direction.

[0008] The side surfaces of the extension box are symmetrically provided with a plurality of parallel sliding grooves, and the limiting plates are symmetrically provided and slidably installed in the sliding grooves;

[0009] A transfer tube installed in the switch box;

[0010] A valve, the inlet of the valve is threadedly connected to the outlet of the transfer tube.

[0011] A further technical solution is that: the switch box is provided with an inspection vent.

[0012] A further technical solution is: the valve includes a ball valve, a knob and an elastic member, the inlet of the ball valve is threadedly connected to the outlet of the transfer tube, the knob is slidably connected to the valve stem of the ball valve, and the elastic member presses against the knob and the valve stem.

[0013] A further technical solution is: the elastic member is a U-shaped spring sheet.

[0014] A further technical solution is characterized in that the outer end of the elastic member is fixed to the knob by a screw.

[0015] A further technical solution is that the ball valve is connected to the transfer tube via an extension sleeve.

[0016] A further technical solution is that an anti-slip convex strip and an anti-slip groove are provided in the sliding structure between the base box and the extension box, and the anti-slip convex strip and the anti-slip groove are adapted to each other.

[0017] A further technical solution is that the cross section of the matching portion of the sliding structure between the extension box and the limiting plate is T-shaped.

[0018] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0019] The utility model proposes a concealed gas switch for a water heater, wherein the switch box in the concealed gas switch consists of a box cover, a base box, an extension box and a limit plate, the base box and the extension box are slidably connected, and the box cover is used to press in the only sliding disengagement direction, effectively preventing the separation between the components, and when the switch box is installed in a wall groove, a suitable slide groove height can be selected according to the groove depth, and the limit plate is installed in the slide groove to control the concealed burial depth, and the limit plate is used to achieve a pre-fixing effect, the switch box is easy to assemble and install, has a firm fit, and can be installed according to the groove depth. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a structural diagram of a concealed gas switch for a water heater.

[0021] Figure 2 For this utility model Figure 1 Schematic diagram of the half-section perspective structure.

[0022] Figure 3 For this utility model Figure 1 Schematic diagram of the switch box.

[0023] Figure numerals: 1. switch box; 2. adapter tube; 3. valve; 4. slide groove; 5. maintenance vent; 6. ball valve; 7. knob; 8. elastic part; 9. screw; 10. extension sleeve; 11. box cover; 12. bottom box; 13. extension box; 14. limit plate; 15. anti-slip ridge; 16. anti-slip groove. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0028] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the present invention is typically placed when in use, or are the orientations or positional relationships commonly understood by those skilled in the art. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances. Example

[0030] This embodiment Figure 1 and Figure 2 As shown, a concealed gas switch for a water heater comprises:

[0031] The switch box 1 includes a box cover 11, a bottom box 12, an extension box 13 and a limit plate 14. The box cover 11 is buckled on the top of the bottom box 12. The two extension boxes 13 are slidably connected to the two ends of the bottom box 12 in the vertical direction. The box cover 11 presses the extension box 13 tightly. The box cover 11, the bottom box 12 and the extension box 13 constitute a box body that is through in the horizontal direction; wherein,

[0032] The side surface of the extension box 13 is symmetrically provided with a plurality of parallel sliding grooves 4, and the limiting plates 14 are symmetrically provided and slidably installed in the sliding grooves 4;

[0033] Transfer tube 2, which is installed in the switch box 1;

[0034] Valve 3, the inlet of valve 3 is threadedly connected to the outlet of transfer tube 2.

[0035] The installation process of the concealed gas switch is as follows: combine the installation and assembly requirements of the base box 12 and the extension box 13, then fix the transfer pipe 2 in the base box 12, then fix the valve 3 and the transfer pipe 2, and finally select a suitable slide groove 4 according to the depth of the wall groove, and install the two limit plates 14 symmetrically and slidingly in the slide groove 4. Rely on these two limit plates 14 to fix the switch box 1 in the appropriate depth of the wall groove, and the depth of the switch box 1 will not be affected by the thickness of the cement. Finally, buckle the box cover 11 on the base box 12 to complete the installation.

[0036] Preferably, the switch box 1 is provided with an inspection vent 5 .

[0037] After tiling, maintenance can be carried out with the help of the maintenance vents 5. Example

[0038] Based on the above embodiment, this embodiment shows that the valve 3 includes a ball valve 6, a knob 7 and an elastic member 8, the inlet of the ball valve 6 is threadedly connected to the outlet of the transfer tube 2, the knob 7 is slidingly connected to the valve stem of the ball valve 6, and the elastic member 8 presses the knob 7 and the valve stem tightly.

[0039] The end of the knob 7 that matches the valve stem of the ball valve 6 is detachably plugged into the valve stem, and the elastic member 8 is filled in the sliding gap between the knob 7 and the valve stem to tighten the knob 7 and the valve stem to prevent the knob 7 from shaking or detaching.

[0040] It is worth noting that other valves that can cut off, connect and control the flow can also replace the ball valve 3.

[0041] Preferably, the elastic member 8 is a U-shaped spring leaf.

[0042] One end of the U-shaped spring sheet is located in the sliding gap between the knob 7 and the valve stem, and is used to press the knob 7 and the valve stem tightly to prevent the knob 7 from shaking or falling off.

[0043] Preferably, the outer end of the elastic member 8 is fixed to the knob 7 via a screw 9 .

[0044] The elastic member 8 is pre-fixed to the knob 7 by means of screws 9, which facilitates assembly of the switch and disassembly, maintenance and cleaning during the subsequent rotation of the knob 7.

[0045] Preferably, the ball valve 6 is connected to the transfer tube 2 via an extension sleeve 10 .

[0046] The extension sleeve 10 is used to adapt to different installation depths of the transfer tube 2 in the switch box 1 , thereby facilitating the installation of the valve 3 . Example

[0047] On the basis of the above embodiment, this embodiment shows that an anti-slip rib 15 and an anti-slip groove 16 are provided in the sliding structure between the base box 12 and the extension box 13, and the anti-slip rib 15 and the anti-slip groove 16 are adapted to each other.

[0048] The anti-slip ridges 15 and the anti-slip grooves 16 can prevent the bottom box 12 and the extension box 13 from being detached in the non-sliding direction, thereby ensuring the stability of the fitting of the components.

[0049] Preferably, the cross section of the matching portion of the sliding structure between the extension box 13 and the limiting plate 14 is T-shaped.

[0050] The use of T-shaped slides and T-shaped slides can prevent the device from falling off.

[0051] Preferably, the sliding structure gaps between the bottom box 12 and the extension box 13 and between the extension box 13 and the limiting plate 14 are filled with glue for fixation.

[0052] During production, the base box 12, extension box 13 and limit plate 14 can be produced separately, with a simple mold and low cost. The produced components can then be pre-assembled before installation or on-site, and glue can be used to complete the final fixation.

[0053] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A concealed gas switch for a water heater, characterized in that: include: A switch box (1), the switch box (1) comprising a box cover (11), a bottom box (12), an extension box (13) and a limit plate (14), the box cover (11) being buckled onto the top of the bottom box (12), the two extension boxes (13) being slidably connected to the two ends of the bottom box (12) in a vertical direction, the box cover (11) pressing the extension boxes (13), the box cover (11), the bottom box (12) and the extension boxes (13) forming a box body that is through-connected in a horizontal direction; wherein, The side surfaces of the extension box (13) are symmetrically provided with a plurality of parallel sliding grooves (4), and the limiting plates (14) are symmetrically provided and slidably mounted in the sliding grooves (4); A transfer tube (2), the transfer tube (2) being installed in the switch box (1); A valve (3), wherein the inlet of the valve (3) is threadedly connected to the outlet of the transfer tube (2).

2. The concealed gas switch for water heater according to claim 1, characterized in that: The switch box (1) is provided with an inspection vent hole (5).

3. The concealed gas switch for water heater according to claim 1, characterized in that: The valve (3) comprises a ball valve (6), a knob (7) and an elastic member (8); the inlet of the ball valve (6) is threadedly connected to the outlet of the transfer tube (2); the knob (7) is slidably connected to the valve stem of the ball valve (6); and the elastic member (8) presses against the knob (7) and the valve stem.

4. The concealed gas switch for water heater according to claim 3, characterized in that: The elastic member (8) is a U-shaped spring sheet.

5. The concealed gas switch for water heater according to any one of claims 3 or 4, characterized in that: The outer end of the elastic member (8) is fixed to the knob (7) via a screw (9).

6. The concealed gas switch for water heater according to claim 3, characterized in that: The ball valve (6) is connected to the transfer tube (2) via an extension sleeve (10).

7. The concealed gas switch for water heater according to claim 1, characterized in that: An anti-slip convex strip (15) and an anti-slip groove (16) are provided in the sliding structure between the base box (12) and the extension box (13), and the anti-slip convex strip (15) and the anti-slip groove (16) are adapted to each other.

8. The concealed gas switch for water heater according to claim 1, characterized in that: The cross section of the matching portion of the sliding structure between the extension box (13) and the limiting plate (14) is T-shaped.

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