Shell structure of drain valve

Abstract

The shell structure of the drain valve comprises a body and a bottom plate, and the bottom plate is arranged in the lower end of the body. An elastic piece is arranged on the peripheral side of the bottom plate, a clamping protruding block is arranged on the peripheral wall of the elastic piece, a connecting piece is arranged on the inner peripheral wall of the lower end of the body, a clamping opening is formed in the connecting piece, and the clamping protruding block can be matched with the clamping opening in a clamping mode so that the body and the bottom plate can be connected together. The structure enables the appearance surface of the drain valve to have no elastic buckle hole, and the drain valve is stable in water discharge and easy to disassemble and assemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to a casing structure of drain valve, be applicable to water tank accessory. BACKGROUND

[0002] The bottom plate of the existing barrel type drain valve is mostly elastic buckle structure, that is, a hole is opened on the side of the body, the elastic buckle of the bottom plate is arranged on the upper part of the bottom plate and is clamped in the side hole of the body through the elastic buckle, and such structure has three problems, one is that the opening of the hole on the side of the body affects the appearance of the drain valve, two is that the elastic buckle is arranged on the upper part of the bottom plate, and water in the drain valve is easy to flow out from the side hole of the body, which affects the drainage capacity and stability of the drain valve, and three is that the bottom plate is not easy to disassemble, and the appearance of the body is easy to be scratched when disassembled, which is not conducive to repair. SUMMARY

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a casing structure of drain valve.

[0004] The utility model discloses a casing structure of drain valve through the following technical scheme to realize:

[0005] A casing structure of drain valve, including body and bottom plate, the bottom plate is arranged inside the lower end of the body, the outer circumferential side of the bottom plate is provided with the elastic sheet, the outer circumferential wall of the elastic sheet is provided with the clamping lug, the bottom plate in the inner circumferential of the clamping lug includes the first connecting ring and the second connecting ring that distribute up and down, the first connecting ring and the second connecting ring form the first inclined plane between, the lower circumferential inner circumferential wall of the body includes the first annular inner circumferential wall and the second annular inner circumferential wall that distribute up and down, the first annular inner circumferential wall and the second annular inner circumferential wall form the second inclined plane between, the outer circumferential wall of the first connecting ring can be adapted with the first annular inner circumferential wall, the outer circumferential wall of the second connecting ring can be adapted with the second annular inner circumferential wall, the first inclined plane can be adapted with the second inclined plane.

[0006] In the utility model embodiment, the lower end inner circumferential wall of the body is provided with the connecting sheet, the connecting sheet is provided with the clamping interface, the clamping lug can be clamped with the clamping interface, so that the body and the bottom plate are connected together.

[0007] In the utility model embodiment, the lower end inner circumferential wall of the body is inwardly protruding and forms the connecting sheet.

[0008] In the utility model embodiment, the lower end circumferential side of the bottom plate is provided with the recessed part, the recessed part can be adapted with the protruding connecting sheet, and the elastic sheet is arranged in the recessed part.

[0009] In the utility model embodiment, the lower end inner circumferential wall of the body is annularly provided with at least two connecting sheets, and the lower end circumferential side of the bottom plate is annularly provided with the recessed part that can be adapted with the connecting sheet.

[0010] The outer diameter of the first connecting ring is smaller than the outer diameter of the second connecting ring, and the inner diameter of the first annular inner peripheral wall is smaller than the inner diameter of the second annular inner peripheral wall.

[0011] In the embodiment of the utility model, the outer side of the connecting plate can be axially aligned with the outer peripheral wall of the first connecting ring.

[0012] In the embodiment of the utility model, the outer periphery of the connecting plate can be matched with the first annular inner peripheral wall.

[0013] In the embodiment of the utility model, the bottom plate inside the elastic sheet is formed with a downward opening groove.

[0014] The utility model discloses a shell structure of a drain valve has following beneficial effect: 1, the body connecting piece is set in the body inside, and the clamping interface on the connecting piece can not influence the appearance of drain valve, 2, the elastic buckle formed by elastic sheet and clamping boss is set in the bottom plate lower part outer periphery, can effectively avoid the water in the drain valve from the elastic buckle hole and then influence the drainage capacity and stability of drain valve, 3, three sets of clamping cooperation structure can reduce the water in the drain valve from the cooperation gap between the bottom plate and the body, increase the stability of drain valve. 4, the elastic buckle is set in the bottom plate lower part, and is clamped on the connecting piece of body, when disassembling, can directly use the tool to take down the bottom plate, and will not hurt the appearance surface of body. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the utility model, the following will be to the embodiment or prior art description needed to use the drawing briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0016] Figure 1 It is the sectional view of the utility model.

[0017] Figure 2 It is Figure 1 The enlarged schematic view of A in the utility model.

[0018] Figure 3 It is the schematic view of the body in the utility model.

[0019] Figure 4 It is the schematic view of the bottom plate in the utility model. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] Referring to the accompanying drawings, a drain valve housing structure includes a body (or housing) 10 and a base plate 20. The base plate is disposed inside the lower end of the body, or in other words, the base plate seals the opening at the lower end of the body. An elastic sheet 30 is provided on the outer periphery of the base plate, and a snap-fit ​​protrusion 31 is provided on the outer periphery of the elastic sheet. A connecting piece 40 is provided on the inner periphery of the lower end of the body, and a snap-fit ​​interface 41 is provided on the connecting piece. The snap-fit ​​protrusion can engage with the snap-fit ​​interface. In this way, due to the characteristic that the elastic sheet cannot deform without external force, the snap-fit ​​protrusion maintains the snap-fit ​​engagement with the snap-fit ​​interface, so that the body and the base plate are connected together.

[0026] Preferably, the connecting piece is formed by an inward protrusion of the inner peripheral wall of the lower end of the main body. A recess 21 is provided on the lower peripheral side of the base plate, which can be adapted to the protruding connecting piece, and the elastic piece is disposed within the recess. At least two connecting pieces are arranged circumferentially on the inner peripheral wall of the lower end of the main body, and a recess that can be adapted to the connecting pieces is arranged circumferentially on the lower peripheral side of the base plate. In one embodiment, the base plate includes a radially extending plate 22 at the bottom, and the recess is formed by an inward indentation of the outer periphery of the plate.

[0027] Furthermore, the base plate located on the inner periphery of the snap-fit ​​protrusion includes a first connecting ring 23 and a second connecting ring 24 distributed vertically, with a first inclined surface 25 formed between the first and second connecting rings; the lower circumferential inner wall of the body includes a first annular inner wall 11 and a second annular inner wall 12 distributed vertically, with a second inclined surface 13 formed between the first and second annular inner walls. The outer periphery of the first connecting ring can be adapted to the first annular inner wall, the outer periphery of the second connecting ring can be adapted to the second annular inner wall, and the first inclined surface can be adapted to the second inclined surface. This can serve as a pre-guide for inserting the base plate into the body and improve the coaxiality during installation. A limiting block 14 can also be provided on the second annular inner wall, which can be placed between the outer peripheries of the second connecting rings between two adjacent recesses.

[0028] Furthermore, the outer diameter of the first connecting ring is smaller than the outer diameter of the second connecting ring, and the inner diameter of the first annular inner circumferential wall is smaller than the inner diameter of the second annular inner circumferential wall; the outer diameter of the second connecting ring is larger than the inner diameter of the first annular inner circumferential wall, and the outer diameter of the second connecting ring is smaller than the inner diameter of the second annular inner circumferential wall.

[0029] Preferably, a connecting plate 26 is further provided above the base plate, and the outer side of the connecting plate can be axially aligned with the outer peripheral wall of the first connecting ring. The outer periphery of the connecting plate can be adapted to the inner peripheral wall of the first ring, which can improve the situation where there is not too much axial wobble between the base plate and the body after installation.

[0030] Furthermore, a downward-facing groove 27 is formed on the base plate located inside the elastic sheet. During disassembly, the elastic sheet is moved into the groove by a tool, causing the snap-fit ​​protrusion to separate from the snap-fit ​​interface, thus achieving quick disassembly of the base plate and the body.

[0031] More specifically, this utility model provides a bottom plate connection mechanism for a drain valve, including a bottom plate and a body. An elastic buckle composed of an elastic sheet and a snap-fit ​​protrusion is provided on the lower part of the bottom plate. The inner side wall of the body extends inward to form a connecting piece, and a snap-fit ​​interface is opened on the connecting piece. The bottom plate is fixed to the snap-fit ​​block of the connecting piece of the body by the elastic buckle. Thus, the drain valve using this solution has no elastic buckle holes on its outer surface, and the drainage volume is stable and easy to disassemble and assemble.

[0032] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A housing structure for a drain valve, comprising a body and a base plate, characterized in that, The base plate is disposed inside the lower end of the main body; an elastic sheet is disposed on the outer periphery of the base plate, and a snap-fit ​​protrusion is disposed on the outer periphery of the elastic sheet. The base plate located on the inner periphery of the snap-fit ​​protrusion includes a first connecting ring and a second connecting ring distributed vertically, and a first inclined surface is formed between the first connecting ring and the second connecting ring; the lower periphery of the main body includes a first annular inner periphery wall and a second annular inner periphery wall distributed vertically, and a second inclined surface is formed between the first annular inner periphery wall and the second annular inner periphery wall. The outer periphery wall of the first connecting ring can be adapted to the first annular inner periphery wall, the outer periphery wall of the second connecting ring can be adapted to the second annular inner periphery wall, and the first inclined surface can be adapted to the second inclined surface.

2. The housing structure of a drain valve according to claim 1, characterized in that, A connecting piece is provided on the inner peripheral wall of the lower end of the main body, and a card interface is provided on the connecting piece. The card interface can be engaged with the card protrusion to connect the main body to the base plate.

3. The housing structure of a drain valve according to claim 2, characterized in that, The connecting piece is formed by the inward protrusion of the inner peripheral wall at the lower end of the body.

4. The housing structure of a drain valve according to claim 3, characterized in that, The lower periphery of the base plate is provided with a recessed portion, which can be adapted to the protruding connecting piece, and the elastic piece is disposed in the recessed portion.

5. The housing structure of a drain valve according to claim 4, characterized in that, At least two connecting pieces are arranged in a ring on the inner peripheral wall of the lower end of the main body, and a recessed part that can be adapted to the connecting pieces is arranged in a ring on the lower peripheral side of the bottom plate.

6. The housing structure of a drain valve according to any one of claims 1-5, characterized in that, The outer diameter of the first connecting ring is smaller than the outer diameter of the second connecting ring, and the inner diameter of the inner circumferential wall of the first ring is smaller than the inner diameter of the inner circumferential wall of the second ring; the outer diameter of the second connecting ring is larger than the inner diameter of the inner circumferential wall of the first ring, and the outer diameter of the second connecting ring is smaller than the inner diameter of the inner circumferential wall of the second ring.

7. The housing structure of a drain valve according to claim 6, characterized in that, A connecting plate is also provided above the base plate, and the outer side of the connecting plate can be aligned axially with the outer peripheral wall of the first connecting ring.

8. The housing structure of a drain valve according to claim 7, characterized in that, The outer periphery of the connecting plate can be adapted to the inner peripheral wall of the first annular ring.

9. The housing structure of a drain valve according to any one of claims 1-5 and 7-8, characterized in that, A downward-facing groove is formed on the bottom plate located inside the elastic sheet.

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