Faucet anti-loosening structure and faucet

Abstract

The utility model provides a faucet anti-loosening structure and a faucet. The faucet anti-loosening structure comprises a valve element and a handle. The valve element comprises a valve rod, the handle is provided with an insertion hole for the valve rod to be inserted in, in addition, an inverted buckle is arranged between the valve rod and the insertion hole, during assembly, after the valve rod is inserted into the insertion hole and inserted in place, the inverted buckle buckles the valve rod and the handle and limits the valve rod to retreat from the insertion hole, and therefore fixed installation can be formed between the valve element and the handle, and the valve element can be fixed to the handle. On one hand, whether the handle is installed in place or not can be judged, so that subsequent reinforcement is facilitated, and on the other hand, when the handle of the reinforcing structure is loosened during use, the handle and the valve rod cannot loosen or even fall off.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen and bathroom, in particular to an anti-loosening structure of a faucet and a faucet. Background Art

[0002] For the convenience of users to turn on and off the water, a handle is configured on the valve stem of the faucet product, and the valve stem is rotated or toggled through the handle. At present, for the faucet products on the market, the handle mostly adopts the assembly method of fixing with screws or pins, or a handle is configured on the handle, and a screw rod is provided at one end of the handle and screwed into the handle. At the same time, the screw rod also abuts against the valve stem. Although the above-mentioned assembly structure shows the advantages of simple structure and easy processing, during the use of the faucet, there is a problem that the screws, pins or screws are easy to loosen, which brings the problem of unstable installation of the handle. During use, the handle often falls off, bringing a bad use experience to consumers. Therefore, the utility model provides an anti-loosening structure of the faucet handle that can effectively solve the above technical problems. Content of the Utility Model

[0003] In order to solve the above technical problems, the utility model proposes a structure that can effectively prevent the handle from falling off.

[0004] In the first aspect, an anti-loosening structure of a faucet is provided, including a valve core and a handle. Specifically,

[0005] The valve core includes a valve stem, and the handle is provided with an insertion hole for the valve stem to insert. In addition, a reverse buckle is provided between the valve stem and the insertion hole. During assembly, after the valve stem is inserted into the insertion hole and inserted in place, the reverse buckle buckles the valve stem and the handle and restricts the valve stem from withdrawing from the insertion hole, so that a fixed installation or a pre-installation can be formed between the valve core and the handle. On the one hand, it is beneficial to judge whether the handle is installed in place for subsequent reinforcement (such as screw locking or pin locking). On the other hand, when the above reinforcement structure loosens during the use of the handle, the handle will not become loose or even fall off from the valve stem.

[0006] Preferably, the reverse buckle has elasticity.

[0007] Preferably, the reverse buckle is arranged on the peripheral part of the end of the valve stem. After the valve stem is inserted into the insertion hole and inserted in place, the reverse buckle buckles the end of the insertion hole far from the valve core.

[0008] Preferably, a step is provided on the peripheral part of the valve stem, the step is provided with an elastic arm extending along the axial direction, and a contraction gap is formed between the surface of the elastic arm facing the valve stem and the peripheral part of the valve stem. The reverse buckle is arranged at the position where the end of the elastic arm faces outwards.

[0009] Preferably, the outer edge of the end of the reverse buckle is chamfered.

[0010] Preferably, to further improve the restraining ability of the reverse buckle, a barb is provided on the side of the reverse buckle facing the jack, and a pointed protrusion for engaging the barb is provided on the end face of the jack.

[0011] Preferably, there are at least two reverse buckles, which are evenly distributed around the axis of the valve stem.

[0012] Preferably, a threaded hole communicating with the jack is provided on the circumference of the handle, and a screw or a handle with a screw rod is screwed into the threaded hole.

[0013] Preferably, it further includes an installation cavity. The valve core is installed in the installation cavity, and the valve stem extends out. A docking end is formed at the opening of the installation cavity, and an annular docking step is provided at the docking end. A guiding protrusion is provided at the edge of the end of the handle facing the installation cavity. During the assembly process, the handle and the valve stem are sleeved with each other through the guiding protrusion and the docking step, and the end of the handle is fixed and assembled after being attached to the docking end of the installation cavity. Here, the so-called fixed assembly can be achieved by locking with screws or pins.

[0014] By providing a docking step at the opening of the installation cavity of the faucet body and a guiding protrusion at the end of the handle in the present invention, during assembly, through the mutual sleeving of the docking step and the guiding protrusion, and also through the attachment of the end of the handle to the docking end of the installation cavity, the assembly errors of the valve core and the errors existing in the valve stem are offset by the restrictions in two directions. After the handle is fixed and assembled, when it rotates, it can maintain a consistent relative state with the faucet body, solving the problems of skew or significantly uneven gaps existing after the traditional handle is installed.

[0015] Preferably, the docking step is provided on the inner circle of the opening of the installation cavity, the guiding protrusion is inserted into the docking step, and the outer diameter of the guiding protrusion is equal to the inner diameter of the docking step. To improve the convenience of assembly, the outer edge of the end of the guiding protrusion is rounded or chamfered, and the inner circle of the opening of the installation cavity of the docking step is rounded or chamfered. A wear-resistant ring is provided at the joint where the handle and the docking end of the installation cavity are attached to avoid component wear.

[0016] Preferably, the handle includes a guiding sleeve, a decorative cover and a handle. The guiding sleeve is provided with the jack and is assembled with the valve stem, and the decorative cover is sleeved on the outer periphery of the guiding sleeve. Aligned threaded holes and through holes are respectively provided on the circumferences of the guiding sleeve and the decorative cover. The threaded hole communicates with the jack. One end of the handle is provided with a screw rod, which passes through the through hole and is screwed into the threaded hole, and presses against the valve stem.

[0017] In a second aspect, a faucet is provided, which adopts the faucet anti-loosening structure described in the first aspect.

[0018] As can be seen from the above description of the present invention, the present invention has the following beneficial effects:

[0019] The anti-loosening structure of the faucet provided by the present utility model is provided with an inverse buckle between the valve stem and the jack, which can effectively limit the withdrawal of the valve stem from the jack, so that a fixed installation or a pre-installation can be formed between the valve core and the handle. On the one hand, it is beneficial to judge whether the handle is installed in place, so as to facilitate subsequent reinforcement (such as screw locking or pin locking). On the other hand, when the above-mentioned reinforcement structure loosens during the use of the handle, the handle will not become loose or even fall off from the valve stem;

[0020] The inverse buckle has elasticity, which is convenient for assembly and is not prone to extrusion damage;

[0021] There are at least two inverse buckles, which can provide uniform limiting force;

[0022] The present utility model sets a docking step at the opening of the installation cavity of the faucet main body, and a guiding protrusion is provided at the end of the handle. During assembly, through the mutual sleeving of the docking step and the guiding protrusion, and also through the fitting of the end of the handle with the docking end of the installation cavity, the limiting in two directions is used to offset the assembly error of the valve core and the error existing in the valve stem. After the handle is fixedly assembled and rotated, it can maintain a consistent relative state with the faucet main body, solving the problems of skew or obvious uneven gaps existing after the traditional handle is installed;

[0023] The docking step is arranged on the inner circle of the opening of the installation cavity, and the guiding protrusion can be hidden;

[0024] The outer edge of the end of the guiding protrusion is provided with a fillet or a chamfer, and the inner circle of the opening of the installation cavity of the docking step is provided with a fillet or a chamfer to improve the convenience of assembly;

[0025] A wear-resistant ring is provided at the fitting part of the handle and the docking end of the installation cavity to avoid component wear. Description of the Drawings

[0026] The drawings described herein are used to provide a further understanding of the present utility model, and constitute a part of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0027] Among them:

[0028] Figure 1 is an axonometric view of an anti-loosening structure of a faucet;

[0029] Figure 2 is an explosion of an anti-loosening structure of a faucet Figure 1 ;

[0030] Figure 3 is an explosion of an anti-loosening structure of a faucet Figure 2 ;

[0031] Figure 4 It is a front view of a faucet anti-loosening structure;

[0032] Figure 5 A cross-sectional view of a faucet anti-loosening structure Figure 1 ;(about Figure 4 AA)

[0033] Figure 6 A cross-sectional view of a faucet anti-loosening structure Figure 2 ;(about Figure 4 BB)

[0034] Figures 1 to 6 The identifiers are:

[0035] Valve core 1, valve stem 11, elastic arm 111, pointed protrusion 112, handle 2, plug hole 21, screw hole 22, handle 23, guide protrusion 24, wear-resistant ring 25, guide sleeve 26, decorative cover 27, undercut 3, undercut 31, installation cavity 4, docking step 41. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0037] See also Figures 1 to 6 A faucet anti-loosening structure includes a valve core 1 and a handle 2. Specifically,

[0038] The valve core 1 includes a valve stem 11, and the handle 2 is provided with a socket 21 for inserting the valve stem 11. In addition, a buckle 3 is provided between the valve stem 11 and the socket 21. During assembly, after the valve stem 11 is inserted into the socket 21 and inserted into place, the buckle 3 buckles the valve stem 11 and the handle 2 and restricts the valve stem 11 from withdrawing from the socket 21, thereby forming a fixed installation or a pre-installation between the valve core 1 and the handle 2. On the one hand, it is helpful to judge whether the handle 2 is installed in place, so as to facilitate subsequent reinforcement (such as screw locking or pin locking). On the other hand, when the above-mentioned reinforcement structure is loosened when the handle 2 is used, the handle 2 will not become loose or even fall off from the valve stem 11.

[0039] In this embodiment, the reverse buckle 3 is elastic, which is convenient for assembly and not prone to extrusion damage. The specific solution can be as follows: a step is provided on the circumference of the valve stem 11, the step is provided with an elastic arm 111 extending along the axial direction, and there is a contraction gap between the surface of the elastic arm 111 facing the valve stem 11 and the circumference of the valve stem 11. The reverse buckle 3 is arranged at the position where the end of the elastic arm 111 faces outward. After the valve stem 11 is inserted into the insertion hole 21 and inserted in place, the reverse buckle 3 buckles the end of the insertion hole 21 away from the valve core 1. In addition, to improve the fluency of assembly, the outer edge of the end of the reverse buckle 3 is chamfered.

[0040] In one embodiment, there is one or two reverse buckles 3, which are symmetrically arranged on both sides of the valve stem 11. In addition, to further improve the limiting ability of the reverse buckle 3, a barb 31 is provided on the surface of the reverse buckle 3 facing the insertion hole 21, and a pointed protrusion 112 that is engaged with the barb 31 is provided on the end face of the insertion hole 21.

[0041] In another embodiment, the faucet anti-loosening structure further includes an installation cavity 4. The valve core 1 is installed in the installation cavity 4, and the valve stem 11 extends out. A docking end is formed at the opening of the installation cavity 4, and the docking end is provided with an annular docking step 41. A guiding protrusion 24 is provided at the edge of the end of the handle 2 facing the installation cavity 4. During the assembly process, the handle 2 and the valve stem 11 are sleeved with each other through the guiding protrusion 24 and the docking step 41, and after the end of the handle 2 fits with the docking end of the installation cavity 4, they are fixedly assembled. The fixed assembly here can be achieved by locking with screws or pins.

[0042] On the basis of the above embodiments, preferably, the docking step 41 is arranged on the inner circle of the opening of the installation cavity 4, the guiding protrusion 24 is inserted into the docking step 41, and the outer diameter of the guiding protrusion 24 is equal to the inner diameter of the docking step 41. To improve the convenience of assembly, the outer edge of the end of the guiding protrusion 24 is rounded or chamfered, and the inner circle of the opening of the installation cavity 4 of the docking step 41 is rounded or chamfered. A wear-resistant ring 25 is provided at the fitting position of the end of the handle 2 and the docking end of the installation cavity 4 to avoid component wear.

[0043] In the present utility model, a docking step 41 is provided at the opening of the installation cavity 4 of the faucet main body, and a guiding protrusion 24 is provided at the end of the handle 2. During assembly, through the mutual sleeving of the docking step 41 and the guiding protrusion 24, and also through the fitting of the end of the handle 2 with the docking end of the installation cavity 4, the assembly errors of the valve core 1 and the errors existing in the valve stem 11 are offset by the restrictions in two directions. After the handle 2 is fixedly assembled, when it rotates, it can maintain a consistent relative state with the faucet main body, solving the problems of skew or significantly uneven gaps existing after the traditional handle 2 is installed.

[0044] Based on the above embodiments, in one embodiment, the handle 2 includes a guiding sleeve 26, a decorative cover 27, and a handle 23. The guiding sleeve 26 is provided with the jack 21 and is assembled with the valve stem 11. The decorative cover 27 is sleeved on the outer peripheral portion of the guiding sleeve 26. Aligned screw holes 22 and through holes are respectively provided on the circumferences of the guiding sleeve 26 and the decorative cover 27. The screw hole 22 communicates with the jack 21. One end of the handle 23 is provided with a screw rod, which passes through the through hole and is screwed into the screw hole 22 and abuts against the valve stem 11.

[0045] In another embodiment, a faucet is provided, which adopts the above faucet anti-loosening structure and includes a faucet main body, a valve core 1, and a handle 2. The installation cavity 4 is arranged on the faucet main body.

[0046] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0047] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0048] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0050] In the present utility model, the terms "an embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0051] Although the above embodiments have been shown and described, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Any changes, modifications, substitutions, and variations made by those of ordinary skill in the art to the above embodiments are within the protection scope of the present utility model.

Claims

1. A faucet anti-loosening structure, characterized in that: Including valve core and handle; The valve core includes a valve stem, and the handle is provided with a socket for inserting the valve stem; an undercut is provided between the valve stem and the socket, and after the valve stem is inserted into the socket and inserted into place, the undercut holds the valve stem and the handle and restricts the valve stem from withdrawing from the socket.

2. A faucet anti-loosening structure according to claim 1, characterized in that: The undercut is elastic.

3. A faucet anti-loosening structure according to claim 1 or 2, characterized in that: The undercut is arranged at the peripheral part of the end of the valve stem. After the valve stem is inserted into the insertion hole and inserted into place, the undercut buckles the end of the insertion hole away from the valve core.

4. A faucet anti-loosening structure according to claim 3, characterized in that: The periphery of the valve stem is provided with a step, the step is provided with an elastic arm extending along the axial direction, and a side of the elastic arm facing the valve stem has a contraction gap with the periphery of the valve stem, and the undercut is arranged at a position facing outward at the end of the elastic arm.

5. The faucet anti-loosening structure according to claim 3, characterized in that: A barb is provided on one side of the undercut facing the insertion hole, and a pointed protrusion which is engaged with the barb is provided on the end surface of the insertion hole.

6. A faucet anti-loosening structure according to claim 1 or 2, characterized in that: There are at least two undercuts, which are evenly distributed around the axis of the valve stem.

7. The faucet anti-loosening structure according to claim 1, characterized in that: It also includes an installation cavity, the valve core is installed in the installation cavity, and the valve stem extends out; a docking end is formed at the opening of the installation cavity, and the docking end is provided with an annular docking step; the end edge of the handle facing the installation cavity is provided with a guide protrusion, and during the assembly process, the handle and the valve stem are mutually arranged on the guide protrusion and the docking step, and the end of the handle is fitted with the docking end of the installation cavity and then fixedly assembled.

8. The faucet anti-loosening structure according to claim 7, characterized in that: The docking step is arranged at the opening inner circle of the installation cavity, the guiding protrusion is inserted into the docking step, and the outer diameter of the guiding protrusion is equal to the inner diameter of the docking step; the outer edge of the end of the guiding protrusion is rounded or chamfered, and the opening inner circle of the installation cavity of the docking step is rounded or chamfered; a wear-resistant ring is provided at the joint of the docking end of the handle and the installation cavity.

9. A faucet anti-loosening structure according to claim 1 or 7, characterized in that: The handle comprises a guide sleeve, a decorative cover and a handle, the guide sleeve is provided with the insertion hole and is assembled with the valve stem, the decorative cover is sleeved on the outer periphery of the guide sleeve; the peripheries of the guide sleeve and the decorative cover are respectively provided with aligned screw holes and through holes, the screw holes are connected to the insertion hole, one end of the handle is provided with a screw rod, which passes through the through hole and is screwed into the screw hole to support the valve stem.

10. A faucet, characterized in that: A faucet anti-loosening structure as described in any one of claims 1 to 9 is adopted.

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