Quick coupler and faucet

Abstract

The utility model provides a quick coupler and a faucet. The quick coupler comprises a first butt joint sleeve, a fixed connector and a second butt joint sleeve. A plurality of axial guide grooves and limiting holes are formed in the first butt-joint sleeve, a horn-shaped expansion opening is formed in the position, at the inserting opening of the first butt-joint sleeve, of one end of each guide groove, and the second butt-joint sleeve is rotationally arranged on the periphery of the fixed connector in a sleeving mode. A plurality of axial guide strips and inverted buckles are arranged on the periphery of the second butt joint sleeve, and sharp leading-in heads are formed at the ends of the guide strips. The fixing connector and the second butt-joint sleeve are inserted into the first butt-joint sleeve, the guide strip is guided into the guide groove through the guide-in head and the expansion opening, and the inverted buckle is clamped into the limiting hole. When the quick coupler provided by the utility model is installed, even if the guide strip and the guide groove have deviation, the deviation can be automatically corrected along with the insertion action, so that the assembly convenience and the assembly speed are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen and bathroom, in particular to a quick-install joint and a faucet. Background Art

[0002] Common kitchen faucets are usually longer in size for ease of use, so their shipping boxes are often larger, resulting in higher packaging costs, inventory costs, and transportation costs. For this reason, many kitchen faucets on the market have water arms that are assembled by consumers after receipt and are equipped with docking joints. However, the existing docking joint structure is too simple, which leads to some problems such as the need for precise alignment to assemble in place or cumbersome assembly, making it impossible to achieve quick installation, causing trouble for some consumers with poor hands-on skills. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a quick-installation structure which is convenient to install.

[0004] In a first aspect, a quick connector is provided, comprising a first docking sleeve, a fixed connector and a second docking sleeve, wherein:

[0005] The first docking sleeve is provided with a plurality of axial guide grooves inside, and one end of the guide groove forms a trumpet-shaped expansion opening at the insertion interface of the first docking sleeve. The first docking sleeve is also provided with a plurality of limiting holes inside.

[0006] The second docking sleeve is rotatably sleeved on the outer periphery of the fixed joint, and the fixed joint and the second docking sleeve are relatively fixed in the axial direction, so that when the first docking sleeve and the second docking sleeve are docked, the first docking sleeve is also rotatably installed on the fixed joint.

[0007] The outer periphery of the second docking sleeve is provided with a plurality of axial guide strips, the number of which is consistent with the number of guide grooves, and the guide strip forms a pointed guide head at the plug-in end facing the second docking sleeve. The outer periphery of the second docking sleeve is also provided with a plurality of undercuts, and the number of which is consistent with the number of limit holes.

[0008] The fixing joint and the second docking sleeve are inserted into the first docking sleeve, the guide strip is introduced into the guide groove through the introduction head and the expansion opening, and the undercut is snapped into the limiting hole.

[0009] The quick-connect fitting provided by the present utility model, on the one hand, allows the two components docked by it to form a relatively rotatable assembled state. On the other hand, by providing a guiding groove with an expansion opening and a guiding strip with a pointed leading head, when the first docking sleeve and the second docking sleeve are docked, even if there is a deviation between the guiding strip and the guiding groove, it can be automatically corrected along with the insertion action, without the need to be completely aligned before insertion, improving the assembly convenience and assembly speed.

[0010] Preferably, on the outer peripheral part of the second docking sleeve, guiding grooves are also formed between adjacent guiding strips, and on the outer peripheral part of the first docking sleeve, guiding strips are also formed between adjacent guiding grooves, thereby improving the fitting property between the first docking sleeve and the second docking sleeve, and improving the stability and firmness after docking.

[0011] Preferably, side walls parallel to the axial direction of the first docking sleeve are provided in the middle of the guiding groove and the guiding strip. Thus, when the first docking sleeve is rotated, the second docking sleeve is driven to rotate through the side walls parallel to the axial direction. At this time, no axial component force will appear between the two sleeves, and the two sleeves can be prevented from automatically separating due to rotation.

[0012] Preferably, the reverse buckle is an elastic buckle and is arranged on the guiding strip.

[0013] Preferably, a relief opening is provided on the outer peripheral part of the second docking sleeve, an elastic arm is arranged in the relief opening, and the reverse buckle is arranged at the end of the elastic arm to form the elastic buckle.

[0014] Preferably, the fixed joint is provided with a surrounding groove corresponding to the relief opening.

[0015] Preferably, the insertion end of the fixed joint is provided with an annular limiting groove, and the other end is provided with a supporting step. A limiting protrusion that snaps into the annular limiting groove is arranged inside the insertion end of the second docking sleeve, and the insertion end forms an expandable and contractible port through a plurality of split notches. The other end of the second docking sleeve abuts against or is close to the supporting step.

[0016] Preferably, a damping rubber ring is arranged between the fixed joint and the second docking sleeve. The damping rubber ring is hidden between the fixed joint and the second docking sleeve to avoid exposure and aging. At the same time, it also avoids the silicone oil coated on the damping rubber ring from being exposed and easily dried or wiped off. In addition, the second docking sleeve is made of a plastic part. Compared with the traditional rubber ring that is exposed and directly contacts the water outlet arm made of a metal material, the second docking sleeve made of a plastic part can form a smoother contact surface, reduce the situation of scratching the damping rubber ring, and make the damping rubber ring more durable.

[0017] Preferably, the outer periphery of the first docking sleeve is provided with a core withdrawal groove staggered with the limiting hole, and the core withdrawal groove is perpendicular to the axial direction of the first docking sleeve.

[0018] In a second aspect, a faucet is provided, comprising a faucet body, a water outlet arm, and the quick-release joint described in the first aspect. The water outlet of the faucet body is provided with a docking port, and docks with the mounting end of the fixed joint, the first docking sleeve is installed at the water inlet of the water outlet arm, the faucet body and the water outlet arm are docked and fixedly assembled through the quick-release joint, and after assembly, the water outlet arm can rotate freely relative to the faucet body.

[0019] During shipment, the first docking sleeve can be installed in the water inlet end of the water outlet arm, while the fixed joint and the second docking sleeve can be installed in the water outlet end of the faucet body. The faucet body and the water outlet arm can be packaged separately, which can greatly reduce the size of the packaging box.

[0020] From the above description of the utility model, it can be seen that the utility model has the following beneficial effects:

[0021] The quick-release connector provided by the utility model, on the one hand, allows the two butted parts to form a relatively rotatable assembly state; on the other hand, by providing a guide groove with an expansion opening and a guide strip with a pointed introduction head, when the first butt sleeve and the second butt sleeve are butt-jointed, even if there is a deviation between the guide strip and the guide groove, it can be automatically corrected with the insertion action, and there is no need to fully align before plugging, thereby improving assembly convenience and assembly speed;

[0022] The middle parts of the guide groove and the guide strip are both provided with side walls parallel to the axial direction of the first docking sleeve, so that when the first docking sleeve is rotated, the second docking sleeve is driven to rotate through the side walls parallel to the axial direction. At this time, no axial force component will appear between the two sleeves, which can prevent the two sleeves from automatically separating due to rotation;

[0023] The undercut is an elastic buckle, which makes it easier to assemble;

[0024] The undercut is arranged on the guide strip, which makes the layout more reasonable and can also prevent the second butt joint sleeve from further damaging its strength at a thinner position;

[0025] A damping rubber ring is provided between the fixed joint and the second butt sleeve to improve the rotation feel. In addition, the damping rubber ring is hidden between the fixed joint and the second butt sleeve to avoid exposure and aging. At the same time, it also prevents the silicone oil coated on the damping rubber ring from being exposed and easily dried or wiped off.

[0026] The second docking sleeve is made of plastic. Compared with the traditional rubber ring that is exposed and directly contacts the water outlet arm made of metal, the second docking sleeve made of plastic can be formed into a smoother contact surface, reducing the situation of scratching the damping rubber ring and making the damping rubber ring more durable.

[0027] The outer peripheral part of the first docking sleeve is provided with a core ejection groove staggered with the limiting hole, which is convenient for the formation of the limiting hole and also convenient for the demolding of the core for forming the limiting hole.

[0028] When shipping, the faucet body and the water outlet arm are packaged separately, which can greatly reduce the size of the packaging box. Brief Description of the Drawings

[0029] The drawings described herein are used to provide a further understanding of the present invention, form a part of the present invention, and the schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0030] Among them:

[0031] Figure 1 is an axonometric view of a quick-connect fitting;

[0032] Figure 2 is a front view of a quick-connect fitting;

[0033] Figure 3 is a cross-sectional view of a quick-connect fitting; (at A-A of Figure 2 )

[0034] Figure 4 is an exploded Figure 1 ;

[0035] Figure 5 is an exploded Figure 2 ;

[0036] Figure 6 is an axonometric view of a faucet;

[0037] Figure 7 is an exploded view of a faucet;

[0038] Figure 8 is a schematic diagram of the shipping state of a faucet;

[0039] Figure 9 is a front view of a faucet;

[0040] Figure 10 is a cross-sectional view of a faucet; (at B-B of Figure 9 )

[0041] Figures 1 to 10The identifications in it are respectively: the first docking sleeve 1, the guide groove 11, the expansion opening 111, the limiting hole 12, the core ejection groove 13, the fixed joint 2, the annular limiting groove 21, the supporting step 22, the damping rubber ring 23, the groove 24, the second docking sleeve 3, the limiting protrusion 31, the guide bar 32, the leading-in head 321, the reverse buckle 33, the faucet body 4, and the water outlet arm 5. Detailed implementation mode

[0042] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0043] Please refer to Figures 1 to 10 , a quick-connect fitting, including a first docking sleeve 1, a fixed joint 2 and a second docking sleeve 3, wherein,

[0044] A plurality of axial guide grooves 11 are provided inside the first docking sleeve 1, and one end of the guide groove 11 forms a trumpet-shaped expansion opening 111 at the insertion port of the first docking sleeve 1. A plurality of limiting holes 12 are also provided inside the first docking sleeve 1.

[0045] In one embodiment, a core ejection groove 13 staggered with the limiting hole 12 is provided on the outer peripheral part of the first docking sleeve 1, and the core ejection groove 13 is perpendicular to the axis of the first docking sleeve 1.

[0046] The second docking sleeve 3 is rotatably sleeved on the outer peripheral part of the fixed joint 2, and the fixed joint 2 and the second docking sleeve 3 are axially relatively fixed, so that when the first docking sleeve 1 and the second docking sleeve 3 are docked, the first docking sleeve 1 is also in a state of being rotatably installed on the fixed joint 2.

[0047] In one embodiment, an annular limiting groove 21 is provided at the insertion end of the fixed joint 2, and a supporting step 22 is provided at the other end. A limiting protrusion 31 that is snapped into the annular limiting groove 21 is provided inside the insertion end of the second docking sleeve 3, and the insertion end forms an expandable and contractible port through a plurality of split notches, and the other end of the second docking sleeve 3 abuts against or approaches the supporting step 22. In addition, a damping rubber ring 23 is provided between the fixed joint 2 and the second docking sleeve 3. In addition, the second docking sleeve 3 is made of a plastic part.

[0048] The outer periphery of the second docking sleeve 3 is provided with a plurality of axial guide strips 32, the number of which is consistent with the number of guide grooves 11, and the guide strips 32 form a pointed introduction head 321 at the plug-in end facing the second docking sleeve 3. The outer periphery of the second docking sleeve 3 is also provided with a plurality of undercuts 33, and the number of the undercuts 33 is consistent with the number of the limiting holes 12. In this embodiment, there are four undercuts 33 and four limiting holes 12.

[0049] The fixed joint 2 and the second docking sleeve 3 are inserted into the first docking sleeve 1, the guide strip 32 is introduced into the guide groove 11 through the introduction head 321 and the expansion opening 111, and the undercut 33 is inserted into the limiting hole 12. In this embodiment, guide grooves 11 are also formed between adjacent guide strips 32 on the outer periphery of the second docking sleeve 3, and guide strips 32 are also formed between adjacent guide grooves 11 on the outer periphery of the first docking sleeve 1, thereby improving the fit between the first docking sleeve 1 and the second docking sleeve 3, and improving the stability and firmness after docking.

[0050] In one embodiment, the middle portions of the guide groove 11 and the guide strip 32 are provided with side walls parallel to the axial direction of the first docking sleeve 1, so that when the first docking sleeve 1 is rotated, the second docking sleeve 3 is driven to rotate through the side walls parallel to the axial direction. At this time, no axial force component will appear between the two sleeves, thereby preventing the two sleeves from automatically separating due to rotation.

[0051] As for the structure of the undercut 33, in one embodiment, the undercut 33 is an elastic buckle and is arranged on the guide strip 32. Specifically, the outer periphery of the second docking sleeve 3 is provided with a clearance opening, and an elastic arm is arranged in the clearance opening. The undercut 33 is arranged at the end of the elastic arm to form the elastic buckle. In addition, the fixed joint 2 is provided with a surrounding groove 24 corresponding to the clearance opening to provide a shrinking space for the undercut 33.

[0052] In another embodiment, a faucet is provided, comprising a faucet body 4, a water outlet arm 5 and the quick-release joint described in the above embodiment. The water outlet of the faucet body 4 is provided with a docking port, and docks with the mounting end of the fixed joint 2, the first docking sleeve 1 is installed at the water inlet of the water outlet arm 5, and the faucet body 4 and the water outlet arm 5 are docked and fixedly assembled through the quick-release joint.

[0053] When shipping, the first docking sleeve 1 can be installed in the water inlet end of the water outlet arm 5, and the fixed joint 2 and the second docking sleeve 3 can be installed at the water outlet end of the faucet body 4. The faucet body 4 and the water outlet arm 5 can be packaged in a split manner, which can greatly reduce the size of the packaging box.

[0054] The quick-connect fitting provided by the present utility model, on the one hand, allows the two components docked therewith to form a relatively rotatable assembled state. On the other hand, by providing a guiding groove 11 with an expansion opening 111 and a guiding strip 32 with a pointed insertion head 321, when the first docking sleeve 1 and the second docking sleeve 3 are docked, even if there is a deviation between the guiding strip 32 and the guiding groove 11, it can be automatically corrected along with the insertion action, without the need to be completely aligned before insertion, improving the assembly convenience and assembly speed.

[0055] In the description of the present utility model, 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. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model 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 thus should not be construed as a limitation of the present utility model.

[0056] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed 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 utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0057] In the present utility model, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0058] 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 in indirect 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.

[0059] 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 any one or more embodiments or examples in a suitable manner. 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 the different embodiments or examples.

[0060] 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 quick-connect fitting, characterized in that, It includes a first docking sleeve, a fixed joint and a second docking sleeve; The first docking sleeve is provided with a plurality of axial guide grooves inside, one end of the guide groove forms a trumpet-shaped expansion opening at the insertion interface of the first docking sleeve; the first docking sleeve is also provided with a plurality of limit holes inside; The second docking sleeve is rotatably sleeved on the outer periphery of the fixed joint, and the fixed joint and the second docking sleeve are relatively fixed in the axial direction; the outer periphery of the second docking sleeve is provided with a plurality of axial guide strips, the number of the guide strips is consistent with the number of guide grooves, and the guide strip forms a pointed introduction head at the plug-in end facing the second docking sleeve; the outer periphery of the second docking sleeve is also provided with a plurality of undercuts, and the number of the undercuts is consistent with the number of the limiting holes; The fixing joint and the second docking sleeve are inserted into the first docking sleeve, the guide strip is introduced into the guide groove through the introduction head and the expansion opening, and the undercut is snapped into the limiting hole.

2. The quick-connect fitting according to claim 1, wherein Guide grooves are also formed between adjacent guide bars on the outer periphery of the second docking sleeve, and guide strips are also formed between adjacent guide grooves on the outer periphery of the first docking sleeve.

3. A quick-connect fitting according to claim 1, characterized in that, The middle parts of the guide groove and the guide strip are both provided with side walls parallel to the axial direction of the first docking sleeve.

4. The quick-connect fitting according to claim 1, characterized in that, The undercut is an elastic buckle and is arranged on the guide bar.

5. The quick-connect fitting according to claim 4, characterized in that, A clearance opening is provided on the outer periphery of the second docking sleeve, an elastic arm is provided in the clearance opening, and the undercut is provided at the end of the elastic arm to form the elastic buckle.

6. The quick-connect fitting according to claim 5, characterized in that, The fixed joint is provided with a surrounding groove corresponding to the clearance opening.

7. The quick connector according to claim 1, characterized in that, The insertion end of the fixed joint is provided with an annular limit groove, and the other end is provided with a supporting step; the plug-in end of the second docking sleeve is provided with a limiting protrusion that fits into the annular limit groove, and the plug-in end forms an expandable and contractible port through a plurality of dividing notches, and the other end of the second docking sleeve is against or close to the supporting step.

8. A quick-connect fitting according to claim 1, characterized in that, A damping rubber ring is arranged between the fixed joint and the second butt sleeve, and the second butt sleeve is made of plastic.

9. The quick-connect fitting according to claim 1, wherein, The outer periphery of the first docking sleeve is provided with a core withdrawal groove staggered with the limiting hole, and the core withdrawal groove is perpendicular to the axial direction of the first docking sleeve.

10. A faucet, characterized in that, It comprises a faucet body, a water outlet arm and the quick-release connector according to any one of claims 1 to 9; the water outlet of the faucet body is provided with a docking port, and docks with the mounting end of the fixed connector, the first docking sleeve is installed at the water inlet of the water outlet arm, and the faucet body and the water outlet arm are docked and fixedly assembled via the quick-release connector.

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