A faucet pre-tension device

Abstract

This invention discloses a faucet pre-tightening device, comprising a mating body and an installation tube. A pre-tightening component is disposed on the outer periphery of the installation tube. The pre-tightening component includes an upper nut and a lower nut screwed to the outer periphery of the installation tube. A washer is disposed between the upper nut and the lower nut. The washer is located on the outer periphery of the installation tube and can be deformed by the upper nut and the lower nut to tighten the installation tube and the pre-tightening component. This invention allows the pre-tightening component and the installation tube to rotate synchronously after installation, preventing the pre-tightening component from loosening after the faucet has been rotating for a long time, and ensuring the stability of the overall faucet installation structure.

Description

Technical Field

[0001] This invention relates to a faucet pre-tightening device. Background Technology

[0002] In some households, faucets, due to repeated use, can loosen the mounting nuts located under the sink. Over time, this creates a larger gap between the faucet and the sink, causing the faucet to swing back and forth. This allows water and other substances from the sink to leak through the mounting holes on the countertop and flow under the sink. Therefore, the mounting nuts need to be tightened every time the faucet loosens, which is inconvenient, especially when the space under the sink is limited. In summary, there are two main issues: 1. The mounting nuts tend to loosen after prolonged use, causing the faucet to swing back and forth; 2. The need to repeatedly tighten the nuts is inconvenient. Summary of the Invention

[0003] In order to solve the above-mentioned technical problems, the purpose of this invention is to provide a faucet pre-tightening device.

[0004] This invention is achieved through the following technical solution:

[0005] A faucet pre-tightening device includes a mating body and an installation tube. A pre-tightening component is provided on the outer periphery of the installation tube. The pre-tightening component includes an upper nut and a lower nut that are screwed to the outer periphery of the installation tube. A washer is provided between the upper nut and the lower nut. The washer is located on the outer periphery of the installation tube. The washer can be squeezed and deformed by the upper nut and the lower nut to make the installation tube and the pre-tightening component grip tightly.

[0006] In this embodiment of the invention, the upper nut and the lower nut are connected in a mating manner, and the lower nut can rotate relative to the upper nut.

[0007] In this embodiment of the invention, a first connecting ring is provided below the upper nut, a washer is provided on the inner circumference of the first connecting ring, a snap-fit ​​protrusion is provided on the outer peripheral wall of the first connecting ring, and the first connecting ring can be inserted into the upper part of the lower nut; a connecting groove is provided on the outer peripheral wall above the lower nut to cooperate with the snap-fit ​​protrusion.

[0008] In this embodiment of the invention, a guide groove is provided above the lower nut from top to bottom, which can cooperate with the snap-fit ​​protrusion. The guide groove is located above the connecting groove and is connected to the connecting groove. The snap-fit ​​protrusion can rotate and snap into the connecting groove after passing through the guide groove, so as to realize the connection between the upper nut and the lower nut. The arc length of the guide groove is greater than the arc length of the snap-fit ​​protrusion, and the arc of the connecting groove is greater than the arc length of the guide groove. The guide groove is located above the connecting groove.

[0009] In this embodiment of the invention, at least two annularly distributed snap-fit ​​protrusions are provided on the outer periphery of the first connecting ring, and the lower nut is provided with a connecting groove and an inlet groove corresponding to the number of snap-fit ​​protrusions.

[0010] In this embodiment of the invention, the upper nut and the lower nut are provided with mounting cavities, and the washer is disposed within the mounting cavity.

[0011] In this embodiment of the invention, the lower nut is provided with a second connecting ring; when the first connecting ring is inserted into the lower nut, the first connecting ring can be located on the outer periphery of the second connecting ring, and an installation space for installing the first connecting ring and the snap-fit ​​protrusion is provided between the outer periphery of the second connecting ring and the upper inner periphery of the lower nut, and the connecting groove is located on the outer periphery of the second connecting ring; the upper nut is provided with a first connecting surface on the inner periphery of the first connecting ring, and the washer is located between the first connecting surface and the upper end surface of the second connecting ring.

[0012] In this embodiment of the invention, the height of the connecting groove is greater than the height of the snap-fit ​​protrusion, so as to realize the relative axial movement of the upper nut and the lower nut.

[0013] In this embodiment of the invention, an annular ring is provided on the outer periphery of the upper nut. The annular ring can be supported on the upper end surface of the lower nut. An annular groove is formed between the lower end of the annular ring and the upper end of the snap-fit ​​protrusion. The peripheral wall of the lower nut located above the connecting groove can be located in the annular groove. The height of the annular groove is greater than the distance between the upper part of the connecting groove and the lower nut.

[0014] In this embodiment of the invention, a stepped surface is provided above the mounting tube. The mounting tube above the stepped surface is screwed to the body, and the mounting tube below the stepped surface can be inserted into the mounting hole of the mounting platform. The stepped surface and / or the body can abut against the upper end surface of the mounting platform. The pre-tightening component is located below the mounting platform, and the upper end surface of the upper nut can abut against the lower end surface of the mounting platform. After the mounting tube and the pre-tightening component are clamped together, the mounting tube can rotate synchronously with the pre-tightening component.

[0015] The faucet pre-tightening device of the present invention has the following beneficial effects: 1. Through the cooperation of the two nuts and washers of the pre-tightening component, after the washers are compressed and deformed, the pre-tightening component and the mounting tube reach a tight state, so that when the faucet is rotated, the pre-tightening component and the faucet (mounting tube) rotate synchronously, without affecting the installation stability of the faucet, and achieving the purpose of preventing the faucet from loosening; 2. It can be adapted to round and non-round mounting tubes (plastic and metal), and has strong adaptability. Attached Figure Description

[0016] To more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of the present invention.

[0018] Figure 2 This is a cross-sectional view of the present invention after installation.

[0019] Figure 3 This is a cross-sectional view of the pre-tightening component in this invention.

[0020] Figure 4 This is an exploded view of the pre-tightening component in this invention. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention 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 the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. 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 merely to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, 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," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] 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 invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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 invention according to the specific circumstances.

[0025] 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.

[0026] Referring to the accompanying drawings, a faucet pre-tightening device includes a mating body 100 and an installation tube 200. A pre-tightening component 300 is disposed on the outer periphery of the installation tube. The pre-tightening component includes an upper nut 10 and a lower nut 20 screwed to the outer periphery of the installation tube. A washer 30 is disposed between the upper nut and the lower nut, located on the outer periphery of the installation tube. The washer can be deformed by the upper nut and the lower nut to tighten the installation tube and the pre-tightening component. This invention includes a body, an installation tube, an upper nut, a washer, and a lower nut. The washer is first installed onto the upper nut, and the upper nut, washer, and lower nut are then connected by a limiting structure, as described below for the snap-fit ​​protrusion and connecting groove. Both the upper nut and the lower nut have threads adapted to the installation tube. When tightening the faucet, the lower nut drives the upper nut to rotate. This pre-tightens the faucet through the upper and lower nuts, and the rotation of the lower nut compresses the washer. The deformation of the washer causes the mounting tube, upper nut, and lower nut to clamp together. When the faucet rotates, the mounting tube drives the pre-tightening assembly to rotate as well, thus preventing loosening. The upper and lower nuts are limited by the engagement of the locking protrusion and the connecting groove. The rotation of the lower nut drives the rotation of the upper nut. When the upper nut rotates upwards, it compresses the washer. The deformed washer presses against the mounting tube, causing the mounting tube, upper nut, and lower nut to clamp together and rotate together.

[0027] In use, the upper nut and lower nut are connected and the lower nut can rotate relative to the upper nut. When the upper nut is not rotating on the mounting tube, the lower nut continues to rotate so that the lower nut moves toward the upper nut. In this way, the lower nut can deform the washer that mates with the upper nut by squeezing it.

[0028] Preferably, a first connecting ring 11 is provided below the upper nut, and a snap-fit ​​protrusion 12 is provided on the outer peripheral wall of the first connecting ring. The first connecting ring can be inserted into the upper part of the lower nut. A connecting groove 21 that can cooperate with the snap-fit ​​protrusion is provided on the outer peripheral wall above the lower nut. The cooperation between the snap-fit ​​protrusion and the connecting groove realizes the connection between the upper nut and the lower nut, and forms a pre-tightening assembly with the washer. When the lower nut is rotated, the side of the snap-fit ​​protrusion abuts against the side of the connecting groove, so that the upper nut and the lower nut can rotate synchronously.

[0029] Furthermore, to facilitate the installation of the upper nut onto the lower nut, a guide groove 22 is provided above the lower nut from top to bottom, which can cooperate with the snap-fit ​​protrusion. The guide groove is located above the connecting groove and is connected to the connecting groove. The snap-fit ​​protrusion can rotate and snap into the connecting groove after passing through the guide groove, so as to realize the connection between the upper nut and the lower nut. During installation, the snap-fit ​​protrusion is aligned with the guide groove, so that the upper nut moves towards the lower nut. When the snap-fit ​​protrusion is in the connecting groove and is released from the constraint of the guide groove, the upper nut is rotated (the lower nut remains stationary), so that the snap-fit ​​protrusion rotates synchronously and is confined in the connecting groove, so that the upper nut and the lower nut are connected together.

[0030] Preferably, the arc length of the guide groove is greater than the arc length of the snap-fit ​​protrusion, which facilitates the snap-fit ​​protrusion to move smoothly down from the guide groove. In one embodiment, the arc length of the guide groove is only slightly greater than the arc of the snap-fit ​​protrusion, and the arc of the connecting groove is greater than the arc length of the guide groove. In one embodiment, the arc of the connecting groove is more than twice the arc of the snap-fit ​​protrusion, which ensures that when the upper nut is fixed, the lower nut can rotate relative to the upper nut. Preferably, it can be 3 times or 4 times. The guide groove is located above the connecting groove. Preferably, the guide groove is located above the middle of the connecting groove.

[0031] To improve the overall stability of the structure, at least two annularly distributed snap-fit ​​protrusions are provided on the outer periphery of the first connecting ring. The lower nut is provided with connecting grooves and guide grooves corresponding to the number of snap-fit ​​protrusions. The snap-fit ​​protrusions are evenly distributed on the outer periphery of the first connecting ring, and the connecting grooves and guide grooves are also evenly distributed on the lower nut.

[0032] Preferably, the washer is disposed on the inner circumference of the first connecting ring, so that it can be squeezed and deformed by the upper nut and the lower nut and then tightly clamped to the mounting tube.

[0033] Furthermore, the upper nut and the lower nut are provided with an installation cavity 500, and the washer is disposed in the installation cavity. In use, the upper nut, the lower nut and the washer disposed in the installation cavity form a pre-tightening assembly, and then it is screwed into the outer circumference of the installation tube to make the upper nut, the lower nut and the installation tube threadedly connected.

[0034] In one embodiment of the present invention, the lower nut is provided with a second connecting ring 23; when the first connecting ring is inserted into the lower nut, the first connecting ring can be located on the outer periphery of the second connecting ring, and an installation space 24 for installing the first connecting ring and engaging the protrusion is provided between the outer periphery of the second connecting ring and the upper inner periphery of the lower nut, and the connecting groove is located on the outer periphery of the second connecting ring; the upper nut is provided with a first connecting surface 13 on the inner periphery of the first connecting ring, and the washer is located between the first connecting surface and the upper end surface of the second connecting ring. In use, the first connecting surface abuts against the upper end surface of the washer, and the lower nut continues to rotate, so that the upper end surface of the first connecting ring can squeeze the washer to cause deformation.

[0035] Referring to the accompanying drawings, the height H1 of the connecting groove is greater than the height H2 of the snap-fit ​​protrusion, so as to realize the relative axial movement of the upper nut and the lower nut.

[0036] Preferably, an annular ring 14 is provided on the outer periphery of the upper nut, which can be supported on the upper end surface of the lower nut. An annular groove 15 is formed between the lower end of the annular ring and the upper end of the snap-fit ​​protrusion. The peripheral wall of the lower nut located above the connecting groove can be located in the annular groove. The height H3 of the annular groove is greater than the distance L1 between the upper part of the connecting groove and the lower nut, so that the upper nut and the lower nut can move relative to each other in the axial direction.

[0037] Refer to the attached diagram in the instruction manual. Figure 2 The mounting tube has a stepped surface 210 above it. The mounting tube above the stepped surface is screwed to the body. The mounting tube below the stepped surface can be inserted into the mounting hole 410 of the mounting platform 400. The stepped surface and / or the body can abut against the upper end surface of the mounting platform. The pre-tightening component is located below the mounting platform. The upper end surface of the upper nut can abut against the lower end surface of the mounting platform. After the mounting tube and the pre-tightening component are clamped together, the mounting tube can rotate synchronously with the pre-tightening component.

[0038] 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 techniques or knowledge in related fields. 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 faucet pre-tightening device, comprising a mating body and a mounting tube, characterized in that, A pre-tightening assembly is provided on the outer periphery of the mounting tube. The pre-tightening assembly includes an upper nut and a lower nut screwed to the outer periphery of the mounting tube. A washer is provided between the upper nut and the lower nut. The washer is located on the outer periphery of the mounting tube and can be deformed by the upper nut and the lower nut to tighten the mounting tube with the pre-tightening assembly. The upper nut and the lower nut are connected and the lower nut can rotate relative to the upper nut. A first connecting ring is provided below the upper nut. The washer is located on the inner periphery of the first connecting ring. A snap-fit ​​protrusion is provided on the outer peripheral wall of the first connecting ring. The first connecting ring can be inserted above the lower nut. A connecting groove is provided on the outer peripheral wall above the lower nut to mate with the snap-fit ​​protrusion. An installation cavity is provided between the upper nut and the lower nut, and the washer is located in the installation cavity.

2. The faucet pre-tightening device according to claim 1, characterized in that, The lower nut has a guide groove arranged from top to bottom above it, which can cooperate with the snap-fit ​​protrusion. The guide groove is located above the connecting groove and is connected to the connecting groove. The snap-fit ​​protrusion can rotate and snap into the connecting groove after passing through the guide groove to realize the connection between the upper nut and the lower nut. The arc length of the guide groove is greater than the arc length of the snap-fit ​​protrusion, and the arc length of the connecting groove is greater than the arc length of the guide groove. The guide groove is located above the connecting groove.

3. A faucet pre-tightening device according to claim 2, characterized in that, The first connecting ring has at least two annularly distributed snap-fit ​​protrusions on its outer periphery, and the lower nut has a connecting groove and a guide groove corresponding to the number of snap-fit ​​protrusions.

4. A faucet pre-tightening device according to any one of claims 1-3, characterized in that, The lower nut is provided with a second connecting ring; when the first connecting ring is inserted into the lower nut, the first connecting ring can be located on the outer periphery of the second connecting ring, and an installation space for installing the first connecting ring and the snap-fit ​​protrusion is provided between the outer periphery of the second connecting ring and the upper inner periphery of the lower nut, and the connecting groove is located on the outer periphery of the second connecting ring; the upper nut is provided with a first connecting surface on the inner periphery of the first connecting ring, and the washer is located between the first connecting surface and the upper end face of the second connecting ring.

5. A faucet pre-tightening device according to claim 1, characterized in that, The height of the connecting groove is greater than the height of the snap-fit ​​protrusion, so as to realize the relative axial movement of the upper nut and the lower nut.

6. A faucet pre-tightening device according to claim 1, characterized in that, The upper nut has an annular ring on its outer periphery, which can be supported on the upper surface of the lower nut. The lower end of the annular ring and the upper end of the snap-fit ​​protrusion form an annular groove. The peripheral wall of the lower nut located above the connecting groove can be located in the annular groove. The height of the annular groove is greater than the distance between the upper part of the connecting groove and the lower nut.

7. A faucet pre-tightening device according to claim 1, characterized in that, The mounting tube has a stepped surface above it. The mounting tube above the stepped surface is screwed to the body. The mounting tube below the stepped surface can be inserted into the mounting hole of the mounting platform. The stepped surface and / or the body can abut against the upper end surface of the mounting platform. The pre-tightening component is located below the mounting platform. The upper end surface of the upper nut can abut against the lower end surface of the mounting platform. After the mounting tube and the pre-tightening component are clamped together, the mounting tube can rotate synchronously with the pre-tightening component.

Images