CN210739093U - Nut assembly capable of being assembled and disassembled quickly - Google Patents

Abstract

The utility model is suitable for the technical field of screw caps, and provides a screw cap component which can be rapidly assembled and disassembled, and a water tap with a solenoid at the bottom end can be arranged on a table board, and comprises a manual sleeve, a C-shaped screw cap and a cap; the manual sleeve has a mounting chamber; the C-shaped nut can be accommodated in the mounting cavity and can be limited to move relative to the manual sleeve between a release position and a pressing position along the axial direction, when the C-shaped nut is at the release position, the engaging claw parts are in an elastic expansion state, the screw tube can be allowed to pass through among the engaging claw parts, and when the C-shaped nut is axially pressed and is at the pressing position, the engaging claw parts are in an elastic condensation state, can be engaged with the screw tube and can be synchronously driven along with the rotation of the manual sleeve to be screwed with the screw tube; the cap can be installed on the manual sleeve in a pivot rotating mode, the screw pipe can be smoothly guided to pass through the engagement claw parts through the guide holes, the nut assembly is easy, quick and labor-saving to install and dismantle, and the installation screw lock of the water faucet is stable and firm.

Description

Nut assembly capable of being assembled and disassembled quickly

Technical Field

The utility model relates to a nut technical field, in particular to can supply fast loading and unloading ground to install the tap that the bottom has the solenoid on the nut component on a mesa.

Background

It is well known that a screw tube or a screw rod is usually installed under the existing faucet for bathroom or kitchen, and after the screw tube is passed through a through hole formed on the top of the washbasin or kitchen cabinet, a typical conventional nut is screwed on the screw tube to lock the nut against the bottom wall surface of the top, so as to fix the faucet on the top.

Although the conventional screw cap is commonly used to install and fix the faucet, the installation and disassembly operations are very dirty, and the conventional screw cap must be continuously rotated to be installed or disassembled smoothly due to the narrow space below the general faucet for bathroom or kitchen, so that the operation is inconvenient, time-consuming and labor-consuming. In order to adapt the faucet to table tops of various thicknesses, some screw pipes are designed to be lengthened, so that the rotating operation of the screw cap is more time-consuming and difficult.

To solve the above problems, a number of patent documents disclose a nut capable of being quickly assembled and disassembled, for example, U.S. Pat. No. US 9637893B 2 discloses a nut capable of being quickly assembled and disassembled, which includes an external driving sleeve member and an internal screwing sleeve member, which are disposed with a limiting block and a longitudinal slot therebetween, capable of preventing the external driving sleeve member from being disengaged from each other and limiting the external driving sleeve member from moving relative to the internal screwing sleeve member only between a release position and a pressing position along an axial direction. The internal screw-joint external member is provided with a plurality of engaging claw parts capable of elastically expanding and contracting, and the peripheral wall is provided with a plurality of annular clamping grooves for the limiting clamping blocks to be screwed in. Therefore, the quick assembling and disassembling screw cap can quickly penetrate through the screw pipe when the external driving external member is in the releasing position, the internal screw-joint external member is used for abutting against the table board, the external driving external member is upwards pushed and pressed to the pressing position, each engaging claw part is inwards pressed to be in a condensed state and is engaged with the screw pipe, the limiting clamping block is screwed into the annular clamping groove and drives the internal screw-joint external member to rotate and lock through rotating the external driving external member, and the faucet with the screw pipe at the bottom end can be quickly and firmly installed on the table board.

However, the quick-release nut described above has been found to have the following drawbacks after practical commercialization:

first, the quick-attach and detach nut ideally passes through the threaded tube quickly when the external driving member is in the release position, but it is not always so smooth, mainly because the internal threaded member itself has a plurality of elastically expandable and contractible engaging claw portions, and although the engaging claw portions of the internal threaded member are in the elastically expandable state when the external driving member is in the release position, theoretically, the internal and external threaded members should pass through the threaded tube smoothly, but actually, because the clearance between the external threads of the threaded tube and the internal threads of the engaging claw portions in the elastically expandable state is not large, if the user is slightly misaligned or inclined during operation, the internal and external threads touch and get stuck, which affects the threading operation, and even causes abnormal or inclined engagement, which results in what is commonly called pseudo-locking, Damage of the outer screw thread. In view of the above situation, since the user can only operate the operation by hand feeling during the operation, the smoothness of the operation is affected by human factors such as the familiarity of the user with the operation and the flexibility of the hand operation, and it is not ensured that the operation can be completed quickly and smoothly every time.

Second, although the internal screw external member is provided with a plurality of engaging claw portions, the engaging claw portions can be elastically expanded and contracted by the longitudinal grooves formed therebetween, but the portions where the bottom ends of the engaging claw portions are connected to each other are formed into an approximately annular structure, and the amount of deformation of the elastic expansion and the contraction of each engaging claw portion is greatly reduced by the annular structure, and particularly, the amount of deformation is smaller as the portion is closer to the bottom end of each engaging claw portion, so that only the tip end portion of each engaging claw portion is suitable for the arrangement of internal threads, and the number of threads that can be arranged is still insufficient, and the strength and the firmness of the engagement locking are affected.

Thirdly, the above-mentioned ring-shaped structure also causes that each engaging claw part must apply a large force to be pressed inwards to generate elastic contraction, in other words, when the internal screw-joint external member abuts against the table surface, a user must apply a large pushing force on the external driving external member to overcome the elastic expansion force of each engaging claw part to smoothly push the external driving external member to a pressing position, so that each engaging claw part engages with the screw pipe while generating elastic contraction, and also must rotate the external driving external member in this state to make the limiting block screwed into the ring-shaped slot and drive the internal screw-joint external member to generate screw-joint locking action, so that it can be easily understood that the narrow space under the table surface is originally not beneficial to various operations, and the user must apply a large longitudinal pushing force to the external driving external member and perform rotation operation while maintaining such a longitudinal pushing force state, the screw joint is labor-consuming and not humanized enough, and once the hand is slightly loosened or the force is insufficient, the screw joint locking process cannot be smoothly completed.

Fourth, since the above-mentioned annular structure affects the amount of deformation of the engagement claw portions in elastic expansion and contraction, the inner thread and the outer thread of the screw tube in the elastically expanded state of the engagement claw portions of the internal screw threaded sleeve allow only a small clearance therebetween in terms of the dimensional design, because the inner thread of each engagement claw portion cannot be effectively engaged with the outer thread of the screw tube in the elastically contracted state if the clearance is too large, but the small clearance causes the phenomenon of the inner and outer threads touching and being caught more seriously as mentioned in the first point, which makes it more difficult to perform the quick and smooth threading operation of the quick-attach and detach nut and the screw tube.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a but fast loading and unloading's nut component can install and dismantle the operation with tap bottom screwed pipe more simply, fast and laborsavingly to can ensure that tap's installation spiral shell lock is more firm.

In order to achieve the above object, the present invention provides a nut assembly capable of being quickly assembled and disassembled, for installing a faucet having a screw tube at the bottom end thereof on a table top, wherein the screw tube can pass through an installation hole formed in the table top from top to bottom and protrude beyond the bottom wall surface of the table top by a certain distance; the nut assembly includes:

a manual sleeve having a cylindrical wall with a first end and a second end; a mounting cavity is defined in the cylindrical wall relative to the first end, a conical tightening part is formed on the inner peripheral wall of the mounting cavity, and at least one limiting clamping block is arranged in a protruding manner; the cylindrical wall peripheral wall being formed with a gripping surface at a position opposite to the second end;

a C-shaped nut which is accommodated in the mounting chamber of the manual sleeve and has a C-shaped annular wall and a longitudinal gap between two free ends of the C-shaped annular wall; the C-shaped ring wall is provided with a third end and a fourth end, and at least one longitudinal groove is concavely arranged from the end edge of the third end to the direction of the fourth end so as to form at least two engaging claw parts distributed along the circumferential direction, and a connecting rib is connected between the engaging claw parts at the fourth end and can generate elastic expansion or condensation; the engaging claw parts are respectively provided with a pressing part corresponding to the third end; the inner peripheral wall of the engaging claw part is respectively provided with a section of internal screw thread, the screw pipe can be allowed to pass through a thread hole formed between the internal screw threads under the elastic expansion state, and the screw pipe is mutually engaged with the external screw thread of the screw pipe under the elastic condensation state; the outer peripheral walls of the engaging claw portions are formed with a tapered forced portion opposite to the tapered forced portion of the manual sleeve; at least one longitudinal groove can be used for buckling and limiting a limiting clamping block of the manual sleeve, so that the C-shaped nut is limited to move relative to the manual sleeve only between a release position and a pressing position along the axial direction; the C-shaped nut is normally in the release position, and each engaging claw part is in an elastic expansion state, when the cone-shaped forced part and the cone-shaped forced part are mutually pressed, the C-shaped nut can be moved to the pressing position, and each engaging claw part is in an elastic condensation state; at least one circumferential clamping groove is formed in the peripheral wall of the engaging claw part along the circumferential direction and is communicated with the longitudinal groove adjacent to one side, when the C-shaped nut is located at the pressing position, the limiting clamping block is allowed to be embedded in the C-shaped nut in a rotating mode, so that the C-shaped nut is kept at the pressing position and is pushed and abutted mutually in the circumferential direction, and the C-shaped nut is synchronously pushed and abutted along with the rotation of the manual sleeve; when each engaging claw part of the C-shaped screw cap is in an elastic expansion state, the tooth hole has a first aperture, and when the C-shaped screw cap is in an elastic condensation state, the tooth hole has a second aperture;

a cap rotatably embedded and limited at the first end of the manual sleeve in situ, limited to move relative to the manual sleeve within a predetermined distance range along the axial direction, and provided with a guide hole, wherein the guide hole is provided with a third aperture which is smaller than the first aperture and larger than the second aperture, so that the screw tube can smoothly pass through the tooth hole in an elastic expansion state under the guidance of the guide hole; the cap is provided with an upper abutting annular wall and a lower abutting annular wall around the guide hole, which are respectively used for abutting against and contacting the bottom wall surface of the table board and the abutting part of the C-shaped nut, so that when the C-shaped nut is in the releasing position, the cap can indirectly abut against and contact the bottom wall surface of the table board through the cap, and the cap can also be synchronously linked along with the relative movement of the C-shaped nut to the pressing position.

The C-shaped nut is provided with a limiting bottom edge surface at the position corresponding to the third end by each engaging claw part; the manual sleeve is provided with a limiting top edge surface relative to the first end, so that a limiting clamping block of the manual sleeve can be abutted against the connecting rib limited at the bottom end of the longitudinal groove when the limiting clamping block is relatively displaced downwards in the longitudinal groove, the C-shaped nut is positioned at the release position, and the C-shaped nut is abutted against and limited at the limiting bottom edge surface by the limiting top edge surface when the limiting clamping block is relatively displaced upwards in the longitudinal groove, so that the C-shaped nut is positioned at the compression position.

The C-shaped nut of the nut component capable of being assembled and disassembled quickly is provided with three longitudinal grooves, four engaging claw parts can be formed by the longitudinal grooves and one longitudinal notch, the peripheral walls of the engaging claw parts are respectively provided with one annular clamping groove, and a pushing wall is arranged in each annular clamping groove; the manual sleeve is provided with four limiting clamping blocks which are respectively clamped and limited in the three longitudinal grooves and accommodated in one longitudinal notch, so that the limiting clamping blocks can be respectively and rotatably embedded into the corresponding longitudinal grooves and generate a pushing effect with the corresponding pushing walls in the limiting clamping blocks along the circumferential direction.

The inner peripheral wall of the mounting cavity of the manual sleeve of the nut component capable of being assembled and disassembled quickly is provided with an inclined conical surface which is gradually expanded from bottom to top, so that the conical tightening part can be formed; the C-shaped nut has a tapered surface formed on the outer peripheral wall of each of the engaging claw portions, and the tapered forced portions are formed together.

The quick-detachable nut assembly is characterized in that the cap of the quick-detachable nut assembly is provided with a peripheral wall and an annular wall integrally extending from the top end of the peripheral wall; at least one elastic hook is formed on the peripheral wall, and the upper supporting annular wall, the lower supporting annular wall and the guide hole are respectively defined by the top wall surface, the bottom wall surface and the interior of the annular wall; the outer peripheral wall of the manual sleeve is provided with an annular limiting flange which is used for the elastic clamping hook to be buckled and limited, so that the cap can be rotationally and axially limited at the first end of the manual sleeve.

The annular wall of the cap of the nut component capable of being assembled and disassembled quickly is provided with at least one positioning block which is protruded on the abutting annular wall below the annular wall and can be embedded, clamped and limited in at least one longitudinal groove of the C-shaped nut, so that the cap can synchronously rotate along with the C-shaped nut.

The utility model discloses a but nut component of fast loading and unloading can borrow the guide hole of design on the cap, with the screwed pipe guide from this and pass through this C shape nut smoothly, consequently, can avoid this screwed pipe and the interior screw thread of each meshing claw portion of this C shape nut to bump each other and touch or the jamming, and then ensures that this nut component can wear the cover fast and smoothly on this screwed pipe from top to bottom and slide, and helps tap's quick installation or dismantlement, also needn't worry to take place false locking.

The utility model discloses a but nut assembly of fast loading and unloading can be by this C shape nut be designed to be C shape annular, makes each meshing claw portion have more nimble and great elastic deformation volume when elasticity expansion and condensation, makes the installation more simple and easy quick, can also set up more interior screw teeth to improve intensity, firm nature and the stability of meshing.

The utility model discloses a but nut assembly of fast loading and unloading can be by this C shape nut be designed to be C shape annular, make each engagement claw portion elasticity expansion and condensation more easily, so that the user only need apply less effort, can pass this manual sleeve easily and actuate to this oppression position, make each engagement claw portion mesh in this screwed pipe smoothly, and carry out subsequent rotatory locking operation, consequently, can ensure that tap's installation operation is more light, laborsaving, and accord with humanized operation demand, especially in the narrow and small space of this mesa below.

The utility model discloses a but nut assembly of fast loading and unloading, can be by this C shape nut be designed to be C shape annular, make each meshing claw portion have great elastic deformation volume when elasticity expansion or condensation, therefore, in size design, when each meshing claw portion is in the elasticity expansion state, the outer screw tooth of its interior screw tooth and screwed pipe is allowed to be designed into to have great size clearance each other, and then ensure that this screwed pipe can pass through this guide hole smoothly, but can not touch the interior screw tooth of each meshing claw portion, and simultaneously, can ensure again that each meshing claw portion is under the elasticity condensation state, sufficient elastic condensation deformation volume has, can produce effectively the meshing with the screwed pipe.

The utility model discloses a but fast loading and unloading's nut component, because each meshing claw portion of this nut component is not with its bottom wall face that presses the position and directly support the contact this mesa, but sees through the top of having a great area on this cap and supports the rampart and support the contact, consequently, can borrow by this great contact area that supports, improve laminating and compel tight stationarity and fastness.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a side sectional view of the nut assembly and the solenoid in a mutually locked state in accordance with the present invention;

FIG. 2 is a combination view of the nut assembly of the present invention;

FIG. 3 is an exploded perspective view of the nut assembly of the present invention;

FIG. 4 is a side sectional view of the nut assembly of the present invention, showing the C-nut in the release position;

fig. 5 is a perspective cross-sectional view of the manual sleeve of the present invention;

FIG. 6 is a perspective view of the C-shaped nut of the present invention;

fig. 7 is a bottom perspective view of the cap of the present invention;

FIG. 8 is a side cross-sectional view of the nut assembly of the present invention, showing the C-nut in a compressed position;

fig. 9 is a schematic view showing a state in which the nut assembly of the present invention is rapidly moved up to the slide sleeve along the axial direction of the screw tube until the pressing portions of the engaging claw portions of the C-shaped nut are pressed against the bottom wall surface of the table top, and the C-shaped nut is still in the release position;

FIG. 10 is a schematic view of the nut assembly of FIG. 9 being again urged upwardly to displace the C-nut relatively from the release position to the compression position;

fig. 11 is a schematic diagram illustrating the manual sleeve of fig. 10 being rotated in the locking direction to make each limiting block slide into each corresponding circumferential slot and then abut against each abutting wall, and at the same time, to drive the C-shaped nut to rotate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the patent. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.

As shown in fig. 1 to 4, the present invention provides a first embodiment of a nut assembly that can be quickly assembled and disassembled, the nut assembly 1 is mainly used to install a faucet on a table top 2, the faucet can be a typical conventional kitchen faucet or a bath faucet, a screw tube 3 is usually provided under the faucet, and the faucet can pass through a mounting hole 2a of the table top 2 downward and protrude beyond a bottom wall 2b of the table top 2 by a certain distance.

The nut assembly 1 comprises a manual sleeve 10, a C-shaped nut 20 and a cap 30; wherein:

as shown in fig. 5, the manual operated socket 10 has a cylindrical wall 11, the cylindrical wall 11 has a first end 111 and a second end 112; a mounting chamber 12 is defined in the cylindrical wall 11 at a position opposite to the first end 111, and a tapered tightening part 121 is formed on the inner peripheral wall of the mounting chamber 12 and is provided with at least one limiting clamping block 122 in a protruding manner; the outer peripheral wall of the cylindrical wall 11 is formed with a gripping surface 13 opposite the second end 112.

As shown in fig. 6, the C-nut 20, which is adapted to be received in the mounting chamber 12 of the manual sleeve 10, has a C-shaped annular wall 21 and a longitudinal gap 22 between two free ends of the C-shaped annular wall 21; the C-shaped annular wall 21 has a third end 211 and a fourth end 212, and at least one longitudinal groove 213 is recessed from the end edge of the third end 211 toward the fourth end 212 to form at least two engaging claw portions 23 distributed along the circumferential direction, wherein the engaging claw portions 23 are connected to each other at the fourth end 212 to form a connecting rib 214 for elastic expansion or condensation; the engaging claw portions 23 are respectively formed with a pressing portion 231 corresponding to the third end 211; inner screw threads 232 are respectively formed on the inner peripheral wall of the engaging claw portion 23, and allow the screw tube 3 to pass through a thread hole 230 formed between the inner screw threads 232 in the elastically expanded state, and engage with the outer screw threads 3a of the screw tube 3 in the elastically contracted state, as shown in fig. 8; the outer peripheral walls of the engaging pawl portions 23 are formed together with a tapered pressing portion 233 opposite to the tapered pressing portion 121 of the manual sleeve 10, as shown in fig. 4; at least one of the longitudinal grooves 213 is for the position-limiting latch 122 of the manual sleeve 10 to slide through the corresponding connecting rib 214 and then to be locked and limited therein, so that the C-nut 20 can only be limited axially between a release position P1 and a pressing position P2 to move relative to the manual sleeve 10; the C-nut 20 is normally in the release position P1 when not subjected to external force, as shown in fig. 4 and 9, and each of the engaging claw portions 23 is in an elastically expanded state, and when the tapered pressed portion 233 and the tapered pressing portion 121 are pressed against each other, the C-nut 20 can be moved to the pressing position P2, as shown in fig. 8 and 10, and each of the engaging claw portions 23 is in an elastically contracted state; at least one of the engaging claws 23 has a circumferential groove 234 formed on the outer circumferential wall thereof to communicate with the adjacent longitudinal groove 213 on one side, so as to allow the limiting latch 122 to be rotatably inserted when the C-nut 20 is at the pressing position P2, thereby forming a mutual locking action in the axial direction, as shown in fig. 1, so that the C-nut 20 is held at the pressing position P2 and a mutual pushing action in the circumferential direction, as shown in fig. 11, so that the C-nut 20 is synchronously pushed and driven with the rotation of the manual sleeve 10; the C-shaped nut 20 has a first hole diameter D1 in its tooth hole 230 when each engaging claw 23 is in an elastically expanded state, and a second hole diameter D2 in its tooth hole 230 when in an elastically contracted state.

As shown in fig. 7, the cap 30 is rotatably embedded and limited in the first end 111 of the manual sleeve 10 in situ, and is limited to move relative to the manual sleeve 10 within a predetermined distance range along the axial direction, and has a guiding hole 300, the guiding hole 300 has a third aperture D3, which is smaller than the first aperture D1 and larger than the second aperture D2, such that the screw tube 3 can smoothly pass through the tooth hole 230 in the elastically expanded state by the guidance of the guiding hole 300; the cap 30 is formed with an upper abutting wall 301 and a lower abutting wall 302 around the guiding hole 300 for abutting against and contacting the bottom wall 2b of the table top 2 and the abutting portion 231 of the C-shaped nut 20, respectively, so that when the C-shaped nut 20 is at the release position P1, the cap 30 can indirectly abut against and contact the bottom wall 2b of the table top 2, and the cap 30 can also be linked together with the C-shaped nut 20 moving to the pressing position P2.

In the present embodiment, each of the engaging claw portions 23 of the C-nut 20 is provided with a stopper bottom edge surface 235 at a position opposite to the third end 211; the manual sleeve 10 is formed with a top edge surface 113 at a position opposite to the first end 111, so that the limiting block 122 of the manual sleeve 10 can abut against the connecting rib 214 at the bottom end of the longitudinal groove 213 when moving relatively downward in the longitudinal groove 213, as shown in fig. 4 and 9, the C-shaped nut 20 is located at the release position P1, and when moving relatively upward in the longitudinal groove 213, the C-shaped nut 20 can abut against the bottom edge surface 235 by the top edge surface 113, as shown in fig. 8 and 10, the C-shaped nut 20 is located at the pressing position P2, so that the C-shaped nut 20 can be ensured to move relative to the manual sleeve 10 between the release position P1 and the pressing position P2.

Preferably, the C-shaped nut 20 has three longitudinal grooves 213, four engaging claw portions 23 can be formed by the longitudinal grooves 213 and one longitudinal notch 22, the circumferential walls of the engaging claw portions 23 are respectively provided with one circumferential groove 234, and each circumferential groove 234 is provided with a pushing wall 234 a; the manual sleeve 10 is provided with four limiting blocks 122, which are respectively buckled and limited in the three longitudinal grooves 213 and accommodated in one of the longitudinal notches 22, so that the limiting blocks 122 can be respectively and rotatably embedded in the corresponding longitudinal grooves 213, and generate a pushing action with the corresponding pushing walls 234a along the circumferential direction, as shown in fig. 11.

In this embodiment, the inner peripheral wall of the installation cavity 12 of the manual operated sleeve 10 is formed with an inclined conical surface gradually expanding from bottom to top, so as to form the conical tightening portion 121; the C-shaped nut 20 has an inclined tapered surface 236 formed on the outer peripheral wall of each of the engaging claw portions 23, which together form the tapered forced portion 233.

In the present embodiment, the cap 30 has a peripheral wall 31, and an annular wall 32 integrally extending from the top end of the peripheral wall 31; the peripheral wall 31 is formed with at least one elastic hook 311, and the top wall surface, the bottom wall surface and the interior of the annular wall 32 define the upper supporting annular wall 301, the lower supporting annular wall 302 and the guiding hole 300, respectively; an annular limiting flange 110 is protruded from the outer peripheral wall of the manual sleeve 10 opposite to the first end 111 for hooking and limiting the elastic hook 311, as shown in fig. 4 and 7, so that the cap 30 can be axially and rotatably limited at the first end 111 of the manual sleeve 10.

Preferably, the peripheral wall 31 of the cap 30 of the present embodiment is symmetrically provided with two elastic hooks 311, so as to ensure the assembling reliability.

In order to help the user firmly grip and apply force, the grip surface 13 of the manual sleeve 10 of the present embodiment is recessed with a plurality of anti-slip grooves 131 extending along the axial direction. In addition, the manual sleeve 10 has a long cylindrical design below the first end 111 except for the mounting chamber 12, which is designed to provide a sufficient gripping area for a user to grip and apply force easily, and the hand can easily touch the mounting chamber without being too close to the bottom of the table.

In the embodiment, the annular wall 32 of the cap 30 is protruded with at least one positioning block 321 below the annular wall 302 for being inserted and limited in at least one longitudinal groove 213 of the C-shaped nut 20, so that the cap 30 can rotate synchronously with the C-shaped nut 20. Preferably, four positioning blocks 321 are protruded from the lower abutting annular wall 302, as shown in fig. 7, so as to be respectively embedded and limited in the three longitudinal grooves 213 and one longitudinal notch 22. It can be easily imagined that, by the design of the positioning block 321 and the at least one longitudinal groove 213 engaging with each other for limiting, when the user rotates the manual sleeve 10 to drive the C-shaped nut 20 to rotate, the cap 30 is also driven to rotate synchronously, so that the upper propping ring wall 301 and the bottom wall surface 2b of the table top 2 generate axial tightening and relative rotation simultaneously. In other words, without the design of the positioning block 321, when the tightening action between the cap 30 and the bottom wall 2b of the table 2 exceeds a certain frictional resistance, the cap 30 and the bottom wall 2b of the table 2 will not rotate relatively, but the lower abutting ring wall 302 of the cap 30 and the abutting portion 231 of the C-shaped nut 20 rotate relatively.

To clearly understand how the nut assembly 1 of the present embodiment can be easily and quickly assembled and disassembled, the operation steps are briefly described as follows:

a. the screw pipe 3 of the water tap is firstly penetrated through the mounting hole 2a of the table-board 2.

b. After the guiding hole 300 of the screw cap 30 above the nut component 1 is aligned with the bottom end of the screw tube 3, the nut component 1 can be easily and quickly slid on the screw tube 3 from bottom to top by the guiding of the guiding hole 300 until the top abutting ring wall 301 of the cap 30 abuts against the bottom wall surface 2b of the table top 2, as shown in fig. 9.

It should be noted that, in the condition that the nut assembly 1 is not installed, the engaging claw portions 23 of the C-shaped nut 20 can naturally force the C-shaped nut 20 to be in the releasing position P1 by virtue of the elastic expansion characteristic thereof, and when the engaging claw portions 23 are in the releasing position P1, the first aperture D1 formed by the tooth hole 230 is larger than the third aperture D3 formed by the guiding hole 300 of the cap 30 and is larger than the diameter formed by the outer tooth 3a of the screw tube 3, so that the screw tube 3 passing through the guiding hole 300 cannot be in contact with the inner tooth 232 of the engaging claw portion 23 of the releasing position P1, thereby effectively avoiding the unsmooth or stagnation phenomenon caused by the contact between the inner tooth and the outer tooth of the screw tube during the threading operation of the conventional quick-release nut and screw tube.

c. The manual sleeve 10 is then slightly forced upward, so that the C-nut 20 can move axially relative to the manual sleeve 10 until it is in the pressing position P2, as shown in fig. 10.

It should be noted that, when the upper abutting ring wall 301 of the cap 30 abuts against and contacts the bottom wall 2b of the table top 2, since the cap 30 cannot move upward along the screw tube 3 any more and the abutting portion 231 of the C-shaped nut 20 and the lower abutting ring wall 302 of the cap 30 abut against and contact each other, the C-shaped nut 20 cannot move upward along the screw tube 3 by purpose, so that the C-shaped nut 20 and the manual sleeve 10 move relative to each other as long as the user applies a slight upward force, it can be easily understood that the limiting latch 122 on the manual sleeve 1 will move upward axially along the corresponding longitudinal grooves 213, and simultaneously the tapered pressing portion 121 in the installation cavity 12 applies a pushing force to the tapered pressed portion 233 formed by the engaging claws 23 of the C-shaped nut 20, so that the engaging claws 23 are gradually retracted from an elastically expanded state to a condensed state, until the inner threads 232 of the respective engaging claw portions 23 are engaged with the outer threads 3a of the screw tube 3. The top limit edge surface 113 of the manual sleeve 10 may also abut against and limit the bottom limit edge surface 235 of each engaging claw 23 of the C-nut 20.

d. The manual sleeve 10 is rotated to secure the faucet to the deck 2.

When the C-shaped nut 20 relatively moves to the pressing position P2, the manual sleeve 10 can be rotated in the locking direction, so that each limiting block 122 respectively slides into each corresponding annular groove 234 in a rotating manner and abuts against each corresponding abutting wall 234a therein, as shown in fig. 11, the C-shaped nut 20 and the cap 30 are driven to rotate synchronously, and further a screwing and locking effect is generated on the solenoid 3, so that the abutting annular wall 301 above the cap 30 is more tightly attached and pressed against the bottom wall surface 2b of the table top 2, as shown in fig. 1, and thus, the faucet can be smoothly installed and locked on the table top 2.

Similarly, when the user wants to detach the faucet, he or she only needs to rotate the manual sleeve 10 in the reverse direction to make each limit latch 122 rotate to separate from each corresponding circumferential slot 234 and slide into each corresponding longitudinal groove 213, so that the user can automatically move the manual sleeve 10 downward by the elastic expansion force generated by each engaging pawl 23 of the C-shaped nut 20, in conjunction with the structural design of the tapered tightening part 121 and the tapered forced part 233, to restore the C-shaped nut 20 to the loose position P1, and naturally, the user can assist the downward light pulling force to accelerate the reset of the C-shaped nut 20, so that each engaging pawl 23 can gradually expand outward from the elastic contracted state to an expanded state, so that the inner thread 232 thereof naturally separates from the outer thread 2a of the threaded pipe 3, and the nut assembly 1 can easily and quickly slide downward to separate from the threaded pipe 3, thereby completing the quick disassembly operation of the water faucet.

As can be seen from the above description, the nut assemblies 1 and 1a of the present invention have the following features and effects:

first, the cap 30 of the nut assembly 1 is designed with a guiding hole 300, so that the screw tube 3 can be guided by the guiding hole to smoothly pass through the C-shaped nut 20, thereby reliably preventing the mutual contact or clamping of the inner threads 232 of the engaging claws 23 of the screw tube 3 and the C-shaped nut 20, further ensuring that the nut assembly 1 can be quickly and smoothly slipped up and down the screw tube 3, facilitating quick installation or removal of the faucet, and avoiding the worry of false locking.

Second, the C-shaped nut 20 is designed in a C-shaped ring shape, so that the engaging claw portions 23 can be elastically expanded and contracted with a greater elastic deformation amount, so that the installation is easier and faster, and more internal threads 232 can be provided to improve the engaging strength, the reliability and the stability, compared with the conventional structure.

Thirdly, since the C-shaped nut 20 is designed into a C-shaped ring shape, the engaging claws 23 can be expanded and contracted elastically more easily, so that the user can easily push the C-shaped nut 20 to the pressing position P2 with a small force, so that the engaging claws 23 can be engaged with the screw tube 3 smoothly, and the subsequent rotational locking operation can be performed, thereby ensuring that the installation operation of the faucet is more convenient and labor-saving, and meets the requirement of humanized operation, especially in a narrow space under the table top 2.

Fourthly, since the C-shaped nut 20 is designed in a C-shaped ring shape, the engaging claw portions 23 can be elastically expanded and contracted with a large amount of elastic deformation, and therefore, in terms of the size design, when the engaging claw portions 23 are in an elastically expanded state, the inner thread 232 thereof and the outer thread 3a of the screw tube 3 are allowed to be designed to have a large size gap therebetween, thereby ensuring that the screw tube 3 can smoothly pass through the guide hole 300 without touching the inner thread 232 of the engaging claw portions 23, and at the same time, the engaging claw portions 23 can be ensured to have a sufficient amount of elastic deformation by elastic contraction in an elastically contracted state, and can be effectively engaged with the screw tube 3.

Fifth, since each engaging claw 23 of the nut assembly 1 is not directly abutted against the bottom wall surface 2b of the table top 2 by the abutting portion 231 thereof, but is abutted against the annular wall 301 through the upper abutting portion with a larger area of the cap 40, the smoothness and the firmness of the fitting and the pressing can be improved by the larger abutting contact area.

While the present invention has been described in detail and with reference to the embodiments thereof, it will be apparent to one skilled in the art that various alternatives and modifications can be made in accordance with the above description; accordingly, all such alterations and modifications are intended to be included within the spirit and scope of the invention.

Claims (9)

1. A nut component capable of being assembled and disassembled quickly is used for installing a water faucet with a screw pipe at the bottom end on a table top, wherein the screw pipe can penetrate through an installation hole formed in the table top from top to bottom and protrudes out of the bottom wall surface of the table top for a certain distance; characterized in that, the nut component includes:

a manual sleeve having a cylindrical wall with a first end and a second end; a mounting cavity is defined in the cylindrical wall relative to the first end, a conical tightening part is formed on the inner peripheral wall of the mounting cavity, and at least one limiting clamping block is arranged in a protruding manner; said cylindrical wall peripheral wall being formed with a gripping surface opposite said second end;

the C-shaped nut can be accommodated in the mounting cavity of the manual sleeve and is provided with a C-shaped annular wall and a longitudinal notch positioned between two free ends of the C-shaped annular wall; the C-shaped ring wall is provided with a third end and a fourth end, at least one longitudinal groove is concavely arranged from the end edge of the third end to the direction of the fourth end so as to form at least two engaging claw parts distributed along the circumferential direction, and a connecting rib is connected between the engaging claw parts at the fourth end and can generate elastic expansion or condensation; the engaging claw parts are respectively provided with a pressing part corresponding to the third end; the inner peripheral wall of the engaging claw part is respectively provided with a section of internal screw thread, the screw pipe can be allowed to pass through a thread hole formed between the internal screw threads under the elastic expansion state, and the screw pipe is mutually engaged with the external screw thread of the screw pipe under the elastic condensation state; the outer peripheral walls of the engaging claw portions are formed with a tapered forced portion opposite to the tapered forced portion of the manual sleeve; at least one longitudinal groove can be used for buckling and limiting a limiting clamping block of the manual sleeve, so that the C-shaped nut is limited to move relative to the manual sleeve only between a release position and a pressing position along the axial direction; the C-shaped nut is normally in the release position, and each engaging claw portion is in an elastically expanded state, and when the tapered forced portion and the tapered forced portion are mutually pressed, the C-shaped nut can be moved to the pressing position, and each engaging claw portion is in an elastically contracted state; at least one circumferential clamping groove is formed in the peripheral wall of the engaging claw part along the circumferential direction and is communicated with the longitudinal groove adjacent to one side of the engaging claw part, when the C-shaped nut is located at the pressing position, the limiting clamping block is allowed to be rotatably embedded, so that mutual buckling action is formed in the axial direction, the C-shaped nut is kept at the pressing position and is mutually pushed and abutted in the circumferential direction, and the C-shaped nut is synchronously pushed and abutted along with the rotation of the manual sleeve; when each engaging claw part of the C-shaped screw cap is in an elastic expansion state, a tooth hole of the C-shaped screw cap has a first aperture, and when the C-shaped screw cap is in an elastic condensation state, the tooth hole of the C-shaped screw cap has a second aperture;

the cap can be nested and limited at the first end of the manual sleeve in a rotating mode in situ, is limited to move relative to the manual sleeve within a preset distance range along the axial direction, and is provided with a guide hole, and the guide hole is provided with a third hole diameter which is smaller than the first hole diameter and larger than the second hole diameter, so that the screw tube can smoothly pass through the tooth hole in an elastic expansion state under the guidance of the guide hole; the cap is provided with an upper abutting annular wall and a lower abutting annular wall around the guide hole, the upper abutting annular wall and the lower abutting annular wall are respectively used for abutting and contacting the bottom wall surface of the table board, and the abutting part of the C-shaped nut, so that when the C-shaped nut is in the releasing position, the cap can indirectly abut and contact the bottom wall surface of the table board through the cap, and the cap is synchronously linked along with the relative movement of the C-shaped nut to the pressing position.

2. The quick nut assembly according to claim 1, characterized in that each of said C-nut engaging claw portions is provided with a stopper bottom edge surface at a position opposite to said third end, respectively; the manual sleeve is provided with a limiting top edge surface relative to the first end, so that a limiting clamping block of the manual sleeve can be abutted against a connecting rib limited at the bottom end of the longitudinal groove when the limiting clamping block is relatively displaced downwards in the longitudinal groove, the C-shaped nut is positioned at the release position, and the limiting top edge surface is abutted against and limited at the limiting bottom edge surface when the limiting clamping block is relatively displaced upwards in the longitudinal groove, so that the C-shaped nut is positioned at the compression position.

3. The nut assembly according to claim 1, wherein said C-shaped nut has three of said longitudinal grooves, four of said engaging claws are formed by said longitudinal grooves and one of said longitudinal notches, and peripheral walls of said engaging claws are respectively provided with one of said circumferential engaging grooves, each of said circumferential engaging grooves being provided with a pushing wall; the manual sleeve is provided with four limiting clamping blocks which are respectively clamped and limited in the three longitudinal grooves and accommodated in one longitudinal notch, so that the limiting clamping blocks can be respectively and rotatably embedded into the corresponding longitudinal grooves and can generate a pushing effect with the corresponding pushing walls in the limiting clamping blocks along the circumferential direction.

4. The nut assembly of claim 1 wherein the mounting cavity of said manual sleeve has an interior wall defining a tapered surface that tapers from bottom to top to define said tapered tightening portion; the outer peripheral wall of each engaging claw part of the C-shaped nut is respectively formed with an oblique conical surface which can jointly form the conical forced part.

5. The quick-release nut assembly according to claim 1 wherein said cap has a peripheral wall and an annular wall integrally extending from a top end of said peripheral wall; at least one elastic hook is formed on the peripheral wall, and the upper supporting annular wall, the lower supporting annular wall and the guide hole are respectively defined by the top wall surface, the bottom wall surface and the interior of the annular wall; the outer peripheral wall of the manual sleeve is provided with an annular limiting flange which is used for the elastic clamping hook to be buckled and limited, so that the cap can be axially limited at the first end of the manual sleeve in a rotating manner.

6. The nut assembly of claim 5 wherein the peripheral wall of the cap is symmetrically provided with two resilient hooks.

7. The quick release nut assembly according to claim 1 wherein said gripping surface is recessed with a plurality of axially extending stop grooves.

8. The nut assembly of claim 5 wherein the annular wall of the cap has at least one locating block protruding from the lower abutting wall for engaging and retaining in at least one longitudinal groove of the C-nut, such that the cap can rotate synchronously with the C-nut.

9. The quick release nut assembly according to claim 3 wherein said cap has a peripheral wall and an annular wall integrally extending from a top end of said peripheral wall; at least one elastic hook is formed on the peripheral wall, and the upper supporting annular wall, the lower supporting annular wall and the guide hole are respectively defined by the top wall surface, the bottom wall surface and the interior of the annular wall; an annular limiting flange is arranged on the outer peripheral wall of the manual sleeve in a protruding mode relative to the first end and used for buckling and limiting the elastic clamping hook, so that the cap can be rotationally and axially limited at the first end of the manual sleeve; the annular wall of the cap is provided with four positioning blocks protruding from the abutting annular wall below the annular wall, and the four positioning blocks can be respectively embedded, clamped and limited in the three longitudinal grooves and one longitudinal notch of the C-shaped nut, so that the cap can synchronously rotate along with the C-shaped nut.

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