CN218786878U - Locking device of pull hose and pull type faucet - Google Patents

Abstract

The disclosure provides a locking device for a pull-out hose and a pull-out faucet. The locking device is suitable for installing the end of intaking at tap and overlap and establish on the pull hose to the configuration can switch between the release state that allows the pull hose to remove and the locking state that the locking pull hose removed, locking device includes: a body; a trigger sleeve attached to the body and configured to be movable in an axial direction of the body; and a locking assembly disposed within the body and configured to move in the axial direction and rotate about the axial direction in response to movement of the trigger sleeve to switch from the released state to the locked state. This disclosed locking device of pull hose drives the locking subassembly motion through the removal of triggering the cover, and then realizes the locking or the release to the pull hose, simple structure, and easy and simple to handle is reliable and general match nature is high, can be applied to the pull formula tap of multiform, uses lightly comfortablely.

Description

Locking device of pull hose and pull type faucet

Technical Field

The present disclosure relates generally to sanitary ware, and more particularly to a locking device for a pull-out hose of a pull-out faucet, and a pull-out faucet having the same.

Background

Existing faucets are often permanently mounted and inconvenient to operate when a user needs to use water at a distance from the faucet. To solve this problem, a pull-out faucet has been developed, in which a faucet spout is connected to one end of a pull-out hose, the other end of the pull-out hose is connected to a water outlet of a valve element, and water flows through the valve element to the pull-out hose and is finally discharged through the faucet spout.

The drawing type faucet has the advantages that the drawing type faucet can be drawn and fixed at present, and convenience is brought to people. However, when the water outlet nozzle needs to be pulled out for a long time for cleaning, the water outlet nozzle cannot be locked at any position, and the gravity of the balancing weight needs to be overcome all the time for use, so that fatigue is generated in the use process, and the cleaning operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

The purpose of this disclosure is to propose a locking device for locking a pull-out hose in order to solve the problems existing in the prior art. This locking device can be with pull hose pull automatic locking after target in place, and the person of facilitating the use uses to can avoid the improper locking that unexpected pull leads to, promote user experience satisfaction.

To this end, according to the present disclosure, there is provided a locking device of a drawn hose adapted to be installed at a water inlet end of a faucet and fitted over the drawn hose, and configured to be switchable between a release state allowing movement of the drawn hose and a locking state locking the movement of the drawn hose, the locking device comprising: a body; a trigger sleeve attached to the body and configured to be movable in an axial direction of the body; and a locking assembly disposed within the body and configured to move in the axial direction and rotate about the axial direction in response to movement of the trigger sleeve to switch from the released state to the locked state.

Embodiments of the present disclosure may further include any one or more of the following alternatives, according to the above technical concept.

In certain alternatives, the locking assembly includes a swivel sleeve and a lock disposed on the swivel sleeve, the lock configured to be movable toward the swivel sleeve to lock the pull-out hose or away from the swivel sleeve to release the pull-out hose.

In some alternatives, the circumferential wall of the rotating sleeve is provided with an opening to receive and support the locking piece.

In some alternatives, the locking assembly further comprises a stop collar adapted to urge the lock block towards the inside of the rotary sleeve and to hold the lock block in the locked state, the stop collar being provided with a guide surface and a holding surface arranged towards the lock block, the lock block being provided with a corresponding mating surface.

In some optional forms, the locking assembly further comprises a sliding sleeve attached to the body and provided with a sliding rail on an inner side wall for the rotation sleeve to move and rotate, and a sliding block cooperating with the sliding rail on an outer side wall of the rotation sleeve, wherein the sliding rail defines a first stop portion in the locking state and a second stop portion in the releasing state, and the first stop portion and the second stop portion are circumferentially staggered.

In certain alternatives, the first stop is configured as a locking tooth having a guide ramp and the second stop is configured as a guide slot extending parallel to the axial direction.

In some alternatives, the trigger sleeve is attached to the sliding sleeve and is provided with a trigger end facing the outside of the body and a drive end facing the rotary sleeve, wherein a drive block is provided on an outer side wall of the trigger sleeve adjacent to the drive end, the drive block being adapted to move along the guide groove and drive the rotary sleeve.

In some optional forms, the limiting sleeve is limited in the sliding sleeve and is provided with a limiting tooth facing the sliding rail.

In certain alternatives, the locking assembly further comprises a resilient member disposed between the rotating sleeve and a stop boss within the body to apply a return force to the rotating sleeve.

In certain alternatives, the locking assembly further comprises a bushing interposed between the resilient member and the rotating sleeve.

In certain alternatives, the locking device further comprises a mounting assembly disposed at one end of the body adapted to be mounted to a water inlet end of a faucet, the mounting assembly comprising: the water faucet comprises a connecting sleeve, a water inlet pipe, a water outlet pipe and a water outlet pipe, wherein the connecting sleeve is adapted to a water inlet end of the water faucet and provided with a first joint part and a second joint part which are mutually butted, and the first joint part and the second joint part are provided with through holes; the threaded fastener penetrates through the through hole to fix the connecting sleeve at the water inlet end; and a lever member attached to the first engagement portion or the second engagement portion and configured to be switchable between a separated state in which the first engagement portion and the second engagement portion are urged away from each other and an engaged state in which the first engagement portion and the second engagement portion are urged to be fitted to each other.

In certain alternatives, the mounting assembly further includes a resilient clip attaching the lever member to the first or second engagement portion.

In certain alternatives, the lever member is provided with a tap lever, and a release lever connected to the tap lever by a connecting rod, the first or second engagement portion is provided with a notch to accommodate the connecting rod and the release lever, and rotational movement of the tap lever relative to the first or second engagement portion causes the release lever to urge the first and second engagement portions away from or into abutment with each other.

In some alternatives, the trip lever and the trip lever are parallel to each other and extend in the same direction.

In some alternatives, the distal end of the release rod is provided with an abutment surface that mates with the threaded fastener profile.

In some alternatives, the nipple is integrally formed at an end of the body.

According to another aspect of the present disclosure, there is also provided a pull-out faucet including: the water tap comprises a tap main body and a drawing hose, wherein the drawing hose penetrates through the tap main body, one end of the drawing hose is connected with a water outlet nozzle, and the other end of the drawing hose is provided with a balancing weight; and a locking device for the pull-out hose as described above, which locking device is arranged adjacent to the weight.

In certain alternatives, the trigger sleeve is triggered by the weight block to move in an axial direction of the body.

In certain alternatives, the faucet further comprises a water inlet and outlet pipe connected into the faucet body via the body.

This disclosed locking device of pull hose drives the locking subassembly motion through the removal of triggering the cover, and then realizes the locking or the release to the pull hose, simple structure, and easy and simple to handle is reliable and general match nature is high, can be applied to the pull formula tap of multiform, uses lightly comfortablely. When being applied to pull formula tap, the pull hose that is put in place by the pull is automatic to be locked, need not the staff and bears the gravity of balancing weight, realizes free pull and locking, promotes user's use and experiences.

Drawings

Other features and advantages of the present disclosure will be better understood from the following detailed description of alternative embodiments, taken in conjunction with the accompanying drawings in which like characters represent the same or similar parts, and in which:

fig. 1A is a schematic view of a locking device of a drawn-out hose according to an embodiment of the present disclosure, and shows the drawn-out hose fitted in the locking device;

fig. 1B is a schematic view of the locking device of the pull-out hose shown from another angle;

FIG. 2A is a schematic plan view of a locking device for pulling the hose;

FIG. 2B isbase:Sub>A schematic cross-sectional view taken along A-A of FIG. 2A;

FIG. 3A is an exploded view of the locking device of the pull-out hose;

fig. 3B is an exploded view of the locking device of the pull-out hose shown from another angle;

FIG. 3C is a sectional view similar to FIG. 3B, showing the locking device of the pull-out hose;

FIG. 4A is a schematic view of the pull-out hose locking device shown from another angle, showing the mounting assembly and the lever member in an engaged state;

FIG. 4B is a view similar to FIG. 4A showing an exploded view of the mounting assembly;

FIG. 4C is a cross-sectional view similar to FIG. 4A showing the mounting assembly;

FIG. 4D is a cutaway exploded view similar to FIG. 4B showing the mounting assembly;

FIG. 5A is similar to FIG. 4A and shows the lever member in a disengaged state;

FIG. 5B is an exploded view similar to FIG. 5A showing the mounting assembly;

FIG. 6A is a schematic view of a pull-out faucet employing a locking device for a pull-out hose, showing a release condition allowing movement of the pull-out hose;

FIG. 6B is an enlarged view of portion C of FIG. 6A;

FIG. 6C is an enlarged schematic view of portion D of FIG. 6B;

fig. 7A is a schematic view of a pull-out faucet applying a locking device of a pull-out hose, showing a locked state locking movement of the pull-out hose;

FIG. 7B is an enlarged view of section E of FIG. 7A;

fig. 7C is an enlarged schematic view of portion F in fig. 7B.

Detailed Description

The practice and use of the embodiments are discussed in detail below. It should be understood, however, that the specific embodiments discussed are merely illustrative of specific ways to make and use the disclosure, and do not limit the scope of the disclosure. The description herein of the structural positions of the respective components, such as the directions of upper, lower, top, bottom, etc., is not absolute, but relative. When the respective components are arranged as shown in the drawings, these direction expressions are appropriate, but when the positions of the respective components in the drawings are changed, these direction expressions are changed accordingly.

Herein, the expressions "comprising", "including", and "having", and the like, which are synonymous, are open-ended and do not exclude additional, unrecited elements, steps or components. The expression "consisting of 8230comprises" excludes any element, step or ingredient not specified. The expression "consisting essentially of 8230comprises means that the scope is limited to the specified elements, steps or components, plus optional elements, steps or components that do not materially affect the basic and novel characteristics of the claimed subject matter. It is to be understood that the expression "comprising" covers the expressions "consisting essentially of and" consisting of 823030303030303030the expression "comprises" or "comprises" is used.

As used herein, unless specifically limited otherwise, "mounted," "connected," "attached," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral units; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms herein can be understood as the case may be, to one skilled in the art.

As used herein, the terms "first," "second," and the like, do not denote any order or importance, but rather are used to distinguish one element from another.

Herein, the axial direction of the tubular or annular member refers to a direction along the central axis of the member, the circumferential direction of the tubular or annular member refers to a direction along the circumferential length of the member, and the radial direction of the tubular or annular member refers to a direction passing through the central axis of the member and perpendicular to the axial direction of the member.

At present, pull-out faucets are increasingly well known by consumers and become a mainstream development trend due to convenient use of the pull-out faucets, however, as already described, the pull-out hose of the pull-out faucet is usually provided with a balancing weight, and the pulling-out faucet needs to continuously overcome the gravity of the balancing weight by hands in the process of pulling-out use, so that fatigue can be generated after long-time operation.

From this, this disclosure provides a locking device of pull hose, through setting up to switching between the release state that allows the pull hose to remove and the locking state that locking pull hose removed, realize the free pull and the automatic locking of pull hose, convenience of customers operation promotes and uses experience.

Based on the above concept, referring to one embodiment exemplarily shown in fig. 1A to 2B, the locking device of the present disclosure includes a body 10 and a trigger sleeve 20, and a drawing hose 40 is threaded through the body 10 and the trigger sleeve 20. The trigger sleeve 20 is arranged at the first end 11 of the body 10, i.e. towards one end of the weight, when the locking device is applied to a pull-out faucet, so as to be suitable for being triggered by the weight to move along the axial direction B of the body 10. The second end 12 of the body 10 is also provided with a mounting assembly adapted to be mounted to the water inlet end of a faucet, as will be described in detail below.

According to the present disclosure, a locking assembly is provided within the body 10, the locking assembly being configured to move in and rotate about the axial direction B in response to movement of the trigger sleeve 20 to switch from a released state to a locked state. This movement advantageously reduces the axial dimension of the locking device and, by activating the sleeve to cause movement of the locking assembly, prevents accidental locking of the pull-out hose by incorrect operation.

In certain embodiments, as shown in fig. 2B to 3C, the locking assembly includes at least a rotating sleeve 61 and a lock 64 disposed on the rotating sleeve 61, wherein the lock 64 is configured to be movable toward the rotating sleeve 61 to lock the pull-out hose 40 or away from the rotating sleeve 61 to release the pull-out hose 40. In some embodiments, a plurality of locking pieces 64, three of which are shown by way of example, can be arranged uniformly along the circumference of the rotary sleeve 61 in order to apply a uniform and stable clamping force to the pull-out hose. Accordingly, in some embodiments, the circumferential wall of the rotating sleeve 61 is provided with openings 612 to correspondingly receive and support the locking pieces 64, and three openings are exemplarily shown in the drawings. It should be understood that any other number of locking pieces and openings are possible, such as two or four, or more.

In some embodiments, the locking assembly further comprises a stop sleeve 65 that urges the lock block 64 to move inwardly toward the rotary sleeve 61 and holds the lock block 64 in the locked state, the stop sleeve 65 being provided with a guide surface and a holding surface (e.g., first surface 653, second surface 654, third surface 655 shown in fig. 6C or fig. 7C) disposed toward the lock block, the lock block 64 being provided with a corresponding mating surface (e.g., mating surface 642 shown in fig. 6C or fig. 7C). In this way, when the rotating sleeve 61 is gradually moved to be adjacent to the first limit position, the guide surface and the retaining surface of the position-limiting sleeve 65 will contact with the mating surface of the lock block 64 and exert gradually increasing retaining force, thereby pushing the lock block 64 to move towards the inside of the rotating sleeve 61, and finally keeping the lock block 64 in a locked state; when the rotary sleeve 61 is gradually moved to be adjacent to the second limit position, the guide surface and the retaining surface of the position limiting sleeve 65 are gradually separated from contact with the mating surface of the lock block 64 to release the retaining force, and the lock block 64 can move away from the rotary sleeve 61, and finally the lock block 64 is in a release state. This will be more clearly understood in the following detailed description.

To obtain the above movement of the rotating sleeve 61, in some embodiments, the locking assembly further includes a sliding sleeve 30, the sliding sleeve 30 is attached to the body 10 and is provided with a sliding rail 33 on an inner side wall for the rotating sleeve 61 to move and rotate, and an outer side wall of the rotating sleeve 61 is provided with a sliding block 611 cooperating with the sliding rail 33. In some embodiments, the sliding sleeve 30 can be threadedly connected to the first end 11 of the body 10, for example, as shown in fig. 3B, the first end 11 of the body 10 is provided with external threads 111, and the abutting end of the sliding sleeve 30 is provided with corresponding internal threads 31. In this manner, the sleeve 30 and the body 10 together form an interior cavity for receiving the locking assembly.

In some embodiments, as shown in connection with fig. 3A to 3C, the sliding track 33 inside the sliding sleeve 30 defines a first stop in the locked state and a second stop in the released state, which correspond to the first limit position and the second limit position of the rotating sleeve, respectively, and are staggered in the circumferential direction. Specifically, the first stopping portion is configured as a locking tooth 331 having a guide slope, and the second stopping portion is configured as a guide groove 332 extending parallel to the axial direction, and is in a locked state when the sliding block 611 of the rotary sleeve 61 moves into the locking tooth 331, and is in a released state when the sliding block 611 moves into the guide groove 332. In some embodiments, the number of the sliding blocks 611 may be the same as the number of the locking teeth 331 or the guide grooves 332.

In some embodiments, the stop collar 65 is disposed within the sliding sleeve 30 and is provided with stop teeth 651 facing the sliding track 33. Further, the locking assembly further includes an elastic member 63, and the elastic member 63 is disposed between the rotary sleeve 61 and a stopper boss 112 (fig. 2B) in the body 10 to apply a restoring force to the rotary sleeve. The elastic member 63 may be selected as a spring, for example. Thus, the rotary sleeve 61, the sliding sleeve 30, the stop sleeve 65 and the elastic member 63 together form a moving mechanism similar to a "push type ball pen", and the movement of the rotary sleeve 61 in the axial direction and the axial rotation can be realized by the pressing operation of the rotary sleeve 61, and the pressing operation of the rotary sleeve 61 can be realized by the trigger sleeve 20. In some embodiments, the locking assembly further comprises a bushing 62 interposed between the elastic member 63 and the rotating sleeve 61.

In some embodiments, the trigger sleeve 20 is attached to the sliding sleeve 30 and is provided with a trigger end 21 facing the outside of the body 10 and a driving end 22 facing the rotating sleeve 61, wherein a driving block 23 may be provided on the outer side wall of the trigger sleeve 20 adjacent to the driving end 22, said driving block 23 being adapted to move along the guide groove 332 on the sliding sleeve 30 and drive the rotating sleeve 61. In some embodiments, the number of driving blocks 23 may be the same as the number of guide grooves 332 or sliding blocks 611 of the rotating sleeve 61.

As can be seen in FIG. 3C, the guide slots 332 are closed-ended toward the end of the trigger sleeve 20, which also keeps the trigger sleeve 20 from falling out after it is attached to the sliding sleeve 30 via the drive block 23. In addition, the inner side wall of the sliding sleeve 30 may further be provided with a bayonet 32 for limiting the position-limiting sleeve 65 therein, and correspondingly, the outer side wall of the position-limiting sleeve 65 is provided with a clamping protrusion 652, and the number of the bayonet and the clamping protrusion is, for example, four, as shown in fig. 3B, but not by way of limitation.

Fig. 4A-5B primarily illustrate a mounting assembly of the locking device adapted to be mounted to the water inlet end of a faucet. As mentioned above, the mounting assembly is provided at the second end 12 of the body 10, and in the illustrated embodiment, the mounting assembly comprises a connecting sleeve having an internal thread 121 matching the water inlet end and configured in a ring form with a first engagement portion 122 and a second engagement portion 123 abutting each other, wherein the first engagement portion 122 and the second engagement portion 123 are provided with a through hole 124. A threaded fastener, for example comprising a bolt 51 and a nut 52, may secure the nipple to the water inlet end by passing through the through-hole 124. Because the internal thread of the connecting sleeve is easy to interfere when being linearly installed with the water inlet end, and the internal thread cannot be screwed and fixed through rotation under the condition of installing a plurality of water pipes, the cross section size of the connecting sleeve can be conveniently enlarged due to the design of the first joint part 122 and the second joint part 123, and the insertion and the locking of the water inlet end are facilitated.

In certain embodiments, the mounting assembly further comprises a lever member 53. The lever member 53 is attached to the first engagement portion 122 or the second engagement portion 123, and is configured to be switchable between a separated state in which the first engagement portion 122 and the second engagement portion 123 are urged away from each other, and an engaged state in which the first engagement portion 122 and the second engagement portion 123 are urged to fit each other. Specifically, the lever member 53 is provided with a tap lever 531, and a release lever 533 connected to the tap lever 531 through a connecting lever 532. Optionally, a notch 125 is provided, for example, at the second engagement portion 123 to accommodate the connecting rod 532 and the separating rod 533. Similarly, a notch may also be provided at the first engaging portion 122 as long as the rotational movement of the tap lever 531 relative to the first engaging portion 122 or the second engaging portion 123 causes the separating lever 533 to urge the first engaging portion 122 and the second engaging portion 123 to abut against each other or to move away from each other.

In the state shown in fig. 4A to 4D, the lever member 53 is in the engaged state, the first engaging portion 122 and the second engaging portion 123 are attached to each other, and the connecting rod 532 and the separating rod 533 are completely accommodated in the notch 125. In the illustrated embodiment, the separating lever 533 and the tap lever 531 extend parallel to each other and in the same direction, so that the notch 125 is configured in a substantially L-shape. In some embodiments, the lever member may be attached to the second engagement portion 123 by a resilient clip 54, for example, the resilient clip 54 passes through the hole 126 on the second engagement portion 123 and the positioning hole 535 on the lever member, respectively, as shown in fig. 3A and 4D.

In some embodiments, the distal end of the separator rod 533 may be provided with an abutment surface 534 that mates with a threaded fastener profile. Thus, as shown in fig. 4C, the release lever 533 in the engaged state is in contact with the bolt 51, and the structure can be kept compact. As an example, the nut 52 may be a wing nut to facilitate a user screwing operation.

In the state shown in fig. 5A to 5B, the lever member is in the separated state, and the first engagement portion 122 and the second engagement portion 123 are separated from each other, which is achieved by rotating the tap lever 531 in the direction of the first engagement portion 122. At this time, the separating rod 533 pushes the first engaging part 122 away from the second engaging part 123, thereby enlarging the sectional size of the connecting sleeve to facilitate the connection of the connecting sleeve with the water inlet end. After the connection is completed, the poke rod 531 is rotated to make the connection rod 532 and the separation rod 533 be accommodated in the notch 125 again, so that the properties of the materials (e.g. metal) of the first joint part 122 and the second joint part 123 can be restored to the fitting state shown in fig. 4A, and further, the connection sleeve and the water inlet end can be fixed by locking the nut 52 and the bolt 51 with each other.

The operation mode of the pull-out faucet having the locking device of the pull-out hose of the present disclosure will be described below with reference to fig. 6A to 7C, and a deck on which the faucet is mounted is not shown for simplicity.

Referring first to fig. 6A to 6C, the locking device of the drawn-out hose is connected to a tap body 82 of the faucet at a water inlet end, for example, through a pipe joint 81, and the tap body 82 is a hollow pipe having an inner passage, and may be made of a metal material or an alloy material. The pulling hose 40 is sleeved inside the locking device and passes through the faucet main body 82, one end of the pulling hose is connected to the water outlet nozzle 83 at the water outlet end, and the other end of the pulling hose is provided with a balancing weight 90. The water inlet and outlet pipe 70 is advantageously connected to the tap body 82 via the body of the locking device, in particular through a connecting sleeve.

In this state, the locking device is in a released state, and the nozzle 83 connected to the pull-out hose 40 is positioned at the water outlet end by the weight of the weight 90. As shown in fig. 6C, the rotary sleeve 61 of the locking assembly is not triggered to move, the locking piece 64 is away from the drawn-out hose 40 and does not contact the stop sleeve 65, and the drawn-out hose 40 can be freely drawn out.

When the faucet 83 needs to be pulled for use, referring to fig. 7A to 7C, a user can pull the faucet 83 and the pulling hose 40 until the weight 90 contacts the trigger sleeve 20, and the trigger sleeve 20 is lifted, so as to drive the movement mechanism, which is similar to a "push type ball pen", composed of the rotating sleeve 61, the sliding sleeve 30, the limiting sleeve 65 and the elastic member 63 to generate linkage. The movement of the moving mechanism can be understood by those skilled in the art, and the description thereof is omitted in the case that the structural features of the components are clearly described in conjunction with the drawings. When the rotary sleeve 61 is moved to the position adjacent to the first limit position as described above, as shown in fig. 7C, the guide surface and the holding surface of the position restricting sleeve 65 come into contact with the engaging surface 642 of the lock piece 64 and exert a gradually increasing holding force, thereby pushing the lock piece 64 to move inward toward the rotary sleeve 61 to clamp the drawn-out hose 40 and finally holding the lock piece 64 in the locked state. At this time, the pulling hose 40 can not be pulled freely under the action of friction force, the gravity of the balancing weight is borne by the locking device, and a user can conveniently use the water outlet nozzle for cleaning for a long time without pulling by force.

By way of example, the stop collar 65 is shown with a first face 653, a second face 654, and a third face 655 angled downwardly in that order, for example, the first face 653 at 45 degrees to vertical, the second face 654 at 30 degrees to vertical, and the third face 655 at 2 degrees to vertical. In the illustrated embodiment, the first face 653 and the second face 654 can serve as guide faces to guide the mating face 642 of the lock block 64 and provide a degree of retention, and the third face 655 can serve as a retention face to be fully tightened and retained when the mating face 642 of the lock block 64 reaches the third face 655. The arrangement of the plurality of guide surfaces and the plurality of retaining surfaces is beneficial to solving the problem of locking failure caused by abrasion of the locking block after long-term use. It is to be understood that only one guide surface may be provided, depending on the different needs.

In some embodiments, a plurality of locking teeth 641 can also be provided on the surface of the locking piece 64 facing the pull-out hose 40, in order to increase the locking effect on the pull-out hose.

After use, the user can pull on the nozzle 83 and, when the rotary sleeve 61 is moved to the second limit position, the guide surface and the holding surface of the stop sleeve 65 are disengaged from the engagement surface of the lock 64 to release the holding force, so that the lock 64 can move away from the rotary sleeve 61 and release the pull-out hose 40. At this time, the locking block 64 is in the release state, the pull-out hose 40 returns to the original position under the gravity of the weight 90, and the water outlet nozzle 83 is restored to abut against the water outlet end, as shown in fig. 6A.

So circulate, the pull hose can be taken out locking state and return free motion state and switch over repeatedly to the staff need not bear the gravity of balancing weight when obtaining the faucet that uses tap, pull hose pull and loosen the effect that can the self return when not using the faucet. The locking device of the pull hose is simple in operation, convenient to use, the installation is swift to owing to install the locking and the release function that can provide the pull hose to the end of intaking of tap, general compatibility is high, need not to change current pull formula tap's structure, saves product development cost, and extensive applicability is general.

It will be appreciated that the above embodiments have been described with reference to a single-bore faucet, and that the pull-out hose locking arrangement of the present disclosure is equally applicable to multi-bore faucets.

It should be understood herein that the various components and features described herein may be made from a variety of materials, including but not limited to polymers, rubbers, metals, metal alloys, and other suitable materials or combinations of materials known to those skilled in the art. The embodiments shown in the figures show only alternative constructions, shapes, sizes and arrangements of the locking device of the pull-out hose and of the various optional components of the pull-out faucet according to the present disclosure, which are, however, only illustrative and not restrictive, and other shapes, sizes and arrangements may be adopted without departing from the spirit and scope of the present disclosure.

The technical content and technical features of the present disclosure have been disclosed above, however, it should be understood that various changes and modifications to the concept disclosed above can be made by those skilled in the art under the conception of the present disclosure, and all of them are within the scope of the present disclosure. The above description of embodiments is intended to be illustrative, and not restrictive, and the scope of the disclosure is defined by the appended claims.

Claims (19)

1. A locking device for a pull-out hose, the locking device being adapted to be mounted on a water inlet end of a water tap and to be fitted over the pull-out hose, and being configured to be switchable between a release state allowing movement of the pull-out hose and a locking state locking movement of the pull-out hose, the locking device comprising:

a body;

a trigger sleeve attached to the body and configured to be movable in an axial direction of the body; and

a locking assembly disposed within the body and configured to move in the axial direction and rotate about the axial direction in response to movement of the trigger sleeve to switch from the released state to the locked state.

2. The pull-out hose locking device of claim 1, wherein the locking assembly comprises a swivel sleeve and a lock disposed on the swivel sleeve, the lock configured to be movable toward the swivel sleeve to lock the pull-out hose or away from the swivel sleeve to release the pull-out hose.

3. A pull-out hose locking device as claimed in claim 2, wherein the swivel sleeve is provided with an opening in a circumferential wall thereof for receiving and supporting the locking piece.

4. A pull-out hose locking device according to claim 2, wherein the locking assembly further comprises a stop collar adapted to urge the locking piece towards the inside of the rotating sleeve and to retain the locking piece in the locked state, the stop collar being provided with a guide surface and a retaining surface arranged towards the locking piece, the locking piece being provided with corresponding mating surfaces.

5. The locking device of a pull-out hose according to claim 4, wherein the locking assembly further comprises a sliding sleeve attached to the body and provided with a sliding track on an inner side wall thereof for movement and rotation of the rotating sleeve, and a sliding block on an outer side wall thereof for cooperating with the sliding track, wherein the sliding track defines a first stop portion in the locking state and a second stop portion in the releasing state, and the first stop portion and the second stop portion are circumferentially staggered.

6. A pull-out hose locking device according to claim 5, characterised in that the first stop is configured as a locking tooth with a guide ramp and the second stop is configured as a guide groove extending parallel to the axial direction.

7. The locking device of a pull hose of claim 6, wherein the trigger sleeve is attached to the sliding sleeve and has a trigger end facing the exterior of the body and a drive end facing the rotating sleeve, wherein a drive block is provided on an exterior sidewall of the trigger sleeve adjacent the drive end, the drive block being adapted to move along the guide channel and drive the rotating sleeve.

8. A pull-out hose locking device according to claim 5, wherein the stop collar is retained in the slide and is provided with a retaining tooth facing the slide.

9. The pull-out hose locking device according to claim 2, wherein the locking assembly further comprises an elastic member disposed between the rotary sleeve and the stop boss in the body to apply a restoring force to the rotary sleeve.

10. The pull-out hose locking device of claim 9, wherein the locking assembly further comprises a bushing interposed between the resilient member and the rotating sleeve.

11. The pull-out hose locking device of claim 1, further comprising a mounting assembly disposed at one end of the body adapted to be mounted to a water inlet end of a faucet, the mounting assembly comprising:

the water faucet comprises a connecting sleeve, a water inlet pipe and a water outlet pipe, wherein the connecting sleeve is adapted to a water inlet end of the water faucet and provided with a first joint part and a second joint part which are butted with each other, and the first joint part and the second joint part are provided with through holes;

the threaded fastener penetrates through the through hole to fix the connecting sleeve at the water inlet end; and

a lever member attached to the first engagement portion or the second engagement portion and configured to be switchable between a separated state in which the first engagement portion and the second engagement portion are urged away from each other and an engaged state in which the first engagement portion and the second engagement portion are urged to fit each other.

12. The pull-out hose locking device of claim 11, wherein the mounting assembly further comprises a resilient clip attaching the lever member to the first engagement portion or the second engagement portion.

13. The locking device of a pull-out hose according to claim 11, wherein the lever member is provided with a lever and a release lever connected to the lever by a connecting rod, wherein the first or second engagement portion is provided with a notch to accommodate the connecting rod and the release lever, wherein rotational movement of the lever relative to the first or second engagement portion causes the release lever to urge the first and second engagement portions away from or into engagement with each other.

14. A pull-out hose locking device according to claim 13, characterised in that the release lever and the tap lever extend parallel to each other and in the same direction.

15. A pull-out hose locking device according to claim 13, wherein the end of the release lever is provided with an abutment surface which cooperates with the profile of the threaded fastener.

16. A pull-out hose locking device according to claim 11, characterised in that the connecting sleeve is integrally formed at the end of the body.

17. A pull-out faucet, comprising:

the main body of the tap is provided with a tap body,

the drawing hose penetrates through the faucet body, one end of the drawing hose is connected with the water outlet nozzle, and the other end of the drawing hose is provided with a balancing weight; and

a locking device of a pull-out hose according to any one of claims 1 to 16, which is arranged adjacent to the counterweight.

18. The pull-out faucet of claim 17, wherein the trigger sleeve is triggered by the weight to move in an axial direction of the body.

19. The pull faucet of claim 17, further comprising a water inlet and outlet tube connected into the faucet body via the body.

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