A retractor assembly includes a housing, a cover, a rotary plate, a swing arm, an outlet pipe, and an elastic drive member. The housing includes a cavity. The rotary plate is pivotally mounted within the cavity. The swing arm is pivotally mounted and includes a guide protrusion. The elastic drive member is configured to bias the rotary plate toward a reset position. A side of the rotary plate includes an outer guide groove and in inner guide groove. A first channel and a second channel span between the outer guide groove and the inner guide groove. The guide protrusion is configured to enter the inner guide groove from the outer guide groove via the first channel, and enter the outer guide groove from the inner guide groove via the second channel. The second channel includes a locking groove therein configured to catch the guide protrusion.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims the benefit of and priority to Chinese Patent Application No. 202221101659.2, filed on May 9, 2022, the disclosure of which is incorporated herein by reference in its entirety.

FIELD

The application relates to the technical field of retracting devices and utility conduit management. More specifically, the application relates to tensioners, retractors, and drawing mechanisms for fluid conduits.

BACKGROUND

A faucet can include a faucet body and a faucet outlet. The faucet outlet can be coupled to a fluid conduit that is configured to slide within the faucet body. A length of the fluid conduit may at least partially protrude from a first end of the faucet body (e.g., an above sink end) and/or a second end of the faucet body (e.g., under sink end, a base end, etc.). The faucet outlet may be removably coupled to the faucet body in a first position in which a length of fluid conduit protrudes from the second end of the faucet body. The faucet outlet may be displaced from the faucet body in a second position in which a length of fluid conduit protrudes from the first end of the faucet body and spans between the faucet body and faucet outlet.

SUMMARY

At least one embodiment relates to a retractor assembly including a housing, a cover, a rotary plate, a swing arm, an outlet pipe, and an elastic drive member. The housing includes a cavity. The cover is coupled to the housing and includes an inlet channel. The rotary plate is pivotally mounted within the cavity. The swing arm is pivotally mounted within the cavity and includes a guide protrusion. The elastic drive member is mounted within the cavity and is configured to bias the rotary plate toward a reset position. A first end of the outlet pipe is fluidly coupled with the inlet channel. A second end of the outlet pipe passes through the housing. A side of the rotary plate includes an outer guide groove and in inner guide groove. A first channel and a second channel span between the outer guide groove and the inner guide groove. The guide protrusion is configured to enter the inner guide groove from the outer guide groove via the first channel. The guide protrusion is configured to enter the outer guide groove from the inner guide groove via the second channel. The second channel includes a locking groove therein configured to catch the guide protrusion.

Another embodiment relates to a retractor assembly for a plumbing conduit. The retractor assembly includes a housing, a cover, a spool, a swing arm, a fluid conduit, and an elastic drive member. The housing includes a cavity. The cover is coupled to the housing and includes an inlet channel. The spool is pivotally mounted within the cavity and is configured to rotate about a spool axis. The swing arm is pivotally mounted within the cavity and includes a guide protrusion. The fluid conduit is wound on the spool and includes a first end coupled to the inlet channel. The elastic drive member is mounted within the cavity and is configured to bias the spool to rotate about the spool axis toward a reset position. The fluid conduit passes through a hole in the housing between the first end and a second end of the fluid conduit. A side of the spool includes a first annular guide groove, a second annular guide groove, a first channel, and a second channel. The first channel spans between the first annular guide groove and the second annular guide groove. The second channel spans between the first annular guide groove and the second annular guide groove. The guide protrusion is configured to enter the first annular guide groove from the second annular guide groove via the first channel. The guide protrusion is configured to enter the second guide groove from the first guide groove via the second channel. The second channel includes a bend therein configured to catch the guide protrusion within the second channel.

Another embodiment relates to a retractor assembly includes a housing, a spool, a spring, and a follower arm. The spool is configured to pivot about a spool axis within the housing. The spool includes a side including a first annular guide groove concentric with the spool axis, a second annular guide groove concentric with the spool axis, a first channel spanning between the first annular guide groove and the second annular guide groove, and a second channel spanning between the first annular guide groove and the second annular guide groove. The second channel includes a bend. The spring is configured to bias the spool to rotate around the spool axis toward a reset position. The follower arm is pivotally coupled within the housing and includes a guide protrusion configured to slide within the first annular guide groove, the second annular guide groove, the first channel, and the second channel. The guide protrusion enters the first channel from the first annular guide groove when the spool is rotated in a first direction. The guide protrusion enters the second channel from the second annular guide groove when the spool is rotated in a second direction opposite the first direction.

Another embodiment relates to a pipe drawing mechanism including a housing with a holding cavity, a top cover mounted on the housing and having an inlet channel, a rotary plate pivotally mounted in the holding cavity, a swing arm pivotally mounted in the holding cavity and having a guide protrusion, an outlet pipe wound on the rotary plate and an elastic drive member mounted in the holding cavity and used to drive the rotary plate to reset; one end of the outlet pipe is connected with the inlet channel and other end of the outlet pipe passes through the holding cavity; one side of the rotary plate that facing the swing arm has an outer guide groove and an inner guide groove which are in clearance fit with the guide protrusion; a first channel and a second channel are connected between the outer guide groove and the inner guide groove at intervals, the guide protrusion is able to enter the inner guide groove from the outer guide groove via the first channel and the guide protrusion is able to enter the outer guide groove from the inner guide groove via the second channel; and the second channel has a locking groove therein for locking the guide protrusion.

In some embodiments, the locking groove is a bending groove provided in the second channel.

In some embodiments, the guide protrusion is a guide cylinder.

In some embodiments, a bottom plate of the housing has a connection column, one end of the swing arm is pivotally mounted on the connection column.

In some embodiments, a terminal end of the swing arm has a support end extending towards the bottom plate, the support end is on the bottom plate.

In some embodiments, the rotary plate includes a circular groove, the outlet pipe is wound in the circular groove.

In some embodiments, the rotary plate is fitted with an adapter connected to the inlet channel, one end of the outlet pipe is connected to the adapter.

In some embodiments, the adapter including an adapting pipe and a pipe fitting attached to one side of the adapting pipe; the rotary plate has a central sleeve in the central part, one side of the central sleeve has a sleeve notch; and the adapting pipe is installed in the central sleeve and communicated with the inlet channel, the pipe fitting protrudes from the sleeve notch and is connected with the outlet pipe.

In some embodiments, a bottom of the top cover has an insert-pipe connected with the inlet channel, the insert-pipe is inserted in the adapting pipe.

In some embodiments, a bottom of the rotary plate has a storage groove, the elastic drive member is located in the storage groove.

In some embodiments, when the outlet pipe is drawn outward, the rotary plate rotates in the positive direction and compresses the elastic driving member, and the guide protrusion enters the inner guide groove from the outer guide groove via the first channel. In some embodiments, after the user stops drawing the outlet pipe, the user can release the outlet pipe, and under the action of the elastic drive member, the rotary plate starts to rotate in the reverse direction and drive the outlet pipe to retract a certain length. In some embodiments, the guide protrusion enters the locking groove of the second channel from the inner guide groove to prevent the rotary plate from rotating in the reverse direction, and the outlet pipe is locked and no longer retracted. In some embodiments, when the user needs to retract and collect the outlet pipe, the user can draw the outlet pipe again, the guide protrusion leaves the locking groove and enter the outer guide groove. In some embodiments, the outlet pipe is retracted automatically after the user releases it.

This summary is illustrative only and should not be regarded as limiting.

DETAILED DESCRIPTION

Before turning to the figures, which illustrate certain exemplary embodiments in detail, it should be understood that the present disclosure is not limited to the details or methodology set forth in the description or illustrated in the figures. It should also be understood that the terminology used herein is for the purpose of description only and should not be regarded as limiting. The various concepts introduced above and discussed in greater detail below may be implemented in any number of ways, as the described concepts are not limited to any particular manner of implementation. Examples of specific implementations and applications are provided primarily for illustrative purposes.

Embodiments of the application are further described below with reference to the accompanying figures, wherein like reference numerals refer to like elements. It should be noted that, terms as used in the following description, “front”, “rear”, “left”, “right”, “up” and “down” indicate a direction in the figures, and terms “inner” and “outer” respectively indicate the direction towards or away from a geometric center of a particular part.

A faucet can include a faucet body and a faucet outlet. The faucet outlet may be coupled to a fluid conduit that is configured to slide within the faucet body. A length of the fluid conduit may at least partially protrude from a first end of the faucet body (e.g., an above sink end) and/or a second end of the faucet body (e.g., under sink end, a base end, etc.). The faucet outlet may be removably coupled to the faucet body in a first position in which a length of fluid conduit protrudes from the second end of the faucet body. The faucet outlet may be displaced from the faucet body in a second position in which a length of fluid conduit protrudes from the first end of the faucet body and spans between the faucet body and faucet outlet.

A user can draw the fluid conduit (e.g., pipe, hose, flexible tubing, water pipe, water hose, etc.) from the faucet body to adjust the length of the fluid conduit, so that the position and angle of the faucet outlet relative to the faucet body can be adjusted, which is convenient to use.

The fluid outlet and fluid conduit may be biased from the second position (e.g., the pulled-out position, the pulled-down position, the extended position, etc.) toward the first position (e.g., a home position, a compact position, a docked position, etc.) by a retractor. A retractor can include a weight suspended along a length of the fluid conduit that pulls the fluid conduit through the faucet body (e.g., as the weight falls). However, such retractors are burdensome and difficult to use. For example, the biasing force of the retractor must be overcome and sustained in order to maintain the faucet outlet in the second position. For example, a user may pull on the faucet outlet (e.g., which may lift the weight) and overcome the biasing force. However, when a user does not overcome the biasing force of the retractor (e.g., does not continue to pull on the faucet outlet), the retractor retrieves the fluid conduit through the faucet body.

When a typical water pipe drawing mechanism is in use, users need to keep drawing the water pipe to avoid retraction of the water pipe, which is inconvenient to use.

The application aims to provide a retractor assembly to overcome the shortcomings of the prior art, such as burdensome positioning and strenuous drawing. Aiming at the technical problems, the application provides the following technical solutions.

The application discloses a pipe drawing mechanism including a housing, a top cover, a rotary plate, a swing arm with a guide protrusion, an outlet pipe and an elastic drive member; a side of the rotary plate facing the swing arm is provided with an outer guide groove and an inner guide groove which are in clearance fit with the guide protrusion; a first channel and a second channel are connected between the outer guide groove and the inner guide groove at intervals, the guide protrusion can enter the inner guide groove from the outer guide groove via the first channel, and the guide protrusion can enter the outer guide groove from the inner guide groove via the second channel; the second channel has a locking groove therein for locking the guide protrusion. The pipe drawing mechanism of the application has locking function and is convenient for users to use.

An object of the application is to overcome the shortcomings of the prior art and provide a pipe drawing mechanism with locking function.

A technical solution of the application provides a pipe drawing mechanism including a housing with a holding cavity, a top cover mounted on the housing and having an inlet channel, a rotary plate pivotally mounted in the holding cavity, a swing arm pivotally mounted in the holding cavity and having a guide protrusion, an outlet pipe wound on the rotary plate and an elastic drive member mounted in the holding cavity and used to drive the rotary plate to reset; one end of the outlet pipe is connected with the inlet channel and other end of the outlet pipe passes through the holding cavity; one side of the rotary plate that facing the swing arm has an outer guide groove and an inner guide groove which are in clearance fit with the guide protrusion; a first channel and a second channel are connected between the outer guide groove and the inner guide groove at intervals, the guide protrusion is able to enter the inner guide groove from the outer guide groove via the first channel and the guide protrusion is able to enter the outer guide groove from the inner guide groove via the second channel; and the second channel has a locking groove therein for locking the guide protrusion.

In some embodiments, the locking groove is a bending groove provided in the second channel.

In some embodiments, the guide protrusion is a guide cylinder.

In some embodiments, a bottom plate of the housing has a connection column, one end of the swing arm is pivotally mounted on the connection column.

In some embodiments, a terminal end of the swing arm has a support end extending towards the bottom plate, the support end is on the bottom plate.

In some embodiments, the rotary plate includes a circular groove, the outlet pipe is wound in the circular groove.

In some embodiments, the rotary plate is fitted with an adapter connected to the inlet channel, one end of the outlet pipe is connected to the adapter.

In some embodiments, the adapter includes an adapting pipe and a pipe fitting attached to one side of the adapting pipe; the rotary plate has a central sleeve in the central part, one side of the central sleeve has a sleeve notch; and the adapting pipe is installed in the central sleeve and communicated with the inlet channel, the pipe fitting protrudes from the sleeve notch and is connected with the outlet pipe.

In some embodiments, a bottom of the top cover has an insert-pipe connected with the inlet channel, the insert-pipe is inserted in the adapting pipe.

In some embodiments, a bottom of the rotary plate has a storage groove, the elastic drive member is located in the storage groove.

Advantageously, when the outlet pipe is drawn outward, the rotary plate rotates in the positive direction and compresses the elastic driving member, and the guide protrusion enters the inner guide groove from the outer guide groove via the first channel, according to some embodiments. After the user stops drawing the outlet pipe, the user can release the outlet pipe, and under the action of the elastic drive member, the rotary plate starts to rotate in the reverse direction and drive the outlet pipe to retract a certain length. During the process, the guide protrusion will enter the locking groove of the second channel from the inner guide groove to prevent the rotary plate from rotating in the reverse direction, and the outlet pipe is locked and no longer retracted. When the user needs to retract and collect the outlet pipe, the user can draw the outlet pipe again, the guide protrusion will leave the locking groove and enter the outer guide groove. The outlet pipe will be retracted automatically after the user releases it.

Thus, the application provides an improved pipe drawing mechanism with a locking function, which is convenient for users to use.

As shown inFIGS.1-12, a retractor assembly (e.g., retractor, reel, retriever, etc.), shown as pipe drawing mechanism0includes a housing1defining a holding cavity10(e.g., an internal volume, a space, etc.), a top cover2(e.g., cover, lid, top plate, top, etc.) mounted on the housing1and having an inlet channel21(e.g., an inlet, intake, inlet port, intake port, etc.), a rotary plate3(e.g., spool) pivotally mounted in the holding cavity10, a swing arm5(e.g., guide arm, cam arm, cam follower arm, etc.) pivotally mounted in the holding cavity10and having a guide protrusion51(e.g., a follower), a fluid conduit (e.g., flexible tube, hose, pipe, etc.) shown as outlet pipe6configured to be wrapped around (e.g., spooled onto, coiled onto, etc.) the rotary plate3, and an elastic drive member7(e.g., spring, torsional spring, magnet, etc.) mounted in the holding cavity10and configured to drive the rotary plate3to reset (e.g., drive the rotary plate3to rotate toward a reset position, supply a torque to return the rotary plate3to a reset position). For example, the elastic drive member7may bias the rotary plate3to rotate toward a home position where the torsional spring is in a rest state (e.g., an unloaded state, a non-deformed state, etc.).

In some embodiments, one end of the outlet pipe6is connected to the inlet channel21and the other end penetrates (e.g., is external to) the holding cavity10.

In some embodiments, an outer guide groove31(e.g., outer track) and an inner guide groove32(e.g., inner track) in clearance fit with the guide protrusion51are arranged on a side of the rotary plate3facing the swing arm5. The rotary plate3may pivot about a pivot axis DD (see,FIG.8). For example, the rotary plate3may be pinned within the holding cavity10by, for example, a portion of the housing1and/or the cover2. The outer guide groove31may define an outer groove path (e.g., groove track, etc.) that extends around the pivot axis DD and the inner guide groove32may define a inner groove path (e.g., inner groove track, etc.,) that extends around the pivot axis DD. A distance between the axis DD and the outer guide groove31may be greater than a distance between the inner guide groove32. The outer guide groove31may be radially further from the pivot axis DD than the inner guide groove32. In some embodiments, the outer guide groove31and the inner guide groove32have a circular path around the pivot axis DD. The radius of the path of the outer guide groove31may be larger than the radius of the path of the inner guide groove32. In some embodiments, the inner guide groove32is proximate the pivot axis DD and the outer guide groove is distal the pivot axis DD. In some embodiments, the outer guide groove31is proximate the perimeter of the rotary plate3. In some embodiments, the path of the outer guide groove31and the path of the inner guide groove32are concentric about the pivot axis DD.

In some embodiments, a first channel33(e.g., a first passage, a first ramp, etc.) and a second channel34(e.g., a second passage, a second ramp, etc.) are connected between the outer guide groove31and the inner guide groove32. The guide protrusion51is able to enter the inner guide groove32from the outer guide groove31via the first channel33, and the guide protrusion51is able to enter the outer guide groove31from the inner guide groove32via the second channel34. For example, the guide protrusion51may travel along the groove path of the outer guide groove31and selectively be diverted into the inner guide groove32via the second channel34.

In some embodiments, a locking groove341(e.g., elbow, bend, pocket, corner, catch, etc.) for locking the guide protrusion51is provided in the second channel34. In some embodiments, the depth of the outer guide groove31, the inner guide groove32, the first channel33and the second channel34is similar. In some embodiments, the bottom surface of the outer guide groove31, the inner guide groove32, the first channel33and the second channel34is flat. For example, the cross section (e.g., groove profile) of the outer guide groove31, the inner guide groove32, the first channel33, and the second channel34may be substantially uniform.

In some embodiments, the pipe drawing mechanism0includes a housing1, a top cover2, a rotary plate3, a swing arm5, an outlet pipe6and an elastic drive member7.

In some embodiments, the top cover2is mounted on the housing1by screws, and a holding cavity10is formed between the housing1and the top cover2. The housing1includes a circular bottom plate11and a circle of side plate mounted around the bottom plate11, and a line outlet12is provided on the side plate. The top cover2has an inlet channel21arranged on it.

In some embodiments, the rotary plate3is connected between the bottom plate11and the top cover2by a pivoting shaft or a central sleeve, and the rotary plate3is rotatable in the holding cavity10. The swing arm5is mounted on the bottom plate11by the pivot shaft, and the swing arm5is between the bottom plate11and a bottom side of the rotary plate3. The top side of the swing arm5has a guide protrusion51.

In some embodiments, the outlet pipe6is a soft pipe, and the outlet pipe6is wound on the rotary plate3. One end of the outlet pipe6is communicated with the inlet channel21and communicated to the water path. The other end of the outlet pipe6extends through the line outlet12to the outside of the housing1. The other end of the outlet pipe6can be connected to a sprayer, a faucet or a water-consuming device.

In some embodiments, the elastic drive member7is mounted between the bottom plate11and the rotary plate3, and it is used to drive the rotary plate3to reset. When the user draws the outlet pipe6, the rotary plate3rotates in the positive direction and the elastic drive member7is compressed. After the user releases the outlet pipe6, the rotary plate3rotates in the reverse direction by the action of the elastic drive member7, to wrap the outlet pipe6around the rotary plate3, and the outlet pipe6is retracted and collected.

In some embodiments, a circle of outer guide groove31and a circle of inner guide groove32are arranged at the bottom surface of the rotary plate3, and the inner guide groove32is located inside the outer guide groove31. The inner guide groove32is arranged coaxially with the outer guide groove31.

In some embodiments, the guide protrusion51is in clearance fit with the inner guide groove32and the outer guide groove31. The guide protrusion51can slide in the inner guide groove32and the outer guide groove31.

In some embodiments, there is a first channel33connected between the outer guide groove31and the inner guide groove32, and the rotary plate3is driven to rotate in the positive direction when the outlet pipe6is drawn out, and the guide protrusion51can enter the inner guide groove32from the outer guide groove31via the first channel33.

In some embodiments, there is also a second channel34connected between the outer guide groove31and the inner guide groove32, and the second channel34and the first channel33are arranged at intervals. After the user releases the outlet pipe6, the rotary plate3rotates in the reverse direction and the guide protrusion51can enter the outer guide groove31from the inner guide groove32via the second channel34.

In some embodiments, the second channel34has a locking groove341therein for locking the guide protrusion51to prevent the rotary plate3from rotating in reverse direction, thus the outlet pipe6is locked in place. When the user needs to retract the outlet pipe6, the user draws the outlet pipe6again, and the guide protrusion51will leave the locking groove341and enter the outer guide groove31, and the outlet pipe6is automatically retracted and collected when the user releases his hand.

In some embodiments, in the pipe drawing mechanism0, when the outlet pipe6is drawn out, the rotary plate3rotates in the positive direction and compresses the elastic drive member7, and the guide protrusion51enters the inner guide groove32from the outer guide groove31via the first channel33. When the user stops drawing the outlet pipe6, the user can release the outlet pipe6, and under the action of the elastic drive member7, the rotary plate3starts to rotate in reverse direction and drive the outlet pipe6to retract a certain length. During the process, the guide protrusion51will enter the locking groove341of the second channel34from the inner guide groove32to prevent the rotary plate3from rotating in the reverse direction, then the outlet pipe6is locked and no longer retracted. When the user needs to retract the outlet pipe6, the user draws the outlet pipe6again, the guide protrusion51will leave the locking groove341and enter the outer guide groove31, and the outlet pipe6will be automatically retracted after the user releases it.

Thus, the application provides a pipe drawing mechanism0with a locking function, which is convenient for users to use.

As shown inFIG.9, the locking groove341is a bending groove provided in the second channel34, according to some embodiments. The bending groove has a simple structure and can be conveniently arranged in the second channel34. The guide protrusion51can be locked at a bend after the guide protrusion51enters the bending groove. After the user draws the outlet pipe6here, the guide protrusion51can leave the bend of the bending groove and enter the outer guide groove31.

As shown inFIG.10, the guide protrusion51is a guide cylinder, which has a small contact area and low friction with the outer guide groove31, the inner guide groove32, the first channel33and the second channel34, which facilitates the guide cylinder to slide relative to the guide groove and channel, according to some embodiments.

As shown inFIG.2,FIG.4andFIG.10, the bottom plate11of the housing1has a connection column13, and one end of the swing arm5is pivotally mounted on the connection column13which facilitates assembly of the swing arm5with the bottom plate11, according to some embodiments. For example, the swing arm5may include a pivot52configured to engage the connection column13and thereby pivotally couple the swing arm5to the bottom plate11of the housing1. The top end of the connection column13has an end cap (e.g., shoulder, head, etc.), which serves to prevent the swing arm5from separating from the connection column13.

As shown inFIG.10, a terminal end of the swing arm5has a support end53(e.g., support tab, tab, elbow, nib, etc.) extending toward the bottom plate11, which is in contact with the bottom plate11and acts as a support to keep the guide protrusion51able to be in the outer guide groove31, the inner guide groove32, the first channel33and the second channel34, according to some embodiments.

As shown inFIG.2andFIGS.7-8, the rotary plate3includes a circular groove35, and the outlet pipe6is wound in the circular groove35, so the stability of the outlet pipe6being wound on the rotary plate3is improved, according to some embodiments.

As shown inFIGS.2-3andFIG.6, the rotary plate3is mounted with an adapter4that connected to the water inlet channel21, and one end of the outlet pipe6is connected to the adapter4, according to some embodiments.

Specifically, the adapter4is mounted on the rotary plate3, one end of the adapter4is connected to the inlet channel21, and the other end of the adapter4is connected to the outlet pipe6to facilitate the connection of the outlet pipe6with the water path of the inlet channel21.

As shown inFIG.2andFIGS.6-8, the adapter4includes an adapter tube41and a pipe fitting42attached to one side of the adapter tube41, according to some embodiments.

In some embodiments, the rotary plate3has a central sleeve36in the central part, and one side of the central sleeve36has a sleeve notch361.

In some embodiments, the adapter tube41is installed in the central sleeve36and connected with the inlet channel21. The pipe fitting42extends from the sleeve notch361and is connected with the outlet pipe6.

In some embodiments, the adapter4includes an adapter tube41and a pipe fitting42, and the pipe fitting42is connected to one side of the adapter tube41. The rotary plate3has a central sleeve36in the central part, and one side of the central sleeve36has a sleeve notch361. When assembled, the adapter tube41is installed in the central sleeve36, and the adapter tube41is connected with the inlet channel21. The pipe fitting42extends from the sleeve notch361, and the pipe fitting42is connected with the outlet pipe6to supply water for the outlet pipe6.

In some embodiments, the central sleeve36is provided to be pivotally connected with the top cover2and the bottom plate11as needed, and the adapter4can rotate integrally with the central sleeve36.

As shown inFIG.2andFIGS.5-6, the bottom of the top cover2has an insert-pipe22connected with the inlet channel21, and the insert-pipe22is inserted into the adapter tube41, according to some embodiments. The lower end of the insert-pipe22is closed and the portion of the insert-pipe22inserted into the adapter tube41has an outlet. Water can enter the adapter tube41through the outlet of the insert-pipe22.

In some embodiments, the lower end of the insert-pipe22is mounted on the bottom plate11, and the insert-pipe22may be the pivot shaft (e.g., pivot pin) of the rotary plate3.

As shown inFIGS.2-3andFIG.8, the bottom of the rotary plate3has a storage groove37(e.g., pocket, recess, etc.), and the elastic drive member7is in the storage groove37, which can improve the assembly stability of the elastic drive member7and the rotary plate3, according to some embodiments.

In some embodiments, the elastic drive member7is a coil spring, which has good elastic effect and is easy to assemble with the rotary plate3and drive the rotary plate3to rotate. One end of the coil spring is connected with the housing1and the other end is connected with the rotary plate3.

Stated above are only principles and preferred embodiments of the present application. It should be noted that, those skilled in the art can make various other modifications based on the principle of the present application, all of which should be deemed to fall within the protection scope of the present application.

Although the figures and description may illustrate a specific order of method steps, the order of such steps may differ from what is depicted and described, unless specified differently above. Also, two or more steps may be performed concurrently or with partial concurrence, unless specified differently above. It is important to note that any element disclosed in one embodiment may be incorporated or utilized with any other embodiment disclosed herein.