Pull-out faucet

Abstract

The utility model discloses a kind of pull faucets, comprising: base and swing arm, swing arm is hingedly connected on base and can swing up and down, and the hinge joint of base and swing arm is equipped with hinge joint component;Pulley block can be installed in hinge joint component and swing up and down;Spray head is equipped with hose, hose is arranged in base and swing arm, spray head and hose can be telescopic movement relative to base, and hose keeps on pulley block during telescopic movement Process is placed on;Pulley block cooperation swing arm and the position of hose automatically adjust position, and hose always keeps rolling friction state with hose, the friction of hose in pulling process is greatly reduced, and pulling force is reduced, and pulling hand feeling is smooth, and comfort is increased, while hose surface abrasion is greatly reduced, and life is improved.

Description

Technical Field

[0001] This utility model relates to the field of faucet technology, and in particular to a pull-out faucet. Background Technology

[0002] In most pull-out faucets on the market, the water hose extends and retracts relative to the main body as the spray head moves. This creates significant friction between the hose and the main body. Over time, the hose surface wears down and becomes rough, further increasing friction and severely affecting the smoothness of the spray head movement, thus impacting the user experience. Some pull-out faucets have a swing arm with rollers installed inside the main body, on which the hose rests. As the swing arm changes position, the hose also changes direction, altering the relative force between the hose and the rollers. However, since the rollers remain stationary, the friction between the rollers and the hose varies depending on the swing arm's position, also affecting the smoothness of the hose movement and potentially causing wear and tear on the hose over time. Utility Model Content

[0003] This utility model aims to at least partially solve one of the aforementioned technical problems in related technologies. To this end, this utility model proposes a pull-out faucet.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] According to a first aspect of the present invention, a pull-out faucet includes:

[0006] A base and a swing arm, wherein the swing arm is hinged to the base so as to swing up and down, and a hinge assembly is provided at the hinge joint between the base and the swing arm;

[0007] A pulley system, which is oscillatingly mounted in the hinge assembly;

[0008] The nozzle is equipped with a flexible hose that passes through the base and the swing arm. The nozzle and the flexible hose can extend and retract relative to the base, and the flexible hose remains resting on the pulley assembly during the extension and retraction.

[0009] The pull-out faucet according to the embodiment of this utility model has at least the following beneficial effects: the pulley group automatically adjusts its position in conjunction with the position of the swing arm and the hose, and always maintains a rolling friction state with the hose. The friction of the hose during the pull-out process is greatly reduced, the pulling force is reduced, the pull-out feel is smooth and the comfort is increased, and at the same time, the wear on the hose surface is greatly reduced and the service life is improved.

[0010] According to some embodiments of the present invention, the pulley assembly includes a bracket and rollers. The rollers are rotatably mounted on the bracket, and the bracket is hinged in the hinge assembly. During telescopic movement, the hose rests on the rollers. A limiting structure is provided between the bracket and the hinge assembly, and the limiting structure restricts the swing range of the bracket relative to the hinge assembly.

[0011] According to some embodiments of the present invention, the limiting structure includes a limiting groove and a limiting arm. The hinge assembly is provided with the limiting groove, which includes a first groove wall and a second groove wall distributed in a fan shape. The bracket includes a shaft segment and the limiting arm. The shaft segment is disposed on the end of the limiting arm and is perpendicular to the limiting arm. The shaft segment is rotatably inserted into the limiting groove. The limiting arm is limited to swinging around the shaft segment between the first groove wall and the second groove wall.

[0012] According to some embodiments of the present invention, the inner wall of the hinge assembly has an arc surface, and the bracket is provided with a concave surface, a first plane, and a second plane. The concave surface is recessed in the bracket in a direction away from the arc surface. The first plane and the second plane extend out from a set of opposite sides of the concave surface in opposite directions. When the limiting arm abuts against the first groove wall, the side of the second plane can abut against the arc surface and the side of the first plane is away from the arc surface. When the limiting arm abuts against the second groove wall, the side of the first plane can abut against the arc surface and the side of the second plane is away from the arc surface.

[0013] According to some embodiments of the present invention, the bracket further includes two oppositely arranged connecting arms, two rollers are installed between the two connecting arms and respectively located at the ends of the connecting arms, and the central axes of the two rollers and the central axis of the hinge position of the bracket and the hinge assembly are parallel to each other and are triangularly distributed.

[0014] According to some embodiments of the present invention, the hinge assembly is provided with a steering sleeve and a guide plate. The steering sleeve is fixedly connected to the swing arm. The pulley group is installed in the steering sleeve. The guide plate is fixedly installed on the base. The steering sleeve and the guide plate are rotatably connected and one of them is sleeved on the other. A damping ring is provided at the position where the steering sleeve and the guide plate are sleeved. The damping ring abuts between the steering sleeve and the guide plate.

[0015] According to some embodiments of the present invention, the hinge assembly includes a steering sleeve and a fixed seat. The fixed seat is fixedly connected to the base. The steering sleeve is provided with positioning holes. A plurality of positioning holes are distributed sequentially around the rotation axis of the steering sleeve. The fixed seat is provided with an elastic element. When the swing arm swings relative to the base, the elastic element can elastically slide into or out of each of the positioning holes in sequence.

[0016] According to some embodiments of this utility model, a positioning sleeve is installed on the swing arm. The interior of the positioning sleeve is cylindrical and hollow with openings at both ends. The inner wall of the positioning sleeve is provided with a conical wall extending obliquely toward the central axis of the positioning sleeve. The conical wall is provided with multiple locking protrusions, and each locking protrusion is distributed sequentially around the central axis of the positioning sleeve. The nozzle is provided with an insertion part adapted to the internal shape of the positioning sleeve. The insertion part can be inserted and removed along the axial direction of the positioning sleeve and rotated around the central axis of the positioning sleeve. The insertion part is provided with a locking recess, and the locking protrusions and locking recesses engage in a locking manner.

[0017] According to some embodiments of the present invention, the protrusion is an elliptical protrusion, the extension direction of the long axis of the protrusion intersects with but is not perpendicular to the central axis of the positioning sleeve, the height of the protrusion in the middle is higher than the height of the protrusion around it, and the protrusion and the recess are adapted to each other.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of a pull-out faucet.

[0021] Figure 2 yes Figure 1 A schematic diagram of the internal structure viewed from the left.

[0022] Figure 3 This is a schematic diagram of the pulley system.

[0023] Figure 4 yes Figure 3 Another perspective illustration;

[0024] Figure 5 This is a schematic diagram of one of the usage states of the pulley block in the hinge assembly;

[0025] Figure 6 This is a schematic diagram of another usage state of the pulley block in the hinge assembly;

[0026] Figure 7 yes Figure 1 A schematic diagram of the internal structure from the main view direction;

[0027] Figure 8 This is a structural schematic diagram of the steering sleeve;

[0028] Figure 9 This is a schematic diagram of the swing arm structure;

[0029] Figure 10 This is a schematic diagram of the nozzle structure;

[0030] Figure 11 yes Figure 2 A magnified view of a portion of the image.

[0031] Reference numerals: Base 100; Swing arm 200; Positioning sleeve 210; Conical wall 211; Locking protrusion 212; Hinge assembly 300; Limiting groove 310; First groove wall 311; Second groove wall 312; Arc surface 313; Pulley block 400; Bracket 410; Shaft section 411; Limiting arm 412; Concave surface 413; First plane 414; Second plane 415; Connecting arm 416; Roller 420; Nozzle 500; Hose 510; Insertion part 520; Locking recess 521; Gravity component 600; Steering sleeve 700; Damping ring 710; Positioning hole 720; Guide plate 800; Fixed seat 900; Elastic component 910. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0033] This utility model relates to a pull-out faucet, including a base 100, a swing arm 200, a pulley assembly 400, a nozzle 500, and a gravity component 600.

[0034] like Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, the base 100 can be configured as a vertical support structure. One end of the swing arm 200 is hinged to the upper end of the base 100, and a hinge assembly 300 is provided at the hinge point. The swing arm 200 can swing up and down relative to the base 100 around the hinge assembly 300. Both the base 100 and the swing arm 200 are hollow inside. A pulley block 400 is installed in the hinge assembly 300, and the pulley block 400 can swing up and down relative to the hinge assembly 300. The nozzle 500 is provided with a hose 510, and an external water supply system, such as a tap water pipe, supplies water to the nozzle 500 through the hose 510. The hose 510 passes through the base 100 and the swing arm 200. The nozzle 500 and hose 510 can extend and retract relative to the base 100 and the swing arm 200. Pulling the nozzle 500 pulls the hose 510 outward from the swing arm 200, and releasing the nozzle 500 allows the hose 510 to pull the nozzle 500 back inward from the swing arm 200. The section of hose 510 passing through the hinge assembly 300 bends and changes direction according to the angle between the swing arm 200 and the base 100, with the bend resting on the pulley block 400. When the hose 510 is pulled, it remains stably resting on the pulley block 400 due to its own weight or the weight of other components, and rolling friction occurs between the hose 510 and the pulley block 400 during the pulling process. When the swing arm 200 swings relative to the base 100 to adjust its position, the bending angle of the hose 510 also changes, and the direction of the downward force exerted by the hose 510 on the pulley block 400 also changes. Under the force of the hose 510, the pulley block 400 swings relative to the hinge assembly 300. Alternatively, a gravity component 600 can be installed on the hose 510. The gravity component 600 can be a weight or similar component. The gravity component 600 is located below the hinge assembly 300. The gravity component 600 applies gravity to the hose 510, allowing the hose 510 to remain attached to the pulley block 400. Simultaneously, with the support of the pulley block 400, the hose 510 avoids contact with the base 100 and the swing arm 200, thereby reducing friction. When the hose 510 is pulled outward, the pulley block 400 swings upward relative to the hinge assembly 300 under the force of the hose 510; when the hose 510 retracts towards the swing arm 200, the pulley block 400 swings downward under the force of the hose 510 and its own weight. When the swing arm 200 swings downward relative to the base 100, the angle formed between the front sides of the swing arm 200 and the base 100 decreases; when the swing arm 200 swings upward relative to the base 100, the angle formed between the front sides of the swing arm 200 and the base 100 increases. The swing amplitude of the pulley block 400 also changes according to the angle of the hinge assembly 300. The larger the angle between the swing arm 200 and the base 100, the larger the swing amplitude of the pulley block 400; the smaller the angle between the swing arm 200 and the base 100, the smaller the swing amplitude of the pulley block 400.The pulley block 400 automatically adjusts its position in conjunction with the position of the swing arm 200 and the hose 510, maintaining a rolling friction state with the hose 510 at all times. The friction of the hose 510 is greatly reduced during the pulling process, reducing the pulling force, making the pulling feel smooth and increasing comfort. At the same time, it greatly reduces the wear on the surface of the hose 510 and extends its life. The pulling feel of the hose 510 can also remain roughly the same when the swing arm 200 is in different positions.

[0035] In one embodiment, such as Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the pulley block 400 includes a bracket 410 and rollers 420. Rollers 420 are mounted on the bracket 410 and can rotate relative to the bracket 410. The axis of the rollers 420 is parallel to the axis of the hinge assembly 300. The number of rollers 420 on the bracket 410 can be one, two, or more. The bracket 410 is hinged in the hinge assembly 300, and the pulley block 400 swings relative to the hinge assembly 300 via the bracket 410. A flexible hose 510 rests on the rollers 420, and during the pulling process, the hose 510 slides relative to the rollers 420, greatly reducing friction through the rolling motion of the rollers 420. A limiting structure is provided between the bracket 410 and the hinge assembly 300, restricting the swing range of the bracket 410 relative to the hinge assembly 300. The limiting structure can be a limiting block located on the swing path of the hinge assembly 300 within the bracket 410, using the limiting block to limit the swing stroke of the bracket 410.

[0036] Based on the above embodiments, such as Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the limiting structure includes a limiting groove 310 and a limiting arm 412. The hinge assembly 300 has a limiting groove 310, which is fan-shaped. The limiting groove 310 includes a first groove wall 311 and a second groove wall 312, located on the two straight sides of the fan shape. The bracket 410 includes a shaft segment 411 and a limiting arm 412. The shaft segment 411 is perpendicular to the limiting arm 412 and disposed at the end of the limiting arm 412. The shaft segment 411 can be integrally formed on the limiting arm 412 or installed as an independent component on the limiting arm 412. The shaft segment 411 is rotatably inserted into the limiting groove 310. The shaft segment 411 can be inserted into the end of the limiting groove 310 near the center of its fan shape. The limiting arm 412 swings relative to the limiting groove 310 around the shaft segment 411, and at least a portion of the limiting arm 412 is located in the limiting groove 310, swinging between the first groove wall 311 and the second groove wall 312. For example, when the limiting arm 412 swings clockwise around the shaft segment 411, one side of the limiting arm 412 can swing to abut against the first groove wall 311, and the other side moves away from the second groove wall 312. When the limiting arm 412 swings counterclockwise around the shaft segment 411, one side of the limiting arm 412 can swing to abut against the second groove wall 312, and the other side moves away from the first groove wall 311. This limits the swing range of the bracket 410 in the hinge assembly 300. Further, as... Figure 11 As shown, the inner wall of the hinge assembly 300 has an arc surface 313. The support 410 has a concave surface 413, a first plane 414, and a second plane 415 on the side near the arc surface 313. The concave surface 413 faces the arc surface 313, and is recessed in the support 410 in a direction away from the arc surface 313. The shape of the concave surface 413 is not limited; it can be arc-shaped, rectangular, etc., mainly to avoid contact with the arc surface 313. The first plane 414 and the second plane 415 extend from a set of opposite sides of the concave surface 413 in opposite directions. The first plane 414 and the second plane 415 also face the arc surface 313. When the bracket 410 swings within the hinge assembly 300, when the limiting arm 412 abuts against the first groove wall 311, the side of the second plane 415 away from the first plane 414 can abut against the arc surface 313. At this time, the side of the first plane 414 away from the second plane 415 is far from the arc surface 313. When the limiting arm 412 abuts against the second groove wall 312, the side of the first plane 414 away from the second plane 415 can abut against the arc surface 313. At this time, the side of the second plane 415 away from the first plane 414 is far from the arc surface 313. Based on the limiting action of the limiting arm 412 and the limiting groove 310, the swing stroke of the bracket 410 is further limited by the restraint of the sides of the first plane 414 and the sides of the second plane 415 against the arc surface 313, preventing the limiting arm 412 from disengaging from the limiting groove 310 during the swing process.

[0037] The bracket 410 includes two opposing connecting arms 416, which can be arranged in an arc-shaped plate form, with the arc of the connecting arms 416 surrounding the shaft segment 411. Two rollers 420 are installed between the two connecting arms 416. The two rollers 420 are respectively connected to the ends of the connecting arms 416. The central axes of the two rollers 420 and the central axis of the bracket 410 at the hinge position of the hinge assembly 300 (the central axis of the shaft segment 411) are parallel to each other and arranged in a triangular distribution. The flexible hose 510 rests on the two rollers 420, which support the flexible hose 510. After the swing arm 200 swings relative to the base 100 and changes position, the force exerted by the flexible hose 510 on the two rollers 420 during the pulling and retraction process causes the bracket 410 to swing effectively relative to the hinge assembly 300 through the shaft segment 411. One roller 420 is closer to the swing arm 200 than the other. The roller 420 closer to the swing arm 200 supports the hose 510, preventing the hose section passing through the swing arm 200 from contacting the inner wall of the swing arm 200. The other roller 420, closer to the base 100, supports the hose 510, preventing the hose section passing through the base 100 from contacting the inner wall of the swing arm 200. This effectively reduces friction of the hose 510 during extension and retraction.

[0038] In one embodiment, as shown in the figure, the hinge assembly 300 includes a steering sleeve 700 and a guide plate 800. The steering sleeve 700 and the rocker arm 200 are fixedly connected by means of screws, snap-fit, or other methods. A pulley block 400 is installed in the steering sleeve 700, and the pulley block 400 is rotatably connected to the steering sleeve 700 through a shaft segment 411 on a bracket 410. The aforementioned limiting groove 310 is provided on the side wall of the steering sleeve 700. The guide plate 800 is fixedly installed on the base 100. The steering sleeve 700 and the guide plate 800 are rotatably connected by a rotating shaft. One of the steering sleeve 700 and the guide plate 800 is fitted onto the other. In this embodiment, the guide plate 800 is fitted onto the end of the steering sleeve 700. A damping ring 710 is provided at the position where it is fitted between the steering sleeve 700 and the guide plate 800. The damping ring 710 can be fitted on the outer wall of the end of the steering sleeve 700 and abut against the inner wall of the guide plate 800. The damping ring 710 can be a rubber ring or the like. The swing arm 200 and the base 100 swing relative to each other through the cooperation of the steering sleeve 700 and the guide plate 800. The damping ring 710 increases the frictional damping between the steering sleeve 700 and the guide plate 800, thereby improving the feel when pushing the swing arm 200 to swing relative to the base 100.

[0039] In one embodiment, as shown in the figure, the hinge assembly 300 includes a steering sleeve 700 and a fixed base 900. The fixed base 900 is fixedly connected to the base 100 and cannot rotate relative to the base 100. The steering sleeve 700 is provided with positioning holes 720, and multiple positioning holes 720 are sequentially distributed around the rotation axis of the steering sleeve 700. The fixed base 900 is provided with elastic elements 910, which can be components such as marbles or spring sheets. When the swing arm 200 swings relative to the base 100, the elastic elements 910 elastically slide into or out of each positioning hole 720 sequentially as the position of the swing arm 200 moves. The elastic elements 910 elastically slide into and engage in the currently aligned positioning hole 720, thereby positioning the steering sleeve 700 and the fixed base 900 relative to each other at the current position, preventing the swing arm 200 from automatically swinging downward relative to the base 100 after release.

[0040] In one embodiment, as shown in the figure, a positioning sleeve 210 is installed in the swing arm 200. The interior of the positioning sleeve 210 is cylindrical and hollow with openings at both ends. A conical wall 211 extending obliquely towards the central axis of the positioning sleeve 210 is provided on the inner wall of the positioning sleeve 210. Multiple locking protrusions 212 are provided on the conical wall 211, and these protrusions 212 are sequentially distributed around the central axis of the positioning sleeve 210. The nozzle 500 is provided with a plug-in portion 520 that matches the internal shape of the positioning sleeve 210. The plug-in portion 520 can be installed as an independent component on one end of the nozzle 500. The plug-in portion 520 can be inserted into the positioning sleeve 210 along its axial direction and can be pulled out of the positioning sleeve 210. After the insertion part 520 is pulled out a certain distance relative to the positioning sleeve 210, the insertion part 520 can rotate around the central axis of the positioning sleeve 210 relative to the positioning sleeve 210, thereby rotating the nozzle 500 relative to the swing arm 200 to the desired water spray direction, and then inserting the insertion part 520 into the positioning sleeve 210. The insertion part 520 is provided with a retaining recess 521. After the insertion part 520 is inserted into the positioning sleeve 210, the retaining recess 521 and the currently aligned retaining protrusion 212 engage with each other, thereby positioning the insertion part 520 relative to the positioning sleeve 210 in the current orientation. The shapes of the retaining protrusion 212 and the retaining recess 521 can be set to arc shape, etc. After the insertion part 520 is pulled out, there is a risk that the positioning sleeve 210 may turn yellow locally or have its sharp corners scorched and whitened during the surface treatment process in the production process. The positioning sleeve 210 is hidden in the swing arm 200, and the discolored area will not be directly visible after the nozzle 500 is pulled out, so it does not affect the appearance. In this embodiment, the protrusion 212 is an elliptical protrusion, and the extension direction of the long axis of the protrusion 212 intersects but is not perpendicular to the central axis of the positioning sleeve 210. The height of the central protrusion of the protrusion 212 is higher than the height of the protrusions around it. The protrusion 212 and the recess 521 are matched in shape, that is, the recess 521 is an elliptical recess. The elliptical protrusion 212 and the recess 521 fit together, making it smoother and more tactile for the protrusion 212 to slide into or out of the recess 521 along the axial direction of the positioning sleeve 210.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] In the description of this specification, references to terms such as "some specific embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A pull-out faucet, characterized in that, include: A base (100) and a swing arm (200) are provided, wherein the swing arm (200) is hinged to the base (100) in a way that allows it to swing up and down, and a hinge assembly (300) is provided at the hinge point between the base (100) and the swing arm (200). A pulley block (400) is mounted in the hinge assembly (300) in a way that allows it to swing up and down. The nozzle (500) is provided with a hose (510), which passes through the base (100) and the swing arm (200). The nozzle (500) and the hose (510) can extend and retract relative to the base (100), and the hose (510) remains resting on the pulley assembly (400) during the extension and retraction movement.

2. The pull-out faucet according to claim 1, characterized in that: The pulley assembly (400) includes a bracket (410) and rollers (420). The rollers (420) are rotatably mounted on the bracket (410). The bracket (410) is hinged in the hinge assembly (300). During telescopic movement, the hose (510) remains draped over the rollers (420). A limiting structure is provided between the bracket (410) and the hinge assembly (300) to limit the swing range of the bracket (410) relative to the hinge assembly (300).

3. The pull-out faucet according to claim 2, characterized in that: The limiting structure includes a limiting groove (310) and a limiting arm (412). The limiting groove (310) is provided on the hinge assembly (300). The limiting groove (310) includes a first groove wall (311) and a second groove wall (312) distributed in a fan shape. The bracket (410) includes a shaft segment (411) and the limiting arm (412). The shaft segment (411) is disposed on the end of the limiting arm (412) and perpendicular to the limiting arm (412). The shaft segment (411) is rotatably inserted into the limiting groove (310). The limiting arm (412) is limited to swinging around the shaft segment (411) between the first groove wall (311) and the second groove wall (312).

4. The pull-out faucet according to claim 3, characterized in that: The inner wall of the hinge assembly (300) has an arc surface (313). The bracket (410) is provided with a concave surface (413), a first plane (414), and a second plane (415). The concave surface (413) is recessed in the bracket (410) facing the arc surface (313) and in a direction away from the arc surface (313). The first plane (414) and the second plane (415) extend from a set of opposite sides of the concave surface (413) in opposite directions. When the limiting arm (412) abuts against the first groove wall (311), the side of the second plane (415) can abut against the arc surface (313) and the side of the first plane (414) is away from the arc surface (313); when the limiting arm (412) abuts against the second groove wall (312), the side of the first plane (414) can abut against the arc surface (313) and the side of the second plane (415) is away from the arc surface (313).

5. The pull-out faucet according to claim 2 or 3, characterized in that: The bracket (410) also includes two oppositely arranged connecting arms (416), and two rollers (420) are installed between the two connecting arms (416) and located at the ends of the connecting arms (416), respectively. The central axes of the two rollers (420) and the central axis of the hinge position of the bracket (410) and the hinge assembly (300) are parallel to each other and are triangularly distributed.

6. The pull-out faucet according to any one of claims 1 to 4, characterized in that: The hinge assembly (300) includes a steering sleeve (700) and a guide plate (800). The steering sleeve (700) is fixedly connected to the swing arm (200). The pulley block (400) is installed in the steering sleeve (700). The guide plate (800) is fixedly installed on the base (100). The steering sleeve (700) and the guide plate (800) are rotatably connected, with one sleeved on the other. A damping ring (710) is provided at the position where the steering sleeve (700) and the guide plate (800) are sleeved. The damping ring (710) abuts between the steering sleeve (700) and the guide plate (800).

7. The pull-out faucet according to any one of claims 1 to 4, characterized in that: The hinge assembly (300) includes a steering sleeve (700) and a fixed base (900). The fixed base (900) is fixedly connected to the base (100). The steering sleeve (700) is provided with positioning holes (720). A plurality of positioning holes (720) are distributed sequentially around the rotation axis of the steering sleeve (700). The fixed base (900) is provided with elastic elements (910). When the swing arm (200) swings relative to the base (100), the elastic elements (910) can elastically slide into or out of each positioning hole (720) in sequence.

8. The pull-out faucet according to any one of claims 1 to 4, characterized in that: The swing arm (200) is equipped with a positioning sleeve (210). The interior of the positioning sleeve (210) is cylindrical and hollow with openings at both ends. The inner wall of the positioning sleeve (210) is provided with a conical wall (211) extending obliquely toward the central axis of the positioning sleeve (210). The conical wall (211) is provided with multiple locking protrusions (212). Each locking protrusion (212) is distributed sequentially around the central axis of the positioning sleeve (210). The nozzle (500) is provided with a plug-in part (520) that is adapted to the internal shape of the positioning sleeve (210). The plug-in part (520) can be inserted and removed along the axial direction of the positioning sleeve (210) and rotated around the central axis of the positioning sleeve (210). The plug-in part (520) is provided with a locking recess (521). The locking protrusions (212) and the locking recess (521) are engaged and locked together.

9. The pull-out faucet according to claim 8, characterized in that: The protrusion (212) is an elliptical protrusion. The extension direction of the long axis of the protrusion (212) intersects with but is not perpendicular to the central axis of the positioning sleeve (210). The height of the protrusion in the middle of the protrusion (212) is higher than the height of the protrusion around it. The protrusion (212) and the recess (521) are adapted to each other.

10. The pull-out faucet according to claim 1, characterized in that: It also includes a gravity member (600) mounted on the hose (510) and exerting a gravitational force on the hose (510) to keep it lapped on the pulley assembly (400).

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