A pull-out faucet

Abstract

The utility model discloses a kind of pull-out faucets, including faucet body and pull telescopic mechanism;Faucet body includes mutually connected elbow section and straight pipe section;Pull telescopic mechanism is installed in elbow section and straight pipe section inside, pull telescopic mechanism includes pull assembly and guide component;The length of the guide component is greater than or equal to the length of straight pipe section, one end of pull assembly is located outside elbow section, and the other end of pull assembly is slidably sealed with guide component.Perpendicular to the upper end of straight pipe section by setting guide component to be greater than or equal to the length of straight pipe section, effectively prolongs the sliding sealed stroke of pull assembly in straight pipe section, significantly improves the pull stroke of pull assembly under the premise of not increasing the external dimension of faucet;Pull assembly only reciprocatingly slides in linear guide component, also avoid the uneven stress and friction noise problem caused by entering elbow section arc section.

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] Pull-out faucets are widely used in homes and commercial kitchens due to their flexibility and ease of cleaning. Their core structure typically includes the faucet body fixed to the sink countertop, a pull-out spray nozzle, and a flexible hose connecting the two. To achieve automatic return of the spray nozzle after use, current technologies generally rely on gravity or elastic elements to provide the repositioning force.

[0003] Most mainstream pull-out faucets currently use a weight suspended from the flexible hose to automatically return the spray nozzle to its original position using gravity. However, this method requires placing the weight and part of the hose under the sink, occupying valuable cabinet space and increasing the complexity of installation and maintenance. To overcome these shortcomings, a new type of pull-out faucet has emerged in recent years, using a spring as the return force. Limited by the faucet's dimensions and internal space layout, this design often extends the return spring into the curved section of the faucet's bend. During the pull-out process, the spring deforms under pressure within the bend, and one side easily comes into close contact with or even rubs against the inner wall of the bend, generating significant noise and affecting the user experience. Furthermore, when the flexible hose passes through the curved section of the bend, a dynamic seal is required at one end to prevent leakage. However, due to the uneven stress on the hose caused by the curvature of the bend, the dynamic seal cannot maintain uniform sealing pressure in the bending area, leading to decreased sealing reliability and a risk of leakage. To address the aforementioned noise and sealing reliability challenges, existing improvements attempt to limit the range of motion of the pull-out hose to the straight section of the faucet body, preventing the seals on the hose from entering the bends. This ensures the dynamic seal slides only along a straight path, improving sealing stability and eliminating friction noise between the spring and the inner wall of the bend. However, this solution is limited by the axial length of the straight section, significantly shortening the effective pull-out stroke of the hose and resulting in insufficient practical pull-out length for users, making it difficult to meet the needs of flexible rinsing over a wide area. Therefore, a structurally optimized pull-out faucet solution is urgently needed to balance reset performance, quiet operation, and sealing reliability. Utility Model Content

[0004] This application provides a pull-out faucet that solves the technical problems of high noise and unreliable sealing in existing spring-reset pull-out faucets.

[0005] This application provides a pull-out faucet, including a faucet body and a pull-out telescopic mechanism; The faucet body includes a curved section and a straight section, with the end of the straight section away from the curved section mounted on the countertop. The pull-out telescopic mechanism is installed inside the bend and straight pipe sections. The pull-out telescopic mechanism includes a pull-out component and a guide component. The guide component is installed inside the straight pipe section. The length of the guide component is greater than or equal to the length of the straight pipe section. One end of the pull-out component is located outside the bend, and the other end of the pull-out component is in sliding sealing cooperation with the guide component.

[0006] In some embodiments, the pull-out assembly includes a pull-out hose; the guide assembly includes a water-passing inner tube; and the other end of the pull-out hose is slidably sealed to the outer wall of the water-passing inner tube by a seal.

[0007] In some embodiments, the faucet body also includes a spring sleeved on the outer periphery of the pull-out hose; And an elastic tube is installed at one end of the sliding guide tube near the bend and located inside the bend. The pull-out hose passes through the elastic tube. The elastic tube has an annular stepped surface inside. One end of the spring is fixedly connected to the other end of the pull-out hose. The other end of the spring extends into the elastic tube and abuts against the stepped surface.

[0008] In some embodiments, a straight pipe segment snap-fit ​​is provided on the outer side of the sliding guide tube. The straight pipe segment snap-fit ​​is located in the middle region of the straight pipe segment along its length, and the sliding guide tube is snapped into place with the straight pipe segment through the straight pipe segment snap-fit.

[0009] In some embodiments, the pull-out assembly further includes a quick connector and a water-saving plate. The quick connector is installed at one end of the sliding guide tube, the inner water-passing tube is fitted with the quick connector, and the water-saving plate is installed on the quick connector.

[0010] In some embodiments, the pull-out faucet further includes a valve assembly installed in a branch pipe connected to a straight section of the faucet body. The inlet of the valve assembly is connected to the faucet inlet pipe, and the outlet of the valve assembly is connected to the end of the inner water pipe away from the bend via a waterway reversing assembly.

[0011] In some embodiments, the pull-out faucet further includes a threaded tube assembly installed under the countertop, wherein the straight section of the faucet body is locked to the countertop by the threaded tube assembly; one end of the guide assembly away from the curved section extends into the threaded tube assembly; and the water channel reversing assembly is partly located in the straight section above the countertop and partly located in the cavity of the threaded tube assembly below the countertop.

[0012] In some embodiments, the pull-out faucet further includes a valve assembly, both of which are fixedly mounted on the countertop. The inlet of the valve assembly is connected to the faucet's inlet pipe, and the outlet of the valve assembly is connected to the end of the inner water pipe away from the bend.

[0013] In some embodiments, the outlet of the valve assembly is provided with a mixed water outlet pipe connection, which passes through the toothed tube assembly and is connected to the inner water pipe.

[0014] The beneficial effects of this application are as follows: The pull-out faucet provided in this application avoids the problems of uneven sealing force and friction noise caused by the pull-out assembly sliding back and forth only within the straight-extending guide assembly. Simultaneously, by setting the length of the inner water-passing pipe in the guide assembly to be greater than or equal to the length of the straight pipe section, the sliding sealing stroke of the pull-out assembly within the straight pipe section is effectively extended, thereby significantly increasing the pull-out stroke of the pull-out assembly without increasing the external dimensions of the faucet. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model.

[0016] Figure 1 A cross-sectional view of the overall structure of a pull-out faucet provided in this application; Figure 2 An exploded view of a pull-out faucet provided in this application; Figure 3 A schematic diagram of the water channel for a pull-out faucet provided in this application; Figure 4 A schematic diagram of the pulled-out component of a pull-out faucet provided in this application, showing the pulled-out state. Figure 5 An assembly diagram of the pull-out component in a pull-out faucet provided in this application; Figure 6 An exploded view of the pull-out component in a pull-out faucet provided in this application; Figure 7 This application provides an overall structural schematic diagram of a pull-out faucet embodiment 1. Figure 8 A partial cross-sectional view of an embodiment 1 of a pull-out faucet provided in this application; Figure 9 This application provides an overall structural schematic diagram of a pull-out faucet embodiment 2. Figure 10A partial cross-sectional view of a pull-out faucet embodiment 2 provided in this application; Figure 11 This application provides an overall structural schematic diagram of a pull-out faucet embodiment 3. Figure 12 A partial cross-sectional view of a pull-out faucet embodiment 3 provided in this application.

[0017] Among them, 100 is the faucet body; 110 is the bend in the pipe; 120 is the straight pipe; 130 is the valve assembly; 140 is the countertop; 150 is the water channel reversing assembly; 160 is the threaded pipe assembly; 170 is the mixing water outlet pipe; and 180 is the faucet inlet pipe. 200. Pull-out telescopic mechanism; 210. Pull-out assembly; 211. Pull-out hose; 212. Quick connector; 213. Water-saving plate; 214. Pull-out head; 220. Guide assembly; 221. Elastic fitting; 222. Spring; 223. Inner water pipe; 224. Seal; 225. Sliding guide tube; 226. Straight pipe section clamp; 227. Stepped surface. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0019] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0020] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0021] This application provides a pull-out faucet, which solves the technical problem of insufficient pull-out stroke of the pull-out hose in the prior art.

[0022] The technical solution in this application is to solve the above-mentioned technical problems, and the general idea is as follows: like Figures 1-6 As shown, this application provides a pull-out faucet, including a faucet body 100 and a pull-out telescopic mechanism 200. The faucet body 100 is made of metal (such as stainless steel or copper alloy) or high-strength engineering plastic. The faucet body 100 includes a bent pipe section 110 and a straight pipe section 120 connected to each other. The end of the straight pipe section 120 away from the bent pipe section 110 is mounted on a countertop 140. A cavity is formed inside the bent pipe section 110 and the straight pipe section 120. Specifically, the connection method of the bent pipe section 110 and the straight pipe section 120 includes, but is not limited to, any one or more combinations of threaded connection, welding, snap-fit, crimping, or integral molding. Preferably, the bent pipe section 110 and the straight pipe section 120 are integrally molded to form a through pipe that is interconnected with each other. The bent pipe section 110 is preferably an arc-shaped pipe, and the straight pipe section 120 is a straight pipe extending along a fixed direction.

[0023] The pull-out telescopic mechanism 200 is installed inside the bend section 110 and the straight section 120. The pull-out telescopic mechanism 200 includes a pull-out component 210 and a guide component 220. The guide component 220 is installed inside the straight section 120. The length of the guide component 220 is greater than or equal to the length of the straight section 120. One end of the pull-out component 210 is located outside the bend section 110. The other end of the pull-out component 210 is in sliding sealing cooperation with the guide component 220. The pull-out component 210 can be operably pulled out from the bend section 110.

[0024] By setting the length of the guide component 220 of the pull-out telescopic mechanism 200 to be greater than or equal to the length of the straight pipe section 120, the sliding sealing stroke of the pull-out component 210 in the straight pipe section 120 is effectively extended, thereby significantly improving the pull-out stroke of the pull-out component 210 without increasing the external size of the faucet.

[0025] Meanwhile, since the pull-out assembly 210 only slides back and forth within the straight-extending guide assembly 220, the spring 222 can be reasonably arranged in the straight pipe section 120 area, avoiding the friction noise generated by its pressure against the wall in the bend section 110, thus significantly reducing operating noise; and the pull-out assembly 210 only achieves sliding sealing cooperation with the guide assembly 220 within the straight pipe section 120, effectively avoiding the problem of uneven force caused by the pull-out hose 211 and sealing structure passing through the arc section of the bend section 110, which leads to poor sealing performance, thereby significantly improving the reliability of the dynamic seal.

[0026] Furthermore, the end of the guide assembly 220 near the bend section 110 is flush with the end of the connecting bend section 110 of the straight section 120. This effectively extends the sliding sealing stroke of the pull-out assembly 210 within the straight section 120, thereby significantly increasing the pull-out stroke of the pull-out assembly 210 without increasing the external dimensions of the faucet.

[0027] The pull-out assembly includes a pull-out hose 211; the guide assembly includes a water-passing inner tube 223; the other end of the pull-out hose 211 is slidably sealed to the water-passing inner tube 223 via a sealing member 224. Figures 1-6 As shown, specifically, a sealing element 224 is fixed to one end of the pull-out hose 211. The pull-out hose 211 slides and seals with the water-passing inner tube 223 through the sealing element 224. The sealing element 224 is made of highly elastic materials such as silicone, fluororubber, or EPDM. The sealing element 224 and one end of the pull-out hose 211 are sealed and fixed by threaded engagement, embedding, bonding, or secondary injection molding. The sealing element 224 has a portion of its sidewall embedded between the outer wall of the water-passing inner tube 223 and the inner wall of the pull-out hose 211, thereby forming a sliding sealing fit.

[0028] The guide assembly 220 further includes a sliding guide tube 225, and the water-passing inner tube 223 is coaxially disposed inside the sliding guide tube 225. An axial gap is formed between the outer wall of the water-passing inner tube 223 and the inner wall of the sliding guide tube 225. One end of the pull-out hose 211 connected to the sealing member 224 slides axially within the gap between the outer wall of the water-passing inner tube 223 and the sliding guide tube 225.

[0029] The sliding guide tube 225 can be made of stainless steel, copper alloy or high-strength engineering plastic. The inner wall of the sliding guide tube 225 is smooth, wear-resistant and dimensionally stable. like Figures 1-6 As shown, the faucet body also includes a spring 222 sleeved on the outer periphery of the pull-out hose 211, wherein the spring 222 is a helical compression spring. Meanwhile, there is a gap between the outer wall of the pull-out hose 211 and the inner wall of the sliding guide tube 225; the spring 222 is located in the gap between the inner water pipe 223 and the sliding guide tube 225.

[0030] The faucet body also includes an elastic tube 221, which is installed at one end of the sliding guide tube 225 near the bend section 110 and located inside the bend section 110. The pull-out hose 211 passes through the elastic tube 221.

[0031] The elastic tube 221 has an annular stepped surface 227 inside. One end of the spring 222 is fixedly connected to the seal of the end of the pull-out hose near the straight section. The other end of the spring 222 extends into the elastic tube 221 and abuts against the annular stepped surface 227, so that the spring 222 is always in an elastically compressed state.

[0032] By providing the elastic fitting 221 at the junction of the bend section 110 and the straight section 120, space is provided for the spring 222. When the pull-out hose 211 is pulled out, the sealing element 224 slides to the top of the inner water pipe 223 and stops sliding. At this point, the spring 222 is compressed to its limit and is contained within the elastic fitting 221. Thus, the elastic fitting 221 and the compression spring 222 limit the sliding range of the end of the pull-out assembly 221 with the sealing element 224 to within the guide assembly 220. Furthermore, the compression spring 222 does not occupy the internal space of the straight section 120, allowing the pull-out hose 211 to have a longer linear sliding space.

[0033] One end of the sliding guide tube 225 is provided with an installation groove, snap-fit ​​or step structure that matches the elastic tube 221, so that the elastic tube 221 can be fixed to one end in a stable sleeve or embedding manner to form a continuous transitional guide channel.

[0034] The elastic tube 221 can be made of engineering plastics, such as PP (polypropylene) and POM (polyoxymethylene), which are elastic materials with a certain supporting strength. Its whole structure is in the form of a ring or corrugated tube, and its inner diameter is adapted to the outer diameter of the spring 222.

[0035] Furthermore, by sleeved spring 222 around the outer periphery of pull-out hose 211, and utilizing the stepped surface 227 on elastic fitting 221 and one end of pull-out hose 211 to jointly limit the two ends of spring 222, spring 222 is always in a controlled compression state, thereby providing stable and uniform restoring force for pull-out assembly 210. Simultaneously, since spring 222 is arranged outside the inner water-passing pipe 223 within the straight pipe section 120, frictional noise caused by pressure against the wall within the curved section 110 is avoided, significantly reducing operating noise. In addition, pull-out hose 211 only slides reciprocally outside the straight-extending inner water-passing pipe 223, with its dynamic sealing area entirely located within the straight pipe section 120. This ensures uniform force on seal 224 during movement and a stable sealing interface, effectively preventing seal failure due to bending deformation, and significantly improving the product's sealing reliability and service life. Moreover, compared to products where the seal enters the curved section of the bend during the pull-out process, the sealing performance is more reliable.

[0036] Furthermore, such as Figures 1-6As shown, the inner water pipe 223 is coaxially inserted inside the sliding guide pipe 225. The end away from the bend section can be fixedly connected to the sliding guide pipe 225 by welding, bonding, snapping, end face pressing, etc., thereby forming a stable support structure.

[0037] By introducing a sliding guide tube 225, a gap is formed between it and the outer wall of the inner water-passing pipe 223, axially constraining the spring 222 and the pull-out hose 211. This effectively prevents the spring 222 from radially shifting, chattering, or scraping against the pipe wall during compression or reset, significantly reducing operating noise and improving the smoothness of the reset action. Simultaneously, the sliding guide tube 225, acting as a rigid support frame, provides precise positioning and structural reinforcement for the inner water-passing pipe 223. Furthermore, it works in conjunction with the elastic pipe fitting 221 to form a "rigid-flexible" transitional guide structure at the junction of the bend section 110 and the straight section 120. This ensures smooth sliding of the pull-out hose 211 within the straight section while buffering its dynamic disturbances when entering and exiting the bend section 110. In addition, this design ensures that the dynamic seal is always confined to the straight section of the inner water-passing pipe 223 within the sliding guide tube 225, guaranteeing that the seal 224 operates under uniform stress, further improving sealing reliability and product durability.

[0038] Preferably, the outer wall of the sliding guide tube 225 is further provided with a straight pipe section snap-fit ​​component 226. The straight pipe section snap-fit ​​component 226 is located in the middle region of the straight pipe section 120 along its length. The straight pipe section snap-fit ​​component 226 and the straight pipe section 120 are connected and snap-fitted together through the sliding guide tube 225. The straight pipe section snap-fit ​​component 226 is simultaneously connected and fixed to the inner wall of the straight pipe section 120 and the outer wall of the sliding guide tube 225 at three points through interference fit, elastic snap, or threaded fastening, forming a stable radial and axial constraint to ensure that the sliding guide tube 225 does not shake or shift during long-term use.

[0039] like Figure 3 As shown, the pull-out assembly 210 is in its initial, unpulled state. The pull-out hose 211 is retracted within the bend and straight sections, and the end connected to the seal 224 is at the lowest point of the outer wall of the inner water pipe 223. The spring 222 is in a pre-compressed state. Figure 4 As shown, the pull-out assembly 210 is in the pull-out use state. The end of the pull-out hose 211 connected to the seal 224 slides along the outer wall of the inner water pipe 223 to the uppermost end of the guide assembly 220, that is, to the end of the straight pipe section 120 connected to the curved pipe section 110. The spring 222 is in the shortest compressed state and is accommodated in the elastic tube 221.

[0040] The end of the inner water pipe 223 away from the bend section 110 is the water inlet, and the end of the pull hose 211 away from the straight section 120 is the water outlet. Water flows into the inner water pipe 223 from the water inlet and then flows out from the water outlet at one end of the pull hose 211. The seal 224 effectively ensures the sealing between the pull hose 211 and the inner water pipe 223.

[0041] Preferred, such as Figure 5 , Figure 6 As shown, the pull-out assembly 210 also includes a quick connector 212 and a water-saving plate 213. The quick connector 212 is installed at one end of the guide assembly 220, and the inner water pipe 223 is installed in conjunction with the quick connector 212. The water-saving plate 213 is installed on the quick connector 212. The quick connector 212 is a standardized pipe connection accessory widely used in pull-out faucets, water purifiers, washing machine inlet pipes, etc. The water-saving plate 213 is a device used to control water flow and reduce water waste, commonly found in faucets, shower heads, and other water-using equipment. Therefore, the specific structures of the quick connector 212 and the water-saving plate 213 will not be described in detail.

[0042] By integrating a quick connector 212 at one end of the inner water pipe 223, not only is an efficient and sealed connection between the inner water pipe 223 and the external water supply pipeline achieved, but a standardized installation platform is also provided for the water-saving plate 213, improving the product's functionality and environmental performance. At the same time, the quick connector 212 and the inner water pipe 223 reliably seal together, avoiding the leakage risks and maintenance difficulties that may be caused by traditional welding or adhesive connections, and significantly improving assembly efficiency and long-term sealing reliability.

[0043] As one implementation method, such as Figure 7 , Figure 8 As shown, the pull-out faucet provided in this application also includes a valve assembly 130. In the field of faucet technology, the valve assembly 130 is a valve core structure used to control the opening and closing of water flow and the mixing of hot and cold water. Its specific form may include a valve core, a valve core seat and a handle. It is a conventional technical means known and widely used in the field, so it will not be described in detail here. The valve assembly 130 is installed on a branch pipe of the faucet body 100. The branch pipe is connected to the straight pipe section 120 and is located on one side of the straight pipe section 120. The valve assembly 130 is higher than the countertop 140.

[0044] In this embodiment, the length of the guide component 220 is equal to the length of the straight pipe section 120, that is, both ends of the guide component 220 are flush with both ends of the straight pipe section 120, thereby providing installation space for the guide component 220 for the entire straight pipe section 120.

[0045] The inlet of the valve assembly 130 is connected to the faucet inlet pipe 180, and the outlet of the valve assembly 130 is connected to the guide assembly 220 through a water channel reversing assembly 150.

[0046] In this embodiment, the straight pipe section 120 is formed by connecting straight pipe sections of different diameters, specifically, as follows: Figure 2 , 7 As shown in Figure 8, the straight pipe section 120 is composed of two sections, one of which is directly installed on the platform 140. The straight pipe section 120 contains a portion of the guide assembly 220 and a waterway reversing assembly 150, and is directly connected to the branch pipe containing the valve assembly 130. The other straight pipe section 120 is directly connected to the bend section 110.

[0047] The pull-out faucet also includes a threaded tube assembly 160, installed under the countertop. The faucet body 100 is locked to the countertop via the threaded tube assembly 160, thereby achieving a fixed connection between the threaded tube assembly 160 and one end of the straight pipe section 120. A water channel reversing assembly 150 connects the valve assembly 130 (above the countertop 140) to the lower end of the guide assembly 220. Part of the water channel reversing assembly 150 is above the countertop 140 within the straight pipe section 120, and part is below the countertop within the cavity of the threaded tube assembly 160. This allows both ends of the guide assembly 220 to be flush with both ends of the straight pipe section 120, effectively extending the sliding sealing stroke of the pull-out assembly 210 within the straight pipe section 120.

[0048] By integrating a valve assembly 130 onto the faucet body 100 and precisely guiding the water flow to the inner water pipe 223 of the guide assembly 220 via a water channel reversing assembly 150, independent control of the pull-out water function is achieved, avoiding the problems of chaotic water flow paths or unreliable switching in traditional structures. The water channel reversing assembly 150 can be a plastic reversing water channel fitting used to change the water flow path.

[0049] As a preferred implementation method, such as Figure 9 , Figure 10 As shown, the valve assembly 130 and the faucet body 100 of the pull-out faucet provided in this application are both fixedly mounted on the countertop 140. The length of the guide assembly 220 is set to be equal to the length of the straight pipe section 120, that is, the two ends of the guide assembly 220 are flush with the two ends of the straight pipe section 120. Thus, the entire length of the straight pipe section 120 provides installation space for the guide assembly 220, thereby extending the length of the guide assembly 220 and providing a longer sliding sealing stroke for the pull-out assembly 210.

[0050] The countertop 140 can be made of stainless steel, artificial stone, ceramic, or quartz stone, etc. The inlet of the valve assembly 130 is connected to the faucet inlet pipe 180, and the outlet of the valve assembly 130 is connected to the guide assembly 220 through a water channel reversing assembly 150. The water channel reversing assembly 150 is placed on the countertop 140, and a sealing connector seals the water channel reversing assembly 150 within it. The sealing connector can be a metal cover, which is connected to both the faucet body 100 and the valve assembly 130, fixing the faucet body 100 and the valve assembly 130 to the countertop 140. By fixing the valve assembly 130 and the faucet body 100 together on the countertop 140, a reasonable partitioned layout of functional modules is achieved. This facilitates independent operation of the switch and hot / cold adjustment by the user, while avoiding excessive occupation of the internal space of the faucet by the traditional integrated valve body. At the same time, the water channel reversing assembly 150 is connected to the valve outlet and the water inlet pipe 223, thereby accurately guiding the water into the water inlet pipe 223 of the guide assembly 220, making the water flow path simple and efficient, reducing bends and turbulence losses, and improving the stability of the water output.

[0051] As another preferred implementation, such as Figure 11 , Figure 12 As shown, in the pull-out faucet provided in this application, the threaded tube assembly 160 is fixedly connected to one end of the straight pipe section 120, and the faucet body 100 is locked onto the countertop through the threaded tube assembly 160. The valve assembly 130 and the faucet body 100 are both fixedly mounted on the countertop 140, belonging to the category of split-type faucets. The length of the guide assembly 220 is greater than or equal to the length of the straight pipe section 120. That is, the guide assembly 220 extends under the countertop 140 and into the threaded tube assembly 160. The inlet of the valve assembly 130 is connected to the faucet inlet pipe 180, and the outlet of the valve assembly 130 is connected to the mixing water outlet pipe 170. The mixing water outlet pipe 170 passes through the threaded tube assembly 160 and connects to the inner water pipe 223 of the guide assembly 220. By separately mounting the valve assembly 130 and the straight pipe section 120 on the countertop and connecting them externally via the mixing water outlet pipe 170, the straight pipe section 120 only accommodates the guide assembly 220, and allows one end of the guide assembly 220 to extend into the threaded tube assembly 160, thereby extending the length of the guide assembly 220 and providing a longer sliding seal stroke for the pull-out assembly 210.

[0052] By setting the threaded tube assembly 160 as the connection and locking medium between the faucet body 100 and the countertop 140, not only is the overall installation of the faucet stable and reliable sealing achieved, but also a neat channel is provided for the mixing water outlet pipe 170 to run through the bottom of the countertop to the inside of the faucet, avoiding the messy exposure of external pipelines and improving aesthetics and space utilization.

[0053] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0054] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A pull-out faucet, characterized in that, Includes the faucet body and the pull-out telescopic mechanism; The faucet body includes a curved section and a straight section, with the end of the straight section away from the curved section mounted on the countertop. The pull-out telescopic mechanism is installed inside the bend and straight pipe sections. The pull-out telescopic mechanism includes a pull-out component and a guide component. The guide component is installed inside the straight pipe section, and the length of the guide component is greater than or equal to the length of the straight pipe section. One end of the pull-out component is located outside the bend, and the other end of the pull-out component is in sliding sealing cooperation with the guide component.

2. The pull-out faucet as described in claim 1, characterized in that, The pull-out assembly includes a pull-out hose; the guide assembly includes a water-passing inner tube; the other end of the pull-out hose is slidably sealed to the outer wall of the water-passing inner tube by a sealing element.

3. The pull-out faucet as described in claim 2, characterized in that, The guiding assembly further includes a sliding guide tube, which is fixedly connected to the straight pipe section; the water-passing inner pipe is coaxially disposed inside the sliding guide tube; the other end of the pull-out hose connected to the sealing element slides axially between the water-passing inner pipe and the sliding guide tube.

4. The pull-out faucet as described in claim 3, characterized in that, The faucet body also includes a spring sleeved around the outer periphery of the pull-out hose; And an elastic tube is installed at one end of the sliding guide tube near the bend and located inside the bend. The pull-out hose passes through the elastic tube. The elastic tube has an annular stepped surface inside. One end of the spring is fixedly connected to the other end of the pull-out hose. The other end of the spring extends into the elastic tube and abuts against the stepped surface.

5. The pull-out faucet as described in claim 4, characterized in that, The outer wall of the sliding guide tube is also provided with a straight pipe section snap-fit ​​component. The straight pipe section snap-fit ​​component is located in the middle area of ​​the length direction of the straight pipe section, and the sliding guide tube and the straight pipe section form a snap-fit ​​engagement through the straight pipe section snap-fit ​​component.

6. The pull-out faucet as described in claim 4, characterized in that, The pull-out assembly also includes a quick connector and a water-saving plate. The quick connector is installed at one end of the guide assembly, the inner water pipe is installed in conjunction with the quick connector, and the water-saving plate is installed on the quick connector.

7. The pull-out faucet as described in claim 2, characterized in that, The pull-out faucet also includes a valve assembly, which is installed inside a branch pipe connected to the straight section of the faucet body. The inlet of the valve assembly is connected to the faucet inlet pipe, and the outlet of the valve assembly is connected to the end of the inner water pipe away from the bend through a waterway reversing component.

8. The pull-out faucet as described in claim 7, characterized in that, The pull-out faucet also includes a threaded tube assembly, which is installed under the countertop. The straight section of the faucet body is locked to the countertop by the threaded tube assembly. The end of the guide assembly away from the curved section extends into the threaded tube assembly. The water channel reversing assembly is partly located in the straight section above the countertop and partly located in the cavity of the threaded tube assembly below the countertop.

9. The pull-out faucet as described in claim 2, characterized in that, The pull-out faucet also includes a valve assembly. Both the valve assembly and the faucet body are fixedly mounted on the countertop. The inlet of the valve assembly is connected to the faucet's inlet pipe, and the outlet of the valve assembly is connected to the end of the inner water pipe away from the bend.

10. The pull-out faucet as described in claim 8, characterized in that, The outlet of the valve assembly is connected to a mixed water outlet pipe, which passes through the toothed tube assembly and is connected to the inner water pipe.

Images