Lifting adjusting structure and water outlet device

Abstract

This utility model discloses a lifting and adjusting structure and a water outlet device. The lifting and adjusting structure is used to adjust the position of a moving component relative to a fixed component along a first direction and achieve water passage connection. The fixed component includes an outer tube, an inner tube, and an annular seal. The outer and inner tubes are fixed relative to each other and both extend along the first direction. The inner tube is placed inside the outer tube, and the cross-section of the outer edge of the inner tube is circular, forming a sliding cavity between the inner and outer tubes. The annular seal is sleeved on the outer wall of the inner tube. The moving component includes an insert extending along the first direction, which has a water passage with a circular cross-section. The insert is inserted into the sliding cavity along the first direction, and the inner tube passes through the water passage along the first direction, and is sealed and connected to the water passage through the annular seal. This utility model provides a lifting and adjusting structure and a water outlet device. The water outlet device using this mechanism achieves height adjustment in irregularly shaped rods, with reliable sealing and a compact structure.

Description

Technical Field

[0001] This utility model relates to the technical field of water outlet devices, specifically to a lifting and adjusting structure and a water outlet device. Background Technology

[0002] In existing technologies, liftable shower rods with overhead showers mostly rely on the design of extendable round pipes. While this design is relatively mature in structure and function, the predominantly round shape of the rods limits user choices in appearance and style. With the diversification of bathroom products, users' demands for the aesthetic design of shower rods are increasing, especially for square tube rods due to their modern look and beauty. However, the lifting technology for square tube shower rod assemblies still has technical limitations and sealing defects. Specifically, if square rods are used directly as the water passage, the complexity of sealing technology for irregularly shaped pipes makes it difficult to guarantee sealing performance, resulting in poor compatibility and a high risk of leakage. To solve this problem, existing technologies attempt to nest a round water passage pipe inside the square rod to address the sealing issue. However, this requires bending the water passage pipe into an "N" shape to allow for the lifting stroke, leading to redundant water circuit structure, increased space occupation, and water flow resistance at the bend, reducing water flow efficiency. Alternatively, a telescopic pipe can be used for the water inlet. While telescopic pipes simplify height adjustment, their high requirements for material elasticity increase costs, and long-term use can lead to fatigue deformation and seal failure, making maintenance difficult. These factors collectively limit the widespread application of square shower rods. Therefore, there is an urgent need for a height adjustment solution that can balance the aesthetic requirements of irregularly shaped rods, sealing reliability, and structural compactness to overcome the limitations of existing technologies. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned defects or problems in the background technology and provide a lifting adjustment structure and water outlet device. The water outlet device using this mechanism can achieve height adjustment in irregularly shaped rods, with reliable sealing and compact structure.

[0004] To achieve the above objectives, the various embodiments of this utility model adopt the following technical solutions, but are not limited to the following solutions:

[0005] The first technical solution relates to a lifting and adjusting structure, which is used to adjust the position of a moving component relative to a fixed component along a first direction and to achieve water passage connection; the fixed component includes an outer tube body, an inner tube body, and an annular seal; the outer tube body and the inner tube body are fixed relative to each other and both extend along the first direction, the inner tube body is placed inside the outer tube body and the cross-section of the outer edge of the inner tube body is circular, and a sliding cavity is formed between the inner tube body and the outer tube body; the annular seal is sleeved on the outer wall of the inner tube body; the moving component includes an insert extending along the first direction, the insert having a water passage with a circular cross-section; the insert is inserted into the sliding cavity along the first direction, the inner tube body passes through the water passage along the first direction, and is sealed and connected to the water passage through the annular seal.

[0006] The second technical solution is based on the first technical solution, wherein the cross-sections of the inner wall of the outer tube and the outer edge of the insert are both non-circular.

[0007] The third technical solution is based on the first technical solution, and further includes a locking component, which is threadedly engaged with the outer tube body and adapted to abut against the outer edge surface of the insert.

[0008] The fourth technical solution is based on the third technical solution, wherein the outer tube body includes an outer tube body and an end fixing member. The end fixing member is fixed relative to the outer tube body and is provided with a threaded hole and an insertion seat. The locking member is threadedly engaged with the threaded hole, and the insertion seat is inserted into the gap between the outer tube body and the insertion member.

[0009] The fifth technical solution is based on the fourth technical solution, wherein the locking member is adapted to be adjusted along a second direction perpendicular to the first direction to drive the insert seat to tighten or loosen the outer edge surface of the insert, thereby fixing or releasing the position of the insert in the first direction.

[0010] The sixth technical solution is based on the first technical solution, wherein the insertion end of the insert is fitted with a sliding sleeve to reduce the frictional resistance when the insert moves relative to the outer tube body in the first direction.

[0011] The seventh technical solution is based on the first technical solution, wherein the two ends of the inner tube are fixedly connected to connectors, and an annular sealing element is sleeved on the outer wall of the connectors.

[0012] The eighth technical solution is based on any one of the first to seventh technical solutions, a water outlet device, including a shower assembly and the above-mentioned lifting adjustment structure, wherein the shower assembly includes a top spray shower that is detachably connected to the movable component.

[0013] The ninth technical solution is based on the eighth technical solution, wherein the moving component further includes a water outlet component connected to the insert along the second direction, and the water outlet component is detachably connected to the top spray shower head.

[0014] The tenth technical solution is based on the ninth technical solution, wherein the water outlet component is provided with a water outlet channel with a vertical cross section of a circle. The water outlet channel is connected to the water passage through the first adapter and to the water outlet channel of the top spray shower head through the second adapter.

[0015] As can be seen from the above description of the various embodiments of the present utility model, compared with the prior art, the various embodiments of the present utility model have the following beneficial effects:

[0016] In the first technical solution and related embodiments, both the outer edge of the inner tube and the water passage adopt a circular cross-section design, forming a circumferential contact surface with the annular seal to ensure uniform distribution of sealing pressure and effectively prevent water leakage. The circular inner tube has low sliding friction resistance within the circular water passage, and the sealing performance is not affected by the adjustment position. It can maintain a good seal at any height, avoiding the uneven sealing problem that may occur with irregular structures.

[0017] In the second technical solution and related embodiments, the design requirements of polygonal or irregular shapes are adapted to expand the application scenarios of the product, while maintaining the sealing performance of the internal water channels.

[0018] In the third technical solution and related embodiments, the outer tube body is locked by a locking component with threads, which enables quick position fixing and improves the convenience and stability of adjustment.

[0019] In the fourth technical solution and related embodiments, the insertion seat fills the gap between the outer tube body and the insertion piece, reducing shaking and enhancing the uniformity of the locking member's clamping of the insertion piece.

[0020] In the fifth technical solution and related embodiments, the locking member cooperates with the insertion seat to fix or loosen the position of the insertion member in the first direction.

[0021] In the sixth technical solution and related embodiments, the sliding sleeve reduces frictional loss during the lifting and lowering process of the insert, extends the component life, and improves the smoothness of operation.

[0022] In the seventh technical solution and related embodiments, connectors are provided at both ends of the inner pipe, and a ring-shaped seal is used to achieve watertight communication between the connectors and the water passage and the water inlet. This embodiment is applicable to inner pipes made of PVC or PEX pipes. Utilizing the good flexibility and low cost of these types of pipes, it effectively solves the problems of poor assembly compatibility and high installation difficulty caused by the high rigidity of traditional stainless steel pipes, while also reducing material costs.

[0023] In the eighth technical solution and related embodiments, the lifting and adjusting structure is applied to the water outlet device to realize the height adjustment function of the water outlet device, and to ensure the sealing and stability of the water flow, thereby meeting the diverse needs of users for the appearance of the water outlet device.

[0024] In the ninth technical solution and related embodiments, both the water outlet and the insert are irregularly shaped parts, and the vertical connection design optimizes the water channel layout and avoids the traditional bending structure.

[0025] In the tenth technical solution and related embodiments, the water outlet is connected to the water channel of the insert and the water outlet of the top spray shower head through the first adapter and the second adapter respectively, to ensure the smooth flow of water. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is an exploded view of the water outlet device in the embodiment;

[0028] Figure 2 for Figure 1 Enlarged view of point A;

[0029] Figure 3 This is a schematic diagram of the water outlet device assembly in an embodiment.

[0030] Figure 4 This is a schematic diagram of the moving component structure in an embodiment;

[0031] Figure 5 This is a schematic diagram of the moving components and the overhead shower head in an embodiment;

[0032] Figure 6 This is a schematic diagram of the cross-section of the insert in the embodiment;

[0033] Figure 7 This is a schematic diagram of the cross-section of the outer tube in an embodiment;

[0034] Figure 8 This is a side sectional view of the water outlet device in the embodiment;

[0035] Figure 9 This is a cross-sectional view of the rear of the water outlet device in the embodiment;

[0036] Figure 10 for Figure 9 Sectional view of plane aa;

[0037] Figure 11 for Figure 9 BB-shaped sectional view;

[0038] Figure 12 for Figure 9 The cc-plane sectional view.

[0039] Explanation of key figure labels:

[0040] 1. Outer tube body; 2. Inner tube body; 3. Annular seal; 4. Insert; 5. Water outlet; 6. Locking element; 7. Top spray shower head; 8. Slide seat; 10. Outer tube body; 11. Sliding cavity; 12. Nut; 13. Insert seat; 14. First decorative box; 15. Threaded hole; 16. Fixing element; 17. Second self-tapping screw; 21. Connector; 41. Water passage; 42. Sliding sleeve; 43. First fastening screw; 44. First adapter; 45. First O-ring; 46. Fastener; 47. Second fastening screw; 48. Screw hole; 51. Water outlet; 52. First adapter; 53. Second adapter; 54. Second O-ring; 55. Third fastening screw; 56. Second decorative cover; 57. Third O-ring; 131. Insertion part; 132. Clamping part; 133. First self-tapping screw; 134. Expansion tube; 135. First direction X; 136. Second direction Y. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are preferred embodiments of the present utility model and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0042] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.

[0043] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing this utility model and simplifying the description. It does not 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 limiting the specific protection scope of this utility model.

[0044] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or components.

[0045] In the claims, description and accompanying drawings of this utility model, the terms "comprising", "having", and variations thereof are used to mean "including but not limited to".

[0046] In this embodiment, for the sake of reference to the accompanying drawings and for ease of explanation, the first direction X is defined as the downward direction, and the second direction Y is the left-right direction. However, this does not imply any limitation on the directionality of this patent. In this patent, it is sufficient that the first direction X and the second direction Y are perpendicular (or orthogonal).

[0047] See Figure 1 , Figure 1 A lifting and adjusting structure is shown, which is used to adjust the position of a moving component relative to a fixed component along a first direction X and to achieve water channel communication, including a fixed component, a moving component and a locking element 6.

[0048] Fixed components, such as Figure 1 and Figure 2 As shown, it includes an outer tube 1, an inner tube 2, and an annular seal 3. Figure 8 As shown, the outer tube 1 and the inner tube 2 are fixed relative to each other and both extend along the first direction X. The inner tube 2 is placed inside the outer tube 1, and a sliding cavity 11 is formed between the inner tube 2 and the outer tube 1. Figure 2 As shown, the annular seal 3 is fitted onto the outer wall of the inner tube 2.

[0049] The outer tube body 1 includes the outer tube body 10 and the end fixing member.

[0050] The outer tube body 10 is made of extruded aluminum alloy profile, specifically aluminum alloy 6063. The cross-section of the inner wall of the outer tube body 10 is non-circular. Specifically, the outer tube body 10 can adopt various non-circular shapes such as square, rectangular, or racetrack-shaped cross-sections. In this embodiment, the outer tube body 10 has a square tubular cross-section. Figure 7 The figure shows a cross-sectional view of the outer tube body 10, with a square opening. A square sliding cavity 11 is provided inside the outer tube body 2 to accommodate the moving components. This embodiment optimizes structural adaptability to meet the requirements of square rods and satisfies user preferences for appearance.

[0051] like Figure 2 and Figure 10 As shown, the end fixing member is fixed relative to the outer tube body 10 and is provided with a threaded hole 15 and an insertion seat 13. Specifically, the end fixing member includes a nut 12, an insertion seat 13, and a first decorative box 14. In this embodiment, the nut 12 is a square nut 12, which is provided with a threaded hole 15.

[0052] The insertion base 13 includes an integrally formed insertion portion 131 and a clamping portion 132, with an opening between them. The insertion portion 131 is inserted into the outer tube body 10, so that the clamping portion 132 sits on the insertion end of the outer tube body 10. Specifically, through holes are provided on both sides of the opening, and the insertion base 13 can be fixed to the wall by a first self-tapping screw 133 and an expansion tube 134 to ensure the stability of the outer tube body 1 relative to the wall. In this embodiment, the insertion base 13 is made of nylon material.

[0053] The first decorative box 14 is placed over the insertion socket to cover the insertion socket 13 and improve the overall aesthetics.

[0054] like Figure 1 and Figure 9 As shown, the outer edge of the inner tube 2 has a circular cross-section. Specifically, the inner tube 2 is a water pipe with a circular cross-section, and the material can be stainless steel, PVC, or PEX. Stainless steel pipes are more expensive due to their high rigidity, and the compatibility requirements with the insert 4 are relatively strict. In this embodiment, the inner tube 2 is made of PVC or PEX pipe. However, the sealing structure between these two types of pipes and the circular water channel in the moving component is difficult to manufacture. To ensure reliable sealing between the inner tube 2 and the moving component, connectors 21 are fixedly connected to both ends of the inner tube 2. A ring-shaped sealing element 3 is fitted onto the connector 21 to achieve watertight communication between the connector 21 and the moving component.

[0055] In this embodiment, the connector 21 is a copper joint. The connector 21 is fixedly connected to the inner tube 2 via a heat fusion process. This heat fusion process achieves a seamless seal, eliminating the risk of leakage at its source and effectively reducing subsequent maintenance costs.

[0056] For the sealing connection of the connectors 21 at both ends of the inner tube 2, sealing grooves are provided on the outer periphery of the connectors 21 at both ends, and annular seals 3 are fitted into the sealing grooves. In this embodiment, the annular seals 3 are O-rings. With this design, a reliable sealing connection can be formed between one end of the inner tube 2 and the moving component, and a sealing connection can be achieved between the other end and the water inlet.

[0057] In this embodiment, the inner pipe body 2 is made of PVC pipe or PEX pipe. By utilizing the good flexibility and low cost of this type of pipe, the problems of poor assembly compatibility and high installation difficulty caused by the high rigidity of traditional stainless steel pipe are effectively solved, while reducing material costs. By setting connectors 21 at both ends of the inner pipe body 2, the watertight connection between the connectors 21 and the water passage 41 and the water inlet is achieved by the annular seal 3.

[0058] To achieve the nesting of the outer tube 1 of the irregular rod and the inner tube 2 with a circular cross-section, this embodiment uses a fixing member 16 to fix the inner tube 2 in the center inside the sliding cavity 11.

[0059] Specifically, such as Figure 1 , Figure 8 , Figure 9 and Figure 12 As shown, the fixing member 16 is a split-type fixing connector, consisting of two independent connectors. During installation, the two connectors of the fixing member 16 wrap around the inner tube 2, and then two second self-tapping screws 17 pass through the outer wall of the outer tube 1 and connect to the two connectors to achieve a fixed lock, thereby fixing the inner tube 2 in the center of the sliding cavity 11. In this embodiment, two fixing members 16 are provided, which respectively lock the inner tube 2 at the bottom and middle positions of the outer tube 1 along the first direction, ensuring that the inner tube 2 is installed stably.

[0060] The moving component includes an insert 4 extending along a first direction X. The insert 4 has a water passage 41 with a circular cross-section, and the cross-section of the outer edge of the insert 4 is non-circular. Specifically, the insert 4 can adopt various non-circular shapes such as square, rectangular, or racetrack-shaped cross-sections. In this embodiment, the cross-section of the outer edge of the insert 4 is a square tubular structure, which is made of extruded aluminum alloy profile, specifically aluminum alloy 6063. Figure 4 As shown, the center of the insert 4 is a water passage 41 with a circular cross-section.

[0061] The insert 4 is inserted into the sliding cavity 11 along the first direction X, and the inner tube 2 is inserted into the water passage 41 along the first direction X, and is sealed and connected to the water passage 41 by the annular seal 3.

[0062] Specifically, the outer edge shape of the insert 4 is adapted to the sliding cavity 11. Although the outer tube 1 and the insert 4 can adopt various non-circular shapes such as square, rectangle, racetrack, etc., as long as the cross-section of the inner tube 2 and the water passage 41 are both circular, the sealing structure between the two can be guaranteed.

[0063] In this embodiment, by making the cross-section of the sliding cavity 11 non-circular and adapting it to the outer edge shape of the insert 4, it is compatible with various rod shapes and expands the application scenarios.

[0064] In this embodiment, the inner tube 2 and the circular water passage 41 inside the insert 4 form a coaxial nested structure. During sealing, the sealing effect between the annular seal 3 on the connector 21 and the inner wall of the water passage 41 is achieved by the interference fit.

[0065] like Figure 5 and Figure 11As shown, the insertion end of the insert 4 is fitted with a sliding sleeve 42 to reduce the frictional resistance when the insert 4 moves relative to the outer tube 1 along the first direction X. Specifically, the sliding sleeve 42 is made of plastic material; in this embodiment, the sliding sleeve 42 is made of LDPE thermoplastic. The sliding sleeve 42 can reduce the frictional resistance of the insert 4 during lifting and lowering, extend product life, and improve operational smoothness. Specifically, as... Figure 4 As shown, screw holes 48 are provided on both sides of the water channel 41 of the insert 4, and the sliding sleeve 42 is fixed in the insert 4 by the first fastening screw 43 passing through the screw holes 48.

[0066] Locking component 6, such as Figure 2 and Figure 10 As shown, the locking member 6 is threadedly engaged with the outer tube body 1 and adapted to abut against the outer edge surface of the insert 4. The locking member 6 is adapted to be adjusted in a second direction to drive the insert seat 13 to tighten or loosen the outer edge surface of the insert 4, thereby fixing or releasing the position of the insert 4 in a first direction. Specifically, the locking member 6 is an internal hexagonal flat-end set screw. The insert seat 13 of the end fixing member is inserted into the gap between the outer tube body 10 and the insert 4. Specifically, the insertion portion 131 of the insert seat 13 is inserted into the gap between the outer tube body 10 and the insert 4 located in the sliding cavity 11, and the clamping portion 132 of the insert seat 13 is used to clamp the insert 4. The locking member 6 is threadedly engaged with the threaded hole 15 of the nut 12 of the end fixing member. Since the insert seat 13 is made of nylon material, which is elastic, the locking member 6 passes through the nut 12 and presses against the clamping portion 132. The insertion 4 is clamped by the deformation of the clamping portion 132, thereby realizing the height adjustment and locking functions. In practical operation, tightening the set screw causes its end to press against the clamping part 132, causing it to contract inward and clamp the insert 4; loosening the set screw causes the clamping part 132 to return to its original shape, releasing the insert 4 and achieving height adjustment in the first direction. Users can easily adjust the height of the insert 4 using only a hex wrench, without disassembling any parts, meeting the need for quick adjustment in shower scenarios. In this embodiment, there are two sets of locking members 6, which clamp the clamping part 132 from both sides in the second direction Y, allowing the clamping part 132 to clamp or release the insert 4.

[0067] In this embodiment, both the outer edge of the inner tube and the water passage adopt a circular cross-section design, forming a circumferential contact surface with the annular seal to ensure uniform distribution of sealing pressure and effectively prevent leakage. The circular inner tube has low sliding friction resistance within the circular water passage, and the sealing performance is not affected by the adjustment position. It can maintain a good seal at any height, avoiding the uneven sealing problems that may occur with irregularly shaped structures.

[0068] A water outlet device, such as Figure 1 and Figure 3 As shown, it is fixedly installed on the wall and includes a shower assembly and the aforementioned lifting and adjusting structure.

[0069] The shower assembly includes an overhead shower head 7 detachably connected to the movable component, and a handheld shower head (not shown in the figure) can be added if needed. The handheld shower head is movably connected to the outer tube body 1 via a slide 8 fixed to the outer tube body 1, allowing the user to flexibly adjust the position of the handheld shower head as needed.

[0070] like Figure 1 and Figure 8 As shown, the movable component also includes a water outlet 5 connected to the insert 4 along the second direction Y, and the water outlet 5 is detachably connected to the overhead shower head 7.

[0071] The water outlet component 5 is provided with a water outlet channel 51 with a vertical cross section of a circle. The water outlet channel 51 is connected to the water passage 41 through the first adapter 44, and is connected to the water outlet of the top spray shower head 7 through the second adapter.

[0072] Specifically, such as Figure 4 As shown, the first adapter 44 is a 90° adapter. In this embodiment, the first adapter 44 is made of PA66+30%GF black (water-resistant) material. The first adapter 44 is watertightly connected to the water passage 41 and the water outlet 51 via the first O-ring 45.

[0073] After the water passage 41 and the water outlet 51 are connected by the first adapter 44, the rod parts of the insert 4 and the water outlet 5 are connected by fastener 46 and second fastening screw 47.

[0074] The water outlet component 5 is equipped with a water outlet interface, which is connected to the water outlet path of the overhead shower head 7 through a second adapter component.

[0075] Specifically, the second adapter includes a detachably connected first adapter 52 and a second adapter 53. The first adapter 52 is located at the end of the water outlet 5 in its extending direction, used to redirect the water flow 90° to the water outlet interface. The first adapter 52 can be made of copper or SUS201 stainless steel and requires surface treatment. The first adapter 52 uses a second O-ring 54 to achieve a watertight seal with the water outlet channel 51 and is fixedly connected to the water outlet 5 by a third fastening screw 55. At the end of the first adapter 52 along the second direction Y, a second decorative cover 56 conceals the third fastening screw 55, improving the overall aesthetics. The second adapter 53 is located in the water outlet direction and uses a G1 / 2 connector for easy connection to the overhead shower head 7. One end of the second adapter 53 uses a third O-ring 57 to achieve a watertight seal with the first adapter 52, and the other end connects to the water outlet of the overhead shower head 7.

[0076] In this embodiment, the first adapter 44 facilitates the connection between the insert 4 and the water outlet 5, enhancing the sealing reliability at the corner. The second adapter facilitates the connection of the overhead shower head 7 and enhances the sealing reliability of the connection.

[0077] In this embodiment, the lifting and adjusting structure is applied to the water outlet device to realize the height adjustment function of the water outlet device, and to ensure the sealing and stability of the water flow, thereby meeting the diverse needs of users for the appearance of the water outlet device.

[0078] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this utility model, but does not constitute a limitation on the scope of protection of this utility model. Modifications, equivalent substitutions, or other improvements to the embodiments of this utility model or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this utility model or the foregoing embodiments, should all be included within the scope of protection of this utility model.

Claims

1. A lifting and adjusting structure for adjusting the position of a moving component relative to a fixed component along a first direction and achieving waterway connection, characterized in that: The fixing assembly includes an outer tube (1), an inner tube (2), and an annular seal (3); the outer tube (1) and the inner tube (2) are fixed relative to each other and both extend along a first direction (X); the inner tube (2) is placed inside the outer tube (1) and the cross-section of the outer edge of the inner tube (2) is circular; a sliding cavity (11) is formed between the inner tube (2) and the outer tube (1); The annular seal (3) is fitted onto the outer wall of the inner tube (2); The movable component includes an insert (4) extending along a first direction (X), the insert (4) having a water passage (41) with a circular cross-section; The insert (4) is inserted into the sliding cavity (11) along the first direction (X), and the inner tube (2) passes through the water passage (41) along the first direction (X) and is sealed and connected to the water passage (41) through the annular seal (3).

2. The lifting and adjusting structure as described in claim 1, characterized in that, The cross-sections of the inner wall of the outer tube (1) and the outer edge of the insert (4) are both non-circular.

3. The lifting and adjusting structure as described in claim 1, characterized in that, It also includes a locking element (6), which is threadedly engaged with the outer tube body (1) and adapted to abut against the outer edge of the insert (4).

4. The lifting and adjusting structure as described in claim 3, characterized in that, The outer tube body (1) includes an outer tube body (10) and an end fixing member. The end fixing member is fixed relative to the outer tube body (10) and is provided with a threaded hole (15) and an insertion seat (13). The locking member (6) is threadedly engaged with the threaded hole (15). The insertion seat (13) is inserted into the gap between the outer tube body (10) and the insertion member (4).

5. The lifting and adjusting structure as described in claim 4, characterized in that, The locking member (6) is adapted to be adjusted along a second direction (Y) perpendicular to the first direction (X) to drive the insert (13) to grip or loosen the outer edge of the insert (4) to fix or release the position of the insert (4) in the first direction.

6. The lifting adjustment structure as described in claim 1, characterized in that, The insertion end of the insert (4) is fitted with a sliding sleeve (42) to reduce the frictional resistance when the insert (4) moves relative to the outer tube (1) in the first direction (X).

7. The lifting and adjusting structure as described in claim 1, characterized in that, The inner tube (2) is fixed to both ends with connectors (21), and the annular seal (3) is sleeved on the outer wall of the connector (21).

8. A water outlet device, characterized in that, It includes a shower assembly and a lifting adjustment structure as described in any one of claims 1 to 7, wherein the shower assembly includes an overhead shower head (7) detachably connected to a movable component.

9. A water outlet device as described in claim 8, characterized in that, The movable component also includes a water outlet (5) connected to the insert (4) along the second direction (Y), the water outlet (5) being detachably connected to the overhead shower head (7).

10. A water outlet device as described in claim 9, characterized in that, The water outlet component (5) is provided with a water outlet channel (51) with a vertical cross section of a circle. The water outlet channel (51) is connected to the water passage channel (41) through the first adapter (44) and connected to the water outlet channel of the top spray shower (7) through the second adapter.

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