Adjustable shampoo basin

Abstract

The utility model discloses an adjustable shampoo basin, which relates to the technical field of sanitary products and comprises a base, a fixing plate is arranged on the upper side of the base, a first connecting ring is arranged on the upper side of the fixing plate, and the first connecting ring is provided with a circular mounting hole; an overturning plate is arranged on the lower side of the pot body, a second connecting ring is arranged on the lower side of the overturning plate, and a non-circular mounting hole is formed in the second connecting ring; the expansion sleeve comprises a non-circular inserting part at the tail end and an expansion part at the head end; the expansion bolt is inserted into the expansion sleeve; when the angle of the basin body needs to be adjusted, the expansion bolt is loosened, so that the angle of the basin body can be conveniently adjusted to adapt to different requirements, and after the angle of the basin body is adjusted, the expansion bolt is tightened, so that the basin body can be easily fixed, and the basin body is ensured to be stable and reliable enough during use.

Description

Technical Field

[0001] This utility model relates to the field of bathroom product technology, and in particular to an adjustable shampoo basin. Background Technology

[0002] Shampoo basins are commonly used in the medical, massage, and hairdressing industries. When using them, the user needs to place their head over the basin to wash their hair. Existing shampoo basins are fixed to a base or other location, making it difficult to adjust the angle and position of the head when it's resting on the basin, resulting in less than comfortable use. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an adjustable shampoo basin.

[0004] An adjustable shampoo basin according to an embodiment of the present invention includes: a base, a fixing plate disposed on the upper side of the base, a first connecting ring disposed on the upper side of the fixing plate, the first connecting ring having a circular mounting hole; a basin body, located above the base, a flip plate disposed on the lower side of the basin body, a second connecting ring disposed on the lower side of the flip plate, the second connecting ring having a non-circular mounting hole; and an expansion sleeve, the expansion sleeve including a non-circular insertion portion and an expansion portion, wherein the direction of the expansion sleeve near the non-circular insertion portion is defined as the tail end, and the direction of the expansion sleeve near the expansion portion is defined as the head end. The non-circular insertion part is inserted into the non-circular mounting hole, and the expansion part is inserted into the circular mounting hole. The inner sidewall of the expansion part has an inner support surface, and the outer sidewall of the expansion part has an outer support surface. An expansion bolt is inserted into the expansion sleeve. The expansion bolt has a horizontal axis that extends in the left-right direction. The basin can rotate back and forth along the horizontal axis. The outer sidewall of the expansion bolt has a bolt support surface that can abut against the inner support surface, and the outer support surface can abut against the wall of the non-circular mounting hole.

[0005] According to some embodiments of the present invention, a first vertical connecting plate is provided on the upper side of the fixing plate, and the first connecting ring is located on the upper side of the first vertical connecting plate; a second vertical connecting plate is provided on the lower side of the flipping plate, and the second connecting ring is located on the lower side of the second vertical connecting plate.

[0006] According to some embodiments of the present invention, the first vertical connecting plate is located at the upper left or upper right position of the second vertical connecting plate.

[0007] According to some embodiments of the present invention, an expansion slit is provided on the expansion part, and the expansion slit divides the expansion part into a plurality of expansion pieces.

[0008] According to some embodiments of the present invention, a transition connection portion is provided between the non-circular insertion portion and the expansion portion, and the transition connection portion is circular in shape.

[0009] According to some embodiments of the present invention, the bolt support surface is a conical surface, and the diameter of the head end of the bolt support surface is greater than the diameter of the tail end of the bolt support surface.

[0010] According to some embodiments of the present invention, the tail end of the first connecting ring is aligned with the head end of the second connecting ring, a sealing plate is provided at the tail end of the second connecting ring, a sealing plate screw hole is provided on the sealing plate, and the tail end of the expansion bolt has a bolt thread, and the bolt thread is threadedly connected to the sealing plate screw hole.

[0011] According to some embodiments of the present invention, a nut is fitted on the expansion bolt, the nut is threadedly connected to the bolt thread, the nut is located in the direction away from the expansion sleeve of the second connecting ring, and the end face of the nut near the head end is locked against the side wall of the sealing plate near the tail end.

[0012] According to some embodiments of the present invention, a corrugated pipe is provided between the base and the basin, and both the fixing plate and the flipping plate are located inside the corrugated pipe.

[0013] According to some embodiments of this utility model, a limiting post is provided on the lower side of the flip plate, and the limiting post is threadedly connected to the flip plate. The lower end of the limiting post can press against the upper side of the fixing plate.

[0014] The adjustable shampoo basin according to the embodiments of this utility model has at least the following technical effects:

[0015] 1. When the angle of the basin needs to be adjusted, loosen the expansion bolts so that the basin can be easily adjusted to adapt to different needs. After the basin is adjusted to the desired angle, tighten the expansion bolts to easily fix the basin and ensure that the basin is stable and reliable enough during use.

[0016] 2. The limiting posts of the flip plate can control the range of the basin's flipping angle. Even if the basin becomes loose accidentally, it can limit the basin's rotation and avoid danger. The limiting posts can also serve as an auxiliary support structure for the basin, making it safer and more reliable to use.

[0017] 3. The corrugated pipe can protect the adjustable connection structures such as the first connecting ring, the second connecting ring, the expansion sleeve, and the expansion bolts, preventing these adjustable connection structures from getting wet and affecting their use, and ensuring a sufficiently long service life.

[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] Additional aspects and advantages of this invention 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 the adjustable shampoo basin of this utility model;

[0021] Figure 2 This is a perspective view of the adjustable shampoo basin of this utility model;

[0022] Figure 3 This is an exploded view of the adjustable shampoo basin of this utility model;

[0023] Figure 4 This is a perspective view of the expansion sleeve in this utility model;

[0024] Figure 5 This is a perspective view of the expansion bolt in this utility model;

[0025] Figure 6 This is the front view of this utility model;

[0026] Figure 7 yes Figure 6 A magnified view of a portion of region A in the middle;

[0027] Figure 8 This is a schematic diagram illustrating the working principle of this utility model.

[0028] Figure label:

[0029] Base 100, fixing plate 110, first vertical connecting plate 111, first connecting ring 120, circular mounting hole 121; basin 200, flip plate 210, second vertical connecting plate 211, second connecting ring 220, non-circular mounting hole 221, sealing plate 222, sealing plate screw hole 223, limiting post 230; expansion sleeve 300, non-circular insertion part 310, transition connection part 320, expansion part 330, expansion seam 331, expansion plate 332, inner support surface 333, outer support surface 334; expansion bolt 400, bolt support surface 410, bolt thread 420, bolt head 430, tightening groove 431; nut 500; corrugated pipe 600. Detailed Implementation

[0030] 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 are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do 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. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, "multiple" means two or more, and "greater than," "less than," "exceeding," etc., are understood to exclude the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0033] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0034] The following is for reference. Figure 1 and Figure 2 This invention describes an adjustable shampoo basin according to an embodiment of the present invention.

[0035] like Figure 1 and Figure 2 As shown, the adjustable shampoo basin according to an embodiment of the present utility model includes a base 100, a basin body 200, an expansion sleeve 300, and expansion bolts 400.

[0036] A fixing plate 110 is provided on the upper side of the base 100, and a first connecting ring 120 is provided on the upper side of the fixing plate 110. The first connecting ring 120 has a circular mounting hole 121. The basin 200 is located above the base 100, and a flip plate 210 is provided on the lower side of the basin 200. A second connecting ring 220 is provided on the lower side of the flip plate 210, and the second connecting ring 220 has a non-circular mounting hole 221. (Refer to...) Figure 3 , Figure 4An expansion sleeve 300 includes a non-circular insertion portion 310 and an expansion portion 330. The direction closer to the non-circular insertion portion 310 is defined as the tail end, and the direction closer to the expansion portion 330 is defined as the head end. The non-circular insertion portion 310 is inserted into a non-circular mounting hole 221, and the expansion portion 330 is inserted into a circular mounting hole 121. The inner sidewall of the expansion portion 330 has an inner support surface 333, and the outer sidewall of the expansion portion 330 has an outer support surface 334. An expansion bolt 400 is inserted into the expansion sleeve 300. The outer sidewall of the expansion bolt 400 has a bolt support surface 410, which can abut against the inner support surface 333, and the outer support surface 334 can abut against the hole wall of the non-circular mounting hole 221.

[0037] For example, such as Figure 1 and Figure 2 As shown, a fixing plate 110 is provided on the upper side of the base 100, and the base 100 is connected to the fixing plate 110 and relatively fixed. A first connecting ring 120 is provided on the upper side of the fixing plate 110, and the first connecting ring 120 has a circular mounting hole 121. The basin 200 is located above the base 100, and a flip plate 210 is provided on the lower side of the basin 200, allowing the basin 200 to flip and move together with the flip plate 210. A second connecting ring 220 is provided on the lower side of the flip plate 210, and the second connecting ring 220 has a non-circular mounting hole 221. (Refer to...) Figure 3 , Figure 4The expansion sleeve 300 includes a non-circular insertion portion 310 at the tail end and an expansion portion 330 at the head end. The non-circular insertion portion 310 is inserted into a non-circular mounting hole 221, and the expansion portion 330 is inserted into a circular mounting hole 121. Essentially, the expansion sleeve 300 connects the first connecting ring 120 and the second connecting ring 220 together. When the non-circular insertion portion 310 is inserted into the non-circular mounting hole 221, the non-circular design prevents slippage between the non-circular insertion portion 310 and the non-circular mounting hole 221. When the expansion portion 330 is inserted into the circular mounting hole 121, the expansion portion 330 can either fit tightly against the circular mounting hole 121 to prevent slippage, or it can have a clearance fit to allow slippage between the expansion portion 330 and the circular mounting hole 121. The inner wall of the expansion portion 330 has an inner support surface 333, and the outer wall of the expansion portion 330 has an outer support surface 334. An expansion bolt 400 is inserted into the expansion sleeve 300. The expansion bolt 400 has a horizontal axis extending in the left-right direction, allowing the basin 200 to rotate back and forth along the horizontal axis to adjust its angle. The outer wall of the expansion bolt 400 has a bolt support surface 410, which abuts against the inner support surface 333, and the outer support surface 334 abuts against the wall of the circular mounting hole 121. That is, when the bolt support surface 410 of the expansion bolt 400 is in close contact with the inner support surface 333 of the expansion sleeve 300, and the outer support surface 334 of the expansion sleeve 300 is in close contact with the wall of the circular mounting hole 121 of the first connecting ring 120, the flip plate 210 can be tightened, effectively fixing the basin 200.

[0038] In practical use, refer to Figure 8 When the angle of the basin 200 needs to be adjusted, the expansion bolt 400 is loosened, so that the bolt support surface 410 of the expansion bolt 400 no longer abuts against the inner support surface 333 of the expansion sleeve 300, and the outer support surface 334 of the expansion sleeve 300 no longer abuts against the wall of the circular mounting hole 121 of the first connecting ring 120. In this way, the expansion part 330 of the expansion sleeve 300 can slide between the circular mounting hole 121 of the first connecting ring 120, so that the basin 200 can be rotated and adjusted along with the flip plate 210.

[0039] After the basin 200 is adjusted to the correct angle, tighten the expansion bolts 400 so that the bolt support surface 410 of the expansion bolts 400 is in close contact with the inner support surface 333 of the expansion sleeve 300, forming sufficient friction. Furthermore, due to the deformation of the expansion sleeve 300, the outer support surface 334 is also in close contact with the circular mounting hole 121 of the first connecting ring 120, forming sufficient friction. In this way, the expansion portion 330 of the expansion sleeve 300 becomes securely fastened to the circular mounting hole 121 of the first connecting ring 120. Simultaneously, since the non-circular insertion portion 310 of the expansion sleeve 300 is already engaged with the non-circular mounting hole 221, the basin 200 is thus fixed in place.

[0040] This allows for easy adjustment of the angle of the basin 200 to suit different needs. Furthermore, once adjusted, the basin 200 can be easily secured, ensuring sufficient stability and reliability during use.

[0041] In some embodiments of this utility model, reference is made to Figure 1 , Figure 2 The adjustable shampoo basin of this invention comprises a first connecting ring 120, a second connecting ring 220, an expansion sleeve 300, and an expansion bolt 400, forming an adjustable connection structure. The adjustable connection structure of the adjustable shampoo basin of this invention can be one or more. For example... Figure 2 In this embodiment, the adjustable connection structure is arranged in two columns on the left and right sides. When there are multiple adjustable connection structures, the horizontal axes of each adjustable connection structure are on the same horizontal line.

[0042] In some embodiments of this utility model, reference is made to Figure 6 , Figure 7 The adjustable connection structures are symmetrically distributed on the left and right sides. The head end of the adjustable connection structure faces the outside of the base 100, and the tail end of the adjustable connection structure faces the inside of the base 100.

[0043] In some embodiments of this utility model, reference is made to Figure 3 A first vertical connecting plate 111 is provided on the upper side of the fixing plate 110, and a first connecting ring 120 is located on the upper side of the first vertical connecting plate 111, so that the connection between the fixing plate 110 and the first connecting ring 120 is sufficiently stable. A second vertical connecting plate 211 is provided on the lower side of the flip plate 210, and a second connecting ring 220 is located on the lower side of the second vertical connecting plate 211, so that the connection between the flip plate 210 and the second connecting ring 220 is sufficiently stable.

[0044] In some embodiments of this utility model, reference is made to Figure 2 , Figure 3 The fixing plate 110, the first vertical connecting plate 111, and the first connecting ring 120 are integrally formed of metal. The flip plate 210, the second vertical connecting plate 211, and the second connecting ring 220 are also integrally formed of metal.

[0045] In some embodiments of this utility model, reference is made to Figure 2 , Figure 6The front projection positions of the first vertical connecting plate 111 and the second vertical connecting plate 211 are staggered. This ensures that even if the areas of the first vertical connecting plate 111 and the second vertical connecting plate 211 are made larger, they will not collide when the flip plate 210 rotates. Making the first vertical connecting plate 111 and the second vertical connecting plate 211 larger also ensures that the structure of the fixing plate 110, the first vertical connecting plate 111 and the first connecting ring 120, as well as the structure of the flip plate 210, the second vertical connecting plate 211 and the second connecting ring 220, are more robust and reliable.

[0046] In some embodiments of this utility model, an expansion slot 331 is provided on the expansion part 330, which divides the expansion part 330 into several expansion pieces 332, thus making the expansion pieces 332 easier to deform. When the expansion bolt 400 is tightened, the bolt support surface 410 of the expansion bolt 400 can abut against the inner support surface 333 of the expansion piece 332, causing the expansion piece 332 to be lifted up, and thus the outer support surface 334 of the expansion piece 332 can also be tightly pressed against the wall of the circular mounting hole 121 of the first connecting ring 120 to form sufficient friction.

[0047] In some embodiments of this utility model, the expansion joint 331 can be an elongated hole structure or an elongated joint structure with an open end.

[0048] In some embodiments of this invention, a transition connection portion 320 is provided between the non-circular insertion portion 310 and the expansion portion 330, and the transition connection portion 320 is circular. Since the expansion piece 332 of the expansion portion 330 corresponds to the circular mounting hole 121, the shape of the expansion piece 332 is also a tile-shaped structure that matches the circular mounting hole 121. The design of the transition connection portion 320 makes the tile-shaped expansion piece 332 connection more stable, less prone to local tearing that could damage the expansion portion 330, and makes the expansion portion 330 and even the adjustable connection structure of this invention more durable.

[0049] In some embodiments of this utility model, reference is made to Figure 5 The expansion bolt 400 has a bolt head 430 at its head end, and a tightening groove 431 is provided on the bolt head 430. The tightening groove 431 can be used with tools such as screwdrivers and wrenches to easily tighten or loosen the expansion bolt 400. The tightening groove 431 can be a cross groove, a slotted groove, a hexagonal groove, or other shapes.

[0050] In some embodiments of this utility model, reference is made to Figure 6 , Figure 7The bolt support surface 410 is a conical surface, and the diameter of the head end of the bolt support surface 410 is larger than the diameter of the tail end. When the expansion bolt 400 is tightened, the conical design of the bolt support surface 410 allows it to gradually press against the inner support surface 333 of the expansion sleeve 300 during the tightening process, generating a gradually increasing frictional force. Furthermore, the gradual deformation of the expansion sleeve 300 increases the frictional force between the outer support surface 334 and the wall of the circular mounting hole 121 of the first connecting ring 120. This ensures a better fastening effect for the basin 200.

[0051] In some embodiments of this utility model, the inner support surface 333 is a conical surface, and the diameter of the tail end of the inner support surface 333 is larger than the diameter of the head end of the inner support surface 333. When the expansion bolt 400 is tightened, the conical design of the inner support surface 333 allows the bolt support surface 410 to gradually adhere to the inner support surface 333 of the expansion sleeve 300 during the tightening process, forming a gradually increasing frictional force. Furthermore, due to the gradual deformation of the expansion sleeve 300, the frictional force between the outer support surface 334 and the wall of the circular mounting hole 121 of the first connecting ring 120 increases. This ensures a better fastening effect for the basin 200.

[0052] In some embodiments of this utility model, the bolt support surface 410 and the inner support surface 333 can adopt a convex arc surface structure. When the expansion bolt 400 is tightened, the convex arc surface structure of the inner support surface 333 can abut against the convex arc surface structure of the bolt support surface 410, ensuring that the expansion sleeve 300 is lifted up and forms a sufficiently large frictional force with the wall of the circular mounting hole 121 of the first connecting ring 120.

[0053] In some embodiments of this utility model, the tail end of the first connecting ring 120 aligns with the head end of the second connecting ring 220. A sealing plate 222 is provided at the tail end of the second connecting ring 220, and a sealing plate screw hole 223 is provided on the sealing plate 222. The tail end of the expansion bolt 400 has a bolt thread 420, which is threadedly connected to the sealing plate screw hole 223. This facilitates the rotation, adjustment, and expansion / contraction of the expansion bolt 400.

[0054] In some embodiments of this utility model, a nut 500 is fitted onto the expansion bolt 400, and the nut 500 is threadedly connected to the bolt thread 420. The nut 500 is located on the second connecting ring 220 away from the expansion sleeve 300, and the end face of the nut 500 near the head end engages with the side wall of the sealing plate 222 near the tail end. Thus, after the bolt thread 420 is adjusted to its expansion / contraction position, the nut 500 is tightened to secure the bolt thread 420, preventing the basin body 200 from loosening due to the nut 500 loosening. This ensures that the basin body 200 is sufficiently stable and reliable during operation.

[0055] In some embodiments of this utility model, reference is made to Figure 1 A corrugated pipe 600 is provided between the base 100 and the basin 200, and the fixing plate 110 and the flip plate 210 are both located inside the corrugated pipe 600. The corrugated pipe 600 can protect the adjustable connection structure such as the first connecting ring 120, the second connecting ring 220, the expansion sleeve 300, and the expansion bolt 400, and prevent the adjustable connection structure from getting wet and affecting its use.

[0056] In some embodiments of this utility model, a limiting post 230 is provided on the lower side of the flip plate 210. The limiting post 230 is threadedly connected to the flip plate 210, and the lower end of the limiting post 230 can abut against the upper side of the fixing plate 110. The threaded connection design of the limiting post 230 allows the length of the portion of the limiting post 230 extending out of the flip plate 210 to be adjusted.

[0057] The limiting post 230 can control the rotation angle of the flip plate 210. This prevents the basin 200 from rotating even if it becomes loose during operation due to loosening of the expansion bolt 400 or other reasons, thus avoiding potential danger. Furthermore, the limiting post 230 can also serve as an auxiliary support structure for the basin 200 after its angle has been adjusted, making its use safer and more reliable.

[0058] The shampooing device according to a second aspect embodiment of the present invention includes an adjustable shampoo basin according to the first aspect embodiment of the present invention. The shampooing device of the above embodiment is applicable to industries such as medical, massage, and hairdressing.

[0059] The shampooing device according to the present utility model improves the flexibility of the shampoo basin during use by adopting the above-mentioned adjustable shampoo basin, facilitates the convenient design of the shampoo basin, and can improve the comfort of using the shampoo basin and enhance the user experience.

[0060] Other components and operations of the shampoo basin according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0061] The following is for reference. Figure 1 and Figure 2 An adjustable shampoo basin according to an embodiment of the present invention is described in detail below with reference to a specific example. It is to be understood that the following description is merely illustrative and not intended to limit the scope of the invention.

[0062] like Figure 1 and Figure 2 As shown, the adjustable shampoo basin of this utility model embodiment includes a base 100, a basin body 200, two expansion sleeves 300, two expansion bolts 400, two nuts 500 and a corrugated pipe 600.

[0063] A fixing plate 110 is installed on the base 100. A first vertical connecting plate 111 and a first connecting ring 120 are provided on the left and right sides of the fixing plate 110. The first connecting ring 120 is provided with a circular mounting hole 121.

[0064] A flip plate 210 is installed on the basin body 200. A second vertical connecting plate 211 and a second connecting ring 220 are provided on the left and right sides of the flip plate 210. The second connecting ring 220 is provided with a non-circular mounting hole 221, a sealing plate 222, and a sealing plate screw hole 223. The flip plate 210 is also provided with a limit post 230.

[0065] The expansion sleeve 300 is inserted into the first connecting ring 120 and the second connecting ring 220. The expansion sleeve 300 includes a non-circular insertion part 310, a transition connecting part 320, and an expansion part 330. The expansion part 330 is provided with an expansion slot 331, an expansion plate 332, an inner support surface 333, and an outer support surface 334.

[0066] An expansion bolt 400 is inserted into an expansion sleeve 300. The expansion bolt 400 is provided with a bolt support surface 410, a bolt thread 420, a bolt head 430, and a tightening groove 431. A nut 500 is threadedly connected to the expansion bolt 400.

[0067] The corrugated pipe 600 is mounted on the fixed plate 110 and the flip plate 210. The corrugated pipe 600 is located between the base 100 and the basin 200.

[0068] In some embodiments of this utility model, the expansion bolt 400 can be an M8×80mm expansion bolt, which is sufficient to fix a commonly used standard shampoo basin (basin body 200 weighs 30kg~50kg).

[0069] According to the adjustable shampoo basin of this utility model embodiment, by setting it up in this way, at least the following effects can be achieved: when it is necessary to adjust the angle of the basin 200, the expansion bolt 400 is loosened so that the angle of the basin 200 can be easily adjusted to adapt to different needs; after the angle of the basin 200 is adjusted, the expansion bolt 400 is tightened so that the basin 200 can be easily fixed and the basin 200 can be ensured to be stable and reliable enough during use.

[0070] In the description of this specification, references to terms such as "some embodiments" or "as one might imagine" 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.

[0071] 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. An adjustable shampoo basin, characterized in that, include: A base (100) is provided with a fixing plate (110) on its upper side. A first connecting ring (120) is provided on the upper side of the fixing plate (110). The first connecting ring (120) has a circular mounting hole (121). A basin (200) is located above the base (100). A flip plate (210) is provided on the lower side of the basin (200). A second connecting ring (220) is provided on the lower side of the flip plate (210). The second connecting ring (220) has a non-circular mounting hole (221). An expansion sleeve (300) includes a non-circular insertion part (310) and an expansion part (330). The direction of the expansion sleeve (300) closer to the non-circular insertion part (310) is defined as the tail end, and the direction of the expansion part (330) closer to the expansion part (330) is defined as the head end. The non-circular insertion part (310) is inserted into the non-circular mounting hole (221), and the expansion part (330) is inserted into the circular mounting hole (121). The inner sidewall of the expansion part (330) has an inner support surface (333), and the outer sidewall of the expansion part (330) has an outer support surface (334). An expansion bolt (400) is inserted into the expansion sleeve (300). The outer wall of the expansion bolt (400) has a bolt support surface (410). The bolt support surface (410) can abut against the inner support surface (333), and the outer support surface (334) can abut against the wall of the non-circular mounting hole (221).

2. The adjustable shampoo basin according to claim 1, characterized in that, The upper side of the fixed plate (110) is provided with a first vertical connecting plate (111), and the first connecting ring (120) is located on the upper side of the first vertical connecting plate (111); the lower side of the flip plate (210) is provided with a second vertical connecting plate (211), and the second connecting ring (220) is located on the lower side of the second vertical connecting plate (211).

3. The adjustable shampoo basin according to claim 2, characterized in that, The first vertical connecting plate (111) is located at the upper left or upper right of the second vertical connecting plate (211).

4. The adjustable shampoo basin according to claim 1, characterized in that, The expansion section (330) has an expansion slit (331) which divides the expansion section (330) into several expansion pieces (332).

5. The adjustable shampoo basin according to claim 4, characterized in that, A transition connection (320) is provided between the non-circular insertion part (310) and the expansion part (330), and the transition connection part (320) is circular.

6. The adjustable shampoo basin according to claim 1 or 4, characterized in that, The bolt support surface (410) is a conical surface, and the diameter of the head end of the bolt support surface (410) is greater than the diameter of the tail end of the bolt support surface (410).

7. The adjustable shampoo basin according to claim 1, characterized in that, The tail end of the first connecting ring (120) is aligned with the head end of the second connecting ring (220). The tail end of the second connecting ring (220) is provided with a sealing plate (222), and the sealing plate (222) is provided with a sealing plate screw hole (223). The tail end of the expansion bolt (400) is provided with a bolt thread (420), and the bolt thread (420) is threadedly connected to the sealing plate screw hole (223).

8. The adjustable shampoo basin according to claim 7, characterized in that, The expansion bolt (400) is fitted with a nut (500), which is threadedly connected to the bolt thread (420). The nut (500) is located in the direction away from the expansion sleeve (300) from the second connecting ring (220). The end face of the nut (500) near the head end is locked against the side wall of the sealing plate (222) near the tail end.

9. The adjustable shampoo basin according to claim 1, characterized in that, A corrugated pipe (600) is provided between the base (100) and the basin (200), and the fixing plate (110) and the flip plate (210) are both located inside the corrugated pipe (600).

10. The adjustable shampoo basin according to claim 1, characterized in that, A limiting post (230) is provided on the lower side of the flip plate (210). The limiting post (230) is threadedly connected to the flip plate (210). The lower end of the limiting post (230) can press against the upper side of the fixing plate (110).

Images