Shifter and pedestal pan using same

Abstract

The shifter comprises a first pipe fitting and a second pipe fitting, one of the first pipe fitting and the second pipe fitting can be inserted into the other one of the first pipe fitting and the second pipe fitting so that the first pipe fitting and the second pipe fitting can be communicated, a clamping strip is arranged on the first pipe fitting, and a plurality of clamping grooves which are sequentially distributed in the inserting direction of the first pipe fitting and the second pipe fitting are formed in the clamping strip; the clamping ring is fixedly arranged on the second pipe fitting in a sleeving manner; a first clamping head is arranged on the lock catch, and the lock catch is mounted on the clamping ring and can move between a first position and a second position relative to the clamping ring; through the cooperation of the clamping strip and the lock catch, the relative position between the first pipe fitting and the second pipe fitting can be rapidly locked, the fine adjustment effect on the first pipe fitting and the second pipe fitting is achieved, and the fine adjustment device is convenient to use and install and suitable for being used by different products.

Description

Technical Field

[0001] This invention relates to the field of toilet technology, and in particular to a shifter and a toilet using the same. Background Technology

[0002] Most toilet offset systems on the market have a fixed drain hole distance. When the drain hole distance of the floor is not compatible with the toilet size due to construction reasons, either the offset system or the toilet size needs to be replaced, or the drain pipe needs to be re-laid, which wastes manpower and resources and prolongs the construction period. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the aforementioned technical problems in the related art. To this end, the present invention proposes a shifter.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows:

[0005] The present invention also proposes a toilet with the above-mentioned displacement device.

[0006] A shifter according to a first aspect of the present invention includes:

[0007] A first pipe fitting and a second pipe fitting, one of which can be inserted into the other to make the two connected, the first pipe fitting is provided with a retaining strip, and the retaining strip is provided with a plurality of retaining grooves arranged sequentially along the insertion direction of the first pipe fitting and the second pipe fitting.

[0008] A retaining ring, which is sleeved and fixed on the second pipe fitting;

[0009] A latch, wherein the latch is provided with a first locking head, the latch is mounted on the retaining ring and is movable relative to the retaining ring between a first position and a second position;

[0010] When the latch moves to the first position, the first locking head engages with at least one of the slots to restrict the relative movement of the first pipe fitting and the second pipe fitting.

[0011] When the latch moves to the second position, the first locking head disengages from the slot so that the first pipe and the second pipe can move relative to each other.

[0012] The shifter according to the embodiments of the present invention has at least the following beneficial effects: by utilizing the cooperation of the locking strip and the latch, the relative position between the first pipe and the second pipe can be quickly locked, thereby achieving the effect of fine adjustment of the first pipe and the second pipe. It is convenient to use and install, and is suitable for use in different products.

[0013] According to some embodiments of the present invention, the latch is further provided with a second elastic locking head, which is positioned opposite to the locking strip. When the first tube and the second tube move relative to each other in the insertion direction, the second locking head can slide into or out of the locking groove at the current relative position. And when the second locking head slides into the locking groove, the first locking head can move from the second position to the first position.

[0014] According to some embodiments of the present invention, the retaining ring or the second pipe fitting is provided with a sliding groove, the side wall of the sliding groove is provided with a first positioning groove and a second positioning groove, the latch is slidably engaged in the sliding groove, and the side wall of the latch is provided with a third locking head. When the latch slides to the first position, the third locking head is engaged in the first positioning groove; when the latch slides to the second position, the third locking head is engaged in the second positioning groove.

[0015] According to some embodiments of the present invention, the retaining ring includes a first half-ring and a second half-ring, the two ends of the first half-ring and the two ends of the second half-ring are paired and fastened to each other, and a limiting structure is provided between the retaining ring and the second pipe fitting to restrict the axial movement of the retaining ring relative to the second pipe fitting.

[0016] According to some embodiments of the present invention, the outer wall of the second pipe fitting is provided with first locking protrusions on both sides, the two ends of the first half ring are provided with first connectors, and the two sides of the first connectors are respectively provided with first locking positions and second locking positions; the two ends of the second half ring are provided with second connectors, and the side of the second connector that is relatively close to the center of the second half ring is provided with a second locking protrusion.

[0017] The first half-ring can be sleeved and abutted on the second pipe fitting along the first direction, the first snap-fit ​​is engaged with the first snap-fit ​​position, the second half-ring can be sleeved and abutted on the second pipe fitting along the second direction, and the second snap-fit ​​is engaged with the second snap-fit ​​position;

[0018] Wherein, the first direction and the second direction are opposite directions to each other in the same radial direction of the second pipe fitting.

[0019] According to some embodiments of the present invention, the two sides of the first snap protrusion are a first surface and a second surface, the second surface being closer to the second half-ring than the first surface, the first surface extending obliquely outward from the outer wall of the first half-ring toward the side where the second surface is located, the second surface being a straight surface perpendicular to the outer wall of the second half-ring, the first snap-fit ​​position being recessed from the side of the first connector toward the outer wall of the second pipe, the first snap-fit ​​position having a third surface, the third surface being parallel to the second surface and the two abutting against each other.

[0020] According to some embodiments of the present invention, the second snap-fit ​​position is recessed from the side of the first connector away from the outer wall of the second pipe fitting. After the second snap-fit ​​protrusion is engaged with the second snap-fit ​​position, the second connector presses the first connector radially downward along the second pipe fitting so that the first connector abuts against the outer wall of the second pipe fitting.

[0021] According to some embodiments of the present invention, the outer wall of the second pipe fitting is provided with two radially protruding first protrusions, the first protrusions extending circumferentially along the outer wall of the second pipe fitting, the two first protrusions being spaced apart, the retaining ring having second protrusions on both sides in the axial direction, the two first protrusions being located between the two second protrusions, the first protrusions and the second protrusions being paired and abutting against each other, the first protrusions and the second protrusions constituting the limiting structure.

[0022] According to some embodiments of the present invention, a first limiting groove is provided on the second protruding edge, and a fifth locking protrusion is provided on one of the first protruding edges, the fifth locking protrusion being slidably engaged in the first limiting groove; a second limiting groove is provided on the other first protruding edge, and a sixth locking protrusion is provided on the second protruding edge, the sixth locking protrusion being engaged in the second limiting groove.

[0023] A toilet according to a second aspect of the present invention includes a shifter.

[0024] The toilet according to embodiments of the present invention has at least the following advantages: convenient adjustment and fixation of the length of the displacement device, and quick connection of the toilet and the sewage pipe.

[0025] Additional aspects and advantages of the 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

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0027] Figure 1 This is a schematic diagram of the shifter structure;

[0028] Figure 2 yes Figure 1 A structural decomposition diagram;

[0029] Figure 3 yes Figure 1 A magnified view of a portion of the image;

[0030] Figure 4 This is a schematic diagram of the latch structure;

[0031] Figure 5 yes Figure 1 A sectional view;

[0032] Figure 6 yes Figure 5 Another usage status diagram;

[0033] Figure 7 This is an exploded view of the clasp structure;

[0034] Figure 8 yes Figure 5 A magnified view of a portion of the image;

[0035] Figure 9 This is a schematic diagram of the second half-ring;

[0036] Figure 10 This is a structural schematic diagram of the second pipe fitting;

[0037] Figure 11 yes Figure 10 Another perspective illustration.

[0038] Reference numerals: First fitting 110; Second fitting 120; First locking protrusion 121; First surface 122; Second surface 123; First protruding edge 124; Second limiting groove 125; Fifth locking protrusion 126; Locking strip 200; Locking groove 210; Stop bar 211; Locking ring 300; Sliding groove 310; First positioning groove 311; Second positioning groove 312; First half ring 320; Second half ring 330; Second protruding edge 331; First limiting groove 332; Sixth locking protrusion 333; First connector 340; First locking position 341; Second locking position 342; Third surface 343; Second connector 350; Second locking protrusion 351; Lock 400; First locking head 410; Second locking head 420; Third locking head 430. Detailed Implementation

[0039] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0040] This invention relates to a displacement device, comprising a first fitting 110, a second fitting 120, a retaining ring 300, and a locking buckle 400. It also relates to a toilet, wherein the displacement device is used to connect the toilet's drain outlet to a drain pipe.

[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the first pipe fitting 110 and the second pipe fitting 120 can be L-shaped pipe structures, and their radial cross-sections can be circular or elliptical, etc. One of the first pipe fitting 110 and the second pipe fitting 120 can be inserted into the other; that is, the first pipe fitting 110 can be inserted into the second pipe fitting 120, or the second pipe fitting 120 can be inserted into the first pipe fitting 110. After the first pipe fitting 110 and the second pipe fitting 120 are inserted into each other, they are interconnected. A sealing ring or similar device can be provided at the insertion point to improve sealing. After insertion, the first pipe fitting 110 and the second pipe fitting 120 can move relative to each other along the insertion direction, thereby changing the relative distance between the two ends of the first pipe fitting 110 and the second pipe fitting 120. The first pipe fitting 110 is provided with a retaining strip 200, and the retaining strip 200 is provided with several retaining grooves 210. The retaining grooves 210 are arranged sequentially along the insertion direction between the first pipe fitting 110 and the second pipe fitting 120. Corresponding graduations are set on the first pipe fitting 110 according to the position of each retaining groove 210. A retaining ring 300 is sleeved and fixed on the second pipe fitting 120. A locking buckle 400 is slidably mounted on the retaining ring 300, and the locking buckle 400 slides relative to the retaining ring 300 between a first position and a second position. The locking buckle 400 is positioned opposite the retaining strip 200, and the locking buckle 400 is provided with a first retaining head 410. The first retaining head 410 slides into or out of the retaining groove 210 as the locking buckle 400 moves. In this embodiment, the locking buckle 400 slides up and down relative to the retaining ring 300. When the locking buckle 400 slides downward relative to the retaining ring 300, it moves towards the first position; when the locking buckle 400 slides upward relative to the retaining ring 300, it moves towards the second position. Specifically, as shown... Figure 6 As shown, when the latch 400 moves downward relative to the retaining ring 300 to the first position, the first locking head 410 engages with at least one corresponding slot 210, thereby fixing the locking strip 200 relative to the retaining ring 300, that is, fixing the first pipe fitting 110 and the second pipe fitting 120 relative to each other in the insertion direction. When it is necessary to adjust the relative position of the first pipe fitting 110 and the second pipe fitting 120, such as... Figure 5 As shown, when the latch 400 is moved upward to the second position, the first locking head 410 disengages from the slot 210, releasing the restriction on the locking strip 200, thereby allowing adjustment of the relative position of the first pipe fitting 110 and the second pipe fitting 120. By utilizing the cooperation of the locking strip 200 and the latch 400, the relative position between the first pipe fitting 110 and the second pipe fitting 120 can be quickly locked. Furthermore, based on the distance between two adjacent slots 210, a fine-tuning effect can be achieved for the first pipe fitting 110 and the second pipe fitting 120. This design is convenient to use and install, and adaptable to the use of different products.

[0042] In one embodiment, such as Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the latch 400 is also provided with a second locking head 420, which is elastic. The first locking head 410 and the second locking head 420 are aligned vertically on the latch 400 along the moving direction of the latch 400. The second locking head 420 may be elastic itself, capable of elastic deformation after being compressed; or it may elastically swing relative to the latch 400 after being compressed by an external force. A stop bar 211 is provided between two adjacent slots 210 for separation. With the second locking head 420 and the stop bar 200 positioned opposite each other, when the latch 400 is moved to the second position, and the first tube 110 and the second tube 120 move relative to each other along the insertion direction, the second locking head 420 undergoes elastic deformation under force and elastically swings, sliding out of the current slot 210 and abutting against the outside of the adjacent stop bar 211, before sliding into the next adjacent slot 210. By utilizing the cooperation of the second locking head 420 and the slot 210, the relative positions of the first tube 110 and the second tube 120 are adjusted to improve the feel. A "click" sound is emitted when the second locking head 420 slides into the slot 210, indicating to the user that the second locking head 420 has fallen into the next slot 210. Furthermore, when the second locking head 420 slides out of the current slot 210, it abuts against the outside of the stop bar 211. At this time, the first locking head 410 is misaligned with the slot 210. If the latch 400 is moved to the first position at this point, the first locking head 410 will abut against the stop bar 211 and will not be able to enter the slot 210. When the second locking head 420 slides back into the slot 210, the first locking head 410 will be aligned with the slot 210. At this time, the first locking head 410 can move from the second position to the first position, thereby locking the relative positions of the first pipe fitting 110 and the second pipe fitting 120, thus ensuring that the first buckle is locked in the corresponding slot 210.

[0043] In one embodiment, the retaining ring 300 or the second tube fitting 120 is provided with a groove 310. For example... Figure 4 , Figure 5 and Figure 10 As shown, in this embodiment, a sliding groove 310 is disposed on the second pipe fitting 120, and the sliding groove 310 extends circumferentially along the second pipe fitting 120. A first positioning groove 311 and a second positioning groove 312 are provided on the side wall of the sliding groove 310. A latch 400 slides in the sliding groove 310, and a third locking head 430 is provided on the side wall of the latch 400. When the latch 400 slides to the first position, the third locking head 430 engages in the first positioning groove 311, thereby positioning the latch 400 in the first position. When the latch 400 slides to the second position, the third locking head 430 engages in the second positioning groove 312, thereby positioning the latch 400 in the second position.

[0044] In one embodiment, such as Figure 1 , Figure 2 , Figure 5 , Figure 7, Figure 8 , Figure 9 and Figure 10 As shown, the retaining ring 300 includes a first half-ring 320 and a second half-ring 330, both of which are C-shaped. The two ends of the first half-ring 320 and the two ends of the second half-ring 330 are paired and interlocked, meaning one end of the first half-ring 320 is interlocked with one end of the second half-ring 330, and the other end of the first half-ring 320 is interlocked with the other end of the second half-ring 330. A locking buckle 400 can be provided on either the first half-ring 320 or the second half-ring 330; alternatively, a locking buckle 400 can be provided on both the first and second half-rings 320 and 330. In this case, two corresponding retaining strips 200 are provided on the first pipe fitting 110, with one locking buckle 400 cooperating with one retaining strip 200 to achieve a locking function. A limiting structure is also provided between the retaining ring 300 and the second pipe fitting 120, restricting the axial movement of the retaining ring 300 relative to the second pipe fitting 120. This allows the retaining ring 300 to be installed onto the second pipe fitting 120.

[0045] Specifically, the outer wall of the second pipe fitting 120 is provided with first locking protrusions 121 on both sides. As shown in the figure, the two first locking protrusions 121 are symmetrically arranged on the upper and lower sides of the second pipe fitting 120. The two ends of the first semi-ring 320 are provided with first connectors 340, and the two sides of the first connectors 340 are respectively provided with first locking positions 341 and second locking positions 342. The two ends of the second semi-ring 330 are provided with second connectors 350, and the side of the second connector 350 closest to the center of the second semi-ring 330 is provided with a second locking protrusion 351. The first semi-ring 320 and the second semi-ring 330 have a first direction and a second direction relative to the installation direction of the second pipe fitting 120. The first direction and the second direction are opposite directions along the same radial direction of the second pipe fitting 120; as shown in the figure, the first direction is to the right, and the second direction is to the left. The first semi-ring 320 can be fitted from left to right along the first direction and abut against the left side of the second pipe fitting 120, with the first locking protrusions 121 engaging with the first locking positions 341. The second half-ring 330 can be sleeved from right to left along the second direction and abut against the second pipe fitting 120, and the second locking protrusion 351 is locked onto the second locking position 342. By utilizing the locking engagement of the first locking protrusion 121 and the first locking position 341, and the locking engagement of the second locking protrusion 351 and the second locking position 342, the first connector 340 is restricted from disengaging from the second pipe fitting 120 to the left, and the second connector 350 is restricted from disengaging from the second pipe fitting 120 to the right. In this way, the first half-ring 320 and the second half-ring 330 are mutually limited and fixed on the second pipe fitting 120, and the resulting retaining ring 300 is restricted from rotating relative to the second pipe fitting 120.

[0046] Furthermore, in the direction shown in the diagram, the first semi-ring 320 and the second semi-ring 330 are distributed on the second pipe fitting 120. The left and right sides of the first latching protrusion 121 are the first surface 122 and the second surface 123, respectively, with the second surface 123 being closer to the second semi-ring 330 than the first surface 122. The first surface 122 extends outward from the outer wall of the first semi-ring 320 toward the side where the second surface 123 is located. That is, in the diagram, the first latching protrusion 121 located on the upper side of the second pipe fitting 120 has its first surface 122 extending obliquely from the lower left side to the upper right side. The first surface 122 can be an oblique plane or an arc surface. The second surface 123 is a straight surface perpendicular to the outer wall of the second semi-ring 330. The first snap-fit ​​position 341 is recessed from the side of the first connector 340 facing the outer wall of the second pipe fitting 120. In the illustrated direction, the first snap-fit ​​position 341 corresponding to the first connector 340 at the upper end of the first semi-ring 320 is recessed upward from the lower side of the first connector 340, and the first snap-fit ​​position 341 corresponding to the first connector 340 at the lower end of the first semi-ring 320 is recessed downward from the upper side of the first connector 340. The first snap-fit ​​position 341 has a third surface 343, which is also a straight surface. The third surface 343 is perpendicular to the outer wall of the second pipe fitting 120 and parallel to the second surface 123. During installation, the first half-ring 320 is inserted into the second pipe fitting 120 from left to right. The first connector 340 first abuts against the first surface 122, and then undergoes elastic deformation along the inclined direction of the first surface 122. After the first connector 340 passes over the first surface 122, the first locking protrusion 121 is engaged in the first locking position 341, and the first surface 122 and the second surface 123 abut against each other.

[0047] The second locking position 342 is recessed from the side of the first connector 340 away from the outer wall of the second pipe fitting 120. Specifically, in the direction shown in the figure, the second locking position 342 corresponding to the first connector 340 at the upper end of the first half-ring 320 is recessed downwards from the upper side of the first connector 340, and the second locking position 342 corresponding to the first connector 340 at the lower end of the first half-ring 320 is recessed upwards from the lower side of the first connector 340. After the second locking protrusion 351 engages with the second locking position 342, the second connector 350 presses the first connector 340 radially downwards along the second pipe fitting 120, causing the first connector 340 to abut against the outer wall of the second pipe fitting 120. That is, the first connector 340 is clamped between the second connector 350 and the outer wall of the second pipe fitting 120, thereby fixing the first half-ring 320 radially in the second pipe fitting 120.

[0048] The aforementioned limiting structure may involve providing a limiting boss on the second pipe fitting 120, thereby restricting the axial movement of the retaining ring 300 relative to the second pipe fitting 120. In one embodiment, as shown... Figure 9 , Figure 10 and Figure 11As shown, the outer wall of the second pipe fitting 120 is provided with two radially protruding first flanges 124. The first flanges 124 extend circumferentially along the outer wall of the second pipe fitting 120. The two first flanges 124 are spaced apart, and the first retaining protrusions 121 can be provided at the interval between the two first flanges 124. The retaining ring 300 is provided with second flanges 331 on both sides in the axial direction, and the second flanges 331 can extend radially out from the side of the retaining ring 300. The two first flanges 124 are located between the two second flanges 331. The first flanges 124 and the second flanges 331 are paired and abut against each other, and the first flanges 124 and the second flanges 331 constitute the above-mentioned limiting structure. By using the cooperation of the first flanges 124 and the second flanges 331, the axial movement of the retaining ring 300 relative to the second pipe fitting 120 is restricted.

[0049] Furthermore, a first limiting groove 332 is provided on the second protrusion 331, extending from the end of the second protrusion 331 along a first direction. One of the first protrusions 124 has a fifth locking protrusion 126, which slides into the first limiting groove 332. The other first protrusion 124 has a second limiting groove 125, and the second protrusion 331 has a sixth locking protrusion 333, which engages with the second limiting groove 125. By utilizing the cooperation of the fifth locking protrusion 126 and the first limiting groove 332, and the cooperation of the sixth locking protrusion 333 and the second limiting groove 125, the end of the second half-ring 330 is prevented from disengaging from the first protrusion 124 along a direction perpendicular to the second direction. Thus, the first connector 340 and the second connector 350 are fastened to the second pipe fitting 120.

[0050] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 invention.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0053] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0054] In the description of this specification, references to terms such as "some specific embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the 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.

[0055] Although embodiments of the 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 invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A shifter, characterized in that, include: A first pipe fitting (110) and a second pipe fitting (120), one of which can be inserted into the other to make them connected, the first pipe fitting (110) is provided with a retaining strip (200), and the retaining strip (200) is provided with a plurality of retaining grooves (210) arranged sequentially along the insertion direction of the first pipe fitting (110) and the second pipe fitting (120). A retaining ring (300) is sleeved and fixed on the second pipe fitting (120); A latch (400) is provided with a first locking head (410), the latch (400) is mounted on the retaining ring (300) and can move relative to the retaining ring (300) between a first position and a second position; When the latch (400) moves to the first position, the first latch (410) engages with at least one of the latch slots (210) to restrict the relative movement of the first fitting (110) and the second fitting (120); When the latch (400) moves to the second position, the first clip (410) disengages from the slot (210) so that the first pipe fitting (110) and the second pipe fitting (120) can move relative to each other.

2. The shifter according to claim 1, characterized in that: The latch (400) is also provided with a second elastic locking head (420), which is positioned opposite to the locking strip (200). When the first tube (110) and the second tube (120) move relative to each other in the insertion direction, the second locking head (420) can slide into or out of the slot (210) at the current relative position. And when the second locking head (420) slides into the slot (210), the first locking head (410) can move from the second position to the first position.

3. The shifter according to claim 1, characterized in that: The retaining ring (300) or the second pipe fitting (120) is provided with a sliding groove (310). The side wall of the sliding groove (310) is provided with a first positioning groove (311) and a second positioning groove (312). The latch (400) slides in the sliding groove (310). The side wall of the latch (400) is provided with a third locking head (430). When the latch (400) slides to the first position, the third locking head (430) is engaged in the first positioning groove (311); when the latch (400) slides to the second position, the third locking head (430) is engaged in the second positioning groove (312).

4. The shifter according to claim 1, characterized in that: The retaining ring (300) includes a first half-ring (320) and a second half-ring (330). The two ends of the first half-ring (320) and the two ends of the second half-ring (330) are paired and fastened to each other. A limiting structure is also provided between the retaining ring (300) and the second pipe fitting (120) to restrict the axial movement of the retaining ring (300) relative to the second pipe fitting (120).

5. The shifter according to claim 4, characterized in that: The second pipe fitting (120) has a first locking protrusion (121) on both sides of its outer wall, and the first half ring (320) has a first connector (340) at both ends. The first connector (340) has a first locking position (341) and a second locking position (342) on both sides respectively. The second half ring (330) has a second connector (350) at both ends, and the second connector (350) has a second locking protrusion (351) on the side of the second connector (350) that is relatively close to the center of the second half ring (330). The first half-ring (320) can be sleeved and abutted on the second pipe fitting (120) along the first direction, the first snap-fit ​​(121) is snapped on the first snap-fit ​​position (341), the second half-ring (330) can be sleeved and abutted on the second pipe fitting (120) along the second direction, and the second snap-fit ​​(351) is snapped on the second snap-fit ​​position (342); Wherein, the first direction and the second direction are opposite directions to each other in the same radial direction of the second pipe fitting (120).

6. The shifter according to claim 5, characterized in that: The first snap-fit ​​protrusion (121) has a first surface (122) and a second surface (123) on its two sides. The second surface (123) is closer to the second half-ring (330) than the first surface (122). The first surface (122) extends outward from the outer wall of the first half-ring (320) towards the side where the second surface (123) is located. The second surface (123) is a straight surface perpendicular to the outer wall of the second half-ring (330). The first snap-fit ​​position (341) is recessed from the side of the first connector (340) facing the outer wall of the second pipe (120). The first snap-fit ​​position (341) has a third surface (343), which is parallel to the second surface (123) and the two abut against each other.

7. The shifter according to claim 6, characterized in that: The second snap-fit ​​position (342) is recessed from the side of the first connector (340) away from the outer wall of the second pipe fitting (120). After the second snap-fit ​​protrusion (351) snaps into the second snap-fit ​​position (342), the second connector (350) presses the first connector (340) radially downward along the second pipe fitting (120) so that the first connector (340) abuts against the outer wall of the second pipe fitting (120).

8. The shifter according to any one of claims 4 to 7, characterized in that: The outer wall of the second pipe fitting (120) is provided with two radially protruding first protrusions (124). The first protrusions (124) extend circumferentially along the outer wall of the second pipe fitting (120). The two first protrusions (124) are spaced apart. The retaining ring (300) is provided with second protrusions (331) on both sides in the axial direction. The two first protrusions (124) are located between the two second protrusions (331). The first protrusions (124) and the second protrusions (331) are paired and abut against each other. The first protrusions (124) and the second protrusions (331) constitute the limiting structure.

9. The shifter according to claim 8, characterized in that: The second protruding edge (331) is provided with a first limiting groove (332), one of the first protruding edges (124) is provided with a fifth locking protrusion (126), the fifth locking protrusion (126) is slidably connected in the first limiting groove (332); the other first protruding edge (124) is provided with a second limiting groove (125), the second protruding edge (331) is provided with a sixth locking protrusion (333), the sixth locking protrusion (333) is engaged in the second limiting groove (125).

10. A toilet seat, characterized in that: Includes the shifter as described in any one of claims 1 to 9.

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