Bouncing assembly of drainer and drainer

Abstract

A bouncing assembly of a drainer comprises an outer sleeve, a fixed sleeve, a rotary sleeve, a first elastic piece and a second elastic piece, the fixed sleeve is fixedly arranged in a sewer pipe, the rotary sleeve is arranged in the fixed sleeve in a sleeved mode, the outer sleeve is arranged on the fixed sleeve in a vertically lifting and sleeving mode, the first elastic piece is compressed between the outer sleeve and the rotary sleeve, and the second elastic piece is compressed between the outer sleeve and the rotary sleeve. The second elastic piece acts between the rotating sleeve and the fixed sleeve to apply downward force to the rotating sleeve, a plurality of first driving teeth which are circumferentially arranged are formed on the rotating sleeve, a plurality of second driving teeth which can be meshed with the first driving teeth are formed on the fixed sleeve, and a plurality of clamping grooves and a plurality of sliding grooves which are circumferentially arranged at intervals are formed in the inner wall of the outer sleeve; the outer sleeve is provided with a plurality of clamping grooves, openings of the clamping grooves face upwards, the sliding grooves extend in the length direction of the outer sleeve, the clamping grooves and the sliding grooves are distributed in a staggered mode, the peripheral face of the fixed sleeve is provided with first limiting parts located in the sliding grooves, a plurality of protruding clamping blocks are formed on the periphery of the rotary sleeve, and the clamping blocks can be clamped in the clamping grooves to limit the outer sleeve from moving upwards. The clamping block is located in the sliding groove so that the outer sleeve can move upwards under the action of the first elastic piece.

Description

Technical Field

[0001] The utility model relates to a bouncing component of a water drainer. Background Art

[0002] A Chinese patent document with publication number CN209353427U discloses a bouncing core of a drain valve, comprising a shell, a gear shaft, a rotor, a spring and a bottom cover arranged in the shell, a tooth groove and a retaining groove arranged on the inner wall of the shell, the gear shaft comprising a main shaft and a gear, the main shaft passes through the central through hole of the shell, a central shaft hole is formed on the gear shaft, the upper part of the main shaft is connected to the valve plate of the drain valve, a central shaft, a rotating tooth and a connecting block are arranged on the rotor, the central shaft of the rotor cooperates with the central shaft hole of the gear shaft, the rotating tooth of the rotor cooperates with the gear of the gear shaft and the tooth groove and retaining groove of the shell, the connecting block contacts with the upper end of the spring, the lower end of the spring cooperates with the bottom cover, a fixing port is formed on the lower part of the shell, a fixing clip is formed on the bottom cover, the fixing clip cooperates with the fixing port to connect the shell with the bottom cover. The valve plate is pressed by fingers, and the gear shaft and the rotor are rotated together. The rotating teeth of the rotor switch between the tooth grooves and the retaining grooves on the inner wall of the shell to open and close the drain valve and the drain hole. The operation is convenient, the structure is stable, and the working reliability is high.

[0003] However, when the drain hole is closed in the above solution, the valve plate may move upward abnormally due to reverse overflow of air or water flow in the drain pipe or interference from other situations, resulting in poor sealing. Utility Model Content

[0004] The utility model aims to provide a bouncing assembly of a drain which has strong sealing performance and can prevent the backflow of sewer airflow or water flow.

[0005] The purpose of the utility model is achieved through the following technologies:

[0006] A bouncing assembly for a water discharger, characterized in that it comprises an outer sleeve, a fixed sleeve, a rotating sleeve, a first elastic member and a second elastic member, wherein the fixed sleeve is fixedly arranged in the water discharge pipe, the rotating sleeve is sleeved in the fixed sleeve, the outer sleeve can be sleeved on the fixed sleeve so as to be lifted up and down, the first elastic member is compressed between the outer sleeve and the rotating sleeve, the second elastic member acts between the rotating sleeve and the fixed sleeve to apply a downward force to the rotating sleeve, the rotating sleeve is formed with a plurality of first driving teeth arranged circumferentially, the fixed sleeve is formed with a plurality of second driving teeth which can mesh with the first driving teeth, and the inner wall of the outer sleeve is formed with a plurality of slots and a plurality of slide slots arranged circumferentially at intervals. The slot opening is upward, the slide groove extends along the length direction of the outer sleeve, the slot and the slide groove are staggered, the outer peripheral surface of the fixed sleeve is provided with a first limiting portion located in the slide groove, and the outer periphery of the rotating sleeve is formed with a plurality of protruding blocks, the blocks can be stuck in the slot to limit the outer sleeve from moving upward, or the blocks are located in the slide groove so that the outer sleeve moves upward under the action of the first elastic member, when the blocks are located in the slot or the slide groove, the first driving teeth and the second driving teeth are staggered, when the outer sleeve is pressed to disengage the blocks from the slot or the slide groove, the first driving teeth are meshed with the second driving teeth to drive the rotating sleeve to rotate, and the rotation of the rotating sleeve can switch the blocks between the slot and the slide groove.

[0007] When in use, the sealing cover of the drain is set on the outer sleeve. When the sealing cover and the outer sleeve are pressed together, the block can switch between the slot and the slide groove. When the block is stuck in the slot, the block cooperates with the slot so that the first elastic member cannot drive the outer sleeve to move upward. At this time, the sealing cover is in the position of sealing the drain pipe. The second elastic member will drive the sealing cover to remain in the position of sealing the drain pipe to prevent the sealing cover from moving upward abnormally under the action of the air pressure of the drain pipe or reverse overflow. Even if it moves upward abnormally, the second elastic member will drive the sealing cover to reset downward, thereby ensuring the reliable sealing of the sealing cover; when the block is in the slide groove, the outer sleeve is no longer restricted by the slot and is driven to move upward by the first elastic member. At this time, the sealing cover is in the position of opening the drain pipe, so that water can pass.

[0008] The fixed sleeve is provided with a pull rod extending into the rotating sleeve. The second elastic member is a coil spring sleeved on the pull rod and compressed between the pull rod and the rotating sleeve. The provision of the pull rod can facilitate the installation of the second elastic member so that the elastic force of the second elastic member can be better applied between the rotating sleeve and the fixed sleeve.

[0009] The pull rod is connected to the fixed sleeve through a connecting piece, and the fixed sleeve is formed with a mounting hole adapted to the connecting piece. A connecting head is formed at the end of the pull rod, and the connecting head has a large diameter section and a small diameter section. The connecting piece is formed with a connecting notch for the connecting head to be inserted, and the connecting head can be inserted into the connecting notch from the side of the connecting piece. The connecting notch has a first section adapted to the small diameter section and a second section adapted to the large diameter section. The first section is smaller than the second section, the small diameter section can be inserted into the first section, and the large diameter section can be inserted into the second section. The first section restricts the large diameter section from moving upward and disengaging from the connecting piece, and the second elastic piece drives the connecting piece to remain in the mounting hole. In this way, during installation, the pull rod can be passed through the lower end of the fixed sleeve and inserted into the connecting notch from the side of the connecting piece. Under the action of the second elastic piece, the connecting piece is pulled upward and embedded in the mounting hole, so that the pull rod and the fixed sleeve can be quickly connected, and the installation and disassembly of the product are convenient.

[0010] The inner wall of the outer sleeve is formed with a plurality of protrusion layers arranged circumferentially, the top surface of the protrusion layer includes a first inclined surface, a second inclined surface and a transition surface, the transition surface is connected between the first inclined surface and the second inclined surface, the transition surface and the first inclined surface form the card groove, two adjacent protrusion layers are spaced apart to form the slide groove, and the second inclined surface is located between the card groove and the slide groove to guide the card block to slide into the slide groove.

[0011] The first inclined surface and the second inclined surface are parallel to each other, and the clamping block has a sliding surface matched with the first inclined surface, so that when the clamping block rises to the second inclined surface, it can be well guided to slide, making the rotation of the rotating sleeve smoother.

[0012] A second limiting portion cooperating with the first limiting portion is formed at the bottom of the slide groove, and the second limiting portion cooperates with the first limiting portion to limit the outer sleeve from being separated from the fixed sleeve.

[0013] The outer sleeve includes a tubular body and a cover body. The outer peripheral surface of the upper end of the tubular body is protruded with a plurality of snap parts. The cover body is formed with a plurality of snap holes that can cooperate with the snap parts. The outer sleeve is divided into the tubular body and the cover body, which can make the installation of the outer sleeve more convenient.

[0014] The top of the outer sleeve is provided with a threaded structure for connecting with a sealing cover of a drainer.

[0015] A threaded structure for connecting to a filter basket is provided at the bottom of the fixed sleeve.

[0016] A clamping portion for connecting to a filter basket is provided at the bottom of the fixed sleeve, and a clearance hole is formed in the filter basket for the fixed sleeve to pass through, and an annular limiting edge is formed on the hole wall of the clearance hole, and a notch is formed on the annular limiting edge. The clamping portion can pass through the notch and cooperate with the annular limiting edge to connect the fixed sleeve to the filter basket.

[0017] A water drainer comprises a drain pipe, a sealing cover and a filter basket arranged in the drain pipe, and is characterized in that it also comprises the bouncing assembly, the bouncing assembly is arranged in the drain pipe, and the fixed sleeve is fixedly connected to the filter basket, and the outer sleeve is fixedly connected to the sealing cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the first embodiment of the utility model (in a contracted state).

[0019] Figure 2 It is a front view of the first embodiment of the utility model (in a contracted state).

[0020] Figure 3 for Figure 2 Sectional view along the AA axis (shrinking state).

[0021] Figure 4 This is an exploded view of the components of the bouncing assembly of the present invention.

[0022] Figure 5 This is a component exploded view of the bouncing assembly of the utility model from another perspective.

[0023] Figure 6 It is a cross-sectional view of the tubular body of the outer sleeve of the utility model.

[0024] Figure 7 It is a structural schematic diagram of the rotating sleeve and the fixed sleeve of the utility model.

[0025] Figure 8 It is a cross-sectional view of the pop-up assembly of the utility model (pop-up state).

[0026] Fig. 9 It is a stereoscopic diagram of the second embodiment of the utility model (in a contracted state).

[0027] Fig.10 It is a front view of the second embodiment of the utility model (in a contracted state).

[0028] Fig.11 for Fig. 9 Cross-sectional view along the BB axis (shrinkage state). DETAILED DESCRIPTION

[0029] Embodiment 1, refer to Figures 1 to 8As shown, a wash basin drain is provided with a bouncing assembly, which is composed of an outer sleeve 1, a fixed sleeve 2, a rotating sleeve 3, a pull rod 4, a first elastic member 5 and a second elastic member 6. The fixed sleeve 2 is fixedly arranged in the drain pipe A, the rotating sleeve 3 is sleeved in the fixed sleeve 2, the outer sleeve 1 can be sleeved on the fixed sleeve 2 to be lifted up and down, the first elastic member 5 is a coil spring compressed between the outer sleeve 1 and the rotating sleeve 3, and is used to drive the outer sleeve 1 to move upward, the pull rod 4 is arranged on the fixed sleeve 2 and extends into the rotating sleeve 3, the lower end of the pull rod 4 is connected to the fixed sleeve 2 through a connecting member 9, the lower end of the fixed sleeve 2 is formed with a mounting hole 25 adapted to the connecting member 9, the hole wall of the mounting hole 25 is formed with an annular blocking edge 251 to prevent the connecting member 9 from excessively moving upward, and the lower end of the pull rod 4 is formed with a connecting head 42, as shown in FIG. Figure 4 or Figure 5 As shown, the connector 42 has a large diameter section and a small diameter section, and the connector 9 is formed with a connecting notch 91 adapted to the connector 42. The connecting notch 91 has a first section and a second section, and the first section is smaller than the second section. The connector 42 can be embedded in the connecting notch 91 from the side, and the first section cooperates with the small diameter section, and the second section cooperates with the large diameter section to restrict the connector in the connecting notch and prevent the pull rod 4 from moving upward and disengaging from the connector 42. Under the pulling force of the second elastic member 6, the connector 9 will be retained in the mounting hole 25 and abut against the annular blocking edge 251. An annular ridge 41 is formed at the upper end of the pull rod 4, and the second elastic member 6 is a coil spring sleeved on the pull rod 4. The upper end of the second elastic member 6 is tightly pressed against the annular ridge 41, and the lower end is tightly pressed against the bottom wall of the rotating sleeve 3, so that the elastic force of the second elastic member 6 can act between the rotating sleeve 3 and the fixed sleeve 2 and exert a downward force on the rotating sleeve 2. An external thread is formed on the top of the outer sleeve 1, which is threadedly connected to the sealing cover 8 of the sewer. The sealing cover 8 is sleeved with a first sealing ring 81 for sealing the sewer.

[0030] The upper end of the rotating sleeve 3 is formed with a plurality of first driving teeth 31 arranged in a circumferential manner, and the upper end of the fixed sleeve 2 is formed with a plurality of second driving teeth 21 that can mesh with the first driving teeth 31. The inner wall of the outer sleeve 1 is formed with a plurality of slots 111 and a plurality of slide grooves 14 arranged in a circumferential manner. The slots 111 are upwardly notched, and the slide grooves 14 extend along the length direction of the outer sleeve 1. The slots 111 and the slide grooves 14 are staggered. The outer peripheral surface of the fixed sleeve 2 is formed with a first limiting portion 22 located in the slide groove 14. The first limiting portion 22 is embedded in the slide groove 14 to be To prevent the outer sleeve 1 from rotating relative to the fixed sleeve 2, a plurality of protruding blocks 32 are formed on the outer periphery of the rotating sleeve 3. The blocks 32 can be stuck in the slot 111 to limit the upward movement of the outer sleeve 1, so that the bouncing assembly will be in a tightened state, and the sealing cover 8 can block the wash basin drain to prevent water from entering the sewer. Alternatively, the blocks 32 are located in the chute 14 so that the outer sleeve 1 moves upward under the action of the first elastic member 5, so that the bouncing assembly will be in a pop-up state, and the sealing cover 8 will be pushed upward out of the drain by the outer sleeve 1, so that water can flow. When the blocks 32 are located in the slot 111 or the chute 14, the first drive teeth 31 and the second drive teeth 21 are staggered. When the outer sleeve 1 is pressed to disengage the blocks 32 from the slot 111 or the chute 14, the first drive teeth 31 and the second drive teeth 21 are meshed to drive the rotating sleeve 3 to rotate. The rotating sleeve 3 can rotate to switch the blocks 32 between the slot 111 and the chute 14.

[0031] The outer sleeve 1 includes a tubular body 11 and a cover body 12. The upper end outer circumferential surface of the tubular body 11 is protruded to form a plurality of buckle parts 112. The cover body 12 is formed with a plurality of buckle holes 121 that can cooperate with the buckle parts 112. The outer sleeve 1 is divided into two parts, the tubular body 11 and the cover body 12, so that the installation of the outer sleeve 1 is more convenient. The inner wall of the outer sleeve 1 is formed with a plurality of protruding layers 13 arranged in a circle. The top of the protruding layer 13 forms a card slot 111. The top surface of the protruding layer 13 includes a first inclined surface 131, a second inclined surface 132 and a transition surface 133. The transition surface 133 is connected between the first inclined surface 131 and the second inclined surface 132. The transition surface 133 and the first inclined surface 131 surround the card slot 111. Two adjacent protruding layers 13 are spaced apart to form a slide groove 14. The second inclined surface 132 is located between the slide groove 111 and the slide groove 14 for The guide block 32 slides into the slide groove 14, the first inclined surface 131 and the second inclined surface 132 are parallel to each other, and the block 32 has a sliding surface 321 adapted to the first inclined surface 131, so that when the block 32 rises to the second inclined surface 132, it can be well guided to slide, so that the rotation of the rotating sleeve 3 is smoother. A second limiting portion 113 that cooperates with the first limiting portion 22 is formed at the bottom of the slide groove 14. The second limiting portion 113 cooperates with the first limiting portion 22 to limit the outer sleeve 1 from being separated from the fixed sleeve 2.

[0032] A clamping portion 24 for connecting to the filter basket 7 is provided at the bottom of the fixed sleeve 2. The filter basket 7 is formed with a clearance hole 71 for the fixed sleeve 2 to pass through. The hole wall of the clearance hole 71 is formed with an annular limiting edge 72. The annular limiting edge 72 is formed with a notch. The clamping portion 24 can pass through the notch and rotate, abutting against the annular limiting edge 72 to connect the fixed sleeve 2 to the filter basket 7. Of course, the fixed sleeve 2 can also be connected to the filter basket 7 through a threaded structure, which is not limited here.

[0033] The working principle of the first embodiment is as follows:

[0034] When in use, the sealing cover 8 of the drain is arranged on the top of the outer sleeve, and the user can press the sealing cover 8. When the sealing cover 8 and the outer sleeve are pressed together, the block 32 can switch between the slot 111 and the slide 14. When the block 32 is stuck in the slot 111, the block 32 cooperates with the slot 111 to make the first elastic member 5 unable to drive the outer sleeve to move upward. At this time, the sealing cover 8 is in the position of sealing the drain pipe A, and the pop-up assembly is in a locked state. The second elastic member 6 will drive the sealing cover 8 to remain in the position of sealing the drain pipe A to prevent the sealing cover 8 from moving abnormally upward under the action of the air pressure or reverse overflow of the drain pipe A. Even if it moves abnormally upward, the second elastic member 6 will drive the sealing cover 8 to reset downward, thereby ensuring the reliable sealing of the sealing cover 8; when the block 32 is in the slide 14, the outer sleeve is no longer restricted by the slot 111 and is driven to move upward by the first elastic member 5. At this time, the sealing cover 8 is in the position of opening the drain pipe A, and the pop-up assembly is in a pop-up state, so that water can pass.

[0035] The installation process of Example 1 is as follows:

[0036] First, fix the filter basket 7 in the sewer pipe A, sleeve the second elastic member 6 on the pull rod 4, and then set the pull rod 4 on the fixed sleeve 2 through the connecting member 9, pass the lower end of the fixed sleeve 2 through the clearance hole 71 of the filter basket 7, and the clamping portion 24 passes through the notch of the annular limiting edge 72, and then rotate the fixed sleeve 2 to make the clamping portion 24 abut against the annular limiting edge 72, and then insert the rotating sleeve 3 into the fixed sleeve 2 from top to bottom, put the first elastic member 5 into the rotating sleeve 3, and finally align the first limiting portion 22 or the block 32 with the slide groove 14, and then sleeve the outer sleeve on the fixed sleeve 2 from top to bottom.

[0037] Example 2, refer to Figures 9 to 11As shown, a kitchen sink drainer is provided with a bouncing assembly in the kitchen sink drainer. The structure of the bouncing assembly is basically the same as that of the first embodiment. The difference between the second embodiment and the first embodiment is that the bouncing assembly of the second embodiment is provided in the kitchen sink, while the bouncing assembly of the first embodiment is provided in the drain pipe, and the sealing cover 8 of the second embodiment is integrally formed with the outer sleeve 1 and provided on the lower end side of the outer sleeve 1, and a pressing portion 23 is provided on the upper end of the filter basket 7, and the filter basket 7 is sleeved on the outer sleeve 2 to prevent kitchen waste from entering the sewer. Pressing the pressing portion 23 can switch the bouncing assembly to a pop-up state or a tightened state. The filter basket 7 can be disassembled by pulling up the pressing portion 23 to clean the kitchen waste in the filter basket 7, which is very convenient. The sealing cover 8 is formed with an annular mounting groove 82, in which a second sealing ring 83 is installed. The second sealing ring 83 can be raised and lowered with the sealing cover 8 to seal or open the sewer. A mounting base 73 is provided between the filter basket 7 and the wall B of the drain outlet of the kitchen sink. The mounting base 73 is as shown in FIG. Fig.11 As shown, it is a tubular structure, and the diameter gradually decreases from top to bottom. The lower end of the mounting base 73 cooperates with the sealing cover 8 to seal the sewer pipe.

[0038] The working principle of the second embodiment is as follows:

[0039] When in use, the user can press the pressing part 23 at the top of the outer sleeve 1. When the outer sleeve 1 descends, the block 32 can switch between the slot 111 and the slide groove 14. When the block 32 is stuck in the slot 111, the block 32 cooperates with the slot 111 to prevent the first elastic member 5 from driving the outer sleeve 1 to move upward. At this time, the sealing cover 8 is in the position of sealing the sewer pipe, and the pop-up assembly is in a locked state. The second elastic member 6 will drive the sealing cover 8 to remain in the position of sealing the sewer pipe to prevent the sealing cover 8 from moving abnormally upward under the action of the sewer pipe air pressure or reverse overflow. Even if it moves upward abnormally, the second elastic member 6 will drive the sealing cover 8 to reset downward, thereby ensuring the reliable sealing of the sealing cover 8; when the block 32 is in the slide groove 14, the outer sleeve 1 is no longer restricted by the slot 111 and is driven to move upward by the first elastic member 5. At this time, the sealing cover 8 is in the position of opening the sewer pipe, and the pop-up assembly is in a pop-up state, so that water can pass.

[0040] The installation process of the second embodiment is as follows:

[0041] First, set the mounting base 73 in the wall B of the drain outlet of the kitchen sink, then fix the filter basket 7 on the mounting base 73, sleeve the second elastic member 6 on the pull rod 4, and then set the pull rod 4 on the fixed sleeve 2 through the connecting member 9, pass the lower end of the fixed sleeve 2 through the clearance hole 71 of the filter basket 7, and the clamping portion 24 through the notch of the annular limiting edge 72, and then rotate the fixed sleeve 2 to make the clamping portion 24 abut against the annular limiting edge 72, and then insert the rotating sleeve 3 into the fixed sleeve 2 from top to bottom, put the first elastic member 5 into the rotating sleeve 3, and finally align the first limiting portion 22 or the block 32 with the slide groove 14, and then sleeve the outer sleeve 1 on the fixed sleeve 2 from top to bottom.

[0042] The above is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of implementation of the present invention. That is, equivalent changes and modifications made according to the scope of the patent application of the present invention and the contents of the specification should still fall within the scope covered by the patent of the present invention.

Claims

1. A bouncing assembly for a water drain, characterized in that: The invention comprises an outer sleeve, a fixed sleeve, a rotating sleeve, a first elastic member and a second elastic member. The fixed sleeve is fixedly arranged in the sewer pipe, the rotating sleeve is sleeved in the fixed sleeve, the outer sleeve can be sleeved on the fixed sleeve to be lifted up and down, the first elastic member is compressed between the outer sleeve and the rotating sleeve, the second elastic member acts between the rotating sleeve and the fixed sleeve to apply a downward force to the rotating sleeve, the rotating sleeve is formed with a plurality of first driving teeth arranged circumferentially, the fixed sleeve is formed with a plurality of second driving teeth which can mesh with the first driving teeth, the inner wall of the outer sleeve is formed with a plurality of slots and a plurality of slide grooves arranged circumferentially at intervals, the slots are upward, and the slide grooves are downward. The groove extends along the length direction of the outer sleeve, the slots and the slide grooves are staggered, the outer peripheral surface of the fixed sleeve is provided with a first limiting portion located in the slide groove, and the outer periphery of the rotating sleeve is formed with a plurality of protruding blocks, the blocks can be stuck in the slots to limit the outer sleeve from moving upward, or the blocks are located in the slide groove so that the outer sleeve moves upward under the action of the first elastic member, when the blocks are located in the slots or the slide grooves, the first driving teeth and the second driving teeth are staggered, when the outer sleeve is pressed to disengage the blocks from the slots or the slide grooves, the first driving teeth engage with the second driving teeth to drive the rotating sleeve to rotate, and the rotation of the rotating sleeve can switch the blocks between the slots and the slide grooves.

2. The bouncing assembly of a water drain according to claim 1, characterized in that: The fixed sleeve is provided with a pull rod extending into the rotating sleeve, and the second elastic member is a coil spring sleeved on the pull rod and compressed between the pull rod and the rotating sleeve.

3. The bouncing assembly of a water drain according to claim 2, characterized in that: The pull rod is connected to the fixed sleeve through a connecting piece, and the fixed sleeve is formed with a mounting hole adapted to the connecting piece. A connecting head is formed at the end of the pull rod, and the connecting head has a large diameter section and a small diameter section. The connecting piece is formed with a connecting notch for the connecting head to be inserted, and the connecting head can be inserted into the connecting notch from the side of the connecting piece. The connecting notch has a first section adapted to the small diameter section and a second section adapted to the large diameter section. The first section is smaller than the second section, the small diameter section can be inserted into the first section, and the large diameter section can be inserted into the second section. The first section limits the large diameter section from moving upward to detach from the connecting piece, and the second elastic member drives the connecting piece to remain in the mounting hole.

4. The bouncing assembly of a water drainer according to claim 1, characterized in that: The inner wall of the outer sleeve is formed with a plurality of protrusion layers arranged circumferentially, the top surface of the protrusion layer includes a first inclined surface, a second inclined surface and a transition surface, the transition surface is connected between the first inclined surface and the second inclined surface, the transition surface and the first inclined surface form the card groove, two adjacent protrusion layers are spaced apart to form the slide groove, and the second inclined surface is located between the card groove and the slide groove to guide the card block to slide into the slide groove.

5. The bouncing assembly of a water drainer according to claim 4, characterized in that: The first inclined surface and the second inclined surface are parallel to each other, and the clamping block has a sliding surface matched with the first inclined surface.

6. The bouncing assembly of a water drainer according to claim 1, characterized in that: A second limiting portion cooperating with the first limiting portion is formed at the bottom of the slide groove.

7. The bouncing assembly of a water drainer according to claim 1, characterized in that: The outer sleeve comprises a tubular body and a cover body. The outer peripheral surface of the upper end of the tubular body is protruded to form a plurality of buckle parts, and the cover body is formed with a plurality of buckle holes that can be matched with the buckle parts.

8. The bouncing assembly of a water drain according to any one of claims 1 to 7, characterized in that: The top of the outer sleeve is provided with a threaded structure for connecting with a sealing cover of a drainer.

9. The bouncing assembly of a water drainer according to any one of claims 1 to 7, characterized in that: A threaded structure for connecting to a filter basket is provided at the bottom of the fixed sleeve.

10. The bouncing assembly of a water drain according to any one of claims 1 to 7, characterized in that: A clamping portion for connecting to a filter basket is provided at the bottom of the fixed sleeve, and a clearance hole is formed in the filter basket for the fixed sleeve to pass through, and an annular limiting edge is formed on the hole wall of the clearance hole, and a notch is formed on the annular limiting edge. The clamping portion can pass through the notch and cooperate with the annular limiting edge to connect the fixed sleeve to the filter basket.

11. A water drainer, comprising a drain pipe, a sealing cover and a filter basket arranged in the drain pipe, characterized in that: It also includes the bouncing assembly as described in any one of claims 1 to 10, the bouncing assembly is arranged in the sewer pipe, and the fixed sleeve is fixedly connected to the filter basket, and the outer sleeve is fixedly connected to the sealing cover.

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