Springing type sink and sink

Abstract

The present application belongs to the field of kitchen and bathroom utensils, and particularly relates to a bounce type sink drain and a sink. The bounce type sink drain comprises a shell, a cover and a sealing assembly, and the sealing assembly comprises a sealing cover and a bounce driving mechanism. The bounce driving mechanism is provided with a buffer, which provides a buffer resistance for the bounce driving mechanism when switching states, so that the cover can be prevented from being separated from the assembly position due to excessive impact force when the sealing assembly moves upward. Meanwhile, the structure of the sink drain is protected, and the bounce driving mechanism is prevented from damaging the structure of the sink drain due to tension and pressure. In addition, the sink of the present application applies the above-mentioned bounce type sink drain.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of kitchen and bathroom appliances, in particular to a bounce type water drain and sink. BACKGROUND

[0002] The bounce type water drain is a drainage device placed in the drain of a bathtub, washbasin, etc., and has the functions of draining and storing water. The existing bounce type water drain realizes the functions of storing and draining water through a sealing ring connected by a bounce switch. The general structure includes a shell, a bounce switch, and a cover connected to the bounce switch. The bounce switch is provided with a sealing ring. The functions of pressing and compressing are used to realize the functions of storing and draining water. When the bounce switch is pressed, the bounce switch is lifted, the water path is opened, and the water is drained. When the bounce switch is pressed again, the bounce switch is reset, the sealing ring is closed with the water path of the drain pipe, and the water is stored. When the water drain is pressed to open the drain, the spring force of the bounce switch is too large, which easily causes the cover to be popped out of the assembly position. SUMMARY

[0003] The first invention of the present application aims to overcome the problem that the cover of the existing bounce type water drain is easily popped out of the assembly position. A bounce type water drain is provided by adding a buffer to offset the excessive force.

[0004] In order to solve the above technical problems, the present application adopts the following technical scheme:

[0005] The bounce type water drain includes a shell, a cover, and a sealing assembly. The shell is provided with a water inlet cavity and a water outlet part that are in communication with each other. The shell is provided with a support step at the connection between the water inlet cavity and the water outlet part. The faceplate is arranged at the water inlet of the water inlet cavity. The sealing assembly includes a sealing cover and a bounce driving mechanism. The sealing cover is connected with the cover in linkage and has a sealing state and an unsealing state. The sealing cover is abutted on the support step in the sealing state and is located in the water inlet cavity in the unsealing state. The bounce driving mechanism has a compression state and a lift state and is arranged on the lower side of the sealing cover in linkage to drive the sealing assembly to switch between the sealing state and the unsealing state when the cover is pressed. The bounce driving mechanism is provided with a buffer. The buffer provides a buffer resistance when the sealing assembly switches.

[0006] The bounce driving mechanism of the present application is provided with a buffer. The buffer provides a buffer resistance for the bounce driving mechanism when it switches. This can avoid the cover from being separated from the assembly position due to the excessive impact force when the sealing assembly moves upward. At the same time, the structure of the water drain is protected, and the bounce driving mechanism is prevented from generating a pulling force and a pressure to damage the structure of the water drain.

[0007] Further, the buffer is a hydraulic cylinder, the bounce driving mechanism further comprises a mounting base, a movable rod arranged in the mounting base, a positioning member and an elastic member, the upper part of the movable rod protrudes from the mounting base and is connected with the sealing cover to be linked with the sealing cover, the movable rod is provided with a positioning structure, the positioning member is matched with the positioning structure to keep the movable rod fixed after descending and resetting, and the elastic member and the hydraulic cylinder are located at the lower side of the movable rod.

[0008] Further, the bounce driving mechanism further comprises a buckle member, the mounting base is provided with an installation groove with an open upper end, the bottom of the installation groove is provided with a connecting through hole, the cylinder body of the hydraulic cylinder is fixedly connected with the movable rod, the terminal end of the telescopic rod of the hydraulic cylinder extends to the outside of the bottom of the installation groove through the connecting through hole, the buckle member is located outside the connecting through hole and is clamped on the telescopic rod, and the outer wall of the telescopic rod is provided with a groove for the buckle member.

[0009] Further, the telescopic rod comprises a rod body and an extension arranged at the terminal end of the rod body, the groove is arranged on the extension, and a limiting step is formed between the rod body and the extension, and the limiting step abuts against the inner bottom wall of the installation groove. In the scheme, the limiting step limits the downward displacement of the movable rod, and the movable rod is limited to the bottom of the mounting base and is limited to displace relative to the mounting base by cooperating with the buckle member, so that the buffering function of the hydraulic cylinder is ensured.

[0010] Further, the positioning structure comprises a first clamping position and a second clamping position arranged on the outer wall of the movable rod and distributed upward and downward, and a sliding track connecting the first clamping position and the second clamping position, the positioning member comprises a movable end and a fixed end, the fixed end is fixed on the mounting base, and the movable end is clamped on the first clamping position and can slide along the track from the first clamping position to the second clamping position. In the scheme, the first clamping position is located on the upper side of the second clamping position, the other end of the positioning member is fixed on the mounting base, the movable rod is forced to descend, the positioning member can slide to the first clamping position, the elastic member is in a compressed state at this time, the positioning member is clamped on the first clamping position to limit the movable rod from rising, the movable rod is forced to descend again, the positioning member is separated from the first clamping position, the movable rod rises under the action of the elastic force, the positioning buckle enters the second clamping position along the sliding track, and the movable rod is limited to move again so as to keep the movable rod fixed after rising.

[0011] Furthermore, the positioning structure also includes a positioning boss and a first pressing part. The upper side of the positioning boss has a concave first locking position. The first pressing part is located above the first locking position and is wedge-shaped. The lower side of the positioning boss has a wedge-shaped second pressing part. The sliding track includes a first track and a second track. The first track is arranged along the left side of the positioning boss, and the second track is arranged along the right side of the positioning boss. The upper sides of the first track and the second track are connected at the first locking position. The lower sides of the first track and the second track are connected to the bottom of the second pressing part. The bottom of the first track extends downwards at the connection point to form the second locking position. The first pressing part and the second pressing part press the movable end respectively when the movable rod descends. The first pressing part presses the movable end against the second track, and the second pressing part presses the movable end against the first track. The locking position is limited to the movable end entering from one track and exiting from the other track. That is, after the movable end leaves the locking position, it can only slide along a specific running trajectory and cannot return to the locking position along the same path, avoiding the movable end being repeatedly locked onto one locking position, thus affecting the positioning function.

[0012] Furthermore, the elastic element is a compression spring, which abuts against the bottom of the movable rod and the mounting groove.

[0013] Alternatively, the hydraulic cylinder is a spring-return cylinder, and the elastic element is a spring disposed within the hydraulic cylinder.

[0014] Furthermore, the bottom outer side of the mounting base is provided with a connecting protrusion, the bottom of the mounting base is provided with a clearance opening, one end of the positioning member is movably connected to the positioning structure, and the other end passes through the clearance opening and is connected to the connecting protrusion.

[0015] Another objective of this invention is to provide a sink comprising a sink body, a drain outlet on the body, and a drain assembly mounted on the drain outlet, wherein the spring-loaded drain assembly is the spring-loaded drain assembly described above. Compared with the prior art, the sink of this invention, due to the application of the drain assembly described above, possesses all the advantages of the aforementioned solutions. Attached Figure Description

[0016] Figure 1 Disassembly of the pop-up drain assembly Figure 1 ;

[0017] Figure 2 Disassembly of the pop-up drain assembly Figure 2 ;

[0018] Figure 3 Disassembly of sealing components Figure 1 ;

[0019] Figure 4 Assembly of the pop-up drain assembly Figure 1 ;

[0020] Figure 5 Assembly of the pop-up drain assembly Figure 2 ;

[0021] Figure 6 This is an assembly drawing of the sealing assembly;

[0022] Figure 7 This is a schematic diagram of the movable rod.

[0023] Figure 8 A cross-section of the spring-loaded drain device when the outlet section is unsealed. Figure 1 ;

[0024] Figure 9 for Figure 8 Enlarged view of part A;

[0025] Figure 10 Cross-section of a spring-loaded drain assembly when the outlet section is sealed. Figure 2 ;

[0026] Figure 11 for Figure 10 Enlarged view of part B;

[0027] Figure 12 A cross-section of the spring-loaded drain device when the outlet section is unsealed. Figure 1 ;

[0028] Figure 13 for Figure 12 Enlarged view of part C;

[0029] Figure 14 Cross-section of a spring-loaded drain assembly when the outlet section is sealed. Figure 2 ;

[0030] Figure 15 for Figure 14 Enlarged view of part D;

[0031] Figure 16 This is an exploded view of the partial structure of the water tank;

[0032] Figure 17 This is a partial structural diagram of the water tank.

[0033] 1. Bounce-type drain assembly; 11. Upper housing; 12. Lower pipe body; 13. Outer housing; 14. Inner housing; 15. Basket; 16. Mounting hole; 17. Water outlet; 18. Support step; 2. Cover; 21. Support leg; 3. Sealing assembly; 31. Sealing cover; 31. First connecting part; 311. Limiting groove; 312. Connecting shaft hole; 314. Sealing ring; 32. Bounce drive mechanism; 4. Mounting base; 41. Mounting groove; 40. Connecting through hole; 45. Connecting protrusion; 42. Clearance opening; 43. Assembly hole; 44. Movable rod; 5. Positioning. Structure 50, first pressing part 51, first locking position 52, second locking position 53, first track 55, second track 56, first branch 561, second branch 562, positioning boss 57, second pressing part 58, connecting groove 591, second connecting part 592, positioning component 6, movable end 61, fixed end 62, hydraulic cylinder 7, telescopic rod 71, extension part 711, limiting step 712, recess 713, cylinder body 72, elastic element 8, buckle 91, fastener 92. Detailed Implementation

[0034] The specific embodiments of the present invention are described below with reference to the accompanying drawings.

[0035] In the description of this invention, it should be understood that the orientation or positional relationship indicated by terms such as "left", "right", "inner", and "outer" is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing this invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0036] Example 1:

[0037] See Figures 1-11 As shown, this embodiment discloses a spring-loaded drainer, including a housing, a cover 2, and a sealing assembly 3. The housing has an inlet chamber and an outlet that are interconnected. A support step 18 is provided at the connection between the inlet chamber and the outlet. The cover is located at the inlet of the inlet chamber. The sealing assembly 3 includes a sealing cap 31 and a spring-loaded drive mechanism 4. The sealing cap 31 is linked to the cover 2 and has a sealed state and an unsealed state. In the sealed state, the sealing cap 31 abuts against the support step 18 to seal the outlet. In the unsealed state, it is located in the inlet chamber to unseal the outlet. The spring-loaded drive mechanism 4 has a compressed state and a spring-loaded state and is linkedly located on the lower side of the sealing cap 31 to drive the sealing assembly 3 to switch between the sealed state and the unsealed state when the cover 2 is pressed. The spring-loaded drive mechanism 4 is provided with a buffer, which provides buffering resistance when the sealing assembly 3 switches states.

[0038] The above includes an upper shell 11 and a lower pipe 12 connected vertically. The inner cavities of the upper shell 11 and the lower pipe 12 are respectively a water inlet cavity and a water outlet.

[0039] The upper housing 11 includes an outer housing 13 and an inner housing 14. The upper and lower sides of the inner housing 14 are sealed to the inner side of the outer housing 13. The inner housing 14 is assembled inside the outer housing 13. The lower tube 12 is located at the bottom of the outer housing 13.

[0040] The aforementioned buffer is a hydraulic cylinder 7. The bouncing drive mechanism 4 also includes a mounting base 41 and a movable rod 5, a positioning component 6, and an elastic element 8 disposed within the mounting base 41. The mounting base 41 is connected to the inner side of the lower tube body 12. The upper part of the movable rod 5 protrudes from the mounting base 41 and is connected to the sealing cover 31 to be linked with the sealing cover 31. The movable rod 5 is provided with a positioning structure 50. The positioning component 6 cooperates with the positioning structure 50 to keep the movable rod 5 fixed after it descends and resets. The elastic element 8 provides a reset elastic force for the movable rod 5. The hydraulic cylinder 7 provides a buffering force when the movable rod 5 descends or resets.

[0041] To facilitate the assembly of the hydraulic cylinder 7, the bouncing drive mechanism 4 also includes a snap fastener 91. The mounting base 41 has a mounting groove 40 with an upper opening. The bottom of the mounting groove 40 has a connecting through hole 45. The cylinder body 72 of the hydraulic cylinder 7 is fixedly connected to the movable rod 5. The end of its telescopic rod 71 extends to the bottom outside of the mounting groove 40 through the connecting through hole 45. The snap fastener 91 is located outside the connecting through hole 45 and is snapped onto the telescopic rod 71. The outer wall of the telescopic rod 71 has a recess 713 that cooperates with the snap fastener 91, so that the snap fastener 91 is snapped onto the recess 713 and abuts against the mounting groove 40. This can restrict the end of the telescopic rod 71 from retracting into the mounting groove 40, thereby connecting the end of the movable rod 5 to the bottom of the mounting base 41.

[0042] According to further optimization of the above scheme, the telescopic rod 71 includes a rod body and an extension 711 provided at the end of the rod body. A recess 713 is provided on the extension 711. A limiting step 712 is formed between the rod body and the extension 711. The limiting step 712 abuts against the inner bottom wall of the mounting groove 40. It cooperates with the buckle 91 to restrict the end of the movable rod 5 to the bottom of the mounting seat 41, restrict the displacement of the movable rod 5 relative to the mounting seat 41, and ensure the buffering function of the hydraulic cylinder 7.

[0043] According to further optimization of the above scheme, the positioning structure 50 includes a first locking position 52 and a second locking position 53 disposed on the outer wall of the movable rod 5 and distributed vertically, and a sliding track connecting the two. The positioning component 6 includes a movable end 61 and a fixed end 62. The fixed end 62 is fixed to the mounting base 41, and the movable end 61 is movably fastened to the first locking position 52 and can slide along the track from the first locking position 52 to the second locking position 53. When the elastic element is in a compressed state, the movable end 61 of the positioning component 6 is fastened to the first locking position 52. When the elastic element is reset, the movable rod 5 moves the positioning component 6 upward relative to it. After moving into position, the movable end 61 is fastened to the second locking position 53. This scheme is a specific structural design for the positioning structure 50 to achieve the positioning function. In this scheme, the fixed end 62 of the positioning component 6 is fixed to the mounting base 41, and the first locking position 52 is located above the second locking position 53. Therefore, after the movable rod 5 is subjected to force and descends, it moves downward relative to the positioning component 6, causing the movable end 61 of the positioning component 6 to move along the sliding track towards the first locking position 52. When it moves into place, the elastic element is in a compressed state, and the positioning component 6 is fastened to the first locking position 52 to restrict the movable rod 5 from rising. When the movable rod 5 is subjected to force and descends again, the positioning component 6 disengages from the first locking position 52, allowing the movable rod 5 to rise under the action of elastic force, that is, to move upward relative to the positioning component 6. The positioning fastener then enters the second locking position 53 along the sliding track, restricting the movement of the movable rod 5 again, so that the movable rod 5 remains fixed after rising.

[0044] According to further optimization of the above scheme, the positioning structure 50 also includes a positioning boss 57 and a first pressing part 51. The upper side of the positioning boss 57 is provided with a concave first locking position 52. The first pressing part 51 is located on the upper side of the first locking position 52 and is wedge-shaped. The lower side of the positioning boss 57 is provided with a wedge-shaped second pressing part 58. The sliding track includes a first track 55 and a second track 56. The first track 55 is arranged along the left side of the positioning boss 57, and the second track 56 is arranged along the right side of the positioning boss 57. The upper sides of the first track 55 and the second track 56 are connected at the first locking position 52. The lower sides of the first track 55 and the second track 56 are connected to the bottom of the second pressing part 58. The bottom of the first track 55 extends downward at the connection between the two to form a second locking position 53. In this design, when the movable rod 5 descends, the first pressing part 51 can press the movable end 61 onto the second track 56, allowing it to slide along the second track 56 into the second locking position 53. The second pressing part 58 can, when the movable rod 5 descends, press the movable end 61, which has detached from the second locking position 53 and moved to the junction of the first track 55 and the lower side of the second track 56, onto the first track 55, allowing it to return along the first track 55 to the first locking position 52. This design is a further optimization of the positioning structure 50. In this design, the locking position is limited to the movable end 61 entering from one track and entering another track upon leaving. That is, after leaving the locking position, the movable end 61 can only slide along a specific running trajectory and cannot return to the original locking position, avoiding the movable end 61 being repeatedly locked onto one locking position, thus affecting the positioning function.

[0045] The middle part of the first locking position 52 is offset to the right relative to the first pressing part 51 so that when the movable rod 5 descends, it pushes the movable end 61 to the right and causes it to enter the second track 56. The second pressing part 58 is offset to the left relative to the second locking position 53 so that after the movable end 61 disengages from the second locking position 53, it pushes it to the left and causes it to move on the first track 55.

[0046] According to further optimization of the above scheme, both the first track 55 and the second track 56 include a first branch 561 arranged longitudinally and a second branch 562 extending obliquely downward from the upper end of the first branch 561 to the first locking position 52. A wedge-shaped first pressing part 51 is formed between the upper sides of the second branch 562 of the two, and the first pressing part 51 is offset relative to the first locking position 52 towards one side of the first track 55.

[0047] According to further optimization of the above scheme, the elastic element 8 is a compression spring, which abuts against the bottom of the movable rod 5 and the mounting groove 40.

[0048] To achieve the slag-separating function of the drain device, a basket 15 is also included. The bottom of the basket 15 abuts against the upper side of the sealing cover 31. The cover is provided with a support foot 21, which rests against the upper edge of the basket 15. When the cover 2 is pressed up and down, the basket 15 and the sealing component 3 work together to seal and unseal the water outlet.

[0049] To enable the assembly of the positioning component 6, a connecting protrusion 42 is provided on the outer side of the bottom of the mounting base 41, and a clearance opening 43 is provided at the bottom of the mounting base 41. One end of the positioning component 6 is movably connected to the positioning structure 50, and the other end passes through the clearance opening 43 and is connected to the connecting protrusion 42.

[0050] According to the further optimization of the above scheme, the connecting protrusion 42 is provided with an assembly hole 44 to cooperate with the fixing end 62. The fixing end 62 is inserted into the assembly hole 44. The outer periphery of the connecting protrusion 42 is provided with a groove, and the groove is fitted with a fastener 92. The fastener 92 fastens the fixing end 62 and the connecting protrusion 42 together.

[0051] Based on further optimization of the above scheme, fastener 92 is a snap ring.

[0052] To enable the mounting base 41 to be assembled and to enable the sealing component 3 to be connected to the housing, the water outlet includes a water outlet hole 17 and a mounting hole 16. The water outlet hole 17 is arranged around the mounting hole 16, and the mounting base 4 is arranged inside the mounting hole 16.

[0053] To achieve the sealing function, the sealing assembly 3 includes a sealing ring 32, and the sealing cover 31 includes a body and a first connecting part 311 located on the lower side of the body. The sealing ring 32 is sleeved on the outer periphery of the first connecting part 311.

[0054] To enable the assembly of the elastic drive mechanism and the sealing component 3, a limiting groove 312 is provided around the outer periphery of the first connecting part 311, and the sealing ring 32 is fitted onto the limiting groove 312.

[0055] According to further optimization of the above scheme, the inner side of the first connecting part 311 is provided with a connecting shaft hole 314, and the upper end of the movable rod 5 is provided with a second connecting part 592.

[0056] According to further optimization of the above scheme, the movable rod 5 is provided with a connecting groove 591, and the cylinder body 72 of the hydraulic cylinder 7 is fixed on the connecting groove 591.

[0057] The bouncing drive mechanism 4 in this embodiment includes a positioning component 6 and a hydraulic cylinder 7. The positioning component 6 cooperates with the positioning structure 50 to keep the movable rod 5 fixed after it descends or returns to the position, thus preventing excessive displacement of the sealing component 3 and the cover from being ejected from the assembly position. The hydraulic cylinder 7 provides a buffer force for the descent or return of the bouncing drive mechanism 4. On the one hand, it can prevent the cover from being ejected from the assembly position by the elastic force. On the other hand, it protects the elastic element 8 and the positioning component 6 from being squeezed, stretched or deformed.

[0058] Example 2:

[0059] See Figures 12-15As shown, the difference between this embodiment and the previous embodiment is that the hydraulic cylinder 7 is a spring-return cylinder, and the elastic element 8 is a spring located inside the hydraulic cylinder 7. This solution uses the spring integrated into the hydraulic cylinder 7 to provide the return force for the elastic drive mechanism, which simplifies the structural design of the elastic drive mechanism and facilitates the processing and assembly of the drain assembly.

[0060] Example 3:

[0061] As shown in Figures 16-17, this embodiment discloses a sink, which includes a sink body 10 and a spring-loaded drain assembly 1 as described in Embodiment 1 or 2, which is assembled at the drain outlet 101 of the body 10. The sink of this embodiment has the advantages of being easy to use, easy to clean, and not prone to clogging.

[0062] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the present invention.

Claims

1. A spring-loaded drainer, characterized in that, include: The shell has an inlet chamber and an outlet chamber that are interconnected, and the shell has a supporting step between the inlet chamber and the outlet chamber; The cover is located at the water inlet of the water inlet chamber; A sealing assembly includes a sealing cap and a spring-loaded drive mechanism. The sealing cap is linked to the face cover and has a sealed state and an unsealed state. In the sealed state, the sealing cap abuts against the support step, and in the unsealed state, it is located inside the water inlet chamber. The spring-loaded drive mechanism has a compressed state and a spring-loaded state and is linkedly disposed on the lower side of the sealing cap to drive the sealing assembly to switch between the sealed state and the unsealed state when the face cover is pressed. The spring-loaded drive mechanism is provided with a buffer, which provides buffering resistance when the sealing assembly switches states. The buffer is a hydraulic cylinder. The bouncing drive mechanism also includes a mounting base and a movable rod. The upper part of the movable rod protrudes from the mounting base and is connected to the sealing cover to link with the sealing cover. The bouncing drive mechanism also includes a snap fastener. The mounting base has a mounting groove with an upper opening. The bottom of the mounting groove has a connecting through hole. The cylinder body of the hydraulic cylinder is fixedly connected to the movable rod. The end of its telescopic rod extends to the bottom outside of the mounting groove through the connecting through hole. The snap fastener is located outside the connecting through hole and is snapped onto the telescopic rod.

2. The spring-loaded drain device according to claim 1, characterized in that, The bouncing drive mechanism also includes a positioning component and an elastic element disposed in the mounting base. The movable rod is provided with a positioning structure. The positioning component cooperates with the positioning structure to keep the movable rod fixed after it descends and resets. The elastic element and the hydraulic cylinder are located on the lower side of the movable rod.

3. The spring-loaded drain device according to claim 2, characterized in that, The outer wall of the telescopic rod is provided with a recessed area that mates with the buckle.

4. The spring-loaded drain device according to claim 3, characterized in that, The telescopic rod includes a rod body and an extension portion disposed at the end of the rod body. The recess is disposed on the extension portion, and a limiting step is formed between the rod body and the extension portion. The limiting step abuts against the inner bottom wall of the mounting groove.

5. The spring-loaded drain device according to claim 2, characterized in that, The positioning structure includes a first locking position and a second locking position disposed on the outer wall of the movable rod and distributed vertically, and a sliding rail connecting the two. The positioning component includes a movable end and a fixed end. The fixed end is fixed to the mounting base, and the movable end is movably fastened to the first locking position and can slide along the rail from the first locking position to the second locking position.

6. The spring-loaded drain device according to claim 5, characterized in that, The positioning structure further includes a positioning boss and a first pressing part. The upper side of the positioning boss is provided with a concave first locking position. The first pressing part is located above the first locking position and is wedge-shaped. The lower side of the positioning boss is provided with a wedge-shaped second pressing part. The sliding track includes a first track and a second track. The first track is arranged along the left side of the positioning boss, and the second track is arranged along the right side of the positioning boss. The upper sides of the first track and the second track are connected at the first locking position. The lower sides of the first track and the second track are connected to the bottom of the second pressing part. The bottom of the first track extends downward at the connection between the two to form the second locking position.

7. The spring-loaded drain device according to claim 6, characterized in that: The middle part of the first locking position is offset to the right relative to the first pressing part, and the second pressing part is offset to the left relative to the second locking position.

8. The spring-loaded drain device according to claim 2, characterized in that: The hydraulic cylinder is a spring-return cylinder, and the elastic element is a spring disposed inside the hydraulic cylinder.

9. The spring-loaded drain device according to claim 2, characterized in that: The mounting base has a connecting protrusion on its bottom outer side and a clearance opening at its bottom. One end of the positioning member is movably connected to the positioning structure, and the other end passes through the clearance opening and connects to the connecting protrusion.

10. A water tank, comprising a tank body, a drain outlet disposed on the body, and a drain assembly fitted at the drain outlet, characterized in that, The bouncy drain is the bouncy drain as described in any one of claims 1-9.

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