Upward turning type buffer
By designing an upward-turning buffer including sleeve, rotating shaft core, movable blade and damping oil, the problem of the lack of cushioning function of the existing toilet flip is solved, and good cushioning effect and structural compactness are achieved.
Patent Information
- Application Number
- CN202421397455.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-18
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-06-18
AI Technical Summary
The existing toilet flip lacks cushioning function, resulting in huge noise when flipped and dropped, and damage to the toilet lid and ceramic body.
An upward-turning buffer is designed, including a sleeve, a rotating shaft core, a movable blade and a damping oil. The first and second movable chambers are formed through the coordination of the moving convex strip and the movable blade. The damping oil flows between different chambers, adjusts the buffering torque, and slows down the upward speed of the toilet cover.
It achieves good cushioning effect during the toilet lid turning, reduces noise, protects the service life of the toilet, and has a compact structure, short shape, low cost production and high reliability.
Smart Images
Figure CN222787614U_ABST
Abstract
Description
[Technical field]
[0002] The utility model relates to the technical field of bathrooms, in particular to an upward flip-up type buffer. [Background technology]
[0004] As a bathroom product in people's daily life, toilets are very popular and widely used. At present, the toilet lids on the market are simply provided with a rotating structure. When opening and falling, they have no buffering function and often collide, that is, a huge noise is generated, and at the same time, certain damage is caused to the toilet lid and the toilet ceramic body.
[0005] Other toilet lids and toilet seats are usually connected to the toilet via hinges. However, the hinges of the toilet lids are difficult to play a buffering role when the lids and seat rings are closed, causing the toilet lids to buckle directly on the seat rings and make a "bang" sound, affecting the user experience.
[0006] For this reason, the present invention is studied and proposed in view of the above-mentioned problems. [Contents of the utility model]
[0008] The utility model aims to overcome the deficiencies of the prior art and provides an upwardly flipping type buffer, which has the characteristics of good buffering and damping effect, compact structure, short outer dimensions, low-cost production and high reliability.
[0009] The utility model is realized by the following technical solutions:
[0010] An upward flip-up type buffer, characterized by comprising:
[0011] A sleeve 1, wherein the inner wall of the sleeve 1 is provided with a static convex strip 11 extending along the length direction thereof;
[0012] A rotating shaft core 2, the rotating shaft core 2 can be rotatably inserted into the inner side of the sleeve 1, the rotating shaft core 2 is fixedly connected to the toilet seat ring, a sealed cavity 10 is formed between the outer wall of the rotating shaft core 2, the inner wall of the sleeve 1 and the corresponding side wall of the static convex strip 11, and the outer wall of the rotating shaft core 2 is provided with a dynamic convex strip 21 extending along the length direction and located on the inner side of the corresponding sealed cavity 10;
[0013] The movable blade 3 is located between the movable convex strip 21 and the sleeve 1 and can be linked to the movable convex strip 21 for corresponding movement. The movable convex strip 21 cooperates with the movable blade 3 to separate the corresponding sealed cavity 10 into a first movable cavity 101 and a second movable cavity 102 filled with damping oil. When the rotating shaft core 2 rotates counterclockwise relative to the sleeve 1, the movable convex strip 21 seals and cooperates with the movable blade 3, and the movable convex strip 21 drives the movable blade 3 to rotate accordingly to compress the first movable cavity 101.
[0014] The outer wall of the rotating shaft core 2 is provided with a connecting groove 22 for use with the end of the static convex strip 11. The connecting groove 22 is configured to connect the first active cavity 101 of one sealed cavity 10 with the second active cavity 102 of another sealed cavity 10 when the rotating shaft core 2 rotates relative to the sleeve 1 to a preset angle range;
[0015] When the rotating shaft core 2 rotates clockwise relative to the sleeve 1 to reset, a connecting passage 103 for connecting the first active chamber 101 with the second active chamber 102 is formed between the movable convex strip 21 and the movable blade 3;
[0016] When the seat ring is closed on the toilet, the damping oil inside the buffer is gathered in the first movable chamber. When the seat ring is opened upward, the rotating shaft core is driven to rotate counterclockwise. The damping oil in the first movable chamber is pressurized, so that the first blocking convex strip of the movable blade is closely attached to the moving convex strip of the rotating shaft core to form an oil sealing surface. During the upward turning process of the seat ring from 0 degrees to 40 degrees, the rotating shaft core is buffered by the damping oil to slow down the upward turning speed of the seat ring.
[0017] During the process of the seat ring turning up from 40 degrees to 70 degrees, the damping oil in the first active chamber flows to the second active chamber through the connecting groove, the rotating shaft core has no buffer or low buffer, the buffer torque of the rotating shaft core becomes weak, and the speed of the seat ring turning up is faster than the speed of the seat ring from 40 degrees to 70 degrees;
[0018] When the seat ring turns up from 70 degrees to 110 degrees, the connecting groove 22 is staggered with the static convex strip 11, and the first movable cavity is isolated from the second movable cavity to form a seal again, so that the buffer torque of the rotating shaft core is increased, and the seat ring turns up slowly; the damping oil in the first movable cavity flows to the second movable cavity;
[0019] When the seat ring is closed by external force, the rotating shaft core rotates clockwise, and the damping oil in the second movable chamber flows to the first movable chamber through the connecting groove and the connecting channel.
[0020] In the upward flip-up type buffer as described above, the connecting groove 22 is also configured so that when the rotating shaft core 2 continues to rotate relative to the sleeve 1 to isolate the connecting groove 22 from the first active cavity 101 or the second active cavity 102, the first active cavity 101 of one sealed cavity 10 is isolated from the second active cavity 102 of another sealed cavity 10.
[0021] As described above, an upward flip-up type buffer, the movable blade 3 includes a blade body 31 whose outer wall is sealed with the inner wall of the sleeve 1, and the inner wall of the blade body 31 is provided with a first blocking ridge 32 which cooperates with the movable ridge 21 to block and seal when the rotating shaft core 2 rotates counterclockwise relative to the sleeve 1, and a second blocking ridge 33 which cooperates with the movable ridge 21 to block and seal when the rotating shaft core 2 rotates clockwise relative to the sleeve 1 to reset.
[0022] In the flip-up type buffer as described above, the connecting passage 103 includes a connecting hole provided on the second blocking ridge 33 for connecting the second active cavity 102 with the inner cavity of the active blade 3 .
[0023] As described above, in an upward flip-up type buffer, a locking structure 4 is provided between the movable protrusion 21 and the first blocking protrusion 32 and / or the second blocking protrusion 33, and the locking structure 4 includes a locking recess provided on the movable protrusion 21 for locking and cooperating with the first blocking protrusion 32 and / or the second blocking protrusion 33.
[0024] In the flip-up type buffer as described above, the blade body 31, the first blocking ridge 32 and the second blocking ridge 33 are integrally injection-molded.
[0025] In the upward flip-up buffer as described above, the sleeve 1 is open at one end and blocked at the other end, the open end of the sleeve 1 is provided with a pressure cover 5 for preventing the rotating shaft core 2 from separating from the sleeve 1, and the pressure cover 5 is provided with a pressure cover through hole 51 for the outer end of the rotating shaft core 2 to pass through and be exposed to the outside.
[0026] As described above, in an upward flip-up type buffer, a positioning structure 6 is provided between the rotating shaft core 2 and the blocking end of the sleeve 1, and the positioning structure 6 includes a positioning hole 61 provided on the blocking end of the sleeve 1 and a positioning protrusion 62 provided on the inner end of the rotating shaft core 2 and capable of being inserted and positioned in the positioning hole 61.
[0027] In the upward flip-up buffer as described above, a sealing ring 7 is provided between the inner wall of the gland through hole 51 and the outer wall of the rotating shaft core 2, and / or the inner end of the gland 5 is connected to a gasket 8 for engaging with a limiting convex ring on the outer wall of the rotating shaft core 2.
[0028] Compared with the prior art, the utility model has the following advantages:
[0029] 1. In the utility model, when the rotating shaft core rotates counterclockwise relative to the sleeve, the movable convex strip is sealed with the movable blade, and the movable convex strip drives the movable blade to rotate accordingly to compress the first movable chamber so that the volume of the first movable chamber gradually decreases. At this moment, the damping oil in the first movable chamber is compressed and exerts a damping force on the rotating shaft core, thereby generating a large buffering torque on the rotating core shaft, slowing down the counterclockwise rotation speed of the rotating core shaft, and having the characteristics of good buffering and damping effect, compact structure, short external dimensions, low-cost production, and high reliability.
[0030] 2. In order to facilitate resetting for next reuse, when the rotating shaft core rotates clockwise relative to the sleeve to reset, a connecting channel for connecting the first active cavity with the second active cavity is formed between the movable convex strip and the movable blade.
[0031] 3. To facilitate rotation, the connecting groove is configured to connect the first movable cavity of one sealed cavity with the second movable cavity of another sealed cavity when the rotating shaft core rotates to a preset angle range relative to the sleeve.
[0032] 4. In order to ensure reliable connection between the movable convex strip and the first blocking convex strip and / or the second blocking convex strip, a locking structure is provided between the movable convex strip and the first blocking convex strip and / or the second blocking convex strip.
[0033] 5. In order to ensure that the rotating shaft core is accurately positioned relative to the sleeve and rotates stably, a positioning structure is provided between the rotating shaft core and the sealing end of the sleeve.
Brief Description of the Drawings
[0035] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:
[0036] Figure 1 It is an exploded view of the utility model.
[0037] Figure 2 It is a cross-sectional view of the utility model.
[0038] Figure 3 for Figure 2 One of the cross-sectional views of AA.
[0039] Figure 4 for Figure 3 One of the state diagrams of the state when applied to a toilet lid.
[0040] Figure 5 for Figure 2 The second cross-sectional view of AA.
[0041] Figure 6 for Figure 5 The second schematic diagram of the state when applied to a toilet lid.
[0042] Figure 7 for Figure 2 The third cross-sectional view of AA.
[0043] Figure 8 for Figure 7 The third state diagram of the state when applied to a toilet lid.
[0044] Fig. 9 for Figure 2 The fourth cross-sectional view of AA.
[0045] Fig.10 for Fig. 9 The fourth state diagram of the state when applied to a toilet lid.
[0046] Fig.11 for Figure 2One of the cross-sectional views of BB.
[0047] Fig.12 for Fig.11 One of the state diagrams of the state when applied to a toilet lid.
[0048] Fig.13 for Figure 2 The second cross-sectional view of BB.
[0049] Fig.14 for Fig.13 The second schematic diagram of the state when applied to a toilet lid. [Specific implementation method]
[0051] The implementation modes of the present utility model are described in detail below in conjunction with the accompanying drawings.
[0052] like Figure 1-14 As shown, the utility model is an upward flip-up type buffer, characterized by comprising:
[0053] A sleeve 1, wherein the inner wall of the sleeve 1 is provided with a static convex strip 11 extending along the length direction thereof;
[0054] A rotating shaft core 2, the rotating shaft core 2 can be rotatably inserted into the inner side of the sleeve 1, the rotating shaft core 2 is fixedly connected to the toilet seat ring, a sealed cavity 10 is formed between the outer wall of the rotating shaft core 2, the inner wall of the sleeve 1 and the corresponding side wall of the static convex strip 11, and the outer wall of the rotating shaft core 2 is provided with a dynamic convex strip 21 extending along the length direction and located on the inner side of the corresponding sealed cavity 10;
[0055] The movable blade 3 is located between the movable convex strip 21 and the sleeve 1 and can be linked to the movable convex strip 21 for corresponding movement. The movable convex strip 21 cooperates with the movable blade 3 to separate the corresponding sealed cavity 10 into a first movable cavity 101 and a second movable cavity 102 filled with damping oil. When the rotating shaft core 2 rotates counterclockwise relative to the sleeve 1, the movable convex strip 21 seals and cooperates with the movable blade 3, and the movable convex strip 21 drives the movable blade 3 to rotate accordingly to compress the first movable cavity 101.
[0056] The outer wall of the rotating shaft core 2 is provided with a connecting groove 22 for use with the end of the static convex strip 11. The connecting groove 22 is configured to connect the first active cavity 101 of one sealed cavity 10 with the second active cavity 102 of another sealed cavity 10 when the rotating shaft core 2 rotates relative to the sleeve 1 to a preset angle range;
[0057] When the rotating shaft core 2 rotates clockwise relative to the sleeve 1 to reset, a connecting passage 103 for connecting the first active chamber 101 with the second active chamber 102 is formed between the movable convex strip 21 and the movable blade 3;
[0058] When the seat ring is closed on the toilet, the damping oil inside the buffer is gathered in the first movable chamber. When the seat ring is opened upward, the rotating shaft core is driven to rotate counterclockwise. The damping oil in the first movable chamber is pressurized, so that the first blocking convex strip of the movable blade is closely attached to the moving convex strip of the rotating shaft core to form an oil sealing surface. During the upward turning process of the seat ring from 0 degrees to 40 degrees, the rotating shaft core is buffered by the damping oil to slow down the upward turning speed of the seat ring.
[0059] During the process of the seat ring turning up from 40 degrees to 70 degrees, the damping oil in the first active chamber flows to the second active chamber through the connecting groove, the rotating shaft core has no buffer or low buffer, the buffer torque of the rotating shaft core becomes weak, and the speed of the seat ring turning up is faster than the speed of the seat ring from 40 degrees to 70 degrees;
[0060] When the seat ring turns up from 70 degrees to 110 degrees, the connecting groove 22 is staggered with the static convex strip 11, and the first movable cavity is isolated from the second movable cavity to form a seal again, so that the buffer torque of the rotating shaft core is increased, and the seat ring turns up slowly; the damping oil in the first movable cavity flows to the second movable cavity;
[0061] When the seat ring is closed by external force, the rotating shaft core rotates clockwise, and the damping oil of the second movable chamber flows to the first movable chamber through the connecting groove and the connecting passage. In the utility model, when the rotating shaft core rotates counterclockwise relative to the sleeve, the movable convex strip is sealed with the movable blade, and the movable convex strip drives the movable blade to rotate and compress the first movable chamber accordingly so that the volume of the first movable chamber gradually decreases. At this moment, the damping oil in the first movable chamber is compressed and applies a damping force to the rotating shaft core, which generates a large buffer torque on the rotating core shaft, slowing down the counterclockwise rotation speed of the rotating core shaft, and has the characteristics of good buffer damping effect, compact structure, short external dimensions, low-cost production, and high reliability.
[0062] like Fig. 9 As shown, the connecting groove 22 is also configured so that when the rotating shaft core 2 continues to rotate relative to the sleeve 1 to isolate the connecting groove 22 from the first active cavity 101 or the second active cavity 102, the first active cavity 101 of one sealed cavity 10 is isolated from the second active cavity 102 of another sealed cavity 10.
[0063] The movable blade 3 includes a blade body 31 whose outer wall is sealed with the inner wall of the sleeve 1, which ensures the sealing performance while the inner wall of the sleeve can also guide the movable blade to ensure the smooth rotation of the movable blade. In order to better link the rotation of the movable blade, the inner wall of the blade body 31 is provided with a first blocking ridge 32 that blocks and seals with the movable ridge 21 when the rotating shaft core 2 rotates counterclockwise relative to the sleeve 1, and a second blocking ridge 33 that blocks and seals with the movable ridge 21 when the rotating shaft core 2 rotates clockwise relative to the sleeve 1 to reset.
[0064] like Figure 1 ,11 As shown in FIG. 13 , the connecting passage 103 includes a connecting hole provided on the second blocking ridge 33 for connecting the second active cavity 102 with the inner cavity of the active blade 3. Fig.11 , 13 As shown, the connecting channel 103 is also formed by the gap between the end of the dynamic protrusion 21 and the inner wall of the blade body 31, the gap between the side wall of the dynamic protrusion 21 and the side wall of the first blocking protrusion 32, and the gap between the outer wall of the rotating shaft core 2 and the end of the first blocking protrusion 32.
[0065] like Figure 2 , 5 As shown in Figures 7, 9, 11 and 13, in order to ensure reliable connection between the movable ridge and the first blocking ridge and / or the second blocking ridge, a locking structure 4 is provided between the movable ridge 21 and the first blocking ridge 32 and / or the second blocking ridge 33, and the locking structure 4 includes a locking recess provided on the movable ridge 21 for locking and cooperating with the first blocking ridge 32 and / or the second blocking ridge 33.
[0066] In order to ensure the structural strength of the movable blade and reduce the manufacturing cost, the blade body 31, the first blocking ridge 32 and the second blocking ridge 33 are integrally injection molded. Alternatively, the blade body 31, the first blocking ridge 32 and the second blocking ridge 33 are die-casted from materials such as stainless steel.
[0067] like Figure 1 , 2 As shown, for the convenience of disassembly and assembly, the sleeve 1 is open at one end and blocked at the other end, and the open end of the sleeve 1 is provided with a pressure cover 5 for preventing the rotating shaft core 2 from separating from the sleeve 1, and the pressure cover 5 is provided with a pressure cover through hole 51 for the outer end of the rotating shaft core 2 to pass through and be exposed to the outside.
[0068] like Figure 1 , 2 As shown, in order to ensure accurate positioning of the rotating shaft core relative to the sleeve and stable rotation, a positioning structure 6 is provided between the rotating shaft core 2 and the sealing end of the sleeve 1. The positioning structure 6 includes a positioning hole 61 provided on the sealing end of the sleeve 1 and a positioning protrusion 62 provided on the inner end of the rotating shaft core 2 and capable of being inserted and positioned in the positioning hole 61.
[0069] like Figure 1 , 2 As shown, in order to improve the sealing performance, a sealing ring 7 is provided between the inner wall of the gland through hole 51 and the outer wall of the rotating shaft core 2 .
[0070] like Figure 1 , 2 As described above, an embedding groove for embedding the sealing ring 7 is provided on the outer wall of the rotating shaft core 2, which is convenient for installation.
[0071] like Figure 1 , 2 As shown, the inner end of the gland 5 is connected with a gasket 8 for limiting the position with the limiting convex ring of the outer wall of the rotating shaft core 2. The gasket 8 can be made of materials such as stainless steel, so that the gasket can better limit the position with the limiting convex ring of the outer wall of the rotating shaft core 2 to ensure the structural reliability between the two.
[0072] Working principle of the utility model when applied to toilet seat or cover:
[0073] 1. Initial stage: The seat ring is closed, the torsion spring in the seat ring hinge assembly stores force, and the damping oil inside the buffer gathers in the first active cavity to prepare for the cover plate to flip up. Figure 3 , 4 shown.
[0074] 2. Buffering front section: The upward torque generated by the torsion spring in the seat ring hinge assembly allows the seat ring to automatically open upward, driving the rotating shaft core to rotate counterclockwise. Due to the pressure of the damping oil in the first movable chamber, the generated counter pressure makes the first blocking convex strip of the movable blade and the moving convex strip of the rotating shaft core close to each other, forming an oil-sealing sealing surface. Under the action of pressure, the damping oil in the first movable chamber flows from each gap to the second movable chamber. At this time, due to the small total area of the gaps, a large buffering torque is generated on the rotating core shaft, slowing down the upward turning speed of the seat ring (in some embodiments, the damping oil in the first movable chamber may not flow to the second movable chamber in the above stage because the first movable chamber is sealed). Figure 5 , 6 As shown, there is a buffer in the process of the seat circle turning up from 0 degrees to 40 degrees, and the turning up speed of the seat circle in this section is slower.
[0075] 3. Buffering middle section: There is no buffering or low buffering during the process of the seat ring turning up from 40 degrees to 70 degrees; the rotating shaft core is designed with a connecting groove, and the damping oil flows to the second active chamber (low-pressure chamber) through the connecting groove. The buffering torque in this section becomes weaker, and the speed of the seat ring turning up is accelerated. Figure 7 , 8 shown.
[0076] 4. Buffer back section: When the seat ring turns up from 70 to 110 degrees, the connecting groove disappears, the first active cavity is isolated from the second active cavity and forms a seal again, which increases the buffer torque of the rotating shaft core, and the seat ring continues to turn up slowly, entering the cover plate up-turning back section. When the cover plate turns up to more than 95 degrees, the entire turning process is completed. During the entire turning process, the damping oil inside the buffer flows to the low-pressure cavity (the second active cavity). Fig. 9 , 10 shown.
[0077] 5. Seat ring closing stage: When the seat ring is closed by external force, the rotating shaft core of the buffer rotates clockwise, and the damping oil in the second active chamber flows to the first active chamber through the connecting groove and the connecting channel. Fig.11 , 12 shown.
[0078] 6. The seat circle is closed, and most of the damping oil in the second active chamber is gathered in the first active chamber to prepare for the next upward turn. Fig.13 , 14 shown.
Claims
1. A flip-up buffer, characterized in that include: A sleeve (1), wherein the inner wall of the sleeve (1) is provided with a static convex strip (11) extending along the length direction thereof; A rotating shaft core (2), the rotating shaft core (2) being rotatably inserted into the inner side of the sleeve (1), the rotating shaft core (2) being fixedly connected to the toilet seat, a sealing cavity (10) being formed between the outer wall of the rotating shaft core (2), the inner wall of the sleeve (1) and the corresponding side wall of the static convex strip (11), and the outer wall of the rotating shaft core (2) being provided with a dynamic convex strip (21) extending along the length direction and located on the inner side of the corresponding sealing cavity (10); A movable blade (3), the movable blade (3) being located between the movable convex strip (21) and the sleeve (1) and being capable of correspondingly moving in conjunction with the movable convex strip (21), the movable convex strip (21) cooperating with the movable blade (3) to separate the corresponding sealed chamber (10) into a first movable chamber (101) and a second movable chamber (102) filled with damping oil; when the rotating shaft core (2) rotates counterclockwise relative to the sleeve (1), the movable convex strip (21) and the movable blade (3) are sealed and matched, and the movable convex strip (21) drives the movable blade (3) to rotate accordingly to compress the first movable chamber (101); A connecting groove (22) for cooperating with the end of the static convex strip (11) is provided on the outer wall of the rotating shaft core (2), and the connecting groove (22) is configured to connect the first movable cavity (101) of one sealed cavity (10) with the second movable cavity (102) of another sealed cavity (10) when the rotating shaft core (2) rotates relative to the sleeve (1) to a preset angle range; When the rotating shaft core (2) rotates clockwise relative to the sleeve (1) to reset, a connecting passage (103) for connecting the first active chamber (101) with the second active chamber (102) is formed between the movable convex strip (21) and the movable blade (3); When the seat ring is closed on the toilet, the damping oil inside the buffer is gathered in the first movable chamber. When the seat ring is opened upward, the rotating shaft core is driven to rotate counterclockwise. The damping oil in the first movable chamber is pressurized, so that the first blocking convex strip of the movable blade is closely attached to the moving convex strip of the rotating shaft core to form an oil sealing surface. During the upward turning process of the seat ring from 0 degrees to 40 degrees, the rotating shaft core is buffered by the damping oil to slow down the upward turning speed of the seat ring. During the process of the seat ring turning up from 40 degrees to 70 degrees, the damping oil in the first active chamber flows to the second active chamber through the connecting groove, the rotating shaft core has no buffer or low buffer, the buffer torque of the rotating shaft core becomes weak, and the speed of the seat ring turning up is faster than the speed of the seat ring from 40 degrees to 70 degrees; During the process of the seat ring turning up from 70 degrees to 110 degrees, the connecting groove (22) and the static convex strip (11) are staggered, the first movable chamber is isolated from the second movable chamber and a seal is formed again, so that the buffer torque of the rotating shaft core is increased and the seat ring turns up slowly; the damping oil in the first movable chamber flows to the second movable chamber; When the seat ring is closed by external force, the rotating shaft core rotates clockwise, and the damping oil in the second movable chamber flows to the first movable chamber through the connecting groove and the connecting channel.
2. The flip-up buffer according to claim 1, characterized in that The connecting groove (22) is further configured such that when the rotating shaft core (2) continues to rotate relative to the sleeve (1) to isolate the connecting groove (22) from the first active cavity (101) or the second active cavity (102), the first active cavity (101) of one sealed cavity (10) and the second active cavity (102) of another sealed cavity (10) are isolated from each other.
3. The flip-up buffer according to any one of claims 1 to 2, characterized in that The movable blade (3) comprises a blade body (31) whose outer wall is sealedly connected to the inner wall of the sleeve (1), and the inner wall of the blade body (31) is provided with a first blocking convex strip (32) which blocks and seals with the movable convex strip (21) when the rotating shaft core (2) rotates counterclockwise relative to the sleeve (1), and a second blocking convex strip (33) which blocks and seals with the movable convex strip (21) when the rotating shaft core (2) rotates clockwise relative to the sleeve (1) to reset.
4. The flip-up buffer according to claim 3, characterized in that The connecting passage (103) comprises a connecting hole provided on the second blocking ridge (33) for connecting the second active cavity (102) with the inner cavity of the active blade (3).
5. The flip-up buffer according to claim 4, characterized in that A locking structure (4) is provided between the movable convex strip (21) and the first blocking convex strip (32) and / or the second blocking convex strip (33), and the locking structure (4) comprises a locking recess provided on the movable convex strip (21) for locking with the first blocking convex strip (32) and / or the second blocking convex strip (33).
6. The flip-up buffer according to any one of claims 1 to 2, characterized in that The sleeve (1) is open at one end and blocked at the other end. The open end of the sleeve (1) is provided with a gland (5) for preventing the rotating shaft core (2) from separating from the sleeve (1). The gland (5) is provided with a gland through hole (51) for the outer end of the rotating shaft core (2) to pass through and be exposed to the outside.
7. The flip-up buffer according to claim 6, characterized in that A positioning structure (6) is provided between the rotating shaft core (2) and the blocking end of the sleeve (1), the positioning structure (6) comprising a positioning hole (61) provided on the blocking end of the sleeve (1) and a positioning protrusion (62) provided on the inner end of the rotating shaft core (2) and capable of being inserted and positioned in the positioning hole (61).
8. The flip-up buffer according to claim 7, characterized in that A sealing ring (7) is provided between the inner wall of the gland through hole (51) and the outer wall of the rotating shaft core (2), and / or a gasket (8) is connected to the inner end of the gland (5) for engaging with a limiting convex ring on the outer wall of the rotating shaft core (2).