Rotary buffer capable of enabling toilet lid to be turned over and kept upright

Abstract

The rotary buffer comprises an oil cavity cylinder, a shaft core and a pressing cover, a metal ring located in a shaft hole of the pressing cover is installed at the tail end of a flat shaft in a shape-following mode, a receding groove and a limiting groove are formed in the hole wall of the shaft hole in the rotating direction of the shaft core, and the receding groove and the limiting groove are used for receding an outwards-protruding elastic piece on the metal ring. A stop block is arranged at the interval of the receding groove and the limiting groove. According to the rotary buffer, extremely simple parts are used, the structure of an existing rotary buffer is utilized, and the elastic piece used for being elastically positioned with the gland when the cover plate turns over is simply fixed to the matched rotating part of the gland and the shaft core and the flat shaft of the shaft core, so that when the cover plate is turned over by more than 90 degrees without damping, the cover plate can be prevented from falling off. The toilet cover plate fixing device is low in manufacturing cost, reliable and practical, an elastic pin mechanism does not need to be installed on the fixing shaft or the hinged support, the production and assembly process of the toilet cover plate can be greatly simplified, the production efficiency of the toilet cover plate is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to a rotary buffer which can keep a toilet cover flipped upright. Background Art

[0002] When the toilet cover adopts a pivot hinge, its upper cover and seat ring sleeve are coaxially connected in series through a fixed shaft and a damping shaft. For example, a toilet seat ring flip-up temporary limit mechanism disclosed in Chinese utility model patent (CN204016169U) has a spring mechanism 40 that is arranged on the fixed shaft 20 instead of the rotary buffer 50. When the seat ring 10 is flipped over 90 degrees to the upright state, the bead 410 of the spring mechanism 40 slides from the inner wall surface of the seat ring sleeve 11 into the slot 110 and is elastically positioned, so that the seat ring is self-supporting and will not rebound and fall. For another example, the Chinese patent (CN204016169U) discloses a cover plate with a temporary positioning mechanism to prevent tipping down. When the toilet cover plate is hinged with a support plate seat, a projection that can be axially retracted is arranged on the axial part of the sleeve of the hinge seat 10, and a clearance groove and a limit groove that cooperate with the projection are arranged on the inner side of the cover plate sleeve in the rotational direction. There is a stopper between the clearance groove and the limit groove to drive the projection to retract. When the cover plate is flipped up and erected, the projection extends into the limit groove and is blocked by the stopper in its reverse rotation direction, thereby realizing the self-supporting and anti-tip-down function of the cover plate. However, the problems existing in this anti-tip-down structure of the toilet cover plate are as follows:

[0003] 1. The pin mechanism consisting of a marble and a spring is required. When the cover is matched, the marble and the spring need to be assembled on the fixed shaft or hinge seat in advance. The assembly work is time-consuming and labor-intensive, which will increase the manufacturing cost of the cover and is not conducive to the market competitiveness of the product.

[0004] 2. It is necessary to manufacture an output flat shaft with a rotating buffer that rotates to an elastic positioning position when the cover is opened to prevent the cover from accidentally falling off. In this way, the assembly structure of the support shaft hinge or the hinge seat cover hinge is simplified and the production efficiency of the cover is improved. Utility Model Content

[0005] The utility model provides a rotary buffer which can keep a toilet cover turned upright, and can effectively solve the above problem.

[0006] The utility model is achieved in this way:

[0007] A rotary buffer capable of keeping a toilet lid upright comprises an oil chamber, an axis core and a gland, wherein a flange ring is provided on the circumference of the axis core to be rotatably matched with the inner opening of the oil chamber, a flat shaft is provided at the front end to be sleeved in the upper cover shaft sleeve or the seat ring shaft sleeve, and the gland is press-fitted at the inner opening of the oil chamber; the characteristic is that a metal ring is arranged in the shaft hole of the gland at the end of the flat shaft, and a clearance groove and a limit groove are provided on the wall of the shaft hole along the axis core in a rotational direction to allow the outer protruding spring sheet on the metal ring to make way, and a stopper is provided at the interval between the clearance groove and the limit groove;

[0008] When the cover is opened, the rotating shaft core drives the protruding spring piece on the metal ring to pass through the stopper from the clearance groove and enter the limiting groove. The stopper blocks the protruding spring piece in reverse direction to elastically limit the cover in an open upright state.

[0009] As a further improvement, the metal ring further comprises two arc segments arranged radially symmetrically and an insert segment connected to the same end of the two arc segments, one end of the outwardly protruding spring piece is fixedly connected to the end of one arc segment, and the other end forms an elastic gap with the end of the adjacent arc segment.

[0010] As a further improvement, a conformal convex ring is integrally formed at the end of the flat shaft for the inner wall of the metal ring to contact.

[0011] As a further improvement, the root of the conforming convex ring is provided with a convex ring rotatably matched with the shaft hole, and the convex ring axial surface is provided with a clamping block which is gap-matched with the conforming convex ring to clamp the insert segment between the two.

[0012] As a further improvement, the gap between the clamping block and the conformal convex ring is a clamping gap, and the insert segment is axially inserted into the clamping gap for fixation.

[0013] As a further improvement, the insert segment is provided with at least one anti-slip clamp tilted toward the axis of the flat shaft.

[0014] The beneficial effects of the utility model are:

[0015] The utility model uses extremely simple parts and utilizes the structure of the existing rotary buffer. In the matching rotating part of the pressure cover and the shaft core, a spring piece is simply fixed on the flat shaft of the shaft core for elastic positioning with the pressure cover when the cover plate is flipped up. When the rotary buffer flips up more than 90 degrees without damping, the shaft core is elastically positioned and braked by the spring piece and the pressure cover, so that the cover plate will not accidentally fall off. The utility model has low manufacturing cost, is reliable and practical, and because there is no need to install a spring pin mechanism on the fixed shaft or the hinge seat, the production and assembly process of the toilet cover can be greatly simplified, the production efficiency of the toilet cover can be improved, and the production cost can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional assembly structure exploded view of the overall structure of the utility model.

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the metal ring of the utility model.

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the gland of the utility model.

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the utility model in which the metal ring is fixed on the flat shaft Figure 1 .

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the utility model in which the metal ring is fixed on the flat shaft Figure 2 .

[0021] Figure 6 It is a structural stereogram of the damper of the utility model.

[0022] Figure 7 It is a structural schematic diagram of the utility model in which the flat shaft rotates counterclockwise until the outwardly convex elastic piece enters the limiting groove and is limited by the stop block.

[0023] Figure 8 It is a structural schematic diagram of the utility model in which the flat shaft rotates clockwise to make the outer protruding spring piece pass over the stopper and be avoided by the giving way groove.

[0024] The accompanying drawings are marked as follows:

[0025] 10. Metal ring; 11. Outwardly convex spring piece; 12. Arc section; 13. Insert section; 14. Anti-slip card; 101. Elastic gap; 20. Pressure cover; 201. Shaft hole; 21. Displacement groove; 22. Limit groove; 23. Block; 30. Shaft core; 31. Flat shaft; 32. Conformal convex ring; 33. Flange ring; 40. Oil cavity cylinder; 41. Inner cavity opening; 50. Convex ring; 51. Clamp block; 501. Clamping gap. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0027] like Figure 1 and Figures 4 to 8As shown in the figure, a rotary buffer for keeping the toilet lid turned up and standing includes an oil chamber cylinder 40, a shaft core 30, and a gland 20. A flange ring 33 that is rotationally engaged with the inner cavity opening 41 of the oil chamber cylinder 40 is provided on the circumferential side of the shaft core 30, and a flat shaft 31 sleeved in an upper cover shaft sleeve or a seat ring shaft sleeve is provided at the front end. The gland 20 is press-fitted at the inner cavity opening 41 of the oil chamber cylinder 40. A metal ring 10 is installed conformally at the end of the flat shaft 31 and is located in the shaft hole 201 of the gland 20. A relief groove 21 and a limit groove 22 for making way for the outwardly convex elastic piece 11 on the metal ring 10 are provided on the wall of the shaft hole 201 along the upward rotation of the shaft core 30. A stop block 23 is provided at the interval between the relief groove 21 and the limit groove 22. When the cover plate (not shown in the figure) is opened, the outwardly convex elastic piece 11 on the metal ring 10 driven by the rotating shaft core 30 crosses the stop block 23 from the relief groove 21 and enters the limit groove 22, and the stop block 23 reversely blocks the outwardly convex elastic piece 11 to elastically limit the cover plate in the turned-up and standing state.

[0028] The structures of the components of the present invention will be described separately below.

[0029] As shown in Figure 1 , Figure 5 and Figure 7 , Figure 8 , the metal ring 10 further includes two arc-shaped segments 12 arranged radially symmetrically and an insert segment 13 connected to the same end of the two arc-shaped segments 12. One end of the outwardly convex elastic piece 11 is fixedly connected to the end of one arc-shaped segment 12, and the other end forms an elastic deformation gap 101 with the end of the adjacent arc-shaped segment 12. A conforming convex ring 32 for the inner wall of the metal ring 10 to contact is integrally formed at the end of the flat shaft 31. A convex edge ring 50 that is rotationally engaged with the shaft hole 201 is provided at the root of the conforming convex ring 32. A clamping block 51 that is in clearance fit with the conforming convex ring 32 to clamp the insert segment 13 between the two is provided on the axial surface of the convex edge ring 50. The gap between the clamping block 51 and the conforming convex ring 32 is a clamping gap 501, and the insert segment 13 is axially clamped and fixed in the clamping gap 501.

[0030] As shown in Figure 1 , Figure 2 , Figure 5 and Figure 6 , Figure 7 , at least one anti-detachment clamp 14 that warps towards the axis direction of the flat shaft 31 is provided on the insert segment 13. In this embodiment, the number of the anti-detachment clamps 14 is taken as two as an example, and the two anti-detachment clamps 14 are arranged in an array along the length direction of the insert segment 13. With such a design, when the metal ring 10 is sleeved on the flat shaft 31, the anti-detachment clamps 14 of the insert segment 13 are in a warped state, so that the installation space of the insert segment 13 in the radial direction exceeds the width of the clamping gap 501 formed between the clamping block 51 and the conforming convex ring 32. In this way, when the insert segment 13 is axially clamped into the clamping gap 501, an interference expansion and tight connection state will be formed, greatly improving the reliability and stability of the installation of the metal ring 10 on the flat shaft 31.

[0031] It should be noted that, as Figure 7 shown, when the cover plate is opened to the upright state, the outwardly convex elastic piece 11 will move in the circumferential direction along with the shaft core 30 in the relief groove 21, and the rotation process of the cover plate with an upward turning angle less than 90 degrees is relatively labor-saving; when the outwardly convex elastic piece 11 passes over the stopper 23 and enters the limiting groove 22, the outwardly convex elastic piece 11 is pressed and elastically retracts inward, and when the outwardly convex elastic piece 11 and the stopper 23 are in the same circumferential position, the retraction amount of the outwardly convex elastic piece 11 reaches the maximum; when the outwardly convex elastic piece 11 completely enters the limiting groove 22, the upward turning angle of the cover plate is greater than 90 degrees, and the outwardly convex elastic piece 11 elastically returns to its original position under the action of elastic force, and the falling-back outwardly convex elastic piece 11 is reversely blocked by the stopper 23 to elastically limit the cover plate in the upright state.

[0032] The assembly of the present invention will be described below.

[0033] A gasket ring (not shown in the figure) is sleeved on the outer ring surface of the flange ring 33, and a sealing ring (not shown in the figure) for sealing the inner cavity opening 41 of the flange ring 33 and the oil chamber cylinder 40 is sleeved on the circumferential side of the shaft core 30. Then, the metal ring 10 is aligned and sleeved on the outside of the conforming convex ring 32, so that the insert section 13 is snapped into the gap 501 and the outwardly convex elastic piece 11 is located in the relief groove 21. Finally, the gland 20 is pressed into the inner cavity opening 41 and fixed by wave soldering to complete the rapid assembly of this application.

[0034] The working principle of the present invention will be described in detail below in combination with Figures 1 to 8 to illustrate how to open and close the cover plate by applying the present invention.

[0035] When the cover plate is opened to the upright state, the rotating shaft core 30 drives the outwardly convex elastic piece 11 to pass over the stopper 23 from the relief groove 21, and the outwardly convex elastic piece 11 is pressed and elastically retracts inward. When the opening angle of the cover plate is greater than 90 degrees, the outwardly convex elastic piece 11 completely enters the limiting groove 22 and elastically returns to the initial state. After removing the force applied to the cover plate, under the action of gravity, the cover plate rotates counterclockwise until the outwardly convex elastic piece 11 enters the limiting groove 22 and is limited and blocked by the stopper 23, so that the cover plate is circumferentially limited in the upright state and will not naturally fall back.

[0036] During the process of closing the cover plate, the cover plate falls back and drives the shaft core 30 to rotate relative to the gland 20, so that the outwardly convex elastic piece 11 is elastically deformed and pressed to pass over the stopper 23 and enters the limiting groove 22 from the relief groove 21 to make way for the outwardly convex elastic piece 11. At this time, the cover plate and the upward turning angle are less than 90 degrees. With the action of gravity, the cover plate can naturally fall back to the closed state.

[0037] The above embodiments are only for illustrating the present invention and are not intended to limit the present invention. Those of ordinary skill in the art can make various transformations or changes without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also fall within the scope of the present invention, which is defined by each claim.

Claims

1. A rotary buffer capable of keeping a toilet lid upright, comprising an oil chamber cylinder (40), a shaft core (30) and a gland (20), wherein the shaft core (30) is provided with a flange ring (33) rotatably fitted in an inner cavity opening (41) of the oil chamber cylinder (40) on its circumferential side, a flat shaft (31) sleeved in an upper cover sleeve or a seat ring sleeve on its front end, and the gland (20) is press-fitted at the inner cavity opening (41) of the oil chamber cylinder (40); characterized in that: A metal ring (10) is installed at the end of the flat shaft (31) and is located in the shaft hole (201) of the pressure cover (20). A clearance groove (21) and a limit groove (22) are provided on the wall of the shaft hole (201) along the shaft core (30) to allow the outer protruding spring sheet (11) on the metal ring (10) to make way for the clearance groove (21) and the limit groove (22). A stopper (23) is provided at the interval between the clearance groove (21) and the limit groove (22). When the cover is opened, the rotating shaft core (30) drives the protruding spring piece (11) on the metal ring (10) to pass through the stopper (23) from the clearance groove (21) and enter the limiting groove (22), and the stopper (23) blocks the protruding spring piece (11) in the reverse direction, so as to elastically limit the cover in the opened upright state.

2. A rotary buffer capable of keeping a toilet lid upright as claimed in claim 1, characterized in that: The metal ring (10) further comprises two arc segments (12) arranged radially symmetrically and an insert segment (13) connected to the same end of the two arc segments (12); one end of the outwardly convex elastic sheet (11) is fixedly connected to the end of one arc segment (12), and the other end forms an elastic gap (101) with the end of an adjacent arc segment (12).

3. A rotary buffer capable of keeping a toilet lid upright as claimed in claim 1, characterized in that: A conformal convex ring (32) is integrally formed at the end of the flat shaft (31) for contact with the inner wall of the metal ring (10).

4. A rotary buffer capable of keeping a toilet lid upright as claimed in claim 3, characterized in that: The root of the conforming convex ring (32) is provided with a convex ring (50) rotatably matched with the shaft hole (201), and the axial surface of the convex ring (50) is provided with a clamping block (51) which is loosely matched with the conforming convex ring (32) to clamp the insert section (13) therebetween.

5. A rotary buffer capable of keeping a toilet lid upright as claimed in claim 4, characterized in that: The gap between the clamping block (51) and the conforming convex ring (32) is a clamping gap (501), and the insert section (13) is axially inserted into the clamping gap (501) for fixation.

6. A rotary buffer capable of keeping a toilet lid upright as claimed in claim 1, characterized in that: The insert section (13) is provided with at least one anti-slip clamp (14) which is tilted toward the axial direction of the flat shaft (31).

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