CN101785646B

CN101785646B - Rotary buffer

Info

Publication number: CN101785646B
Application number: CN2010101433331A
Authority: CN
Inventors: 周文辉
Original assignee: Zhongshan Meitu Industry Co ltd
Current assignee: Zhongshan Meitu Industry Co ltd
Priority date: 2010-03-04
Filing date: 2010-03-04
Publication date: 2011-09-21
Anticipated expiration: 2030-03-04
Also published as: CN101785646A

Abstract

The invention discloses a rotary buffer, comprising a cylinder body and an axle core, wherein raised shims are arranged on the inner wall of the cylinder body; a seal cavity is formed between one end of the axle core and the cylinder body after the end of the axle core is arranged in the inner cavity of the cylinder body; the other end of the axle core extends out of the cylinder body; fins with outer walls being tangent to the inner wall of the cylinder body are arranged on the axle core; vanes are arranged between the axle core and the shims; the shims, the vanes and the fins separate the inner cavity of the cylinder body into non-compressed cavities and compressed cavities; damping oil is filled in the non-compressed cavities and the compressed cavities; each vane comprises an arc-shaped main plate and an oil sealing rib plate and an oil unloading rib plate; the oil sealing rib plate and the oil unloading rib plate are respectively arranged in front of and at the back of the arc-shaped main plate; the back of the arc-shaped main plate pushes against the axle core; movement space which is used for the shims to insert and is thicker than the shims is formed between the oil sealing rib plate and the oil unloading rib plate; and a plurality of oil unloading nicks are arranged on the oil unloading rib plate and the arc-shaped main plate. The rotary buffer has good buffering effect, durable vanes, good quality, small machining tolerance and simple structure and is convenient to machine.

Description

Rotary buffer

[technical field]

The present invention relates to a kind of rotary buffer, specifically relate to a kind of use on water closet cover-plate and seat ring and prolong the rotary buffer of its fall time.

[background technology]

At present, the general bearing pin that adopts directly is connected on the cover plate in present lavatory and the seat ring, perhaps adopts spring buffer, use pin shaft structure, can send bigger strike sound when opening, putting down cover plate and seat ring, and adopt spring, easy rust corrosion and damaging.

For addressing the above problem, the manufacturer that has adopts the damping oil buffer, and the damping oil buffer has generally comprised a stack shell and an axle core, and the cover plate in seat lavatory is connected with a core.It is ZL02226427.2 that the applicant has submitted a patent application, the patent No. on March 25th, 2002, and name is called " a kind of adjustable cushion ", and Granted publication day is on February 26th, 2003.In this part patent, have the profile of tooth mouth that is used for emptying on the floor of blade tip, floor is very thin, and long-time the use easily of floor that has the profile of tooth mouth like this damaged, and makes blade lose the effect of cut-out or conducting asphalt channel, constant product quality; Moreover, on the shim of axle core, be provided with step, when step snaps into the blade inboard, form the Oil Guide passage between shim and the blade, the size of Oil Guide passage is all relevant with the size of the height of step and profile of tooth mouth, like this, add man-hour, any one the size that scale error all can influence the Oil Guide passage appears in step and profile of tooth mouth, so mismachining tolerance is big, and processing is inconvenient.

[summary of the invention]

The present invention has overcome the deficiency of above-mentioned technology, provides that a kind of good buffer effect, blade are durable, good product quality, rotary buffer that mismachining tolerance is little, easy to process, simple in structure.

For achieving the above object, the present invention has adopted following technical proposal:

Rotary buffer, include stack shell 1 and axle core 2, on stack shell 1 inwall, be provided with the shim 3 of projection, described axle core 2 one ends are contained in stack shell 1 inner chamber and afterwards and between the stack shell 1 form annular seal space, axle core 2 other ends stretch out outside the stack shell 1, on axle core 2, also be provided with the tangent fin 4 of outer wall and stack shell 1 inwall, between axle core 2 and shim 3, be provided with blade 5, described shim 3, blade 5 and fin 4 are divided into not pressurized chamber 20 and pressurized chamber 30 with stack shell 1 inner chamber, in that damping oil all is not equipped with in pressurized chamber 20 and pressurized chamber 30, before described blade 5 includes arc mainboard 51 and is arranged on arc mainboard 51, the oil sealing floor 52 of back, emptying floor 53, described arc mainboard 51 backs withstand on the core 2, oil sealing floor 52, form between the emptying floor 53 for shim 3 and insert and greater than the activity space of shim 3 thickness, on emptying floor 53 and arc mainboard 51, be provided with a plurality of emptying breach 6, when described axle core 2 clockwise rotates, blade 5 emptying floors 53 withstand on the side of shim 3, common formation Oil Guide passage 7 between blade 5 and shim 3 and the axle core 2; When described axle core 2 rotated counterclockwise, blade 5 oil sealing floors 53 withstood on the another side of shim 3 the Oil Guide passage are shut.

Rotary buffer as mentioned above, described shim 3 is two, they are distributed on stack shell 1 inwall symmetrically; Fin 4 also is two, and they also are distributed on a core 2 outer walls symmetrically, and blade 5 also is two; Described fin 4, blade 5 and shim 3 are divided into 2 not pressurized chamber and 2 pressurized chambeies with stack shell 1 inner chamber.

Rotary buffer as mentioned above also is provided with convection current slit 9 at the axial end portion of stack shell 1 and axle core 2, and convection current slit 9 not pressurized chamber 20 and pressurized chamber 30 is communicated with, and the channel sized in convection current slit 9 is much smaller than Oil Guide passage 7.

Compared with prior art, the invention has the beneficial effects as follows: 1, blade of the present invention includes the arc mainboard and is arranged on oil sealing, the emptying floor on the forward and backward limit of arc mainboard, form activity space between oil sealing, the emptying floor for the fin axial rotation, on emptying floor and arc mainboard, be provided with a plurality of emptying breach, because the arc mainboard is durable, all are not easy fracture, good product quality in the long-time process of using.

2, the size of Oil Guide passage is only relevant with the size of emptying breach, therefore, adds man-hour, and the size of breach controlled well is just passable, and mismachining tolerance is little, and is easy to process.

[description of drawings]

Fig. 1 is an explosive view of the present invention;

Fig. 2 is a longitudinal sectional drawing of the present invention;

Fig. 3 is the structure chart of the B-B from Fig. 2 when cutting the sealing of Oil Guide passage open;

Fig. 4 is the structure chart of the B-B from Fig. 2 when cutting the Oil Guide passage open and opening.

[specific embodiment]

Be described in further detail below in conjunction with accompanying drawing and embodiments of the present invention:

Referring to Fig. 1-4, the present invention is a rotary buffer, include stack shell 1 and axle core 2, on stack shell 1 inwall, be provided with the shim 3 of projection, seal after described core 2 one ends are contained in stack shell 1 inner chamber and between the stack shell 1, axle core 2 other ends stretch out outside the stack shell 1, on axle core 2, also be provided with the tangent fin 4 of outer wall and stack shell 1 inwall, between axle core 2 and shim 3, be provided with blade 5, described shim 3, blade 5 and fin 4 are divided into not pressurized chamber 20 and pressurized chamber 30 with stack shell 1 inner chamber, in that damping oil all is not equipped with in pressurized chamber 20 and pressurized chamber 30, before described blade 5 includes arc mainboard 51 and is arranged on arc mainboard 51, the oil sealing of back, emptying

floor

52,53, arc mainboard 51 backs withstand on the core 2, oil sealing, emptying floor 52, form between 53 for shim 3 and insert and greater than the activity space of shim 3 thickness, on emptying floor 53 and arc mainboard 51, be provided with a plurality of emptying breach 6, when described axle core 2 clockwise rotates, blade 5 emptying floors 53 withstand on the side of shim 3, common formation Oil Guide passage 7 between blade 5 and shim 3 and the axle core 2, this Oil Guide passage 7 is pressurized

chamber

20 and 30 connections of pressurized chamber; When described axle core 2 rotated counterclockwise, blade 5 oil sealing floors 53 withstood on the another side of shim 3 the Oil Guide passage are shut, and are not communicated with between pressurized chamber 20 and the pressurized chamber 30.

Described shim 3 is two, and they are distributed on stack shell 1 inwall symmetrically, and two shims 3 are divided into two chambeies with stack shell 1 inner chamber; Fin 4 also is two, and they also are distributed on a core 2 outer walls symmetrically, and blade 5 also is two; Arc mainboard 51 outer walls and stack shell 1 inwall of described blade 5 are tangent, and described fin 4, blade 5 and shim 3 are divided into 2 not pressurized

chamber

20 and 2 pressurized chambeies 30 again with stack shell 1 inner chamber.

Axial end portion at stack shell 1 and axle core 2 also is provided with convection current slit 9, and convection current slit 9 is pressurized

chamber

20 and 30 connections of pressurized chamber not, and the channel sized in convection current slit 9 is much smaller than Oil Guide passage 7.

The novel operation principle of this use is as follows: when the cover plate in seat lavatory or seat ring are started by the user, axle core 2 is driven to clockwise rotate, one side of the fin 4 of axle core 2 withstands on the emptying floor 53, common formation Oil Guide passage 7 between blade 5 and shim 3 and the axle core 2, at this moment, pressurized chamber 20 interior damping oils can not flow in the pressurized chambeies 30 by Oil Guide passage 7 with by convection current slit 9.When the cover plate in seat lavatory or seat ring are put down by the user, described axle core 2 is driven and is rotated counterclockwise, blade 5 is subjected to the pressure of damping oil, thereby oil sealing floor 53 withstands on the another side of shim 3 the Oil Guide passage is shut, be not communicated with between pressurized chamber 20 and the pressurized chamber 30, damping oil in the pressurized chamber 30 can't flow into not in the pressurized chamber 20 by Oil Guide passage 7, and can only flow into not in the pressurized chamber 20 by convection current slit 9, because convection current slit 9 relative Oil Guide passages 7 are much smaller, therefore, damping oil flow into not from flowing into pressurized chamber 30 that the speed in pressurized chamber 20 also will compare slowly, can make that like this cover plate in a lavatory or seat ring fall lentamente.

Claims

1. rotary buffer, include stack shell (1) and axle core (2), on stack shell (1) inwall, be provided with the shim (3) of projection, described axle core (2) one ends are contained in stack shell (1) inner chamber and afterwards and between the stack shell (1) form annular seal space, axle core (2) other end stretches out outside the stack shell (1), it is characterized in that, on axle core (2), also be provided with the tangent fin (4) of outer wall and stack shell (1) inwall, between axle core (2) and shim (3), be provided with blade (5), arc mainboard (51) outer wall and stack shell (1) inwall of blade (5) are tangent, described shim (3), blade (5) and fin (4) are divided into not pressurized chamber (20) and pressurized chamber (30) with stack shell (1) inner chamber, in not pressurized chamber (20) and pressurized chamber (30) damping oil is housed all, described blade (5) includes arc mainboard (51) and is arranged on arc mainboard (51) preceding, the oil sealing of back, emptying floor (52,53), arc mainboard (51) back withstands on the core (2), oil sealing, emptying floor (52,53) form between for shim (3) and insert and greater than the activity space of shim (3) thickness, on emptying floor (53) and arc mainboard (51), be provided with a plurality of emptying breach (6), described axle core (2) is when clockwise rotating, blade (5) emptying floor (53) withstands on the side of shim (3), common formation Oil Guide passage (7) between blade (5) and shim (3) and the axle core (2); Described axle core (2) is when rotating counterclockwise, blade (5) oil sealing floor (53) withstands on the another side of shim (3) the Oil Guide passage is shut, axial end portion at stack shell (1) and axle core (2) also is provided with convection current slit (9), convection current slit (9) not pressurized chamber (20) and pressurized chamber (30) is communicated with, and the size of convection current slit (9) is much smaller than Oil Guide passage (7).

2. according to the described rotary buffer of claim 1, it is characterized in that described shim (3) is two, they are distributed on stack shell (1) inwall symmetrically; Fin (4) also is two, and they also are distributed on a core (2) outer wall symmetrically, and blade (5) also is two; Described fin (4), blade (5) and shim (3) are divided into 2 not pressurized chamber and 2 pressurized chambeies with stack shell (1) inner chamber.