CN205031156U - Apron slowly falls in damping machanism and closestool that has this damping machanism with adjust chamber - Google Patents

Abstract

The utility model discloses a have the damping machanism who adjusts the chamber, its including fill the casing that has the damping oil and with the casing in the sealed normal running fit's of oil pocket pivot, and general after casing and the pivot assembly oil pocket in the casing is divided into at least one a high -pressure oil pocket and an at least low pressure oil pocket, still including setting up the end part of the housing's regulation chamber, the one end that should adjust the chamber communicates high pressure oil pocket and low pressure oil pocket, the other end dams and detains sealed cooperation with one, should dam the knot and the inner wall in regulation chamber between form the two at least pressure regulating clearances that can make damping pressure change step by step to making damping pressure adjustment precision higher, adjusting sensitivelyer, realize the slowly accurate control of the time of falling of lavatory lid, simple structure not only crosses moreover that the oil action is steady, the effect is better.

Description

With regulating the damping mechanism in chamber and having that the toilet of this damping mechanism is slow falls cover plate

Technical field

The utility model relates to bathroom technical field, particularly relates to a kind of with regulating the damping mechanism in chamber and having that the toilet of this damping mechanism is slow falls cover plate.

Background technology

Existing adjustable damping mechanism, the such as publication number pan closet lid buffer that a kind of torsion is adjustable disclosed in the Chinese utility model patent of CN203234669U, the damping mechanism of this class formation is provided with the oily passage of the adjustable mistake of size, is realized torsion regulated by the size of the adjusted oily passage of rotary screw.

But screw rotates a bit of distance in such damping mechanism, the size variation crossing oily passage is just very large, and damping pressure cannot change step by step, thus causes degree of regulation poor, regulates insensitive, higher to the requirement of manufacturing.

Utility model content

The utility model is for solving the problem, provide a kind of with regulating the damping mechanism in chamber and having that the toilet of this damping mechanism is slow falls cover plate, thus adjustment damping size can be carried out according to different demands, and can adjust accurately delaying cover plate falls and cover speed, regulate sensitive, compatibility is stronger.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of damping mechanism with regulating chamber, it comprises the housing (10) being filled with damping oil and the rotating shaft (20) coordinated with the oil pocket sealed rotational in housing (10), and the oil pocket in described housing (10) is divided at least one high-voltage oil cavity (11) and at least one low pressure oil pocket (12) after assembling by housing (10) and rotating shaft (20), also comprise the adjustment chamber (13) being arranged on described housing (10) end, the one end in this adjustment chamber (13) is communicated with described high-voltage oil cavity (11) and low pressure oil pocket (12), the other end and one dams and detains (40) and be sealed and matched, the at least two pressure regulation gaps that damping pressure can be made to change step by step are formed between the inwall in this dam button (40) and described adjustment chamber (13).

Preferably, the described button (40) that dams is provided with slotting axle (43), and on the end of housing (10), be provided with the jack (16) arranged that to communicate with described adjustment chamber (13), insert axle (43) through described jack (16) and stretch into regulate and seal grafting with described adjustment chamber (13) in chamber (13) and fix.

Preferably, the end of described slotting axle (43) is provided with the projection (431) stretching into and regulate chamber (13) further, described adjustment chamber (13) comprises the shut-off chamber (131) and adapter cavity (132) that are interconnected further, described projection (431) stretches in shut-off chamber (131), and the side face of this projection (431) and end face are respectively and form the first gap (41) and the second gap (42) between the inwall of described shut-off chamber (131).

Preferably, described pressure regulation gap comprises the side face of described projection (431) and end face respectively and described first gap (41) formed between the inwall of described shut-off chamber (131) and the second gap (42).

Preferably, the inwall that the side face of described projection (431) is formed slopely the conical surface and/or described shut-off chamber (131) is vertically formed slopely the conical surface vertically, by the axial stroke of the button (40) that dams described in regulating to change the size in described pressure regulation gap.

Preferably, described adjustment chamber (13) also comprises the second shut-off chamber (131 ') arranged that coaxially to communicate with described shut-off chamber (131), the end of described projection (431) is extended with the second projection (431 ') matched with the second shut-off chamber (131 ') inwall further, the third space (49) that described pressure regulation gap comprises described first gap (41) and formed between described second projection (431 ') side face and described second shut-off chamber (131 ').

Preferably, the inwall that the side face of described projection (431) and the second projection (431 ') is formed slopely the conical surface and/or described shut-off chamber (131) and the second shut-off chamber (131 ') all is vertically formed slopely the conical surface all vertically, by the axial stroke of the button (40) that dams described in regulating to change the size in described pressure regulation gap.

Preferably, on the diapire of described housing (10), corresponding high-voltage oil cavity (11) and low pressure oil pocket (12) place respectively offer oil-through hole (15), and described high-voltage oil cavity (11) is communicated with described adjustment chamber (13) by described oil-through hole (15) with low pressure oil pocket (12).

Preferably, also comprise the set screw (46) that be fixedly connected with relative to described housing (10) and the adjusting nut (47) with described set screw (46) threaded engagement, described in dam the threaded engagement axial limiting of button (40) by described set screw (46) and adjusting nut (47) on described housing (10) to regulate the relative axial position of described dam button (40) and housing (10).

Preferably, the described button (40) that dams is provided with snap fit (44), and on the sidewall of housing (10), being provided with hole clipping (17)/draw-in groove, hole clipping (the 17)/pocket edges clamping of snap fit (44) and housing (10) sidewall detain (40) to dam described in preventing and described housing (10) departs from.

In addition, the utility model additionally provides that a kind of toilet is slow falls cover plate, it comprise described in above-mentioned any one with the damping mechanism regulating chamber.

The beneficial effects of the utility model are:

(1), the utility model is by being arranged on the adjustment chamber of described shell end, the one end in this adjustment chamber is communicated with described high-voltage oil cavity and low pressure oil pocket, the other end and one button that dams is sealed and matched, the at least two pressure regulation gaps that damping pressure can be made to change step by step are formed between the inwall in this dam button and described adjustment chamber, thus make damping pressure degree of regulation higher, regulate sensitiveer, react quicker, the accurate control that lavatory lid delays the time of falling can be realized, not only structure is simple, and crosses oily stable action, better effects if;

(2), regulate chamber to comprise shut-off chamber and adapter cavity further, make oil pressure degree of regulation higher;

(3), by the threaded engagement of adjusting nut and set screw regulate described dam button and the relative axial position of housing, regulate more convenient, more accurate;

(4), the dam slotting axle of button and the jack of housing seals grafting and fixes, only the projection inserted on axle stretches into shut-off chamber, the side face of this projection and end face are respectively and form the first gap and the second gap between the inwall of described shut-off chamber, pressure regulation gap comprises the first gap and the second gap, structure is simple, and oil pressure regulates more accurate.

Accompanying drawing explanation

Accompanying drawing described herein is used to provide further understanding of the present utility model, forms a part of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:

Fig. 1 is the decomposition texture schematic diagram of the utility model with the damping mechanism embodiment 1 in adjustment chamber;

Fig. 2 crosses oil condition sectional view when to be the utility model dam with the part of the damping mechanism embodiment 1 regulating chamber;

Fig. 3 is the structure for amplifying schematic diagram at the A place of Fig. 2;

Fig. 4 is the utility model with crossing oil condition sectional view when regulating the damming completely of the damping mechanism embodiment 1 in chamber;

Fig. 5 be embodiment 1 dam button structural representation;

Fig. 6 crosses oil condition sectional view when to be the utility model dam with the part of the damping mechanism embodiment 2 regulating chamber;

Fig. 7 is the structure for amplifying schematic diagram at the B place of Fig. 6;

In figure:

10-housing; 11-high-voltage oil cavity; 12-low pressure oil pocket; 13-regulates chamber; 131-shut-off chamber; 131 '-the second shut-off chamber; 132-adapter cavity; 15-oil-through hole; 16-jack; 17-hole clipping;

20-rotating shaft; 21-fixed oily passage; 22-flange;

30-plectrum;

40-dams button; 41-first gap; 42-second gap; 43-inserts axle; 431-projection; 431 '-the second projection; 44-snap fit; 45-sealing ring; 46-set screw; 47-adjusting nut; 49-third space;

50-gland.

Detailed description of the invention

In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearly, understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.

Embodiment 1;

As shown in Figures 1 to 5, a kind of damping mechanism with regulating chamber of the present utility model, it comprises the housing 10 being filled with damping oil and the rotating shaft 20 coordinated with the oil pocket sealed rotational in housing 10, and the oil pocket in described housing 10 is divided at least one high-voltage oil cavity 11 and at least one low pressure oil pocket 12 after assembling by housing 10 and rotating shaft 20, also comprise the adjustment chamber 13 of the end being arranged on described housing 10, this one end, adjustment chamber 13 is communicated with high-voltage oil cavity 11 and low pressure oil pocket 12, the other end and one button 40 that dams is sealed and matched, the at least two pressure regulation gaps that damping pressure can be made to change step by step are formed between the inwall in this dam button 40 and described adjustment chamber 13.

As shown in Figure 1, the present embodiment also comprises the set screw 46 that be fixedly connected with relative to described housing 10 and the adjusting nut 47 with described set screw 46 threaded engagement, described in dam the threaded engagement axial limiting of button 40 by described set screw 46 and adjusting nut 47 on described housing 10 to regulate the relative axial position of described dam button 40 and housing 10; And, the described button 40 that dams is provided with the perforation of passing for set screw 46, described housing 10 is provided with groove, the head of set screw 46 is fixedly arranged in groove, the threaded portion of set screw 46 is passed the perforation of the described button 40 that dams and is threaded with adjusting nut 47, and the axial location of adjusting nut 47 in set screw 46 is the axial limiting position of adjusting nut 47 to the button 40 that dams.Or, the present embodiment also can not adopt set screw 46 and adjusting nut 47, and with regulating buckle (not shown) and regulating draw-in groove (not shown) to dam button 40 axial limiting on described housing 10 and the relative axial position of adjustable dam button 40 and housing 10.

As shown in Figure 1 and Figure 5, the described button 40 that dams is provided with snap fit 44, the sidewall of described housing 10 is provided with hole clipping 17 or draw-in groove, the hole clipping 17 of snap fit 44 and housing 10 sidewall or pocket edges clamping depart from described housing 10 with the button 40 that dams described in preventing, the present embodiment is the hole clipping 17 being provided with madial wall and the lateral wall running through housing 10 on the housing 10, snap fit 44 is from the madial wall of housing 10 and hole clipping 17 clamping, and axially formed the button 40 that dams and carry out spacing, the button 40 that prevents from damming deviates from housing 10.Further, the described button 40 that dams is provided with slotting axle 43, and on the end of housing 10, be provided with the jack 16 arranged that to communicate with described adjustment chamber 13, insert axle 43 through described jack 16 and stretch into regulate in chamber 13 with regulate chamber 13 to seal grafting to fix.Wherein, as shown in Figure 1, insert axle 43 and be provided with annular groove, and on annular groove, be provided with sealing ring 45, slotting axle 43 seals grafting by sealing circle 45 and described adjustment chamber 13 and fixes.Further, the end of described slotting axle 43 is provided with the projection 431 stretching into and regulate chamber 13 further.As shown in Figures 2 to 4, chamber 13 is regulated to comprise the shut-off chamber 131 and adapter cavity 132 that are interconnected further, projection 431 stretches into shut-off chamber 131, in the present embodiment, described adjustment chamber 13 comprises a shut-off chamber 131 and an adapter cavity 132, described projection 431 stretches into shut-off chamber 131, and the side face of this projection 431 and end face are respectively and form the first gap 41 and the second gap 42 between the inwall of described shut-off chamber 131.In the present embodiment, pressure regulation gap comprises the side face of projection 431 and end face respectively and the first gap 41 and the second gap 42 formed between the inwall of described shut-off chamber 131; Or further, the present embodiment can also arrange the 3rd projection (not shown) on the end of slotting axle 43, and the 3rd projection stretches in adapter cavity 132; In addition, the shut-off chamber 131 of the present embodiment and adapter cavity 132 also can be set up in parallel multiple in the radial direction regulating chamber 13, on slotting axle 43, be provided with the quantity projection consistent with shut-off chamber 131 431 accordingly, and whether the 3rd projection be set and several 3rd projection is set and coordinate can select as required with adapter cavity 132; In addition, on the diapire of housing 10, corresponding high-voltage oil cavity 11 and low pressure oil pocket 12 place respectively offer oil-through hole 15, and described high-voltage oil cavity 11 is communicated with described adjustment chamber 13 by described oil-through hole 15 with low pressure oil pocket 12.Specifically, on housing 10 diapire, the oil-through hole 15 at corresponding high-voltage oil cavity 11 place is communicated with shut-off chamber 131 and high-voltage oil cavity 11, and on housing 10 diapire, the oil-through hole 15 at corresponding low pressure oil pocket 12 place is communicated with adapter cavity 132 and low pressure oil pocket 12.

In addition, described rotating shaft 20 is provided with and comprises the axle being positioned at housing 10 oil pocket and the outer shaft stretching out housing 10, and flange 22 is provided with between interior axle and outer shaft, described adjustment chamber 13 is arranged on the first end of housing 10, the button 40 that dams is arranged on and regulates the correspondence position in chamber 13, and is provided with at the second end of housing 10 gland 50 be sealed in by described flange 22 in described housing 10.

In the present embodiment, also comprise the plectrum 30 swinging and be installed in housing 10, the oil pocket in housing 10 is divided into described high-voltage oil cavity 11 and described low pressure oil pocket 12 with the blade in rotating shaft by this plectrum 30.Damping mechanism of the present utility model is except arranging successively from the pressure ports that high-voltage oil cavity 11, oil-through hole 15, adjustment chamber 13, oil-through hole 15 to low pressure oil pocket 12 are formed, what also comprise high-voltage oil cavity 11 described in connection and described low pressure oil pocket 12 fixed oily passage, can ensure the normal work of damping mechanism when regulating chamber 13 to dam completely.This fixed the combination that oily passage can be arranged on any one position following or more than one position: housing 10, rotating shaft 20, plectrum 30, between plectrum 30 and housing 10, between plectrum and rotating shaft 20, between housing 10 and rotating shaft 20; The setting fixing oily passage can ensure that damping mechanism can also continue normal work under adjustment chamber is misused the state of closing completely.In the present embodiment, plectrum 30 swings and is arranged on the inwall of housing 10, and flow with the surperficial disturbance damping oil of fitting of rotating shaft 20, the inwall of described housing 10 is provided with the rib for hinged described plectrum 30, this rib is provided with plectrum groove, plectrum 30 is hubbed in plectrum groove to do and radially wobbles, and form at least one gradual change at described rotating shaft 20 and plectrum 30 cambered surface rotatable engagement and cross oily passage 21, rotating shaft 20 forward or reverse makes plectrum 30 swing by the damping oil in the blade disturbance housing 10 in rotating shaft, plectrum 30 swing can open or close the gradual change be provided with in damping mechanism and cross oily passage 21 to realize crossing oil or excessively oily at a slow speed fast, thus realize the effect of unidirectional damping rotation.Or, on the movable axial plane being arranged on rotating shaft 20 of plectrum 30, and flow with the inner surface of housing 10 disturbance damping oil of fitting, its operation principle basic simlarity.

As shown in Figures 2 and 3 for regulating chamber 13 to be in part current floe condition, outwards adjusting nut 47 is screwed out by operation adjusting nut 47, the button 40 that makes to dam relatively housing 10 outwards moves axially, the projection 431 of slotting axle 43 end of button 40 of damming defines described second gap 42 with the end face of shut-off chamber 131, thus open shut-off chamber 131, damping oil enters the second gap 42 of shut-off chamber 131 by oil-through hole 15 from high-voltage oil cavity 11, and enter adapter cavity 14 from the first gap 41 of shut-off chamber 131, then low pressure oil pocket is entered from adapter cavity 14 by oil-through hole 15, thus form a pressure ports.Now, damping mechanism carried out oil mainly through above-mentioned pressure ports and the described combination fixing oily passage.

During adjustment, in the outside moving process of the button 40 that dams, when projection 431 end face to be less than projection 431 side face to the first gap 41 of shut-off chamber 131 sidewall to gap i.e. second gap 42 of the end wall of shut-off chamber 131, now the size in the second gap 42 controls the speed crossing speed oil when damping mechanism damping works, be specially, it is faster that second gap 42 is more bigger than speed oil, second gap 42 is less, and speed oil is slower excessively, the button 40 that dams continues outside movement, second gap 42 becomes large gradually, when the second gap 42 formed is greater than the first gap 41, the size now becoming the first gap 41 controlled the speed of speed oil, be specially, it is faster that first gap 41 is more bigger than speed oil, first gap 41 is less, and speed oil is slower excessively, like this when the second gap 42 is greater than the first gap 41, cross speed oil and there occurs one-level change, because the speed oil of crossing when damping mechanism damping works determines damping pressure, cross speed oil larger, damping pressure is then less, cross speed oil less, damping pressure is then larger, therefore when having served as the change of speed oil generation one-level, its damping pressure also there occurs one-level change.The inwall that in the present embodiment, the side face of projection 431 is formed slopely the conical surface and/or described shut-off chamber 131 is vertically formed slopely the conical surface vertically, by the axial stroke of the button 40 that dams described in regulating to change the size in described pressure regulation gap, the present embodiment only has the side face of projection 431 to be formed slopely the conical surface vertically, and the inwall of shut-off chamber 131 parallels with axial, in the process of the outside movement of the button 40 that so dams, the first gap 41 becomes large gradually and then crosses speed oil and accelerates.The present embodiment, dam button 40 from the whole adjustment process of the axial movement outward of complete shutoff position, the speed oil of crossing of damping oil was controlled to be controlled by the first gap 41 again by the second gap 42 before this, under the control in this two adjustments gap, the speed oil excessively to damping oil and the accurate adjustment of crossing oil mass can be realized, and regulate sensitiveer, thus the requirement reduced manufacturing, avoid damping mechanism screw of the prior art and rotate a bit of distance, the size variation crossing oily passage is just very large and cannot accomplish problem that damping pressure is changed step by step.

Be illustrated in figure 4 and regulate chamber 13 to be in complete current floe condition, by operation adjusting nut 47 inwardly precession adjusting nut 47, the button 40 that makes to dam relatively housing 10 inwardly moves axially, second gap 42 of damming between the projection 431 of slotting axle 43 end of button 40 and shut-off chamber 131 diminishes until close shut-off chamber 131 gradually, thus close adjustment chamber 13 completely, now, damping mechanism carried out oil mainly through fixing oily passage 21.

Embodiment 2:

As Fig. 6-7, the difference of the present embodiment and embodiment 1 is, described adjustment chamber 13 also comprises the second shut-off chamber 131 ' arranged that coaxially to communicate with described shut-off chamber 131, the cross-sectional area of the second shut-off chamber 131 ' is less than the cross-sectional area of shut-off chamber 131, the end of projection 431 is extended with the second projection 431 ' matched with the second shut-off chamber 131 ' inwall further, corresponding, the cross-sectional area of the second projection 431 ' is less than the cross-sectional area of projection 431, the third space 49 that described pressure regulation gap comprises described first gap 41 and formed between described second projection 431 ' side face and described second shut-off chamber 131 ', in the present embodiment, the inner chamber of oil-through hole 15 is formed described second shut-off chamber 131 ', third space 49 is formed between second projection 431 ' side face and oil-through hole 15 inwall, in addition, described second shut-off chamber 131 ' can also be arranged on coaxially to communicate between described oil-through hole 15 with described shut-off chamber 131 and with oil-through hole 15 and described shut-off chamber 131 to arrange.

In the present embodiment, the inwall that the side face of described projection 431 and the second projection 431 ' is formed slopely the conical surface and/or described shut-off chamber 131 and the second shut-off chamber 131 ' all is vertically formed slopely the conical surface all vertically, by the axial stroke of the button 40 that dams described in regulating to change the size in described pressure regulation gap, in the present embodiment, only adopt and the side face of described projection 431 and the second projection 431 ' is formed slopely the conical surface all vertically, and shut-off chamber 131 is all parallel with axial with the inwall of the second shut-off chamber 131 '.Other does not state part-structure and operation principle is consistent with above-described embodiment, repeats no more here.

Above-described embodiment 1 realizes the one-level change of damping pressure under the first gap and the effect of the second gap, embodiment 2 realizes the one-level change of damping pressure under the first gap and third space effect, be understandable that, change when damping pressure then being made to realize secondary when damming button 40 and regulating and arrange three pressure regulation gaps between the inwall in chamber 13, damping pressure then can be made when four pressure regulation gaps are set to realize three grades of changes, realize the change step by step of damping pressure by that analogy, and specifically what change can be arranged as required, concrete structure and principle corresponding with above-mentioned, here repeat no more.

In addition, the utility model additionally provides that a kind of toilet is slow falls cover plate (not shown), it comprises the damping mechanism with adjustment chamber 13 described in above-mentioned any one preferred embodiment, dependency structure and description are with reference to above-mentioned explanation and accompanying drawing, do not repeat at this, and damping mechanism is also ordinary skill in the art means in the slow installation site fallen in cover plate, those of ordinary skill in the art are according to description of the present utility model and can realize above-mentioned toilet in conjunction with routine techniques means and delay the installation of falling cover plate.

Above-mentioned explanation illustrate and describes preferred embodiment of the present utility model, as previously mentioned, be to be understood that the utility model is not limited to the form disclosed by this paper, should not regard the eliminating to other embodiments as, and can be used for other combinations various, amendment and environment, and can in utility model contemplated scope described herein, changed by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change do not depart from spirit and scope of the present utility model, then all should in the protection domain of the utility model claims.

Claims (11)

1. the damping mechanism with adjustment chamber, it comprises the housing (10) being filled with damping oil and the rotating shaft (20) coordinated with the oil pocket sealed rotational in housing (10), and the oil pocket in described housing (10) is divided at least one high-voltage oil cavity (11) and at least one low pressure oil pocket (12) after assembling by housing (10) and rotating shaft (20), it is characterized in that, also comprise the adjustment chamber (13) being arranged on described housing (10) end, the one end in this adjustment chamber (13) is communicated with described high-voltage oil cavity (11) and low pressure oil pocket (12), the other end and one dams and detains (40) and be sealed and matched, the at least two pressure regulation gaps that damping pressure can be made to change step by step are formed between the inwall in this dam button (40) and described adjustment chamber (13).

2. a kind of damping mechanism with regulating chamber according to claim 1, it is characterized in that: the described button (40) that dams is provided with slotting axle (43), and on the end of housing (10), be provided with the jack (16) arranged that to communicate with described adjustment chamber (13), insert axle (43) through described jack (16) and stretch into regulate and seal grafting with described adjustment chamber (13) in chamber (13) and fix.

3. a kind of damping mechanism with regulating chamber according to claim 2, it is characterized in that: the end of described slotting axle (43) is provided with the projection (431) stretching into and regulate chamber (13) further, described adjustment chamber (13) comprises the shut-off chamber (131) and adapter cavity (132) that are interconnected further, described projection (431) stretches in shut-off chamber (131), and the side face of this projection (431) and end face are respectively and form the first gap (41) and the second gap (42) between the inwall of described shut-off chamber (131).

4. according to claim 3 a kind of with regulating the damping mechanism in chamber, it is characterized in that: described pressure regulation gap comprises the side face of described projection (431) and end face respectively and described first gap (41) formed between the inwall of described shut-off chamber (131) and the second gap (42).

5. a kind of damping mechanism with regulating chamber according to claim 4, it is characterized in that: the inwall that the side face of described projection (431) is formed slopely the conical surface and/or described shut-off chamber (131) is vertically formed slopely the conical surface vertically, by the axial stroke of the button (40) that dams described in regulating to change the size in described pressure regulation gap.

6. a kind of damping mechanism with regulating chamber according to claim 3, it is characterized in that: described adjustment chamber (13) also comprises the second shut-off chamber (131 ') arranged that coaxially to communicate with described shut-off chamber (131), the end of described projection (431) is extended with the second projection (431 ') matched with the second shut-off chamber (131 ') inwall further, the third space (49) that described pressure regulation gap comprises described first gap (41) and formed between described second projection (431 ') side face and described second shut-off chamber (131 ').

7. a kind of damping mechanism with regulating chamber according to claim 6, it is characterized in that: the inwall that the side face of described projection (431) and the second projection (431 ') is formed slopely the conical surface and/or described shut-off chamber (131) and the second shut-off chamber (131 ') all is vertically formed slopely the conical surface all vertically, by the axial stroke of the button (40) that dams described in regulating to change the size in described pressure regulation gap.

8. a kind of damping mechanism with regulating chamber according to any one of claim 1 to 7, it is characterized in that: on the diapire of described housing (10), corresponding high-voltage oil cavity (11) and low pressure oil pocket (12) place respectively offer oil-through hole (15), described high-voltage oil cavity (11) is communicated with described adjustment chamber (13) by described oil-through hole (15) with low pressure oil pocket (12).

9. a kind of damping mechanism with regulating chamber according to any one of claim 1 to 7, it is characterized in that: also comprise the set screw (46) that be fixedly connected with relative to described housing (10) and the adjusting nut (47) with described set screw (46) threaded engagement, described in dam the threaded engagement axial limiting of button (40) by described set screw (46) and adjusting nut (47) on described housing (10) to regulate the relative axial position of described dam button (40) and housing (10).

10. a kind of damping mechanism with regulating chamber according to any one of claim 1 to 7, it is characterized in that: the described button (40) that dams is provided with snap fit (44), and on the sidewall of housing (10), being provided with hole clipping (17)/draw-in groove, hole clipping (the 17)/pocket edges clamping of snap fit (44) and housing (10) sidewall detain (40) to dam described in preventing and described housing (10) departs from.

11. 1 kinds of toilets are slow falls cover plate, it is characterized in that: it comprise according to any one of claim 1 to 10 with the damping mechanism regulating chamber.