CN108814394A - A kind of adjustable lavatory lid slow descending mechanism - Google Patents
A kind of adjustable lavatory lid slow descending mechanism Download PDFInfo
- Publication number
- CN108814394A CN108814394A CN201810927352.XA CN201810927352A CN108814394A CN 108814394 A CN108814394 A CN 108814394A CN 201810927352 A CN201810927352 A CN 201810927352A CN 108814394 A CN108814394 A CN 108814394A
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- shaft
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- oil
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- lavatory lid
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- 230000007246 mechanism Effects 0.000 title claims abstract description 22
- 230000007704 transition Effects 0.000 claims abstract description 15
- 239000011148 porous material Substances 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 3
- 238000013016 damping Methods 0.000 abstract description 19
- 238000003032 molecular docking Methods 0.000 abstract description 4
- 230000004323 axial length Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 42
- 230000008569 process Effects 0.000 description 12
- 230000007423 decrease Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 11
- 235000015927 pasta Nutrition 0.000 description 4
- 206010008469 Chest discomfort Diseases 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000010774 macerated oil Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K13/00—Seats or covers for all kinds of closets
- A47K13/10—Devices for raising and lowering, e.g. tilting or lifting mechanisms; Collapsible or rotating seats or covers
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Toilet Supplies (AREA)
Abstract
The present invention relates to a kind of adjustable lavatory lid slow descending mechanisms, including casing assembly, shaft and piston, wherein the piston is equipped with perforation internal piston and external logical oil groove, leads to and is equipped with unidirectional valve collar in oil groove；The shaft includes shaft ontology and shaft back segment, and the shaft body central sets adjustment hole, is equipped with adjusting screw rod in adjustment hole, the shaft ontology includes footstalk and drive section；Oil-through-hole of the shaft back segment center equipped with docking adjustment hole, the shaft back segment includes cylindrical section and transition, and cylindrical section is equipped with the excessively oily pore of connection adjustment hole, and transition crosses hydraulic fluid port equipped with connection oil-through-hole.Slow descending mechanism using the above scheme, one adjusting screw rod is only set in shaft central spindle, the big minor adjustment of damping can be realized, because the adjusting screw rod is not take up the useful space outside axle sleeve, so that the axial length of product greatly reduces, product structure is more minimized.
Description
Technical field
The present invention relates to bathroom fields, more particularly to a kind of adjustable lavatory lid slow descending mechanism.
Background technique
In general, the damper used on lavatory lid, under identical use state, damping force is fixed and invariable, and
Same damper is mounted on different lavatory lid, and the folding time of lavatory lid is different and different client couple
The folding time demand of lavatory lid is also different, therefore existing damper leads to damper because damping force is non-adjustable
Use scope be very restricted.In order to solve this problem, patent of invention 201521102619.X is disclosed " a kind of
Enclosure interior space is separated two high pressure chests and two low pressure chambers including shell, insertion shell by the damper of resistance-adjustable "
Shaft, interface channel between high pressure chest and low pressure chamber are closed when shaft is rotated towards first direction and in shaft towards second direction
It is opened when rotation, shell has a bottom plate, further includes the oil pocket of crossing being arranged in below Housing Base, was equipped with oil in the middle part of bottom plate
Hole, plate upper surface are equipped with the oil groove of crossing for connecting oil-through hole and low pressure chamber, and bottom plate is equipped with the through-hole connected high pressure chest and cross oil pocket；
It further include that the regulating part for crossing pasta product in oil pocket for adjusting oil-through hole was set.Regulating part can be used for adjusting the mistake of oil-through hole
Pasta accumulates, and when the product of pasta excessively of oil-through hole is smaller, oil liquid flows through slowing for oil-through hole, and the damping force of damper is increased
Greatly, when the product of pasta excessively of oil-through hole is larger, the speed that oil liquid flows through oil-through hole becomes faster, and the damping force of damper is reduced,
The damper has the advantages that resistance-adjustable section, however, the regulating part of the damper is provided at except the inner space of shell, this
Kind structure needs to design independent type chamber in the tail end of product, so that the length of product increases, volume becomes larger.
Secondly, traditional oil damper, needs specially to open up an aperture in the shell tail portion of damper, it is used for oiling, this
The technological operation difficulty of method is higher.
Summary of the invention
The purpose of the present invention is to provide a kind of adjustable lavatory lid slow descending mechanisms, to optimize existing product structure
It makes.
To achieve the goals above, the technical scheme adopted by the invention is as follows：
A kind of adjustable lavatory lid slow descending mechanism, including casing assembly, shaft and piston, wherein the piston is equipped with perforation
Internal piston and external logical oil groove, lead to and are equipped with unidirectional valve collar in oil groove；The shaft includes shaft ontology and shaft back segment, this turn
Shaft body center sets adjustment hole, is equipped with adjusting screw rod in adjustment hole, the shaft ontology include for pivotal part and fixing piece it
One footstalk being fixedly connected and drive section for driving piston opposite shell component helical rotation；The shaft back segment center is equipped with
The oil-through-hole of adjustment hole is docked, which includes cylindrical section and transition, and cylindrical section is equipped with the mistake of connection adjustment hole
Oily pore, transition cross hydraulic fluid port equipped with connection oil-through-hole.
Preferably, shaft back segment molding seperated with shaft ontology.
Preferably, the shaft body central sets adjustment hole, and adjusting screw rod, the oil-through-hole docking are equipped in adjustment hole
Adjustment hole, the excessively oily pore are connected to adjustment hole.
Preferably, the unidirectional valve collar is the ring bodies that can produce plastic deformation that cross section is " V " type.
Preferably, the transition is that maximum outside diameter is connected no more than the flat part of cylindrical section by transitional surface and cylindrical section
It connects.
Preferably, the transition is that undergauge section is connect by transitional surface with cylindrical section.
Preferably, the cylindrical section free end sets several excessively oily strias, and the cylindrical section free end and shaft ontology are logical
Interference fit is riveted together, and forms oily pore.
Preferably, the adjustment hole includes guide hole section and thread segment, and the adjusting screw rod includes screw head, external thread section
And round rod segment, wherein sealing ring is equipped between the inner wall of the screw head and adjustment hole.
Preferably, the thread segment bottom of the adjustment hole is the ladder hole section of radial dilatation, the ladder hole section and cylindrical section
Free end docking with several excessively oily strias, the round rod segment of adjusting screw rod protrude into the oil-through-hole of ladder hole section.
The method for carrying out vacuum oil using the adjustable lavatory lid slow descending mechanism of above-mentioned one kind is as follows：
It walks after poly- a. assembles main part of the damper in addition to adjusting screw rod and sealing ring and is placed in vacuum tank；
Poly- b. is walked to vacuumize vacuum tank；
It walks poly- c. and protrudes into oiling needle mouth and carry out oiling in adjustment hole；
Poly- d. is walked after reaching preset injection flow, product is taken out, then lock adjusting screw rod, seals aperture, prevent from leaking.
Slow descending mechanism using the above scheme, lavatory lid is in the first half term of the process of lifting, unidirectional valve collar and piston space
Oil-gap was formed, the damping oil in piston exterior space is mainly flowed by logical oil groove to the inner space of piston, hinders mud at this time
The resistance that oil is subject to is smaller, and lavatory lid lifting is easy；Lavatory lid in the rear journey of the process of lifting, piston and shaft back segment it
Between gap be gradually increased, the damping oil in piston exterior space can by the gap that leads between oil groove and piston and shaft back segment,
It is flowed to the inner space of piston, the resistance that resistance mud oil is subject at this time is smaller, and lavatory lid lifting is more easier；Work as lavatory lid
In the first half term of the process of decline, unidirectional valve collar is bonded without oil-gap excessively, the damping oil in internal piston space with shell and piston
It is flowed by the gap between piston and shaft back segment to the exterior space of piston, the resistance that resistance mud oil is subject at this time is smaller, horse
Cover plate decline is easy；When rear journey of the lavatory lid in the process of decline, piston is mobile to one end of cylindrical section, and piston and circle
Gap between shell of column is smaller and smaller, at this point, the resistance that damping oil is subject to is increasing, lavatory lid, which slows down, to fall, until resistance
Buddhist nun's oil relied primarily on oily pore through oil-through-hole and crossed hydraulic fluid port to the flowing of the exterior space of piston, at this point, what lavatory lid was subject to
Resistance is maximum, and lavatory lid slowly lands.
The present invention on shaft ontology by being arranged an adjusting screw rod, to realize the big minor adjustment of damping, because of the adjusting
Screw rod does not occupy the useful space outside axle sleeve individually, and tradition relatively needs the setting adjusting nut control of tail end additional volumes and axle sleeve
The adjustable damping device of oil adjusting was realized in lower end surface section gap, and the axial direction that this regulative mode can effectively reduce product is long
Degree, minimizes product structure more；Secondly, the adjustment hole on the shaft ontology can be used for the oiling into damping housing unit,
Because the adjustment hole is set to the center of shaft ontology, when carrying out oil injection operation, unlike tradition utilizes the knot of tail portion aperture oiling
Structure needs to carry out shaft limit and alignment operation, therefore the flexibility operated is bigger, is more convenient.
Detailed description of the invention
Fig. 1 is overall structure of the explosion figure of the invention.
Fig. 2 is overall structure cross-sectional schematic of the invention.
Fig. 3 is the stereochemical structure diagram of adjusting screw rod of the invention.
Fig. 4 is the stereochemical structure diagram of shaft back segment of the invention.
Fig. 5 is shaft back segment cross-section structure diagram of the invention.
Fig. 6 is the stereochemical structure diagram of shaft ontology of the invention.
Fig. 7 is the cross-section structure diagram of shaft ontology of the invention.
Fig. 8 is shaft stereochemical structure diagram of the invention.
Fig. 9 is shaft cross-section structure diagram of the invention.
Figure 10 is that the present invention is applied to lavatory lid, and cross-sectional schematic of lavatory lid during lifting.
Figure 11 is the shaft end face figure of corresponding diagram 10.
Figure 12 is that the present invention is applied to lavatory lid, and lavatory lid is in the cross-sectional schematic of decline process original state.
Figure 13 is the shaft end face figure of corresponding diagram 12.
Figure 14 is that the present invention is applied to lavatory lid, and the cross-sectional schematic of lavatory lid half way state in decline process.
Figure 15 is the shaft end face figure of corresponding diagram 14.
Figure 16 is that the present invention is applied to lavatory lid, and cross-sectional schematic of the lavatory lid in slow landing.
Figure 17 is the shaft end face figure of corresponding diagram 16.
Figure 18 is cross-sectional schematic of the present invention in oiling state.
Figure 19 is state cross-sectional schematic of the present invention after having infused oil.
In figure,
121 shell of casing assembly 1 screw thread, 112 limit hole, 11 rear cover 12
111 shaft of flange, 2 shaft ontology, 21 shaft back segment 22
214 gasket of footstalk 211 drive section, 212 flange, 201 sealing ring 202
210 guide hole section of adjustment hole, 2101 thread segment, 2102 adjusting screw rod 23
231 external thread section of screw head, 232 round rod segment, 233 oil-through-hole 220
The excessively oily pore 2210 of 221 transition 222 of cylindrical section crosses hydraulic fluid port 2221
Cross 2103 piston of oily 2211 ladder hole section of stria, 3 external screw thread 31
30 first chamber A second chamber B of centre bore leads to oil groove 310
Logical unidirectional 4 sealing ring of valve collar, 5 vacuum tank 6 of oil groove 310
7 aperture 2104 of oiling needle.
Specific embodiment
Below with reference to attached drawing, technical solution of the present invention and beneficial effect are described in detail.
As depicted in figs. 1 and 2, a kind of adjustable lavatory lid slow descending mechanism, including casing assembly 1, shaft 2 and piston
3。
Wherein, which includes columnar shell 11 and rear cover 12, wherein one end of shell 11 has inside
The flange 111 that side extends, the other end is fixedly connected with rear cover 12, and the inside of shell 11 is at least partly equipped with internal screw thread 112, after
The bottom centre of lid 12 is equipped with circular limit hole 121.Shell 11 and rear cover 12 form open at one end, closed at one end and have one
The cylindrical chamber of central axis.
The shaft 2 injects in cavity from the rear end of shell 11 and keeps sealing with the open end of cavity.Specifically, the shaft
2 include shaft ontology 21 and shaft back segment 22, and the molding seperated with shaft ontology 22 of shaft back segment 21.The shaft ontology 21 includes
Footstalk 211 for being fixedly connected with one of pivotal part and fixing piece and for driving 3 opposite shell component of piston, 1 helical rotation
Drive section 212, be equipped between footstalk 211 and drive section 212 and one outward extend flange 214.The top of the flange 214 sets pad
Piece 201, lower part sets sealing ring 202 and the open end of cylindrical chamber forms sealed connection.
As shown in Figures 6 to 9, which sets adjustment hole 210, which includes guide hole section 2101 and spiral shell
Line section 2102.As shown in connection with fig. 3, adjusting screw rod 23 is equipped in adjustment hole 210, adjusting screw rod 23 includes screw head 231, external thread section
232 and round rod segment 233, wherein sealing ring 5 is equipped between screw head 231 and the inner wall of adjustment hole 210.
As shown in Figure 4 and Figure 5, which is equipped with the oil-through-hole 220 of docking adjustment hole 210, after the shaft
Section 22 includes cylindrical section 221 and transition 222, and as a kind of better embodiment, transition 222 can be no more than for maximum outside diameter
The flat part of cylindrical section 221 is connect by transitional surface with cylindrical section 221, it is also possible that the undergauge section that outer diameter is smaller than cylindrical section 221
It is connect by transitional surface with cylindrical section 221, specific implementation form is unlimited, and the other end of transition 222 protrudes into limit hole 121.
Cylindrical section 221 is equipped with the excessively oily pore 2210 of connection adjustment hole 210, and transition 222 is equipped with the excessively oily of connection oil-through-hole 220
Mouth 2221.Specifically, 221 free end of cylindrical section sets several excessively oily strias 2211, and 2102 bottom of thread segment of adjustment hole 210 is diameter
To the ladder hole section 2103 of expansion, the free end pair of the ladder hole section 2103 and cylindrical section 221 with several excessively oily strias 2211
It connects, 221 free end of cylindrical section and shaft ontology 21 are riveted together by interference fit, form oily pore 2210.It adjusts
The round rod segment 233 of screw rod 23 protrudes into the oil-through-hole 220 of ladder hole section 2103.
The piston 3 is equipped with external screw thread 31, and the piston 3 is set in shaft 2 by a centre bore 30 and is set to cavity
Interior, the internal screw thread 112 of external screw thread 31 and cavity, which is formed, to be screwed on matching relationship and the cavity of sealing is divided into filling damping oil
First chamber A and second chamber B.The inside and outside logical oil groove of perforation piston 31 is equipped between piston 31 and casing assembly 1
310, lead to and is equipped with unidirectional valve collar 4 in oil groove 310.
The damper course of work of above structure is as follows：
Slow descending mechanism using the above scheme, as shown in Figure 10 and Figure 11, lavatory lid are living in the first half term of the process of lifting
Plug 3 moves from left to right, at this point, oil-gap was formed between unidirectional valve collar 4 and piston 3,3 exterior space of piston -- the first space A
Damping oil mainly by logical oil groove 310 to the inner space of piston 3 -- second space B flows, hinder the resistance that mud oil is subject at this time
Power is smaller, and lavatory lid lifting is easy；Lavatory lid lifting process the second half, piston 3 continuation move from left to right, piston
Gap between 3 and 2 second half section of shaft is gradually increased, and the damping oil of 3 exterior space of piston can pass through logical oil groove 310 and piston 3
It with the gap between shaft back segment 22, is flowed to the inner space of piston 3, the resistance that resistance mud oil is subject at this time is smaller, toilet lid
Plate lifting is more easier.
When first half term of the lavatory lid in the process of decline, as shown in Figure 12 and Figure 13, piston 3 moves from right to left, this
When, unidirectional valve collar 4 is bonded without oil-gap is crossed with shell 11 and piston 3, and the damping oil of 3 inner space of piston -- second chamber B is logical
Cross exterior space of the gap between piston 3 and shaft back segment 22 to piston -- first chamber A flowing hinders what mud oil was subject at this time
Resistance very little, lavatory lid decline are easy；When the second half of lavatory lid in the process of decline, the continuation of piston 3 moves from right to left
It is dynamic, and the gap between piston 3 and cylindrical section 221 is smaller and smaller, hindering the resistance that mud oil is subject at this time becomes larger, lavatory lid decline
Speed slows down, as shown in Figure 14 and Figure 15;When piston motion to the leftmost side, as shown in Figure 16 and Figure 17, damping oil passed through oil
Pore 2210 is flowed through oil-through-hole 220 to the exterior space of piston 3, at this point, the resistance that damping oil is subject to is maximum, lavatory lid
Group slowly landing.
In above process, by the adjusting screw rod 23 in rotation adjustment hole 210,23 end of adjusting screw rod and mistake is adjusted
Overlapping area between oily stria 2211, so that the area of passage of oily pore 2210 was adjusted, to realize the tune of damping size
Section control, especially decrease speed of the control lavatory lid in decline process the second half.In above-mentioned construction, because of adjusting screw rod 4
It is 21 part of central spindle for being embedded at shaft 2, the useful space outside axle sleeve 1 is not occupied individually, so that the axial length of product
It greatly reduces, product structure more minimizes.
Because of the special tectonic of above-mentioned slow descending mechanism, as shown in Figure 18 and Figure 19, it can be carried out by the following method very
Empty oiling：
It walks after poly- a. assembles main part of the damper in addition to adjusting screw rod and sealing ring and is placed in vacuum tank 6；
Poly- b. is walked to vacuumize vacuum tank 6；
It walks poly- c. and protrudes into 7 mouth of oiling needle and carry out oiling in adjustment hole 210；
Poly- d. is walked after reaching preset injection flow, product is taken out, then lock adjusting screw rod 23, seals aperture 2104, prevent from seeping
Leakage.
The relatively traditional oil damper of above-mentioned correction oil injection method needs specially to open up an aperture in the shell tail portion of damper
For the method for oiling, the flexibility of this method operation is bigger, is more convenient.
The above examples only illustrate the technical idea of the present invention, and this does not limit the scope of protection of the present invention, all
According to the technical idea provided by the invention, any improvement done on the basis of technical solutions and equivalent replacement, each fall within this hair
Within bright protection scope.
Claims (10)
1. a kind of adjustable lavatory lid slow descending mechanism, including casing assembly, shaft and piston, which is characterized in that the work
Plug is equipped with perforation internal piston and external logical oil groove, leads to and is equipped with unidirectional valve collar in oil groove；The shaft includes shaft ontology
With shaft back segment, the shaft ontology includes footstalk for being fixedly connected with one of pivotal part and fixing piece and for driving
The drive section of piston opposite shell component helical rotation；The shaft back segment center is equipped with oil-through-hole, the shaft back segment
Including cylindrical section and transition, and cylindrical section is equipped with the excessively oily pore of connection drive section, and transition is equipped with connection oil-through-hole
Cross hydraulic fluid port.
2. a kind of adjustable lavatory lid slow descending mechanism as described in claim 1, which is characterized in that the shaft ontology
It is seperated molding with shaft back segment.
3. a kind of adjustable lavatory lid slow descending mechanism as claimed in claim 2, which is characterized in that in the shaft ontology
The heart sets adjustment hole, and adjusting screw rod is equipped in adjustment hole, and the oil-through-hole docks adjustment hole, and the excessively oily pore connection is adjusted
Hole.
4. a kind of lavatory lid slow descending mechanism as described in claim 1, which is characterized in that the unidirectional valve collar is cross section
For the ring bodies that can produce plastic deformation of " V " type.
5. adjustable lavatory lid slow descending mechanism as described in claim 1 a kind of, which is characterized in that the transition is
The flat part that maximum outside diameter is no more than cylindrical section is connect by transitional surface with cylindrical section.
6. adjustable lavatory lid slow descending mechanism as described in claim 1 a kind of, which is characterized in that the transition is
Undergauge section is connect by transitional surface with cylindrical section.
7. a kind of adjustable lavatory lid slow descending mechanism as described in claim 1, which is characterized in that the cylindrical section is certainly
Several excessively oily strias are set by end, the cylindrical section free end and shaft ontology are riveted together by interference fit, form oil
Pore.
8. a kind of adjustable lavatory lid slow descending mechanism as described in claim 1, which is characterized in that the adjustment hole packet
Guide hole section and thread segment are included, the adjusting screw rod includes screw head, external thread section and round rod segment, wherein the screw head and tune
Sealing ring is equipped between the inner wall of knothole.
9. a kind of adjustable lavatory lid slow descending mechanism as described in claim 1, which is characterized in that the spiral shell of the adjustment hole
Line section bottom is the ladder hole section of radial dilatation, which with cylindrical section there is the free end of several excessively oily strias to dock,
The round rod segment of adjusting screw rod protrudes into the oil-through-hole of ladder hole section.
10. a kind of lavatory lid slow descending mechanism adjustable using one kind described in claim 1 to 9 any claim carries out
The method of vacuum oil：
It walks after poly- a. assembles main part of the damper in addition to adjusting screw rod and sealing ring and is placed in vacuum tank；
Poly- b. is walked to vacuumize vacuum tank；
It walks poly- c. and protrudes into oiling needle mouth and carry out oiling in adjustment hole；
Poly- d. is walked after reaching preset injection flow, product is taken out, then lock adjusting screw rod, seals aperture, prevent from leaking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810927352.XA CN108814394A (en) | 2018-08-15 | 2018-08-15 | A kind of adjustable lavatory lid slow descending mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810927352.XA CN108814394A (en) | 2018-08-15 | 2018-08-15 | A kind of adjustable lavatory lid slow descending mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108814394A true CN108814394A (en) | 2018-11-16 |
Family
ID=64150626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810927352.XA Pending CN108814394A (en) | 2018-08-15 | 2018-08-15 | A kind of adjustable lavatory lid slow descending mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108814394A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561538A (en) * | 2020-06-11 | 2020-08-21 | 蔡燕辉 | Rotary damper |
| CN113208485A (en) * | 2021-05-18 | 2021-08-06 | 泉州沃科电器有限公司 | Lifting fine-adjustment type intelligent closestool |
| CN113413082A (en) * | 2021-07-19 | 2021-09-21 | 临海市康乐丰厨卫有限公司 | Intelligent closestool and closestool cover slow-falling hinge thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561538A (en) * | 2020-06-11 | 2020-08-21 | 蔡燕辉 | Rotary damper |
| CN113208485A (en) * | 2021-05-18 | 2021-08-06 | 泉州沃科电器有限公司 | Lifting fine-adjustment type intelligent closestool |
| CN113208485B (en) * | 2021-05-18 | 2022-07-08 | 泉州沃科电器有限公司 | Lifting fine-adjustment type intelligent closestool |
| CN113413082A (en) * | 2021-07-19 | 2021-09-21 | 临海市康乐丰厨卫有限公司 | Intelligent closestool and closestool cover slow-falling hinge thereof |
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Application publication date: 20181116 |