CN201899438U - Cover plate slowly-falling rotating shaft - Google Patents
Cover plate slowly-falling rotating shaft Download PDFInfo
- Publication number
- CN201899438U CN201899438U CN2010206808391U CN201020680839U CN201899438U CN 201899438 U CN201899438 U CN 201899438U CN 2010206808391 U CN2010206808391 U CN 2010206808391U CN 201020680839 U CN201020680839 U CN 201020680839U CN 201899438 U CN201899438 U CN 201899438U
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- Prior art keywords
- spiral guide
- guide pin
- pin bushing
- shell
- cavity
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Abstract
The utility model discloses a cover plate slowly-falling rotating shaft which comprises a transmission screw rod, a spiral guide sleeve, a housing and blades, wherein, a cavity filled with viscous fluid media is formed in the housing; the spiral guide sleeve can be mounted in the cavity of the housing in a reciprocating motion manner in the axial direction of the housing; the peripheral wall of the spiral guide sleeve is propped against the cavity wall of the cavity of the housing; a threaded section of the transmission screw rod is rotatablely limited in the cavity of the housing and spirally matched with threads of the inner wall of the spiral guide sleeve; a first through hole used for enabling the fluid media to flow is formed on the outer wall of the spiral guide sleeve in the axial direction of the spiral guide sleeve; the blades are movably mounted on the outer wall surface of the spiral guide sleeve; and a guide slot is formed at one end of each blade, and the end of the blade and the guide slot are matched with the first through hole of the spiral guide sleeve, so as to arrive at or leave the first through hole along with reciprocating motion of the spiral guide sleeve. The cover plate slowly-falling rotating shaft achieves the purpose of easily opening and slowly falling of a toilet cover plate, has the characteristics of simple structure, easiness in assembly and the like.
Description
Technical field
The utility model relates to a kind of cover plate rotating shaft, particularly relates to the rotating shaft that falls slowly of a kind of cover plate of realizing that cover plate is easily opened, slowly fallen.
Background technology
In order to reduce the smell of toilet, people are tending to lavatory lid to be buckled on the toilet main body conveniently after the convenience, therefore, people are when using toilet, the opening and closing action of lavatory lid is the most frequent, and the junction between lavatory lid and the toilet main body is its key point, makes stable, the reliability of this junction enjoy people's attention always.Yet, the lavatory lid of prior art is being installed the part that comes with some shortcomings mostly, as being directly to realize being coupled to each other between some toilet main body and the lavatory lid by some simple rotary connectors, make the junction between lavatory lid and the toilet main body not have any resistance, thereby cause people when putting down lavatory lid, accidentally just be easy to lavatory lid is beaten on the toilet main body heavyly, damage the junction between toilet lid and the toilet main body so on the one hand easily, easily lavatory lid or toilet main body are broken on the other hand.At present, though also there is the blade of employing to cross the slow landing that oily device is realized lavatory lid, there are some structural deficiencies mostly in these devices, and, the life-span limited as processing technology more complicated, structure and intensity is short etc.
The utility model content
The purpose of this utility model is to overcome the deficiency of prior art, the rotating shaft that falls slowly of a kind of cover plate is provided, it utilizes worm drive to drive flowing of fluid media (medium) in the shell cavity, and then influence the speed of worm drive, thereby realizes easily opening and the slow process of whereabouts of lavatory lid.
The technical scheme that its technical problem that solves the utility model adopts is: the rotating shaft that falls slowly of a kind of cover plate comprises drive screw, spiral guide pin bushing, shell and blade; Be provided with a cavity in the shell, be full of the fluid media (medium) of viscosity in this cavity; The spiral guide pin bushing can be contained in the cavity of shell along the axis direction of shell with moving back and forth, and the periphery wall of spiral guide pin bushing touches mutually with the chamber wall of the cavity of shell and leans on; One end of drive screw is provided with thread segment, be provided with screw thread in the inwall of spiral guide pin bushing, the thread segment of drive screw is sealed in the cavity of the shell of packing into by an end of shell, this thread segment is limited in the cavity of shell rotationally, and with the inner thread of spiral guide pin bushing mutually spiral cooperate to drive the spiral guide pin bushing reciprocating so that drive screw is by rotating; Have at the axis direction of the outer wall upper edge of spiral guide pin bushing spiral guide pin bushing and to be used to first through hole that fluid media (medium) is flowed; Blade is movably arranged on the outside wall surface of helical guide groove, one end of this blade is provided with guide groove, this end of blade and guide groove match with first through hole of spiral guide pin bushing with support with the reciprocating motion of spiral guide pin bushing to or leave first through hole fluid media (medium) slowly or fast flowed.
Be respectively equipped with one first anti-rotation face on the two relative chamber walls of the cavity of described shell, be respectively equipped with one second anti-rotation face on the two relative outside wall surface of described spiral guide pin bushing, described spiral guide pin bushing is engaged in the cavity of described shell, and its two second anti-rotation face touches mutually with two first anti-rotation faces of shell respectively and leans on, so that described spiral guide pin bushing opposite shell is not rotatable.
Axis direction along thread segment in the thread segment of described drive screw has a groove, and has two second through holes in the sidewall of the thread segment of drive screw, and this two second through hole is engaged in the place, two ends of thread segment respectively, and is connected with groove respectively.
Further, also comprise a limit assembly, the other end of described shell is provided with an opening that is connected with its cavity, limit assembly is engaged in this opening part to seal this opening, and this limit assembly rotates with the thread segment of described drive screw and cooperates, so that the thread segment of described drive screw is limited in the cavity of described shell rotationally.
Described limit assembly comprises bonnet, first sealing ring, second sealing ring, screw and steel plate washer; Be provided with a passage along its axis direction in the bonnet, an end end face of this bonnet is provided with two projectioies; The thread segment end of described drive screw is provided with two draw-in grooves; This bonnet is engaged in the open outer side of described shell rotationally, and its two projection respectively with two draw-in grooves of drive screw mutually clamping cooperate; Bottom land at the groove of described drive screw is equipped with an iron mold insert, and screw passes the passage of steel plate washer, first sealing ring, bonnet and the groove of described drive screw successively, and with the iron mold insert mutually interlocking cooperate; Second ring set and leans with the wall of the open outer side of described shell on the wall of bonnet.
Further, also comprise one the 3rd sealing ring, the 3rd ring set and leans with the cavity wall of described shell on the other end outside wall surface of described spiral guide pin bushing.
Described first through hole is two, and this two first through hole is located at respectively on the other two relative outside wall surface of described spiral guide pin bushing; Be respectively equipped with card article on this two outside wall surface; Described blade is two, and the madial wall of this two blade is respectively equipped with a chute; This two blade is limited on this two outside wall surface of described spiral guide pin bushing with the activity cooperation of corresponding card article by chute respectively.
Further, also comprise two the 4th sealing rings, these two the 4th sealing rings are set on the body of rod in the thread segment outside of described drive screw, and lean with the cavity inner wall of described shell respectively.
Be respectively equipped with some ribs on the two second anti-rotation faces of described spiral guide pin bushing, the rib on this two second anti-rotation face touches mutually with two first anti-rotation faces of described shell respectively and leans on.
The beneficial effects of the utility model are, owing to comprise shell, blade, drive screw and spiral guide pin bushing; The spiral guide pin bushing is installed in the cavity of shell and can be reciprocating along the axis direction of shell, and drive screw is engaged in the cavity of shell rotationally, and its thread segment and the spiral cooperation mutually of spiral guide pin bushing; Axis direction at the outer wall upper edge of spiral guide pin bushing spiral guide pin bushing is provided with first through hole, blade is installed on the outer wall of spiral guide pin bushing, one end of blade is provided with guide groove, and this end of blade and guide groove match with first through hole of spiral guide pin bushing, make the spiral guide pin bushing can be along with the rotation of drive screw the axis direction along shell reciprocating, thereby the fluid media (medium) that drives corresponding spiral guide pin bushing one side in the cavity of shell with an end of blade be pushed into to or leave first through hole of spiral guide pin bushing, the fluid media (medium) of spiral guide pin bushing both sides can be flowed mutually by first through hole of spiral guide pin bushing, or only the guide groove by blade is realized flowing mutually, and then drives drive screw and realize quick rotation or slowly rotate and drive lavatory lid and realize easily opening or slowly falling.Obviously, the utility model adopts worm drive to drive fluid medium pressure to change and realizes easily opening and slowly falling of lavatory lid, have simple in structure, easy to assembly, use characteristics such as reliable, stable.
Below in conjunction with drawings and Examples the utility model is described in further detail; Rotating shaft is not limited to embodiment but a kind of cover plate of the present utility model falls slowly.
Description of drawings
Fig. 1 is an exploded perspective view of the present utility model;
Fig. 2 is the partial structurtes schematic diagram after the utility model is installed;
Fig. 3 is the cutaway view of the utility model when lavatory lid opens fully;
Fig. 4 is the cutaway view of the utility model in the lavatory lid dropping process;
Fig. 5 is the cutaway view that the utility model falls behind fully down at lavatory lid;
Fig. 6 is that the utility model climbs over the cutaway view in the journey on lavatory lid.
The specific embodiment
Embodiment sees also shown in Figure 1ly, and a kind of cover plate of the present utility model rotating shaft that falls slowly comprises drive screw 1, spiral guide pin bushing 2, shell 4 and blade 3; Be provided with a cavity in the shell 4, be full of the fluid media (medium) of viscosity in this cavity; Spiral guide pin bushing 2 can be contained in the cavity of shell 4 along the axis direction of shell with moving back and forth, and the periphery wall of spiral guide pin bushing 2 touches mutually with the chamber wall of the cavity of shell 4 and leans on; One end of drive screw 1 is provided with thread segment, be provided with screw thread in the inwall of spiral guide pin bushing 2, the thread segment of drive screw 1 is sealed in the cavity of the shell 4 of packing into by an end of shell 4, this thread segment is limited in the cavity of shell 4 rotationally, and with the inner thread of spiral guide pin bushing 2 mutually spiral cooperate to drive spiral guide pin bushing 2 reciprocating so that drive screw 1 is by rotating; Have at the axis direction of the outer wall upper edge of spiral guide pin bushing 2 spiral guide pin bushing 2 and to be used to first through hole 21 that fluid media (medium) is flowed; Blade 3 is movably arranged on the outside wall surface of helical guide groove 2, one end of this blade 3 is provided with guide groove 31, this end of blade 3 and guide groove 31 match with first through hole 21 of spiral guide pin bushing 2 with support with the reciprocating motion of spiral guide pin bushing 2 to or leave first through hole 21 fluid media (medium) slowly or fast flowed.
Wherein,
Be respectively equipped with one first anti-rotation face on the two relative chamber walls of the cavity of described shell 4, be respectively equipped with one second anti-rotation face 22 on the two relative outside wall surface of described spiral guide pin bushing 2, this two first anti-rotation face and two second anti-rotation faces 22 are respectively faces structure directly, described spiral guide pin bushing 2 is engaged in the cavity of described shell 4, and its two second anti-rotation face 22 touches mutually with two first anti-rotation faces of shell 4 respectively and leans on, so that described spiral guide pin bushing 2 opposite shell 4 are not rotatable;
Axis direction along thread segment in the thread segment of described drive screw 1 has a groove, and has two second through holes 11 in the sidewall of the thread segment of drive screw 1, and this two second through hole 11 is engaged in the place, two ends of thread segment respectively, and is connected with groove respectively; By the setting of these two second through holes 11, can control the start angle that falls slowly of lavatory lid;
Further, also comprise a limit assembly, the other end of described shell 4 is provided with an opening that is connected with its cavity, limit assembly is engaged in this opening part to seal this opening, and this limit assembly rotates with the thread segment of described drive screw 1 and cooperates, so that the thread segment of described drive screw 1 is limited in the cavity of described shell 4 rotationally; Here, limit assembly comprises bonnet 5, first sealing ring 61, second sealing ring 52, screw 6 and steel plate washer 62; Be provided with a passage along its axis direction in the bonnet 5, an end end face of this bonnet 5 is provided with two projectioies 51; The thread segment end of described drive screw 1 is provided with two draw-in grooves 13; This bonnet 5 is engaged in the open outer side of described shell 4 rotationally, and its two projection 51 respectively with two draw-in grooves 13 of drive screw 1 mutually clamping cooperate; Bottom land at the groove of described drive screw 1 is equipped with an iron mold insert 14 (as shown in Figure 3), and screw 6 passes the passage of steel plate washer 62, first sealing ring 61, bonnet 5 and the groove of described drive screw 1 successively, and with iron mold insert 14 mutually interlocking cooperate; Second sealing ring 52 is sleeved on the wall of bonnet 5, and leans with the wall of the open outer side of described shell 4;
Further, comprise that also one the 3rd sealing ring, 24, the three sealing rings 24 are sleeved on the other end outside wall surface of described spiral guide pin bushing 2, and lean with the cavity wall of described shell 4;
Described first through hole 21 is two, and this two first through hole 21 is located at respectively on the other two relative outside wall surface of described spiral guide pin bushing 2; Be respectively equipped with card article 23 on this two outside wall surface; Described blade 3 is two, and the madial wall of this two blade 3 is respectively equipped with a chute; This two blade 3 is limited on this two outside wall surface of described spiral guide pin bushing 2 with the activity cooperation of corresponding card article 23 by chute respectively;
Further, also comprise two the 4th sealing rings 12, these two the 4th sealing rings 12 are set on the body of rod in the thread segment outside of described drive screw 1, and lean with the cavity inner wall of described shell 4 respectively;
Be respectively equipped with some ribs 221 on the two second anti-rotation faces 22 of described spiral guide pin bushing 2, the rib 221 on this two second anti-rotation face 22 touches mutually with two first anti-rotation faces of described shell 4 respectively and leans on; By rib 221 is set, can prevent that two second anti-rotation faces 22 of spiral guide pin bushing 2 and two first anti-rotation faces of shell from pasting extremely mutually.
A kind of cover plate of the present utility model rotating shaft that falls slowly, see also shown in Figure 2, after the assembling of parts such as drive screw 1, spiral guide pin bushing 2, blade 3, shell 4, the other end of drive screw 1 is sleeved in the guide pin bushing of bottom of lavatory lid 7, shell 4 is fixedly set in the guide pin bushing of erection support 8, then when turning on the lavatory lid 7 or falling, will drive drive screw 1 and rotate, thereby it is reciprocating to drive spiral guide pin bushing 2 axis direction along shell in the cavity of shell 4.
See also shown in Figure 3, open fully at lavatory lid 7, be before lavatory lid 7 begins to fall, spiral guide pin bushing 2 is engaged in the bottom of the cavity of shell 4, and its internal thread cooperates with the terminal spiral mutually of the thread segment of drive screw 1, one of them second through hole of drive screw 1 is covered by spiral guide pin bushing 2, and an end that has guide groove 31 simultaneously in the blade 3 leaves first through hole 21 of spiral guide pin bushing.Along with the whereabouts of lavatory lid 7, drive screw 1 action that rotates, and drive spiral guide pin bushing 2 and outwards do the translation action along the axis of the cavity of shell 4.At this moment, spiral guide pin bushing 2 leaves wherein one second through hole of drive screw 1, makes the fluid media (medium) of spiral guide pin bushing 2 both sides realize flowing through two second through holes 11 of drive screw, thereby the cavity of shell 4 is separated into first chamber 41 and second chamber 42, as shown in Figure 4.In this process, because the pressure of fluid media (medium) is greater than the pressure of fluid media (medium) in second chamber 42 in first chamber 41, thereby, the end effect of being stressed that has guide groove 31 in the blade 3 is to first through hole 21 to the spiral guide pin bushing, thereby first through hole 21 is covered by local, thereby the fluid media (medium) in first chamber 41 can only flow to second chamber 42 through part first through hole by the guide groove 31 of blade except two second through holes 21 by drive screw flow.Obviously, the fluid media (medium) in this process in the cavity of shell 4 flows comparatively slow, and promptly the velocity of rotation of drive screw 1 is comparatively slow.
See also shown in Figure 5ly, along with the continuation campaign of spiral guide pin bushing 2, an end that has guide groove 31 in the blade 3 keep to support the state to first through hole 21 of spiral guide pin bushing.When spiral guide pin bushing 2 covered another second through hole of drive screw 1 gradually, it is more slow that the velocity of rotation of drive screw 1 becomes, until stopping operating at last.This has promptly realized the process that lavatory lid slowly falls.
See also shown in Figure 6ly, this climbs over cutaway view in the journey for the utility model on lavatory lid.In this process, because the pressure of the fluid media (medium) in second chamber 42 is greater than the pressure of the fluid media (medium) in first chamber 41, thereby, an end that has guide groove 31 in the blade 3 is subjected to the pressure effect of fluid media (medium) in second chamber 42 and keeps leaving the state of first through hole 21 of spiral guide pin bushing, thereby, fluid media (medium) in first chamber 41 and second chamber 42 can be realized flowing by first through hole 21 all the time fully, in addition when spiral guide pin bushing 2 does not cover any one second through hole of drive screw 1, fluid media (medium) in first chamber 41 and second chamber 42 also can be realized flowing through two second through holes 11 of drive screw 1, thereby in this process, fluid media (medium) in the cavity of shell 4 flows very fast, and promptly the velocity of rotation of drive screw 1 is very fast.This has promptly realized the process that lavatory lid is easily opened.
The foregoing description only is used for further specifying a kind of cover plate of the present utility model rotating shaft that falls slowly; but the utility model is not limited to embodiment; every foundation technical spirit of the present utility model all falls in the protection domain of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (9)
1. cover plate rotating shaft that falls slowly is characterized in that: comprise drive screw, spiral guide pin bushing, shell and blade; Be provided with a cavity in the shell, be full of the fluid media (medium) of viscosity in this cavity; The spiral guide pin bushing can be contained in the cavity of shell along the axis direction of shell with moving back and forth, and the periphery wall of spiral guide pin bushing touches mutually with the chamber wall of the cavity of shell and leans on; One end of drive screw is provided with thread segment, be provided with screw thread in the inwall of spiral guide pin bushing, the thread segment of drive screw is sealed in the cavity of the shell of packing into by an end of shell, this thread segment is limited in the cavity of shell rotationally, and with the inner thread of spiral guide pin bushing mutually spiral cooperate to drive the spiral guide pin bushing reciprocating so that drive screw is by rotating; Have at the axis direction of the outer wall upper edge of spiral guide pin bushing spiral guide pin bushing and to be used to first through hole that fluid media (medium) is flowed; Blade is movably arranged on the outside wall surface of helical guide groove, one end of this blade is provided with guide groove, this end of blade and guide groove match with first through hole of spiral guide pin bushing with support with the reciprocating motion of spiral guide pin bushing to or leave first through hole fluid media (medium) slowly or fast flowed.
2. the cover plate according to claim 1 rotating shaft that falls slowly, it is characterized in that: be respectively equipped with one first anti-rotation face on the two relative chamber walls of the cavity of described shell, be respectively equipped with one second anti-rotation face on the two relative outside wall surface of described spiral guide pin bushing, described spiral guide pin bushing is engaged in the cavity of described shell, and its two second anti-rotation face touches mutually with two first anti-rotation faces of shell respectively and leans on, so that described spiral guide pin bushing opposite shell is not rotatable.
3. the cover plate according to claim 1 rotating shaft that falls slowly, it is characterized in that: the axis direction along thread segment in the thread segment of described drive screw has a groove, and have two second through holes in the sidewall of the thread segment of drive screw, this two second through hole is engaged in the place, two ends of thread segment respectively, and is connected with groove respectively.
4. the cover plate according to claim 3 rotating shaft that falls slowly, it is characterized in that: further, also comprise a limit assembly, the other end of described shell is provided with an opening that is connected with its cavity, limit assembly is engaged in this opening part to seal this opening, and this limit assembly rotates with the thread segment of described drive screw and cooperates, so that the thread segment of described drive screw is limited in the cavity of described shell rotationally.
5. the cover plate according to claim 4 rotating shaft that falls slowly, it is characterized in that: described limit assembly comprises bonnet, first sealing ring, second sealing ring, screw and steel plate washer; Be provided with a passage along its axis direction in the bonnet, an end end face of this bonnet is provided with two projectioies; The thread segment end of described drive screw is provided with two draw-in grooves; This bonnet is engaged in the open outer side of described shell rotationally, and its two projection respectively with two draw-in grooves of drive screw mutually clamping cooperate; Bottom land at the groove of described drive screw is equipped with an iron mold insert, and screw passes the passage of steel plate washer, first sealing ring, bonnet and the groove of described drive screw successively, and with the iron mold insert mutually interlocking cooperate; Second ring set and leans with the wall of the open outer side of described shell on the wall of bonnet.
6. the cover plate according to claim 1 and 2 rotating shaft that falls slowly is characterized in that: further, also comprise one the 3rd sealing ring, the 3rd ring set and leans with the cavity wall of described shell on the other end outside wall surface of described spiral guide pin bushing.
7. the cover plate according to claim 2 rotating shaft that falls slowly, it is characterized in that: described first through hole is two, this two first through hole is located at respectively on the other two relative outside wall surface of described spiral guide pin bushing; Be respectively equipped with card article on this two outside wall surface; Described blade is two, and the madial wall of this two blade is respectively equipped with a chute; This two blade is limited on this two outside wall surface of described spiral guide pin bushing with the activity cooperation of corresponding card article by chute respectively.
8. the cover plate according to claim 1 rotating shaft that falls slowly, it is characterized in that: further, also comprise two the 4th sealing rings, these two the 4th sealing rings are set on the body of rod in the thread segment outside of described drive screw, and lean with the cavity inner wall of described shell respectively.
9. the cover plate according to claim 2 rotating shaft that falls slowly, it is characterized in that: be respectively equipped with some ribs on the two second anti-rotation faces of described spiral guide pin bushing, the rib on this two second anti-rotation face touches mutually with two first anti-rotation faces of described shell respectively and leans on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206808391U CN201899438U (en) | 2010-12-24 | 2010-12-24 | Cover plate slowly-falling rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206808391U CN201899438U (en) | 2010-12-24 | 2010-12-24 | Cover plate slowly-falling rotating shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201899438U true CN201899438U (en) | 2011-07-20 |
Family
ID=44270039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206808391U Expired - Lifetime CN201899438U (en) | 2010-12-24 | 2010-12-24 | Cover plate slowly-falling rotating shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201899438U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102440715A (en) * | 2011-08-17 | 2012-05-09 | 王湘冀 | Slow-falling rotating shaft structure |
| WO2015161797A1 (en) * | 2014-04-23 | 2015-10-29 | 王湘冀 | Damping rotating shaft mechanism with self-compensating seal and toilet cover having same |
| CN105020257A (en) * | 2014-04-23 | 2015-11-04 | 王湘冀 | Damping revolving shaft mechanism with seal self-compensation capability |
| CN105781303A (en) * | 2016-01-29 | 2016-07-20 | 王湘冀 | Damper |
-
2010
- 2010-12-24 CN CN2010206808391U patent/CN201899438U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102440715A (en) * | 2011-08-17 | 2012-05-09 | 王湘冀 | Slow-falling rotating shaft structure |
| WO2015161797A1 (en) * | 2014-04-23 | 2015-10-29 | 王湘冀 | Damping rotating shaft mechanism with self-compensating seal and toilet cover having same |
| CN105020257A (en) * | 2014-04-23 | 2015-11-04 | 王湘冀 | Damping revolving shaft mechanism with seal self-compensation capability |
| CN105020257B (en) * | 2014-04-23 | 2018-08-31 | 厦门威迪亚精密模具塑胶有限公司 | One kind, which has, seals self-compensating Damping rotation shaft mechanism |
| CN105781303A (en) * | 2016-01-29 | 2016-07-20 | 王湘冀 | Damper |
| CN105781303B (en) * | 2016-01-29 | 2017-07-11 | 王湘冀 | A kind of damper |
| WO2017128971A1 (en) * | 2016-01-29 | 2017-08-03 | 王湘冀 | Damping device |
| US10718144B2 (en) | 2016-01-29 | 2020-07-21 | Xianji Wang | Damper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Xiamen Weidiya Precision Mould Plastic Co., Ltd. Assignor: Wang Xiangji Contract record no.: 2013350000048 Denomination of utility model: Cover plate slowly-falling rotating shaft Granted publication date: 20110720 License type: Exclusive License Record date: 20130419 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110720 |
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| CX01 | Expiry of patent term |