CN104499860A - Floor spring with door opening and closing strength adjusting and multi-point positioning functions - Google Patents
Floor spring with door opening and closing strength adjusting and multi-point positioning functions Download PDFInfo
- Publication number
- CN104499860A CN104499860A CN201410660425.5A CN201410660425A CN104499860A CN 104499860 A CN104499860 A CN 104499860A CN 201410660425 A CN201410660425 A CN 201410660425A CN 104499860 A CN104499860 A CN 104499860A
- Authority
- CN
- China
- Prior art keywords
- spring
- drawing piece
- cam
- piston
- force
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
- E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
- E05F3/22—Additional arrangements for closers, e.g. for holding the wing in opened or other position
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/13—Application of doors, windows, wings or fittings thereof for buildings or parts thereof characterised by the type of wing
- E05Y2900/132—Doors
Abstract
The invention relates to a floor spring with door opening and closing strength adjusting and multi-point positioning functions. The floor spring comprises a valve body and a center shaft. Two ends of a valve chamber are provided with a piston, a rear cover and a spring. An upper pulling piece, a main cam, an auxiliary cam, a lower pulling piece, a large roller shaft and a small roller shaft are arranged in a moving chamber. The large roller shaft is connected with a drive roller. The small roller shaft is connected with a buffer roller. The main cam is provided with a continuous outer contour in the arc surface. A notch is formed in the main cam. The auxiliary cam is provided with an arc outer contour. An oil leak is formed in the head of the piston ad internally provided with a one-way valve. An upper cover is arranged on the upper portion of the moving chamber. The floor spring has the advantages that a double-cam structure is adopted to achieve 90-degree positioning and 90- to 180-degree optional positioning; connections such as a pulling rod of the traditional floor spring are omitted, and the spring at the tail is employed to adjust strength, thus the door opening and closing strength is adjusted.
Description
Technical field
The present invention relates to a kind of hydraulic door closer, especially relate to a kind of can between 90 ~ 180 degree arbitrfary point location the adjustable multistage of switch gate power positioningly spring.
Background technology
Floor spring is a kind of hydraulic door closer, and only the device of its holddown spring is worm gear instead of rack-and-pinion.Because worm gear can forward and reversely rotate, so floor spring may be used for the door of bidirectional opening, door closer then can only be used for the door of unidirectional unlatching.The worm gear arrangement of floor spring, makes the compression degree of spring less than the door closer of rack pinion, and the arm of force that floor spring is closed the door is also short, so the dependence of the quality of floor spring to structure design and machining accuracy is higher.In addition because the door leaf of bi-directional door has very large active force along door leaf plane to floor spring, so the gap of the application life of low-grade floor spring and high-grade floor spring can be very large.
Current floor spring opening and closing and orientation angle are 90 degree, and angle is less than normal, and door leaf takes up room greatly, and in the occasion that mobility of people is larger, can put to no little inconvenience to personnel's trip, in addition because angle is little, door leaf is also easily damaged by external force collision.For addressing this problem, market occurring some open and close angles can reach the floor spring between 90 ~ 180 degree, door leaf opening and closing dynamics can have been adjusted, regulate between 2 ~ No. 4 power, but can not locate.For coordinating a large amount of flows of personnel, door leaf can be opened into 180 degree, owing to lacking positioning function, can automatically close afterwards, and it is convenient not to use.
Also have a kind of floor springs that can realize 90 ~ 180 degree of unlatchings and location, but lack force adjustment function, the dynamics of door leaf opening and closing is uncontrollable, as notification number is: the floor spring of a kind of unidirectional unlatching 180 degree that the Chinese utility model patent of CN2467720Y provides, comprise housing, pull bar, axle center, spring, piston, it is characterized in that: there is evagination the both sides, front end of pull bar, porose on evagination, fluted on axle center, porose on axle center, hole on the bolt cylinder lever connecting rod of Nei You axle center, hole, another hole there is roller steel core, roller steel core overcoat has centrifugal roller, outside axle center, camber line there is the rank broken string that two sections relative, there is block the front end of spring, the block of side breaks with the rank of camber line outside axle center and coordinates, another block coordinates with centrifugal roller.Although this floor spring can increase door leaf opening angle, facilitate personnel to come in and go out, the opening and closing dynamics of floor spring self is unadjustable, after long-time frequent unlatching, the elastic force of spring can be made to weaken, and axle center leakage of oil, floor spring is caused to damage, and complex structure, manufacturing cost is higher.
Summary of the invention
The present invention mainly for existing for existing floor spring cannot multipoint positioning, the uncontrollable problem of opening and closing dynamics, there is provided one both can regulate door leaf opening and closing dynamics, 90 ~ 180 degree of adjustable multistage of switch gate power positioningly springs opened and locate can be realized again.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: the adjustable multistage of a kind of switch gate power positioningly spring, comprise valve body and central axis, the valve body chamber and movable chamber that communicate is provided with in described valve body, the two ends in valve body chamber are respectively equipped with piston and bonnet, spring is connected with between piston and bonnet, from up to down upper drawing piece is provided with successively in movable chamber, main cam, auxiliary cam and lower drawing piece, upper drawing piece and lower drawing piece are equipped with guide groove, central axis is also vertically connected in movable chamber through the guide groove of upper drawing piece and lower drawing piece, main cam is all fixedly connected with central axis with auxiliary cam, upper drawing piece is connected by big roller axle with lower drawing piece, big roller axle is connected with the live roller abutted with main cam, main cam has the outline of continuous print arc-shaped curved surface, main cam be provided with can with live roller with the use of breach, auxiliary cam has the outline of arc, lower drawing piece is connected with trundle axle, trundle axle is connected with the cushion idler that can abut with auxiliary cam, the head of described piston is provided with the oil leak hole in communicating valve body cavity and movable chamber, one way valve is provided with in oil leak hole, the head of piston is fixed between upper drawing piece and lower drawing piece, the top in movable chamber is provided with upper cover.This floor spring uses double-cam structure, central axis upper end is connected with door-hinge, when door leaf is opened, central axis drives main cam and auxiliary cam to rotate, the outer wheel face of driving wheel abuts with live roller, promote piston to move backward, central axis translation backward in the guide groove of upper drawing piece and lower drawing piece, when main cam turns to indentation, there, during as door leaf unlatching 90 degree, live roller is connected in this breach, door leaf is located, when under external force, continue to increase door leaf opening angle, live roller departs from the constraint of breach, main cam turns to and exceedes breach point position, as door leaf is opened into position, arbitrfary point between 90 ~ 180 degree, driving cam closely will compress with this position, arbitrfary point, play positioning action.When door leaf cuts out, piston advances forward, driving wheel reverses, central axis is shifted forward in the guide groove of upper drawing piece and lower drawing piece, now auxiliary cam abuts with cushion idler, places restrictions on the movement of central axis, plays position-limiting action, therefore this floor spring not only can realize the location of 90 degree, the location, arbitrfary point of 90 ~ 180 degree can be realized again.
As preferably, described bonnet is connected with force-regulating rod, the leading portion of force-regulating rod is provided with screw thread and stretches into valve chamber, the through bonnet of back segment of force-regulating rod also extends to the outside of bonnet, the leading portion of force-regulating rod is bolted with spring fastening, the outer wheel face of spring fastening and the chamber wall in valve body chamber are for being threaded, and one end of described spring is connected with piston, and the other end of spring is connected with spring fastening.This floor spring directly eliminates the connectors such as the pull bar of spring traditionally, replaces and uses the spring strength of adjustment of afterbody.When needs force adjustment, can use tool into rotation force-regulating rod, force-regulating rod rotates, drive spring fastening rotates, because spring fastening and valve body chamber are spirally connected, spring fastening can be fixed after rotating, and the length of corresponding spring is compressed, acting force of the spring is larger, otherwise, rotate backward force-regulating rod, can spring stretches be made, acting force of the spring is less, thus have adjusted door leaf opening and closing dynamics.
As preferably, the overall ovalize of described main cam, side flat on main cam is provided with arc notch I, and on main cam, the both sides of evagination are equipped with arc notch II, and arc notch I and arc notch II all match with live roller.Arc notch I and arc notch II all can be joined with live roller card, play positioning action, and when main cam is rotated further, live roller can be located in the arbitrfary point of arc notch I and arc notch II.
As preferably, described auxiliary cam ovalize, a male end of auxiliary cam is wedge angle, and another male end is plane.The outline of auxiliary cam is relevant to the outline of main cam, plays position-limiting action.
As preferably, the middle part of described force-regulating rod is provided with the location shaft shoulder of protrusion, and the inner end of bonnet is provided with the groove that can hold the location shaft shoulder, and the back segment of force-regulating rod is installed with spacing jump ring.The location shaft shoulder plays position-limiting action, prevents force-regulating rod from deviating from floor spring, and can ensure the centering of force-regulating rod.
As preferably, described force-regulating rod is provided with seal groove, and seal groove, between the location shaft shoulder and spacing jump ring, is connected with sealing ring in seal groove.Improve sealing, prevent leakage of oil.
As preferably, described upper drawing piece and lower drawing piece are equipped with aperture, are connected with pulling-on piece screw in aperture, the head of piston is provided with the via hole aimed at described aperture, and upper drawing piece and lower drawing piece are fixed by pulling-on piece screw and piston.Be connected firmly stable.
As preferably, be provided with bearing I in described upper cover, the bottom in movable chamber is provided with bearing II, and bearing I is connected with the upper end of central axis, and bearing II is connected with the lower end of central axis.Bearing for ensureing the verticality of central axis, the rotation that central axis can be reliable and stable.
Therefore, the invention has the beneficial effects as follows: 1), this floor spring use double-cam structure, not only can realize the location of 90 degree, can realize again 90 ~ 180 degree arbitrfary point locate; 2), this floor spring directly eliminates the connectors such as the pull bar of spring traditionally, the spring strength of adjustment of the use afterbody that replaces, thus have adjusted door leaf opening and closing dynamics.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of overall structure schematic diagram of the present invention;
Accompanying drawing 2 be in the present invention inner core part a kind of structural representation;
Accompanying drawing 3 is the A-A partial sectional views in accompanying drawing 2;
Accompanying drawing 4 is a kind of structural representations of upper drawing piece in the present invention;
Accompanying drawing 5 is a kind of structural representations of lower drawing piece in the present invention.
Shown in figure: 1-valve body, 2-central axis, 3-valve body chamber, the movable chamber of 4-, 5-piston, 6-bonnet, 7-spring, 8-upper drawing piece, 9-lower drawing piece, 10-main cam, 11-auxiliary cam, 12-big roller axle, 13-live roller, 14-trundle axle, 15-cushion idler, 16-oil leak hole, 17-upper cover, 18-force-regulating rod, 19-spring fastening, 20-arc notch I, 21-arc notch II, 22-locates the shaft shoulder, the spacing jump ring of 23-, 24-sealing ring, 25-pulling-on piece screw, 26-bearing I, 27-bearing II.
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment:
As Figure of description 1, shown in 2, a kind of adjustable multistage of switch gate power positioningly spring, comprise valve body 1 and central axis 2, the valve body chamber 3 and movable chamber 4 that communicate is provided with in valve body, the two ends in valve body chamber are respectively equipped with piston 5 and bonnet 6, spring 7 is connected with between piston and bonnet, from up to down upper drawing piece 8 is provided with successively in movable chamber, main cam 10, auxiliary cam 11 and lower drawing piece 9, as Figure of description 4, shown in 5, upper drawing piece and lower drawing piece are equipped with guide groove, central axis is also vertically connected in movable chamber through the guide groove of upper drawing piece and lower drawing piece, main cam is all fixedly connected with central axis with auxiliary cam, upper drawing piece is connected by big roller axle 12 with lower drawing piece, big roller axle is connected with the live roller 13 abutted with main cam, as shown in Figure of description 3, main cam has the outline of continuous print arc-shaped curved surface, main cam be provided with can with live roller with the use of breach, the overall ovalize of main cam, side flat on main cam is provided with arc notch I 20, on main cam, the both sides of evagination are equipped with arc notch II 21, arc notch I and arc notch II all match with live roller, auxiliary cam has the outline of arc, auxiliary cam ovalize, a male end of auxiliary cam is wedge angle, another male end is plane, lower drawing piece is connected with trundle axle 14, trundle axle is connected with the cushion idler 15 that can abut with auxiliary cam, the head of piston is provided with the oil leak hole 16 in communicating valve body cavity and movable chamber, one way valve is provided with in oil leak hole, the head of piston is fixed between upper drawing piece and lower drawing piece, upper drawing piece and lower drawing piece are equipped with aperture, pulling-on piece screw 25 is connected with in aperture, the head of piston is provided with the via hole aimed at aperture, upper drawing piece and lower drawing piece are fixed by pulling-on piece screw and piston, the top in movable chamber is provided with upper cover 17, bearing I 26 is provided with in upper cover, the bottom in movable chamber is provided with bearing II 27, bearing I is connected with the upper end of central axis, bearing II is connected with the lower end of central axis, bonnet is connected with force-regulating rod 18, the leading portion of force-regulating rod is provided with screw thread and stretches into valve chamber, the through bonnet of back segment of force-regulating rod also extends to the outside of bonnet, the leading portion of force-regulating rod is bolted with spring fastening 19, the outer wheel face of spring fastening and the chamber wall in valve body chamber are for being threaded, one end of spring is connected with piston, the other end of spring is connected with spring fastening, the middle part of force-regulating rod is provided with the location shaft shoulder 22 of protrusion, the inner end of bonnet is provided with the groove that can hold the location shaft shoulder, the back segment of force-regulating rod is installed with spacing jump ring 23, force-regulating rod is provided with seal groove, seal groove is between the location shaft shoulder and spacing jump ring, sealing ring 24 is connected with in seal groove.
This floor spring uses double-cam structure, central axis upper end is connected with door-hinge, when door leaf is opened, central axis drives main cam and auxiliary cam to rotate, the outer wheel face of driving wheel abuts with live roller, promote piston to move backward, central axis translation backward in the guide groove of upper drawing piece and lower drawing piece, when main cam turns to indentation, there, during as door leaf unlatching 90 degree, live roller is connected in this breach, door leaf is located, when under external force, continue to increase door leaf opening angle, live roller departs from the constraint of breach, main cam turns to and exceedes breach point position, as door leaf is opened into position, arbitrfary point between 90 ~ 180 degree, driving cam closely will compress with this position, arbitrfary point, play positioning action.When door leaf cuts out, piston advances forward, driving wheel reverses, central axis is shifted forward in the guide groove of upper drawing piece and lower drawing piece, now auxiliary cam abuts with cushion idler, places restrictions on the movement of central axis, plays position-limiting action, therefore this floor spring not only can realize the location of 90 degree, the location, arbitrfary point of 90 ~ 180 degree can be realized again.
This floor spring directly eliminates the connectors such as the pull bar of spring traditionally, replaces and uses the spring strength of adjustment of afterbody.When needs force adjustment, can use tool into rotation force-regulating rod, force-regulating rod rotates, drive spring fastening rotates, because spring fastening and valve body chamber are spirally connected, spring fastening can be fixed after rotating, and the length of corresponding spring is compressed, acting force of the spring is larger, otherwise, rotate backward force-regulating rod, can spring stretches be made, acting force of the spring is less, thus have adjusted door leaf opening and closing dynamics.
Should be understood that this embodiment is only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Claims (8)
1. the adjustable multistage of switch gate power positioningly spring, comprise valve body and central axis, it is characterized in that, the valve body chamber and movable chamber that communicate is provided with in described valve body, the two ends in valve body chamber are respectively equipped with piston and bonnet, spring is connected with between piston and bonnet, from up to down upper drawing piece is provided with successively in movable chamber, main cam, auxiliary cam and lower drawing piece, upper drawing piece and lower drawing piece are equipped with guide groove, central axis is also vertically connected in movable chamber through the guide groove of upper drawing piece and lower drawing piece, main cam is all fixedly connected with central axis with auxiliary cam, upper drawing piece is connected by big roller axle with lower drawing piece, big roller axle is connected with the live roller abutted with main cam, main cam has the outline of continuous print arc-shaped curved surface, main cam be provided with can with live roller with the use of breach, auxiliary cam has the outline of arc, lower drawing piece is connected with trundle axle, trundle axle is connected with the cushion idler that can abut with auxiliary cam, the head of described piston is provided with the oil leak hole in communicating valve body cavity and movable chamber, one way valve is provided with in oil leak hole, the head of piston is fixed between upper drawing piece and lower drawing piece, the top in movable chamber is provided with upper cover.
2. the adjustable multistage of a kind of switch gate power according to claim 1 positioningly spring, it is characterized in that, described bonnet is connected with force-regulating rod, the leading portion of force-regulating rod is provided with screw thread and stretches into valve chamber, the through bonnet of back segment of force-regulating rod also extends to the outside of bonnet, and the leading portion of force-regulating rod is bolted with spring fastening, and the outer wheel face of spring fastening and the chamber wall in valve body chamber are for being threaded, one end of described spring is connected with piston, and the other end of spring is connected with spring fastening.
3. the adjustable multistage of a kind of switch gate power according to claim 1 positioningly spring, it is characterized in that, the overall ovalize of described main cam, side flat on main cam is provided with arc notch I, on main cam, the both sides of evagination are equipped with arc notch II, and arc notch I and arc notch II all match with live roller.
4. the adjustable multistage of a kind of switch gate power according to claim 1 positioningly spring, is characterized in that, described auxiliary cam ovalize, and a male end of auxiliary cam is wedge angle, and another male end is plane.
5. the adjustable multistage of a kind of switch gate power according to claim 2 positioningly spring, it is characterized in that, the middle part of described force-regulating rod is provided with the location shaft shoulder of protrusion, and the inner end of bonnet is provided with the groove that can hold the location shaft shoulder, and the back segment of force-regulating rod is installed with spacing jump ring.
6. the adjustable multistage of a kind of switch gate power positioningly spring according to claim 2 or 5, it is characterized in that, described force-regulating rod is provided with seal groove, and seal groove, between the location shaft shoulder and spacing jump ring, is connected with sealing ring in seal groove.
7. the adjustable multistage of a kind of switch gate power according to claim 1 positioningly spring, it is characterized in that, described upper drawing piece and lower drawing piece are equipped with aperture, pulling-on piece screw is connected with in aperture, the head of piston is provided with the via hole aimed at described aperture, and upper drawing piece and lower drawing piece are fixed by pulling-on piece screw and piston.
8. the adjustable multistage of a kind of switch gate power according to claim 1 positioningly spring, it is characterized in that, be provided with bearing I in described upper cover, the bottom in movable chamber is provided with bearing II, bearing I is connected with the upper end of central axis, and bearing II is connected with the lower end of central axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410660425.5A CN104499860B (en) | 2014-11-19 | 2014-11-19 | A kind of switch gate power adjustable multistage positioningly spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410660425.5A CN104499860B (en) | 2014-11-19 | 2014-11-19 | A kind of switch gate power adjustable multistage positioningly spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104499860A true CN104499860A (en) | 2015-04-08 |
| CN104499860B CN104499860B (en) | 2016-12-07 |
Family
ID=52941301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410660425.5A Active CN104499860B (en) | 2014-11-19 | 2014-11-19 | A kind of switch gate power adjustable multistage positioningly spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104499860B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109695391A (en) * | 2018-04-24 | 2019-04-30 | 青岛海尔股份有限公司 | Door closer and refrigerator with the door closer |
| CN109914956A (en) * | 2019-04-08 | 2019-06-21 | 台州市计量设备技术校准中心 | A kind of limit shaft and preparation method thereof on floor spring |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2327389A1 (en) * | 1972-05-29 | 1973-12-13 | Lucien Milly | DOOR FITTING |
| CN101975006A (en) * | 2010-10-28 | 2011-02-16 | 肇庆市志成气动有限公司 | Multifunctional floor spring |
| CN202081763U (en) * | 2011-05-31 | 2011-12-21 | 肇庆市志盛门控五金有限公司 | Floor spring with simple structure |
| EP2508703A2 (en) * | 2011-04-06 | 2012-10-10 | GEZE GmbH | Door closer |
| CN102906363A (en) * | 2010-03-29 | 2013-01-30 | 英格索兰安防技术有限公司 | Door closer |
| WO2013167915A1 (en) * | 2012-05-11 | 2013-11-14 | Konstantinos Stefanidis | Door closing mechanism bearing a system providing latching activation control at any position ranging from 12 to 0 degrees and a shaft tightening onto the cam system |
| CN204357252U (en) * | 2014-11-19 | 2015-05-27 | 湖州德冠门控有限公司 | A kind of adjustable multistage of power positioningly spring |
-
2014
- 2014-11-19 CN CN201410660425.5A patent/CN104499860B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2327389A1 (en) * | 1972-05-29 | 1973-12-13 | Lucien Milly | DOOR FITTING |
| CN102906363A (en) * | 2010-03-29 | 2013-01-30 | 英格索兰安防技术有限公司 | Door closer |
| CN101975006A (en) * | 2010-10-28 | 2011-02-16 | 肇庆市志成气动有限公司 | Multifunctional floor spring |
| EP2508703A2 (en) * | 2011-04-06 | 2012-10-10 | GEZE GmbH | Door closer |
| CN202081763U (en) * | 2011-05-31 | 2011-12-21 | 肇庆市志盛门控五金有限公司 | Floor spring with simple structure |
| WO2013167915A1 (en) * | 2012-05-11 | 2013-11-14 | Konstantinos Stefanidis | Door closing mechanism bearing a system providing latching activation control at any position ranging from 12 to 0 degrees and a shaft tightening onto the cam system |
| CN204357252U (en) * | 2014-11-19 | 2015-05-27 | 湖州德冠门控有限公司 | A kind of adjustable multistage of power positioningly spring |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109695391A (en) * | 2018-04-24 | 2019-04-30 | 青岛海尔股份有限公司 | Door closer and refrigerator with the door closer |
| CN109914956A (en) * | 2019-04-08 | 2019-06-21 | 台州市计量设备技术校准中心 | A kind of limit shaft and preparation method thereof on floor spring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104499860B (en) | 2016-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204357252U (en) | A kind of adjustable multistage of power positioningly spring | |
| CN202645218U (en) | Multifunctional hinge | |
| CN214365565U (en) | Damping mechanism for buffering hinge | |
| CN104499860A (en) | Floor spring with door opening and closing strength adjusting and multi-point positioning functions | |
| CN209891909U (en) | Hinge with lifting opening mechanism | |
| CN106050081A (en) | Folding safe combination door | |
| CN102478120A (en) | Rotary valve driving device | |
| CN103306562B (en) | Spiral rolling transmission mechanism | |
| CN214403163U (en) | Buffer gear of hinge | |
| CN213808891U (en) | Two-stage sealing throttle valve | |
| CN108699878A (en) | Shower house door open/close structure | |
| CN205559409U (en) | Spirally swinging hydraulic cylinder | |
| CN201605936U (en) | Cushion gemel | |
| CN203531598U (en) | One-way valve mechanism of door closer | |
| CN105972246A (en) | Novel manual diaphragm valve | |
| CN106121474A (en) | Folding safety composite door | |
| CN202174462U (en) | Grinding head mechanism of glass edge grinding rounding machine | |
| CN209671725U (en) | A kind of portable hydraulic headstock gear | |
| CN201103306Y (en) | Hydraulic hinge | |
| CN217898983U (en) | Linear-stroke pneumatic actuator | |
| CN204060292U (en) | Shaft type door closer and core body thereof | |
| CN214170286U (en) | Buffering adjustment mechanism of hinge | |
| CN215949206U (en) | Hidden door closer | |
| CN211874305U (en) | Upgradable large-gradient vertical-rotation falling type anti-flooding protective airtight door | |
| CN211313799U (en) | Spring hydraulic hinge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 313009, 1085 Yang Hong Road, Nanxun Town, Zhejiang, Huzhou Applicant after: Zhejiang Haida door control Co.,Ltd. Address before: 313009, 1085 Yang Hong Road, Nanxun Town, Zhejiang, Huzhou Applicant before: HUZHOU DEGUAN DOOR CONTROL Co.,Ltd. Address after: 313009, 1085 Yang Hong Road, Nanxun Town, Zhejiang, Huzhou Applicant after: HAIDA DOOR CONTROL CO.,LTD. Address before: 313009, 1085 Yang Hong Road, Nanxun Town, Zhejiang, Huzhou Applicant before: Zhejiang Haida door control Co.,Ltd. |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A multi-stage positioning floor spring with adjustable door opening and closing force Effective date of registration: 20220816 Granted publication date: 20161207 Pledgee: Nanxun Zhejiang rural commercial bank Limited by Share Ltd. Pledgor: HAIDA DOOR CONTROL CO.,LTD. Registration number: Y2022330001778 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |