CN112814553A - Tension converter - Google Patents
Tension converter Download PDFInfo
- Publication number
- CN112814553A CN112814553A CN202110110619.8A CN202110110619A CN112814553A CN 112814553 A CN112814553 A CN 112814553A CN 202110110619 A CN202110110619 A CN 202110110619A CN 112814553 A CN112814553 A CN 112814553A
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- China
- Prior art keywords
- rope
- winding wheel
- driving
- rope winding
- driven
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- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
- E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
- E06B9/32—Operating, guiding, or securing devices therefor
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
- E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
- E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
- E06B9/32—Operating, guiding, or securing devices therefor
- E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
Abstract
A tension converter relates to a technology for changing tension, and is characterized by comprising a bracket, an active rope winding wheel and a passive rope winding wheel which are rotatably arranged on the bracket, an active pull rope, a passive pull rope and a constant force telescopic pull rope mechanism. Compared with the prior art, the invention has the advantages that the tension can be changed, and the tension in the process of applying force is changed from large change to small change.
Description
Technical Field
The invention relates to a technology for changing the magnitude of a pulling force.
Background
Some occasions where pulling force is generated, such as the release or retraction of a blind, the pulling force caused by the blind can be changed greatly, for example, when the blind is released from being retracted completely, because all the gravity of the blind acts on a pulling rope, the pulling force is large at the moment, along with the release of the blind, the blind retracted at the bottom is less and less, the pulling force acting on the pulling rope is smaller and less, and along with the increase of the weight of the adopted blind, the change of the pulling force can be increased, the impact force when the release of the blind is started is large, the releasing pulling rope needs to be pulled with extra force to control the releasing amplitude, and at the final stage of the release, the incomplete release can be caused due to the small pulling force, so that the retraction of the blind is inconvenient, and the retraction of the blind can not be easily realized.
Disclosure of Invention
The invention aims to provide a tension converter which can change the tension so as to change the tension from large to small in the process of applying force.
The invention is realized by the following steps that the rope winding device comprises a box-shaped bracket with an active rope guiding window, an active rope winding wheel and a passive rope winding wheel which are rotationally arranged on the box-shaped bracket, an active rope winding, a passive rope winding and pulling mechanism and a constant force telescopic rope pulling mechanism, wherein the active rope winding wheel and the passive rope winding wheel are linked through a transmission mechanism, the active rope winding wheel is in a round table shape, the passive rope winding wheel is in a round table shape, the outer side surface of the round table-shaped active rope winding wheel is provided with a thread-shaped rope groove, the outer side surface of the round table-shaped passive rope winding wheel is provided with a thread-shaped rope groove, one end of the active rope winding is connected with the end with the largest diameter of the round table-shaped active rope winding wheel, one end of the passive rope winding wheel is connected with the end with the largest diameter of the round table-shaped, when the driving rope winding wheel rotates, the driving rope penetrating through the driving rope guiding-out window is released from the thread-shaped rope groove of the driving rope winding wheel, the driven rope winding wheel synchronously rotates, the driven rope is wound on the thread-shaped rope groove of the driven rope winding wheel, when the driving rope winding wheel rotates, the driving rope penetrating through the driving rope guiding-out window is wound on the thread-shaped rope groove of the driving rope winding wheel, the driven rope winding wheel synchronously rotates, and the driven rope is released from the thread-shaped rope groove of the driven rope winding wheel; or one end of the driving rope is connected with the end with the smallest diameter of the circular truncated cone-shaped driving rope winding wheel, one end of the driven rope is connected with the end with the smallest diameter of the circular truncated cone-shaped driven rope winding wheel, the driving rope winding wheel and the driven rope winding wheel are linked, when the driving rope winding wheel rotates, the driving rope penetrating through the driving rope guiding window is released from the thread-shaped rope groove of the driving rope winding wheel, the driven rope winding wheel synchronously rotates, the driven rope winding wheel is wound on the thread-shaped rope groove of the driven rope winding wheel, when the driving rope winding wheel rotates, the driving rope penetrating through the driving rope guiding window is wound on the thread-shaped rope groove of the driving rope winding wheel, the driven rope winding wheel synchronously rotates, and the driven rope winding wheel is released from the thread-shaped rope groove of the driven rope winding wheel.
When the force applying device is used on a force applying object which moves along with the movement and the pulling force of which is increased, for example, when the window shutter is released from top to bottom by utilizing the self gravity of the window shutter, the window shutter is in an initial release state, at the moment, one end of the driving pull rope is connected with the end with the largest diameter of the circular table-shaped driving rope winding wheel and is wound to the end with the smallest diameter of the driving rope winding wheel along the thread-shaped rope groove from the end with the largest diameter, the other end of the driving pull rope is connected with the window shutter, one end of the driven pull rope is connected with the end with the largest diameter of the circular table-shaped driven rope winding wheel, the other end of the driven pull rope is connected with the constant force telescopic pull rope mechanism and is applied with a constant pulling force, the pulling force applied to the driving pull rope by the window shutter is decreased from the largest along with the release of the window shutter, meanwhile, the driving pull rope is released from the driving rope winding, the diameter of the corresponding active rope winding wheel of the active rope winding on the active rope winding wheel is increased, so that even if the pulling force applied by the window shade is reduced along with the release of the window shade, the moment for driving the active rope winding wheel to rotate by the active rope winding does not become smaller according to the reduction of the pulling force and the same proportion (along with the increase of the diameter of the corresponding active rope winding wheel of the active rope winding on the active rope winding wheel, the moment for driving the active rope winding wheel to rotate is increased when the same pulling force is applied, therefore, the effect of the reduction of the pulling force can be offset by the increase of the diameter when the pulling force is reduced, and the change of the moment can be reduced), meanwhile, the passive rope winding wheel linked with the active rope winding wheel synchronously rotates, the passive rope winding is wound on the passive rope winding wheel, along with the winding of the passive rope on the passive rope winding wheel, the diameter of the corresponding passive rope winding wheel of the passive rope winding wheel is reduced, and the moment, therefore, under the action of the driving rope winding wheel, the driven rope winding wheel, the driving pull rope and the driven pull rope, the constant-force telescopic pull rope mechanism counteracts the change of the pulling force from big to small in the force application process, and the change of the pulling force is slow, so that the invention purpose of the patent application is realized.
Similarly, if the force application object is applied to the force application object which moves with the smaller tension along with the movement, the force application object is in the initial moving state, at this time, one end of the driving pull rope is connected with the end with the smallest diameter of the round table-shaped driving rope winding wheel and is wound to the end with the largest diameter of the driving rope winding wheel along the thread-shaped rope groove from the end with the smallest diameter, and the other end of the driving pull rope is connected with the force application object, one end of the driven pull rope is connected with the end with the smallest diameter of the round table-shaped driven rope winding wheel, the other end of the driven pull rope is connected with the constant force telescopic pull rope mechanism and is applied with a constant tension, the tension applied to the driving pull rope by the force application object is increased from the smaller one along with the movement of the force application object, and simultaneously, the driving pull rope is released from the driving rope winding wheel and moves from the point, the diameter of the corresponding active rope winding wheel wound on the active rope winding wheel by the active rope becomes smaller, so that even if the pulling force applied by the louver window curtain becomes larger along with the movement of the force application object, the moment for driving the active rope winding wheel to rotate by the active rope winding wheel does not become larger in proportion according to the larger pulling force (as the diameter of the corresponding active rope winding wheel wound on the active rope winding wheel becomes smaller by the active rope winding wheel, the moment for driving the active rope winding wheel to rotate becomes smaller under the same pulling force, therefore, the effect of the larger pulling force is offset by the smaller diameter when the pulling force becomes larger, and the change of the moment becomes slower), meanwhile, the passive rope winding wheel linked with the active rope winding wheel synchronously rotates, so that the passive rope winding wheel is wound on the passive rope winding wheel, as the passive rope winding wheel is wound on the passive rope winding wheel, the diameter of the corresponding passive rope winding wheel wound on the passive rope winding wheel by the passive rope becomes larger, and the, therefore, under the action of the driving rope winding wheel, the driven rope winding wheel, the driving pull rope and the driven pull rope, the constant-force telescopic pull rope mechanism counteracts the change of the pulling force from small to large in the force application process, and the change of the pulling force is slowed down, so that the invention aims of the patent application are achieved.
The box-shaped bracket is adopted, so that the integral installation and use of the technology are facilitated.
Preferably, the driving wrap sheave and the driven wrap sheave are rotatably provided side by side on the box-shaped bracket.
Preferably, the end of the circular truncated cone shaped driving winding wheel with the smallest diameter is positioned at the same end as the end of the circular truncated cone shaped driven winding wheel with the largest diameter.
The transmission mechanism comprises a driving gear and a driven gear which are meshed with each other, the driving gear is arranged at the end part of the driving rope winding wheel, and the driven gear is arranged at the end part of the driven rope winding wheel. Of course, the transmission mechanism may be a belt, pulley, or other transmission technique.
Preferably, two pairs of driving gears and driven gears are respectively arranged at two ends of the driving rope winding wheel and the driven rope winding wheel.
Preferably, the constant force telescopic cord mechanism is a constant force spring, such as a coil spring type constant force spring, but may be other types of constant force springs. When the rope is used, under the combined action of constant tension and the tension of a moving force application object, the passive rope is wound on the passive rope winding wheel, and the constant force spring wound into a plurality of circles is pulled out to be in a straight line shape; or the pulled constant force spring is coiled back into a ring shape when the passive pulling rope is released from the passive rope winding wheel.
Or the constant force telescopic pull rope mechanism comprises a constant force spring and a rope winding drum, the other end of the passive pull rope is connected to the rope winding drum, and the rope winding drum is driven by the constant force spring to rotate. When the rope winding device is used, the constant-force spring enables the rope winding drum to have constant rolling force, the rope winding drum with constant rolling force enables the passive pulling rope to have constant pulling force, and under the combined action of the constant pulling force and the pulling force of the moving force application object, the passive pulling rope is released from the rope winding drum and wound on the passive rope winding wheel or the passive pulling rope is released from the passive rope winding wheel and wound on the rope winding drum.
Compared with the prior art, the invention has the advantages that the tension can be changed, and the tension in the process of applying force is changed from large change to small change.
Drawings
FIG. 1 is a schematic structural view of example 1 of the present invention;
FIG. 2 is a schematic structural diagram of example 2 of the present invention;
fig. 3 is a schematic diagram of the use of the present invention.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings and examples:
the first embodiment is as follows: as shown in fig. 1, the present invention comprises a box-shaped bracket 1 with an active rope guiding window 102 and a passive rope guiding window 101, an active rope winding wheel 2 and a passive rope winding wheel 3 rotatably arranged on the bracket 1, an active rope winding wheel 4, a passive rope winding wheel 5, and a constant force telescopic rope pulling mechanism 6, wherein the constant force telescopic rope pulling mechanism 6 can be arranged in the box-shaped bracket 1 or outside the box-shaped bracket 1, the active rope winding wheel 2 and the passive rope winding wheel 3 are linked through a transmission mechanism 7, the active rope winding wheel 2 is in a circular truncated cone shape, the passive rope winding wheel 3 is in a circular truncated cone shape, the outer side surface of the circular truncated cone-shaped active rope winding wheel 2 is provided with a thread-shaped rope groove 201, the outer side surface of the circular truncated cone-shaped passive rope winding wheel 3 is provided with a thread-shaped rope groove 301, one end 401 of the active rope winding wheel 4 is connected to the end 202 with the largest diameter of the circular truncated cone-shaped active, the other end 502 of the passive rope 5 is connected to the constant force rope stretching mechanism 6 after passing through the passive rope leading-out window 101 so as to obtain a constant pulling force, the active rope winding wheel 2 and the passive rope winding wheel 3 are linked, when the active rope winding wheel 2 rotates, the active rope 4 passing through the active rope leading-out window 102 is released from the thread-shaped rope groove 201 of the active rope winding wheel 2, the passive rope winding wheel 3 rotates synchronously, the passive rope 5 is wound on the thread-shaped rope groove 301 of the passive rope winding wheel 3, when the active rope winding wheel 2 rotates, the active rope 4 passing through the active rope leading-out window 102 is wound on the thread-shaped rope groove 201 of the active rope winding wheel 2, the passive rope winding wheel 3 rotates synchronously, and the passive rope 5 is released from the thread-shaped rope groove 301 of the passive rope winding wheel 3.
Preferably, the active 2 and passive 3 rope pulleys are arranged side by side in a rotating manner on the frame 1.
Preferably, the end 203 of the round table-shaped driving wrap wheel 2 with the smallest diameter is located at the same end as the end 302 of the round table-shaped driven wrap wheel 3 with the largest diameter.
The transmission mechanism 7 includes a driving gear 701 and a driven gear 702 which are engaged with each other, the driving gear 701 is provided at an end of the driving winding sheave 2 (including the end 203 of the circular truncated cone-shaped driving winding sheave 2 having the smallest diameter and the end 202 of the circular truncated cone-shaped driving winding sheave 2 having the largest diameter), and the driven gear 702 is provided at an end of the driven winding sheave 3 (including the end 303 of the circular truncated cone-shaped driven winding sheave 3 having the smallest diameter and the end 302 of the circular truncated cone-shaped driven winding sheave 3 having the largest diameter). Of course, the transmission mechanism may be a belt, pulley, or other transmission technique.
Preferably, two pairs of driving gears 701 and driven gears 702 are provided at both ends of the driving wrap sheave 2 and the driven wrap sheave 3, respectively.
Preferably, the constant force telescopic cord mechanism 6 is a constant force spring, such as a coil spring type constant force spring, but may be other types of constant force springs.
Alternatively, as shown in fig. 3, the constant force retractable cord mechanism 6 includes a constant force spring 601 and a cord drum 602, the other end 502 of the passive cord 5 is connected to the cord drum 602, the cord drum 602 is rotated by the constant force spring 601, the constant force spring 601 causes the cord drum 602 to have a constant winding force, and the cord drum 602 having a constant winding force causes the passive cord 5 to have a constant tension.
Preferably, the driving winding sheave 2 and the driven winding sheave 3 are made of plastic, and the driving gear 701 and the driven gear 702 are made of plastic.
As shown in fig. 3, when the present embodiment is used in a force-applying object moving with a pulling force increasing with the movement, such as a window blind released from top to bottom by its own weight, the window blind is in an initial release state, at this time, one end 401 of the driving rope 4 is connected to the end 202 with the largest diameter of the circular truncated cone-shaped driving rope winding wheel 2 and is wound from the end 202 with the largest diameter to the end 203 with the smallest diameter of the driving rope winding wheel 2 along the thread-shaped rope groove 201, and the other end of the driving rope is connected to the window blind 8, one end 501 of the passive rope is connected to the end 302 with the largest diameter of the circular truncated cone-shaped passive rope winding wheel 3, the other end 502 of the passive rope 5 is connected to the constant-force telescopic rope mechanism 6 and is applied with a constant pulling force, and as the window blind 8 is released, the pulling force applied to the driving rope 4 by the window blind 8, the driving rope 4 is released from the driving rope winding wheel 2, the diameter of the corresponding driving rope winding wheel 2 wound on the driving rope winding wheel 2 by the driving rope 4 is increased along with the movement of the point where the driving rope 4 is released from the thread-shaped rope groove 201 to the end 202 with the largest diameter of the driving rope winding wheel 2, thus even if the pulling force applied by the window blind 8 is reduced along with the release of the window blind 8, the moment for driving the driving rope winding wheel 2 to rotate by the driving rope 4 is not reduced in proportion according to the reduction of the pulling force (along with the increase of the diameter of the corresponding driving rope winding wheel 2 wound on the driving rope winding wheel 2 by the driving rope 4, the moment for driving the driving rope winding wheel 2 to rotate is increased along with the same pulling force, therefore, when the pulling force is reduced, the effect of the reduction of the pulling force is counteracted by the increase of the diameter, and the change of the moment is relieved), and meanwhile, the driven rope, the passive pull rope 5 is wound on the passive rope winding wheel 3, the diameter of the corresponding passive rope winding wheel 3 of the passive pull rope 5 wound on the passive rope winding wheel 3 is reduced along with the winding of the passive pull rope 5 on the passive rope winding wheel 3, and the moment of the constant force telescopic pull rope mechanism 6 acting on the passive rope winding wheel 3 through the passive pull rope 5 is reduced from large to small, so that the change of the pulling force from large to small in the force application process is counteracted under the action of the active rope winding wheel 2, the passive rope winding wheel 3, the active pull rope 4 and the passive pull rope 5 by the constant force telescopic pull rope mechanism 6, and the change of the pulling force is made to be gentle, thereby realizing the invention purpose of the patent application.
Example 2: as shown in fig. 2, one end 401 of the driving rope 4 is connected to the end 203 of the truncated cone-shaped driving rope winding wheel 2 with the smallest diameter, one end 501 of the passive rope 5 is connected to the end 303 of the truncated cone-shaped passive rope winding wheel 3 with the smallest diameter, the driving rope winding wheel 2 and the passive rope winding wheel 3 are interlocked, when the driving rope winding wheel 2 rotates, the driving rope 4 passing through the driving rope lead-out window 102 is released from the thread-shaped rope groove 201 of the driving rope winding wheel 2, the driven rope winding wheel 3 synchronously rotates, the driven pulling rope 5 is wound on the thread-shaped rope groove 301 of the driven rope winding wheel 3, when the driving rope winding wheel 2 passing through the driving rope guiding-out window 102 rotates to wind the driving rope 4 on the thread-shaped rope groove 201 of the driving rope winding wheel 2, the driven rope winding wheel 3 is synchronously rotated to release the driven rope 5 from the thread-shaped rope groove 301 of the driven rope winding wheel 3. The embodiment is suitable for the force application object which moves with the movement and the tension of which becomes smaller.
Claims (7)
1. A tension converter is characterized by comprising a box-shaped bracket with an active stay cord leading-out window, an active rope winding wheel and a passive rope winding wheel which are rotatably arranged on the box-shaped bracket, an active stay cord, a passive stay cord and a constant force telescopic stay cord mechanism, wherein the active rope winding wheel and the passive rope winding wheel are linked through a transmission mechanism, the active rope winding wheel is in a round table shape, the passive rope winding wheel is in a round table shape, the outer side surface of the round table-shaped active rope winding wheel is provided with a thread-shaped rope groove, the outer side surface of the round table-shaped passive rope winding wheel is provided with a thread-shaped rope groove, one end of the active stay cord is connected with the end with the largest diameter of the round table-shaped active rope winding wheel, one end of the passive stay cord is connected with the end with the largest diameter of the round table-shaped passive rope winding wheel, the other end of the passive, when the driving rope winding wheel rotates, the driving rope penetrating through the driving rope guiding-out window is released from the thread-shaped rope groove of the driving rope winding wheel, the driven rope winding wheel synchronously rotates, the driven rope is wound on the thread-shaped rope groove of the driven rope winding wheel, when the driving rope winding wheel rotates, the driving rope penetrating through the driving rope guiding-out window is wound on the thread-shaped rope groove of the driving rope winding wheel, the driven rope winding wheel synchronously rotates, and the driven rope is released from the thread-shaped rope groove of the driven rope winding wheel; or one end of the driving rope is connected with the end with the smallest diameter of the circular truncated cone-shaped driving rope winding wheel, one end of the driven rope is connected with the end with the smallest diameter of the circular truncated cone-shaped driven rope winding wheel, the driving rope winding wheel and the driven rope winding wheel are linked, when the driving rope winding wheel rotates, the driving rope penetrating through the driving rope guiding window is released from the thread-shaped rope groove of the driving rope winding wheel, the driven rope winding wheel synchronously rotates, the driven rope winding wheel is wound on the thread-shaped rope groove of the driven rope winding wheel, when the driving rope winding wheel rotates, the driving rope penetrating through the driving rope guiding window is wound on the thread-shaped rope groove of the driving rope winding wheel, the driven rope winding wheel synchronously rotates, and the driven rope winding wheel is released from the thread-shaped rope groove of the driven rope winding wheel.
2. Tension transformer according to claim 1, characterized in that the active and passive rope pulleys are rotatably arranged side by side on a carrier.
3. The tension transformer of claim 2, wherein the end of the frustoconical driving wrap pulley having the smallest diameter is located at the same end as the end of the frustoconical driven wrap pulley having the largest diameter.
4. Use of a tension transducer according to claim 3, characterized in that the transmission comprises a driving gear and a driven gear which are in engagement with each other, the driving gear being arranged at the end of the driving winding sheave and the driven gear being arranged at the end of the driven winding sheave.
5. The tension converter according to claim 4, wherein two pairs of driving gears and driven gears are provided at both ends of the driving winding wheel and the driven winding wheel, respectively.
6. A tension transducer as claimed in claim 1 or 2 or 3 or 4 or 5, wherein the constant force telescopic pull cord mechanism is a constant force spring.
7. A tension converter according to claim 1, 2, 3, 4 or 5, wherein the constant force telescopic pull rope mechanism comprises a constant force spring and a rope drum, the other end of the passive pull rope is connected to the rope drum, and the rope drum is driven by the constant force spring to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110110619.8A CN112814553B (en) | 2021-01-27 | 2021-01-27 | Tension converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110110619.8A CN112814553B (en) | 2021-01-27 | 2021-01-27 | Tension converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112814553A true CN112814553A (en) | 2021-05-18 |
| CN112814553B CN112814553B (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110110619.8A Active CN112814553B (en) | 2021-01-27 | 2021-01-27 | Tension converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112814553B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2455702A1 (en) * | 2003-01-24 | 2004-07-24 | Fred Regnery | Shutter blind |
| CN2878549Y (en) * | 2005-12-21 | 2007-03-14 | 吴沛煊 | Rolling screen type screen window capable of automatically extending yarn net |
| CN201024877Y (en) * | 2007-03-27 | 2008-02-20 | 林宗福 | Speed variator for assisting curtain cord operation |
| CN202031462U (en) * | 2011-04-11 | 2011-11-09 | 林宗福 | Improved curtain capable of being retracted and released conveniently |
| CN205743642U (en) * | 2016-01-29 | 2016-11-30 | 林子彦 | Self-locking type stay cord curtain structure |
| CN207553931U (en) * | 2017-10-27 | 2018-06-29 | 浙江宏鼎实业有限公司 | A kind of boosting mechanism of hollow glass louver |
| CN208486805U (en) * | 2018-07-03 | 2019-02-12 | 浙江宏鼎实业有限公司 | A kind of curtain without stretching wire |
-
2021
- 2021-01-27 CN CN202110110619.8A patent/CN112814553B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2455702A1 (en) * | 2003-01-24 | 2004-07-24 | Fred Regnery | Shutter blind |
| CN2878549Y (en) * | 2005-12-21 | 2007-03-14 | 吴沛煊 | Rolling screen type screen window capable of automatically extending yarn net |
| CN201024877Y (en) * | 2007-03-27 | 2008-02-20 | 林宗福 | Speed variator for assisting curtain cord operation |
| CN202031462U (en) * | 2011-04-11 | 2011-11-09 | 林宗福 | Improved curtain capable of being retracted and released conveniently |
| CN205743642U (en) * | 2016-01-29 | 2016-11-30 | 林子彦 | Self-locking type stay cord curtain structure |
| CN207553931U (en) * | 2017-10-27 | 2018-06-29 | 浙江宏鼎实业有限公司 | A kind of boosting mechanism of hollow glass louver |
| CN208486805U (en) * | 2018-07-03 | 2019-02-12 | 浙江宏鼎实业有限公司 | A kind of curtain without stretching wire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112814553B (en) | 2022-07-29 |
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