CN110242197B - Gravity balanced anti-deflection shutter curtain - Google Patents
Gravity balanced anti-deflection shutter curtain Download PDFInfo
- Publication number
- CN110242197B CN110242197B CN201910594933.0A CN201910594933A CN110242197B CN 110242197 B CN110242197 B CN 110242197B CN 201910594933 A CN201910594933 A CN 201910594933A CN 110242197 B CN110242197 B CN 110242197B
- Authority
- CN
- China
- Prior art keywords
- side wall
- pulley module
- concave groove
- front side
- rear side
- 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.)
- Active
Links
- 230000005484 gravity Effects 0.000 title claims abstract description 27
- 238000004804 winding Methods 0.000 claims description 5
- 230000035882 stress Effects 0.000 description 13
- 230000006872 improvement Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 240000006240 Linum usitatissimum Species 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- 244000082204 Phyllostachys viridis Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- E06B9/303—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable with ladder-tape
-
- 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
- E06B9/32—Operating, guiding, or securing devices therefor
- E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives
-
- 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
- E06B2009/3222—Cordless, i.e. user interface without cords
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Blinds (AREA)
Abstract
The invention provides a gravity balanced anti-deflection shutter curtain, which comprises a fixing device, a plurality of blades and a connecting rope, wherein the fixing device comprises: the device comprises a baffle, a concave groove, a constant force spring, a fixed pulley module, a movable pulley module and a positioning guide device, wherein the movable pulley module is in sliding connection with the concave groove; the concave groove comprises a first front side wall, a first rear side wall and a first bottom wall; the constant force spring is arranged in the concave groove, one end of the constant force spring is connected with the baffle plate, and the other end of the constant force spring is connected with the movable pulley module; the gravity of all the blades in the balanced state is equal to the constant elastic force generated by the constant force spring; the fixed pulley module comprises a plurality of fixed pulleys; the number of the fixed pulleys is m; the movable pulley module comprises a second front side wall, a second rear side wall, a right side wall, a plurality of movable pulleys, a first extension part and a second extension part, wherein the first extension part and the second extension part are used for fixing the stress direction of the movable pulley module; the number of the movable pulleys is n, and m=n is more than or equal to 3; the first extension part is connected with the second front side wall in an embedded way; the second extension is connected with the second rear side wall in an embedded mode.
Description
Technical Field
The invention belongs to the field of blinds, and particularly relates to a gravity balanced anti-deflection blind.
Background
The shutter curtain is divided into a fixed type and a movable type, is formed by connecting and folding a plurality of thin sheets, has the functions of ventilation, shading and sound insulation, and can also shade sunlight and cool, regulate light and decorate rooms. The shutter curtain is made of various materials such as bamboo chips, wood chips, glass steel sheets, aluminum alloy sheets, plasticized sheets and flax sheets which are popular in the market in time.
The blind curtain in the prior art mostly adopts the pull rope to control the lifting of the blind curtain, adjusts the shielding height and the lighting degree of the blind curtain, requires larger force to pull the pull rope, is troublesome to operate, and the exposed pull rope can be wound around the neck part of a human body and other accidents, especially forms potential safety hazards for parents and children, and also influences the attractiveness; a few of the blind curtains which utilize gravity balance are easy to deflect in the internal components and the stress direction, so that the service performance and stability of the blind curtains are poor, the service life of the blind curtains is influenced, and the use experience of users is poor.
Disclosure of Invention
The present invention is directed to the above-mentioned problems with the prior art, and provides a gravity balanced anti-deflection blind.
The invention solves the technical problems by the following technical means:
The utility model provides a gravity balance's anti-deviation formula shutter curtain, includes fixing device, a plurality of blade, the connecting rope of following vertical direction interval distribution, fixing device includes: the device comprises a baffle, a concave groove, a constant force spring for generating constant elasticity, a fixed pulley module, a movable pulley module which is connected with the concave groove in a sliding way, and a positioning guide device for preventing a connecting rope from winding;
the baffle is connected with the right end part of the concave groove in an embedded way;
the concave groove comprises a first front side wall, a first rear side wall and a first bottom wall;
the constant force spring is arranged in the concave groove, one end of the constant force spring is connected with the baffle, and the other end of the constant force spring is connected with the movable pulley module; the gravity of all the blades in the balanced state is equal to the constant elastic force generated by the constant force spring;
The fixed pulley module is connected with the left end part of the concave groove in an embedded mode; the fixed pulley module comprises two positioning plates, a plurality of fixed pulleys arranged between the two positioning plates and a first limiting plate arranged between adjacent fixed pulleys; the number of the fixed pulleys is m;
The movable pulley module comprises a second front side wall, a second rear side wall, a right side wall, a plurality of movable pulleys, a second limiting plate arranged between adjacent movable pulleys, a first extension part and a second extension part, wherein the first extension part and the second extension part are used for fixing the stress direction of the movable pulley module; the number of the movable pulleys is n, and m=n is more than or equal to 3; the first extension part is connected with the second front side wall in an embedded way; the second extension is connected with the second rear side wall in an embedded mode.
As an improvement of the technical scheme, the positioning guide device is arranged between the fixed pulley module and the movable pulley module and is in sliding connection with the concave groove; the positioning and guiding device comprises a third front side wall, a third rear side wall, a top wall, a second bottom wall, through holes with the same number as that of the movable pulleys and third limiting plates arranged between the adjacent through holes.
As an improvement of the technical scheme, the length of the through hole is d, the width of the through hole is h, the length of the part of the connecting rope positioned in the through hole is L, and the angle formed by the connecting rope and the length of the through hole is theta; wherein, the maximum value of θ is θ 1,0≤θ≤θ1,
According to the geometric relationship:
Obtaining
The range of θ is determined, and the ranges of the length d and the width h of the through hole are determined in conjunction with the sliding range of the positioning guide.
As an improvement of the above technical solution, the number of fixed pulleys m is 4, and the number of movable pulleys n is 4, i.e. m=n=4.
As an improvement of the technical scheme, the fixed end of the connecting rope is arranged on the fixed pulley module, and the free end of the connecting rope leaves from the fixed pulley module.
As an improvement of the above technical solution, all the movable pulleys are coaxially arranged between the second front side wall and the second rear side wall.
As an improvement of the above technical solution, at least one movable pulley is disposed between the first extension portion and the second extension portion, and the other movable pulleys are coaxially disposed between the first front side wall and the second rear side wall.
As an improvement of the above technical solution, the second front sidewall is slidably connected with the first front sidewall; the second rear side wall and the first rear side wall are connected in a sliding manner.
As an improvement of the technical scheme, the first front side wall is provided with a first sliding rail, and the second front side wall is matched with the first sliding rail; the first rear side wall is provided with a second sliding rail, the second sliding rail is a D-shaped opening rail, and the second rear side wall is matched with the second sliding rail.
As an improvement of the above technical solution, the baffle includes a first pull ring; the right side wall comprises a second pull ring; one end part of the constant force spring is provided with a first hook matched with the first pull ring, and the other end part of the constant force spring is provided with a second hook matched with the second hook; the first pull ring is a U-shaped ring or a semicircular ring; the second pull ring is a U-shaped ring or a semicircular ring.
The beneficial effects of the invention are as follows: the invention has high aesthetic property, simple operation, no potential safety hazard and no need of using a pull rope, and the blades are in a gravity balance state when no external force exists by arranging the concave groove, the constant force spring (the generated constant elastic force is equal to the gravity born by all the blades), the fixed pulley module, the movable pulley module, the first extension part, the second extension part and other components, so that the movable pulley module can not deflect, the stress direction of the movable pulley module is fixed, the service performance and the stability of the blind curtain are improved, and the service life of the blind curtain is prolonged.
Drawings
FIG. 1 is a schematic view of a blind (with all of its slats retracted) according to an embodiment of the present invention;
FIG. 2 is a schematic view of a blind (with its vanes partially open) according to an embodiment of the present invention;
FIG. 3 is a schematic view (top view) of a fixing device (constant force spring in initial state) according to an embodiment of the present invention;
FIG. 4 is a schematic view (top view) of a fixing device (blind in use) according to an embodiment of the present invention;
Fig. 5 is a schematic structural view of a fixed pulley module according to an embodiment of the present invention;
Fig. 6 is a schematic structural diagram of a movable pulley module according to an embodiment of the invention;
Fig. 7 is a schematic structural view of a movable pulley module according to another embodiment of the invention;
Fig. 8 is a schematic diagram (right side view) of a structure in which the concave groove and the movable pulley module are matched according to an embodiment of the present invention;
fig. 9 is a schematic structural view of a connecting rope passing through a through hole according to an embodiment of the present invention;
fig. 10 is a schematic structural view of a connecting rope passing through a through hole according to an embodiment of the present invention;
FIG. 11 is a schematic view of a structure of a connecting rope passing through a through hole according to an embodiment of the present invention;
FIG. 12 is a schematic view of a configuration of a concave groove and a positioning guide according to an embodiment of the present invention;
In the figure: 1-a fixing device; 11-a baffle; 12-a first pull ring; 2-leaves; 3-connecting ropes; 4-a concave groove; 41-a first front side wall; 42-a first rear sidewall; 43-a first bottom wall; 5-a constant force spring; 51-a first hook; 52-a second hook; 6-a fixed pulley module; 61-positioning plate; 62-fixed pulley; 63-a first limiting plate; 7-a movable pulley module; 71-a second front side wall; 72-a second rear sidewall; 73-right side wall; 74-a second tab; 75-a movable pulley; 76-a second limiting plate; 77-a first extension; 78-a second extension; 8-positioning and guiding device; 81-a third front side wall; 82-a third rear sidewall; 83-top wall; 84-a second bottom wall; 85-through holes; 86-third limiting plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
The constant force spring 5 is a spring which can keep constant elastic force in a corresponding stroke, and is called a constant force spring, and the use mode of the constant force spring is linear motion. Compared with the common compression or extension spring, the spring has very constant elasticity, can output the elasticity close to a straight line, and ensures that the product cannot change due to the change of the elasticity in the use process.
As shown in fig. 1 to 10, the gravity balanced anti-offset blind according to the present embodiment includes a fixing device 1, a plurality of blades 2 distributed at intervals along a vertical direction, and a connecting rope 3, wherein the fixing device 1 includes: the device comprises a baffle 11, a concave groove 4, a constant force spring 5 for generating constant elasticity, a fixed pulley module 6, a movable pulley module 7 which is in sliding connection with the concave groove 4, and a positioning guide device 8 for preventing the connecting rope 3 from winding;
the baffle 11 is connected with the right end of the concave groove 4 in an embedded way, so that the installation and the disassembly are convenient, and the assembly efficiency is improved; the baffle 11 comprises a first pull ring 12;
The concave groove 4 comprises a first front side wall 41, a first rear side wall 42 and a first bottom wall 43, so as to accommodate the constant force spring 5, the fixed pulley module 6, the movable pulley module 7 and the positioning guide 8;
The constant force spring 5 is arranged in the concave groove 4, one end part of the constant force spring 5 is provided with a first hook 51 matched with the first pull ring 12, and the other end part of the constant force spring is provided with a second hook 52, so that the end parts of the constant force spring 5 are connected with the baffle 11 and the movable pulley module 7 respectively; the gravity of all the blades 2 in the balanced state is equal to the constant elastic force generated by the constant force springs 5, calculation and multiple experimental tests are carried out according to parameters such as the width, the length, the density and the number of the blades 2 and factors such as the constant elastic force and the stroke of the constant force springs 5, the length, the width and the number of the blades 2 corresponding to the constant force springs 5 are tested, the effect that the gravity of all the blades 2 is equal to the constant elastic force generated by the constant force springs 5 is achieved, and the blades 2 are in the balanced state when the blades are static due to the force balance, namely the blades 2 cannot move up and down when no external force exists; when the shutter curtain needs to be opened, the blades 2 at the bottom are held by hands, a downward force is applied to the blades, the blades 2 move downwards, the application of the force is stopped, the blades 2 stop moving and are in a static and balanced state, and the weight force applied to all the blades 2 is equal to the constant elastic force generated by the constant force spring 5; when the blind is required to be folded, the blades 2 are lifted upwards by hands, the blades 2 move upwards, the application of the upward force is stopped, the blades 2 are stopped moving and are in a static and balanced state, because the gravity received by all the blades 2 is equal to the constant elastic force generated by the constant force spring 5, that is, the positions of the blades 2 in the vertical direction are changed by the hand, namely, the mutual conversion of kinetic energy and gravitational potential energy is carried out, so that the opening and folding degree of the blind is adjusted, and when no external force is interfered, the gravity received by all the blades 2 is equal to the constant elastic force generated by the constant force spring 5, so that the blades 2 are in a static and balanced state;
The fixed pulley module 6 is connected with the left end part of the concave groove 4 in an embedded way, so that the fixed pulley module is convenient to install and disassemble, and the assembly efficiency is improved; the fixed pulley module 6 includes two positioning plates 61, a plurality of fixed pulleys 62 disposed between the two positioning plates 61, a first stopper plate 63 disposed between adjacent fixed pulleys 62, the number of the fixed pulleys 62 being m, thereby defining a position and an axial direction of each fixed pulley 62;
The movable pulley module 7 comprises a second front side wall 71, a second rear side wall 72, a right side wall 73, a plurality of movable pulleys 75, a second limiting plate 76 arranged between the adjacent movable pulleys 75, a first extension part 77 and a second extension part 78 for fixing the stress direction of the movable pulley module 7, wherein the second limiting plate 76 limits the position and the axial direction of each movable pulley 62, the first extension part 77 and the second extension part 78 are convenient for increasing the contact area between the movable pulley module 7 and the concave groove 4, when the movable pulley 75 is subjected to torsion, namely the movable pulley module 7 is subjected to torsion for deflecting the movable pulley module, the torsion is transmitted to the first extension part 77 and the second extension part 78, and the concave groove 4 is fixed because the torsion is directly contacted with the first front side wall 41 and the first rear side wall 42 of the concave groove 4 respectively, so that the torsion is reduced to zero, the movable pulley module 7 cannot deflect or move due to zero torsion, and the stress direction of the movable pulley module 7 is ensured to be fixed, and the service performance and stability of the shutter are improved; the number of the movable pulleys 75 is n, m=n is more than or equal to 3, and n strands of connecting ropes 3 bear the gravity borne by all blades 2, so that each strand of connecting rope 3 respectively bears one-n gravity, and n is more than or equal to 3, so that the stress stability of the connecting ropes 3 and the service stability of the blind are improved, and the service life of the blind is prolonged; the right side wall 73 includes a second tab 74 that mates with the second hanger 52; the first extension part 77 is connected with the second front side wall 71 in an embedded manner, the second extension part 78 is connected with the second rear side wall 72 in an embedded manner, so that the assembly efficiency is improved, in addition, the blind is convenient to replace when the wear is serious, and only the first extension part 77 and/or the second extension part 78 are replaced without replacing the whole movable pulley module 7, so that the cost is reduced, and the usability of the blind is improved.
The invention has high aesthetic property, simple operation, no potential safety hazard and no need of using a pull rope, and the blades 2 are in a gravity balance state when no external force exists by arranging the concave groove 4, the constant force spring 5 (the generated constant elastic force is equal to the gravity borne by all the blades 2), the fixed pulley module 6, the movable pulley module 7, the first extension part 77, the second extension part 78 and other components, so that the movable pulley module 7 can not deflect, the stress direction of the movable pulley module 7 is fixed, the service performance and the stability of the blind are improved, and the service life of the blind is prolonged.
As shown in fig. 9-11, the positioning and guiding device 8 is disposed between the fixed pulley module 6 and the movable pulley module 7 and is slidably connected with the concave groove 4, the positioning and guiding device 8 includes a third front side wall 81, a third rear side wall 82, a top wall 83, a second bottom wall 84, through holes 85 with the same number as the movable pulley 75, and a third limiting plate 86 disposed between adjacent through holes 85, so that the connecting rope 3 passing through the through holes 85 between the fixed pulley module 6 and the movable pulley module 7 can limit and guide the connecting rope 3, the stress direction of the movable pulley module 7 is fixed, the connecting rope 3 is prevented from being wound together, the stress direction of the movable pulley 75 and the movable pulley module 7 is influenced, in addition, the connecting rope 3 is prevented from being wound together during assembly, and the assembly speed and the effect and the working efficiency are improved, the positioning and guiding device 8 cooperates with the first extension 77 and the second extension 78, so that the stress direction of the movable pulley module 7 is more fixed and can not deflect, and the stability of the shutter and the service performance and stability of the shutter are improved.
Setting the length of the through hole 85 along the x-axis direction, the width of the through hole 85 along the y-axis direction, the length of the through hole 85 being d, the width of the through hole 85 being h, the connecting rope 3 passing through the through hole 85, the length of the portion of the connecting rope 3 located in the through hole 85 being L, the angle formed by the connecting rope 3 and the length of the through hole 85 being θ, wherein, as shown in fig. 9, the maximum value of θ is θ 1, as shown in fig. 11, the connecting rope 3 is parallel to the length of the through hole 85, that is, the minimum value of θ is 0, and θ 1 is 0,
From the geometrical relationship in fig. 9, it can be seen that:
Obtaining
Thereby confirm the scope of θ, combine the sliding range of location guider 8 to confirm the scope of length d and width h of through-hole 85 to improve location guider 8's result of use, make movable pulley module 7's atress direction fixed, avoid connecting rope 3 winding together, prevent that through-hole 85's size mismatch, can not play good spacing and guide effect.
As shown in fig. 3-6, in a specific embodiment, the number m of the fixed pulleys 62 is 4, the number n of the movable pulleys 75 is 4, that is, m=n=4, all the movable pulleys 75 are coaxially arranged between the second front side wall 71 and the second rear side wall 72, the fixed ends of the connecting ropes 3 are arranged on the fixed pulley module 6, the free ends of the connecting ropes 3 leave from the fixed pulley module 6, the four connecting ropes 3 bear the gravity of all the blades 2, so that each connecting rope 3 bears one quarter of the gravity respectively, the stress of the connecting ropes 3 is stable, the service stability of the blind is improved, and the service life of the blind is prolonged.
In another specific embodiment shown in fig. 7, at least one movable pulley 75 is disposed between the first extension portion 77 and the second extension portion 78, and other movable pulleys 75 are coaxially disposed between the first front sidewall 71 and the second rear sidewall 72 to disperse stress, so that the first extension portion 77 and the second extension portion 78 have better limiting and orienting effects, ensuring that the movable pulley module 7 cannot deflect, fixing the stress direction of the movable pulley module 7, and in addition, avoiding winding of the connecting rope 3, and improving the assembly speed, the service performance and the stability of the blind.
The second front side wall 71 is slidably connected to the first front side wall 41, and the second rear side wall 72 is slidably connected to the first rear side wall 42, so as to slidably connect the movable pulley module 7 to the concave groove 4.
As shown in fig. 8, the first front side wall 41 is provided with a first sliding rail, the second front side wall 71 is matched with the first sliding rail, the first rear side wall 42 is provided with a second sliding rail, the second sliding rail is a D-shaped opening rail, the second rear side wall 72 is matched with the second sliding rail, so as to realize sliding connection of the second front side wall 71 and the first front side wall 41, and the second rear side wall 72 is slidably connected with the first rear side wall 42, so as to realize sliding connection of the movable pulley module 7 and the concave groove 4; set up the second slide rail and be D type opening rail in order to improve movable pulley module 7 sliding effect and stability in concave groove 4, simultaneously, increase the contact surface of lateral wall 72 and second slide rail behind the second carries out spacingly to lateral wall 72 behind the second to avoid movable pulley module 7 skew, improve the stability in use of shutter curtain, in addition, be convenient for assemble, improve packaging efficiency.
The concave groove 4 is PVC material, and the PVC material makes concave groove 4 have that chemical nature is stable, stand wear and tear ability reinforce, high temperature resistant, the surface is smooth, the quality is light, the color is various, durable, be difficult for wet, be convenient for processing, direct shaping's advantage, in addition, its inside first slide rail, second slide rail and third slide rail have that the inner wall is smooth, stable durable, ageing resistance and mechanical strength are good advantage.
As shown in fig. 3 and 4, the first pull ring 12 is a U-shaped ring or a semicircular ring, so that the first hook 51 is matched with the U-shaped ring or the semicircular ring; the second pull ring 74 is a U-shaped ring or a semicircular ring so as to facilitate the second hook 52 to be matched with the second hook; other shapes are also possible.
It is noted that relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. The utility model provides a gravity balance's anti-deviation formula blind, includes fixing device (1), a plurality of blade (2) that follow vertical direction interval distribution, connecting rope (3), its characterized in that, fixing device (1) include: the device comprises a baffle (11), a concave groove (4), a constant force spring (5) for generating constant elastic force, a fixed pulley module (6), a movable pulley module (7) which is in sliding connection with the concave groove (4), and a positioning guide device (8) for preventing the connecting rope (3) from winding;
the baffle (11) is connected with the end part of the right side of the concave groove (4) in an embedded way;
The concave groove (4) comprises a first front side wall (41), a first rear side wall (42) and a first bottom wall (43);
The constant force spring (5) is arranged in the concave groove (4), one end of the constant force spring is connected with the baffle (11), and the other end of the constant force spring is connected with the movable pulley module (7); the gravity of all the blades (2) in the balanced state is equal to the constant elastic force generated by the constant force spring (5);
The fixed pulley module (6) is connected with the left end part of the concave groove (4) in an embedded way; the fixed pulley module (6) comprises two positioning plates (61), a plurality of fixed pulleys (62) arranged between the two positioning plates (61), and a first limiting plate (63) arranged between adjacent fixed pulleys (62); the number of the fixed pulleys (62) is m;
The movable pulley module (7) comprises a second front side wall (71), a second rear side wall (72), a right side wall (73), a plurality of movable pulleys (75), a second limiting plate (76) arranged between adjacent movable pulleys (75), a first extension part (77) and a second extension part (78) which fix the stress direction of the movable pulley module (7); the number of the movable pulleys (75) is n, and m=n is more than or equal to 3; the first extension part (77) is connected with the second front side wall (71) in an embedded way; the second extension (78) is connected with the second rear side wall (72) in an embedded manner;
the positioning guide device (8) is arranged between the fixed pulley module (6) and the movable pulley module (7) and is in sliding connection with the concave groove (4); the positioning guide device (8) comprises a third front side wall (81), a third rear side wall (82), a top wall (83), a second bottom wall (84), through holes (85) with the same number as that of the movable pulleys (75), and third limiting plates (86) arranged between adjacent through holes (85);
the length of the through hole (85) is d, the width of the through hole (85) is h, the length of the part of the connecting rope (3) positioned in the through hole (85) is L, and the angle formed by the connecting rope (3) and the length of the through hole (85) is theta; wherein, the maximum value of θ is θ 1,0≤θ≤θ1,0≤θ≤θ1
According to the geometric relationship:
Obtaining
Determining the range of theta, and determining the range of the length d and the width h of the through hole (85) in combination with the sliding range of the positioning guide device (8);
at least one movable pulley (75) is arranged between the first extension part (77) and the second extension part (78), and the other movable pulleys (75) are coaxially arranged between the first front side wall (71) and the second rear side wall (72);
The second front side wall (71) is in sliding connection with the first front side wall (41); the second rear side wall (72) is in sliding connection with the first rear side wall (42);
The first front side wall (41) is provided with a first sliding rail, and the second front side wall (71) is matched with the first sliding rail; the first rear side wall (42) is provided with a second sliding rail, the second sliding rail is a D-shaped opening rail, and the second rear side wall (72) is matched with the second sliding rail.
2. A gravity balanced anti-deflection blind according to claim 1, wherein: the number m of the fixed pulleys (62) is 4, and the number n of the movable pulleys (75) is 4, namely m=n=4.
3. A gravity balanced anti-deflection blind according to claim 1, wherein: the fixed end of the connecting rope (3) is arranged on the fixed pulley module (6); the free end of the connecting rope (3) leaves from the fixed pulley module (6).
4. A gravity balanced anti-deflection blind according to claim 1, wherein: the baffle (11) comprises a first pull ring (12); the right side wall (73) comprises a second pull ring (74); one end part of the constant force spring (5) is provided with a first hook (51) matched with the first pull ring (12), and the other end part of the constant force spring is provided with a second hook (52) matched with the second hook (52); the first pull ring (12) is a U-shaped ring or a semicircular ring; the second pull ring (74) is a U-shaped ring or a semicircular ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910594933.0A CN110242197B (en) | 2019-07-03 | 2019-07-03 | Gravity balanced anti-deflection shutter curtain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910594933.0A CN110242197B (en) | 2019-07-03 | 2019-07-03 | Gravity balanced anti-deflection shutter curtain |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110242197A CN110242197A (en) | 2019-09-17 |
| CN110242197B true CN110242197B (en) | 2024-04-26 |
Family
ID=67890820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910594933.0A Active CN110242197B (en) | 2019-07-03 | 2019-07-03 | Gravity balanced anti-deflection shutter curtain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110242197B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946240A (en) * | 2020-08-24 | 2020-11-17 | 安徽宝盈家居有限公司 | Double-layer constant force spring type honeycomb curtain without pull rope |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2353877Y (en) * | 1998-12-23 | 1999-12-15 | 财团法人工业技术研究院 | Constant-force balanced shutter-lifting mechanism |
| CN1300914A (en) * | 2001-01-22 | 2001-06-27 | 彭颂凯 | Neutral balance mechanism of graviatation and elasticity |
| CN2457317Y (en) * | 2000-11-14 | 2001-10-31 | 巨大有限公司 | Blind curtain without pull cord |
| CA2332702A1 (en) * | 2001-01-29 | 2002-07-29 | Jumbo Surplus Corporation | Lifting mechanism for a cordless venetian blind |
| EP1903174A1 (en) * | 2006-09-12 | 2008-03-26 | Nien Made Enterprise Co., Ltd. | Device for winding a suspension cord of a blind |
| CN201042369Y (en) * | 2007-03-07 | 2008-04-02 | 庆丰富实业股份有限公司 | Improved structure for shrinking curtain body |
| CN101638972A (en) * | 2008-07-29 | 2010-02-03 | 庆丰富实业股份有限公司 | Curtain body lifting control device and curtain body steering control device |
| CN102777702A (en) * | 2012-07-11 | 2012-11-14 | 扬州东方吊架有限公司 | Anti-deflection constant-force spring support device |
| DE102013204119A1 (en) * | 2013-03-11 | 2014-09-11 | Ke-Min Lin | Window-blind arrangement and associated string guide device |
| CN107288523A (en) * | 2016-04-13 | 2017-10-24 | 溧阳新元窗帘制品有限公司 | A kind of cordless blind curtain and its method of work |
| CN107701078A (en) * | 2017-10-31 | 2018-02-16 | 李七妹 | A kind of constant force rebounding mechanism and the curtain using the constant force rebounding mechanism |
| CN210564278U (en) * | 2019-07-03 | 2020-05-19 | 安徽宝盈家居有限公司 | Gravity-balanced anti-deviation shutter curtain |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM506880U (en) * | 2014-11-18 | 2015-08-11 | Ya-Ling Huang | Rope-less curtain winding device |
-
2019
- 2019-07-03 CN CN201910594933.0A patent/CN110242197B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2353877Y (en) * | 1998-12-23 | 1999-12-15 | 财团法人工业技术研究院 | Constant-force balanced shutter-lifting mechanism |
| CN2457317Y (en) * | 2000-11-14 | 2001-10-31 | 巨大有限公司 | Blind curtain without pull cord |
| CN1300914A (en) * | 2001-01-22 | 2001-06-27 | 彭颂凯 | Neutral balance mechanism of graviatation and elasticity |
| CA2332702A1 (en) * | 2001-01-29 | 2002-07-29 | Jumbo Surplus Corporation | Lifting mechanism for a cordless venetian blind |
| EP1903174A1 (en) * | 2006-09-12 | 2008-03-26 | Nien Made Enterprise Co., Ltd. | Device for winding a suspension cord of a blind |
| CN201042369Y (en) * | 2007-03-07 | 2008-04-02 | 庆丰富实业股份有限公司 | Improved structure for shrinking curtain body |
| CN101638972A (en) * | 2008-07-29 | 2010-02-03 | 庆丰富实业股份有限公司 | Curtain body lifting control device and curtain body steering control device |
| CN102777702A (en) * | 2012-07-11 | 2012-11-14 | 扬州东方吊架有限公司 | Anti-deflection constant-force spring support device |
| DE102013204119A1 (en) * | 2013-03-11 | 2014-09-11 | Ke-Min Lin | Window-blind arrangement and associated string guide device |
| CN107288523A (en) * | 2016-04-13 | 2017-10-24 | 溧阳新元窗帘制品有限公司 | A kind of cordless blind curtain and its method of work |
| CN107701078A (en) * | 2017-10-31 | 2018-02-16 | 李七妹 | A kind of constant force rebounding mechanism and the curtain using the constant force rebounding mechanism |
| CN210564278U (en) * | 2019-07-03 | 2020-05-19 | 安徽宝盈家居有限公司 | Gravity-balanced anti-deviation shutter curtain |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110242197A (en) | 2019-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2402544B1 (en) | Blind with looped blind sheet for adjusting opacity | |
| US20120267056A1 (en) | Winding device for cordless roman shade | |
| US7950437B2 (en) | Window covering | |
| US8708023B2 (en) | Cordless blind assembly | |
| US20150292261A1 (en) | Roller curtain structure | |
| CN110242197B (en) | Gravity balanced anti-deflection shutter curtain | |
| US20110192557A1 (en) | Safety ring for a window blind | |
| CN106193979B (en) | A kind of torque force adjusting mechanism and its structure of rolling | |
| EP2149667B1 (en) | Window covering having at least one deformable connector | |
| CN210564278U (en) | Gravity-balanced anti-deviation shutter curtain | |
| CN216110473U (en) | Lifting curtain capable of achieving self-balancing convenient control | |
| EP3092362B1 (en) | Anti-mosquito net system for fixed and articulated lower guide | |
| CN212614437U (en) | Double-layer constant force spring type honeycomb curtain without pull rope | |
| CN201835732U (en) | External hanging hidden screen window for push-pull window | |
| US11261657B1 (en) | Window blind | |
| KR101128056B1 (en) | Window Blind | |
| CN214576665U (en) | Semi-shading honeycomb curtain | |
| CN214564513U (en) | Pull-rope-free type shading curtain for vehicle | |
| CN210564281U (en) | Positioning and guiding device of shutter | |
| CN203783422U (en) | Vertically-pullable dual-layer pleated blind structure | |
| CN207004395U (en) | A kind of casement and Roman shade for being used to make Roman shade | |
| CN203175337U (en) | Multifunctional louver window | |
| US20240076934A1 (en) | Retaining sheet and venetian blind using the same | |
| CN203347662U (en) | Novel blind window with shading and ventilation functions | |
| CN216517734U (en) | Fastening type curtain |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |