CN114197978A - Lifting push-pull pulley device - Google Patents
Lifting push-pull pulley device Download PDFInfo
- Publication number
- CN114197978A CN114197978A CN202111597428.5A CN202111597428A CN114197978A CN 114197978 A CN114197978 A CN 114197978A CN 202111597428 A CN202111597428 A CN 202111597428A CN 114197978 A CN114197978 A CN 114197978A
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- base
- pull
- pulley
- plate
- rod
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- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 11
- 238000005096 rolling process Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D15/00—Suspension arrangements for wings
- E05D15/16—Suspension arrangements for wings for wings sliding vertically more or less in their own plane
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D15/00—Suspension arrangements for wings
- E05D15/16—Suspension arrangements for wings for wings sliding vertically more or less in their own plane
- E05D15/165—Details, e.g. sliding or rolling guides
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention relates to a lifting push-pull pulley device, which belongs to the technical field of building doors and windows and comprises a base and a pulley assembly, wherein one end of the pulley assembly is sequentially provided with a connecting rod, a pull rod and a transmission rod; the pulley assembly comprises two side plates which are arranged in parallel, pulleys are arranged between the side plates, side plate guide holes are formed in the side plates, and sliding blocks penetrating through the base guide holes are arranged between the side plate guide holes in the two side plates. The sliding block in the lifting push-pull pulley device provided by the invention can move obliquely under the guidance of the base guide hole, so that the pulley component can move up and down integrally, and the sliding of the sliding block is guided and restricted by the base guide hole, so that the problem that the sliding block is misplaced and clamped is not easy to occur, the service life of the push-pull door is prolonged, and the beneficial effects are obvious.
Description
Technical Field
The invention relates to a lifting push-pull pulley device, and belongs to the technical field of building doors and windows.
Background
In building aluminum alloy door and window, accessible promotion push-and-pull door has and does not occupy indoor outer space, can realize opening the advantage of door leaf by a large scale, therefore its application is very extensive. The lifting sliding door generally drives a transmission structure through rotating a handle, and then the transmission structure drives a sliding pulley to move up and down, so that the movement of a door leaf is controlled. When the push-pull pulley moves downwards, the door leaf can move under the driving of the pulley; when the push-pull pulley moves upwards, the door leaf stops moving.
In the existing sliding door, after a pulley in a door leaf moves for a long time, the problem that a structure near the pulley is blocked easily occurs. Because the structure that the guide pulley moves up and down usually adopts fixed knot to construct, if taking place the dislocation among the removal process in this kind of fixed structure that sets up, will be in the dead state of card, if rotate the door leaf handle hard this moment and carry out pulley lifting operation, can cause structural damage, lead to the unable problem that moves up and down of pulley. The sliding door can be overhauled only by being disassembled after the fault occurs, so that the use is inconvenient. Therefore, how to improve the existing structure of the lifting push-pull pulley to reduce the occurrence of blocking is of great significance for prolonging the service life of the push-pull door.
Disclosure of Invention
Therefore, the lifting push-pull pulley device provided by the invention has the advantages that the sliding block is guided through the base guide hole on the base boss, the sliding control on the sliding block is improved, the problem that the sliding block is easy to misplace and block due to unconstrained movement is solved, and the service life of the push-pull door is prolonged. In order to achieve the above purpose, the invention provides the following technical scheme:
a lifting push-pull pulley device comprises a base and a pulley assembly, wherein one end of the pulley assembly is sequentially provided with a connecting rod, a pull rod and a transmission rod, the base extends downwards to form a base boss, and the base boss is provided with a base guide hole which is obliquely arranged; the pulley assembly comprises two side plates which are arranged in parallel, pulleys are arranged between the side plates, side plate guide holes are formed in the side plates, and sliding blocks penetrating through the base guide holes are arranged between the side plate guide holes in the two side plates.
As an improvement of the scheme, the base guide hole is of an arc-shaped structure, and the sliding block can slide along the inner wall of the base guide hole.
As an improvement of the scheme, one side of the slide block, which is close to the side plate, extends into the side plate guide hole to form a slide block guide post.
As an improvement of the scheme, the side plate guide holes are obliquely arranged, and the oblique direction of the side plate guide holes is consistent with that of the base guide holes.
As an improvement of the scheme, a rail bracket is arranged below the base boss.
As an improvement of the scheme, one side of the transmission rod is provided with a first hook and a second hook, a hook gap is formed between the first hook and the second hook, the pull rod is provided with a pull rod bulge extending into the hook gap, and the hook gap of the transmission rod is movably connected with the pull rod bulge of the pull rod.
As an improvement of the scheme, the outer sides of the transmission rod and the pull rod are provided with bottom plates, edges of two sides of each bottom plate extend outwards to form side faces of the bottom plates, and the inner sides of the side faces of the bottom plates are provided with limiting convex edges for guiding the transmission rod to vertically slide.
As an improvement of the scheme, the upper cover of the bottom plate is provided with a cover plate, the cover plate is provided with a cover plate connecting hole, the bottom plate is provided with a bottom plate connecting hole corresponding to the cover plate connecting hole, and the bottom plate connecting hole is fixedly connected with the cover plate connecting hole through a bolt.
As an improvement of the scheme, the pull rod is provided with a strip-shaped hole, the cover plate is provided with a cover plate protrusion extending into the strip-shaped hole, and the cover plate connecting hole is formed in the cover plate protrusion.
As an improvement of the scheme, the connecting rod is movably connected with the pull rod through a connecting plate, and the connecting rod is connected with the side plate of the pulley component through a connecting rod rotating shaft.
The lifting push-pull pulley device provided by the invention comprises a base and a pulley assembly, wherein the base extends downwards to form a base boss, a base guide hole which is obliquely arranged is formed in the base boss, the pulley assembly comprises two side plates, a pulley is arranged between the side plates, side plate guide holes are formed in the side plates, a sliding block which penetrates through the base guide hole is arranged between the side plate guide holes in the two side plates, and the sliding block can obliquely move under the guide of the base guide hole, so that the sliding of the pulley assembly is integrally moved up and down.
Drawings
FIG. 1 is a schematic view of a lifting push-pull pulley device in combination with a rail according to the present invention;
FIG. 2 is a schematic view of a lifting push-pull pulley apparatus according to the present invention;
FIG. 3 is a schematic view of a lifting push-pull pulley device according to the present invention with the base plate and the transmission rod hidden;
FIG. 4 is a schematic view of FIG. 3 from below;
FIG. 5 is a schematic view of a lifting push-pull pulley device of the present invention with the base plate and the drive rod combined;
FIG. 6 is a schematic view of the internal structure of a lifting push-pull pulley device according to the present invention;
FIG. 7 is a schematic view of the side plate hidden in FIG. 3;
FIG. 8 is a schematic view of a base and cover combination of a lift push-pull pulley apparatus of the present invention;
FIG. 9 is a schematic view of FIG. 8 from below;
FIG. 10 is a schematic view of a pulley assembly and link combination of a lift push-pull pulley apparatus of the present invention;
fig. 11 is a schematic view of fig. 10 as viewed from below.
In the figure: 10-base, 11-base boss, 12-base guide hole, 13-pulley limit protrusion, 20-side plate, 21-pulley, 22-slider, 30-link, 31-link, 32-pull rod, 40-cover, 41-cover protrusion, 42-cover connection hole, 50-base plate, 51-base plate side, 52-limit bead, 53-base plate connection hole, 60-transmission rod, 61-first hook, 62-second hook, 63-hook gap, 70-door lock, 71-lock hole, 80-track platform, 81-track, 101-pulley relief hole, 111-track holder, 201-side plate guide hole, 211-pulley shaft, 212-track rolling surface, 221-slider guide post, 301-connecting rod rotating shaft, 321-pull rod projection and 322-strip-shaped hole.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the present specification, the terms "upper", "lower", "inner" and "outer" are used for clarity of description only, and are not intended to limit the scope of the present invention, and changes or modifications in the relative relationship therebetween may be made without substantial changes in the technical content.
In the description of the embodiments that follow, unless explicitly stated or limited otherwise, the terms "disposed," "connected," and the like are to be construed broadly and include, for example, "connected" that may be either fixedly connected or detachably connected, or integrally formed; may be mechanically coupled, may be indirectly coupled through intervening media, may communicate between elements, or may be in an interactive relationship between elements, unless expressly defined otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
As shown in fig. 1, 2, 3, 4, and 7, the present invention provides a lifting push-pull pulley device, which includes a base 10 and a pulley assembly, wherein one end of the pulley assembly is sequentially provided with a connecting rod 30, a pull rod 32, and a transmission rod 60, the base 10 extends downward to form a base boss 11, and the base boss 11 is provided with a base guide hole 12 disposed obliquely; the pulley assembly comprises two side plates 20 which are arranged in parallel, a pulley 21 is arranged between the side plates 20, side plate guide holes 201 are formed in the side plates 20, and a sliding block 22 penetrating through the base guide hole 12 is arranged between the side plate guide holes 201 in the two side plates 20.
The pulley assembly in this application fixes pulley 21 below base 10 through two curb plates 20, and pulley 21 can roll along track 81 below the door leaf, and the pulley 21 figure between two curb plates 20 can be designed as required. For example, a structural design of two pulleys 21 may be adopted, the sliding block 22 is located between the two pulleys 21, when the pulleys 21 need to be moved upwards or downwards, the sliding block 22 between the side plates 20 may slide obliquely along the base guide hole 12 by pushing and pulling the side plates 20, and the sliding block 22 between the side plates 20 receives a pushing force or a pulling force, so that the side plates 20 slide obliquely as a whole, and at this time, the pulleys 21 between the side plates 20 also move obliquely along the side plates 20.
A rail platform 80 is arranged below the pulley 21, a rail rolling surface 212 is arranged on the pulley 21, a rail 81 matched with the rail rolling surface 212 is arranged on the rail platform 80, and the pulley 21 can move transversely along the rail 81. When the slide block 22 moves to the highest position of the base guide hole 12, the pulley 21 will be separated from the lower track 81, and at this time, the door leaf cannot move transversely through the pulley 21; when the sliding block 22 moves to the lowest position of the base guide hole 12, the pulley 21 returns to the rail 81 again, and the door leaf can move laterally through the pulley 21.
The base guide hole 12 may be designed to have an arc structure, and the sliding block 22 can slide along the inner wall of the base guide hole 12. Adopt the arc structure can increase the stroke of base guiding hole 12 to the arc structure can improve the restraint effect to slider 22, avoids slider 22 to deflect in base guiding hole 12 and leads to the dislocation.
Further, as shown in fig. 10 and 11, one side of the slider 22 close to the side plate 20 extends into the side plate guide hole 201 to form a slider guide post 221; the side plate guide holes 201 are obliquely arranged, and the oblique direction is consistent with the base guide holes 12. In this embodiment, the slider guide post 221 of the slider 22 may be disposed in the side plate guide hole 201 in a fixed connection or a movable connection manner.
When the fixed connection mode is adopted, the slider guide post 221 is fixed in the side plate guide hole 201, and the side plate 20 and the slider 22 move synchronously.
When the movable connection mode is adopted, the slider guide post 221 can slide along the side plate guide hole 201, and this structure has an advantage that when the slider 22 moves to the highest point or the lowest point of the base guide hole 12, if the slider 22 needs to move in the opposite direction, the side plate 20 needs to move a distance (i.e. the length distance of the side plate guide hole 201) first, and then the side plate guide hole 201 and the slider guide post 221 can be attached together to drive the slider guide post 221 to move. This articulated structure does not affect the up and down movement of the pulley 21, since the movement of the slider 22 is still controlled; secondly when slider 22 and base guiding hole 12 take place the dead trouble of card, still can drive curb plate 20 behind the handle of turning door leaf and sway in a section distance (that is to say the length distance of curb plate guiding hole 201) and rock, can make curb plate 20 produce through rotating the handle repeatedly and rock, and then strike slider guide pillar 221 repeatedly and make the dead slider 22 of card not hard up of emergence to solve the dead problem of slider 22 card fast. This kind of structure adopts fixed connection's mode more convenient and practical for slider 22 and curb plate 20, can solve the dead problem of slider 22 card fast through rotating the handle, need not unpack the door leaf apart.
As shown in fig. 8 and 9, a rail bracket 111 is provided below the base boss 11; the pulley 21 is connected with the two side plates 20 through a pulley rotating shaft 211, and the pulley 21 is provided with a track rolling surface 212. When the pulley 21 moves up to the highest position, the rail bracket 111 can be supported on the rail 81, and the rail bracket 111 has two functions: firstly, the base 10 can be supported, for example, a rail bracket 111 made of soft rubber material can be used to flexibly support the base 10; second, when the pulley 21 moves upward to the highest position, the rail bracket 111 can increase the friction force of the door leaf moving on the rail 81, thereby acting to prevent the door leaf from sliding. When the pulley 21 moves down to the lowest position, the rail rolling surface 212 comes into contact with the rail 81 gradually, and the pulley 21 rolls by the pulley rotating shaft 211.
A pulley limiting protrusion 13 is arranged on one side, close to the pulley 21, of the base boss 11; when the pulley 21 moves towards the base boss 11, the rail rolling surface 212 is gradually attached to the pulley limiting protrusion 13; a pulley avoidance hole 101 is formed on the base 10 at a position close to the pulley limit protrusion 13. In this solution, the pulley limit protrusion 13 is used to limit the movement of the pulley 21, and since the upward moving track of the pulley 21 is consistent with the inclined direction of the base guide hole 12, the pulley 21 needs to be stopped and limited by the pulley limit protrusion 13 when moving up to the vicinity of the highest point, so as to protect the pulley 21 to a certain extent. The pulley escape hole 101 of the base 10 functions to escape the pulley 21 that moves up to the highest point.
As shown in fig. 5 and 6, one end of the pulley assembly is sequentially provided with a connecting rod 30, a pull rod 32 and a transmission rod 60, one side of the transmission rod 60 is provided with a first hook 61 and a second hook 62, a hook gap 63 is formed between the first hook 61 and the second hook 62, the pull rod 32 is provided with a pull rod protrusion 321 extending into the hook gap 63, and the hook gap 63 of the transmission rod 60 is movably connected with the pull rod protrusion 321 of the pull rod 32. The first hook 61 and the second hook 62 on one side of the transmission rod 60 can be stamped out of the transmission rod 60, and the hook gap 63 between the first hook 61 and the second hook 62 can accommodate the restraining drawbar protrusion 321.
A door lock 70 of the door leaf is arranged at one end, far away from the pull rod 32, of the transmission rod 60, a lock hole 71 is formed in the door lock 70, and a handle of the door leaf is arranged at the position of the lock hole 71; the connecting rod 30 and the side plate 20 of the pulley assembly can be connected through a connecting rod rotating shaft 301; the connecting rod 30 and the pull rod 32 can be movably connected through a connecting plate 31, the connecting plate 31 can be made of a plate body with a triangular structure, one corner of the triangle is a fulcrum, the other two corners of the triangle are respectively connected with the connecting rod 30 and the pull rod 32, when the connecting rod 30 or the pull rod 32 is subjected to external force, the connecting rod 30 or the pull rod 32 can rotate by taking the fulcrum as a rotating shaft, and the rotation is similar to lever movement. When the handle of the door leaf is rotated, the driving rod 60, the pull rod 32, the connecting plate 31 and the connecting rod 30 are driven by the handle, and then the two side plates 20 of the pulley assembly are driven by the connecting rod 30, so that the upward movement and the downward movement of the pulley 21 are adjusted.
In the conventional lifting push-pull pulley device, the transmission rod 60 and the pull rod 32 are fixedly connected by bolts or screws, when the pull rod 32 drives the connecting rod 30 and the pulley 21 to move up and down, because the pull rod 32 is movably connected with the connecting rod 30 by the connecting plate 31, the pull rod 32 can slightly deflect around the connecting plate 31, the traditional pull rod 32 adopting the fixed connection can generate internal stress at the fixedly connected bolts or screws under the deflection action, after the door leaf is used for a long time, cracks are easily generated at the fixedly connected position of the bolts or screws, and further, the danger of fracture is caused, the transmission structure fault is caused, and the problem that the door leaf cannot normally push and pull to slide is caused.
In order to solve the above problem, the driving rod 60 and the pulling rod 32 are movably connected. First, a first hook 61 and a second hook 62 are provided at one side of the transmission rod 60, a hook gap 63 is provided between the first hook 61 and the second hook 62, and a pull rod protrusion 321 extending into the hook gap 63 is provided on the pull rod 32. When the pulley 21 moves up and down, the connecting rod 30 follows the side plate 20, and the angle of the pull rod 32 is slightly deflected under the lever action of the connecting plate 31. Even if the pull rod protrusion 321 slightly deflects, the hook gap 63 can also better restrict and limit the pull rod protrusion 321, and the pull rod 32 is driven to move in the vertical direction in the vertical movement process of the transmission rod 60. The transmission rod 60 is usually connected to the handle of the door leaf. The movable connecting structure with the pull rod protrusions 321 matched with the hook gaps 63 can avoid the problem that the traditional structure is easy to break, so that the service life and the stability of the transmission structure are improved.
The transmission rod 60 and the pull rod 32 are provided with a bottom plate 50 at the outer side, two side edges of the bottom plate 50 extend outwards to form a bottom plate side surface 51, and a limit convex rib 52 for guiding the transmission rod 60 to slide vertically is arranged at the inner side of the bottom plate side surface 51. In the scheme, the number of the limiting convex ribs 52 is two, the limiting convex rib 52 is arranged on the inner side of each bottom plate side face 51, and the limiting convex ribs 52 are used for guiding the transmission rod 60 to vertically move and preventing the transmission rod 60 from deviating in the moving process.
Further, the cover plate 40 covers the bottom plate 50, the cover plate 40 is provided with a cover plate connecting hole 42, the bottom plate 50 is provided with a bottom plate connecting hole 53 corresponding to the cover plate connecting hole 42, and the bottom plate connecting hole 53 is fixedly connected with the cover plate connecting hole 42 through a bolt. In order to prevent the bolt from interfering with the movement of the pull rod 32, a strip-shaped hole 322 may be formed in the pull rod 32, a cover plate protrusion 41 extending into the strip-shaped hole 322 is formed on the cover plate 40, and a cover plate connection hole 42 is formed on the cover plate protrusion 41. In this embodiment, the base plate 50 and the cover plate 40 can encapsulate and protect the pull rod 32 and the transmission rod 60, the base plate 50 and the cover plate 40 are fixedly connected by bolts, and the bolts can be disposed between the base plate connection holes 53 and the cover plate connection holes 42. Set up bar hole 322 on the pull rod 32, bar hole 322's effect is for supplying the bolt to pass through, produces the interference with the bolt when avoiding pull rod 32 to remove.
Although the present invention has been described in detail hereinabove with reference to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made to the embodiments of the present invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. The utility model provides a promote push-and-pull pulley gear, includes base (10) and loose pulley assembly, loose pulley assembly one end has set gradually connecting rod (30), pull rod (32) and transfer line (60), its characterized in that: the base (10) extends downwards to form a base boss (11), and the base boss (11) is provided with a base guide hole (12) which is obliquely arranged; the pulley component comprises two side plates (20) which are arranged in parallel, a pulley (21) is arranged between the side plates (20), side plate guide holes (201) are formed in the side plates (20), and a sliding block (22) penetrating through the base guide hole (12) is arranged between the side plate guide holes (201) in the two side plates (20).
2. A lifting push-pull pulley device according to claim 1, characterized in that the base guide hole (12) is of an arc-shaped configuration, the sliding block (22) being able to slide along the inner wall of the base guide hole (12).
3. A lifting push-pull pulley device according to claim 1, characterised in that the side of the slider (22) adjacent to the side plate (20) extends into the side plate guide hole (201) forming a slider guide post (221).
4. A lifting push-pull pulley device according to claim 3, characterised in that the side plate guiding holes (201) are obliquely arranged and in the same direction as the base guiding holes (12).
5. A lifting push-pull pulley device according to claim 1, characterised in that there is a rail bracket (111) below the base boss (11).
6. A lifting push-pull pulley device according to claim 1, characterized in that the transmission rod (60) has a first hook (61) and a second hook (62) on one side, a hook gap (63) is provided between the first hook (61) and the second hook (62), the pull rod (32) has a pull rod protrusion (321) extending into the hook gap (63), and the hook gap (63) of the transmission rod (60) is movably connected with the pull rod protrusion (321) of the pull rod (32).
7. A lifting push-pull pulley device according to claim 6, characterized in that the drive rod (60) and the pull rod (32) are provided with a base plate (50) on the outside, the two side edges of the base plate (50) extend outwards to form base plate sides (51), and the inside of the base plate sides (51) is provided with a limiting rib (52) for guiding the drive rod (60) to slide vertically.
8. A lifting push-pull pulley device according to claim 7, characterized in that the cover plate (40) is covered on the base plate (50), the cover plate (40) is provided with a cover plate connecting hole (42), the base plate (50) is provided with a base plate connecting hole (53) corresponding to the cover plate connecting hole (42), and the base plate connecting hole (53) and the cover plate connecting hole (42) are fixedly connected by a bolt.
9. A lifting push-pull pulley device according to claim 8, characterized in that the pull rod (32) is provided with a strip-shaped hole (322), the cover plate (40) is provided with a cover plate protrusion (41) extending into the strip-shaped hole (322), and the cover plate connection hole (42) is provided on the cover plate protrusion (41).
10. A lifting push-pull pulley arrangement according to claim 6, characterized in that the connection between the link (30) and the pull rod (32) is via a connection plate (31) and that the connection between the link (30) and the side plate (20) of the pulley assembly is via a link rotation shaft (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111597428.5A CN114197978A (en) | 2021-12-24 | 2021-12-24 | Lifting push-pull pulley device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111597428.5A CN114197978A (en) | 2021-12-24 | 2021-12-24 | Lifting push-pull pulley device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114197978A true CN114197978A (en) | 2022-03-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111597428.5A Pending CN114197978A (en) | 2021-12-24 | 2021-12-24 | Lifting push-pull pulley device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114197978A (en) |
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| TWM454442U (en) * | 2012-12-26 | 2013-06-01 | Fang-Li Su | Pulley device with adjustable lifting function |
| US20150218860A1 (en) * | 2014-02-06 | 2015-08-06 | Timothy Goetze | Adjustable gear lock mechanism for a lift and slide door or window |
| CN204571637U (en) * | 2015-02-09 | 2015-08-19 | 广东坚朗五金制品股份有限公司 | Promote push-and-pull buffer and sliding door |
| KR20180000246U (en) * | 2016-07-14 | 2018-01-24 | (주)명진 | Locking device of a lifting type doors and windows |
| DE102020113741A1 (en) * | 2020-05-20 | 2021-11-25 | Maco Technologie Gmbh | FITTINGS FOR ADJUSTING THE HEIGHT OF A LIFTING DEVICE OF A LIFTING-SLIDING ELEMENT |
| CN213234666U (en) * | 2020-06-30 | 2021-05-18 | 宁波锐驰科技有限公司 | Push-and-pull door that bearing capacity is strong promotes structure |
| CN213359722U (en) * | 2020-07-17 | 2021-06-04 | 宁波锐驰科技有限公司 | Efficient promotes push-and-pull door assembly pulley |
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Application publication date: 20220318 |