Pulley mechanism and door system comprising same

Abstract

The utility model discloses a pulley mechanism and a door system comprising the same. The pulley mechanism comprises a base used for being fixed to a door leaf, the base comprises a base plate, an end plate and two side plates, the end plate is formed by bending one end of the base plate, the two side plates are formed by bending the two sides of the base plate respectively, a cavity is defined by the base plate, the end plate and the two side plates, and first clamping structures are formed at the ends of the side plates; the first clamping structures of the two side plates are correspondingly clamped with the two sides of the end plate respectively; the rotating plate is arranged on the base plate, and a first pulley and a second pulley are arranged at the two ends, in the length direction, of the rotating plate correspondingly; the adjusting structure is in transmission connection with the rotating plate and used for driving the rotating plate to rotate on the horizontal plane so that the angle of the rotating plate can be changed relative to the base. In this way, the clamping structures between the end plate and the two side plates can improve the connection stability between the end plate and the two side plates, and therefore deformation of the joints between the end plate and the two side plates can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of door and window hardware, in particular to a pulley mechanism and a door system comprising the same. Background Art

[0002] The Chinese patent with the publication number CN216240219U discloses a pulley mechanism and a door system, which includes: a base, which is used to be fixed on the door leaf slot, and the base is provided with a first assembly hole; a rotating plate, which is arranged on the base, and the two ends of the rotating plate are respectively provided with a first pulley and a second pulley, and the rotating plate is provided with a second assembly hole between the first pulley and the second pulley, and a fastener is used to pass through the second assembly hole and the first assembly hole to fix the rotating plate and the base on the door leaf slot. The second assembly hole on the rotating plate is arranged between the first pulley and the second pulley, and the first assembly hole is correspondingly arranged on the base, and the fastener is used to realize the installation and fixation of the rotating plate and the base, thereby changing the previous method of setting threaded holes at both ends of the pulley mechanism, not only effectively reducing one assembly hole, but also no need to reserve assembly hole space at both ends of the pulley mechanism, so it is beneficial to shorten the length of the base, reduce the size of the pulley mechanism and reduce the manufacturing cost. However, the base is usually formed by bending a sheet metal member in one piece, and due to the reaction force of the track, the connection between the side plate and the end plate of the base is prone to deformation. Utility Model Content

[0003] In order to overcome at least one of the defects of the prior art described above, the utility model provides a pulley mechanism and a door system including the same, aiming to solve the problem that the connection between the side plate and the end plate of the integrally bent and formed base is prone to deformation.

[0004] The technical solution adopted by the utility model to solve the problem is:

[0005] The pulley mechanism includes: a base for being fixed on the door leaf, the base including a base plate, an end plate and two side plates, the end plate is formed by bending one end of the base plate, and the two side plates are respectively formed by bending two sides of the base plate, the base plate, the end plate and the two side plates are surrounded by a cavity, the ends of the side plates are formed with a first clamping structure, and the first clamping structures of the two side plates are respectively clamped with the two sides of the end plates; a rotating plate is arranged on the base plate, and the rotating plate is respectively provided with a first pulley and a second pulley at both ends in the length direction; an adjusting structure is transmission-connected to the rotating plate, and the adjusting structure is used to drive the rotating plate to rotate in a horizontal plane so that the rotating plate can change its angle relative to the base.

[0006] According to some embodiments of the utility model, the first clamping structure includes a first connecting block and a second connecting block, the first connecting block is connected to the end of the side plate, the second connecting block is connected to the first connecting block, an L-shaped groove is formed between the second connecting block and the first connecting block, and the L-shaped groove is clamped to the side wall of the end plate.

[0007] According to some embodiments of the utility model, the first connecting block is provided with a card interface, and a card connection block is protruded from the side wall of the end plate, and the card connection block is card-connected to the card interface.

[0008] According to some embodiments of the utility model, the adjustment structure includes an adjustment plate and a driving member for driving the adjustment plate to move in a horizontal direction, the adjustment plate is arranged between the rotating plate and the base plate, and a slot block clamping structure is arranged between the adjustment plate and the rotating plate; when the driving member drives the adjustment plate to move in a horizontal direction, the adjustment plate drives the rotating plate to rotate through the slot block clamping structure, so that the rotating plate can achieve an angle change relative to the base.

[0009] According to some embodiments of the utility model, the end plate is provided with a through hole, the adjustment plate is provided with a threaded hole, the driving member is a driving screw, the driving screw is passed through the through hole and extends into the cavity, the driving screw and the threaded hole are threadedly connected, and the head of the driving screw is located between the two second connecting blocks.

[0010] According to some embodiments of the utility model, the substrate is provided with a first adjustment groove connected to the cavity; a bending portion extends downward from one end of the adjustment plate, the bending portion extends into the cavity through the first adjustment groove, and the threaded hole is formed in the bending portion.

[0011] According to some embodiments of the utility model, the slot block clamping structure includes an arc-shaped guide groove and a protrusion slidably connected to the arc-shaped guide groove, one of the arc-shaped guide groove and the protrusion is arranged on the rotating plate, and the other of the arc-shaped guide groove and the protrusion is arranged on the adjusting plate.

[0012] According to some embodiments of the utility model, the pulley mechanism also includes a fastener, a first assembly hole is provided on the base plate, a second assembly hole is provided on the rotating plate between the first pulley and the second pulley, and the fastener is passed through the second assembly hole and the first assembly hole to connect the rotating plate and the base to the door leaf.

[0013] According to some embodiments of the present invention, the slot block clamping structures are provided in two groups and are symmetrically arranged with respect to the second assembly holes.

[0014] In addition, the utility model also provides a door system, including the pulley mechanism as described above, and also including a door leaf, wherein the pulley mechanism is arranged on the door leaf.

[0015] In summary, the pulley mechanism and the door system including the pulley mechanism provided by the utility model have at least the following technical effects:

[0016] The first pulley is slidably matched with a guide surface of the track, and the second pulley is slidably matched with another guide surface of the track. The assembly positions of the first pulley and the second pulley can be adjusted by rotating the rotating plate to adapt to tracks of different widths, so that the first pulley and the second pulley can respectively cooperate well with the corresponding guide surfaces, so that the pulley mechanism can guide the movement of the door leaf more stably. More importantly, the clamping structure between the end plate and the two side plates can improve the connection stability between the end plate and the two side plates, thereby avoiding deformation at the connection between the end plate and the two side plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the pulley mechanism of an embodiment of the utility model at a first viewing angle;

[0018] Figure 2 It is a structural schematic diagram of the pulley mechanism of an embodiment of the utility model at a second viewing angle;

[0019] Figure 3 It is a schematic diagram of the exploded structure of the pulley mechanism of the embodiment of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the base of an embodiment of the utility model;

[0021] Figure 5 It is a schematic structural diagram of a rotating plate and an adjusting plate according to an embodiment of the utility model.

[0022] The meanings of the reference numerals are as follows:

[0023] 1. Base; 11. Base plate; 111. First adjustment groove; 112. First assembly hole; 12. End plate; 121. Snap-fit ​​block; 122. Through hole; 13. Side plate; 14. Cavity; 15. First snap-fit ​​structure; 151. First connecting block; 1511. Snap interface; 152. Second connecting block; 153. L-shaped groove; 2. Rotating plate; 21. Second assembly hole; 3. Adjustment structure; 31. Adjustment plate; 311. Second adjustment groove; 312. Bending portion; 313. Threaded hole; 32. Driving member; 4. First pulley; 5. Second pulley; 6. Slot block snap-fit ​​structure; 61. Arc guide groove; 62. Protrusion; 7. Fastener. DETAILED DESCRIPTION

[0024] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0027] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0028] See also Figures 1 to 3 The utility model discloses a pulley mechanism, including: a base 1, which is used to be fixed on a door leaf, the base 1 includes a base plate 11, an end plate 12 and two side plates 13, the end plate 12 is formed by bending one end of the base plate 11, and the two side plates 13 are respectively formed by bending two sides of the base plate 11, the base plate 11, the end plate 12 and the two side plates 13 are surrounded by a cavity 14, and the ends of the side plates 13 are formed with a first clamping structure 15, and the first clamping structures 15 of the two side plates 13 are respectively clamped with the two sides of the end plate 12; a rotating plate 2 is arranged on the base plate 11, and the rotating plate 2 is respectively provided with a first pulley 4 and a second pulley 5 at both ends in the length direction; an adjusting structure 3 is transmission-connected to the rotating plate 2, and the adjusting structure 3 is used to drive the rotating plate 2 to rotate in a horizontal plane so that the rotating plate 2 can change its angle relative to the base 1.

[0029] The utility model provides a pulley mechanism, in which the first pulley 4 is slidably matched with a guide surface of a track, and the second pulley 5 is slidably matched with another guide surface of the track. The assembly positions of the first pulley 4 and the second pulley 5 can be adjusted by rotating the rotating plate 2 to adapt to tracks of different widths, so that the first pulley 4 and the second pulley 5 can respectively cooperate well with the corresponding guide surfaces, so that the pulley mechanism can guide the movement of the door leaf more stably. More importantly, the clamping structure between the end plate 12 and the two side plates 13 can improve the connection stability between the end plate 12 and the two side plates 13, thereby avoiding deformation of the connection between the end plate 12 and the two side plates 13.

[0030] like Figure 1and Figure 4 As shown, specifically, in this embodiment, the first clamping structure 15 includes a first connecting block 151 and a second connecting block 152, the first connecting block 151 is connected to the end of the side plate 13, the second connecting block 152 is connected to the first connecting block 151, preferably, an L-shaped groove 153 is formed between the second connecting block 152 and the first connecting block 151, and the L-shaped groove 153 is clamped to the side wall of the end plate 12, so that the clamping between the L-shaped groove 153 and the side wall of the end plate 12 is relatively stable, and the connection stability between the end plate 12 and the two side plates 13 is guaranteed and improved.

[0031] like Figure 1 and Figure 4 As shown, further, in this embodiment, in order to improve the clamping stability between the first clamping structure 15 and the side wall of the end plate 12, the first connecting block 151 is provided with a clamping interface 1511, and the side wall of the end plate 12 is protrudingly provided with a clamping block 121, and the clamping block 121 is clamped to the clamping interface 1511.

[0032] like Figure 2 , Figure 3 and Figure 5 As shown, preferably, in this embodiment, the adjustment structure 3 includes an adjustment plate 31 and a driving member 32 for driving the adjustment plate 31 to move in the horizontal direction. The adjustment plate 31 is arranged between the rotating plate 2 and the base plate 11. A slot block clamping structure 6 is arranged between the adjustment plate 31 and the rotating plate 2. When the driving member 32 drives the adjustment plate 31 to move in the horizontal direction, the adjustment plate 31 drives the rotating plate 2 to rotate through the slot block clamping structure 6, so that the rotating plate 2 can change its angle relative to the base 1. That is, the adjustment plate 31 can be driven to move by the driving member 32, so that the rotation angle of the rotating plate 2 can be controlled by the slot block clamping structure 6, thereby realizing the pulley adjustment function of the pulley mechanism. Such a configuration has the advantage of convenient operation.

[0033] like Figure 5 As shown, the slot block clamping structure 6 includes an arc-shaped guide groove 61 and a protrusion 62 slidably connected to the arc-shaped guide groove 61, one of which is arranged on the rotating plate 2, and the other of which is arranged on the adjusting plate 31. In one embodiment, as shown in the figure, the protrusion 62 is arranged on the rotating plate 2, and the arc-shaped guide groove 61 is arranged on the adjusting plate 31. When the adjusting structure 3 drives the adjusting plate 31 to move, the arc-shaped guide groove 61 is displaced to force the protrusion 62 to move along the track of the arc-shaped guide groove 61, thereby realizing the rotation of the rotating plate 2, which has the advantages of simple structure and reliable operation.

[0034] like Figure 1 , Figure 2 and Figure 3As shown, preferably, in this embodiment, the end plate 12 is provided with a through hole 122, the adjustment plate 31 is provided with a threaded hole 313, the driving member 32 is a driving screw rod, the driving screw rod is connected to the through hole 122 and extends into the cavity 14, the driving screw rod is threadedly connected to the threaded hole 313, and the head of the driving screw rod is located between the two second connecting blocks 152. When in use, the driving screw rod is screwed, and at this time, one end of the driving screw rod abuts against the end plate 12 to use the end plate 12 as a fulcrum, thereby pulling or pushing the adjustment plate 31 to move, and the structure is simple; more importantly, the two second connecting blocks 152 can play a role in limiting the driving screw rod, thereby avoiding the problem of the driving screw rod being tilted due to the reaction force of the track, and the working stability of the pulley mechanism can be guaranteed and improved.

[0035] like Figure 3 and Figure 4 As shown, preferably, in this embodiment, the base plate 11 is provided with a first adjustment groove 111 connected to the cavity 14; a bending portion 312 extends downward from one end of the adjustment plate 31, and the bending portion 312 extends into the cavity 14 through the first adjustment groove 111, and a threaded hole 313 is formed in the bending portion 312. In this way, the adjustment plate 31 can be set in a plate shape even when the threaded hole 313 is provided, which is conducive to saving materials. Further, in a preferred embodiment, the bending portion 312 and the adjustment plate 31 are integrally formed to improve the connection strength.

[0036] like Figure 1 and Figure 2 As shown, preferably, in this embodiment, the pulley mechanism further includes a fastener 7, a first assembly hole 112 is provided on the base plate 11, a second assembly hole 21 is provided on the rotating plate 2 between the first pulley 4 and the second pulley 5, and the fastener 7 is connected to the second assembly hole 21 and the first assembly hole 112 to connect the rotating plate 2 and the base 1 to the door leaf. In this way, by setting the second assembly hole 21 on the rotating plate 2 between the first pulley 4 and the second pulley 5, and correspondingly providing the first assembly hole 112 on the base plate 11, and using the fastener 7 to connect the second assembly hole 21 and the first assembly hole 112 to achieve the installation of the rotating plate 2 and the base 1 on the door leaf, thereby changing the previous method of setting the threaded holes 313 at both ends of the pulley mechanism, not only effectively reducing one assembly hole, but also no need to reserve assembly hole space at both ends of the pulley mechanism, so it is beneficial to shorten the length of the base 1, and then it is beneficial to reduce the size of the pulley mechanism and reduce the manufacturing cost.

[0037] Preferably, in this embodiment, a waist-shaped second adjustment groove 311 is provided on the adjustment plate 31 and the fastener 7 is inserted into the second adjustment groove 311. With such a configuration, on the one hand, one side of the adjustment plate 31 can be fixed by the fastener 7 to prevent the adjustment plate 31 from being offset when moving, and on the other hand, interference between the adjustment plate 31 and the fastener 7 can be avoided when the adjustment plate 31 moves.

[0038] More preferably, in this embodiment, two groups of slot block clamping structures 6 are provided and are symmetrically arranged with respect to the second assembly holes 21. Such an arrangement makes the force on the slot block clamping structures 6 more uniform and more effectively avoids the slot block clamping structures 6 from getting stuck.

[0039] In addition, this embodiment further provides a door system, including the pulley mechanism as described above, and also including a door leaf, wherein the pulley mechanism is arranged on the door leaf.

[0040] In summary, the pulley mechanism and the door system including the pulley mechanism disclosed in the present invention can at least bring the following beneficial technical effects:

[0041] 1) The clamping structure between the end plate 12 and the two side plates 13 can improve the connection stability between the end plate 12 and the two side plates 13, thereby avoiding deformation of the connection between the end plate 12 and the two side plates 13;

[0042] 2) The connection between the L-shaped groove 153 and the side wall of the end plate 12 is relatively stable, and the connection stability between the end plate 12 and the two side plates 13 is guaranteed and improved;

[0043] 3) A clamping block 121 is protruding from the side wall of the end plate 12, and the clamping block 121 is clamped to the clamping interface 1511 to further improve the clamping stability between the first clamping structure 15 and the side wall of the end plate 12;

[0044] 4) The two second connecting blocks 152 can limit the driving screw rod, thereby preventing the driving screw rod from tilting due to the reaction force of the track, and the working stability of the pulley mechanism can be guaranteed and improved.

[0045] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A pulley mechanism, characterized in that: include: A base (1) is used to be fixed on a door leaf, the base (1) comprising a base plate (11), an end plate (12) and two side plates (13), the end plate (12) being formed by bending one end of the base plate (11), the two side plates (13) being formed by bending two sides of the base plate (11), the base plate (11), the end plate (12) and the two side plates (13) forming a cavity (14), the end of the side plate (13) being formed with a first clamping structure (15), the first clamping structures (15) of the two side plates (13) being respectively clamped with two sides of the end plate (12); A rotating plate (2) is arranged on the base plate (11), and the rotating plate (2) is provided with a first pulley (4) and a second pulley (5) at both ends in the length direction thereof; An adjustment structure (3) is transmission-connected to the rotating plate (2), and the adjustment structure (3) is used to drive the rotating plate (2) to rotate in a horizontal plane so that the rotating plate (2) can achieve an angle change relative to the base (1).

2. The pulley mechanism according to claim 1, characterized in that: The first clamping structure (15) comprises a first connecting block (151) and a second connecting block (152); the first connecting block (151) is connected to the end of the side plate (13); the second connecting block (152) is connected to the first connecting block (151); an L-shaped groove (153) is formed between the second connecting block (152) and the first connecting block (151); and the L-shaped groove (153) is clamped to the side wall of the end plate (12).

3. The pulley mechanism according to claim 2, characterized in that: The first connection block (151) is provided with a card interface (1511), and a card connection block (121) is protrudingly provided on the side wall of the end plate (12), and the card connection block (121) is card-connected to the card interface (1511).

4. The pulley mechanism according to claim 2, characterized in that: The adjusting structure (3) comprises an adjusting plate (31) and a driving member (32) for driving the adjusting plate (31) to move in a horizontal direction, the adjusting plate (31) being arranged between the rotating plate (2) and the base plate (11), and a slot block clamping structure (6) being arranged between the adjusting plate (31) and the rotating plate (2); When the driving member (32) drives the adjusting plate (31) to move in the horizontal direction, the adjusting plate (31) drives the rotating plate (2) to rotate via the slot block clamping structure (6), so that the rotating plate (2) changes its angle relative to the base (1).

5. The pulley mechanism according to claim 4, characterized in that: The end plate (12) is provided with a through hole (122), the adjustment plate (31) is provided with a threaded hole (313), the driving member (32) is a driving screw, the driving screw is connected to the through hole (122) and extends into the cavity (14), the driving screw is threadedly connected to the threaded hole (313), and the head of the driving screw is located between the two second connecting blocks (152).

6. The pulley mechanism according to claim 5, characterized in that: The base plate (11) is provided with a first adjustment groove (111) connected to the cavity (14); one end of the adjustment plate (31) is bent to form a bent portion (312), the bent portion (312) extends into the cavity (14) through the first adjustment groove (111), and the threaded hole (313) is formed in the bent portion (312).

7. The pulley mechanism according to claim 4, characterized in that: The slot block clamping structure (6) comprises an arc-shaped guide groove (61) and a protrusion (62) slidably connected to the arc-shaped guide groove (61); one of the arc-shaped guide groove (61) and the protrusion (62) is arranged on the rotating plate (2); and the other of the arc-shaped guide groove (61) and the protrusion (62) is arranged on the adjusting plate (31).

8. The pulley mechanism according to claim 4, characterized in that: The pulley mechanism further comprises a fastener (7), a first assembly hole (112) is provided on the base plate (11), a second assembly hole (21) is provided on the rotating plate (2) between the first pulley (4) and the second pulley (5), and the fastener (7) is inserted into the second assembly hole (21) and the first assembly hole (112) to connect the rotating plate (2) and the base (1) to the door leaf.

9. The pulley mechanism according to claim 8, characterized in that: The slot block clamping structures (6) are provided in two groups and are arranged symmetrically with respect to the second assembly holes (21).

10. Door system, characterized in that, It comprises the pulley mechanism as described in any one of claims 1 to 9, and also comprises a door leaf, and the pulley mechanism is arranged on the door leaf.

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