A pulley assembly and a door and window system

Abstract

The utility model discloses a pulley assembly and door and window system. A pulley assembly, comprising: mounting structure, mounting structure includes first front mounting piece, corner piece, corner piece is connected with first front mounting piece rotation, first connecting piece, first connecting piece is connected with corner piece rotation, second front connecting piece, front pulley unit, front pulley unit includes second front mounting piece, front pulley and front lifting wheel, the second end of first connecting piece is connected with second front mounting piece rotation, and the both ends of second front connecting piece are connected with first front mounting piece and second front mounting piece rotation respectively, the rotation connection position of second front mounting piece and second front connecting piece is connected with front lifting wheel rotation, and the first front mounting piece is provided with front guide portion, and front lifting wheel rolls along front guide portion. A door and window system, including push -and -pull piece and fan piece and above -mentioned pulley assembly. The utility model makes the lifting of fan piece more smooth, laborsaving.

Description

Technical Field

[0001] This utility model belongs to the technical field of door and window systems, specifically relating to a pulley assembly and a door and window system. Background Technology

[0002] The use of lift-up sliding doors and windows in modern residences is increasing. Due to the diverse applications of these products, the sizes and specifications of the sashes (door or window sashes) vary. Furthermore, the widespread use of multi-layered glass, coupled with the need to integrate pulley structures into the sashes for lifting and lowering, generally results in heavier sashes. Lifting these sashes is difficult due to their weight and is prone to jamming. Utility Model Content

[0003] To overcome the shortcomings of the prior art, one of the objectives of this utility model is to provide a pulley assembly in which, during the movement of the front pulley unit relative to the first front mounting member, the front lifting wheel follows the second front connecting member and swings around the rotational connection center between the first front mounting member and the second front connecting member, thereby driving the entire front pulley unit to rise and fall relative to the first front mounting member; the front lifting wheel rotates around its own rotational center, so that during the swinging process of the front lifting wheel following the second front connecting member, the front lifting wheel can roll along the front guide portion to reduce the sliding friction between the front lifting wheel and the front guide portion, making the movement of the front pulley unit smoother, and the pushing force applied by the user to the push-pull member can be reduced by increasing the diameter of the front lifting wheel.

[0004] The second objective of this utility model is to provide a door and window system that uses the above-mentioned pulley assembly, making the lifting of the sash smoother and less strenuous.

[0005] One of the objectives of this utility model is achieved through the following technical solution: A pulley assembly, comprising: The mounting structure includes a first front mounting component; A corner component, the first end of which is rotatably connected to a first front mounting component, and the second end of which is rotatably connected to a push-pull component; The first connector, the first end of the first connector is rotatably connected to the third end of the corner piece; Second front connector; The front pulley unit includes a second front mounting member, a front pulley, and a front lifting wheel. The second end of the first connecting member is rotatably connected to the second front mounting member, and the two ends of the second front connecting member are rotatably connected to the first front mounting member and the second front mounting member, respectively. The second front mounting part and the second front connecting part are rotatably connected to a front lifting wheel, and the first front mounting part is provided with a front guide part, and the front lifting wheel rolls along the front guide part.

[0006] As an optional implementation, the first front mounting member includes a front body and a front support portion, with the front body extending in a first direction and the front support portion extending in a second direction. The first direction and the second direction are perpendicular to each other, and a front guide is provided at the angle between the front main body and the front support.

[0007] As an optional implementation, the front guide portion includes a first front curve portion, a second front curve portion, and a third front curve portion connected in sequence.

[0008] As an alternative implementation, the push-pull member extends along the second direction.

[0009] As an optional implementation, the mounting structure includes a first rear-mounted component; The pulley assembly includes a rear pulley unit and a second rear connector, with the front pulley unit and the rear pulley unit arranged along a first direction; The rear pulley unit includes a second rear mounting member, a rear pulley, and a rear lifting wheel. The two ends of the second rear connecting member are rotatably connected to the first rear mounting member and the second rear mounting member, respectively. The second rear mounting component and the second rear connecting component are rotatably connected by a rear lifting wheel. The second rear mounting component is provided with a rear guide portion, and the rear lifting wheel rolls along the rear guide portion.

[0010] As an optional implementation, the first rear mounting component includes a rear body and a rear support portion, with the rear body extending in a first direction and the rear support portion extending in a second direction. A rear guide is provided at the angle between the rear main body and the rear support.

[0011] As an optional implementation, the rear guide portion includes a first rear curved portion, a second rear curved portion, and a third rear curved portion connected in sequence.

[0012] As an optional implementation, the front pulley is rotatably connected to the second front mounting member, and the rear pulley is rotatably connected to the second rear mounting member.

[0013] As an optional implementation, the pulley assembly also includes a third connector that connects the second front mounting member and the second rear mounting member.

[0014] The second objective of this utility model is achieved by the following technical solution: A door and window system includes a sliding member, a sash member, and the aforementioned pulley assembly.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. During the movement of the front pulley unit relative to the first front mounting member, the front lifting wheel follows the second front connecting member and swings around the rotational connection center between the first front mounting member and the second front connecting member, thereby driving the entire front pulley unit to rise and fall relative to the first front mounting member; the front lifting wheel rotates around its own rotational center, so that during the swinging process of the front lifting wheel following the second front connecting member, the front lifting wheel can roll along the front guide part to reduce the sliding friction between the front lifting wheel and the front guide part, making the movement of the front pulley unit smoother, and the pushing force applied by the user to the push and pull member can be reduced by increasing the diameter of the front lifting wheel.

[0016] 2. The door and window system of this utility model adopts the above-mentioned pulley assembly, which makes the lifting of the sash more smooth and labor-saving. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a first-view structural diagram of the front pulley unit in the lifted state in Embodiment 1 of this utility model.

[0019] Figure 2 This is a second-view structural diagram of the front pulley unit in the lifted state in Embodiment 1 of this utility model.

[0020] Figure 3 This is a third-view structural diagram of the front pulley unit in the lifting state in Embodiment 1 of this utility model.

[0021] Figure 4 This is in Embodiment 1 of the present utility model Figure 3 Schematic cross-sectional view along the AA direction.

[0022] Figure 5 This is a schematic diagram of the cooperation between the front guide part and the front lifting wheel in Embodiment 1 of this utility model.

[0023] Figure 6 This is an exploded structural diagram of the first part of Embodiment 1 of this utility model.

[0024] Figure 7 This is an exploded structural diagram of the second part of Embodiment 1 of this utility model.

[0025] Figure 8This is a first-view structural diagram of the front pulley unit in the descending state in Embodiment 1 of this utility model.

[0026] Figure 9 This is a second-view structural schematic diagram of the front pulley unit in the descending state in Embodiment 1 of this utility model.

[0027] Figure 10 This is a third-view structural diagram of the front pulley unit in the descending state in Embodiment 1 of this utility model.

[0028] Figure 11 This is in Embodiment 1 of the present utility model Figure 10 Schematic diagram of cross-section along the BB direction.

[0029] Figure 12 This is a schematic diagram of the cooperation between the rear guide portion and the rear lifting wheel in Embodiment 1 of this utility model.

[0030] Figure 13 This is a schematic diagram of the structure of Embodiment 2 of this utility model, in which the fan component is in a descending state and the front pulley unit and the rear pulley unit are both in a rising state.

[0031] Figure 14 This is a schematic diagram of the structure of Embodiment 2 of this utility model, in which the fan component is in a raised state and the front pulley unit and the rear pulley unit are both in a lowered state.

[0032] Explanation of key figure labels: 10. Mounting structure; 101. First front mounting component; 111. Front guide section; 1111. First front curved section; 1112. Second front curved section; 1113. Third front curved section; 112. Front main body; 113. Front support section; 102. First rear mounting component; 121. Rear guide section; 1211. First rear curved section; 1212. Second rear curved section; 1213. Third rear curved section; 122. Rear main body; 123. Rear support section; 20. Corner component; 30. Push-pull component; 40. First connecting component; 50. Second front connecting component; 60. Front pulley unit; 601. Second front... Mounting component, 602, front pulley, 603, front lifting wheel, 70, corner pin, 80, push-pull pin, 90, first connecting pin, 100, second connecting pin, 110, first upper lifting pin, 120, first lower lifting pin, 130, rear pulley unit, 131, second rear mounting component, 132, rear pulley, 133, rear lifting wheel, 140, second rear connecting component, 150, second upper lifting pin, 160, second lower lifting pin, 170, front pivot pin, 180, front bearing, 190, rear pivot pin, 200, rear bearing, 210, third connecting component, 220, fan component, 230, track. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0035] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0036] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0037] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0038] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0039] Example 1 See Figure 1 as well as Figure 12This utility model discloses a pulley assembly, including: a mounting structure 10, which includes a first front mounting member 101; a corner member 20, the first end of which is rotatably connected to the first front mounting member 101, and the second end of which is rotatably connected to a push-pull member 30; a first connecting member 40, the first end of which is rotatably connected to the third end of the corner member 20; a second front connecting member 50; and a front pulley unit 60, which includes a second front mounting member 601, a front pulley 602, and a front lifting wheel 603. The second end is rotatably connected to the second front mounting member 601. The two ends of the second front connector 50 are rotatably connected to the first front mounting member 101 and the second front mounting member 601, respectively. That is, the first end of the second front connector 50 is rotatably connected to the first front mounting member 101, and the second end of the second front connector 50 is rotatably connected to the second front mounting member 601. A front lifting wheel 603 is rotatably connected to the rotational connection position of the second front mounting member 601 and the second front connector 50. A front guide portion 111 is provided on the first front mounting member 101, and the front lifting wheel 603 rolls along the front guide portion 111.

[0040] Corner piece 20 has a triangular structure.

[0041] The front pulley unit 60 of this utility model can be raised or lowered relative to the first front mounting member 101. During the movement of the front pulley unit 60 relative to the first front mounting member 101, the front lifting wheel 603 follows the second front connecting member 50 and swings around the rotational connection center between the first front mounting member 101 and the second front connecting member 50, thereby driving the front pulley unit 60 as a whole to rise and fall relative to the first front mounting member 101. The front lifting wheel 603 rotates around its own rotational center, so that during the swinging process of the front lifting wheel 603 following the second front connecting member 50 around the rotational connection center between the first front mounting member 101 and the second front connecting member 50, the front lifting wheel 603 can roll along the front guide portion 111 to reduce the sliding friction between the front lifting wheel 603 and the front guide portion 111, making the movement of the front pulley unit 60 smoother. Furthermore, the pushing force applied by the user to the push-pull member 30 can be reduced by increasing the diameter of the front lifting wheel 603.

[0042] It should be noted that the first end of the corner piece 20 is rotatably connected to the first front mounting piece 101 via a corner pin 70, and the second end of the corner piece 20 is rotatably connected to the push-pull piece 30 via a push-pull pin 80; the first end of the first connector 40 is rotatably connected to the third end of the corner piece 20 via a first connecting pin 90; the second end of the first connector 40 is rotatably connected to the second front mounting piece 601 via a second connecting pin 100; the first end of the second front connector 50 is rotatably connected to the first front mounting piece 101 via a first upper lifting pin 110; the second end of the second front connector 50 is rotatably connected to the second front mounting piece 601 via a first lower lifting pin 120; and the front lifting wheel 603 is sleeved outside the first lower lifting pin 120, and the front lifting wheel 603 is rotatably connected to the first lower lifting pin 120.

[0043] In other words, during the movement of the front pulley unit 60 relative to the first front mounting member 101, the front lifting wheel 603 follows the second front connecting member 50 and swings around the first upper lifting pin 110 (the rotational connection center between the first front mounting member 101 and the second front connecting member 50), thereby driving the front pulley unit 60 as a whole to rise and fall relative to the first front mounting member 101; the front lifting wheel 603 rotates around the first lower lifting pin 120, so that during the swinging of the front lifting wheel 603 following the second front connecting member 50 around the first upper lifting pin 110, the front lifting wheel 603 can roll along the front guide portion 111 to reduce the sliding friction between the front lifting wheel 603 and the front guide portion 111, making the movement of the front pulley unit 60 smoother, and the pushing force applied by the user to the push-pull member 30 can be reduced by increasing the diameter of the front lifting wheel 603.

[0044] See Figures 1 to 5 The downward movement of the push-pull component 30 causes the corner component 20 to rotate counterclockwise around the corner pin 70, thereby causing the second front connecting component 50 to rotate counterclockwise around the first upper lifting pin 110, and then causing the front pulley unit 60 to move upward to the lifting state.

[0045] See Figures 8 to 11 The upward movement of the push-pull component 30 causes the corner component 20 to rotate clockwise around the corner pin 70, thereby causing the second front connecting component 50 to rotate clockwise around the first upper lifting pin 110, and then causing the front pulley unit 60 to move downward to the lowering state.

[0046] In this embodiment of the utility model, the first front mounting member 101 includes a front body 112 and a front support portion 113. The front body 112 extends in a first direction, and the front support portion 113 extends in a second direction. The first direction and the second direction are perpendicular to each other, and a front guide portion 111 is provided at the angle between the front body 112 and the front support portion 113.

[0047] In this embodiment of the present invention, the front guide portion 111 includes a first front curved portion 1111, a second front curved portion 1112 and a third front curved portion 1113 connected in sequence, so that the front lifting wheel 603 always rolls in close contact with the front guide portion 111.

[0048] In this embodiment of the utility model, the push-pull member 30 extends along the second direction, and the second end of the corner member 20 is rotatably connected to the push-pull member 30.

[0049] In this embodiment of the utility model, the mounting structure 10 includes a first rear mounting member 102; the pulley assembly includes a rear pulley unit 130 and a second rear connecting member 140, with the front pulley unit 60 and the rear pulley unit 130 arranged along a first direction; the rear pulley unit 130 includes a second rear mounting member 131, a rear pulley 132, and a rear lifting wheel 133, with both ends of the second rear connecting member 140 rotatably connected to the first rear mounting member 102 and the second rear mounting member 131 respectively, that is, the first end of the second rear connecting member 140 is rotatably connected to the first rear mounting member 102, and the second end of the second rear connecting member 140 is rotatably connected to the second rear mounting member 131; the rear lifting wheel 133 is rotatably connected to the rotatable connection position of the second rear mounting member 131 and the second rear connecting member 140, and a rear guide portion 121 is provided on the first rear mounting member 102, with the rear lifting wheel 133 rolling along the rear guide portion 121.

[0050] The first end of the second rear connector 140 is rotatably connected to the first rear mounting member 102 via the second upper lifting pin 150, the second end of the second rear connector 140 is rotatably connected to the second rear mounting member 131 via the second lower lifting pin 160, and the rear lifting wheel 133 is sleeved on the second lower lifting pin 160 and is rotatably connected to the second lower lifting pin 160.

[0051] Similarly, during the movement of the rear pulley unit 130 relative to the first rear mounting member 102, the rear lifting wheel 133 follows the second rear connector 140 and swings around the second upper lifting pin 150, thereby driving the rear pulley unit 130 as a whole to rise and fall relative to the first rear mounting member 102; the rear lifting wheel 133 rotates around the second lower lifting pin 160, so that during the swinging of the rear lifting wheel 133 following the second rear connector 140 around the second upper lifting pin 150, the rear lifting wheel 133 can roll along the rear guide portion 121 to reduce the sliding friction between the rear lifting wheel 133 and the rear guide portion 121, making the movement of the rear pulley unit 130 smoother, and the pushing force applied by the user to the push-pull member 30 can be reduced by increasing the diameter of the rear lifting wheel 133.

[0052] In this embodiment of the utility model, the first rear mounting member 102 includes a rear body 122 and a rear support portion 123. The rear body 122 extends in a first direction, and the rear support portion 123 extends in a second direction. A rear guide portion 121 is provided at the angle between the rear body 122 and the rear support portion 123.

[0053] In this embodiment of the present invention, the rear guide portion 121 includes a first rear curved portion 1211, a second rear curved portion 1212 and a third rear curved portion 1213 connected in sequence, so that the rear lifting wheel 133 always rolls in close contact with the rear guide portion 121.

[0054] In this embodiment of the utility model, the front pulley 602 is rotatably connected to the second front mounting member 601, and the rear pulley 132 is rotatably connected to the second rear mounting member 131.

[0055] Specifically, the front pulley 602 is rotatably connected to the second front mounting member 601 via the front pivot pin 170 and the front bearing 180, and the rear pulley 132 is rotatably connected to the second rear mounting member 131 via the rear pivot pin 190 and the rear bearing 200.

[0056] In this embodiment of the utility model, the pulley assembly further includes a third connector 210, which connects the second front mounting member 601 and the second rear mounting member 131.

[0057] Thus, the rear pulley unit 130 moves with the front pulley unit 60 via the third connecting member 210. If the front pulley unit 60 moves upward, the rear pulley unit 130 also moves upward; if the front pulley unit 60 moves downward, the rear pulley unit 130 also moves downward.

[0058] Example 2 See Figure 1 as well as Figure 14 This utility model discloses a door and window system, including a sliding member 30, a sash member 220, and the aforementioned pulley assembly.

[0059] The door and window system of this utility model adopts the above-mentioned pulley assembly, which makes the lifting of the sash 220 smoother and less strenuous.

[0060] In use, the pulley assembly is fixed to the lower part of the fan 220 by the mounting structure 10 (first front mounting part 101, first rear mounting part 102). The front pulley unit 60 and the rear pulley unit both cooperate with the ground track 230. Specifically, the front pulley 602 and the rear pulley 132 both cooperate with the ground track 230.

[0061] When both the front pulley unit 60 and the rear pulley unit 130 move upward (closer to the fan 220), the fan 220 descends; when both the front pulley unit 60 and the rear pulley unit 130 move downward (away from the fan 220), the fan 220 is lifted up by the front pulley unit 60 and the rear pulley unit 130.

[0062] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A pulley assembly, characterized by, include: The mounting structure includes a first front mounting component; A corner component, wherein a first end of the corner component is rotatably connected to the first front mounting component, and a second end of the corner component is rotatably connected to a push-pull component; A first connector, wherein a first end of the first connector is rotatably connected to a third end of the corner piece; Second front connector; A front pulley unit, comprising a second front mounting member, a front pulley, and a front lifting wheel, wherein the second end of the first connecting member is rotatably connected to the second front mounting member, and the two ends of the second front connecting member are respectively rotatably connected to the first front mounting member and the second front mounting member; The second front mounting member and the second front connecting member are rotatably connected to the front lifting wheel at the rotatable connection position. The first front mounting member is provided with a front guide portion, and the front lifting wheel rolls along the front guide portion.

2. The pulley assembly of claim 1, wherein: The first front mounting component includes a front body and a front support portion, wherein the front body extends in a first direction and the front support portion extends in a second direction; The first direction is perpendicular to the second direction, and the front guide portion is provided at the angle between the front main body and the front support portion.

3. The pulley assembly of claim 2, wherein: The front guide portion includes a first front curve portion, a second front curve portion, and a third front curve portion connected in sequence.

4. The pulley assembly of claim 2, wherein: The push-pull member extends along the second direction.

5. The pulley assembly of claim 2, wherein: The mounting structure includes a first rear mounting component; The pulley assembly includes a rear pulley unit and a second rear connector, with the front pulley unit and the rear pulley unit arranged along the first direction; The rear pulley unit includes a second rear mounting member, a rear pulley, and a rear lifting wheel. The two ends of the second rear connecting member are respectively rotatably connected to the first rear mounting member and the second rear mounting member. The second rear mounting member and the second rear connecting member are rotatably connected to the rear lifting wheel at the rotatable connection position. The second rear mounting member is provided with a rear guide portion, and the rear lifting wheel rolls along the rear guide portion.

6. The pulley assembly of claim 5, wherein: The first rear mounting component includes a rear body and a rear support portion, wherein the rear body extends in the first direction and the rear support portion extends in the second direction; The rear guide portion is provided at the angle between the rear main body and the rear support portion.

7. The pulley assembly of claim 6, wherein: The rear guide portion includes a first rear curved portion, a second rear curved portion, and a third rear curved portion connected in sequence.

8. The pulley assembly of claim 5, wherein: The front pulley is rotatably connected to the second front mounting member, and the rear pulley is rotatably connected to the second rear mounting member.

9. The pulley assembly of claim 5, wherein: The pulley assembly further includes a third connector that connects the second front mounting member and the second rear mounting member.

10. A door and window system characterized by: It includes push-pull components, fan components, and pulley assemblies as described in any one of claims 1-9.

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