Pulley hinge structure and folding door thereof

Abstract

The utility model relates to the technical field of folding doors, in particular to a pulley hinge structure and a folding door thereof, the pulley hinge structure comprises a pulley seat, a guide wheel and a pulley, the front end face of the pulley seat is provided with at least one guide wheel plate used for installing the guide wheel, and the guide wheel plate is provided with a hinge. The front end face of the pulley seat is provided with a connecting plate used for installing the pulley, the horizontal height of the connecting plate is not larger than that of the guide wheel plate, the guide wheel is rotatably installed on the guide wheel plate, the upper end and the lower end of the guide wheel are respectively provided with a clamping block, and the pulley is rotatably installed on the connecting plate. The width of the left side and the right side of the guide wheel is equal to the diameter of the pulley, the pulley hinge structure is arranged, the guide wheel is rotatable, the clamping block at the guide wheel is clamped on the sliding rail so that the pulley can slide on the sliding rail, the structural design is simple, installation is easy, an operator only needs to rotate the guide wheel in the installation process, and installation is convenient. And the installation efficiency of installation personnel can be improved.

Description

Technical Field

[0001] This utility model relates to the field of folding door technology, and in particular to a pulley hinge structure and its folding door. Background Technology

[0002] Folding doors are a convenient and space-saving door product. By setting hinges to connect the various door sections, the folding of each door section can maximize space utilization and save the space occupied by the door. The use of rollers and tracks makes the movement of each door section smoother and more convenient.

[0003] Chinese utility model patent (authorization announcement number: CN208137762U) discloses a folding door with a sliding function, including sliding door A, sliding door B, and sliding door C. Hinges are provided between sliding door A and sliding door B, and between sliding door B and sliding door C. Bottom wheels are provided at the bottom of sliding door A, sliding door B, and sliding door C. Bottom wheels include metal pulleys, metal brackets, a first bearing, and a first connecting rod. The metal pulleys and the metal brackets are connected by pins. The first bearing is sleeved on the upper end of the metal bracket, and the first connecting rod is sleeved on the outer wall of the first bearing. A lower slide rail is installed at the bottom of the bottom wheels. Hanging wheels are provided at the top of sliding door A, sliding door B, and sliding door C. An upper hanging rail is installed at the upper end of the hanging wheels.

[0004] However, in actual installation of the hanging wheel assembly, the operator needs to align the hanging wheel with the hanging rail before inserting it so that the hanging wheel assembly can slide on the guide rail. Since the hanging wheel assembly is located above the door, people often need to make their viewing angle level with the hanging rail to align the hanging wheel with the guide rail before they can install it, which makes the installation process somewhat inconvenient. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a pulley hinge structure and its folding door, which can solve the above problems.

[0006] A pulley hinge structure includes a pulley seat, a guide wheel, and a pulley. The front end face of the pulley seat has at least one guide wheel plate for mounting the guide wheel, and the front end face of the pulley seat also has at least one connecting plate for mounting the pulley. The horizontal height of the connecting plate is not higher than that of the guide wheel plate. The guide wheel is rotatably mounted on the guide wheel plate. The upper and lower ends of the guide wheel are respectively provided with locking blocks. The pulley is rotatably mounted on the connecting plate. The width of the left and right sides of the guide wheel is equal to the diameter of the pulley.

[0007] As a further embodiment of this utility model: the pulley hinge structure further includes a slide rail, the slide rail having a hollow inner hole inside, and a through groove on the lower end face of the slide rail connecting the hollow inner hole, the width of the through groove being equal to the diameter of the pulley.

[0008] As a further embodiment of this utility model: the upper end of the pulley seat is provided with the through groove so that the guide wheel is located in the hollow inner hole, and the wheel surface of the pulley abuts against the two sides of the through groove.

[0009] As a further embodiment of this utility model, the guide wheel plate and the connecting plate are integrally formed.

[0010] As a further embodiment of this utility model: the pulley seat includes a mounting base, and the right end face of the mounting base is hinged to the left end face of the pulley seat.

[0011] As a further embodiment of this utility model: the mounting base includes a hinge joint and an ear plate, the right end face of the hinge joint is hinged to the left end face of the pulley seat, and the ear plate is installed on the right end face of the hinge joint.

[0012] As a further embodiment of this utility model: a folding door, including the above-mentioned pulley hinge structure, wherein the slide rail is arranged laterally above the folding door, the folding door includes a first door panel and a second door panel, the first door panel is hinged to the second door panel, and the ear plate is detachably installed on the rear end face of the first door panel.

[0013] As a further embodiment of this utility model: a hidden hole is provided on the rear end face of the first door panel near the hinge joint, and the hinge joint is fitted into the hidden hole so that the left end face of the ear plate abuts against the rear end face of the first door panel.

[0014] As a further embodiment of this utility model: the second door panel is provided with a handrail, which is detachably installed on the front end face of the second door panel.

[0015] As a further embodiment of this utility model: the folding door is provided with at least one set of spring hinges, which are detachably connected to the hinge of the folding door.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. By setting a pulley hinge structure, the guide wheel is rotatable. The locking block at the guide wheel is locked onto the slide rail, allowing the pulley to slide on the slide rail. This structure is simple in design and easy to install. During installation, the operator only needs to rotate the guide wheel to complete the installation, which can improve the installation efficiency of the installer.

[0018] 2. By installing a pulley hinge structure at the folding door, the first and second door panels can be slid and folded to one side simultaneously during folding. At the same time, when installing the folding door, the operator only needs to install the ear plate of the pulley hinge structure at the first door panel to achieve the folding and sliding effect, making the folding door easy to install.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0021] Figure 1 This is a schematic diagram of the pulley seat structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the guide wheel structure of this utility model.

[0023] Figure 3 This is a schematic diagram of the hinge joint structure of this utility model.

[0024] Figure 4 This is a schematic diagram of the folding door structure of this utility model.

[0025] Figure 5 yes Figure 4 A magnified view of a portion of point A in the middle.

[0026] Figure 6 This is a schematic diagram of the first door panel structure of this utility model.

[0027] Figure 7 yes Figure 6 A magnified view of a section at point B.

[0028] Figure 8 This is a schematic diagram of the hidden hole structure of this utility model.

[0029] Figure 9 This is a schematic diagram of the second door panel structure of this utility model.

[0030] In the diagram: 1-Pulley seat, 2-Guide wheel, 3-Pulley, 11-Guide wheel plate, 12-Connecting plate, 21-Snap-fit ​​block, 4-Slide rail, 41-Hollow inner hole, 42-Through groove, 5-Mounting base, 51-Hinge joint, 52-Ear plate, 6-First door panel, 7-Second door panel, 61-Hidden hole, 71-Handrail, 72-Spring hinge.

[0031] Detailed implementation method.

[0032] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0036] Please see Figures 1-7In this embodiment of the utility model, a pulley hinge structure is provided, comprising a pulley seat 1, a guide wheel, and a pulley 3. The front end face of the pulley seat 1 is provided with at least one guide wheel plate 11 for mounting the guide wheel, and the front end face of the pulley seat 1 is provided with at least one connecting plate 12 for mounting the pulley 3. The horizontal height of the connecting plate 12 is not higher than that of the guide wheel plate 11. The guide wheel is rotatably mounted on the guide wheel plate 11. The upper and lower ends of the guide wheel are respectively provided with locking blocks 21 for locking the guide rail. The pulley 3 is rotatably mounted on the connecting plate 12. The width of the left and right sides of the guide wheel is equal to the diameter of the pulley 3. The pulley hinge structure also includes a slide rail 4, which has a hollow inner hole 41. A through groove 42 is opened on the lower end face of the slide rail 4 to connect the hollow inner hole 41 for slidingly mounting the pulley seat 1. The width of the through groove 42 is equal to the diameter of the pulley 3. Figure 5-7 As shown, the front end face of the pulley seat 1 is provided with two connecting plates for mounting pulleys 3, and two sets of pulleys 3 are mounted on them respectively, so that the pulley hinge structure can be more stable when sliding at the slide rail 4.

[0037] Among them, such as Figure 6-7 As shown, there is a height difference between the connecting plate and the guide wheel plate, and the horizontal height of the connecting plate is not higher than the horizontal height of the guide wheel plate.

[0038] like Figure 2 As shown, the guide wheel has locking blocks at both its upper and lower ends for rotating during installation, allowing the locking blocks to engage with the guide rail. The locking blocks at the guide wheel can be formed by machining or casting.

[0039] The working principle of this embodiment is as follows: Figure 3 The end face height of the connecting plate 12 shown is not higher than that of the guide wheel plate 11. The guide wheel 2 is a rotatable structure. When installing the pulley hinge structure, the installer first rotates the guide wheel 2 so that the left and right sides of the guide wheel 2 are engaged in the through groove 42. Then, the installer continues to move the guide wheel 2 so that it moves to the hollow inner hole 41. The installer rotates the guide wheel 2 so that the locking blocks 21 at both ends of the guide wheel 2 are engaged in the hollow inner hole 41. The wheel surface of the pulley 3 is just in contact with the left and right sides of the through groove 42, so that the pulley 3 can slide in the through groove 42.

[0040] Please see Figures 1-5 In this embodiment of the utility model, a through groove 42 is inserted into the upper end of the pulley seat 1 so that the guide wheel 2 is located in the hollow inner hole 41. The wheel surface of the pulley 3 abuts against the two sides of the groove surface of the through groove 42 so that the pulley seat 1 slides in the through groove 42. Thus, the pulley hinge structure can slide in the slide rail 4.

[0041] like Figures 1-3 and Figures 6-7As shown, there is a height difference between the guide wheel plate 11 and the connecting plate 12. Its function is to allow the guide wheel 2 at the guide wheel plate 11 to be installed at the hollow inner hole 41, so that the locking block 21 of the guide wheel 2 can be locked into the inner wall of the hollow inner hole 41. At this time, the pulley 3 installed on the connecting plate 12 is located at the through groove 42, and the pulley can slide in the through groove 42. This structure is simple. When installing, the operator only needs to rotate the guide wheel 2 to install the hinge structure of the pulley 3 on the slide rail 4.

[0042] Please see Figure 1 In this embodiment of the invention, the guide wheel plate 11 and the connecting plate 12 are integrally formed. The connection method between the guide wheel plate 11 and the connecting plate 12 includes, but is not limited to, machining, die casting, and casting.

[0043] Please see Figures 1-7 In this embodiment of the utility model, the pulley seat 1 includes a mounting base 5, the right end face of which is hinged to the left end face of the pulley seat 1, allowing the mounting base 5 to rotate. Specifically, as shown... Figure 1 As shown, the mounting base 5 rotates around the axis in the front-back direction.

[0044] Please see Figures 1-7 In this embodiment of the invention, the mounting base 5 includes a hinge joint 51 and an ear plate 52. The right end face of the hinge joint 51 is hinged to the left end face of the pulley seat 1, and the ear plate 52 is mounted on the right end face of the hinge joint 51. The connection method between the hinge joint 51 and the ear plate 52 includes, but is not limited to, integral molding and machining. Specifically, mounting holes are provided on both sides of the ear plate 52, and the installation methods between the ear plate 52 and the folding door include, but are not limited to, threaded connection, adhesive bonding, and insertion connection.

[0045] Please see Figures 1-9 In this embodiment of the invention, a folding door includes the aforementioned pulley hinge structure. A slide rail 4 is horizontally positioned above the folding door. The folding door includes a first door panel 6 and a second door panel 7. The first door panel 6 is hinged to the second door panel 7, allowing the first door panel 6 and the second door panel 7 to fold together. An ear plate 52 is detachably mounted on the rear end face of the first door panel 6. Specifically, the mounting methods between the ear plate 52 and the first door panel 6 include, but are not limited to, threaded connections, adhesive bonding, and insertion connections. The folding direction is consistent with the sliding direction of the pulley 3.

[0046] Working principle: The connection between the first door panel 6 and the ear panel 52 allows one end of the folding door to move synchronously with the pulley 3 at the pulley hinge structure. When the operator drags one side of the second door panel 7 to the left, the first door panel 6 and the second door panel 7 can be fully unfolded. When the operator drags the second door panel 7 to the right, the first door panel 6 and the second door panel 7 fold together. When the operator continues to drag the second door panel 7, the second door panel 7 drives the first door panel 6 to move to the right. At this time, the overall area occupied by the folding door becomes smaller, which is the optimal folded state.

[0047] Please see Figure 8 In this embodiment of the utility model, a hidden hole 61 is provided on the rear end face of the first door panel 6 near the hinge joint 51. The hinge joint 51 is fitted into the hidden hole 61 so that the left end face of the ear plate 52 abuts against the rear end face of the first door panel 6.

[0048] Specifically, the size of the concealed hole 61 is not smaller than the size of the hinge joint 51. When installing the hinge joint 51 to the first door panel 6, the operator inserts the hinge joint 51 into the concealed hole 61 so that the ear plate 52 abuts against the end face of the first door panel 6. The ear plate 52 can be installed onto the first door panel 6 by using screws. By setting the concealed hole 61, the first door panel 6 can fit more snugly against the slide rail 4, and on the other hand, it can make the overall folding door more beautiful and concise.

[0049] Please see Figures 3-9 In this embodiment of the present invention, the second door panel 7 is provided with a handrail 71, which is detachably installed on the front end face of the second door panel 7. The handrail 71 makes it easier for people to grip, thereby improving the ease of use of the folding door.

[0050] Please see Figures 4-6 In this embodiment of the present invention, the folding door is provided with at least one set of spring hinges 72, which are detachably installed at the hinge joint of the folding door. These hinges enable the first door panel 6 and the second door panel 7 to be hinged together to achieve folding. The working principle of the spring hinges 72 can be found in the description of patent number CN221682741U, and will not be repeated here.

[0051] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A pulley hinge structure, characterized in that, The hinge structure of the pulley (3) includes a pulley seat (1), a guide wheel (2) and a pulley (3). The front end face of the pulley seat (1) is provided with at least one guide wheel plate (11) for mounting the guide wheel (2). The front end face of the pulley seat (1) is provided with at least one connecting plate (12) for mounting the pulley (3). The horizontal height of the connecting plate (12) is not higher than that of the guide wheel plate (11). The guide wheel (2) is rotatably mounted on the guide wheel plate (11). The upper and lower ends of the guide wheel (2) are respectively provided with snap-fit ​​blocks (21). The pulley (3) is rotatably mounted on the connecting plate (12). The width of the left and right sides of the guide wheel (2) is equal to the diameter of the pulley (3).

2. The pulley hinge structure according to claim 1, characterized in that, The pulley hinge structure also includes a slide rail (4), which has a hollow inner hole (41) inside. A through groove (42) is opened on the lower end face of the slide rail (4) to connect the hollow inner hole (41). The width of the through groove (42) is equal to the diameter of the pulley (3).

3. The pulley hinge structure according to claim 2, characterized in that, The upper end of the pulley seat (1) is inserted into the through groove (42) so that the guide wheel (2) is located in the hollow inner hole (41) and the wheel surface of the pulley (3) abuts against the two sides of the through groove (42).

4. The pulley hinge structure according to claim 1, characterized in that, The guide wheel plate (11) and the connecting plate (12) are integrally formed.

5. The pulley hinge structure according to claim 3, characterized in that, The pulley seat (1) includes a mounting base (5), the right end face of which is hinged to the left end face of the pulley seat (1).

6. The pulley hinge structure according to claim 5, characterized in that, The mounting base (5) includes a hinge joint (51) and an ear plate (52). The right end face of the hinge joint (51) is hinged to the left end face of the pulley seat (1), and the ear plate (52) is mounted on the right end face of the hinge joint (51).

7. A folding door comprising the pulley hinge structure of claim 6, characterized in that, The slide rail (4) is arranged horizontally above the folding door. The folding door includes a first door panel (6) and a second door panel (7). The first door panel (6) is hinged to the second door panel (7). The ear plate (52) is detachably installed on the rear end face of the first door panel (6).

8. The folding door according to claim 7, characterized in that, The first door panel (6) has a hidden hole (61) on the rear end face near the hinge joint (51). The hidden hole (61) is fitted with the hinge joint (51) so that the left end face of the ear plate (52) abuts against the rear end face of the first door panel (6).

9. The folding door according to claim 7, characterized in that, The second door panel (7) is provided with a handrail (71), which is detachably installed on the front end face of the second door panel (7).

10. The folding door according to claim 7, characterized in that, The folding door is provided with at least one set of spring hinges (72), which are detachably connected to the hinge of the folding door.

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