Buffer pulley assembly and pulley rail mechanism for sliding door

Abstract

The present invention discloses a buffer pulley assembly and a pulley rail mechanism of a sliding door, comprising: a pulley assembly and a buffer assembly, the pulley assembly comprising a connecting piece of an elongated structure, rollers corresponding to different guide rails on the slide rail are respectively arranged at both ends of the connecting piece, the pulley assembly can be rotated until the roller is misaligned with the guide rail on the slide rail and the pulley assembly can pass through the opening at the lower end of the slide rail, or the pulley assembly can be rotated until the roller cooperates with the corresponding guide rail on the slide rail; the buffer assembly is connected to the pulley assembly and can pass through the opening at the lower end of the slide rail, that is, the width of the buffer assembly is set to be smaller than the opening width at the lower end of the slide rail, when in use, the pulley assembly can be rotated to a certain angle and loaded into the slide rail from bottom to top, and then rotated to cooperate with the guide rail, during the loading process of the pulley assembly, the buffer assembly can also be loaded synchronously or sequentially, and the same is true when disassembling, which can facilitate the installation and disassembly of the buffer pulley assembly.

Description

Technical Field

[0001] The invention relates to the field of sliding door rails, and in particular to a buffer pulley assembly and a pulley rail mechanism of a sliding door. Background Art

[0002] The pulley rail mechanism is often used as a sliding hanging wheel. For example, when used in a sliding door, the lifting pulley generally adopts a four-wheel balanced support structure. When installed, it needs to be slid into the end opening of the door rail. The lower end of the door rail is an open structure to facilitate the lifting connection with the door body. However, when the pulley fails or needs maintenance, the door frame needs to be disassembled to remove the pulley or replace the hanging wheel, which is very inconvenient for maintenance. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a buffer pulley assembly for a sliding door, which can facilitate the installation and removal of the buffer pulley.

[0004] The present invention also provides a pulley and slide rail mechanism, which can facilitate the installation and removal of the buffer pulley on the slide rail.

[0005] According to the first aspect of the present invention, the buffer pulley assembly of the sliding door comprises: a pulley assembly and a buffer assembly, the pulley assembly comprises a connecting piece of an elongated structure, and rollers corresponding to different guide rails on the slide rail are respectively arranged at both ends of the connecting piece, the pulley assembly can be rotated until the roller is misaligned with the guide rail on the slide rail and the pulley assembly can pass through the opening at the lower end of the slide rail, or the pulley assembly can be rotated until the roller cooperates with the corresponding guide rail on the slide rail; the buffer assembly is connected to the pulley assembly and can pass through the opening at the lower end of the slide rail, that is, the width of the buffer assembly is set to be smaller than the opening width at the lower end of the slide rail.

[0006] The buffer pulley assembly of the sliding door according to the embodiment of the present invention has at least the following beneficial effects: when in use, the pulley assembly can be rotated to a certain angle and installed into the slide rail from bottom to top, and then rotated to cooperate with the guide rail. During the installation process of the pulley assembly, the buffer assembly can also be installed synchronously or sequentially, and the same is true when disassembling, which can facilitate the installation and disassembly of the buffer pulley assembly.

[0007] In the present invention, only pulleys that cooperate with the same guide rail are provided at the end of the connecting member, and the pulleys at both ends of the connecting member are arranged relatively to each other, corresponding to the two groups of guide rails of the slide rail respectively, so that the width of the connecting member can be reduced, and the width space occupied by the pulley will also be reduced after the pulley assembly rotates a certain angle. Therefore, the pulley assembly can be designed to be narrower as a whole. After the pulley assembly rotates a certain angle, its width can be set to be smaller than the opening width of the lower end of the slide rail, so that the pulley assembly passes through the opening from bottom to top or from top to bottom, which is convenient for installation and disassembly of the pulley assembly.

[0008] In some embodiments of the present invention, the buffer assembly is rotatably arranged on the pulley assembly, and the buffer assembly is provided with a positioning mechanism, which can locate the relative position of the buffer assembly and the slide rail and / or can locate the relative position of the buffer assembly and the pulley assembly. The buffer assembly and the pulley assembly can be relatively rotated, and the position of the buffer assembly and the pulley assembly can be flexibly adjusted to facilitate the installation of the buffer assembly and the pulley assembly into the slide rail. The position of the buffer assembly can be located by the positioning mechanism, so that it can accurately cooperate with the trigger mechanism after being installed in the slide rail to realize the buffer function.

[0009] In some embodiments of the present invention, the positioning mechanism includes a screw, a positioning hole for the screw to pass through is provided on the buffer assembly, and a threaded hole cooperating with the screw is provided on the connecting member. The relative positions of the buffer assembly and the pulley assembly can be positioned through the screw, the positioning hole and the threaded hole. When the pulley assembly is matched with the slide rail, the buffer assembly can be positioned so that it can be precisely positioned.

[0010] In some embodiments of the present invention, the positioning mechanism includes a guide pulley arranged on the buffer assembly and capable of cooperating with one of the guide rails on the slide rail. The buffer assembly can be positioned and supported through the cooperation between the guide pulley and the guide rail, so that the buffer assembly can accurately cooperate with the trigger mechanism, thereby making the reliability of the buffer assembly higher.

[0011] In some embodiments of the present invention, the guide pulley is rotatably arranged on one end of the buffer assembly away from the pulley assembly to support the far end of the buffer assembly, and when the buffer assembly rotates, the width space occupied is smaller and it is easier to pass through the opening at the lower end of the slide rail.

[0012] In some embodiments of the present invention, a connection structure connected to the door body and enabling the door body to be hoisted is provided on the connecting piece, and the door body can be supported by configuring a plurality of groups of pulley assemblies.

[0013] In some embodiments of the present invention, the connection structure between the connecting member and the door body is a screw connection mechanism, that is, the door body is hoisted on the pulley assembly by a screw.

[0014] In some embodiments of the present invention, an extension piece is fixedly provided at one end of the buffer assembly, and the end of the extension piece is rotatably connected to the middle part of the connecting piece. The extension piece is provided with an escape space for the connecting piece to rotate, so that the buffer assembly can rotatably cooperate with the lifting mechanism in the middle part of the connecting piece, such as a screw or a hanger, to simplify the structure.

[0015] In some embodiments of the present invention, the buffer assembly includes a shell and a slider slidably disposed on the shell. The slider is connected to the shell through a buffer structure. The slider is provided with a locking position, which can cooperate with a trigger mechanism on the slide rail to achieve a buffer function.

[0016] In some embodiments of the present invention, the buffer structure is a combination of a spring and a gas spring to achieve door body buffering.

[0017] In some embodiments of the present invention, the projection of the connecting member along the length direction can cover the roller, or overlap with the edge of the roller, so that the installation width of the entire pulley assembly is only the width dimension of the connecting member, or the occupied width when the pulley is tilted, and the required installation width is smaller.

[0018] In some embodiments of the present invention, a recessed position into which the roller can be partially or completely installed is provided on the connecting member, so as to reduce the space occupied by the installation of the roller.

[0019] The pulley and slide rail mechanism according to the second aspect of the present invention includes: a buffer pulley assembly and a slide rail according to any one of the first aspect of the present invention, the slide rail is downwardly provided with an open groove extending along its length direction, guide rails corresponding to the rollers are respectively arranged on both sides of the open groove, and a trigger mechanism corresponding to the buffer assembly is arranged on the inner wall of the open groove.

[0020] The pulley and slide rail mechanism according to the embodiment of the present invention has at least the following beneficial effects: the pulley assembly can be rotated until the roller is misaligned with the guide rail on the slide rail and the pulley assembly can pass through the opening at the lower end of the slide rail, or the pulley assembly can be rotated until the roller cooperates with the corresponding guide rail on the slide rail; the buffer assembly is connected to the pulley assembly and can pass through the opening at the lower end of the slide rail, that is, the width of the buffer assembly is set to be smaller than the opening width at the lower end of the slide rail, so that the pulley assembly can be rotated to a certain angle and loaded into the slide rail from bottom to top, and then rotated to cooperate with the guide rail. During the installation process of the pulley assembly, the buffer assembly can also be installed synchronously or sequentially, and the same is true during disassembly, which can facilitate the installation and disassembly of the buffer pulley assembly.

[0021] The trigger mechanism corresponds to the buffer component and is generally a raised structure that cooperates with the latching position on the buffer component. When the buffer component slides to the position corresponding to the trigger mechanism, the trigger mechanism can be latched into the latching position, causing the buffer component to operate and produce a buffering effect on the door body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 It is a structural schematic diagram of a buffer pulley assembly according to an embodiment of the present invention;

[0024] Figure 2 It is an exploded schematic diagram of a buffer pulley assembly according to an embodiment of the present invention;

[0025] Figure 3 It is one of the bottom views of the buffer pulley assembly according to the embodiment of the present invention;

[0026] Figure 4 The second bottom view of the buffer pulley assembly according to the embodiment of the present invention;

[0027] Figure 5 It is a side view schematic diagram of the pulley and slide rail mechanism of an embodiment of the present invention;

[0028] Figure 6 It is one of the bottom views of the pulley and slide rail mechanism according to the embodiment of the present invention;

[0029] Figure 7 The second bottom view of the pulley and slide rail mechanism according to the embodiment of the present invention;

[0030] Figure 8 It is a schematic diagram of an exploded view of a pulley and slide rail mechanism according to an embodiment of the present invention.

[0031] Reference numerals:

[0032] The pulley assembly 100 , the connecting member 130 , the roller 120 , the threaded hole 131 , and the screw rod 132 .

[0033] The buffer assembly 200 , the screw 211 , the positioning hole 212 , the guide pulley 213 , the housing 220 , the slider 230 , the locking position 231 , and the extension member 240 .

[0034] Trigger mechanism 300.

[0035] Slide rail 900 , opening slot 901 , guide rail 902 . DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0037] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations 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 orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In the description of the present invention, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0039] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0040] like Figure 1 As shown, the buffer pulley assembly of the sliding door according to an embodiment of the present invention is used for sliding cooperation with the slide rail 900, including: a pulley assembly 100 and a buffer assembly 200, the pulley assembly 100 includes a long structural connecting member 130, and rollers 120 corresponding to different guide rails on the slide rail 900 are respectively arranged at both ends of the connecting member 130, the pulley assembly 100 can be rotated until the roller 120 is misaligned with the guide rail on the slide rail 900 and the pulley assembly 100 can pass through the opening at the lower end of the slide rail 900, or the pulley assembly 100 can be rotated until the roller 120 cooperates with the corresponding guide rail on the slide rail 900; the buffer assembly 200 is connected to the pulley assembly 100 and can pass through the opening at the lower end of the slide rail 900, that is, the width of the buffer assembly 200 is set to be smaller than the opening width at the lower end of the slide rail 900.

[0041] When in use, the pulley assembly 100 can be rotated to a certain angle and installed into the slide rail 900 from bottom to top, and then rotated to cooperate with the guide rail. During the installation process of the pulley assembly 100, the buffer assembly 200 can also be installed synchronously or sequentially. The same is true when disassembling, which can facilitate the installation and disassembly of the buffer pulley assembly.

[0042] In the present invention, only pulleys cooperating with the same guide rail are provided at the end of the connecting member 130, and the pulleys at both ends of the connecting member 130 are arranged relatively to each other, corresponding to the two sets of guide rails of the slide rail respectively, so that the width of the connecting member 130 can be reduced, and the width space occupied by the pulley will also be reduced after the pulley assembly 100 rotates a certain angle, so that the pulley assembly 100 can be designed to be narrower as a whole. After the pulley assembly 100 rotates a certain angle, its width can be set to be smaller than the opening width of the lower end of the slide rail 900, so that the pulley assembly 100 passes through the opening from bottom to top or from top to bottom, which is convenient for the installation and disassembly of the pulley assembly 100.

[0043] The buffer assembly 200 is a commonly used component in sliding doors, and plays a buffering role when the door body moves to the edge position. It can be a spring, a gas spring or a combination of the above two structures. A corresponding trigger mechanism is set on the slide rail 900. Since the buffer assembly 200 does not need to be used as a supporting structure for lifting, it can be set as a narrow and long structure according to the structure of the spring and gas spring. Therefore, its width can be set to be smaller and can be installed with the pulley assembly 100.

[0044] like Figure 2As shown, in some embodiments of the present invention, the buffer assembly 200 is rotatably disposed on the pulley assembly 100, and the buffer assembly 200 is provided with a positioning mechanism, which can position the relative position of the buffer assembly 200 and the slide rail 900 and / or can position the relative position of the buffer assembly 200 and the pulley assembly 100, so that the buffer assembly 200 and the pulley assembly 100 can be relatively rotated, and the position of the buffer assembly 200 and the pulley assembly 100 can be flexibly adjusted, so that the buffer assembly 200 and the pulley assembly 100 are convenient to be installed into the slide rail 900, and the position of the buffer assembly 200 can be positioned by the positioning mechanism, so that after being installed in the slide rail, it can accurately cooperate with the trigger mechanism to realize the buffer function.

[0045] Of course, in a specific implementation, when the width of the buffer assembly 200 is small enough, or the pulley assembly 100 is long enough, the buffer assembly 200 can be fixedly connected to the pulley assembly 100 or directly disposed on the pulley assembly 100, which will not be described in detail herein.

[0046] like Figure 2 As shown, in some embodiments of the present invention, the positioning mechanism includes a screw 211, and the buffer assembly 200 is provided with a positioning hole 212 through which the screw 211 can pass, and the connecting member 130 is provided with a threaded hole 131 that cooperates with the screw 211. The relative positions of the buffer assembly 200 and the pulley assembly 100 can be positioned through the screw 211, the positioning hole 212, and the threaded hole 131. When the pulley assembly 100 is matched with the slide rail 900, the buffer assembly 200 can be positioned so that it can be precisely positioned.

[0047] It is conceivable that, in some embodiments of the present invention, the buffer assembly 200 and the pulley assembly 100 may be positioned by means of a latch or a buckle, which will not be described in detail herein.

[0048] like Figure 3 As shown, in some embodiments of the present invention, the positioning mechanism includes a guide pulley 213 arranged on the buffer assembly 200 and capable of cooperating with one of the guide rails on the slide rail 900. The buffer assembly 200 can be positioned and supported through the cooperation between the guide pulley 213 and the guide rail, so that the buffer assembly 200 can accurately cooperate with the trigger mechanism, thereby making the reliability of the buffer assembly 200 higher.

[0049] like Figure 3 As shown, in some embodiments of the present invention, the guide pulley 213 is rotatably arranged on one end of the buffer assembly 200 away from the pulley assembly 100 to support the far end of the buffer assembly 200, and when the buffer assembly 200 rotates, the width space occupied is smaller and it is easier to pass through the opening at the lower end of the slide rail 900.

[0050] In some embodiments of the present invention, a connection structure connected to the door body and enabling the door body to be hoisted is provided on the connecting member 130, and the door body can be supported by configuring a plurality of groups of pulley assemblies 100.

[0051] In some embodiments of the present invention, the connection structure between the connecting member 130 and the door body is a screw connection mechanism, that is, the door body is hoisted on the pulley assembly 100 through the screw 132.

[0052] Of course, in the specific implementation process, the connecting member 130 and the door body can also be connected by a hanging device such as a hook, which will not be described in detail here.

[0053] like Figure 2 As shown, in some embodiments of the present invention, an extension piece 240 is fixedly provided at one end of the buffer component 200, and the end of the extension piece 240 is rotatably connected to the middle part of the connecting member 130. The extension piece 240 is provided with an escape space for the connecting member 130 to rotate, so that the buffer component 200 can rotate with the lifting mechanism in the middle part of the connecting member 130, such as a screw 132 or a lifting device, to simplify the structure.

[0054] It is conceivable that, in some embodiments of the present invention, the buffer assembly 200 may also be rotatably connected to the end of the connecting member 130, which will not be described in detail herein.

[0055] like Figure 2 As shown, in some embodiments of the present invention, the buffer assembly 200 includes a shell 220 and a slider 230 slidably disposed on the shell 220. The slider 230 is connected to the shell 220 through a buffer structure. A latching position 231 is provided on the slider 230, which can cooperate with a trigger mechanism on the slide rail to achieve a buffering function.

[0056] In some embodiments of the present invention, the buffer structure is a combination of a spring and a gas spring (not shown in the figure) to achieve door body buffering.

[0057] Of course, in the specific implementation process, the buffer structure can also be a spring or a gas spring alone, which can also achieve the buffer function, which will not be described in detail here.

[0058] like Figure 4 As shown, in some embodiments of the present invention, the projection of the connecting member 130 along the length direction can cover the roller 120, or overlap with the edge of the roller 120, so that the installation width of the entire pulley assembly 100 is only the width dimension of the connecting member 130, or the occupied width when the pulley is tilted, and the required installation width is smaller.

[0059] like Figure 3 As shown, in some embodiments of the present invention, the connecting member 130 is provided with a recessed position into which the roller 120 can be partially or completely installed, so as to reduce the space occupied by the installation of the roller 120.

[0060] Reference Figure 8 According to the second aspect of the present invention, the pulley rail mechanism comprises a buffer pulley assembly and a slide rail 900 according to any one of the first aspect of the present invention. The slide rail 900 is downwardly provided with an open groove 901 extending along its length direction. Both sides of the open groove 901 are provided with guide rails 902 corresponding to the roller 120. A trigger mechanism 300 corresponding to the buffer assembly 200 is provided on the inner wall of the open groove 901. The pulley assembly 100 can rotate until the roller 120 is misaligned with the guide rail 902 on the slide rail 900 so that the pulley assembly 100 can pass through the opening at the lower end of the slide rail 900, or slide The wheel assembly 100 can be rotated until the roller 120 cooperates with the corresponding guide rail 902 on the slide rail 900; the buffer assembly 200 is connected to the pulley assembly 100 and can pass through the opening at the lower end of the slide rail 900, that is, the width of the buffer assembly 200 is set to be smaller than the opening width at the lower end of the slide rail 900, so that the pulley assembly 100 can be rotated to a certain angle and installed into the slide rail 900 from bottom to top, and then rotated to cooperate with the guide rail. During the installation process of the pulley assembly 100, the buffer assembly 200 can also be installed synchronously or sequentially, and the same is true during disassembly, which can facilitate the installation and disassembly of the buffer pulley assembly.

[0061] The trigger mechanism 300 corresponds to the buffer component 200 and is generally a raised structure that cooperates with the latching position on the buffer component 200. When the buffer component 200 slides to the position corresponding to the trigger mechanism 300, the trigger mechanism 300 can be latched into the latching position, causing the buffer component 200 to move and produce a buffering effect on the door body.

[0062] Of course, the invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A buffer pulley assembly for a sliding door, used for sliding cooperation with a slide rail (900), characterized in that: include: A pulley assembly (100), the pulley assembly (100) comprising a connecting member (130) of an elongated structure, rollers (120) corresponding to different guide rails on the slide rail (900) being respectively arranged at both ends of the connecting member (130), the pulley assembly (100) being able to rotate until the rollers (120) are misaligned with the guide rails on the slide rail (900) and the pulley assembly (100) is able to pass through an opening at the lower end of the slide rail (900), or the pulley assembly (100) is able to rotate until the rollers (120) are matched with the corresponding guide rails on the slide rail (900); a buffer assembly (200), the buffer assembly (200) being connected to the pulley assembly (100) and being capable of passing through an opening at a lower end of the slide rail (900); The buffer assembly (200) is rotatably arranged on the pulley assembly (100), and the buffer assembly (200) is provided with a positioning mechanism, and the positioning mechanism can locate the relative position of the buffer assembly (200) and the slide rail (900) and / or can locate the relative position of the buffer assembly (200) and the pulley assembly (100); The positioning mechanism comprises a guide pulley (213) arranged on the buffer assembly (200) and capable of cooperating with one of the guide rails on the slide rail (900); The guide pulley (213) is rotatably arranged on an end of the buffer assembly (200) away from the pulley assembly (100); The connecting piece (130) is provided with a connecting structure connected to the door body and enabling the door body to be hoisted.

2. The buffer pulley assembly for a sliding door according to claim 1, characterized in that: The positioning mechanism comprises a screw (211), the buffer assembly (200) is provided with a positioning hole (212) capable of allowing the screw (211) to pass through, and the connecting member (130) is provided with a threaded hole (131) matching with the screw (211).

3. The buffer pulley assembly for a sliding door according to claim 1, characterized in that: An extension piece (240) is fixedly provided at one end of the buffer assembly (200), an end of the extension piece (240) is rotatably connected to the middle part of the connecting piece (130), and the extension piece (240) is provided with an escape space capable of allowing the connecting piece (130) to rotate.

4. The buffer pulley assembly for a sliding door according to claim 1, characterized in that: The buffer assembly (200) comprises a shell (220) and a slider (230) slidably arranged on the shell (220); the slider (230) is connected to the shell (220) via a buffer structure; and a locking position (231) is arranged on the slider (230).

5. The buffer pulley assembly for a sliding door according to claim 4, characterized in that: The buffer structure is a spring and / or a gas spring.

6. The buffer pulley assembly for a sliding door according to claim 1, characterized in that: The projection of the connecting member (130) along the length direction can cover the roller (120) or overlap with the edge of the roller (120).

7. The buffer pulley assembly for a sliding door according to claim 1, characterized in that: The connecting member (130) is provided with a recessed position into which the roller (120) can be partially or completely installed.

8. The pulley and slide rail mechanism is characterized in that: include: A slide rail (900) and a buffer pulley assembly as described in any one of claims 1 to 7, wherein the slide rail (900) is downwardly provided with an open groove (901) extending along its length direction, and guide rails (902) corresponding to the roller (120) are respectively arranged on both sides of the open groove (901), and a trigger mechanism (300) corresponding to the buffer assembly (200) is arranged on the inner wall of the open groove (901).

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