Quick-mounting buffer pulley

The articulated slider structure of the quick-installation buffer roller solves the problem of existing roller devices being difficult to disassemble from the bottom of the track, enabling convenient installation and maintenance.

CN116498172BActive Publication Date: 2026-05-01ZHONGSHAN QIANGHUI METAL PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHONGSHAN QIANGHUI METAL PROD CO LTD
Filing Date
2023-06-13
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The existing roller device is difficult to disassemble from the bottom of the track profile during installation and maintenance, which makes maintenance difficult and may require damage to the wall.

Method used

The system adopts a quick-installation buffer wheel structure, which includes a housing, a buffer rod, and a slider. The slider is connected to the housing via a hinged slider, which can rotate relative to the housing. The wheel support can be rotated to extend or retract into a movable position, enabling the buffer wheel to slide and be disassembled within the track.

Benefits of technology

It simplifies the installation and disassembly process of the lifting wheels, avoids restrictions on operating space, facilitates maintenance, and reduces maintenance difficulty.

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Abstract

The invention discloses a quick-mounting buffer hanging wheel, which comprises a shell, a buffer rod and a sliding block. The shell is connected with the sliding block to make the shell slide with the aid of the sliding block. The shell is provided with a cavity, and the buffer rod is installed in the cavity. The end of the buffer rod is connected with a fastener. The buffer rod makes telescopic action in the cavity by the fastener. The sliding block comprises a pulley seat, a wheel body support and a wheel body. The pulley seat is provided with a plurality of movable positions. A rotating support is arranged in the movable position to connect the wheel body support, so that the wheel body support rotates around the rotating support. The wheel body support extends an axis core, and the wheel body is connected with the axis core. The wheel body rotates to move out of or into the movable position. The shell is provided with an access position. The end of the pulley seat extends a butt joint. The butt joint extends into and is hinged to the access position, so that the sliding block rotates relative to the shell. The quick-mounting buffer hanging wheel has the advantages of simple structure and reasonable design. Therefore, the quick-mounting buffer hanging wheel is a product with superior technical and economic performance.
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Description

Quick-release buffer roller Technical Field

[0001] [Technical Field]

[0002] This invention mainly relates to a quick-installation buffer wheel. Background Technology

[0003] [Background Technology]

[0004] A sliding door is a modern type of door that can be used in homes, offices, and other spaces. Sliding doors are typically equipped with a roller system for easy movement. The roller system includes rollers, door hangers, and bolts. First, a track is fixed above the desired installation location. When installing the track, the rollers are placed inside it, and the hangers are secured to the door panel. Then, the bolts are used to connect the sliding door and the rollers, completing the installation of the sliding door.

[0005] When installing the hanging roller, it can only be inserted from the end face of the track profile, and cannot be disassembled from the bottom of the track profile. Since both ends of the track profile are blocked by the wall after installation, if components are damaged later, they cannot be directly removed from the track profile, making disassembly difficult and troublesome during maintenance. Furthermore, it may be necessary to break through the wall at the end face of the track profile to remove it. Therefore, developing a quick-installation buffer hanging roller is essential. Summary of the Invention

[0006] [Summary of the Invention]

[0007] To address at least one of the aforementioned problems, this invention proposes a novel structural solution. The quick-release buffer wheel employs the following technical solution:

[0008] A quick-release buffer roller includes a housing, a buffer rod, and a slider. The housing is connected to the slider so that the housing slides with the assistance of the slider. The housing has a cavity, the buffer rod is installed in the cavity, and the end of the buffer rod is connected to a fastener. The buffer rod can extend and retract within the cavity by moving the fastener.

[0009] The slider includes a pulley seat, a wheel support, and a wheel. The pulley seat has several movable positions, and each movable position has a pivot point for the wheel support to connect to, allowing the wheel support to rotate around the pivot point. The wheel support extends to a shaft, and the wheel is connected to the shaft and can rotate freely around the shaft. The wheel moves out of or into the movable position as the wheel support rotates.

[0010] The housing has an access position, and a connecting joint extends from the end of the pulley seat. The connecting joint extends into and is hinged to the access position so that the slider can rotate relative to the housing.

[0011] Preferably, the end of the housing is provided with a cavity, and a connecting member is installed in the cavity. The access position is provided on the connecting member. The connecting member is provided with a shaft hole, and the mating head extending into the access position is connected to the shaft hole through a pin to be hinged to the connecting member, so that the slider rotates with the pin as the fulcrum.

[0012] Preferably, the connector is provided with a first limiting point and a second limiting point, both of which are located at the access position, and the rotating slider abuts against the first limiting point and the second limiting point respectively.

[0013] Preferably, the connector includes a top part and a connector, the top part and the connector are set at different heights to form a height difference, the top part moves to abut against the first limiting point, and the connector moves to abut against the second limiting point, so that the rotation range of the slider is limited between the first limiting point and the second limiting point.

[0014] Preferably, the movable position is provided with a protruding post as a rotation fulcrum, and the wheel support is inserted into the protruding post so that the wheel support rotates about the protruding post as an axis.

[0015] Preferably, a limiting post extends from the end face of the movable position, and the wheel support is provided with a guide groove. The limiting post is connected to the guide groove, and the rotating wheel support is connected to the end of the guide groove through the limiting post, thereby limiting the rotation range of the wheel support.

[0016] Preferably, the movable position includes a first movable position and a second movable position, and a partition extends from the end face of the pulley seat to separate the first movable position from the second movable position.

[0017] Preferably, the buffer rod has locking heads at both ends, and the fastener has a fastening groove. The locking heads and fastening grooves are connected to connect the buffer rod and the fastener together, so that the fastener moves with the end of the buffer rod.

[0018] Preferably, guide posts extend from both sides of the fastener, the housing is provided with guide grooves, and the end of the guide groove is provided with a bend. The guide posts are connected to the guide grooves so that the fastener slides along the guide grooves, and the guide posts move to the end of the guide grooves and are engaged with the bend, so as to restrict the movement of the fastener by means of the bend.

[0019] Preferably, when the fastener moves to the stop position of the hanging door, it engages with the latch through the stop to make the fastener movable.

[0020] The beneficial effects of this invention compared to the prior art are as follows:

[0021] This invention provides a quick-installation buffer wheel. When the buffer wheel is connected to the track, rotating the wheel support causes the wheel to extend beyond its movable position, bringing it into contact with the track, allowing the buffer wheel to slide within the track. To remove the buffer wheel from the track, rotating the wheel support retracts the wheel into its movable position, disconnecting the wheel from the track, thus removing the buffer wheel. For ease of installation and removal, the slider and housing employ a hinged structure, allowing the slider to rotate relative to the housing, specifically rotating downwards relative to the housing. This lowers the operating position, eliminating the need for horizontal operation relative to the track, avoiding space limitations, and making it more convenient to use. Attached Figure Description

[0022] [Attached Image Description]

[0023] Figure 1 is a schematic diagram of the first usage state of the quick-installation buffer wheel in a preferred embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of the second usage state of the quick-installation buffer wheel in a preferred embodiment of the present invention;

[0025] Figure 3 is a partially exploded view of the quick-installation buffer wheel in a preferred embodiment of the present invention;

[0026] Figure 4 is a schematic diagram of a partial structure of the slider in a preferred embodiment of the present invention;

[0027] Figure 5 is a schematic diagram of the connector in a preferred embodiment of the present invention;

[0028] Figure 6 is a schematic diagram of the wheel support in a preferred embodiment of the present invention;

[0029] Figure 7 is a schematic diagram of the slider rotating relative to the housing in a preferred embodiment of the present invention;

[0030] Figure 8 is a schematic diagram of the exploded structure of the quick-installation buffer roller in a preferred embodiment of the present invention;

[0031] Figure 9 is a schematic diagram of the first state of the quick-installation buffer wheel and the track in a preferred embodiment of the present invention;

[0032] Figure 10 is a schematic diagram of the second state of the quick-installation buffer wheel and the track in a preferred embodiment of the present invention. Detailed Implementation

[0033]

Detailed Implementation Methods

[0034] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0035] In this invention, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and its beneficial effects clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the invention.

[0037] The preferred embodiment of the present invention is shown in Figures 1 to 10. A quick-release buffer wheel includes a housing 1, a buffer rod 8, and a slider 2. The housing 1 is connected to the slider 2 so that the housing 1 slides with the assistance of the slider 2. The housing 1 has a cavity 14, and the buffer rod 8 is installed in the cavity 14. The end of the buffer rod 8 is connected to a fastener 81. The buffer rod 8 can extend and retract within the cavity 14 by moving the fastener 81. The slider 2 includes a pulley seat 3, a wheel support 4, and a wheel 5. The pulley seat 3 is provided with a plurality of movable positions 31. The movable positions 31 are provided with a rotation fulcrum 38 for the wheel support 4 to connect, so that the wheel support 4 rotates around the rotation fulcrum 38. The wheel support 4 extends to a shaft core 51. The wheel 5 is connected to the shaft core 51 and rotates freely on the shaft core 51. The wheel 5 moves out of or into the movable position 31 as the wheel support 4 rotates. Furthermore, the movable position 31 includes a first movable position 32 and a second movable position 33, and a partition 34 extends from the end face of the pulley seat 3 to separate the first movable position 32 from the second movable position 33.

[0038] The housing 1 has an access position 11, and a connecting joint 35 extends from the end of the pulley seat 3. The connecting joint 35 extends into and is hinged to the access position 11, so that the slider 2 can rotate relative to the housing 1. The end of the housing 1 has a slot 12, and a connecting member 6 is installed in the slot 12. The connecting member 6 and the housing 1 have a detachable assembly structure for easy maintenance and replacement. The connecting member 6 is fixed to the housing 1 by screws, and the access position is located on the connecting member 6. The access position 11 has an open opening for the connecting joint 35 to be hinged. The connecting member 6 has a shaft hole 61. The connecting joint 35 extending into the access position 11 is connected to the shaft hole 61 by a pin 62 to be hinged to the connecting member 6, so that the slider 2 can rotate with the pin 62 as the fulcrum.

[0039] The connector 6 is provided with a first limiting point 63 and a second limiting point 64, both of which are located at the access position 11. The rotating slider 2 abuts against the first limiting point 63 and the second limiting point 64 respectively. Further, the mating joint 35 includes a top contact part 36 and a joint 37. The top contact part 36 and the joint 37 have a stepped structure, so that the top contact part 36 and the joint 37 are at different horizontal levels, forming a height difference. This facilitates the top contact part 36 to move and abut against the first limiting point 63, and the joint 37 to move and abut against the second limiting point 64. The first limiting point and the second limiting point are at different heights to cooperate with the mating joint, so that the rotation range of the slider 2 is limited between the first limiting point 63 and the second limiting point 64.

[0040] The movable position 31 has a protruding post as a rotation fulcrum 38. The protruding post is a conventional column. The wheel support 4 has a corresponding insertion hole. The wheel support 4 is inserted into the protruding post so that the wheel support 4 rotates around the protruding post as an axis. A limiting post 41 extends from the end face of the movable position 31. The wheel support 4 has a guide groove 42. The limiting post 41 is connected to the guide groove 42. The rotating wheel support 4 is connected to the end of the guide groove 42 through the limiting post 41, thereby limiting the rotation range of the wheel support 4.

[0041] The buffer rod 8 has locking heads 82 at both ends, and the fastener 81 has a fastening groove 83. The locking heads 82 and the fastening groove 83 connect to the buffer rod 8 and the fastener 81, so that the fastener 81 moves with the end of the buffer rod 8. Guide posts 84 and guide blocks 85 extend from both sides of the fastener 81, respectively. The housing 1 has a guide groove 15, and the end of the guide groove 15 has a bending position 16. The guide post 84 is connected to the guide groove 15 so that the fastener 81 slides along the guide groove 15. When the guide post 84 moves to the end of the guide groove 15, it is engaged with the bending position 16 to restrict the movement of the fastener 81. When the tension on the fastener is greater than the limiting force of the bending position, the fastener can be pulled away from the bending position. The guide block 85 is connected to the guide groove 15 to cooperate with the sliding of the fastener 81. The guide block 85 and the guide post 84 are in different positions of the fastener. When the guide post 84 is engaged with the bending position 16, the guide block 85 is located in the guide groove 15. The fastener 8 is provided with a latch 86. The hanging door is generally equipped with a stop block. When the fastener of the buffer wheel moves to the stop block position, the stop block will engage with the latch of the fastener and drive the fastener to move. The fastener is connected to the end of the buffer rod. The moving fastener will cause the buffer rod to extend and retract, thereby achieving the buffering effect. The fastener is located at both ends of the buffer rod, so that the buffer wheel has a two-way buffering function.

[0042] When installing the hanging wheel, it can only be inserted from the end face of the track profile. It cannot be disassembled from the bottom of the track profile. Since the two ends of the track profile will be blocked by the wall after installation, if the parts are damaged later, they cannot be directly removed from the track profile. It is difficult to disassemble and very troublesome during maintenance. It may also be necessary to break the wall at the end face of the track profile to remove it.

[0043] To address the aforementioned issues, this solution proposes a quick-installation buffer roller. The sliding door is connected to the track 7 via the buffer roller. The track 7 has a sliding cavity 71 with a flange 72 to support the buffer roller. The quick-installation buffer roller includes a housing 1 and a slider 2. The slider 2 includes a pulley seat 3, a wheel support 4, and a wheel 5. The wheel 5 is mounted on the wheel support 4 and rotates with it. When connecting the buffer roller to the track, the buffer roller is placed into the sliding cavity of the track. By rotating the wheel support 4, the wheel 5 extends out of the movable position 31, causing the wheel 5 to abut against the flange 72 of the track, allowing the buffer roller to slide within the sliding cavity. When it is necessary to remove the buffer wheel from the track, rotate the wheel support 4 to retract the wheel 5 into the movable position 31, and disconnect the wheel 5 from the folded edge 72, so that the buffer wheel can be removed from the track. At the same time, for easy disassembly and assembly, the slider 2 and the housing 1 adopt a hinged structure, which allows the slider to rotate relative to the housing, and the slider rotates downward relative to the housing, thereby reducing the operating position. It does not require horizontal operation on the track, avoids being restricted by the operating space, and is more convenient to use.

[0044] In the description of this specification, references to terms such as "an embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. Illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] Based on the above description of the structure and principle, those skilled in the art should understand that the present invention is not limited to the specific embodiments described above. Improvements and substitutions made using techniques known in the art based on the present invention all fall within the protection scope of the present invention and should be defined by the claims.

Claims

1. A quick-installation buffer sheave, characterized in that: It includes a housing, a buffer rod, and a slider. The housing is connected to the slider so that the housing slides with the slider's assistance. The housing has a cavity, and the buffer rod is installed in the cavity. The end of the buffer rod is connected to a fastener, and the buffer rod is moved by the fastener to extend and retract within the cavity. The slider includes a pulley seat, a wheel support, and a wheel. The pulley seat has several movable positions, and each movable position has a pivot point for the wheel support to connect to, allowing the wheel support to rotate around the pivot point. The wheel support extends to a shaft, and the wheel is connected to the shaft and rotates freely around it. The wheel moves out of or into the movable position as the wheel support rotates. The housing has an access position, and the end of the pulley seat extends to a butt joint, which extends into and hinges to the access position, allowing the slider to rotate relative to the housing.

2. The quick-release buffer sheave according to claim 1, characterized in that: The end of the housing is provided with a gap, and a connecting member is installed in the gap. The access position is provided on the connecting member. The connecting member is provided with a shaft hole. The mating head that extends into the access position is connected to the shaft hole through a pin to be hinged to the connecting member, so that the slider rotates with the pin as the fulcrum.

3. The quick-installation buffer sheave according to claim 2, characterized in that: The connector is provided with a first limiting point and a second limiting point. Both the first limiting point and the second limiting point are located at the access position, and the rotating slider abuts against the first limiting point and the second limiting point respectively.

4. The quick-release buffer sheave according to claim 3, characterized in that: The connector includes a top part and a connector. The top part and the connector are set at different heights to form a height difference. The top part moves to abut against the first limiting point, and the connector moves to abut against the second limiting point, so that the rotation range of the slider is limited between the first limiting point and the second limiting point.

5. The quick-installation buffer sheave according to claim 1, characterized in that: The movable position is provided with a protruding post as a pivot point for rotation, and the wheel support is inserted into the protruding post so that the wheel support can rotate around the protruding post as an axis.

6. The quick-installation buffer sheave according to claim 1, characterized in that: The end face of the movable position extends into a limiting post, and the wheel support is provided with a guide groove. The limiting post is connected to the guide groove. The rotating wheel support is connected to the end of the guide groove through the limiting post, thereby limiting the rotation range of the wheel support.

7. The quick-installation buffer sheave according to claim 1, characterized in that: The movable position includes a first movable position and a second movable position, and a partition extends from the end face of the pulley seat to separate the first movable position from the second movable position.

8. The quick-release buffer sheave according to claim 1, characterized in that: The buffer rod has clips at both ends and fasteners have slots. The clips engage with the slots to connect the buffer rod and the fasteners, allowing the fasteners to move with the ends of the buffer rod.

9. The quick-installation buffer sheave according to claim 1, characterized in that: Guide posts and guide blocks extend from both sides of the fastener. The housing is provided with a guide groove, and the end of the guide groove is provided with a bend. The guide post is connected to the guide groove so that the fastener slides along the guide groove. The guide post moves to the end of the guide groove and is engaged with the bend to restrict the movement of the fastener. The guide block is connected to the guide groove to cooperate with the sliding of the fastener.

10. The quick-release buffer sheave according to claim 1, characterized in that: When the fastener moves to the stop position of the hanging door, the stop engages with the fastener's slot to make the fastener movable.

Citation Information

Patent Citations

  • Buffer and pulley assembly and pulley and sliding rail mechanism for sliding door

    CN111779398A

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