A monorail buffer
By adopting the design of a sliding buckle with an arc-shaped front end and a bottom protrusion in the sliding door buffer, the problem of unstable switching caused by slide rail wear is solved, and stable switching and long service life of the buffer are achieved.
Patent Information
- Application Number
- CN202211372493.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-11-03
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2042-11-03
AI Technical Summary
The existing sliding door buffer's rail-guided design is prone to wear after long-term use, leading to slippage and derailment during switching, which affects the stability of use.
The design adopts a sliding buckle with an arc-shaped front end and a bottom boss. By switching between the connection and disconnection states of the sliding buckle and the buckle rod, the inclined surface of the boss and the structure of the buckle ensure that the sliding buckle can still stably switch between buffer states during wear.
It effectively prevents buffer tripping and state switching failure, thus improving service life and operational stability.
Smart Images

Figure CN115584901B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a rail buffer, specifically a rail buffer with an arc-shaped latch at the front end of the sliding buckle. Background Technology
[0002] Installing sliding doors on room doors and cabinet doors is very common in the current market. In the installation of sliding doors, the sliding damper is one of the key components. The sliding damper in the current market uses a latching mechanism where the sliding damper is guided to swing by an arc at one end of the sliding rail, thereby switching between the damper's buffered and non-buffered states. However, after long-term use, this sliding rail-guided state switching is prone to slippage and failure due to wear of the sliding rail. At the same time, the sliding rail-guided system is also prone to derailment, causing the switching to be in an abnormal, stuck state. Summary of the Invention
[0003] The purpose of this invention is to provide a rail buffer that uses an arc-shaped latch at the front end of the sliding buckle in conjunction with a protrusion at the bottom to switch between the connection and disengagement states of the sliding buckle and the buckle rod, thereby effectively solving the instability problems such as disengagement of traditional buffers.
[0004] The technical solution of this invention is based on a housing, a buffer cylinder, and a sliding buckle. The housing has a top-opening groove in the middle section, a slide rail inside the groove, and the sliding buckle is mounted on the slide rail within the groove and can slide left and right. The buffer cylinder is installed at the right end of the groove, and the front end of the telescopic rod of the buffer cylinder is connected to the right end of the sliding buckle. The key feature is that a buckle rod is provided at the left end of the groove in the housing, and a latch is provided at the left end of the sliding buckle. The latch extends upwards in an arc shape within the sliding buckle. A boss protrudes downwards from the bottom of the sliding buckle. When the latch of the sliding buckle connects with the buckle rod, a strip-shaped locking hole is provided at the bottom of the housing and at the corresponding position on the boss. After the sliding buckle swings, the boss can pass through the locking hole and protrude outwards from the bottom of the housing.
[0005] The snap fastener described in this invention has a semi-circular end extending inside the snap fastener, and the diameter of the semi-circular end is equal to or greater than the diameter of the buckle rod. The snap fastener and the buckle rod are positioned to the left and right respectively.
[0006] The sliding buckle of the present invention has a metal sheet I in the middle layer, and the shape of the metal sheet I is the same as the outer contour of the sliding buckle.
[0007] The sliding buckle of the present invention is provided with a spring buckle at the top. The spring buckle is shaped like a "Z". A metal piece II is inserted in the middle of the spring buckle. The metal piece II is also bent in a "Z" shape.
[0008] The bottom of the protrusion of the sliding buckle described in this invention is an inclined surface, which slopes from high to low from left to right.
[0009] The left end of the shell is provided with two pulley mounting holes, and the right end is provided with one pulley mounting hole.
[0010] The working principle of the application is that the left end of the slide buckle of the buffer is provided with an upwardly curved bayonet, the bayonet is opposite to the buckle rod in the shell, when the slide buckle moves in the sliding groove of the shell to meet the buckle rod, the buckle rod will slide into the bayonet, and at the same time force the slide buckle to swing downward to make the elastic buckle of the slide buckle disengage from the smooth door, so that the smooth door is in a non-buffer state, when the smooth door slides to the edge frame and needs to be buffered, the smooth door will meet the boss at the bottom of the slide buckle, forcing the slide buckle to swing upward to disengage from the buckle rod and return to the state of connecting with the smooth door, providing a buffering effect for the smooth door, when the bayonet and the buckle rod are connected, because the bayonet is upwardly curved and extends in the bayonet, there is no disengagement phenomenon, and the disengagement of the slide buckle and the buckle rod is caused by the upward top force of the boss, so the wear of the boss during use will not cause the problem of disengagement state and switching failure, because the boss can be designed to be high enough to meet the long-term wear requirement.
[0011] The application has the advantages of simple and reasonable structure, convenient and fast installation, effective prevention of buffer disengagement and state switching failure, long service life, and stable work. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 is a top view perspective structural schematic diagram of the application;
[0013] Figure 2 is a bottom view perspective structural schematic diagram of the application;
[0014] Figure 3 is a cross-sectional perspective structural schematic diagram of the application in a state of connecting the slide buckle and the buckle rod;
[0015] Figure 4 is a cross-sectional perspective structural schematic diagram of the application in a state of disengaging the slide buckle and the buckle rod;
[0016] Figure 5 is a perspective structural schematic diagram of the slide buckle of the application;
[0017] Figure 6 is a perspective structural schematic diagram of the slide buckle of the application;
[0018] Figure 7 is an exploded perspective structural schematic diagram of the slide buckle of the application; DETAILED DESCRIPTION
[0019] According to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7As shown, the present application is provided with a slide slot with a top opening in the middle section of the shell 1, a slide rail in the slide slot, a slide buckle 2 installed on the slide rail in the slide slot and capable of sliding left and right, a buffer cylinder 3 installed at the right end of the slide slot, and a buckle rod 4 provided at the left end of the slide slot in the shell 1, a left end of the slide buckle 2 provided with a bayonet, the bayonet extending in an arc shape and bending upward in the slide buckle, the bottom of the slide buckle 2 provided with a boss 7, a strip-shaped clamping hole provided on the bottom of the shell and opposite the boss 7 when the bayonet of the slide buckle 2 is connected with the buckle rod 4, and the boss 7 being able to protrude outward from the bottom of the shell after the slide buckle 2 swings.
[0020] The end of the bayonet of the slide buckle 2 extending in the slide buckle is semicircular, and the diameter of the end semicircle is equal to or greater than the diameter of the buckle rod, and the position of the bayonet and the buckle rod 4 is left-right corresponding.
[0021] The middle layer of the slide buckle 2 is provided with a metal sheet I 8, and the shape of the metal sheet I 8 is the same as the outer contour of the slide buckle 2.
[0022] The top of the slide buckle 2 is provided with a spring buckle 6, and the spring buckle 6 is a few characters, and a metal sheet II 5 is inserted in the middle of the spring buckle 6, and the metal sheet II 5 is also a few characters.
[0023] The bottom of the boss 7 of the slide buckle is an inclined surface, which is inclined from high to low from left to right.
[0024] The left end of the shell 1 is provided with two pulley mounting holes, and the right end is provided with one pulley mounting hole.
Claims
1. A suspension rail buffer, comprising a housing, a buffer cylinder, and a sliding buckle, wherein the housing has a groove with a top opening in the middle section, a slide rail is provided in the groove, the sliding buckle is installed on the slide rail in the groove and can slide left and right, the buffer cylinder is installed at the right end of the groove, and the front end of the extension rod of the buffer cylinder is connected to the right end of the sliding buckle, characterized in that: The left end of the slide buckle is provided with a clamping rod, and the left end of the slide buckle is provided with a clamping hole which is curved upward in the slide buckle; the bottom of the slide buckle is provided with a boss which protrudes downward; when the clamping hole of the slide buckle is connected with the clamping rod, the bottom of the shell is provided with a strip-shaped clamping hole which is opposite to the boss; after the slide buckle is swung, the boss can pass through the clamping hole and protrude outward from the bottom of the shell; the end of the clamping hole of the slide buckle which extends in the slide buckle is semicircular, and the diameter of the semicircular end is equal to or greater than the diameter of the clamping rod; the clamping hole and the clamping rod are opposite to each other in position; the top of the slide buckle is provided with a spring buckle which is in the shape of a Chinese character "ji"; a metal sheet II is inserted into the spring buckle; the metal sheet II is also in the shape of a Chinese character "ji"; the bottom of the boss of the slide buckle is an inclined surface which is inclined from high to low from left to right.
2. A suspended rail buffer according to claim 1, characterised in that: The middle layer of the slide buckle is provided with a metal sheet I which is in the same shape as the outer contour of the slide buckle.
3. A suspended rail buffer according to claim 1, wherein: The left end of the shell is provided with two pulley mounting holes, and the right end of the shell is provided with one pulley mounting hole.
Citation Information
Patent Citations
Hanging rail buffer
CN218644105U