Buffer assembly based on door and window safety protection
By introducing arc-shaped sliding connectors and guides into the buffer assembly, eliminating the rotation function, and adopting threaded connections and a lightweight design, the problem of severe wear on the movable buckle is solved, achieving a more stable and flexible buffering effect and a lighter weight.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI GUPAI METAL PROD CO LTD
- Filing Date
- 2023-08-23
- Publication Date
- 2026-05-01
AI Technical Summary
In the prior art, the movable buckle, connecting shaft and guide block are integrated into one structure, which leads to severe wear and affects the service life of the buffer.
The shell is composed of two symmetrical shells spliced together. The piston end of the buffer is connected to a movable buckle. It slides through the arc-shaped sliding connector and guide, eliminating the rotation function of the protrusion. It adopts a threaded connection method, and designs a flat sliding port and an L-shaped slide groove. The outside is provided with a through hole to achieve lightweight.
It reduces wear on the connecting shaft and guide block, extends service life, achieves a more flexible and stable buffering effect, and reduces overall weight.
Smart Images

Figure CN224187398U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sliding door buffer technology, specifically to a buffer component based on door and window safety protection. Background Technology
[0002] Existing technology patent CN 216476876 U discloses a reverse gas spring damper with good stability and high strength. The technical solution includes: a housing, a gas spring fixedly installed within the housing, and a movable buckle slidably installed within the housing. The movable buckle has a rotatable connecting shaft in the middle. The piston rod of the gas spring passes through a slot at the front end of the movable buckle and connects to the connecting shaft. Furthermore, the connecting shaft has first guide blocks on both sides that slide in a guide groove on the inner wall of the housing. The beneficial effect is that the connection between the movable buckle and the piston rod via the connecting shaft in the middle of the movable buckle, and the sliding engagement of the connecting shaft with the guide groove in the housing via the guide blocks on both sides, improves the stability and strength of the connection between the movable buckle and the piston rod.
[0003] The aforementioned prior art incorporates a connecting shaft within the movable buckle that connects to the piston end of the buffer. Since the movable buckle needs to swing at a certain angle to be positioned within the housing after being retracted, the connection between the connecting shaft and the buffer, secured by a threaded connection, necessitates a rotational connection to accommodate the buckle's swing. However, this design has drawbacks. The connecting shaft and the first guide block on the movable buckle are a single, integrated structure. Therefore, the buckle's swing and radial displacement directly act on the connecting shaft and guide block. These two distinct forces increase wear on the structure, making the integrated structure of the connecting shaft and the first guide block highly susceptible to wear. Utility Model Content
[0004] This invention proposes a buffer component for door and window safety protection, which solves the problems mentioned in the background art.
[0005] The technical solution of this utility model is implemented as follows:
[0006] The buffer assembly for door and window safety protection includes a housing composed of two symmetrical shells spliced together. A buffer is provided on one side inside the housing, and a movable buckle connected to the piston end of the buffer slides radially on the other side inside the housing.
[0007] The piston end of the buffer is provided with a connector that extends into the movable buckle and slides in an arc. The movable buckle is provided with a guide part that cooperates with the connector to slide in an arc. The swing of the movable buckle after it slides radially inside the housing allows the connector to cooperate with the guide part to slide in an arc and pull the movable buckle.
[0008] Furthermore, the guide portion includes a fan-shaped adapter groove, the fan-shaped design of which provides space compensation for the connector to slide in an arc within the movable buckle.
[0009] Furthermore, the guide portion also includes arc-shaped guide grooves disposed on both sides of the adapter groove, and the outer side of the connector slides in an arc shape in accordance with the arc design of the guide groove.
[0010] Furthermore, the connector is spherical, and the inner wall of the guide groove is arched. The spherical design of the connector prevents it from falling off by cooperating with the arched inner wall of the guide groove.
[0011] Furthermore, the piston end of the buffer is assembled with the connector via a threaded connection, and the connection is located on the side of the connector away from the movable buckle.
[0012] Furthermore, the movable buckle has a flat shape on both sides, and a sliding opening is opened on the side of the housing away from the buffer. The sliding opening accommodates the movable buckle and allows it to slide.
[0013] Furthermore, the housing has an L-shaped groove located on the sliding opening, and two protrusions on both sides of the movable buckle slide along the L-shaped groove. The protrusion near the buffer side transitions from the long side of the L-shape to the short side of the L-shape after the movable buckle swings.
[0014] Furthermore, multiple through holes are provided on each of the four sides of the outer shell, ensuring that the shell is a lightweight structure.
[0015] The beneficial effects of the technical solution provided in this application are as follows:
[0016] This buffer assembly for door and window safety protection transfers the force that would otherwise act directly on the connecting shaft and guide block to the sliding parts of the connecting shaft and guide block by introducing connectors and guides. This reduces the force on the connecting shaft and guide block, thereby reducing wear and extending service life. The rotating function of the protrusion is eliminated, while its sliding function along the L-shaped groove is retained, further reducing wear and tear. Attached Figure Description
[0017] 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.
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2This is an exploded view of the present invention;
[0020] Figure 3 This is an enlarged schematic diagram of the movable buckle and connector of this utility model.
[0021] In the figure: 10 housing, 11 cover, 12 through hole, 13 sliding port, 14 sliding groove, 20 buffer, 30 movable buckle, 31 protrusion, 40 connector, 50 guide part, 51 adapter groove, 52 guide groove. Detailed Implementation
[0022] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. 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.
[0023] Reference Figure 1-3 The buffer assembly for door and window safety protection includes a housing 10 composed of two symmetrical shells 11 joined together. A buffer 20 is located on one side of the interior of the housing 10, and a movable buckle 30, connected to the piston end of the buffer 20, slides radially on the other side of the interior of the housing 10. Firstly, the housing 10 is composed of two symmetrically arranged shells 11 joined together, enabling easy assembly and disassembly. This also ensures that the internal structures on both sides of the housing 10 are symmetrical, allowing the movable buckle 30 to slide smoothly within the housing 10. The buffer 20, located on one side of the interior of the housing 10, has a buffering function and is connected to the movable buckle 30. This buffer slows down the sliding action of the movable buckle 30 within the housing 10. The buffering performance of the buffer 20 restrains the rapid sliding of the movable buckle 30, reducing its sliding speed and preventing excessive collisions due to excessive speed, thus achieving the purpose of safety protection.
[0024] In the prior art, integrating the limiting components for the sliding and swinging movements of the movable buckle 30 onto the same part (such as the utility model patent with publication number CN 216476876 U) increases the wear intensity of this part. Therefore, to avoid accelerating wear, in some embodiments of this application, the force-bearing component for the swinging movement is transferred. Specifically, the piston end of the buffer 20 is provided with a connecting member 40 that extends into the movable buckle 30 and slides in an arc. The movable buckle 30 has a guide portion 50 that cooperates with the connecting member 40 to slide in an arc within the connecting member 40. The swinging of the movable buckle 30 after radial sliding within the housing 10 allows the connecting member 40 to slide in an arc within the guide portion 50, thereby pulling the movable buckle 30. In the above technical solution, the connecting member 40 connected to the piston end of the buffer 20 slides in an arc within the guide portion 50 of the movable buckle 30. This not only simplifies the structure but also prevents the sliding movement of the movable buckle 30 from directly acting on the connecting member 40. During the swinging process of the movable buckle 30, its internal guide part 50 slides along the outside of the connector 40, thereby traction of the swinging motion of the movable buckle 30.
[0025] To address the space constraints that may be encountered when the connector 40 slides in an arc within the movable buckle 30, in conventional designs, when the connector 40 swings within the movable buckle 30, the limiting effect of the movable buckle 30 may prevent sufficient space for the connector 40 to complete its arc-shaped sliding. In some embodiments, the guide portion 50 includes a fan-shaped adapter groove 51. The fan-shaped design of the adapter groove 51 provides space compensation for the connector 40 to slide in an arc within the movable buckle 30. Specifically, the fan-shaped design of the adapter groove 51 allows the movable buckle 30 to swing freely, enabling the connector 40 to fully utilize the entire design space and achieve unobstructed arc-shaped sliding. The connector 40 can slide freely in an arc within the movable buckle 30 without space constraints. Through this design, the buffer assembly can move more flexibly and achieve a more efficient buffering effect.
[0026] To address the space limitation issue of the connector 40, a fan-shaped adapter groove 51 is provided in the movable buckle 30 for the connector 40 to swing within the buckle 30. However, while this provides swing space, the connector 40 cannot be pulled along the arc-shaped trajectory required by the movable buckle 30. In some embodiments, the guide portion 50 further includes arc-shaped guide grooves 52 on both sides of the adapter groove 51, with the outer side of the connector 40 sliding in an arc shape in accordance with the arc design of the guide groove 52. Its outer side cooperates with the arc-shaped guide groove 52, ensuring that the movement trajectory of the connector 40 matches the arc-shaped trajectory required by the movable buckle 30. The effect of this technical solution is that the connector 40 can slide freely in an arc shape within the movable buckle 30 and be pulled along the arc-shaped trajectory required by the movable buckle 30. Through this design, the connector 40 can slide more accurately and effectively achieve the required movement path. In summary, by setting an arc-shaped guide groove 52 in the guide section 50 and combining it with the outer arc-shaped design of the connector 40, this technical solution solves the technical problem that the connector 40 cannot be pulled along the required arc-shaped trajectory when sliding within the movable buckle 30, thus achieving a more accurate sliding effect.
[0027] In a further embodiment, the connector 40 is spherical, and the inner wall of the guide groove 52 is arched. The spherical design of the connector 40, in conjunction with the arched inner wall of the guide groove 52, prevents it from falling off. The arched inner wall restricts the range of motion of the connector 40, keeping it tightly fixed inside the guide groove 52. The connector 40 remains stable during sliding and avoids accidental disengagement from the guide groove 52 due to external forces or movement. This ensures that the connector 40 always slides in the correct position, maintaining an accurate movement trajectory and functionality. Specifically, when the connector 40 is inside the guide groove 52, its spherical design fits tightly with the arched inner wall of the guide groove 52, providing additional restraint and support to prevent the connector 40 from falling off. This design ensures the stability and reliability of the connector 40 as it slides along the desired arc trajectory within the movable buckle 30. In summary, by designing the connector 40 as a spherical shape and cooperating with the arched inner wall of the guide groove 52, this technical solution solves the technical problem that the connector 40 may detach during the sliding process, and achieves stable sliding and reliable fixation of the connector 40.
[0028] In one embodiment, the piston end of the buffer 20 is assembled to the connector 40 via a threaded connection, with the connection point located on the side of the connector 40 furthest from the movable buckle 30. This technical solution solves the technical problems of the connection method and position between the buffer 20 and the connector 40, achieving better technical results. By using a threaded connection to assemble the piston end of the buffer 20 to the connector 40, with the connection point located on the side of the connector 40 furthest from the movable buckle 30, a firm connection between the connector 40 and the buffer 20 is achieved. This connection method ensures the stability and reliability between the connector 40 and the buffer 20, enabling them to effectively transmit force and absorb energy during buffering motion. Specifically, the threaded connection provides a more robust connection, ensuring a tight and stable connection between the connector 40 and the buffer 20. The selection of the position of the connector 40 furthest from the movable buckle 30 reduces the risk of loosening or disintegration of the connection due to swaying and movement. This design allows the connector 40 and the buffer 20 to work effectively together during buffering, providing stable shock absorption and cushioning effects. In summary, by assembling the piston end of the buffer 20 with the connector 40 through a threaded connection and placing the connection point on the side of the connector 40 away from the movable buckle 30, this technical solution solves the technical problems of the connection method and position between the connector 40 and the buffer 20, achieving a more stable and reliable connection to provide excellent buffering effect.
[0029] In some embodiments, the movable buckle 30 has flattened sides, and a sliding opening 13 is formed on the side of the housing 10 away from the buffer 20. The sliding opening 13 accommodates the movable buckle 30 and allows it to slide. This technical solution solves the space limitation problem that the movable buckle 30 may encounter when sliding within the housing 10, achieving a better technical effect. This design provides additional space for the movable buckle 30 to achieve its sliding function in situations with limited space. Specifically, the flattened sides of the movable buckle 30 make it easier to adapt to the shape of the sliding opening 13 within the housing 10, and allow full utilization of the space in the sliding opening 13 during sliding. The sliding opening 13 is located away from the buffer 20, avoiding interference with the buffer 20 and providing more spacious space for the movable buckle 30 to slide. The effect of this technical solution is that the movable buckle 30 can slide freely within the housing 10 without being affected by space limitations. This ensures that the movable buckle 30 can move smoothly and coordinate with other components such as the connector 40 to achieve overall movement and cushioning effects. In summary, by designing flat shapes on both sides of the movable buckle 30 and opening a sliding opening 13 on the side of the housing 10 away from the buffer 20, this technical solution solves the space limitation problem that the movable buckle 30 may encounter when sliding inside the housing, realizes smooth sliding motion, and ensures the coordinated operation of the overall system.
[0030] In some embodiments, the housing 11 has an L-shaped groove 14 located on the sliding opening 13. Two protrusions 31 are provided on both sides of the movable buckle 30, sliding along the L-shaped groove 14. The protrusion 31 near the buffer 20 transitions from the long side of the L-shape to the short side after the movable buckle 30 swings. This technical solution solves the technical problem of position change and transition that the movable buckle 30 may encounter during sliding, achieving better technical results. The technical effect of this design is that the combination of the L-shaped groove 14 and the protrusions 31 realizes the position change and transition of the movable buckle 30 during sliding. Specifically, the protrusions 31 slide along the trajectory of the L-shaped groove 14, allowing the movable buckle 30 to effectively change its position during swinging. The protrusion 31 near the buffer 20 transitions from the long side to the short side of the L-shaped groove 14 after swinging, thus realizing the position change and transition. This design allows the movable buckle 30 to slide more flexibly and maintain a stable position during sliding. The sliding of the protrusion 31 is guided by the L-shaped groove 14, ensuring the smoothness and accuracy of the position change and transition of the movable buckle 30. In summary, by providing an L-shaped groove 14 inside the housing 11 and providing protrusions 31 that slide along the groove 14 on both sides of the movable buckle 30, this technical solution solves the technical problem of position change and transition of the movable buckle 30 during sliding, realizing flexible and stable sliding of the movable buckle 30 and ensuring the accuracy of position change.
[0031] In a further embodiment, multiple parallel through holes 12 are formed on each of the four outer sides of the housing 10, ensuring that the housing 10 is a lightweight structure. By forming multiple parallel through holes 12, the overall weight of the housing 10 can be reduced. The presence of the through holes 12 reduces the amount of solid material used in the housing 10, thereby reducing the amount of material used and lightening the overall weight of the structure. Specifically, the housing 10 can achieve a lightweight design by forming multiple parallel through holes 12 on its four sides. Through a reasonable arrangement of the through holes 12, the strength and rigidity of the housing structure can be maintained, while reducing its total weight without compromising structural stability. This design allows the housing 10 to maintain sufficient strength while reducing the overall weight of the structure. The lightweight housing structure has better portability, ease of installation, and speed response capabilities, making it suitable for a wider range of applications. In summary, by forming multiple parallel through holes 12 on the four outer sides of the housing 10, this technical solution solves the technical problem of a lightweight housing 10 structure, achieving lightweighting of the housing 10 structure and providing better portability and speed response capabilities.
[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A buffer assembly for door and window safety protection, including a housing (10), a buffer (20) is provided on one side inside the housing (10), and a movable buckle (30) is provided on the other side inside the housing (10), with one side of the movable buckle (30) connected to the piston end of the buffer (20); The housing (10) has a sliding opening (13) inside, and the movable buckle (30) is adapted to the sliding opening (13) and slides; L-shaped grooves (14) are opened on both sides of the housing (10) in the sliding opening (13), and the included angle of the L-shaped grooves (14) is arc-shaped. Two protrusions (31) are provided on both sides of the movable buckle (30) and slide along the L-shaped grooves (14). The top of the side of the movable buckle (30) connected to the buffer (20) is raised by the upward movement of the protrusions (31) near the buffer (20) along the included angle of the L-shaped grooves (14). The feature is that: The piston end of the buffer (20) is provided with a connector (40), and the movable buckle (30) is provided with an arc-shaped guide (50). The connector (40) extends into the guide (50) of the movable buckle (30) and slides along its arc-shaped design.
2. The buffer component based on door and window safety protection as described in claim 1, characterized in that, The guide part (50) includes a fan-shaped adapter groove (51), which is adapted to the outside of the piston end of the buffer (20). The lifting movement of the movable buckle (30) provides motion space compensation to the piston end of the buffer (20) through the adapter groove (51).
3. The buffer component based on door and window safety protection as described in claim 2, characterized in that, The guide part (50) also includes guide grooves (52) provided on both sides of the adapter groove (51), and the outer side of the connector (40) is adapted in the guide groove (52); The guide groove (52) is arc-shaped, and the inner wall of the arc is arched. The connector (40) is spherical, and the spherical connector (40) fits in the arched inner wall of the arc-shaped guide groove (52) and slides.
4. The buffer component based on door and window safety protection as described in claim 3, characterized in that, The connection between the connector (40) and the piston end of the buffer (20) is a threaded connection, and the connection is located on the side of the connector (40) away from the movable buckle (30).
5. The door and window security based buffer assembly of claim 1, wherein, The shell (10) has multiple through holes (12) arranged in parallel on each of its four outer sides, and the through holes (12) ensure that the shell (10) is a lightweight structure.
Citation Information
Patent Citations
Reverse air spring buffer
CN216476876U