Sliding block component and buffering device of buffering sliding door

Abstract

The utility model provides a sliding block component of a buffering sliding door and a buffering device, and is applied to the technical field of buffering sliding doors, the sliding block component is arranged in a sliding groove of a buffering frame in a sliding mode and connected with a buffering component, the sliding groove comprises a linear section and an arc section, and the sliding block component slides and rotates in the linear section and the arc section; and a connecting part is arranged at the rotating center, rotating in the arc section, of the sliding block part and used for being hinged to the buffering part, so that the buffering sliding door has the beneficial effects of being stable in structure and not prone to deformation.

Description

Technical Field

[0001] This application relates to the field of soft-close sliding door technology, and more specifically, to a soft-close sliding door slider component and a soft-close device. Background Technology

[0002] Heavy-duty sliding doors are typically equipped with a buffer device to reduce the noise from the door hitting the frame when it moves to the side, thus extending the lifespan of the sliding door. Currently, sliding door buffer devices typically use pneumatic or hydraulic buffers. For example, Chinese utility model patent CN218668973U, titled "Buffer and Buffer Hanger Structure with Such Buffer," discloses a buffer structure in which the cylinder body is fixed in a housing to prevent impact with the door frame. Simultaneously, a slider is connected to the cylinder support rod. The slider moves back and forth along a groove and engages with a lever during displacement, ensuring the cylinder always contracts in the sliding door's direction, maintaining positive force to guarantee the buffer's long-term normal operation. However, in this method, the slider and cylinder support rod are connected by a hinge, but the hinge point is not at the slider's rotation center. When the slider moves along the groove and disengages from the lever, it rotates around the support rod at the hinge point, causing contact with the support rod and applying pressure. This makes the support rod prone to deformation, hindering its long-term normal operation and further reducing the buffer's lifespan.

[0003] To address the aforementioned issues, existing technologies urgently need improvement. Utility Model Content

[0004] The purpose of this application is to provide a slider component and buffer device for a soft-close sliding door, which has the beneficial effects of structural stability and resistance to deformation.

[0005] In a first aspect, this application provides a slider component for a soft-close sliding door, the technical solution of which is as follows:

[0006] The slider component of the buffer sliding door is slidably disposed in the groove of the buffer frame and connected to the buffer component. The groove includes a straight section and an arc section. The slider component slides and rotates in the straight section and the arc section. A connecting part is provided at the rotation center of the slider component in the arc section. The connecting part is hinged to the buffer component.

[0007] By incorporating a slider component within the groove of the buffer frame, and connecting the slider component to the buffer component, the soft-close sliding door achieves a superior cushioning effect during operation, preventing the door from colliding with the frame when it approaches the edge. The groove includes straight and curved sections, facilitating the slider component's sliding along the straight sections and its rotation upon reaching the curved sections. This disengages the slider component from the restraining block, allowing for smoother movement of the soft-close sliding door. Furthermore, a connecting part is positioned at the center of rotation within the curved section of the slider component, hinged to the buffer component. This prevents the slider component from applying pressure to the buffer component during rotation, thus avoiding deformation and ensuring stability and extended service life. Therefore, this slider component provides the soft-close sliding door with structural stability and resistance to deformation.

[0008] Furthermore, in some technical solutions, a first limiting part protruding upward is provided above the slider component, and a second limiting part protruding upward is also provided on the slider component. The second limiting part is located on one side of the first limiting part and forms a first groove between it and the first limiting part.

[0009] By providing an upwardly protruding first limiting part and a second limiting part above the slider component, with the second limiting part located on one side of the first limiting part and forming a first groove between them, the first groove is used to accommodate the toggle block fixed on the door frame, so that the slider component and the toggle block cooperate and are fixed, and the slider component cooperates with the buffer device to achieve the buffer function.

[0010] Furthermore, in some technical solutions, the first limiting part is located above the connecting part.

[0011] By placing the first limiting part above the connecting part, since the connecting part is located at the rotation center of the slider component, placing the first limiting part above the rotation center provides greater stability compared to placing it at other positions on the slider component.

[0012] Furthermore, in some technical solutions, the second limiting part includes a second limiting plate and an elastic pressure plate that tilts downward from the top of the second limiting plate.

[0013] By setting a downward-sloping elastic pressure plate at the top of the second limiting plate, when the cooperation and fixing structure between the slider component and the lever block malfunctions, the door can be manually pushed or pulled to make the elastic pressure plate contact the lever block. The lever block applies pressure to the elastic pressure plate, squeezing it and causing the second limiting plate to move downward, thereby restoring the normal cooperation and fixing structure between the second limiting part and the lever block.

[0014] Furthermore, in some technical solutions, the second limiting part also includes a third limiting plate that bends from the bottom of the second limiting plate, and the second limiting plate and the third limiting plate form an "L" shape.

[0015] Furthermore, in some technical solutions, the slider component is also provided with a snap-fit ​​groove, which is located below the second limiting plate and snaps into the third limiting plate.

[0016] Furthermore, in some technical solutions, a vertically downward extension is provided below the slider component, which is used to connect with a spring assembly provided below the buffer component.

[0017] Furthermore, in some technical solutions, a second groove is provided in the middle of the extension, and the second groove is used to fix the spring assembly.

[0018] Furthermore, in some technical solutions, multiple weight-reducing grooves are formed on the surface of the slider component.

[0019] Secondly, this application provides a buffer device for a soft-close sliding door, the technical solution of which is as follows:

[0020] The buffer device of the soft sliding door includes a buffer frame with a groove, a buffer component, and a slider component. The slider component is connected to the buffer component and is slidably mounted on the groove. The groove includes a straight section and an arc section. The slider component slides and rotates in the straight section and the arc section. A connecting part is provided at the rotation center of the slider component in the arc section. The connecting part is hinged to the buffer component.

[0021] As can be seen from the above, the sliding door slider component and buffer device provided in this application, by setting the slider component in the groove of the buffer frame and connecting the slider component with the buffer component, enables the sliding door to achieve a good buffering effect during operation, preventing the door body from colliding with the door frame when the sliding door is near the edge. The groove includes a straight section and an arc section, which facilitates the slider component to slide on the straight section of the groove. After running to the arc section, it rotates, causing the slider component to disengage from the block that restricts the slider component, thereby allowing the sliding door to move more smoothly. Furthermore, a connecting part is set at the rotation center of the slider component in the arc section. The connecting part is hinged to the buffer component, so that the slider component does not apply pressure to the buffer component when rotating, avoiding deformation of the buffer component and helping the buffer component to maintain stability and extend its normal operating time. Therefore, with this slider component, the sliding door has the beneficial effects of structural stability and resistance to deformation. Attached Figure Description

[0022] Figure 1 A front view of the buffer device for the buffer sliding door provided in this application.

[0023] Figure 2 Another front view of the buffer device for the buffer sliding door provided in this application.

[0024] Figure 3A front view of the slider component of the buffer sliding door provided in this application.

[0025] Figure 4 Rear view of the slider component of the buffer sliding door provided in this application.

[0026] Figure 5 A perspective view of the slider component of the buffer sliding door provided in this application.

[0027] In the diagram: 100, guide rail; 200, buffer device; 210, buffer component; 220, buffer frame; 221, slide groove; 222, straight section; 223, arc section; 230, slider component; 231, connecting part; 232, first limiting part; 233, second limiting part; 2331, second limiting plate; 2332, elastic pressure plate; 2333, third limiting plate; 234, first groove; 235, snap-fit ​​groove; 236, extension part; 2361, second groove; 237, weight reduction groove; 238, sliding rod; 240, spring assembly; 250, lever. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] Currently, in existing soft-close sliding doors, the connection between the buffer component and the slider component is usually not located at the rotation center of the slider component. This causes the slider component to exert pressure on the buffer component during rotation, making the buffer component prone to deformation and compromising its normal operating time. To address this issue, this application proposes a slider component and a buffer device for a soft-close sliding door.

[0031] For this, please refer to Figures 1 to 5 A slider component for a soft-close sliding door, the technical solution of which is as follows:

[0032] The slider component of the buffer sliding door is slidably disposed in the slide groove 221 of the buffer frame 220 and connected to the buffer component 210. The slide groove 221 includes a straight section 222 and an arc section 223. The slider component 230 slides and rotates in the straight section 222 and the arc section 223. A connecting part 231 is provided at the rotation center of the slider component 230 in the arc section 223. The connecting part is hinged to the buffer component 210.

[0033] In practical applications, a buffer sliding door typically includes at least a guide rail 100, which is fixed to the door frame. A buffer device 200 is installed inside the guide rail 100. This buffer device includes a buffer component 210, a buffer frame 220, and a slider component 230. The slider component 230 is usually connected to both sides of the buffer component 210 in the buffer device 200. The door body is connected to the buffer frame 220 via pulleys, thereby moving the buffer device 200 on the guide rail. A lever is fixed to the door frame to cooperate with the slider component 230. The buffer component 210 can be a gas strut or a hydraulic strut to achieve the buffering effect. The buffer component 210 is horizontally fixed inside the guide rail 100, facilitating the sliding of the slider component 230 in the horizontal direction (i.e., the sliding direction of the buffer sliding door) after it is connected to the buffer component 210. The buffer frame 220 is also located inside the guide rail 100, and a groove 221 is provided on it. The groove 221 is located on one side of the end of the buffer component 210, and is also horizontally arranged, so that the slider component 230 provided on the groove 221 can slide and rotate on the groove 221 after being hinged to the buffer component 210. Figure 1 , Figure 2 As shown, with Figure 2 Taking the direction as an example, the door is on the right side of the guide rail 100. When the door slides to the left, the right slider component 230 engages with the block 250 fixed on the door frame, and is in a relatively stationary state. In reality, it is the slide groove 221 that moves to the left, causing the right slider component 230 to run along the straight segment 222 relative to the slide groove 221. At this time, the door is sliding from right to left, and the right slider component 230 is relatively stationary, applying a rightward force to the buffer component 210. Therefore, a relatively large force is required to push the door at the beginning. When the right slider component 230 moves into the arc segment 223 of the slide groove 221, the slider component 230 rotates and disengages from the right block 250. At this time, the buffer component 210, the slider component 230, and the buffer frame 220 all move with the door, making it relatively easy to push the door to the left until the door moves close to the left side of the door frame. Figure 2The left slider component 230 engages with the toggle block 250 (not shown in the figure) fixed on the left door frame. The left slider component 230 moves from the arc segment 223 to the straight segment 222 relative to the slide groove 221. At this time, the buffer component 210 is subjected to a force to the right. Therefore, when the door moves to the left, it will be subjected to resistance to the right, thereby realizing the buffering function and reducing the noise generated by the door impact with the door frame when the door of the buffer sliding door moves to the side.

[0034] The slide 221 includes a straight section 222 and an arc section 223. When the slider component 230 slides on the straight section 222, it engages with the fixed block 250 on the guide rail 100. In actual operation, the slider component 230 follows the fixed block 250 and remains stationary. The slide 221 drives the door to move, and the slider component 230 moves relative to the slide 221. After the slide 221 drives the door to complete the straight section 222, the slider component 230 falls down along the arc section 223, disengages from the block 250, and then follows the door to operate normally. When the slider component 230 falls along the arc segment 223, the slider component 230 will rotate. A connecting part 231 is provided at the rotation center of the slider component 230. The connecting part 231 is hinged to the buffer component 210, which can ensure that the position of the connecting part 231 remains unchanged when the slider component 230 rotates, so that no pressure is applied to the buffer component 210, and the buffer component 210 can maintain normal operation time. Since the buffer component 210 is a rod structure, the connecting part 231 can be set as an arc-shaped recess to facilitate hinge connection with the buffer component 210.

[0035] Furthermore, in some preferred embodiments, a first limiting part 232 protruding upward is provided above the slider component 230, and a second limiting part 233 protruding upward is also provided on the slider component 230. The second limiting part 233 is provided on one side of the first limiting part 232, and a first groove 234 is formed between the second limiting part 232 and the first limiting part 232.

[0036] In practical applications, preferably, the intersection of each side of the slider component 230 can be set as a smooth arc, which can prevent the slider component 230 from colliding and wearing with other components when rotating in the slide groove 221. A sliding rod 238 with a threaded end can be used to pass through the slider component 230 and the slide groove 221, and then a nut with a diameter larger than the vertical diameter of the slide groove 221 can be used to fix the sliding rod 238, so that the slider component 230 can slide on the slide groove 221 through the sliding rod 238. The slider component 230 has an upwardly protruding first limiting part 232 and a second limiting part 233 above it. The first limiting part 232 is located on one side of the second limiting part 233, which can form a first groove 234 between them. In practice, the first groove 234 is used to accommodate the lever 250, so that the slider component 230 and the lever 250 are engaged. When the slider component 230 moves relative to the slide groove 221 on the straight section 222, it is always fixed together with the lever 250. At the same time, the slider component 230 is hinged with a buffer component 210, which is usually a gas strut or a hydraulic rod. In practice, the slider component 230 is hinged to the end of the gas strut or hydraulic rod. When the slider component 230 and the lever 250 are engaged, the slider component 230 is relatively stationary, and the slide groove 221 moves. Therefore, relative to the slide groove 221, the slider component 230 moves relative to the straight section and drives the gas strut or hydraulic rod to compress gas or liquid, thereby realizing the buffering function. When the slider component 230 slides past the straight section 222 and enters the arc section 223, the sliding rod 238 falls along the arc section 223, and the slider component 230 rotates downwards around the rotation center. The second limiting part 233 first disengages from the lever 250, and then the slider component 230 as a whole disengages from the lever 250, allowing the door to run normally along the guide rail 100. It is understandable that, in actual operation, the door of the buffer sliding door can slide from one end of the guide rail 100 to the other. Figure 2 For example, when the door moves from right to left, the left slider component 230 moves with the door within the arc segment 223 and does not engage with the left lever 250 (not shown in the figure). At the same time, the right slider component 230 moves from the straight segment 222 to the arc segment 223, completing the process of engaging and disengaging with the lever 250 until the left slider 230 meets the left lever 250 and engages with it, applying a rightward force to the buffer component 210 to achieve the buffer function. This reduces the noise of the door colliding with the guide rail 100 when it is close to the side, and also protects the internal structures of the guide rail 100, such as the hanging pulley, slider component 230, buffer device 200, and buffer frame 220, from deformation due to impact.

[0037] For further details, please refer to Figure 3 , Figure 4 In some preferred embodiments, the first limiting part 232 is disposed above the connecting part 231.

[0038] In practical applications, since the connecting portion 231 is located at the rotation center of the slider component 230, placing the first limiting portion 232 above the rotation center provides greater stability compared to placing it at other locations on the slider component 230. Preferably, the first limiting portion 232 is configured as a polygon with a diameter equal to that of the connecting portion 231 in the horizontal direction. This configuration provides greater stability compared to a smaller first limiting portion 232.

[0039] Further, please refer to Figure 3 , Figure 4 In some preferred embodiments, the second limiting part 233 includes a second limiting plate 2331 and an elastic pressure plate 2332 that slopes downward from the top of the second limiting plate 2331.

[0040] In practical applications, by setting a downwardly inclined elastic pressure plate 2332 at the top of the second limiting plate 2331, when an abnormality occurs in the fixing structure of the slider component 230 and the lever 250, such as when a person pushes a door from right to left, under normal circumstances, when the right slider component 230 runs relative to the slide groove 221 on the straight section 222, the lever 250 should be engaged in the first groove 234 and fixed with the slider component 230. In abnormal circumstances, during the running phase on the straight section 222, the lever 250 is located on the right side of the slider component 230 and is fixed with the slider component 230. When the door is pulled to the right, the slider component 230 moves to the right, and the elastic pressure plate 2332 will come into contact with the toggle block 250. The slider component 230 continues to move to the right, and the toggle block 250 squeezes the elastic pressure plate 2332. The elastic pressure plate 2332 moves downward under the pressure, which causes the second limiting plate 2331 to move downward, so that the toggle block 250 enters the first groove 234. Then the elastic pressure plate 2332 is no longer squeezed by the toggle block 250, restores its elastic deformation, and drives the second limiting plate 2331 to return to its original state, thereby restoring the state in which the toggle block 250 and the slider 230 are locked together.

[0041] Further, please refer to Figure 4 In some preferred embodiments, the second limiting part 233 further includes a third limiting plate 2333 bent from the bottom of the second limiting plate 2331, and the second limiting plate 2331 and the third limiting plate 2333 form an "L" shape.

[0042] In practical applications, a bent third limiting plate 2333 is provided in the second limiting part 233, forming an "L" shape with the second limiting plate 2331. After the push block 250 presses the elastic pressure plate 2332 to restore the normal fit between the second limiting part 233 and the push block 250, the elastic pressure plate 2332 is released and returns to its original shape. However, there is a problem: during the process of restoring the original shape, the elastic pressure plate 2332 may deform in the opposite direction due to excessive pressure. This may cause the elastic pressure plate 2332 to drive the second limiting plate 2331 to move upward and collide with the push block 250, which may cause the second limiting plate 2331 to break. To avoid this problem, a third limiting plate 2333 can be provided to limit the upward movement of the second limiting plate 2331 and protect the normal service life of the second limiting part 233.

[0043] Further, please refer to Figure 4 In some specific embodiments, the slider component 230 is also provided with a snap-fit ​​groove 235, which is located below the second limiting plate 2331 and snaps into the third limiting plate 2333.

[0044] In practical applications, in order to better restrict the upward displacement of the second limit plate 2331 by the third limit plate 2333, a snap-fit ​​groove 235 can be opened on the slider component 230. The snap-fit ​​groove 235 is located below the second limit plate 2331, and the groove size in the horizontal direction is the same as the size of the second limit plate 2331, so that the lower end of the second limit plate 2331 can be inserted into the opening of the snap-fit ​​groove, and the bent third limit plate 2333 is placed in the snap-fit ​​groove 235 and abuts against the snap-fit ​​groove 235. Under normal circumstances, the third limiting plate 2333 abuts against the locking groove 235. When an abnormality occurs, the second limiting plate 2331 and the third limiting plate 2333 can be pressed downward by the elastic pressure plate 2332, and the elastic pressure plate 2332 is released. When the elastic pressure plate 2332 rebounds, the third limiting plate 2333 returns to the position where it abuts against the locking groove 235 under normal circumstances, thereby limiting the second limiting plate 2331 from continuing to move upward and preventing the second limiting plate 2331 from colliding with the toggle block 250.

[0045] Further, please refer to Figure 3 , Figure 4 , Figure 5 In some preferred embodiments, a vertically downward extension 236 is provided below the slider component 230 for connection with the spring assembly 240 provided below the buffer component 210.

[0046] In practical applications, to better achieve the buffering effect, a spring assembly 240 is usually connected to the slider component 230. Therefore, in conjunction with the location of the spring assembly 240, an extension 236 is provided below the slider component 230 for connection with the spring assembly 240. On the one hand, this makes the connection structure more stable. The extension 236 is set vertically downward, ensuring that when the slider component 230 rotates, the extension 236 can still pull the spring assembly 240 to stretch or contract in the translational direction of the buffer sliding door, thus assisting in achieving the buffering effect. On the other hand, the spring assembly 240 is connected to the downwardly extending extension 236. When the slider component 230 slides, it stretches the spring assembly 240. Correspondingly, the spring assembly 240 will always maintain a pulling force on the slider component 230 and generate a rotational torque on the slider component 230, causing the end of the slider component 230 to have a downward rotation tendency. Therefore, when the slider component 230 slides to the arc segment 223 position, it can rotate more smoothly along the arc segment 223 of the slide groove 221.

[0047] Further, please refer to Figure 5 In some preferred embodiments, the extension 236 has a second groove 2361 in the middle for fixing the spring assembly 240.

[0048] In practical applications, to make the extension 236 more stable in fixing to the spring assembly 240, a second groove 2361 can be opened in the middle of the extension 236. Correspondingly, recesses are set at the positions where the spring assembly 240 is fixed to the extension 236, so that the ends of the spring assembly 240 have a structure that is thick at both ends and thin in the middle, and the middle part is embedded in the second groove 2361 to ensure the stability of the fixation.

[0049] Further, please refer to Figure 3 , Figure 4 , Figure 5 In some preferred embodiments, the surface of the slider component 230 is provided with a plurality of weight-reducing grooves 237.

[0050] In practical applications, in order to reduce the weight of the slider component 230 and enable it to slide better on the slide groove 221, multiple weight-reducing grooves 237 can be opened on it. Discarding part of the weight-reducing grooves 237 can not only reduce the weight of the slider component 230, but also reduce the manufacturing cost of the slider component 230.

[0051] Please refer to Figure 1 , Figure 2 A buffer device 200 for a soft-close sliding door, the technical solution of which is as follows:

[0052] The buffer device of the soft sliding door includes a buffer frame 220 with a slide groove 221, a buffer component 210, and a slider component 230. The slider component 230 is connected to the buffer component 210 and is slidably disposed on the slide groove 221. The slide groove 221 includes a straight section 222 and an arc section 223. The slider component 230 slides and rotates in the straight section 222 and the arc section 223. A connecting part 231 is provided at the rotation center of the slider component 230 in the arc section 223. The connecting part 231 is hinged to the buffer component 210.

[0053] In practical applications, the buffer device 200 includes a buffer frame 220, a buffer component 210, and a slider component 230. By placing the slider component 230 within the groove 221 of the buffer frame 220 and connecting it to the buffer component 210, the buffer sliding door achieves a good buffering effect during operation, preventing the door from colliding with the door frame when it approaches the edge. The groove 221 includes a straight section 222 and an arc section 223, facilitating the sliding of the slider component 230 on the straight section 222 and rotating it upon reaching the arc section 223. This disengages the slider component 230 from the restraining block 250, allowing the buffer sliding door to move more smoothly. Furthermore, a connecting part 231 is provided at the center of rotation of the slider component 230 within the arc segment 223. The connecting part 231 is hinged to the buffer component 210, so that the slider component 230 does not apply pressure to the buffer component 210 during rotation, avoiding deformation of the buffer component 210 and helping the buffer component 210 maintain stability and extend its normal operating life. Therefore, with this buffer device 200, the buffer sliding door has the beneficial effects of structural stability and resistance to deformation.

[0054] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A slider component for a buffer sliding door, slidably disposed within a groove (221) of a buffer frame (220) and connected to a buffer component (210), the groove (221) comprising a straight segment (222) and an arc segment (223), the slider component (230) sliding and rotating within the straight segment (222) and the arc segment (223), characterized in that, The slider component (230) has a connecting part (231) at the rotation center of the arc segment (223), and the connecting part (231) is hinged to the buffer component (210).

2. The slider component of a buffer sliding door according to claim 1, characterized in that, The slider component (230) is provided with an upwardly protruding first limiting part (232) above it, and the slider component (230) is also provided with an upwardly protruding second limiting part (233). The second limiting part (233) is provided on one side of the first limiting part (232) and forms a first groove (234) between it and the first limiting part (232).

3. The slider component of a buffer sliding door according to claim 2, characterized in that, The first limiting part (232) is disposed above the connecting part (231).

4. The slider component of a buffer sliding door according to claim 2, characterized in that, The second limiting part (233) includes a second limiting plate (2331) and an elastic pressure plate (2332) that slopes downward from the top of the second limiting plate (2331).

5. The slider component of a buffer sliding door according to claim 4, characterized in that, The second limiting part (233) also includes a third limiting plate (2333) bent from the bottom of the second limiting plate (2331), and the second limiting plate (2331) and the third limiting plate (2333) form an "L" shape.

6. The slider component of a buffer sliding door according to claim 5, characterized in that, The slider component (230) is also provided with a snap-fit ​​groove (235), which is located below the second limiting plate (2331) and snaps into the third limiting plate (2333).

7. The slider component of a buffer sliding door according to claim 1, characterized in that, The slider component (230) has a vertically downward extension (236) below it, which is used to connect with the spring assembly (240) located below the buffer component (210).

8. The slider component of a buffer sliding door according to claim 7, characterized in that, The extension (236) has a second groove (2361) in the middle, which is used to fix the spring assembly (240).

9. The slider component of a buffer sliding door according to claim 1, characterized in that, The surface of the slider component (230) is provided with multiple weight-reducing grooves (237).

10. A buffer device for a sliding door, comprising a buffer frame (220) with a groove (221), a buffer component (210), and a slider component (230), wherein the slider component (230) is connected to the buffer component (210) and slidably disposed on the groove (221), the groove (221) comprising a straight segment (222) and an arc segment (223), and the slider component (230) sliding and rotating within the straight segment (222) and the arc segment (223), characterized in that, The slider component (230) has a connecting part (231) at the rotation center of the arc segment (223), and the connecting part (231) is hinged to the buffer component (210).

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