Drawer guide rail buffer with adjustable buffer stroke

Abstract

A drawer guide rail buffer with an adjustable buffer stroke comprises a main body, a guide groove is formed in the main body, a sliding block is installed in the guide groove, a damper and a reset tension spring are arranged between the sliding block and the main body, a guide rail is further arranged in the guide groove, a hanging block is installed on the sliding block in a hinged mode, and the hanging block slides on the guide rail in a clamped mode. When the hanging block moves to the tail end of the guide rail, the hanging block deflects due to the fact that the hanging block loses guiding of the guide rail, the hanging block is unhooked from the drawer sliding rail, the main body is further provided with a guide hole penetrating through the guide groove, a compensation block is installed in the guide hole in a sliding mode, an extension rail is arranged on the compensation block, and the compensation block is driven by an adjusting mechanism to move. Butt joint or separation of the extension rail and the guide rail is achieved so that the movement stroke of the hanging block can be adjusted. The utility model has the beneficial effects that the buffer stroke can be adjusted according to requirements through the combined design of the guide hole, the compensation block and the extension rail.

Description

Technical Field

[0001] The utility model relates to a hardware guide rail accessory, in particular to a drawer guide rail buffer with adjustable buffering stroke. Background Art

[0002] Drawer rail bumpers have become an indispensable component in modern home and office furniture. They effectively mitigate the impact of drawer closing, improving the user experience and preventing noise or damage when closing. However, existing drawer rail bumpers generally have some significant shortcomings that limit their flexibility and versatility in practical applications.

[0003] 1. Existing guide rail buffers are mostly designed with a fixed stroke, meaning their sliding travel cannot be adjusted according to actual needs. This fixed-stroke design may be inflexible in some specific drawer application scenarios. For example, when the guide rail length changes, existing buffers cannot provide corresponding stroke adjustment. This limitation directly results in the buffer being compatible with only specific guide rail specifications, making it impossible to adapt a single product to multiple specifications.

[0004] 2. Because existing guide rail buffers have non-adjustable travel, manufacturers often need to produce and install multiple models of buffers, tailored to the length of the guide rails. This model not only increases production costs but also makes the buffers less versatile, making them difficult to flexibly use with different guide rail or drawer systems. Furthermore, inventory management is complicated and costly due to the need to match specific buffer models to different guide rail specifications.

[0005] 3. The existing fixed-stroke buffer design imposes a significant cost burden on companies' production. Since a universal buffer cannot be adapted to guide rails of varying lengths, companies are forced to design and manufacture buffers of varying specifications for different guide rail models. This multi-specification, multi-model production model not only requires increased mold costs and manufacturing resources, but also complicates the production process. Furthermore, the fixed-stroke design also makes companies lack flexibility when it comes to customized or small-batch production needs, further driving up overall production costs.

[0006] 4. With increasing market demand for furniture comfort, durability, and personalization, users and businesses are placing increasingly high demands on drawer buffers. However, existing technologies, with their fixed, non-adjustable travel, struggle to meet the diverse needs of different users for guide rail length and drawer travel. This limitation severely restricts the product's market adoption and prevents it from providing users with personalized, high-quality solutions. Therefore, further improvements are necessary. Utility Model Content

[0007] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a drawer guide rail buffer with adjustable buffer stroke, which is simple in structure, easy to use and highly versatile.

[0008] The purpose of the utility model is to realize a drawer guide rail buffer with adjustable buffer stroke in the following manner, which includes a main body, a guide groove is provided on the main body, a slider is installed in the guide groove, a damper and a reset spring are provided between the slider and the main body, the reset spring generates tension to always pull the slider in the closing direction, a guide rail is also provided in the guide groove, a hanging block is hingedly installed on the slider, the hanging block is clamped on the guide rail and slides, when the hanging block runs to the end of the guide rail, it loses the guidance of the guide rail and deflects, so that the hanging block is unhooked from the drawer slide rail, a guide hole passing through the guide groove is also provided on the main body, a compensation block is slidably installed in the guide hole, an extension rail is provided on the compensation block, the compensation block moves under the drive of the adjustment mechanism to achieve docking or separation of the extension rail and the guide rail to adjust the movement stroke of the hanging block.

[0009] Furthermore: a first docking bevel is provided at the end of the guide rail, and correspondingly, a second docking bevel is provided on the side where the extension rail docks with the guide rail.

[0010] Furthermore: a plurality of guide blocks are provided on the upper and lower end surfaces of the compensation block, and correspondingly, corresponding guide grooves are provided on the side walls of the guide hole, and the guide blocks slide in the guide grooves.

[0011] Furthermore: the adjustment mechanism is a driving rod hingedly installed in the main body, one end of the driving rod is provided with a linkage block inserted into the linkage hole on the compensation block, and the other end of the driving rod is installed with a spring to press on the main body. The spring generates thrust through the driving rod to push the compensation block to always move in the direction of the guide groove.

[0012] Furthermore: the upper and lower ends of the driving rod are extended outward with hinge shafts, and correspondingly, the main body is provided with a hinge hole, and the hinge shaft is rotatably installed in the hinge hole.

[0013] The beneficial effects of the utility model are: 1. Simple structure, low production cost and improved market competitiveness.

[0014] 2. The present invention utilizes a combination of guide holes, compensation blocks, and extension rails to adjust the buffer stroke as needed. Specifically, the extension rails connect or disconnect with the guide rails via an adjustment mechanism, thereby adjusting the travel of the suspension block. This design allows the same buffer to adapt to guide rails of varying lengths, greatly enhancing its flexibility and overcoming the limitations of existing technologies, which have fixed, unadjustable travel.

[0015] 3. Because the buffer stroke of this utility model is adjustable, companies can produce a universal buffer, eliminating the need to produce multiple models for different guide rail lengths. This universal design not only reduces mold and manufacturing costs, but also improves product adaptability, meeting the needs of using guide rails of different lengths and drawer systems, and enhancing the versatility of the accessory.

[0016] 4. By using a universal buffer design, the present invention eliminates the need for customized buffers for different rail lengths. This not only reduces mold development and material costs during production, but also simplifies the production process, reduces inventory management complexity, and ultimately reduces overall production costs.

[0017] 5. The utility model features a simple structural design, with a sliding compensation block and an adjustment mechanism driven by an articulated mechanism. Operation is simple, reliable, and easy to install and debug. Furthermore, the sliding and articulated connections between components make the product easy to maintain during use, reducing the risk of failure during daily use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 、 2 This is the structural assembly effect diagram of the utility model.

[0019] Figure 3 This is the effect diagram after the extension rail and the guide rail in the utility model are connected.

[0020] Figure 4 This is a structural exploded view of the utility model.

[0021] Figure 5 This is the assembly diagram of the compensation block and the drive rod in the utility model.

[0022] Figure 6 This is a diagram showing the installation effect of the structure of the utility model and the drawer slider. DETAILED DESCRIPTION

[0023] The present invention is further described below in detail with reference to the accompanying drawings. A drawer guide rail buffer with adjustable buffer stroke comprises a main body 1, a guide groove 2 is provided on the main body 1, a slider 3 is installed in the guide groove 2, a damper 4 and a return spring 5 are provided between the slider 3 and the main body 1, the return spring 5 generates tension to always pull the slider 3 in the closing direction, a guide rail 6 is also provided in the guide groove 2, a hanging block 7 is hingedly installed on the slider 3, the hanging block 7 is clamped on the guide rail 6 and slides, when the hanging block 7 runs to the end of the guide rail 6, it loses the guidance of the guide rail 6 and deflects, causing the hanging block 7 to decouple from the drawer slide rail, the main body 1 is also provided with a guide hole 8 passing through the guide groove 2, a compensation block 9 is slidably installed in the guide hole 8, and an extension rail 10 is provided on the compensation block 9. The compensation block 9 moves under the drive of the adjustment mechanism to achieve docking or separation of the extension rail 10 with the guide rail 6 to adjust the movement stroke of the hanging block 7.

[0024] In one embodiment, a first docking bevel 61 is provided at the end of the guide rail 6 , and correspondingly, a second docking bevel 11 is provided at the side of the extension rail 10 docking with the guide rail 6 .

[0025] In one embodiment, a plurality of guide blocks 91 are provided on the upper and lower end surfaces of the compensation block 9 , and correspondingly, corresponding guide grooves 81 are provided on the side walls of the guide hole 8 , and the guide blocks 91 slide in the guide grooves 81 .

[0026] In one embodiment, the adjustment mechanism is a drive rod 12 hingedly installed in the main body 1, and a linkage block 13 is provided at one end of the drive rod 12 to be inserted into the linkage hole 92 on the compensation block 9. A spring 14 is installed at the other end of the drive rod 12 to press on the main body 1. The spring 14 generates a thrust through the drive rod 12 to push the compensation block 9 to always move in the direction of the guide groove 81.

[0027] In one embodiment, hinge shafts 15 extend outward from the upper and lower ends of the driving rod 12 , and correspondingly, a hinge hole 16 is provided on the main body 1 , and the hinge shaft 15 is rotatably installed in the hinge hole 16 .

[0028] Working principle: The buffer of the present utility model is mainly composed of a main body 1, a guide groove 2, a slider 3, a damper 4, a reset spring 5, a guide rail 6, a hanging block 7, a guide hole 8, a compensation block 9, an extension rail 10 and an adjustment mechanism.

[0029] The main body 1 is provided with a through guide groove 2, in which a slider 3 is installed. The slider 3 is connected to the main body 1 through a damper 4 and a reset spring 5. The reset spring 5 always generates tension to pull the slider 3 in the closing direction to ensure that the slider can be reset.

[0030] Guide rail 6 is mounted within guide groove 2. Slider 3 is hingedly connected to a hanging block 7, which slides by clamping onto guide rail 6. When hanging block 7 reaches the end of guide rail 6, it loses its guiding force and deflects, disengaging from the drawer slide, allowing the slide to fully open. When the slide closes, the hanging pin on the slide impacts with the hanging block, causing it to deflect and reenter the slide. The hanging block, acting under the action of the return spring's damper, pulls the slide slowly back into its original position.

[0031] Among them: the core innovation of the utility model is that the movement stroke of the hanging block 7 can be adjusted, and this function is achieved through the design of the compensation block 9 and the extension rail 10.

[0032] Among them, the guide hole 8 runs through the main body 1 and the guide groove 2, and the compensation block 9 is slidably installed in the guide hole 8. The compensation block 9 is provided with an extension rail 10, which can be connected or separated with the guide rail 6 by the drive of the adjustment mechanism.

[0033] When the extension rail 10 is docked with the guide rail 6, it effectively extends the length of the guide rail 6, increasing the sliding stroke of the hanging block 7. When the extension rail 10 is separated from the guide rail, the sliding stroke is shortened. Therefore, by adjusting the docking state of the extension rail and the guide rail, the length of the buffer stroke can be flexibly controlled to meet the needs of different guide rail applications.

[0034] like Figure 5 As shown, the drive rod 12 is hingedly mounted within the main body 1, with one end connected to a linkage block 13. The linkage block is inserted into the linkage hole 92 on the compensation block 9. The movement of the drive rod drives the compensation block 9 to slide within the guide hole 8, thereby adjusting the position of the extension rail 10. A spring 14 is mounted on the other end of the drive rod, providing thrust, which, through the drive rod, causes the compensation block to always move in the docking direction, allowing the extension rail to dock with the guide rail, extending the buffer stroke, and ensuring that the buffer stroke can be maintained stably after adjustment.

[0035] like Figure 5 As shown, when the buffer is used on a shorter slide rail, a pressing protrusion 18 is provided on the slide rail 17 at a position corresponding to the driving rod. When the buffer is assembled with the slide rail, the pressing protrusion squeezes the spring end of the driving rod, causing the driving rod to deflect and the compensation block to retract, forcing the extension rail to separate from the guide rail. As a result, the length of the guide rail becomes shorter, shortening the movement stroke of the hanging block to adjust the buffer stroke.

[0036] Therefore, compared with conventional technology, the present invention, through the design of the compensation block 9 and the extension rail 10, can flexibly adjust the buffer stroke according to different guide rail lengths, overcoming the limitation of the fixed stroke in the prior art. Regardless of the change in guide rail length, the present invention can adapt to different needs through simple adjustment, greatly improving the versatility and adaptability of the product.

[0037] The utility model can adapt to various guide rail systems by adjusting the buffer stroke design, eliminating the need to design multiple buffer models for guide rails of different lengths. This design improves the versatility of the buffer accessories, reduces manufacturing costs, and simplifies inventory management.

[0038] Furthermore, because the utility model can adapt to guide rails of varying lengths, companies can use the same model of buffer during production, eliminating the need to produce different models for different guide rail lengths. This universal design significantly reduces mold and material costs, simplifies the production process, improves production efficiency, and ultimately reduces overall production costs.

[0039] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. A drawer guide rail buffer with adjustable buffer stroke, comprising a main body (1), a guide groove (2) provided on the main body (1), a slider (3) installed in the guide groove (2), a damper (4) and a reset spring (5) provided between the slider (3) and the main body (1), the reset spring (5) generating a tensile force to always pull the slider (3) in the closing direction, a guide rail (6) further provided in the guide groove (2), a hanging block (7) hingedly installed on the slider (3), the hanging block (7) being clamped on the guide rail (6) and sliding, and when the hanging block (7) runs to the end of the guide rail (6), it loses the guidance of the guide rail (6) and deflects, causing the hanging block (7) to be decoupled from the drawer slide rail, characterized in that: The main body (1) is further provided with a guide hole (8) penetrating the guide groove (2), a compensation block (9) is slidably installed in the guide hole (8), and an extension rail (10) is provided on the compensation block (9). The compensation block (9) moves under the drive of the adjustment mechanism to achieve docking or separation of the extension rail (10) and the guide rail (6) to adjust the movement stroke of the hanging block (7).

2. The drawer guide rail buffer with adjustable buffer stroke according to claim 1, characterized in that: The end of the guide rail (6) is provided with a first docking bevel (61), and correspondingly, a second docking bevel (11) is provided on the side where the extension rail (10) docks with the guide rail (6).

3. The drawer guide rail buffer with adjustable buffer stroke according to claim 1, characterized in that: A plurality of guide blocks (91) are provided on the upper and lower end surfaces of the compensation block (9), and correspondingly, a corresponding guide groove (81) is provided on the side wall of the guide hole (8), and the guide blocks (91) are located in the guide groove (81) and slide.

4. The drawer guide rail buffer with adjustable buffer stroke according to claim 1, characterized in that: The adjustment mechanism is a driving rod (12) hingedly mounted in the main body (1). One end of the driving rod (12) is provided with a linkage block (13) inserted into a linkage hole (92) on the compensation block (9). The other end of the driving rod (12) is provided with a spring (14) pressed against the main body (1). The spring (14) generates a thrust through the driving rod (12) to push the compensation block (9) to always move in the direction of the guide groove (81).

5. The drawer guide rail buffer with adjustable buffer stroke according to claim 4, characterized in that: The driving rod (12) has hinge shafts (15) extending outward from the upper and lower ends. Correspondingly, a hinge hole (16) is provided on the main body (1), and the hinge shaft (15) is rotatably installed in the hinge hole (16).

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