Buffer device with stable structure

Abstract

A buffering device with a stable structure comprises a fixed seat and a movable plate, the movable plate is arranged on the fixed seat in a sliding opening and closing mode, a buffer is arranged between the fixed seat and the movable plate and comprises a cylinder body and a piston rod arranged on the cylinder body in a telescopic mode, the cylinder body is fixed to the movable plate, the piston rod is connected with the fixed seat, and a connecting part is arranged at one end of the piston rod. An elastic buckle is arranged on the fixing base, the buffer is inserted into the fixing base in the first direction when installed, and when the buffer moves to the corresponding position in the first direction, the connecting part is clamped into the elastic buckle so as to connect the piston rod and the fixing base. According to the buffer device, the buffer is inserted into the fixing base through equipment in an inserting mode, then the connecting part is clamped into the elastic buckle, and therefore the buffer can be automatically installed through the equipment, the assembly efficiency of the buffer is improved, manual installation is not needed, and the labor cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of drawer technology, and in particular to a structurally stable buffer device. Background Technology

[0002] Chinese Patent Document No. CN211704039U, published on October 20, 2020, discloses a drawer slide buffer structure, including a mechanism fixing part and a mechanism sliding part. The mechanism fixing part has a fixing plate, and the fixing plate has a buffer device. The buffer device includes a movable plate, a buffer, a spring, and a locking pin. The buffer includes a cylinder and a steel pin. The cylinder is fixedly mounted on the movable plate, and the steel pin is fixedly mounted on the fixing plate. The locking pin has a first shaft and a second shaft, with a cap at the top of the second shaft. The mechanism sliding part has a hook with an arc-shaped slide rail. The end of the slide rail has a stop position, and the edge of the slide rail has a stepped position. The fixing plate has a slide groove, which includes a linear sliding area and a stopping area. In this buffer structure, the steel pin end has a locking nozzle, and the fixing plate has a locking groove. The locking nozzle engages with the locking groove to connect the steel pin to the fixing plate. However, this structure requires manual operation to engage the locking nozzle during buffer installation, making automated installation impossible, resulting in low assembly efficiency and high labor costs.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of this utility model is to provide a structurally stable buffer device that is simple in structure, reliable, efficient in assembly, low in labor cost, and highly practical, so as to overcome the shortcomings of the prior art.

[0005] A structurally stable buffer device designed for this purpose includes a fixed base and a movable plate. The movable plate is slidably opened and closed on the fixed base. A buffer is provided between the fixed base and the movable plate. The buffer includes a cylinder and a piston rod telescopically mounted on the cylinder. The cylinder is fixed on the movable plate, and the piston rod is connected to the fixed base. The characteristic feature is that a connecting part is provided at one end of the piston rod, and an elastic buckle is provided on the fixed base. When the buffer is installed, it is inserted into the fixed base in a first direction, and when the buffer moves to the corresponding position in the first direction, the connecting part is engaged in the elastic buckle to connect the piston rod and the fixed base.

[0006] The elastic buckle includes two symmetrically arranged fastening parts, and the connecting part includes a connecting post and a mounting head. When the buffer moves to the corresponding position in the first direction, the mounting head acts on the two fastening parts to make the two fastening parts elastically open outwards respectively. Then the mounting head passes over the fastening parts. After the mounting head passes over the fastening parts, the two fastening parts elastically reset inwards respectively, so that the connecting post is locked between the two fastening parts.

[0007] The two fastening parts are arranged in a figure-eight shape; when the buffer moves to the corresponding position in the first direction, the mounting head passes through the open end of the figure-eight shape and acts on the two fastening parts.

[0008] The fixed base is provided with a limiting part. After the mounting head passes over the fastening part, it is inserted into the limiting part and acts on the limiting part.

[0009] It also includes an elastic element. The two sides of the fixed base are respectively provided with mounting parts extending outward. The elastic element is installed on the mounting part. One end of the elastic element is connected to the movable plate, and the other end of the elastic element is connected to the fixed base.

[0010] The movable plate is provided with a first locking block, the mounting part is provided with a second locking block, one end of the elastic element is provided with a first locking part, the other end of the elastic element is provided with a second locking part, the first locking part is locked on the first locking block, and the second locking part is locked on the second locking block.

[0011] The fixed base has guide grooves on both sides, and the movable plate has guide edges on both sides. When the movable plate slides open and closes on the fixed base, the guide edges slide on the guide grooves.

[0012] The fixed base has extensions on both sides. The outer side of the extension is connected to the mounting part, and the inner side of the mounting part is provided with guide ribs. A guide groove is formed between the extension and the guide ribs.

[0013] The movable plate is equipped with limit buckles, and the fixed seat is equipped with limit ribs at both ends. When the movable plate slides open and closes relative to the fixed seat to the maximum position, the limit buckles and limit ribs cooperate to limit the upper and lower positions, so as to achieve the upper and lower positioning between the fixed seat and the movable plate.

[0014] The movable plate is provided with an installation slot, and the inner circumference of the installation slot is provided with a buckle. The cylinder body is snapped onto the installation slot by the buckle. The fixed seat is provided with a clearance groove, and the buffer extends at least partially into the clearance groove.

[0015] The buffer device of this utility model has a connecting part at one end of the piston rod and an elastic buckle on the fixed seat. When the buffer is installed, it is inserted into the fixed seat in a first direction, and when the buffer moves to the corresponding position in the first direction, the connecting part is engaged in the elastic buckle to connect the piston rod and the fixed seat. The buffer of this structure uses a plug-in method. The buffer can be inserted into the fixed seat by equipment, and then the connecting part is engaged in the elastic buckle. Therefore, the buffer can be automatically installed by equipment, which improves the assembly efficiency of the buffer and eliminates the need for manual installation, thus reducing labor costs. Attached Figure Description

[0016] Figure 1 This is an exploded view of the slide rail and buffer device in one embodiment of the present invention.

[0017] Figure 2This is a schematic diagram of the assembly structure of the fixed base and the buffer in one embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the overall structure of the fixing base in one embodiment of the present invention.

[0019] Figure 4 for Figure 3 A magnified structural diagram at point B in the middle.

[0020] Figure 5 This is a schematic diagram of the overall structure of the buffer in one embodiment of the present invention.

[0021] Figure 6 This is an exploded view of the buffer device in one embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the overall structure of the movable plate in one embodiment of the present invention.

[0023] Figure 8 This is a schematic diagram of the overall structure of the fixing seat from another position in one embodiment of the present invention.

[0024] Figure 9 This is a schematic diagram of the overall structure of the buffer device in one embodiment of the present invention.

[0025] Figure 10 This is a cross-sectional view of the buffer device in one embodiment of the present invention.

[0026] Figure 11 for Figure 10 A magnified structural diagram at point C. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] See Figures 1-11 This stable buffer device includes a fixed base 1 and a movable plate 2. The movable plate 2 is slidably opened and closed on the fixed base 1. A buffer 3 is provided between the fixed base 1 and the movable plate 2. The buffer 3 includes a cylinder 4 and a piston rod 5 telescopically mounted on the cylinder 4. When the movable plate 2 slides open and closes on the fixed base 1, it drives the cylinder 4 to move, so that the piston rod 5 is telescopically mounted on the cylinder 4. The cylinder 4 is fixed on the movable plate 2. The piston rod 5 is connected to the fixed base 1. One end of the piston rod 5 is provided with a connecting part 6. The fixed base 1 is provided with an elastic buckle 7. When the buffer 3 is installed, it is inserted into the fixed base 1 in the first direction A. When the buffer 3 moves to the corresponding position in the first direction A, the connecting part 6 is engaged in the elastic buckle 7 to connect the piston rod 5 and the fixed base 1. When the buffer 3 is installed, it is inserted into the fixed base 1 by means of equipment.

[0029] The elastic buckle 7 includes two symmetrically arranged fastening parts 8, and the connecting part 6 includes a connecting post 9 and a mounting head 10. When the buffer 3 moves to the corresponding position in the first direction A, the mounting head 10 acts on the two fastening parts 8, so that the two fastening parts 8 elastically open outwards respectively, and then the mounting head 10 passes over the fastening parts 8. After the mounting head 10 passes over the fastening parts 8, the two fastening parts 8 elastically reset inwards respectively, so that the connecting post 9 is locked between the two fastening parts 8, and then the connecting part 6 is locked into the elastic buckle 7. The diameter of the mounting head 10 is larger than the diameter of the connecting post 9.

[0030] The two fastening parts 8 are arranged in a figure-eight shape; when the buffer 3 moves to the corresponding position in the first direction A, the mounting head 10 passes through the opening end 11 of the figure-eight shape and acts on the two fastening parts 8, that is, the mounting head 10 squeezes the two fastening parts 8.

[0031] The fixed base 1 is provided with a limiting part 12. After the mounting head 10 passes over the fastening part 8, it is inserted into the limiting part 12 and acts on the limiting part 12. The limiting part 12 can prevent the buffer 3 from moving excessively in the first direction A, ensure that the connecting post 9 is locked between the two fastening parts 8, and ensure the stability of the buffer 3 when it is working.

[0032] It also includes an elastic element 25, which is a spring. The fixed base 1 has mounting parts 13 extending outward from both sides. The elastic element 25 is mounted on the mounting parts 13. One end of the elastic element 25 is connected to the movable plate 2, and the other end of the elastic element 25 is connected to the fixed base 1. When the movable plate 2 slides closed relative to the fixed base 1, it compresses the elastic element 25. When the elastic element 25 elastically resets, it drives the movable plate 2 to slide open relative to the fixed base 1. In addition, the mounting part 13 can improve the structural strength of the fixed base 1, so that the fixed base 1 is not easily deformed during operation.

[0033] The movable plate 2 is provided with a first locking block 14, the mounting part 13 is provided with a second locking block 15, one end of the elastic member 25 is provided with a first locking part 26, and the other end of the elastic member 25 is provided with a second locking part 16. The first locking part 26 is locked on the first locking block 14, and the second locking part 16 is locked on the second locking block 15. The first locking block 14 is provided with a first locking groove 27, and the first locking part 26 is locked in the first locking groove 27. The second locking block 15 is provided with a second locking groove 28, and the second locking part 16 is locked in the second locking groove 28.

[0034] Guide grooves 17 are provided on both sides of the fixed base 1, and guide edges 18 are provided on both sides of the movable plate 2. When the movable plate 2 slides open and closes on the fixed base 1, the guide edges 18 slide on the guide grooves 17, thereby guiding the movement of the movable plate 2.

[0035] The fixed base 1 has extensions 19 on both sides. The outer side of the extensions 19 is connected to the mounting part 13. The inner side of the mounting part 13 is provided with guide ribs 20. A guide groove 17 is formed between the extensions 19 and the guide ribs 20. The extensions 19 also improve the structural strength of the fixed base 1.

[0036] The movable plate 2 is provided with a limit buckle 21, and the fixed seat 1 is provided with limit ribs 22 at both ends. When the movable plate 2 slides open and closes relative to the fixed seat 1 to the maximum position, the limit buckle 21 and the limit rib 22 cooperate to limit the upper and lower positions, so as to realize the upper and lower positioning between the fixed seat 1 and the movable plate 2. When the movable plate 2 slides open and closes relative to the fixed seat 1 to the maximum position, the buffer 3 may tilt upward under force, which will drive the movable plate 2 to tilt upward. By the upper and lower limit cooperation of the limit buckle 21 and the limit rib 22, the buffer 3 and the movable plate 2 can be prevented from tilting upward.

[0037] The movable plate 2 is provided with an installation groove 23, and a buckle 24 is provided on the inner circumference of the installation groove 23. The cylinder 4 is snapped onto the installation groove 23 by the buckle 24, thereby fixing the cylinder 4 onto the movable plate 2. The fixed seat 1 is provided with a clearance groove 34, and the buffer 3 extends at least partially into the clearance groove 34.

[0038] The fixed base 1 is connected to the fixed slide rail 29, and the movable plate 2 is connected to the movable slide rail 30. A push block 31 is provided on the movable slide rail 30, and a locking pin 33 is rotatably provided on the movable plate 2. The fixed base 1 is provided with a sliding groove 32. When the movable slide rail 30 is closed relative to the fixed slide rail 29, the push block 31 pushes the locking pin 33 so that the locking pin 33 slides on the sliding groove 32, and the locking pin 33 drives the movable plate 2 to slide closed relative to the fixed base 1. When the elastic element 25 elastically resets, it drives the movable plate 2 to slide open relative to the fixed base 1, and the locking pin 33 slides on the sliding groove 32. The locking pin 33 pushes the push block 31 so that the movable slide rail 30 opens relative to the fixed slide rail 29. The above structure is prior art and will not be described in detail here.

[0039] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A structurally stable buffer device, comprising a fixed base (1) and a movable plate (2), the movable plate (2) being slidably opened and closed on the fixed base (1), a buffer (3) being disposed between the fixed base (1) and the movable plate (2), the buffer (3) comprising a cylinder (4) and a piston rod (5) telescopically disposed on the cylinder (4), the cylinder (4) being fixed on the movable plate (2), and the piston rod (5) being connected to the fixed base (1), characterized in that: A connecting part (6) is provided at one end of the piston rod (5), and an elastic buckle (7) is provided on the fixed seat (1). When the buffer (3) is installed, it is inserted into the fixed seat (1) in the first direction (A), and when the buffer (3) moves to the corresponding position in the first direction (A), the connecting part (6) is engaged in the elastic buckle (7) to connect the piston rod (5) and the fixed seat (1).

2. The structurally stable buffer device according to claim 1, characterized in that: The elastic buckle (7) includes two symmetrically arranged fastening parts (8), and the connecting part (6) includes a connecting post (9) and a mounting head (10). When the buffer (3) moves to the corresponding position in the first direction (A), the mounting head (10) acts on the two fastening parts (8) to make the two fastening parts (8) elastically open outwards respectively, and then the mounting head (10) passes over the fastening parts (8). After the mounting head (10) passes over the fastening parts (8), the two fastening parts (8) elastically reset inwards respectively, so that the connecting post (9) is locked between the two fastening parts (8).

3. The structurally stable buffer device according to claim 2, characterized in that: The two fastening parts (8) are arranged in a figure-eight shape; when the buffer (3) moves to the corresponding position in the first direction (A), the mounting head (10) passes through the open end (11) of the figure-eight shape and acts on the two fastening parts (8).

4. The structurally stable buffer device according to claim 2, characterized in that: A limiting part (12) is provided on the fixing base (1). The mounting head (10) passes over the fastening part (8) and is inserted into the limiting part (12) and acts on the limiting part (12).

5. The structurally stable buffer device according to claim 1, characterized in that: It also includes an elastic element (25), and mounting parts (13) are provided on both sides of the fixed base (1). The elastic element (25) is mounted on the mounting part (13). One end of the elastic element (25) is connected to the movable plate (2), and the other end of the elastic element (25) is connected to the fixed base (1).

6. The structurally stable buffer device according to claim 5, characterized in that: The movable plate (2) is provided with a first locking block (14), the mounting part (13) is provided with a second locking block (15), one end of the elastic member (25) is provided with a first locking part (26), the other end of the elastic member (25) is provided with a second locking part (16), the first locking part (26) is locked on the first locking block (14), and the second locking part (16) is locked on the second locking block (15).

7. The structurally stable buffer device according to claim 1, characterized in that: Guide grooves (17) are provided on both sides of the fixed base (1), and guide edges (18) are provided on both sides of the movable plate (2). When the movable plate (2) slides open and closes on the fixed base (1), the guide edges (18) slide on the guide grooves (17).

8. The structurally stable buffer device according to claim 7, characterized in that: The fixed base (1) has extensions (19) on both sides, the outer side of the extensions (19) is connected to the mounting part (13), the inner side of the mounting part (13) is provided with guide ribs (20), and a guide groove (17) is formed between the extensions (19) and the guide ribs (20).

9. The structurally stable buffer device according to claim 1, characterized in that: The movable plate (2) is provided with a limit buckle (21), and the fixed seat (1) is provided with limit ribs (22) at both ends respectively. When the movable plate (2) slides open and closes relative to the fixed seat (1) to the maximum position, the limit buckle (21) and the limit rib (22) cooperate to limit the upper and lower positions so as to realize the upper and lower positioning between the fixed seat (1) and the movable plate (2).

10. The structurally stable buffer device according to claim 1, characterized in that: The movable plate (2) is provided with an installation groove (23), and a buckle (24) is provided on the inner circumference of the installation groove (23). The cylinder (4) is snapped onto the installation groove (23) by the buckle (24). The fixed seat (1) is provided with a clearance groove (34), and the buffer (3) extends at least partially into the clearance groove (34).

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