CN210185025U

CN210185025U - Buffer three-section rail

Info

Publication number: CN210185025U
Application number: CN201920526823.6U
Authority: CN
Inventors: Deping Kong; 孔德平
Original assignee: Foshan Pan Ju Precision Hardware Technology Co Ltd
Current assignee: Foshan Pan Ju Precision Hardware Technology Co Ltd
Priority date: 2019-04-18
Filing date: 2019-04-18
Publication date: 2020-03-27
Anticipated expiration: 2029-04-18

Abstract

The utility model discloses a buffering three-section rail, which comprises a buffering component, an outer rail, a middle rail and an inner rail which are sequentially and movably connected through a steel ball assembly, wherein the steel ball assembly comprises a steel ball frame and a steel ball strip, the steel ball frame is arranged between the inner rail and the middle rail, and the steel ball strip is arranged between the two sides of the middle rail and the outer rail; the buffer assembly is arranged on the outer rail and comprises a fixed part and a sliding part, the fixed part is provided with a sliding rod connected with the sliding part, the sliding rod is provided with a sliding chute, the sliding part is provided with a sliding block, the sliding block also comprises a guide block, the guide block comprises a connecting column and a guide column which are connected, the connecting column is inserted in the sliding block, and the sliding block can rotate relative to the sliding block; the buffer assembly further comprises a hydraulic cylinder, the hydraulic cylinder is mounted on the fixing portion, the piston of the hydraulic cylinder is mounted on the sliding portion, and a spring is arranged between the fixing portion and the sliding portion for connection. The utility model discloses simple structure is compact, and loading and unloading are convenient, make the drawer improve user's use and experience at the back stage noise elimination buffering of withdrawing, improve the life of furniture simultaneously.

Description

Buffer three-section rail

Technical Field

The utility model belongs to the slide rail field, in particular to buffering three section rail.

Background

Modern furniture generally includes a drawer that is easily stored, and the drawer is pulled out of or pushed into the storage portion by a slide rail installed between the drawer and the storage portion. When a user pushes back the drawer, the drawer is easy to collide due to insufficient mastery force, so that collision noise is generated, and meanwhile, the service life of the drawer and even furniture is shortened due to collision damage.

SUMMERY OF THE UTILITY MODEL

The utility model provides a buffering three section rail, through setting up the buffering subassembly, effort when buffering the drawer and push back makes it slowly withdraw, avoids the collision, reaches the purpose of noise elimination and the life who improves furniture.

In order to solve the technical problem, the utility model provides a buffering three-section rail, which comprises a buffering component, an outer rail, a middle rail and an inner rail which are sequentially and movably connected through a steel ball assembly, wherein the steel ball assembly comprises a steel ball frame and a steel ball strip, the steel ball frame is arranged between the inner rail and the middle rail, and the steel ball strip is arranged between the two sides of the middle rail and the outer rail;

the buffer assembly is arranged on the outer rail and comprises a fixed part and a sliding part, the fixed part is arranged on the outer rail and is provided with a sliding rod movably connected with the sliding part, the sliding rod is provided with a sliding chute, the sliding part is provided with a matched sliding block, the sliding block also comprises a guide block, the guide block comprises a connecting column and a guide column which are connected through a connecting rod, and the guide block is inserted into the sliding block through the connecting column and is arranged on the sliding block and can rotate relative to the sliding block;

the buffer assembly further comprises a hydraulic cylinder, the hydraulic cylinder is mounted on the fixing portion, the piston of the hydraulic cylinder is mounted on the sliding portion, and a spring is arranged between the fixing portion and the sliding portion for connection.

The buffer component enables the sliding rail to better adapt to different thrusts of a user, and the hydraulic cylinder reduces the impact force of the drawer at the later stage of pushing back the drawer, slows down the speed and completes the final closing movement softly.

Furthermore, a first arc-shaped groove is formed in one end, far away from the fixing portion, of the sliding groove, a second arc-shaped groove is formed in one end, close to the fixing portion, of the inner rail and opposite to the middle rail, and the second arc-shaped groove and the first arc-shaped groove are horizontally symmetrical in turning direction. Because second arc wall and first arc wall turn to horizontal symmetry, from this, when the inner rail withdrawed to second arc wall contact guide post, the second arc wall promoted the guide post and slided into the spout from first arc wall, and then the guide post is caught to the second arc wall, and the guide post can drive the inner rail and continue to slide and withdraw.

Furthermore, the inner rail is provided with an elastic part, the elastic part comprises a poking arm and an elastic arm which are integrally formed, the poking arm is connected with one end of the elastic arm, the other end of the poking arm is gradually far away from the elastic arm, the elastic arm is provided with a convex part, and one edge of the convex part is gradually inclined towards the other opposite edge along the sliding direction A.

Furthermore, the middle rail is provided with a limiting part, the limiting part is installed on the middle rail through an installation clamping piece, the limiting part is provided with a blocking part, the blocking part is matched with the convex part, and one edge of the blocking part gradually inclines to the opposite edge along the reverse direction of the sliding direction A.

Therefore, when the inner rail is disassembled, the poking arm is pressed to one side of the elastic arm, the elastic arm is stressed and bent, the convex part is separated from the resisting part, and the inner rail can be disassembled easily and quickly; during installation, due to the special design of the blocking portion and the convex portion, the inner rail can be directly pushed into the middle rail, after the elastic piece passes through the limiting piece, the inner rail cannot be separated from the middle rail due to the blocking effect of the blocking portion and the convex portion, and therefore installation of the inner rail is rapidly completed.

The utility model discloses simple structure is compact, and loading and unloading are convenient, make the drawer improve user's use and experience at the back stage noise elimination buffering of withdrawing, improve the life of furniture simultaneously.

Drawings

FIG. 1 is a schematic structural view of the buffering three-section rail of the present invention;

FIG. 2 is a schematic structural diagram of another view of the buffer three-track of FIG. 1;

FIG. 3 is an enlarged view of the buffer three-track at B of FIG. 1;

fig. 4 is an enlarged view of the buffer three-track at C in fig. 1.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1-4, the utility model discloses buffering three section rail, including buffering subassembly 100 and outer rail 300, well rail 400 and the interior rail 500 through steel ball assembly swing joint in proper order, the steel ball assembly includes steel ball frame 210 and steel ball strip 220, and wherein steel ball frame 210 installs between interior rail 500 and well rail 400, and steel ball strip 220 installs between well rail 400 and outer rail 300 both sides. The buffer assembly 100 is mounted on the outer rail 300, and includes a fixed portion 110 and a sliding portion 120, the fixed portion 110 is mounted on the outer rail 300, and is provided with a sliding rod 130 movably connected to the sliding portion 120, and two sides of the sliding rod 130 are provided with springs 140 for connection, and two ends of the two springs 140 are respectively hung on the fixed portion 110 and the sliding portion 120. The damping unit 100 further includes a hydraulic cylinder 150, the hydraulic cylinder 150 vertically corresponds to the slide bar 130 and is mounted to the fixed portion 110, and a piston thereof is mounted to the sliding portion 120.

The sliding rod 130 is provided with a sliding slot 131, one end of the sliding slot 131 far away from the fixing portion 110 is provided with a first arc-shaped groove 132, one end of the inner rail 500 near the fixing portion 110 and the surface opposite to the middle rail 400 are provided with a second arc-shaped groove 510, and the second arc-shaped groove 510 and the first arc-shaped groove 132 are horizontally symmetrical. The slide portion 120 is provided with a slider 121, the slider 121 being slidable on the slide groove 131, one end surface of the slider 121 being connected to the slide portion 120, and the other end surface parallel to the one end surface being spaced apart from the slide portion 120. The slider 121 further comprises a guide block, the guide block comprises a connecting column 124 and a guide column 125 which are connected through a connecting rod 123, the guide block is inserted into the slider 121 through the connecting column 124 and is installed on the slider 121 and can rotate relative to the slider 121, and the space between the end face of the slider 121 and the sliding part 120 meets the requirement of the guide block on rotation relative to the slider 121.

When the slide rail is closed, the sliding part 120 is also retracted toward the fixed part 110 along the sliding rod 130, at this time, the two springs 140 are in a relaxed state, the guide block and the sliding block 121 are linearly located at one end of the sliding slot 131 close to the fixed part 110, and the guide column 125 is located in the second arc-shaped slot 510. When the sliding rail is opened, the acting force is transmitted to the inner rail 500, and the sliding block 121 is driven to slide along the sliding groove 131 through the hooking action of the second arc-shaped groove 510 on the guide column 125; then the guiding post 125 rotates relative to the sliding block 121 to enter the first arc-shaped groove 132, at the same time, the hooking action between the second arc-shaped groove 510 and the guiding post 125 disappears, the second arc-shaped groove 510 and the guiding post 125 are separated, and the inner rail 500 continues to slide until the sliding rail is completely opened. When the sliding rail is closed, the inner rail 500 is retracted towards the outer rail 300, so that the guide post 125 is located in the second arc-shaped groove 510, the second arc-shaped groove 510 pushes the guide post to slide into the sliding groove 131 from the first arc-shaped groove 132, at this time, a hooking and pulling effect between the second arc-shaped groove 510 and the guide post 125 is generated, the guide post 125 continues to drive the inner rail 500 to retract along the sliding groove 131, and meanwhile, due to the buffering effect of the hydraulic cylinder 150, the retracting speed of the sliding rail is slowed down until the sliding rail is closed. The whole folding process is soft and noiseless, the use experience of a user is improved, and meanwhile the service life of furniture is prolonged. Further, when the sliding rail is in a closed state, the two springs 140 are in a loose state, and when the sliding rail is opened, a user needs to apply a certain pulling force to overcome the pulling force generated by the two springs 140 in the process, so that a child is prevented from opening the drawer for playing, and the safety performance of furniture use is improved.

The inner rail 500 is provided with an elastic member 600, the elastic member 600 facilitates the installation, detachment and sliding limit of the inner rail 500, and comprises a poking arm 610 and an elastic arm 620 which are integrally formed, wherein the poking arm 610 is connected with one end of the elastic arm 620, the other end of the poking arm is gradually far away from the elastic arm 620, and the poking arm 610 and the elastic arm are respectively adjacent to two side faces of the inner rail 500. The elastic arm 620 is provided with a protrusion 621, one edge of which is gradually inclined toward the opposite edge in the sliding direction a. For better matching work, the middle rail 400 is provided with a limiting member 700, and the limiting member 700 is mounted on the middle rail 400 through a mounting clip 710. The limiting member 700 has a stopping portion 720, and the stopping portion 720 matches with the protrusion 621, and one edge of the stopping portion is gradually inclined toward the opposite edge along the opposite direction of the sliding direction a. When the slide rail is in the installed state and is opened, the inner rail 500 cannot be separated from the middle rail 400 due to the blocking effect of the blocking portion 720 on the protrusion 621. If the inner rail 500 needs to be disassembled, the user presses the poke arm 610 to one side of the elastic arm 620, the elastic arm 620 is stressed to bend, the convex part 621 is separated from the blocking part 720, and the inner rail 500 can be disassembled easily and quickly; when the inner rail 500 is installed, due to the special design of the stopping portion 720 and the protrusion 621, the inner rail 500 can be directly pushed into the middle rail 400, and after the elastic member 600 passes through the limiting member 700, due to the resisting action of the stopping portion 720 and the protrusion 621, the inner rail 500 cannot be separated from the middle rail 400, that is, the installation of the inner rail 500 is rapidly completed.

Except for the limiting member 700, a protrusion 800 is disposed at one end (not shown) of the middle rail 400 close to the fixing portion 110 and one end (shown) of the outer rail 300 far from the fixing portion 110 to limit the sliding stroke of the sliding rail, so as to prevent the sliding rail from derailing when the sliding rail is opened.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. The buffer three-section rail is characterized by comprising a buffer component (100), an outer rail (300), a middle rail (400) and an inner rail (500) which are sequentially and movably connected through a steel ball assembly, wherein the steel ball assembly comprises a steel ball frame (210) and a steel ball strip (220), the steel ball frame (210) is arranged between the inner rail (500) and the middle rail (400), and the steel ball strip (220) is arranged between the middle rail (400) and two sides of the outer rail (300);

the buffer assembly (100) is mounted on an outer rail (300) and comprises a fixing part (110) and a sliding part (120), the fixing part (110) is mounted on the outer rail (300) and is provided with a sliding rod (130) movably connected with the sliding part (120), the sliding rod (130) is provided with a sliding chute (131), the sliding part (120) is provided with a matched sliding block (121), the sliding block (121) further comprises a guide block, the guide block comprises a connecting column (124) and a guide column (125) which are connected through a connecting rod (123), and the guide block is inserted into the sliding block (121) through the connecting column (124) and mounted on the sliding block (121) and can rotate relative to the sliding block (121);

the buffer assembly (100) further comprises a hydraulic cylinder (150), the hydraulic cylinder (150) is installed on the fixing portion (110), a piston of the hydraulic cylinder is installed on the sliding portion (120), and a spring (140) is arranged between the fixing portion (110) and the sliding portion (120) for connection.

2. The three-segment buffer rail according to claim 1, wherein the end of the sliding groove (131) far away from the fixed part (110) is provided with a first arc-shaped groove (132), the surface of the inner rail (500) near the end of the fixed part (110) opposite to the middle rail (400) is provided with a second arc-shaped groove (510), and the second arc-shaped groove (510) and the first arc-shaped groove (132) are horizontally symmetrical.

3. The buffering three-section rail according to claim 2, wherein the inner rail (500) is provided with an elastic member (600), the elastic member (600) comprises a toggle arm (610) and an elastic arm (620) which are integrally formed, the toggle arm (610) is connected with one end of the elastic arm (620), the other end of the toggle arm is gradually far away from the elastic arm, the elastic arm (620) is provided with a convex portion (621), and one edge of the convex portion (621) is gradually inclined towards the other opposite edge along the sliding direction A.

4. The three-section buffer rail according to claim 3, wherein the middle rail (400) is provided with a limiting member (700), the limiting member (700) is mounted on the middle rail (400) through a mounting fastener (710), the limiting member (700) is provided with a stopping portion (720), the stopping portion (720) is matched with the convex portion (621), and one edge of the stopping portion gradually inclines towards the opposite edge along the opposite direction of the sliding direction A.