CN-224219747-U - Slide rail with synchronous linkage function

Abstract

The utility model discloses a sliding rail with a synchronous linkage function, which comprises a lower rail, a middle rail arranged on the lower rail, and an upper rail arranged on the middle rail, wherein an upper bearing wheel carrier is arranged between the upper rail and the middle rail, a lower bearing wheel carrier is arranged between the lower rail and the middle rail, the sliding rail further comprises a gear carrier arranged on the lower rail, the gear carrier is positioned on the outer sides of the upper rail, the middle rail and the lower rail, a synchronous linkage mechanism is arranged between the upper rail and the middle rail and between the middle rail and the gear carrier, the synchronous linkage mechanism comprises a gear set arranged on the middle rail, a first rack arranged on the outer side of the upper rail and a second rack arranged on the gear carrier, and gears in the gear set are meshed with the first rack and the second rack respectively. The sliding rail with the synchronous linkage function has better synchronous linkage performance, thereby giving better user experience to users.

Inventors

• LUO ZHIMING

Assignees

• 河源市瑞家家居五金有限公司

Dates

Publication Date

20260512

Application Date

20250429

Claims (10)

1. 1. The sliding rail with the synchronous linkage function is characterized by comprising a lower rail, a middle rail arranged on the lower rail and an upper rail arranged on the middle rail, wherein an upper bearing wheel carrier is arranged between the upper rail and the middle rail, and a lower bearing wheel carrier is arranged between the lower rail and the middle rail; The gear rack is positioned on the outer sides of the upper rail, the middle rail and the lower rail, synchronous linkage mechanisms are arranged between the upper rail and the middle rail and between the middle rail and the gear rack, each synchronous linkage mechanism comprises a gear set arranged on the middle rail, a first rack arranged on the outer side of the upper rail and a second rack arranged on the gear rack, and gears in the gear sets are meshed with the first rack and the second rack respectively.
2. 2. The slide rail with synchronous linkage function according to claim 1, wherein the gear set comprises a first gear, the upper end of the first gear is meshed with the first rack, and the lower end of the first gear is meshed with the second rack.
3. 3. The sliding rail with the synchronous linkage function according to claim 1, wherein the gear set comprises a first gear and a second gear which are coaxially arranged, the diameter of the first gear is larger than that of the second gear, the first gear is meshed with the first rack, and the second gear is meshed with the second rack.
4. 4. The slide rail with a synchronous linkage function according to any one of claims 1 to 3, wherein the upper rail comprises a first upper rail tab horizontally arranged and a second upper rail tab arranged at both sides of the first upper rail tab, wherein the second upper rail tabs at both sides extend vertically downward and are curved inward in an arc to form a third upper rail tab; The lower rail comprises a first lower rail joint sheet which is horizontally arranged, a second lower rail joint sheet which is arranged at the left side/right side of the first lower rail joint sheet, a third lower rail joint sheet which extends vertically upwards and bends horizontally to the right side/left side to form horizontal extension; The middle rail comprises a first middle rail joint sheet which is horizontally arranged and a second middle rail joint sheet which is arranged at two sides of the first middle rail joint sheet, wherein the upper ends of the second middle rail joint sheets at two sides are connected with the first middle rail joint sheet in an arc manner, and the lower ends of the second middle rail joint sheets vertically extend downwards and are horizontally bent to the left side or the right side to form a third middle rail joint sheet which horizontally extends.
5. 5. The slide rail with synchronous linkage function according to claim 4, wherein the gear rack is fixed on the lower bearing wheel rack through a connecting piece.
6. 6. The sliding rail with the synchronous linkage function according to claim 5, wherein the gear frame is provided with a limiting groove, a plurality of groups of limiting blocks are arranged on the side wall of one side of the limiting groove, the plurality of groups of limiting blocks are arranged along the extending direction of the limiting groove, and a third middle rail joint sheet of one side of the middle rails is positioned in the limiting groove and below the limiting blocks.
7. 7. The sliding rail with the synchronous linkage function according to claim 6, wherein a plurality of groups of limiting rollers are arranged in the limiting groove, the plurality of groups of limiting rollers are vertically and rotatably connected to the side wall of the other side of the limiting groove and are arranged along the extending direction of the limiting groove, and the wheel surfaces of the limiting rollers are respectively contacted with the second middle rail joint piece on one side of the middle rail and the second lower rail joint piece of the lower rail.
8. 8. The slide rail with a synchronous linkage function according to claim 4, wherein an auxiliary wheel set is further arranged on the lower rail, the auxiliary wheel set comprises an auxiliary wheel frame mounted on the first lower rail joint sheet and an auxiliary wheel arranged on the auxiliary wheel frame, wherein the auxiliary wheel is rotatably connected to the auxiliary wheel frame, and a wheel surface of the auxiliary wheel is in contact with a third upper rail joint sheet on one side of the upper rail.
9. 9. The sliding rail with the synchronous linkage function according to claim 4, wherein the gear frame is provided with a plurality of groups of mounting blocks, the plurality of groups of mounting blocks extend along the length direction of the gear frame, and the lower bearing wheel frame is provided with a mounting groove matched with the mounting blocks.
10. 10. The slide rail with synchronous linkage function according to claim 4, wherein the upper bearing wheel frame comprises an upper bearing frame, a first upper bearing component and a second upper bearing component, wherein the first upper bearing component is positioned between the first upper rail joint sheet and the first middle rail joint sheet, the second upper bearing component is positioned at two sides of the first upper bearing component and is positioned between the second middle rail joint sheet and the third upper rail joint sheet at two sides respectively, and the lower bearing wheel frame comprises a lower bearing frame, a first lower bearing component and a second lower bearing component, wherein the first lower bearing component is positioned between the first middle rail joint sheet and the third lower rail joint sheet, and the second lower bearing component is positioned between the third lower rail joint sheet and the third middle rail joint sheet at one side.

Description

Slide rail with synchronous linkage function Technical Field The utility model belongs to the field of household manufacturing, and particularly relates to a sliding rail with a synchronous linkage function. Background The three-section sliding rail is a common furniture hardware and is widely used in furniture with drawers. The drawing distance of the three sections of sliding rails is longer than that of the two sections of sliding rails, so that the drawer can be completely drawn out, and the three sections of sliding rails have higher practicability. The three-section sliding rail mainly comprises a fixed rail, a middle rail and an upper rail, rolling bodies are respectively arranged between the fixed rail and the middle rail and between the middle rail and the upper rail to keep smooth sliding, the rolling bodies are arranged on a retainer, and a gear is also arranged on the middle rail to be matched with racks on two groups of rolling body retainers to ensure the synchronism of the drawing movement of the middle rail and the upper rail. However, the synchronization of the upper rail, the middle rail and the lower rail in the existing three-section sliding rail in the market is poor, and the user cannot be given a good user experience. Disclosure of utility model The utility model provides the sliding rail with the synchronous linkage function, which has better synchronous linkage property so as to provide good user experience for users. The technical scheme for solving the technical problems is as follows: The sliding rail with the synchronous linkage function comprises a lower rail, a middle rail arranged on the lower rail and an upper rail arranged on the middle rail, wherein an upper bearing wheel carrier is arranged between the upper rail and the middle rail, and a lower bearing wheel carrier is arranged between the lower rail and the middle rail; The gear rack is positioned on the outer sides of the upper rail, the middle rail and the lower rail, synchronous linkage mechanisms are arranged between the upper rail and the middle rail and between the middle rail and the gear rack, each synchronous linkage mechanism comprises a gear set arranged on the middle rail, a first rack arranged on the outer side of the upper rail and a second rack arranged on the gear rack, and gears in the gear sets are meshed with the first rack and the second rack respectively. Preferably, the gear set comprises a first gear, wherein the upper end of the first gear is meshed with the first rack, and the lower end of the first gear is meshed with the second rack. Preferably, the gear set comprises a first gear and a second gear which are coaxially arranged, the diameter of the first gear is larger than that of the second gear, the first gear is meshed with the first rack, and the second gear is meshed with the second rack. Preferably, the upper rail comprises a first upper rail joint sheet horizontally arranged and second upper rail joint sheets arranged at two sides of the first upper rail joint sheet, wherein the second upper rail joint sheets at two sides vertically extend downwards and bend inwards in an arc manner to form a third upper rail joint sheet; The lower rail comprises a first lower rail joint sheet which is horizontally arranged, a second lower rail joint sheet which is arranged at the left side/right side of the first lower rail joint sheet, a third lower rail joint sheet which extends vertically upwards and bends horizontally to the right side/left side to form horizontal extension; The middle rail comprises a first middle rail joint sheet which is horizontally arranged and a second middle rail joint sheet which is arranged at two sides of the first middle rail joint sheet, wherein the upper ends of the second middle rail joint sheets at two sides are connected with the first middle rail joint sheet in an arc manner, and the lower ends of the second middle rail joint sheets vertically extend downwards and are horizontally bent to the left side or the right side to form a third middle rail joint sheet which horizontally extends. Preferably, the gear rack is fixed on the lower bearing wheel rack through a connecting piece. Preferably, the gear frame is provided with a limiting groove, a plurality of groups of limiting blocks are arranged on the side wall of one side of the limiting groove, the plurality of groups of limiting blocks are arranged along the extending direction of the limiting groove, and a third middle rail joint sheet on one side of the middle rails is positioned in the limiting groove and below the limiting blocks. Preferably, the gear rack is provided with a plurality of groups of limiting rollers in the limiting groove, the plurality of groups of limiting rollers are vertically and rotatably connected to the side wall of the other side of the limiting groove and are arranged along the extending direction of the limiting groove, and the wheel surfaces of the limiting rollers are respectively