CN215304215U - Drawer guide rail structure - Google Patents
Drawer guide rail structure Download PDFInfo
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- CN215304215U CN215304215U CN202121804788.3U CN202121804788U CN215304215U CN 215304215 U CN215304215 U CN 215304215U CN 202121804788 U CN202121804788 U CN 202121804788U CN 215304215 U CN215304215 U CN 215304215U
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- outer rail
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Abstract
The utility model discloses a drawer guide rail structure, which is characterized in that four rows of balls arranged in a cross-shaped structure are used as supports between two layers of tracks, so that the drawer guide rail structure is integrally firm and reliable; the ball rolls along a groove body with a similar circular cross section formed by the first arc-shaped groove and the second arc-shaped groove between the outer rail and the inner rail, the matching is precise, the gap is small, and the sliding hand feeling is good; the other side edge of the inner rail is provided with a bending part which deviates from the longitudinal beam and extends to the adjacent side surface of the outer rail, so that the wrapping area of a groove body formed by the first arc-shaped groove and the second arc-shaped groove at the positions corresponding to the bending part on the outer rail and the inner rail to the balls is increased, the load sagging amount of the balls at the positions is further reduced, and the longitudinal bending or distortion resisting effect of the drawer guide rail structure is improved; the drawer guide rail structure has compact and reasonable structural design, stable and smooth sliding operation and large bearing weight, and is suitable for being installed on all furniture.
Description
Technical Field
The utility model relates to the technical field of hardware products, in particular to a drawer guide rail structure.
Background
Generally, a linear guide rail installed in a drawer of furniture belongs to a double-wheel or double-bead structure, although the structure is simple, the stability is poor, most of the drawer is shaken during movement, the bearing weight is small, and the linear guide rail is not suitable for high-grade furniture, so that improvement is needed. In addition, the guide rail installed in the drawer of the furniture on the market also has three-section rail, and this three-section rail comprises fixed rail, middle rail and movable rail (outer rail, middle rail and interior rail), and although this three-section rail has improved stability in use for the linear guide of double round or two pearl structures to a certain extent, its spare part is more, and production technology is complicated, and the cost is higher.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide a drawer guide rail structure, wherein four rows of balls arranged in a cross-shaped structure are used as supports between two layers of rails, so that the drawer guide rail structure is integrally firm and reliable; the ball rolls along a groove body with a similar circular cross section formed by the first arc-shaped groove and the second arc-shaped groove between the outer rail and the inner rail, the matching is precise, the gap is small, and the sliding hand feeling is good; the other side edge of the inner rail is provided with a bending part which deviates from the longitudinal beam and extends to the adjacent side surface of the outer rail, so that the wrapping area of a groove body formed by the first arc-shaped groove and the second arc-shaped groove at the positions corresponding to the bending part on the outer rail and the inner rail to the balls is increased, the load sagging amount of the balls at the positions is further reduced, and the longitudinal bending or distortion resisting effect of the drawer guide rail structure is improved; the drawer guide rail structure has compact and reasonable structural design, stable and smooth sliding operation and large bearing weight, and is suitable for being installed on all furniture.
In order to achieve the purpose, the technical scheme of the utility model is to design a drawer guide rail structure, which comprises an outer rail and an inner rail, wherein the outer rail surrounds the outer part of the inner rail, the cross section of the matching part of the inner rail and the outer rail is in a cross-shaped structure with four second arc-shaped grooves, the inner part of the outer rail is provided with four first arc-shaped grooves which are in one-to-one correspondence with the second arc-shaped grooves on the inner rail, and a plurality of balls are arranged in the first arc-shaped grooves and the second arc-shaped grooves which are in correspondence with each other on the outer rail and the inner rail; the bottom surface of the outer rail is provided with an open slot along the length direction, one side edge of the inner rail is provided with a longitudinal beam which downwards penetrates through the open slot and extends to the lower part of the outer rail, the other side edge of the inner rail is provided with a bending part which deviates from the longitudinal beam and extends to the adjacent side surface of the outer rail, and the curvature of the bending part is matched with the diameter of the ball.
According to the drawer guide rail structure, four rows of balls arranged in a cross-shaped structure are used as supports between two layers of rails, so that the drawer guide rail structure is integrally firm and reliable; the ball rolls along a groove body with a similar circular cross section formed by the first arc-shaped groove and the second arc-shaped groove between the outer rail and the inner rail, the matching is precise, the gap is small, and the sliding hand feeling is good; the other side edge of the inner rail is provided with a bending part which deviates from the longitudinal beam and extends to the adjacent side surface of the outer rail, so that the wrapping area of a groove body formed by the first arc-shaped groove and the second arc-shaped groove at the positions corresponding to the bending part on the outer rail and the inner rail to the ball is increased, the load sagging amount of the ball at the position is further reduced, and the longitudinal bending or distortion resisting effect of the drawer guide rail structure is improved; the drawer guide rail structure has compact and reasonable structural design, stable and smooth sliding operation and large bearing weight, and is suitable for being installed on all furniture.
The preferable technical scheme is that the device further comprises a retainer, the retainer is coaxially positioned between the outer rail and the inner rail, a plurality of ball mounting grooves are formed in the two ends of the retainer and correspond to the two ends of the inner rail at intervals along the length direction, the ball mounting grooves correspond to the second arc-shaped grooves in the inner rail, and the balls are mounted in the ball mounting grooves in the retainer in a one-to-one correspondence mode. The balls are limited and mounted in the ball mounting grooves on the retainer, so that when the outer rail and the inner rail slide relatively, the balls are distributed to keep uniform and smooth, and the use stability of the drawer guide rail structure is ensured.
The technical scheme is further preferably that the device further comprises an L-shaped bracket, the lower end edge surface of the longitudinal beam is fixedly connected with the horizontal plate end surface of the L-shaped bracket, and a plurality of mounting holes are formed in the vertical plate of the L-shaped bracket.
The inner rail is in a double cross-shaped connected structure, the number of the outer rails and the number of the retainers are two, the two outer rails are respectively surrounded on the cross-shaped rails on the upper side and the lower side of the longitudinal beam, and the two retainers are respectively positioned between the two corresponding outer rails and the inner rails. The drawer guide rail structure has the function of three rails, so that the application scene of the drawer guide rail structure is further expanded.
The technical scheme is that the device further comprises an L-shaped bracket, and a horizontal plate of the L-shaped bracket is fixedly installed at the bottom of the lower outer rail.
According to a further preferable technical scheme, a 7-shaped plug connector is fixedly arranged at the rear end of the top of the outer rail positioned on the upper side, and a drawer mounting assembly extending to the L-shaped bracket is fixedly arranged at the front end of the bottom of the outer rail positioned on the upper side. When the drawer guide rail structure is arranged on a drawer for use, the convenience of drawer installation is ensured through the splicing connection of the 7-shaped plug connector and the back plate of the drawer and the fixed connection of the drawer installation assembly and the bottom plate or the side plate of the drawer.
Further, according to the preferable technical scheme, a plurality of reinforcing rib plates are fixedly arranged between the vertical plate and the horizontal plate of the L-shaped bracket at intervals. The structural strength and the whole service life of the L-shaped bracket are improved.
Further preferably, the outer rail and the inner rail are both formed by rolling. The outer rail sectional material and the inner rail sectional material are convenient to process and cut according to the use requirements, and the processing efficiency of the outer rail and the inner rail is ensured.
The utility model has the advantages and beneficial effects that:
1. according to the drawer guide rail structure, four rows of balls arranged in a cross-shaped structure are used as supports between two layers of rails, so that the drawer guide rail structure is integrally firm and reliable; the ball rolls along a groove body with a similar circular cross section formed by the first arc-shaped groove and the second arc-shaped groove between the outer rail and the inner rail, the matching is precise, the gap is small, and the sliding hand feeling is good; the other side edge of the inner rail is provided with a bending part which deviates from the longitudinal beam and extends to the adjacent side surface of the outer rail, so that the wrapping area of a groove body formed by the first arc-shaped groove and the second arc-shaped groove at the positions corresponding to the bending part on the outer rail and the inner rail to the balls is increased, the load sagging amount of the balls at the positions is further reduced, and the longitudinal bending or distortion resisting effect of the drawer guide rail structure is improved; the drawer guide rail structure has compact and reasonable structural design, stable and smooth sliding operation and large bearing weight, and is suitable for being installed on all furniture.
2. The balls are limited and mounted in the ball mounting grooves on the retainer, so that when the outer rail and the inner rail slide relatively, the balls are distributed to keep uniform and smooth, and the use stability of the drawer guide rail structure is ensured.
3. The inner rail is of a double cross-shaped connected structure, the number of the outer rails and the number of the retainers are two respectively, the two outer rails are respectively surrounded on cross-shaped rails located on the upper side and the lower side of the longitudinal beam, the two retainers are respectively located between the two groups of corresponding outer rails and the inner rails, and the horizontal plate of the L-shaped bracket is fixedly installed at the bottom of the outer rail located on the lower side. The drawer guide rail structure has the function of three rails, so that the application scene of the drawer guide rail structure is further expanded.
4. When the drawer guide rail structure is arranged on a drawer for use, the convenience of drawer installation is ensured through the splicing connection of the 7-shaped plug connector and the back plate of the drawer and the fixed connection of the drawer installation assembly and the bottom plate or the side plate of the drawer.
Drawings
FIG. 1 is a schematic cross-sectional view of a drawer rail structure at a ball position (with a cage removed) in embodiment 1;
FIG. 2 is a schematic cross-sectional view of a drawer rail structure in a ball position (with a cage removed) in embodiment 2;
FIG. 3 is a schematic view showing an end structure of a drawer rail structure according to embodiment 2;
FIG. 4 is a schematic perspective view of a drawer rail structure according to embodiment 2;
fig. 5 is an exploded view of a drawer rail structure according to embodiment 2.
In the figure: 1. an outer rail; 2. an inner rail; 3. a ball bearing; 4. a holder; 5. an L-shaped bracket; 6. reinforcing rib plates; 7. a 7-shaped plug connector; 8. a drawer mounting assembly; 1-1, an open slot; 1-2, a first arc-shaped groove; 2-1, a second arc-shaped groove; 2-2, bending parts; 2-3, longitudinal beams; 4-1, ball mounting grooves; 5-1, mounting holes.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1
As shown in fig. 1, a drawer guide rail structure comprises an outer rail 1 and an inner rail 2, wherein the outer rail 1 surrounds the outer part of the inner rail 2, the cross section of the matching part of the inner rail 2 and the outer rail 1 is in a cross-shaped structure with four second arc-shaped grooves 2-1, the inner part of the outer rail 1 is provided with four first arc-shaped grooves 1-2 which are in one-to-one correspondence with the second arc-shaped grooves 2-1 on the inner rail 2, and a plurality of balls 3 are arranged in the corresponding first arc-shaped grooves 1-2 and the corresponding second arc-shaped grooves 2-1 on the outer rail 1 and the inner rail 2; the bottom surface of the outer rail 1 is provided with an open slot 1-1 along the length direction, one side edge of the inner rail 2 is provided with a longitudinal beam 2-3 which downwards penetrates through the open slot 1-1 and extends to the lower part outside the outer rail 1, the other side edge of the inner rail 2 is provided with a bending part 2-2 which deviates from the longitudinal beam 2-3 and extends to the adjacent side surface of the outer rail 1, and the curvature of the bending part 2-2 is matched with the diameter of the ball 3.
Preferably, the track structure further comprises a retainer 4, the retainer 4 is coaxially located between the outer rail 1 and the inner rail 2, a plurality of ball mounting grooves 4-1 are correspondingly arranged at intervals at two ends of the retainer 4 along the length direction, the plurality of ball mounting grooves 4-1 correspond to the second arc-shaped grooves 2-1 on the inner rail 2, and the plurality of balls 3 are correspondingly mounted in the ball mounting grooves 4-1 on the retainer 4 one by one.
Further preferably, the support structure further comprises an L-shaped bracket 5, the lower end edge surface of the longitudinal beam 2-3 is fixedly connected with the horizontal plate end surface of the L-shaped bracket 5, and a plurality of mounting holes 5-1 are formed in the vertical plate of the L-shaped bracket 5.
Further preferably, a plurality of reinforcing rib plates 6 are fixedly arranged between the vertical plate and the horizontal plate of the L-shaped bracket 5 at intervals.
Further preferably, the outer rail 1 and the inner rail 2 are both formed by rolling.
two drawer guide rail structures in the embodiment 1 are prepared, the L-shaped brackets 5 on the two drawer guide rail structures are symmetrically arranged at the corresponding positions of the left side plate and the right side plate of the cabinet body through screws respectively, and then the drawer is fixedly arranged at the tops of the outer rails 1 of the two drawer guide rail structures in the cabinet body.
Example 2
As shown in fig. 2 to 5, a drawer guide rail structure is different from the drawer guide rail structure in embodiment 1 in that the inner rail 2 is a double cross-shaped connected structure, two outer rails 1 and two retainers 4 are provided, the two outer rails 1 are respectively enclosed on the cross-shaped rails on the upper and lower sides of the longitudinal beam 2-3, and the two retainers 4 are respectively located between the two corresponding outer rails 1 and the inner rail 2.
Preferably, the device also comprises an L-shaped bracket 5, and a horizontal plate of the L-shaped bracket 5 is fixedly arranged at the bottom of the lower outer rail 1.
Preferably, a 7-shaped plug connector 7 is fixedly arranged at the rear end of the top of the outer rail 1 positioned at the upper side, and a drawer mounting component 8 extending towards the L-shaped bracket 5 is fixedly arranged at the front end of the bottom of the outer rail 1 positioned at the upper side.
preparing two drawer guide rail structures in the embodiment 1, and symmetrically installing L-shaped brackets 5 on the two drawer guide rail structures at corresponding positions of the left side plate and the right side plate of the cabinet body through screws respectively; then, the drawer is placed at the top of the outer rail 1 at the upper side of the two drawer guide rail structures in the cabinet body, and the drawer is fixedly connected with the two drawer guide rail structures through the 7-shaped plug connectors 7 and the drawer mounting assembly 8.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A drawer guide rail structure is characterized by comprising an outer rail (1) and an inner rail (2), wherein the outer rail (1) is surrounded outside the inner rail (2), the cross section of the matching part of the inner rail (2) and the outer rail (1) is of a cross-shaped structure with four second arc-shaped grooves (2-1), four first arc-shaped grooves (1-2) which are in one-to-one correspondence with the second arc-shaped grooves (2-1) on the inner rail (2) are formed in the outer rail (1), and a plurality of balls (3) are arranged in the corresponding first arc-shaped grooves (1-2) and the second arc-shaped grooves (2-1) on the outer rail (1) and the inner rail (2); be equipped with on the bottom surface of outer rail (1) along length direction's open slot (1-1), a lateral margin of interior rail (2) is equipped with and runs through downwards open slot (1-1) and extend to longeron (2-3) of outer rail (1) outside below, and the opposite side margin of interior rail (2) has the portion of bending (2-2) that deviates from longeron (2-3) and extend to outer rail (1) adjacent side, the camber of the portion of bending (2-2) and the diameter looks adaptation of ball (3).
2. The drawer guide rail structure according to claim 1, further comprising a retainer (4), wherein the retainer (4) is coaxially located between the outer rail (1) and the inner rail (2), a plurality of ball mounting grooves (4-1) are formed in two ends of the retainer (4) at intervals along the length direction, the plurality of ball mounting grooves (4-1) correspond to the second arc-shaped grooves (2-1) in the inner rail (2), and a plurality of balls (3) are correspondingly mounted in the ball mounting grooves (4-1) in the retainer (4).
3. The drawer rail structure of claim 2, further comprising an L-shaped bracket (5), wherein the lower end face of the longitudinal beam (2-3) is fixedly connected with the horizontal plate end face of the L-shaped bracket (5), and a plurality of mounting holes (5-1) are formed in the vertical plate of the L-shaped bracket (5).
4. The drawer guide rail structure according to claim 2, wherein the inner rail (2) is in a double cross-shaped connected structure, the number of the outer rails (1) and the number of the retainers (4) are two, the two outer rails (1) are respectively enclosed on the cross-shaped rails on the upper side and the lower side of the longitudinal beam (2-3), and the two retainers (4) are respectively positioned between the two corresponding outer rails (1) and the inner rails (2).
5. The drawer guide structure of claim 4, further comprising an L-shaped bracket (5), wherein the horizontal plate of the L-shaped bracket (5) is fixedly installed at the bottom of the lower outer rail (1).
6. The drawer rail structure according to claim 3 or 5, characterized in that a 7-shaped connector (7) is fixedly arranged at the rear end of the top of the outer rail (1) at the upper side, and a drawer mounting assembly (8) extending towards the L-shaped bracket (5) is fixedly arranged at the front end of the bottom of the outer rail (1) at the upper side.
7. The drawer rail structure according to claim 3 or 5, characterized in that a plurality of reinforcing rib plates (6) are fixedly arranged between the vertical plate and the horizontal plate of the L-shaped bracket (5) at intervals.
8. The drawer rail construction according to claim 1, characterized in that the outer rail (1) and the inner rail (2) are both roll-formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121804788.3U CN215304215U (en) | 2021-08-04 | 2021-08-04 | Drawer guide rail structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121804788.3U CN215304215U (en) | 2021-08-04 | 2021-08-04 | Drawer guide rail structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215304215U true CN215304215U (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121804788.3U Active CN215304215U (en) | 2021-08-04 | 2021-08-04 | Drawer guide rail structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215304215U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117878766A (en) * | 2024-03-13 | 2024-04-12 | 河南金石普惠科技有限公司 | Draw-out type switch cabinet |
-
2021
- 2021-08-04 CN CN202121804788.3U patent/CN215304215U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117878766A (en) * | 2024-03-13 | 2024-04-12 | 河南金石普惠科技有限公司 | Draw-out type switch cabinet |
| CN117878766B (en) * | 2024-03-13 | 2024-05-14 | 河南金石普惠科技有限公司 | Draw-out type switch cabinet |
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