CN218127622U

CN218127622U - Drawer guide rail structure

Info

Publication number: CN218127622U
Application number: CN202222344573.9U
Authority: CN
Inventors: 何荣胜; 周茂业; 何泳霏
Original assignee: Dongguan Ouda Hardware Products Co ltd
Current assignee: Dongguan Ouda Hardware Products Co ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2022-12-27
Anticipated expiration: 2032-09-02

Abstract

The utility model discloses a drawer guide rail structure, it includes: the device comprises a bottom rail, a middle rail sleeved on the bottom rail, an upper rail sleeved on the middle rail, a lower rack assembly body arranged between the bottom rail and the middle rail, an upper linkage wheel carrier arranged between the upper rail and the middle rail, a linkage gear arranged on the middle rail and meshed with the lower rack assembly body, and an upper rack arranged on the upper rail and meshed with the linkage gear, wherein the middle rail is provided with a wheel carrier used for fixing the linkage gear, the wheel carrier is provided with a positioning sliding hook extending and hooking the lower rack assembly body, and a first stroke groove used for allowing the positioning sliding hook to move is arranged in the lower rack assembly body. The gear carrier is provided with the positioning sliding hook which hooks the first stroke groove in the lower rack assembly body, so that the gear carrier is kept stably meshed with the lower rack assembly body without jumping teeth in the moving process, the upper rack is directly fixed on the upper rail and kept tightly meshed with the linkage gear, and the mutual jumping during the movement is avoided, so that the middle rail, the bottom rail and the upper rail are stable in relative sliding.

Description

Drawer guide rail structure

The technical field is as follows:

the utility model relates to the field of drawer accessories, in particular to a drawer guide rail structure.

Background art:

the drawer is a box for placing articles in furniture such as tables, cabinets and the like, has a bottom and no cover, and can be drawn out and pushed in. The existing drawer is often provided with guide rails at the bottom or two sides of the drawer for ensuring smooth pushing and pulling, and in order to make the drawer push and pull more stable and smooth, the guide rails are generally of a three-section linkage structure, and are connected with a transmission by utilizing a gear rack, but the traditional three-section linkage guide rail gear structure is unstable, so that the conditions of tooth jumping and the like easily occur, and the normal use of the drawer is influenced.

In view of the above, the present inventors propose the following.

The utility model has the following contents:

the utility model aims to overcome the defects of the prior art and provide a drawer guide rail structure.

In order to solve the technical problem, the utility model discloses a following technical scheme: a drawer rail structure comprising: the middle rail is provided with a gear frame used for fixing the gear of the linkage gear, the gear frame is provided with a positioning sliding hook which extends and hooks the lower rack assembly body, the lower rack assembly body is internally provided with a first stroke groove used for allowing the positioning sliding hook to move, and the middle rail, the bottom rail and the upper rail relatively slide.

Furthermore, in the above technical scheme, two side walls of the middle rail are respectively provided with a first positioning groove for installing and positioning the linkage upper wheel carrier and guiding the linkage upper wheel carrier in a sliding positioning manner, the linkage upper wheel carrier is installed on the middle rail in a posture of tightly holding the middle rail, two sides of the linkage upper wheel carrier are provided with first rolling balls abutting against the first positioning groove, and two ends of the middle rail are provided with first limiting protrusions for limiting the movement of the linkage upper wheel carrier.

Furthermore, in the above technical solution, the linkage upper wheel carrier is provided with at least two rollers and located at two ends of the wheel carrier, the linkage upper wheel carrier is located between the upper rack and the middle rail, the linkage upper wheel carrier is further provided with a plurality of first rollers which are located between the upper rail and the middle rail and contact and press the first rollers, and the linkage upper wheel carrier is further provided with a first travel step for the upper rack to move.

Furthermore, in the above technical solution, an L-shaped guide rail portion for mounting the lower rack assembly body is formed by bending the bottom rail, the lower rack assembly body includes a lower rack slidably mounted on the L-shaped guide rail portion and at least two interlocked lower wheel carriers slidably disposed on the lower rack and hooking the L-shaped guide rail portion, and the interlocked lower wheel carriers are provided with first sliding grooves for fastening to the L-shaped guide rail portion.

Furthermore, in the above technical solution, a plurality of second rollers for abutting against the L-shaped guide rail portion and the middle rail are disposed on two sides of the first sliding groove, and guide rollers are further mounted on the lower linked wheel carrier and are respectively connected to the side walls of the bottom rail and the side wall of the middle rail on two sides.

Furthermore, in the above technical solution, two ends of the lower rack are respectively provided with a first mounting groove for mounting the linkage lower wheel carrier, two sides of the first mounting groove are provided with a first supporting block for supporting the linkage lower wheel carrier, and the first supporting block is provided with a first clamping wedge block for clamping and fastening the linkage lower wheel carrier; the two sides of the linkage lower wheel carrier are provided with fastening grooves for fastening to the first supporting blocks, and the side walls of the fastening grooves are provided with first clamping holes matched and clamped with the first clamping wedge blocks.

Furthermore, in the above technical solution, the lower rack is L-shaped, the tooth portion on the lower rack is located at the right-angle joint, the lower rack is further provided with a plurality of third rollers for abutting against the side wall of the L-shaped guide rail portion and the middle rail, and the first mounting groove and the third rollers are located on two sides of the tooth portion respectively.

Furthermore, in the above technical solution, two ends of the L-shaped guide rail portion are provided with a second limiting protrusion for limiting sliding of the lower rack, two ends of the lower rack are provided with a V-shaped elastic block for contacting and pressing with the second limiting protrusion, and the third roller is located at a side of the V-shaped elastic block.

Furthermore, in the above technical solution, the upper rack is provided with a first clamping protrusion in clamping connection with the upper rail, and the upper rail is provided with a first clamping hole in clamping matching with the first clamping protrusion.

After the technical scheme is adopted, compared with the prior art, the utility model has following beneficial effect: the utility model discloses well adoption is fixed the rack on the upper rail, and extend to set up on the gear frame and be used for spacing location slip hook, be used for supplying the spacing first stroke groove of slip of location slip hook through setting up in the lower rack assembly body, make the gear frame in the motion process can prescribe a limit to on the well rail with the interlock gear, keep assembling the body stable meshing not jumping the tooth with the lower rack, and keep keeping the inseparable meshing with the interlock gear by last rack snap-on the upper rail, beat each other when avoiding moving, thereby make well rail and foot rail and the smooth and stable of upper rail relative slip.

Description of the drawings:

fig. 1 is an exploded view of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 isbase:Sub>A cross-sectional view of section A-A of FIG. 2;

FIG. 4 is a cross-sectional view of section B-B of FIG. 2;

fig. 5 is a structural view of the lower rack assembly of the present invention.

The specific implementation mode is as follows:

the present invention will be further described with reference to the following specific embodiments and accompanying drawings.

Referring to fig. 1 to 5, there is shown a drawer rail structure, which includes: the track comprises a bottom rail 1, a middle rail 2 sleeved on the bottom rail 1, an upper rail 3 sleeved on the middle rail 2, a lower rack assembly 4 arranged between the bottom rail 1 and the middle rail 2, an upper linkage wheel carrier 5 arranged between the upper rail 3 and the middle rail 2, a linkage gear 6 arranged on the middle rail 2 and meshed with the lower rack assembly 4, and an upper rack 7 arranged on the upper rail 3 and meshed with the linkage gear 6, wherein a wheel carrier 8 used for fixing the linkage gear 6 is arranged on the middle rail 2, a positioning slide hook 81 extending and hooking the lower rack assembly 4 is arranged on the wheel carrier 8, a first stroke groove 40 used for allowing the positioning slide hook 81 to move is arranged in the lower rack assembly 4, and the middle rail 2 slides relative to the bottom rail 1 and the upper rail 3. The upper rack 7 is fixed on the upper rail 3, the positioning sliding hook 81 for limiting is arranged on the gear carrier 8 in an extending mode, the first stroke groove 40 for enabling the positioning sliding hook 81 to slide and limit is arranged in the lower rack assembly body 4, the gear carrier 8 can limit the linkage gear 6 on the middle rail 2 in the moving process, stable meshing with the lower rack assembly body 4 is kept without jumping teeth, the upper rack 7 is directly fixed on the upper rail 3 and keeps tight meshing with the linkage gear 6, mutual jumping during moving is avoided, and therefore the middle rail 2, the bottom rail 1 and the upper rail 3 slide smoothly and stably relatively.

The two side walls of the middle rail 2 are respectively provided with a first positioning groove 21 for installing and positioning the linkage upper wheel frame 5 and guiding the linkage upper wheel frame 5 in a sliding positioning manner, the linkage upper wheel frame 5 is installed on the middle rail 2 in a state of tightly holding the middle rail 2, two sides of the linkage upper wheel frame 5 are provided with first rolling balls 51 which are pressed in the first positioning grooves 21, and two ends of the middle rail 2 are provided with first limiting protrusions 22 for limiting the movement of the linkage upper wheel frame 5.

The linkage upper wheel frame 5 is provided with at least two wheels and is positioned at two ends of the wheel carrier 8, the linkage upper wheel frame 5 is positioned between the upper rack 7 and the middle rail 2, the linkage upper wheel frame 5 is further provided with a plurality of first rollers 52 which are positioned between the upper rail 3 and the middle rail 2 and are contacted and pressed, and the linkage upper wheel frame 5 is further provided with a first travel step 53 for the upper rack 7 to move.

The bottom rail 1 is bent to form an L-shaped guide rail portion 11 for mounting the lower rack assembly 4, the lower rack assembly 4 includes a lower rack 41 slidably mounted on the L-shaped guide rail portion 11 and at least two linked lower wheel frames 42 disposed on the lower rack 41 and slidably hooking the L-shaped guide rail portion 11, and the linked lower wheel frames 42 are provided with first sliding grooves 421 for being buckled to the L-shaped guide rail portion 11. The first sliding groove 421 and the L-shaped guide rail 11 are arranged on the lower linked wheel frame 42 to cooperate with limiting and positioning, so that the lower rack assembly 4 can stably and difficultly sway when sliding relative to the bottom rail 1, and meanwhile, the sliding hooks 81 are used for cooperating and positioning to hook the first travel grooves 40 in the lower rack assembly 4 on two sides of the L-shaped guide rail 11, so that the limitation of the two sides of the middle rail 2 relative to the bottom rail 1 is realized, and the overturning and deviation generated in the motion process of the middle rail 2 is prevented.

A plurality of second rollers 422 which are used for abutting against the L-shaped guide rail part 11 and the middle rail 2 are arranged on two sides of the first sliding groove 421, and guide rollers 423 which are respectively arranged on the bottom rail 1 side wall and the middle rail 2 side wall on two sides are further arranged on the linkage lower wheel carrier 42. The lower linked wheel frame 42 is provided with guide rollers 423 which are respectively contacted with the side wall of the bottom rail 1 and the side wall of the middle rail 2, so that the friction force of the lower linked wheel frame 42 moving relative to the bottom rail 1 and the middle rail 2 is smaller.

Two ends of the lower rack 41 are respectively provided with a first mounting groove 411 for mounting the linkage lower wheel frame 42, two sides of the first mounting groove 411 are provided with a first supporting block 412 for supporting the linkage lower wheel frame 42, and the first supporting block 412 is provided with a first clamping wedge 413 for clamping and fastening the linkage lower wheel frame 42; two sides of the lower linked wheel frame 42 are provided with buckling grooves 424 for buckling to the first supporting blocks 412, and the side walls of the buckling grooves 424 are provided with first clamping holes 425 matched and clamped with the first clamping wedges 413.

The lower rack 41 is L-shaped, the tooth portion of the lower rack 41 is located at the right-angle joint, the lower rack 41 is further provided with a plurality of third rollers 414 for abutting against the side wall of the L-shaped guide rail portion 11 and the middle rail 2, and the first mounting groove 411 and the third rollers 414 are respectively located on two sides of the tooth portion. The first stroke groove 40 is located below the tooth portion of the lower rack 41.

Two ends of the L-shaped guide rail portion 11 are provided with second limiting protrusions 12 for limiting the sliding of the lower rack 41, two ends of the lower rack 41 are provided with V-shaped elastic blocks 415 for contacting and pressing with the second limiting protrusions 12, and the third roller 414 is located beside the V-shaped elastic blocks 415.

The upper rack 7 is provided with a first clamping protrusion 71 connected with the upper rail 3 in a clamping manner, and the upper rail 3 is provided with a first clamping hole 31 matched and clamped with the first clamping protrusion.

To sum up, the utility model discloses in the course of the work, when upper rail 3 and well rail 2 slided on end rail 1, owing to install interlock gear 6 and lower rack 41 and last rack 7 meshing on well rail 2 to this can form the buffering efficiency, and can make well rail 2 and upper rail 3 end rail 1 interlock relatively, still can effectively avoid the unnecessary collision, in order to reach the purpose of reducing the noise.

Of course, the above description is only an exemplary embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes and modifications made by the constructions, features, and principles of the present invention in accordance with the claims of the present invention are intended to be included in the scope of the present invention.

Claims

1. A drawer rail structure, comprising: the device comprises a bottom rail (1), a middle rail (2) sleeved on the bottom rail (1), an upper rail (3) sleeved on the middle rail (2), a lower rack assembly body (4) arranged between the bottom rail (1) and the middle rail (2), an upper linkage wheel carrier (5) arranged between the upper rail (3) and the middle rail (2), a linkage gear (6) arranged on the middle rail (2) and meshed with the lower rack assembly body (4), and an upper rack (7) arranged on the upper rail (3) and meshed with the linkage gear (6), wherein a gear carrier (8) used for fixing the linkage gear (6) is arranged on the middle rail (2), a positioning sliding hook (81) extending and hooking the lower rack assembly body (4) is arranged on the gear carrier (8), a first stroke groove (40) used for the positioning sliding hook (81) to move is arranged in the lower rack assembly body (4), and the middle rail (2) slides relative to the bottom rail (1) and the upper rail (3).

2. A drawer rail structure according to claim 1, wherein: the two side walls of the middle rail (2) are respectively provided with a first positioning groove (21) which is used for installing and positioning the linkage upper wheel frame (5) and guiding the linkage upper wheel frame (5) in a sliding positioning manner, the linkage upper wheel frame (5) is installed on the middle rail (2) in a posture of tightly holding the middle rail (2), the two sides of the linkage upper wheel frame (5) are provided with first rolling balls (51) which are abutted against the first positioning grooves (21), and the two ends of the middle rail (2) are provided with first limiting bulges (22) which are used for limiting the movement of the linkage upper wheel frame (5).

3. A drawer rail structure according to claim 2, wherein: the linkage upper wheel frame (5) is at least provided with two rollers and is positioned at two ends of the wheel frame (8), the linkage upper wheel frame (5) is positioned between the upper rack (7) and the middle rail (2), the linkage upper wheel frame (5) is further provided with a plurality of first rollers (52) which are positioned between the upper rail (3) and the middle rail (2) and are contacted and pressed, and the linkage upper wheel frame (5) is further provided with a first stroke step (53) for the upper rack (7) to move.

4. A drawer rail structure according to claim 1, wherein: the bottom rail (1) is bent to form an L-shaped guide rail portion (11) for mounting the lower rack assembly body (4), the lower rack assembly body (4) comprises a lower rack (41) which is slidably mounted on the L-shaped guide rail portion (11) and at least two linkage lower wheel frames (42) which are slidably arranged on the lower rack (41) and are tightly hooked on the L-shaped guide rail portion (11), and first sliding grooves (421) which are used for being buckled on the L-shaped guide rail portion (11) are formed in the linkage lower wheel frames (42).

5. A drawer rail structure according to claim 4, wherein: a plurality of second rollers (422) used for abutting against the L-shaped guide rail part (11) and the middle rail (2) are arranged on two sides of the first sliding groove (421), and guide rollers (423) which are respectively connected with the side walls of the bottom rail (1) and the side wall of the middle rail (2) on two sides are further installed on the linkage lower wheel carrier (42).

6. A drawer rail structure according to claim 5, wherein: two ends of the lower rack (41) are respectively provided with a first mounting groove (411) for mounting the linkage lower wheel carrier (42), two sides of the first mounting groove (411) are provided with first supporting blocks (412) for supporting the linkage lower wheel carrier (42), and the first supporting blocks (412) are provided with first clamping wedge blocks (413) for clamping and fastening the linkage lower wheel carrier (42); two sides of the linkage lower wheel frame (42) are provided with buckling grooves (424) used for buckling the first supporting blocks (412), and the side walls of the buckling grooves (424) are provided with first clamping holes (425) matched and clamped with the first clamping wedge blocks (413).

7. The drawer rail structure of claim 6, wherein: the lower rack (41) is L-shaped, the tooth part on the lower rack (41) is positioned at the right-angle joint, the lower rack (41) is further provided with a plurality of third rollers (414) which are used for being pressed against the side wall of the L-shaped guide rail part (11) and the middle rail (2), and the first mounting groove (411) and the third rollers (414) are respectively positioned on two sides of the tooth part.

8. A drawer rail structure according to claim 7, wherein: two ends of the L-shaped guide rail part (11) are provided with second limiting protrusions (12) used for limiting the sliding of the lower rack (41), two ends of the lower rack (41) are provided with V-shaped elastic blocks (415) used for being contacted and pressed with the second limiting protrusions (12), and the third roller (414) is located on the lateral sides of the V-shaped elastic blocks (415).

9. A drawer rail structure according to any one of claims 1 to 8, wherein: the upper rack (7) is provided with a first clamping protrusion (71) in clamping connection with the upper rail (3), and the upper rail (3) is provided with a first clamping hole (31) which is matched and clamped with the first clamping protrusion ().