CN115371343A - Slide rail transformation ratio synchronizing mechanism - Google Patents
Slide rail transformation ratio synchronizing mechanism Download PDFInfo
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- CN115371343A CN115371343A CN202211006310.5A CN202211006310A CN115371343A CN 115371343 A CN115371343 A CN 115371343A CN 202211006310 A CN202211006310 A CN 202211006310A CN 115371343 A CN115371343 A CN 115371343A
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- gear
- rack
- slide rail
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- 230000007246 mechanism Effects 0.000 title claims abstract description 25
- 230000009466 transformation Effects 0.000 title claims abstract description 16
- 230000001360 synchronised effect Effects 0.000 claims abstract description 16
- 230000008859 change Effects 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
- F25D25/024—Slidable shelves
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Seats For Vehicles (AREA)
- Transmission Devices (AREA)
Abstract
Slide rail transformation ratio lazytongs, including the symmetry set up last rail, well rail, lower rail, go up rail and well rail sliding connection between well rail and the lower rail, two the adjacent one side of well rail sets up first rack, two the adjacent one side of lower rail sets up the second rack, two rotatably connect transformation ratio lazytongs between the last rail, transformation ratio lazytongs includes the connecting rod and sets up respectively apron, double gear of connecting rod both sides, double gear and apron are connected, double gear partly with first rack toothing, double gear another part and second rack toothing, when pulling out the slide rail the connecting rod drives both sides double gear simultaneously along first rack, second rack roll to realize slide rail both sides simultaneous movement. The sliding rail ratio-changing synchronous mechanism can realize synchronous movement of the upper rail, the middle rail and the lower rail, does not limit the proportion of an upper stroke and a lower stroke, and can adjust the stroke distance and the stroke ratio according to actual use requirements.
Description
Technical Field
The invention relates to the technical field of sliding rails, in particular to a sliding rail transformation ratio synchronizing mechanism.
Background
The existing refrigerator slide rail structures in the market at present adopt single gears or similar structures for transmission, and the transmission ratio among a plurality of slide rails is fixed to be 1:1, so that the movement distance of an upper rail relative to a middle rail is limited to be equal to the movement distance of the middle rail relative to a lower rail when the slide rails move synchronously. When the slide rail is designed, the space limitation and the slide rail stroke limitation in the slide rail structure design are inevitably caused in order to meet the condition, and when the upper transmission ratio is fixed to 1:1, the service life of the slide rail is influenced due to the poor load capacity of the slide rail.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide a slide ratio synchronization mechanism to solve one or more of the problems of the prior art.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a sliding rail ratio-changing synchronous mechanism comprises an upper rail, a middle rail and a lower rail which are symmetrically arranged, wherein the upper rail and the middle rail are in sliding connection with each other, one side of the middle rail adjacent to each other is provided with a first rack, the other side of the lower rail adjacent to each other is provided with a second rack, the two sides of the upper rail are rotatably connected with a ratio-changing synchronous assembly, the ratio-changing synchronous assembly comprises a connecting rod, a cover plate and two gears, the cover plate and the two gears are arranged on two sides of the connecting rod respectively, the two gears are connected with the cover plate, one part of the two gears is meshed with the first rack, the other part of the two gears is meshed with the second rack, when the sliding rail is pulled out, the upper rail drives the ratio-changing synchronous assembly to move along the pulling-out direction, and the connecting rod drives the two gears on two sides to simultaneously roll along the first rack and the second rack so as to realize the synchronous movement of two sides of the sliding rail.
Further, the double gears comprise a first gear meshed with the first rack and a second gear meshed with the second rack, the first gear is connected to the outer side of the second gear, and the diameter of the reference circle of the first gear is smaller than that of the reference circle of the second gear.
Furthermore, at least two back buckles are arranged on the inner side of the second gear, and fixing holes for the back buckles to buckle into are formed in the cover plate.
Further, the first gear and the second gear are integrally formed through injection molding.
Furthermore, the ratio-changing synchronous assembly further comprises a rivet, a second hole for the rivet to penetrate through is formed in the double gear, and a first hole for the rivet to penetrate through is formed in the upper rail.
Furthermore, a third hole for inserting the connecting rod is formed in the inner side of the cover plate.
Furthermore, set up two at least roller groups between last rail and the well rail, set up at least one roller group between well rail and the lower rail.
Furthermore, a pair of first limiting blocks is arranged at the near end of the surface of the middle rail, and a pair of second limiting blocks is arranged at the far end of the surface of the middle rail and used for limiting the roller train to move.
Furthermore, a pair of third limiting blocks is arranged at the near end of the surface of the lower rail and used for limiting the roller group to move.
Furthermore, the roller group comprises an upper retainer and a lower retainer, wherein mounting grooves are respectively formed in the upper retainer and the lower retainer, and rollers are rotatably arranged in the mounting grooves.
Compared with the prior art, the invention has the following beneficial technical effects:
when the box body is pulled out, the box body drives the two upper rails to move from the far end to the near end along the pulling direction, the two upper rails drive the transformation ratio synchronizing assembly to move, a first gear and a second gear of the transformation ratio synchronizing assembly respectively move along a first rack and a second rack, and the first rack and the second rack respectively drive the middle rail and the lower rail to move relative to the upper rail, so that the synchronous movement of the upper rail, the middle rail and the lower rail is realized.
And (II) further, the synchronous movement of the upper rail, the middle rail and the lower rail can be realized, the proportion of an upper stroke and a lower stroke is not limited, and the stroke distance and the ratio of the upper stroke and the lower stroke can be adjusted according to actual use requirements.
And (III) further, on the premise that the space structures and the strokes of the box body and the slide rail can be met, the ratio of the reference circle diameters of the first gear and the second gear to the upper stroke and the lower stroke of the slide rail is adjusted, the larger the ratio of the upper stroke and the lower stroke is, the better the bearing performance of the slide rail is, and the longer the service life of the slide rail is.
Drawings
Fig. 1 is an isometric view of a slide ratio synchronization mechanism provided in accordance with an embodiment of the present invention.
Fig. 2 is a schematic partial structural diagram of a slide rail ratio-changing synchronization mechanism according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram illustrating a pulled-out state of a sliding rail ratio-changing synchronization mechanism according to an embodiment of the present invention.
FIG. 4 is a rear isometric view of a dual gear in a track ratio shifting synchronizing mechanism provided in accordance with a first embodiment of the present invention.
FIG. 5 is a front isometric view of a dual gear in a track ratio shifting synchronizing mechanism provided in accordance with a first embodiment of the present invention.
Fig. 6 is an isometric view of a cover plate in the slide rail ratio varying synchronization mechanism according to an embodiment of the present invention.
Fig. 7 is a vertical view showing a pulled-out state of the sliding rail ratio changing synchronization mechanism according to an embodiment of the present invention.
Fig. 8 shows an enlarged view of a slide rail ratio varying synchronizing mechanism provided in the first embodiment of the present invention at a.
In the drawings, the reference numbers:
1. rail mounting; 11. a first hole; 2. a middle rail; 21. a first stopper; 22. a second limiting block; 23. a limiting wheel; 24. a first extension portion; 241. a first rack; 3. a lower rail; 31. a third limiting block; 32. a second extension portion; 321. a second rack; 4. a roller set; 40. an upper retainer; 41. a lower retainer; 42. mounting grooves; 43. a roller; 5. a ratio-change synchronization component; 51. a double gear; 511. a first gear; 512. a second gear; 5121. back buckling; 513. a second hole; 52. a cover plate; 521. a fixing hole; 522. a third aperture; 53. riveting; 54. a connecting rod.
Detailed Description
To make the objects, features and advantages of the present invention more comprehensible, reference is made to the accompanying drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present invention, so that the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.
In the description of the present invention, it is defined that the terms "central", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In order to describe the structure of the slide rail ratio varying synchronizing mechanism more clearly, the present invention defines the terms "distal end" and "proximal end", specifically, the "distal end" refers to the end away from the pull-out direction of the slide rail during the operation, the "proximal end" refers to the end close to the pull-out direction of the slide rail, taking fig. 1 as an example, the lower end of the upper rail 1 in fig. 1 is the proximal end, and the upper end of the upper rail 1 in fig. 1 is the distal end.
Example one
Referring to fig. 1 and 2, the sliding rail ratio-changing synchronization mechanism includes an upper rail 1, a middle rail 2, and a lower rail 3, which are symmetrically disposed, a box is carried on a surface of the upper rail 1, the upper rail 1 and the middle rail 2, and the middle rail 2 and the lower rail 3 are slidably connected, a first rack 241 is disposed on one side of the two middle rails 2 adjacent to each other, a second rack 321 is disposed on one side of the two lower rails 3 adjacent to each other, a ratio-changing synchronization assembly 5 is rotatably connected between the two upper rails 1, the ratio-changing synchronization assembly 5 includes a connecting rod 54, and a cover plate 52 and a double gear 51 respectively disposed on two sides of the connecting rod 54, the double gear 51 is connected to the cover plate 52, one part of the double gear 51 is engaged with the first rack 241, the other part of the double gear 51 is engaged with the second rack 321, when the sliding rail is pulled out, the upper rail 1 drives the ratio-changing synchronization assembly 5 to move in a pulling-out direction, and the connecting rod 54 drives the double gears 51 to simultaneously roll along the first rack 241 and the second rack 321, so as to realize synchronous movement of the sliding rail.
The specific structure of the ratio-change synchronizing assembly 5 is described below:
referring to fig. 2, 4 and 5, further, the dual gear 51 includes a first gear 511 engaged with the first rack 241 and a second gear 512 engaged with the second rack 321, the first gear 511 is connected to the outside of the second gear 512, and the first gear 511 has a pitch circle diameter D1 smaller than the second gear 512 has a pitch circle diameter D2.
Specifically, on the premise that the first gear 511 and the second gear 512 run the first rack 241 and the second rack 321, an upper stroke S1 of the upper rail 1 moving relative to the middle rail 2 is n × pi × D1, where n represents the number of rotations of the double gear 51, a stroke S of the upper rail 1 moving relative to the lower rail 3 is n × pi × D2, and a lower stroke S2= S-S1= n × pi [ (D2-D1) of the middle rail 2 moving relative to the lower rail 3, where D2> D1. Therefore, the up-down stroke ratio S1: S2= n × pi × D1/(n × pi × D2-n × pi × D1) = D1/(D2-D1), and thus it can be seen that the up-down stroke ratio of the slide rail can be adjusted by changing the size of the pitch circle diameter D1 of the first gear 511 and the pitch circle diameter D2 of the second gear 512.
Referring to fig. 7, when the slide rail is pulled to the farthest position, the load of the upper rail 1 and the box body on the middle rail 2 is G, and the downward supporting force of the lower rail 3 on the middle rail 2 is F1. Referring to fig. 8, G × L1= F1 × L2 is obtained from the lever principle by using a roller 43 at the nearest end above the lower retainer 41 as a first fulcrum, and G2 = G + F1, i.e., F2= G + (G × L1)/L2 is obtained from the farthest end below the lower retainer 41 as a second fulcrum by using a roller 43 at the farthest end under the lower retainer 41 as a second fulcrum, where L1 is the distance from the center of gravity of the load to the first fulcrum, L2 is the length of the lower retainer 41, L2 remains unchanged during the movement process, L1 is the largest when the slide rail is pulled to the farthest end, and F2 is the largest at this time.
Consequently, under the prerequisite that the spatial structure and the stroke of box, slide rail can satisfy, under the unchangeable condition of other characteristics, the upper and lower stroke ratio is big more, and L2 is big more to 2 holding power F2's of rail size in the control makes the bearing effect of well rail 2 just better.
Referring to fig. 4, further, three back buckles 5121 are disposed inside the second gear 512, the cover plate 52 is provided with a fixing hole 521 for the back buckles 5121 to buckle into, and the cover plate 52 is fixedly connected with the second gear 512, so as to be capable of rotating synchronously.
Further, the first gear 511 and the second gear 512 are integrally formed by injection molding.
Referring to fig. 2, further, the ratio-change synchronizing assembly 5 further includes a rivet 53, the double gear 51 defines a second hole 513 through which the rivet 53 passes, the upper rail 1 defines a first hole 11 through which the rivet 53 passes, and the double gear 51 is capable of rotating in an axial direction relative to the rivet 53.
Referring to fig. 2 and 6, further, a third hole 522 is opened at an inner side of the cover plate 52 for inserting the connecting rod 54.
The specific structure of the upper rail 1, the middle rail 2 and the lower rail 3 is described below as follows:
referring to fig. 2, further, the upper rail 1 is a semi-enclosed structure, and two sides of the surface of the middle rail 2 are provided with limiting wheels 23 to prevent the upper rail 1 from separating from the middle rail 2. The inner side of the middle rail 2 is provided with a first extending part 24, and a first rack 241 is arranged on the first extending part 24. The inner side of the lower rail 3 is provided with a second extending part 32, and a second rack 321 is arranged on the second extending part 32.
Referring to fig. 2, the roller assembly 4 further includes an upper holder 40 and a lower holder 41, wherein the upper holder 40 and the lower holder 41 are respectively provided with an installation groove 42, and a roller 43 is rotatably disposed in the installation groove 42.
Referring to fig. 2, further, two upper retainers 40 are disposed between the upper rail 1 and the middle rail 2, and the upper retainers 40 are in a half-enclosed structure. A lower retainer 41 is arranged between the middle rail 2 and the lower rail 3, the lower retainer 41 is of a full-surrounding structure, one part of the lower rail 3 is clamped in the lower retainer 41, and the middle rail 2 surrounds the lower retainer 41 to limit the separation of the middle rail 2 and the lower rail 3.
Referring to fig. 2, further, a pair of first stoppers 21 is disposed at a proximal end of the surface of the middle rail 2, and a pair of second stoppers 22 is disposed at a distal end of the surface of the middle rail 2 for limiting the movement of the upper holder 40.
Referring to fig. 2, further, a pair of third stoppers 31 is disposed at a proximal end of the surface of the lower rail 3 for limiting the movement of the lower holder 41.
The specific workflow of the present invention is described below as follows:
when the box body is pulled out, the box body drives the two upper rails 1 to move from the far end to the near end along the pulling-out direction, the two upper rails 1 drive the transformation ratio synchronization assembly 5 to move along the pulling-out direction, the first gear 511 and the second gear 512 of the transformation ratio synchronization assembly 5 respectively move along the first rack 241 and the second rack 321, the connecting rod 54 drives the first gear 511 and the second gear 512 on the two sides to synchronously move, and the first rack 241 and the second rack 321 respectively drive the middle rail 2 and the lower rail 3 to move relative to the upper rails 1. When the drawing-out is completed, the upper retainer 40 between the upper rail 1 and the middle rail 2 respectively supports against the first limiting block 21 and the second limiting block 22 at the near end, and the lower retainer 41 between the middle gauge and the lower rail 3 supports against the third limiting block 31 at the near end.
When the box body is pushed, the box body drives the two upper rails 1 to move from the near end to the far end along the pushing direction, the two upper rails 1 drive the transformation ratio synchronization assembly 5 to move along the pushing direction, a first gear 511 and a second gear 512 of the transformation ratio synchronization assembly 5 respectively move along a first rack 241 and a second rack 321, the connecting rod 54 drives the first gear 511 and the second gear 512 on the two sides to synchronously move, and the first rack 241 and the second rack 321 respectively drive the middle rail 2 and the lower rail 3 to move relative to the upper rails 1. When the push-in device is completely pushed in, the two upper retainers 40 between the upper rail 1 and the middle rail 2 respectively abut against the first limiting block 21 and the second limiting block 22 at the far end, and the lower retainer 41 between the middle gauge and the lower rail 3 abuts against the third limiting block 31 at the far end.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. Slide rail transformation ratio lazytongs, its characterized in that: including last rail, well rail, the lower rail that the symmetry set up, go up rail and well rail sliding connection between well rail and the lower rail, two the adjacent one side of well rail sets up first rack, two the adjacent one side of lower rail sets up the second rack, two rotatably connect the synchronous subassembly of transformation ratio between the last rail, the synchronous subassembly of transformation ratio includes the connecting rod and sets up respectively apron, double gear of connecting rod both sides, double gear and cover connection, double gear one part and first rack toothing, double gear another part and second rack toothing, when pulling out the slide rail, the last rail drive transformation ratio synchronous subassembly moves along pulling out the direction, the connecting rod drives both sides double gear simultaneously along first rack, second rack roll to realize slide rail both sides synchronous movement.
2. The slide rail ratio change synchronizing mechanism according to claim 1, wherein: the double gears comprise a first gear meshed with the first rack and a second gear meshed with the second rack, the first gear is connected to the outer side of the second gear, and the diameter of the first gear reference circle is smaller than that of the second gear reference circle.
3. The slide rail ratio change synchronizing mechanism according to claim 2, wherein: at least two back buckles are arranged on the inner side of the second gear, and fixing holes for buckling the back buckles are formed in the cover plate.
4. The slide rail ratio changing synchronization mechanism according to claim 2, wherein: the first gear and the second gear are integrally formed through injection molding.
5. The slide rail ratio change synchronizing mechanism according to claim 1, wherein: the ratio-changing synchronous assembly further comprises a rivet, a second hole 513 for the rivet to penetrate through is formed in the double gear, and a first hole for the rivet to penetrate through is formed in the upper rail.
6. The slide rail ratio change synchronizing mechanism according to claim 1, wherein: and a third hole for inserting the connecting rod is formed in the inner side of the cover plate.
7. The slide rail ratio change synchronizing mechanism according to claim 1, wherein: at least two roller groups are arranged between the upper rail and the middle rail, and at least one roller group is arranged between the middle rail and the lower rail.
8. The slide rail ratio change synchronizing mechanism according to claim 7, wherein: the near end of the surface of the middle rail is provided with a pair of first limiting blocks, and the far end of the surface of the middle rail is provided with a pair of second limiting blocks used for limiting the roller train to move.
9. The slide rail ratio change synchronizing mechanism according to claim 7, wherein: and a pair of third limiting blocks is arranged at the near end of the surface of the lower rail and used for limiting the roller group to move.
10. The slide rail ratio change synchronizing mechanism according to claim 7, wherein: the roller group comprises an upper retainer and a lower retainer, wherein the upper retainer and the lower retainer are respectively provided with an installation groove, and a roller is rotatably arranged in the installation groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211006310.5A CN115371343B (en) | 2022-08-22 | 2022-08-22 | Slide rail transformation ratio synchronous mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211006310.5A CN115371343B (en) | 2022-08-22 | 2022-08-22 | Slide rail transformation ratio synchronous mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115371343A true CN115371343A (en) | 2022-11-22 |
| CN115371343B CN115371343B (en) | 2023-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211006310.5A Active CN115371343B (en) | 2022-08-22 | 2022-08-22 | Slide rail transformation ratio synchronous mechanism |
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| Country | Link |
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| CN (1) | CN115371343B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3151357U (en) * | 2008-04-11 | 2009-06-18 | リ・シャオハンＬｉ， Ｓｈａｏｈａｎ | Integrated drawer rail |
| CN112890474A (en) * | 2021-03-30 | 2021-06-04 | 江苏星徽精密科技有限公司 | Synchronous slide rail with silence effect |
| CN215837931U (en) * | 2021-06-22 | 2022-02-18 | 梁巧玲 | Three-section hidden synchronous guide rail |
| US20220082322A1 (en) * | 2018-04-25 | 2022-03-17 | Qingdao Haier Co., Ltd. | Engaging assembly, drawer and refrigerator having the same |
| CN216875636U (en) * | 2022-01-18 | 2022-07-05 | 孙庆娟 | Synchronous sliding rail mechanism and drawer |
-
2022
- 2022-08-22 CN CN202211006310.5A patent/CN115371343B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3151357U (en) * | 2008-04-11 | 2009-06-18 | リ・シャオハンＬｉ， Ｓｈａｏｈａｎ | Integrated drawer rail |
| US20220082322A1 (en) * | 2018-04-25 | 2022-03-17 | Qingdao Haier Co., Ltd. | Engaging assembly, drawer and refrigerator having the same |
| CN112890474A (en) * | 2021-03-30 | 2021-06-04 | 江苏星徽精密科技有限公司 | Synchronous slide rail with silence effect |
| CN215837931U (en) * | 2021-06-22 | 2022-02-18 | 梁巧玲 | Three-section hidden synchronous guide rail |
| CN216875636U (en) * | 2022-01-18 | 2022-07-05 | 孙庆娟 | Synchronous sliding rail mechanism and drawer |
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| Publication number | Publication date |
|---|---|
| CN115371343B (en) | 2023-11-10 |
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