CN215456601U - Improved long-stroke synchronous sliding rail - Google Patents

Abstract

The utility model provides an improved long-stroke synchronous sliding rail, which can enable a drawing body to be completely drawn out of a fixed body, is convenient for taking and placing articles and loading and unloading the drawing body to be clean, and can bring better use experience to users; it includes two sets of slide rail set spares of mutual disposition, every slide rail set spare all includes fixed rail, the movable rail, and the well rail of fixed rail of bridging and movable rail, the cover is equipped with the rack shell outside the fixed rail, the gear is installed to the movable rail, the gear meshes mutually with the rack of rack shell, connect through the synchronizing bar between two gears, slide rail set spare still includes vice rack part and vice rack and draws and erect the part, vice rack part is located the front end of rack, vice rack part includes vice rack, vice rack draws to erect the part and installs in the movable rail, vice rack draws to erect the part and is used for drawing and erects vice rack, make vice rack and rack joint.

Description

Improved long-stroke synchronous sliding rail

Technical Field

The utility model relates to the technical field of sliding rails, in particular to an improved long-stroke synchronous sliding rail.

Background

The three-section sliding rail has the advantages that the middle rail bridging the movable rail and the fixed rail is arranged in the sliding rail assembly, so that compared with a two-section sliding rail, the distance for pulling out a pulling body, such as a drawer, can be increased, and a user can conveniently take and place articles; in order to ensure the synchronous translational motion of the sliding rails on both sides of the drawing body and further improve the smooth and stable pushing and pulling effects of the drawing body, a synchronous mechanism is usually adopted to connect the movable rails in the sliding rails on both sides, for example, a "synchronous drawer sliding rail system with silencing and rebounding functions" published as CN106037297B is respectively provided with a rack on the housing component sleeved outside the fixed rails on both sides, the movable rails on both sides are respectively provided with a gear meshed with the rack, and then the gears on both sides are connected by a synchronous rod structure, i.e., the movable rails on both sides of the drawing body are connected by a rack gear and a synchronous rod structure, so that the synchronous motion of the sliding rails on both sides is realized and the drawing body is stably opened and closed.

Because the installation space between the drawer body and the fixed body is limited, such as the drawer and a cabinet body, the drawer basket and a dishwasher body, the drawer and a refrigerator body, and the like, the length of the rack fixed on the fixed body together with the fixed rail is also limited, when the drawer body is pulled out from the fixed body, the movable rail provided with the meshing gear stops pulling after the gear moves to the front end of the rack, the sliding rail forms three layers of overlapping of the movable rail, the middle rail and the fixed rail at the gear stop section, the movable rail and the fixed rail, the fixed rail and the middle rail or the middle rail and the movable rail cannot be completely opened, namely the stroke of the synchronous rail is limited, so that the sliding rail cannot be completely pulled, and the drawer body cannot be completely pulled out from the fixed body to influence the use.

Disclosure of Invention

Aiming at the defect that the use is influenced because the drawing body cannot be completely drawn out of the fixed body due to the limited stroke of the conventional synchronous rail, the utility model provides the improved long-stroke synchronous rail, which can ensure that the drawing body can be completely drawn out of the fixed body, is convenient for taking and placing articles and loading and unloading the drawing body, and can bring better use experience to users.

The utility model adopts the following technical scheme: it includes two sets of slide rail set spares of mutual disposition, every group slide rail set spare all includes fixed rail, movable rail and bridging the fixed rail with the well rail of movable rail, the fixed rail outside cover is equipped with the rack shell, the gear is installed to the movable rail, the gear with the rack of rack shell meshes mutually, two connect its characterized in that through the synchronizing bar between the gear: the sliding rail assembly further comprises an auxiliary rack component and an auxiliary rack traction erection component, the auxiliary rack component is located at the front end of the rack, the auxiliary rack component comprises an auxiliary rack, the auxiliary rack traction erection component is mounted on the movable rail, and the auxiliary rack traction erection component is used for traction erection of the auxiliary rack so that the auxiliary rack is engaged with the rack.

It is further characterized in that:

the auxiliary rack is rotationally connected with the rack, the auxiliary rack traction erection component is a pushing bearing assembly, the pushing bearing assembly comprises a connecting plate, one end of the connecting plate is mounted on the movable rail, and the other end of the connecting plate is provided with a pushing bearing;

the auxiliary rack component also comprises an auxiliary rack frame arranged at the front end of the rack, the auxiliary rack is slidably arranged on the auxiliary rack frame, the front end of the auxiliary rack frame is provided with a limiting component, the limiting component supports and limits when the auxiliary rack and the rack are jointed, and the auxiliary rack traction frame component is a traction plate;

the front end of the auxiliary rack is provided with a traction column, the rear end of the auxiliary rack is provided with a sliding guide column, and the auxiliary rack frame is provided with a guide groove matched with the sliding guide column; one end of the traction plate is mounted on the movable rail, and the other end of the traction plate is provided with a traction groove matched with the traction column on one side facing the rack;

the traction groove comprises an upper traction groove and a lower traction groove, the upper traction groove is parallel to the stretching direction of the slide rail and penetrates through the front end and the rear end of the traction plate, the lower traction groove comprises an arc groove section and a groove section, the groove section is parallel to the upper traction groove, the front end of the arc groove section is communicated with the groove section, and the rear part of the upper traction groove and the tail end of the arc groove section are communicated with the upper traction groove;

the sliding guide post comprises an upper guide post and a lower guide post, the guide groove comprises an upper guide groove and a lower guide groove, the upper guide groove is matched with the upper guide post, the lower guide groove is matched with the lower guide post, and the upper guide groove and the lower guide groove are horizontal L-shaped guide grooves;

the limiting part is a positioning bracket which is rotatably arranged at the front end of the auxiliary rack frame, and the top end of the positioning bracket is provided with a locking notch matched with the lower guide pillar;

every group the slide rail set spare still is equipped with slide rail resilience mechanism respectively, slide rail resilience mechanism includes resilience main part, slider, dials the piece, damping device and spring, the resilience main part is adorned admittedly in the recess of rack housing bottom, dial the piece install in the movable rail, damping device with the rear end of spring all adorn admittedly in on the resilience main part and damping device with spring parallel arrangement, damping device's damping rod front end, the front end of spring respectively with the slider is connected, the slider install in on the guide structure of resilience main part and can follow the guide structure removes, dial the piece can with thereby the slider forms the cooperation and drives the slider is followed the guide structure removes.

After the structure is adopted, the auxiliary rack component is arranged at the front end of the rack, the auxiliary rack traction erection component is installed on the movable rail, and when the slide rail is stretched, the movable rail drives the auxiliary rack traction erection component to move, so that the auxiliary rack traction erection component pulls and erects the auxiliary rack in the auxiliary rack component to be connected with the rack, the whole length of the rack is prolonged, the stretching distance of the movable rail is increased, the stroke of the slide rail is further increased, the drawing body is completely drawn out of the fixed body, the taking and placing of articles and the loading and unloading and cleaning of the drawing body are facilitated, and better use experience can be brought to users.

Drawings

FIG. 1 is a front view of a first application of the present invention;

FIG. 2 is a schematic view of a closed state of a first application example of the present invention;

FIG. 3 is a schematic view of another closed-state structure of the first application example of the present invention;

FIG. 4 is a schematic view of a first example of the present invention in a stretched state;

fig. 5 is a schematic view of another structure of the first application example in a stretched state.

FIG. 6 is a front view of a second application example of the present invention;

FIG. 7 is a schematic view of a closed state of a second embodiment of the present invention;

FIG. 8 is a schematic view of a closed state of a second embodiment of the present invention;

FIG. 9 is a schematic view of a second embodiment of the present invention in a stretched state;

FIG. 10 is a schematic view of a second embodiment of the present invention in a stretched state;

FIG. 11 is a schematic view of the front and back structures of a traction plate according to a second embodiment of the present invention;

FIG. 12 is a schematic view of the front and back side structures of a secondary rack according to a second embodiment of the present invention;

FIG. 13 is a schematic structural view of a positioning bracket according to a second embodiment of the present invention;

fig. 14 is a schematic structural view of a rack and pinion rack according to a second embodiment of the present invention.

Fig. 15 is an exploded view of the rebound mechanism of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, and particularly, since the synchronous slide rail of the present invention has left-right symmetry, the drawings mainly show the structure or components on one side of the slide rail assembly 1 (or 1') except fig. 1 and 6:

the first application example:

as shown in fig. 1 to 5, the present invention provides an improved long-stroke synchronous slide rail, which includes two sets of slide rail assemblies 1 (2) arranged oppositely, each set of slide rail assembly includes a fixed rail 102 (202), a movable rail 104 (204), and a middle rail 103 (203) bridging the fixed rail and the movable rail, a rack housing 101 (201) is sleeved on the outer side of the fixed rail 102 (202), a gear 105 (205) is installed on the movable rail 104 (204), the gear 105 (205) is engaged with a rack 101a (201 a) of the rack housing 101 (201), the two gears 105, 205 are connected by a synchronous rod 3, the slide rail assembly 1 (2) further includes a secondary rack member and a secondary rack traction erection member, the secondary rack member is located at the front end of the rack 101a (201 a), the secondary rack member includes a secondary rack 107 (207), the secondary rack traction erection member 106 (206) is installed on the movable rail 104 (204), the secondary rack traction member (206) is used for erecting a secondary rack (107), (207), The sub-rack 107 (207) is engaged with the rack 101a (201 a).

As shown in fig. 2 and 3, in the slide rail assembly 1, at the front end of the rack 101a, the secondary rack 107 is rotatably connected with the rack 101a through the rotating shaft 5, as shown in fig. 2 to 5, the secondary rack towing erection member 106 is a pushing bearing assembly, the pushing bearing assembly includes a connecting plate 106a, one end of the connecting plate 106a is mounted on the movable rail 104, and the other end is mounted with a pushing bearing 106 b; when the sliding rail is stretched, the movable rail in the sliding rail assembly 1 (2) respectively drives the connecting plate in the pushing bearing assembly to move forwards, the pushing bearing in the pushing bearing assembly pushes the auxiliary rack to rotate, so that the auxiliary rack is jointed with the rack of the rack shell, when the sliding rail is stretched and stopped, the pushing bearing supports and limits the auxiliary rack at the front end part of the auxiliary rack, so that the whole length of the rack is prolonged, the gear can continuously move forwards along the auxiliary rack when reaching the front end of the rack, and the stretching distance of the movable rail is increased, as shown in fig. 4 and 5, at the moment, two layers of two-layer overlapping of the fixed rail, the middle rail and the movable rail are arranged between the three rails, so that the stroke of the synchronous sliding rail is effectively increased, the drawer body is completely pulled out of the fixed body, the taking and placing of articles and the loading and unloading of the drawer body are convenient, and better use experience can be brought to users.

The second application example:

as shown in fig. 6 to 14, the present invention provides an improved long-stroke synchronous slide rail, which includes two sets of slide rail assemblies 1 ' (2 ') oppositely disposed, each set of slide rail assembly includes a fixed rail 102 (202), a movable rail 104 (204), and a middle rail 103 (203) bridging the fixed rail and the movable rail, a rack housing 101 (201) is sleeved on the outer side of the fixed rail 102 (202), a gear 105 (205) is installed on the movable rail 104 (204), the gear 105 (205) is engaged with a rack 101a (201 a) of the rack housing 101 (201), the two gears 105, 205 are connected by a synchronous rod 3, the slide rail assembly 1 ' (2 ') further includes a secondary rack member and a secondary rack traction erection member, the secondary rack member is located at the front end of the rack 101a (201 a), the secondary rack member includes a secondary rack 107 '), the secondary rack traction erection member 106 ' (206 ') is installed on the movable rail 104 (204), the sub-rack pulling and erecting member 106 '(206') is used for pulling and erecting the sub-rack 107 '(207') so as to engage the sub-rack 107 '(207') with the rack 101a (201 a).

As shown in fig. 6 and 7, the sub-rack member further includes a sub-rack holder 108 '(208') provided at a front end of the rack 101a (201 a), the sub-rack 107 '(207') is slidably attached to the sub-rack holder 108 '(208'), the front end of the sub-rack holder 108 '(208') is provided with a stopper member 109 '(209'), the stopper member 109 '(209') is supported and limited when the sub-rack 107 '(207') is engaged with the rack 101a (201 a), and the sub-rack traction holder member 106 '(206') is a traction plate 106 '(206').

As shown in fig. 7 to 10, 12 and 14 of the sliding rail assembly 1 ', the front end of the secondary rack 107 ' is provided with a traction column 8, the rear end is provided with a sliding guide column, the sliding guide column includes an upper guide column 10 and a lower guide column 9, the secondary rack frame 108 ' is provided with a guide groove matched with the sliding guide column, the guide groove includes an upper guide groove 11 and a lower guide groove 12, the upper guide groove 11 and the lower guide groove 12 are respectively matched with the upper guide column 10 and the lower guide column 9, and both the upper guide groove 11 and the lower guide groove 12 are horizontal L-shaped guide grooves; as shown in fig. 7 and 10, one end of the traction plate 106' is mounted on the movable rail 104, and the other end is provided with a traction groove which is matched with the traction column 8 at the side facing the rack 101 a; as shown in fig. 11, the traction groove includes an upper traction groove 14 and a lower traction groove 16, the upper traction groove 14 is parallel to the rail stretching direction and penetrates the front end and the rear end of the traction plate 106', the lower traction groove 16 includes an arc-shaped groove section 16b and a groove section 16a, the groove section 16a is parallel to the upper traction groove 14, the front end of the arc-shaped groove section 16b is communicated with the groove section 16a, and the rear end of the arc-shaped groove section 16b is communicated with the upper traction groove 14 at the rear part of the upper traction groove 14; as shown in fig. 6 to 10, 13 and 14, the limiting component 109 ' is a positioning bracket 109 ', the positioning bracket 109 ' is rotatably mounted at the front end of the secondary rack 108 ', and the top end of the positioning bracket 109 ' is provided with a locking notch 21 matched with the lower guide post; preferably, the positioning bracket 109 'includes a first side plate 18, a bottom plate 19 and a second side plate 20 which are connected in sequence and are U-shaped, the first side plate 18 and the second side plate 20 are identical in structure and are symmetrically arranged, the upper portion of the first side plate 18 is a two-stage ladder-shaped locking bayonet 21, a first through hole 23 is formed in the lower portion of the first side plate 18, a second through hole 24 is formed in the auxiliary rack 108', the positioning bracket is rotatably connected with the auxiliary rack through the first through hole and the second through hole, and a reset part (not shown) is arranged between the positioning bracket and the auxiliary rack, for example, the reset part may be a torsion spring, an inner concave connecting surface 22 is formed between the locking bayonet 21 and the lower portion of the first side plate 18, and the inner concave connecting surface 22 can avoid interference between the sliding guide column and the positioning bracket when the sliding guide column slides in the guide groove.

Preferably, as shown in fig. 12, the traction column 8 and the sliding guide column are both cylinders, wherein the traction column 8 intersects with the secondary rack 107 ' in a T shape, the upper guide column 10, the lower guide column 9 and the secondary rack 107 ' in the sliding guide column intersect in a cross shape, respectively, and on the same side of the secondary rack 107 ', the length m of the traction column 8, the length x of the lower guide column 9 and the length y of the upper guide column 10 decrease in sequence, that is, m > x > y; as shown in fig. 14, the secondary rack 108 'is a cuboid with a cavity 25 inside, the lower guide groove 12 and the upper guide groove 11 are respectively arranged on two side walls of the secondary rack 108', the secondary rack 107 'is arranged in the cavity 25 of the secondary rack 108', and slides through the upper guide pillar 10 and the lower guide pillar 9 which respectively cross with the secondary rack 107 'and the upper guide groove 11 and the lower guide groove 12 on the two side walls of the secondary rack 108', so that the secondary rack is not only smooth, but also the stability of the joint of the secondary rack and the rack can be improved; as shown in fig. 10 and 12, the upper guide post 10 is flush with the side wall of the secondary rack 108 ', i.e. the length y of the upper guide post 10 is equal to the thickness of the single side wall of the secondary rack 108', on one hand, the stability of the secondary rack can be improved, on the other hand, interference to other parts, such as the rack 101a or the shifting block 4, can be avoided, the lower guide post slightly longer than the upper guide post protrudes out of the side wall of the secondary rack 108 ', and can be stably locked with the locking notch on the positioning bracket, and the traction post slightly longer than the lower guide post can be matched with the traction plate 106' and avoid interference with the secondary rack, as shown in fig. 11, the groove wall 17 of the rear end groove opening of the upper traction groove 14 and the groove wall 15 of the front end groove opening of the lower traction groove 16 are both arc surfaces, which facilitates the sliding-in guidance of the traction post 8.

As shown in fig. 6, when the slide rail is stretched, the movable rail 104 (204) in the slide rail assembly 1 ' (2 ') respectively drives the pulling plate 106 ' (206 ') to move forward, as shown in fig. 7, 9-11, and 14, when the pulling plate 106 ' contacts the pulling post 8 on the secondary rack 107 ', the pulling post 8 slides in from the front end of the lower pulling groove 16 on the pulling plate 106 ', and stops at the corner formed by the communication between the arc-shaped groove section 16b and the groove section 16a sliding into the lower pulling groove 16, and the secondary rack 107 ' is pulled to slide along with the continuous stretching of the movable rail 104, i.e. the secondary rack 107 ' slides along the transverse part 11a of the horizontal L-shaped upper guide slot 11 and the transverse part 12a of the horizontal L-shaped lower guide slot 12 through the upper guide post 10 and the lower guide post 9, respectively, and when the upper guide post 10 slides to the position where the transverse part 11a of the horizontal L-shaped upper guide slot 11 communicates with the longitudinal part 11b, Meanwhile, when the lower guide post 9 slides to the place where the transverse part 12a and the longitudinal part 12b of the horizontal L-shaped lower guide groove 12 communicate with each other, as the traction post 8 slides into the rear part of the upper traction groove 14 along the arc-shaped groove section 16b in the lower traction groove 16 and through the tail end of the arc-shaped groove section 16b communicating with the upper traction groove 14, the upper guide post 10 of the auxiliary rack slides into the longitudinal part 11b of the horizontal L-shaped upper guide groove 11, and the lower guide post 9 also slides into the longitudinal part 12b of the horizontal L-shaped lower guide groove 12, during the sliding process, the second step convex part 21a in the two step-shaped locking notch 21 on the positioning bracket 109 'acted by the lower guide post 9 pushes the positioning bracket 109' to rotate, and locks the lower guide post 9 on the locking notch 21 and in the longitudinal part 12b of the horizontal L-shaped lower guide groove 12 under the action of a reset member, such as a tension spring, so that the whole auxiliary rack 107 'protrudes from the auxiliary rack frame 108' and is stably engaged with the rack 101a, and the traction column 8 of the auxiliary rack 107 'slides out from the rear end of the upper traction groove 14 on the traction plate 106', so that the overall length of the rack is prolonged, the gear can continuously move forwards along the auxiliary rack when reaching the front end of the rack, the stretching distance of the movable rail is increased, as shown in fig. 9 and 10, at the moment, two layers of tracks are overlapped between the three tracks of the fixed rail, the middle rail and the movable rail, the stroke of the synchronous slide rail is effectively increased, and then the drawer body can be completely pulled out from the fixed body, so that the taking and placing of articles and the loading and unloading of the drawer body are convenient to clean, and better use experience can be brought to users.

As shown in fig. 3, 8 and 15, in the present invention, each set of slide rail assembly is further provided with a slide rail rebounding mechanism, each slide rail rebounding mechanism includes a rebounding main body 26, a slide block 29, a toggle block 4, a damping device 27 and a spring 28, the rebounding main body 26 is fixedly installed in the groove 6 at the bottom of the rack housing, the toggle block 4 is installed on the movable rail, the rear ends of the damping device 27 and the spring 28 are fixedly installed on the rebounding main body 26, the damping device 27 and the spring 28 are arranged in parallel, the front end of a damping rod of the damping device 27 and the front end of the spring 28 are respectively connected with the slide block 29, the slide block 29 is installed on a guide structure of the rebounding main body 26 and can move along the guide structure, and the toggle block 4 can form a fit with the slide block 29 to drive the slide block 29 to move along the guide structure; the slide rail rebounding mechanism can buffer the push-pull speed of the slide rail, prevent the excessive collision between the pull body and the fixed body, and improve the service life of the pull body and the silencing effect of the slide rail; the detailed structure and installation manner of the slide rail rebounding mechanism can be referred to in patent CN106037297B "synchronous drawer slide rail system with noise reduction rebounding function".

Preferably, as shown in fig. 4 and 10, in the present invention, the front end of the movable rail of each set of slide rail assembly is provided with the buffer block 7, and the rear end of the fixed rail is provided with the chevron-shaped stop block 13, so that on one hand, damage caused by long-term rigid collision between the movable rail, the fixed rail and the middle rail made of metal materials in the stretching and closing processes can be avoided, and on the other hand, vibration and noise can be reduced, so as to improve the silencing effect.

Claims (8)

1. The utility model provides an improve synchronous slide rail of long stroke, its includes two sets of slide rail set spares of mutual disposition, every group slide rail set spare all includes fixed rail, movable rail and bridging the fixed rail with the well rail of movable rail, the fixed rail outside cover is equipped with the rack shell, the gear is installed to the movable rail, the gear with the rack of rack shell meshes mutually, two connect its characterized in that through the synchronizing bar between the gear: the sliding rail assembly further comprises an auxiliary rack component and an auxiliary rack traction erection component, the auxiliary rack component is located at the front end of the rack, the auxiliary rack component comprises an auxiliary rack, the auxiliary rack traction erection component is mounted on the movable rail, and the auxiliary rack traction erection component is used for traction erection of the auxiliary rack so that the auxiliary rack is engaged with the rack.

2. The improved long-stroke synchronous slide rail according to claim 1, wherein: the auxiliary rack is rotatably connected with the rack, the auxiliary rack traction erection component is a pushing bearing component, the pushing bearing component comprises a connecting plate, one end of the connecting plate is mounted on the movable rail, and the other end of the connecting plate is provided with a pushing bearing.

3. The improved long-stroke synchronous slide rail according to claim 1, wherein: the auxiliary rack component further comprises an auxiliary rack frame arranged at the front end of the rack, the auxiliary rack is slidably mounted on the auxiliary rack frame, a limiting component is mounted at the front end of the auxiliary rack frame, the limiting component supports and limits the auxiliary rack when the auxiliary rack is connected with the rack, and the auxiliary rack traction erection component is a traction plate.

4. An improved long stroke synchronous slide rail according to claim 3, wherein: the front end of the auxiliary rack is provided with a traction column, the rear end of the auxiliary rack is provided with a sliding guide column, and the auxiliary rack frame is provided with a guide groove matched with the sliding guide column; one end of the traction plate is mounted on the movable rail, and one side, facing the rack, of the other end of the traction plate is provided with a traction groove matched with the traction column.

5. The improved long-stroke synchronous slide rail according to claim 4, wherein: the traction groove comprises an upper traction groove and a lower traction groove, the upper traction groove is parallel to the stretching direction of the slide rail and penetrates through the front end and the rear end of the traction plate, the lower traction groove comprises an arc groove section and a groove section, the groove section is parallel to the upper traction groove, the front end of the arc groove section is communicated with the groove section, and the rear portion of the upper traction groove, the tail end of the arc groove section and the upper traction groove are communicated.

6. The improved long-stroke synchronous slide rail according to claim 4, wherein: the sliding guide post comprises an upper guide post and a lower guide post, the guide groove comprises an upper guide groove and a lower guide groove, the upper guide groove is matched with the upper guide post, the lower guide groove is matched with the lower guide post, and the upper guide groove and the lower guide groove are horizontal L-shaped guide grooves.

7. The improved long-stroke synchronous slide rail according to claim 6, wherein: the limiting part is a positioning support, the positioning support is rotatably installed at the front end of the auxiliary rack frame, and a locking notch matched with the lower guide pillar is formed in the top end of the positioning support.

8. The improved long-stroke synchronous slide rail according to claim 1, wherein: every group the slide rail set spare still is equipped with slide rail resilience mechanism respectively, slide rail resilience mechanism includes resilience main part, slider, dials the piece, damping device and spring, the resilience main part is adorned admittedly in the recess of rack housing bottom, dial the piece install in the movable rail, damping device with the rear end of spring all adorn admittedly in on the resilience main part and damping device with spring parallel arrangement, damping device's damping rod front end, the front end of spring respectively with the slider is connected, the slider install in on the guide structure of resilience main part and can follow the guide structure removes, dial the piece can with thereby the slider forms the cooperation and drives the slider is followed the guide structure removes.

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