CN106724189B - Three-section type synchronous drawer slide rail - Google Patents
Three-section type synchronous drawer slide rail Download PDFInfo
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- CN106724189B CN106724189B CN201710050734.4A CN201710050734A CN106724189B CN 106724189 B CN106724189 B CN 106724189B CN 201710050734 A CN201710050734 A CN 201710050734A CN 106724189 B CN106724189 B CN 106724189B
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 53
- 230000005540 biological transmission Effects 0.000 claims abstract description 90
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 230000000712 assembly Effects 0.000 claims abstract description 18
- 238000000429 assembly Methods 0.000 claims abstract description 18
- 230000000694 effects Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 210000002421 cell wall Anatomy 0.000 claims 2
- 230000033001 locomotion Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
- A47B88/40—Sliding drawers; Slides or guides therefor
- A47B88/44—Sequencing or synchronisation of drawer slides or functional units
- A47B88/45—Synchronisation of cooperating drawer slides, i.e. with a coordination of the rail movement of different drawer slides
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
- A47B88/40—Sliding drawers; Slides or guides therefor
- A47B88/44—Sequencing or synchronisation of drawer slides or functional units
- A47B88/447—Simultaneous movement of rails within drawer slides, i.e. with a coordination of movement with all rail elements moving at the same time
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B2210/00—General construction of drawers, guides and guide devices
- A47B2210/0002—Guide construction for drawers
- A47B2210/0064—Guide sequencing or synchronisation
- A47B2210/0078—Drawers with parallel guidance or synchronization by pinion-shaft linkages
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
- A47B88/40—Sliding drawers; Slides or guides therefor
- A47B88/49—Sliding drawers; Slides or guides therefor with double extensible guides or parts
- A47B88/493—Sliding drawers; Slides or guides therefor with double extensible guides or parts with rollers, ball bearings, wheels, or the like
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- Drawers Of Furniture (AREA)
Abstract
The invention provides a three-section type synchronous drawer sliding rail which can solve the problems of complex synchronous structure and unreliable synchronous transmission of the existing three-section type synchronous drawer sliding rail. The drawer sliding rail assembly comprises two groups of sliding rail assemblies, wherein the two groups of sliding rail assemblies are respectively arranged on the left side and the right side of a drawer, synchronous assemblies are respectively arranged on the two groups of sliding rail assemblies, and each sliding rail assembly comprises a fixed rail fixedly arranged on the inner side wall of a cabinet body through a fixed rail bracket, a movable rail fixed on the outer side wall of the drawer and a middle rail respectively connected with the fixed rail and the movable rail in a sliding manner; the synchronous components comprise a fixed rail rack, a transmission mechanism and a movable rail rack, the fixed rail rack, the transmission mechanism and the movable rail rack are respectively arranged on the inner side surfaces of the fixed rail, the middle rail and the movable rail, the tooth shapes of the fixed rail rack and the movable rail rack are oppositely arranged, the transmission mechanisms are respectively in transmission connection with the fixed rail rack and the movable rail rack, and the transmission mechanisms of the two groups of synchronous components are synchronously connected through a connecting rod.
Description
Technical Field
The invention relates to the field of sliding rails, in particular to a three-section type synchronous drawer sliding rail.
Background
The synchronization of the existing drawer sliding rails is mostly realized by additionally arranging a synchronization mechanism between the movable rails of the sliding rails at two sides of the drawer, the synchronization mechanism comprises a synchronization connecting rod, racks respectively arranged on the mounting brackets of the sliding rails at two sides of the drawer and synchronization gears respectively arranged on the movable rails of the sliding rails at two sides of the drawer, the two synchronization gears are respectively arranged at two ends of the synchronization connecting rod and meshed and connected to the corresponding racks, and when the drawer is pulled outwards or pushed inwards, the synchronization gears and the racks are driven by the movable rails at two sides and the synchronization connecting rod to synchronously mesh and transmit, so that the synchronous opening or synchronous closing of the sliding rails at two sides of the drawer is realized; however, for the three-section drawer slide rail, the movable rail is slidably connected with the fixed rail through the middle rail, the middle rail can slide relative to the movable rail and the fixed rail respectively in the process of completely opening or completely closing the drawer, and the existing synchronous mechanism which only can realize synchronous movement between the movable rails cannot meet the synchronous requirements of the three-section drawer slide rail with large specification and large bearing under the influence of assembly gaps between the middle rail and the movable rail and between the middle rail and the fixed rail and the influence of drawer bearing. A slide rail arrangement which enables a synchronous movement of the intermediate slide rail has also appeared in the state of the art, as in the invention patent application with publication number CN105407760A, which discloses a pull-out system which enables a synchronous movement of the intermediate rail, the movable rail, with at least one flexible deflecting element 11 being fixed to the holder 12 and the holder 14 at a connection point 13 and a connection point 15, while the flexible deflecting element 11 is deflected approximately 180 ° in the front region around a deflecting roller 16 provided on the intermediate rail 3, with the possibility of sequential control by the flexible deflecting element 11 between the running rail 2, the intermediate rail 3 and the stationary rail 4 ensuring that the running rail 2 moves as fast as twice the speed of the intermediate rail 3 and prevents slipping between the rails, while the two pull-out guides 1 are connected to each other via the flexible deflecting element 11 in the rear region, so that the flexible deflecting element 11 moves together with the two intermediate rails 3 in the rear region, namely, the synchronous movement of the running rails 2 at the two sides is realized; the structure is complex, the overall expansion length of the sliding rail is limited, the expansion length of the sliding rail is directly influenced by the horizontal distance between the retainer 12 and the retainer 14, the longer the horizontal distance between the retainer 12 and the retainer 14 is, the longer the expansion length of the sliding rail is, and the maximum distance between the retainer 12 and the retainer 14 is directly limited by the maximum distance between the deflection roller 16 and the retainer 24, so that the overall expansion length of the sliding rail cannot meet the use requirement of a user; in addition, because it adopts flexible deflection component 11, need manually to adjust the elasticity of flexible deflection component 11 after its integral erection is to the cabinet body to make it can effectively strain the slide rail set of both sides and play synchronous motion's effect, and adjust flexible deflection component 11 again after installing whole pull-out system in the cabinet body, receive the restriction of cabinet body space often can appear adjusting inconvenient problem, thereby can't guarantee that flexible deflection component can adjust in place, just also can't guarantee its synchronous reliability.
Disclosure of Invention
Aiming at the problems, the invention provides a three-section type synchronous drawer sliding rail which can solve the problems that the existing three-section type synchronous drawer sliding rail is complex in structure and short in unfolding length of the sliding rail, and the use requirements of users cannot be met.
Its technical scheme does, the synchronous drawer slide rail of three section formulas, and it includes two sets of sliding rail set spares, two sets of sliding rail set spares are installed in the drawer left and right both sides respectively, install synchronous subassembly on two sets of sliding rail set spares respectively, sliding rail set spares the fixed rail on the internal side wall of cabinet, be fixed in the activity rail on the drawer lateral wall and respectively with fixed rail, activity rail sliding connection's middle rail, its characterized in that through the fixed rail support: the synchronous component comprises a fixed rail rack, a transmission mechanism and a movable rail rack, wherein the fixed rail rack, the transmission mechanism and the movable rail rack are respectively arranged on the inner side surfaces of the fixed rail, the middle rail and the movable rail, the fixed rail rack and the movable rail rack are oppositely arranged in tooth form, the transmission mechanism is respectively in transmission connection with the fixed rail rack and the movable rail rack, and the transmission mechanism of the synchronous component is connected with the connecting rod in a synchronous manner.
Furthermore, the transmission mechanism comprises a transmission rod and two groups of gear transmission structures, a front support and a rear support are fixedly mounted at the front end and the rear end of the inner side surface of the middle rail respectively, a group of gear transmission structures are mounted in the front support and the rear support respectively, the front end and the rear end of the transmission rod are supported by the front support and the rear support respectively and are connected with the two groups of gear transmission structures, and the gear transmission structures can realize the conversion of transmission directions.
Furthermore, the gear transmission structure comprises a gearwheel and a crossed gear pair capable of realizing transmission direction conversion, the crossed gear pair comprises a first gear and a second gear, the gearwheel can be in meshing transmission with the fixed rail rack and the movable rail rack, the first gear is coaxially connected with the gearwheel, the second gear is connected to the end part of the transmission rod in a shaft-to-shaft manner, the first gear is in meshing connection with the second gear, when the sliding rail assembly is completely folded, the movable rail rack is only meshed with the gearwheel in the front support, and the fixed rail rack is only meshed with the gearwheel in the rear support.
Further, the first gear and the second gear are any one of a straight-tooth bevel gear, a helical-tooth bevel gear or a curved-tooth bevel gear which are in meshed transmission connection with each other.
Furthermore, the gearwheel and the first gear of the gear transmission structure arranged in the front bracket are coaxially arranged on a rotating shaft, and the rotating shaft is arranged on the front bracket.
Furthermore, two ends of the connecting rod are respectively connected with the rear supports of the two groups of synchronizing assemblies through connecting shaft sleeves, and the large gear and the first gear which are installed in the rear supports are coaxially installed in the connecting shaft sleeves.
Furthermore, the two ends of the connecting rod are respectively sleeved in the inner holes of the connecting shaft sleeves at the two ends, the connecting rod at one end is axially tightly propped against the inner hole of the corresponding connecting shaft sleeve, and the other end is axially adjustable with the corresponding connecting shaft sleeve and locked by a radial locking screw.
Furthermore, the front support and the rear support are both provided with concave grooves, the notches of the concave grooves face one side face of the cabinet body, the bottom surface of the groove wall on one side of each concave groove is also provided with a limiting groove, and the large gear is axially limited by the limiting grooves.
Furthermore, concentric shaft holes are respectively formed in the front side groove wall and the rear side groove wall of the concave groove of the front support, a second gear is installed in the shaft hole in the front side groove wall, and the transmission rod penetrates through the shaft hole in the rear side groove wall from back to front and then is in shaft connection with the second gear.
Furthermore, an axial through hole concentric with the shaft hole of the front support is formed in the front side groove wall of the concave groove of the rear support, and a second bevel gear in the rear support is installed in the axial through hole and is in shaft connection with the rear end of the transmission rod.
Further, first gear, the second gear of the gear drive pair of intersecting axis are replaced by crown gear, straight-teeth gear respectively, crown gear with gear wheel coaxial coupling, straight-teeth gear coupling in the tip of transfer line, crown gear and straight-teeth gear meshing are connected, work as when slide rail assembly draws in completely the activity rail rack only with gear wheel meshing in the fore-stock, the fixed rail rack only with gear wheel meshing in the after-poppet is connected.
Furthermore, the front end of the front support and the rear end of the rear support are respectively provided with a fixing part, and the fixing parts are fixedly connected with the middle rail.
Furthermore, the rear end of the front support and the front end of the rear support are respectively provided with a clamping hook, the middle rail is provided with a clamping hole, and the clamping hook is hooked in the clamping hole.
The invention has the beneficial effects that:
(1) the synchronous mechanisms of the two groups of slide rail assemblies are connected through the connecting rod simultaneously, and the synchronous motion of the two groups of slide rail assemblies can be realized, so that the accurate synchronous transmission between the two groups of slide rails in the opening or closing process of the drawer is ensured; the transmission mechanism can realize synchronous transmission with the fixed rail and the movable rail through a gear transmission structure which is arranged at the front end and the rear end of the middle rail and can be respectively meshed with the rack of the fixed rail and the rack of the movable rail for transmission and a transmission rod connected with the two groups of gear transmission structures, so the structure is simple;
(2) the gear transmission structure adopts the gear and rack linkage between the large gear and the fixed rail rack and between the movable rail rack respectively and realizes the conversion of the transmission direction through a group of crossed shaft gear pairs so as to achieve the aim of synchronous action of the sliding rail assemblies at two sides, and the transmission is reliable, so that the synchronous transmission among the fixed rail, the middle rail and the movable rail in the sliding rail assemblies can be ensured;
(3) the sliding rail assembly is characterized in that when the sliding rail assembly is completely folded, the movable rail rack is only meshed with the large gear in the front support and cannot be meshed with the large gear in the rear support, and the fixed rail rack is only meshed with the large gear in the rear support and cannot be meshed with the large gear in the front support, namely, when the sliding rail assembly is completely closed, the rear end of the movable rail rack cannot be meshed with the large gear in the rear support, and the fully-unfolded length of the sliding rail can be effectively increased, so that the transmission distance between the large gear and the movable rail rack and between the movable rail and the fixed rail rack can be enlarged to the greatest extent, the stretched and unfolded length between the movable rail and the middle rail as well as between the middle rail and the fixed rail can be enlarged, and the fully-unfolded length of the sliding rail adopting the structure can reach about 1.3 times of the length of the sliding rail body through experimental verification, so that the requirements of users can be met;
(4) the axial is adjustable between the one end of its connecting rod and the connecting axle sleeve that corresponds to can effectively adjust the position between connecting rod and one side slide rail set when connecting rod and both sides slide rail set device, it is not only convenient to adjust, can effectively avoid moreover whole drawer slide rail assemble the cabinet body and adjust the inconvenience that brings again after the drawer.
Drawings
FIG. 1 is a schematic view of a three-section type synchronous drawer slide of the present invention in a fully closed position;
FIG. 2 is a schematic view of the three-section type synchronous drawer slide of the present invention in a fully extended position;
FIG. 3 is an enlarged schematic view of the assembly of the rail assembly and the connecting rod of the three-section type synchronous drawer rail according to the present invention;
FIG. 4 is an enlarged structural view of a first viewing orientation of a first embodiment of a gear drive arrangement in a synchronizing assembly of a three-section synchronizing drawer slide according to the present invention;
FIG. 5 is an enlarged structural view of a second viewing orientation of a first embodiment of a gear drive arrangement in a synchronizing assembly of a three-section synchronizing drawer slide according to the present invention;
FIG. 6 is an enlarged structural view of a second viewing orientation of a second embodiment of a gear drive arrangement in a synchronizing assembly of a three-section synchronizing drawer slide according to the present invention;
FIG. 7 is an enlarged schematic view of a front bracket according to the present invention;
FIG. 8 is an enlarged schematic view of the rear bracket of the present invention;
FIG. 9 is an enlarged view of the middle rail of the present invention;
fig. 10 is a schematic view of the connection of the connecting rod with two sets of slide rail assemblies through connecting bushings at two ends according to the present invention.
Reference numerals: 10-a slide rail assembly; 10' -a slide rail assembly; 11-a fixed rail; 12-a middle rail; 121-clamp hole; 122-card hole; 13-a movable rail; 14-a fixed rail bracket; 20-a synchronization component; 21-fixed rail rack; 22-a transmission mechanism; 221-a transmission rod; 222 a-a gear drive arrangement; 2221-bull gear; 2222-first gear; 2223-second gear; 2224-crown gear; 2225-spur gear; 223-anterior support; 2231-a rotating shaft; 2232-a concave groove; 2233-a limit groove; 2234-shaft hole; 2235-an axial hole; 2236-a fixed part; 2237-hook; 224-posterior scaffold; 2241-a concave groove; 2242-a limit groove; 2243-axial through hole; 2244-a fixed part; 2245-hook; 222 b-a gear drive arrangement; 23-a movable rail rack; 24-a connecting rod; 241-connecting the shaft sleeve; 242-connecting the shaft sleeve; 243-radial locking screw.
Detailed Description
Referring to fig. 1 to 7, the three-section type synchronous drawer slide rail of the present invention comprises two sets of slide rail assemblies 10 and 10 ', wherein the two sets of slide rail assemblies 10 and 10' are respectively installed at the left and right sides of a drawer, the two sets of slide rail assemblies 10 and 10 'are respectively installed with a synchronous assembly 20, the slide rail assemblies 10 and 10' respectively comprise a fixed rail 11 fixedly installed on the inner side wall of a cabinet body through a fixed rail bracket 14, a movable rail 13 fixed on the outer side wall of the drawer, and a middle rail 12 respectively connected with the fixed rail 11 and the movable rail 13 in a sliding manner; the synchronous components comprise a fixed rail rack 21, a transmission mechanism 22 and a movable rail rack 23, the fixed rail rack 21, the transmission mechanism 22 and the movable rail rack 23 are respectively installed on the inner side surfaces of the fixed rail 11, the middle rail 12 and the movable rail 13, the tooth shapes of the fixed rail rack 21 and the movable rail rack 23 are oppositely arranged, the transmission mechanism 22 is respectively in transmission connection with the fixed rail rack 21 and the movable rail rack 23, and the transmission mechanisms 22 of the two groups of synchronous components 20 are synchronously connected through a connecting rod 24.
The transmission mechanism 22 comprises a transmission rod 221 and two groups of gear transmission structures 222a and 222b, a front support 223 and a rear support 224 are fixedly mounted at the front end and the rear end of the inner side surface of the middle rail 12 respectively, the gear transmission structures 222a and 222b are mounted in the front support 223 and the rear support 224 respectively, and the front end and the rear end of the transmission rod 221 are supported by the front support 223 and the rear support 224 respectively and are connected with the two groups of gear transmission structures 222a and 222b respectively.
The two sets of gear transmission structures 222a and 222b have the same structure, taking the gear transmission structure 222a as an example, the gear transmission structure 222a includes a large gear 2221 and a set of intersecting axis gear transmission pairs, each intersecting axis gear transmission pair includes a first gear 2222 and a second gear 2223, the large gear 2221 can be in meshing transmission with the fixed rail rack 21 and the movable rail rack 23, the first gear 2222 is coaxially connected with the large gear 2221, the second gear 2223 is axially connected with the end of the transmission rod 221, and the first gear 2222 is in meshing connection with the second gear 2223; when the sliding rail component 10 is completely folded, the movable rail rack 23 is only meshed with the large gear 2221 in the front support 223 but not meshed with the large gear 2221 in the rear support 224, and the fixed rail rack 21 is only meshed with the large gear 2221 in the rear support 224 but not meshed with the large gear 2221 in the front support 223; the first gear 2222 and the second gear 2223 may be any one of straight-tooth bevel gears, helical bevel gears or curved-tooth bevel gears which are in meshed transmission connection with each other.
The large gear 2221 and the first gear 2222 of the gear transmission structure 222a installed in the front bracket 223 are coaxially installed on the rotating shaft 2231, and the rotating shaft 2231 is installed on the front bracket 223; two ends of the connecting rod 24 are respectively connected with the rear supports 224 of the two groups of synchronizing assemblies 20 through connecting shaft sleeves 241 and 242, and a large gear 2221 and a first gear 2222 which are arranged in the rear supports 224 are coaxially arranged in the connecting shaft sleeves; the two ends of the connecting rod 24 are respectively sleeved in the inner holes of the connecting shaft sleeves 241, 242 at the two ends, wherein the connecting rod 24 at one end is axially abutted against the inner hole of the corresponding connecting shaft sleeve 242, and the other end is axially adjustable with the corresponding connecting shaft sleeve 241 and locked by a radial locking screw 243, as shown in fig. 10.
The front support 223 and the rear support 224 are respectively provided with a concave groove 2232 and a concave groove 2241, the notches of the concave grooves 2232 and 2241 face one side face of the cabinet body, and the bottom surface of the groove wall on one side of the concave grooves 2232 and 2241 is respectively provided with a limiting groove 2233 and a limiting groove 2242 which are used for axially limiting the large gear 2221 of the gear transmission structure arranged in the front support 223 and the rear support 224.
The front and rear side groove walls of the concave groove 2232 of the front bracket 223 are respectively provided with concentric shaft holes 2234 and 2235, the shaft hole 2234 on the front side groove wall is internally provided with a second gear 2223, and the transmission rod 221 passes through the shaft hole 2235 on the rear side groove wall from back to front and then is in shaft connection with the second gear 2223.
An axial through hole 2243 concentric with the shaft holes 2234 and 2235 of the front bracket is formed in the front side wall of the concave groove 2241 of the rear bracket 224, and the second gear 2223 in the rear bracket 224 is installed in the axial through hole 2243 and is coupled with the rear end of the transmission rod 221.
The first gear 2222 and the second gear 2223 of the gear pair with one crossed shaft in the two sets of gear transmission structures can also be replaced by a crown gear 2224 and a spur gear 2225 respectively, as shown in fig. 6, wherein the crown gear 2224 is coaxially connected with the large gear 2221, the spur gear 2225 is axially connected with the end of the transmission rod 221, and the crown gear 2224 is in meshed connection with the spur gear 2225.
The front end of the front bracket 223 and the rear end of the rear bracket 224 are respectively provided with a fixed part 2236 and a fixed part 2244, and the fixed parts 2236 and 2244 are respectively fixedly connected with the middle rail 12; hooks 2237 and 2245 are respectively arranged at the rear end of the front support 223 and the front end of the rear support 224, clamping holes 121 and 122 are arranged on the middle rail 12, and the hooks 2237 and 2245 are respectively hooked in the clamping holes 121 and 122.
The following describes the working process of the present invention specifically: when the drawer is drawn out forwards, the drawer drives the movable rails 13 of the two side rail assemblies 10 and 10' to move forwards, the movable rail racks 23 on the movable rails 13 move forwards synchronously so that the movable rail racks 23 drive the large gears 2221 of the gear transmission structure 222a arranged in the front bracket 223 to rotate, the large gears 2221 rotate and drive the first gears 2222 to rotate simultaneously, then the first gears 2222 drive the second gears 2223 to rotate synchronously, and the second gears 2223, the first gears 2222 and the large gears 2221 in the gear transmission structure 222b arranged in the rear bracket 224 are driven to link through the transmission rod 221, so that the entire intermediate rail 12 linearly advances along the fixed rail rack 21 with the large gear 2221 in the gear train structure 222b, meanwhile, the rotation of the large gear 2221 in the gear transmission structure 222b also drives the other side slide rail assembly to move synchronously through the connecting rod 24 until the drawer is completely opened. The closing action of the drawer is opposite to the opening action.
The three-section type synchronous drawer slide rail can also comprise an automatic recovery mechanism and/or a damping device which are arranged on the fixed rail bracket 14 of the slide rail assembly at one side, so that the convenient use and the service life of the whole drawer slide rail are improved.
Claims (9)
1. Three-section type synchronous drawer slide rail, it includes two sets of slide rail set spare (10, 10 '), two sets of slide rail set spare (10, 10 ') are installed respectively in the drawer left and right both sides, install synchronous subassembly (20) on two sets of slide rail set spare (10, 10 ') respectively, slide rail set spare (10, 10 ') include through fixed rail support (14) adorn fixed rail (11) on the internal side wall of cabinet admittedly, be fixed in activity rail (13) on the drawer lateral wall and respectively with fixed rail (11), activity rail (13) sliding connection's middle rail (12), its characterized in that: the synchronous assembly (20) comprises a fixed rail rack (21), a transmission mechanism (22) and a movable rail rack (23), the fixed rail rack (21), the transmission mechanism (22) and the movable rail rack (23) are respectively installed on the inner side surfaces of the fixed rail (11), the middle rail (12) and the movable rail (13), the tooth shapes of the fixed rail rack (21) and the movable rail rack (23) are oppositely arranged, the transmission mechanism (22) is respectively in transmission connection with the fixed rail rack (21) and the movable rail rack (23), and the transmission mechanisms (22) of the two groups of synchronous assemblies (20) are synchronously connected through a connecting rod (24);
the transmission mechanism (22) comprises a transmission rod (221) and two groups of gear transmission structures (222 a, 222 b), a front bracket (223) and a rear bracket (224) are fixedly mounted at the front end and the rear end of the inner side surface of the middle rail (12) respectively, the gear transmission structures (222 a, 222 b) are mounted in the front bracket (223) and the rear bracket (224) respectively, the front end and the rear end of the transmission rod (221) are supported by the front bracket (223) and the rear bracket (224) respectively and are connected with the two groups of gear transmission structures (222 a, 222 b), and the gear transmission structures (222 a, 222 b) can realize the conversion of transmission directions;
the gear transmission structure (222 a, 222 b) comprises a large gear (2221) and a crossed gear pair capable of realizing transmission direction conversion, the crossed gear pair comprises a first gear (2222) and a second gear (2223), the large gear (2221) can be in meshing transmission with the fixed rail rack (21) and the movable rail rack (23), the first gear (2222) is coaxially connected with the large gear (2221), the second gear (2223) is axially connected with the end part of the transmission rod (221), the first gear (2222) is in meshing connection with the second gear (2223), when the sliding rail assembly (10, 10') is completely folded, the movable rail rack (23) is only meshed with the large gear (2221) in the front bracket (223), and the fixed rail rack (21) is only meshed with the large gear (2221) in the rear bracket (224);
the first gear (2222) and the second gear (2223) are any one of a straight-tooth bevel gear, a helical-tooth bevel gear or a curved-tooth bevel gear which are in meshed transmission connection with each other;
two ends of the connecting rod (24) are respectively connected with the rear supports (224) of the two groups of synchronizing assemblies (20) through connecting shaft sleeves (241, 242), and a large gear (2221) and a first gear (2222) which are arranged in the rear supports (224) are coaxially arranged on the connecting shaft sleeves (241).
2. The three-section synchronous drawer slide of claim 1, wherein: the large gear (2221) and the first gear (2222) of the gear transmission structure (222 a) arranged in the front support (223) are coaxially arranged on a rotating shaft (2231), and the rotating shaft (2231) is arranged on the front support (223).
3. The three-section synchronous drawer slide of claim 1, wherein: two ends of the connecting rod (24) are respectively sleeved in the inner holes of the connecting shaft sleeves (241, 242) at the two ends, wherein one end of the connecting rod (24) is axially tightly propped against the inner hole of the corresponding connecting shaft sleeve (242), and the other end of the connecting rod is axially adjustable with the corresponding connecting shaft sleeve (241) and is locked by a radial locking screw (243).
4. The three-section synchronous drawer slide of claim 1, wherein: front bracket (223), after-poppet (224) are equipped with concave groove (2232, 2241) respectively, the notch of concave groove (2232, 2241) is towards cabinet body side, the bottom surface of one side cell wall of concave groove (2232, 2241) still is equipped with a spacing groove (2233, 2242), gear wheel (2221) by spacing groove (2233, 2242) axial is spacing.
5. The three-section synchronous drawer slide of claim 4, wherein: the front and rear side groove walls of the concave groove (2232) of the front bracket (223) are respectively provided with concentric shaft holes (2234, 2235), a second gear (2223) is installed in the shaft hole (2234) on the front side groove wall, and the transmission rod (221) passes through the shaft hole (2235) on the rear side groove wall from back to front and then is in shaft connection with the second gear (2223).
6. The three-section synchronous drawer slide of claim 5, wherein: set up on the front side cell wall of the concave groove (2241) of back support (224) with the concentric axial through hole (2243) of shaft hole (2234, 2235) of front support, second gear (2222) in back support (224) install in axial through hole (2243) and with the rear end coupling of transfer line (221).
7. The three-section synchronous drawer slide according to any one of claims 1 to 6, wherein: first gear (2222), second gear (2223) of looks pinion pair are replaced by crown gear (2224), straight-teeth gear (2225) respectively, crown gear (2224) with gear wheel (2221) coaxial coupling, straight-teeth gear (2225) hub connection in the tip of transfer line (221), crown gear (2221) and straight-teeth gear (2225) meshing connection, when slide rail component draws in completely the activity rail rack (23) only with gear wheel (2221) meshing in front bracket (223), fixed rail rack (21) only with gear wheel (2221) meshing connection in rear bracket (224).
8. The three-section synchronous drawer slide of claim 7, wherein: the front end of fore-stock (223), the rear end of after-poppet (224) are equipped with fixed part (2236, 2244) respectively, fixed part (2236, 2244) with middle rail (12) rigid coupling.
9. The three-section synchronous drawer slide of claim 8, wherein: the rear end of fore-stock (223), the front end of after-stock (224) are equipped with pothook (2237, 2245) respectively, the preceding, the rear side of middle rail (12) are opened respectively and are had card hole (121), pothook (2237, 2245) collude in card hole (121).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710050734.4A CN106724189B (en) | 2017-01-23 | 2017-01-23 | Three-section type synchronous drawer slide rail |
| PCT/CN2017/101672 WO2018133431A1 (en) | 2017-01-23 | 2017-09-14 | Three-section synchronized drawer slide rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710050734.4A CN106724189B (en) | 2017-01-23 | 2017-01-23 | Three-section type synchronous drawer slide rail |
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| CN106724189A CN106724189A (en) | 2017-05-31 |
| CN106724189B true CN106724189B (en) | 2022-06-10 |
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Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106724189B (en) * | 2017-01-23 | 2022-06-10 | 无锡海达尔精密滑轨股份有限公司 | Three-section type synchronous drawer slide rail |
| CN107970515A (en) * | 2017-11-22 | 2018-05-01 | 青岛市中心医院 | A kind of gastrointestinal surgery catheter anchoring system |
| CN108106318B (en) * | 2017-12-28 | 2024-12-13 | 海尔智家股份有限公司 | Synchronous mechanism for slide rail, drawer component and refrigerator having the same |
| CN108106315B (en) * | 2017-12-28 | 2021-07-23 | 海尔智家股份有限公司 | Synchronization mechanism for sliding rails and drawer parts and refrigerators having the same |
| CN108916226B (en) * | 2018-08-24 | 2023-08-18 | 无锡海达尔精密滑轨股份有限公司 | Three-section synchronous slide rail |
| EP3893695B1 (en) | 2018-12-11 | 2023-09-13 | Samet Kalip Ve Madeni Esya San. Ve Tic. A.S. | Drawer extraction guide |
| CN112127746B (en) * | 2019-06-24 | 2023-04-18 | 青岛海尔电冰箱有限公司 | Door body driving device and refrigerator |
| CN110693215A (en) * | 2019-09-30 | 2020-01-17 | 中国科学院苏州生物医学工程技术研究所 | Drawer device for taking and placing TIP (TIP in Place) box |
| CN112167860A (en) * | 2020-10-10 | 2021-01-05 | 无锡海达尔精密滑轨股份有限公司 | Long stroke synchronous rail |
| KR102502477B1 (en) * | 2020-12-10 | 2023-02-23 | (주)세고스 | Pull-out system |
| CN113180394B (en) * | 2021-03-29 | 2025-04-08 | 无锡海达尔精密滑轨股份有限公司 | Improved long-stroke synchronous slide rail |
| CN112890474B (en) * | 2021-03-30 | 2024-04-09 | 江苏玖星精密科技集团有限公司 | Synchronous slide rail with silence effect |
| CN113208318A (en) * | 2021-04-16 | 2021-08-06 | 无锡海达尔精密滑轨股份有限公司 | Ball slide rail and subassembly thereof |
| CN113397321A (en) * | 2021-06-29 | 2021-09-17 | 合肥爱纳吉医学科技发展有限公司 | Intelligent vaccine cabinet and drawer unit based on synchronous slide rail |
| CN113558410B (en) * | 2021-08-05 | 2024-10-29 | 无锡海达尔精密滑轨股份有限公司 | Sliding rail assembly |
| CN113413029A (en) * | 2021-08-05 | 2021-09-21 | 江苏星徽精密科技有限公司 | Synchronous operation device for synchronous slide rail |
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| Publication number | Publication date |
|---|---|
| WO2018133431A1 (en) | 2018-07-26 |
| CN106724189A (en) | 2017-05-31 |
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