Double drawer drive mechanism

Abstract

The present invention provides a double-drawer driving mechanism, comprising a transmission device and a driving device, the transmission device comprising an upper guide rail and a lower guide rail, the driving device comprising an upper driving motor, a lower driving motor, an upper front transmission group, a lower front transmission group, an upper main transmission group, a lower main transmission group, an upper synchronous linkage group, and a lower synchronous linkage group, the upper driving motor and the lower driving motor are respectively rear-placed at the upper drawer and are respectively installed on the left and right sides of a cabinet, thereby reducing the space of the double-layer drawer, not increasing the load of the upper guide rail and the lower guide rail of the transmission device, and cooperating with the structure of the upper front transmission group, the lower front transmission group, the upper main transmission group, the lower main transmission group, the upper synchronous linkage group, and the lower synchronous linkage group, the structure is simple, synchronous operation is enhanced, noise is reduced, structural stability is improved, and the use quality of the product is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of slide rails, in particular to a double-drawer driving mechanism. Background Art

[0002] Slide rails are mainly used for opening and closing drawers of furniture and electrical appliances. They are installed between drawers and cabinets. Most existing slide rails are manual, and users apply pulling or pushing force to open and close drawers. However, when the drawer is overloaded, users need to apply greater pulling or pushing force, which is laborious and easy to damage the slide rail, reducing the service life of the product.

[0003] Therefore, there are electric slides driven by motors on the market, which can realize automatic pushing and pulling of drawers. The electric slides mainly use the motor to drive the gear along the driving rack to drive the sliding guide bracket and the sliding guide to move horizontally.

[0004] However, the electric slide rail of the above structure has the following shortcomings in practical application:

[0005] 1) The traditional slide rail drive motor is fixed between the fixed guide rail and the fixed guide rail bracket, which is particularly used in double-layer drawers. It has many structural components, occupies a large space, and greatly reduces the drawer volume.

[0006] 2) Double-layer drawers use traditional drive devices, which increases the load on the slide rails and reduces the performance of the slide rails.

[0007] 3) Double-layer drawers use traditional drive devices, which have poor synchronization performance, complex structure and high assembly requirements.

[0008] 4) Double-layer drawers use traditional drive devices, which are prone to shaking and making loud noises, reducing the user experience. Summary of the invention

[0009] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a double-drawer drive mechanism which has a simple structure, occupies less space, strengthens synchronous operation, reduces noise, improves structural stability, and ensures the quality of product use.

[0010] The invention object of the present invention is achieved as follows: a double-drawer driving mechanism, comprising a transmission device and a driving device installed between a cabinet and a drawer, wherein the transmission device comprises an upper guide rail installed on the left and right sides of an upper drawer and a lower guide rail installed on the left and right sides of a lower drawer, wherein the driving device comprises an upper driving motor, a lower driving motor, an upper front transmission group, a lower front transmission group, an upper main transmission group, a lower main transmission group, an upper synchronous linkage group, and a lower synchronous linkage group,

[0011] The upper drive motor and the lower drive motor are respectively arranged at the rear of the upper drawer and are respectively installed on the left and right sides of the cabinet body; the upper front transmission group and the upper main transmission group are respectively connected to the upper fixed rail of the upper guide rail by front and rear axles; the lower front transmission group and the lower main transmission group are respectively connected to the lower fixed rail of the lower guide rail by front and rear axles;

[0012] The upper movable rail of the upper guide rail and the lower movable rail of the lower guide rail are respectively equipped with an upper transmission rack and a lower transmission rack meshingly connected with the upper front transmission group and the lower front transmission group;

[0013] The upper front transmission group and the upper main transmission group are respectively meshed and connected with the output shaft of the upper drive motor through the upper synchronous linkage group.

[0014] The lower front transmission group and the lower main transmission group are respectively meshed and connected with the output shaft of the lower driving motor through the lower synchronous linkage group.

[0015] According to the above optimization, the cabinet is provided with a support frame, which is respectively arranged on the left and right inner sides of the cabinet and fixedly installed on the fixed rail of the upper guide rail, and the upper drive motor and the lower drive motor can be disassembled and assembled on the corresponding support frames, and the upper and lower synchronous linkage groups and the lower synchronous linkage groups are connected to the support frames.

[0016] According to the above optimization, the upper synchronous linkage group includes an upper synchronous belt, an upper synchronous connecting rod, an upper driving belt, and an upper synchronous gear. The upper synchronous belt is respectively meshed and connected to the upper front transmission group and the upper main transmission group. The upper synchronous gears are respectively axially connected to the rear of the upper drive motor and the lower drive motor. The upper driving belt is respectively meshed and connected to the upper synchronous gear and the upper main transmission group. The upper synchronous belt is respectively meshed and connected to the upper front transmission group and the upper synchronous gear. The upper synchronous gears are respectively inserted at both ends of the upper synchronous connecting rod.

[0017] According to the above optimization, the upper front transmission group includes an upper front transmission gear and an upper front bracket. The upper front bracket is respectively installed on the front ends of the fixed rails of the upper guide rails on the left and right sides. The upper front transmission gear shaft is connected to the upper front bracket and is connected to the upper synchronous gear through an upper synchronous belt.

[0018] According to the above optimization, the upper main transmission group includes an upper main gear, which is installed on the output shaft of the upper drive motor and connected to the upper synchronous gear on the right side through an upper synchronous belt.

[0019] According to the above optimization, the lower-layer synchronous linkage group includes a lower-layer synchronous belt, a lower-layer synchronous connecting rod, a lower-layer driving belt, a lower-layer synchronous gear, a linkage gear, and a linkage belt. The lower-layer synchronous gear is respectively axially connected to the rear of the upper drive motor and the lower drive motor and is connected to the lower-layer main transmission group through the lower-layer driving belt. The linkage gear is connected to the rear end of the lower fixed rail of the lower guide rail on the left and right sides through the lower-layer rear bracket shaft. The linkage belt is respectively meshed with the linkage gear and the lower-layer synchronous gear. The lower-layer synchronous belt is respectively meshed with the lower-layer front transmission group and the linkage gear, and the lower-layer synchronous connecting rod is respectively inserted with lower-layer synchronous gears at both ends.

[0020] According to the above optimization, the lower front transmission group includes a lower front gear and a lower front bracket. The lower front bracket is respectively installed on the front end of the lower fixed rail of the lower guide rail on the left and right sides. The lower front gear shaft is connected to the lower front bracket and is connected to the linkage gear through the lower synchronous belt.

[0021] According to the above optimization, the lower main transmission group includes a lower main gear, which is installed on the output shaft of the lower drive motor and connected to the lower synchronous gear on the left side through the lower active belt.

[0022] According to the above optimization, the upper drive motor and the lower drive motor are respectively set as stepping motors.

[0023] The advantages of the present invention are:

[0024] 1) The upper drive motor and the lower drive motor are respectively placed at the rear of the upper drawer and assembled on the left and right sides of the cabinet, which reduces the space of the double-layer drawer, does not increase the load of the upper guide rail and the lower guide rail of the transmission device, and improves the structural stability of the transmission device.

[0025] 2) The structure of the upper synchronous linkage group and the lower synchronous linkage group is adopted to improve the synchronous operation of the drive device. At the same time, the upper synchronous connecting rod and the lower synchronous connecting rod are plug-in, which can achieve fast assembly and disassembly, easy operation, and ensure the quality of the double-layer drawer.

[0026] 3) Use the upper synchronous belt, the lower synchronous belt, the upper drive motor, and the lower drive motor to enhance synchronous operation, improve transmission stability, reduce noise generation, and ensure the user experience of the double-layer drawer. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Attached Figure 1 This is a schematic diagram of the installation of a preferred embodiment of the present invention (without the cabinet).

[0028] Attached Figure 2 It is a structural schematic diagram of a preferred embodiment of the present invention.

[0029] Attached Figure 3It is a structural schematic diagram of another angle of a preferred embodiment of the present invention.

[0030] Attached Figure 4 This is an assembly and use diagram of a preferred embodiment of the present invention (with the drawer panel disassembled). DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the accompanying drawings.

[0032] According to the attached Figures 1 to 4 As shown, the double-drawer driving mechanism of the present invention comprises a transmission device and a driving device installed between a cabinet and a drawer, wherein the transmission device comprises an upper guide rail 1 installed on the left and right sides of an upper drawer and a lower guide rail 2 installed on the left and right sides of a lower drawer. The driving device comprises an upper driving motor 3, a lower driving motor 4, an upper front transmission group 5, a lower front transmission group 6, an upper main transmission group 7, a lower main transmission group 8, an upper synchronous linkage group 9, and a lower synchronous linkage group 10.

[0033] Among them, the upper drive motor 3 and the lower drive motor 4 are respectively rear-placed on the upper drawer and installed on the left and right sides of the cabinet, respectively; the upper front transmission group 5 and the upper main transmission group 7 are respectively connected to the upper fixed rail of the upper guide rail 1 by their front and rear axes; the lower front transmission group 6 and the lower main transmission group 8 are respectively connected to the lower fixed rail of the lower guide rail 2 by their front and rear axes.

[0034] In the optimized solution, the cabinet is provided with a support frame 13, which is respectively arranged on the left and right inner sides of the cabinet and fixedly installed on the fixed rail of the upper guide rail 1. The upper drive motor 3 and the lower drive motor 4 can be disassembled and assembled on the corresponding support frame 13, and the upper synchronous linkage group 9 and the lower synchronous linkage group 10 are connected to the support frame 13 with upper and lower axes.

[0035] In this way, the upper drive motor 3 and the lower drive motor 4 are installed rearwardly by using the support frame 13, which reduces the space of the double-layer drawer, does not increase the load of the upper guide rail 1 and the lower guide rail 2 of the transmission device, and improves the structural stability of the transmission device.

[0036] Reference Figures 1 to 4 As shown, the upper movable rail of the upper guide rail 1 and the lower movable rail of the lower guide rail 2 are respectively equipped with an upper transmission rack 11 and a lower transmission rack 12 meshingly connected with the upper front transmission group 5 and the lower front transmission group 6. The upper front transmission group 5 and the upper main transmission group 7 are respectively meshingly connected with the output shaft of the upper drive motor 3 through the upper synchronous linkage group 9, and the lower front transmission group 6 and the lower main transmission group 8 are respectively meshingly connected with the output shaft of the lower drive motor 4 through the lower synchronous linkage group 10.

[0037] In the optimization scheme, the upper synchronous linkage group 9 includes an upper synchronous belt 91, an upper synchronous connecting rod 92, an upper driving belt 93, and an upper synchronous gear 94. The upper synchronous belt 91 is respectively meshed and connected to the upper front transmission group 5 and the upper main transmission group 7, and the upper synchronous gear 94 is respectively axially connected to the rear of the upper drive motor 3 and the lower drive motor 4. The upper driving belt 93 is respectively meshed and connected to the upper synchronous gear 94 and the upper main transmission group 7. The upper synchronous belt 91 is respectively meshed and connected to the upper front transmission group 5 and the upper synchronous gear 94, and the upper synchronous gear 94 is respectively inserted at both ends of the upper synchronous connecting rod 92.

[0038] Among them, the upper front transmission group 5 includes an upper front transmission gear 51 and an upper front bracket 52. The upper front bracket 52 is respectively installed on the front end of the fixed rail of the upper guide rail 1 on the left and right sides. The upper front transmission gear 51 is axially connected to the upper front bracket 52 and is connected to the upper synchronous gear 94 through the upper synchronous belt 91.

[0039] Furthermore, the upper main transmission group 7 includes an upper main gear 71 , which is mounted on the output shaft of the upper drive motor 3 and connected to the upper synchronous gear 94 on the right side through an upper synchronous belt 91 .

[0040] Reference Figures 1 to 4 As shown, in further detail, the lower synchronous linkage group 10 includes a lower synchronous belt 101, a lower synchronous connecting rod 102, a lower driving belt 103, a lower synchronous gear 104, a linkage gear 105, and a linkage belt 106. The lower synchronous gear 104 is respectively connected to the rear of the upper drive motor 3 and the lower drive motor 4 and is connected to the lower main transmission group 8 through the lower driving belt 103. The linkage gear 105 is connected to the rear end of the lower fixed rail of the lower guide rail 2 on the left and right sides through the lower rear bracket shaft. The linkage belt 106 is respectively meshed with the linkage gear 105 and the lower synchronous gear 104. The lower synchronous belt 101 is respectively meshed with the lower front transmission group 6 and the linkage gear 105. The lower synchronous gears 104 are respectively inserted at both ends of the lower synchronous connecting rod 102.

[0041] The lower front transmission group 6 includes a lower front gear 61 and a lower front bracket 62. The lower front bracket 62 is respectively installed at the front end of the lower fixed rail of the lower guide rail 2 on the left and right sides, and the lower front gear 61 is axially connected to the lower front bracket 62 and connected to the linkage gear 105 through the lower synchronous belt 101.

[0042] Furthermore, the lower main transmission group 8 includes a lower main gear 81 , which is mounted on the output shaft of the lower driving motor 4 and connected to the lower synchronous gear 104 on the left side through a lower active belt 103 .

[0043] In summary, the structure of the upper synchronous linkage group 9 and the lower synchronous linkage group 10 is adopted to improve the synchronous operation performance of the drive device. At the same time, the upper synchronous connecting rod 92 and the lower synchronous connecting rod 102 are plug-in, which can achieve fast assembly and disassembly, easy operation, and ensure the quality of the double-layer drawer.

[0044] In addition, the upper drive motor 3 and the lower drive motor 4 are respectively set as stepping motors. The upper synchronous belt 91, the lower synchronous belt 101, the upper drive motor 3 and the lower drive motor 4 are used to enhance synchronous operation, improve transmission stability, reduce noise generation, and ensure the use experience of the double-layer drawer.

[0045] The above specific embodiments are only specific implementation methods with better effects of the present invention. All structures that are the same or equivalent to the double-drawer driving mechanism of the present invention are within the protection scope of the present invention.

Claims

1. A double drawer drive mechanism, comprising a transmission device and a drive device installed between a cabinet and a drawer, wherein the transmission device comprises an upper guide rail (1) installed on the left and right sides of an upper drawer and a lower guide rail (2) installed on the left and right sides of a lower drawer, characterized in that: The driving device comprises an upper driving motor (3), a lower driving motor (4), an upper front transmission group (5), a lower front transmission group (6), an upper main transmission group (7), a lower main transmission group (8), an upper synchronous linkage group (9), and a lower synchronous linkage group (10). The upper drive motor (3) and the lower drive motor (4) are respectively arranged at the rear of the upper drawer and are respectively installed on the left and right sides of the cabinet; the upper front transmission group (5) and the upper main transmission group (7) are respectively connected to the upper fixed rail of the upper guide rail (1) by front and rear axles; the lower front transmission group (6) and the lower main transmission group (8) are respectively connected to the lower fixed rail of the lower guide rail (2) by front and rear axles; The upper movable rail of the upper guide rail (1) and the lower movable rail of the lower guide rail (2) are respectively provided with an upper transmission rack (11) and a lower transmission rack (12) meshingly connected with the upper front transmission group (5) and the lower front transmission group (6); The upper front transmission group (5) and the upper main transmission group (7) are respectively meshed and connected with the output shaft of the upper drive motor (3) through the upper synchronous linkage group (9). The lower front transmission group (6) and the lower main transmission group (8) are respectively meshed and connected with the output shaft of the lower drive motor (4) through the lower synchronous linkage group (10).

2. The double drawer drive mechanism according to claim 1, characterized in that: The cabinet is provided with a support frame (13), which is respectively arranged on the left and right inner sides of the cabinet and fixedly mounted on the fixed rail of the upper guide rail (1); the upper drive motor (3) and the lower drive motor (4) can be detached and assembled on the corresponding support frame (13); and the upper and lower axes of the upper synchronous linkage group (9) and the lower synchronous linkage group (10) are connected to the support frame (13).

3. The double drawer drive mechanism according to claim 1 or 2, characterized in that: The upper synchronous linkage group (9) comprises an upper synchronous belt (91), an upper synchronous connecting rod (92), an upper driving belt (93), and an upper synchronous gear (94); the upper synchronous belt (91) is respectively meshed and connected to the upper front transmission group (5) and the upper main transmission group (7); the upper synchronous gear (94) is respectively axially connected to the rear of the upper drive motor (3) and the lower drive motor (4); the upper driving belt (93) is respectively meshed and connected to the upper synchronous gear (94) and the upper main transmission group (7); the upper synchronous belt (91) is respectively meshed and connected to the upper front transmission group (5) and the upper synchronous gear (94); and the upper synchronous gear (94) is respectively inserted into the two ends of the upper synchronous connecting rod (92).

4. The double drawer drive mechanism according to claim 3, characterized in that: The upper front transmission group (5) comprises an upper front transmission gear (51) and an upper front bracket (52). The upper front bracket (52) is respectively mounted on the front ends of the fixed rails of the upper guide rails (1) on the left and right sides. The upper front transmission gear (51) is axially connected to the upper front bracket (52) and is connected to the upper synchronous gear (94) via an upper synchronous belt (91).

5. The double drawer drive mechanism according to claim 3, characterized in that: The upper main transmission group (7) comprises an upper main gear (71), which is mounted on the output shaft of the upper drive motor (3) and connected to the upper synchronous gear (94) on the right side via an upper synchronous belt (91).

6. The double drawer drive mechanism according to claim 1 or 2, characterized in that: The lower synchronous linkage group (10) comprises a lower synchronous belt (101), a lower synchronous connecting rod (102), a lower driving belt (103), a lower synchronous gear (104), a linkage gear (105), and a linkage belt (106). The lower synchronous gear (104) is axially connected to the rear of the upper drive motor (3) and the lower drive motor (4) and is connected to the lower main transmission group (8) through the lower driving belt (103). The linkage gear (105) is connected to the rear ends of the lower fixed rails of the lower guide rails (2) on the left and right sides through the lower rear bracket shaft. The linkage belt (106) is meshed with the linkage gear (105) and the lower synchronous gear (104) respectively. The lower synchronous belt (101) is meshed with the lower front transmission group (6) and the linkage gear (105) respectively. The lower synchronous connecting rod (102) is respectively inserted with the lower synchronous gear (104) at both ends.

7. The double drawer drive mechanism according to claim 6, characterized in that: The lower front transmission group (6) comprises a lower front gear (61) and a lower front bracket (62). The lower front bracket (62) is respectively mounted on the front ends of the lower fixed rails of the lower guide rails (2) on the left and right sides. The lower front gear (61) is axially connected to the lower front bracket (62) and is connected to the linkage gear (105) via a lower synchronous belt (101).

8. The double drawer driving mechanism according to claim 6, characterized in that: The lower main transmission group (8) comprises a lower main gear (81), which is mounted on the output shaft of the lower drive motor (4) and connected to the lower synchronous gear (104) on the left side through a lower driving belt (103).

9. The double drawer driving mechanism according to claim 1, characterized in that: The upper drive motor (3) and the lower drive motor (4) are respectively configured as stepping motors.

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