Cabinet door power system
By using a stepper motor to drive a synchronous belt and gear transmission system, the problem of poor synchronization of traditional duplex cabinet doors is solved, realizing the synchronous movement of the left and right cabinet doors, simplifying installation and reducing costs.
Patent Information
- Application Number
- CN202520139957.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Traditional duplex cabinets have poor synchronization between the left and right cabinet doors, and using two motors increases production costs and installation complexity.
A stepper motor is used to achieve synchronous movement of the left and right cabinet doors through a synchronous belt and gear transmission system. The stepper motor drives the pinion gear to drive the driven wheel and synchronous belt, realizing two-stage speed reduction and saving costs.
This ensures the synchronization of the left and right cabinet doors, simplifies the installation process, reduces production costs, and improves practicality.
Smart Images

Figure CN223838904U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a power system, specifically a cabinet door power system. Background Technology
[0002] Traditional duplex cabinets have their left and right doors driven by two separate motors, resulting in poor synchronization. Furthermore, using two motors increases production costs and installation complexity. Therefore, this invention designs a cabinet door power system controlled by a single stepper motor. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a cabinet door power system with simple structure, convenient installation, ensuring the synchronization of the left and right cabinet doors, saving costs and being highly practical.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a cabinet door power system, comprising a left-side transmission system and a right-side transmission system. The double-longitudinal opening linkage shaft of the left-side transmission system and the double-longitudinal opening linkage shaft of the right-side transmission system are fixedly connected by screws. The structure of the left-side system is similar to that of the right-side transmission system. The right-side transmission system includes a double-cabinet door stepper motor, which is fixed to a base on the right belt of the double-cabinet door. A double-driven wheel spur gear and a double-cabinet door pulley gear are provided in the U-shaped groove of the base on the right belt of the double-cabinet door. The double-driven wheel spur gear and the double-cabinet door pulley gear are fixed by a cross-slot pan head screw. The double-driven wheel spur gear also meshes with a pinion gear on the double-cabinet door stepper motor. A first bearing and a double-driven wheel spur gear are sequentially threaded through the double-longitudinal opening linkage shaft. The driven wheel has spur teeth, the double cabinet door pulley teeth, and the center of the first bearing. A shaft-type snap ring is installed on the outer end of the double longitudinally opening linkage shaft. The timing belt is tangentially fitted to the outer diameter of the tooth tip circle of the double cabinet door pulley. Two first bearings are engaged in the stepped U-shaped groove of the base of the right belt of the double cabinet door. The double front door pulley and the double cabinet door optical coupler baffle bracket are fixedly connected by screws. The double cabinet door belt pressure plate presses the timing belt and is fixed to the double cabinet door optical coupler baffle bracket by screws. One end of the timing belt engages with the double cabinet door belt lower pulley in the rectangular groove in the middle of the double cabinet door belt lower base. Second bearings are installed on the shafts at both ends of the double cabinet door belt lower pulley. The second bearings are installed in the U-shaped groove of the double cabinet door belt lower base. The double cabinet door optical coupler baffle is fixed to the double cabinet door belt pressure plate.
[0005] Preferably, the compound driven gear spur gear is an M0.5X100 compound driven gear spur gear.
[0006] Preferably, the pulley teeth of the duplex cabinet door are 3M32 teeth.
[0007] Preferably, the first bearing is a 7x14x3.5 bearing 687zz, and one side of the large step surface of the second bearing is matched with the inner vertical surface of the base of the double cabinet door belt.
[0008] Preferably, the second bearing is bearing F6800zz.
[0009] Preferably, the synchronous belt is a synchronous belt with a pitch line of 1026.15mm.
[0010] The beneficial effects of this utility model are:
[0011] 1. This utility model uses a stepper motor to control the synchronous belts on both the left and right sides to move simultaneously, thus ensuring the synchronicity of the movement on both sides.
[0012] 2. This utility model achieves two-stage speed reduction by adjusting the speed ratio of the large and small gears;
[0013] 3. This utility model uses a 42 stepper motor for driving, which enables the overall mechanism to operate reasonably within a limited space;
[0014] 4. The structure of this utility model is ingenious. It can run the synchronous belts on both sides simultaneously through a single connecting shaft, which saves costs and allows for flexible adjustment during installation. Attached Figure Description
[0015] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments;
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the stepper motor assembly of this utility model;
[0018] Figure 3 for Figure 2 Another directional diagram;
[0019] Figure 4 This is a schematic diagram of the installation of the optical coupler baffle bracket for the duplex cabinet door of this utility model;
[0020] Figure 5 This is a schematic diagram of the installation of the belt-driven hanging wheel for the duplex cabinet door according to this utility model;
[0021] Figure 6 This is a schematic diagram of the installation of the optical coupler baffle for the duplex cabinet door of this utility model. Detailed Implementation
[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0023] Reference Figure 1-6 The specific embodiment adopts the following technical solution: a cabinet door power system, including a left transmission system A and a right transmission system B. The double longitudinal opening linkage shaft 16 of the left transmission system A and the double longitudinal opening linkage shaft 5 of the right transmission system B are fixedly connected by screws. The structure of the left system is similar to that of the right transmission system. The right transmission system includes a double cabinet door stepper motor 1, which is fixed to the base 2 of the right belt of the double cabinet door. The U-shaped groove of the base 2 of the right belt of the double cabinet door is provided with a double driven wheel spur tooth 3 and a double cabinet door pulley tooth 4. The double driven wheel spur tooth 3 and the double cabinet door pulley tooth 4 are fixed by a cross-slot pan head screw. The double driven wheel spur tooth 3 also meshes with a small gear 17 on the double cabinet door stepper motor 1. The double longitudinal opening linkage shaft 5 is sequentially connected by a first bearing 6, the double driven wheel spur tooth 3, and the double cabinet door pulley tooth 4. At the center of the pulley tooth 4 and the first bearing 6, a shaft-type retaining ring 7 is installed on the outer end of the duplex longitudinally opening linkage shaft 5. The synchronous belt 8 is tangentially engaged with the outer diameter of the tooth tip circle of the duplex cabinet door pulley tooth 4. Two first bearings 6 are engaged in the stepped U-shaped groove of the base 2 of the duplex cabinet door right belt. The duplex front door pulley 9 and the duplex cabinet door optical coupler baffle bracket 10 are fixedly connected by screws. The duplex cabinet door belt pressure plate 11 presses the synchronous belt 8 and is fixed to the duplex cabinet door optical coupler baffle bracket 10 by screws. One end of the synchronous belt 8 engages with the duplex cabinet door belt lower hanging wheel 13 in the rectangular groove in the middle of the duplex cabinet door belt lower base 12. Second bearings 14 are provided on the shafts at both ends of the duplex cabinet door belt lower hanging wheel 13. The second bearings 14 are installed in the U-shaped groove of the duplex cabinet door belt lower base 12. The duplex cabinet door optical coupler baffle 15 is fixed on the duplex cabinet door belt pressure plate 11. The aforementioned compound driven gear spur gear 3 adopts an M0.5X100 compound driven gear spur gear.
[0024] It is worth noting that the teeth 4 of the duplex cabinet door pulley are 3M32 teeth.
[0025] It is worth noting that the first bearing 6 is a 7x14x3.5 bearing 687zz, and one side of the large step surface of the second bearing is matched with the inner vertical surface of the base of the double cabinet door belt.
[0026] It is worth noting that the second bearing 14 is bearing F6800zz.
[0027] Furthermore, the synchronous belt 8 is a synchronous belt with a pitch of 1026.15mm.
[0028] The specific assembly steps of this embodiment are as follows:
[0029] 1. First, fix the double driven pulley spur gear M0.5X100 and the double cabinet door pulley 3M32 gear with M3x5 cross-slot pan head screws;
[0030] 2. Then, one end of the duplex longitudinally opening linkage shaft is sequentially passed through the 7x14x3.5 bearing 687zz, the duplex driven wheel spur gear M0.5x100, the duplex cabinet door pulley 3M32 teeth, and the center of the 7x14x3.5 bearing 687zz.
[0031] 3. Install the shaft-type snap ring and the double-longitudinal linkage shaft together to limit the axial displacement of the 7x14x3.5 bearing 687zz; the axial displacement of the 7x14x3.5 bearing at the other end is limited by one end face of the stepped shaft of the double-longitudinal linkage shaft.
[0032] 4. Securely connect the stepper motor of the duplex cabinet door and the base on the right side belt of the duplex cabinet door using M3x8 hexagonal head screws.
[0033] 5. Then install the 1026.15mm timing belt and the 3M32 tooth pulley of the duplex cabinet door with their tooth tip circles tangentially matched;
[0034] 6. Place the assembled double driven pulley spur gear M0.5x100, double cabinet door pulley 3M32 teeth and pitch line 1026.15mm synchronous belt components into the corresponding U-shaped groove on the right side of the double cabinet door belt base;
[0035] 7. Two 7x14x3.5 bearings are snapped into the U-shaped groove of the base step on the right belt of the duplex cabinet door, ensuring the back-and-forth movement of the two bearings;
[0036] 8. Secure the duplex front door pulley and duplex cabinet door optical coupler baffle bracket with M3x6 Nero cross-groove pan head screws.
[0037] 9. Then use four M3x8 Phillips head countersunk screws to press the 1026.15mm wide, 3m synchronous belt onto the double cabinet door optocoupler baffle bracket.
[0038] 10. One end of the 1026.15mm synchronous belt passes through the rectangular groove in the middle of the base of the double cabinet door belt, and then the lower pulley of the double cabinet door belt is assembled with the belt at this end.
[0039] 11. The inner diameter of the 1026.15mm synchronous belt and the outer diameter of the lower pulley of the duplex cabinet door belt are tangentially matched.
[0040] 12. Then, install the two 10x19x5 bearings F6800zz with the two ends of the pulley under the belt of the duplex cabinet door respectively;
[0041] 13. The large stepped surface of bearing F6800zz and the surface of the undercarriage pulley of the duplex cabinet door are mutually matched;
[0042] 14. Finally, place the two bearings F6800zz into the U-shaped groove of the lower base of the duplex cabinet door belt, with one side of the large step surface of the F6800zz bearing mating with the inner vertical surface of the lower base of the duplex cabinet door belt.
[0043] 15. The axial movement of the two bearings F6800zz is restricted by the mutual cooperation between the lower base of the double cabinet door belt and the bearing F6800zz.
[0044] 16. Then fix the optical coupler baffle of the duplex cabinet door to the belt pressure plate of the duplex cabinet door using M3x6 cross-groove pan head screws;
[0045] 17. The transmission structure on the left and right sides is the same, except that the left side does not require a stepper motor for driving, so it will not be described in detail here;
[0046] 18. After the left and right mechanisms are assembled, the components are fixedly connected by the double longitudinal opening linkage shaft and the double longitudinal opening linkage shaft using M3x6 internal hex socket head cap screws.
[0047] The motion principle of this specific embodiment is as follows: The stepper motor of the duplex cabinet door drives the small gear on the motor, which in turn drives the spur gear M0.5X100 of the duplex driven wheel, thereby driving the duplex longitudinal opening linkage sub-shaft to rotate. This then drives the duplex cabinet door pulley 3M32 teeth on the duplex driven spur gear M0.5x100 to rotate with the 1026.15mm pitch synchronous belt. Subsequently, it drives the duplex cabinet door belt lower pulley that cooperates with the 1026.15mm pitch synchronous belt to rotate, thereby realizing the up and down movement of the duplex cabinet door optical coupler baffle bracket, duplex cabinet door belt pressure plate, and duplex cabinet door optical coupler baffle installed on the 1026.15mm pitch synchronous pulley.
[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A cabinet door power system, characterized in that, The system includes a left-side transmission system (A) and a right-side transmission system (B). The double-longitudinal linkage shaft (16) of the left-side transmission system (A) and the double-longitudinal linkage shaft (5) of the right-side transmission system (B) are fixedly connected by screws. The structure of the left-side system is similar to that of the right-side transmission system. The right-side transmission system includes a double-door stepper motor (1), which is fixed to the base (2) on the right belt of the double-door. The U-shaped groove of the double-ended driven wheel spur gear (3) and the double-ended cabinet door pulley gear (4) are provided. The double-ended driven wheel spur gear (3) and the double-ended cabinet door pulley gear (4) are fixed by cross-slot pan head screws. The double-ended driven wheel spur gear (3) also meshes with the pinion gear on the double-ended cabinet door stepper motor (1). The double-ended longitudinally opening linkage shaft (5) is sequentially connected by the first bearing (6), the double-ended driven wheel spur gear (3), the double-ended cabinet door pulley gear (4), and the center of the first bearing (6). A shaft-type snap ring (7) is installed at the outer end of the longitudinally opening linkage shaft (5). The timing belt (8) is tangentially fitted to the outer diameter of the tooth tip circle of the pulley (4) of the duplex cabinet door. Two first bearings (6) are engaged in the stepped U-shaped groove of the base (2) on the right belt of the duplex cabinet door. The duplex front door pulley (9) and the duplex cabinet door optical coupler baffle bracket (10) are fixedly connected by screws. The duplex cabinet door belt pressure plate (11) presses the timing belt (8) and the duplex cabinet door belt pressure plate (11) passes through The screw is fixed on the optical coupler baffle bracket (10) of the duplex cabinet door. One end of the synchronous belt (8) is engaged with the duplex cabinet door belt lower pulley (13) in the rectangular groove in the middle of the duplex cabinet door belt lower base (12). The two ends of the duplex cabinet door belt lower pulley (13) are provided with second bearings (14). The second bearings (14) are installed in the U-shaped groove of the duplex cabinet door belt lower base (12). The optical coupler baffle (15) of the duplex cabinet door is fixed on the duplex cabinet door belt pressure plate (11).
2. The cabinet door power system according to claim 1, characterized in that, The aforementioned compound driven gear spur gear (3) adopts M0.5X100 compound driven gear spur gear.
3. The cabinet door power system according to claim 1, characterized in that, The pulley teeth (4) of the duplex cabinet door are 3M32 teeth.
4. The cabinet door power system according to claim 1, characterized in that, The first bearing (6) is a 7x14x3.5 bearing 687zz, and the large step surface of the second bearing is matched with the inner vertical surface of the base of the duplex cabinet door belt.
5. The cabinet door power system according to claim 1, characterized in that, The second bearing (14) is bearing F6800zz.
6. The cabinet door power system according to claim 1, characterized in that, The synchronous belt (8) is a synchronous belt with a pitch line of 1026.15mm.