Manual and automatic integrated drawer in-out device

Abstract

The invention provides a manual-automatic integrated drawer in-out device which comprises a drawer, a bottom plate is arranged on the lower side of the drawer, the drawer is in sliding connection with the bottom plate, the top face of the bottom plate is connected with a manual-automatic integrated driving device, and the manual-automatic integrated driving device is in driving connection with the drawer. The manual-automatic integrated driving device comprises a driving shaft slidably connected to the top face of the bottom plate, the driving shaft is in threaded connection with a screw in the axis direction, one end of the screw is connected with the drawer, the driving shaft is sleeved with a sliding gear, the sliding gear is in axial sliding connection with the driving shaft, and the sliding gear is in radial driving connection with the driving shaft. A motor is arranged close to the driving shaft and is in driving connection with the sliding gear. When the drawer needs to be opened automatically or manually, switching between a manual mode and an automatic mode is not needed, operation is convenient, complex electronic equipment is not needed, the structure is compact, stability is high, when the drawer is opened manually, resistance is small, and user experience is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of actuators, and in particular relates to a manual and automatic drawer entry and exit device. Background Art

[0002] With the continuous advancement of science and technology, people have increasing demands for smart and humanized home life, and require furniture to be more intelligent and humanized. In order to be able to fully open the drawer and meet the requirements of manual opening and automatic opening, the existing actuator designs are often very complex in structure, with low stability and high failure rate. In addition, there is great resistance during manual opening of the drawer, which is inconvenient for users to operate and has a poor experience.

[0003] Therefore, the above problems need to be solved urgently. Summary of the invention

[0004] Purpose of the invention: In order to overcome the above shortcomings, the present invention provides a manual and automatic drawer entry and exit device, which does not require switching between manual mode and automatic mode, is easy to operate, has no complicated electronic equipment, has a compact structure, and has high stability. When the drawer is manually opened, there is little resistance, thereby improving the user experience.

[0005] Technical solution: In order to achieve the above-mentioned purpose, the present invention provides a manual-automatic drawer entry and exit device, including a drawer, a bottom plate is provided at the lower side of the drawer, the drawer and the bottom plate are slidably connected, a manual-automatic driving device is connected to the top surface of the bottom plate, and the manual-automatic driving device is drivably connected to the drawer. The manual-automatic driving device includes a driving shaft slidably connected to the top surface of the bottom plate, the driving shaft is threadedly connected with a screw rod along the axial direction, one end of the screw rod is connected to the drawer, a sliding gear is provided on the driving shaft sleeve, the sliding gear and the driving shaft are axially slidably connected, and the sliding gear and the driving shaft are radially driven and connected. A motor is provided near the driving shaft, and the motor is drivably connected to the sliding gear. The motor drives the sliding gear to rotate, and the sliding gear drives the driving shaft to rotate. The present invention is used to open the drawer. When the drawer needs to be opened automatically, the motor is started, the motor drives the sliding gear to rotate, the sliding gear drives the driving shaft to rotate, and the driving shaft drives the screw rod to extend to open the drawer. When the drawer needs to be closed automatically, the motor rotates in the reverse direction, the motor drives the sliding gear to rotate in the reverse direction, the sliding gear drives the driving shaft to rotate in the reverse direction, and the driving shaft drives the screw rod to retract to close the drawer. When the power is off and the drawer needs to be opened or closed manually, the user grabs the drawer and moves it, and the drawer drives the drive shaft to move through the screw, and the drive shaft slides relative to the sliding gear. When the drawer needs to be opened automatically or manually, there is no need to switch between the manual mode and the automatic mode, the operation is convenient, the drawer can be opened automatically or manually at the same time through a mechanical mechanism, there is no complicated electronic equipment, the structure is compact, the stability is high, and when the drawer is opened manually, the resistance is small, which improves the user experience.

[0006] Furthermore, in the above-mentioned manual and automatic drawer entry and exit device, a first limit plate and a second limit plate are provided on the top surface of the bottom plate, and the sliding gear is rotatably connected between the first limit plate and the second limit plate. The first limit plate and the second limit plate support and limit the sliding gear, which can prevent the axis of the sliding gear from moving, and prevent the axis of the sliding gear from moving when the drawer is manually opened or closed, thereby ensuring that the drawer is fully opened and fully closed, and improving the stability of the device.

[0007] Furthermore, in the above-mentioned manual-automatic drawer entry and exit device, the inner ring of the sliding gear is provided with internal teeth, and the internal teeth are arranged in an array around the inner side of the sliding gear. The outer side of the drive shaft is provided with external teeth, and the external teeth are arranged in an array around the axis of the drive shaft. The external teeth and the internal teeth are arranged accordingly, and the external teeth and the internal teeth are meshed. The sliding gear and the drive shaft are connected through the external teeth and the internal teeth. When the sliding gear rotates, the external teeth drive the internal teeth to rotate, and then drive the drive shaft to rotate, drive the drawer to move, and realize automatic opening or closing of the drawer. When the drawer is opened or closed manually, the internal teeth slide along the tooth grooves between the two external teeth to ensure that the drawer can be opened or closed manually. The above structure makes it possible to directly operate the drawer without switching between manual mode and automatic mode. The resistance to manually opening the drawer is small, which improves the user experience, has high structural stability, and low failure rate.

[0008] Furthermore, in the above-mentioned manual and automatic drawer entry and exit device, a limit groove is provided at one end of the drive shaft near the motor, and the limit groove is arranged around the axis of the drive shaft. The bottom plate is connected to an electromagnet, which is arranged on the lower side of the drive shaft, and the armature provided by the electromagnet extends into the limit groove. When the drawer is in a closed state and needs to be opened automatically, the armature provided by the electromagnet extends into the limit groove, forming an axial limit on the drive shaft to prevent the drive shaft from moving along the axis when the drawer is opened automatically, and then the motor drives the drive shaft to rotate and open the drawer. When the drawer is in an open state and needs to be closed automatically, the armature provided by the electromagnet extends into the limit groove, forming an axial limit on the drive shaft to prevent the drive shaft from moving along the axis when the drawer is opened automatically, and then the motor drives the drive shaft to rotate and close the drawer.

[0009] Furthermore, in the above-mentioned manual and automatic drawer entry and exit device, a support is connected to the top surface of the bottom plate, and the top surface of the support is set to an arc shape corresponding to the cross section of the drive shaft, and the drive shaft and the top surface of the support are in contact. The drive shaft is slidably connected to the top surface of the support, ensuring that the drive shaft can rotate and move, and the support supports the drive shaft to prevent the drive shaft from shifting, thereby improving the stability of the device.

[0010] Furthermore, in the above-mentioned manual and automatic drawer entry and exit device, support blocks are connected to both ends of the bottom plate, guide pillars are connected between the support blocks at both ends, two or more guide pillars are provided, and the drawer and the guide pillars are slidably connected. The drawer slides along the guide pillars, which can improve the stability of the drawer movement.

[0011] Furthermore, in the above-mentioned manual and automatic drawer entry and exit device, a sliding block and a driving block are respectively connected to the bottom of the drawer, the driving block is connected to one end of the drawer, and the driving block is connected to the screw rod. The sliding block is arranged at the end of the drawer away from the sliding block, the guide column passes through the sliding block, and the guide column and the sliding block are slidably connected. When the drawer is closed in place, the sliding block abuts against the support block on the side away from the motor, and when the drawer is opened in place, the sliding block abuts against the support block on the side close to the motor.

[0012] Furthermore, in the above-mentioned manual and automatic drawer entry and exit device, the motor shaft of the motor is connected to a driving gear, and the driving gear is meshed with the sliding gear. The motor is driven by the driving gear, and the gear ratio of the driving gear and the sliding gear can be adjusted, thereby changing the driving force and driving speed, thereby increasing the output torque under the condition of constant motor power, and the gear transmission is smooth and stable.

[0013] Furthermore, in the above-mentioned manual and automatic drawer entry and exit device, a distance sensor is provided on the side of the drive block close to the sliding block, and the distance sensor continuously measures the distance between the drive block and the drive shaft. The distance sensor continuously transmits the detected distance signal to the control system, and the control system controls the motor to start according to the received distance signal. Specifically, when the drawer is in a closed state, the control system senses that the distance between the drive block and the drive shaft increases through the distance sensor, and the control system starts the electromagnet, and the armature provided by the electromagnet extends into the limit groove, and then starts the motor to drive the drawer to open. When the drawer is in an automatic opening state, that is, when the screw extends out of the drive shaft, the control system senses that the distance between the drive block and the drive shaft decreases through the distance sensor, and the control system starts the electromagnet, and the armature provided by the electromagnet extends into the limit groove, and then starts the motor to drive the drawer to close. The distance sensor senses the change in the distance between the drive block and the drive shaft, and the control system starts the motor according to the received distance change signal, helping the user to open or close the drawer, thereby improving the convenience of operation and user experience.

[0014] Furthermore, in the above-mentioned manual and automatic drawer entry and exit device, the drawer is configured as a hollow cavity with an open top surface.

[0015] It can be seen from the above technical scheme that the present invention has the following beneficial effects: the present invention is a manual and automatic drawer entry and exit device. When the drawer needs to be opened automatically or manually, there is no need to switch between manual mode and automatic mode. The operation is convenient. The drawer can be opened automatically or manually at the same time through a mechanical mechanism. There is no complicated electronic equipment. The structure is compact and the stability is high. When the drawer is opened manually, the resistance is small, which improves the user experience. The control system controls the motor according to the change of the distance signal received from the distance sensor to help the user open or close the drawer, thereby improving the convenience of operation and user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a manual and automatic drawer entry and exit device of the present invention; Figure 2 It is a schematic diagram of the interior of the manual and automatic drawer entry and exit device of the present invention; Figure 3 is a structural schematic diagram of the base plate; Figure 4 for Figure 2 A partial enlarged view of Figure 5 It is a bottom view of the drawer.

[0017] In the figure: 1. drawer, 11. sliding block, 12. driving block, 13. distance sensor, 2. bottom plate, 21. first limit plate, 22. second limit plate, 23. support table, 24. support block, 25. guide column, 3. manual-automatic driving device, 31. driving shaft, 311. external teeth, 312. limiting groove, 32. screw, 33. sliding gear, 331. internal teeth, 341. driving gear, 34. motor, 4. electromagnet. DETAILED DESCRIPTION

[0018] Example 1 like Figure 1-2 The manual-automatic drawer entry and exit device shown in the figure includes a drawer 1, a bottom plate 2 is provided at the lower side of the drawer 1, the drawer 1 and the bottom plate 2 are slidably connected, a manual-automatic driving device 3 is connected to the top surface of the bottom plate 2, and the manual-automatic driving device 3 is drivingly connected to the drawer 1. The manual-automatic driving device 3 includes a driving shaft 31 slidably connected to the top surface of the bottom plate 2, the driving shaft 31 is threadedly connected with a screw 32 along the axial direction, one end of the screw 32 is connected to the drawer 1, and the driving shaft 31 is sleeved with a sliding gear 33, the sliding gear 33 and the driving shaft 31 are axially slidably connected, and the sliding gear 33 and the driving shaft 31 are radially drivingly connected. A motor 34 is provided near the driving shaft 31, and the motor 34 and the sliding gear 33 are drivingly connected. The motor 34 drives the sliding gear 33 to rotate, and the sliding gear 33 drives the driving shaft 31 to rotate. The drawer 1 is set as a hollow cavity with an opening on the top surface.

[0019] A limiting groove 312 is provided at one end of the drive shaft 31 near the motor 34, and the limiting groove 312 is arranged around the axis of the drive shaft 31. The bottom plate 2 is connected to the electromagnet 4, which is arranged on the lower side of the drive shaft 31, and the armature provided by the electromagnet 4 extends into the limiting groove 312. When the drawer 1 is in a closed state and needs to be opened automatically, the armature provided by the electromagnet 4 extends into the limiting groove 312, forming an axial limit on the drive shaft 31 to prevent the drive shaft 31 from moving along the axis when the drawer is opened automatically. When the drawer 1 is in an open state and needs to be closed automatically, the armature provided by the electromagnet 4 extends into the limiting groove 312, forming an axial limit on the drive shaft 31 to prevent the drive shaft 31 from moving along the axis when the drawer is opened automatically. The motor shaft of the motor 34 is connected to a driving gear 341, and the driving gear 341 is meshed with the sliding gear 33.

[0020] The present invention is used to open a drawer. When the drawer needs to be opened automatically, the armature provided on the electromagnet 4 extends into the limit groove 312 near the side of the motor 34, and then the motor 34 is started. The motor 34 drives the sliding gear 33 to rotate through the driving gear 341, and the sliding gear 33 drives the driving shaft 31 to rotate. The driving shaft 31 drives the screw 32 to extend to open the drawer. When the drawer needs to be closed automatically, the motor 34 rotates in the opposite direction, the motor 34 drives the sliding gear 33 to rotate in the opposite direction, the sliding gear 33 drives the driving shaft 31 to rotate in the opposite direction, and the driving shaft 31 drives the screw 32 to retract to close the drawer 1. When it is in a power-off state, the armature provided on the electromagnet 4 retracts. When the drawer needs to be opened or closed manually, the user grabs the drawer 1 and moves it. The drawer 1 drives the driving shaft 31 to move through the screw 32, and the driving shaft 31 slides relative to the sliding gear 33, and the drawer 1 is manually opened. At this time, when the drawer needs to be closed automatically, the user grabs the drawer 1 and moves it, and the driving shaft 31 slides relative to the sliding gear 33 to close the drawer.

[0021] like Figure 3 The manual and automatic drawer entry and exit device shown in the figure has a first limit plate 21 and a second limit plate 22 on the top surface of the bottom plate 2, and a sliding gear 33 is rotatably connected between the first limit plate 21 and the second limit plate 22. The first limit plate 21 and the second limit plate 22 support and limit the sliding gear 33 to prevent the axis of the sliding gear 33 from moving. A support 23 is connected to the top surface of the bottom plate 2, and the top surface of the support 23 is set to an arc shape corresponding to the cross-section of the drive shaft 31, and the drive shaft 31 and the top surface of the support 23 are in contact. The drive shaft 31 is slidably connected to the top surface of the support 23 to ensure that the drive shaft 31 can be rotated and moved, and the support 23 supports the drive shaft 31. Support blocks 24 are connected to both ends of the bottom plate 2, and guide columns 25 are connected between the support blocks 24 at both ends. There are two or more guide columns 25, and the drawer 1 is slidably connected to the guide columns 25.

[0022] like Figure 4In the manual and automatic drawer entry and exit device shown, the inner ring of the sliding gear 33 is provided with an inner tooth 331, and the inner tooth 331 is arranged in an array around the inner side of the sliding gear 33. The outer side of the driving shaft 31 is provided with an outer tooth 311, and the outer tooth 311 is arranged in an array around the axis of the driving shaft 31. The outer tooth 311 and the inner tooth 331 are arranged correspondingly, and the outer tooth 311 and the inner tooth 331 are meshed. The sliding gear 33 and the driving shaft 31 are connected through the outer tooth 311 and the inner tooth 331. When the sliding gear 33 rotates, the outer tooth 311 drives the inner tooth 331 to rotate, thereby driving the driving shaft 31 to rotate, driving the drawer 1 to move, and realizing automatic opening or closing of the drawer 1. When the drawer 1 is manually opened or closed, the inner tooth 331 slides along the tooth groove between the two outer teeth 311 to ensure that the drawer 1 can be manually opened or closed.

[0023] like Figure 5 In the manual and automatic drawer entry and exit device shown, a sliding block 11 and a driving block 12 are respectively connected to the bottom of the drawer 1, the driving block 12 is connected to one end of the drawer 1, and the driving block 12 is drivingly connected to the screw 32. The sliding block 11 is arranged at the end of the drawer 1 away from the sliding block 11, and the guide column 25 passes through the sliding block 11, and the guide column 25 and the sliding block 11 are slidably connected. A distance sensor 13 is provided on the side of the driving block 12 close to the sliding block 11, and the distance sensor 13 continuously measures the distance between the driving block 12 and the driving shaft 31.

[0024] The distance sensor 13 continuously transmits the detected distance signal to the control system, and the control system controls the motor to start according to the received distance signal. Specifically, when the drawer is in a closed state and the distance between the drive block 12 and the drive shaft 31 increases, the control system starts the electromagnet 4, and the armature provided by the electromagnet 4 extends into the limit groove 312, and the motor 34 is started to drive the drawer 1 to open. That is, when the user manually opens the drawer, the distance sensor 13 senses the change in the distance between the drive block 12 and the drive shaft 31, and the control system starts the motor 34 according to the received distance change signal to help the user open the drawer. When the drawer is in an automatic opening state, that is, when the screw 32 extends out of the drive shaft 31, the distance sensor 13 senses that the distance between the drive block 12 and the drive shaft 31 becomes smaller, and the control system starts the electromagnet 4, and the armature provided by the electromagnet 4 extends into the limit groove 312, and then starts the motor 34 to drive the drawer 1 to close.

[0025] The above embodiments are exemplary, and their purpose is to illustrate the technical concept and features of the present invention so that people familiar with this field can understand the content of the present invention and implement it accordingly, and they cannot limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A manual and automatic drawer entry and exit device, characterized in that: The invention comprises a drawer (1), wherein a bottom plate (2) is provided at the lower side of the drawer (1), the drawer (1) and the bottom plate (2) are slidably connected, the top surface of the bottom plate (2) is connected with a manual-automatic driving device (3), and the manual-automatic driving device (3) and the drawer (1) are drivingly connected; the manual-automatic driving device (3) comprises a driving shaft (31) slidably connected to the top surface of the bottom plate (2), the driving shaft (31) is threadedly connected with a screw rod (32) along the axial direction, one end of the screw rod (32) is connected to the drawer (1), the driving shaft (31) is sleeved with a sliding gear (33), the sliding gear (33) and the driving shaft (31) are axially slidably connected, and the sliding gear (33) and the driving shaft (31) are radially drivingly connected; a motor (34) is provided adjacent to the driving shaft (31), the motor (34) and the sliding gear (33) are drivingly connected, the motor (34) drives the sliding gear (33) to rotate, and the sliding gear (33) drives the driving shaft (31) to rotate.

2. The manual and automatic drawer entry and exit device according to claim 1, characterized in that: A first limiting plate (21) and a second limiting plate (22) are provided on the top surface of the bottom plate (2), and the sliding gear (33) is rotatably connected between the first limiting plate (21) and the second limiting plate (22).

3. The manual and automatic drawer entry and exit device according to claim 1, characterized in that: The inner ring of the sliding gear (33) is provided with internal teeth (331), and the internal teeth (331) are arranged in an array around the inner side of the sliding gear (33); the outer side of the driving shaft (31) is provided with external teeth (311), and the external teeth (311) are arranged in an array around the axis of the driving shaft (31), and the external teeth (311) and the internal teeth (331) are arranged correspondingly, and the external teeth (311) and the internal teeth (331) are meshed.

4. The manual and automatic drawer entry and exit device according to claim 1, characterized in that: A limiting groove (312) is provided at one end of the drive shaft (31) close to the motor (34), and the limiting groove (312) is arranged around the axis of the drive shaft (31); the bottom plate (2) is connected to an electromagnet (4), and the electromagnet (4) is arranged on the lower side of the drive shaft (31), and an armature provided on the electromagnet (4) extends into the limiting groove (312).

5. The manual and automatic drawer entry and exit device according to claim 1, characterized in that: The top surface of the bottom plate (2) is connected to a support platform (23), the top surface of the support platform (23) is configured to be an arc shape corresponding to the cross section of the drive shaft (31), and the drive shaft (31) and the top surface of the support platform (23) are in abutment with each other.

6. The manual and automatic drawer entry and exit device according to claim 1, characterized in that: Support blocks (24) are connected to both ends of the bottom plate (2), guide columns (25) are connected between the support blocks (24) at both ends, two or more guide columns (25) are provided, and the drawer (1) and the guide columns (25) are slidably connected.

7. The manual and automatic drawer entry and exit device according to claim 6, characterized in that: The bottom of the drawer (1) is respectively connected to a sliding block (11) and a driving block (12); the driving block (12) is connected to one end of the drawer (1); the driving block (12) and the screw rod (32) are drivingly connected; the sliding block (11) is arranged at one end of the drawer (1) away from the sliding block (11); the guide column (25) passes through the sliding block (11); and the guide column (25) and the sliding block (11) are slidably connected.

8. The manual and automatic drawer entry and exit device according to claim 1, characterized in that: The motor shaft of the motor (34) is connected to a driving gear (341), and the driving gear (341) is meshed with the sliding gear (33).

9. The manual and automatic drawer entry and exit device according to claim 7, characterized in that: A distance sensor (13) is provided on a side of the driving block (12) close to the sliding block (11), and the distance sensor (13) continuously measures the distance between the driving block (12) and the driving shaft (31).

10. The manual and automatic drawer entry and exit device according to claim 1, characterized in that: The drawer (1) is configured as a hollow cavity with an open top surface.

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