Lifting assembly having gear structure and lifting device having the same

Patent metadata

Field	Value
Publication number	US-12304786-B2
Application number	US-202217903194-A
Country	US
Kind code	B2
Filing date	Sep 6, 2022
Priority date	Oct 28, 2021
Publication date	May 20, 2025
Grant date	May 20, 2025

Abstract

A lifting structure operating precisely and stably at all stages of a lifting and lowering action includes a lifting assembly and a driving assembly. The lifting assembly includes two first links, two second links, and two seats. A first connecting arm of each first link has first and second ends, the first end having a first gear structure. A second connecting arm of each second link has third and fourth ends, a second and complementary gear structure being provided on the third end. The first gear structures are engaged and the second gear structures are engaged. The second end is rotatably connected to the fourth end through one of the two seats. The driving assembly can drive the two seats towards each other to perform lifting or drive them away from each other to perform lowering.

First claim

What is claimed is:

1. A lifting structure, comprising:
a lifting assembly comprising two first links, two second links, and two seats; each of two first links comprising at least one first connecting arm each having a first end and a second end, a first gear structure provided on the first end of each of the at least one first connecting arm; each of the two second links comprising at least one second connecting arm each having a third end and a fourth end, a second gear structure provided on the third end of each of the at least one second connecting arm; the first gear structure of one of the two first links engaged with the first gear structure of the other one of the two first links, the second gear structure of one of the two second links engaged with the second gear structure of the other one of the two second links;
the second end rotatably connected to the fourth end through one of the two seats; and
a driving assembly configured to drive the two seats to move toward or away from each other, thereby causing the third end to be lifted or lowered relative to the first end;
wherein the driving assembly comprises a motor, a screw bolt, and a mounting bracket; the screw bolt comprises a fifth end and a sixth end, an output shaft of the motor is connected to the fifth end through the coupling; the screw bolt passes through the two seats; the motor is configured to drive the screw bolt to rotate, thereby causing the two seats to move toward or away from each other;
wherein the mounting bracket comprises a first mounting plate, a second mounting plate, a third mounting plate, and a fourth mounting plate connected in that order; the first mounting plate and the third mounting plate are connected to two ends of the second mounting plate, the first mounting plate and the third mounting plate protrude vertically from a same surface of the second mounting plate, and are parallel to each other, the first mounting plate is located between the second mounting plate and the motor; the fourth mounting plate extends vertically from the third mounting plate away from the first mounting plate; the first mounting plate, the second mounting plate, and the third mounting plate cooperatively form a receiving cavity, the coupling is partially received in the receiving cavity; the motor is placed on a side of the first mounting plate away from the second mounting plate; the output shaft passes through a hole of the first mounting plate and further extends into the receiving cavity; the fourth mounting plate is connected to one of the seats close to the motor.

2. The lifting structure according to claim 1 , wherein the lifting assembly further comprises a first mounting base, a second mounting base, and a shaft assembly; the shaft assembly comprises two first shafts and two second shafts; the first mounting base and the first ends of the two first links are rotatably connected to each other by the two first shafts; the second mounting base and the third ends of the two second links are rotatably connected by the two second shafts; the third end drives the second mounting base to be lifted or lowered relative to the first mounting base.

3. The lifting structure according to claim 1 , wherein each of the two first links comprises two first connecting arms and a first connecting plate connected between the two first connecting arms.

4. The lifting structure according to claim 1 , wherein each of the two second links comprises two second connecting arms and a second connecting plate connected between the two second connecting arms.

5. The lifting structure according to claim 4 , further comprising a first microswitch, wherein the first microswitch is disposed below one of the two seats; the first microswitch is configured to contact the one of the two seats when the second mounting base is lowered to a lowest position.

6. The lifting structure according to claim 5 , further comprising a second microswitch, wherein the second microswitch is disposed on one of the two seats away from the other one of the two seats; the second microswitch is configured to contact the second connecting plate when the second mounting base is lifted to a highest position.

7. A lifting device, comprising:
a first support member; and
at least one lifting structure mounted on the first support member, each of the at least one lifting structure comprising:
a lifting assembly comprising two first links, two second links, and two seats; each of two first links comprising at least one first connecting arm each having a first end and a second end, a first gear structure provided on the first end of each of the at least one first connecting arm; each of the two second links comprising at least one second connecting arm each having a third end and a fourth end, a second gear structure provided on the third end of each of the at least one second connecting arm; the first gear structure engaged with the second gear structure, and the second end rotatably connected to the fourth end through one of the two seats; and

a driving assembly configured to drive the two seats to move toward or away from each other, thereby causing the third end to be lifted or lowered relative to the first end;
wherein the driving assembly comprises a motor, a screw bolt, and a mounting bracket; the screw bolt comprises a fifth end and a sixth end, an output shaft of the motor is connected to the fifth end through the coupling; the screw bolt passes through the two seats; the motor is configured to drive the screw bolt to rotate, thereby causing the two seats to move toward or away from each other:
wherein the mounting bracket comprises a first mounting plate, a second mounting plate, a third mounting plate, and a fourth mounting plate connected in that order; the first mounting plate and the third mounting plate are connected to two ends of the second mounting plate, the first mounting plate and the third mounting plate protrude vertically from a same surface of the second mounting plate, and are parallel to each other, the first mounting plate is located between the second mounting plate and the motor; the fourth mounting plate extends vertically from the third mounting plate away from the first mounting plate; the first mounting plate, the second mounting plate, and the third mounting plate cooperatively form a receiving cavity, the coupling is partially received in the receiving cavity; the motor is placed on a side of the first mounting plate away from the second mounting plate; the output shaft passes through a hole of the first mounting plate and further extends into the receiving cavity; the fourth mounting plate is connected to one of the seats close to the motor.

8. The lifting device according to claim 7 , wherein the lifting assembly further comprises a first mounting base, a second mounting base, and a shaft assembly; the shaft assembly comprises two first shafts and two second shafts; the first mounting base and the first ends of the two first links are rotatably connected to each other by the two first shafts; the second mounting base and the third ends of the two second links are rotatably connected by the two second shafts; the third end drives the second mounting base to be lifted or lowered relative to the first mounting base.

9. The lifting device according to claim 7 , wherein each of the two first links comprises two first connecting arms and a first connecting plate connected between the two first connecting arms.

10. The lifting device according to claim 7 , wherein each of the two second links comprises two second connecting arms and a second connecting plate connected between the two second connecting arms.

11. The lifting device according to claim 10 , further

Assignees

• Futaijing Prec Electronics Yantai Co Ltd
• Hon Hai Prec Ind Co Ltd

Inventors

• Chou Hun-Yi
• Chang Yu-Sheng
• Wen Chi-Cheng
• Lee Chih-Cheng
• Kao Chen-Ting
• Zhang yu-cheng
• Wu Tsung-Hsin
• Wu Chiung-Hsiang
• Chao Chen
• Li Hsiu-Fu
• Hsieh Chang-Ju
• Yen Sheng-Li

Classifications

• B66F3/46

  Combinations of several jacks with means for interrelating lifting or lowering movements · CPC title

• B66F7/0633

  Mechanical arrangements not covered by the following subgroups · CPC title

• B66F7/0608

  driven by screw or spindle · CPC title

• Y02T10/7072

  Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors · CPC title

• Y02T10/70

  Energy storage systems for electromobility, e.g. batteries · CPC title