CN116395588A - Electric lifting column with hand-operated function - Google Patents

Electric lifting column with hand-operated function Download PDF

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Publication number
CN116395588A
CN116395588A CN202310581821.8A CN202310581821A CN116395588A CN 116395588 A CN116395588 A CN 116395588A CN 202310581821 A CN202310581821 A CN 202310581821A CN 116395588 A CN116395588 A CN 116395588A
Authority
CN
China
Prior art keywords
wheel
screw rod
handle
synchronous wheel
assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310581821.8A
Other languages
Chinese (zh)
Inventor
胡绪山
朱浩翔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kunshan Zhete Electrical And Mechanical Technology Co ltd
Original Assignee
Kunshan Zhete Electrical And Mechanical Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kunshan Zhete Electrical And Mechanical Technology Co ltd filed Critical Kunshan Zhete Electrical And Mechanical Technology Co ltd
Priority to CN202310581821.8A priority Critical patent/CN116395588A/en
Publication of CN116395588A publication Critical patent/CN116395588A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • 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
    • A47B9/00—Tables with tops of variable height
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • B66F3/10—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated with telescopic sleeves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • B66F3/18—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated actuated through worm gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/44—Devices, e.g. jacks, adapted for uninterrupted lifting of loads with self-contained electric driving motors
    • 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
    • A47B2200/00—General construction of tables or desks
    • A47B2200/0035—Tables or desks with features relating to adjustability or folding
    • A47B2200/005—Leg adjustment
    • A47B2200/0056—Leg adjustment with a motor, e.g. an electric motor
    • A47B2200/0059—Leg adjustment with a motor, e.g. an electric motor in telescoping table legs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Invalid Beds And Related Equipment (AREA)

Abstract

The invention discloses an electric lifting column with a hand-operated function, which comprises a first cover plate, an inner tube fixedly connected with the first cover plate, a second cover plate, an outer tube fixedly connected with the second cover plate and a driving mechanism for driving the inner tube and the outer tube to relatively stretch out and draw back, wherein the driving mechanism comprises a screw rod assembly, a motor assembly and a manual driving assembly which are in transmission connection with the screw rod assembly, and the screw rod assembly is in transmission connection with the second cover plate; the screw rod assembly comprises a screw rod and a first synchronous wheel fixedly connected with the screw rod; the motor assembly comprises a motor and a second synchronous wheel arranged at the power output end of the motor, and the second synchronous wheel is in transmission connection with the first synchronous wheel; the manual driving assembly comprises a handle and a third synchronizing wheel, wherein the handle is rotatably arranged, the third synchronizing wheel is in transmission connection with the handle, and the third synchronizing wheel is in transmission connection with the second synchronizing wheel. The electric lifting column provided by the invention can realize electric or manual operation of lifting.

Description

Electric lifting column with hand-operated function
Technical Field
The invention relates to the technical field of lifting equipment, in particular to an electric lifting column with a hand-shaking function.
Background
The lifting column is applied to various products needing lifting, for example, the lifting column can be used as a lifting part of a lifting table, in order to facilitate height adjustment, an electric lifting column is commonly adopted in the prior art, the lifting column is generally composed of a motor, a screw rod nut, a sleeve and the like, the screw rod is driven to rotate through the motor to lift, and the whole lifting operation is powered by the motor to automatically lift. However, in the case of no electricity or inconvenient use of the electric switch, the product cannot be smoothly lifted.
The present invention has been made in order to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to provide an electric lifting column with a hand-operated function, which can be operated electrically and manually.
Based on the problems, the technical scheme provided by the invention is as follows:
an electric lifting column with a hand-operated function comprises a first cover plate, an inner tube fixedly connected with the first cover plate, a second cover plate, an outer tube fixedly connected with the second cover plate and a driving mechanism for driving the inner tube and the outer tube to relatively stretch out and draw back,
the driving mechanism comprises a screw rod assembly, a motor assembly and a manual driving assembly, wherein the motor assembly is in transmission connection with the screw rod assembly, and the screw rod assembly is in transmission connection with the second cover plate;
the screw rod assembly comprises a screw rod and a first synchronous wheel fixedly connected with the screw rod;
the motor assembly comprises a motor and a second synchronous wheel arranged at the power output end of the motor, and the second synchronous wheel is in transmission connection with the first synchronous wheel;
the manual driving assembly comprises a handle and a third synchronizing wheel, wherein the handle is rotatably arranged, the third synchronizing wheel is in transmission connection with the handle, and the third synchronizing wheel is in transmission connection with the second synchronizing wheel.
In some embodiments, the driving mechanism further comprises a synchronizing wheel box fixed on the first cover plate and a handle support fixedly connected with the synchronizing wheel box, the first synchronizing wheel, the second synchronizing wheel and the third synchronizing wheel are arranged in the synchronizing wheel box, and the handle is rotatably arranged in the handle support.
In some embodiments, a first bevel gear coaxially arranged with the handle is arranged in the handle support, and a second bevel gear is arranged on the third synchronous wheel and meshed with the first bevel gear.
In some embodiments, the first synchronizing wheel is rotatably supported in the synchronizing wheel box through a first bearing assembly and the third synchronizing wheel is rotatably supported in the handle support through a second bearing assembly, one end of the handle is rotatably supported in the handle support through a third bearing assembly, and the other end of the handle extends out of the outer tube and is provided with a holding part.
In some embodiments, the second synchronizing wheel comprises a first wheel part and a second wheel part which are arranged up and down, the second wheel part is in transmission connection with the first synchronizing wheel through a first synchronizing belt, and the first wheel part is in transmission connection with the third synchronizing wheel through a second synchronizing belt.
In some embodiments, the synchronous wheel box comprises an upper cover and a lower cover which are detachably connected up and down.
In some embodiments, the screw assembly further comprises a nut in threaded connection with the screw, a travel rod fixedly connected with the nut and extending along the axial direction of the screw, and a guide frame arranged on the periphery of the travel rod to limit the rotation of the nut, wherein the travel rod is fixedly connected with the second cover plate.
In some embodiments, the guide frame has an end portion that mates with the travel bar.
In some of these embodiments, a middle tube is disposed between the inner tube and the outer tube.
In some embodiments, a plurality of friction plates are respectively arranged between the inner tube and the middle tube and between the middle tube and the outer tube.
Compared with the prior art, the invention has the advantages that:
1. the motor assembly and the manual driving assembly are arranged, so that the screw rod assembly can be driven electrically and manually, and the manual driving assembly can be used for driving the screw rod assembly under the condition that an electric switch is not powered or is inconvenient to operate, so that the applicability of the lifting column is improved;
2. the manual driving assembly has the advantages of simple structure, compact transmission structure arrangement between the manual driving assembly and the screw rod assembly, and convenient operation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, in which the drawings are only some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an embodiment of an electric lifting column with a hand-shake function according to the present invention;
FIG. 2 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 3 is a second schematic cross-sectional view of an embodiment of the present invention;
FIG. 4 is a schematic diagram of a portion of a structure of an embodiment of the present invention;
FIG. 5 is a schematic view of a part of another direction of the embodiment of the present invention;
FIG. 6 is a schematic diagram of a transmission structure of a manual driving assembly and a screw assembly according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of the embodiment of the present invention after removing the synchronous belt;
wherein:
1. a first cover plate; 2. a second cover plate; 3. an inner tube; 4. an outer tube; 5. a motor; 6. a second synchronizing wheel; 6-1, a first wheel part; 6-2, a second wheel part; 7. a screw rod; 8. a nut; 9. a first synchronizing wheel; 10. a travel bar; 11. a guide frame; 11-1, a guide; 12. a first bearing assembly; 13. a third synchronizing wheel; 14. a second bearing assembly; 15. a synchronous wheel box; 15-1, an upper cover; 15-2, a lower cover; 16. a handle support; 17. a handle; 17-1, a grip; 18. a first bevel gear; 19. a second bevel gear; 20. a third bearing assembly; 21. a first synchronization belt; 22. a second timing belt; 23. a middle tube.
Detailed Description
The above-described aspects are further described below in conjunction with specific embodiments. It should be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. The implementation conditions used in the examples may be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are generally those in routine experiments.
Referring to fig. 1 to 5, for a schematic structural diagram of an embodiment of the present invention, an electric lifting column with a hand-shaking function is provided, which includes a first cover plate 1, an inner tube 3 fixedly connected with the first cover plate 1, a second cover plate 2, an outer tube 4 fixedly connected with the second cover plate 2, and a driving mechanism for driving the inner tube 3 and the outer tube 4 to extend and retract relatively.
The driving mechanism comprises a screw rod assembly, a motor assembly and a manual driving assembly, wherein the motor assembly is in transmission connection with the screw rod assembly, the screw rod assembly is in transmission connection with the second cover plate 2, and the motor assembly or the manual driving assembly drives the screw rod 7 to rotate so as to drive the inner tube 3 and the outer tube 4 to stretch relatively.
The screw rod assembly comprises a screw rod 7, a first synchronous wheel 9 fixedly connected with one axial end of the screw rod 7, a nut 8 in threaded connection with the screw rod 7, a travel rod 10 fixedly connected with the nut 8 and a guide frame 11 arranged on the periphery of the travel rod 10 to limit the rotation of the nut 8, wherein one axial end of the travel rod 10 is in threaded connection with the nut 8, the other axial end of the travel rod is fixedly connected with the second cover plate 2, a guide boss is arranged on the nut 8, and meanwhile, a guide groove matched with the guide boss is formed in the inner wall of the guide frame 11 and matched with the guide groove through the guide boss so as to avoid the rotation of the nut 8.
The motor assembly comprises a motor 5 and a second synchronous wheel 6 arranged at the power output end of the motor 5, the second synchronous wheel 6 is in transmission connection with a first synchronous wheel 9, the motor 5 drives the second synchronous wheel 6 to rotate so as to drive the first synchronous wheel 9 to rotate, thereby driving a screw rod 7 to rotate, further driving a nut 8 to axially move along the screw rod 7, and further driving the inner tube 3 and the outer tube 4 to relatively stretch.
The manual driving assembly comprises a handle 17 and a third synchronizing wheel 13, wherein the handle 17 is arranged in a rotating mode, the third synchronizing wheel 13 is in transmission connection with the second synchronizing wheel 6, and the third synchronizing wheel 13 is driven to rotate through the rotation of the handle 17 so as to drive the second synchronizing wheel 6 to rotate, so that the first synchronizing wheel 9 is driven to rotate.
In order to facilitate the installation of each synchronizing wheel and the handle 17, as shown in fig. 4 and 5, the driving mechanism further comprises a synchronizing wheel box 15 fixed on the first cover plate 1 and a handle support 16 fixedly connected with the synchronizing wheel box 15, wherein the first synchronizing wheel 9, the second synchronizing wheel 6 and the third synchronizing wheel 13 are arranged in the synchronizing wheel box 15, and the handle 17 is rotatably arranged in the handle support 16.
In order to facilitate the installation of the respective synchronizing wheels, the synchronizing wheel box 15 includes an upper cover 15-1 and a lower cover 15-2 detachably connected up and down.
Specifically, the first synchronizing wheel 9 is rotatably supported in the synchronizing wheel box 15 through the first bearing assembly 12 and the third synchronizing wheel 13 through the second bearing assembly 14, one end of the handle 17 is rotatably supported in the handle support 16 through the third bearing assembly 20, and the other end of the handle 17 extends out of the outer tube 4 and is provided with a holding part 17-1 so as to facilitate the rotation operation of the handle 17. The first bearing assembly 12 comprises two bearings arranged coaxially with the first synchronizing wheel 9, the second bearing assembly 14 comprises two bearings arranged coaxially with the third synchronizing wheel 13, and the third bearing assembly 10 comprises two bearings arranged coaxially with the handle 17.
In this example, the axial direction of the handle 17 is perpendicular to the axial direction of the third synchronizing wheel 13, in order to realize the transmission connection between the handle 17 and the second synchronizing wheel 6, a first bevel gear 18 coaxially arranged with the handle 17 is arranged in the handle support 16, a second bevel gear 19 coaxially arranged with the third synchronizing wheel 13 is arranged on the third synchronizing wheel 13, the first bevel gear 18 is meshed with the second bevel gear 19, the handle 17 is rotated, and the first bevel gear 18 is driven to rotate so as to drive the second bevel gear 19 to rotate, thereby driving the third synchronizing wheel 13 to rotate.
As shown in fig. 6 and 7, the second synchronizing wheel 6 includes a first wheel part 6-1 and a second wheel part 6-2 arranged one above the other, wherein the second wheel part 6-2 is in driving connection with the first synchronizing wheel 9 via a first synchronizing belt 21, and the first wheel part 6-1 is in driving connection with the third synchronizing wheel 13 via a second synchronizing belt 22.
The guide frame 11 is fixed on the synchronous wheel box 15, and in order to be convenient for guiding the travel bar 10, one end of the guide frame 11, which is away from the synchronous wheel box 15, is provided with a guide piece 11-1 matched with the travel bar 10.
In order to improve stability of the lifting column, a middle tube 23 is provided between the inner tube 3 and the outer tube 4, and a plurality of friction plates (not shown) are provided between the inner tube 3 and the middle tube 23 and between the middle tube 23 and the outer tube 4, respectively. The friction plate adopts a friction plate with a low friction coefficient so as to reduce the force required for releasing.
The working principle of the invention is as follows:
the motor 5 works to drive the second synchronous wheel 6 to rotate by operating the electric operation switch, the second synchronous wheel 6 drives the first synchronous wheel 9 to rotate through the first synchronous belt 21, and the first synchronous wheel 9 drives the screw rod 7 to rotate so as to drive the inner pipe 3 and the outer pipe 4 to relatively stretch out and draw back, thus realizing the electric operation of lifting; when the electric switch is not powered or inconvenient to operate, the handle 17 is manually rotated, the first bevel gear 18 drives the second bevel gear 19 to rotate so as to drive the third synchronizing wheel 13, the third synchronizing wheel 13 drives the second synchronizing wheel 6 to rotate through the second synchronizing belt 22, the second synchronizing wheel 6 further drives the first synchronizing wheel 9 to rotate so as to drive the screw rod 7 to rotate, and then the relative expansion and contraction between the inner tube 3 and the outer tube 4 are driven, so that the lifting manual operation is realized.
In conclusion, the electric lifting column is convenient to operate electrically and manually as required, and applicability is improved.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.

Claims (10)

1. The utility model provides an electronic elevating column of area hand function, includes first apron, with first apron fixed connection's inner tube, second apron, with second apron fixed connection's outer tube and drive the inner tube with the relative telescopic actuating mechanism of outer tube, its characterized in that:
the driving mechanism comprises a screw rod assembly, a motor assembly and a manual driving assembly, wherein the motor assembly is in transmission connection with the screw rod assembly, and the screw rod assembly is in transmission connection with the second cover plate;
the screw rod assembly comprises a screw rod and a first synchronous wheel fixedly connected with the screw rod;
the motor assembly comprises a motor and a second synchronous wheel arranged at the power output end of the motor, and the second synchronous wheel is in transmission connection with the first synchronous wheel;
the manual driving assembly comprises a handle and a third synchronizing wheel, wherein the handle is rotatably arranged, the third synchronizing wheel is in transmission connection with the handle, and the third synchronizing wheel is in transmission connection with the second synchronizing wheel.
2. The electric lifting column with a hand-shaking function according to claim 1, wherein: the driving mechanism further comprises a synchronous wheel box fixed on the first cover plate and a handle support fixedly connected with the synchronous wheel box, wherein the first synchronous wheel, the second synchronous wheel and the third synchronous wheel are arranged in the synchronous wheel box, and the handle is rotatably arranged in the handle support.
3. The electric lifting column with a hand-shaking function according to claim 2, wherein: the handle support is internally provided with a first bevel gear which is coaxially arranged with the handle, the third synchronous wheel is provided with a second bevel gear, and the second bevel gear is meshed with the first bevel gear.
4. The electric lifting column with a hand-shaking function according to claim 2, wherein: the first synchronous wheel is rotatably supported in the synchronous wheel box through a first bearing assembly and a third synchronous wheel is rotatably supported in the handle support through a second bearing assembly, one end of the handle is rotatably supported in the handle support through a third bearing assembly, and the other end of the handle extends out of the outer tube and is provided with a holding part.
5. The electric lifting column with a hand-shaking function according to claim 2, wherein: the second synchronizing wheel comprises a first wheel part and a second wheel part which are arranged up and down, the second wheel part is in transmission connection with the first synchronizing wheel through a first synchronizing belt, and the first wheel part is in transmission connection with the third synchronizing wheel through a second synchronizing belt.
6. The electric lifting column with a hand-shaking function according to claim 2, wherein: the synchronous wheel box comprises an upper cover and a lower cover which are detachably connected up and down.
7. The electric lifting column with a hand-shaking function according to claim 1, wherein: the screw rod assembly further comprises a nut in threaded connection with the screw rod, a travel rod fixedly connected with the nut and extending along the axial direction of the screw rod, and a guide frame arranged on the periphery of the travel rod to limit the rotation of the nut, wherein the travel rod is fixedly connected with the second cover plate.
8. The electric lifting column with a hand shaking function according to claim 7, wherein: and a guide piece matched with the travel rod is arranged at the end part of the guide frame.
9. The electric lifting column with a hand-shaking function according to claim 1, wherein: a middle pipe is arranged between the inner pipe and the outer pipe.
10. The electric lifting column with a hand function according to claim 9, wherein: and a plurality of friction plates are respectively arranged between the inner pipe and the middle pipe and between the middle pipe and the outer pipe.
CN202310581821.8A 2023-05-23 2023-05-23 Electric lifting column with hand-operated function Pending CN116395588A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310581821.8A CN116395588A (en) 2023-05-23 2023-05-23 Electric lifting column with hand-operated function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310581821.8A CN116395588A (en) 2023-05-23 2023-05-23 Electric lifting column with hand-operated function

Publications (1)

Publication Number Publication Date
CN116395588A true CN116395588A (en) 2023-07-07

Family

ID=87018209

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310581821.8A Pending CN116395588A (en) 2023-05-23 2023-05-23 Electric lifting column with hand-operated function

Country Status (1)

Country Link
CN (1) CN116395588A (en)

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