CN116711944A - Electric adjustment supporting device - Google Patents

Electric adjustment supporting device Download PDF

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Publication number
CN116711944A
CN116711944A CN202310799638.5A CN202310799638A CN116711944A CN 116711944 A CN116711944 A CN 116711944A CN 202310799638 A CN202310799638 A CN 202310799638A CN 116711944 A CN116711944 A CN 116711944A
Authority
CN
China
Prior art keywords
arm assembly
supporting
block
power
pushing piece
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
CN202310799638.5A
Other languages
Chinese (zh)
Inventor
项乐宏
郑豪杰
杨桂兵
胡碧锋
陈晓佳
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.)
Loctek Ergonomic Technology Co Ltd
Original Assignee
Loctek Ergonomic 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 Loctek Ergonomic Technology Co Ltd filed Critical Loctek Ergonomic Technology Co Ltd
Priority to CN202310799638.5A priority Critical patent/CN116711944A/en
Publication of CN116711944A publication Critical patent/CN116711944A/en
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C17/00—Sofas; Couches; Beds
    • A47C17/86—Parts or details for beds, sofas or couches only not fully covered in a single one of the sub-groups A47C17/02, A47C17/04, A47C17/38, A47C17/52, A47C17/64, or A47C17/84; Drawers in or under beds
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C19/00—Bedsteads
    • A47C19/02—Parts or details of bedsteads not fully covered in a single one of the following subgroups, e.g. bed rails, post rails
    • A47C19/021—Bedstead frames
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C19/00—Bedsteads
    • A47C19/12—Folding bedsteads
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C21/00—Attachments for beds, e.g. sheet holders, bed-cover holders; Ventilating, cooling or heating means in connection with bedsteads or mattresses
    • A47C21/006—Oscillating, balancing or vibrating mechanisms connected to the bedstead
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Invalid Beds And Related Equipment (AREA)

Abstract

The application discloses an electric-adjustment supporting device, which comprises a base frame, a supporting plate, a first sliding block and an electric driving mechanism, wherein the supporting plate can rotate relative to the base frame; the device also comprises a support assembly and a first power assisting mechanism, wherein the support assembly comprises a support rod and a guide block connected to the base frame, the first end of the support rod is rotatably connected with the first sliding block, and the second end of the support rod is connected with a pushing piece contacted with the support plate; the guide block is provided with a guide surface, and the first power assisting mechanism comprises a first power assisting arm assembly rotatably connected to the pushing piece and a first supporting block connected in the sliding groove; when the pushing piece is lifted upwards to a first position, the free end of the first power assisting arm assembly abuts against the first supporting block, and when the pushing piece is lifted upwards continuously, the first power assisting arm assembly provides power for the supporting plate. The electric-adjusting supporting device has the advantages of thin thickness, small volume, compact structure in the initial folding state, power-assisted support in the unfolding state, large load and good support stability.

Description

Electric adjustment supporting device
Technical Field
The application relates to the technical field of electric furniture, in particular to an electric-adjustment supporting device.
Background
The electric bed of the related art can adjust the sleeping posture, lying, sitting and other postures of the user, and relieve fatigue, so the electric bed is deeply favored by the user. In order to enable a common bed in a user's home to have the adjusting function of an electric bed, people install an electrically adjustable supporting device below a mattress of the common bed, which is also called a back pushing bed frame, which is an independently configured component, and the user only needs to place the purchased electrically adjustable supporting device on a bed frame below the mattress, and the height of the mattress above the supporting device is adjusted by adjusting the lifting height of the supporting device, so that the mattress of the common bed has the height adjusting function.
The structure of the electric adjustable supporting device in the related art comprises a fixed frame and a backrest bracket, wherein one end of the backrest bracket is rotatably connected with one end of the fixed frame through a rotating shaft, the fixed frame is horizontally arranged on a bed frame of a common bed, and the backrest bracket can rotate around the rotating shaft relative to the fixed frame, so that the backrest bracket is highly adjusted between an initial folded state and a final unfolded state; the supporting device capable of being adjusted electrically in the related art further comprises an electric push rod arranged between the fixing frame and the backrest support, one end of the electric push rod is hinged with the fixing frame, the other end of the electric push rod is hinged with the backrest support and is used for driving the backrest support to rotate and supporting the bearing of the backrest support, such as a back push bedstead in the prior application of the applicant with the publication number of CN 115500645A.
The electrically adjustable support device of the related art has the following drawbacks during actual use: firstly, in order to ensure that the electric push rod can provide enough lifting force for the backrest support when the backrest support is unfolded from the initial folding state, the electric push rod is obliquely arranged when the backrest support is positioned in the initial folding state, or/and the backrest support is obliquely arranged relative to the fixing frame when the backrest support is positioned in the initial folding state, so that the supporting device has thicker thickness, larger volume and non-compact structure after being folded, and the packaging and transportation cost is increased; secondly, when the load is unfolded, the rotating force of the load of the backrest bracket is converted by the axial thrust of the electric push rod, so that the load of the supporting device in the related art is too small; in addition, after the back support is unfolded, the support of the back support is completely provided by the self-locking force of the electric push rod, and the support stability of the back support is poor.
Disclosure of Invention
The application aims to overcome the defects of the related art, and provides the electric adjustment supporting device which has the advantages of thin thickness, small volume and compact structure in the initial folding state, and has the assistance support, large load and good support stability in the unfolding state.
The technical solution of the application is to provide an electrically adjustable support device with the following structure: it comprises
The base frame is provided with a sliding groove extending along the length direction, and a first end of the base frame is provided with a rotation connecting point;
the first end of the supporting plate is connected with the rotating connecting point and is used for enabling the supporting plate to rotate around the rotating connecting point so as to adjust the angle of the supporting plate relative to the base frame;
the first sliding block is in sliding fit with the sliding groove,
the electric driving mechanism is in transmission connection with the first sliding block and is used for driving the first sliding block to slide back and forth along the length direction of the sliding chute;
the support assembly comprises a support rod and a guide block connected to the base frame, a first end of the support rod is rotatably connected with the first sliding block, and a second end of the support rod is connected with a pushing piece contacted with the back surface of the support plate; the guide block is provided with a guide surface, wherein the guide surface is configured to guide the pushing piece to lift upwards and enable the pushing piece to drive the supporting plate to rotate when the electric driving mechanism drives the first sliding block to move towards the direction close to the rotating connecting point of the base frame;
the first power assisting mechanism comprises a first power assisting arm assembly rotatably connected to the pushing piece and a first supporting block connected in the chute; when the pushing piece is lifted upwards to a first position, the free end of the first power assisting arm assembly abuts against the first supporting block, and when the pushing piece is lifted upwards from the first position, the first power assisting arm assembly provides power for rotation of the supporting plate.
In some embodiments, the support device further comprises a second assist mechanism comprising a second assist arm assembly rotatably coupled to the pusher and a second support block coupled within the chute; the length of the second power-assisted arm assembly is greater than that of the first power-assisted arm assembly, and the second supporting block is arranged at a position closer to the rotating connection point of the base frame relative to the first supporting block; when the pushing piece is lifted upwards to a second position, the free end of the second power assisting arm assembly abuts against the second supporting block, and when the pushing piece is lifted upwards from the second position, the second power assisting arm assembly provides power for rotation of the supporting plate.
In some embodiments, the support device further comprises a third booster mechanism comprising a third booster arm assembly rotatably coupled to the pusher and a third support block coupled within the chute; the length of the third power-assisted arm assembly is greater than that of the second power-assisted arm assembly, and the third supporting block is arranged at a position closer to the rotating connection point of the base frame relative to the second supporting block; when the pushing piece is lifted upwards to a third position, the free end of the third power-assisted arm assembly abuts against the third supporting block, and when the pushing piece is lifted upwards from the third position, the third power-assisted arm assembly provides power for rotation of the supporting plate until the supporting plate rotates to a maximum angle.
In some embodiments, a second sliding block is slidably matched in the sliding groove, and the free end of the third booster arm component is rotatably connected with the second sliding block; when the pushing piece is lifted to a third position, the second sliding block abuts against the third supporting block.
In some embodiments, the guide block has a slope from low to high along a first direction of the chute, the slope forming the guide surface; the first direction is the direction in which the first sliding block slides towards the rotating connection point close to the base frame.
In some embodiments, the free end of the first booster arm assembly abuts the first support block when the pusher moves through the guide surface to the highest point of the guide surface.
In some embodiments, when the free end of the second booster arm assembly abuts against the second support block, the booster provided by the first booster arm assembly to the rotation of the support plate is lost; and when the free end of the third booster arm component is propped against the third supporting block, the booster provided by the second booster arm component for the rotation of the supporting plate disappears.
In some embodiments, the electric driving mechanism comprises a driving motor and a screw rod which is arranged along the length direction of the chute and can rotate, the first sliding block is connected to the screw rod in a threaded manner, and the circumferential rotation of the first sliding block is limited by the chute; the driving motor is in transmission connection with the screw rod and is used for driving the screw rod to rotate so that the first sliding block slides.
In some embodiments, the pushing element comprises a main shaft connected to the second end of the supporting rod and a roller connected to the main shaft, wherein the outer edge of the roller is propped against the back surface of the supporting plate.
In some embodiments, the facing surfaces of the first support block and the second support block are each provided with a concave arc surface, and the free ends of the first booster arm assembly and the second booster arm assembly are each provided with an arc shape.
In summary, compared with the related art, the electric-adjustment supporting device of the application has the following advantages:
when the electric driving mechanism of the electric adjusting supporting device drives the first sliding block to move along the length direction of the sliding groove towards the direction of a rotating connecting point close to the base frame, the supporting rod moves synchronously with the first sliding block, the pushing piece at the second end of the supporting rod is lifted upwards on the guiding surface under the guiding action of the guiding surface of the guiding block, at the moment, the guiding surface of the guiding block provides initial assistance for lifting the pushing piece, and the second end of the supporting rod is inclined upwards or lifted up and enables the pushing piece to drive the supporting plate to rotate, so that the angle of the supporting plate is changed; when the pushing piece is lifted upwards to a first position, the free end of the first booster arm assembly is propped against the first supporting block, at the moment, the position of the free end of the first booster arm assembly is limited, and along with the continued movement of the supporting rod, the pushing piece enables the first booster arm assembly to rotate upwards around the free end of the first booster arm assembly, so that when the pushing piece is lifted upwards continuously from the first position, the first booster arm assembly provides assistance for the rotation of the supporting plate. When the supporting plate of the electric adjusting supporting device rotates upwards from an initial state, the guide surface of the guide block provides initial assistance, and when the pushing piece continues to lift, the first assistance arm assembly provides one-stage assistance for the rotation of the supporting plate, so that the electric adjusting supporting device can provide multi-stage assistance for the rotation of the supporting plate, and the load of the supporting device is improved.
In addition, the guide block and the first booster arm assembly can provide support for the back of the support plate in the process of rotating and lifting the support plate, so that the support plate has booster support in a unfolded state and good support stability.
Furthermore, the electric adjusting supporting device adjusts the rotation angle of the supporting plate by sliding and linking the movement of the supporting rod through the first sliding block in the sliding groove on the base frame, and the second end of the supporting rod is prevented from being connected with the supporting plate; the supporting plate is in a folding state, the supporting rods are arranged in parallel with the sliding grooves, and the supporting plate is not interfered by the angles of the supporting rods in the folding state, so that the thickness between the supporting plate and the base frame is thin and the structure is compact in the folding state, and the electric adjusting supporting device is small in packaging size and low in packaging and transportation cost.
Drawings
Fig. 1 is a schematic structural view of an electrically adjustable support device according to some embodiments of the present application.
Fig. 2 is a schematic diagram of an assembled structure of an electrically adjustable support device according to some embodiments of the present application.
Fig. 3 is a schematic cross-sectional structural view of an electrically adjustable support device according to some embodiments of the present application.
Fig. 4 is an enlarged schematic view of a portion a in fig. 3.
Fig. 5 is a schematic diagram of an assembled configuration of a pusher of an electrically adjustable support device raised to a first position according to some embodiments of the present application.
Fig. 6 is a schematic cross-sectional view of a pusher of an electrically adjustable support device raised to a first position according to some embodiments of the present application.
Fig. 7 is a schematic diagram of an assembled structure of a pusher of an electrically adjustable support device raised to a second position according to some embodiments of the present application.
Fig. 8 is a schematic cross-sectional view of a pusher member of an electrically adjustable support device raised to a second position in accordance with some embodiments of the present application.
Fig. 9 is a schematic view of a pusher of an electrically adjustable support device raised to a third position according to some embodiments of the present application.
Fig. 10 is a schematic cross-sectional view of a pusher of an electrically adjustable support device raised to a third position according to some embodiments of the present application.
Fig. 11 is a schematic view of a pusher member of an electrically adjustable support device raised to a highest position according to some embodiments of the present application.
Fig. 12 is a schematic cross-sectional structural view of a pusher of an electrically adjustable support device raised to a highest position according to some embodiments of the present application.
Reference numerals illustrate:
1. the device comprises a supporting plate, 2, a base frame, 200, a sliding groove, 201, a rotation connecting point, 3, a first sliding block, 300, a second sliding block, 301, a threaded hole, 4, a screw rod, 400, a bearing, 5, a supporting rod, 6, a pushing piece, 600, a roller, 601, a main shaft, 7, a guiding block, 700, a guiding surface, 8, a first supporting block, 800, a second supporting block, 801, a third supporting block, 802, a concave arc surface, 9, a first assistance arm component, 900, a second assistance arm component, 901 and a third assistance arm component.
Detailed Description
First, it should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can adapt it as desired to suit a particular application.
In describing embodiments of the present application, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present application will be understood in detail by those of ordinary skill in the art.
In embodiments of the application, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
The application will be described in further detail with reference to the drawings and the specific examples.
See fig. 1-6;
the embodiment of the application discloses an electric-adjusting supporting device which is used for bed or sitting furniture, such as a bedstead arranged below a soft mattress, the bottom of the soft sofa mattress and the like; the structure comprises a base frame 2, a supporting plate 1 and an electric driving mechanism, wherein the base frame 2 is horizontally arranged, the base frame 2 is provided with a chute 200 extending along the length direction, and a first end of the base frame 2 is provided with a rotation connecting point 201; the support plate 1 is arranged above the base frame 2, and a first end of the support plate 1 is connected with a rotation connection point 201, so that the support plate 1 can rotate around the rotation connection point 201 to adjust the angle of the support plate 1 relative to the base frame 2; the rotation connection point 201 of the present embodiment may be a rotation shaft, a hinge pin, a rotation joint, etc., for connecting the support plate 1 and the base frame 2, and enabling the angle of the support plate 1 relative to the base frame 2 to be rotatably adjusted; the support plate 1 is in direct contact with the bottom of the mattress or cushion, and when the support plate 1 rotates relative to the base frame 2, the mattress or cushion can be driven to rotate synchronously.
In this embodiment, as shown in fig. 2, a first slider 3 is slidingly engaged with the chute 200, and an electric driving mechanism is in transmission connection with the first slider 3 and is used for driving the first slider 3 to slide reciprocally along the length direction of the chute 200; specifically, the electric drive mechanism may be a linear motor, a push rod motor, or other linear drive mechanism; however, in this embodiment, the electric driving mechanism includes a driving motor (not shown in the figure) and a screw 4 rotatably disposed along the length direction of the chute 200, the screw 4 is rotatably connected to the chute 200 by a bearing 400, a threaded hole 301 on the first slider 3 is screwed to the screw 4, and the circumferential rotation of the first slider 3 is limited by the chute 200; the driving motor is in transmission connection with the screw rod 4 and is used for driving the screw rod 4 to rotate so that the first sliding block 3 slides. In order to make the sliding of the first slider 3 smoother and the friction force between the first slider and the sliding groove 200 smaller, the outer side wall of the first slider 3 is provided with a convex rib which is convex outwards, the length direction of the convex rib is consistent with the sliding direction of the first slider 3, and the contact area between the first slider 3 and the sliding groove 200 is reduced by the convex rib, so that the sliding of the first slider 3 is free and has small noise. And in the present embodiment, the driving motor is located at the outer side of the base frame 2 and is installed at one end of the base frame 2.
In this embodiment, the electrically-adjustable supporting device further includes a supporting component and a first power assisting mechanism, as shown in fig. 2, where the supporting component includes a supporting rod 5 and a guiding block 7 connected to the base frame 2, a first end of the supporting rod 5 is rotatably connected with the first slider 3, and a second end of the supporting rod 5 is connected with a pushing member 6 contacting with the back of the supporting plate 1; the guide block 7 has a guide surface 700, wherein the guide surface 700 is configured to guide the pushing member 6 to lift up and enable the pushing member 6 to drive the support plate 1 to rotate when the electric driving mechanism drives the first slider 3 to move in a direction approaching the rotation connection point 201 of the base frame 2; when the first sliding block 3 drives the supporting rod 5 to synchronously move, the pushing piece 6 at the second end of the supporting rod 5 can be lifted upwards along the guide surface 700 due to the arrangement of the guide block 7, so that the second end of the supporting rod 5 is lifted upwards. The first power assisting mechanism comprises a first power assisting arm assembly 9 rotatably connected to the pushing piece 6 and a first supporting block 8 connected in the chute 200; when the pushing member 6 is lifted up to the first position, the free end of the first booster arm assembly 9 abuts against the first supporting block 8, and in this embodiment, when the pushing member 6 moves to the highest point of the guiding surface 700 through the guiding surface 700, the free end of the first booster arm assembly 9 abuts against the first supporting block 8. When the pushing member 6 is further lifted upwards from the first position, the first power assisting arm assembly 9 provides power for the rotation of the supporting plate 1.
It will be appreciated that in the present embodiment, when the support plate 1 is in the lowest folded position or horizontal position, the guide block 7 is located in front of the pushing member 6 and corresponds to the pushing member 6; the guide surface 700 of the guide block 7, i.e. the guide block 7, has a slope from low to high along the first direction of the chute 200, said slope forming said guide surface 700; wherein, the first direction is a direction in which the first slider 3 slides towards the rotational connection point 201 near the base frame 2. When the pushing piece 6 is at the initial position, the supporting rod 5 is parallel to the sliding groove 200, and the pushing piece 6 is just at the low position of the guide surface 700.
Referring to fig. 5 and 6, in the present embodiment, when the electric driving mechanism drives the first slider 3 to move along the length direction of the chute 200 toward the direction close to the rotation connection point 201 of the base frame 2, the strut 5 moves synchronously with the first slider 3, the pushing member 6 at the second end of the strut 5 is lifted upwards on the guiding surface 700 under the guiding action of the guiding surface 700 of the guiding block 7, at this time, the guiding surface 700 of the guiding block 7 provides initial assistance for lifting the pushing member 6, and the second end of the strut 5 is tilted or tilted upwards and makes the pushing member 6 drive the supporting plate 1 to rotate, so that the angle of the supporting plate 1 is changed; when the pushing member 6 is lifted up to the first position, the free end of the first booster arm assembly 9 abuts against the first supporting block 8, at this time, the position of the free end of the first booster arm assembly 9 is limited, and the pushing member 6 enables the first booster arm assembly 9 to rotate upwards around the free end of the first booster arm assembly 9 along with the continuous movement of the supporting rod 5, so that when the pushing member 6 is lifted up from the first position, the first booster arm assembly 9 provides assistance for the rotation of the supporting plate 1. When the supporting plate 1 of the electric adjusting supporting device rotates upwards from an initial state, the guide surface 700 of the guide block 7 provides initial assistance, and when the pushing piece 6 continues to lift, the first assistance arm assembly 9 provides one-stage assistance for the rotation of the supporting plate 1, so that the electric adjusting supporting device can provide multi-stage assistance for the rotation of the supporting plate 1, and the load of the supporting device is improved.
In this embodiment, as shown in fig. 6, the guide block 7 and the first booster arm assembly 9 can both provide support for the back of the support plate 1 during the process of rotating and lifting the support plate 1, so that the support plate 1 has booster support in the unfolded state and good support stability.
Referring again to the state shown in fig. 3, the electrically-adjusted supporting device adjusts the rotation angle of the supporting plate 1 by sliding the first sliding block 3 on the base frame 2 in the sliding groove 200 to move with the supporting rod 5, and prevents the second end of the supporting rod 5 from being connected with the supporting plate 1; when the supporting plate 1 is in a folded state, the supporting rods 5 are arranged in parallel with the sliding grooves 200, and the supporting plate 1 is not interfered by the angles of the supporting rods 5 in the folded state, so that the thickness between the supporting plate 1 and the base frame 2 is thin and the structure is compact when the supporting plate 1 is in the folded state, the packaging volume of the electrically-regulated supporting device is small, and the packaging and transportation cost is low.
In some embodiments, as shown in fig. 7 and 8, the support device further comprises a second booster mechanism comprising a second booster arm assembly 900 rotatably connected to the pushing member 6 and a second support block 800 connected within the chute 200; the length of the second booster arm assembly 900 is greater than that of the first booster arm assembly 9, and the second support block 800 is disposed closer to the rotation connection point 201 of the base frame 2 with respect to the first support block 8; when the pushing member 6 is lifted up from the first position to the second position, the free end of the second booster arm assembly 900 abuts against the second supporting block 800, and when the pushing member 6 is lifted up from the second position, the supporting rod 5 drives the second booster arm assembly 900 to rotate around the free end or the lower end of the second booster arm assembly 900 through the pushing member 6, and the second booster arm assembly 900 provides secondary booster for the rotation of the supporting plate 1. In this embodiment, when the free end of the second booster arm assembly 900 abuts against the second support block 800, the booster provided by the first booster arm assembly 9 to the rotation of the support plate 1 disappears; the second booster arm assembly 900 now provides support for the back of the support plate 1; therefore, the first power assisting arm assembly 9 provides power assistance to the support plate 1 and the second power assisting arm assembly 900 provides power assistance to the support plate 1 continuously and uninterruptedly, so that the support plate 1 rotates more stably.
In some embodiments, as shown in fig. 9 and 10, the support device further comprises a third booster mechanism, the third booster mechanism comprising a third booster arm assembly 901 rotatably connected to the pushing member 6 and a third support block 801 connected in the chute 200; the length of the third booster arm assembly 901 is greater than that of the second booster arm assembly 900, and the third support block 801 is disposed closer to the rotation connection point 201 of the base frame 2 with respect to the second support block 800; when the pushing member 6 is lifted up from the second position to the third position, the free end of the third booster arm assembly 901 abuts against the third supporting block 801, and when the pushing member 6 is lifted up from the third position, the supporting rod 5 drives the third booster arm assembly 901 to rotate around the free end or the lower end of the third booster arm assembly 901 through the pushing member 6, and the third booster arm assembly 901 provides three-level boosting for the rotation of the supporting plate 1 until the supporting plate 1 rotates to the maximum angle. In this embodiment, as shown in fig. 10, when the free end of the third booster arm assembly 901 abuts against the third supporting block 801, the booster provided by the second booster arm assembly 900 to the rotation of the supporting plate 1 disappears. The third booster arm assembly 901 now provides support to the back of the support plate 1; therefore, the second power assisting arm assembly 900 provides power assistance to the support plate 1 and the third power assisting arm assembly 901 provides power assistance to the support plate 1 continuously and uninterruptedly, so that the support plate 1 rotates more stably.
In this embodiment, the first position, the second position, the third position, and the position of the pushing member 6 when the support plate 1 rotates to the maximum angle refer to the height position of the pushing member 6 relative to the base frame 2, or the different positions of the support plate 1 when the support plate 1 is unfolded relative to the base frame 2, where the height of the second position is greater than the height of the first position, the height of the third position is greater than the height of the second position, and the height of the position of the pushing member 6 when the support plate 1 rotates to the maximum angle is greater than the height of the third position. The guide thus provides an initial assistance to the rotation of the support plate 1 when the support plate 1 of the electrically adjustable support device is lifted from the lowest position to the first position; when the support plate 1 is lifted from the first position to the second position, the first booster arm assembly 9 provides primary booster for the rotation of the support plate 1; when the support plate 1 is lifted from the second position to the third position, the second power assisting arm assembly 900 provides secondary power for the rotation of the support plate 1; when the support plate 1 is lifted from the third position to the maximum height position, the third booster arm assembly 901 provides three-level boosting for the rotation of the support plate 1; and the assistance at all levels are mutually continuous, so that the electric-adjustment supporting device increases the load of the supporting plate 1, and has good supporting stability in the whole unfolding process of the supporting plate 1.
It should be understood that, in this embodiment, the rotational connection between the first booster arm assembly 9, the second booster arm assembly 900, and the third booster arm assembly 901 and the pushing member 6 is a free rotational connection, that is, each booster arm assembly sags due to its own weight along with the lifting of the pushing member 6; or in other embodiments, the rotation angles of the first booster arm assembly 9, the second booster arm assembly 900 and the third booster arm assembly 901 may be set to adapt to the abutment with each support block.
Specifically, elastic components can be arranged between the first booster arm assembly 9, the second booster arm assembly 900, the third booster arm assembly 901 and the pushing piece 6, and the elastic components can enable the booster arm assemblies to have a tendency of rotating from the horizontal direction to the vertical downward direction; further, when each power-assisted arm assembly is positioned in the horizontal direction, the elastic component corresponding to each power-assisted arm assembly has elastic potential energy, and when each power-assisted arm assembly is positioned in the vertical direction, the elastic potential energy of the elastic component corresponding to each power-assisted arm assembly disappears, wherein two ends of the elastic component are respectively connected with the power-assisted arm assembly and the pushing piece 6; preferably, the elastic component is a torsion spring, one end of the torsion spring is clamped with each power-assisted arm assembly, and the other end of the torsion spring is clamped with the pushing piece 6.
In some embodiments, referring to fig. 3, 6, 8, 10 and 12, the sliding chute 200 is slidably fitted with a second slider 300, and the free end of the third booster arm assembly 901 is rotatably connected with the second slider 300; when the pushing member 6 is lifted up to the third position, the second slider 300 abuts against the third supporting block 801. The second slider 300 is in sliding fit with the sliding groove 200, and is linked with the second slider 300 to slide under the movement of the third booster arm assembly 901, the second slider 300 plays a guiding role on the third booster arm assembly 901, and the third booster arm assembly 901 can be prevented from being separated from the sliding groove 200 of the base frame 2, so that the structural stability and the safety are better.
In some embodiments, as shown in fig. 2, the pushing member 6 includes a main shaft 601 connected to the second end of the supporting rod 5 and a roller 600 connected to the main shaft 601, and an outer edge of the roller 600 abuts against the back surface of the supporting plate 1. When the roller 600 of the pushing piece 6 pushes the supporting plate 1 to rotate, the roller 600 can roll on the back of the supporting plate 1 to reduce friction; in the present embodiment, the first booster arm assembly 9, the second booster arm assembly 900, and the third booster arm assembly 901 are each rotatably connected with the main shaft 601. Moreover, the first booster arm assembly 9 includes two first booster arms respectively located at two sides of the roller 600, the second booster arm assembly 900 includes two second booster arms respectively located at two sides of the first booster arm, and the third booster arm assembly 901 is a monolithic sheet metal piece.
In some embodiments, as shown in fig. 5, the facing surfaces of the first support block 8 and the second support block 800 are each provided with a concave arc surface 802 that is concave, and the free ends of the first power assisting arm assembly 9 and the second power assisting arm assembly 900 are each provided with an arc shape. The arrangement not only enables the free ends of the first power assisting arm assembly 9 and the second power assisting arm assembly 900 to be propped against the supporting blocks more stably, but also facilitates the free ends of the first power assisting arm assembly 9 and the second power assisting arm assembly 900 to rotate, so that the flexibility is better.
Referring again to fig. 11 and 12, the state shown in fig. 11 and 12 is a state in which the third booster arm group provides the booster, and the first booster arm assembly 9 and the second booster arm assembly 900 are separated from the first support block 8 and the second support block 800, respectively.
In the description of the embodiments of the present application, it should be noted that, in the description of the present application, terms such as "inner", "outer", and the like, refer to directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or components must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present application.
In the description of the present application, the descriptions of the terms "one embodiment," "some embodiments," "in this embodiment," "specific examples," or "some examples," etc., mean that a particular feature, mechanism, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, mechanisms, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present application should be included in the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.

Claims (10)

1. An electrically adjustable support device, characterized in that: it comprises
The base frame is provided with a sliding groove extending along the length direction, and a first end of the base frame is provided with a rotation connecting point;
the first end of the supporting plate is connected with the rotating connecting point and is used for enabling the supporting plate to rotate around the rotating connecting point so as to adjust the angle of the supporting plate relative to the base frame;
the first sliding block is in sliding fit with the sliding groove,
the electric driving mechanism is in transmission connection with the first sliding block and is used for driving the first sliding block to slide back and forth along the length direction of the sliding chute;
the support assembly comprises a support rod and a guide block connected to the base frame, a first end of the support rod is rotatably connected with the first sliding block, and a second end of the support rod is connected with a pushing piece contacted with the back surface of the support plate; the guide block is provided with a guide surface, wherein the guide surface is configured to guide the pushing piece to lift upwards and enable the pushing piece to drive the supporting plate to rotate when the electric driving mechanism drives the first sliding block to move towards the direction close to the rotating connecting point of the base frame;
the first power assisting mechanism comprises a first power assisting arm assembly rotatably connected to the pushing piece and a first supporting block connected in the chute; when the pushing piece is lifted upwards to a first position, the free end of the first power assisting arm assembly abuts against the first supporting block, and when the pushing piece is lifted upwards from the first position, the first power assisting arm assembly provides power for rotation of the supporting plate.
2. An electrically adjustable support device according to claim 1, wherein: the supporting device further comprises a second power-assisted mechanism, wherein the second power-assisted mechanism comprises a second power-assisted arm assembly rotatably connected to the pushing piece and a second supporting block connected in the sliding groove; the length of the second power-assisted arm assembly is greater than that of the first power-assisted arm assembly, and the second supporting block is arranged at a position closer to the rotating connection point of the base frame relative to the first supporting block; when the pushing piece is lifted upwards to a second position, the free end of the second power assisting arm assembly abuts against the second supporting block, and when the pushing piece is lifted upwards from the second position, the second power assisting arm assembly provides power for rotation of the supporting plate.
3. An electrically adjustable support device according to claim 2, wherein: the supporting device further comprises a third power assisting mechanism, wherein the third power assisting mechanism comprises a third power assisting arm assembly rotatably connected to the pushing piece and a third supporting block connected in the sliding groove; the length of the third power-assisted arm assembly is greater than that of the second power-assisted arm assembly, and the third supporting block is arranged at a position closer to the rotating connection point of the base frame relative to the second supporting block; when the pushing piece is lifted upwards to a third position, the free end of the third power-assisted arm assembly abuts against the third supporting block, and when the pushing piece is lifted upwards from the third position, the third power-assisted arm assembly provides power for rotation of the supporting plate until the supporting plate rotates to a maximum angle.
4. An electrically adjustable support device according to claim 3, wherein: a second sliding block is in sliding fit in the sliding groove, and the free end of the third booster arm component is rotatably connected with the second sliding block; when the pushing piece is lifted to a third position, the second sliding block abuts against the third supporting block.
5. An electrically adjustable support device according to claim 1, wherein: the guide block has a slope from low to high along a first direction of the chute, the slope forming the guide surface; the first direction is the direction in which the first sliding block slides towards the rotating connection point close to the base frame.
6. An electrically adjustable support device according to claim 5, wherein: when the pushing piece moves to the highest point of the guide surface through the guide surface, the free end of the first power assisting arm assembly abuts against the first supporting block.
7. An electrically adjustable support device according to claim 3, wherein: when the free end of the second booster arm component is propped against the second supporting block, the booster provided by the first booster arm component for the rotation of the supporting plate disappears; and when the free end of the third booster arm component is propped against the third supporting block, the booster provided by the second booster arm component for the rotation of the supporting plate disappears.
8. An electrically adjustable support device according to claim 1, wherein: the electric driving mechanism comprises a driving motor and a screw rod which is arranged along the length direction of the sliding groove and can rotate, the first sliding block is connected with the screw rod in a threaded manner, and the circumferential rotation of the first sliding block is limited by the sliding groove; the driving motor is in transmission connection with the screw rod and is used for driving the screw rod to rotate so that the first sliding block slides.
9. An electrically adjustable support device according to claim 1, wherein: the pushing piece comprises a main shaft connected to the second end of the supporting rod and a roller connected to the main shaft, and the outer edge of the roller is abutted against the back surface of the supporting plate.
10. An electrically adjustable support device according to claim 2, wherein: the opposite sides of the first supporting block and the second supporting block are respectively provided with a concave cambered surface which is concave, and the free ends of the first power assisting arm component and the second power assisting arm component are respectively provided with an arc shape.
CN202310799638.5A 2023-06-30 2023-06-30 Electric adjustment supporting device Pending CN116711944A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310799638.5A CN116711944A (en) 2023-06-30 2023-06-30 Electric adjustment supporting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310799638.5A CN116711944A (en) 2023-06-30 2023-06-30 Electric adjustment supporting device

Publications (1)

Publication Number Publication Date
CN116711944A true CN116711944A (en) 2023-09-08

Family

ID=87871474

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310799638.5A Pending CN116711944A (en) 2023-06-30 2023-06-30 Electric adjustment supporting device

Country Status (1)

Country Link
CN (1) CN116711944A (en)

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