CN-224219754-U - Writing board lifting structure, universal board, combined board and multifunctional board

Abstract

The utility model relates to the technical field of office and teaching equipment, in particular to a writing board lifting structure, a universal board, a combined board and a multifunctional board. The lifting structure comprises a fixing frame, a supporting mechanism and a lifting frame, wherein the fixing frame is fixedly arranged, the lifting frame is used for installing a writing board, the lifting frame is slidably arranged on the fixing frame and can move up and down relative to the fixing frame, the axis of the supporting mechanism and the horizontal plane form a preset angle range, the top end of the supporting mechanism is rotationally connected with the fixing frame, the bottom end of the supporting mechanism is rotationally connected with the lifting frame, and the resistance of the fixing frame to the lifting frame can enable the lifting frame to hover at any position in the vertical direction. The utility model obviously reduces the overall weight and simplifies the installation flow, and realizes the technical effects of smooth lifting process and stable hovering at any position of the writing board.

Inventors

• LI QINGBO
• ZHANG YANXUE
• WEI LILIANG

Assignees

• 山东蓝贝易书信息科技有限公司

Dates

Publication Date

20260512

Application Date

20250527

Claims (14)

1. 1. The writing board lifting structure is characterized by comprising a fixed frame, a supporting mechanism and a lifting frame; The fixing frame is fixedly arranged, the lifting frame is used for installing the writing board, and the lifting frame is slidably arranged on the fixing frame and can move up and down relative to the fixing frame; The axis of supporting mechanism personally submits the angle range of predetermineeing with the level, supporting mechanism's top with the mount rotates to be connected, supporting mechanism's bottom with the crane rotates to be connected, the mount can make the crane hover in any position of vertical direction to the resistance of crane.
2. 2. The tablet lifting structure of claim 1, wherein the predetermined angle range is 15 ° -50 °.
3. 3. The tablet lifting structure of claim 1, wherein F 0 /G = x is set, wherein F 0 is the support force provided by the gas spring, G is the total weight of the tablet and the crane, and x ranges from 1.2 to 1.4.
4. 4. The tablet lifting structure of claim 1, wherein the top end of the support mechanism is rotatably connected to the top frame of the mount and the bottom end is rotatably connected to the side frame of the lifting frame; Or the top end of the supporting mechanism is rotationally connected with the side frame of the fixing frame, and the bottom end of the supporting mechanism is rotationally connected with the bottom frame of the lifting frame.
5. 5. The tablet lifting structure of claim 4, wherein the support mechanism comprises a support bar and a fixing base, the fixing base is hinged at the top end and the bottom end of the support bar, the fixing base at the top end is fixedly connected with the lifting frame, and the fixing base at the bottom end is fixedly connected with the fixing frame.
6. 6. The tablet lifting structure of claim 5, wherein the hinge point of the support bar and the fixing base is mounted by a pin shaft matched with a bearing.
7. 7. The tablet lifting structure of claim 1, wherein the support mechanism comprises a support rod that is a gas spring or a hydraulic damper rod.
8. 8. The tablet lifting structure of claim 7, wherein the gas spring comprises a cylinder, a piston, and a piston rod, the cylinder is filled with gas, the piston is mounted in the cylinder without an inner seal ring mounted between the piston and the cylinder, and one end of the piston rod is connected to the piston.
9. 9. The tablet lifting structure of claim 8, wherein the cylinder is rotatably coupled to the lifting frame and the piston rod is rotatably coupled to the fixed frame; Or the cylinder body is rotationally connected with the fixing frame, and the piston rod is rotationally connected with the lifting frame.
10. 10. The writing board lifting structure of claim 1, wherein the fixing frame comprises side frames on the left side and the right side and bending plates on the upper end and the lower end, the bending plates comprise transverse plates and longitudinal plates, mounting holes for fixing are formed in the transverse plates, adjusting holes are formed in the longitudinal plates, the adjusting holes are horizontally arranged long strip holes, and the bending plates are mounted on the side frames through the long strip holes.
11. 11. The tablet lifting structure of claim 10, wherein a lifting guide groove is formed in the back surface of the lifting frame, and lifting guide wheel sets are mounted in front of the side frames, and each lifting guide wheel set comprises at least two guide wheels which are arranged in a left-right staggered manner, and the lifting guide wheel sets slide in the lifting guide groove.
12. 12. The universal board is characterized by comprising a writing board and the lifting structure of the writing board, wherein a transverse moving guide groove is formed in the back surface of the writing board, a transverse moving guide wheel set is arranged in front of the lifting frame, the transverse moving guide wheel set comprises at least two guide wheels which are arranged in an up-down staggered mode, and the transverse moving guide wheel set slides in the transverse moving guide groove.
13. 13. A composite board comprising at least two gimbaled plates according to claim 12, all being arranged in the same vertical plane.
14. 14. A multifunctional board, which is characterized by comprising a display screen and the universal board as claimed in claim 12, wherein the universal board is positioned at the left side and the right side of the display screen, or the universal board is positioned at the upper side and the lower side of the display screen.

Description

Writing board lifting structure, universal board, combined board and multifunctional board Technical Field The utility model relates to the technical field of office and teaching equipment, in particular to a writing board lifting structure, a universal board, a combined board and a multifunctional board. Background The writing board is widely applied to the fields of education, office, exhibition and the like, and the traditional writing board is mostly of fixed design, and can not adapt to the writing demands of users with different heights or different scenes. In order to solve the problem, a liftable writing board structure appears in the prior art, and the height of the writing board is adjusted through the lifting structure, so that the flexibility and convenience of use are improved. The writing board lifting structure is mainly used for adjusting the height of the writing board so as to adapt to the requirements of users with different heights or switch writing areas in teaching and meeting scenes. The key principle is that the gravity of the writing board and the lifting frame is counteracted by the mechanical balance device, so that the labor-saving operation and the position hovering function in the lifting process are realized. The existing lifting structure is a lifting structure based on a balancing weight and mainly comprises a fixing frame, a lifting frame, the balancing weight and a stay wire assembly. The fixing frame is vertically arranged on the wall surface or the bracket, and the lifting frame is in sliding connection with the fixing frame through the guide rail so as to bear the writing board. The balancing weight is linked with the lifting frame by the stay wire by bypassing the roller, when the lifting frame descends, the balancing weight ascends, otherwise, the balancing weight descends. The structure utilizes the gravity of the balancing weight to offset the gravity of the writing board and the lifting frame, thereby realizing the balance of lifting operation. The lifting structure in the form of a counterweight has the following problems: ① The weight of the whole body is overlarge, namely the weight block needs to be matched with the weight of the writing board and the lifting frame, so that the total mass of the device is obviously increased, and the transportation and installation costs are high; ② The installation and the debugging are complicated, namely the length of the stay wire and the weight of the balancing weight are required to be accurately adjusted to ensure balance, the operation is time-consuming, and potential safety hazards are easily caused by debugging errors; ③ The reliability is insufficient, the pull wire is easy to wear or break in long-term use, and the balancing weight can cause safety accidents due to stall and fall; ④ The space occupation is large, the balancing weight needs to be additionally installed, and the compactness of the structure is limited. Disclosure of utility model Aiming at the defects existing in the prior art, the embodiment of the utility model aims to provide a light-weight and high-safety writing board lifting structure, which is characterized in that a supporting mechanism is used for replacing a traditional balancing weight component, so that the overall weight is remarkably reduced, and the installation process is simplified. Meanwhile, by adopting the inclined arrangement scheme of the supporting mechanism, the mechanical component force of the supporting mechanism on the lifting frame is dynamically adjusted, the problem that the lifting is heavier due to the vertical arrangement of the supporting mechanism is solved, and the technical effects of smooth lifting process and stable hovering at any position of the writing board are finally realized. In order to achieve the above object, the embodiment of the present utility model provides the following technical solutions: The writing board lifting structure comprises a fixing frame, a supporting mechanism and a lifting frame, wherein the fixing frame is fixedly arranged, the lifting frame is used for installing a writing board and is slidably arranged on the fixing frame and can move up and down relative to the fixing frame, the axis of the supporting mechanism and the horizontal plane form a preset angle range, the top end of the supporting mechanism is rotationally connected with the fixing frame, the bottom end of the supporting mechanism is rotationally connected with the lifting frame, and the resistance of the fixing frame to the lifting frame can enable the lifting frame to hover at any position in the vertical direction. Optionally, the preset angle ranges from 15 ° to 50 °. Optionally, F 0/g=x is set, where F 0 is the supporting force provided by the gas spring, G is the total weight of the writing board and the lifting frame, and x ranges from 1.2 to 1.4. Optionally, the top end of the supporting mechanism is rotatably connected with the top frame of the fixing frame,