WO2022100142A1

WO2022100142A1 - Labor-saving adjusting mechanism for display support, and corresponding display support

Info

Publication number: WO2022100142A1
Application number: PCT/CN2021/107532
Authority: WO
Inventors: 尤小东; 胡浩展
Original assignee: 尤小东
Priority date: 2020-11-13
Filing date: 2021-07-21
Publication date: 2022-05-19
Also published as: CN112253944A

Abstract

A labor-saving adjusting mechanism for a display support, the mechanism comprising a rolling bearing (1), wherein the rolling bearing (1) is connected to a threaded sliding block (3) of the display support, an axial direction of the rolling bearing (1) is arranged to be perpendicular to an axial direction of a screw rod (4), and an outer rolling surface of the rolling bearing (1) comes into contact with a lower connecting member (6), such that when the threaded sliding block (3) is adjusted by means of the screw rod (4) to move vertically, the rolling bearing (1) rolls along the lower connecting member (6).

Description

Effortless adjustment mechanism for monitor stand and corresponding monitor stand

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the Chinese patent application for invention with application number 202011272833.5 filed on November 13, 2020, the content of which is incorporated into this application by reference.

technical field

The present invention relates to the technical field of display brackets, in particular to a labor-saving adjustment mechanism for a display bracket and a corresponding display bracket.

Background technique

At present, almost all monitor brackets on the market have similar lever force adjustment mechanisms, consisting of a screw rod, a threaded slider and an attachment screw. The screw is compressed by the stop screw, and then the screw is adjusted by a wrench to drive the threaded slider to adjust the working angle of the mechanical spring or gas spring, so as to adjust the bearing capacity of the mechanical spring or gas spring arm.

With the increasing size and quality of monitors on the market, the load-bearing requirements for monitor brackets also increase. The current force value adjustment mechanism needs to be adjusted by a wrench after increasing the force value of the mechanical spring or gas spring. A lot of force, even difficult to adjust, is a very bad experience for the user.

SUMMARY OF THE INVENTION

In view of the above technical problems, the present invention provides a labor-saving adjustment mechanism for a monitor stand and a corresponding monitor stand, which can allow users to easily adjust the force value of the mechanical spring or gas spring force arm through a wrench, and can even cancel the wrench. It can be adjusted directly by the user's hand by carrying a coin or making the screw head into a knob style.

In order to achieve the above-mentioned purpose, the technical scheme of the labor-saving adjustment mechanism for the display stand provided by the present invention is as follows:

Including a rolling bearing, the rolling bearing is connected with the threaded slider of the display bracket, the axial direction of the rolling bearing is arranged to be perpendicular to the axial direction of the screw, and the outer rolling surface of the rolling bearing is in contact with the lower connecting piece, The rolling bearing rolls along the lower connecting piece when the threaded slider moves up and down by adjusting the screw rod.

Preferably, the labor-saving adjustment mechanism further includes a first connecting shaft, the rolling bearing is connected with the threaded slider through the first connecting shaft, and the first connecting shaft is perpendicular to the screw rod. The direction passes through the rolling bearing arrangement.

Preferably, the two side ends of the rolling bearing are directly and fixedly connected to the threaded sliding block.

Preferably, the labor-saving adjustment mechanism includes a bushing, and the bushing is arranged outside the upper end of the screw rod.

Preferably, the labor-saving adjustment mechanism comprises a groove and a fitting piece matched with the groove, the fitting piece comprises a pair of oppositely arranged second connecting shafts, and the groove is along the The circumferential direction of the screw is arranged, one end of the second connecting shaft is connected with the lower connecting piece, and the other end of the second connecting shaft is in line contact or point contact with the groove.

Preferably, the pair of second connecting shafts are arranged on both sides of the screw.

Preferably, one end of the pair of second connecting shafts is connected.

Preferably, the threaded slider has a first end connected with the elastic member of the display bracket and a second end connected with the rolling bearing, the first end is connected with the The second end is relatively arranged.

The present invention also provides a display stand, the main feature of which is that the display stand is provided with the labor-saving adjustment mechanism.

The labor-saving adjustment mechanism for the display bracket and the corresponding display bracket of the present invention generate very little friction, and the force arm of the display bracket can be easily adjusted.

Description of drawings

FIG. 1 is an exploded schematic view of the display stand of the present invention.

2 is a cross-sectional view of the display stand of the present invention.

FIG. 3 is a cross-sectional view along the section A-A in FIG. 2 .

Detailed ways

In order to describe the technical content of the present invention more clearly, further description will be given below with reference to specific embodiments.

As shown in Figures 1 to 3, it is a partial schematic diagram of the display stand provided by the present invention, which includes an elastic member 8, a lower connecting member 6, a screw 4, a threaded slider 3, etc., the lower ends of the upper arm and the lower arm and the lower connecting member 6 is connected, the upper ends of the upper arm and the lower arm are connected with the upper connecting piece to install the display, the elastic piece 8 can be a mechanical spring or a gas spring, and is arranged between the upper arm and the lower arm, and the lower end of the elastic piece 8 is connected with the threaded slider 3 The first end of the screw is connected, so that when the adjusting screw 4 is rotated, the movement of the threaded slider 3 is driven to adjust. The present invention provides a labor-saving adjustment mechanism in the display bracket, including a rolling bearing 1, the rolling bearing 1 is connected with the second end of the threaded slider 3 of the display bracket, and the axial direction of the rolling bearing 1 is arranged to be perpendicular to the screw 4, the outer rolling surface of the rolling bearing 1 is in contact with the lower connecting piece 6, so that when the threaded slider 3 moves up and down by adjusting the screw 4, the rolling bearing 1 moves along the lower connecting piece 6. scroll.

Specifically, the rolling bearing 1 can be in contact with the inner wall of the lower connecting piece 6. When the screw 4 is rotated to adjust the threaded slide block 3 to move up and down, the threaded slide block 3 rolls against the inner wall of the lower connecting piece 6 through the rolling bearing 1. The force of the mechanical spring or gas spring is directly transmitted to the lower connecting piece in contact with it through the rolling bearing on the threaded slider. Sliding friction, the friction force generated will be much smaller.

Sliding friction force calculation formula: f1＝μ×F

Calculation formula of rolling friction force: M=N×μk=f2×r; f2=N×μk/r

Generally, the friction coefficient between the existing screw and the threaded slider is μ≈0.15; the rolling friction coefficient μk≈0.05mm of the structure of the present invention, and the radius r of the needle roller bearing used in the present invention is r=5mm.

In the case of using the same mechanical spring or gas spring, N=F; f2/f1=(N×μk/r)/(μ×F)=μk/(μ×r)=0.07, which is equivalent to reducing the friction force as small as 7% of the original.

Therefore, under the same force of the mechanical spring and the gas spring, the total frictional force generated by the rotating screw of the mechanism of the present invention is small.

In the specific embodiment provided by the present invention, the labor-saving adjustment mechanism further includes a first connecting shaft 2, and the rolling bearing 1 is connected with the threaded slider 3 through the first connecting shaft 2, so The first connecting shaft 2 is arranged through the rolling bearing 1 along the axial direction perpendicular to the screw 4 . Among them, two pairs of rolling bearings and corresponding first connecting shafts are provided, and other numbers of rolling bearings and first connecting shafts can also be provided as required.

In addition to the connection method in the above-mentioned specific embodiment, the two side ends of the rolling bearing 1 can also be directly fixedly connected to the threaded slider 3, for example, directly welded.

For the rolling bearing in the present invention, it can be any type of rolling bearing that provides rolling friction, such as needle roller bearings, plastic or metal cylindrical rollers.

As shown in FIG. 1 , the rolling bearing 1 is connected with the second end of the threaded slider, the lower end of the elastic member is connected with the first end of the threaded slider, and the first end is connected to the first end of the threaded slider. The second ends are arranged relative to each other.

As shown in FIGS. 1 to 3 , the labor-saving adjustment mechanism further includes a bushing 7 , and the bushing 7 is sleeved on the outside of the upper end of the screw 4 . The bushing can be made of plastic. The bushing 7 can be embedded in the lower connecting piece 6, which can reduce the frictional force occasionally contacted by the head of the screw 4 during rotation.

As shown in Figures 1 to 3, the labor-saving adjustment mechanism further includes a groove 9 and a matching piece matched with the groove 9, and the matching piece includes a pair of oppositely arranged second connecting shafts 5, The groove 9 is arranged along the circumference of the lower end of the screw 4, one end of the second connecting shaft 5 is connected with the lower connecting piece 6, and the other side of the second connecting shaft 5 is connected. One end is in line contact or point contact with the groove 9 . A pair of second connecting shafts are respectively arranged on both sides of the lower end of the screw rod. Therefore, the screw 4 is fixed on the lower connecting member through the second connecting shaft, and the frictional force generated during the rotation adjustment of the screw 4 is reduced through line contact or point contact.

In the specific embodiment provided by the present invention, the groove 9 is arranged along the axial direction of the lower end of the screw 4, and can also be arranged in the axial direction of other positions of the screw.

In addition to the pair of second connecting shafts arranged in parallel in the specific embodiment provided by the present invention, one end of the pair of second connecting shafts can also be connected, that is, a C-type clip, and the body of the C-type clip is on the lower connecting piece , the two free ends are stuck in the groove.

Wherein, both the first connecting shaft and the second connecting shaft can be in the form of cylindrical pins, and the first connecting shaft is shorter than the second connecting shaft.

In this specification, the invention has been described with reference to specific embodiments thereof. However, it will be evident that various modifications and changes can still be made without departing from the spirit and scope of the invention. Accordingly, the description is to be regarded as illustrative rather than restrictive.

Claims

A labor-saving adjustment mechanism for a display stand, characterized in that it includes a rolling bearing, the rolling bearing is connected with a threaded slider of the display stand, and the axial direction of the rolling bearing is arranged to be perpendicular to the axial direction of the screw, The outer rolling surface of the rolling bearing is in contact with the lower connecting piece, so that the rolling bearing rolls along the lower connecting piece when the threaded sliding block moves up and down through the adjusting screw.
The labor-saving adjustment mechanism for a display stand according to claim 1, wherein the labor-saving adjustment mechanism further comprises a first connecting shaft, and the rolling bearing is connected to the thread through the first connecting shaft. The sliding blocks are connected, and the first connecting shaft is arranged through the rolling bearing along the axial direction perpendicular to the screw.
The labor-saving adjustment mechanism for a display stand according to claim 1, wherein the two side ends of the rolling bearing are directly and fixedly connected to the threaded slider.
The labor-saving adjustment mechanism for a display stand according to claim 1, wherein the labor-saving adjustment mechanism comprises a bushing, and the bushing is sleeved outside the upper end of the screw rod.
The labor-saving adjustment mechanism for a display stand according to any one of claims 1 to 4, wherein the labor-saving adjustment mechanism comprises a groove and a fitting part matched with the groove, the The matching piece includes a pair of oppositely arranged second connecting shafts, the grooves are arranged along the circumference of the screw, one end of the second connecting shaft is connected with the lower connecting piece, the The other end of the second connecting shaft is in line contact or point contact with the groove.
The labor-saving adjustment mechanism for a display stand according to claim 5, wherein the pair of second connecting shafts are arranged on both sides of the screw rod.
The labor-saving adjustment mechanism for a display stand according to claim 5, wherein one end of the pair of second connecting shafts is connected.
The labor-saving adjustment mechanism for a display stand according to claim 1, wherein the threaded slider has a first end connected with the elastic member of the display stand, and a first end connected with the rolling bearing. The second end of the connection is arranged opposite to the first end and the second end.
A monitor stand, characterized in that the monitor stand is provided with the labor-saving adjustment mechanism according to any one of claims 1 to 8.