CN113074305A

CN113074305A - Steel construction display support

Info

Publication number: CN113074305A
Application number: CN202010009444.7A
Authority: CN
Inventors: 罗成一; 余斌; 杨新华
Original assignee: SHANGHAI THINKWISE INDUSTRIAL CO LTD; Fujian Jiuzhao Intelligent Technology Co ltd
Current assignee: SHANGHAI THINKWISE INDUSTRIAL CO LTD; Fujian Jiuzhao Intelligent Technology Co ltd
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2021-07-06
Anticipated expiration: 2040-01-06
Also published as: CN113074305B

Abstract

The invention relates to a steel structure display bracket, which comprises a supporting seat, a suspension seat, a cantilever assembly and a spring assembly, wherein the suspension seat is arranged on the supporting seat; two ends of the cantilever assembly are respectively hinged on the supporting seat and the suspension seat to form a four-bar linkage mechanism, and the four-bar linkage mechanism provides pretightening force by the spring assembly and can be kept in a bearing state; wherein: the cantilever assembly comprises an upper cantilever and a lower cantilever, and an arc-shaped hook is arranged at the lower end of the upper cantilever; one end of the spring component is hung on the arc hook through the rolling shaft, the other end is hung on the lower part of the supporting seat, and the lower end part of the supporting seat is provided with a base which can clamp the surface of an object or a standing object. The spring assembly is skillfully moved out of the cantilever assembly, so that the adjustment is more visual and convenient, and the cantilever assembly is lighter; the spring assembly acts on the hook arc of the upper cantilever arc hook member, and when the support cantilever assembly is adjusted towards a low position, the pretightening force of the spring assembly is increased and is timely balanced with the bearing moment.

Description

Steel construction display support

The technical field is as follows:

the invention belongs to the field of display supports, and particularly relates to a steel structure display support, in particular to a scheme that a cantilever and a supporting seat both adopt steel plates.

Background art:

the adjusting bracket is developed along with the development of the liquid crystal display, compared with a fixed base of the display, the adjusting bracket not only has the functions of up-down and left-right adjustment, but also can meet the requirements of far-near stretching, is flexible to use and convenient to adjust, is popular in the market, and promotes the continuous optimization of the structure. The adjusting principle of the bracket is also the method of matching the four-bar linkage with the spring assembly, and the parts are reinforced without considering the difference of load bearing.

Like patent application No. 201610724374.7, disclose an adjust supporting mechanism of display support, including adjusting seat, mount pad, arm and elastic component, the arm both ends respectively with adjust the seat and the mount pad is articulated to be connected, the both ends of elastic component elastic stretching direction respectively with adjust seat and mount pad articulated, and the elastic component elastic stretching direction has the contained angle that is greater than the zero degree with arm extending direction. When the height of the arm is adjusted, the elastic part moves up and down, so that a bidirectional bell mouth is required to be designed at the hinged part of the elastic part and the adjusting seat, and the rigidity strength of the adjusting seat is reduced; and the end part of the screw rod is restrained in the jack of the adjusting seat through the adjusting shaft, and the pretightening force of the elastic piece is adjusted by rotating the screw rod. The elastic part in the structure is arranged in the upper support and the support of the arm, so that the arm is heavy, large in size and not light enough. This is also a common means of designing existing rack products.

How to improve the defects of the existing structure is the object of the invention.

The invention content is as follows:

the invention aims to provide a steel structure display bracket which is convenient to adjust and provided with a spring assembly outside a cantilever assembly; and a secondary purpose is that the bracket body is machined from sheet steel.

The technical scheme of the invention is realized as follows: a steel structure display support comprises a supporting seat, a suspension seat, a cantilever assembly and a spring assembly; two ends of the cantilever assembly are respectively hinged to the supporting seat and the suspension seat to form a four-bar linkage mechanism, and the four-bar linkage mechanism provides pretightening force by the spring assembly and can be kept in a bearing state; the method is characterized in that: the cantilever assembly comprises an upper cantilever and a lower cantilever, and an arc-shaped hook is arranged at the lower end of the upper cantilever; one end of the spring assembly is hung on the arc-shaped hook through the rolling shaft, and the other end of the spring assembly is hung on the lower part of the supporting seat; the lower end of the supporting seat is provided with a base which can clamp the surface of an object or a standing object.

The supporting seat, the upper cantilever, the lower cantilever and the arc-shaped hook are sheets formed by punching and shearing a steel plate, are in a pair of separated structures and are locked into a whole by bolts; the suspension seat is clamped between the two upper cantilevers and the two lower cantilevers and is hinged and positioned by respective axial position screws; the two arc-shaped hook pieces are correspondingly clung to the outer sides of the cantilevers on the two pieces and are locked into a whole by bolts; the upper ends of the two supporting seats are clamped outside the two arc-shaped hook pieces and are hinged and positioned outside the two lower cantilevers and the two upper cantilevers by shaft position screws; the two ends of the rolling shaft are correspondingly lapped on the two arc-shaped hook parts, the spring assembly is positioned in the middle of the two supporting seats, and the lower end part of the spring assembly is hung on a bolt for locking the two supporting seats.

The height of the supporting seats is not less than 200mm, the upper end part of the supporting seats is within 60mm and used for hinging and positioning the upper cantilever and the lower cantilever, a limiting seat is arranged below a hinging point of the lower cantilever, and the limiting seat is clamped and locked between the two supporting seats; the spring assembly penetrates through the limiting seat and is restrained by the limiting seat, so that the rolling shaft at the upper end part can slide or roll on the hook arc of the arc-shaped hook part to adapt to the change of the angle of the cantilever assembly.

The spring assembly comprises an elastic body, an adjusting screw rod, a nut column and a sliding shaft; one end of the elastic body is hung at the lower part of the supporting seat, and the other end of the elastic body is fixed with one end of the adjusting screw rod; the other end of the adjusting screw is in threaded connection with the nut column, so that the tightness can be adjusted; the other end of the nut column is connected with one end of a sliding shaft, the other end of the sliding shaft is hung on the rolling shaft, and the nut column is at least kept to rotate freely so as to adjust the tightness of the spring assembly; the sliding shaft penetrates through the limiting seat and can slide axially at least.

The nut column and the sliding shaft are connected with one of the following structures: firstly, a nut column and a sliding shaft are fixed through a pin, a T-shaped head is processed at the upper end part of the sliding shaft, the T-shaped head is hung at the upper end part and the lower end part of a rolling shaft and inserted into an axial hole of the nut column after penetrating through a radial through hole of the rolling shaft, the T-shaped head is fixed by the pin which is inserted transversely, and the sliding shaft can rotate and slide axially relative to a limiting seat; secondly, the nut column is connected with the sliding shaft through threads, threads with opposite double-head directions are machined on the nut column, and the threads of the sliding shaft are opposite to those of the adjusting screw rod; the upper end part of the sliding shaft is provided with a T-shaped head, and after the T-shaped head penetrates through the radial through hole of the rolling shaft, the T-shaped head is hung on the rolling shaft and is limited to rotate; or a ring sleeve is processed at the upper end part of the sliding shaft and sleeved on the rolling shaft.

Grooved wheels are arranged at two ends of the rolling shaft and are lapped on the two arc-shaped hook pieces through the grooved wheels.

The spring assembly is skillfully moved out of the cantilever assembly, so that the adjustment is more visual and convenient, and the cantilever assembly is lighter; the spring assembly acts on a hook arc of the upper cantilever arc-shaped hook member, and when the support cantilever assembly is adjusted to a low position, the pre-tightening force of the spring assembly is increased and is timely balanced with the bearing moment; the supporting seat can be flexibly matched with a clamp or a counterweight base, and can meet the requirements of front and back pitching and left and right direction adjustment through two-axis positioning.

Description of the drawings:

the invention is further illustrated with reference to the following specific figures:

FIG. 1 is a schematic view of a steel structure display stand

FIG. 2 is an exploded view of a steel display stand

FIG. 3 is a schematic view of the high-position support of the steel structure display bracket

FIG. 4 is a schematic view of a lower support of a steel structure display stand

Wherein

1-supporting seat 11-limiting seat 2-suspension seat 3-cantilever assembly

31-upper arm 32-lower arm 33-arc hook 331-hook arc

4-spring assembly 41-elastic body 42-adjusting screw 43-nut column

44-sliding shaft 441-T-shaped head 45-rolling shaft 451-grooved wheel

46-pin 5-base 6-bolt 7-axial position screw

The specific implementation mode is as follows:

referring to fig. 1 to 4, the bracket for a steel structure display includes a supporting base 1, a suspension base 2, a cantilever assembly 3, a spring assembly 4, and a base 5 for fixing the supporting base.

A boom assembly 3 comprising an upper boom 31, a lower boom 32 and an arc hook 33; the arc-shaped hook 33 is provided at the lower end of the upper arm 31 to swing following the upper arm 31. The two ends of the upper cantilever 31 and the lower cantilever 32 are correspondingly hinged on the supporting seat 1 and the suspension seat 2 to form a four-bar linkage mechanism, and the four-bar linkage mechanism is provided with pretightening force by the spring component 3 and can be kept in a bearing state. The upper arm 31 and the lower arm 32 are in parallel, and have a more compact shape, constituting a parallel four-bar linkage.

The spring assembly 4 comprises an elastic body 41, an adjusting screw 42, a nut column 43 and a sliding shaft 44; one end of the elastic body 41 is hung at the lower part of the supporting seat 1, and the other end is fixed with one end of the adjusting screw rod 42; the other end of the adjusting screw rod 42 is in threaded connection with the nut column 43, and the tightness, namely the pretightening force of the elastic body 41, can be adjusted; the other end of the nut column 43 is connected with one end of a sliding shaft 44, the other end of the sliding shaft 44 is hung on a roller 45, and the nut column 43 can be freely rotated so as to adjust the tightness of the spring assembly; that is, one end of the spring assembly 4 is hung on the arc-shaped hook 33 through the roller 45, and the other end is hung on the lower portion of the support base 1, and the lower end portion of the support base 1 is provided with the base 5 capable of clamping the surface of an object or a standing object.

Further, the supporting seat 1, the upper suspension arm 31, the lower suspension arm 32 and the arc-shaped hook 33 are all sheets formed by punching and shearing a steel plate, are all of a pair of separated structures, and are locked and fixed into a whole by a bolt 6; the suspension seat 2 is clamped between the two upper suspension arms 31 and the two lower suspension arms 32 and is hinged and positioned by respective shaft position screws 7; the two arc-shaped hook pieces 33 are correspondingly clung to the outer sides of the cantilevers 31 on the two pieces and are locked into a whole by the bolts 6; the upper ends of the two supporting seats 1 are clamped at the outer sides of the two arc-shaped hook members 33 and are hinged and positioned at the outer sides of the two lower suspension arms 32 and the two upper suspension arms 31 by shaft position screws 7 to form tower-shaped stable support from top to bottom. The roller 45 has two ends respectively engaged with the two arc-shaped hook members 33, more specifically, with the hook arcs 331 of the arc-shaped hook members 33, and the roller 45 may have grooved wheels 451 at the two ends thereof, and engaged with the hook arcs 331 of the two arc-shaped hook members via the grooved wheels 451, so as to be freely slidable. The spring assembly 4 is arranged in the middle of the two supporting seats 1, the lower end of the spring assembly is hung on a locking bolt 6 of the two supporting seats 1, and the pretightening force is centered to keep the load bearing stress balance of the suspension seat 2.

Because the spring assembly 4 has a certain length, the height of the supporting seat 1 is not less than 200mm, the upper end part is within 60mm and used for hinging and positioning the upper cantilever 31 and the lower cantilever 32, a limiting seat 11 is arranged below the hinging point of the lower cantilever 32, and the limiting seat 11 is clamped and locked between the two supporting seats 1; the spring assembly 4 passes through the position-limiting seat 11 and is restrained by the position-limiting seat 11, so that the roller 45 at the upper end can slide or roll on the hook arc 331 of the arc-shaped hook member to adapt to the change of the angle of the cantilever assembly 3. More specifically, the sliding shaft 44 of the spring assembly passes through the limiting seat and can slide at least axially to meet the requirement of tightness adjustment.

The stroke of the hook arc 331 in the arc hook element corresponds to the designed high-position and low-position limit position ranges of the suspension seat 2, and the distances between the two end points of the stroke of the hook arc 331 and the axial position screw 7 for hinging and positioning the arc hook element are respectively as follows: when the suspension seat 2 is at the low position, the distance between the hook arc 331 and the shaft position screw 7 is smaller than the distance between the hook arc 331 and the shaft position screw 7 when the suspension seat 2 is at the high position, so that when the cantilever assembly 3 swings to the low position, the pretightening force of the spring assembly 4 is increased, and the change of the bearing moment is balanced.

In the spring assembly 4, the nut column 43 and the sliding shaft 44 are connected with the following two preferable structures: firstly, the nut column 43 and the sliding shaft 44 are fixed through a pin 46, the upper end part of the sliding shaft 44 is provided with a T-shaped head 441, after the T-shaped head 441 passes through a radial through hole of a roller 45, the upper end part and the lower end part of the roller are inserted into an axial hole of the nut column 43 and are fixed through a pin 46 which is inserted transversely, and the sliding shaft 44 can rotate and slide axially relative to the limiting seat 11; secondly, the nut column 43 is connected with the sliding shaft 44 through threads, the nut column 43 is provided with threads with opposite double-head directions, and the sliding shaft 44 is opposite to the threads of the adjusting screw rod 42, so that double strokes can be obtained when the nut column 43 is adjusted; the upper end of the sliding shaft 44 is also provided with a T-shaped head 441, and after passing through the radial through hole of the roller 45, the T-shaped head 441 is hung on the roller 45 and is limited to rotate. The rotation can be limited by adopting a spline fit mode, for example, a sliding shaft 44 is processed into a spline, and a radial through hole of a rolling shaft 45 is processed with a key groove corresponding to the radial through hole; an axial groove may also be machined in the surface of the slide shaft 44 to form a thread radially extending from the roller 45 to form a restriction, all as is conventional. Or a ring sleeve is processed at the upper end part of the sliding shaft 44 and is directly sleeved on the rolling shaft 45, so that the assembly is easy and the rotation can be limited.

In this example, the upper suspension arm 31 and the arc hook 33 are separate parts and are locked together by the bolt 6, and the upper suspension arm 31 and the lower suspension arm 32 are made of the same sheet material and are used for both purposes; of course, the upper arm 31 and the curved hook 33 may be a single piece that is stamped and cut at one time. In addition, the elastic body 41 in the spring assembly 4 can be standard or commercial kits such as an adjustable spring, an adjustable rubber, a controllable gas spring, and the like. The supporting seat 1 is directly locked on the flat plate type base 5 in the example, and can be flexibly matched with a clamp or a counterweight base, and can be positioned through two shafts, so that the requirements of the front-back swing and the left-right direction rotation adjustment of the supporting seat 1 are met.

Claims

1. A steel structure display support comprises a supporting seat (1), a suspension seat (2), a cantilever assembly (3) and a spring assembly (4); two ends of the cantilever assembly (3) are respectively hinged to the supporting seat (1) and the suspension seat (2) to form a four-bar linkage mechanism, and the four-bar linkage mechanism provides pretightening force by the spring assembly (4) and can be kept in a bearing state; the method is characterized in that: the cantilever assembly (3) comprises an upper cantilever (31) and a lower cantilever (32), and the lower end of the upper cantilever (31) is provided with an arc-shaped hook (33); one end of the spring component (4) is hung on the arc-shaped hook member (33) through a rolling shaft (45), and the other end is hung on the lower part of the supporting seat (1); the lower end part of the supporting seat (1) is provided with a base (5) which can clamp the surface of an object or a standing object.

2. The steel structural display bracket of claim 1, wherein: the supporting seat (1), the upper suspension arm (31), the lower suspension arm (32) and the arc-shaped hook piece (33) are sheets formed by punching and shearing a steel plate, are of a pair of separated structures and are locked into a whole by a bolt (6); the suspension seat (2) is clamped between the two upper suspension arms (31) and the two lower suspension arms (32) and is hinged and positioned by respective shaft position screws (7); the two arc-shaped hook members (33) are correspondingly clung to the outer sides of the cantilevers (31) on the two plates and are locked into a whole by bolts (6); the upper ends of the two supporting seats (1) are clamped outside the two arc-shaped hook members (33) and are hinged and positioned outside the two lower suspension arms (32) and the two upper suspension arms (31) by shaft position screws (7); the two ends of the rolling shaft (45) are correspondingly lapped on the two arc-shaped hook members (33), the spring assemblies (4) are positioned on the two arc-shaped hook members, the middle positions of the two support seats (1) are arranged, and the lower end parts of the spring assemblies are hung on a bolt (6) for locking and fixing the two support seats (1).

3. A steel structural display stand according to claim 1 or 2, wherein: the height of the supporting seat (1) is not less than 200mm, the upper end part of the supporting seat (1) is within 60mm and used for hinging and positioning the upper cantilever (31) and the lower cantilever (32), a limiting seat (11) is arranged below the hinging point of the lower cantilever (32), and the limiting seat (11) is clamped and locked between the two supporting seats (1); the spring component (4) penetrates through the limiting seat (11) and is restrained by the limiting seat (11), so that the rolling shaft (45) at the upper end part can slide or roll on the hook arc (331) of the arc-shaped hook part to adapt to the change of the angle of the cantilever component (3).

4. A steel structural display bracket according to claim 3, wherein: the spring assembly (4) comprises an elastic body (41), an adjusting screw rod (42), a nut column (43) and a sliding shaft (44); one end of the elastic body (41) is hung at the lower part of the supporting seat (1), and the other end is fixed with one end of the adjusting screw rod (42); the other end of the adjusting screw rod (42) is in threaded connection with the nut column (43), so that the tightness can be adjusted; the other end of the nut column (43) is connected with one end of a sliding shaft (44), the other end of the sliding shaft (44) is hung on a rolling shaft (45), and at least the nut column (43) is kept to be capable of rotating freely so as to adjust the tightness of the spring assembly (4); the sliding shaft (44) penetrates through the limiting seat (11) and can slide at least in the axial direction.

5. The steel structural display bracket of claim 4, wherein: the nut column (43) and the sliding shaft (44) are connected with one structure selected from the following structures: firstly, a nut post (43) and a sliding shaft (44) are fixed through a pin (46), a T-shaped head (441) is processed at the upper end of the sliding shaft (44), after the sliding shaft passes through a radial through hole of a rolling shaft (45), the T-shaped head (441) is hung at the upper end part and the lower end part of the rolling shaft (45) and is inserted into an axial hole of the nut post (43) and fixed through the pin (46) which is inserted transversely, and the sliding shaft (44) can rotate and slide axially relative to a limiting seat (11); secondly, the nut column (43) is connected with the sliding shaft (44) through threads, the nut column (43) is provided with threads with opposite double-head directions, and the sliding shaft (44) is opposite to the threads of the adjusting screw rod (42); the upper end part of the sliding shaft (44) is provided with a T-shaped head (441), and after the T-shaped head (441) penetrates through a radial through hole of the rolling shaft (45), the T-shaped head (441) is hung on the rolling shaft (45) and is limited to rotate; or a ring sleeve is processed at the upper end part of the sliding shaft (44) and sleeved on the rolling shaft (45).

6. The steel structural display bracket of claim 5, wherein: the roller (45) is provided with a grooved wheel (451) which is lapped on the two arc-shaped hook members (33) by the grooved wheel (451).