A steel structure display bracket

Abstract

The present invention relates to a steel structure display stand, comprising a support seat, a suspension seat, a cantilever assembly and a spring assembly; the two ends of the cantilever assembly are respectively hinged on the support seat and the suspension seat to form a four-bar linkage mechanism, the four-bar linkage mechanism is provided with a preload force by the spring assembly and can be kept in a load-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 assembly is hung on the arc-shaped hook through a roller, and the other end is hung on the lower part of the support seat, and a base capable of clamping an object or standing on the surface of an object is arranged at the lower end of the support seat. This structure cleverly moves the spring assembly out of the cantilever assembly, which is not only more intuitive and convenient to adjust, but also more lightweight; the spring assembly acts on the hook arc of the upper cantilever arc-shaped hook, and as the cantilever assembly of the bracket is adjusted to a lower position, the preload force of the spring assembly increases, and the balance with the load-bearing torque is timely maintained.

Description

Technical field:

[0001] The invention belongs to the field of display brackets, and particularly relates to a steel structure display bracket, in particular to a solution in which both a cantilever and a supporting seat are made of steel plates. Background technology:

[0002] The adjustable bracket is developed along with the development of LCD monitors. Compared with the fixed base of the monitor, it not only has the function of up and down, left and right adjustment, but also can meet the needs of distance stretching. It is flexible and easy to adjust, widely welcomed by the market, and also promotes the continuous optimization of the structure. The adjustment principle of the bracket is still the method of four-bar linkage with spring assembly, but the components are reinforced to take into account the different load-bearing capacity.

[0003] As disclosed in patent application No. 201610724374.7, an adjustment support mechanism for a display stand is disclosed, including an adjustment seat, a mounting seat, an arm and an elastic member, the two ends of the arm are respectively hingedly connected to the adjustment seat and the mounting seat, the two ends of the elastic member in the elastic expansion direction are respectively hingedly connected to the adjustment seat and the mounting seat, and there is an angle greater than zero between the elastic expansion direction of the elastic member and the extension direction of the arm. When the arm is adjusted in height, the elastic member follows the up and down movement, and for this reason, a two-way bell mouth needs to be designed at the hinge with the adjustment seat to reduce the rigidity of the adjustment seat; furthermore, an elastic adjustment mechanism is also provided at the end of the elastic member in the structure, which includes a screw and a nut locked together with the elastic member, and the end of the screw is constrained in the jack of the adjustment seat by an adjustment shaft, and the preload force of the elastic member is adjusted by rotating the screw. In the structure, the elastic member is installed in the upper support and a support of the arm, making the arm heavier and larger in size, and not light enough. This is also a common means of designing existing bracket products.

[0004] How to improve the deficiencies of the existing structure has become the research object of the present invention. Summary of the invention:

[0005] The purpose of the present invention is to invent a steel structure display bracket with a spring component designed outside the cantilever component for easy adjustment; and the secondary purpose is that the bracket body is processed from steel plate sheets.

[0006] The technical solution of the present invention is implemented as follows: a steel structure display bracket, including a support seat, a suspension seat, a cantilever assembly and a spring assembly; the two ends of the cantilever assembly are respectively hinged on the support seat and the suspension seat to form a four-bar linkage mechanism, which is provided with a preload force by the spring assembly and can be maintained in a load-bearing state; it is characterized in that: the cantilever assembly includes an upper cantilever and a lower cantilever, and an arc-shaped hook is provided at the lower end of the upper cantilever; one end of the spring assembly is hung on the arc-shaped hook through a roller, and the other end is hung on the lower part of the support seat; the lower end of the support seat is provided with a base that can clamp an object or stand on the surface of an object.

[0007] The support seat, upper cantilever, lower cantilever and arc-shaped hook are all sheets formed by punching and shearing of steel plates, and are a pair of separate structures, which are locked into one by bolts; the suspension seat is clamped between the two upper cantilevers and the two lower cantilevers, and are hinged and positioned by their own axial screws; the two arc-shaped hooks are correspondingly tightly attached to the outside of the two upper cantilevers, and are locked into a whole by bolts; the upper ends of the two support seats are clamped on the outside of the two arc-shaped hooks, and are hinged and positioned on the outside of the two lower cantilevers and the two upper cantilevers by axial screws; the two ends of the roller are correspondingly placed on the two arc-shaped hooks, the spring assembly is in the middle position of the two support seats, and the lower end is hung on a locking bolt of the two support seats.

[0008] The height of the support seat is not less than 200mm, and the upper end portion within 60mm is used to hinge and position the upper cantilever and the lower cantilever, and a limit seat is arranged below the hinge point of the lower cantilever, and the limit seat is clamped and locked between the two support seats; the spring assembly passes through the limit seat and is constrained by the limit seat, so that the roller at the upper end portion can slide or roll on the hook arc of the arc-shaped hook member to adapt to the change of the angle of the cantilever assembly.

[0009] The spring assembly includes an elastomer, an adjusting screw, a nut column and a sliding shaft; one end of the elastomer is hung on the lower part of the support seat, and the other end is fixed to one end of the adjusting screw; the other end of the adjusting screw is threadedly connected to the nut column to adjust the tightness; the other end of the nut column is connected to one end of the sliding shaft, and the other end of the sliding shaft is hung on the roller, and at least the nut column can be rotated freely to adjust the tightness of the spring assembly; the sliding shaft passes through the limit seat and can at least slide axially.

[0010] The connection between the nut column and the sliding shaft has one of the following structures: 1. The nut column and the sliding shaft are fixed by a pin, and the upper end of the sliding shaft is processed with a T-shaped head. After passing through the radial through hole of the roller, the T-shaped head is hung on the roller, and the lower end is inserted into the axial hole of the nut column and fixed by the transversely inserted pin. The sliding shaft can both rotate and slide axially relative to the limit seat; 2. The nut column and the sliding shaft are connected by threads, and the nut column is processed with double-headed threads in opposite directions, and the sliding shaft is opposite to the adjusting screw thread; the upper end of the sliding shaft is processed with a T-shaped head, and after passing through the radial through hole of the roller, the T-shaped head is hung on the roller and is restricted from rotating; or the upper end of the sliding shaft is processed with a snare, which is sleeved on the roller.

[0011] Grooved wheels are arranged at both ends of the roller, and the roller is placed on two arc-shaped hooks by means of the grooved wheels.

[0012] The present invention cleverly moves the spring assembly out of the cantilever assembly, which not only makes the adjustment more intuitive and convenient, but also makes the cantilever assembly lighter; the spring assembly acts on the hook arc of the upper cantilever arc hook, and as the bracket cantilever assembly is adjusted to a lower position, the preload force of the spring assembly increases, and keeps balance with the load-bearing torque in a timely manner; the support seat can be flexibly equipped with a clamp or a counterweight base, and through two-axis positioning, it can also meet the needs of front and rear pitch, and left and right azimuth adjustment. Description of the drawings:

[0013] The present invention will be further described below in conjunction with specific illustrations:

[0014] Figure 1 Schematic diagram of steel structure display bracket

[0015] Figure 2 Schematic diagram of the steel structure display bracket

[0016] Figure 3 Schematic diagram of high-position support for steel structure display stand

[0017] Figure 4 Schematic diagram of low-level support for steel structure display stand

[0018] in

[0019] 1—Support seat 11—Limiting seat 2—Suspension seat 3—Cantilever assembly

[0020] 31—upper cantilever 32—lower cantilever 33—arc-shaped hook 331—hook arc

[0021] 4—spring assembly 41—elastic body 42—adjusting screw 43—nut column

[0022] 44 - sliding shaft 441 - T-shaped head 45 - roller 451 - groove wheel

[0023] 46—pin 5—base 6—bolt 7—axial screw Specific implementation method:

[0024] Reference Figures 1 to 4 The steel structure display bracket includes a supporting seat 1, a hanging seat 2, a cantilever assembly 3 and a spring assembly 4, and a base 5 for fixing the supporting seat.

[0025] The cantilever assembly 3 includes an upper cantilever 31, a lower cantilever 32 and an arc-shaped hook 33; the arc-shaped hook 33 is arranged at the lower end of the upper cantilever 31 and can swing with the upper cantilever 31. The ends of the upper cantilever 31 and the lower cantilever 32 are correspondingly hinged on the support seat 1 and the suspension seat 2 to form a four-bar linkage mechanism, which is provided with a preload by the spring assembly 3 and can be kept in a load-bearing state. The upper cantilever 31 and the lower cantilever 32 are in a parallel state, have a more compact appearance, and constitute a parallel four-bar linkage mechanism.

[0026] The spring assembly 4 includes 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 on the lower part of the support seat 1, and the other end is fixed to one end of the adjusting screw 42; the other end of the adjusting screw 42 is threadedly connected to the nut column 43, and the tightness, that is, the preload force of the elastic body 41, can be adjusted; the other end of the nut column 43 is connected to one end of the sliding shaft 44, and the other end of the sliding shaft 44 is hung on the roller 45, and the nut column 43 is kept to rotate freely to adjust the tightness of the spring assembly; that is, one end of the spring assembly 4 is hung on the arc hook 33 through the roller 45, and the other end is hung on the lower part of the support seat 1, and the lower end of the support seat 1 is provided with a base 5 that can clamp an object or stand on the surface of an object.

[0027] Furthermore, the support seat 1, the upper cantilever 31, the lower cantilever 32 and the arc-shaped hook 33 are all sheets formed by punching and shearing steel plates, and are a pair of separate structures, which are locked into one by bolts 6; the suspension seat 2 is clamped between the two upper cantilevers 31 and the two lower cantilevers 32, and are hinged and positioned by their respective axial screws 7; the two arc-shaped hooks 33 are correspondingly tightly attached to the outer sides of the two upper cantilevers 31, and are locked into a whole by bolts 6; the upper ends of the two support seats 1 are clamped on the outer sides of the two arc-shaped hooks 33, and are hinged and positioned on the outer sides of the two lower cantilevers 32 and the two upper cantilevers 31 by axial screws 7, forming a tower-shaped stable support from top to bottom. The two ends of the roller 45 are correspondingly placed on the two arc-shaped hooks 33, more specifically, on the hook arcs 331 of the arc-shaped hooks 33, and groove wheels 451 can be provided at both ends of the roller 45, and the roller 45 can slide freely by placing on the hook arcs 331 of the two arc-shaped hooks with the help of the groove wheels 451. The spring assembly 4 is located in the middle of the two support seats 1, and the lower end is hung on a bolt 6 for locking the two support seats 1. The pre-tightening force is centered to keep the load-bearing force of the suspension seat 2 balanced.

[0028] Since the spring assembly 4 has a certain length, the support seat 1 has a height of not less than 200 mm, and the upper end portion within 60 mm is used to hinge and position the upper cantilever 31 and the lower cantilever 32, and a limit seat 11 is provided below the hinge point of the lower cantilever 32, and the limit seat 11 is clamped and locked between the two support seats 1; the spring assembly 4 passes through the limit seat 11 and is constrained by the limit seat 11, so that the roller 45 at the upper end portion can slide or roll on the hook arc 331 of the arc hook to adapt to the change of the angle of the cantilever assembly 3. More specifically, the sliding shaft 44 in the spring assembly passes through the limit seat and can at least slide axially to meet the needs of tension adjustment.

[0029] The stroke of the hook arc 331 in the arc hook corresponds to the high and low limit position ranges designed for the suspension seat 2, and the distances between the two end points of the stroke of the hook arc 331 and the axial screw 7 of the hinged positioning arc hook are: when the suspension seat 2 is in the low position, the distance between the hook arc 331 and the axial screw 7 is smaller than the distance between the hook arc 331 and the axial screw 7 when the suspension seat 2 is in the high position, so that when the cantilever assembly 3 swings to the low position, the preload force of the spring assembly 4 increases to balance the change in the load-bearing moment.

[0030] In the spring assembly 4, the nut column 43 and the sliding shaft 44 are connected with the following two preferred structures: first, the nut column 43 and the sliding shaft 44 are fixed by a pin 46, and the upper end of the sliding shaft 44 is processed with a T-shaped head 441. After passing through the radial through hole of the roller 45, the T-shaped head 441 is hung on the roller, and the lower end is inserted into the axial hole of the nut column 43 and fixed by the transversely inserted pin 46. The sliding shaft 44 can both rotate and slide axially relative to the limit seat 11; second, the nut column 43 and the sliding shaft 44 are connected by threads, and the nut column 43 is processed with double-headed threads in opposite directions. The threads of the sliding shaft 44 and the adjusting screw 42 are opposite, so that when the nut column 43 is adjusted, a double stroke can be obtained; the upper end of the sliding shaft 44 is also processed with a T-shaped head 441. After passing through the radial through hole of the roller 45, the T-shaped head 441 is hung on the roller 45 and is restricted from rotating. The rotation can be limited by spline matching, such as machining the sliding shaft 44 into a spline and machining a corresponding keyway in the radial through hole of the roller 45; or machining an axial groove on the surface of the sliding shaft 44, and screwing a top screw radially from the roller 45 to form a constraint, which are all conventional technologies. Alternatively, the upper end of the sliding shaft 44 is machined with a loop, which is directly mounted on the roller 45, which is not only easy to assemble but also can achieve rotation limitation.

[0031] In this example, the upper cantilever 31 and the arc-shaped hook 33 are separate accessories, which are locked into one by bolts 6, and the upper cantilever 31 and the lower cantilever 32 are the same sheet material, which are interchangeable with each other; of course, the upper cantilever 31 and the arc-shaped hook 33 can also be a one-piece piece punched and cut at one time. In addition, the elastomer 41 in the spring assembly 4 can be a standard part or commercial kit such as an adjustable spring, an adjustable rubber, and a controllable gas spring. In addition to being directly locked on the flat base 5 in this example, the support seat 1 can also be flexibly equipped with a clamp or a counterweight base, and can also be positioned with it through two axes to achieve the front and rear swing of the support seat 1, as well as the rotation adjustment of the left and right directions.

Claims

1. A steel structure display stand, comprising a support seat (1), a suspension seat (2), a cantilever assembly (3) and a spring assembly (4); the two ends of the cantilever assembly (3) are respectively hinged on the support seat (1) and the suspension seat (2) to form a four-bar linkage, the four-bar linkage is provided with a preload by the spring assembly (4) and can be maintained in a load-bearing state; the characteristics are: The cantilever assembly (3) comprises an upper cantilever (31) and a lower cantilever (32), wherein an arc-shaped hook (33) is disposed at the lower end of the upper cantilever (31); one end of the spring assembly (4) is hung on the arc-shaped hook (33) via a roller (45), and the other end is hung on the lower part of the support seat (1); a base (5) capable of clamping an object or standing on the surface of an object is disposed at the lower end of the support seat (1); the support seat (1), the upper cantilever (31), the lower cantilever (32) and the arc-shaped hook (33) are all sheets formed by punching and shearing steel plates, and are all a pair of separate structures that are bolted together into one; the suspension seat (2) is clamped between the two upper cantilever plates. The two upper cantilever arms (31) and the two lower cantilever arms (32) are hinged and positioned by respective axial screws; the two arc-shaped hooks (33) are correspondingly pressed against the outer sides of the two upper cantilever arms (31) and are locked into a whole by bolts; the upper ends of the two support seats (1) are clamped on the outer sides of the two arc-shaped hooks (33) and are hinged and positioned on the outer sides of the two lower cantilever arms (32) and the two upper cantilever arms (31) by axial screws; the two ends of the roller (45) are correspondingly placed on the two arc-shaped hooks (33); the spring assembly (4) is located in the middle of the two support seats (1) and the lower end is hung on a locking bolt of the two support seats (1); the support seat ( 1) The height is not less than 200 mm, and the upper cantilever (31) and the lower cantilever (32) are hingedly positioned within 60 mm of the upper end, and a limit seat (11) is provided below the hinge point of the lower cantilever (32), and the limit seat (11) is clamped and locked between the two support seats (1); the spring assembly (4) passes through the limit seat (11) and is constrained by the limit seat (11), so that the roller (45) at its upper end can slide or roll on the hook arc (331) of the arc hook member to adapt to the change of the angle of the cantilever assembly (3); the spring assembly (4) includes an elastic body (41), an adjusting screw (42), and a nut column (43) and a sliding shaft (44); one end of the elastic body (41) is hung on the lower part of the support seat (1), and the other end is fixed to one end of the adjusting screw (42); the other end of the adjusting screw (42) is threadedly connected to the nut column (43) to adjust the tightness; the other end of the nut column (43) is connected to one end of the sliding shaft (44), and the other end of the sliding shaft (44) is hung on the roller (45), and at least the nut column (43) can be rotated freely to adjust the tightness of the spring assembly (4); the sliding shaft (44) passes through the limit seat (11) and can at least slide axially; the elastic body (41) is an adjustable spring, an adjustable rubber or a controllable gas spring.

2. A steel structure display stand according to claim 1, characterized in that: The connection between the nut column (43) and the sliding shaft (44) has the following optional structure:

1. The nut column (43) and the sliding shaft (44) are fixed by a pin (46); the upper end of the sliding shaft (44) is processed with a T-shaped head (441); after passing through the radial through hole of the roller (45), the T-shaped head (441) is hung on the upper and lower ends of the roller (45) and inserted into the axial hole of the nut column (43) and fixed by the pin (46) inserted laterally; the sliding shaft (44) can rotate and move relative to the limit seat (11); Axial sliding; second, the nut column (43) is connected to the sliding shaft (44) by means of a thread, the nut column (43) is processed with double-headed threads in opposite directions, and the threads of the sliding shaft (44) and the adjusting screw (42) are opposite; the upper end of the sliding shaft (44) is processed 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 restricted from rotating; or the upper end of the sliding shaft (44) is processed with a loop, which is sleeved on the roller (45).

3. The steel structure display stand according to claim 2, characterized in that: The roller (45) is provided with a groove wheel (451) and is placed on the two arc-shaped hook members (33) by means of the groove wheel (451).

Images