CN115539792A

CN115539792A - Adjusting support

Info

Publication number: CN115539792A
Application number: CN202211117804.0A
Authority: CN
Inventors: 王兴雷
Original assignee: Foshan Leiboshi Electrical Technology Co ltd
Current assignee: Foshan Leiboshi Electrical Technology Co ltd
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2022-12-30

Abstract

The invention discloses an adjusting bracket, which comprises a supporting seat, a suspension seat, an upper cantilever and a lower cantilever, wherein the supporting seat, the upper cantilever, the lower cantilever and the suspension seat are connected into a plane four-bar mechanism, and the adjusting bracket also comprises: the connecting rod structure is closer to the suspension seat than the supporting seat, the connecting rod structure comprises a first connecting rod and a second connecting rod, the first end of the first connecting rod is hinged with the suspension seat, the first end of the second connecting rod is hinged with the lower cantilever, the second end of the second connecting rod is hinged with the first connecting rod, and the first connecting rod, the second connecting rod, the lower cantilever and the suspension seat are connected into a plane four-bar mechanism; the first end of the pre-tightening mechanism is hinged with the second end of the first connecting rod, and the second end of the pre-tightening mechanism is hinged at a position close to the supporting seat. According to the adjusting bracket provided by the embodiment of the invention, the connecting rod structure is arranged, and a part of the stress of the suspension seat can be applied to the lower cantilever through the connecting rod structure, so that the stability of the position adjusting bracket is realized.

Description

Adjusting support

Technical Field

The invention relates to the technical field of supports, in particular to an adjusting support.

Background

The adjusting bracket is developed along with the liquid crystal display, compared with a fixed base of the display, the adjusting bracket not only has 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 a method for matching a four-bar linkage with a pre-tightening spring, and the part is reinforced without considering the difference of load bearing.

In the related art, the elastic part is usually directly connected with a hanging seat connected with the display screen in the adjusting bracket, and the pre-tightening is realized by all springs, so that the springs are easy to fatigue or damage, and the use stability of the adjusting bracket is unfavorable.

Disclosure of Invention

One object of the invention is to propose an adjusting bracket provided with a link mechanism by means of which a part of the force of the suspension socket can be applied to the lower boom, thereby adjusting the stability of the bracket in position.

The adjusting bracket comprises a supporting seat, a suspension seat, an upper cantilever and a lower cantilever, wherein the upper cantilever is respectively hinged with the supporting seat and the suspension seat, the lower cantilever is respectively hinged with the supporting seat and the suspension seat, the supporting seat, the upper cantilever, the lower cantilever and the suspension seat are connected to form a plane four-bar linkage, and the adjusting bracket further comprises: the connecting rod structure is closer to the suspension seat than the supporting seat, the connecting rod structure comprises a first connecting rod and a second connecting rod, the first end of the first connecting rod is hinged with the suspension seat, the first end of the second connecting rod is hinged with the lower cantilever, the second end of the second connecting rod is hinged with the first connecting rod, and the first connecting rod, the second connecting rod, the lower cantilever and the suspension seat are connected into a plane four-bar mechanism; the first end of the pre-tightening mechanism is hinged with the second end of the first connecting rod, and the second end of the pre-tightening mechanism is hinged at a position close to the supporting seat.

According to the adjusting bracket provided by the embodiment of the invention, the connecting rod structure is arranged, and a part of the stress of the suspension seat can be applied to the lower cantilever through the connecting rod structure, so that the stability of the position adjusting bracket is realized.

In addition, the adjusting bracket according to the above embodiment of the present invention may further have the following additional technical features:

optionally, the supporting seat has a first hinge point hinged to the upper suspension arm and a second hinge point hinged to the lower suspension arm, the suspension seat has a third hinge point hinged to the upper suspension arm and a fourth hinge point hinged to the lower suspension arm, a connection line between the first hinge point and the third hinge point is a first connection line, a connection line between the second hinge point and the fourth hinge point is a second connection line, and the pre-tightening mechanism is inclined in a direction from the first connection line to the second connection line in a direction extending from the supporting seat to the suspension seat.

Optionally, the upper cantilever includes a top wall, the lower cantilever includes a bottom wall, an accommodation space is constructed between the top wall and the bottom wall, the pre-tightening mechanism is arranged in the accommodation space, just the first end of the pre-tightening mechanism is compared with the top wall is closer to the bottom wall, the second end of the pre-tightening mechanism is compared with the bottom wall is closer to the top wall, a concave portion which deviates from the direction of the top wall in a concave manner is arranged on the bottom wall, and the concave portion is close to the suspension seat and used for yielding the first end of the pre-tightening mechanism.

Optionally, the first connecting rod includes a first branch portion and a second branch portion, one end of the first branch portion is hinged to the suspension seat, the other end of the first branch portion extends toward the support seat and is hinged to the second connecting rod, one end of the second branch portion is connected to the other end of the first branch portion, and the other end of the second branch portion extends toward the support seat and inclines toward the bottom wall of the lower cantilever in the direction toward the support seat, and is hinged to the first end of the pre-tightening mechanism.

Optionally, the lower cantilever and the upper cantilever are arranged oppositely, an accommodating cavity is formed between the lower cantilever and the upper cantilever, and the connecting rod structure and the pre-tightening mechanism are both arranged in the accommodating cavity.

Optionally, the pre-tightening mechanism comprises a pre-tightening spring and an adjusting bolt, one end of the pre-tightening spring is hinged to the first connecting rod, the other end of the pre-tightening spring extends towards the supporting seat, and a nut is arranged on the pre-tightening spring; one end of the adjusting bolt is in threaded transmission connection with the nut, and the other end of the adjusting bolt extends towards the supporting seat and is hinged with the upper cantilever.

Optionally, a rotating shaft is arranged on the upper cantilever, a mounting hole is formed in the rotating shaft, the axis of the mounting hole is perpendicular to the axis of the rotating shaft, so that the adjusting bolt can penetrate through the mounting hole and can rotate, the rotating shaft is rotatably connected with the upper cantilever, so that the adjusting bolt can be hinged to the upper cantilever, and an adjusting hole opposite to the head of the adjusting bolt is formed in the upper cantilever.

Optionally, a positioning seat and a positioning block are arranged on the upper cantilever, the positioning seat is fixed on the upper cantilever, a positioning groove is arranged on the positioning seat, the rotating shaft is rotatably embedded in the positioning groove, the positioning block is fixedly connected with the positioning seat, and a part of the positioning block is located at an opening of the positioning groove and abuts against the rotating shaft.

Optionally, the suspension base is provided with a third hinge point hinged to the upper suspension arm, a fourth hinge point hinged to the lower suspension arm, and a fifth hinge point hinged to the first link, and the fifth hinge point is located between the third hinge point and the fourth hinge point.

Optionally, a sixth hinge point is arranged between the first connecting rod and the second connecting rod, a seventh hinge point is arranged between the first connecting rod and the pre-tightening mechanism, a fifth hinge point is arranged between the first connecting rod and the suspension seat, and the sixth hinge point is located between the fifth hinge point and the seventh hinge point.

Drawings

FIG. 1 is a schematic view of an adjustment bracket according to one embodiment of the present invention.

FIG. 2 is a cross-sectional view of an adjustment bracket according to one embodiment of the invention.

Fig. 3 is an exploded view of an adjustment bracket according to an embodiment of the present invention.

Fig. 4 is a schematic view of the upper cantilever of the adjustment bracket of one embodiment of the present invention.

Reference numerals are as follows: an adjustment bracket 100; an accommodating chamber 101; a support base 11; a suspension base 12; an upper cantilever 13; a rotating shaft 131; a mounting hole 132; a positioning seat 133; a positioning block 134; an adjustment aperture 135; a positioning groove 136; a lower boom 14; a lower concave portion 141; a link structure 15; a first link 151; a first leg 1511; a second branch 1512; a second link 152; a pre-tightening mechanism 16; a pre-tightening spring 161; an adjusting bolt 162; a head 162a; a nut 163; a first hinge point a; a second hinge point b; a third hinge point c; a fourth hinge point d; a fifth hinge point e; a sixth hinge point f; a seventh hinge point g; a first connection line ac; and a second connection line bd.

Detailed Description

The adjusting bracket is widely applied to the liquid crystal display, but as the screen of the display becomes larger, the existing bracket cannot meet the bearing requirement and stability of a large screen, and particularly when the supporting arm is lifted or lowered, the screen can shake, so that the more humanized use experience of consumers cannot be met. To this end, the invention provides an adjustment bracket.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

As shown in the figures, the adjusting bracket 100 according to the embodiment of the present invention includes a supporting seat 11, a suspension seat 12, an upper suspension arm 13 and a lower suspension arm 14, the upper suspension arm 13 is hinged to the supporting seat 11 and the suspension seat 12, respectively, the lower suspension arm 14 is hinged to the supporting seat 11 and the suspension seat 12, respectively, and the supporting seat 11, the upper suspension arm 13, the lower suspension arm 14 and the suspension seat 12 are connected to form a planar four-bar linkage mechanism. The supporting base 11 may be connected to a supporting platform, for example, the supporting base 11 may be connected to a worktable, or a base may be disposed at the bottom of the supporting base 11 and supported on the worktable by the base. While the hanging seat 12 can be used for connecting the device to be adjusted, the present invention mainly uses the hanging seat 12 to support the display screen as an example, but this is not a limitation to the scope of the present invention. Because the supporting seat 11, the upper suspension arm 13, the lower suspension arm 14 and the suspension seat 12 form a planar four-bar linkage mechanism, the angle and the position of the suspension seat 12 can be conveniently adjusted, and the inclination angle and the position of equipment such as a display screen can be conveniently adjusted.

In addition, in order to maintain the adjusted position of the hanging seat 12 to maintain the stability of the hanging seat 12, the adjusting bracket 100 of the present invention further comprises: the connecting rod structure 15 is closer to the suspension seat 12 than the supporting seat 11, the connecting rod structure 15 comprises a first connecting rod 151 and a second connecting rod 152, a first end of the first connecting rod 151 is hinged to the suspension seat 12, a first end of the second connecting rod 152 is hinged to the lower cantilever 14, a second end of the second connecting rod 152 is hinged to the first connecting rod 151, and the first connecting rod 151, the second connecting rod 152, the lower cantilever 14 and the suspension seat 12 are connected into a plane four-bar linkage; a first end of the pre-tightening mechanism 16 is hinged to a second end of the first link 151, and a second end of the pre-tightening mechanism 16 is hinged to a position close to the support base 11. During use, after the position of the hanging seat 12 is adjusted, the pre-tightening mechanism 16 can be used to position the hanging seat 12 to maintain the position of the hanging seat 12, and specifically, after the hanging seat 12 is adjusted to the proper position, the force exerted by the pre-tightening mechanism 16 on the first connecting rod 151 will act on the hanging seat 12, so as to overcome the gravity of the hanging seat 12 and the equipment thereon, and further maintain the equipment in the proper position. Since the first link 151 is connected to the lower suspension arm 14 through the second link 152, the lower suspension arm 14 can be used to provide support for equipment, so that the adjusting bracket 100 of the present invention can be applied to support larger equipment, thereby effectively adjusting the application range of the bracket 100 and improving the stability of the adjusting bracket 100.

According to the adjusting bracket 100 of the embodiment of the present invention, the link structure 15 is provided, by which a part of the force of the suspension holder 12 can be applied to the lower suspension arm 14, thereby position-adjusting the stability of the bracket 100.

In the invention, the two-way tension action of the first connecting rod 151 is utilized, so that larger upward tension can be obtained in a larger angle range, and the larger bearing requirement and stability of the display and other equipment are ensured.

In addition, the second end of the pre-tightening mechanism 16 is hinged to a position close to the supporting seat 11, for example, the second end of the pre-tightening mechanism 16 can be hinged to one end of the upper cantilever 13 close to the supporting seat 11; or the second end of the pre-tightening mechanism 16 is hinged to one end of the lower cantilever 14 close to the supporting seat 11; or the second end of the pre-tightening mechanism 16 is hinged to the supporting seat 11, etc., the present invention mainly takes the example of hinging the second end of the pre-tightening mechanism 16 to the end of the upper cantilever 13 close to the supporting seat 11, but the present invention is not limited to the scope of the present invention.

In order to further increase the pretensioning force of the pretensioning mechanism 16, the pretensioning mechanism 16 may be configured to extend obliquely, the supporting seat 11 has a first hinge point a hinged to the upper suspension arm 13 and a second hinge point b hinged to the lower suspension arm 14, the suspension seat 12 has a third hinge point c hinged to the upper suspension arm 13 and a fourth hinge point d hinged to the lower suspension arm 14, a connection line between the first hinge point a and the third hinge point c is a first connection line ac, a connection line between the second hinge point b and the fourth hinge point d is a second connection line bd, and the pretensioning mechanism 16 is tilted in a direction extending from the supporting seat 11 to the suspension seat 12 in a direction from the first connection line ac to the second connection line bd. When the pretightening force of the pretightening mechanism 16 acts on the first connecting rod 151 and the suspension seat 12, a certain torque can be provided for the suspension seat 12 to counteract the torque generated by the gravity mounted on the suspension seat 12, so that the load-bearing capacity of the adjusting bracket 100 is further improved, and the equipment can be kept stable at different positions on the adjusting bracket 100.

In addition, in general, in order to improve the stability of the adjustment bracket 100, it is necessary to hide the pretensioner mechanism 16 inside the adjustment bracket 100 to improve the stability of the pretensioner mechanism 16 and to prevent the pretensioner mechanism 16 from causing injury to the user, for example, when the pretensioner mechanism 16 includes a spring, the spring is hidden to prevent the spring from pinching the skin of the user when the spring is deformed. Therefore, in some embodiments of the present invention, the upper suspension arm 13 includes a top wall, the lower suspension arm 14 includes a bottom wall, an accommodating space is formed between the top wall and the bottom wall, the pre-tightening mechanism 16 is disposed in the accommodating space, and a first end of the pre-tightening mechanism 16 is closer to the bottom wall than the top wall, a second end of the pre-tightening mechanism 16 is closer to the top wall than the bottom wall, and a concave portion 141 recessed toward a direction away from the top wall is disposed on the bottom wall, and the concave portion 141 is close to the suspension base 12 for receding the first end of the pre-tightening mechanism 16. Through setting up pretension mechanism 16 between roof and diapire, can improve pretension mechanism 16's stability, and set up recessed portion 141 on the diapire, can provide the abdication to pretension mechanism 16 for pretension mechanism 16 has bigger activity space, and can optimize the space utilization who adjusts support 100, reduces the whole volume of adjusting support 100.

As shown in the figures, in some embodiments of the present invention, the first link 151 includes a first branch 1511 and a second branch 1512, one end of the first branch 1511 is hinged to the suspension base 12, and the other end of the first branch 1511 extends toward the support base 11 and is hinged to the second link 152, one end of the second branch 1512 is connected to the other end of the first branch 1511, and the other end of the second branch 1512 extends toward the support base 11 and is inclined toward the bottom wall of the lower cantilever 14 in the direction extending toward the support base 11, and is hinged to the first end of the pretensioning mechanism 16. The supporting function of the adjusting bracket 100 can be further improved, and the stability of the adjusting bracket 100 can be improved. In particular, the obliquely arranged pretensioner mechanism 16 is coupled to the obliquely arranged second leg 1512, so that the supporting effect on the suspension base 12 can be maximized, and the stability and load-bearing capacity of the adjustment bracket 100 can be improved.

In some embodiments of the present invention, the lower suspension arm 14 and the upper suspension arm 13 are disposed opposite to each other, and a receiving cavity 101 is formed between the lower suspension arm 14 and the upper suspension arm 13, and the link structure 15 and the pre-tightening mechanism 16 are disposed in the receiving cavity 101. Through setting up holding chamber 101, can improve the stability of adjusting support 100 to can conveniently adjust support 100's cleanness etc. reduce the fault rate of adjusting support 100.

In some embodiments of the present invention, the pre-tightening mechanism 16 includes a pre-tightening spring 161 and an adjusting bolt 162, one end of the pre-tightening spring 161 is hinged to the first link 151, and the other end extends toward the support seat 11, and a nut 163 is disposed on the pre-tightening spring 161; one end of the adjusting bolt 162 is in threaded driving connection with the nut 163, and the other end of the adjusting bolt 162 extends toward the support seat 11 and is hinged with the upper suspension arm 13. The pretightening force of the pretightening mechanism 16 can be adjusted by the adjusting nut 163, so that different supporting forces can be provided for different devices, and the stability and the application range of the adjusting bracket 100 can be improved.

As shown, in some embodiments of the present invention, the upper suspension arm 13 is provided with a rotating shaft 131, the rotating shaft 131 is provided with a mounting hole 132, an axis of the mounting hole 132 is perpendicular to an axis of the rotating shaft 131 so as to allow the adjusting bolt 162 to pass through the mounting hole 132 and to rotate, the rotating shaft 131 is rotatably connected to the upper suspension arm 13 so as to allow the adjusting bolt 162 to be hinged to the upper suspension arm 13, and the upper suspension arm 13 is provided with an adjusting hole 135 opposite to a head 162a of the adjusting bolt 162. Through setting up rotation axis 131, can realize the articulated between pretension mechanism 16 and the upper cantilever 13 to can conveniently realize the regulation to the pretension through the rotation of adjusting bolt 162. Is applicable and convenient.

Wherein, the upper suspension arm 13 is configured as a cavity structure with an open lower side, the rotating shaft 131 is arranged at the inner side of the upper suspension arm 13, one end of the upper suspension arm 13 is connected with the supporting seat 11, the side wall of the upper suspension arm 13 connected with one end of the supporting seat 11 is provided with the aforementioned adjusting hole 135,

in addition, the lower suspension arm 14 may also be configured as a cavity structure with an open upper side, the upper suspension arm 13 is covered on the outer side of the lower suspension arm 14, and a cavity is configured between the upper suspension arm 13 and the lower suspension arm 14.

As shown in the drawings, in some embodiments of the present invention, the upper suspension arm 13 is provided with a positioning seat 133 and a positioning block 134, the positioning seat 133 is fixed on the upper suspension arm 13, the positioning seat 133 is provided with a positioning slot 136, the rotating shaft 131 is rotatably embedded in the positioning slot 136, the positioning block 134 is fixedly connected with the positioning seat 133, and a portion of the positioning block 134 is located at an opening of the positioning slot 136 and abuts against the rotating shaft 131. The positioning of the rotating shaft 131 can be realized by the matching of the positioning seat 133 and the positioning block 134, and the installation efficiency and stability of the rotating shaft 131 are improved. In addition, the positioning block 134 may be an elastic block structure, which provides a buffer, reduces wear during rotation of the rotating shaft 131, and facilitates assembly and disassembly. Of course, the rotation of the rotating shaft 131 may be facilitated by providing a bearing, an abrasion resistant layer, or the like between the rotating shaft 131 and the positioning seat 133.

The positioning seat 133 may be integrally formed with the upper suspension arm 13, or the positioning seat 133 and the upper suspension arm 13 may be separately formed, and the positioning seat 133 is fixedly connected to the upper suspension arm 13 by welding or the like.

As shown in the drawings, in some embodiments of the present invention, the suspension base 12 is provided with a third hinge point c hinged to the upper suspension arm 13, a fourth hinge point d hinged to the lower suspension arm 14, and a fifth hinge point e hinged to the first link 151, the fifth hinge point e being located between the third hinge point c and the fourth hinge point d. Thereby, the adjustment of the adjusting bracket 100 can be facilitated, and the rotation range of the hanging seat 12 can be increased, thereby increasing the adjustment range of the hanging seat 12.

As shown in the drawings, in some embodiments of the present invention, the first link 151 and the second link 152 have a sixth hinge point f therebetween, the first link 151 and the pretensioning mechanism 16 have a seventh hinge point g therebetween, the first link 151 and the suspension base 12 have a fifth hinge point e therebetween, and the sixth hinge point f is located between the fifth hinge point e and the seventh hinge point g.

As shown in the figures, the upper suspension arm 13 and the lower suspension arm 14 of the present invention can be configured to extend in the front-rear direction, the front end of the upper suspension arm 13 is hinged to the suspension seat 12, the rear end of the upper suspension arm 13 is hinged to the support seat 11, the front end of the lower suspension arm 14 is hinged to the suspension seat 12, the rear end of the lower suspension arm is hinged to the support seat 11, the upper suspension arm 13 is disposed on the upper side of the lower suspension arm 14, and the support seat 11, the suspension seat 12, the upper suspension arm 13 and the lower suspension arm 14 are connected to form a parallel four-bar linkage mechanism. The front end of the first connecting rod 151 is hinged with the suspension seat 12, the rear end of the first connecting rod 151 is hinged with the front end of the pre-tightening mechanism 16, the rear end of the pre-tightening mechanism 16 can be hinged with the upper cantilever 13 or can be hinged with the support seat 11 or the lower cantilever 14, the upper end of the second connecting rod 152 can be hinged with the first connecting rod 151, the lower end of the second connecting rod 152 can be hinged with the lower cantilever 14, and the hinged point of the first connecting rod 151 and the suspension seat 12 can be higher than the hinged point of the suspension seat 12 and the lower cantilever 14.

As shown in the drawings, the upper suspension arm 13 and the lower suspension arm 14 extend in the forward and backward directions, the hinge point of the first link 151 and the second link 152 is higher than the hinge point of the second link 152 and the lower suspension arm 14, and the hinge point of the first link 151 and the suspension base 12 is higher than the hinge point of the suspension base 12 and the lower suspension arm 14. Therefore, the stability of the adjusting bracket 100 can be improved, the suspension base 12 can be supported by the tensile elasticity of the pre-tightening mechanism 16, and the stability of the adjusting bracket 100 can be improved.

Of course, other structures are also possible for the pre-tightening mechanism 16 or the like having a compressive elasticity, as will be understood by those skilled in the art.

As described above, the present invention relates to an adjusting bracket 100 for supporting a monitor using the bidirectional tension of a first link 151, and more particularly, to maintaining the stability of the monitor by the bidirectional link tension when the adjusting bracket 100 is raised and lowered.

Compared with the prior art, the suspension base 12 has a larger adjusting range, and can stably support devices such as a display screen in a larger range, especially when the suspension base 12 is adjusted to the maximum upward position and the minimum downward position, the stable supporting force can still be provided for the devices such as the display screen, and the problems in the related art are avoided (in the related art, when the adjusting arm is lifted to a horizontal position, the display can droop, and when the adjusting arm is lowered to a horizontal position, the display can rebound).

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. The utility model provides an adjust support (100), includes supporting seat (11), hangs seat (12), goes up cantilever (13) and lower cantilever (14), go up cantilever (13) respectively with supporting seat (11) with hang seat (12) articulated, lower cantilever (14) respectively with supporting seat (11) with hang seat (12) articulated, supporting seat (11) go up cantilever (13), lower cantilever (14) and hang seat (12) and connect into four link mechanism in plane, its characterized in that, adjust support (100) still include:

a link structure (15), wherein the link structure (15) is closer to the suspension base (12) than the support base (11), the link structure (15) comprises a first link (151) and a second link (152), a first end of the first link (151) is hinged to the suspension base (12), a first end of the second link (152) is hinged to the lower suspension arm (14), a second end of the second link (152) is hinged to the first link (151), and the first link (151), the second link (152), the lower suspension arm (14) and the suspension base (12) are connected to form a planar four-bar linkage;

and a first end of the pre-tightening mechanism (16) is hinged with a second end of the first connecting rod (151), and a second end of the pre-tightening mechanism (16) is hinged at a position close to the supporting seat (11).

2. The adjusting carriage (100) according to claim 1, characterised in that the supporting seat (11) has a first hinge point (a) articulated to the upper suspension arm (13) and a second hinge point (b) articulated to the lower suspension arm (14), the suspension seat (12) has a third hinge point (c) articulated to the upper suspension arm (13) and a fourth hinge point (d) articulated to the lower suspension arm (14), the connection line between the first hinge point (a) and the third hinge point (c) is a first connection line (ac), the connection line between the second hinge point (b) and the fourth hinge point (d) is a second connection line (bd), and the pre-tensioning mechanism (16) is inclined in a direction extending from the supporting seat (11) to the suspension seat (12) in a direction from the first connection line (ac) to the second connection line (bd).

3. The adjusting bracket (100) according to claim 2, wherein the upper suspension arm (13) comprises a top wall, the lower suspension arm (14) comprises a bottom wall, an accommodating space is formed between the top wall and the bottom wall, the pre-tightening mechanism (16) is arranged in the accommodating space, a first end of the pre-tightening mechanism (16) is closer to the bottom wall than the top wall, a second end of the pre-tightening mechanism (16) is closer to the top wall than the bottom wall, a concave portion (141) which is concave towards a direction away from the top wall is arranged on the bottom wall, and the concave portion (141) is close to the first end of the suspension seat (12) for abdicating the pre-tightening mechanism (16).

4. The adjusting carriage (100) according to any one of claims 1 to 3, characterised in that the first linkage (151) comprises a first limb (1511) and a second limb (1512), one end of the first limb (1511) being hinged to the suspension seat (12) and the other end of the first limb (1511) extending towards the support seat (11) and being hinged to the second linkage (152), one end of the second limb (1512) being connected to the other end of the first limb (1511), the other end of the second limb (1512) extending towards the support seat (11) and being inclined towards the bottom wall of the lower cantilever (14) in the direction of extension towards the support seat (11) and being hinged to the first end of the pretensioning mechanism (16).

5. The adjusting carriage (100) according to any of claims 1 to 3, characterised in that the lower suspension arm (14) and the upper suspension arm (13) are arranged opposite to each other, and a receiving chamber (101) is formed between the lower suspension arm (14) and the upper suspension arm (13), and the link structure (15) and the pretensioning mechanism (16) are both arranged in the receiving chamber (101).

6. The adjusting carriage (100) according to any of claims 1 to 3, characterized in that the pretensioning mechanism (16) comprises:

one end of the pre-tightening spring (161) is hinged to the first connecting rod (151), the other end of the pre-tightening spring (161) extends towards the supporting seat (11), and a nut (163) is arranged on the pre-tightening spring (161);

one end of the adjusting bolt (162) is in threaded transmission connection with the nut (163), and the other end of the adjusting bolt (162) extends towards the supporting seat (11) and is hinged to the upper cantilever (13).

7. The adjusting bracket (100) according to claim 6, wherein a rotating shaft (131) is provided on the upper cantilever (13), and a mounting hole (132) is provided on the rotating shaft (131), an axis of the mounting hole (132) is perpendicular to an axis of the rotating shaft (131) so as to allow the adjusting bolt (162) to pass through the mounting hole (132) and to rotate, the rotating shaft (131) is rotatably connected to the upper cantilever (13) so as to allow the adjusting bolt (162) to be hinged to the upper cantilever (13), and an adjusting hole (135) opposite to a head (162 a) of the adjusting bolt (162) is provided on the upper cantilever (13).

8. The adjusting bracket (100) according to claim 7, wherein a positioning seat (133) and a positioning block (134) are provided on the upper cantilever (13), the positioning seat (133) is fixed on the upper cantilever (13), and a positioning groove (136) is provided on the positioning seat (133), the rotating shaft (131) is rotatably embedded in the positioning groove (136), the positioning block (134) is fixedly connected with the positioning seat (133), and a portion of the positioning block (134) is located at an opening of the positioning groove (136) and abuts against the rotating shaft (131).

9. The adjusting carriage (100) according to any of claims 1-3, characterized in that the suspension seat (12) is provided with a third hinge point (c) hinged to the upper suspension arm (13), a fourth hinge point (d) hinged to the lower suspension arm (14), and a fifth hinge point (e) hinged to the first link (151), the fifth hinge point (e) being located between the third hinge point (c) and the fourth hinge point (d);

and/or a sixth hinge point (f) is arranged between the first connecting rod (151) and the second connecting rod (152), a seventh hinge point (g) is arranged between the first connecting rod (151) and the pre-tightening mechanism (16), a fifth hinge point (e) is arranged between the first connecting rod (151) and the suspension seat (12), and the sixth hinge point (f) is arranged between the fifth hinge point (e) and the seventh hinge point (g).

10. The adjusting carriage (100) according to any of claims 1 to 3, characterized in that the upper suspension arm (13) and the lower suspension arm (14) extend in a forward-backward direction, the first link (151) and the second link (152) have a higher hinge point than the second link (152) and the lower suspension arm (14), and the first link (151) and the suspension seat (12) have a higher hinge point than the suspension seat (12) and the lower suspension arm (14).