Adjustable constant force support structure

Abstract

The utility model discloses an adjustable constant force support structure which comprises an adjusting seat, a swivel seat, an arm and an elastic assembly, one end of the arm is hinged with the swivel seat around a first horizontal rotating shaft in a rotating mode, the other end of the arm is hinged with the adjusting seat around a second horizontal rotating shaft in a rotating mode, and the elastic assembly comprises an elastic element, a front connecting piece and a rear connecting piece. The front connecting piece, the elastic element and the rear connecting piece are sequentially hinged around a third horizontal rotating shaft and a fourth horizontal rotating shaft in a rotating mode, the end, back to the elastic element, of the front connecting piece is hinged to the swivel base in a rotating mode around a fifth horizontal rotating shaft, and the end, back to the elastic element, of the rear connecting piece is hinged to the adjusting base in a rotating mode around a sixth horizontal rotating shaft. According to the utility model, after a display is hung on the rotating head seat, the rotating head seat keeps moving up and down and hovering under the action of constant force within the force value range of the arm, and the whole structure is small, exquisite and attractive.

Description

Technical Field

[0001] This utility model relates to a monitor bracket, and more particularly to an adjustable constant force bracket structure. Background Technology

[0002] Monitors are used in many places, such as homes, offices, and public places. They are often mounted on monitor stands. Currently, the height and horizontal angle adjustment of monitors are achieved by clamping plastic pads between the arms and relying on friction. These plastic pads are easily worn and damaged during long-term use, resulting in poor stability after the monitor's height and horizontal angle adjustment. It is difficult to maintain stable support and state for a long time. Moreover, the adjustment often requires tightening and loosening screws, which is cumbersome. It is also affected by the friction value, has a small load-bearing range for the monitor, and is complicated to assemble. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides an adjustable constant force support structure. This adjustable constant force support structure can automatically hover after the display height is adjusted. It has a simple structure and an aesthetically pleasing appearance.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: an adjustable constant force support structure, including an adjustment seat, a rotating head seat, an arm, and an elastic component. One end of the arm is hinged to the rotating head seat, which can rotate around a first horizontal axis, and the other end of the arm is hinged to the adjustment seat, which can rotate around a second horizontal axis. The elastic component includes an elastic element that can elastically extend and retract, a front connecting piece, and a rear connecting piece. The front connecting piece, the elastic element, and the rear connecting piece are hinged sequentially around a third horizontal axis and a fourth horizontal axis. The end of the front connecting piece facing away from the elastic element is hinged to the rotating head seat, which can rotate around a fifth horizontal axis, and the end of the rear connecting piece facing away from the elastic element is hinged to the adjustment seat, which can rotate around a sixth horizontal axis. The elastic element, whose initial elastic force is adjustable, can be installed inside the arm and slides linearly a set distance along the length of the arm.

[0005] As a further improvement of this utility model, two support plates are provided, with a first through hole and a second through hole at each end of the support plate. The two support plates are respectively sandwiched between the elastic element and the inner wall of the arm, and the first through hole and the second through hole are respectively sleeved on the third horizontal rotating shaft and the fourth horizontal rotating shaft.

[0006] As a further improvement of this utility model, the elastic element includes a spring, an adjusting bolt, and a connecting piece. The connecting piece is fixedly installed on one end of the spring. The stud of the adjusting bolt is movably screwed to the connecting piece. The stud of the adjusting bolt can be accommodated in the inner ring of the spring. An clearance adjustment hole is formed on the arm, which is directly opposite to the head of the adjusting bolt. Hardware tools can be inserted into the arm through the clearance adjustment hole and rotate the adjusting bolt.

[0007] As a further improvement of this utility model, the first elongated groove and the second elongated groove are respectively provided on the side walls at both ends of the arm, and the first elongated groove and the second elongated groove both extend along the length direction of the arm. The ends of the third horizontal rotating shaft and the fourth horizontal rotating shaft are respectively slidably inserted into the first elongated groove and the second elongated groove.

[0008] As a further improvement of this utility model, the other end of the spring is formed with a hinged hook ring, which is sleeved on the outside of the third horizontal rotating shaft. The fourth horizontal rotating shaft is provided with a first radial through hole, and the adjusting bolt passes through the first radial through hole of the fourth horizontal rotating shaft.

[0009] As a further improvement of this utility model, an adjusting bolt limiting shaft is also provided. The adjusting bolt limiting shaft is provided with a second radial through hole. The adjusting bolt passes through the second radial through hole of the adjusting bolt limiting shaft. The outer circumferential wall of the adjusting bolt limiting shaft stops on the stepped surface of the head and stud of the adjusting bolt. The two ends of the adjusting bolt limiting shaft are rotatably mounted on the adjusting seat.

[0010] As a further improvement of this utility model, the upper end of the adjusting seat forms a U-shaped structure, and the two side walls of the U-shaped structure of the adjusting seat are respectively provided with first horizontal hinge holes. The other end of the arm is sleeved on the outside of the U-shaped structure at the upper end of the adjusting seat, and the two side walls of the other end of the arm are respectively provided with second horizontal hinge holes. The adjusting bolt limiting shaft is located in the first horizontal hinge holes on the two side walls of the U-shaped structure of the adjusting seat. The two ends of the adjusting bolt limiting shaft are respectively provided with screw holes. The sixth horizontal rotating shaft is a screw. The two screws pass through the second horizontal hinge holes on the side wall of the other end of the arm and are finally screwed into the screw holes at both ends of the adjusting bolt limiting shaft.

[0011] As a further improvement of this utility model, the bottom surface of the U-shaped structure on the adjusting seat is a pointed bottom structure with a middle height higher than the height on both sides, and the screw part and head of the adjusting bolt are respectively stopped on both sides of the bottom surface of the U-shaped structure on the adjusting seat.

[0012] As a further improvement of this utility model, the arm includes a left arm cover, a right arm cover, and a decorative cover. The left arm cover and the right arm cover, which are U-shaped, are joined together to form a sleeve-shaped structure. The side walls of the U-shaped structure of the left arm cover and the right arm cover are respectively provided with clearance notches for the insertion and clearance of the rotating head seat and the adjusting seat. At least one end of the left arm cover and the right arm cover is also provided with a base plate that closes the opening of the sleeve-shaped structure towards the adjusting seat. A clearance adjustment hole for hardware tools to be inserted into the arm to rotate the adjusting bolt is provided on the base plate. The decorative cover is detachably fixed to the base plate by a snap-fit ​​structure.

[0013] As a further improvement of this utility model, the side wall of the rotating head seat is provided with an open groove structure, one end of the front connecting piece is inserted into the open groove structure, and one end of the arm is sleeved on the outside of the rotating head seat.

[0014] The beneficial effects of this utility model are as follows: By setting a front connecting piece and a rear connecting piece, the two ends of the front connecting piece are respectively hinged to the rotating head seat and one end of the elastic element, and the two ends of the rear connecting piece are respectively hinged to the adjusting seat and the other end of the elastic element. The force value of one end of the front connecting piece is acted upon by the elastic element, and the other end is used to output and transmit the force value of the elastic element, so that the rotating head seat has a force value. The force value of one end of the rear connecting piece is acted upon by the elastic element, and the other end is used to output and transmit the force value of the elastic element, so that the adjusting seat has a force value. The force output points at both ends of the elastic component are on the rotating head seat and the adjusting seat, respectively. Thus, after the rotating head seat suspends the monitor, it can maintain vertical movement and suspension under the constant force within the arm's force range. Moreover, the elastic element can only extend, stretch, and slide within the arm and cannot produce other movements, which can ensure that the rotating head seat always extends in the vertical direction, thereby avoiding changes in the monitor's tilt angle during the adjustment of the arm's swing angle. The elastic component and the support plate of this application are hidden inside the arm, avoiding the support plate being exposed, making the overall structure compact and aesthetically pleasing. Attached Figure Description

[0015] Figure 1 This is an exploded perspective view of the present invention;

[0016] Figure 2 This is a first perspective view of the structural principle of this utility model;

[0017] Figure 3 This is a second perspective view of the structural principle of this utility model;

[0018] Figure 4 This is a top view of the structural principle of this utility model;

[0019] Figure 5 This is a front view of the right arm cover of this utility model;

[0020] Figure 6This is a front view of the arm of this utility model in an upward-tilting position.

[0021] Figure 7 for Figure 6 Sectional view along line AA;

[0022] Figure 8 This is a top view of the arm of this utility model in an upward-tilting position;

[0023] Figure 9 for Figure 8 Sectional view along the BB direction;

[0024] Figure 10 This is a front view of the arm of this utility model in a horizontal position.

[0025] Figure 11 This is a schematic diagram of the internal structure of the arm of this utility model in a horizontal position.

[0026] Figure 12 This is a front view of the arm of this utility model in a downward tilting state;

[0027] Figure 13 This is a schematic diagram of the internal structure of the arm of this utility model in a downward tilting state. Detailed Implementation

[0028] Example: An adjustable constant force support structure includes an adjustment seat 1, a rotating head seat 2, an arm 3, and an elastic component 4. One end of the arm 3 is hinged to the rotating head seat 2, which can rotate around a first horizontal rotating axis 5, and the other end of the arm 3 is hinged to the adjustment seat 1, which can rotate around a second horizontal rotating axis 6. The elastic component 4 includes an elastic element capable of elastic extension and retraction, a front connecting piece 147, and a rear connecting piece 148. The front connecting piece 147, the elastic element, and the rear connecting piece 148 are hinged sequentially around a third horizontal rotating axis 9 and a fourth horizontal rotating axis 10. The end of the front connecting piece 147 facing away from the elastic element is hinged to the rotating head seat 2, which can rotate around a fifth horizontal rotating axis 27, and the end of the rear connecting piece 148 facing away from the elastic element is hinged to the adjustment seat 1, which can rotate around a sixth horizontal rotating axis 28. The elastic element, whose initial elastic force is adjustable, is installed inside the arm 3 and can slide linearly a set distance along the length of the arm 3.

[0029] In this structure, the elastic element of the elastic component 4 can move linearly on the arm 3. The force output points at both ends of the elastic component 4 are on the rotating head seat 2 and the adjusting seat 1, respectively. This allows the rotating head seat 2 to maintain its vertical movement and hover under the constant force within the force range of the arm 3 after the display is suspended. One end of the front connecting piece 147 is subjected to the force of the elastic element, while the other end is used to output and transmit the force of the elastic element, thus maintaining a force on the rotating head seat 2. One end of the rear connecting piece 148 is subjected to the force of the elastic element, while the other end is used to output and transmit the force of the elastic element, thus maintaining a force on the adjusting seat 1.

[0030] After the monitor height is adjusted, the arm 3, the rotating base 2, and the front connecting piece 147 form a triangular structure, providing stable support for the rotating base 2. Simultaneously, the arm 3, the adjustment base 1, and the rear connecting piece 148 also form a triangular structure, providing stable support for the tilt angle of the arm 3. This ensures that the monitor height remains stable after adjustment. During the height adjustment process, as the tilt angle of the arm 3 changes, the front connecting piece 147 and the rear connecting piece 148 rotate accordingly, while the elastic element slides back and forth within the arm 3 to adapt to the angle changes of the front connecting piece 147 and the rear connecting piece 148. When the monitor weight changes, simply adjust the initial elastic force of the elastic component 4 to match the monitor weight. This design results in a smaller overall product size and a more aesthetically pleasing and streamlined appearance.

[0031] Two support plates 11 are also provided, each with a first through hole and a second through hole at its two ends. The two support plates 11 are respectively sandwiched between the elastic element and the inner wall of the arm 3. The first through hole and the second through hole are respectively fitted onto the third horizontal rotating shaft 9 and the fourth horizontal rotating shaft 10. The support plates 11 support and reinforce the elastic element to prevent radial deformation, while keeping the distance between the third horizontal rotating shaft 9 and the fourth horizontal rotating shaft 10 constant.

[0032] The elastic element includes a spring 12, an adjusting bolt 13, and a connecting piece 14. The connecting piece 14 is fixedly installed on one end of the spring 12. The stud of the adjusting bolt 13 is movably screwed to the connecting piece 14. The stud of the adjusting bolt 13 can be accommodated in the inner ring of the spring 12. An adjustment hole 15 is formed on the arm 3, which is directly opposite to the head of the adjusting bolt 13. Hardware tools can be inserted into the arm 3 through the adjustment hole 15 and rotate the adjusting bolt 13.

[0033] The connecting piece 14 can be locked in the coil gap at one end of the spring 12 to achieve a fixed connection with one end of the spring 12, or it can be welded to the coil at one end of the spring 12. When the elastic element of this structure is initially adjusted, the initial compression of the spring 12 can be changed by simply rotating the adjusting bolt 13, thereby changing the initial elastic force of the elastic element.

[0034] The arm 3 has a first elongated groove 16 and a second elongated groove 17 on its two end sidewalls, both extending along the length of the arm 3. The third horizontal rotating shaft 9 and the fourth horizontal rotating shaft 10 are slidably inserted into the first elongated groove 16 and the second elongated groove 17 at both ends. The first elongated groove 16 and the second elongated groove 17 guide the sliding of the third horizontal rotating shaft 9 and the fourth horizontal rotating shaft 10 and limit their sliding distance, respectively, thus ensuring that the elastic element always slides linearly within the arm 3 without making other movements. At the same time, the sliding distance limitation restricts the pitch angle of the arm 3. Ideally, bearings 29 are installed at both ends of the third horizontal rotating shaft 9 and the fourth horizontal rotating shaft 10, so that the third horizontal rotating shaft 9 in the first elongated groove 16 and the fourth horizontal rotating shaft 10 in the second elongated groove 17 undergo rolling friction, reducing friction.

[0035] The other end of the spring 12 has a hinged hook 18, which is sleeved on the outside of the third horizontal rotating shaft 9. The fourth horizontal rotating shaft 10 has a first radial through hole, and the adjusting bolt 13 passes through the first radial through hole of the fourth horizontal rotating shaft 10. The fourth horizontal rotating shaft 10 is sleeved on the adjusting bolt 13 through the first radial through hole, and the adjusting bolt 13 will not interfere with the fourth horizontal rotating shaft 10 when it rotates.

[0036] An adjusting bolt limiting shaft 19 is also provided, which has a second radial through hole. The adjusting bolt 13 passes through the second radial through hole of the adjusting bolt limiting shaft 19, and the outer circumferential wall of the adjusting bolt limiting shaft 19 stops on the stepped surface of the head and stud of the adjusting bolt 13. Both ends of the adjusting bolt limiting shaft 19 are rotatably mounted on the adjusting seat 1. In use, the adjusting bolt 13 is inserted into the second radial through hole of the adjusting bolt limiting shaft 19. Since the spring 12 is in a compressed state, the head of the adjusting bolt 13 is always in close contact with the outer circumferential wall of the adjusting bolt limiting shaft 19. The outer circumferential wall of the adjusting bolt limiting shaft 19 is preferably formed with a contact surface perpendicular to the second radial through hole by removing the material. The contact surface can stably contact the head of the adjusting bolt 13.

[0037] The upper end of the adjusting seat 1 forms a U-shaped structure. The two side walls of the U-shaped structure of the adjusting seat 1 are respectively provided with first horizontal hinge holes 20. The other end of the arm 3 is sleeved on the outside of the U-shaped structure at the upper end of the adjusting seat 1. The two side walls of the other end of the arm 3 are respectively provided with second horizontal hinge holes 21. The adjusting bolt limiting shaft 19 is located in the first horizontal hinge holes 20 on the two side walls of the U-shaped structure of the adjusting seat 1. The two ends of the adjusting bolt limiting shaft 19 are respectively provided with screw holes 22. The sixth horizontal rotating shaft 28 is a screw. The two screws pass through the second horizontal hinge holes 21 on the side wall of the other end of the arm 3 and are finally screwed into the screw holes 22 at both ends of the adjusting bolt limiting shaft 19. The adjusting bolt limiting shaft 19 is used to limit the position of the adjusting bolt 13 on the one hand, and on the other hand, it is screwed with the screw to form an integral structure, which can serve as the hinge shaft between the arm 3 and the adjusting seat 1. It is best to set a friction pad between the arm 3 and the adjusting seat 1, and by tightening the screw, a large friction force is formed between the arm 3 and the adjusting seat 1, which helps to position the angle of the arm 3 and can prevent the arm 3 from swinging rapidly in an instant when the adjusting bolt 13 is rotated.

[0038] The bottom surface of the U-shaped structure on the adjusting seat 1 is a pointed structure with a higher middle section than the two sides. The screw part and the head of the adjusting bolt 13 are respectively stopped on both sides of the bottom surface of the U-shaped structure on the adjusting seat 1. By setting a front and rear inclined surface on the bottom surface of the U-shaped structure of the adjusting seat 1 with the sixth horizontal rotating shaft 28 as the dividing point, the adjustment bolt 13 can avoid the swing of the arm 3 and the swing angle range can be limited.

[0039] The arm 3 includes a left arm cover 23, a right arm cover 24, and a decorative cover 25. The left arm cover 23 and the right arm cover 24, which are U-shaped, are joined together to form a sleeve-shaped structure. The side walls of the U-shaped structure of the left arm cover and the right arm cover 24 are respectively provided with clearance notches for the head seat 2 and the adjusting seat 1 to be inserted and avoid each other. At least one end of the left arm cover 23 and the right arm cover 24 is also provided with a base plate that closes the opening of the sleeve-shaped structure towards the adjusting seat 1. A clearance adjustment hole 15 for hardware tools to be inserted into the arm 3 to rotate the adjusting bolt 13 is provided on the base plate. The decorative cover 25 is detachably fixed to the base plate by a snap-fit ​​structure.

[0040] The arm 3 is designed with a plug-in splicing structure to facilitate the assembly of internal parts such as the elastic component 4. The hinge joints of the arm 3 with the adjustment seat 1 and the rotating head seat 2 are covered at both ends to protect the joints. The decorative cover 25 can be detachably installed on the base plate of the arm 3 to cover the clearance adjustment hole 15, which not only serves an aesthetic purpose but also prevents dust and other contaminants from entering the arm 3.

[0041] The rotating head seat 2 has an open slot structure 26 on its side wall. One end of the front connecting piece 147 is inserted into the open slot structure 26, and one end of the arm 3 is sleeved on the outside of the rotating head seat 2. Two grooves coaxial with the first horizontal rotating shaft 5 can also be provided on the outer side wall of the rotating head seat 2. A boss is provided on one end of the arm 3. During assembly, one end of the arm 3 is tightly attached to the outer side surface of the rotating head seat 2, and the boss on the arm 3 extends into the groove on the side wall of the rotating head seat 2 and abuts against the bottom surface of the groove. A friction pad can also be provided between the boss and the bottom surface of the groove.

Claims

1. An adjustable constant force support structure, comprising an adjustment seat (1), a rotating head seat (2), an arm (3), and an elastic component (4), wherein one end of the arm is hinged to the rotating head seat, which is rotatable about a first horizontal axis (5), and the other end of the arm is hinged to the adjustment seat, which is rotatable about a second horizontal axis (6), characterized in that: The elastic component includes an elastic element capable of elastic extension and retraction, a front connecting piece (7), and a rear connecting piece (8). The front connecting piece, the elastic element, and the rear connecting piece are connected by hinges that rotate sequentially around a third horizontal axis (9) and a fourth horizontal axis (10). The end of the front connecting piece facing away from the elastic element is connected by a hinge that allows the rotating head seat to rotate around a fifth horizontal axis (27). The end of the rear connecting piece facing away from the elastic element is connected by a hinge that allows the adjusting seat to rotate around a sixth horizontal axis (28). The elastic element, whose initial elastic force is adjustable, can slide linearly a set distance along the length of the arm and is installed inside the arm.

2. The adjustable constant force support structure according to claim 1, characterized in that: Two support plates (11) are also provided. The two ends of the support plates are respectively provided with a first through hole and a second through hole. The two support plates are respectively sandwiched between the elastic element and the inner wall of the arm. The first through hole and the second through hole are respectively sleeved on the third horizontal rotating shaft and the fourth horizontal rotating shaft.

3. The adjustable constant force support structure according to claim 1, characterized in that: The elastic element includes a spring (12), an adjusting bolt (13), and a connecting piece (14). The connecting piece is fixedly installed on one end of the spring. The stud of the adjusting bolt is movably screwed to the connecting piece. The stud of the adjusting bolt can be accommodated in the inner ring of the spring. An clearance adjustment hole (15) is formed on the arm, which is directly opposite to the head of the adjusting bolt. Hardware tools can be inserted into the arm through the clearance adjustment hole and rotate the adjusting bolt.

4. The adjustable constant force support structure according to claim 3, characterized in that: The arm has a first elongated groove (16) and a second elongated groove (17) on its two side walls, and both the first elongated groove and the second elongated groove extend along the length of the arm. The third horizontal rotating shaft and the fourth horizontal rotating shaft are slidably inserted into the first elongated groove and the second elongated groove, respectively.

5. The adjustable constant force support structure according to claim 4, characterized in that: The other end of the spring is formed with a hinge hook (18), which is sleeved on the outside of the third horizontal rotating shaft. The fourth horizontal rotating shaft is provided with a first radial through hole, and the adjusting bolt passes through the first radial through hole of the fourth horizontal rotating shaft.

6. The adjustable constant force support structure according to claim 4, characterized in that: It is also provided with an adjusting bolt limiting shaft (19), on which a second radial through hole is provided. The adjusting bolt passes through the second radial through hole of the adjusting bolt limiting shaft, and the outer circumferential wall of the adjusting bolt limiting shaft stops on the stepped surface of the head and stud of the adjusting bolt. Both ends of the adjusting bolt limiting shaft are rotatably mounted on the adjusting seat.

7. The adjustable constant force support structure according to claim 6, characterized in that: The upper end of the adjustment seat forms a U-shaped structure. The two side walls of the U-shaped structure of the adjustment seat are respectively provided with first horizontal hinge holes (20). The other end of the arm is sleeved on the outside of the U-shaped structure at the upper end of the adjustment seat. The two side walls of the other end of the arm are respectively provided with second horizontal hinge holes (21). The adjusting bolt limiting shaft is located in the first horizontal hinge holes on the two side walls of the U-shaped structure of the adjustment seat. The two ends of the adjusting bolt limiting shaft are respectively provided with screw holes (22). The sixth horizontal rotating shaft is a screw. The two screws pass through the second horizontal hinge holes on the side wall of the other end of the arm and are finally screwed into the screw holes at both ends of the adjusting bolt limiting shaft.

8. The adjustable constant force support structure according to claim 7, characterized in that: The bottom surface of the U-shaped structure on the adjusting seat is a pointed structure with a height in the middle higher than the height on both sides. The screw part and the head of the adjusting bolt are respectively stopped on both sides of the bottom surface of the U-shaped structure on the adjusting seat.

9. The adjustable constant force support structure according to claim 1 or 7, characterized in that: The arm includes a left arm cover (23), a right arm cover (24), and a decorative cover (25). The left arm cover and the right arm cover, which are U-shaped, are joined together to form a sleeve-shaped structure. The side walls of the U-shaped structure of the left arm cover and the right arm cover are respectively provided with clearance notches for the head seat and the adjustment seat to be inserted and avoid each other. At least one end of the left arm cover and the right arm cover is provided with a base plate that closes the opening of the sleeve-shaped structure towards the adjustment seat. A clearance adjustment hole for hardware tools to be inserted into the arm to rotate the adjustment bolt is provided on the base plate. The decorative cover is detachably fixed to the base plate by a snap-fit ​​structure.

10. The adjustable constant force support structure according to claim 1, characterized in that: The rotating head seat has an opening groove structure (26) on its side wall. One end of the front connecting piece is inserted into the opening groove structure, and one end of the arm is sleeved on the outside of the rotating head seat.

Images