Electronic device balance force control mechanism

Abstract

The application discloses a kind of electronic equipment balanced force control mechanism, including adjusting seat, adjusting arm and elastic piece, the adjusting arm one end is hinged to be located on adjusting seat, and locating camber surface is formed on the side wall of adjusting seat, and the one end of elastic piece elastic telescopic direction is fixedly installed on adjusting arm, and the other end of elastic piece elastic telescopic direction is always close to the locating camber surface on the side wall of adjusting seat, and the elastic telescopic direction of elastic piece is always over the center of locating camber surface with adjusting arm rotating, the whole structure of the present application is simple, and the manufacturing cost is low, stable in use, can form self-balancing structure, and cantilever support pitch adjusting arm pitch angle adjustment is completed and can keep stable position state unchanged for a long time.

Description

Technical Field

[0001] This invention relates to a support device for electronic devices, and more particularly to a balancing force control mechanism for electronic devices. Background Technology

[0002] Currently, most electronic products are mounted on walls using brackets. Cantilever brackets are widely used because they can adjust the position and angle of electronic devices, especially in the installation of monitors. The arm of the cantilever bracket can adjust the height of the electronic device by rotating up and down around a horizontal axis. After the height of the electronic device is adjusted, the arm of the bracket needs to maintain the adjusted angle. There are several ways to achieve this. One method is to use screws and washers to lock the bracket in place, using friction for positioning. However, this method is automatically activated by the electronic device, and the arm will droop over time, causing the adjustment angle to change. Another method is to hinge a gas spring inside the arm, forming a triangle with the arm and the adjustment base to achieve stable support. The spring force can be changed by adjusting the hinge position of the gas spring and the adjustment base to achieve a balanced tilt angle. However, this adjustment method is also inconvenient to maintain a stable adjustment angle over a long period of time, and the structure is relatively complex and has a high manufacturing cost. Summary of the Invention

[0003] To overcome the above deficiencies, the present invention provides an electronic device balancing force control mechanism, which enables the arm of the cantilever bracket to maintain force balance at any angle when swinging up and down, avoiding changes in the adjustment angle after long-term use, and ensuring that the electronic device maintains a stable position after adjustment.

[0004] The technical solution adopted by the present invention to solve its technical problem is: an electronic device balance force control mechanism, including an adjustment seat, an adjustment arm and an elastic element. One end of the adjustment arm is hinged to the adjustment seat, and a positioning arc surface is formed on the side wall of the adjustment seat. One end of the elastic element in the elastic extension direction is fixedly installed on the adjustment arm, and the other end of the elastic element in the elastic extension direction is always in close contact with the positioning arc surface on the side wall of the adjustment seat. As the adjustment arm rotates, the elastic extension direction of the elastic element always passes through the center of the positioning arc surface.

[0005] As a further improvement of the present invention, the positioning arc surface on the side wall of the adjusting seat includes a first concave arc surface, a second concave arc surface and a convex arc surface, and the first concave arc surface, the convex arc surface and the second concave arc surface are sequentially tangentially connected along the rotation direction of the adjusting arm to form an integral structure.

[0006] As a further improvement of the present invention, the elastic element includes a spring and a constant force sleeve. One end of the spring is fixedly positioned to the side wall of the other end of the adjusting arm. One end of the constant force sleeve is provided with a roller that can rotate. The roller makes rolling contact with the positioning arc surface. The other end of the constant force sleeve is provided with at least one of a plug post and a plug sleeve. The plug post is inserted into the inner side of the other end of the spring, and the plug sleeve is sleeved on the outer side of the other end of the spring.

[0007] As a further improvement of the present invention, the elastic element further includes an adjusting screw and a spring positioning block. The adjusting screw is rotatable in the circumferential direction and axially stopped on the adjusting arm. The adjusting screw is movably screwed to the spring positioning block, and the spring positioning block is stopped and positioned at one end of the spring.

[0008] As a further improvement of the present invention, the spring positioning block includes a spherical body and a limiting protrusion. At least one limiting protrusion is fixedly disposed on the outer surface of the spherical body at intervals. The spherical body is tightly abutted against one end surface of the spring. The diameter of the spherical body is larger than the inner diameter of one end of the spring. The inner side of the adjusting arm is provided with at least one concave groove. The limiting protrusion on the outer side of the spherical body is inserted into the concave groove in a stop manner along the circumferential direction of the adjusting screw.

[0009] As a further improvement of the present invention, the elastic element further includes a guide sleeve that matches the outer diameter of the spring. The guide sleeve is fixedly installed on the inner side of the adjusting arm, and the spring is inserted into the guide sleeve to extend and retract.

[0010] As a further improvement of the present invention, the adjusting arm includes an arm body, a support plate, and a rotating head seat. The two ends of the arm body and the support plate are respectively hinged to the adjusting seat and the rotating head seat. The adjusting seat, the arm body, the support plate, and the rotating head seat form a parallelogram structure. The guide sleeve includes an upper fixing member, a lower fixing member, and a sliding pad. The upper fixing member and the lower fixing member are respectively fixedly installed on the inner side wall of the arm body. The sliding pad and the upper fixing member both form an arc-shaped cylindrical surface that matches the outer side of the spring on the side facing the spring.

[0011] As a further improvement of the present invention, an upper stop plate perpendicular to the spring extension direction is formed at one end of the upper fixing member, and a lower stop plate perpendicular to the spring extension direction is formed at one end of the lower fixing member. A first opening groove is formed on the upper stop plate, and a second opening groove is formed on the lower stop plate. The upper stop plate stops on the outside of one end of the spring, and a guide groove for the circumferential positioning of the spring positioning block is formed on the side wall of the lower stop plate. An adjusting screw is inserted into the first opening groove and the second opening groove.

[0012] As a further improvement of the present invention, the rotating head seat is provided with an adjusting screw clearance hole, which is directly opposite to the head of the adjusting screw, and the adjusting screw clearance hole allows for the insertion of hardware tools for operating the adjusting screw.

[0013] As a further improvement of the present invention, the arm body is provided with a first limiting protrusion and a second limiting protrusion arranged at intervals along its length direction. The height of the first limiting protrusion is higher than that of the second limiting protrusion, and the first limiting protrusion is further away from the adjustment seat than the second limiting protrusion. The first limiting protrusion presses against the surface of the support plate when the downward angle of the adjustment arm is at its maximum, and the second limiting protrusion presses against the surface of the support plate when the upward angle of the adjustment arm is at its maximum.

[0014] The beneficial technical effects of this invention are as follows: By setting an elastic element that can stretch and contract within the adjusting arm and setting a positioning arc surface on the side wall of the adjusting seat, the elastic element always remains perpendicularly pressed against the positioning arc surface on the side wall of the adjusting seat when it swings with the adjusting arm, so that the arm is always in a state of force balance. Moreover, the elastic element can also provide elastic force by adjusting the screw and the spherical spring positioning block to compress the spring. Compared with the gas spring, its structure is simpler, more stable, and cheaper. This invention also designs the positioning arc surface on the adjusting seat as a three-segment structure, which realizes the limitation and stable positioning of the maximum upward tilt angle, horizontal extension angle, and maximum downward tilt angle of the arm. The overall structure of this invention is simple, the manufacturing cost is low, the use is stable, and it can form a self-balancing structure. After the tilt angle of the cantilever bracket tilt adjusting arm is adjusted, it can maintain a stable position for a long time. Attached Figure Description

[0015] Figure 1 This is a first exploded view of the present invention;

[0016] Figure 2 This is a second exploded view of the present invention;

[0017] Figure 3 This is an exploded view of the elastic element of the present invention;

[0018] Figure 4 This is a front view of the elastic element of the present invention;

[0019] Figure 5 This is a right view of the elastic element of the present invention;

[0020] Figure 6 for Figure 5 Sectional view along line AA;

[0021] Figure 7 This is the front view of the present invention;

[0022] Figure 8 This is a right view of the present invention;

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

[0024] Figure 10 This is a diagram showing the adjustment arm of the present invention at its maximum upward tilt angle;

[0025] Figure 11 This diagram shows the position of the elastic element relative to the adjusting seat at its maximum upward tilt angle.

[0026] Figure 12 This is a diagram showing the adjustment arm of the present invention in a horizontally extended state;

[0027] Figure 13 This is a diagram showing the position of the elastic element relative to the adjusting seat when it extends horizontally.

[0028] Figure 14 This is a diagram showing the adjustable arm of the present invention at its maximum downward angle;

[0029] Figure 15 This is a diagram showing the position of the elastic element relative to the adjusting seat at its maximum downward angle.

[0030] Figure 16 Diagram illustrating the adjustment angle of the arm;

[0031] Figure 17 A perspective view of the adjustment seat for the invention;

[0032] Figure 18 This is a front view of the adjustment seat of the invention;

[0033] Figure 19 Left view of the adjustment seat of the invention. Detailed Implementation

[0034] Example: A balancing force control mechanism for an electronic device includes an adjusting base 1, an adjusting arm 2, and an elastic element 3. One end of the adjusting arm 2 is hinged to the adjusting base 1. A positioning arc surface is formed on the side wall of the adjusting base 1. One end of the elastic element 3 in the elastic extension direction is fixedly installed on the adjusting arm 2. The other end of the elastic element 3 in the elastic extension direction is always in close contact with the positioning arc surface on the side wall of the adjusting base 1. As the adjusting arm 2 rotates, the elastic extension direction of the elastic element 3 always passes through the center of the positioning arc surface.

[0035] In use, the height of the electronic device is adjusted by rotating the adjusting arm 2 around the horizontal axis. During the rotation of the adjusting arm 2, the elastic element 3 on the adjusting arm 2 is always pressed against the positioning arc surface of the adjusting seat 1. Since the elastic element 3 always extends radially along the positioning arc surface, the elastic element 3 provides a radial resistance force to the positioning arc surface. This resistance force forms a force balance at the contact point of the positioning arc surface of the adjusting seat 1, so that the adjusting arm 2 can maintain force balance at any angle within the set range, automatically positioning itself. It will not sag due to gravity during long-term use, ensuring that the pitch angle of the adjusting arm 2 remains stable. Moreover, the present invention has a simple structure, is easy to manufacture, has low production cost, is easy to adjust, and has a long service life.

[0036] The positioning arc surface on the side wall of the adjusting seat 1 includes a first concave arc surface 4, a second concave arc surface 6, and a convex arc surface 5. The first concave arc surface 4, the convex arc surface 5, and the second concave arc surface 6 are sequentially and tangentially connected along the rotation direction of the adjusting arm 2 to form an integral structure. After the elastic element 3 enters the first concave arc surface 4 and the second concave arc surface 6, it respectively forms the limit for the maximum upward angle and the maximum downward angle of the adjusting arm 2. When the elastic element 3 is directly opposite the highest point of the convex arc surface 5, the adjusting arm 2 extends horizontally. This structure enables the adjusting arm 2 to swing and position within a large range, and limits the maximum upward angle and downward angle to prevent accidents caused by exceeding the rotation range.

[0037] The elastic element 3 includes a spring 7 and a constant force sleeve 8. One end of the spring 7 is fixedly positioned to the side wall of the other end of the adjusting arm 2. One end of the constant force sleeve 8 is provided with a roller 9 that can rotate. The roller 9 makes rolling contact with the positioning arc surface. The other end of the constant force sleeve 8 is provided with at least one of a plug post 24 and a plug sleeve 25. The plug post 24 is inserted into the inner side of the other end of the spring 7, and the plug sleeve 25 is sleeved on the outer side of the other end of the spring 7.

[0038] The other end of the spring 7 is positioned by inserting into the insertion post 24 or insertion sleeve 25 on the constant force sleeve 8, so that the constant force sleeve 8 and the other end of the spring 7 form a stable coaxial positioning structure. The spring 7 is also in rolling contact with the positioning arc surface through the roller 9, which makes it convenient to adjust the angle of the adjusting arm 2. The adjustment is convenient and labor-saving, and it will not wear out after long-term use.

[0039] The elastic element 3 also includes an adjusting screw 10 and a spring 7 positioning block. The adjusting screw 10 is rotatable in the circumferential direction and axially stopped on the adjusting arm 2. The adjusting screw 10 is movably screwed to the spring 7 positioning block, which is positioned to stop one end of the spring 7. By adjusting the position of the spring 7 positioning block within the adjusting arm 2 through the adjusting screw 10, the compression length of the spring 7 is changed, thereby changing the elastic force value of the spring 7 to adapt to the adjustment balance when installing electronic devices of different weights.

[0040] The spring 7 positioning block includes a spherical body 11 and a limiting protrusion 12. At least one limiting protrusion 12 is fixedly disposed on the outer surface of the spherical body 11 at intervals. The spherical body 11 is tightly abutted against one end surface of the spring 7. The diameter of the spherical body 11 is larger than the inner diameter of one end of the spring 7. The inner side of the adjusting arm 2 is provided with at least one concave groove. The limiting protrusion on the outer side of the spherical body 11 is inserted into the concave groove along the circumferential direction of the adjusting screw 10.

[0041] The spherical body 11 is inserted into one end of the spring 7 to achieve pressing and positioning of one end of the spring 7 body. The limiting protrusion 12 on its surface is engaged with the concave groove on the inner side of the adjusting arm 2 to prevent the spherical body 11 from rotating with the adjusting screw 10, thus ensuring effective adjustment. The positioning block of the spring 7 can also be other shapes, such as square, flower, polygon or cone, etc.

[0042] The elastic element 3 also includes a guide sleeve that matches the outer diameter of the spring 7. The guide sleeve is fixedly installed inside the adjusting arm 2, and the spring 7 is inserted into the guide sleeve to extend and retract. The guide sleeve limits and guides the elastic deformation direction of the spring 7, so that the spring 7 can only extend and retract elastically along its length direction, and cannot produce offset or deformation in other directions.

[0043] The adjusting arm 2 includes an arm body 13, a support plate 14, and a rotating head seat 15. The two ends of the arm body 13 and the support plate 14 are respectively hinged to the adjusting seat 1 and the rotating head seat 15. The adjusting seat 1, the arm body 13, the support plate 14, and the rotating head seat 15 form a parallelogram structure. The guide sleeve includes an upper fixing member 16, a lower fixing member 17, and a sliding pad 18. The upper fixing member 16 and the lower fixing member 17 are respectively fixedly installed on the inner side wall of the arm body 13. The sliding pad 18 and the upper fixing member 16 both form an arc-shaped cylindrical surface that matches the outer side of the spring 7 on the side facing the spring 7. The adjusting seat 1, the arm body 13, the support plate 14, and the rotating head seat 15 form a parallelogram structure to achieve up-and-down swing within a certain angle range. The lower fixing part 17 is installed on the arm body 13 to support the sliding pad 18. The sliding pad 18 and the upper fixing part 16 together form a cylindrical guide structure to guide the spring 7 and prevent it from deviating in the direction of deformation. The upper fixing part 16 and the sliding pad 18 are preferably made of plastic, which has a low coefficient of friction and a self-lubricating effect to prevent wear on the spring 7. The lower fixing part 17 can be made of metal, which has good support performance.

[0044] One end of the upper fixing member 16 has an upper stop plate 19 perpendicular to the extension and retraction direction of the spring 7, and one end of the lower fixing member 17 has a lower stop plate 20 perpendicular to the extension and retraction direction of the spring 7. The upper stop plate 19 has a first opening groove, and the lower stop plate 20 has a second opening groove. The upper stop plate 19 stops on the outside of one end of the spring 7, and the side wall of the lower stop plate 20 has a guide groove for the circumferential positioning of the spring 7 positioning block. The adjusting screw 10 is inserted into the first opening groove and the second opening groove. The upper stop plate 19 and the lower stop plate 20 form a shield for one end of the spring 7 to prevent dust from falling in. At the same time, the lower stop plate 20 plays a role in stopping and guiding the circumferential movement of the spring 7 positioning block, and is positioned with the adjusting screw 10 through the first opening groove and the second opening groove, thus achieving an integrated structure with the spring 7.

[0045] The rotating head base 15 is provided with an adjusting screw clearance hole 21, which is directly opposite to the head of the adjusting screw 10. The adjusting screw clearance hole 21 allows for the insertion of hardware tools used to operate the adjusting screw 10. The adjusting hardware tools can be inserted through the adjusting screw clearance hole 21 to adjust the adjusting screw 10, making adjustment convenient.

[0046] The arm body 13 is provided with a first limiting protrusion 22 and a second limiting protrusion 23 arranged at intervals along its length direction. The height of the first limiting protrusion 22 is higher than that of the second limiting protrusion 23, and the first limiting protrusion 22 is further away from the adjusting seat 1 than the second limiting protrusion 23. The first limiting protrusion 22 presses against the surface of the support plate 14 when the downward angle of the adjusting arm 2 is at its maximum, and the second limiting protrusion 23 presses against the surface of the support plate 14 when the upward angle of the adjusting arm 2 is at its maximum. When the downward angle of the adjusting arm 2 is at its maximum, the first limiting protrusion 22 located at the other end of the arm body 13 abuts against the surface of the support plate 14, thereby limiting the angle of the adjusting arm 2. When the adjusting arm 2 rotates upward to its maximum upward angle, the end of the support plate 14 is offset from the first limiting protrusion 22 and is abutted by the second limiting protrusion 23, thereby limiting the maximum upward angle. The above structure achieves the blocking and limiting of the angle range of the adjusting arm 2, preventing the elastic element 3 from disengaging from the positioning screen, so that the adjusting arm 2 can only swing up and down within a certain range, thereby improving the safety of the bracket.

Claims

1. An electronic device balance force control mechanism, characterized by: The adjusting seat (1), the adjusting arm (2) and the elastic member (3) are included, one end of the adjusting arm is hingedly arranged on the adjusting seat, the side wall of the adjusting seat is formed with a positioning arc surface, one end of the elastic member in the elastic extension direction is fixedly arranged on the adjusting arm, the other end of the elastic member in the elastic extension direction is always in close contact with the positioning arc surface on the side wall of the adjusting seat, the elastic member is always through the center of the positioning arc surface in the elastic extension direction with the rotation of the adjusting arm, the adjusting arm includes the arm body (13), the supporting plate (14) and the rotating head seat (15), the two ends of the arm body and the supporting plate are respectively hingedly connected with the adjusting seat and the rotating head seat, the adjusting seat, the arm body, the supporting plate and the rotating head seat form a parallelogram structure, the first limiting tab (22) and the second limiting tab (23) are arranged on the arm body along the length direction, the height of the first limiting tab is higher than that of the second limiting tab, and the first limiting tab is farther away from the adjusting seat than the second limiting tab, the first limiting tab is in close contact with the surface of the supporting plate when the lower angle of the adjusting arm is maximum, and the second limiting tab is in close contact with the surface of the supporting plate when the upper angle of the adjusting arm is maximum.

2. The electronic device counterbalancing force control mechanism of claim 1, wherein: The positioning arc surface on the side wall of the adjusting seat includes the first concave arc surface (4), the second concave arc surface (6) and the convex arc surface (5), the first concave arc surface, the convex arc surface and the second concave arc surface are sequentially tangent and connected to form an integrated structure along the rotation direction of the adjusting arm.

3. The electronic device counterbalancing force control mechanism according to claim 1 or 2, characterized in that: The elastic member includes the spring (7) and the constant force sleeve (8), one end of the spring is fixedly positioned with the side wall of the other end of the adjusting arm, one end of the constant force sleeve is rotatably provided with a roller (9), the roller is in rolling contact with the positioning arc surface, the other end of the constant force sleeve is provided with at least one of the insertion column (24) and the insertion sleeve (25), the insertion column is inserted into the inner side of the other end of the spring, and the insertion sleeve is sleeved on the outer side of the other end of the spring.

4. The electronic device counterbalancing force control mechanism of claim 3, wherein: The elastic member further includes the adjusting screw (10) and the spring positioning block, the adjusting screw is rotatable in the circumferential direction and is axially fixed on the adjusting arm, the adjusting screw is movably screwed with the spring positioning block, and the spring positioning block is fixedly positioned with one end of the spring.

5. The electronic device counterbalancing force control mechanism of claim 4, wherein: The spring positioning block includes the spherical body (11) and the limiting protrusion (12), at least one limiting protrusion is fixedly arranged on the outer side surface of the spherical body, the spherical body is in close contact with the surface of one end of the spring, the diameter of the spherical body is greater than the inner diameter of one end of the spring, the inner side of the adjusting arm is provided with at least one recessed clamping groove, and the limiting protrusion on the outer side of the spherical body is inserted into the recessed clamping groove in the circumferential direction of the adjusting screw.

6. The electronic device counterbalancing force control mechanism of claim 3, wherein: The elastic member further includes a guide sleeve matched with the outer diameter of the spring, the guide sleeve is fixedly arranged on the inner side of the adjusting arm, and the spring is movably inserted into the guide sleeve.

7. The electronic device counterbalancing force control mechanism of claim 6, wherein: The guide sleeve includes the upper fixing member (16), the lower fixing member (17) and the sliding pad (18), the upper fixing member and the lower fixing member are respectively fixedly arranged on the inner side wall of the arm body, and the sliding pad and the upper fixing member on the side of the spring form an arc column surface matched with the outer side of the spring.

8. The electronic device counterbalancing force control mechanism of claim 7, wherein: The upper fixed part is provided with an upper stopper (19) at one end, which is perpendicular to the spring expansion direction, and the lower fixed part is provided with a lower stopper (20) at one end, which is perpendicular to the spring expansion direction, the upper stopper is provided with a first opening slot, and the lower stopper is provided with a second opening slot, the upper stopper is stopped at the outer side of one end of the spring, the side wall of the lower stopper is provided with a guide sliding groove for the circumferential direction stop and positioning of the spring positioning block, and the adjusting screw is inserted into the first opening slot and the second opening slot.

9. The electronic device counterbalancing force control mechanism of claim 7, wherein: The rotating head seat is provided with an adjusting screw avoiding hole (21), the adjusting screw avoiding hole is arranged opposite to the head part of the adjusting screw, and the adjusting screw avoiding hole can be inserted by a hardware tool for operating the adjusting screw.

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