Panel corner stable adjusting mechanism of electronic equipment support

Abstract

The utility model discloses a panel corner stable adjusting mechanism of an electronic equipment support, a panel can be rotatably installed on a base, and the panel or the base is provided with a plurality of clamping grooves which are arranged at intervals along an arc-shaped path concentric with a panel rotating shaft. The base or the panel is provided with at least one clamping piece capable of sliding by a set distance in the radial direction of the base or the panel, the clamping piece slides in a reciprocating mode and can be inserted into or retreat from the clamping groove right opposite to the clamping piece, and the clamping piece positioning device can stop and position the clamping piece and the base or the panel so that the clamping piece can be kept in the locking state of being inserted into the clamping groove. In the panel rotation adjusting process, repeated screwing of screws is not needed, operation is convenient and labor-saving, the adjusted angle can be kept unchanged for a long time after the panel is adjusted, the angle cannot be changed even under the action of external force, and the dip angle of the panel does not need to be adjusted frequently.

Description

Technical Field

[0001] The utility model relates to a display bracket, in particular to a panel angle stabilization adjustment mechanism of an electronic equipment bracket. Background Art

[0002] The monitor stand is generally fixed with a panel to install the monitor. After the monitor is installed, it is sometimes not parallel to the horizontal plane and has a certain inclination angle. In this case, it is necessary to rotate the panel to adjust the angle of the monitor. Currently, the panel of the monitor stand is rotatably installed on the base of the monitor stand through a rivet or screw. In order to prevent the rotation angle from being too large, one or two round holes are eccentrically set on the base, and one or two arc holes are set on the panel. The screws are passed through the round holes and the arc holes to limit the rotation angle of the panel. When adjusting the angle of the panel of this structure, it is necessary to loosen the screws to adjust the panel inclination. After the adjustment is completed, it is necessary to tighten the screws. When rotating the screws, someone needs to hold the monitor with his hands. This adjustment structure is complicated and inconvenient to adjust. After the adjustment is completed, it relies entirely on friction to maintain the panel angle. After a period of time, the panel will rotate to a certain angle by itself under the action of the torque generated by gravity. Especially when used for the installation of heavy monitors, since the monitor is relatively heavy, the monitor must be adjusted with the help of others. After adjustment, the panel is also difficult to maintain the adjusted angle for a long time and needs to be readjusted frequently. After long-term use and repeated adjustment, the friction gasket is easily damaged, resulting in the inability to effectively position the adjusted angle of the panel. Parts need to be replaced, which brings many troubles to the use of the monitor stand. Utility Model Content

[0003] In order to overcome the above-mentioned defects, the utility model provides a panel angle stabilization adjustment mechanism for an electronic device bracket, which can quickly and easily adjust the panel angle. After adjustment, the panel angle can be kept stable and unchanged, and is not affected by the gravity of the display and external forces.

[0004] The utility model adopts a technical solution to solve the technical problem: a panel angle stabilization adjustment mechanism for an electronic equipment stand, comprising a panel, a base, a clamp and a clamp positioning device, wherein the panel can be rotatably mounted on the base;

[0005] The panel is provided with a plurality of slots spaced apart along an arc-shaped path, and the base is provided with at least one clip capable of sliding along the radial direction of the base for a set distance;

[0006] Alternatively, the base is provided with a plurality of slots spaced apart along an arc-shaped path, and the panel is provided with at least one clip capable of sliding along the radial direction of the panel for a set distance;

[0007] The arc-shaped path of the card slot arrangement is concentric with the rotating axis of the panel and the base. The card can slide back and forth to insert into or exit a card slot opposite it. The card positioning device can stop and position the card and the base or panel so that the card remains in a locked state inserted in the card slot.

[0008] As a further improvement of the present invention, the card positioning device includes an adjusting pin that is movably installed on a base or panel, and the adjusting pin can be stopped and positioned in a locked position and an unlocked position. The locked position and the unlocked position are two extreme positions of the forward and reverse movement of the adjusting pin. When the adjusting pin moves to the locked position, the adjusting pin can press tightly against the side wall of the card facing away from the card slot so that the card remains in the inserted position. When the adjusting pin moves to the unlocked position, the adjusting pin disengages from the obstruction of the side wall of the card facing away from the card slot so that the card can be withdrawn to the outside of the card slot.

[0009] As a further improvement of the present invention, the adjusting pin includes a pin shaft body, and an eccentric protrusion extending radially is fixedly provided on the outer side wall of the pin shaft body in the circumferential direction. The pin shaft body can be installed on a base or panel to rotate at a set angle. The base or panel is also provided with a fan-shaped cavity for accommodating the eccentric protrusion. When the eccentric protrusion rotates forward to the locked position with the pin shaft body, one side wall of the eccentric protrusion stops at one side wall of the fan-shaped cavity, and the end of the eccentric protrusion facing away from the pin shaft body is tightly pressed against the side wall of the clamping piece facing away from the slot. When the eccentric protrusion rotates reversely to the unlocking position with the pin shaft body, the other side wall of the eccentric protrusion stops at the other side wall of the fan-shaped cavity, and the end of the eccentric protrusion facing away from the pin shaft body is disengaged from the stop position of the side wall of the clamping piece facing away from the slot.

[0010] As a further improvement of the present invention, an elastic member accommodating groove is provided on the arc surface of the fan-shaped cavity, and a limiting elastic member is inserted into the elastic member accommodating groove. One end of the limiting elastic member can extend out of the elastic member accommodating groove and elastically press against the eccentric protrusion or the outer surface of the circumferential direction of the pin shaft body, so that the eccentric protrusion fits tightly to one side wall or the other side of the fan-shaped cavity and does not move.

[0011] As a further improvement of the present invention, the end of the eccentric protrusion facing away from the pin shaft body is an arc surface matching the arc surface of the fan-shaped cavity, and the two side surfaces of the eccentric protrusion in contact with one side wall and the other side wall of the fan-shaped cavity are planes tangent to the outer circumferential wall of the pin shaft body, and the arc surface of the eccentric protrusion and the side wall of the eccentric protrusion that can be flat against the other side wall of the fan-shaped cavity are transitionally connected through a tangent arc surface;

[0012] A contact plane with a cutout structure is provided on the outer circumferential wall of the pin shaft body;

[0013] When the eccentric protrusion is in the locked position, the elastic part presses against the plane of the other side wall of the fan-shaped cavity or the contact plane on the outer circumferential wall of the pin shaft body. When the eccentric protrusion is in the unlocked position, the limiting elastic part presses vertically against the arc surface of the eccentric protrusion or the outer circumferential wall of the pin shaft body.

[0014] As a further improvement of the present invention, an operating handle is coaxially fixed on the adjusting pin, and the operating handle is exposed outside the base.

[0015] As a further improvement of the present invention, the panel or base is symmetrically provided with two groups of slots arranged at intervals along a circular arc path, the base or panel is symmetrically provided with two clips, and the two clips are respectively arranged corresponding to the two groups of slots, and two eccentric protrusions are symmetrically fixed on the outer circumferential wall of the pin shaft body, and two fan-shaped cavities are symmetrically provided on the base or panel. The rotation of the pin shaft body can make the two eccentric protrusions reach the locked position or unlocked position synchronously.

[0016] As a further improvement of the present invention, the slot on the panel or base is a V-shaped slot, and the two side walls of the V-shaped slot along the rotation direction of the panel are inclined surfaces, and the card is a T-shaped structure with a width dimension at one end smaller than the width dimension at the other end, and one end of the card forms a card point of a triangular structure matching the slot, and the base or panel is provided with a card slide groove extending radially along its rotating axis, and the width dimension of the card slide groove toward one end is smaller than the width dimension of the end facing away from the card slot, and the end of the card slide groove facing away from the card slot is connected to the fan-shaped cavity, and the card can be slidably inserted into the card slide groove, and the other end of the card is stopped on the step surface between the two ends of the card slide groove, and a card reset elastic part is also provided in the card slide groove, and the card reset elastic part provides the card with an elastic retaining force to keep the card point at one end thereof extending out of the card slide groove and inserted into the card slot.

[0017] As a further improvement of the present invention, the structure in which the panel can be rotatably installed on the base is: the panel is provided with a countersunk through-hole structure, and the slot is formed on the inner side wall of the through-hole of the countersunk through-hole structure; the base can be rotatably inserted in the countersunk of the countersunk through-hole structure of the panel; a circular boss is also concentrically provided on the axial end face of the base; the circular boss can be rotatably inserted in the through-hole of the countersunk through-hole structure of the panel; a clamping plate, an upper positioning sleeve, a lower positioning sleeve and a connecting screw are also provided; the clamping plate and the circular boss of the base are fixedly connected by connecting screws; the upper positioning sleeve and the lower positioning sleeve are both sleeved on the outer side of the circumference of the circular boss of the base; the upper positioning sleeve is tightly clamped between the clamping plate and the panel, and the lower positioning sleeve is tightly clamped between the panel and the base.

[0018] As a further improvement of the present invention, a convex ring is formed on the end face of one axial end of the lower positioning sleeve, and the convex ring can be inserted into the through hole of the countersunk through hole structure of the panel. The side walls of the lower positioning sleeve and the convex ring thereon are provided with an avoidance notch for avoiding the card part, and the card part can be inserted into the card slot on the panel through the avoidance notch.

[0019] The beneficial effects of the utility model are as follows: a card slot and a card piece are provided between the panel and the base, and the card piece is engaged or disengaged with the card slot by sliding forward and backward, thereby realizing a stop connection or rotatable connection between the panel and the base. The utility model also provides an adjustment pin on the base or panel as a card piece positioning device, which can prevent the card piece from sliding back and forth to exit the card slot after the panel angle adjustment is completed, thereby ensuring that the angle of the panel after adjustment remains unchanged for a long time and is not affected by the torque generated by the weight of the display and the torque generated by external forces, and can be suitable for adjusting the installation angle of heavy displays or electronic equipment. The panel rotation adjustment process of the utility model does not require repeated screwing of screws, which is convenient and labor-saving. Moreover, by providing a card piece reset elastic member, the card piece is automatically inserted into the card slot for preliminary positioning after the panel angle adjustment is completed, realizing single-person operation. After the panel inclination adjustment is completed, the card piece is stopped and positioned again by the card piece positioning device, so that the card piece and the card slot maintain a stable plug-in state, and the adjusted angle can be maintained unchanged for a long time, and will not change even if subjected to external forces, and there is no need to frequently adjust the panel inclination. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional exploded view of the utility model;

[0021] Figure 2 This is a front view of the first type of adjustment pin used in the utility model;

[0022] Figure 3 When the first type of adjustment pin is used in the present invention and is in the unlocked state Figure 2 Middle AA section view;

[0023] Figure 4 When the first adjusting pin is in the locked state, Figure 2 Middle AA section view;

[0024] Figure 5 This is a front view of the second type of adjustment pin used in the present utility model;

[0025] Figure 6 When the second type of adjustment pin is used in the present invention and is in the unlocked state Figure 5 Middle BB section view;

[0026] Figure 7 When the second regulating pin is in the locked state, Figure 5 Middle BB section view;

[0027] Figure 8 This is a three-dimensional diagram of the panel of the present utility model;

[0028] Figure 9 This is a three-dimensional diagram of the card of the present utility model;

[0029] Figure 10 This is a three-dimensional diagram of the first structure of the new adjusting pin of the present invention;

[0030] Figure 11 This is a perspective view of the second structure of the new adjusting pin of the present invention;

[0031] Figure 12 This is a three-dimensional diagram of the base of the utility model;

[0032] Figure 13 This is a three-dimensional diagram of the lower positioning sleeve of the utility model;

[0033] Figure 14 It is a three-dimensional diagram of the utility model;

[0034] Figure 15 This is a diagram of the state where the viewing direction of the display on the panel of the present invention is parallel to the ground;

[0035] Figure 16 This is a diagram of the state where the viewing direction of the display on the panel of the present invention is perpendicular to the ground. DETAILED DESCRIPTION

[0036] Embodiment: A panel angle stabilization adjustment mechanism for an electronic device stand comprises a panel 1, a base 2, a clamp 3 and a clamp positioning device, wherein the panel 1 is rotatably mounted on the base 2;

[0037] The panel 1 is provided with a plurality of slots 4 arranged at intervals along an arc-shaped path, and the base 2 is provided with at least one clamping member 3 capable of sliding along the radial direction of the base 2 for a set distance;

[0038] Alternatively, the base 2 is provided with a plurality of slots 4 arranged at intervals along an arc-shaped path, and the panel 1 is provided with at least one clamping member 3 capable of sliding radially along the panel 1 for a set distance;

[0039] The arc-shaped path of the arrangement of the card slots 4 is concentric with the rotating axis of the panel 1 and the base 2. The card 3 can slide back and forth to insert into or exit a card slot 4 opposite it. The card positioning device can stop and position the card 3 and the base 2 or panel 1 so that the card 3 remains in a locked state inserted in the card slot 4.

[0040] The card member 3 slides on the base 2 or the panel 1, so that the card member 3 and the card slot 4 are plugged into and locked or disengaged and unlocked. At the same time, the card member 3 is positioned in the locked position and the unlocked position by the card member positioning device, so that the card member 3 can remain in the locked and unlocked positions. When the card member 3 is in the locked position, the panel 1 and the base 2 remain in a fixed positioning state, and the panel 1 cannot rotate. When the card member 3 is in the unlocked position, the panel 1 and the base 2 can rotate relative to each other to adjust the angle. When adjusting the angle of the panel 1 with the above structure, there is no need to repeatedly loosen and tighten the screws, and the adjustment is convenient. After the adjustment of the panel 1 is completed, the card member 3 is engaged and positioned with the card slot 4, so that the adjusted angular position of the panel 1 can be kept unchanged.

[0041] The card positioning device includes an adjusting pin 9 that is movably installed on the base 2 or the panel 1. The adjusting pin 9 can be stopped and positioned in a locked position and an unlocked position. The locked position and the unlocked position are two extreme positions of the forward and reverse movement of the adjusting pin 9. When the adjusting pin 9 moves to the locked position, the adjusting pin 9 can press tightly against the side wall of the card 3 facing away from the card slot 4 so that the card 3 remains in the inserted position. When the adjusting pin 9 moves to the unlocked position, the adjusting pin 9 disengages from the obstruction of the side wall of the card 3 facing away from the card slot 4 so that the card 3 can be withdrawn to the outside of the card slot 4.

[0042] By adjusting the pin 9 on the base 2 or the panel 1 to the locked position and the unlocked position, the pin 9 is pressed against the card 3 to prevent the card 3 from exiting the card slot 4, so that the panel 1 remains in a stable locked position. Alternatively, the pin 9 is released from the obstruction of the card 3, so that the card 3 can exit the card slot 4 under external force, so that the panel 1 can be rotated to adjust the angle.

[0043] In addition, the card positioning device can also be a pit set on the inner wall of the T-shaped channel and a convex bump set on the side wall of the card 3. When the convex bump slides to face different pits, the card 3 is fixedly positioned on the base 2 or panel 1; the card positioning device can also be a screw or a stud with a handle threadedly connected to the base 2 or panel 1. By turning the handle of the screw or stud, the screw or stud is pressed against the card 3, thereby realizing the positioning of the card 3 on the base 2 or panel 1. This is an equivalent replacement structure that can be easily thought of by technical personnel in this field based on this application, and it falls within the scope of protection of this application.

[0044] The adjusting pin 9 includes a pin shaft body 10, and an eccentric protrusion 11 extending radially thereof is fixedly provided on the outer side wall of the pin shaft body 10 in the circumferential direction. The pin shaft body 10 can be rotatably installed on the base 2 or the panel 1 at a set angle. The base 2 or the panel 1 is also provided with a fan-shaped cavity 12 for rotatably accommodating the eccentric protrusion 11. When the eccentric protrusion 11 rotates forward to the locked position with the pin shaft body 10, one side wall of the eccentric protrusion 11 stops at one side wall of the fan-shaped cavity 12, and the eccentric protrusion 11 is facing away from the pin shaft body 10 and is tightly pressed against the side wall of the lower clamping member 3 facing away from the slot 4. When the eccentric protrusion 11 rotates reversely to the unlocking position with the pin shaft body 10, the other side wall of the eccentric protrusion 11 stops at the other side wall of the fan-shaped cavity 12, and the eccentric protrusion 11 is facing away from the pin shaft body 10 and is disengaged from the stop position of the side wall of the clamping member 3 facing away from the slot 4.

[0045] The rotation of the pin shaft body 10 of the adjusting pin 9 can cause the eccentric protrusion 11 to rotate synchronously, thereby supporting or disengaging the card 3. In addition to using this rotating structure to prevent the card 3 from sliding or disengaging, the adjusting pin 9 can also be positioned on the base 2 or panel 1 for linear sliding, so that it is inserted between the card 3 and the bottom surface of the T-shaped channel to prevent the card 3 from exiting the slot 4, or disengage from the card 3 so that the card 3 can exit the slot 4. This is an equivalent replacement structure that a person skilled in the art can easily think of based on this application, and it falls within the scope of protection of this application.

[0046] The arc surface of the sector-shaped cavity 12 is provided with an elastic member receiving groove 13, and a limiting elastic member 14 is inserted into the elastic member receiving groove 13. One end of the limiting elastic member 14 can extend out of the elastic member receiving groove 13 and elastically press against the eccentric protrusion 11 or the outer surface of the circumferential direction of the pin shaft body 10, so that the eccentric protrusion 11 is tightly fitted to one side wall or the other side of the sector-shaped cavity 12 and does not move. The positioning of the adjustment pin 9 is achieved by elastically pressing against the eccentric protrusion 11 or the outer surface of the circumferential direction of the pin shaft body 10 by the limiting elastic member 14. The limiting elastic member 14 can be a compression spring or an elastomer. In addition to using the limiting elastic member 14 to position the adjustment pin 9, positioning can also be achieved by a protrusion and a pit matching structure, or friction, etc.

[0047] The end of the eccentric protrusion 11 facing away from the pin shaft body 10 is an arc surface that matches the arc surface of the fan-shaped cavity 12. The two side surfaces of the eccentric protrusion 11 that contact one side wall and the other side wall of the fan-shaped cavity 12 are planes tangent to the outer circumferential wall of the pin shaft body 10. The arc surface of the eccentric protrusion 11 and the side wall of the eccentric protrusion 11 that can be flat against the other side wall of the fan-shaped cavity 12 are transitionally connected through a tangent arc surface.

[0048] A contact plane 15 with a cutout structure is provided on the outer circumferential wall of the pin shaft body 10;

[0049] When the eccentric protrusion 11 is in the locked position, the elastic member presses against the eccentric protrusion 11 and can be flat against the plane of the other side wall of the fan-shaped cavity 12 or the contact plane 15 on the circumferential outer wall of the pin shaft body 10. When the eccentric protrusion 11 is in the unlocked position, the limiting elastic member 14 presses against the arc surface of the eccentric protrusion 11 or the circumferential outer wall of the pin shaft body 10 vertically.

[0050] The eccentric protrusion 11 rotates in the fan-shaped cavity 12. The fan-shaped cavity 12 can accommodate the eccentric protrusion 11 and also limit the rotation angle of the eccentric protrusion 11. When the limiting elastic member 14 is tightly against the plane of the eccentric protrusion 11 or the plane of the spool body, the card point 5 of the clamping member 3 is stably inserted in the card slot 4 to lock the panel 1. When the limiting elastic member 14 is tightly against the eccentric protrusion 11 or the arc surface of the pin shaft body 10, the clamping member 3 can elastically expand and contract.

[0051] An operating handle 16 is coaxially fixed to the adjusting pin 9 , and the operating handle 16 is exposed outside the base 2 .

[0052] The panel 1 or base 2 is symmetrically provided with two groups of slots 4 spaced apart along an arc-shaped path. The base 2 or panel 1 is symmetrically provided with two clips 3, and the two clips 3 are respectively arranged corresponding to the two groups of slots 4. The pin body 10 is symmetrically fixed with two eccentric protrusions 11 on the outer circumferential wall. The base 2 or panel 1 is symmetrically provided with two fan-shaped cavities 12. The pin body 10 rotates to enable the two eccentric protrusions 11 to synchronously reach the locked position or unlocked position. The two clips 3 are symmetrically inserted into the two groups of slots 4, which can improve the strength and stability of the locking of the panel 1. Of course, it can also be a single clip point 5 and a group of slots 4, or more clip points 5 and more groups of slots 4.

[0053] The card slot 4 on the panel 1 or base 2 is a V-shaped groove, and the two side walls of the V-groove along the rotation direction of the panel 1 are inclined surfaces, and the card part 3 is a T-shaped structure with a width dimension at one end smaller than the width dimension at the other end, and one end of the card part 3 forms a card point 5 of a triangular structure matching the card slot 4, and the base 2 or panel 1 is provided with a card slide groove extending radially along its rotation axis, and the width dimension of the card slide groove at one end toward the card slot 4 is smaller than the width dimension of the end facing away from the card slot 4, and the card slide groove is connected with the fan-shaped cavity 12 at the back of the card slot 4, and the card part 3 can be slidably inserted into the card slide groove, and the other end of the card slide groove is stopped on the step surface between the two ends of the card slide groove. A card reset elastic part 6 is also provided in the card slide groove, and the card reset elastic part 6 provides an elastic retaining force for the card 3 to keep the card point 5 at one end thereof extending out of the card slide groove and inserted into the card slot 4.

[0054] The card 3 and the card slide both form a T-shaped structure. The inner side of the end with a larger diameter of the card 3 slide is preferably also formed with a radially inwardly convex blocking structure. The card point 5 at one end of the card 3 can extend outward from one end of the card 3 slide of the T-shaped structure and be inserted into the card slot 4 opposite thereto. A groove structure 8 can be formed at the other end of the card 3. The card reset elastic part 6 can be a compression spring. One end of the compression spring is inserted into the groove structure at the other end of the card 3, and the other end of the compression spring is tightly against the radially inwardly convex blocking structure on the inner side wall of the card 3 slide.

[0055] When the adjustment pin 9 is in the locked position, its eccentric protrusion 11 rotates to a position where it is directly connected to the other end of the card slot. The high point of the eccentric protrusion 11 presses against the other end of the card 3, so that the card 3 cannot slide out of the card slot 4, thereby locking the panel 1 and the base 2.

[0056] When the adjusting pin 9 is in the unlocked position, its eccentric protrusion 11 rotates to a position misaligned with the other end of the card slot. At this time, the card 3 can slide along the card slot into the fan-shaped cavity 12, thereby allowing the card point 5 on the card 3 to disengage from the card slot 4. Since the card slot 4 is a V-shaped groove, the card point 5 on the card 3 is a triangular structure that matches it. When the adjusting pin 9 is in the unlocked position, the panel 1 is rotated with force, and the inclined surface of the V-shaped groove forces the card point 5 of the card 3 to exit the card slot 4, thereby completing the rotation of the panel 1.

[0057] After the external force applied to the panel 1 stops, the card 3 is reset under the action of the card reset elastic member 6, and the card point 5 on the card 3 is inserted into a card slot 4 opposite it. After the angle adjustment of the panel 1 is completed, the card 3 is automatically plugged into the card slot 4 under the action of the elastic reset member of the card 3, thereby realizing the preliminary positioning of the panel 1. Then, the adjusting pin 9 is rotated so that its eccentric protrusion 11 is rotated again to the position of tightening the other end of the card 3 to achieve the locking of the panel 1. After the panel 1 selects the angle, it is stably positioned on the base 2 and will not rotate even if subjected to external force, thereby realizing the stable maintenance of the angle of the panel 1.

[0058] The structure in which the panel 1 is rotatably mounted on the base 2 is as follows: a countersunk through-hole structure 17 is provided on the panel 1, and a slot 4 is formed on the inner side wall of the through-hole of the countersunk through-hole structure 17; the base 2 is rotatably inserted into the countersunk of the countersunk through-hole structure 17 of the panel 1; a circular boss 18 is concentrically provided on the axial end face of the base 2; the circular boss 18 is rotatably inserted into the through-hole of the countersunk through-hole structure 17 of the panel 1; a clamping plate 19, an upper positioning sleeve 20, a lower positioning sleeve 21 and a connecting screw 22 are also provided; the clamping plate 19 and the circular boss 18 of the base 2 are fixedly connected by connecting screws 22; the upper positioning sleeve 20 and the lower positioning sleeve 21 are both sleeved on the outer circumference of the circular boss 18 of the base 2; the upper positioning sleeve 20 is tightly clamped between the clamping plate 19 and the panel 1, and the lower positioning sleeve 21 is tightly clamped between the panel 1 and the base 2. The upper positioning sleeve 20 and the lower positioning sleeve 21 are preferably made of wear-resistant plastic parts, which increase friction and provide friction resistance when the panel 1 rotates, preventing the panel 1 from rotating quickly at the moment the card 3 and the card slot 4 are unlocked.

[0059] A raised ring 23 is formed on the end surface of one axial end of the lower positioning sleeve 21. The raised ring can be inserted into the through hole of the countersunk through hole structure 17 of the panel 1. The lower positioning sleeve 21 and the sidewall of the raised ring are provided with a relief notch 24 for accommodating the clamping member 3. The clamping member 3 can be inserted into the clamping slot 4 on the panel 1 through the relief notch 24. The raised ring on the lower positioning sleeve 21 separates the base 2 from the panel 1, preventing metal friction noise during rotation and achieving a silent effect.

Claims

1. A panel angle stabilization adjustment mechanism for an electronic equipment stand, characterized by: It comprises a panel (1), a base (2), a clamp (3) and a clamp positioning device, wherein the panel can be rotatably mounted on the base; The panel is provided with a plurality of slots (4) arranged at intervals along an arc-shaped path, and the base is provided with at least one clamping member capable of sliding along the radial direction of the base to a set distance; Alternatively, the base is provided with a plurality of slots spaced apart along an arc-shaped path, and the panel is provided with at least one clip capable of sliding along the radial direction of the panel for a set distance; The arc-shaped path of the card slot arrangement is concentric with the rotating axis of the panel and the base. The card can slide back and forth to insert into or exit a card slot opposite it. The card positioning device can stop and position the card and the base or panel so that the card remains in a locked state inserted in the card slot.

2. The panel angle stabilization adjustment mechanism for an electronic device stand according to claim 1, characterized in that: The card positioning device comprises an adjusting pin (9) which is movably mounted on a base or a panel, and the adjusting pin can be stopped and positioned at a locked position and an unlocked position, wherein the locked position and the unlocked position are two extreme positions of the forward and reverse movement of the adjusting pin. When the adjusting pin moves to the locked position, the adjusting pin can press against a side wall of the card facing away from the card slot so that the card remains in the inserted position unchanged. When the adjusting pin moves to the unlocked position, the adjusting pin is released from the obstruction of the side wall of the card facing away from the card slot so that the card can be withdrawn to the outside of the card slot.

3. The panel angle stabilization adjustment mechanism for an electronic device stand according to claim 2, characterized in that: The adjusting pin comprises a pin shaft body (10), an eccentric protrusion (11) extending radially thereof is fixedly provided on the outer side wall of the pin shaft body in the circumferential direction, the pin shaft body can be mounted on a base or a panel in a rotatable manner at a set angle, and the base or the panel is further provided with a fan-shaped cavity (12) for accommodating the eccentric protrusion in rotation, when the eccentric protrusion rotates to a locked position along with the pin shaft body in the forward direction, one side wall of the eccentric protrusion stops at one side wall of the fan-shaped cavity, and the end of the eccentric protrusion facing away from the pin shaft body is tightly pressed against the side wall of the clamping piece facing away from the slot, and when the eccentric protrusion rotates to an unlocked position along with the pin shaft body in the reverse direction, the other side wall of the eccentric protrusion stops at the other side wall of the fan-shaped cavity, and the end of the eccentric protrusion facing away from the pin shaft body is disengaged from the stopping position of the side wall of the clamping piece facing away from the slot.

4. The panel angle stabilization adjustment mechanism for an electronic device stand according to claim 3, characterized in that: An elastic member receiving groove (13) is provided on the arc surface of the sector-shaped cavity, and a limiting elastic member (14) is inserted into the elastic member receiving groove. One end of the limiting elastic member can extend out of the elastic member receiving groove and elastically press against the eccentric protrusion or the outer surface of the pin shaft body in the circumferential direction, so that the eccentric protrusion is tightly fitted to one side wall or the other side of the sector-shaped cavity and does not move.

5. The panel angle stabilization adjustment mechanism for an electronic device stand according to claim 4, characterized in that: The end of the eccentric protrusion facing away from the pin shaft body is an arc surface matching the arc surface of the fan-shaped cavity, and the two side surfaces of the eccentric protrusion contacting one side wall and the other side wall of the fan-shaped cavity are planes tangent to the outer circumferential wall of the pin shaft body, and the arc surface of the eccentric protrusion and the side wall of the eccentric protrusion that can be flat against the other side wall of the fan-shaped cavity are transitionally connected through a tangent arc surface; A contact plane (15) with a cut-off structure is provided on the outer circumferential wall of the pin shaft body; When the eccentric protrusion is in the locked position, the elastic part presses against the plane of the other side wall of the fan-shaped cavity or the contact plane on the outer circumferential wall of the pin shaft body. When the eccentric protrusion is in the unlocked position, the limiting elastic part presses vertically against the arc surface of the eccentric protrusion or the outer circumferential wall of the pin shaft body.

6. The panel angle stabilization adjustment mechanism for an electronic device stand according to claim 2 or 3, characterized in that: An operating handle (16) is coaxially fixed on the adjusting pin, and the operating handle is exposed outside the base.

7. The panel angle stabilization adjustment mechanism for an electronic device stand according to claim 3, characterized in that: The panel or base is symmetrically provided with two groups of slots arranged at intervals along a circular arc path, the base or panel is symmetrically provided with two clips, and the two clips are respectively arranged corresponding to the two groups of slots, and two eccentric protrusions are symmetrically fixed on the outer circumferential wall of the pin shaft body, and two fan-shaped cavities are symmetrically provided on the base or panel. The rotation of the pin shaft body can make the two eccentric protrusions reach the locked position or unlocked position synchronously.

8. The panel angle stabilization adjustment mechanism for an electronic device stand according to claim 3, characterized in that: The card slot on the panel or base is a V-shaped groove, and the two side walls of the V-shaped groove along the rotation direction of the panel are inclined surfaces, and the card is a T-shaped structure with a width dimension at one end smaller than the width dimension at the other end, and a card point (5) of a triangular structure matching the card slot is formed at one end of the card, and the base or panel is provided with a card slot extending radially along its rotation axis, and the width dimension of the card slot at one end toward the card slot is smaller than the width dimension of the end facing away from the card slot, and the end of the card slot facing away from the card slot is connected to the fan-shaped cavity, and the card can be slidably inserted into the card slot, and the other end of the card is stopped on the step surface between the two ends of the card slot, and a card reset elastic member (6) is also provided in the card slot, and the card reset elastic member provides the card with an elastic retaining force to keep the card point at one end thereof extending out of the card slot and inserted into the card slot.

9. The panel angle stabilization adjustment mechanism for an electronic device stand according to claim 1, characterized in that: The structure of the panel rotatably mounted on the base is as follows: the panel is provided with a countersunk through-hole structure (17), a slot is formed on the inner side wall of the through-hole of the countersunk through-hole structure, the base is rotatably inserted into the countersunk of the countersunk through-hole structure of the panel, and a circular boss (18) is concentrically provided on the axial end face of the base, the circular boss is rotatably inserted into the through-hole of the countersunk through-hole structure of the panel, and a clamping disk (19), an upper positioning sleeve (20), a lower positioning sleeve (21) and a connecting screw (22) are also provided. The clamping disk and the circular boss of the base are fixedly connected by connecting screws, and the upper positioning sleeve and the lower positioning sleeve are both sleeved on the outer side of the circumference of the circular boss of the base, the upper positioning sleeve is tightly clamped between the clamping disk and the panel, and the lower positioning sleeve is tightly clamped between the panel and the base.

10. The panel angle stabilization adjustment mechanism for an electronic device stand according to claim 9, characterized in that: A convex ring (23) is formed on the end surface of one axial end of the lower positioning sleeve, and the convex ring can be inserted into the through hole of the countersunk through hole structure of the panel. The side wall of the lower positioning sleeve and the convex ring thereon is provided with an avoidance notch (24) for avoiding the card member, and the card member can be inserted into the card slot on the panel through the avoidance notch.

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