A display stand

Abstract

The utility model relates to a kind of display support, including connector assembly, adjusting arm and base assembly, connector assembly shaft is positioned in the overhanging end of adjusting arm;Wherein:connector assembly includes cross axle seat, seat body and connecting plate, cross axle seat one end is positioned on the suspension seat of adjusting arm by first shaft, and other end is positioned with seat body by second shaft, connecting plate back rotatable riveting has a plug block, and plug block can be detachably inserted on seat body;First shaft and second shaft are perpendicular to each other, and one is horizontally arranged, and the horizontally arranged shaft is provided with damping mechanism and one-way bearing, and the load of the side of connecting plate is supported, and one-way bearing allows connecting plate and damping mechanism to rotate from bottom to top.The utility model has quick disassembly and pitch adjustment, and it is more relaxed.

Description

Technical Field

[0001] This utility model belongs to the field of monitor bracket technology, and specifically relates to a monitor bracket that uses a damping structure and a one-way bearing to improve the tilt adjustment of the monitor. Background Technology

[0002] Adjustable monitor stands have long been widely used in industrial and consumer applications, providing more user-friendly operation and viewing angles. Their key structure consists of an adjustment arm employing a parallel four-bar linkage, with spring force maintaining the suspension angle. In addition, the monitor can be quickly assembled and disassembled, and tilt and portrait adjustments are possible, making the design of the connector assembly at the suspension end particularly important. For example:

[0003] CN202020101207.9 discloses a horizontal damping shaft device, including a first base, a second base, and a horizontal shaft. The second base has a U-shaped structure, which can clamp the first base within it and form a rotatable whole through positioning by the horizontal shaft. The first base has a conical cavity, and a conical core with a shaft hole is nested within the conical cavity. The surface of the conical core contacts the surface of the conical cavity and generates rotational damping. The horizontal shaft passes through the shaft hole of the conical core, and a one-way bearing is embedded between the horizontal shaft and the shaft hole. This one-way bearing always prevents the load-bearing side of the first and second bases from falling downwards. This technology uses a one-way bearing to provide unidirectional load-bearing, resulting in a better experience in adjusting the elevation angle. Furthermore, the cooperation between the conical cavity and the conical core greatly increases the friction area, providing better load-bearing capacity. However, the position of the one-way bearing and the conical damping design are not entirely reasonable.

[0004] The object of this invention is to find a more reasonable technical solution. Summary of the Invention

[0005] The purpose of this invention is to design a monitor stand with a quick-assembly and disassembly structure for the connecting plate assembly and a one-way bearing to improve the tilt adjustment experience.

[0006] The present invention is implemented as follows: A monitor bracket includes a connector assembly for fixing the monitor, an adjusting arm, and a base assembly for positioning on a fixed object. The connector assembly is axially positioned at the suspended end of the adjusting arm. The connector assembly comprises a cross-shaped bearing, a base body, and a connecting plate. One end of the cross-shaped bearing is positioned on the suspension seat of the adjusting arm via a first shaft, and the other end is positioned on the base body via a second shaft. A plug is rotatably riveted to the back of the connecting plate, allowing it to be detachably inserted into the base body. The first and second shafts are perpendicular to each other, with one being horizontally positioned. A damping mechanism and a one-way bearing are provided on the horizontally positioned shaft to jointly support the load on one side of the connecting plate. The one-way bearing allows the connecting plate and the damping mechanism to rotate from bottom to top.

[0007] The base body and the insert block on the back of the connecting plate are provided with a slot and tenon that cooperate with each other. A horizontal groove is formed on the waist of the back of the base body corresponding to the slot, and a locking pin with a beveled locking tongue is provided in the horizontal groove. Under the action of the return spring, the beveled locking tongue always maintains the tendency to protrude on one side of the slot. The locking pin and the return spring are enclosed on the base body by a C-shaped sheet metal part, and are clamped on the cross shaft seat by the C-shaped sheet metal part and positioned by the second shaft. The tenon has a notch on one side of the beveled locking tongue. When the tenon is inserted into the notch, the beveled locking tongue can automatically spring into the notch and lock.

[0008] The tenon and slot are interlocked and positioned by the acute-angled bevels on both sides, and the two sides are inverted conical abutting each other, forming a self-tightening structure by gravity.

[0009] In a preferred embodiment, the second shaft is a horizontal shaft, and a shaft cavity is provided at one end of the cross shaft seat. A one-way bearing and a damping mechanism are provided in the shaft cavity. The damping mechanism includes a first cone portion installed on one side of the inner ring of the one-way bearing and a second cone portion installed on one side of the seat body. The first cone portion and the second cone portion cooperate with each other to generate rotational damping force, and the magnitude of the damping force can be adjusted by means of the second shaft passing through both.

[0010] The inner ring of the one-way bearing is fitted with a shaft core, which is nested and linked with the first cone. The second cone and the incline sheet metal part on the back of the seat are provided with a mutually cooperating anti-rotation snap. The second shaft passes through the incline sheet metal part of the seat, as well as the first cone, the second cone and the shaft core inside the incline sheet metal part, and the tightness is adjusted by bolts or nuts at the end of the second shaft.

[0011] The seat body has a second cone and a first cone on each side of the C-shaped sheet metal part, and the two first cones stand at both ends of the shaft core; the first cone and the second cone are machined into multi-level stepped cone surfaces that cooperate with each other on the contact surface.

[0012] The first cone is a convex cone and the second cone is a concave cone, and a disc spring that can spring the two apart is provided in the gap between the tops of the convex and concave cones; several axial grooves are provided on the stepped cone surface of the first cone.

[0013] In a preferred embodiment, the connecting plate is a square sheet metal part with a central circular recess and an arc groove concentric with the circular recess, the central angle of which is 180 degrees. A nut seat is slidably disposed in the arc groove. One end of the nut seat has a flange that can abut against the surface of the arc groove, and the other end is machined with an anti-rotation plane. The anti-rotation plane is used to lock the nut seat into the through hole of the insert block. A set bolt is screwed in from one side of the insert block, and an anti-rotation spring is also provided between the bolt head and the nut seat. Lubricating gaskets are provided on both sides of the connecting plate where the nut seat and the rivet of the riveted insert block pass through.

[0014] In a preferred embodiment, the adjusting arm includes an upper arm, a lower arm, a suspension seat, a support seat, and a preload spring. The upper arm, lower arm, suspension seat, and support seat are hinged to form a four-bar linkage, and the suspension angle and load-bearing capacity are maintained by the preload spring built into the upper arm and lower arm. The upper arm is made of profile material, and at least two sides are formed with dovetail grooves. The adjusting arm is equipped with a decorative sleeve, a front cover, and a rear cover. The inner surface of the decorative sleeve is formed with dovetail tenons corresponding to the positions of the dovetail grooves, which are inserted into the dovetail grooves. The front cover and the rear cover are respectively secured to the front and rear ends of the decorative sleeve. The lower end of the support seat is machined into a shaft segment and can be rotatably positioned directly on the base assembly or rotatably positioned at the suspended end of a fixed arm with a base assembly.

[0015] The fixed arm includes a support arm and a decorative cover made of profile. The two ends of the support arm are respectively locked with shaft seats. The suspended end is used for the shaft segment of the support seat to be inserted and positioned. The lower shaft seat is sleeved on the upward shaft protrusion of the base assembly, forming a positioning structure that can be rotated at both ends.

[0016] This utility model features a unique design, reasonable structure, convenient assembly and disassembly, and easy pitch adjustment. The insertion block and the base body are fitted with an acute-angled bevel and an inverted conical edge, which eliminates assembly gaps by utilizing the weight of the display itself, simplifying the structure while meeting the needs of quick assembly and disassembly. Furthermore, the use of a one-way bearing and a damping mechanism makes pitch adjustment easier and provides a better user experience. Attached Figure Description

[0017] The invention will be further described below with reference to specific figures:

[0018] Figure 1 Diagram of a monitor stand

[0019] Figure 2 Schematic diagram of a cross-section of a monitor stand

[0020] Figure 3 A schematic diagram of the vertical cross-section of the connector assembly.

[0021] Figure 4 Horizontal cross-sectional view of the connector assembly

[0022] Figure 5 Schematic diagram of the cross-section of the adjusting arm

[0023] Figure 6 Exploded view of monitor stand

[0024] Figure 7 A schematic diagram of the connector assembly (exploded or split).

[0025] Figure 8 Exploded view of the connector assembly (two diagrams)

[0026] in

[0027] 1—Connector assembly; 11—Cross shaft seat; 111—Shaft cavity; 12—Seat body; 121—Slot;

[0028] 122—Transverse groove; 123—Locking pin; 1231—Beveled tongue; 124—Reset spring; 125—U-shaped sheet metal part;

[0029] 13—Connecting plate; 131—Circular indentation; 132—Circular groove; 133—Nut seat; 1331—Flange;

[0030] 1332—Anti-rotation plane; 14—Insertion block; 141—Dovetail; 1411—Notch; 142—Through hole; 143—Acute-angled bevel;

[0031] 15—First shaft; 16—Second shaft; 161—Nut; 162—Bolt head; 163—Plastic handwheel;

[0032] 17—Set bolt; 171—Bolt head; 18—Abutment spring; 19—Lubricating washer;

[0033] 2—Adjusting arm; 21—Upper support arm; 211—Dovetail groove; 22—Lower support arm; 23—Suspension seat; 24—Support seat; 241—Shaft section; 25—Preload spring; 26—Decorative sleeve; 261—Dovetail tenon; 27—Front end cover;

[0034] 28—Rear end cover; 29—Lower cover; 291—Cable channel;

[0035] 3—Base assembly; 31—Shaft projection;

[0036] 4—Damping mechanism; 41—First cone; 42—Second cone; 43—Stepped cone surface; 431—Axial groove;

[0037] 44—Disc spring;

[0038] 5—One-way bearing; 51—Shaft core;

[0039] 6—Fixed arm; 61—Support arm; 62—Decorative cover; 63—Shaft seat;

[0040] 7—Rivet; Detailed Implementation

[0041] Reference Figures 1 to 8 The monitor stand includes a connector assembly 1 for fixing the monitor, an adjustment arm 2, and a base assembly 3 for positioning on a fixed object. The connector assembly 1 is axially positioned at the suspended end of the adjustment arm 2. These are the three main functional modules typically found on a monitor stand. Among them:

[0042] The base assembly 3 generally comes in two types: one is a counterweight, which can be placed directly on the surface of a support object such as a desktop; the other is a clamp, which can be clamped to the edge of a thin plate such as a desktop, or passed through a hole in the desktop and clamped. This example uses a base assembly with a clamp, and its structure is a conventional design.

[0043] Adjustable arm 2 includes upper support arm 21, lower support arm 22, suspension seat 23, support seat 24 and preload spring 25. The upper support arm 21, lower support arm 22, suspension seat 23 and support seat 24 are hinged to form a four-bar linkage mechanism, and the suspension angle and load-bearing capacity are maintained by the preload spring 25 built between the upper support arm 21 and the lower support arm 22. In this example, one end of the preload spring 25 is hung on the hinge point between the suspension seat 23 and the lower support arm 22, and the other end is hung on the hinge point between the support seat 24 and the upper support arm 21.

[0044] The upper support arm 21 is machined from a profile, and at least two sides are formed with dovetail grooves 211; the adjusting arm 2 is equipped with a decorative sleeve 26, a front cover 27, and a rear cover 28. The inner surface of the decorative sleeve 26 has dovetail tenons 261 formed corresponding to the positions of the dovetail grooves 211, which are inserted into the dovetail grooves 211. Figure 5 and Figure 6 The front cover 27 and the rear cover 28 are respectively secured to the front and rear ends of the decorative housing 26, forming a relatively complete adjustment arm body. Additionally, a lower cover 29 and a cable management groove 291 attached to the lower cover 29 can be configured below the decorative housing 26. The lower end of the support base 24 is machined into a shaft segment 241, which can be rotatably positioned directly on the base assembly 3, or rotatably positioned at the suspended end of a fixed arm 6 with the base assembly 3. The fixed arm 6 expands the adjustment range of the display to meet the needs of different scenarios, such as... Figure 2 and Figure 6 .

[0045] Therefore, the fixed arm 6 includes a support arm 61 made of profile and a decorative cover 62. The two ends of the support arm 61 are respectively locked with shaft seats 63. The suspended end is used for the shaft segment 241 of the support seat to be inserted and positioned. The lower shaft seat 63 is sleeved on the upward shaft protrusion 31 of the base assembly 3, forming a positioning structure that can be rotated at both ends, and the support arm 61 provides the main load-bearing function.

[0046] The connector assembly 1 includes a cross-shaped bearing 11, a seat 12, and a connecting plate 13. One end of the cross-shaped bearing 11 is positioned on the suspension seat 23 of the adjusting arm 2 via a first shaft 15, and the other end is positioned on the seat 12 via a second shaft 16. The first shaft 15 and the second shaft 16 are perpendicular to each other, and one of them is horizontally positioned. A damping mechanism 4 and a one-way bearing 5 are provided on the horizontally positioned shaft, which together support the load on one side of the connecting plate 13. The one-way bearing 5 allows the connecting plate 13 and the damping mechanism 4 to rotate from bottom to top. The horizontal axis is responsible for adjusting the tilt angle of the display, while the vertical axis can satisfy the left and right position adjustment.

[0047] As a preferred embodiment for pitch damping adjustment, the second shaft 16 is a horizontal shaft, and a shaft cavity 111 is provided at one end of the cross shaft seat 11. A one-way bearing 5 and a damping mechanism 4 are provided in the shaft cavity 111. The damping mechanism 4 includes a first cone 41 installed on one side of the inner ring of the one-way bearing 5 and a second cone 42 installed on one side of the seat body 12. The first cone 41 and the second cone 42 cooperate with each other to generate rotational damping force, and the magnitude of the damping force can be adjusted by means of the second shaft 16 passing through them.

[0048] More specifically, the inner ring of the one-way bearing 5 has a core 51 embedded in it. The core 51 and the first cone 41 are nested and connected in parallel, such as through a keyway structure. A locking mechanism is provided between the second cone 42 and the inverted sheet metal part 125 on the back of the seat, such as a groove on the outer end of the second cone 42 where the inverted sheet metal part 125 is directly engaged. The second shaft 16 passes through the inverted sheet metal part 125 of the seat, as well as the first cone 41, the second cone 42, and the core 51 inside the inverted sheet metal part 125, and its tightness is adjusted by a bolt or nut 161 at the end of the second shaft 16. Furthermore, the second shaft 16 has an internal hexagonal bolt head 162, and a plastic handwheel 163 is fitted over the bolt head 162, allowing for adjustment with tools or by hand. Figure 4 and Figure 8 .

[0049] Furthermore, a second cone 42 and a first cone 41 are respectively arranged on both sides of the C-shaped sheet metal part 125 of the seat, and the two first cones 41 are respectively located at both ends of the shaft core 51; and the contact surfaces of the first cone 41 and the second cone 42 are processed into multi-stage stepped cone surfaces 43 that cooperate with each other to increase the friction area.

[0050] In this structure, the first cone 41 is preferably a convex cone and the second cone 42 is a concave cone. A disc spring 44 is provided in the gap between the tops of the convex and concave cones to separate them. Several axial grooves 431 are provided on the stepped cone surface 43 of the first cone 41. The axial grooves 431 are used to exhaust air and avoid the negative pressure generated by the two cones being attracted together, which would affect the tightness adjustment.

[0051] As a preferred embodiment for quick assembly and disassembly, a plug 14 is rotatably riveted to the back of the connecting plate 13 by rivets 7, and can be detachably inserted into the base 12 by means of the plug 14; a slot 121 and a tenon 141 are provided between the base 12 and the plug 14 on the back of the connecting plate; a transverse groove 122 is formed on the waist of the back of the base 12 corresponding to the slot 121, and a locking pin 123 with a beveled locking tongue is provided in the transverse groove 122; the beveled locking tongue 123 is initially engaged by the locking pin 123 under the action of the return spring 124. The locking pin 123 and the return spring 124 are enclosed on the base 12 by a U-shaped sheet metal part 125 and clamped on the cross shaft seat 11 by the U-shaped sheet metal part 125 and positioned by the second shaft 16. The tenon 141 corresponds to the notch 1411 provided on one side of the inclined locking tongue 1231. During the insertion process, the tenon 141 can abut against the inclined locking tongue 1231 to force the locking pin 123 to retract. After being inserted into place, the inclined locking tongue 1231 can automatically spring into the notch 1411 and lock under the action of the return spring. By manually pressing the end of the locking pin 123 protruding from the side of the base 12 to retract it, the insert block 14 and the connecting plate 13 can be removed, realizing quick disassembly of the display.

[0052] In addition, the tenon 141 and the slot 121 are interlocked and positioned by the acute-angled bevels 143 on both sides, and the two sides are inverted conical abutting each other, forming a self-tightening structure by gravity, eliminating the fit gap and making it more stable in use.

[0053] Furthermore, the connecting plate 13 is a square sheet metal part with a circular recess 131 in the center, and has an arc groove 132 concentric with the circular recess 131. The central angle of the arc groove 132 is 180 degrees, which satisfies the horizontal screen and the vertical screen state when rotated to the left and right. A nut seat 133 is slidably arranged in the arc groove 132. One end of the nut seat 133 has a flange 1331 that can abut against the surface of the arc groove, and the other end is machined with an anti-rotation plane 1332. The anti-rotation plane 1332 is used to lock into the through hole 142 of the insert block. A set bolt 17 is screwed in from one side of the insert block 14, and an anti-rotation spring 18 is also provided between the bolt head 171 and the nut seat 133 to eliminate the gap. In addition, the connecting plate 13 is provided with lubricating gaskets 19 on both sides where the nut seat 133 and the rivet 7 pass through, so as to reduce the friction of rotation adjustment. The bolt head of the set bolt 17 is fitted with a plastic handwheel 163, which can also be operated by hand.

Claims

1. A monitor stand, comprising a connector assembly (1) for fixing a monitor, an adjusting arm (2), and a base assembly (3) for positioning on a fixed object, wherein the connector assembly (1) is axially positioned at the suspended end of the adjusting arm (2); characterized in that: The connector assembly (1) includes a cross shaft seat (11), a seat body (12) and a connecting plate (13). One end of the cross shaft seat (11) is positioned on the suspension seat (23) of the adjusting arm (2) via a first shaft (15), and the other end is positioned on the seat body (12) via a second shaft (16). A plug (14) is rotatably riveted to the back of the connecting plate (13), and can be detachably inserted into the seat body (12) by means of the plug (14). The first shaft (15) and the second shaft (16) are perpendicular to each other, and one of them is horizontally set. A damping mechanism (4) and a one-way bearing (5) are set on the horizontally set shaft, which together support the load on one side of the connecting plate (13). The one-way bearing (5) allows the connecting plate (13) and the damping mechanism (4) to rotate from bottom to top.

2. A monitor stand according to claim 1, characterized in that: A slot (121) and a tenon (141) are provided between the base (12) and the insert (14) on the back of the connecting plate. A transverse groove (122) is formed on the waist of the back of the base (12) corresponding to the slot (121), and a locking pin (123) with a beveled locking tongue is provided in the transverse groove (122). Under the action of the return spring (124), the beveled locking tongue (1231) of the locking pin (123) always maintains a tendency to protrude on one side of the slot (121). The locking pin (123) and the return spring (124) are enclosed on the seat (12) by a U-shaped sheet metal part (125) and clamped on the cross shaft seat (11) by the U-shaped sheet metal part (125) and positioned by the second shaft (16); the tenon (141) corresponds to the notch (1411) provided on one side of the inclined locking tongue (1231). When the tenon (141) is inserted into the notch (1411), the inclined locking tongue (1231) can automatically spring into the notch (1411) and lock.

3. A monitor stand according to claim 2, characterized in that: The tenon (141) and the slot (121) are interlocked and positioned by the acute angled bevels (143) on both sides, and the two sides are inverted conical abutting each other, forming a self-tightening structure by gravity.

4. A monitor stand according to claim 1 or 2, characterized in that: The second shaft (16) is a horizontal shaft, and a shaft cavity (111) is provided at one end of the cross shaft seat (11). A one-way bearing (5) and a damping mechanism (4) are provided in the shaft cavity (111). The damping mechanism (4) includes a first cone (41) installed on one side of the inner ring of the one-way bearing (5) and a second cone (42) installed on one side of the seat body (12). The first cone (41) and the second cone (42) cooperate with each other to generate rotational damping force, and the magnitude of the damping force can be adjusted by means of the second shaft (16) passing through them.

5. A monitor stand according to claim 4, characterized in that: A shaft core (51) is embedded in the inner ring of the one-way bearing (5). The shaft core (51) and the first cone (41) are nested together and linked. The second cone (42) and the incline sheet metal part (125) on the back of the seat are provided with a mutually cooperating anti-rotation snap. The second shaft (16) passes through the incline sheet metal part (125) of the seat, as well as the first cone (41), the second cone (42) and the shaft core (51) on the inner side of the incline sheet metal part (125), and the tightness is adjusted by the bolt or nut at the end of the second shaft (16).

6. A monitor stand according to claim 5, characterized in that: The seat body has a second cone (42) and a first cone (41) on each side of the C-shaped sheet metal part (125). The two first cones (41) are respectively located at both ends of the shaft core (51). The contact surfaces of the first cone (41) and the second cone (42) are processed into multi-level stepped cone surfaces (43) that cooperate with each other.

7. A monitor stand according to claim 6, characterized in that: The first cone (41) is a convex cone and the second cone (42) is a concave cone. A disc spring (44) is provided in the gap between the top of the convex cone and the concave cone to separate the two. Several axial grooves (431) are provided on the stepped cone surface (43) of the first cone (41).

8. A monitor stand according to claim 1 or 2, characterized in that: The connecting plate (13) is a square sheet metal part with a circular recess (131) in the center and an arc groove (132) concentric with the circular recess (131). The central angle of the arc groove (132) is 180 degrees. A nut seat (133) is slidably arranged in the arc groove (132). One end of the nut seat (133) has a flange (1331) that can abut against the surface of the arc groove, and the other end is machined with an anti-rotation plane (1332). The anti-rotation plane (1332) is used to lock in the through hole (142) of the insert. A set bolt (17) is screwed in from one side of the insert (14), and an anti-rotation spring (18) is also provided between the bolt head (171) and the nut seat (133). The connecting plate (13) is provided with lubricating gaskets (19) on both sides of the nut seat (133) and the rivet of the riveting insert (14).

9. A monitor stand according to claim 1, characterized in that: The adjusting arm (2) includes an upper support arm (21), a lower support arm (22), a suspension seat (23), a support seat (24), and a preload spring (25). The upper support arm (21), the lower support arm (22), the suspension seat (23), and the support seat (24) are hinged to form a four-bar linkage, and the suspension angle and load-bearing capacity are maintained by the preload spring (25) built between the upper support arm (21) and the lower support arm (22). The upper support arm (21) is made of profile material, and at least dovetail grooves (211) are formed on both sides. The adjusting arm (2) is equipped with a decorative sleeve. (26), front cover (27) and rear cover (28), the inner surface of the decorative shell (26) is formed with dovetail tenons (261) corresponding to the position of the dovetail groove (211), and the dovetail tenons (261) are inserted into the dovetail groove (211); the front cover (27) and rear cover (28) are respectively fixed to the front and rear ends of the decorative shell (26); the lower end of the support base (24) is processed into a shaft segment (241), and can be rotatably positioned directly on the base assembly (3) or rotatably positioned on the suspended end of a fixed arm (6) with a base assembly (3).

10. A monitor stand according to claim 9, characterized in that: The fixed arm (6) includes a support arm (61) made of profile and a decorative cover (62). The two ends of the support arm (61) are respectively locked with shaft seats (63). The suspended end is used for the shaft segment (241) of the support seat to be inserted and positioned. The lower shaft seat (63) is sleeved on the upward shaft protrusion (31) of the base assembly (3), forming a positioning structure that can be rotated at both ends.

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