Double-arm display support capable of changing display arrangement mode

Abstract

The invention relates to the technical field of displayer supports, and discloses a double-arm displayer support capable of changing the arrangement mode of displayers, the double-arm displayer support comprises a displayer body used for displaying information, and a mechanical arm used for adjusting the position of the displayer body is fixedly connected to the lower side of the center of the rear end of the displayer body. A supporting rod is rotationally connected to the center of an inner cavity of the end, away from the displayer body, of the mechanical arm, a connecting assembly for assisting stabilization is arranged at the bottom end of the supporting rod, and a stabilizing mechanism for improving stability of the mechanical arm and the displayer body is arranged in the center of the end, away from the supporting rod, of the connecting assembly. A clamping plate used for connecting the displayer body and an external supporting material is arranged at the end, away from the connecting assembly, of the stabilizing mechanism, and stability is improved through triangular embedding, elastic clamping and worm and gear self-locking of the connecting assembly and the stabilizing mechanism. The vibration sensing structure responds sensitively and is matched with the symmetrical guide grooves to balance stress, the clamping plates are stably connected to the outside, and the problem that a traditional support is insufficient in stability after being adjusted or vibrated is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of display brackets, in particular to a double-arm display bracket capable of changing the arrangement of displays. Background Art

[0002] A monitor stand is a computer accessory that is mainly used to support and fix the monitor to improve the user's comfort and work efficiency. With the development of technology, the types and functions of monitor stands are becoming increasingly diverse.

[0003] However, existing monitor stands can become loose between the legs and the stand after adjustment or when subjected to vibration, leading to instability. This looseness often causes the display to wobble slightly during daily use. This wobble can be significantly increased if the table is bumped, the floor vibrates due to movement, or if the stand isn't fully secured after adjustment. This can even lead to problems like screen angle shift or height misalignment. Therefore, we propose a dual-arm monitor stand that can adjust the display's alignment. Summary of the Invention

[0004] The purpose of the present invention is to provide a dual-arm display stand that can change the arrangement of displays, so as to solve the problem mentioned in the above background technology that the existing display stand is easy to loosen between the legs and the stand after adjustment or when subjected to vibration, thereby resulting in insufficient stability.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a dual-arm display stand capable of changing the arrangement of a display, comprising a display body for displaying information, a mechanical arm for adjusting the position of the display body fixedly connected to the lower side of the rear end center of the display body, the mechanical arm being rotatably connected to a support rod at the center of the inner cavity at one end away from the display body, a connecting assembly for assisting stability being provided at the bottom end of the support rod, a stabilizing mechanism for improving the stability of the mechanical arm and the display body being provided at the center of one end of the connecting assembly away from the support rod, and a splint for connecting the display body and an external supporting material being provided at the end of the stabilizing mechanism away from the connecting assembly.

[0006] Preferably, the connecting assembly includes a connecting upper plate, which is fixedly connected to the center of the bottom end of the support rod. The inner cavity of the bottom end of the connecting upper plate is provided with four groups of symmetrically arranged wedge-shaped grooves, and the wedge-shaped grooves are triangular in shape.

[0007] Preferably, a plurality of symmetrically arranged groups of limit springs are fixedly connected to one side of the inner cavity of the wedge-shaped groove, and a convex plate is fixedly connected to the end of the limit spring away from the wedge-shaped groove, and the outer surface of the convex plate away from the end of the limit spring is arc-shaped.

[0008] Preferably, the stabilizing mechanism includes a connecting lower ring, which is fixedly connected between the connecting upper plate and the splint, and the inner cavity of the connecting lower ring is provided with four groups of first guide grooves arranged circumferentially symmetrically, and the first guide grooves pass through the inner cavity of the connecting lower ring, and the first guide grooves are in the shape of a perfect circle from the inner wall of the connecting lower ring to the outer surface of the connecting lower ring.

[0009] Preferably, the inner cavity of the first guide groove is slidably connected to a sliding shaft, one end of the sliding shaft is fixedly connected to a cam, the center of the bottom end of the cam is fixedly connected to a coupling, the center of the outer surface of the coupling is slidably connected to a reset ring, and the outer surface of the bottom end of the coupling is fixedly connected to a first limiting column.

[0010] Preferably, the surface of the upper end of the reset ring is fixedly connected with four groups of circumferentially symmetrically arranged bosses for facilitating the rotation of the reset ring. The inner cavity of the reset ring is provided with a slide groove running through the inner cavity. The inner diameter of the slide groove is the same as the inner diameter of the coupling, and the inner diameter of the slide groove is slightly smaller than the inner diameter of the first limit column.

[0011] Preferably, the end of the sliding shaft away from the cam is fixedly connected to a fixing ring, the inner wall of the fixing ring is fixedly connected to several groups of symmetrically arranged contacts, one end of the several groups of symmetrically arranged contacts is fixedly connected to a first wire, and the end of the first wire away from the contact is fixedly connected to a connecting plate.

[0012] Preferably, a coil spring is fixedly connected to the center of the connecting plate near one end of the first wire, and a metal ball is fixedly connected to the end of the coil spring away from the connecting plate, and the metal ball and several groups of symmetrically arranged contacts are at the same height in the horizontal direction.

[0013] Preferably, the end of the connecting plate away from the first wire is fixedly connected to the second wire, the end of the second wire away from the connecting plate is fixedly connected to the driving ring, the inner cavity of the driving ring is rotatably connected to the rotating plate, and the end of the rotating plate away from the driving ring is fixedly connected to the worm.

[0014] Preferably, the inner cavity of the connecting lower ring is provided with four groups of symmetrically arranged second guide grooves running through its inner wall, the second guide grooves are higher than the first guide grooves in a horizontal position, the inner cavity of the second guide grooves is rotatably connected to a rotating shaft, one end of the rotating shaft is rotatably connected to a second limiting column, and the second limiting column is fixedly connected to the outer surface of the connecting lower ring, the outer surface at the center of the rotating shaft is fixedly connected to a reset spring, the outer surface of the reset spring is rotatably connected to a wedge-shaped column, the wedge-shaped column is triangular, and the front-view area of ​​the triangular wedge-shaped column is slightly smaller than the front-view area of ​​the wedge-shaped groove, the outer surface of the rotating shaft is fixedly connected to a worm gear, and the worm gear and worm are meshingly connected.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention brings multiple benefits through multi-dimensional optimized design: the rotating connection between the mechanical arm and the support rod realizes multi-angle adjustment of the display body in space, meeting diversified arrangement requirements; the wedge groove of the connecting component and the wedge column of the stabilizing mechanism are precisely fitted together through a triangular structure, and the elastic clamping of the limit spring and the convex plate forms a preliminary stable support; the self-locking characteristics of the worm gear transmission in the stabilizing mechanism and the automatic return function of the reset spring ensure that it will not loosen after locking and is easy to operate after unlocking, thereby improving the stability of the structure; the vibration sensing structure composed of metal balls and contacts converts mechanical vibrations into electrical signals through wires, and drives the locking action through the drive ring and the rotating plate to achieve sensitive response and precise control; the symmetrical guide groove design connecting the lower ring ensures that the forces on each component are balanced, and the splint is firmly connected to the external support. The overall structure not only solves the problem of insufficient stability of the traditional bracket after adjustment or when subjected to vibration, but also takes into account the adjustment flexibility and operation convenience, thereby extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a dual-arm monitor stand that can change the arrangement of monitors; Figure 2 It is a rear view of the overall structure of the present invention; Figure 3 This is a disassembled view of the overall structure of the present invention; Figure 4 This is a schematic diagram of the connection of the connection assembly of the present invention to the upper plate; Figure 5 This is a schematic diagram of the connection of the convex plate of the connection assembly of the present invention; Figure 6 This is a schematic diagram of the sliding shaft connection of the stabilizing mechanism of the present invention; Figure 7 This is a schematic diagram of the connection of the reset ring of the stabilizing mechanism of the present invention; Figure 8 This is a schematic diagram of the coupling connection of the stabilizing mechanism of the present invention; Figure 9 This is a schematic diagram of the second wire connection of the stabilizing mechanism of the present invention; Figure 10 This is a schematic diagram of the wedge-shaped column connection of the stabilizing mechanism of the present invention; Figure 11 This is a schematic diagram of the metal ball connection of the stabilizing mechanism of the present invention.

[0017] Figure: 1, display body; 2, mechanical arm; 3, support rod; 4, connecting assembly; 41, connecting upper plate; 42, wedge groove; 43, limit spring; 44, convex plate; 5, stabilizing mechanism; 51, connecting lower ring; 5101, first guide groove; 5102, slide shaft; 5103, cam; 5104, coupling; 5105, reset ring; 5106, first limit column; 5107, slide groove; 5108, fixed Ring; 5109, contact; 5110, first wire; 5111, connecting plate; 5112, coil spring; 5113, metal ball; 5114, second wire; 5115, drive ring; 5116, rotating plate; 5117, worm; 5201, second guide groove; 5202, rotating shaft; 5203, second limiting column; 5204, return spring; 5205, wedge column; 5206, worm gear; 6, splint. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figures 1-11 As shown, the present invention provides a technical solution: a double-arm display stand that can change the arrangement of the display, including a display body 1 for displaying information, a mechanical arm 2 for adjusting the position of the display body 1 fixedly connected to the lower side of the rear end center of the display body 1, the mechanical arm 2 is rotatably connected to the support rod 3 at the center of the inner cavity at one end away from the display body 1, the bottom end of the support rod 3 is provided with a connecting component 4 for assisting stability, the center of the connecting component 4 at one end away from the support rod 3 is provided with a stabilizing mechanism 5 for improving the stability of the mechanical arm 2 and the display body 1, and the end of the stabilizing mechanism 5 away from the connecting component 4 is provided with a splint 6 for connecting the display body 1 and an external supporting material.

[0020] Furthermore, the robotic arm 2 realizes multi-angle adjustment of the display body 1 in space through a rotating connection to meet the requirements of different arrangement methods. The support rod 3 serves as the core supporting component, rigidly connecting the robotic arm 2 and the connecting component 4 to ensure effective force transmission. The connecting component 4 cooperates with the stabilizing mechanism 5 to form a dual stable structure, which can not only limit displacement through mechanical interlocking, but also compensate for vibration through elastic elements. Finally, it is fixed to the external support through the splint 6. The overall structure realizes a complete functional chain, solves the problem of insufficient stability of traditional brackets after adjustment or when subjected to vibration, and allows the display to remain stable at any arrangement angle.

[0021] In the preferred technical solution of this embodiment, please refer to Figure 1-Figure 5 As shown, the connecting assembly 4 includes a connecting upper plate 41, which is fixedly connected to the center of the bottom end of the support rod 3. The inner cavity of the bottom end of the connecting upper plate 41 is provided with four groups of symmetrically arranged wedge-shaped grooves 42, and the wedge-shaped grooves 42 are triangular in shape.

[0022] Furthermore, the connecting plate 41 is fixedly connected to the support rod 3 to form a rigid whole, transferring the weight of the display body 1 and the robotic arm 2 to the stabilizing mechanism 5. The four groups of triangular wedge grooves 42 at its bottom serve as key connection points, forming a complementary geometric interlocking structure with the triangular shape of the wedge column 5205 in the stabilizing mechanism 5. The symmetrically distributed wedge grooves 42 can evenly distribute the load when the connecting plate 41 is under stress, avoiding structural deformation caused by local stress concentration. This physical connection achieved through shape matching can preliminarily limit the relative displacement between the connecting plate 41 and the stabilizing mechanism 5 without the need for additional locking components, providing basic support for subsequent stable locking. At the same time, the self-positioning characteristics of the triangular structure ensure precise alignment during connection, reducing installation and adjustment time.

[0023] In the preferred technical solution of this embodiment, please refer to Figure 5 As shown, several groups of symmetrically arranged limit springs 43 are fixedly connected to one side of the inner cavity of the wedge-shaped groove 42, and a convex plate 44 is fixedly connected to the end of the limit spring 43 away from the wedge-shaped groove 42. The outer surface of the convex plate 44 away from the end of the limit spring 43 is arc-shaped.

[0024] Furthermore, when the wedge-shaped column 5205 is inserted into the wedge-shaped groove 42, the protrusion 44 is squeezed by the wedge-shaped column 5205 and moves inward of the wedge-shaped groove 42. At this time, the limit spring 43 is compressed and generates a reverse elastic force. This elastic force acts on the surface of the wedge-shaped column 5205 through the protrusion 44, forming a lateral clamping force, which increases the friction between the wedge-shaped column 5205 and the wedge-shaped groove 42 and prevents them from loosening due to vibration or external forces during use of the bracket. The arc-shaped outer surface of the protrusion 44 converts the insertion force of the wedge-shaped column 5205 into a component force along the arc surface, reducing the resistance during insertion and allowing the wedge-shaped column 5205 to smoothly enter the wedge-shaped groove 42. The continuous elastic force of the limit spring 43 ensures the tightness of the connection. Even if slight wear occurs during long-term use, the compensating effect of the spring can still maintain sufficient clamping force, extending the service life of the component.

[0025] In the preferred technical solution of this embodiment, please refer to Figures 1-6 As shown, the stabilizing mechanism 5 includes a connecting lower ring 51, which is fixedly connected between the connecting upper plate 41 and the splint 6. The inner cavity of the connecting lower ring 51 is provided with four groups of first guide grooves 5101 that are circumferentially symmetrically arranged. The first guide grooves 5101 pass through the inner cavity of the connecting lower ring 51, and the first guide grooves 5101 are in the shape of a perfect circle from the inner wall of the connecting lower ring 51 to the outer surface of the connecting lower ring 51.

[0026] Furthermore, the connecting lower ring 51 serves as the bearing frame of the stabilizing mechanism 5, and the load of the connecting upper plate 41 is transferred to the splint 6 through a fixed connection, thereby achieving layer-by-layer dispersion of force. The four groups of perfect circular first guide grooves 5101 in its inner cavity provide a precise sliding trajectory for the sliding shaft 5102. The perfect circular structure ensures that the sliding shaft 5102 always maintains horizontal linear motion during movement, avoiding jamming or offset caused by shape deviation of the first guide groove 5101. The design of the first guide groove 5101 running through the inner wall of the connecting lower ring 51 to the outer surface allows both ends of the sliding shaft 5102 to be supported, thereby improving sliding stability. The symmetrically distributed first guide grooves 5101 correspond to the positions of the wedge grooves 42 connecting the upper plate 41, ensuring that the forces on each component are balanced. This structural design makes the movement of the adjustment components of the stabilizing mechanism 5 more controllable, laying the foundation for the precise execution of subsequent locking actions.

[0027] In the preferred technical solution of this embodiment, please refer to Figure 7 As shown, the inner cavity of the first guide groove 5101 is slidably connected to the sliding shaft 5102, one end of the sliding shaft 5102 is fixedly connected to the cam 5103, the center of the bottom end of the cam 5103 is fixedly connected to the coupling 5104, the center of the outer surface of the coupling 5104 is slidably connected to the reset ring 5105, and the outer surface of the bottom end of the coupling 5104 is fixedly connected to the first limiting column 5106.

[0028] Furthermore, the cam 5103 drives the sliding shaft 5102 to slide in the first guide groove 5101 under the action of the coupling 5104. When the reset ring 5105 rotates, the coupling 5104 drives the sliding shaft 5102 and the fixed ring 5108 at the other end of the sliding shaft 5102 and the worm 5117 on the upper side of the fixed ring 5108 away from the worm gear 5206, thereby unlocking the support of the wedge column 5205 in the inner cavity of the wedge groove 42. In this process, the first limiting column 5106 prevents the coupling 5104 from falling off when it moves in the inner cavity of the reset ring 5105 through size limitation.

[0029] In the preferred technical solution of this embodiment, please refer to Figure 6-Figure 8 As shown, the surface of the upper end of the reset ring 5105 is fixedly connected with four groups of circumferentially symmetrically arranged bosses for facilitating the rotation of the reset ring 5105. The inner cavity of the reset ring 5105 is provided with a slide groove 5107 running through the inner cavity. The inner diameter of the slide groove 5107 is the same as the inner diameter of the coupling 5104, and the inner diameter of the slide groove 5107 is slightly smaller than the inner diameter of the first limiting column 5106.

[0030] Furthermore, the boss provides a force point for the user, and the reset ring 5105 is driven to rotate by rotating the boss. At the same time, the coupling 5104 slides along the inner cavity of the slide groove 5107, and then acts on the cam 5103 to drive the sliding shaft 5102 to move toward the side of the reset ring 5105 along the first guide groove 5101, and finally the fixing ring 5108 drives the worm 5117 away from the worm wheel 5206, thereby unlocking the clamping effect of the wedge column 5205 and the wedge groove 42.

[0031] In the preferred technical solution of this embodiment, please refer to Figures 6-11 As shown, the end of the sliding shaft 5102 away from the cam 5103 is fixedly connected to a fixing ring 5108, the inner wall of the fixing ring 5108 is fixedly connected to several groups of symmetrically arranged contacts 5109, one end of the several groups of symmetrically arranged contacts 5109 is fixedly connected to a first wire 5110, and the end of the first wire 5110 away from the contact 5109 is fixedly connected to a connecting plate 5111.

[0032] Furthermore, when the display body 1 and bracket are subjected to vibration, the metal ball 5113 and the contact point 5109 on the inner wall of the fixing ring 5108 come into contact, forming a pathway. The first wire 5110 transmits the electrical signal from the contact point 5109 to the connecting plate 5111, converting mechanical action into an electrical signal. The symmetrical distribution of the contacts 5109 ensures that the metal ball 5113 maintains reliable contact even when swinging at different angles, reducing the risk of signal interruption. This structure converts the mechanical vibration state of the bracket into a detectable electrical signal, providing a sensory basis for the automatic triggering of the stabilization mechanism 5. Compared with purely mechanical triggering, it is more sensitive and has a faster response speed.

[0033] In the preferred technical solution of this embodiment, please refer to Figure 11 As shown, a coil spring 5112 is fixedly connected to the center of the connecting plate 5111 near one end of the first wire 5110, and a metal ball 5113 is fixedly connected to the end of the coil spring 5112 away from the connecting plate 5111, and the metal ball 5113 and several groups of symmetrically arranged contacts 5109 are at the same height in the horizontal direction.

[0034] Furthermore, the coil spring 5112 provides elastic support for the metal ball 5113. When the display vibrates, the metal ball 5113 deviates from the center position due to the vibration and contacts the contact 5109 in the fixed ring 5108. The elastic restoring force of the coil spring 5112 ensures that the metal ball 5113 returns to its original position and disengages from the contact 5109 after the vibration stops. The horizontal and equal height design of the metal ball 5113 and the contact 5109 ensures the reliability of the contact and avoids triggering delays caused by height deviation. This spring pendulum-type sensing structure does not require external power supply and can achieve signal triggering through mechanical vibration. It is both energy-saving and can quickly respond to vibration, providing a precise sensing mechanism for the dynamic triggering of the stabilization mechanism 5.

[0035] In the preferred technical solution of this embodiment, please refer to Figure 11 As shown, the end of the connecting plate 5111 away from the first wire 5110 is fixedly connected to the second wire 5114, the end of the second wire 5114 away from the connecting plate 5111 is fixedly connected to the driving ring 5115, the inner cavity of the driving ring 5115 is rotatably connected to the rotating plate 5116, and the end of the rotating plate 5116 away from the driving ring 5115 is fixedly connected to the worm 5117.

[0036] Furthermore, the second wire 5114 transmits the electrical signal to the drive ring 5115, which drives the rotating plate 5116 to rotate, thereby driving the worm 5117 to rotate. The rotational connection between the rotating plate 5116 and the drive ring 5115 allows the worm 5117 to fine-tune the angle during the transmission process, ensuring precise engagement with the worm wheel 5206. The rotation of the worm 5117 converts the mechanical power triggered by the electrical signal into a transmission action, thereby realizing the locking action of the stabilizing mechanism 5. This electromechanical transmission method not only retains the reliability of mechanical transmission, but also improves the flexibility of control through the transmission of electrical signals, making the triggering of the stabilizing mechanism 5 more precise and the locking action more stable.

[0037] In the preferred technical solution of this embodiment, please refer to Figures 6-10 As shown, the inner cavity of the connecting lower ring 51 is provided with four groups of symmetrically arranged second guide grooves 5201 running through its inner wall. The second guide grooves 5201 are higher than the first guide grooves 5101 in a horizontal position. The inner cavity of the second guide groove 5201 is rotatably connected to a rotating shaft 5202, one end of the rotating shaft 5202 is rotatably connected to a second limiting column 5203, and the second limiting column 5203 is fixedly connected to the outer surface of the connecting lower ring 51, and the outer surface of the rotating shaft 5202 at the center is fixedly connected to a return spring 5204, and the outer surface of the return spring 5204 is rotatably connected to a wedge column 5205, the wedge column 5205 is triangular in shape, and the front view area of ​​the triangular wedge column 5205 is slightly smaller than the front view area of ​​the wedge groove 42, and the outer surface of the rotating shaft 5202 is fixedly connected to a worm gear 5206, and the worm gear 5206 and the worm 5117 are meshingly connected.

[0038] Furthermore, the rotation of the worm 5117 drives the worm wheel 5206 to rotate, and the worm wheel 5206 drives the wedge column 5205 to rotate through the rotating shaft 5202, so that the wedge column 5205 is inserted into the wedge groove 42 connected to the upper plate 41, forming a mechanical lock. The second guide groove 5201 provides rotational support for the rotating shaft 5202, and the second limiting column 5203 limits the axial displacement of the rotating shaft 5202 to ensure transmission stability. The reset spring 5204 stores elastic potential energy when the wedge column 5205 rotates, and releases energy to reset the wedge column 5205 when unlocked. The triangular structure of the wedge column 5205 and the wedge groove 42 disperses pressure through surface contact, improving the locking strength, and the slightly smaller area of ​​the wedge column 5205 facilitates smooth insertion and disengagement. This worm wheel 5206 and worm 5117 transmission has a self-locking feature, which can prevent accidental loosening after locking, and the reset spring 5204 ensures that the components automatically return to their original position after unlocking, significantly improving the structural stability and operational convenience of the bracket.

[0039] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0040] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A dual-arm display stand capable of changing the arrangement of displays, characterized in that: The invention comprises a display body (1) for displaying information, wherein a mechanical arm (2) for adjusting the position of the display body (1) is fixedly connected to the lower side of the rear center of the display body (1), the mechanical arm (2) is rotatably connected to a support rod (3) at the center of the inner cavity at one end away from the display body (1), the bottom end of the support rod (3) is provided with a connecting component (4) for assisting stability, the center of the end of the connecting component (4) away from the support rod (3) is provided with a stabilizing mechanism (5) for improving the stability of the mechanical arm (2) and the display body (1), and the end of the stabilizing mechanism (5) away from the connecting component (4) is provided with a splint (6) for connecting the display body (1) and an external supporting material.

2. The dual-arm display stand capable of changing the display arrangement according to claim 1, characterized in that: The connecting assembly (4) comprises a connecting upper plate (41), wherein the connecting upper plate (41) is fixedly connected to the center of the bottom end of the support rod (3), and the inner cavity of the bottom end of the connecting upper plate (41) is provided with four groups of symmetrically arranged wedge-shaped grooves (42), wherein the wedge-shaped grooves (42) are triangular in shape.

3. The dual-arm display stand capable of changing the display arrangement according to claim 2, characterized in that: A plurality of symmetrically arranged groups of limit springs (43) are fixedly connected to one side of the inner cavity of the wedge-shaped groove (42), and a convex plate (44) is fixedly connected to one end of the limit spring (43) away from the wedge-shaped groove (42), and the outer surface of the convex plate (44) away from the end of the limit spring (43) is arc-shaped.

4. The dual-arm display stand capable of changing the display arrangement according to claim 1, characterized in that: The stabilizing mechanism (5) comprises a connecting lower ring (51), the connecting lower ring (51) being fixedly connected between the connecting upper plate (41) and the clamping plate (6), the inner cavity of the connecting lower ring (51) being provided with four groups of first guide grooves (5101) arranged symmetrically around the circumference, the first guide grooves (5101) running through the inner cavity of the connecting lower ring (51), and the first guide grooves (5101) being in a perfect circular shape from the inner wall of the connecting lower ring (51) to the outer surface of the connecting lower ring (51).

5. The dual-arm display stand capable of changing the display arrangement according to claim 4, characterized in that: The inner cavity of the first guide groove (5101) is slidably connected to a sliding shaft (5102), one end of the sliding shaft (5102) is fixedly connected to a cam (5103), the center of the bottom end of the cam (5103) is fixedly connected to a coupling (5104), the center of the outer surface of the coupling (5104) is slidably connected to a reset ring (5105), and the outer surface of the bottom end of the coupling (5104) is fixedly connected to a first limiting column (5106).

6. The dual-arm display stand capable of changing the display arrangement according to claim 5, characterized in that: The surface of the upper end of the reset ring (5105) is fixedly connected with four groups of bosses arranged symmetrically around the circumference for facilitating the rotation of the reset ring (5105). The inner cavity of the reset ring (5105) is provided with a slide groove (5107) running through the inner cavity. The inner diameter of the slide groove (5107) is the same as the inner diameter of the coupling (5104), and the inner diameter of the slide groove (5107) is slightly smaller than the inner diameter of the first limiting column (5106).

7. The dual-arm display stand capable of changing the display arrangement according to claim 5, characterized in that: One end of the sliding shaft (5102) away from the cam (5103) is fixedly connected to a fixing ring (5108), the inner wall of the fixing ring (5108) is fixedly connected to a plurality of symmetrically arranged contact points (5109), one end of the plurality of symmetrically arranged contact points (5109) is fixedly connected to a first wire (5110), and one end of the first wire (5110) away from the contact points (5109) is fixedly connected to a connecting plate (5111).

8. The dual-arm display stand capable of changing the display arrangement according to claim 7, characterized in that: A coil spring (5112) is fixedly connected to the center of one end of the connecting plate (5111) near the first wire (5110), and a metal ball (5113) is fixedly connected to the end of the coil spring (5112) away from the connecting plate (5111), and the metal ball (5113) and several groups of symmetrically arranged contacts (5109) are at the same height in the horizontal direction.

9. The dual-arm display stand capable of changing the display arrangement according to claim 8, characterized in that: The end of the connecting plate (5111) away from the first wire (5110) is fixedly connected to the second wire (5114), the end of the second wire (5114) away from the connecting plate (5111) is fixedly connected to the driving ring (5115), the inner cavity of the driving ring (5115) is rotatably connected to the rotating plate (5116), and the end of the rotating plate (5116) away from the driving ring (5115) is fixedly connected to the worm (5117).

10. The dual-arm display stand capable of changing the display arrangement according to claim 4, characterized in that: The inner cavity of the connecting lower ring (51) is provided with four groups of symmetrically arranged second guide grooves (5201) running through the inner wall thereof. The second guide grooves (5201) are higher than the first guide grooves (5101) in a horizontal position. The inner cavity of the second guide grooves (5201) is rotatably connected to a rotating shaft (5202). One end of the rotating shaft (5202) is rotatably connected to a second limiting column (5203). The second limiting column (5203) is fixedly connected to the outer surface of the connecting lower ring (51). The outer surface at the center of the shaft (5202) is fixedly connected to a return spring (5204), and the outer surface of the return spring (5204) is rotatably connected to a wedge-shaped column (5205). The wedge-shaped column (5205) is triangular in shape, and the front view area of ​​the triangular wedge-shaped column (5205) is slightly smaller than the front view area of ​​the wedge-shaped groove (42). The outer surface of the rotating shaft (5202) is fixedly connected to a worm gear (5206), and the worm gear (5206) and the worm (5117) are meshingly connected.

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