Connecting arm joint structure and display support

Abstract

The utility model discloses a connecting arm joint structure and a display support, the connecting arm joint structure comprises a first connecting piece and a second connecting piece, the second connecting piece is rotatably connected with the first connecting piece, the bottom end of the first connecting piece is provided with a movable limiting piece which is in sliding fit with the first connecting piece, and the bottom end of the second connecting piece is provided with a second limiting piece which is in sliding fit with the second connecting piece. The second connecting piece is provided with a limiting part, and when the second connecting piece rotates relative to the first connecting piece, the limiting part can be matched with the movable limiting piece in a limiting mode, so that the maximum rotation angle of the second connecting piece relative to the first connecting piece ranges from 360 degrees to 720 degrees. According to the connecting arm joint structure, the relative rotation angle between the supporting arm and the lifting arm can be within 360 degrees and 720 degrees, 360-degree all-directional angle adjustment of the displayer support can be achieved, angle limitation is conducted on rotation between the supporting arm and the lifting arm, and it is guaranteed that an internal wire cannot be twisted and damaged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of display support, concretely relates to a connecting arm joint structure and display support. BACKGROUND

[0002] The display support is usually composed of a fixed base, a support arm, a lifting arm and a head adjusting assembly. The fixed base is clamped or placed on a desktop, the support arm is fixed on the base, the lifting arm is connected with the support arm and used for supporting a display. In order to make the display be located at different positions in space, the connecting joints of each part should be allowed to rotate freely, especially the lifting arm and the support arm can rotate freely.

[0003] However, the supports, bases, support arms and lifting arms of the current e-sports displays on the market generally have LED lights. In order to be beautiful, the circuit board, wire and other electronic components are generally hidden inside the support. In order to ensure that the internal wire will not be twisted and damaged due to the rotation between the support arm and the lifting arm, a limiting structure is usually arranged between the support arm and the lifting arm, and the commonly used limiting structure makes the relative rotation angle between the support arm and the lifting arm cannot exceed 360°, which not only limits the use scene of the product, but also leads to poor user experience. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problems existing in the prior art, provides a connecting arm joint structure and display support, the connecting arm joint structure can make the relative rotation angle between the support arm and the lifting arm be between 360° and 720°

[0005] , which not only satisfies that the display support can realize 360° omnibearing angle adjustment, but also limits the rotation angle between the support arm and the lifting arm, so as to ensure that the internal wire will not be twisted and damaged.

[0006] In order to solve the above problems, the utility model adopts the following technical scheme:

[0007] A connecting arm joint structure, comprising a first connecting piece and a second connecting piece, the second connecting piece is rotationally connected with the first connecting piece, the bottom end of the first connecting piece is provided with a movable limiting piece in sliding cooperation with the first connecting piece, the second connecting piece has a limiting part, when the second connecting piece rotates relative to the first connecting piece, the limiting part can be limited in cooperation with the movable limiting piece, so that the maximum rotation angle of the second connecting piece relative to the first connecting piece is between 360° and 720°.

[0008] Preferably, the first connecting piece is provided with a groove, the second connecting piece is provided with a protrusion, the protrusion is rotationally cooperated with the groove. The movable limiting piece is arranged at the groove end and slides along the rotation direction of the second connecting piece and the first connecting piece.

[0009] Preferably, the first connecting piece is provided with an arc-shaped hole, a center of the arc-shaped hole corresponding to an axis of rotation of the second connecting piece and the first connecting piece, the second end of the movable connecting piece being above the arc-shaped hole, and a diameter of the second end being greater than a width of the arc-shaped hole.

[0010] Preferably, the first end of the movable connecting piece is below the arc-shaped hole, and a diameter of the first end is greater than the width of the arc-shaped hole.

[0011] Preferably, the movable limiting piece comprises a threaded column and first and second nuts mounted on two ends of the threaded column, a diameter of the threaded column being matched with the width of the arc-shaped hole, the first nut constituting a first end of the movable limiting piece, and the second nut constituting a second end of the movable limiting piece.

[0012] Preferably, a gasket is arranged between the first nut and the first connecting piece, and / or a gasket is arranged between the second nut and the first connecting piece.

[0013] Preferably, the limiting part is a protrusion arranged at a bottom of the second connecting piece.

[0014] Preferably, a middle part of the first connecting piece is provided with a first wire hole, a middle part of the second connecting piece is provided with a second wire hole, and the first wire hole and the second wire hole are communicated when the first connecting piece and the second connecting piece are connected.

[0015] Preferably, the first connecting piece and the second connecting piece are a base and a connecting arm respectively; or the first connecting piece and the second connecting piece are both connecting arms; or the first connecting piece and the second connecting piece are a connecting arm and a head assembly respectively.

[0016] The utility model also provides a display support, display support including above-mentioned connecting arm joint structure.

[0017] The connecting arm joint structure in the utility model can make the relative rotation angle between the supporting arm and the lifting arm between 360° and 720°, which not only satisfies that the display support can realize 360° omnibearing angle adjustment, but also limits the rotation between the supporting arm and the lifting arm, ensures that the internal wires will not be twisted and damaged. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the explosion map of the connecting arm joint structure in the embodiment 1 of the utility model;

[0019] Figure 2 is the section view of the connecting arm joint structure in the embodiment 1 of the utility model;

[0020] Figure 3 is the structure schematic diagram of the lifting arm and support arm of the display support in the embodiment 2 of the utility model in parallel position;

[0021] Figure 4 is the structure schematic diagram of the lifting arm and support arm of the display support in the embodiment 2 of the utility model in parallel position; Figure 3 is the section view along the bottom of the first rotating piece in the embodiment 2 of the utility model;

[0022] Figure 5 is the structure schematic diagram of the lifting arm and support arm of the display support in the embodiment 2 of the utility model in parallel position;

[0023] Figure 6 is the section view along the bottom of the first rotating piece in the embodiment 2 of the utility model; Figure 5

[0024] is the structure schematic diagram of the lifting arm and support arm of the display support in the embodiment 2 of the utility model in parallel position; Figure 7

[0025] is the section view along the bottom of the first rotating piece in the embodiment 2 of the utility model; Figure 8 Figure 7 is the structure schematic diagram of the display support in the embodiment 2 of the utility model.

[0026] Figure 9 In the drawing: 100-first connecting piece, 110-groove, 120-arc-shaped hole, 130-first wiring hole, 200-second connecting piece, 210-protrusion, 220-limiting part, 230-second wiring hole, 300-movable limiting piece, 310-threaded column, 320-first nut, 330-second nut, 400-support arm, 500-lifting arm, 600-base, 700-head assembly. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0029] ​In the description of the utility model, it is necessary to explain that the terms such as " upper " indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, and it is only for the convenience and simplification of description, and it is not indicated or implied that the indicated device or element must be provided with a particular orientation, constructed and operated in a particular orientation, so it can not be understood as the limitation of the utility model.

[0030] In the description of the utility model, the terms " first " and " second " are only for the purpose of description, and can not be understood as indicating or implying relative importance.

[0031] In the description of the utility model, it is necessary to explain that, unless otherwise expressly provided and limited, the terms " connection ", " setting ", " installation " and " fixed " should be understood broadly, for example, it can be fixedly connected or detachably connected, or integrally connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0032] The utility model provides a kind of connecting arm joint structure, including first connecting piece and second connecting piece, the second connecting piece is rotatably connected with the first connecting piece, the bottom end of the first connecting piece is equipped with the movable limit piece of sliding cooperation with first connecting piece, the second connecting piece has limit portion, when the second connecting piece rotates relative to the first connecting piece, the limit portion can be limited with movable limit piece cooperation, to make the maximum rotation angle of the second connecting piece relative to the first connecting piece between 360 ° and 720 °.

[0033] The utility model also provides a kind of display support, the display support includes the connecting arm joint structure described above.

[0034] Example 1

[0035] As Figure 1 、 2 As shown in the utility model, it is necessary to explain that the terms such as " upper " indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, and it is only for the convenience and simplification of description, and it is not indicated or implied that the indicated device or element must be provided with a particular orientation, constructed and operated in a particular orientation, so it can not be understood as the limitation of the utility model. A kind of connecting arm joint structure is disclosed, for display support. It includes first connecting piece 100 and second connecting piece 200, second connecting piece 200 is rotatably connected with the first connecting piece 100, the bottom end of the first connecting piece 100 is equipped with the movable limit piece 300 of sliding cooperation with first connecting piece 100, second connecting piece 200 has limit portion 220, when second connecting piece 200 rotates relative to the first connecting piece 100, it can rotate first angle, when second connecting piece 200 rotates first angle, it will be limited with movable limit piece 300 cooperation, to drive movable limit piece 300 jointly relative to the first connecting piece 100 rotation second angle, the maximum rotation angle (the sum of first angle and second angle) of second connecting piece 200 relative to the first connecting piece 100 is between 360 ° and 720 °.

[0036] Specifically, the second connecting piece 200 can be rotated 180°-360° relative to the first connecting piece 100 in a first direction and a second direction respectively. The first direction and the second direction are opposite.

[0037] As shown in Figure 1 , the top of the first connecting piece 100 is provided with an upward concave groove 110, and the bottom of the second connecting piece 200 is provided with an annular protrusion 210. The second connecting piece 200 is connected to the first connecting piece 100 by inserting the protrusion 210 into the concave groove 110. The movable limiting piece 300 is arranged at the end of the concave groove 110 and slides along the rotation direction of the second connecting piece 200 and the first connecting piece 100.

[0038] As shown in Figure 1 , specifically, the first connecting piece 100 is provided with an arc-shaped hole 120, and the center of the arc-shaped hole 120 corresponds to the rotation axis of the second connecting piece 200 and the first connecting piece 100. The movable connecting piece includes a threaded column 310 and a first nut 320 and a second nut 330 mounted on both ends of the threaded column 310. The diameter of the threaded column 310 is matched with the width of the arc-shaped hole 120, so that it can be inserted into the arc-shaped hole 120. The first nut 320 constitutes the first end of the movable limiting piece 300, and the second nut 330 constitutes the second end of the movable limiting piece 300. The second end of the movable limiting piece 300 is located above the arc-shaped hole 120, and the diameter of the second end is greater than the width of the arc-shaped hole 120.

[0039] Specifically, during installation, first insert the threaded column 310 into the arc-shaped hole 120, then threadedly connect the second nut 330 with the threaded column 310 from above the arc-shaped hole 120, and threadedly connect the first nut 320 with the threaded column 310 from below the arc-shaped hole 120. The installed movable connecting piece can slide along the arc-shaped hole 120 under the action of the limiting part 220.

[0040] Further, a gasket is arranged between the first nut 320 and the first connecting piece 100, and a gasket is arranged between the second nut 330 and the first connecting piece 100.

[0041] As shown in Figure 1 , 2As shown, in this embodiment, the limiting part 220 is a protrusion provided at the bottom of the second connector 200. The arc-shaped hole 120 is provided on the plane at the bottom of the groove 110 of the first connector 100. The protrusion 210 of the second connector 200 is inserted into the groove 110, so that the protrusion at the bottom of the second connector 200 and the second end of the movable limiting member 300 are located in the same plane, and the protrusion at the bottom of the second connector 200 and the second end of the movable limiting member 300 are located on the same circumference. This ensures that when the second connector 200 rotates relative to the first connector 100, the protrusion at the bottom of the second connector 200 will contact the second end of the movable limiting member 300, thereby driving the movable limiting member 300 to slide along the arc-shaped hole 120.

[0042] like Figure 1 As shown, the first connector 100 has a first wiring hole 130 in its middle, and the second connector 200 has a second wiring hole 230 in its middle. When the first connector 100 and the second connector 200 are connected, the first wiring hole 130 and the second wiring hole 230 are connected. The first wiring hole 130 and the second wiring hole 230 are used to arrange wires and internal electronic components. The center of the first wiring hole 130 is the center of the arc-shaped hole 120, which is located outside the first wiring hole 130.

[0043] In this embodiment, the first connector 100 and the second connector 200 are used to connect the support arm 400 and the lifting arm 500 of the monitor bracket. The first connector 100 is located at the top of the support arm 400, and the second connector 200 is located at the bottom of the lifting arm 500. The support arm 400 and the lifting arm 500 are rotatably connected via the first connector 100 and the second connector 200, thereby allowing the support arm 400 and the lifting arm 500 to rotate within a range of 360° and 720°.

[0044] Furthermore, the bottom of the support arm 400 is rotatably connected to the base 600, and the top of the lifting arm 500 is rotatably connected to the head assembly 700. The first connector 100 and the second connector 200 can be the base 600 and the support arm 400, the support arm 400 and the lifting arm 500, or the lifting arm 500 and the head assembly 700, respectively. That is, the connecting arm joint structure of this embodiment can be used between the head assembly 700 and the lifting arm 500, between the lifting arm 500 and the support arm 400, and between the support arm 400 and the base 600.

[0045] The base 600 is used to fix the monitor stand to the support frame, and the head assembly 700 is used to connect to the monitor.

[0046] The motion process of the connecting arm joint structure in this embodiment is as follows:

[0047] likeFigure 3 、 4 As shown in FIG. 6, when the lifting arm 500 is parallel to the support arm 400, the limiting part 220 does not contact the second end of the movable limiting part 300, and the position of the bottom bump of the second connecting part 200 is symmetrical to the center of the arc-shaped hole 120 along the center of the first walking hole 130.

[0048] As shown in FIG. 7, when the second connecting part 200 rotates relative to the first connecting part 100 towards the first direction, after the second connecting part 200 rotates by a second angle, the bottom bump of the second connecting part 200 contacts the second end of the movable limiting part 300, and drives the movable limiting part 300 to rotate by a third angle relative to the first connecting part 100 along the arc-shaped hole 120. The movable limiting part 300 reaches one end of the arc-shaped hole 120, and the second connecting part 200 reaches the rotation limit along the first direction. Figure 5 、 6 As shown in FIG. 8, when the second connecting part 200 rotates relative to the first connecting part 100 towards the second direction, after the second connecting part 200 rotates by a fourth angle, the bottom bump of the second connecting part 200 contacts the second end of the movable limiting part 300, and drives the movable limiting part 300 to rotate by a fifth angle relative to the first connecting part 100 along the arc-shaped hole 120. The movable limiting part 300 reaches the other end of the arc-shaped hole 120, and the second connecting part 200 reaches the rotation limit along the second direction.

[0049] As shown in FIG. 9, when the second connecting part 200 rotates relative to the first connecting part 100 towards the second direction, after the second connecting part 200 rotates by a fourth angle, the bottom bump of the second connecting part 200 contacts the second end of the movable limiting part 300, and drives the movable limiting part 300 to rotate by a fifth angle relative to the first connecting part 100 along the arc-shaped hole 120. The movable limiting part 300 reaches the other end of the arc-shaped hole 120, and the second connecting part 200 reaches the rotation limit along the second direction. Figure 7 、 8 As shown in FIG. 9, when the second connecting part 200 rotates relative to the first connecting part 100 towards the second direction, after the second connecting part 200 rotates by a fourth angle, the bottom bump of the second connecting part 200 contacts the second end of the movable limiting part 300, and drives the movable limiting part 300 to rotate by a fifth angle relative to the first connecting part 100 along the arc-shaped hole 120. The movable limiting part 300 reaches the other end of the arc-shaped hole 120, and the second connecting part 200 reaches the rotation limit along the second direction.

[0050] The sum of the second angle and the third angle is in the range of 180° to 360°, and the sum of the fourth angle and the fifth angle is in the range of 180° to 360°, so as to ensure that the rotation angle of the second connecting part 200 relative to the first connecting part 100 is in the range of 360°-720°. Specifically, the rotation angle of the second connecting part 200 relative to the first connecting part 100 can be controlled by setting the angle of the central angle of the arc-shaped hole 120. The minimum central angle of the arc-shaped hole 120 should be such that when the second rotating part rotates relative to the first rotating part along the first direction or the second direction, the rotation limit angle of the second rotating part exceeds 180°. The maximum central angle of the arc-shaped hole 120 should be such that when the second rotating part rotates relative to the first rotating part along the first direction or the second direction, the rotation limit angle of the second rotating part does not exceed 360°.

[0051] The connecting arm joint structure in the embodiment can make the relative rotation angle between the support arm 400 and the lifting arm 500 between 360° and 720°, which not only meets the requirement that the display support can realize 360° omnibearing angle adjustment, but also limits the rotation angle between the support arm 400 and the lifting arm 500, so as to ensure that the internal wires will not be twisted and damaged. In addition, the connecting arm joint structure between the support arm 400 and the lifting arm 500 has few parts, and only the cooperation of the first connecting piece 100 and the second connecting piece 200 can realize the above-mentioned angle range limitation, which will not cause the joint of the display support to shake due to the cumulative gap and error of multiple parts, thereby improving the stability of the display support and further improving the user experience.

[0052] In addition, the rotation angle range of the second rotating piece of the connecting arm joint structure in the embodiment relative to the first rotating piece along the single rotation direction is between 180° and 360°, which can ensure that the internal wires will not be twisted more than one turn, thereby further improving the service life of the wires.

[0053] Embodiment 2

[0054] As shown in Figure 9 , the embodiment discloses a display support, which comprises the connecting arm joint structure in embodiment 1.

[0055] As shown in Figure 9 , specifically, the display support further comprises a lifting arm 500, a support arm 400, a base 600 and a head assembly 700. The base 600 is used to fix the display support on a support frame, and the head assembly 700 is used to be connected with a display.

[0056] The bottom of the support arm 400 is rotatably connected with the base 600, and the top of the lifting arm 500 is rotatably connected with the head assembly 700. The connecting arm joint structure in embodiment 1 is adopted between the head assembly 700 and the lifting arm 500, between the lifting arm 500 and the support arm 400, and between the support arm 400 and the base 600, so as to ensure the rotation flexibility between the connecting pieces and also ensure that the internal wires will not be twisted and damaged with the rotation of the connecting pieces.

[0057] Further, the connecting arm of the display support can also adopt three, four or even more structures, so as to further improve the degree of freedom of the display support, and the connecting arm joint structure in embodiment 1 is adopted between two adjacent connecting arms.

[0058] The connecting arm joint structure is connected between the various connecting pieces of the display support in the embodiment, the rotating angle of the various connecting pieces is limited between 360° and 720°, not only the high flexibility between the connecting pieces is ensured, the user experience is improved, but also the rotation between the connecting pieces is angle-limited, the internal wire is prevented from being twisted and damaged, and the service life of the wire is improved.

[0059] It can be understood that the above embodiments are only exemplary embodiments for illustrating the principles of the present application, and the present application is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present application, and these modifications and improvements are also considered as the protection scope of the present application.

Claims

1. A connecting arm joint structure, characterized in that, The first connecting piece (100) and the second connecting piece (200) are provided, The second connecting piece (200) is rotationally connected with the first connecting piece (100), The bottom end of the first connecting piece (100) is provided with a movable limiting piece (300) which is in sliding fit with the first connecting piece (100), The second connecting piece (200) is provided with a limiting part (220), when the second connecting piece (200) rotates relative to the first connecting piece (100), the limiting part (220) can be in limiting fit with the movable limiting piece (300), so that the maximum rotation angle of the second connecting piece (200) relative to the first connecting piece (100) is between 360° and 720°.

2. The connecting arm joint structure according to claim 1, characterized by The first connecting piece (100) is provided with a groove (110), the second connecting piece (200) is provided with a protrusion (210), the protrusion (210) is in rotational fit with the groove (110), and the movable limiting piece (300) is arranged at the end of the groove (110) and slides along the rotation direction of the second connecting piece (200) and the first connecting piece (100).

3. The connecting arm joint structure according to claim 2, characterized by The first connecting piece (100) is provided with an arc-shaped hole (120), and the center of the arc-shaped hole (120) corresponds to the rotation axis of the second connecting piece (200) and the first connecting piece (100), The second end of the movable limiting piece (300) is located above the arc-shaped hole (120), and the diameter of the second end is greater than the width of the arc-shaped hole (120).

4. The connecting arm joint structure according to claim 3, characterized by The first end of the movable limiting piece (300) is located below the arc-shaped hole (120), and the diameter of the first end is greater than the width of the arc-shaped hole (120).

5. The connecting arm joint structure according to claim 3, characterized by The movable limiting piece (300) comprises a threaded column (310) and a first nut (320) and a second nut (330) arranged at both ends of the threaded column (310), the diameter of the threaded column (310) is matched with the width of the arc-shaped hole (120), The first nut (320) constitutes the first end of the movable limiting piece (300), and the second nut (330) constitutes the second end of the movable limiting piece (300).

6. The connecting arm joint structure according to claim 5, characterized by A gasket is arranged between the first nut (320) and the first connecting piece (100), and / or a gasket is arranged between the second nut (330) and the first connecting piece (100).

7. The connecting arm joint structure according to claim 1, characterized by The limiting part (220) is a protrusion arranged at the bottom of the second connecting piece (200).

8. The connecting arm joint structure according to claim 1, characterized by The middle part of the first connecting piece (100) is provided with a first wire hole (130), and the middle part of the second connecting piece (200) is provided with a second wire hole (230), when the first connecting piece (100) and the second connecting piece (200) are connected, the first wire hole (130) and the second wire hole (230) are in communication.

9. The connecting arm joint structure according to claim 1, characterized by The first connecting member (100) and the second connecting member (200) are a base (600) and a connecting arm respectively; or the first connecting member (100) and the second connecting member (200) are both connecting arms; or the first connecting member (100) and the second connecting member (200) are a connecting arm and a head assembly (700) respectively.

10. A display support, characterized in that The display support includes the connecting arm joint structure of any one of claims 1-9.

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