Arm assembly, display equipment support and display equipment

Abstract

The utility model provides an arm assembly, display equipment support and display equipment, the arm assembly comprises a rear swing arm and a front swing arm, the rear swing arm comprises a first rear swing arm and a second rear swing arm, the first rear swing arm and the second rear swing arm are arranged in parallel up and down; the front end of the first rear swing arm and the front end of the second rear swing arm are rotationally connected to the same first vertical rotating shaft, and the rear end of the first rear swing arm and the rear end of the second rear swing arm are rotationally connected to the same second vertical rotating shaft. The rear end of the front swing arm is rotationally connected to the first vertical rotating shaft and located between the front end of the first rear swing arm and the front end of the second rear swing arm, and a rotary connecting structure is arranged at the front end of the front swing arm. The whole arm assembly is of a three-arm combined structure, the bearing reliability can be guaranteed, and the overall stability of the three-arm combined structure is high; the arm assembly has a plurality of rotational degrees of freedom, correspondingly, the display equipment body has a plurality of rotational degrees of freedom, and the viewing angle adjusting range of the display equipment is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of display equipment, and in particular to an arm assembly of a display equipment bracket, a display equipment bracket and a display equipment. Background Art

[0002] Display devices are mainly used to realize display functions. Commonly used display devices, such as televisions, are mainly used to realize the viewing effect of users. When installing a display device, a bracket is usually provided to support the entire display device.

[0003] For a wall-mounted display device, the bracket is a wall-mounted bracket, which is mainly used to connect and install the display device on the wall. This bracket structure mainly includes three parts, namely, a wall connection component, an arm component and a device connection component, and the arm component is connected between the wall connection component and the device connection component.

[0004] The device connection component is mainly connected to the display device to support the display device; the arm component is used to connect the device connection component and the wall connection component; the wall connection component is used to achieve the connection and fixation between the entire display device bracket and the wall.

[0005] In the prior art, the arm assembly of the existing display device bracket usually adopts a double-arm structure set on the left and right to ensure load-bearing capacity and stability, that is, it contains two arm units, and the two arm units respectively include a front swing arm and a rear swing arm. The two arm units are cross-connected in an X shape or connected end to end in a diamond shape. Due to the mutual restraint of the two arm units, the angle adjustment range of the existing arm assembly itself is limited, and multi-degree-of-freedom rotation cannot be achieved, thereby limiting the viewing angle adjustment range of the display device and failing to meet the user's needs for different viewing angles.

[0006] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0007] In response to the problems pointed out in the background technology, the utility model proposes an arm assembly, a display device bracket and a display device. The arm assembly can realize multi-degree-of-freedom rotation, and then realize multi-degree-of-freedom rotation of the display device to meet the user's viewing needs at different viewing angles.

[0008] In order to achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0009] In some embodiments of the present application, an arm assembly is provided, comprising:

[0010] A rear swing arm, comprising a first rear swing arm and a second rear swing arm, wherein the first rear swing arm and the second rear swing arm are arranged in parallel up and down, a front end of the first rear swing arm and a front end of the second rear swing arm are rotatably connected to the same first vertical rotating shaft, and a rear end of the first rear swing arm and a rear end of the second rear swing arm are rotatably connected to the same second vertical rotating shaft;

[0011] A front swing arm is located at the front side of the rear swing arm, the rear end of the front swing arm is rotatably connected to the first vertical rotation axis, and the rear end of the front swing arm is located between the front ends of the first rear swing arm and the second rear swing arm, and the front end of the front swing arm is provided with a rotatable connection structure for rotatably connecting with the display device body with a vertical axis.

[0012] In some embodiments of the present application, the first rear swing arm and the second rear swing arm have the same structure and are symmetrical to each other, the front swing arm is arranged vertically parallel to the first rear swing arm, and the rear end of the front swing arm is rotatably connected to the middle part of the first vertical rotating shaft.

[0013] In some embodiments of the present application, the first rear swing arm and the second rear swing arm both include a rear swing arm body and two bushings respectively fixed on the front and rear ends of the rear swing arm body; the front end bushing of the first rear swing arm and the front end bushing of the second rear swing arm are rotationally matched with the first vertical rotating shaft, and the rear end bushing of the first rear swing arm and the rear end bushing of the second rear swing arm are rotationally matched with the second vertical rotating shaft.

[0014] In some embodiments of the present application, arc-shaped welding portions are respectively formed on the front and rear ends of the rear swing arm body, and the two sleeves are correspondingly clamped in the arc-shaped welding portions, and the arc-shaped welding portions wrap more than half of the circumference of the sleeve along the circumference of the sleeve.

[0015] In some embodiments of the present application, the rear swing arm body includes a first rear swing arm body part and a second rear swing arm body part which are arranged on the left and right sides, the first rear swing arm body part and the second rear swing arm body part are opposite to each other, the first rear swing arm body part and the second rear swing arm body part are welded together, and the arc-shaped welding part is correspondingly welded to the bushing.

[0016] In some embodiments of the present application, the first part of the rear swing arm body includes a vertical side plate and an upper flange and a lower flange formed on the upper and lower sides of the vertical side plate, and a first part of an arc-shaped welding portion is formed on the front and rear ends of the vertical side plate, respectively, and the upper flange and the lower flange are both folded toward the side where the second part of the rear swing arm body is located;

[0017] The second part of the rear swing arm body is symmetrically arranged with the first part of the rear swing arm body, and the second part of the arc-shaped welding part is formed on the front and rear ends of the vertical side plate of the second part of the rear swing arm body respectively;

[0018] The upper flange of the first part of the rear swing arm body is welded to the upper flange of the second part of the rear swing arm body, the lower flange of the first part of the rear swing arm body is welded to the lower flange of the second part of the rear swing arm body, and the first part of the arc-shaped welding part and the second part of the arc-shaped welding part are matched to form the arc-shaped welding part.

[0019] In some embodiments of the present application, the upper flange of the first part of the rear swing arm body is inclined downward relative to the horizontal plane, and the upper flange of the second part of the swing arm body is inclined downward relative to the horizontal plane, so that the upper surface of the rear swing arm body forms a downwardly concave recessed portion.

[0020] In some embodiments of the present application, the rear swing arm body is a hollow structure, a through hole is stretched and formed on the vertical side panel of the first part of the rear swing arm body, a through hole is stretched and formed on the vertical side panel of the second part of the rear swing arm body, and the free end of the through hole of the first part of the rear swing arm body is welded to the free end of the through hole of the second part of the swing arm body.

[0021] In some embodiments of the present application, a display device bracket is also proposed, including:

[0022] An arm assembly, which is the arm assembly described above;

[0023] A device connection assembly, located at the front side of the arm assembly, for connecting the display device body to the front end of the front swing arm with a vertical axis for rotation;

[0024] A wall connection assembly is located at the rear side of the arm assembly, and the wall connection assembly is rotationally connected to the rear end of the first rear swing arm and the rear end of the second rear swing arm via the second vertical rotation axis.

[0025] In some embodiments of the present application, a display device is further proposed, including a display device body and a display device bracket, and the display device bracket is the above-mentioned display device bracket.

[0026] Compared with the prior art, the advantages and positive effects of the utility model are:

[0027] 1. The arm assembly of the utility model comprises a front swing arm and a rear swing arm, the rear swing arm comprises a first rear swing arm and a second rear swing arm which are arranged in parallel up and down, the front end of the first rear swing arm and the front end of the second rear swing arm are rotatably connected to the same first vertical rotating shaft, the rear end of the first rear swing arm and the rear end of the second rear swing arm are rotatably connected to the same second vertical rotating shaft, the rear end of the front swing arm is rotatably connected to the first vertical rotating shaft and is located between the front end of the first rear swing arm and the front end of the second rear swing arm, and the front end of the front swing arm is provided with a rotating connection structure for being rotatably connected to the display device body with a vertical axis; the arm assembly of the utility model is a three-arm (forward arm, upper rear arm, lower rear arm) combination structure as a whole, which can ensure load-bearing reliability, and the overall stability of the three-arm combination structure is also high;

[0028] 2. The rear swing arm can rotate around the second vertical rotation axis, and the front swing arm can rotate around the first vertical rotation axis relative to the rear swing arm. A rotating connection structure for rotating with the display device body on a vertical axis is provided on the front end of the front swing arm. In this way, when installed, the arm assembly has multiple rotational degrees of freedom. Accordingly, the display device body has multiple rotational degrees of freedom, which broadens the viewing angle adjustment range of the display device, meets the user's viewing needs at different viewing angles, and improves the user experience.

[0029] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 exemplarily showing a perspective view of a front side view of a display device according to some embodiments;

[0031] Figure 2 exemplarily showing a perspective view of the rear side of a display device according to some embodiments;

[0032] Figure 3 exemplarily showing a perspective view showing the front side view of the device support according to some embodiments;

[0033] Figure 4 A perspective view of a first rear swing arm of a display device stand according to some embodiments is exemplarily shown;

[0034] Figure 5 for Figure 4 A magnified view of part A;

[0035] Figure 6 for Figure 4 A magnified view of part B;

[0036] Figure 7 for Figure 4 Exploded diagram of

[0037] Figure 8Schematic diagram of the cross-sectional structure of the first rear swing arm according to some embodiments is exemplarily shown;

[0038] Fig. 9 exemplarily showing a perspective view of a front swing arm according to some embodiments;

[0039] Fig.10 An exploded view of a front swing arm body according to some embodiments is exemplarily shown.

[0040] Reference numerals:

[0041] 1. Display device bracket; 100. Arm assembly; 110. Front swing arm; 111. Front swing arm body; 111A. Front swing arm body first part; 111B. Front swing arm body second part; 112. Articulated connection; 112A. Articulated connection first part; 112B. Articulated connection second part; 113. U-shaped frame; 114. Pin; 120. Rear swing arm; 121. First rear swing arm; 122. Second rear swing arm; 123. Rear swing arm body; 124. Bushing; 125. Arc welding part; 125A. Arc welding part first part a part; 125B, the second part of the arc welding part; 126, the first part of the rear swing arm body; 126A, the vertical side plate; 126B, the upper flange; 126C, the lower flange; 127, the second part of the rear swing arm body; 128, the through hole; 130, the first vertical shaft; 140, the second vertical shaft; 200, the wall connection component; 210, the vertical plate; 220, the mounting seat; 300, the equipment connection component; 310, the first equipment connection member; 311, the horizontal connection part; 312, the vertical connection part; 320, the second equipment connection member;

[0042] 2. Display device body;

[0043] 3. Wall. Implementation

[0044] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0045] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0046] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0047] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0049] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0050] Reference Figure 1 and Figure 2 In some embodiments of the present application, a display device is provided, such as a television, including a display device body 2 and a display device bracket 1. The display device body 2 is located on the front side of the display device bracket 1, close to the user side, and the display device bracket 1 is located on the rear side of the display device body 2, close to the wall 3. The display device bracket 1 is fixedly installed on the wall 3, and its front end is connected to the display device body 2 as a whole, thereby realizing the wall-mounted installation of the display device body 2.

[0051] Reference Figures 3 to 10 , while combining Figure 1 and Figure 2 In some embodiments of the present application, a display device bracket 1 is provided, including a wall connection component 200, a device connection component 300 and an arm component 100.

[0052] Among them, the arm assembly 100 is located between the wall connection assembly 200 and the device connection assembly 300, and its front and rear ends are respectively rotatably connected to the wall connection assembly 200 and the device connection assembly 300, so that the display device body 2 is installed as a whole on the wall 3 through the display device bracket 1, thereby realizing the wall-mounted installation of the display device body 2.

[0053] The arm assembly 100 includes a front swing arm 110 and a rear swing arm 120 disposed front and rear.

[0054] The rear swing arm 120 includes a first rear swing arm 121 and a second rear swing arm 122, and the first rear swing arm 121 and the second rear swing arm 122 are arranged in parallel up and down, and the front end of the first rear swing arm 121 and the front end of the second rear swing arm 122 are rotatably connected to the same first vertical rotating shaft 130, and the rear end of the first rear swing arm 121 and the rear end of the second rear swing arm 122 are rotatably connected to the same second vertical rotating shaft 140, and the entire rear swing arm 120 is hinged to the wall connection assembly 200 through the second vertical rotating shaft 140.

[0055] The front swing arm 110 is located on the front side of the rear swing arm 120, and the rear end of the front swing arm 110 is rotatably connected to the first vertical rotating shaft 130, and the rear end of the front swing arm 110 is located between the front end of the first rear swing arm 121 and the front end of the second rear swing arm 122. A rotating connection structure for rotationally connecting to the display device body 2 with a vertical axis is provided on the front end of the front swing arm 110, that is, the rotating connection structure rotationally connects the front end of the front swing arm 110 with the display device body 2, and the rotation axis is a vertical axis.

[0056] The wall connection assembly 200 is fixedly connected to the wall 3 and is located on the rear side of the arm assembly 100. The wall connection assembly 200 is rotationally connected to the rear ends of the first rear swing arm 121 and the second rear swing arm 122 via the second vertical rotation axis 140, so that the rear swing arm 120 as a whole can rotate around the second vertical rotation axis 140 relative to the wall connection assembly 200.

[0057] The arm assembly 100 in some embodiments of the present application includes a front swing arm 110 and a rear swing arm 120, and the rear swing arm 120 includes a first rear swing arm 121 and a second rear swing arm 122 arranged in parallel up and down, the front end of the first rear swing arm 121 and the front end of the second rear swing arm 122 are rotatably connected to the same first vertical rotation axis 130, and the rear end of the first rear swing arm 121 and the rear end of the second rear swing arm 122 are rotatably connected to the same second vertical rotation axis 140, the rear end of the front swing arm 110 is rotatably connected to the first vertical rotation axis 130, and is located between the front end of the first rear swing arm 121 and the front end of the second rear swing arm 122, and the front end of the front swing arm 121 is provided with a rotating connection structure for being rotatably connected to the display device body 2 with a vertical axis; then the arm assembly 100 in some embodiments of the present application is a three-arm (forearm, upper rear arm, lower rear arm) combination structure as a whole, which can ensure load-bearing reliability, and the overall stability of the three-arm combination structure is also high.

[0058] In the arm assembly 100 in some embodiments of the present application, the rear swing arm 120 can rotate around the second vertical rotation axis 140, and the front swing arm 110 can rotate around the first vertical rotation axis 130 relative to the rear swing arm 120. A rotating connection structure for rotatingly connecting with the display device body 2 along a vertical axis is provided on the front end of the front swing arm 110. In this way, when installed, the arm assembly 100 has multiple rotational degrees of freedom. Correspondingly, the display device body 2 has multiple rotational degrees of freedom, which broadens the viewing angle adjustment range of the display device, meets the viewing needs of users at different viewing angles, and improves user experience.

[0059] In some embodiments of the present application, Figure 3As shown, the first rear swing arm 121 and the second rear swing arm 122 have the same structure and are symmetrical to each other, the front swing arm 110 is arranged parallel to the first rear swing arm 121, and the rear end of the front swing arm 110 is rotatably connected to the middle part of the first vertical shaft 130. This makes the overall structure of the arm assembly 100 more symmetrical, and the force is as uniform as possible, which is conducive to further improving stability.

[0060] In some embodiments of the present application, the first rear swing arm 121 and the second rear swing arm 122 both include a rear swing arm body 123 and two bushings 124 respectively fixed on the front and rear ends of the rear swing arm body 123; the bushing 124 at the front end of the first rear swing arm 121 and the bushing 124 at the front end of the second rear swing arm 122 both rotate with the first vertical rotating shaft 130, and the bushing 124 at the rear end of the first rear swing arm 121 and the bushing 124 at the rear end of the second rear swing arm 122 both rotate with the second vertical rotating shaft 140 to facilitate installation and make installation more convenient.

[0061] In the prior art, the swing arm of the arm assembly of the display device bracket usually adopts a square tube and a shaft sleeve welding structure, that is, a square tube is used as the arm body, and vertically arranged shaft sleeves are welded at the front and rear ends. Due to the structural limitations of the square tube, the contact area between the square tube and the shaft sleeve is small, and the welding connection surface is small, which makes the structural strength of the entire swing arm poor, and then the structural strength of the arm assembly is poor, which easily leads to cracking at the welding point during the product load test.

[0062] In order to solve this problem existing in the prior art, in some embodiments of the present application, arc-shaped welding portions 125 are respectively formed on the front and rear ends of the rear swing arm body 123, and the shaft sleeves 124 on the front and rear ends of the rear swing arm body 123 are correspondingly clamped in the arc-shaped welding portions 125, and the arc-shaped welding portions 125 wrap more than half of the circumference of the shaft sleeve 124 along the circumferential direction of the shaft sleeve 124.

[0063] like Figures 4 to 6 As shown, taking the first rear swing arm 121 as an example, the arc-shaped welding portion 125 at the front end completely wraps the sleeve 124 at the front end of the first rear swing arm 121 along the circumferential direction of the sleeve, and the arc-shaped welding portion 125 at the rear end completely wraps the sleeve 124 at the rear end of the first rear swing arm 121 along the circumferential direction of the sleeve. The contact area between the arc-shaped welding portion 125 and the sleeve 124 is greatly increased compared with the prior art, that is, the welding connection surface area between the arc-shaped welding portion 125 and the sleeve 124 is greatly increased, thereby improving the welding reliability between the rear swing arm body 123 and the sleeve 124, thereby improving the structural strength of the rear swing arm 120 and the structural strength of the entire arm assembly 100, and further improving the overall structural strength of the display device bracket 1 and the reliability of the wall-mounted installation of the display device.

[0064] Similarly, the front swing arm 110 may also adopt this structural form.

[0065] In addition, since the square tubes in the prior art are usually standard parts, it is necessary to select from the existing square tube standard parts size structure when manufacturing the swing arm, which has certain limitations and cannot achieve the best cost under the premise of ensuring the most optimized structure.

[0066] To solve this problem, Figures 4 to 8 As shown, in some embodiments of the present application, the rear swing arm body 123 is a split structure, which includes a first rear swing arm body part 126 and a second rear swing arm body part 127 arranged on the left and right, the first rear swing arm body part 126 and the second rear swing arm body part 127 are opposite to each other, the first rear swing arm body part 126 and the second rear swing arm body part 127 are welded together, and the arc-shaped welding part 125 is correspondingly welded to the shaft sleeve 124.

[0067] The rear swing arm body 123 may not use existing square tube standard parts, for example, it may be formed by sheet metal stamping or machining, so that the rear swing arm body 123 can be changed from being purchased from outside to being independently produced, and the production capacity can be controlled. The size of the rear swing arm body 123 is not restricted by existing standardized square tubes, and its key parameters such as length, width, height, and wall thickness can be independently designed and adjusted, so as to save costs while ensuring performance with the most optimized structure.

[0068] In some embodiments of the present application, the first part 126 of the rear swing arm body includes a vertical side panel 126A and an upper flange 126B and a lower flange 126C formed on the upper and lower sides of the vertical side panel 126A, and an arc-shaped welding portion first part 125A is formed on the front and rear ends of the vertical side panel 126A, respectively, and the upper flange 126B and the lower flange 126C are both folded toward the side where the second part 127 of the rear swing arm body is located.

[0069] The second part 127 of the rear swing arm body is symmetrically arranged with the first part 126 of the rear swing arm body, that is, the second part 127 of the rear swing arm body also includes a vertical side panel and an upper flange and a lower flange formed on the upper and lower sides of the vertical side panel, the vertical side panel extends forward and backward, the upper flange is located on the upper side of the vertical side panel, and the lower flange is located on the lower flange of the vertical side panel; the second part 125B of the arc-shaped welding part is respectively formed on the front and rear ends of the vertical side panel of the second part 127 of the rear swing arm body, and the upper flange and the lower flange of the second part 127 of the rear swing arm body are both folded toward the side where the first part 126 of the rear swing arm body is located.

[0070] The upper flange 126B of the first part 126 of the rear swing arm body is welded to the upper flange of the second part 127 of the rear swing arm body, the lower flange 126C of the first part 126 of the rear swing arm body is welded to the lower flange of the second part 127 of the rear swing arm body, the first part 125A of the arc welding part and the second part 125B of the arc welding part are matched to form the arc welding part 125, and are welded to the sleeve 124. The first part 126 of the rear swing arm body and the second part 127 of the rear swing arm body can be formed by sheet metal stamping, which is convenient for processing and has high structural strength; at the same time, after the first part 126 of the rear swing arm body and the second part 127 of the rear swing arm body of the above structure are welded and connected, a hollow structure such as a square tube can be formed inside, such as Fig. 9 As shown, the weight of the rear swing arm body 123 is reduced as much as possible.

[0071] In some embodiments of the present application, the upper flange 126B of the first portion 126 of the rear swing arm body is inclined downward relative to the horizontal plane.

[0072] The upper flange of the second portion 127 of the rear swing arm body is inclined downward relative to the horizontal plane.

[0073] When the downwardly inclined upper flange 126B of the first part 126 of the rear swing arm body and the downwardly inclined upper flange 127 of the second part 127 of the rear swing arm body are aligned, a downwardly concave recessed portion is formed on the upper surface of the rear swing arm body 123 .

[0074] The recessed portion can be used as a wiring trough, and the power cord of the front display device can be routed through the wiring trough, which is beneficial to prevent the wiring harness from being exposed and improve the safety of use. The recessed portion can be equipped with a cover to prevent dust and restrain the wiring harness, and the cover is provided with a threading hole for avoiding the power cord to pass through.

[0075] In some embodiments of the present application, Figures 1 to 8 As shown, a through hole 128 is stretched and formed on the vertical side plate 126A of the first part 126 of the rear swing arm body, and a through hole 128 is also stretched and formed on the vertical side plate of the second part 127 of the rear swing arm body, and the free end of the through hole 128 of the first part 126 of the rear swing arm body is welded to the free end of the through hole 128 of the second part 127 of the rear swing arm body.

[0076] On the one hand, the stretch-formed through hole 128 can improve the structural strength of the first part 126 and the second part 127 of the rear swing arm body.

[0077] On the other hand, the free end of the through hole 128 of the first part 126 of the rear swing arm body is welded to the free end of the through hole 128 of the second part 127 of the rear swing arm body, which further increases the welding connection area of ​​the first part 126 of the rear swing arm body and the second part 127 of the rear swing arm body, which is beneficial to improving welding reliability.

[0078] On the other hand, the through hole 128 also serves to enhance the overall appearance of the rear swing arm body 123 .

[0079] In some embodiments of the present application, Fig. 9 and Fig.10 As shown, combined with Figure 3 The front swing arm 110 includes a front swing arm body 111 and two hinged connection parts respectively fixed on the front and rear ends of the front swing arm body 111; the front swing arm body 111 includes a front swing arm body first part 111A and a front swing arm body second part 111B arranged on the left and right, the front swing arm body first part 111A and the front swing arm body second part 111B are opposite to each other, and the front swing arm body first part 111A and the front swing arm body second part 111B are welded together.

[0080] That is, the front swing arm 110 also adopts a split structure, and the first part 111A and the second part 111B of the front swing arm body can both be formed by sheet metal stamping and have high structural strength; the split structure of the front swing arm 110 is convenient for processing and independent production, and the production capacity is controllable. The size of the rear swing arm body 123 is not restricted by the existing standardized square tubes, and its key parameters such as length, width, height, and wall thickness can be independently designed and adjusted, so as to save costs while ensuring performance with the most optimized structure.

[0081] At the same time, after the first part 111A and the second part 111B of the front swing arm body of the above structure are welded and connected, a hollow structure like a square tube can be formed inside, which is similar to the rear swing arm body 123, so as to reduce the weight of the front swing arm body 111 as much as possible.

[0082] Regarding the hinged connection part 112 on the rear end of the front swing arm body 111, an arc-shaped hinged connection part first part 112A is formed on the rear end of the first part 111A of the front swing arm body, and an arc-shaped hinged connection part second part 112B is formed on the rear end of the second part 111B of the front swing arm body.

[0083] The first hinge connection part 112A and the second hinge connection part 112B are combined to form the hinge connection part 112 on the rear end of the front swing arm body 111; the hinge connection part 112 on the rear end of the front swing arm body 111 is arc-shaped and wraps more than half of the circumference of the first vertical rotation shaft 130 along the circumference of the first vertical rotation shaft 130. Figure 3 As shown, the hinged connection part 112 on the rear end of the front swing arm body 111 wraps the entire circumference of the first vertical rotating shaft 130 along the circumferential direction of the first vertical rotating shaft 130, and completely wraps the first vertical rotating shaft 130 along the circumferential direction. The contact area between the two is greatly increased, thereby improving the hinge reliability of the hinged connection part 112 on the rear end of the front swing arm body 111 and the first vertical rotating shaft 130.

[0084] For the hinged connection portion on the front end of the front swing arm body 111, as shown in FIG. Figures 9 and 10 As shown, a U-shaped frame 113 is welded on the front end of the front swing arm body 111. The U-shaped frame 113 is through-through and has an opening facing forward. A vertically arranged pin shaft 114 is connected to the U-shaped frame 113. The U-shaped frame 113 and the pin shaft 114 constitute a hinged connection portion on the front end of the front swing arm body 111. The pin shaft 114 is a rotational connection structure for rotationally connecting the front end of the front swing arm 110 with the device connection assembly 300 with a vertical axis, that is, the pin shaft 114 realizes rotational connection between the front end of the front swing arm 110 and the device connection assembly 300, and then realizes rotational connection with the display device body 2 with a vertical axis.

[0085] In some embodiments of the present application, Fig. 9 and Fig.10 As shown, through holes 128 are also formed on the first part 111A of the front swing arm body and the first part 111B of the front swing arm body, respectively, and the free ends of the two through holes 128 are welded together.

[0086] Similarly, on one hand, the stretch-formed through hole 128 can improve the structural strength of the first part 111A and the first part 111B of the front swing arm body.

[0087] On the other hand, the free ends of the two through holes 128 are welded together as a whole, which further increases the welding connection area between the first part 111A of the front swing arm body and the first part 111B of the front swing arm body, which is beneficial to improving welding reliability.

[0088] On the other hand, the through hole 128 also serves to enhance the overall aesthetics of the front swing arm body 111 .

[0089] In some embodiments of the present application, the device connection assembly 300 includes a first device connector 310 and a second device connector 320 connected to each other, the first device connector 310 includes two horizontal connection parts 311 that are arranged in parallel up and down and extend horizontally left and right, and a vertical connection part 312 whose two ends are respectively fixed to the two horizontal connection parts 311, screw holes are provided at both ends of the horizontal connection part 311, and the horizontal connection part 311 is fixed to the back of the display device body 2 by screwing.

[0090] For the wall connection assembly 200, in some embodiments of the present application, such as Figure 1 As shown, the wall connection assembly 200 is a frame structure, which includes a vertical plate 210 and mounting seats 220 arranged on the upper and lower ends of the vertical plate 210. The mounting seats 220 are provided with screw mounting holes and are fixed to the wall 3 by screws. The vertical plate 210 is in contact with the wall surface, and the upper and lower ends of the second vertical rotating shaft 140 are rotatably connected to the two mounting seats 220 respectively.

[0091] The screw mounting hole may be a round hole or a horizontally extending long hole, so as to facilitate the horizontal position adjustment when the wall connection assembly 200 is tightened.

[0092] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0093] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by technicians familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An arm assembly, characterized in that: include: A rear swing arm, comprising a first rear swing arm and a second rear swing arm, wherein the first rear swing arm and the second rear swing arm are arranged in parallel up and down, a front end of the first rear swing arm and a front end of the second rear swing arm are rotatably connected to the same first vertical rotating shaft, and a rear end of the first rear swing arm and a rear end of the second rear swing arm are rotatably connected to the same second vertical rotating shaft; A front swing arm is located at the front side of the rear swing arm, the rear end of the front swing arm is rotatably connected to the first vertical rotation axis, and the rear end of the front swing arm is located between the front ends of the first rear swing arm and the second rear swing arm, and the front end of the front swing arm is provided with a rotatable connection structure for rotatably connecting with the display device body with a vertical axis.

2. The arm assembly according to claim 1, characterized in that The first rear swing arm and the second rear swing arm have the same structure and are symmetrical to each other. The front swing arm is arranged vertically parallel to the first rear swing arm, and the rear end of the front swing arm is rotatably connected to the middle part of the first vertical rotating shaft.

3. The arm assembly according to claim 1 or 2, characterized in that: The first rear swing arm and the second rear swing arm both include a rear swing arm body and two bushings respectively fixed on the front and rear ends of the rear swing arm body; the front end bushing of the first rear swing arm and the front end bushing of the second rear swing arm are rotationally matched with the first vertical rotating shaft, and the rear end bushing of the first rear swing arm and the rear end bushing of the second rear swing arm are rotationally matched with the second vertical rotating shaft.

4. The arm assembly according to claim 3, characterized in that Arc-shaped welding parts are respectively formed on the front and rear ends of the rear swing arm body, and the two sleeves are correspondingly clamped in the arc-shaped welding parts. The arc-shaped welding parts wrap more than half of the circumference of the sleeve along the circumference of the sleeve.

5. The arm assembly according to claim 4, characterized in that The rear swing arm body includes a first rear swing arm body part and a second rear swing arm body part which are arranged on the left and right sides. The first rear swing arm body part and the second rear swing arm body part are opposite to each other. The first rear swing arm body part and the second rear swing arm body part are welded together, and the arc-shaped welding part is correspondingly welded to the bushing.

6. The arm assembly according to claim 5, characterized in that The first part of the rear swing arm body includes a vertical side plate and an upper flange and a lower flange formed on the upper and lower sides of the vertical side plate, and a first part of an arc-shaped welding portion is formed on the front and rear ends of the vertical side plate, respectively, and the upper flange and the lower flange are both folded toward the side where the second part of the rear swing arm body is located; The second part of the rear swing arm body is symmetrically arranged with the first part of the rear swing arm body, and the second part of the arc-shaped welding part is formed on the front and rear ends of the vertical side plate of the second part of the rear swing arm body respectively; The upper flange of the first part of the rear swing arm body is welded to the upper flange of the second part of the rear swing arm body, the lower flange of the first part of the rear swing arm body is welded to the lower flange of the second part of the rear swing arm body, and the first part of the arc-shaped welding part and the second part of the arc-shaped welding part are matched to form the arc-shaped welding part.

7. The arm assembly according to claim 6, characterized in that The upper flange of the first part of the rear swing arm body is inclined downward relative to the horizontal plane, and the upper flange of the second part of the swing arm body is inclined downward relative to the horizontal plane, so that the upper surface of the rear swing arm body forms a downwardly concave recessed portion.

8. The arm assembly according to claim 6, characterized in that The rear swing arm body is a hollow structure, a through hole is stretched and formed on the vertical side plate of the first part of the rear swing arm body, a through hole is stretched and formed on the vertical side plate of the second part of the rear swing arm body, and the free end of the through hole of the first part of the rear swing arm body is welded with the free end of the through hole of the second part of the swing arm body.

9. A display device bracket, characterized in that: include: An arm assembly, which is the arm assembly according to any one of claims 1 to 8; A device connection assembly, located at the front side of the arm assembly, for connecting the display device body to the front end of the front swing arm with a vertical axis for rotation; A wall connection assembly is located at the rear side of the arm assembly, and the wall connection assembly is rotationally connected to the rear end of the first rear swing arm and the rear end of the second rear swing arm via the second vertical rotation axis.

10. A display device, comprising a display device body and a display device bracket, characterized in that: The display device bracket is the display device bracket according to claim 9.

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