A rotation limiting device for a display arm

Abstract

The utility model discloses a rotation limit device for a display arm, the display arm comprises a connecting seat, a fixed seat and a locking disk, the connecting seat is rotatably connected to the fixed seat through the locking disk, and the locking disk is arranged inside the connecting seat, the rotation limit device comprises a limit ring, the limit ring is rotatably installed inside the fixed seat, and the limit ring is located directly below the locking disk, the limit ring is provided with a limit part 1 protruding upward, the locking disk is provided with a limit part 2 protruding downward, and the limit part 2 can abut against the limit part 1, and at least one limit long groove is also provided on the side of the limit ring, the fixed seat is connected to one end of the limit member, and the other end of the limit member is inserted into the limit long groove.

Description

Technical Field

[0001] The utility model relates to the technical field of limiting mechanical structures, in particular to a display support arm rotation limiting device. Background Art

[0002] The monitor arm refers to the support that fixes the monitor. When the monitor arm cannot continue to rotate after rotating to a certain angle around the rotation axis, it is called limit.

[0003] Some of the existing monitor arms do not have the rotation limit function, which means that the monitor can rotate infinitely around the arm's rotation axis, while cables need to be passed through the arm. Infinitely rotating the monitor will entangle the cables inside the arm, eventually causing damage to the cables and equipment. Some other monitor arms have a rotation limit function, but the added limit structure causes the monitor's rotation angle to be less than 360°, that is, the monitor cannot rotate a full circle, which limits the range of use of the monitor's rotation angle. Summary of the invention

[0004] The purpose of the present application is to provide a display arm rotation limiting device.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a display arm rotation limit device, the display arm includes a connecting seat, a fixed seat and a locking disk, the connecting seat is rotatably connected to the fixed seat through the locking disk, and the locking disk is arranged inside the connecting seat, and is characterized in that the rotation limit device includes a limit ring, the limit ring is rotatably installed inside the fixed seat, and the limit ring is located directly below the locking disk, the limit ring has an upwardly protruding limit portion 1, the locking disk has a downwardly protruding limit portion 2, and the limit portion 2 can abut against the limit portion 1, and at least one limit long groove is opened on the side of the limit ring, the fixed seat is connected to one end of the limit member, and the other end of the limit member is inserted into the limit long groove.

[0006] The first limiting part is a limiting block, and the second limiting part is a limiting pin.

[0007] The limiting member is a limit screw or a cylindrical pin.

[0008] The locking disc is fixed to the connecting seat by connecting screws.

[0009] In summary, the technical effects and advantages of the utility model are:

[0010] The utility model designs a limit plate which can rotate to a certain angle, replacing the original fixed limit structure, and forms a rotation limit structure with a rotation angle exceeding 360 degrees. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below.

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 It is a cross-sectional view of the utility model;

[0014] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model with part of it disassembled;

[0015] Figure 4 It is a three-dimensional structural schematic diagram of the locking disk in the utility model;

[0016] Figure 5 It is a three-dimensional structural schematic diagram of the limiting ring in the utility model;

[0017] In the figure: 1, connecting seat; 2, fixing seat; 3, limiting member; 4, locking plate; 4a, limiting part 2; 5, connecting screw; 6, limiting ring; 6a, limiting part 1; 6b, limiting long groove. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] like Figure 1-Figure 5 As shown, the present display arm rotation limit device, the display arm comprises a connecting seat 1, a fixing seat 2 and a locking disk 4, the connecting seat 1 is rotatably connected to the fixing seat 2 through the locking disk 4, and the locking disk 4 is arranged inside the connecting seat 1, the rotation limit device comprises a limit ring 6, the limit ring 6 is rotatably installed inside the fixing seat 2, and the limit ring 6 is located directly below the locking disk 4, the limit ring 6 has a limit portion 1 6a protruding upward, the locking disk 4 has a limit portion 2 4a protruding downward, and the limit portion 2 4a can abut against the limit portion 1 6a, and at least one limit long groove 6b is opened on the side of the limit ring 6. In the present embodiment, the number of the limit long grooves 6b is four; in practice, the specific number of the limit long grooves 6b can be set as needed; the fixing seat 2 is connected to one end of the limiting member 3, and the other end of the limiting member 3 is inserted into the limit long groove 6b.

[0020] The limiting part 1 6a is a limiting block, and the limiting part 2 4a is a limiting pin.

[0021] The limiting member 3 is a limit screw or a cylindrical pin.

[0022] The locking plate 4 is fixed to the connecting seat 1 by connecting screws 5 .

[0023] The specific operation is as follows: the locking disk 4 is inserted from the bottom of the fixed seat 2; the cylindrical part of the connecting seat 1 is inserted from the top of the fixed seat 2; the locking disk 4 is fixed together with the connecting seat 1 by connecting screws 5, so that the connecting seat 1 can rotate freely in the hole on the fixed seat 2; the limiting part 6a of the limiting ring 6 is facing upwards and inserted from the bottom of the fixed seat 2; four limiting parts 3 are installed in the four front, back, left and right mounting holes on the fixed seat 2, and inserted into the limiting long groove 6b of the limiting ring 6; the limiting ring 6 can rotate in a small range inside the fixed seat 2 along the limiting long groove 6b.

[0024] When the display is rotated, the display drives the connecting base 1 to rotate. Since the locking disk 4 is fixed to the connecting base 1 by the connecting screws 5, the locking disk 4 rotates together with the connecting base 1; when the limiting portion 2 4a on the locking disk 4 contacts the limiting portion 1 6a on the limiting ring 6, the limiting ring 6 starts to rotate together with the locking disk 4; when one side of the limiting long groove 6b on the limiting ring 6 contacts the limiting member 3, since the limiting member 3 is fixed on the fixing base 2 and cannot move, the limiting ring 6 can no longer rotate at this time, thereby preventing the display from rotating.

[0025] The rotation angle of the display can be controlled by utilizing the size of the limiting long groove 6b and the limiting portion 6a on the limiting ring 6.

[0026] The display arm rotation limit device can not only make the display arm rotate more than one circle, thus expanding the use range of the display, but also add a limit structure so that the display arm cannot rotate unlimitedly, thus protecting the safety of cables and equipment.

[0027] The above components are all common standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A display arm rotation limiting device, the display arm comprising a connecting seat (1), a fixing seat (2) and a locking plate (4), the connecting seat (1) being rotatably connected to the fixing seat (2) via the locking plate (4), and the locking plate (4) being arranged inside the connecting seat (1), characterized in that: The rotation limiting device comprises a limiting ring (6), the limiting ring (6) is rotatably mounted inside the fixing seat (2), and the limiting ring (6) is located directly below the locking disk (4), the limiting ring (6) has a limiting portion 1 (6a) protruding upward, the locking disk (4) has a limiting portion 2 (4a) protruding downward, and the limiting portion 2 (4a) can abut against the limiting portion 1 (6a), and the side surface of the limiting ring (6) is also provided with at least one limiting long groove (6b), the fixing seat (2) and one end of the limiting member (3) are connected, and the other end of the limiting member (3) is inserted into the limiting long groove (6b).

2. A display arm rotation limiting device according to claim 1, characterized in that: The first limiting portion (6a) is a limiting block, and the second limiting portion (4a) is a limiting pin.

3. The display arm rotation limiting device according to claim 1, characterized in that: The limiting member (3) is a limit screw or a cylindrical pin.

4. The display arm rotation limiting device according to claim 1, characterized in that: The locking disk (4) is fixed to the connecting seat (1) via connecting screws (5).

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