Supporting arm and display support

Abstract

The utility model provides a supporting arm and a displayer support, and belongs to the technical field of displayer supports, the supporting arm comprises a first connecting base, a second connecting base, a first arm and a second arm, and the first connecting base and the second connecting base are rotationally connected with the first arm and the second arm respectively to form a quadrilateral structure; the elastic piece is used for providing supporting force for the supporting arm; one end of the elastic piece is connected to one of the first connecting seat and the second connecting seat; and the adjusting structure is mounted on one of the first arm and the second arm, is used for adjusting the expansion amount of the elastic piece, and is rotationally connected with the other end of the elastic piece. According to the utility model, through the matching between the adjusting structure and the elastic piece, the supporting arm can apply different force values, so that the universality of the supporting arm is improved. Meanwhile, the supporting arm is simple in structure and convenient to adjust.

Description

Technical Field

[0001] The utility model belongs to the technical field of display brackets and relates to a support arm, in particular to a display bracket with a support arm. Background Art

[0002] With the improvement of science and technology and living standards, monitors are increasingly used in production and life. In order to meet the needs of adjusting the angle and orientation of monitors, a variety of monitor stands with different signals have appeared on the market. The structure used to adjust the angle and orientation of the monitor in the monitor stand is the support arm.

[0003] For example, a support force angle self-adjusting structure of a support frame disclosed in Chinese patent (CN213271650U) includes a large joint and a spring lower cover connected to each other, a spring support structure is installed in the spring lower cover, and the spring support structure is movably connected to the large joint through a support force self-adjusting structure. The support force self-adjusting structure includes a force adjusting pendulum movably connected to the large joint at one end and the spring support structure at one end, and an angle adjusting pendulum movably connected to the force adjusting pendulum at one end and the spring lower cover at the other end.

[0004] According to the above description, the structure for adjusting the spring force and angle is relatively complex, has many non-standard parts, and is relatively costly. Utility Model Content

[0005] The purpose of the utility model is to address the above problems in the existing technology and to provide a support arm with simple structure, easy operation and low cost.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a support arm, comprising:

[0007] A first connecting seat, a second connecting seat, a first arm, and a second arm, wherein the first connecting seat and the second connecting seat are rotatably connected to the first arm and the second arm respectively to form a quadrilateral structure;

[0008] An elastic member is used to provide a supporting force for the support arm; one end of the elastic member is connected to one of the first connecting seat and the second connecting seat;

[0009] The adjusting structure is installed on one of the first arm and the second arm and is used for adjusting the expansion and contraction amount of the elastic member. The adjusting structure is rotatably connected to the other end of the elastic member.

[0010] In the above-mentioned support arm, the elastic member is a tension spring; one end of the elastic member is rotationally connected to the first connecting seat or the rotational connection between the first connecting seat and the first arm, and the adjustment structure is installed on the second arm.

[0011] In the above-mentioned support arm, the adjustment structure includes an adjusting member and a connecting member. The connecting member is slidably fitted on the second arm. One end of the elastic member is rotatably connected to the first connecting seat. One end of the connecting member is rotatably connected to the other end of the elastic member. The other end of the connecting member is connected to the adjusting member, and the connecting member is driven to slide through the adjusting member.

[0012] In the above-mentioned support arm, the adjusting member is a screw rod, and the threaded end of the screw rod is threadedly connected to the connecting member.

[0013] In the above-mentioned supporting arm, the adjusting member is movably connected to the second arm.

[0014] In the above-mentioned support arm, the adjustment structure further includes an adjustment member support member, the adjustment member support member is fixed to the second arm, and the adjustment member is rotatably connected to the adjustment member support member;

[0015] Alternatively, the adjustment structure further includes an adjustment member support member, which is fixed on the second arm and is provided with a through hole for the adjustment member to pass through and for the adjustment member to rotate.

[0016] In the above-mentioned support arm, the connecting member includes a first connecting part, a second connecting part, and a third connecting part. One end of the second connecting part is connected to one end of the first connecting part, and the other end of the second connecting part is connected to one end of the third connecting part. A connecting column rotatably connected to the elastic member is connected between the other end of the first connecting part and the other end of the third connecting part.

[0017] In the above-mentioned support arm, two sliding parts are respectively provided at both ends of the connecting column, and sliding grooves are respectively provided on both sides of the second arm, and the two sliding parts are respectively slidably fitted in the two sliding grooves.

[0018] In the above-mentioned support arm, the second arm is provided with an avoidance notch for inserting the adjusting wrench.

[0019] The utility model also provides a display bracket, which comprises a supporting arm.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) The utility model provides a support arm that can provide different force values by adjusting the coordination between the structure and the elastic member, thereby improving the versatility of the support arm. In addition, the support arm has a simple structure and is easy to adjust.

[0022] (2) Through the sliding fit between the connecting member and the second arm, when the adjusting member adjusts the expansion and contraction amount of the elastic member, the expansion and contraction direction of the elastic member is always consistent with the axial direction of the elastic member, thereby avoiding deflection or twisting of the elastic member, thereby improving the reliability of the expansion and contraction amount adjustment on the elastic member. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a support arm of the utility model.

[0024] Figure 2 It is an exploded view of a support arm of the utility model.

[0025] Figure 3 It is a cross-sectional view of a support arm of the utility model.

[0026] In the figure,

[0027] 10. First connecting seat; 11. First pivot hole; 12. Second pivot hole;

[0028] 20. Second connecting seat;

[0029] 30. First arm, 31. First connecting hole;

[0030] 40. Second arm; 41. Slide groove; 42. Avoidance notch; 43. Second connecting hole;

[0031] 50. Elastic parts;

[0032] 60. Adjustment structure; 61. Adjustment member; 62. Connecting member; 621. First connecting portion; 622. Second connecting portion; 623. Third connecting portion; 624. Connecting column; 6241. Sliding portion; 63. Adjustment member support member; 631. Through hole;

[0033] 70. First rotating member;

[0034] 80. Second rotating member. DETAILED DESCRIPTION

[0035] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] like Figures 1 to 3 As shown, the present invention provides a support arm, comprising:

[0038] The first connecting base 10, the second connecting base 20, the first arm 30 and the second arm 40, the first connecting base 10 and the second connecting base 20 are rotatably connected to the first arm 30 and the second arm 40 respectively, forming a quadrilateral structure;

[0039] The elastic member 50 is used to provide support force for the support arm; one end of the elastic member 50 is connected to one of the first connecting seat 10 and the second connecting seat 20;

[0040] The adjustment structure 60 is mounted on one of the first arm 30 and the second arm 40 to adjust the extension and contraction of the elastic member 50 . The adjustment structure 60 is rotatably connected to the other end of the elastic member 50 .

[0041] The support arm provided by the present invention can provide different force values by adjusting the cooperation between the structure 60 and the elastic member 50, thereby improving the versatility of the support arm. In addition, the support arm has a simple structure and is easy to adjust.

[0042] It is worth mentioning that the elastic member 50 is a tension spring structure.

[0043] Preferably, one end of the elastic member 50 is rotatably connected to the first connecting seat 10 or the rotatable connection between the first connecting seat 10 and the first arm 30 , and the adjustment structure 60 is mounted on the second arm 40 .

[0044] It is worth mentioning that the connection position of the elastic member 50 can be reversibly set. That is, one end of the elastic member 50 is rotatably connected to the second connecting base 20, or to the rotatable connection between the second connecting base 20 and the first arm 30, and the other end of the elastic member 50 is rotatably connected to the adjustment structure 60 mounted on the second arm 40.

[0045] It is further pointed out that the first connecting seat 10 and the second connecting seat 20 are respectively provided with a first pivot hole 11 and a second pivot hole 12, and the first pivot hole 11 and the second pivot hole 12 are arranged in parallel up and down, wherein the first pivot hole 11 on the first connecting seat 10 and the first pivot hole 11 on the second connecting seat 20 serve as the connection positions at both ends of the first arm 30, and the second pivot hole 12 on the first connecting seat 10 and the second pivot hole 12 on the second connecting seat 20 serve as the connection positions at both ends of the second arm 40.

[0046] It is further pointed out that first connecting holes 31 and second connecting holes 43 are respectively provided at both ends of the first arm 30 and the second arm 40, and the first pivot hole 11 and the first connecting hole 31 are connected by a first rotating member 70 to complete the rotational connection between the first connecting seat 10 and the first arm 30, and the second connecting seat 20 and the first arm 30, and the second pivot hole 12 and the second connecting hole 43 are connected by a second rotating member 80 to complete the rotational connection between the first connecting seat 10 and the second arm 40, and the second connecting seat 20 and the second arm 40, wherein the first connecting seat 10, the second connecting seat 20, the first arm 30, the second arm 40, the first rotating member 70 and the second rotating member 80 are spliced to form a quadrilateral structure.

[0047] It is worth mentioning that one end of the elastic member 50 is rotationally connected to the first connecting seat 10, or is rotationally connected to the first rotating member 70 between the first connecting seat 10 and the first arm 30, and the other end of the elastic member 50 is rotationally connected to the adjustment structure 60; or, one end of the elastic member 50 is rotationally connected to the second connecting seat 20, or is rotationally connected to the first rotating member 70 between the second connecting seat 20 and the first arm 30, and the other end of the elastic member 50 is rotationally connected to the adjustment structure 60.

[0048] In addition, when the elastic member 50 is rotatably connected to the first rotating member 70 , a limiting structure, such as an annular groove, may be provided on the first rotating member 70 to prevent the elastic member 50 from moving along the axial direction of the first rotating member 70 .

[0049] Preferably, the adjustment structure 60 includes an adjusting member 61 and a connecting member 62, the connecting member 62 is slidably fitted on the second arm 40, one end of the elastic member 50 is rotatably connected to the first connecting seat 10, one end of the connecting member 62 is rotatably connected to the other end of the elastic member 50, and the other end of the connecting member 62 is connected to the adjusting member 61, and the connecting member 62 is driven to slide by the adjusting member 61.

[0050] In this embodiment, through the sliding fit between the connecting member 62 and the second arm 40, when the adjusting member 61 adjusts the expansion and contraction amount of the elastic member 50, the expansion and contraction direction of the elastic member 50 is always consistent with the axial direction of the elastic member 50, thereby avoiding deflection or twisting of the elastic member 50, thereby improving the reliability of the expansion and contraction amount adjustment on the elastic member 50.

[0051] It is worth mentioning that in order to facilitate the adjustment of the adjusting member 61, the adjusting member can preferably be selected as a screw structure, and the threaded end of the screw is threadedly connected to the connecting member 62. The expansion and contraction amount of the elastic member 50 can be changed by rotating the screw clockwise or counterclockwise.

[0052] Preferably, the adjusting member 61 is movably connected to the second arm 40 .

[0053] Further preferably, the adjustment structure 60 also includes an adjustment member support 63, which is fixed on the second arm 40, and the adjustment member 61 is rotatably connected to the adjustment member support 63, or the adjustment member support 63 is provided with a through hole 631 for the adjustment member 61 to pass through and for the adjustment member 61 to rotate.

[0054] In this embodiment, an adjusting member support 63 is provided on the second arm 40, and the adjusting member support 63 is close to one side of the second connecting seat 20, wherein one end of the adjusting member 61 passes through the through hole 631 on the adjusting member support 63 and is threadedly engaged with the connecting member 62, and the other end of the adjusting member 61 is snapped into engagement with the adjusting member support 63, thereby preventing the elastic member 50 from automatically retracting to a naturally extended state, thereby improving the reliability of the elastic member 50 when adjusting its telescopic amount.

[0055] In addition, the adjustment member support 63 is generally integrally provided with the second arm 40, and is generally formed by bending the end of one of the side walls of the second arm 40. This creates an escape notch 42 on the second arm 40, leaving the end of the adjustment member 61 that engages with the adjustment member support 63 exposed. If the user wishes to adjust the extension and contraction of the elastic member 50, they can simply insert a wrench through the escape notch 42 and engage the adjustment member 61 to adjust the extension and contraction of the elastic member 50. This allows the user to adjust the extension and contraction of the elastic member 50 from the outside of the support arm, which is convenient and flexible.

[0056] Preferably, the connecting member 62 includes a first connecting part 621, a second connecting part 622, and a third connecting part 623, one end of the second connecting part 622 is connected to one end of the first connecting part 621, the other end of the second connecting part 622 is connected to one end of the third connecting part 623, and a connecting column 624 rotatably connected to the elastic member 50 is connected between the other end of the first connecting part 621 and the other end of the third connecting part 623.

[0057] It is worth mentioning that the connecting member 62 is U-shaped, and the first connecting part 621 and the third connecting part 623 are respectively located on both sides of the open end of the connecting member 62, and the second connecting part 622 is located at the closed end of the connecting member 62, wherein a connecting column 624 is provided between the first connecting part 621 and the third connecting part 623, and the connecting column 624 is rotatably connected to the elastic member 50, and the second connecting part 622 forms a threaded fit with the adjusting member 61.

[0058] In addition, since the elastic member 50 and the connecting post 624 are rotatably connected, a limiting structure such as an annular groove can also be provided on the connecting post 624 to prevent the elastic member 50 from moving along the axis of the connecting post 624 .

[0059] The two ends of the elastic member 50 are respectively provided with a hook-like structure, and one end of the elastic member 50 is rotatably connected to the first rotating member 70 , and the other end of the elastic member 50 is rotatably connected to the connecting column 624 .

[0060] Further preferably, two sliding parts 6241 are respectively provided at both ends of the connecting column 624 , and sliding grooves 41 are respectively provided on both sides of the second arm 40 , and the two sliding parts 6241 are respectively slidably fitted in the two sliding grooves 41 .

[0061] It is worth mentioning that the two sliding parts 6241 can be integrally arranged with the connecting column 624, generally by increasing the length of the connecting column 624 so that the two ends of the connecting column 624 pass through the slide grooves 41 on both sides and extend out, so that a sliding fit is formed between the connecting member 62 and the second arm 40; or the two sliding parts 6241 are separately arranged from the connecting column 624, and are connected to the two ends of the connecting column 624 through corresponding connection methods, such as fasteners or welding, wherein the two sliding parts 6241 pass through the slide grooves 41 on the corresponding sides and extend out, so that a sliding fit is formed between the connecting member 62 and the second arm 40.

[0062] It should be noted that, in the present utility model, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly defined. The terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0063] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0064] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A support arm, characterized in that: include: A first connecting seat (10), a second connecting seat (20), a first arm (30) and a second arm (40), wherein the first connecting seat (10) and the second connecting seat (20) are rotatably connected to the first arm (30) and the second arm (40) respectively, forming a quadrilateral structure; an elastic member (50) for providing a supporting force for the supporting arm; one end of the elastic member (50) is connected to one of the first connecting seat (10) and the second connecting seat (20); An adjusting structure (60) is mounted on one of the first arm (30) and the second arm (40) to adjust the expansion and contraction of the elastic member (50). The adjusting structure (60) is rotatably connected to the other end of the elastic member (50).

2. The support arm according to claim 1, wherein: The elastic member (50) is a tension spring; one end of the elastic member (50) is rotatably connected to the first connecting seat (10) or the rotatable connection between the first connecting seat (10) and the first arm (30), and the adjustment structure (60) is installed on the second arm (40).

3. The support arm according to claim 2, characterized in that The adjusting structure (60) includes an adjusting member (61) and a connecting member (62), wherein the connecting member (62) is slidably fitted on the second arm (40), one end of the elastic member (50) is rotatably connected to the first connecting seat (10), one end of the connecting member (62) is rotatably connected to the other end of the elastic member (50), and the other end of the connecting member (62) is connected to the adjusting member (61), and the connecting member (62) is driven to slide by the adjusting member (61).

4. The support arm according to claim 3, characterized in that The adjusting member (61) is a screw, and the threaded end of the screw is threadedly connected to the connecting member (62).

5. The support arm according to claim 3, characterized in that: The adjusting member (61) is movably connected to the second arm (40).

6. The support arm according to claim 3, characterized in that: The adjusting structure (60) further comprises an adjusting member support (63), wherein the adjusting member support (63) is fixed on the second arm (40), and the adjusting member (61) is rotatably connected to the adjusting member support (63); Alternatively, the adjustment structure (60) further comprises an adjustment member support (63), wherein the adjustment member support (63) is fixed on the second arm (40), and the adjustment member support (63) is provided with a through hole (631) for the adjustment member (61) to pass through and for the adjustment member (61) to rotate.

7. The support arm according to claim 3, characterized in that: The connecting member (62) includes a first connecting portion (621), a second connecting portion (622), and a third connecting portion (623), one end of the second connecting portion (622) is connected to one end of the first connecting portion (621), the other end of the second connecting portion (622) is connected to one end of the third connecting portion (623), and a connecting column (624) rotatably connected to the elastic member (50) is connected between the other end of the first connecting portion (621) and the other end of the third connecting portion (623).

8. The support arm according to claim 7, characterized in that Two sliding parts (6241) are respectively provided at both ends of the connecting column (624), and sliding grooves (41) are respectively provided on both sides of the second arm (40), and the two sliding parts (6241) are respectively slidably fitted in the two sliding grooves (41).

9. The support arm according to claim 2, characterized in that: The second arm (40) is provided with an escape notch (42) for inserting an adjusting wrench.

10. A display stand, characterized in that: The support arm comprises the support arm according to any one of claims 1 to 9.

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