Locking support arm and monitor stand

Abstract

This utility model belongs to the field of bracket technology and discloses a locking support arm and a monitor bracket. The locking support arm includes a support base, a connector, a bracket arm, and a locking component. The bracket arm includes a lower arm and an upper arm. The two ends of the lower arm are respectively hinged to the support base and the connector along the length direction of the bracket arm, and the two ends of the upper arm are respectively hinged to the support base and the connector along the length direction of the bracket arm. The locking component is disposed between the support base and the bracket arm or between the connector and the bracket arm. The locking component has a locked state and an unlocked state. When in the unlocked state, the connector can move up and down relative to the support base. When in the locked state, the locking component can prevent the connector from moving up and down. The monitor bracket adopts the above-mentioned locking support arm to achieve upward or downward locking, improving the overall user experience.

Description

Technical Field

[0001] This utility model relates to the field of bracket technology, and in particular to a locking support arm and a monitor bracket. Background Technology

[0002] In medical, factory, and other work environments, some monitor stands are wall-mounted and equipped with keyboard trays for operation. Currently, monitor stands in these scenarios often use a self-balancing arm structure to support the keyboard tray. However, in actual use, keyboard operation generates continuous downward pressure, causing the self-balancing arm structure to drop, thus requiring frequent height adjustments. This design causes inconvenience and affects the user experience. Utility Model Content

[0003] The purpose of this invention is to provide a locking support arm and monitor bracket that can be locked upwards or downwards, thereby improving the overall user experience.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] Locking support arm, comprising:

[0006] The support base has a first hinge point and a second hinge point;

[0007] The connector has a third hinge point and a fourth hinge point;

[0008] The support arm includes a lower arm and an upper arm. The two ends of the lower arm are respectively hinged to the first hinge point and the third hinge point along the length direction of the support arm. The two ends of the upper arm are respectively hinged to the second hinge point and the fourth hinge point along the length direction of the support arm.

[0009] A locking component is disposed between the support base and the bracket arm or between the connector and the bracket arm. The locking component has a locked state and an unlocked state. When in the unlocked state, the connector can move up and down relative to the support base. When in the locked state, the locking component can prevent the connector from moving up and down.

[0010] In some embodiments, the locking assembly includes a first connector and a locking member. The locking support arm has a mounting hole that passes through the support arm and the connector. The locking member passes through the mounting hole and is connected to the first connector. In the locked state, the locking member cooperates with the first connector to press the support arm and the connector together. In the unlocked state, the locking member cooperates with the first connector to release the support arm and the connector together.

[0011] In some embodiments, the mounting hole includes a first hole segment disposed on one side of the upper arm, the first connector is installed in the first hole segment, and the first connector and the upper arm have a first circumferential limiting structure.

[0012] In some embodiments, the first circumferential limiting structure includes at least one first protrusion and a first limiting groove having the same number and shape as the first protrusion, wherein one of the first protrusion and the first limiting groove is disposed in the first hole segment of the upper arm, and the other is disposed on the first connector.

[0013] And / or,

[0014] The first connector is provided with a first end cap, and the upper arm is provided with a first groove for accommodating the first end cap.

[0015] In some embodiments, the mounting hole includes a second hole segment disposed on the other side of the upper arm; the locking assembly further includes a second connector, the second connector having a first through hole for the locking member to pass through, the second connector being installed in the second hole segment, and the second connector and the second hole segment having a second circumferential limiting structure;

[0016] And / or,

[0017] The locking assembly further includes a second connector, which has a second end cap, and the upper arm has a second groove for accommodating the second end cap.

[0018] In some embodiments, the mounting hole further includes a third hole segment disposed on the connector head, the third hole segment having a first conical surface therein, and the first connector having a first abutting surface that mates with the first conical surface.

[0019] In some embodiments, the third hole segment is further provided with a second conical surface, and the second connector is provided with a second abutment surface that mates with the second conical surface.

[0020] In some embodiments, the locking member includes a screw, a handle, and a crimping member. The crimping member has a second through hole, and the screw is slidably engaged with the second through hole. One end of the screw is rotatably connected to the handle, and the other end is connected to the first connecting member. The handle has a second protrusion. When the second protrusion abuts against the crimping member, the locking component is in the locked state. When the second protrusion is disengaged from the crimping member, the locking component is in the unlocked state.

[0021] In some embodiments, the locking support arm further includes an elastic element connected between the support arm and the support base, between the support arm and the connector, or between the lower arm and the upper arm, for supporting the connector to hover.

[0022] A monitor stand is also provided, comprising:

[0023] The locking support arm as described above;

[0024] A fixed support arm is provided at one end with a clamping seat and at the other end with a support seat.

[0025] The beneficial effects of this utility model are:

[0026] When it is necessary to adjust the hovering position of the connector, the locking component can be adjusted to the unlocked state. In this state, the hovering height of the connector can be adjusted. Then, the locking component can be adjusted to the locked state to limit the raising and lowering of the connector. When the connector is subjected to appropriate pressure, the locking component can prevent the connector from descending, and the connector can still maintain the above hovering position. There is no need to frequently adjust the hovering height, which improves the applicability and user experience. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a monitor bracket with a handle when the locking support arm of this utility model is used;

[0028] Figure 2 yes Figure 1 Cross-sectional view;

[0029] Figure 3 This is a partial exploded view of the locking support arm of this utility model;

[0030] Figure 4 This is a schematic diagram of the locking support arm of this utility model, showing the first connecting member and the second connecting member;

[0031] Figure 5 yes Figure 4 Enlarged view of point A in the middle;

[0032] Figure 6 This is a partial cross-sectional view of the locking support arm of this utility model;

[0033] Figure 7 yes Figure 6 Enlarged view at point B in the middle;

[0034] Figure 8 This is a cross-sectional view of the locking component of the locking support arm of this utility model;

[0035] Figure 9 This is a schematic diagram of a monitor bracket when the locking support arm of this utility model uses bolts;

[0036] Figure 10 yes Figure 9 A partial cross-sectional view.

[0037] In the picture:

[0038] 1. Support base; 11. First hinge point; 12. Second hinge point;

[0039] 2. Connector; 21. Third hinge point; 22. Fourth hinge point;

[0040] 3. Support arm; 31. Lower arm; 32. Upper arm; 311. First groove; 312. Second groove;

[0041] 4. Locking assembly; 41. First connector; 411. First end cap; 412. First abutment surface; 413. Threaded hole; 42. Locking element; 421. Screw; 422. Handle; 4221. Second protrusion; 423. Pressing element; 4231. Second through hole; 43. Second connector; 431. Second end cap; 432. First through hole; 433. Second abutment surface;

[0042] 5. Installation hole; 51. First hole section; 52. Second hole section; 53. Third hole section; 531. First conical surface; 532. Second conical surface;

[0043] 6. First circumferential limiting structure; 61. First protrusion; 62. First limiting groove;

[0044] 7. Elastic components;

[0045] 8. Fix the support arm;

[0046] 9. Clamping seat. Detailed Implementation

[0047] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0048] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0049] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0050] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0051] like Figures 1 to 10 As shown, this application provides a locking support arm, which includes a support base 1, a connector 2, a bracket arm 3, and a locking assembly 4. The support base 1 has a first hinge point 11 and a second hinge point 12; the connector 2 has a third hinge point 21 and a fourth hinge point 22. The connector 2 is used to fix an external object to be fixed or a clamp for the external object to be fixed. The external object to be fixed may be, but is not limited to, a microphone, a display, or a mobile device; the bracket arm 3 includes a lower arm 31 and an upper arm 32. The two ends of the lower arm 31 are respectively hinged to the first hinge point 11 and the third hinge point 21 along the length direction of the bracket arm 3, and the two ends of the upper arm 32 are respectively hinged to the second hinge point 12 and the fourth hinge point 22 along the length direction of the bracket arm 3, so that the connector 2, the upper arm 32, the lower arm 31, and the support base 1 form a quadrilateral linkage structure; exemplaryly, the upper arm 32 and the lower arm 31 adopt a groove-shaped structure. The locking component 4 is disposed between the support base 1 and the bracket arm 3 or between the connector 2 and the bracket arm 3. The locking component 4 has a locked state and an unlocked state. When it is in the unlocked state, the connector 2 can move up and down relative to the support base 1. When it is in the locked state, the locking component 4 can prevent the connector 2 from moving up and down.

[0052] When it is necessary to adjust the hovering position of connector 2, the locking component 4 can be adjusted to the unlocked state. In this state, the hovering height of connector 2 can be adjusted. Then, the locking component 4 can be adjusted to the locked state to limit the rise and fall of connector 2. That is, when connector 2 is subjected to appropriate pressure, the locking component 4 can prevent connector 2 from falling. Connector 2 can maintain the above hovering position without frequent adjustment of the hovering height, thus improving applicability and user experience.

[0053] like Figure 3 As shown, in some embodiments, the locking component 4 includes a first connector 41 and a locking member 42, and the locking bracket has a mounting hole 5 that passes through the bracket arm 3 and the connector 2 along the width direction of the bracket arm 3. The locking member 42 can pass through the mounting hole 5 and is connected to the first connector 41. When the locking component 4 is in the locked state, the locking member 42 cooperates with the first connector 41 to press the bracket arm 3 and the connector 2; and when the locking component 4 is in the unlocked state, the locking member 42 cooperates with the first connector 41 to release the bracket arm 3 and the connector 2.

[0054] like Figure 7 and Figure 8 As shown, specifically, the locking member 42 includes a screw 421, a handle 422, and a crimping member 423. The crimping member 423 is provided with a second through hole 4231. The screw 421 passes through the second through hole 4231 and slides in cooperation with it. One end of the screw 421 is rotatably connected to the handle 422, and the other end of the screw 421 passes through a mounting hole 5 and is connected to the first connecting member 41. In the current embodiment, the first connecting member 41 is provided with a threaded hole 413 that can be screwed onto the screw 421. The handle 422 is provided with a second protrusion 4221. The crimping member 423 and the first connecting member 41 are located on both sides of the support arm 3 along the width direction. The screw 421 passes through the mounting hole 5 and connects to the first connecting member 41. When the handle 422 is driven, the second protrusion 4221 and the crimping member 423 abut against each other. The crimping member 423 and the first connecting member 41 can jointly press the support arm 3 and the connector 2. At this time, the locking component 4 is in the locked state, so as to restrict the rise or fall of the connector 2. When the handle 422 is driven again to separate the second protrusion 4221 from the crimping member 423, the first connecting member 41 and the crimping member 423 release the support arm 3. At this time, the locking component 4 is in the unlocked state, and the connector 2 can rise or fall.

[0055] More specifically, the mounting hole 5 passes through the upper arm 32 and the connector 2; the upper arm 32 adopts a groove-shaped structure (or a U-shaped structure), and the connector 2 is clamped between the opposite sidewalls of the groove-shaped structure. The mounting hole 5 is located at the fourth hinge point 22. It can be understood that the mounting hole 5 can also be located at the first hinge point 11, the second hinge point 12, or the third hinge point 21, so that the screw 421 forms a pivot.

[0056] like Figure 3 and Figure 7 As shown, more specifically, the mounting hole 5 includes a first hole segment 51, a second hole segment 52, and a third hole segment 53. The first hole segment 51 is located on one side wall of the upper arm 32, the second hole segment 52 is located on the other side wall of the upper arm 32, and the third hole segment 53 is located on the connector 2. A first connector 41 extends through the first hole segment 51 into the third hole segment 53. The third hole segment 53 includes a first tapered segment with a first tapered surface 531. The larger diameter end of the first tapered segment is located on the opening side of the third hole segment 53, and the smaller diameter end is located inside the third hole segment 53. The first connector 41 extends through the first hole segment 51 into the third hole segment 53. To accommodate the first tapered segment, the first connector 41 has a tapered first abutment surface 412 to mate with the first tapered surface 531; thus, when the drive handle 422 abuts... When the crimping member 423 is engaged, the first connector 41 can move along the axial direction of the mounting hole 5 towards the direction of extending into the third hole section 53. When the drive handle 422 abuts against the crimping member 423, the first conical surface 531 abuts against the first contact surface 412, thereby increasing the friction force to lock the connector 2. When the drive handle 422 is disengaged from the crimping member 423, the first connector 41 can move along the axial direction of the mounting hole 5 towards the direction of moving out of the third hole section 53, the first conical surface 531 disengages from the first contact surface 412, thereby unlocking the connector 2.

[0057] like Figure 3 As shown, to prevent the first connector 41 from rotating circumferentially relative to the upper arm 32, the first connector 41 and the upper arm 32 have a first circumferential limiting structure 6. Specifically, the first circumferential limiting structure 6 includes at least one first protrusion 61 and a first limiting groove 62 equal in number to the first protrusion 61. One of the first protrusion 61 and the first limiting groove 62 is disposed within the first hole segment 51, and the other is disposed on the first connector 41. In the current embodiment, the first protrusion 61 is disposed on the first connector 41, and a plurality of first protrusions 61 are disposed circumferentially along the first connector 41. A plurality of first limiting grooves 62 are disposed circumferentially along the inner part of the first hole segment 51. The first protrusions 61 are correspondingly embedded in the first limiting grooves 62, thereby restricting the circumferential rotation of the first connector 41 relative to the upper arm 32.

[0058] In use, by driving and pressing the rotating handle 422, the second protrusion 4221 on the handle 422 abuts against or moves away from the pressing member 423, so that the pressing member 423 and the upper arm 32 are pressed together or separated, thereby driving the screw 421 along the axial direction of the mounting hole 5, so that the first connecting member 41 moves along the axial direction of the mounting hole 5, and thus the first abutting surface 412 and the first conical surface 531 are pressed together or separated.

[0059] Since the first connector 41 cannot rotate circumferentially, when driving the handle 422, rotating the handle 422 can drive the screw 421 to rotate along its own axis, thereby utilizing the screwed connection between the first connector 41 and the screw 421 to drive the first connector 41. And based on a rotatable method, such as... Figure 9 and Figure 10 As shown, in some alternative embodiments, the locking member 42 may be a bolt screwed onto the first connector 41, with the bolt head abutting against the upper arm 32.

[0060] like Figure 7 As shown, to prevent the first connector 41 from detaching from the first hole section 51 and entering the third hole section 53, a first end cap 411 is provided on the first connector 41. The first end cap 411 is located at the large diameter end of the first connector 41, and the size of the first end cap 411 is larger than that of the large diameter end of the first connector 41. The upper arm 32 is provided with a first groove 311 to accommodate the first end cap 411. The first hole section 51 is opened at the bottom of the first groove 311, so that the first end cap 411 abuts against the first groove 311, preventing the first connector 41 from detaching from the first hole section 51 and entering the third hole section 53. At the same time, the first end cap 411 also increases the contact area between the first connector 41 and the upper arm 32, making it more stable.

[0061] To enhance the locking effect, in some embodiments, the locking assembly 4 further includes a second connector 43, which also has a tapered second abutment surface 433. The third hole section 53 further includes a second tapered section, with the small-diameter ends of the first tapered section and the second tapered section facing each other. The second tapered section has a second tapered surface 532 that mates with the second abutment surface 433. Thus, the second connector 43 is inserted into the third hole section 53 through the second hole section 52, allowing the second tapered surface 532 to abut or disengage from the second abutment surface 433. This abutment between the second tapered surface 532 and the second abutment surface 433 increases friction and improves the locking degree. To allow the screw 421 to pass freely, the second connector 43 is provided with a first through hole 432.

[0062] Specifically, to prevent the second connector 43 from rotating circumferentially relative to the upper arm 32, the second connector 43 and the second hole segment 52 have a second circumferential limiting structure. The second circumferential limiting structure includes at least one third protrusion and a second limiting groove equal in number to the third protrusion. One of the third protrusion and the second limiting groove is disposed within the second hole segment 52, and the other is disposed on the first connector 41. Exemplarily, multiple third protrusions and second limiting grooves are also provided, and their specific distribution is the same as that of the first circumferential limiting structure 6, which will not be described again.

[0063] Similarly, a second end cap 431 is provided on the second connector 43. The second end cap 431 is located at one end of the larger diameter of the second connector 43. The first through hole 432 penetrates the second end cap 431. The upper arm 32 is provided with a second groove 312. The second hole section 52 is opened at the bottom of the groove 312. The second end cap 431 is accommodated in the second groove 312 to prevent the second connector 43 from disengaging from the second hole section 52 and entering the third hole section 53. When the second connector 43 is provided, in the locked state, the crimping member 423 abuts against the second end cap 431 of the second connector 43, and thus indirectly abuts against the upper arm 32. That is, during the transition between the locked and unlocked states, the second end cap 431 is tightened or loosened by the second protrusion 4221 on the handle 422 or the bolt head on the bolt, so that the second conical surface 532 can abut against or separate from the second abutting surface 433.

[0064] In addition, such as Figure 2 As shown, the locking support arm 3 also includes an elastic element 7, which is connected between the support arm 3 and the support base 1, between the support arm 3 and the connector 2, or between the lower arm 31 and the upper arm 32, to support the connector 2 in a suspended position. The elastic element 7 can be, but is not limited to, a compression spring or a pneumatic spring. In the current embodiment, the elastic element 7 is a pneumatic spring, with one end connected to the support base 1 and the other end connected to the upper arm 32.

[0065] like Figure 1 and Figure 9 As shown, this application also provides a monitor stand, which includes the locking support arm and the fixed support arm 8 mentioned above. One end of the fixed support arm 8 is provided with a clamping seat 9, which can be clamped to an external fixed object. The external fixed object can be, but is not limited to, a desktop or a wall. The other end of the fixed support arm 8 is connected to the support seat 1, thereby enabling upward or downward locking and improving the overall user experience.

[0066] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A locking support arm characterized by, include: The support base (1) has a first hinge point (11) and a second hinge point (12); The connector (2) has a third hinge point (21) and a fourth hinge point (22); The support arm (3) includes a lower arm (31) and an upper arm (32). The two ends of the lower arm (31) are respectively hinged to the first hinge point (11) and the third hinge point (21) along the length direction of the support arm (3). The two ends of the upper arm (32) are respectively hinged to the second hinge point (12) and the fourth hinge point (22) along the length direction of the support arm (3). A locking component (4) is disposed between the support base (1) and the bracket arm (3) or between the connector (2) and the bracket arm (3). The locking component (4) has a locked state and an unlocked state. When in the unlocked state, the connector (2) can move up and down relative to the support base (1). When in the locked state, the locking component (4) can prevent the connector (2) from moving up and down.

2. The locking support arm of claim 1, wherein, The locking assembly (4) includes a first connector (41) and a locking member (42). The locking support arm has a mounting hole (5) that passes through the support arm (3) and the connector (2). The locking member (42) passes through the mounting hole (5) and is connected to the first connector (41). In the locked state, the locking member (42) cooperates with the first connector (41) to press the support arm (3) and the connector (2). In the unlocked state, the locking member (42) cooperates with the first connector (41) to release the support arm (3) and the connector (2).

3. The locking support arm of claim 2, wherein, The mounting hole (5) includes a first hole segment (51), which is disposed on one side of the upper arm (32). The first connector (41) is installed in the first hole segment (51), and the first connector (41) and the upper arm (32) have a first circumferential limiting structure (6).

4. The locking support arm of claim 3, wherein, The first circumferential limiting structure (6) includes at least one first protrusion (61) and a first limiting groove (62) that is the same number and has the same shape as the first protrusion (61). One of the first protrusion (61) and the first limiting groove (62) is disposed in the first hole section (51) of the upper arm (32), and the other is disposed on the first connector (41). And / or, The first connector (41) is provided with a first end cap (411), and the upper arm (32) is provided with a first groove (311) for accommodating the first end cap (411).

5. The locking support arm of claim 2, wherein, The mounting hole (5) includes a second hole segment (52), which is disposed on the other side of the upper arm (32); the locking assembly (4) further includes a second connector (43), which has a first through hole (432) through which the locking member (42) passes, and is installed in the second hole segment (52). The second connector (43) and the second hole segment (52) have a second circumferential limiting structure. And / or, The locking assembly (4) further includes a second connector (43), on which a second end cap (431) is provided, and on the upper arm (32) a second groove (312) for accommodating the second end cap (431).

6. The locking support arm according to claim 5, characterized in that, The mounting hole (5) further includes a third hole section (53), which is disposed on the connector (2). The third hole section (53) has a first conical surface (531) inside, and the first connector (41) has a first abutting surface (412) that mates with the first conical surface (531).

7. The locking support arm of claim 6, wherein, The third hole section (53) is also provided with a second conical surface (532), and the second connector (43) is provided with a second abutting surface (433) that cooperates with the second conical surface (532).

8. The locking support arm of claim 2, wherein, The locking component (42) includes a screw (421), a handle (422), and a pressing component (423). The pressing component (423) has a second through hole (4231). The screw (421) is slidably engaged with the second through hole (4231). One end of the screw (421) is rotatably connected to the handle (422), and the other end is connected to the first connecting component (41). The handle (422) has a second protrusion (4221). When the second protrusion (4221) abuts against the pressing component (423), the locking component (4) is in the locked state. When the second protrusion (4221) is separated from the pressing component (423), the locking component (4) is in the unlocked state.

9. The locking support arm of any of claims 1-8, wherein, The locking support arm also includes an elastic element (7), which is connected between the support arm (3) and the support base (1), between the support arm (3) and the connector (2), or between the lower arm (31) and the upper arm (32) to support the connector (2) to be suspended.

10. A display support characterized by include: The locking support arm as described in any one of claims 1 to 9; A fixed support arm (8) is provided with a clamping seat (9) at one end and the other end is connected to the support seat (1).

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