A support device and a floor stand

Abstract

This utility model relates to the field of support technology, specifically to a support device and a floor-standing support. The self-locking rotating structure includes a first locking structure and a second locking structure. The first locking structure is fixedly connected to a first articulated arm, and its outer contour is provided with multiple first positioning portions. The second locking structure is slidably disposed with a second articulated arm, and includes a second positioning portion that engages and matches with the first positioning portions. When the second locking structure is locked, the second positioning portion slides to a first position and engages and locks with the first positioning portion. When the second locking structure is unlocked, the second positioning portion slides to a second position and moves away from the first positioning portion. This utility model, through a driving mechanism, simultaneously controls the unlocking of two or more self-locking rotating structures, thereby realizing rotation between multiple articulated arms and achieving a wide range of rotation at multiple angles.

Description

Technical Field

[0001] This utility model relates to the field of support technology, specifically to a support device and a floor support. Background Technology

[0002] Existing support devices typically employ a single articulated arm or a simple linkage structure, which has limited angle adjustment capabilities and often only allows for localized, small-range rotation, making it difficult to meet users' needs for multi-angle, large-range rotation.

[0003] In practical use, when it is necessary to frequently adjust the bracket angle or make large position changes, the existing bracket device cannot provide a convenient operating experience, and multiple parts may need to be operated separately during the adjustment process, which is complicated and inefficient.

[0004] In addition, some support devices lack stability when locked, and are prone to angular displacement due to external forces or vibrations, affecting their performance and reliability. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a support device and a floor support in view of the above-mentioned defects of the prior art, so as to solve the problem that the existing support devices can usually only achieve local small-range rotation, which is difficult to meet the user's needs for multi-angle large-range rotation.

[0006] The technical solution adopted by this utility model to solve its technical problem is: to provide a support device, comprising:

[0007] Multiple articulated arms;

[0008] A self-locking rotation structure is provided between two adjacent articulated arms, and the two adjacent articulated arms are rotatably connected and defined as the first articulated arm and the second articulated arm.

[0009] Drive mechanism;

[0010] The self-locking rotation structure includes a first locking structure and a second locking structure. The first locking structure is fixedly connected to the first joint arm, and the outer contour of the first locking structure is provided with a plurality of first positioning parts. The second locking structure is slidably disposed with the second joint arm, and the second locking structure includes a second positioning part that is engaged and matched with the first positioning part. When the second locking structure is locked, the second positioning part slides to a first position and engages and locks with the first positioning part. When the second locking structure is unlocked, the second positioning part slides to a second position and moves away from the first positioning part.

[0011] The driving mechanism includes a driving part and a connecting rope. The number of connecting ropes corresponds to the number of second lock structures. The driving part is connected to the corresponding second lock structure through the connecting rope and drives the second lock structure to move between a first position and a second position.

[0012] A preferred embodiment is that the driving mechanism further includes a first elastic element, the second joint arm includes a second guide cavity, the second positioning part is slidably disposed in the second guide cavity, the first elastic element is disposed between the second positioning part and the second joint arm, and the first elastic element presses against the second positioning part in a normal state so that it is in a first position.

[0013] A preferred embodiment is as follows: the first articulated arm includes a first arm rod and a first joint, the first joint and the first arm rod are fixedly disposed, and the first locking structure is fixedly disposed on the first joint; the second articulated arm includes a second arm rod and a second joint, the second joint and the second arm rod are fixedly disposed, and the second joint is rotatably disposed with respect to the first joint.

[0014] A preferred embodiment is as follows: the first joint includes a first connecting portion and a first rotating portion, the second joint includes a second connecting portion and a second rotating portion, the first connecting portion is fixedly connected to the first arm and the first rotating portion, the second connecting portion is fixedly connected to the second arm and the second rotating portion; and the first rotating portion includes a first pivot hole, the second rotating portion includes a second pivot hole, and the support device further includes a first pivot hole passing through the first pivot hole and the second pivot hole.

[0015] A preferred embodiment is that the first lock structure is a gear structure, the first positioning part is a tooth groove between the teeth of the gear structure, and the second positioning part includes a convex tooth structure that meshes with the gear structure.

[0016] A preferred embodiment is as follows: the second locking structure further includes a slider and a guide post disposed at the rear end of the slider, the tooth structure is disposed at the front end of the slider, and the first elastic element is a first spring sleeved on the guide post; the slider is limited and slidably disposed in the second guide cavity, and the first elastic element, under normal conditions, causes the tooth structure to pass through the second guide cavity and insert into the tooth groove of the gear structure.

[0017] A preferred embodiment is that the drive unit includes a moving part and a moving track disposed in the articulated arm, and the connecting rope is connected to the moving part and the second positioning part respectively. The moving part moves on the moving track and drives the second positioning part from the first position to the second position through the connecting rope to achieve locking.

[0018] A preferred embodiment is as follows: the driving part includes a pressing part and a second elastic member; the upper end of the moving part is rotatably disposed on the pressing part; the lower end of the moving part is slidably disposed on the moving track; the moving part is inclined and the lower end is disposed further away from the second positioning part than the upper end; the second elastic member drives the pressing part to return to a non-pressing state; wherein the pressing part extends to the side of the joint arm.

[0019] A preferred embodiment is as follows: the articulated arms are provided in three parts, defined as a front articulated arm, a middle articulated arm, and a rear articulated arm; the self-locking rotation structure includes a front self-locking rotation structure disposed between the front articulated arm and the middle articulated arm, and a rear self-locking rotation structure disposed between the middle articulated arm and the rear articulated arm; the connecting rope includes a first connecting rope and a second connecting rope, one end of which is fixedly disposed on the drive unit, the drive unit being disposed on the front articulated arm; the other end of the first connecting rope is connected to a second locking structure on the front articulated arm; the second connecting rope passes sequentially through the front articulated arm and the front self-locking rotation structure, and is connected to the second locking structure of the middle articulated arm.

[0020] The technical solution adopted by this utility model to solve its technical problem is: to provide a floor support, including a support device, a support base disposed at one end of the support device, and a connecting structure disposed at the other end of the support device.

[0021] The beneficial effect of this utility model is that, compared with the prior art, this utility model uses a drive mechanism to simultaneously control the unlocking of two or more self-locking rotation structures, thereby realizing the rotation between multiple joint arms and achieving a wide range of rotation at multiple angles. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the support device of this utility model;

[0024] Figure 2 This is a schematic diagram of the self-locking rotation structure of this utility model;

[0025] Figure 3 This is an exploded structural diagram of the self-locking rotating structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the second positioning part of this utility model engaging with the first positioning part and being in the first position;

[0027] Figure 5 This is a schematic diagram of the structure of the second positioning part of this utility model, which is far away from the first positioning part and is located in a second position;

[0028] Figure 6 This is an exploded structural diagram of the drive mechanism of this utility model;

[0029] Figure 7 This is a schematic diagram of the back structure of the pressing part of this utility model;

[0030] Figure 8 This is a partially enlarged exploded view of the drive mechanism of this utility model;

[0031] Figure 9 This is a schematic diagram of the structure of the second rotating part of this utility model;

[0032] Figure 10 This is a schematic diagram of the rear structure of the second positioning part of this utility model;

[0033] Figure 11 This is a structural schematic diagram of the support device for multiple articulated arms of this utility model;

[0034] Figure 12 This is a schematic diagram of the layout structure of the first connecting rope and the second connecting rope of this utility model. Detailed Implementation

[0035] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0036] like Figures 1 to 10 As shown, this utility model provides a preferred embodiment of the support device.

[0037] A support device includes multiple articulated arms 100. A self-locking rotation structure 200 is provided between two adjacent articulated arms 100, and the two adjacent articulated arms 100 are rotatably connected. Two of the articulated arms 100 are defined as a first articulated arm 101 and a second articulated arm 102 for ease of subsequent description. The support device also includes a drive mechanism 300. The self-locking rotation structure 200 includes a first locking structure 210 and a second locking structure 220. The first locking structure 210 is fixedly connected to the first articulated arm 101, and its outer contour is provided with multiple first positioning portions 211. The second locking structure 220 slides against the second articulated arm 102. The second lock structure 220 is configured to engage with and match the first positioning part 211. When the second lock structure 220 is locked, the second positioning part 221 slides to a first position and engages with and locks the first positioning part 211. When the second lock structure 220 is unlocked, the second positioning part 221 slides to a second position and moves away from the first positioning part 211. The drive mechanism 300 includes a drive part and a connecting rope 400. The number of connecting ropes 400 corresponds to the number of second lock structures 220. The drive part is connected to the corresponding second lock structure 220 through the connecting ropes 400 and drives the second lock structure 220 to move between the first position and the second position.

[0038] By simultaneously controlling the unlocking of two or more self-locking rotation structures 200 through the drive mechanism 300, rotation between multiple articulated arms 100 can be achieved, enabling a wide range of rotation at multiple angles. (Refer to...) Figure 4The second positioning part 221 is in the first position. When the second locking structure 220 is locked, the second positioning part 221 slides to the first position and engages with the first positioning part 211 to lock. (Reference) Figure 5 The second positioning part 221 is in the second position. When the second locking structure 220 is locked, the second positioning part 221 slides to the second position and moves away from the first positioning part 211.

[0039] Specifically, the first articulated arm 101 serves to support and connect other components, while the second articulated arm 102 is rotatably connected to the first articulated arm 101 and is used for angle adjustment. The first locking structure 210 is fixedly connected to the first articulated arm 101, and its outer contour is provided with multiple first positioning portions 211. The second locking structure 220 is slidably disposed with the second articulated arm 102, and includes a second positioning portion 221 that engages with the first positioning portions 211 of the first locking structure 210. When the second locking structure 220 is locked, the second positioning portion 221 slides to a first position and engages with the first positioning portion 211 to lock. When the second locking structure 220 is unlocked, the second positioning portion 221 slides to a second position and moves away from the first positioning portion 211, thereby releasing the locked state. Through the engagement or disengagement of the second positioning portion 221 with the first positioning portion 211, the locking and unlocking of the bracket is achieved, ensuring stability after angle adjustment.

[0040] By simultaneously controlling the unlocking of two or more self-locking rotation structures 200 through the drive mechanism 400, rotation between multiple articulated arms 100 can be achieved, thereby realizing a wide range of rotation at multiple angles. This meets the user's needs for a wide range of angle adjustments to the bracket. Compared with traditional brackets that can only rotate within a small range, this device has significant advantages in practical application scenarios, such as viewing content displayed in different directions or adapting to changing usage environments.

[0041] The drive unit is connected to the second locking structure 220 and can drive the second locking structure 220 to move between the first position and the second position. Through the operation of the drive unit, the second locking structure 220 can be locked and locked, thereby controlling the angle adjustment of the bracket. In the locked state, the first joint arm 101 and the second joint arm 102 cannot rotate and are fixed. In the locked state, the first joint arm 101 and the second joint arm 102 can rotate.

[0042] Furthermore, the drive mechanism 300 also includes a first elastic element 223, the second joint arm 102 includes a second guide cavity 2312, the second positioning part 221 is slidably disposed in the second guide cavity 2312, and the first elastic element 223 is disposed between the second positioning part 221 and the second joint arm 102. In normal operation, the first elastic element 223 presses against the second positioning part 221 to position it in a first position. The cooperation between the drive part and the first elastic element 223 achieves locking through the drive part, and locking through the first elastic element 223 after the drive part is released.

[0043] In this embodiment, the engagement and locking of the first positioning part 211 and the second positioning part 221 effectively prevents the relative rotation of the first joint arm 101 and the second joint arm 102 in the locked state, ensuring the stability of the bracket during use and avoiding angle changes caused by external forces or vibrations, thereby improving the reliability of the bracket. The drive unit makes the locking and releasing operations simple and intuitive. Users can easily control the sliding of the second locking structure 220 through the drive unit to achieve locking and unlocking functions without complicated operation steps, thus improving the user experience.

[0044] Furthermore, the first elastic element 223, under normal conditions, keeps the first positioning part 211 in the first position, providing preload for the locking state and enhancing the reliability of the locking. Simultaneously, during unlocking, the elastic element assists the first positioning part 211 in quickly resetting, further simplifying the operation process.

[0045] like Figures 2 to 10 As shown, the present invention provides a preferred embodiment of the first joint arm 101 and the second joint arm 102.

[0046] The first articulated arm 101 includes a first arm 110 and a first joint 2101, the first joint 2101 and the first arm 110 are fixedly disposed, and the first locking structure 210 is fixedly disposed on the first joint 2101; the second articulated arm 102 includes a second arm 120 and a second joint 230, the second joint 230 and the second arm 120 are fixedly disposed, and the second joint 230 is rotatably disposed with respect to the first joint 2101.

[0047] Specifically, the first joint 2101 includes a first connecting portion 21011 and a first rotating portion 21012, and the second joint 230 includes a second connecting portion 231 and a second rotating portion 232. The first connecting portion 21011 is fixedly connected to the first arm 110 and the first rotating portion 21012, and the second connecting portion 231 is fixedly connected to the second arm 120 and the second rotating portion 232. The first rotating portion 21012 includes a first pivot hole 212, and the second rotating portion 232 includes a second pivot hole 2311. The support device also includes a first pivot shaft passing through the first pivot hole 212 and the second pivot hole 2311.

[0048] In this embodiment, regarding the first joint 2101, the first connecting portion 21011 is a plug-in structure, used to be plugged into the first arm 110 to fix the first joint 2101 and the first arm 110; the first locking structure 210 is a gear structure, the first positioning portion 211 is a tooth groove between the teeth of the gear structure, and the gear structure is fixedly disposed on one side of the first rotating portion 21012. Regarding the second joint 230, the second connecting portion 231 is a plug-in structure, used to be plugged into the second arm 120 to fix the second joint 230 and the second arm 120; preferably, the second joint 230 includes a first joint shell and a second joint shell, after the first joint shell and the second joint shell are joined together, the rear end forms the second connecting portion 231, and the front end forms a U-shaped second rotating portion 232, and the U-shaped second rotating portion 232 is disposed on both sides of the first rotating portion 21012.

[0049] The second positioning part 221 includes a toothed structure 2211 that meshes with the gear structure, a second guide cavity 2312 is disposed at the second connecting part 231, the second positioning part 221 covers the gear structure, the toothed structure 2211 is slidably disposed in the second connecting part 231, and in the locked state, it passes through the second positioning part 221 and meshes with the gear structure.

[0050] Specifically, the toothed structure 2211 is disposed at the front end of the second positioning part 221. The second positioning part 221 slides in the second guide cavity 2312 to drive the toothed structure 2211 to slide, and the toothed structure 2211 meshes with the gear structure. The second positioning part 221 has an L-shaped structure, with the protrusion of the L-shaped structure on the outer side, and the toothed structure 2211 is disposed at the protrusion of the L-shaped structure. In the locked state, the protrusion of the L-shaped structure can penetrate into the second positioning part 221 to make the toothed structure 2211 mesh with the gear structure. The non-protruding part of the L-shaped structure is close to the first rotating part 21012 in the locked state to achieve sliding avoidance.

[0051] Furthermore, the first elastic element 223 is partially or entirely disposed in the second guide cavity 2312, and the second locking structure 220 also includes a guide post 222 disposed at the rear end of the second positioning part 221. The first elastic element 223 is a first spring sleeved on the guide post 222. The second positioning part 221 is slidably disposed in the second guide cavity 2312. Under normal conditions, the first elastic element 223 causes the tooth structure 2211 to pass through the second guide cavity 2312 and insert into the tooth groove of the gear structure.

[0052] It also includes a third guide cavity 2313, which is connected to the second guide cavity 2312. The cross-sectional area of ​​the third guide cavity 2313 is smaller than that of the second guide cavity 2312. The guide post 222 is inserted into the third guide cavity 2313. It also includes a limiting member 2221, which is disposed between the third guide cavity 2313 and the second guide cavity 2312 and sleeved on the guide post 222. The first spring is disposed between the limiting member 2221 and the second positioning part 221.

[0053] Furthermore, the tooth structure 2211 includes two or more teeth, and the teeth are disposed on an arc surface, the arc surface being consistent with the outermost contour of the gear structure.

[0054] like Figures 6 to 10 As shown, this utility model provides a preferred embodiment of the drive unit.

[0055] The driving unit includes a movable part 320 and a moving track 3321 disposed in the second joint arm 102. The connecting rope 400 is connected to the movable part 320 and the second positioning part 221 respectively. The movable part 320 moves on the moving track 3321 and drives the second positioning part 221 from a first position to a second position through the connecting rope 400 to achieve locking. Further, the driving unit includes a pressing part 310 and a second elastic member 350. The upper end of the movable part 320 is rotatably disposed on the pressing part 310, and the lower end of the movable part 320 is slidably disposed on the moving track 3321. The movable part 320 is inclined, and the lower end is disposed further away from the second positioning part 221 than the upper end. The second elastic member 350 drives the pressing part 310 to return to a non-pressed state. The pressing part 310 extends to the side of the second joint arm 102.

[0056] Specifically, during the pressing of the pressing part 310, since the moving part 320 is tilted forward, it will continue to tilt forward, that is, the lower end of the moving part 320 slides forward along the moving track 3321, i.e., direction A in the figure, to drive the connecting rope 400 forward, thereby moving the second positioning part 221 from the first position to the second position, thus locking. After the pressing part 310 is released, under the action of the second elastic member 350, the pressing part 310 returns to the non-pressed state. At this time, the moving part 320 returns to its original tilted posture and does not pull the connecting rope 400. The second positioning part 221 returns to the first position under the action of the elastic member, thus locking.

[0057] In this embodiment, reference Figure 11 and Figure 12 The articulated arms 100 are provided in three parts, defined as a front articulated arm 511, a middle articulated arm 512, and a rear articulated arm 513. The self-locking rotation structure 200 includes a front self-locking rotation structure 521 disposed between the front articulated arm 511 and the middle articulated arm 512, and a rear self-locking rotation structure 522 disposed between the middle articulated arm 512 and the rear articulated arm 513. The connecting rope 400 includes a first connecting rope 410 and a second connecting rope 420. One end of the first connecting rope 410 and the second connecting rope 420 are fixedly disposed on the driving part. The driving part is disposed on the front articulated arm 511. The other end of the first connecting rope 410 is connected to the second locking structure 220 on the front articulated arm 511. The second connecting rope 420 passes through the front articulated arm 511 and the front self-locking rotation structure 521 in sequence, and is connected to the second locking structure 220 of the middle articulated arm 512.

[0058] Regarding the first connecting rope 410 and the second connecting rope 420, the first connecting rope 410 is connected at both ends to the moving part 320 and the second positioning part 221 of the front self-locking rotating structure 521, respectively. The second connecting rope 420 is connected at both ends to the moving part 320 and the second positioning part 221 of the rear self-locking rotating structure 522, respectively. It possesses sufficient strength and toughness to withstand the tension generated during the driving process. The connecting rope 400 converts the movement of the moving part 320 into a tension force on the second positioning part 221, thereby causing the second positioning part 221 to slide in the second guide cavity 2312, realizing the switching of the second locking structure 220 between the locked and unlocked positions. When the moving part 320 moves on the moving track 3321, the corresponding second positioning part 221 moves accordingly through the traction of the first connecting rope 410 and the second connecting rope 420, thus completing the locking or releasing operation.

[0059] The second connecting rope 420 passes through the cavity 213 inside the first locking structure 210 of the front self-locking rotating structure 521, thereby connecting with the second positioning part 221 of the rear self-locking rotating structure 522.

[0060] Synchronous unlocking is achieved, thereby enabling the front joint arm 511 to rotate relative to the middle joint arm 512, and the middle joint arm 512 to rotate relative to the rear joint arm 513.

[0061] Regarding the moving part 320, the upper end of the moving part 320 is rotatably connected to the pressing part 310. During the pressing process, the lower end of the moving part 320 moves along the moving track 3321. During the movement of the lower end of the moving part 320, the upper end rotating shaft 322 rotates relative to the pressing part 310.

[0062] Furthermore, the drive unit includes a drive housing, a moving track 3321 is provided in the lower shell 332 of the drive housing, and the upper shell 331 of the drive housing is provided with a through opening 3311 for the pressing part 310 to pass through. The pressing part 310 is elastically connected to the lower shell 332 through a second elastic member 350 to achieve automatic recovery after being pressed and released. The lower shell 332 is provided with a sleeve positioning post 3322 that engages with the second elastic member 350. The upper end rotating shaft 322 of the moving part 320 is fixed to the pressing part 310 through a pressing positioning block 323, so that the upper end rotating shaft 322 engages with the rotating shaft groove 312 of the pressing part. At the same time, the pressing part 310 is also provided with a sleeve positioning post 311 that engages with the second elastic member 350. The second elastic member 350 is also a spring structure, and there are two of them to maintain front and rear balance.

[0063] In this utility model, reference Figure 11 It also includes a floor stand, comprising a stand assembly, a support base 620 disposed at one end of the stand assembly, and a connecting structure 610 disposed at the other end of the stand assembly. Further, the connecting structure 610 is disposed at the front end of the front articulated arm 511 for connecting and mounting electronic equipment or an electronic equipment bracket; and the support base 620 can be directly connected to the rear articulated arm 513, or connected to the rear articulated arm 513 via an extension arm 630, the extension arm 630 and the rear articulated arm 513 being extendable and retractable.

[0064] The above description is merely the preferred embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent changes or modifications made in accordance with the claims of this utility model are covered by this utility model.

Claims

1. A support device, characterized in that, include: Multiple articulated arms; A self-locking rotation structure is provided between two adjacent articulated arms, and the two adjacent articulated arms are rotatably connected and defined as the first articulated arm and the second articulated arm. Drive mechanism; The self-locking rotation structure includes a first locking structure and a second locking structure. The first locking structure is fixedly connected to the first joint arm, and the outer contour of the first locking structure is provided with a plurality of first positioning parts. The second locking structure is slidably disposed with the second joint arm, and the second locking structure includes a second positioning part that is engaged and matched with the first positioning part. When the second locking structure is locked, the second positioning part slides to a first position and engages and locks with the first positioning part. When the second locking structure is unlocked, the second positioning part slides to a second position and moves away from the first positioning part. The driving mechanism includes a driving part and a connecting rope. The number of connecting ropes corresponds to the number of second lock structures. The driving part is connected to the corresponding second lock structure through the connecting rope and drives the second lock structure to move between a first position and a second position.

2. The support device according to claim 1, characterized in that: The driving mechanism further includes a first elastic element, the second joint arm includes a second guide cavity, the second positioning part is slidably disposed in the second guide cavity, the first elastic element is disposed between the second positioning part and the second joint arm, and the first elastic element presses against the second positioning part in the normal state so that it is in the first position.

3. The support device according to claim 1 or 2, characterized in that: The first articulated arm includes a first arm and a first joint, the first joint and the first arm are fixedly disposed, and the first locking structure is fixedly disposed on the first joint; the second articulated arm includes a second arm and a second joint, the second joint and the second arm are fixedly disposed, and the second joint is rotatably disposed with respect to the first joint.

4. The support device according to claim 3, characterized in that: The first joint includes a first connecting portion and a first rotating portion, the second joint includes a second connecting portion and a second rotating portion, the first connecting portion is fixedly connected to the first arm and the first rotating portion, the second connecting portion is fixedly connected to the second arm and the second rotating portion; and the first rotating portion includes a first pivot hole, the second rotating portion includes a second pivot hole, and the support device further includes a first pivot hole passing through the first pivot hole and the second pivot hole.

5. The support device according to claim 2, characterized in that: The first lock structure is a gear structure, and the first positioning part is the tooth groove between the teeth of the gear structure; the second positioning part includes a convex tooth structure that meshes with the gear structure.

6. The support device according to claim 5, characterized in that: The second locking structure also includes a slider and a guide post disposed at the rear end of the slider. The tooth structure is disposed at the front end of the slider. The first elastic element is a first spring sleeved on the guide post. The slider is limited and slidably disposed in the second guide cavity. Under normal conditions, the first elastic element causes the tooth structure to pass through the second guide cavity and insert into the tooth groove of the gear structure.

7. The support device according to claim 1 or 2, characterized in that: The drive unit includes a movable part and a movable track disposed in the articulated arm. The connecting rope is connected to the movable part and the second positioning part respectively. The movable part moves on the movable track and drives the second positioning part from the first position to the second position through the connecting rope to achieve locking.

8. The support device according to claim 7, characterized in that: The driving part includes a pressing part and a second elastic member. The upper end of the moving part is rotatably disposed on the pressing part, and the lower end of the moving part is slidably disposed on the moving track. The moving part is inclined and the lower end is disposed further away from the second positioning part relative to the upper end. The second elastic member drives the pressing part to return to the non-pressing state. The pressing part extends to the side of the joint arm.

9. The support device according to claim 1 or 2, characterized in that, The articulated arms are provided in three parts, defined as a front articulated arm, a middle articulated arm, and a rear articulated arm. The self-locking rotation structure includes a front self-locking rotation structure disposed between the front articulated arm and the middle articulated arm, and a rear self-locking rotation structure disposed between the middle articulated arm and the rear articulated arm. The connecting rope includes a first connecting rope and a second connecting rope. One end of the first connecting rope and the second connecting rope are both fixedly disposed on the drive unit. The drive unit is disposed on the front articulated arm. The other end of the first connecting rope is connected to a second locking structure on the front articulated arm. The second connecting rope passes through the front articulated arm and the front self-locking rotation structure in sequence, and is connected to the second locking structure of the middle articulated arm.

10. A floor stand, characterized in that: It includes the support device as described in any one of claims 1 to 9, a support base disposed at one end of the support device, and a connecting structure disposed at the other end of the support device.

Images