Multi-degree-of-freedom connecting rod supporting device

Abstract

The utility model discloses a multi-degree-of-freedom connecting rod supporting device which comprises a plurality of connecting rods and rotating assemblies which are connected end to end, and every two adjacent connecting rods are connected through the corresponding rotating assembly. The rotating assembly comprises a guiding device, a second rotating shaft, a locking device and two friction discs. The ends of every two adjacent connecting rods are arranged on the second rotating shaft in a sleeving mode, one connecting rod is fixedly connected with the second rotating shaft, the other connecting rod is rotationally connected with the second rotating shaft, the two friction discs are coaxially arranged at one end of the second rotating shaft, one friction disc is fixedly connected with the second rotating shaft, and the guiding devices are arranged on the connecting rods and are in sliding connection with the other friction disc. The positioning device is used for circumferentially positioning the other friction disc, and the locking device is used for applying locking force to the two friction discs; the movement range of the displayer can be widened through connection of the multiple connecting rods, meanwhile, the locking device is adopted to apply pressure to the two friction discs, the two friction discs are combined, the positioning stability of the rotating shaft is improved, the structure is simple, and operation is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment brackets, in particular to a multi-freedom connecting rod supporting device. Background Art

[0002] Movie studio monitor stands are devices used to support and fix monitors used in film production. When designing a movie studio monitor stand, you need to consider the following key factors: Load-bearing capacity: Monitors in movie studios may be heavy, so the stand needs to have sufficient load-bearing capacity to ensure the safety and stability of the monitor. Adjustability: The monitor stand should be able to easily adjust the height, angle and position to suit different shooting needs and scenes. Durability: Movie production often requires long hours of work, so the stand should be durable and able to withstand frequent use and handling.

[0003] Existing support frames include universal ball support frames, hinge support frames and hinge support frames. The above support frames are generally used for small displays and have poor weighing capacity. For example, a universal ball support frame includes a base, a universal ball and a steering seat. The steering seat is connected to the electronic device. The angle of the steering seat is adjusted by the universal ball to achieve the angle adjustment of the display. However, if a larger display is installed, the locking mechanism of the universal ball will fail due to the heavy weight of the display, and the steering seat cannot be kept in the predetermined position, which seriously affects the use of the display. In addition, the existing support frame can only adjust the angle of the display, but cannot move the display, which limits the use range of the display. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a multi-degree-of-freedom connecting rod support device, in which two adjacent connecting rods are connected by a rotating assembly to achieve multi-degree-of-freedom rotation, and at the same time, the resistance of the chainring is used to lock and position them, thereby improving the stability of the rotating node.

[0005] The utility model is realized by the following technical solutions:

[0006] A multi-degree-of-freedom connecting rod support device comprises a plurality of connecting rods and a rotating assembly connected end to end, wherein two adjacent connecting rods are connected via the rotating assembly;

[0007] The rotating assembly includes a guiding device, a second rotating shaft, a locking device and two friction discs; the ends of two adjacent connecting rods are sleeved on the second rotating shaft, one connecting rod is fixedly connected to the second rotating shaft, and the other connecting rod is rotatably connected to the second rotating shaft. The two friction discs are coaxially arranged at one end of the second rotating shaft, and one friction disc is fixedly connected to the second rotating shaft. The guiding device is arranged on the connecting rod and is slidably connected to the other friction disc for circumferential positioning of the other friction disc, and the locking device is used to apply locking force to the two friction discs.

[0008] Preferably, a resistance structure is provided between the two friction discs.

[0009] Preferably, the resistance structure is a toothed structure arranged on the end surface of the friction disk, and the toothed structures of the two friction disks can mesh with each other.

[0010] Preferably, the locking device is a locking bolt, one end of which passes through two friction plates and is connected to the second rotating shaft.

[0011] Preferably, an articulated seat is provided at the end of the first connecting rod, a rotating assembly is provided on the articulated seat, a first rotating axis is rotatably provided on the second rotating axis of the rotating assembly, and the first rotating axis is perpendicular to the axial direction of the second rotating axis.

[0012] Preferably, a rotation-stop structure is provided on the second rotating shaft for positioning the rotation angle of the first rotating shaft.

[0013] Preferably, a stop structure is provided on the second rotating shaft for axially positioning the first rotating shaft.

[0014] Preferably, a fixing plate for connecting to a display is provided at the end of the first rotating shaft.

[0015] Preferably, a rotating assembly is provided at the end of the terminal connecting rod, and the second rotating shaft of the rotating assembly is coaxially connected to the fixed shaft, and the fixed shaft is used to be connected to a fixed target object.

[0016] Preferably, the rotation planes of the multiple connecting rods are the same, or the rotation planes of two adjacent connecting rods are perpendicular to each other.

[0017] Compared with the prior art, the utility model has the following beneficial technical effects:

[0018] The utility model provides a multi-degree-of-freedom connecting rod supporting device, in which a plurality of connecting rods are connected through a rotating assembly, a fixed plate is connected to the first rotating assembly through a first rotating shaft, and the axis of the first rotating shaft and the first rotating assembly are perpendicular, so as to realize multi-dimensional rotation of the display; in addition, two friction discs are arranged on the rotating assembly, and one of the friction discs is in a circumferential positioning state, and the other is connected to the rotating shaft. When the two friction discs are combined, the positioning of the rotating assembly can be realized, and a locking device is used to apply pressure to the two friction discs so that the two friction discs are combined, thereby improving the positioning stability of the rotating shaft, and the structure is simple and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the multi-degree-of-freedom connecting rod support device of the utility model;

[0020] Figure 2 It is a schematic diagram of the installation of the hinged seat and the rotating assembly of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the hinged seat of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the first rotating shaft of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the rotating assembly of the utility model;

[0024] Figure 6 It is a schematic diagram of the installation of the anti-slip structure and the rotating assembly of the utility model;

[0025] Figure 7 This is a schematic diagram of the installation of the connecting rod of the utility model;

[0026] Figure 8 This is a schematic diagram of the structure of the fixed shaft of the utility model;

[0027] Fig. 9 It is a cross-sectional view of the rotating assembly of the utility model.

[0028] In the figure: 1. first rotating component; 2. second rotating component; 3. fixed plate; 4. third rotating component; 5. hinge seat; 6. first connecting rod; 7. fixed shaft; 8. first rotating shaft; 9. supporting ring; 10. second connecting rod; 11. second rotating shaft; 12. first friction disk; 13. second friction disk; 14. locking knob; 15. positioning block; 16. positioning ring; 17. positioning knob; 18. anti-slip pin; 51. first axial hole; 52. positioning groove; 53. second axial hole; 71. third axial hole; 72. pin; 81. positioning hole; 82. anti-slip groove. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings, which are intended to explain the present invention rather than to limit it.

[0030] See also Figure 1-9 A multi-degree-of-freedom connecting rod support device includes a plurality of connecting rods and a rotating assembly connected end to end, and two adjacent connecting rods are connected by a rotating assembly.

[0031] The rotating assembly includes a guide device, a second rotating shaft 11, a first friction disc 12, a second friction disc 13 and a locking device. The ends of two adjacent connecting rods are sleeved on the second rotating shaft 11, one connecting rod is fixedly connected to the second rotating shaft 11, and the other connecting rod is rotatably connected to the second rotating shaft 11. The first friction disc 12 and the second friction disc 13 are coaxially arranged at one end of the second rotating shaft 11, the first friction disc 12 is fixedly connected to the second rotating shaft 11, the guide device is arranged on the connecting rod and is slidably connected to the second friction disc 13, and is used to position the second friction disc 13 circumferentially, and the locking device is used to apply locking force to the first friction disc 12 and the second friction disc 13.

[0032] See also Figure 1 In this embodiment, a first connecting rod 6 and a second connecting rod 10 are included. A first rotating component 1 is provided at one end of the first connecting rod 6. One end of the first rotating component 1 is connected to a fixed shaft 7. The other end of the first connecting rod 6 is connected to one end of the second connecting rod through a second rotating component 2. A hinge seat 5 is provided at the other end of the second connecting rod. A fixed plate 3 is connected to the hinge seat 5 through a third rotating component 4. The fixed plate is used to connect the display. The axes of the first rotating component 1 and the second rotating component 2 are parallel to each other. The axes of the third rotating component 4 and the second rotating component 2 are perpendicular to each other, so as to realize the adjustment of the pitch angle and horizontal angle of the display. At the same time, the position of the display can be adjusted through multiple connecting rods.

[0033] In another embodiment, three connecting rods are included, and two of the three connecting rods are connected by a rotating assembly to increase the moving distance of the display.

[0034] The fixed shaft is used to connect with a fixed target object, for example, a fixed support frame, a workbench, or a base on a wall. The first connecting rod 6 extends horizontally, and the first connecting rod 6 is rotatably connected to the fixed shaft 7. A third shaft hole 71 is provided at the bottom of the fixed shaft 7, and the third shaft hole 71 is inserted into the connecting shaft of the fixed target object, and a pin 72 is provided on the outside of the fixed shaft 7, and the end of the pin 72 is connected to the connecting shaft.

[0035] A stud may also be provided on the fixing shaft to be connected to a screw hole of the fixing target object; for example, the lower end of the fixing shaft is inserted into a corresponding position for fixing.

[0036] The first friction disc 12 and the second friction disc 13 in the rotating assembly are in a combined state, and the guide device positions the second friction disc 13 circumferentially so that the second friction disc 13 can only move axially. Therefore, the rotating assembly can be positioned in the combined state, and a resistance structure is provided between the first friction disc 12 and the second friction disc 13 to provide a combining force between the two.

[0037] In this embodiment, the resistance structure is a tooth-shaped structure, and end face teeth that can mesh with each other are provided at one end of the first friction plate 12 and the second friction plate 13 that are arranged opposite to each other. The locking device applies pressure to the first friction plate 12 and the second friction plate 13, and the second friction plate 13 moves toward the direction of the first friction plate 12 and the two end face teeth engage with each other to achieve the positioning of the rotating component.

[0038] Furthermore, in order to improve the separation efficiency of the two friction plates, an elastic device, preferably a spring, is provided between the two friction plates. A coaxial connecting column is provided at the end of the second rotating shaft 11. The first friction plate 12 is sleeved on the connecting column and connected to the second rotating shaft 11 by screws. The spring is sleeved on the connecting column to realize separation elastic force for the first friction plate 12 and the second friction plate 13.

[0039] Positioning rings 16 are disposed at the ends of the second rotating shaft 11 and the second friction disk 13. The two positioning rings are disposed on both sides of the connecting rod to axially position the entire rotating assembly.

[0040] The guiding device includes a positioning groove 52, a positioning block 15 and a guiding groove. The positioning groove 52 is arranged on the side wall of the connecting arm. The guiding groove is arranged on the annular outer wall of the second friction disc, and the guiding groove extends axially. One end of the positioning block 15 is fixedly connected to the positioning groove, and the other end is located in the guiding groove, so as to position the second friction disc circumferentially and enable the second friction disc to move axially along the positioning block.

[0041] The first connecting rod includes two parallel and spaced-apart connecting arms, and the two ends of the second rotating shaft 11 are rotatably connected to the two connecting arms respectively. A support ring 9 is also provided on the second rotating shaft 11 and is located between the two connecting arms. In this embodiment, the support ring is connected to the connecting arm by screws, and an axial hole is provided at the center of the second rotating shaft 11, and the fixed shaft is connected to the second rotating shaft 11 through the axial hole.

[0042] The locking device is a locking knob 14, one end of which passes through the second friction disc and is connected to the connecting column through a threaded structure. It can also be understood that the locking knob and the connecting column are connected by bolts, thereby controlling the combination state of the two friction discs.

[0043] The other end of the first connecting rod is connected to the second connecting rod, the second connecting rod is located between the two connecting arms and is connected to the second rotating assembly 2 through the first axial hole 51, and the second connecting rod is fixed to the second rotating shaft through a pin. When the two friction discs are separated, the second rotating shaft and the second connecting rod rotate synchronously to achieve horizontal angle adjustment of the second connecting rod.

[0044] An articulated seat 5 is provided at the other end of the second connecting rod. The articulated seat 5 is a U-shaped structure. A second axial hole 53 is provided on the articulated seat 5. The third rotating component 4 is installed in the second axial hole 53. A steering shaft hole is provided at the axial center of the second rotating shaft of the third rotating component, and the steering shaft hole and the axis of the second rotating shaft are perpendicular to each other. The first rotating shaft 8 is installed in the steering shaft hole. The first rotating shaft 8 is connected to the second rotating shaft through a rotation-stopping structure. At the same time, a slip-off preventing structure is provided on the second rotating shaft to prevent the first rotating shaft 8 from separating from the second rotating shaft.

[0045] The anti-rotation structure includes a positioning hole 81 and a positioning knob 17. The positioning holes are evenly distributed on the first rotating shaft. The positioning knob 17 is arranged on the second rotating shaft, and the positioning knob 17 can be inserted into the positioning hole 81. The positioning knob 17 is connected to different positioning holes to position the first rotating shaft at different rotation angles. In this embodiment, the two friction discs are located at one end of the second rotating shaft, and the positioning knob is located at the other end of the second rotating shaft.

[0046] The anti-slip structure includes an anti-slip groove 82 and an anti-slip pin 18. The anti-slip groove 82 is an annular groove arranged on the first rotating shaft 8. The anti-slip groove 82 is connected to the second rotating shaft 11 through a threaded structure, and one end of the anti-slip groove 82 extends into the anti-slip groove 82 to axially position the first rotating shaft.

[0047] The above content is only for explaining the technical idea of ​​the utility model and cannot be used to limit the protection scope of the utility model. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the utility model shall fall within the protection scope of the claims of the utility model.

Claims

1. A multi-degree-of-freedom connecting rod support device, characterized in that: It includes a plurality of connecting rods and rotating components connected end to end, and two adjacent connecting rods are connected by the rotating components; The rotating assembly includes a guiding device, a second rotating shaft, a locking device and two friction discs; the ends of two adjacent connecting rods are sleeved on the second rotating shaft, one connecting rod is fixedly connected to the second rotating shaft, and the other connecting rod is rotatably connected to the second rotating shaft. The two friction discs are coaxially arranged at one end of the second rotating shaft, and one friction disc is fixedly connected to the second rotating shaft. The guiding device is arranged on the connecting rod and is slidably connected to the other friction disc for circumferential positioning of the other friction disc, and the locking device is used to apply locking force to the two friction discs.

2. A multi-degree-of-freedom connecting rod support device according to claim 1, characterized in that: A resistance structure is arranged between the two friction discs.

3. A multi-degree-of-freedom connecting rod support device according to claim 2, characterized in that: The resistance structure is a toothed structure arranged on the end surface of the friction disk, and the toothed structures of the two friction disks can mesh with each other.

4. The multi-degree-of-freedom connecting rod support device according to claim 1, characterized in that: The locking device is a locking bolt, one end of which passes through two friction plates and is connected to the second rotating shaft.

5. The multi-degree-of-freedom connecting rod support device according to claim 1, characterized in that: An articulated seat is arranged at the end of the first connecting rod, a rotating assembly is arranged on the articulated seat, a first rotating shaft is rotatably arranged on the second rotating shaft of the rotating assembly, and the axial directions of the first rotating shaft and the second rotating shaft are perpendicular.

6. A multi-degree-of-freedom connecting rod support device according to claim 5, characterized in that: The second rotating shaft is provided with a rotation-stopping structure for positioning the rotation angle of the first rotating shaft.

7. The multi-degree-of-freedom connecting rod support device according to claim 5, characterized in that: The second rotating shaft is provided with an anti-slip structure for axially positioning the first rotating shaft.

8. The multi-degree-of-freedom connecting rod support device according to claim 5, characterized in that: A fixing plate for connecting to a display is provided at the end of the first rotating shaft.

9. The multi-degree-of-freedom connecting rod support device according to claim 1, characterized in that: A rotating assembly is provided at the end of the terminal connecting rod, and a second rotating shaft of the rotating assembly is coaxially connected to a fixed shaft, and the fixed shaft is used to be connected to a fixed target object.

10. The multi-degree-of-freedom connecting rod support device according to claim 1, characterized in that: The rotation planes of the multiple connecting rods are the same, or the rotation planes of two adjacent connecting rods are perpendicular to each other.

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