A vertical turntable positioning and locking device

Abstract

This utility model relates to the field of vertical turntable locking technology, and discloses a vertical turntable positioning and locking device, including a back plate and a connecting circular shell. A rotating assembly is provided on the inner side of the back plate. Two outer shells are fixedly connected to the side of the connecting circular shell, and each of the two outer shells has a snap-fit ​​assembly on its inner side. A turntable is rotatably connected to the bottom side of the connecting circular shell, and a locking device is provided on the inner side of the end of the turntable. The locking device includes a friction block, which is fixedly connected to the outer side of the back plate. In this utility model, a mechanically rigid locking is achieved by passing a fixing bolt through the threaded hole between the friction block and the turntable, ensuring that the turntable does not wobble after positioning. The material of the friction block increases the friction of the contact surface, further improving the locking reliability. It is suitable for scenarios requiring high-precision positioning. The threaded connection of the fixing bolt facilitates quick assembly and disassembly, meeting the needs of turntables that require frequent angle or position adjustments, and improving equipment flexibility.

Description

Technical Field

[0001] This utility model relates to the field of vertical turntable locking technology, and in particular to a vertical turntable positioning and locking device. Background Technology

[0002] A vertical turntable positioning and locking device is a mechanical device used to achieve precise positioning and reliable locking of a turntable. It is mainly used in scenarios requiring high-precision angle adjustment and fixation. Its core function is to ensure the turntable remains stable after being adjusted to the target position through mechanical structure design, preventing displacement due to external forces or vibrations, while also ensuring operational flexibility.

[0003] Currently used vertical turntables typically achieve locking via friction blocks, eliminating the need for complex mechanical transmission components. Locking is achieved solely through friction surface contact, resulting in a simple manufacturing process and low cost. During maintenance, only the wear of the friction surfaces needs to be monitored, and the friction blocks replaced or repaired, simplifying maintenance. They also require minimal installation space, adapting to various equipment layouts. No extra space is needed for complex locking structures; simply ensuring proper contact between the friction surfaces is sufficient for fixation.

[0004] Although the friction block has a simple structure and flexible installation, the friction surface is subjected to pressure and fretting wear over a long period of time, which gradually reduces the surface roughness and leads to a decrease in the coefficient of friction. Especially during high-frequency locking and unlocking operations, the wear rate is even faster, requiring frequent replacement of friction components and increasing maintenance costs. To address these issues, a vertical turntable positioning and locking device is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a vertical turntable positioning and locking device, which aims to improve the problem that the existing technology cannot effectively lock for a long time.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A vertical turntable positioning and locking device includes a back plate and a connecting round shell. A rotating assembly is provided on the inner side of the back plate. Two outer shells are fixedly connected to the side of the connecting round shell. A snap-fit ​​assembly is provided on the inner side of each of the two outer shells. A turntable is rotatably connected to the bottom side of the connecting round shell. A locking device is provided on the inner side of the end of the turntable.

[0008] The locking device includes a friction block, which is fixedly connected to the outside of the back plate. The back plate is fixedly connected to the end side of the turntable. The turntable has multiple threaded holes on its inner side, and the friction block also has threaded holes on its inner side. A fixing bolt is threadedly connected to the inner side of the threaded hole where the friction block is connected to the turntable.

[0009] As a further description of the above technical solution:

[0010] The rotating assembly includes a rotating shell, which is fixedly connected to the inner side of the back plate. A worm gear is rotatably connected to the inner side of the rotating shell, and a worm is rotatably connected to the inner side of the end of the rotating shell. The worm is meshed with the side of the worm gear, and a fixing block is fixedly connected to the side of the worm gear. A connecting rod is fixedly connected to the side of the fixing block.

[0011] As a further description of the above technical solution:

[0012] The snap-fit ​​assembly includes a fixing rod, which is slidably connected to the inner side of the housing. A spring is sleeved on the outer side of the fixing rod. A second fixing block is slidably connected to the inner side of the housing. The fixing rod is rotatably connected to the inner side of the second fixing block.

[0013] As a further description of the above technical solution:

[0014] The snap-fit ​​assembly also includes an elliptical snap-fit ​​block, which is fixedly connected to the end of the fixing rod. A snap-fit ​​groove is provided on one inner side of the fixing block, and the elliptical snap-fit ​​block snaps into the inner side of the snap-fit ​​groove.

[0015] As a further description of the above technical solution:

[0016] A pull ring is fixedly connected to one end of the fixing rod away from the elliptical block, and the pull ring is disposed on the outside of the outer shell;

[0017] As a further description of the above technical solution:

[0018] Multiple mounting blocks are installed on the inner side of the back plate. Rollers 2 are rotatably connected to the inner side of each mounting block. Rollers 2 are rotatably connected to the side of the turntable. Limiting ring 2 is fixedly connected to the side of the back plate. Limiting ring 1 is fixedly connected to the side of the turntable. Multiple rollers 1 are provided on the inner side of limiting ring 1 and limiting ring 2.

[0019] As a further description of the above technical solution:

[0020] A limit block is fixedly connected to the side of the turntable, and the connecting shell is rotatably connected to the side of the limit block.

[0021] As a further description of the above technical solution:

[0022] A connecting rod is fixedly connected to the inner side of the fixing block, and the connecting rod is also fixedly connected to the inner side of the connecting circular shell.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, a mechanically rigid locking is achieved by passing a fixing bolt through the threaded hole of the friction block and the turntable, ensuring that the turntable does not wobble after positioning. The material of the friction block can increase the friction of the contact surface, further improving the locking reliability. It is suitable for scenarios requiring high-precision positioning. The threaded connection of the fixing bolt facilitates quick assembly and disassembly, meeting the working conditions where the turntable needs to frequently adjust its angle or position, and improving the flexibility of the equipment.

[0025] 2. In this invention, the meshing transmission between the worm and the worm wheel has a reverse self-locking characteristic, meaning that the worm can drive the worm wheel to rotate, but the worm wheel cannot drive the worm in the reverse direction. This characteristic allows the turntable to automatically lock after being adjusted to the target angle, preventing positional deviation due to external interference, and is especially suitable for operations that require maintaining a fixed angle for a long time. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a vertical turntable positioning and locking device proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the connecting rod of a vertical turntable positioning and locking device proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the worm gear structure of a vertical turntable positioning and locking device proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the structure of an elliptical locking block in a vertical turntable positioning and locking device proposed in this utility model.

[0030] Figure 5 This is a schematic diagram of the structure of a vertical turntable positioning and locking device proposed in this utility model;

[0031] Figure 6 This is a schematic diagram of the limiting ring of a vertical turntable positioning and locking device proposed in this utility model;

[0032] Figure 7 This is a schematic diagram of the mounting block of a vertical turntable positioning and locking device proposed in this utility model;

[0033] Figure 8 This is a schematic diagram of the slot structure of a vertical turntable positioning and locking device proposed in this utility model.

[0034] Legend:

[0035] 1. Back plate; 2. Turntable; 3. Fixing bolt; 4. Outer shell; 5. Connecting round shell; 6. Connecting rod; 7. Threaded hole; 8. Mounting block; 9. Limiting block; 10. Pull ring; 11. Spring; 12. Friction block; 13. Fixing block one; 14. Rotating shell; 15. Worm gear; 16. Worm; 17. Fixing rod; 18. Elliptical locking block; 19. Limiting ring one; 20. Limiting ring two; 21. Roller one; 22. Roller two; 23. Fixing block two; 24. Slot. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Reference Figure 1 , Figure 2 and Figure 5 An embodiment of this utility model is provided: a vertical turntable positioning and locking device, including a back plate 1 and a connecting round shell 5. A rotating component is provided on the inner side of the back plate 1. Two outer shells 4 are fixedly connected to the side of the connecting round shell 5. A snap-fit ​​component is provided on the inner side of each of the two outer shells 4. A turntable 2 is rotatably connected to the bottom side of the connecting round shell 5. A locking device is provided on the inner side of the end of the turntable 2.

[0038] The locking device includes a friction block 12, which is fixedly connected to the outer side of the back plate 1. The back plate 1 is fixedly connected to the end side of the turntable 2. Multiple threaded holes 7 are formed on the inner side of the turntable 2, and threaded holes 7 are also formed on the inner side of the friction block 12. A fixing bolt 3 is threadedly connected to the inner side of the threaded hole 7 connecting the friction block 12 and the turntable 2. The friction block 12 is fixed to the outer side of the back plate 1, and the back plate 1 is fixedly connected to the side of the turntable 2. The threaded holes 7 of the turntable 2 and the friction block 12 are threadedly connected by the fixing bolt 3. When the fixing bolt 3 is tightened, the friction block 12 fits tightly against the turntable 2, using the frictional force of the contact surface to prevent the turntable 2 from rotating, achieving high-precision locking; loosening the bolt releases the lock, facilitating angle adjustment.

[0039] Reference Figure 2 and Figure 3The rotating assembly includes a rotating shell 14, which is fixedly connected to the inner side of the back plate 1. A worm gear 15 is rotatably connected to the inner side of the rotating shell 14, and a worm 16 is rotatably connected to the inner side of the end of the rotating shell 14. The worm 16 is meshed with the side of the worm gear 15. A fixing block 13 is fixedly connected to the side of the worm gear 15, and a connecting rod 6 is fixedly connected to the side of the fixing block 13. The worm 16 is driven to rotate by an external device. The meshing relationship between the worm 16 and the worm gear 15 causes the worm gear 15 to rotate within the rotating shell 14. The fixing block 13 on the side of the worm gear 15 is fixedly connected to the connecting round shell 5 via the connecting rod 6. Therefore, when the worm gear 15 rotates, it will drive the connecting round shell 5 and the turntable 2 to rotate synchronously through the fixing block 13 and the connecting rod 6, thereby achieving angle adjustment.

[0040] Reference Figure 2 , Figure 4 and Figure 8 The snap-fit ​​assembly includes a fixing rod 17, which is slidably connected to the inner side of the outer shell 4. A spring 11 is sleeved on the outer side of the fixing rod 17. A second fixing block 23 is slidably connected to the inner side of the outer shell 4, and the fixing rod 17 is rotatably connected to the inner side of the second fixing block 23. The snap-fit ​​assembly also includes an elliptical snap-fit ​​block 18, which is fixedly connected to the end of the fixing rod 17. A slot 24 is formed on the inner side of the first fixing block 13, and the elliptical snap-fit ​​block 18 snaps into the inner side of the slot 24. A pull ring 10 is fixedly connected to the end of the fixing rod 17 away from the elliptical snap-fit ​​block 18, and the pull ring 10 is located on the outside of the outer shell 4. The spring 11 pushes the fixing rod 17 to move inward, so that the elliptical snap-fit ​​block 18 at the end of the fixing rod 17 snaps into the slot 24 of the first fixing block 13. When the pull ring 10 is operated, it drives the elliptical snap-fit ​​block 18 to rotate in the slot 24, completing the installation of the connection between the circular shell 5 and the first fixing block 13. While rotating again, the pull ring 10 is pulled outward, and the fixing rod 17 slides outward against the elastic force of the spring 11. The elliptical locking block 18 disengages from the locking groove 24, thereby releasing the locking state between the connecting round shell 5 and the fixing block 13, allowing them to be detached.

[0041] Reference Figure 2 , Figure 6 and Figure 7Multiple mounting blocks 8 are installed on the inner side of the back plate 1. Rollers 22 are rotatably connected to the inner side of each mounting block 8. These rollers 22 are rotatably connected to the side of the turntable 2. The rollers 22 are rotatably connected to the mounting blocks 8 on the inner side of the back plate 1, and they fit against the side of the turntable 2, providing radial support and reducing rotational friction. Multiple rollers 21 are arranged between the limiting ring 19 on the side of the turntable 2 and the limiting ring 20 on the back plate 1, forming an annular rolling support to restrict the axial sliding of the turntable 2. The limiting ring 20 is fixedly connected to the side of the back plate 1, and the limiting ring 19 is fixedly connected to the side of the turntable 2. Multiple rollers 21 are arranged on the inner side of both the limiting ring 19 and the limiting ring 20. The limiting block 9 on the side of the turntable 2 is rotatably connected to the connecting shell 5, further limiting axial displacement. The rolling contact of the rollers 21 and 22 makes the turntable 2 rotate more smoothly and reduces mechanical wear. A limit block 9 is fixedly connected to the side of the turntable 2, and a connecting shell 5 is rotatably connected to the side of the limit block 9. A connecting rod 6 is fixedly connected to the inner side of the fixing block 13, and the connecting rod 6 is also fixedly connected to the inner side of the connecting shell 5. The bottom side of the connecting shell 5 is rotatably connected to the turntable 2, and the top is fixed to the fixing block 13 through the connecting rod 6, ensuring that the power of the rotating component is effectively transmitted to the turntable 2.

[0042] Working principle: When the drive worm 16 is rotated by an external device, it drives the worm wheel 15 to rotate through the meshing relationship. Because the fixed block 13 is fixed to the worm wheel 15, and the connecting rod 6 on its side is fixed to the inside of the connecting round shell 5, the rotation of the worm wheel 15 will drive the connecting round shell 5 and the turntable 2 to rotate synchronously through the fixed block 13 and the connecting rod 6, so as to achieve angle adjustment.

[0043] Both the turntable 2 and the friction block 12 have threaded holes 7 on their inner sides. They are connected by fixing bolts 3 to secure the friction block 12 and the turntable 2 together. When the fixing bolts 3 are tightened, the friction between the friction block 12 and the turntable 2 increases, restricting the rotation of the turntable 2 and achieving positioning and locking. Loosening the bolts can release the lock and allow the turntable to rotate.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vertical turntable positioning and locking device, comprising a back plate (1) and a connecting circular shell (5), characterized in that: The back plate (1) is provided with a rotating assembly on the inner side. The connecting round shell (5) is fixedly connected to two outer shells (4). Both outer shells (4) are provided with snap-fit ​​assemblies on the inner side. The bottom side of the connecting round shell (5) is rotatably connected to a turntable (2). The inner side of the end of the turntable (2) is provided with a locking device. The locking device includes a friction block (12), which is fixedly connected to the outside of the back plate (1). The back plate (1) is fixedly connected to the end side of the turntable (2). The turntable (2) has multiple threaded holes (7) on its inner side. The friction block (12) also has threaded holes (7) on its inner side. The friction block (12) is connected to the turntable (2) by a fixing bolt (3) threadedly connected to the inner side of the threaded hole (7).

2. The vertical turntable positioning and locking device according to claim 1, characterized in that: The rotating assembly includes a rotating shell (14), which is fixedly connected to the inner side of the back plate (1). A worm gear (15) is rotatably connected to the inner side of the rotating shell (14). A worm (16) is rotatably connected to the inner side of the end of the rotating shell (14). The worm (16) is meshed with the side of the worm gear (15). A fixing block (13) is fixedly connected to the side of the worm gear (15). A connecting rod (6) is fixedly connected to the side of the fixing block (13).

3. The vertical turntable positioning and locking device according to claim 2, characterized in that: The snap-fit ​​assembly includes a fixing rod (17), which is slidably connected to the inner side of the outer shell (4). A spring (11) is sleeved on the outer side of the fixing rod (17). A fixing block (23) is slidably connected to the inner side of the outer shell (4). The fixing rod (17) is rotatably connected to the inner side of the fixing block (23).

4. The vertical turntable positioning and locking device according to claim 3, characterized in that: The snap-fit ​​assembly also includes an elliptical snap-fit ​​block (18), which is fixedly connected to the end of the fixing rod (17). A slot (24) is provided on the inner side of the fixing block (13), and the elliptical snap-fit ​​block (18) snaps into the inner side of the slot (24).

5. A vertical turntable positioning and locking device according to claim 4, characterized in that: A pull ring (10) is fixedly connected to one end of the fixing rod (17) away from the elliptical locking block (18), and the pull ring (10) is disposed on the outside of the outer shell (4).

6. The vertical turntable positioning and locking device according to claim 1, characterized in that: Multiple mounting blocks (8) are installed on the inner side of the back plate (1). Rollers (22) are rotatably connected to the inner side of each mounting block (8). Rollers (22) are rotatably connected to the side of the turntable (2). Limiting rings (20) are fixedly connected to the side of the back plate (1). Limiting rings (19) are fixedly connected to the side of the turntable (2). Multiple rollers (21) are provided on the inner side of limiting rings (19) and limiting rings (20).

7. The vertical turntable positioning and locking device according to claim 1, characterized in that: The turntable (2) is fixedly connected to a limiting block (9) on its side, and the connecting shell (5) is rotatably connected to the side of the limiting block (9).

8. A vertical turntable positioning and locking device according to claim 2, characterized in that: A connecting rod (6) is fixedly connected to the inner side of the fixing block (13), and the connecting rod (6) is also fixedly connected to the inner side of the connecting shell (5).

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