Indexing rotation limiting structure

Abstract

The utility model discloses a kind of index rotation limiting structures, including fixed seat and the rotating platform rotationally connected with the fixed seat, the side of the rotating platform is provided with turntable, the outer periphery of the turntable is equipped with a plurality of index holes in circumferential direction, a plurality of index holes are equidistant distribution;The top of the fixed seat is provided with the clamping groove for accommodating the turntable, the side of the fixed seat is provided with the guide hole being communicated with the clamping groove, positioning pin is arranged in the guide hole, one end of the positioning pin can be inserted into any index hole of the turntable to realize index rotation limiting;The other end of the positioning pin is connected with operating element, and the operating element is used to drive the positioning pin and index hole embedding or separating.The utility model aims at providing a kind of index rotation limiting structures, with compact structure, easy operation, positioning stable and the characteristics of high index accuracy.

Description

Technical Field

[0001] This utility model relates to the field of limiting structure technology, and in particular to an indexing rotation limiting structure. Background Technology

[0002] Currently, devices requiring angle adjustment or direction control, such as brackets, rotating lights, lamps, and satellite signal receivers, typically incorporate indexable rotatable support structures to enable multi-angle positioning according to usage requirements. Existing indexable rotatable structures primarily limit the rotation angle and position through friction damping, gear meshing, and other methods.

[0003] However, relying on friction damping leads to significant long-term wear and tear on the indexing rotary structure, resulting in unstable angle control after prolonged use. Meanwhile, indexing rotary structures relying on gear meshing require precise assembly and synchronous control, resulting in a poor user experience. Therefore, there is an urgent need for a compact, easy-to-operate, and stable indexing rotary limiting structure to solve the aforementioned technical problems and improve the reliability and user experience of the rotary mechanism. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an indexing rotation limiting structure that features a compact structure, easy operation, stable positioning, and high indexing accuracy.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A rotary indexing limiting structure includes a fixed base and a rotary platform rotatably connected to the fixed base. A turntable is provided on one side of the rotary platform, and a plurality of indexing holes are provided on the outer periphery of the turntable along the circumferential direction. The plurality of indexing holes are distributed at equal intervals. The top of the fixed base is provided with a slot for accommodating the turntable. One side of the fixed base is provided with a guide hole that communicates with the slot. A positioning pin is provided in the guide hole. One end of the positioning pin can be inserted into any indexing hole of the turntable to achieve indexing rotation limit. The other end of the positioning pin is connected to an operating component, which is used to drive the positioning pin to engage or disengage from the indexing hole.

[0006] Furthermore, the positioning pin is slidably connected to the guide hole; an elastic reset member is sleeved on the outside of the positioning pin, which is used to automatically reset the positioning pin to the limit position after the operating member is released. The limit position is when one end of the positioning pin is inserted into any indexing hole of the turntable to achieve indexing rotation limit.

[0007] Furthermore, the locating pin is threadedly connected to the guide hole, and the operating component drives the locating pin to engage or disengage from the indexing hole by rotation.

[0008] Furthermore, the indexing rotation limiting structure also includes an axial anti-disengagement component to prevent the turntable from disengaging from the slot along the axial direction.

[0009] Furthermore, an external device is connected to the side of the rotating platform away from the axis of rotation. The external device includes one of the following: a bracket, a lamp, or a satellite signal receiver.

[0010] In summary, this utility model has the following beneficial effects: by setting a turntable with an indexing hole, a sliding or threaded positioning pin, and an elastic reset component between the fixed base and the rotating platform, the precise indexing and positioning and automatic limit functions of the rotating component are realized, which is easy to operate and reliable in positioning. By incorporating axial anti-loosening components, the turntable is effectively prevented from axially loosening during rotation or vibration, significantly improving structural stability and service life. The overall structure is compact and easy to install and maintain, making it widely applicable to devices requiring indexing adjustment, such as brackets, lamps, and satellite signal receivers, demonstrating good versatility and practical value. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the combination structure of the indexing rotation limiting structure and the external device in Example 1; Figure 2 for Figure 1 Structural sectional view; Figure 3 for Figure 1 A schematic diagram of the structure in a semi-sectional state; Figure 4 for Figure 1 Exploded view of the indexing rotation limiting structure in the diagram; Figure 5 for Figure 4 A structural diagram from another direction; Figure 6 A schematic diagram of the combined structure of the indexing rotation limiting structure and the lamp bracket; Figure 7 This is a schematic diagram of the combined structure of the indexing rotation limiting structure and the satellite signal receiver.

[0012] Reference numerals in the attached drawings: 1. Fixed base; 2. Rotating platform; 3. Turntable; 4. Indexing hole; 5. Slot; 6. Guide hole; 7. Positioning pin; 8. Operating component; 9. Axial anti-disengagement component; 10. First fixing component; 11. Second fixing component; 12. Shaft hole; 13. External equipment. Detailed Implementation

[0013] The present invention will be further described in detail below with reference to the accompanying drawings.

[0014] like Figures 1 to 7As shown, an indexing rotation limiting structure includes a fixed base 1 and a rotating platform 2 rotatably connected to the fixed base 1.

[0015] A turntable 3 is fixedly connected to one side of the rotating platform 2. The outer circumference of the turntable 3 is provided with a plurality of indexing holes 4 along the circumferential direction. The plurality of indexing holes 4 are distributed at equal intervals to realize the indexing and positioning of the rotating platform 2.

[0016] The top of the fixed base 1 is provided with a slot 5 for accommodating the turntable 3. The shape of the slot 5 is adapted to the turntable 3 to provide guiding support during the rotation of the turntable 3.

[0017] The fixed base 1 has a guide hole 6 that communicates with the slot 5 on one side, and a positioning pin 7 is provided in the guide hole 6.

[0018] One end of the positioning pin 7 can be inserted into any of the indexing holes 4 of the turntable 3 to achieve indexing rotation limit, and the other end is connected to the operating component 8. The operating component 8 can be manually pulled or rotated to drive the positioning pin 7 to be embedded or separated from the indexing hole 4.

[0019] An elastic reset element (not shown in the attached drawing) is sleeved on the outer side of the positioning pin 7. This elastic reset element is preferably a compression spring (not shown in the attached drawing) disposed in the guide hole 6. One end of the spring abuts against the inner wall of the fixing seat 1, and the other end abuts against the rear end of the positioning pin 7.

[0020] When the user pulls the operating component 8, the positioning pin 7 overcomes the spring force and exits the indexing hole 4; after releasing the operating component 8, the spring's restoring force causes the positioning pin 7 to automatically return to its original position and insert into the next indexing hole 4, achieving automatic limiting. Through this structural design, the positioning pin 7 can automatically engage without manual reset, improving the convenience and reliability of the positioning operation.

[0021] Preferably, the operating component 8 is a retaining ring structure located at the outer end of the positioning pin 7, allowing the user to directly pull the retaining ring manually to control the forward and backward movement of the positioning pin 7. This design simplifies the operation process and enables rapid indexing adjustment without the need for additional tools.

[0022] To further improve indexing accuracy and smooth engagement, a limiting chamfer is provided on the wall of the indexing hole 4, forming a tapered guide surface. When the turntable 3 rotates close to the target position, the locating pin 7 slides into the indexing hole 4 along the chamfer under the action of spring force. This structure can effectively reduce jamming caused by alignment errors, making the indexing process smoother and improving indexing accuracy and structural life.

[0023] In this patent, the indexing accuracy achievable by the indexing rotation limiting structure depends on the number of indexing holes 4. Those skilled in the art can set the appropriate number of indexing holes 4 according to usage requirements.

[0024] In another preferred configuration, the locating pin 7 can be threadedly connected to the guide hole 6. The operating member 8 rotates to move the locating pin 7 axially, thereby achieving insertion or separation from the indexing hole 4. This method has the advantages of good adjustability and controllable positioning depth.

[0025] To prevent the turntable 3 from detaching from the slot 5 along the axial direction during rotation, the indexing rotation limiting structure also includes an axial anti-detachment component 9.

[0026] The axial anti-detachment component 9 includes a first fixing component 10 and a second fixing component 11 respectively disposed on both sides of the turntable 3.

[0027] The turntable 3 has a through-hole 12 at its axis, and the first fixing member 10 and the second fixing member 11 are located at both ends of the through-hole 12 and are fixed by threaded connection.

[0028] The second fixing member 11 is fixedly connected to the fixing base 1 and is used to restrict the axial movement of the turntable 3 when it rotates.

[0029] With this structure, the first fixing member 10 and the second fixing member 11 can form a double-sided limiting clamp on the turntable 3, effectively preventing the turntable 3 from axially loosening due to vibration or external force during rotation, and significantly improving the stability and safety of the structure.

[0030] In practical applications, the side of the rotating platform 2 away from the turntable 3 can be connected to external devices as needed.

[0031] The external device can be a bracket, a lamp, or a satellite signal receiver, or other components that require angle adjustment.

[0032] This design enables the indexing rotation limiting structure of this utility model to be used as a modular universal indexing adjustment unit, which is convenient for equipment installation and disassembly, and can be widely used in lighting equipment, communication antennas, camera devices and other fields, with strong versatility and practical value.

[0033] The specific embodiments are merely explanations of this utility model and are not intended to limit it. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this utility model.

Claims

1. A type of indexing rotation limiting structure, characterized in that: It includes a fixed base (1) and a rotating platform (2) rotatably connected to the fixed base (1). A turntable (3) is provided on one side of the rotating platform (2). A plurality of indexing holes (4) are provided on the outer periphery of the turntable (3) along the circumferential direction. The plurality of indexing holes (4) are distributed at equal intervals. The top of the fixed base (1) is provided with a slot (5) for accommodating the turntable (3). A guide hole (6) communicating with the slot (5) is provided on one side of the fixed base (1). A positioning pin (7) is provided in the guide hole (6). One end of the positioning pin (7) can be inserted into any indexing hole (4) of the turntable (3) to achieve indexing rotation limit. The other end of the positioning pin (7) is connected to an operating component (8). The operating component (8) is used to drive the positioning pin (7) to be embedded or separated from the indexing hole (4).

2. The indexing rotation limiting structure according to claim 1, characterized in that: The positioning pin (7) is slidably connected to the guide hole (6); an elastic reset member is sleeved on the outside of the positioning pin (7), and the elastic reset member is used to automatically reset the positioning pin (7) to the limit position after the operation member (8) is released. The limit position is when one end of the positioning pin (7) is inserted into any indexing hole (4) of the turntable (3) to achieve indexing rotation limit.

3. The indexing rotation limiting structure according to claim 2, characterized in that: The elastic reset component is a spring, which is disposed in the guide hole (6) and located between the positioning pin (7) and the fixed seat (1).

4. The indexing rotation limiting structure according to claim 1, characterized in that: The operating component (8) is a retaining ring located at the outer end of the positioning pin (7).

5. The indexing rotation limiting structure according to claim 1, characterized in that: The indexing hole (4) has a limiting chamfer on its hole wall to help the positioning pin (7) to be smoothly inserted.

6. The indexing rotation limiting structure according to claim 4, characterized in that: The positioning pin (7) is threadedly connected to the guide hole (6), and the operating member (8) drives the positioning pin (7) to engage or disengage from the indexing hole (4) by rotation.

7. The indexing rotation limiting structure according to claim 1, characterized in that: The indexing rotation limiting structure also includes an axial anti-disengagement component (9) to prevent the turntable (3) from disengaging from the slot (5) axially.

8. The indexing rotation limiting structure according to claim 7, characterized in that: The axial anti-detachment component (9) includes a first fixing component (10) and a second fixing component (11) respectively disposed on both sides of the turntable (3). The turntable (3) has a through-hole (12) at its axis. The first fixing component (10) and the second fixing component (11) are respectively located at both ends of the through-hole (12) and are fixed by threaded connection. The second fixing member (11) is fixedly connected to the fixing seat (1) and is used to restrict the axial movement of the turntable (3) when it rotates.

9. A type of indexing rotation limiting structure according to any one of claims 1-8, characterized in that: The rotating platform (2) is connected to an external device on the side away from the turntable (3). The external device includes one of the following: a bracket, a lamp, or a satellite signal receiver.

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