Self-locking leg tube connector for photographic tripod
The design of the self-locking leg connector solves the problems of unstable connection and complicated disassembly of the camera tripod, achieving a stable connection and convenient disassembly, thus improving the ease of use of the camera tripod.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN AOTONGBAO HARDWARE PRODUCTS CO LTD
- Filing Date
- 2025-09-18
- Publication Date
- 2026-07-14
AI Technical Summary
Existing camera tripods are not secure enough, and the disassembly process is complicated and cumbersome, requiring complex tools, making it difficult to meet the need for stable support during photography.
The self-locking foot tube connector uses a locking tongue and a compression spring to achieve a self-locking function, and the design of the press plate and compression rod simplifies the disassembly process.
It achieves a stable and secure connection, and the disassembly process is simple and convenient, requiring no complicated tools and improving operational efficiency.
Smart Images

Figure CN224497008U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of leg tube connectors, specifically to a self-locking leg tube connector for a camera tripod. Background Technology
[0002] The leg joints of a photography tripod are key components ensuring overall stability and flexible adjustment. They are typically made of high-strength aluminum alloy or carbon fiber, and the extension and stabilization of the legs are achieved through precision threads or quick-locking mechanisms. The joints often feature anti-rotation grooves or damping structures to prevent accidental displacement during shooting, while also balancing lightweight design with load-bearing capacity. Some high-end models incorporate rubber sealing rings to enhance dust and water resistance, while modular designs allow users to replace legs of different sizes to adapt to complex terrains.
[0003] In existing tripod connection technologies, traditional leg tube connection methods may have problems with insufficient stability, which will affect the stability and safety of the tripod and make it difficult to meet the needs of stable support during photography. Furthermore, when it is necessary to disassemble the tripod, the disassembly process may be complicated and cumbersome, often requiring the use of complex tools, resulting in low operational efficiency and causing great inconvenience to users in assembling and disassembling the tripod according to actual usage needs. Utility Model Content
[0004] The purpose of this invention is to address the above-mentioned shortcomings by providing a self-locking leg connector for photography tripods. This connector features a self-locking function, a stable connection, and a simple and convenient disassembly process. It solves the technical problem that existing technologies cannot meet the demand for stable tripod support during photography and require complex tools to complete the task.
[0005] The objective of this utility model is achieved through the following means:
[0006] A self-locking leg connector for a photography tripod includes a connector base, an mounting sleeve mounted on the upper surface of the connector base, a connecting rod inserted into the inner cavity of the mounting sleeve, locking tongues evenly distributed on the surface of the connecting rod, the bottom of the locking tongues being arc-shaped, and compression springs installed inside each locking tongue. Insertion grooves are formed on the inner wall of the mounting sleeve corresponding to the locking tongues, and the locking tongues are inserted into the insertion grooves. Pressing plates are evenly distributed on the surface of the mounting sleeve, and pressing rods are installed on the inner side of the pressing plates corresponding to the insertion grooves, with the pressing rods inserted into the insertion grooves.
[0007] Furthermore, a return spring is installed on the inner side of each pressing plate, and the other end of each return spring is connected to the surface of the mounting sleeve. The return spring can squeeze the pressing plate, so that the pressing plate can drive the pressing rod to move outward and will not continue to push the lock tongue.
[0008] Furthermore, limit rods are installed on both sides of the inner wall of the pressing plate, and limit grooves are opened on the surface of the mounting sleeve at the corresponding positions of the limit rods. The limit rods are inserted into the interior of the limit grooves, so that the pressing plate can be movably installed on the surface of the mounting sleeve.
[0009] Furthermore, the surface of the connecting rod and the corresponding position of the locking tongue are provided with mounting grooves, and the locking tongue is installed inside the mounting groove, so that the locking tongue can retract into the mounting groove and will not affect the insertion of the connecting rod into the mounting sleeve.
[0010] Furthermore, the surface of the connecting rod is evenly provided with sliding plates, and the mounting sleeve and the sliding plates are provided with sliding grooves at corresponding positions. The sliding plates are inserted into the sliding grooves, so that the connecting rod can be accurately installed inside the mounting sleeve.
[0011] Furthermore, the surface of the connecting seat is evenly provided with connecting plates, and each connecting plate is provided with a pin. The connecting plates and pins are used to install the bracket.
[0012] The beneficial effects of this utility model are: when the added connecting rod is inserted into the mounting sleeve, the locking tongue is squeezed by the inner wall of the mounting sleeve, and the compression spring contracts. When it reaches the insertion slot position, the compression spring resets and pushes the locking tongue into the insertion slot, realizing the self-locking function, making the connection stable and ensuring the stability and safety of the camera tripod.
[0013] Meanwhile, pressing plates are evenly distributed on the surface of the mounting sleeve. The pressing plates are fitted with a squeezing rod that is inserted into the slot corresponding to the insertion slot. When disassembly is required, pressing the pressing plate will squeeze the locking tongue and make it exit the insertion slot, so that the connecting rod can be easily pulled out of the mounting sleeve. The whole disassembly process is simple and convenient, without the need for complicated tools, which greatly improves the operating efficiency and makes it convenient for users to assemble and disassemble the camera tripod according to their actual needs. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the locking tongue installation structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the locking tongue of this utility model;
[0017] Figure 4 This is a schematic diagram of the connecting rod of this utility model;
[0018] Figure 5 This is a schematic diagram of the structure of the pressing plate of this utility model;
[0019] Figure 6 This is a schematic diagram of the structure of the mounting sleeve of this utility model;
[0020] In the diagram, 1 is the connecting seat; 2 is the mounting sleeve; 3 is the connecting rod; 4 is the locking tongue; 5 is the compression spring; 6 is the insertion groove; 7 is the pressing plate; 8 is the compression rod; 9 is the return spring; 10 is the limiting rod; 11 is the limiting groove; 12 is the mounting groove; 13 is the sliding plate; 14 is the sliding groove; 15 is the connecting plate; and 16 is the pin. Detailed Implementation
[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0022] In this embodiment, refer to Figures 1-6 The self-locking leg connector for a photography tripod, specifically implemented therein, includes a connector 1, an mounting sleeve 2 installed on the upper surface of the connector 1, a connecting rod 3 inserted into the inner cavity of the mounting sleeve 2, locking tongues 4 evenly distributed on the surface of the connecting rod 3, the bottom of the locking tongues 4 being arc-shaped, compression springs 5 installed on the inner side of each locking tongue 4, insertion grooves 6 opened on the inner wall of the mounting sleeve 2 corresponding to the locking tongues 4, the locking tongues 4 being inserted into the interior of the insertion grooves 6, pressing plates 7 evenly distributed on the surface of the mounting sleeve 2, and pressing rods 8 installed on the inner side of the pressing plates 7 corresponding to the insertion grooves 6, the pressing rods 8 being inserted into the interior of the insertion grooves 6.
[0023] When the connecting rod 3 is inserted into the mounting sleeve 2, the locking tongue 4 is squeezed by the inner wall of the mounting sleeve 2, and the compression spring 5 contracts. When it reaches the position of the insertion slot 6, the compression spring 5 returns to its original position and pushes the locking tongue 4 into the insertion slot 6, realizing the self-locking function and ensuring a stable connection. At the same time, pressing plates 7 are evenly distributed on the surface of the mounting sleeve 2. The pressing rod 8 is installed on the inner side of the pressing plate 7 corresponding to the position of the insertion slot 6 and is inserted into the insertion slot 6. When disassembly is required, pressing the pressing plate 7 will squeeze the locking tongue 4 and make it withdraw from the insertion slot 6, so that the connecting rod 3 can be easily pulled out of the mounting sleeve 2. The operation is convenient.
[0024] Each pressing plate 7 has a return spring 9 installed on its inner side. The other end of each return spring 9 is connected to the surface of the mounting sleeve 2. The return spring 9 can press the pressing plate 7, so that the pressing plate 7 can drive the pressing rod 8 to move outward and will not continue to push the locking tongue 4.
[0025] Limiting rods 10 are installed on both sides of the inner wall of the pressing plate 7. Limiting grooves 11 are opened on the surface of the mounting sleeve 2 at the corresponding positions of the limiting rods 10. The limiting rods 10 are inserted into the interior of the limiting grooves 11, so that the pressing plate 7 can be movably installed on the surface of the mounting sleeve 2.
[0026] The surface of the connecting rod 3 and the corresponding position of the locking tongue 4 are provided with mounting grooves 12. The locking tongue 4 is installed inside the mounting groove 12, so that the locking tongue 4 can retract into the mounting groove 12 and will not affect the insertion of the connecting rod 3 into the mounting sleeve 2.
[0027] The surface of the connecting rod 3 is evenly provided with sliding plates 13. The mounting sleeve 2 and the sliding plates 13 are provided with sliding grooves 14 at corresponding positions. The sliding plates 13 are inserted into the sliding grooves 14, so that the connecting rod 3 can be accurately installed inside the mounting sleeve 2.
[0028] Connecting plates 15 are evenly distributed on the surface of the connecting base 1, and pins 16 are inserted into the surface of each connecting plate 15. The connecting plates 15 and pins 16 are used to install the bracket.
[0029] The working process of the self-locking leg connector for a camera tripod in this embodiment is as follows: A mounting sleeve 2 is installed on the upper surface of the connector 1. The connecting rod 3 is inserted into the inner cavity of the mounting sleeve 2. A locking tongue 4 with an arc-shaped bottom is evenly distributed on the surface of the connecting rod 3, and a compression spring 5 is installed inside. A corresponding insertion groove 6 is opened on the inner wall of the mounting sleeve 2 to allow the locking tongue 4 to be inserted. During the connection operation, as the connecting rod 3 is inserted into the mounting sleeve 2, the arc-shaped bottom surface of the locking tongue 4 first contacts the inner wall of the mounting sleeve 2. As the insertion depth increases, the inner wall of the mounting sleeve 2 exerts a compressive force on the locking tongue 4. Because the compression spring 5 is installed inside the locking tongue 4, the compression spring 5 contracts and deforms after being compressed, allowing the locking tongue 4 to retract smoothly into the connecting rod 3 without obstructing the insertion of the connecting rod 3. When the connecting rod 3 is inserted into the appropriate position and the locking tongue 4 reaches the insertion slot 6, the compression spring 5 is no longer compressed by the inner wall of the mounting sleeve 2 and begins to return to its original state, generating an outward elastic force that pushes the locking tongue 4 to quickly insert into the insertion slot 6, thereby achieving a self-locking connection between the connecting rod 3 and the mounting sleeve 2. This self-locking structure makes the connection stable and reliable, effectively preventing the connecting rod 3 from falling out of the mounting sleeve 2 due to external forces during use, thus ensuring the stability and safety of the camera tripod.
[0030] Meanwhile, pressing plates 7 are evenly distributed on the surface of the mounting sleeve 2. A pressing rod 8 is installed on the inner side of the pressing plate 7 corresponding to the insertion slot 6 and inserted into the insertion slot 6. When it is necessary to disassemble the connecting rod 3, simply press the pressing plate 7. The pressing plate 7 drives the pressing rod 8 to move into the insertion slot 6. The pressing rod 8 exerts a pressing force on the locking tongue 4 inserted into the insertion slot 6, causing the locking tongue 4 to overcome the elastic force of the pressing spring 5 and retract into the connecting rod 3, thus exiting from the insertion slot 6. At this time, the self-locking state between the connecting rod 3 and the mounting sleeve 2 is released, and the connecting rod 3 can be easily pulled out of the mounting sleeve 2. The entire disassembly process is simple and convenient, requiring no complicated tools, greatly improving operational efficiency and allowing users to easily assemble and disassemble the camera tripod according to their actual needs.
[0031] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.
Claims
1. A self-locking leg connector for a camera tripod, comprising a connector base, an mounting sleeve mounted on the upper surface of the connector base, a connecting rod inserted into the inner cavity of the mounting sleeve, and locking tongues evenly distributed on the surface of the connecting rod, characterized in that: The bottom of the latch is arc-shaped, and a compression spring is installed on the inner side of the latch. The inner wall of the mounting sleeve is provided with a insertion groove corresponding to the latch, and the latch is inserted into the insertion groove. Pressing plates are evenly distributed on the surface of the mounting sleeve, and a pressing rod is installed on the inner side of the pressing plate corresponding to the insertion groove. The pressing rod is inserted into the insertion groove.
2. The self-locking leg connector for a camera tripod according to claim 1, characterized in that: Each pressing plate has a return spring installed on its inner side, and the other end of each return spring is connected to the surface of the mounting sleeve.
3. The self-locking leg connector for a camera tripod according to claim 1, characterized in that: Limiting rods are installed on both sides of the inner wall of the pressing plate, and limiting grooves are opened on the surface of the mounting sleeve at the corresponding positions of the limiting rods, and the limiting rods are inserted into the limiting grooves.
4. The self-locking leg connector for a camera tripod according to claim 1, characterized in that: The surface of the connecting rod is provided with mounting grooves at positions corresponding to the locking tongue, and the locking tongue is installed inside the mounting grooves.
5. The self-locking leg connector for a camera tripod according to claim 1, characterized in that: The surface of the connecting rod is evenly provided with sliding plates, and the mounting sleeve and the sliding plates are provided with sliding grooves at corresponding positions.
6. The self-locking leg connector for a camera tripod according to claim 1, characterized in that: The surface of the connector is evenly provided with connecting plates, and each connecting plate is provided with a pin.