A buckle locking structure, a foot tube and a support

Abstract

The utility model discloses a kind of buckle locking structure, foot pipe and support, buckle locking structure includes outer tube, inner tube, locking ring, push plate, pull rod and buckle;First U-shaped groove is arranged and radially penetrates in circumferential direction on outer tube, to construct out pressing plate;One end of push plate is connected with locking ring, other end has second locking seat with first locking seat opposite arrangement;Push plate can be in buckle when locking position Pushing and pressing plate and inner tube abut, to limit the axial movement between inner tube and outer tube, or, push plate can be in buckle when unlocking position Away from pressing plate, let pressing plate and inner tube separate, to make inner tube can be axially moved relative to outer tube;By opening first U-shaped groove on outer tube to construct the pressing plate that is resisted to inner tube, and then realize the axial movement or limit between outer tube and inner tube, the end of first U-shaped groove not penetrating outer tube, not only improve the stability of outer tube structure, and reduce the wear of each component, with very good practicability.

Description

Technical Field

[0001] This utility model relates to the field of photographic equipment, and in particular to a lever locking structure, leg tubes and bracket. Background Technology

[0002] A tripod is a tool used in photography to support and adjust shooting equipment. It typically has multiple legs, which are composed of multi-stage telescopic tubes, allowing for easy adjustment of the equipment's height. Among the locking structures for the relative positions of these telescopic tubes, the most widely used is the lever-locking structure. However, existing lever-locking structures require a slit in the outer tube. The lever, during rotation, presses against the outer tube, and the deformation of the telescopic tubes then presses against the inner tube, thus restricting the relative movement between them. This lever-locking structure causes irreversible damage to the outer tube's structure, affecting its structural strength. Therefore, a new lever-locking structure, legs, and tripod are urgently needed to solve these problems. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a lever locking structure, a foot tube, and a bracket.

[0004] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: a lever locking structure, including an outer tube, an inner tube, a locking ring, a push plate, a pull rod and a lever;

[0005] The outer tube is provided with a first U-shaped groove arranged circumferentially and extending radially to form a pressure plate;

[0006] The inner tube is inserted inside the outer tube;

[0007] The locking ring is sleeved on the outer tube and has a first locking seat;

[0008] One end of the push plate is connected to the locking ring, and the other end has a second locking seat arranged opposite to the first locking seat. The push plate abuts against the pressure plate.

[0009] The pull rod passes through the first locking seat and the second locking seat;

[0010] The lever is connected to one end of the pull rod and has a locked position and an unlocked position;

[0011] The push plate can push the pressure plate against the inner tube when the latch is in the locked position to restrict the axial movement between the inner tube and the outer tube. Alternatively, the push plate can move away from the pressure plate when the latch is in the unlocked position, causing the pressure plate to separate from the inner tube so that the inner tube can move axially relative to the outer tube.

[0012] As one of the preferred embodiments of this utility model, the locking ring is provided with a second U-shaped groove arranged circumferentially and extending radially to form a push plate.

[0013] In one of the preferred embodiments of this utility model, the locking ring is connected to the outer tube through a limiting component.

[0014] As one of the preferred embodiments of this utility model, the limiting component includes a nut screw, which passes through the locking ring and the outer tube.

[0015] As one of the preferred embodiments of this utility model, the limiting component includes a limiting block, a positioning groove is provided on the outer tube, and a recessed limiting groove is provided on the inner side wall of the locking ring. The depth of the limiting groove gradually increases along the circumference of the locking ring, and the limiting block is disposed in the positioning groove and extends into the limiting groove.

[0016] As one of the preferred embodiments of this utility model, the locking ring is provided with a mounting hole that communicates with the limiting groove, and the limiting block passes through the mounting hole and the limiting groove and enters the positioning groove.

[0017] In one of the preferred embodiments of this utility model, the pull rod is configured as a screw rod, which is threadedly connected to the buckle.

[0018] As one of the preferred embodiments of this utility model, a gasket is provided between the buckle and the first locking seat.

[0019] A foot tube, including the aforementioned lever locking structure.

[0020] A support, including the aforementioned leg tubes.

[0021] The beneficial effects of this utility model are as follows: A lever-locking structure, a foot tube, and a bracket are provided. The lever-locking structure includes an outer tube, an inner tube, a locking ring, a push plate, a pull rod, and a lever. The outer tube is provided with a first U-shaped groove arranged circumferentially and penetrating radially to form a pressure plate. The inner tube passes through the outer tube. The locking ring is sleeved on the outer tube and has a first locking seat. One end of the push plate is connected to the locking ring, and the other end has a second locking seat arranged opposite to the first locking seat. The push plate abuts against the pressure plate. The pull rod passes through the first and second locking seats. The lever is connected to one end of the pull rod and has a locking function. The push plate can push the pressure plate against the inner tube when the latch is in the locked position to restrict the axial movement between the inner tube and the outer tube. Alternatively, when the latch is in the unlocked position, the push plate can move away from the pressure plate, separating the pressure plate from the inner tube so that the inner tube can move axially relative to the outer tube. By creating a first U-shaped groove on the outer tube to construct a pressure plate that supports the inner tube, the axial movement or restriction between the outer tube and the inner tube can be achieved. The first U-shaped groove does not penetrate the end of the outer tube, which not only improves the stability of the outer tube structure but also reduces the wear of various components, making it very practical. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of a lever-locking structure;

[0024] Figure 2 An exploded view of a lever-locking structure;

[0025] Figure 3 This is a cross-sectional view of a lever-locking structure;

[0026] Figure 4 This is a schematic diagram of the outer tube. Detailed Implementation

[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0028] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0029] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0031] Reference Figures 1 to 4This utility model provides a lever locking structure, including an outer tube 10, an inner tube 20, a locking ring 30, a push plate 40, a pull rod 50, and a lever 60;

[0032] The outer tube 10 is provided with a first U-shaped groove 11 arranged circumferentially and extending radially to form a pressure plate 12;

[0033] The inner tube 20 is inserted inside the outer tube 10;

[0034] The locking ring 30 is sleeved on the outer tube 10 and has a first locking seat 31;

[0035] One end of the push plate 40 is connected to the locking ring 30, and the other end has a second locking seat 41 arranged opposite to the first locking seat 31. The push plate 40 abuts against the pressure plate 12.

[0036] The pull rod 50 passes through the first locking seat 31 and the second locking seat 41;

[0037] The lever 60 is connected to one end of the pull rod 50 and has a locked position and an unlocked position;

[0038] When the latch 60 is in the locked position, the push plate 40 can push the pressure plate 12 against the inner tube 20 to restrict the axial movement between the inner tube 20 and the outer tube 10. Alternatively, when the latch 60 is in the unlocked position, the push plate 40 can move away from the pressure plate 12, causing the pressure plate 12 to separate from the inner tube 20, so that the inner tube 20 can move axially relative to the outer tube 10.

[0039] In this utility model, the example of switching the latch 60 from the unlocked position to the locked position is used for explanation. When in use, the latch 60 is in the unlocked position and is rotating outwards. When the latch 60 is rotated inwards around its axis of rotation, the pull rod 50 (using the eccentric protrusion on the latch 60) will drive the second locking seat 41 towards the first locking seat 31, that is, the push plate 40 moves towards the inside of the outer tube 10, thereby pushing the pressure plate 12 towards the inside of the inner tube 20, so that the pressure plate 12 and the inner tube 20... The outer wall of the inner tube 20 is pressed against the outer tube 10 to restrict the axial movement between the inner tube 20 and the outer tube 10, thus completing the locking. When unlocking is required, the lever 60 is operated to rotate outward around its rotation axis. The second locking seat 41 loses the external pulling force and moves away from the first locking seat 31 under the action of the deformation of the push plate 40 itself. The pressure plate 12 loses the pushing force from the push plate 40 and moves towards the outside of the inner tube 20, so that the pressure plate 12 separates from the outer wall of the inner tube 20. At this time, the inner tube 20 can move axially relative to the outer tube 10, thus completing the unlocking.

[0040] Reference Figures 1-3In some embodiments, the locking ring 30 is provided with a second U-shaped groove 32 arranged circumferentially and extending radially to form a push plate 40. This arrangement enables the push plate 40 to be integrally formed with the locking ring 30, reducing the assembly of parts, reducing the complexity of the structure, and also reducing material and assembly costs.

[0041] Reference Figures 1-4 In some embodiments, the locking ring 30 is connected to the outer tube 10 via a limiting component 70. This configuration can limit the circumferential rotation and axial sliding between the locking ring 30 and the outer tube 10, thereby preventing the locking ring 30 from disengaging from the outer tube 10 when the latch 60 is in the unlocked state.

[0042] Reference Figures 2-4 As a first embodiment of the limiting component 70, the limiting component 70 includes a grommet screw 71a, which passes through the locking ring 30 and the outer tube 10. At least the outer tube 10 is provided with a threaded hole 72a. The locking ring 30 can be a through hole or a threaded hole. After the grommet screw 71a passes through the through hole or threaded hole on the locking ring 30, it is threadedly connected to the threaded hole 72a on the outer tube 10.

[0043] Reference Figures 1-4 As a second embodiment of the limiting component 70, the limiting component 70 includes a limiting block 71b, a positioning groove 72b on the outer tube 10, and a recessed limiting groove 73b on the inner sidewall of the locking ring 30. The depth of the limiting groove 73b gradually increases along the circumference of the locking ring 30. The limiting block 71b is disposed in the positioning groove 72b and extends into the limiting groove 73b. In a further embodiment, the locking ring 30 is provided with a mounting hole 74b communicating with the limiting groove 73b. The limiting block 71b passes through the mounting hole 74b, the limiting groove 73b, and enters the positioning groove 72b. During assembly, the limiting block 71b is inserted from the mounting hole 74b into the limiting groove 73b. Within b, the limiting block 71b is rotated by rotating the locking ring 30 or the outer tube 10 until the limiting block 71b enters the positioning groove 72b on the outer tube 10. Since the depth of the limiting groove 73b gradually increases along the circumference of the locking ring 30, when the locking ring 30 rotates to the point where the limiting block 71b abuts against the end of the limiting groove 73b, the locking ring 30 will no longer be able to rotate. Of course, the first and second embodiments of the limiting component 70 can coexist. The first embodiment of the limiting component 70 can not only restrict the movement between the locking ring 30 and the outer tube 10, but also make the buckles 60 on the multi-stage foot tube axially aligned, improving the aesthetics of the foot tube.

[0044] Reference Figures 1-3In some embodiments, the pull rod 50 is configured as a screw threaded onto the latch 60. This configuration allows for adjustment of the initial distance between the first locking seat 31 and the second locking seat 41, enabling adjustment when the locking force is insufficient or excessive, thus improving ease of use.

[0045] Reference Figures 1-3 In some embodiments, a gasket 80 is provided between the latch 60 and the first locking seat 31. Preferably, the gasket 80 is made of plastic, which can reduce the friction between the latch 60 and the first locking seat 31 and reduce wear. In a further embodiment, the gasket 80 is connected to the first locking seat 31 through a plurality of positioning pins 90.

[0046] This utility model also provides a foot tube, including the aforementioned buckle locking structure.

[0047] This utility model also provides a bracket, including the aforementioned leg tubes.

[0048] The advantages of this utility model are: by opening a first U-shaped groove on the outer tube to construct a pressure plate to support the inner tube, the axial movement or restriction between the outer tube and the inner tube can be realized. The first U-shaped groove does not penetrate the end of the outer tube, which not only improves the stability of the outer tube structure, but also reduces the wear of various components, and has very good practicality.

[0049] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A snap lock structure, characterized by: It includes an outer tube (10), an inner tube (20), a locking ring (30), a push plate (40), a pull rod (50), and a latch (60); The outer tube (10) is provided with a first U-shaped groove (11) arranged circumferentially and penetrating radially to form a pressure plate (12). The inner tube (20) passes through the outer tube (10); The locking ring (30) is sleeved on the outer tube (10) and has a first locking seat (31); One end of the push plate (40) is connected to the locking ring (30), and the other end has a second locking seat (41) arranged opposite to the first locking seat (31). The push plate (40) abuts against the pressure plate (12). The pull rod (50) passes through the first locking seat (31) and the second locking seat (41); The latch (60) is connected to one end of the pull rod (50) and has a locking position and an unlocking position; The push plate (40) can push the pressure plate (12) against the inner tube (20) when the buckle (60) is in the locked position, so as to restrict the axial movement between the inner tube (20) and the outer tube (10). Alternatively, the push plate (40) can move away from the pressure plate (12) when the buckle (60) is in the unlocked position, so that the pressure plate (12) is separated from the inner tube (20), so that the inner tube (20) can move axially relative to the outer tube (10).

2. The clamping structure of claim 1, wherein: The locking ring (30) is provided with a second U-shaped groove (32) arranged circumferentially and extending radially to form the push plate (40).

3. The clamping structure of claim 1, wherein: The locking ring (30) is connected to the outer tube (10) via a limiting component (70).

4. The clamping structure of claim 3, wherein: The limiting component (70) includes a nut screw (71a) which passes through the locking ring (30) and the outer tube (10).

5. The clamping structure of claim 3, wherein: The limiting component (70) includes a limiting block (71b), a positioning groove (72b) is provided on the outer tube (10), and a recessed limiting groove (73b) is provided on the inner side wall of the locking ring (30). The depth of the limiting groove (73b) gradually increases along the circumference of the locking ring (30). The limiting block (71b) is disposed in the positioning groove (72b) and extends into the limiting groove (73b).

6. A clamping structure according to claim 5, wherein: The locking ring (30) is provided with a mounting hole (74b) that communicates with the limiting groove (73b). The limiting block (71b) passes through the mounting hole (74b), the limiting groove (73b) and enters the positioning groove (72b).

7. The locking structure of claim 1, wherein: The pull rod (50) is configured as a screw, which is threaded onto the buckle (60).

8. The clamping structure of claim 1, wherein: A gasket (80) is provided between the buckle (60) and the first locking seat (31).

9. A foot tube characterized by: Includes the lever locking structure as described in any one of claims 1-8.

10. A stent, characterized in that: Includes the foot tube as described in claim 9.

Images