Novel crab clamp structure

Abstract

The utility model discloses a novel crab clamp structure which comprises a clamp head seat with a strip-shaped groove in the bottom face, a first clamping block and a second clamping block are arranged below the clamp head seat, and a steering connecting ball head is integrally formed in the middle of the top face of the clamp head seat. A C-shaped groove is formed in the upper portion of the side wall of the first clamping block, a semicircular protrusion is arranged on the upper portion of the side wall of the second clamping block, and vertical kidney-shaped grooves are formed in the upper portions of the side walls of the first clamping block and the second clamping block. The semicircular protruding block of the second clamping block is inserted into the C-shaped groove and rotationally connected with the C-shaped groove through a movable shaft rod. And a locking screw rod and a butterfly nut are arranged between the first clamping block and the second clamping block. The universal rotating head is reasonable in structural arrangement, universal rotating head operation can be achieved by connecting the connecting ball head to the corresponding installation position, the universal rotating head is not prone to loosening or falling off due to limiting of the connecting ball head, use safety and reliability are improved, the butterfly nut is arranged, screwing and locking operation is convenient, and operation convenience and effectiveness are improved.

Description

Technical Field

[0001] This utility model belongs to the field of clamping structure technology, specifically relating to a novel crab claw clamping structure. Background Technology

[0002] Crab claw clamps are a common structure used for clamping and positioning objects, and are widely used in fields such as photography. Existing crab claw clamps include a connecting base, a first clamping block and a second clamping block that are rotatably connected to the connecting base by a pin, and the first clamping block and the second clamping block are connected by bolts. When clamping an object, the bolts are tightened. Although this can meet the general usage requirements, in actual applications, the connecting base is prone to loosening or falling off, affecting the stability of use. It is also not conducive to the connection of extended structures such as cameras or fill lights, thus limiting the application scenarios and making it difficult to meet market demands, thus limiting its applicability. Summary of the Invention

[0003] The purpose of this invention is to provide a novel crab claw clamp structure that is both structurally sound and easy to use.

[0004] The technical solution to achieve the purpose of this utility model is a novel crab claw clamp structure, including a clamp seat with a strip groove on the bottom surface, a first clamping block and a second clamping block arranged below the clamp seat, the top ends of the first clamping block and the second clamping block extending into the strip groove and respectively rotatably connected to the clamp seat by connecting pins, and a steering connecting ball head integrally formed in the middle of the top surface of the clamp seat.

[0005] The upper part of the side wall of the first clamping block is provided with a C-shaped groove, the upper part of the side wall of the second clamping block is provided with a semi-circular protrusion, and the upper part of the side wall of both the first clamping block and the second clamping block is provided with a vertical waist-shaped groove.

[0006] The semi-circular protrusion of the second clamping block is inserted into the C-shaped groove and is rotatably connected by a movable shaft;

[0007] A locking screw and a wing nut are provided between the first clamping block and the second clamping block;

[0008] The end of the locking screw is rotatably connected to the vertical waist-shaped groove of the first or second clamping block via a round shaft, and the wing nut is spirally connected to the end of the locking screw to clamp the first clamping block.

[0009] A further preferred embodiment is that each of the symmetrical sides of the clamp is inlaid with an extension connecting nut for connecting a camera and a fill light.

[0010] A further preferred embodiment is that a reset spring for opening the first clamping block and the second clamping block is provided between the middle of the strip groove and the top surface of the semi-circular protrusion.

[0011] A further preferred embodiment is that the end of the locking screw is provided with a limiting screw to prevent the wing nut from falling off.

[0012] A further preferred embodiment is that the clamping surfaces of the first clamping block and the second clamping block are C-shaped surfaces, and anti-slip pads are fixed on the C-shaped surfaces.

[0013] A further preferred embodiment is that the anti-slip pad is a soft pad.

[0014] A further preferred embodiment is that the chuck seat, the first clamping block, and the second clamping block are all metal structural components.

[0015] This utility model has positive effects: The structure of this utility model is reasonably designed. It has a swivel connecting ball head integrally formed on the chuck seat. During assembly, it is connected to the corresponding installation position through the connecting ball head. Not only can it realize the operation of the universal rotating head, but also, due to the limiting of the connecting ball head, it is not easy to loosen or fall off, thus improving the safety and reliability of use. In addition, it is equipped with a wing nut, which makes it easy to tighten and lock, improving the convenience and effectiveness of operation and making it highly applicable.

[0016] Furthermore, the chuck has an extension connecting nut, which can meet the needs of simultaneously connecting a camera and a fill light, thus meeting the usage requirements of different scenarios and improving ease of use and effectiveness. It also has a limit screw, which can effectively prevent the wing nut from falling off, improving the reliability of use and making it highly applicable. Attached Figure Description

[0017] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the specific structure of the connector in this utility model;

[0020] Figure 3 This is a schematic diagram of the locking screw, wing nut, and limit screw in this utility model.

[0021] Reference numerals: 1. Strip groove; 2. Chuck seat; 3. First clamping block; 4. Second clamping block; 5. Connecting pin; 6. Rotating connecting ball head; 7. C-shaped groove; 8. Semi-circular protrusion; 9. Vertical waist-shaped groove; 10. Movable shaft; 11. Locking screw; 12. Wing nut; 13. Round shaft; 14. Extending connecting nut; 15. Return spring; 16. Limit screw; 17. Anti-slip pad. Detailed Implementation

[0022] 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. Example

[0023] See Figures 1 to 3 As shown, a novel crab claw clamp structure includes a clamping head seat 2 with a strip-shaped groove 1 on its bottom surface. Below the clamping head seat are a first clamping block 3 and a second clamping block 4. The top ends of the first and second clamping blocks extend into the strip-shaped groove and are rotatably connected to the clamping head seat via connecting pins 5. In this embodiment, the clamping head seat, the first clamping block, and the second clamping block are all metal structural components. The first and second clamping blocks can be clamped or released on the bottom surface of the clamping head seat via the connecting pins, ensuring the effectiveness of the clamping.

[0024] Furthermore, in this embodiment, a swivel connecting ball head 6 is integrally formed in the center of the top surface of the chuck seat; after assembly, the swivel connecting ball head can not only achieve universal rotation operation, but also is not easy to loosen or fall off, thus improving the safety and reliability of use.

[0025] Furthermore, the upper part of the side wall of the first clamping block is provided with a C-shaped groove 7, the upper part of the side wall of the second clamping block is provided with a semi-circular protrusion 8, and the upper part of the side walls of both the first and second clamping blocks are provided with vertical waist-shaped grooves 9. During assembly, the semi-circular protrusion of the second clamping block is inserted into the C-shaped groove and rotatably connected by a movable shaft 10. The first and second clamping blocks are rotatably connected by a movable shaft, which not only ensures the effectiveness of clamping or opening operations, but also ensures the consistency of their movements, thus improving the stability of use.

[0026] In practical applications, a locking screw 11 and a wing nut 12 are provided between the first and second clamping blocks. During assembly, the end of the locking screw is rotatably connected to the vertical oblong groove of the first or second clamping block via a round shaft 13, and the wing nut is helically connected to the end of the locking screw to clamp the first clamping block. Through this structure, the clamping or loosening of the first and second clamping blocks can be achieved by rotating the wing nut, improving the convenience and effectiveness of operation.

[0027] Furthermore, each of the symmetrical sides of the chuck is inlaid with an extension connecting nut 14 for connecting a camera and a fill light. In this embodiment, the depth of the extension connecting nut can be machined and set as needed. It is mainly used for fixing the screw thread connection on the camera and the fill light, which can simultaneously meet the connection operation of the camera and the fill light, meet the usage needs of different application scenarios, and has strong applicability.

[0028] In this embodiment, a return spring 15 is provided between the middle of the strip-shaped groove and the top surface of the semi-circular protrusion for opening the first and second clamping blocks. When the connecting screw is released, the elastic action of the return spring causes the first and second clamping blocks to unfold outward, facilitating the clamping and placement of objects and improving ease of use and effectiveness.

[0029] Furthermore, in practical applications, the end of the locking screw is equipped with a limiting screw 16 to prevent the wing nut from falling off. This prevents the wing nut from falling off or dropping, improving its effectiveness and safety, and making it highly adaptable.

[0030] To improve clamping reliability, the clamping surfaces of the first and second clamping blocks are C-shaped, and anti-slip pads 17 are fixed on the C-shaped surfaces. The anti-slip pads are soft pads. This anti-slip pad is a conventional structure in the prior art; it can be fixed to the first and second clamping blocks by adhesive bonding or other common fixing methods, improving the convenience and effectiveness of the connection.

[0031] This utility model has positive effects: The structure of this utility model is reasonably designed. It has a swivel connecting ball head integrally formed on the chuck seat. During assembly, it is connected to the corresponding installation position through the connecting ball head. Not only can it realize the operation of the universal rotating head, but also, due to the limiting of the connecting ball head, it is not easy to loosen or fall off, thus improving the safety and reliability of use. In addition, it is equipped with a wing nut, which makes it easy to tighten and lock, improving the convenience and effectiveness of operation and making it highly applicable.

[0032] Furthermore, the chuck has an extension connecting nut, which can meet the needs of simultaneously connecting a camera and a fill light, thus meeting the usage requirements of different scenarios and improving ease of use and effectiveness. It also has a limit screw, which can effectively prevent the wing nut from falling off, improving the reliability of use and making it highly applicable.

[0033] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural parts described in the instruction manual can also be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0034] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. However, these obvious variations or modifications derived from the essential spirit of this utility model still fall within the protection scope of this utility model.

Claims

1. A novel crab clamp structure, comprising a clamp head base provided with a strip-shaped groove on the bottom surface, a first clamp block and a second clamp block are arranged below the clamp head base, the top ends of the first clamp block and the second clamp block extend into the strip-shaped groove and are rotatably connected to the clamp head base by connecting pins, characterized in that: The top surface of the chuck seat is integrally formed with a steering connecting ball head in the middle part; The upper part of the side wall of the first clamping block is provided with a C-shaped groove, the upper part of the side wall of the second clamping block is provided with a semicircular protrusion, and the upper part of the side wall of the first clamping block and the second clamping block is provided with a vertical waist-shaped slot; The semicircular protrusion of the second clamping block is inserted into the C-shaped groove and is rotatably connected through a movable shaft rod; A locking screw and a butterfly nut are arranged between the first clamping block and the second clamping block; The end of the locking screw is rotatably connected in the vertical waist-shaped slot of the first clamping block or the second clamping block through a round shaft, and the butterfly nut is screw-connected at the end of the locking screw to clamp the first clamping block.

2. A new crab clamp structure according to claim 1, characterized in that: The symmetric side surfaces of the chuck seat are inlaid with expansion connecting nuts for adapting cameras and light supplement lamps.

3. A new type of crab clamp structure according to claim 1, characterized in that: A reset spring for opening the first clamping block and the second clamping block is arranged between the middle part of the strip-shaped groove and the top surface of the semicircular protrusion.

4. The new type of crab clamp structure according to claim 1, characterized in that: The end of the locking screw is provided with a limiting screw for preventing the butterfly nut from falling off.

5. The new type of crab clamp structure according to claim 1, characterized in that: The clamping surfaces of the first clamping block and the second clamping block are C-shaped surfaces, and anti-skid gaskets are fixed on the C-shaped surfaces.

6. A new type of crab clamp structure according to claim 5, characterized in that: The anti-skid gaskets are soft gaskets.

7. A new type of crab clamp structure according to claim 1, characterized in that: The chuck seat, the first clamping block and the second clamping block are metal structural parts.

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