Flat clamp

By introducing a limiting ring and a limiting block into the flat clamp, the problem of clamp wobble caused by accidental rotation of the knob is solved, achieving a stable and adjustable clamping effect.

CN223648226UActive Publication Date: 2025-12-09NINGBO YONGXIN PHOTOGRAPHY EQUIPMENT CO LTD
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Patent Information

Application Number
CN202520436654.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2025-12-09
Estimated Expiration
2035-03-13

AI Technical Summary

Technical Problem

In existing flat clamps, during operation, the knob may accidentally rotate, causing the clamp plate to shift position and resulting in the object shaking.

Method used

A flat-mouth clamp was designed. Through the combination of a limiting ring and a limiting block, the rotation of the rotating block is restricted, ensuring that the threaded rod and the knob no longer rotate when no adjustment is needed, thereby maintaining the stability of the clamp position. Through the cooperation of the spring and the connecting plate, the clamp position can be adjusted when needed.

Benefits of technology

It achieves stable clamping of objects, avoids clamping plate shaking caused by accidental rotation of the knob, and ensures clamping stability and adjustability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of camera shooting equipment, in particular to a plain end clamp which comprises a clamping base and a sliding groove formed in one side of the clamping base, a threaded rod is rotatably connected in the clamping base, one end of the threaded rod extends to the outside of the clamping base and is fixedly connected with a connecting rod, and one end of the connecting rod is fixedly connected with a rotating block. A rotary knob is fixedly connected to one end of the rotating block, a limiting ring is rotationally connected to the outer side of the rotating block, a limiting block for stopping rotation of the rotating block is arranged in the limiting ring, and a movable clamping plate is connected to the threaded rod in a threaded screwing mode; when the knob does not need to be continuously rotated, a worker loosens a connecting plate and pushes the connecting plate to rotate through the elastic force of a spring, at the moment, a limiting block is in contact with a limiting groove, so that a rotating block cannot continuously rotate, the knob and a threaded rod do not continuously rotate, and then the position of a movable clamping plate is kept stable; and therefore, the movable clamping plate and the fixed clamping plate are matched to clamp the object more stably.
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Description

Technical Field

[0001] This utility model relates to a flat clip, and more particularly to a flat clip, belonging to the technical field of camera equipment. Background Technology

[0002] In the field of photography, a flat clamp is a tool used to secure equipment. It is usually made of metal or high-strength plastic and has two flat clamping surfaces that can firmly hold objects.

[0003] A type of flat clamp that is widely used currently is typically operated by controlling a threaded rod with a knob, which in turn drives the clamping plate to move. However, once the clamping plate is fixed to an object, an unexpected rotation of the knob may cause the threaded rod to rotate, which will cause the position of the clamping plate to change, resulting in unnecessary shaking of the clamped object.

[0004] Therefore, it is urgent to improve the flat clamp to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a flat clamp that can not only provide stable clamping, but also prevents the knob from being easily turned, thus avoiding wobbling of the clamp plate.

[0006] To achieve the above objectives, the main technical solution adopted by this utility model includes: a flat clamp, comprising a clamping base and a sliding groove formed on one side of the clamping base, a threaded rod rotatably connected inside the clamping base, one end of the threaded rod extending to the outside of the clamping base and fixedly connected to a connecting rod, one end of the connecting rod fixedly connected to a rotating block, one end of the rotating block fixedly connected to a knob, a limiting ring rotatably connected to the outside of the rotating block, a limiting block for blocking the rotation of the rotating block being provided inside the limiting ring, and a movable clamping plate threadedly connected to the threaded rod.

[0007] Preferably, a transverse groove is provided on one side of the limiting ring, and the limiting ring is rotatably connected to a connecting plate via a rotating shaft, wherein both ends of the rotating shaft are fixedly connected to the inner wall of the limiting ring.

[0008] Preferably, the limiting block is fixedly installed on one end of the connecting plate near the rotating block, and the two ends of the connecting rod are fixedly connected to the rotating block and the threaded rod, respectively.

[0009] Preferably, a top block is fixedly installed at the end of the connecting plate away from the limiting block, and a spring is fixedly installed at the end of the top block away from the connecting plate.

[0010] Preferably, the end of the spring away from the top block is fixedly connected to the inner wall of the limiting ring.

[0011] Preferably, the limiting ring is fixedly connected to one side of the clamping base, and a plurality of limiting grooves are provided on the outer side of the rotating block, the limiting grooves being slidably connected to the limiting block.

[0012] Preferably, the movable clamping plate is slidably connected to the slide groove, a fixed clamping plate is fixedly installed at one end of the clamping base, and one end of the threaded rod is rotatably connected to the fixed clamping plate.

[0013] This utility model has at least the following beneficial effects:

[0014] 1. When the knob no longer needs to be rotated, the operator releases the connecting plate. The spring force pushes the connecting plate to rotate. At this time, the limit block contacts the limit groove, preventing the rotating block from rotating further. This stops the knob and threaded rod from rotating, thus stabilizing the position of the moving clamp. The combined action of the moving and fixed clamps makes the object clamped more securely.

[0015] 2. When the operator rotates the knob clockwise to drive the threaded rod to rotate, the moving clamp slides towards the fixed clamp. While the operator is rotating the knob, the operator presses the connecting plate at the end away from the limit block, causing the connecting plate to rotate. At this time, the spring is in a compressed state, and the limit block leaves the limit groove, allowing the operator to rotate the knob, thereby driving the threaded rod to rotate, so as to adjust the position of the moving clamp. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a three-dimensional structural diagram of a flat-mouth clip according to an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure between the knob and the threaded rod of a flat-mouth clamp in an embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure between the knob and the limiting ring of a flat clamp in an embodiment of this utility model;

[0020] Figure 4 This is a schematic cross-sectional view of the limiting ring structure of a flat-mouth clamp in an embodiment of this utility model.

[0021] In the diagram, 1 is the clamping base; 101 is the sliding groove; 2 is the threaded rod; 3 is the movable clamping plate; 4 is the fixed clamping plate; 5 is the knob; 6 is the rotating block; 601 is the limiting groove; 7 is the connecting rod; 8 is the limiting ring; 9 is the horizontal groove; 10 is the rotating shaft; 11 is the connecting plate; 12 is the limiting block; 13 is the spring; and 14 is the top block. Detailed Implementation

[0022] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0023] Examples, such as Figures 1-4 As shown, a flat clamp includes a clamping base 1 and a sliding groove 101 formed on one side of the clamping base 1. A threaded rod 2 is rotatably connected inside the clamping base 1. One end of the threaded rod 2 extends to the outside of the clamping base 1 and is fixedly connected to a connecting rod 7. One end of the connecting rod 7 is fixedly connected to a rotating block 6. One end of the rotating block 6 is fixedly connected to a knob 5. A limit ring 8 is rotatably connected to the outside of the rotating block 6. A limit block 12 for blocking the rotation of the rotating block 6 is provided inside the limit ring 8. A movable clamping plate 3 is threadedly connected to the threaded rod 2. By setting one end of the knob 5 to be fixedly connected to the connecting rod 7 through the rotating block 6, and the connecting rod 7 to be fixedly connected to the threaded rod 2, when the operator rotates the knob 5, the rotating block 6, the connecting rod 7 and the threaded rod 2 will rotate. At the same time, the threaded rod 2 is threadedly connected to the movable clamping plate 3, and when the threaded rod 2 rotates, the movable clamping plate 3 will slide inside the clamping base 1.

[0024] When the movable clamping plate 3 is moved to the appropriate position and the operator no longer needs to rotate the knob 5, the connection structure allows the limiting block 12 to contact the rotating block 6, thereby restricting the rotation of the rotating block 6 and the knob 5 fixedly installed with the rotating block 6. This prevents the threaded rod 2 from continuing to rotate, thus ensuring the stability of the movable clamping plate 3 and enabling it to stably clamp the object.

[0025] like Figure 3 as well as Figure 4As shown, furthermore, a transverse groove 9 is provided on one side of the limiting ring 8. The limiting ring 8 is rotatably connected to a connecting plate 11 via a rotating shaft 10. The two ends of the rotating shaft 10 are fixedly connected to the inner wall of the limiting ring 8. A limiting block 12 is fixedly installed on the connecting plate 11 near the rotating block 6. The two ends of the connecting rod 7 are fixedly connected to the rotating block 6 and the threaded rod 2, respectively. A top block 14 is fixedly installed on the connecting plate 11 away from the limiting block 12. A spring 13 is fixedly installed on the top block 14 away from the connecting plate 11. The end of the spring 13 away from the top block 14 is fixedly connected to the inner wall of the limiting ring 8. By providing a transverse groove 9 on one side of the limiting ring 8, and exposing the connecting plate 11 in the transverse groove 9, it is easier for operators to operate the connecting plate 11. By setting the top block 14 fixedly installed on the connecting plate 11 away from the limiting block 12, and... The top block 14 is fixedly connected to the inner wall of the limiting ring 8 via the spring 13. When the operator needs to rotate the knob 5, the operator presses the connecting plate 11 at the end away from the limiting block 12, causing the connecting plate 11 to rotate. At this time, the spring 13 is in a compressed state, and the limiting block 12 is away from the rotating block 6, allowing the operator to rotate the knob 5, thereby driving the threaded rod 2 to rotate, so as to adjust the position of the moving clamp 3. When it is no longer necessary to rotate the knob 5, the operator releases the connecting plate 11, and the elastic force of the spring 13 pushes the connecting plate 11 to rotate. At this time, the limiting block 12 contacts the rotating block 6, preventing the rotating block 6 from continuing to rotate, thus preventing the knob 5 and the threaded rod 2 from continuing to rotate, and the position of the moving clamp 3 remains stable.

[0026] like Figures 1-4 As shown, further, the limiting ring 8 is fixedly connected to one side of the clamping base 1, and several limiting grooves 601 are opened on the outer side of the rotating block 6. The limiting grooves 601 are slidably connected to the limiting block 12, the moving clamping plate 3 is slidably connected to the sliding groove 101, and a fixed clamping plate 4 is fixedly installed on one end of the clamping base 1. One end of the threaded rod 2 is rotatably connected to the fixed clamping plate 4. By opening several limiting grooves 601 on the outer side of the rotating block 6, when the operator releases the connecting plate 11, the elastic force of the spring 13 drives the connecting plate 11 to rotate, thereby fixing the... The limiting block 12 at one end of the connecting plate 11 is inserted into the limiting groove 601, thereby preventing the rotating block 6 from continuing to rotate. By setting a clamping base 1 with a fixed clamping plate 4 fixedly installed at the end away from the knob 5, when the operator rotates the knob 5 clockwise to drive the threaded rod 2 to rotate, the moving clamping plate 3 slides towards the fixed clamping plate 4, and the moving clamping plate 3 is slidably connected to the slide groove 101, ensuring the smooth movement of the moving clamping plate 3. Thus, the cooperation between the moving clamping plate 3 and the fixed clamping plate 4 makes the object clamped more securely.

[0027] When the staff rotates the knob 5 counterclockwise, the moving clamp 3 slides away from the fixed clamp 4.

[0028] In this embodiment, as Figures 1-4 As shown, the principle of the flat clamp provided in this embodiment is as follows:

[0029] When the operator rotates the knob 5 clockwise to rotate the threaded rod 2, the movable clamping plate 3 slides towards the fixed clamping plate 4. While rotating the knob 5, the operator presses the connecting plate 11 at the end away from the limiting block 12, causing the connecting plate 11 to rotate. At this time, the spring 13 is compressed, and the limiting block 12 leaves the limiting groove 601, allowing the operator to rotate the knob 5, thereby rotating the threaded rod 2 to adjust the position of the movable clamping plate 3. When it is no longer necessary to rotate the knob 5, the operator releases the connecting plate 11, and the spring force of the spring 13 pushes the connecting plate 11 to rotate. At this time, the limiting block 12 contacts the limiting groove 601, preventing the rotating block 6 from rotating further. This stops the rotation of the knob 5 and the threaded rod 2, thus stabilizing the position of the movable clamping plate 3. The combined action of the movable clamping plate 3 and the fixed clamping plate 4 provides a more secure clamping of the object.

[0030] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0031] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0032] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A flat clamp, comprising a clamping base (1) and a sliding groove (101) formed on one side of the clamping base (1), characterized in that: A threaded rod (2) is rotatably connected inside the clamping base (1). One end of the threaded rod (2) extends to the outside of the clamping base (1) and is fixedly connected to a connecting rod (7). One end of the connecting rod (7) is fixedly connected to a rotating block (6). One end of the rotating block (6) is fixedly connected to a knob (5). A limit ring (8) is rotatably connected to the outside of the rotating block (6). A limit block (12) for blocking the rotation of the rotating block (6) is provided inside the limit ring (8). A movable clamping plate (3) is threadedly connected to the threaded rod (2).

2. A flat-mouth clamp according to claim 1, characterized in that: A transverse groove (9) is provided on one side of the limiting ring (8). The limiting ring (8) is rotatably connected to a connecting plate (11) via a rotating shaft (10). The two ends of the rotating shaft (10) are fixedly connected to the inner wall of the limiting ring (8).

3. A flat-mouth clamp according to claim 2, characterized in that: The limiting block (12) is fixedly installed on the connecting plate (11) near the rotating block (6) at one end, and the two ends of the connecting rod (7) are fixedly connected to the rotating block (6) and the threaded rod (2) respectively.

4. A flat-mouth clamp according to claim 3, characterized in that: A top block (14) is fixedly installed on the end of the connecting plate (11) away from the limiting block (12), and a spring (13) is fixedly installed on the end of the top block (14) away from the connecting plate (11).

5. A flat-mouth clamp according to claim 4, characterized in that: The end of the spring (13) away from the top block (14) is fixedly connected to the inner wall of the limiting ring (8).

6. A flat-mouth clamp according to claim 1, characterized in that: The limiting ring (8) is fixedly connected to one side of the clamping base (1), and a plurality of limiting grooves (601) are provided on the outer side of the rotating block (6), and the limiting grooves (601) are slidably connected to the limiting block (12).

7. A flat-mouth clamp according to claim 1, characterized in that: The movable clamping plate (3) is slidably connected to the slide groove (101), and a fixed clamping plate (4) is fixedly installed at one end of the clamping base (1). One end of the threaded rod (2) is rotatably connected to the fixed clamping plate (4).