A type of anti-loosening and anti-movement locking camera thumb handle

Abstract

This utility model discloses a locking thumb grip for cameras that prevents loosening and slippage, including a cold shoe plug and a thumb grip handle. The cold shoe plug is inserted into the hot shoe of the camera. The top of the cold shoe plug has an installation cavity, and a rotating shaft is fixedly connected in the installation cavity. One end of the thumb grip handle has a rotating shaft hole, and the thumb grip handle is rotatably connected to the rotating shaft through the rotating shaft hole. It also includes a clamping locking structure connected to the top of the cold shoe plug for clamping and fixing the cold shoe plug to the hot shoe of the camera. This utility model uses a threaded post and a locking nut. After the cold shoe plug is inserted into the hot shoe of the camera, the distance between the locking nut and the cold shoe plug is reduced by rotating the locking nut clockwise. This tightly clamps the metal plate at the top of the hot shoe between the locking nut and the cold shoe plug, thereby achieving a firm connection between the cold shoe plug and the camera.

Description

Technical Field

[0001] This utility model relates to the field of camera thumb grip technology, specifically a locking camera thumb grip that prevents loosening and slippage. Background Technology

[0002] The camera thumb grip is an accessory specifically designed to improve the grip and stability of a camera, especially suitable for small or metal-bodied cameras. It effectively prevents slippage and optimizes the one-handed operation experience. It is installed via a hot shoe interface that fits the camera body, requiring no additional tools. Once fixed, it enhances grip strength, especially providing extra support in vertical shooting scenarios.

[0003] Currently, most camera thumb grips on the market are assembled by directly inserting the thumb grip plug into the hot shoe at the top of the camera. The thumb grip plug is slightly smaller than the hot shoe, typically by about 0.05mm on each side and top, and is secured by friction between the two. This assembly method is structurally simple and lacks an additional locking mechanism, leading to the following problems:

[0004] 1. Not securely fixed: Since it is fixed only by friction, the thumb handle is prone to loosening and shifting during camera use, especially after frequent movement, vibration or long-term holding;

[0005] 2. Damage to the hot shoe: As the usage time increases, the continuous squeezing and friction between the thumb grip plug and the hot shoe will cause the hot shoe to gradually enlarge. This will not only further aggravate the loosening problem of the thumb grip, but in severe cases, it may also cause fatal damage to the camera's hot shoe, affecting the normal connection and use of the camera and other accessories.

[0006] Therefore, it is necessary to design a locking camera thumb grip that prevents loosening and slippage to improve the above problems. Utility Model Content

[0007] To overcome the above-mentioned defects, this utility model provides a locking camera thumb grip that prevents loosening and slippage, aiming to solve the problem that the camera thumb grip is not securely fixed in the prior art and damages the camera's hot shoe after long-term use.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A locking, anti-loosening camera thumb grip includes a cold shoe plug and a thumb grip handle. The cold shoe plug is inserted into the hot shoe of the camera. The top of the cold shoe plug has a mounting cavity, and a rotating shaft is fixedly connected inside the mounting cavity. One end of the thumb grip handle has a rotating shaft hole, and the thumb grip handle is rotatably connected to the rotating shaft through the rotating shaft hole.

[0010] It also includes a clamping locking structure connected to the top of the cold shoe plug, used to clamp and fix the cold shoe plug to the hot shoe of the camera.

[0011] Preferably, the clamping locking structure includes a threaded post and a locking nut. The threaded post has a threaded hole at its center along the axial direction. The cold shoe plug has a first through hole. The threaded post and the cold shoe plug are connected and fixed by a first fixing screw passing through the first through hole and connected to the threaded hole. The locking nut is threaded to the outside of the threaded post.

[0012] Preferably, the threaded post is further provided with two through mounting holes, and a first positioning pin is fixedly connected to the bottom of the inner part of the mounting hole. The bottom end of the first positioning pin extends to the outside of the threaded post, and a positioning hole is provided on the top of the cold shoe plug for the first positioning pin to be inserted.

[0013] Preferably, the diameter of the locking nut is greater than the width of the camera's hot shoe opening.

[0014] Preferably, the outer circumferential wall of the locking nut is provided with a ring of anti-slip texture.

[0015] Preferably, the top of the threaded post is provided with a cold shoe opening, the cold shoe opening is provided with a second through hole, and the cold shoe opening and the threaded post are connected and fixed by a second fixing screw passing through the second through hole and connected to the threaded hole.

[0016] Preferably, the bottom of the cold shoe opening is fixedly connected to two second positioning pins, which are inserted into two mounting holes.

[0017] Preferably, a spring bead is embedded in the bottom of the thumb handle near the pivot hole, and a spring bead positioning hole is provided in the mounting cavity for the spring bead to be engaged.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This utility model, through the setting of a threaded post and a locking nut, after the cold shoe plug is inserted into the hot shoe of the camera, the distance between the locking nut and the cold shoe plug is reduced by rotating the locking nut clockwise. Utilizing the helical transmission principle between the threaded post and the locking nut, the locking nut moves downward along the threaded post. During the downward movement of the locking nut, a tensile force is generated between the locking nut, the cold shoe plug, and the threaded post forming a T-shaped screw. This tensile force acts directly on the metal plate at the top of the camera's hot shoe. As the locking nut is continuously tightened, the tensile force continues to increase, tightly clamping the metal plate between the locking nut and the cold shoe plug, thereby achieving a firm connection between the cold shoe plug and the camera.

[0020] 2. This utility model, through the design of a cold shoe mount, allows the user to connect photographic accessories by inserting the cold shoe mount into the mounting hole of the threaded post through the second positioning pin, assembling and positioning the cold shoe mount and the threaded post, and then connecting and fixing the cold shoe mount and the threaded post through the second fixing screw, thereby improving the stability of the connection between the cold shoe mount and the threaded post. The cold shoe mount can be used to assemble various photographic accessories, expanding the camera's functionality and meeting the shooting needs in different scenarios. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of the improved camera thumb grip;

[0022] Figure 2 A schematic diagram of the exploded structure of the thumb handle of an improved camera;

[0023] Figure 3 A schematic diagram of the thumb handle structure;

[0024] Figure 4 This is a schematic diagram of the cold shoe plug structure;

[0025] Figure 5 This is a schematic diagram of a threaded column structure;

[0026] Figure 6 This is a schematic diagram of the cold boot opening structure;

[0027] Figure 7 A schematic diagram of the assembly structure of the camera's hot shoe opening for the anti-loosening and anti-movement locking thumb grip.

[0028] In the diagram: 1. Cold shoe plug; 101. Mounting cavity; 102. Shaft; 103. Spring ball positioning hole; 104. First through hole; 105. Positioning hole; 2. Thumb handle; 201. Shaft hole; 202. Spring ball; 3. Threaded post; 301. Threaded hole; 302. Mounting hole; 4. First fixing screw; 5. First positioning pin; 6. Locking nut; 7. Cold shoe opening; 701. Second through hole; 8. Second fixing screw; 9. Second positioning pin. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0030] Example: Please refer to Figures 1-7This embodiment provides a locking, anti-loosening camera thumb grip, including a cold shoe plug 1 and a thumb grip handle 2. The cold shoe plug 1 is inserted into the hot shoe of the camera. The hot shoe is an inverted U-shaped metal interface groove. The hot shoe is existing technology and will not be described in detail here. The top of the cold shoe plug 1 has a mounting cavity 101, and a rotating shaft 102 is fixedly connected inside the mounting cavity 101. One end of the thumb grip handle 2 has a rotating shaft hole 201. The thumb grip handle 2 is rotatably connected to the rotating shaft 102 through the rotating shaft hole 201. The head 1 is inserted into the hot shoe of the camera, so that the thumb handle 2 is assembled with the camera. The thumb handle 2 is used for thumb grip to solve the problem of thumb suspension, increase the contact area with the body and improve hand-held stability. A spring ball 202 is embedded in the bottom of the thumb handle 2 near the pivot hole 201. The mounting cavity 101 has a spring ball positioning hole 103 for the spring ball 202 to be inserted. When the thumb handle 2 is rotated to the position, the spring ball 202 is inserted into the spring ball positioning hole 103 to position the thumb handle 2.

[0031] In this embodiment, as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the anti-loosening and anti-slip locking camera thumb grip also includes a clamping locking structure connected to the top of the cold shoe plug 1, used to clamp and fix the cold shoe plug 1 to the hot shoe of the camera. The clamping locking structure includes a threaded post 3 and a locking nut 6. A threaded hole 301 is axially formed at the center of the threaded post 3. A first through hole 104 is formed on the cold shoe plug 1. The threaded post 3 and the cold shoe plug 1 are connected and fixed by a first fixing screw 4 passing through the first through hole 104 and connected to the threaded hole 301. The locking nut 6 is threaded to the outside of the threaded post 3. The threaded post 3 and the cold shoe plug 1 are connected and fixed by the first fixing screw 4. The threaded post 3 forms an inverted T-shaped screw. After the cold shoe plug 1 is inserted into the hot shoe of the camera, the locking nut 6 is rotated clockwise to reduce the distance between the locking nut 6 and the cold shoe plug 1. Utilizing the helical transmission principle between the threaded post 3 and the locking nut 6, the locking nut 6 moves downward along the threaded post 3. During the downward movement of the locking nut 6, a tensile force is generated between the locking nut 6 and the T-shaped screw. This tensile force acts directly on the metal plate at the top of the camera's hot shoe. As the locking nut 6 is continuously tightened, the tensile force continues to increase, tightly clamping the metal plate between the locking nut 6 and the cold shoe plug 1, thereby achieving a secure connection between the cold shoe plug 1 and the camera.

[0032] In this embodiment, as Figure 4 and Figure 5As shown, the threaded post 3 also has two through mounting holes 302. The bottom of the mounting hole 302 is fixedly connected to a first positioning pin 5. The bottom of the first positioning pin 5 extends to the outside of the threaded post 3. The top of the cold shoe plug 1 has a positioning hole 105 for the first positioning pin 5 to be inserted. When assembling the threaded post 3 and the cold shoe plug 1, the first positioning pin 5 on the threaded post 3 is inserted into the positioning hole 105 of the cold shoe plug 1 to limit the radial movement of the threaded post 3, avoid the problem of the threaded post 3 rotating, and improve the stability of the connection between the threaded post 3 and the cold shoe plug 1.

[0033] In this embodiment, the diameter of the locking nut 6 is larger than the width of the camera's hot shoe, so that the locking nut 6 can be pressed against the top metal plate of the camera's hot shoe. A ring of anti-slip texture is provided on the outer circumferential wall of the locking nut 6 to increase friction and facilitate the rotation operation of the locking nut 6.

[0034] When a user needs to connect various photographic accessories such as microphones, fill lights, and flashes, in this embodiment, such as Figure 1 , Figure 2 and Figure 6 As shown, the top of the threaded post 3 is provided with a cold shoe opening 7, and a second through hole 701 is opened on the cold shoe opening 7. The cold shoe opening 7 and the threaded post 3 are connected and fixed by a second fixing screw 8 passing through the second through hole 701 and connected to the threaded hole 301. Two second positioning pins 9 are fixedly connected to the bottom of the cold shoe opening 7. The two second positioning pins 9 are aligned and inserted into two mounting holes 302. The cold shoe opening 7 is inserted into the mounting hole 302 of the threaded post 3 through the second positioning pins 9 to assemble and position the cold shoe opening 7 and the threaded post 3, so as to prevent the cold shoe opening 7 from rotating relative to the threaded post 3. Then, the cold shoe opening 7 and the threaded post 3 are connected and fixed by the second fixing screw 8, which improves the stability of the connection between the cold shoe opening 7 and the threaded post 3. The cold shoe opening 7 is used to assemble a variety of photographic accessories, which expands the function of the camera and meets the shooting needs in different scenarios.

[0035] It should be noted that in some scenarios where the demand for photographic accessories is low, the cold shoe mount 7, the second positioning pin 9, and the second fixing screw 8 can be omitted. In this case, only the cold shoe plug 1, thumb grip 2, threaded post 3, and locking nut 6 are retained. The thumb grip is directly tightened onto the camera's hot shoe mount using the locking nut 6. This simplification method can further reduce the weight of the camera's thumb grip and lower the cost, while still meeting basic camera grip requirements. For example, for users who only need to hold the camera stably and do not need to attach other photographic accessories, the simplified thumb grip is more convenient and practical.

[0036] Working principle: In use, the threaded post 3 and the cold shoe plug 1 are connected and fixed by the first fixing screw 4 passing through the first through hole 104 and connected to the threaded hole 301, so that the cold shoe plug 1 and the threaded post 3 form an inverted T-shaped screw. Then, the cold shoe plug 1 is inserted into the hot shoe of the camera. By rotating the locking nut 6 clockwise, the distance between the locking nut 6 and the cold shoe plug 1 is reduced. Utilizing the helical transmission principle between the threaded post 3 and the locking nut 6, the locking nut 6 moves downward along the threaded post 3. During the downward movement of the locking nut 6, a tensile force is generated between the locking nut 6 and the T-shaped screw. This tensile force acts directly on the metal plate at the top of the camera's hot shoe. As the locking nut 6 is continuously tightened, the tensile force continues to increase. The metal plate is tightly clamped between the locking nut 6 and the cold shoe plug 1, thus achieving a firm connection between the cold shoe plug 1 and the camera. This allows the thumb grip 2 to be assembled with the camera, providing a grip for the thumb and solving the problem of the thumb being suspended in the air. It also increases the contact area with the camera body and improves handheld stability. When the user needs to connect photographic accessories, the cold shoe opening 7 is aligned and inserted into the mounting hole 302 of the threaded post 3 through the second positioning pin 9. The cold shoe opening 7 and the threaded post 3 are then assembled and positioned, and the cold shoe opening 7 and the threaded post 3 are connected and fixed by the second fixing screw 8, improving the stability of the connection between the cold shoe opening 7 and the threaded post 3. The cold shoe opening 7 can be used to assemble various photographic accessories, expanding the camera's functionality and meeting the shooting needs in different scenarios.

[0037] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A locking thumb grip for cameras that prevents loosening and slippage, comprising a cold shoe plug (1) and a thumb grip handle (2), characterized in that: The cold shoe plug (1) is inserted into the hot shoe of the camera. The top of the cold shoe plug (1) has a mounting cavity (101). A rotating shaft (102) is fixedly connected in the mounting cavity (101). One end of the thumb handle (2) has a rotating shaft hole (201). The thumb handle (2) is rotatably connected to the rotating shaft (102) through the rotating shaft hole (201). It also includes a clamping locking structure connected to the top of the cold shoe plug (1) for clamping and fixing the cold shoe plug (1) to the hot shoe of the camera.

2. The anti-loosening and anti-shifting locking camera thumb handle according to claim 1, characterized in that: The clamping and locking structure includes a threaded post (3) and a locking nut (6). The threaded post (3) has a threaded hole (301) axially opened at the center. The cold shoe plug (1) has a first through hole (104). The threaded post (3) and the cold shoe plug (1) are connected and fixed by a first fixing screw (4) passing through the first through hole (104) and connected in the threaded hole (301). The locking nut (6) is threaded to the outside of the threaded post (3).

3. The anti-loosening and anti-shifting locking camera thumb handle according to claim 2, characterized in that: The threaded post (3) also has two through mounting holes (302) on it. The bottom of the mounting hole (302) is fixedly connected to a first positioning pin (5). The bottom of the first positioning pin (5) extends to the outside of the threaded post (3). The top of the cold shoe plug (1) has a positioning hole (105) for the first positioning pin (5) to be inserted.

4. The anti-loosening and anti-shifting locking camera thumb handle according to claim 2, characterized in that: The diameter of the locking nut (6) is greater than the width of the camera's hot shoe opening.

5. The anti-loosening and anti-shifting locking camera thumb handle according to claim 2, characterized in that: The locking nut (6) has a ring of anti-slip texture on its outer circumferential wall.

6. The anti-loosening and anti-shifting locking camera thumb handle according to claim 3, characterized in that: The top of the threaded post (3) is provided with a cold shoe opening (7), and a second through hole (701) is provided on the cold shoe opening (7). The cold shoe opening (7) and the threaded post (3) are connected and fixed by a second fixing screw (8) passing through the second through hole (701) and connected to the threaded hole (301).

7. The anti-loosening and anti-shifting locking camera thumb handle according to claim 6, characterized in that: The bottom of the cold shoe opening (7) is fixedly connected to two second positioning pins (9), which are aligned and inserted into two mounting holes (302).

8. The anti-loosening and anti-shifting locking camera thumb handle according to claim 1, characterized in that: A spring bead (202) is embedded in the bottom of the thumb handle (2) near the pivot hole (201), and a spring bead positioning hole (103) is provided in the mounting cavity (101) for the spring bead (202) to be inserted.

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