Support capable of controlling rotation of multiple joints by single hand

Abstract

The support comprises a first support rod, and the rear end of the first support rod is at least sequentially and rotationally connected with a second support rod and a third support rod; when the key is pressed down, the main sliding block slides forwards to enable the second elastic device to deform, so that the first convex teeth are separated from the first gear, the second convex teeth are separated from the second gear, and the first support rod and the second support rod as well as the second support rod and the third support rod can rotate freely and relatively; and when the key returns, the main sliding block slides backwards under the action of the restoring force of the second elastic device, so that the first convex teeth are meshed with the first gear, and the second convex teeth are meshed with the second gear, so that the first bracket rod and the second bracket rod cannot rotate freely, and the second bracket rod and the third bracket rod cannot rotate freely. The robot has the advantage that a single hand can control multi-joint rotation.

Description

Technical Field

[0001] This invention relates to the field of braces, and more particularly to a brace in which the rotation of multiple joints can be controlled by one hand. Background Technology

[0002] Electronic or photographic products, such as desk lamps, cameras, camcorders, mobile phones, and tablets, are often used in addition to being handheld. Their spatial position is adjusted by mounting them on stands, and these products are frequently adjusted vertically and / or horizontally. Current mounting stands require loosening joint screws to allow free adjustment of the corresponding joints, necessitating multiple steps and the use of both hands. However, these stands are ineffective when quick, one-handed adjustments are needed. Summary of the Invention

[0003] To address the aforementioned problems, the present invention aims to provide a support that allows for single-handed control of the rotation of multiple joints.

[0004] This invention is achieved through the following technical measures: a single-handed controllable multi-joint rotation bracket, comprising a first bracket rod, with at least a second bracket rod and a third bracket rod sequentially rotatably connected to the rear end of the first bracket rod; a button is provided on the first bracket rod; a main sliding block is provided inside the first bracket rod; a first protruding tooth is provided at the rear end of the main sliding block; a first gear is fixed at the rotational joint between the first bracket rod and the second bracket rod; when the first protruding tooth meshes with the first gear, it restricts the rotation between the first bracket rod and the second bracket rod; at least one connecting wire is also connected to the main sliding block; a second protruding tooth is also provided at the other end of the connecting wire; and at the rotational joint between the second bracket rod and the third bracket rod... A second gear is fixed in place. When the second convex tooth meshes with the second gear, it restricts the rotation between the second support rod and the third support rod. A second elastic device is also provided at the second convex tooth. When the main sliding block slides forward after the button is pressed, the second elastic device deforms, thereby disengaging the first convex tooth from the first gear and the second convex tooth from the second gear, allowing free relative rotation between the first support rod and the second support rod, and between the second support rod and the third support rod. When the button is released, the main sliding block slides backward under the restoring force of the second elastic device, thereby engaging the first convex tooth with the first gear and the second convex tooth with the second gear, preventing free rotation between the first support rod and the second support rod, and between the second support rod and the third support rod.

[0005] In a preferred embodiment, the first and second convex teeth are ratchet pawls, and the first and second gears are ratchet teeth.

[0006] As a preferred embodiment, the connecting line consists of an inner steel cable and an outer protective sleeve.

[0007] In a preferred embodiment, the main sliding block includes a button slider and a first limiting slider that are slidably disposed within a first support rod. The button slider and the first limiting slider are connected by a joint rod and thus move together. The front end of the first limiting slider is provided with a first protruding tooth.

[0008] As a preferred embodiment, a first elastic device is also provided between the first limiting slider and the first support rod.

[0009] In a preferred embodiment, one end of the connecting line is fixed to the first limiting slider, and the other end of the connecting line is fixed to the second limiting slider. The front end of the second limiting slider is provided with a second protruding tooth, and a second elastic device is provided between the second limiting slider and the second support rod.

[0010] In a preferred embodiment, the button includes a button shell, on which a connecting rod pressure block is fixed. One end of a connecting rod is rotatably connected to the connecting rod pressure block, and the other end of the connecting rod is rotatably connected to the main slider. Pressing the button shell causes the connecting rod pressure block to move radially inward toward the first support rod, thereby causing the main slider to slide forward through the swing of the connecting rod.

[0011] As a preferred embodiment, the front end of the first support rod is connected to a ball joint assembly.

[0012] In a preferred embodiment, the first limiting slider is slidably disposed at the rear end of the first support rod, and the first gear is fixed at the end of the second support rod near the first support rod.

[0013] In a preferred embodiment, the second limiting slider is slidably disposed at the rear end of the second support rod, and the second gear is fixed to the end of the third support rod near the second support rod.

[0014] This invention utilizes a button to drive a main sliding block to slide, thereby locking the main sliding block into the first connecting joint of the bracket. At least one connecting wire is connected to the main sliding block, which can engage and disengage the connecting joint at the rear of the bracket. Therefore, pressing the button allows multiple connecting joints of the bracket to separate and rotate freely. When it is necessary to rotate a bracket with multiple joints, only one hand needs to press the button to separate each connecting joint, thereby moving the bracket so that its front end rotates to the desired position. Releasing the button allows each tooth to engage with the corresponding gear groove, thus fixing the bracket in that position. Therefore, this bracket has the technical advantage of allowing one-handed control of multiple joints to rotate to the appropriate position. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a bracket for single-handed control of multi-joint rotation according to an embodiment of the present invention.

[0016] Figure 2This is a cross-sectional view showing the connection relationship between the first support rod and the second support rod in an embodiment of the present invention.

[0017] Figure 3 This is a cross-sectional view showing the connection relationship between the second and third support rods in an embodiment of the present invention. Figure 4 This is a schematic diagram of the structure of the first limiting slider in an embodiment of the present invention.

[0018] Figure 5 This is a schematic diagram of the structure of the second limiting slider in an embodiment of the present invention. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the embodiments and the accompanying drawings.

[0020] This embodiment describes a bracket for single-handed control of multi-joint rotation; please refer to the attached document. Figures 1 to 5 The system includes a first support rod 2, with at least a second support rod 12 and a third support rod 16 sequentially rotatably connected to its rear end. A button is provided on the first support rod 2. A main sliding block is provided inside the first support rod 2, and a first protruding tooth 91 is provided at the rear end of the main sliding block. A first gear 10 is fixed at the rotational joint between the first support rod 2 and the second support rod 12. When the first protruding tooth 91 meshes with the first gear 10, it restricts the rotation between the first support rod 2 and the second support rod 12. At least one connecting line 11 is also connected to the main sliding block, and a second protruding tooth 141 is also provided at the other end of the connecting line 11. A second gear 15 is fixed at the rotational joint between the second support rod 12 and the third support rod 16, and the second protruding tooth 141 meshes with the second gear 16. Gear 15 restricts the rotation between the second support rod 12 and the third support rod 16. A second elastic device 13 is also provided at the second protruding tooth 141. When the main sliding block slides forward after the button is pressed, the second elastic device 13 deforms, thereby disengaging the first protruding tooth 91 from the first gear 10 and the second protruding tooth 141 from the second gear 15, allowing free relative rotation between the first support rod 2 and the second support rod 12, and between the second support rod 12 and the third support rod 16. When the button is released, the main sliding block slides backward under the restoring force of the second elastic device 13, thereby engaging the first protruding tooth 91 with the first gear 10 and engaging the second protruding tooth 141 with the second gear 15, preventing free rotation between the first support rod 2 and the second support rod 12, and between the second support rod 12 and the third support rod 16.

[0021] This bracket utilizes a button to drive a main sliding block, which then engages the first connecting joint of the bracket. At least one connecting wire is attached to the main sliding block, allowing it to disengage from the connecting joint at the rear of the bracket. Pressing the button separates multiple connecting joints, enabling free rotation. Thus, when rotating a multi-joint bracket, only one hand needs to press the button to separate each joint, moving the bracket to the desired position. Releasing the button then engages the teeth with the corresponding gears, fixing the bracket in place. Therefore, this bracket offers the technical advantage of single-handed control of multiple joints to the appropriate position.

[0022] In an embodiment of a bracket that allows for single-handed control of multi-joint rotation, please refer to... Figure 1-5 Based on the previous technical solution, the first convex tooth 91 and the second convex tooth 141 can be pawls, and the first gear 10 and the second gear 15 can be ratchet teeth. By utilizing the structure of pawls and ratchet teeth, each joint can rotate against gravity under any circumstances, while under gravity, the pawls and ratchet teeth need to be separated before rotation.

[0023] In an embodiment of a bracket that allows for single-handed control of multi-joint rotation, please refer to... Figure 1-5 Based on the previous technical solution, the connecting line 11 can also be composed of an internal steel cable and an external protective sleeve, similar to the structure of a bicycle brake cable. This allows the connecting line 11 to bypass the joint where the first support rod 2 and the second support rod 12 are connected without affecting the transmission of tension.

[0024] In an embodiment of a bracket that allows for single-handed control of multi-joint rotation, please refer to... Figure 1 , 2 and Figure 4 Based on the above technical solution, the main sliding block may include a button slider 6 and a first limiting slider 9 slidably disposed in the first support rod 2. The button slider 6 and the first limiting slider 9 are connected by a joint rod 7 and thus move together. The front end of the first limiting slider 9 is provided with a first protruding tooth 91.

[0025] In an embodiment of a bracket that allows for single-handed control of multi-joint rotation, please refer to... Figure 1 , 2 and Figure 4 In addition to the above technical solutions, a compression spring can also be provided on the joint rod 7, and the compression spring is located between the first limiting slider 9 and the inner wall of the first support rod 2.

[0026] In an embodiment of a bracket that allows for single-handed control of multi-joint rotation, please refer to... Figure 1 , 3 and Figure 5Based on the above technical solution, a more specific option is that a slot 92 is provided on the first limiting slider 9, one end of the connecting line 11 is fixed in the slot 92, and the other end of the connecting line 11 is fixed with a second limiting slider 14. A second protruding tooth 141 is provided at the front end of the second limiting slider 14, and a second elastic device 13 is provided between the second limiting slider 14 and the second support rod 12.

[0027] In an embodiment of a bracket that allows for single-handed control of multi-joint rotation, please refer to... Figure 1-3 Based on the above technical solution, the button can also include a button shell 3, on which a connecting rod pressure block 4 is fixed. One end of a connecting rod 5 is rotatably connected to the connecting rod pressure block 4, and the other end of the connecting rod 5 is rotatably connected to the button slider 6. Pressing the button shell 3 causes the connecting rod pressure block 4 to move radially inward toward the first support rod 2, thereby causing the button slider 6 to drive the first limit slider 9 to slide forward through the swing of the connecting rod 5.

[0028] In an embodiment of a bracket that allows for single-handed control of multi-joint rotation, please refer to... Figure 1-3 In addition to the above technical solutions, the front end of the first support rod 2 can be connected to a ball head assembly 1.

[0029] In an embodiment of a bracket that allows for single-handed control of multi-joint rotation, please refer to... Figure 1-2 In addition to the above technical solutions, the first limiting slider 9 can be slidably disposed at the rear end of the first support rod 2, and the first gear 10 can be fixed at the end of the second support rod 12 near the first support rod 2.

[0030] In an embodiment of a bracket that allows for single-handed control of multi-joint rotation, please refer to... Figure 1 and Figure 3 In addition to the above technical solutions, the second limiting slider 14 can be slidably disposed at the rear end of the second support rod 12, and the second gear 15 can be fixed at the end of the third support rod 16 near the second support rod 12.

[0031] The above describes the bracket for single-handed control of multi-joint rotation of the present invention, which is used to help understand the present invention. However, the implementation of the present invention is not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the principle of the present invention should be considered as equivalent substitutions and are included within the protection scope of the present invention.

Claims

1. A bracket for single-handed control of multi-joint rotation, characterized in that: The system includes a first support rod, with at least a second support rod and a third support rod sequentially rotatably connected to its rear end. A button is provided on the first support rod. A main sliding block is disposed within the first support rod, and a first protruding tooth is provided at the rear end of the main sliding block. A first gear is fixed at the rotational joint between the first and second support rods. When the first protruding tooth meshes with the first gear, it restricts the rotation between the first and second support rods. At least one connecting wire is also connected to the main sliding block, and a second protruding tooth is also provided at the other end of the connecting wire. A second gear is fixed at the rotational joint between the second and third support rods, and the second protruding tooth meshes with... When engaged with the second gear, the rotation between the second and third support rods is restricted. A second elastic device is also provided at the second protruding tooth. When the main sliding block slides forward after the button is pressed, the second elastic device deforms, thereby disengaging the first protruding tooth from the first gear and the second protruding tooth from the second gear, allowing free relative rotation between the first and second support rods and between the second and third support rods. When the button is released, the main sliding block slides backward under the restoring force of the second elastic device, thereby engaging the first protruding tooth with the first gear and the second protruding tooth with the second gear, preventing free rotation between the first and second support rods and between the second and third support rods.

2. The bracket for single-handed control of multi-joint rotation according to claim 1, characterized in that: The first and second convex teeth are ratchet pawls, and the first and second gears are ratchet teeth.

3. The bracket for single-handed control of multi-joint rotation according to claim 1, characterized in that: The connecting line consists of an inner steel cable and an outer protective sleeve.

4. The bracket for single-handed control of multi-joint rotation according to claim 1, characterized in that: The main sliding block includes a button slider and a first limiting slider that are slidably disposed in the first support rod. The button slider and the first limiting slider are connected by a joint rod and thus move together. The front end of the first limiting slider is provided with a first protruding tooth.

5. The bracket for single-handed control of multi-joint rotation according to claim 4, characterized in that: A first elastic device is also provided between the first limiting slider and the first support rod.

6. The bracket for single-handed control of multi-joint rotation according to claim 4, characterized in that: One end of the connecting line is fixed to the first limiting slider, and the other end of the connecting line is fixed to the second limiting slider. The front end of the second limiting slider is provided with a second protruding tooth, and a second elastic device is provided between the second limiting slider and the second support rod.

7. The bracket for single-handed control of multi-joint rotation according to claim 1, characterized in that: The button includes a button shell, on which a connecting rod pressure block is fixed. One end of a connecting rod is rotatably connected to the connecting rod pressure block, and the other end of the connecting rod is rotatably connected to the main slider. Pressing the button shell causes the connecting rod pressure block to move radially inward toward the first support rod, thereby causing the main slider to slide forward through the swing of the connecting rod.

8. The bracket for single-handed control of multi-joint rotation according to claim 1, characterized in that: The front end of the first support rod is connected to a ball joint assembly.

9. The bracket for single-handed control of multi-joint rotation according to claim 4, characterized in that: The first limiting slider is slidably disposed at the rear end of the first support rod, and the first gear is fixed at the end of the second support rod near the first support rod.

10. The bracket for single-handed control of multi-joint rotation according to claim 6, characterized in that: The second limiting slider is slidably disposed at the rear end of the second support rod, and the second gear is fixed at the end of the third support rod near the second support rod.

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