Clamping mechanism and shooting auxiliary device

Abstract

The utility model relates to the technical field of shooting auxiliary devices, in particular to a clamping mechanism and a shooting auxiliary device. The clamping mechanism comprises a connecting arm, an upper clamping piece and a lower clamping piece. The upper clamping piece is installed at one end of the connecting arm, and the lower clamping piece can be installed at the other end of the connecting arm in a stretching mode. Wherein a sliding block is arranged on the lower clamping piece, a sliding cavity is formed in the end, connected with the lower clamping piece, of the connecting arm, and the sliding block can be inserted into the sliding cavity in a sliding mode. According to the clamping mechanism, the sliding block is arranged on the lower clamping piece, correspondingly, the sliding cavity is formed in the end, connected with the lower clamping piece, of the connecting arm, and the sliding block can be inserted into the sliding cavity in a sliding mode. Thus, when the lower clamping piece is pulled, due to the cooperation of the sliding block and the sliding cavity, the guiding effect on pulling of the lower clamping piece can be achieved, the pulling stability of the lower clamping piece is improved, meanwhile, the overall stress of the lower clamping piece can be improved, and the lower clamping piece is not prone to being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of shooting auxiliary devices, in particular to a clamping mechanism and a shooting auxiliary device. Background Art

[0002] Shooting auxiliary devices such as selfie sticks are used to fix electronic devices such as mobile phones so that the electronic devices can be in a stable shooting state, or users can hold the shooting auxiliary devices to achieve selfies with a wider field of view and at a longer distance.

[0003] Auxiliary camera devices typically use a clamping mechanism to hold electronic devices such as mobile phones. To achieve a large clamping stroke while maintaining a compact size, the clamping mechanism is often configured as a two-way pull-out structure, meaning both the upper and lower clamping members of the clamping mechanism can be extended relative to the clamping mechanism's connecting arm. While this two-way pull-out structure can significantly reduce the length of the entire clamping mechanism, its applicability is limited. For example, when the lower clamping member is connected to the auxiliary camera device connector or to a rod, it can easily wobble, affecting its stability during extension. Utility Model Content

[0004] The embodiments of the present invention provide a clamping mechanism and a shooting auxiliary device to solve the problem in the prior art that when the pull-out lower clamping member is connected to the auxiliary shooting device connecting member or to the rod, the lower clamping member is prone to shaking, thereby affecting the stability of the lower clamping member when stretched.

[0005] The utility model discloses a clamping mechanism comprising a connecting arm, an upper clamping member, and a lower clamping member. The upper clamping member is mounted on one end of the connecting arm, and the lower clamping member is stretchably mounted on the other end of the connecting arm. The lower clamping member is provided with a sliding block, and a sliding cavity is defined at one end of the connecting arm where the lower clamping member is connected. The sliding block is slidably inserted into the sliding cavity.

[0006] Optionally, the lower clamping member includes a lower clamping seat, and the sliding block is arranged on the lower clamping seat.

[0007] Optionally, the lower clamping member further comprises a lower clamping portion, which is rotatably mounted on the lower clamping seat so that the lower clamping portion can be folded and stored on the connecting arm, and opened from the connecting arm.

[0008] Optionally, the lower clamping portion is rotatably mounted on the lower clamping seat via a torsion spring, and the torsion spring drives the lower clamping seat to open from the connecting arm; and / or

[0009] The lower clamping seat is provided with a first avoidance groove, and the lower clamping part is rotatably installed in the first avoidance groove.

[0010] Optionally, the sliding cavity is a special-shaped cavity, and the shape of the sliding block is adaptively set to the shape of the special-shaped cavity.

[0011] Optionally, the wall surface of the special-shaped cavity includes a first straight wall, a second straight wall, a first curved wall and a second curved wall;

[0012] The first straight wall and the second straight wall are arranged opposite to each other, and the first curved wall and the second curved wall are arranged opposite to each other; one side of the first curved wall is connected to one side of the first straight wall, and the other side is connected to one side of the second straight wall; one side of the second curved wall is connected to the other side of the first straight wall, and the other side is connected to the other side of the second straight wall; the width of the first straight wall is greater than the width of the second straight wall.

[0013] Optionally, the first curved wall includes two first curved sub-walls, one side of the two first curved sub-walls is connected to each other, the other side of one of the first curved sub-walls is connected to one side of the first straight wall, and the other side of the other first curved sub-wall is connected to one side of the second straight wall;

[0014] The second curved wall includes two second curved sub-walls, one side of the two second curved sub-walls is connected to each other, the other side of one second curved sub-wall is connected to the other side of the first straight wall, and the other side of the other second curved sub-wall is connected to the other side of the second straight wall.

[0015] The utility model also discloses a shooting auxiliary device, which comprises the above-mentioned clamping mechanism.

[0016] Optionally, the shooting auxiliary device also includes a first connecting head, a second connecting head and a telescopic rod, the lower clamping member is rotatably connected to the first connecting head, the first connecting head rotates with the second connecting head, and the second connecting head is installed on the telescopic rod; the rotation axis between the lower clamping member and the first connecting head is perpendicular to the rotation axis between the first connecting head and the second connecting head.

[0017] Optionally, an expansion structure is provided on the second connector, and the expansion structure is used for connecting an external expansion device.

[0018] Compared to the prior art, the clamping mechanism provided by the present invention has the following advantages: a sliding block is provided on the lower clamping member, and correspondingly, a sliding cavity is provided on the end of the connecting arm connected to the lower clamping member, into which the sliding block can be slidably inserted. Thus, when the lower clamping member is withdrawn, the cooperation between the sliding block and the sliding cavity can guide the withdrawal of the lower clamping member, thereby improving the stability of the withdrawal of the lower clamping member and improving the overall force applied to the lower clamping member, making the lower clamping member less susceptible to damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments, in which:

[0020] Figure 1 It is a schematic diagram of the clamping mechanism of an embodiment of the utility model;

[0021] Figure 2 This is an exploded schematic diagram of the clamping mechanism of an embodiment of the present utility model;

[0022] Figure 3 It is a schematic diagram of the clamping mechanism, the first connector and the second connector according to an embodiment of the present utility model;

[0023] Figure 4 Schematic diagram of a connecting arm according to an embodiment of the present utility model;

[0024] Figure 5 This is another schematic diagram of the clamping mechanism, the first connector, and the second connector according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of an auxiliary shooting device according to an embodiment of the present utility model;

[0026] Figure 7 This is another schematic diagram of the auxiliary shooting device according to an embodiment of the present utility model;

[0027] Figure 8 This is another schematic diagram of the clamping mechanism, the first connector, and the second connector according to an embodiment of the present invention.

[0028] The reference numerals in the figures are:

[0029] 1. Clamping mechanism; 11. Connecting arm; 111. Sliding cavity; 111a. First straight wall; 111b. Second straight wall; 111c. First curved wall; 111c1. First curved sub-wall; 111d. Second curved wall; 111d1. Second curved sub-wall; 112. Lower rod insertion hole; 113. Upper rod insertion hole; 12. Upper clamping member; 121. Upper clamping seat; 122. Upper pull rod; 13. Lower clamping member; 131. Sliding block; 132. Lower clamping seat; 132a. First avoidance groove; 133. Lower pull rod; 134. Lower clamping part; 135. Torsion spring; 14. First spring; 15. Second spring; 2. First connector; 3. Second connector; 31. Extension structure; 32. Connecting shaft; 4. Telescopic rod; 5. Handle; 51. Connecting tube; 52. Support foot; 6. Accommodating cavity. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. Now, in conjunction with the accompanying drawings, a detailed description of the preferred embodiments of the present utility model will be given.

[0031] The present invention provides a clamping mechanism 1. Figures 1 to 3As shown, the clamping mechanism 1 includes a connecting arm 11, an upper clamping member 12, and a lower clamping member 13. The upper clamping member 12 is mounted on one end of the connecting arm 11, and the lower clamping member 13 is stretchably mounted on the other end of the connecting arm 11. The lower clamping member 13 is provided with a sliding block 131. A sliding cavity 111 is defined at the end of the connecting arm 11 where the lower clamping member 13 is connected. The sliding block 131 is slidably inserted into the sliding cavity 111.

[0032] The clamping mechanism 1 of the present invention is provided with a sliding block 131 on the lower clamping member 13. Correspondingly, a sliding cavity 111 is provided on the end of the connecting arm 11 connected to the lower clamping member 13. The sliding block 131 can be slidably inserted into the sliding cavity 111. In this way, when the lower clamping member 13 is drawn, the cooperation between the sliding block 131 and the sliding cavity 111 can guide the drawing of the lower clamping member 13, improve the stability of the drawing of the lower clamping member 13, and also improve the overall force of the lower clamping member 13, making the lower clamping member 13 less likely to be damaged.

[0033] Specifically, the lower clamping member 13 can be stretchably mounted on the connecting arm 11, making the clamping space of the clamping mechanism 1 adjustable. The clamping mechanism 1 of the present invention can be used in a shooting auxiliary device for clamping electronic devices such as mobile phones, and can also be used in other devices requiring the clamping mechanism 1, without specific limitation herein.

[0034] Specifically, if Figure 4 As shown, the sliding cavity 111 is a special-shaped cavity, and the shape of the sliding block 131 is adaptively set to the shape of the special-shaped cavity. This solution can improve the assembly stability of the sliding block 131 by setting the sliding cavity 111 as a special-shaped cavity and setting the shape of the sliding block 131 accordingly.

[0035] More specifically, the walls of the irregular cavity include a first straight wall 111a, a second straight wall 111b, a first curved wall 111c, and a second curved wall 111d. The first straight wall 111a and the second straight wall 111b are disposed opposite each other, while the first curved wall 111c and the second curved wall 111d are disposed opposite each other. One side of the first curved wall 111c is connected to one side of the first straight wall 111a, and the other side is connected to one side of the second straight wall 111b. One side of the second curved wall 111d is connected to the other side of the first straight wall 111a, and the other side is connected to the other side of the second straight wall 111b. The width of the first straight wall 111a is greater than the width of the second straight wall 111b. The first curved wall 111c and the second curved wall 111d can create more space for the end face of the connecting arm 11, allowing for more space for the holes for the lower pull rod 133 and the upper pull rod 122 described below. The width of the first straight wall 111 a is greater than the width of the second straight wall 111 b , which can play a foolproof role, thereby avoiding incorrect assembly direction when assembling the sliding block 131 and improving assembly efficiency.

[0036] The first curved wall 111c includes two first curved sub-walls 111c1, one side of which is connected to each other, the other side of one first curved sub-wall 111c1 is connected to one side of the first straight wall 111a, and the other side of the other first curved sub-wall 111c1 is connected to one side of the second straight wall 111b. The second curved wall 111d includes two second curved sub-walls 111d1, one side of which is connected to each other, the other side of one second curved sub-wall 111d1 is connected to the other side of the first straight wall 111a, and the other side of the other second curved sub-wall 111d1 is connected to the other side of the second straight wall 111b.

[0037] Specifically, if Figure 1 and Figure 2 As shown, the lower clamping member 13 includes a lower clamping seat 132, and the sliding block 131 is arranged on the lower clamping seat 132. The lower clamping seat 132 serves as a bearing platform for the lower clamping member 13 and provides an installation position for the sliding block 131. The lower clamping member 13 also includes a lower pull rod 133, which is arranged on the lower clamping seat 132; a lower rod insertion hole 112 is provided at one end of the connecting arm 11 connected to the lower clamping member 13, and the lower pull rod 133 can be telescopically inserted into the hole of the lower pull rod 133; in the connecting arm 11, a first spring 14 is sleeved on the lower pull rod 133. Through the cooperation of the lower pull rod 133 and the first spring 14, it can be ensured that the lower clamping seat 132 is smoothly pulled and automatically retracted, that is, under the elastic force of the first spring 14, the lower clamping member 13 has a clamping force and can automatically reset. When the lower clamping seat 132 is stretched relative to the connecting arm 11, the first spring 14 is compressed and stores force. More specifically, two lower pull rods 133 and two lower insertion rod holes 112 are provided, and the two lower pull rods 133 are respectively inserted into the two lower insertion rods, and the first spring 14 is sleeved on the two lower pull rods 133 .

[0038] Further, combined with Figure 5As shown, the lower clamping member 13 further includes a lower clamping portion 134, which is rotatably mounted on the lower clamping seat 132 so that the lower clamping portion 134 can be folded and stored on the connecting arm 11, and opened from the connecting arm 11. The lower clamping portion 134 serves as a clamping component of the lower clamping member 13 in the lower clamping member 13. The lower clamping portion 134 is rotatably mounted on the lower clamping seat 132, which facilitates folding and storage. Specifically, the lower clamping portion 134 is rotatably mounted on the lower clamping seat 132 via a torsion spring 135, which drives the lower clamping seat to open from the connecting arm 11. The provision of the torsion spring 135 can provide the lower clamping portion 134 with a driving force to open from the connecting arm 11. During storage, when the lower clamping member 13 is received into, for example, the storage cavity of the outer rod of the telescopic rod 4 of the auxiliary shooting device or the storage cavity of the handle 5, the lower clamping portion 134 interferes with the wall of the storage cavity, thereby pushing the lower clamping portion 134 to overcome the elastic force of the torsion spring 135, and the lower clamping portion 134 is folded and stored on the connecting arm 11. In other words, this solution can store the clamping mechanism 1 in the storage cavity while pushing the lower clamping portion 134 to be stored on the connecting arm 11 through the interference between the lower clamping portion 134 and the wall of the storage cavity. There is no need to fold and store the lower clamping portion 134, which is simple to operate. When the clamping mechanism 1 is pulled out of the storage cavity, under the elastic force of the torsion spring 135, the lower clamping portion 134 automatically pops out from the connecting arm 11 and opens, and is in a usable state. There is no need to rotate the lower clamping portion 134, which is simple to operate.

[0039] Specifically, a first avoidance groove 132a is provided on the lower clamping seat 132, and the lower clamping portion 134 is rotatably mounted in the first avoidance groove 132a. The provision of the first avoidance groove 132a can facilitate the rotation and storage of the lower clamping portion 134.

[0040] On the other hand, the upper clamping member 12 can be configured to be stretchably mounted on one end of the connecting arm 11. Specifically, the upper clamping member 12 includes an upper clamping seat 121 and an upper pull rod 122, and the upper pull rod 122 is arranged on the upper clamping seat 121; an upper rod insertion hole 113 is provided at one end of the connecting arm 11 connected to the upper clamping member 12, and the upper pull rod 122 can be telescopically inserted into the hole of the upper pull rod 122; inside the connecting arm 11, a second spring 15 is sleeved on the upper pull rod 122. Through the cooperation of the upper pull rod 122 and the second spring, it is possible to ensure that the upper clamping seat 121 is smoothly pulled and automatically retracted, that is, driven by the elastic force of the second spring 15, the upper clamping member 12 has a clamping force and can automatically reset. When the upper clamping seat 121 is stretched relative to the connecting arm 11, the second spring 15 is compressed and stores force. More specifically, two upper pull rods 122 and two upper insertion rod holes 113 are provided, and the two upper pull rods 122 are respectively inserted into the two upper insertion rods, and the second spring 15 is sleeved on the two upper pull rods 122 .

[0041] like Figure 6 and Figure 7As shown, the utility model also discloses a shooting auxiliary device, including the above-mentioned clamping mechanism 1.

[0042] Specifically, if Figure 8 As shown, the shooting auxiliary device also includes a first connector 2, a second connector 3 and a telescopic rod 4. The lower clamping member 13 is rotatably connected to the first connector, the first connector 2 rotates with the second connector 3, and the second connector 3 is mounted on the telescopic rod 4. The rotation axis a between the lower clamping member 13 and the first connector 2 is perpendicular to the rotation axis b between the first connector 2 and the second connector 3. Through the rotation of the first connector 2 and the lower clamping member 13, the clamping mechanism 1 can rotate in four directions, front, back, left, and right, with multiple rotation angles and a large degree of freedom of rotation. Specifically, the lower clamping seat 132 of the lower clamping member 13 is rotatably connected to the first connector 2. The second connector 3 is mounted on the telescopic rod 4 via a plug-in shaft 32.

[0043] The second connector 3 is provided with an expansion structure 31 for connecting an external expansion device. The shooting assistance device of the present invention utilizes the second connector 3 with the expansion structure 31 as part of the connector, mounted between the clamping mechanism 1 and the telescopic rod 4. This ensures that the shooting assistance device can connect to an external expansion device while also avoiding the problem of insufficient structural strength of the upper clamping member 12 caused by placing the expansion structure 31 on the upper clamping member 12. The expansion structure 31 may be a threaded hole or a threaded post, for example.

[0044] Specifically, the problem of insufficient structural strength of the upper clamping member 12 due to the expansion structure 31 being provided on the upper clamping member 12 is that, firstly, the expansion structure 31 is often provided as a threaded hole or quick-release slot, which weakens the sheet-like or plate-like upper clamping member. Secondly, if the upper clamping member 12 is a stretchable structure, its inherent structural strength is not very strong. In this case, if an expansion device is connected to it, the expansion device itself has a certain weight, and the structural strength of the upper clamping member will also be insufficient to meet the requirements of connecting the external expansion device. The external expansion device can be a fill light, a microphone, or a speaker.

[0045] The shooting auxiliary device also includes a handle 5, which includes a connecting tube 51 and three legs 52 rotatably mounted on the connecting tube 51. The telescopic rod 4 is telescopically mounted in the connecting tube 51, which will not be described in detail here.

[0046] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Those skilled in the art may modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A clamping mechanism, characterized in that: The clamping mechanism comprises: Connecting arm an upper clamping member mounted on one end of the connecting arm; a lower clamping member, which can be stretched and mounted on the other end of the connecting arm; Wherein, a sliding block is provided on the lower clamping member, and a sliding cavity is provided at one end of the connecting arm connected to the lower clamping member, and the sliding block can be slidably inserted into the sliding cavity.

2. The clamping mechanism according to claim 1, characterized in that: The lower clamping member includes a lower clamping seat, and the sliding block is arranged on the lower clamping seat.

3. The clamping mechanism according to claim 2, characterized in that: The lower clamping member further comprises a lower clamping portion, which is rotatably mounted on the lower clamping seat so that the lower clamping portion can be folded and stored on the connecting arm, and opened from the connecting arm.

4. The clamping mechanism according to claim 3, characterized in that: The lower clamping portion is rotatably mounted on the lower clamping seat via a torsion spring, and the torsion spring drives the lower clamping member to open from the connecting arm; and / or The lower clamping seat is provided with a first avoidance groove, and the lower clamping part is rotatably installed in the first avoidance groove.

5. The clamping mechanism according to any one of claims 1 to 4, characterized in that: The sliding cavity is a special-shaped cavity, and the shape of the sliding block is adaptively arranged to the shape of the special-shaped cavity.

6. The clamping mechanism according to claim 5, characterized in that: The wall surface of the special-shaped cavity includes a first straight wall, a second straight wall, a first curved wall and a second curved wall; The first straight wall and the second straight wall are arranged opposite to each other, and the first curved wall and the second curved wall are arranged opposite to each other; one side of the first curved wall is connected to one side of the first straight wall, and the other side is connected to one side of the second straight wall; one side of the second curved wall is connected to the other side of the first straight wall, and the other side is connected to the other side of the second straight wall; the width of the first straight wall is greater than the width of the second straight wall.

7. The clamping mechanism according to claim 6, characterized in that: The first curved wall includes two first curved sub-walls, one side of the two first curved sub-walls is connected to each other, the other side of one of the first curved sub-walls is connected to one side of the first straight wall, and the other side of the other first curved sub-wall is connected to one side of the second straight wall; The second curved wall includes two second curved sub-walls, one side of the two second curved sub-walls is connected to each other, the other side of one of the second curved sub-walls is connected to the other side of the first straight wall, and the other side of the other second curved sub-wall is connected to the other side of the second straight wall.

8. A shooting assisting device, characterized in that: Comprising a clamping mechanism as claimed in any one of claims 1 to 7.

9. The shooting assisting device according to claim 8, wherein: The shooting auxiliary device also includes a first connecting head, a second connecting head and a telescopic rod. The lower clamping member is rotatably connected to the first connecting head, the first connecting head rotates with the second connecting head, and the second connecting head is installed on the telescopic rod; the rotation axis between the lower clamping member and the first connecting head is perpendicular to the rotation axis between the first connecting head and the second connecting head.

10. The shooting assisting device according to claim 9, wherein: The second connector is provided with an expansion structure, and the expansion structure is used for connecting an external expansion device.

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