Clamping device

Abstract

An embodiment of the present application provides a clamping device, which includes a support, a sliding assembly, a first clamping arm and a second clamping arm. The support is provided with a sliding cavity; the sliding assembly is slidably arranged in the sliding cavity and can be extended or contracted; the first clamping arm and the second clamping arm are respectively hinged to opposite ends of the sliding assembly, and the first clamping arm and the second clamping arm are selectively in a storage state or a clamping state; wherein, in the storage state, the sliding assembly contracts, and the first clamping arm and the second clamping arm are stored in the sliding cavity; in the clamping state, the sliding assembly extends, and the first clamping arm and the second clamping arm extend out of the sliding cavity and are positioned at positions bent relative to the sliding assembly, and a clamping space is formed between the first clamping arm and the second clamping arm. When the clamping device provided by the embodiment of the present application is not in use, the first clamping arm and the second clamping arm can be stored in the sliding cavity, so that while avoiding occupying external space, the appearance consistency of the clamping device can be improved, and the overall appearance is more concise and beautiful.

Description

Technical Field

[0001] This application relates to the technical field of peripheral accessories for electronic devices, and particularly relates to a clamping device. Background Art

[0002] At present, the usage time and application scenarios of functions of portable electronic devices such as mobile phones and tablet computers are increasing. Some scenarios such as watching videos, driving navigation, and office applications require long-term use, and when using these electronic devices, it is often necessary to hold them with hands for a long time, which brings inconvenience to operations. These electronic devices can be fixed using clamping devices such as brackets. In related technologies, the electronic devices are clamped and fixed through clamping arms. However, these clamping arms are usually exposed outside and cannot be hidden when not in use, thus occupying a certain amount of space and looking very obtrusive visually, affecting the appearance consistency. Summary of the Invention

[0003] The purpose of this application is to propose a clamping device to solve the above problems. This application realizes the above purpose through the following technical solutions.

[0004] An embodiment of this application provides a clamping device, including a support, a sliding component, a first clamping arm, and a second clamping arm. The support is provided with a sliding cavity; the sliding component is slidably arranged in the sliding cavity and can be extended or contracted; the first clamping arm and the second clamping arm are respectively hinged to opposite ends of the sliding component, and the first clamping arm and the second clamping arm are selectively in a storage state or a clamping state; wherein, in the storage state, the sliding component contracts, and the first clamping arm and the second clamping arm are stored in the sliding cavity; in the clamping state, the sliding component extends, and the first clamping arm and the second clamping arm extend out of the sliding cavity and are positioned at positions bent relative to the sliding component, and a clamping space is formed between the first clamping arm and the second clamping arm.

[0005] In one embodiment, the first clamping arm and the second clamping arm are respectively hinged to the sliding component through a first rotating shaft and a second rotating shaft. A first torsion spring is sleeved outside the first rotating shaft, and the first torsion spring abuts against the first clamping arm and the sliding component to flip the first clamping arm to the clamping state; a second torsion spring is sleeved outside the second rotating shaft, and the second torsion spring abuts against the second clamping arm and the sliding component to flip the second clamping arm to the clamping state.

[0006] In one embodiment, the sliding component is provided with an activity space, and the clamping device further includes a buckle and an elastic member installed in the activity space. The elastic member abuts between the buckle and the sliding component; in the storage state, the buckle abuts against the wall surface of the sliding cavity and compresses the elastic member; in the clamping state, the elastic member extends and pushes the buckle out of the activity space to engage with the first clamping arm.

[0007] In one embodiment, the buckle includes a buckle body, a first convex post and a second convex post. The first convex post and the second convex post are arranged on the buckle body and are arranged in sequence along the elongation direction of the sliding component. The height of the first convex post is greater than that of the second convex post; the first convex post abuts against the wall surface of the sliding cavity in the storage state, and the second convex post engages with the first clamping arm in the clamping state.

[0008] In one embodiment, the sliding component is provided with a rotating groove communicating with the moving space. One end of the first clamping arm is provided with a clamping groove and is received in the rotating groove; the second convex post is inserted into the clamping groove in the clamping state and disengages from the clamping groove in the storage state.

[0009] In one embodiment, a convex post guiding inclined surface is provided on one side of the first convex post facing the contraction direction of the sliding component. When the sliding component contracts, the edge of the support can abut against the convex post guiding inclined surface to press the first convex post into the sliding cavity.

[0010] In one embodiment, the sliding component includes a first sliding member and a second sliding member. The first sliding member and the second sliding member are arranged side by side and can move away from or close to each other perpendicular to the arrangement direction to make the sliding component elongate or contract; the first clamping arm is hinged to the first sliding member, and the second clamping arm is hinged to the second sliding member.

[0011] In one embodiment, the first sliding member includes a first rack, and the second sliding member includes a second rack. The first rack and the second rack are arranged side by side; the clamping device further includes a central gear, which is located between the first rack and the second rack and meshes with the first rack and the second rack.

[0012] In one embodiment, the first sliding member further includes a first connecting seat, which is connected to one side of the first rack and extends towards the second rack and protrudes outside the first rack; the first clamping arm is hinged to the first connecting seat; the second sliding member further includes a second connecting seat, which is connected to one side of the second rack and extends towards the first rack and protrudes outside the second rack; the second clamping arm is hinged to the second connecting seat; in the storage state, the first rack is located below the second connecting seat, and the second rack is located below the first connecting seat.

[0013] In one embodiment, the clamping device further includes a driving motor, which is installed in the support and is in transmission connection with the central gear.

[0014] Compared with the prior art, the clamping device provided by the embodiment of the present application installs an extendable or retractable sliding component in the support, and respectively hinges a first clamping arm and a second clamping arm at opposite ends of the sliding component. When the clamping device needs to be used, the first clamping arm and the second clamping arm can extend out of the support and be positioned at positions bent relative to the sliding component, and can be used to clamp electronic devices such as mobile phones; when not in use, the first clamping arm and the second clamping arm can be received in the sliding cavity, so as to avoid occupying external space while improving the appearance consistency of the clamping device, reducing the thickness of the clamping device, and making the overall shape more concise and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 FIG. 9 is a schematic structural diagram of the clamping device provided by the embodiment of the present application in a retracted state.

[0017] Figure 2 FIG. 13 is an exploded view of the clamping device provided by the embodiment of the present application in a retracted state.

[0018] Figure 3 FIG. 17 is a schematic structural diagram of the clamping device provided by the embodiment of the present application in a clamping state.

[0019] Figure 4 FIG. 21 is a partial structural schematic diagram of the clamping device provided by the embodiment of the present application in a clamping state.

[0020] Figure 5 FIG. 25 is an exploded view of a partial structure of the clamping device provided by the embodiment of the present application in a retracted state.

[0021] Figure 6 FIG. 29 is an exploded view of a partial structure of the clamping device provided by the embodiment of the present application.

[0022] Figure 7 FIG. 33 is a sectional view of the clamping device provided by the embodiment of the present application in a retracted state.

[0023] Figure 8 FIG. 37 is a sectional view of the clamping device provided by the embodiment of the present application in a clamping state.

[0024] Figure 9 FIG. 41 is an exploded view of a partial structure of the clamping device provided by the embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present application and should not be construed as limiting the present application.

[0026] To enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0027] Please refer to Figures 1 to 4 As shown, the clamping device 100 provided in the embodiment of the present application includes a support 110, a sliding assembly 120, a first clamping arm 130, and a second clamping arm 140. The support 110 is provided with a sliding cavity 111, and the sliding assembly 120 is slidably disposed in the sliding cavity 111 and can be extended or contracted; the first clamping arm 130 and the second clamping arm 140 are respectively hinged to opposite ends of the sliding assembly 120, and the first clamping arm 130 and the second clamping arm 140 are selectively in a storage state (see Figure 1 or Figure 2 ) or a clamping state (see Figure 3 or Figure 4 ); wherein, in the storage state, the sliding assembly 120 contracts, and the first clamping arm 130 and the second clamping arm 140 are stored in the sliding cavity 111; in the clamping state, the sliding assembly 120 extends, and the first clamping arm 130 and the second clamping arm 140 extend out of the sliding cavity 111 and are positioned at positions bent relative to the sliding assembly 120, and a clamping space is formed between the first clamping arm 130 and the second clamping arm 140.

[0028] Among them, the slidable component 120 being extensible or contractible means that the overall length of the slidable component 120 can be extended or shortened. When the slidable component 120 extends, it can drive the first clamping arm 130 and the second clamping arm 140 to extend out of the sliding cavity 111. At this time, the first clamping arm 130 and the second clamping arm 140 can be positioned at positions bent relative to the slidable component 120. For example, the first clamping arm 130 and the second clamping arm 140 can be perpendicular to the slidable component 120, so that a clamping space can be formed between the first clamping arm 130 and the second clamping arm 140, which can be used to clamp electronic devices such as mobile phones and tablet computers. When the slidable component 120 contracts, it can drive the first clamping arm 130 and the second clamping arm 140 to be received in the sliding cavity 111. While avoiding the first clamping arm 130 and the second clamping arm 140 occupying external space, it can improve the appearance consistency of the clamping device 100, reduce the thickness of the clamping device 100, and make the overall shape more concise and beautiful.

[0029] In this embodiment, when the first clamping arm 130 and the second clamping arm 140 are received in the sliding cavity 111, the first clamping arm 130 and the second clamping arm 140 can be flipped to be flush with the slidable component 120, avoiding the first clamping arm 130, the second clamping arm 140 and the slidable component 120 being stacked in the thickness direction, thereby reducing the thickness of the clamping device 100.

[0030] In some embodiments, when the first clamping arm 130 and the second clamping arm 140 are received in the sliding cavity 111, the first clamping arm 130 and the second clamping arm 140 can also form a certain angle with the slidable component 120 respectively.

[0031] In this embodiment, the support 110 may include a bottom shell 112, a face shell 113 and a support plate 114. The face shell 113 is covered on the bottom shell 112, and the support plate 114 is installed between the bottom shell 112 and the face shell 113. As an example, the support plate 114 may be a circular plate-like structure, the bottom shell 112 may be a frustum-shaped shell structure, and the face shell 113 may be a cylindrical shell structure, and the face shell 113 is covered on one side of the lower bottom surface of the bottom shell 112.

[0032] On the side of the support plate 114 facing the face shell 113, two sliding limit plates 115 may be convexly provided. The two sliding limit plates 115 are arranged parallel to each other at intervals. The sliding cavity 111 is located between the two sliding limit plates 115. The slidable component 120 is slidably installed on the support plate 114 and abuts against the two sliding limit plates 115 to define the sliding path. As an example, the sliding limit plate 115 is generally a rectangular plate-like structure, and the extending direction of the sliding limit plate 115 may be consistent with the radial direction of the support plate 114.

[0033] The outer peripheral surface of the surface shell 113 is also provided with a first opening 1131 and a second opening 1132 opposite to each other. The two ends of the sliding cavity 111 are connected to the outside through the first opening 1131 and the second opening 1132 respectively. The first clamp arm 130 and the second clamp arm 140 can extend out of the sliding cavity 111 through the first opening 1131 and the second opening 1132 respectively.

[0034] The first clamping arm 130 may include a clamping portion 131, a clamping arm connecting portion 132 and a clamping arm limiting portion 133. The clamping portion 131 is connected between the clamping arm connecting portion 132 and the clamping arm limiting portion 133. The clamping arm connecting portion 132 is used to be hinged with the sliding assembly 120. The clamping portion 131 may be provided with a clamping groove 1311. When the clamping device 100 clamps an electronic device, the frame of the electronic device may be inserted into the clamping groove 1311 to improve the clamping stability.

[0035] The thickness of the clamp arm limiting portion 133 is greater than the thickness of the clamping portion 131. Both ends of the clamp arm limiting portion 133 in the thickness direction may protrude from the surface of the clamping portion 131. When the first clamp arm 130 is in the storage state, the clamp arm limiting portion 133 is embedded in the first opening 1131 and abuts against the periphery of the face shell 113 to prevent the first clamp arm 130 from being stored in place and further stored in the sliding cavity 111. A clamp arm appearance surface 1331 is also provided on the side of the clamp arm limiting portion 133 away from the clamping portion 131. The clamp arm appearance surface 1331 may cover the first opening 1131 in the storage state and smoothly transition with the outer peripheral surface of the face shell 113, thereby filling the gap formed by the first opening 1131 on the outer peripheral surface of the face shell 113 to form a complete outer peripheral surface. As an example, the face shell 113 is a cylindrical shell structure, and the clamp arm appearance surface 1331 is an arc surface with the same radius as the outer peripheral surface of the face shell 113.

[0036] In this embodiment, the structure of the second clamping arm 140 may be consistent with the structure of the first clamping arm 130 . For details, please refer to the above description about the first clamping arm 130 , which will not be repeated here.

[0037] Please also read Figure 2 and Figure 5As shown, the first clamping arm 130 and the second clamping arm 140 are respectively hinged to the sliding assembly 120 through the first rotating shaft 151 and the second rotating shaft 152. A first torsion spring 153 is sleeved outside the first rotating shaft 151, and the first torsion spring 153 abuts against the first clamping arm 130 and the sliding assembly 120 to flip the first clamping arm 130 to the clamping state; a second torsion spring 154 is sleeved outside the second rotating shaft 152, and the second torsion spring 154 abuts against the second clamping arm 140 and the sliding assembly 120 to flip the second clamping arm 140 to the clamping state. The clamping device 100 can realize the automatic flipping of the first clamping arm 130 and the second clamping arm 140 after extending out of the support 110 through the first torsion spring 153 and the second torsion spring 154, so that manual operation by the user is not required. Moreover, due to the torsion force provided by the deformation of the torsion spring, the ends of the first clamping arm 130 and the second clamping arm 140 can tightly abut against the sliding assembly 120, so that the first clamping arm 130 and the second clamping arm 140 can be positioned at positions bent relative to the sliding assembly 120.

[0038] In some embodiments, the first torsion spring 153 and the second torsion spring 154 are not necessary. For example, after the first clamping arm 130 and the second clamping arm 140 extend out of the sliding cavity 111, the user can manually flip the first clamping arm 130 and the second clamping arm 140 to the clamping state and can fix them on the outer peripheral surface of the front shell 113 by means of snap connection or the like, and can also position the first clamping arm 130 and the second clamping arm 140 at positions bent relative to the sliding assembly 120. As an example, the first clamping arm 130 is provided with a clamping post, and the front shell 113 is provided with a clamping groove. When the first clamping arm 130 is in the clamping state, the clamping post of the first clamping arm 130 is embedded in the clamping groove of the front shell 113, and the first clamping arm 130 can also be fixed in the clamping state.

[0039] The sliding assembly 120 may include a first sliding member 121 and a second sliding member 122. The first sliding member 121 and the second sliding member 122 are arranged side by side and can move away from or close to each other perpendicular to the arrangement direction, so that the sliding assembly 120 extends or contracts. The first clamping arm 130 is hinged to the first sliding member 121, and the second clamping arm 140 is hinged to the second sliding member 122. Among them, when the first sliding member 121 and the second sliding member 122 move away from each other, the length of the sliding assembly 120 extends; when the first sliding member 121 and the second sliding member 122 move close to each other, the length of the sliding assembly 120 contracts. By arranging the first sliding member 121 and the second sliding member 122 side by side instead of stacking them in the thickness direction, the clamping device 100 can reduce the overall thickness of the device to a certain extent.

[0040] In this embodiment, the first sliding member 121 and the second sliding member 122 are generally strip-shaped structures, and the first sliding member 121 and the second sliding member 122 are arranged side by side on the support plate 114. In some embodiments, the sliding assembly 120 can also be a telescopic rod structure, which can also achieve elongation or contraction.

[0041] The first sliding member 121 may include a first rack 1211, the second sliding member 122 includes a second rack 1221, and the first rack 1211 and the second rack 1221 are parallel to each other; the clamping device 100 may further include a central gear 160, which is rotatably installed in the support 110 and is located between the first rack 1211 and the second rack 1221. The central gear 160 meshes with both the first rack 1211 and the second rack 1221. The first sliding member 121 and the second sliding member 122 can be linked through the transmission of the gears. For example, by sliding the first sliding member 121, the second sliding member 122 can be driven to slide synchronously, or by rotating the central gear 160, the first sliding member 121 and the second sliding member 122 can be driven to slide synchronously, thereby simplifying the operation of the user.

[0042] In this embodiment, the first rack 1211 and the second rack 1221 are generally rectangular plate-shaped structures. The fact that the first rack 1211 and the second rack 1221 are parallel to each other means that the length directions of the first rack 1211 and the second rack 1221 are parallel to each other, and the sliding directions of the first rack 1211 and the second rack 1221 are consistent with their length directions.

[0043] The first sliding member 121 may further include a first connecting seat 1212, and the first connecting seat 1212 is connected to one side of the first rack 1211. In this embodiment, the first connecting seat 1212 is connected to the surface in the thickness direction of the first rack 1211, and the first connecting seat 1212 extends toward the second rack 1221 and protrudes outside the first rack 1211, and is spaced from the support plate 114. The first clamping arm 130 is hinged to the first connecting seat 1212. The first connecting seat 1212 protruding outside the first rack 1211 can increase the volume of the first connecting seat 1212, thereby improving the structural strength and ensuring the connection stability with the first clamping arm 130.

[0044] The second sliding member 122 may further include a second connecting seat 1222, and the second connecting seat 1222 is connected to one side of the second rack 1221. In this embodiment, the second connecting seat 1222 is connected to the surface in the thickness direction of the second rack 1221, and the second connecting seat 1222 extends toward the first rack 1211 and protrudes outside the second rack 1221, and is spaced apart from the support plate 114. The second clamping arm 140 is hinged to the second connecting seat 1222. The second connecting seat 1222 protruding outside the second rack 1221 can increase the size of the second connecting seat 1222, thereby improving the structural strength and ensuring the connection stability with the second clamping arm 140.

[0045] In the storage state, one end of the first rack 1211 may be located below the second connecting seat 1222, one end of the second rack 1221 may be located below the first connecting seat 1212, and both ends in the length direction of the first rack 1211 may be flush with both ends in the length direction of the second rack 1221, making the structure more compact and reducing the space occupied by the first sliding member 121 and the second sliding member 122 in the storage state.

[0046] In this embodiment, the sum of the thicknesses of the first rack 1211 and the first connecting seat 1212 may be approximately equal to the distance between the support plate 114 and the inner wall of the front shell 113, that is, the first rack 1211 abuts against the support plate 114, and the first connecting seat 1212 abuts against the inner wall of the front shell 113 to limit the movement range of the first sliding member 121. Similarly, the sum of the thicknesses of the second rack 1221 and the second connecting seat 1222 may be approximately equal to the distance between the support plate 114 and the front shell 113 to limit the movement range of the second sliding member 122.

[0047] The clamping device 100 may further include a drive motor 161 (see Figure 4 ), the drive motor 161 is installed in the support 110 and is in transmission connection with the central gear 160, and is used to drive the central gear 160 to rotate, thereby driving the first rack 1211 and the second rack 1221 to move away from or close to each other, realizing the automatic opening and storage of the first clamping arm 130 and the second clamping arm 140 without manual operation by the user.

[0048] In some embodiments, the user can manually rotate the central gear 160 through a rotating shaft extending outside the support 110, or directly manually pull out or press in the first clamping arm 130 and the second clamping arm 140, so that the drive motor 161 does not need to be configured.

[0049] In this embodiment, the driving motor 161 is installed on the side of the support plate 114 facing the bottom shell 112. The center gear 160 can be connected to the rotating shaft of the driving motor 161 through a gear assembly, or it can be directly mounted on the rotating shaft of the driving motor 161. Technical personnel in this field can design it according to actual needs.

[0050] Please also read Figure 6 , Figure 7 and Figure 8 As shown, the sliding assembly 120 is provided with an activity space 123, and the clamping device 100 further includes a buckle 171 and an elastic member 172 installed in the activity space 123, and the elastic member 172 abuts between the buckle 171 and the sliding assembly 120; in the storage state (see Figure 7 ), the buckle 171 abuts against the wall of the sliding cavity 111 and compresses the elastic member 172; in the clamping state (see Figure 8 ), the elastic member 172 stretches, and pushes the buckle 171 out of the active space 123 to engage with the first clamping arm 130. The clamping device 100 can prevent the first clamping arm 130 from turning over due to external force in the clamping state through the engagement of the buckle 171, thereby ensuring that the first clamping arm 130 can be firmly positioned in the clamping state.

[0051] In this embodiment, the first sliding member 121 and the second sliding member 122 are both provided with an active space 123, and a buckle 171 and an elastic member 172 are installed in each active space 123. The buckle 171 and the elastic member 172 on the first sliding member 121 are used to engage with the first clamping arm 130, and the buckle 171 and the elastic member 172 on the second sliding member 122 are used to engage with the second clamping arm 140.

[0052] In this embodiment, the first sliding member 121 may further include an elastic member pressing plate 1213. The side of the activity space 123 facing the support plate 114 penetrates the first rack 1211 and the first connecting seat 1212. The elastic member pressing plate 1213 is embedded in the side of the activity space 123 facing the support plate 114 to close the activity space 123. During assembly, the buckle 171 and the elastic member 172 may be installed in the activity space 123 in sequence, and the elastic member pressing plate 1213 may be covered to close the activity space 123. The elastic member 172 is supported between the buckle 171 and the elastic member pressing plate 1213 to complete the assembly. Similarly, the second sliding member 122 may also include an elastic member pressing plate 1213. The structure of the second sliding member 122 may refer to the first sliding member 121, and will not be repeated here.

[0053] In this embodiment, the elastic member 172 can be a spring or an elastic column made of an elastic material. On the side of the buckle 171 facing the elastic member pressing plate 1213, an elastic member installation groove 1714 can be provided. One end of the elastic member 172 is inserted into the elastic member installation groove 1714, and the other end protrudes out of the elastic member installation groove 1714 and abuts against the elastic member pressing plate 1213, which can ensure the installation stability of the elastic member 172.

[0054] In some embodiments, the buckle 171 is not necessary. For example, the first clamping arm 130 and the second clamping arm 140 can be positioned in the clamping state only by the torsion of the torsion spring. The user can manually flip the first clamping arm 130 or the second clamping arm 140 in the clamping state to increase the distance between the first clamping arm 130 and the second clamping arm 140, so as to clamp an electronic device with a larger shape, making the clamping device 100 suitable for clamping electronic devices with different shapes and sizes.

[0055] The buckle 171 can include a buckle body 1711, a first convex column 1712 and a second convex column 1713. The first convex column 1712 and the second convex column 1713 are provided on the buckle body 1711 and are arranged in sequence along the elongation direction of the sliding component 120 (see Figure 5 ). The height of the first convex column 1712 is greater than that of the second convex column 1713; the first convex column 1712 abuts against the wall surface of the sliding cavity 111 in the storage state and is received in the moving space 123; the second convex column 1713 extends out of the moving space 123 and engages with the first clamping arm 130 in the clamping state.

[0056] Among them, the first convex column 1712 and the second convex column 1713 protrude from the buckle body 1711. The height of the first convex column 1712 is the length of the first convex column 1712 protruding from the surface of the buckle body 1711, and the height of the second convex column 1713 is the length of the second convex column 1713 protruding from the surface of the buckle body 1711. The buckle 171 can be received in the moving space 123 by abutting the first convex column 1712 against the wall surface of the sliding cavity 111, and the first clamping arm 130 can be positioned by engaging the second convex column 1713 with the first clamping arm 130, with a clever structural design. At the same time, by reducing the height of the second convex column 1713, the installation space of the first clamping arm 130 can be avoided from being overly occupied, thereby reducing the thickness of the clamping device 100.

[0057] In this embodiment, the buckle body 1711 is generally a rectangular plate-like structure, and the first convex column 1712 and the second convex column 1713 can be cuboid columnar structures. Since the height of the first convex column 1712 is greater than that of the second convex column 1713, the elastic member installation groove 1714 can penetrate the buckle body 1711 and extend into the first convex column 1712.

[0058] Please refer to Figure 5 、Figure 7 , Figure 8 and Figure 9 As shown in Figure 7 , Figure 8 and Figure 9 , the sliding assembly 120 is provided with a rotating groove 124 communicating with the active space 123. One end of the first clamping arm 130 is received in the rotating groove 124 and is provided with a clamping groove 134 located in the rotating groove 124. The second convex post 1713 is inserted into the clamping groove 134 in the clamping state and disengages from the clamping groove 134 in the storage state. By providing the rotating groove 124 on the sliding assembly 120 to receive a part of the first clamping arm 130, the clamping device 100 can make reasonable use of space, thereby thinning the thickness of the clamping device 100.

[0059] In this embodiment, the clamping arm connecting portion 132 (see Figure 2 ) is provided with a clamping groove 134. The first connecting seat 1212 is provided with a rotating groove 124, and the rotating groove 124 is adapted to the size of the clamping arm connecting portion 132. The first clamping arm 130 is inserted into the rotating groove 124 through its clamping arm connecting portion 132. The first rotating shaft 151 passes through the clamping arm connecting portion 132 and the first connecting seat 1212 to realize the hinge connection between the first clamping arm 130 and the first connecting seat 1212.

[0060] On one side of the first convex post 1712 facing the contraction direction of the sliding assembly 120, there is a convex post guiding slope 1714. When the sliding assembly 120 contracts, the edge of the support 110 can abut against the convex post guiding slope 1714 to press the first convex post 1712 into the sliding cavity 111. At this time, the second convex post 1713 disengages from the clamping groove 134, so that the first clamping arm 130 can be flipped to a position flush with the sliding assembly 120, thereby completing the storage. Among them, the edge of the support 110 may refer to the edge of the front shell 113 (see Figure 2 ) located in the first opening 1131.

[0061] In this embodiment, the first convex post 1712 may have a right trapezoid structure. The lower bottom surface of the first convex post 1712 faces the second convex post 1713. The right waist of the first convex post 1712 is connected to the buckle body 1711, and the other waist of the first convex post 1712 forms the convex post guiding slope 1714.

[0062] The following combines Figures 1 to 9 , and takes the first clamping arm 130 as an example to introduce in detail the conversion process of the clamping device 100 between the storage state and the clamping state:

[0063] When the first clamping arm 130 is in the clamping state, the edge of the support 110 contacts the convex column guiding inclined surface 1714. When the sliding assembly 120 contracts, that is, when the first sliding member 121 and the second sliding member 122 approach each other, the edge of the support 110 presses the buckle 171 downward, thereby causing the second convex column 1713 to disengage from the card slot 134. After disengagement, the first sliding member 121 drags the first clamping arm 130 to continue moving towards the inside of the support 110 until the first clamping arm 130 contacts the edge of the support 110. At this time, the edge of the support 110 presses the first clamping arm 130, causing the first clamping arm 130 to overcome the acting force of the first torsion spring 153 and flip until it is in the same plane as the first sliding member 121. Then the first sliding member 121 continues to slide towards the second sliding member 122, and the first clamping arm 130 can be completely received in the sliding cavity 111, thereby achieving the hiding in appearance and reducing the thickness of the clamping device 100.

[0064] When the sliding assembly 120 extends, the first sliding member 121 drives the buckle 171 to slide away from the second sliding member 122. The convex column guiding inclined surface 1714 gradually rises and disengages from the support 110 under the action of the elastic member 172. When the convex column guiding inclined surface 1714 disengages from the edge of the support 110, the torsion spring force provided by the first torsion spring 153 causes the first clamping arm 130 to flip. When the first clamping arm 130 flips to the clamping state, the card slot 134 of the first clamping arm 130 rotates to the position of the second convex column 1713, and the second convex column 1713 can be inserted into the card slot 134 to position the first clamping arm 130 in the clamping state.

[0065] The above embodiments only represent several implementation manners of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A clamping device, characterized in that, Comprising: A support provided with a sliding cavity; A sliding component slidably disposed in the sliding cavity and capable of extending or contracting; And A first clamping arm and a second clamping arm respectively hinged to opposite ends of the sliding component, the first clamping arm and the second clamping arm selectively being in a retracted state or a clamping state; wherein, in the retracted state, the sliding component contracts, the first clamping arm and the second clamping arm are received in the sliding cavity, and the first clamping arm and the second clamping arm are flush with the sliding component; In the clamping state, the sliding component extends, the first clamping arm and the second clamping arm extend out of the sliding cavity and are positioned at positions bent relative to the sliding component, and a clamping space is formed between the first clamping arm and the second clamping arm; The sliding component is provided with an activity space, and the clamping device further includes a buckle and an elastic member installed in the activity space, the elastic member abutting between the buckle and the sliding component; in the retracted state, the buckle abuts against the wall surface of the sliding cavity and compresses the elastic member; in the clamping state, the elastic member extends and pushes the buckle out of the activity space to engage with the first clamping arm; The buckle includes a buckle body, a first convex column and a second convex column, the first convex column and the second convex column are provided on the buckle body and are arranged in sequence along the extending direction of the sliding component, and the height of the first convex column is greater than the height of the second convex column; the first convex column abuts against the wall surface of the sliding cavity in the retracted state, and the second convex column engages with the first clamping arm in the clamping state.

2. The clamping device according to claim 1, characterized in that, The first clamping arm and the second clamping arm are respectively hinged to the sliding component through a first rotating shaft and a second rotating shaft, a first torsion spring is sleeved outside the first rotating shaft, and the first torsion spring abuts against the first clamping arm and the sliding component to flip the first clamping arm to the clamping state; a second torsion spring is sleeved outside the second rotating shaft, and the second torsion spring abuts against the second clamping arm and the sliding component to flip the second clamping arm to the clamping state.

3. The clamping device according to claim 1, characterized in that, The sliding component is provided with a rotating groove communicating with the activity space, one end of the first clamping arm is provided with a clamping groove and is received in the rotating groove; the second convex column is embedded in the clamping groove in the clamping state and disengages from the clamping groove in the retracted state.

4. The clamping device according to claim 1, characterized in that A convex column guiding inclined surface is provided on one side of the first convex column facing the contracting direction of the sliding component, and when the sliding component contracts, the edge of the support can abut against the convex column guiding inclined surface to press the first convex column into the sliding cavity.

5. The clamping device according to any one of claims 1-4, characterized in that The sliding component includes a first sliding member and a second sliding member, the first sliding member and the second sliding member are arranged side by side and can move away from or close to each other perpendicular to the arrangement direction to make the sliding component extend or contract; the first clamping arm is hinged to the first sliding member, and the second clamping arm is hinged to the second sliding member.

6. The clamping device according to claim 5, wherein, The first sliding member includes a first rack, the second sliding member includes a second rack, and the first rack and the second rack are arranged side by side; the clamping device further includes a central gear, which is located between the first rack and the second rack and meshes with the first rack and the second rack.

7. The clamping device according to claim 6, characterized in that, The first sliding member further includes a first connecting seat, which is connected to one side of the first rack, extends toward the second rack and protrudes outside the first rack, and the first clamping arm is hinged to the first connecting seat; the second sliding member further includes a second connecting seat, which is connected to one side of the second rack, extends toward the first rack and protrudes outside the second rack, and the second clamping arm is hinged to the second connecting seat; in the storage state, the first rack is located below the second connecting seat, and the second rack is located below the first connecting seat.

8. The clamping device according to claim 6, characterized in that, The clamping device further includes a driving motor, which is installed in the support and is in transmission connection with the central gear.

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