CN215488657U - Clamping assembly and clamping device for clamping mobile equipment - Google Patents

Abstract

A clamping assembly and a clamping device for clamping a mobile device are provided. The clamping assembly includes: the supporting piece comprises a first body and a first magnet arranged on the first body, the first body is provided with a clamping groove, and the side wall of the clamping groove is provided with at least one bead clamping groove; and the clamping piece comprises a second body, a second magnet arranged on the second body and capable of being magnetically attracted with the first magnet, a clamping jaw arranged on the second body and configured to clamp the mobile equipment, and at least one bead screw, wherein the second body is provided with a protruding part capable of being loaded into the clamping groove, the at least one bead screw is arranged on the protruding part, and each bead of the bead screw can be clamped into one bead clamping groove. This scheme can improve the stability of clamping device centre gripping mobile device and the convenience of operation.

Description

Clamping assembly and clamping device for clamping mobile equipment

Technical Field

The present disclosure relates to clamping devices, and particularly to a clamping assembly and a clamping device for clamping a mobile device.

Background

The mobile phone clip is a device for clamping a mobile phone to facilitate the use of the mobile phone by a user. The stability of the handset clip holding the handset and the convenience of operation are critical to determining whether it is widely accepted by consumers.

SUMMERY OF THE UTILITY MODEL

The embodiment of the disclosure provides a clamping assembly and a clamping device for clamping a mobile device, so that the stability of clamping the mobile device by the clamping device and the convenience of operation are improved.

According to an aspect of the present disclosure, there is provided a clamping assembly comprising: the supporting piece comprises a first body and a first magnet arranged on the first body, the first body is provided with a clamping groove, and the side wall of the clamping groove is provided with at least one bead clamping groove; and the clamping piece comprises a second body, a second magnet arranged on the second body and capable of being magnetically attracted with the first magnet, a clamping jaw arranged on the second body and configured to clamp the mobile equipment, and at least one bead screw, wherein the second body is provided with a protruding part capable of being loaded into the clamping groove, the at least one bead screw is arranged on the protruding part, and each bead of the bead screw can be clamped into one bead clamping groove.

In some embodiments, the at least one bead clamping slot comprises at least one first bead clamping slot and at least one second bead clamping slot; the at least one wave bead screw can be correspondingly clamped with the at least one first wave bead clamping groove one by one, and can be correspondingly clamped with the at least one second wave bead clamping groove one by one after the clamping piece rotates clockwise or anticlockwise for 90 degrees relative to the supporting piece.

In some embodiments, the at least one wave ball screw includes at least two wave ball screws that do not have identical directions of rotation on the projection.

In some embodiments, the at least one bead clamping slot comprises two first bead clamping slots and two second bead clamping slots; the at least one wave ball screw comprises two wave ball screws which are screwed into the protruding part in opposite directions, and the two wave ball screws can be correspondingly clamped with the two first wave ball clamping grooves one by one and can be correspondingly clamped with the two second wave ball clamping grooves one by one after the clamping piece rotates clockwise or anticlockwise for 90 degrees relative to the supporting piece.

In some embodiments, the protrusion is a square protrusion, the axes of the two wave bead screws are arranged in parallel, and the wave beads of the two wave bead screws are exposed to two opposite ends of the square protrusion in a one-to-one correspondence manner; the clamping groove is a square clamping groove, the two first bead clamping grooves are correspondingly arranged on two opposite side walls of the square clamping groove, and the two second bead clamping grooves are correspondingly arranged on the other two opposite side walls of the square clamping groove.

In some embodiments, the first body is a first shell, the clamping groove protrudes out of the inner wall of the first shell, and the first magnet is arranged in the first shell and annularly surrounds the clamping groove.

In some embodiments, the surface of the support facing the clamp has a positioning groove in the shape of a cross; the second body has and is criss-cross location arch, the location arch can be followed first direction card and gone into positioning groove and follow second direction card go into positioning groove, the bulge is located the bellied center in location.

In some embodiments, the second body is a second shell, and the second magnet is disposed in the second shell and located in a recess formed by the positioning protrusion in the inner wall of the second shell.

In some embodiments, the positioning convex surface is provided with a wave ball screw screwing direction indicator.

According to another aspect of the present disclosure, there is provided a clamping device for clamping a mobile device, including the clamping assembly of any one of the preceding claims.

The clamping component and the clamping device in the embodiment of the disclosure realize the assembly of the clamping piece and the supporting piece through the magnetic attraction of the first magnet and the second magnet and the clamping of the wave bead screw and the wave bead clamping groove, and have simple and reliable structure and higher convenience in operation.

It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present disclosure, nor do they limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description.

Drawings

Further details, features and advantages of the disclosure are disclosed in the following description of exemplary embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic view of a clamping assembly clamping a mobile device according to some embodiments of the present disclosure;

FIG. 2 is a schematic view of a clamping assembly according to some embodiments of the present disclosure;

FIG. 3 is an exploded view of a clamping assembly according to some embodiments of the present disclosure;

FIG. 4 is a front view of the internal structure of the first body and cross-sectional views A-A and B-B thereof according to some embodiments of the present disclosure;

FIG. 5 is a rear view of a clamping assembly according to some embodiments of the present disclosure and a cross-sectional view thereof in the direction of C-C;

FIG. 6 is a schematic view of a clamping assembly according to some embodiments of the present disclosure after partial assembly is completed; and

fig. 7 is a schematic view of a clamping assembly after partial assembly is completed according to some embodiments of the present disclosure.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art can appreciate, the described embodiments can be modified in various different ways, without departing from the spirit or scope of the present disclosure. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

The mobile phone clamp comprises a body and a clamping part which is magnetically connected with the body and can rotate relative to the body, wherein the clamping part is used for clamping a mobile phone. The mobile phone can be fixed on the mobile phone clamp through the magnetic attraction connection between the clamping part and the body; the clamping direction of the mobile phone on the mobile phone clamp can be adjusted by rotating the clamping part relative to the body by a certain angle. However, when the mobile phone clip is used, there is a risk that the clip portion comes off together with the mobile phone, and the clip direction of the mobile phone on the mobile phone clip cannot be stably maintained at an ideal clip angle.

Another mobile phone clip known by the inventor of the present disclosure includes a body and a clamping portion detachably and fixedly connected to the body through a screw, and capable of adjusting a fixed angle relative to the body, wherein the clamping portion is used for clamping a mobile phone. The mobile phone can be fixed on the mobile phone clip through the fixed connection between the clamping part and the body; the clamping direction of the mobile phone on the mobile phone clamp can be adjusted by adjusting the fixed angle of the clamping part relative to the body. Although the clamping part and the body of the mobile phone clamp can be reliably fixed through the screw, when the clamping direction of the mobile phone on the mobile phone clamp needs to be adjusted, the screw needs to be detached, and the operation is very inconvenient.

Based on this, the embodiment of the disclosure provides a clamping assembly and a clamping device for clamping a mobile device, which includes the clamping assembly, so as to improve the stability of clamping the mobile device by the clamping device and the convenience of operation. The specific type of the clamping device is not limited, and the clamping device may be, for example, a holder stabilizer, a selfie stick, a mobile device desktop stand, or a mobile device bedside stand. The specific product type of the mobile device is not limited, and may be, for example, a mobile phone, a tablet computer, or a portable shooting device.

As shown in fig. 1 to 5, wherein fig. 1 is a schematic view of a clamping assembly clamping a mobile device according to some embodiments of the present disclosure, fig. 2 is a schematic view of a clamping assembly according to some embodiments of the present disclosure, fig. 3 is an exploded view of a clamping assembly according to some embodiments of the present disclosure, fig. 4 is a front view of an internal structure of a first body according to some embodiments of the present disclosure and sectional views a-a and B-B thereof, and fig. 5 is a rear view of a clamping assembly according to some embodiments of the present disclosure and a sectional view C-C thereof.

Some embodiments of the present disclosure provide a clamping assembly 100, which is a part of the above-mentioned clamping device, including a support member 110 and a clamping member 160. The support 110 is used to assemble with other structures of the clamping device. The support member 110 includes a first body 1100 and a first magnet 112 disposed on the first body 1100, wherein the first body 1100 has a clamping groove 111, and a sidewall of the clamping groove 111 has at least one bead clamping groove 113 (e.g., four bead clamping grooves 113 shown in the figure). The clamping member 160 includes a second body 1600, a second magnet 162 provided on the second body 1600 and magnetically attracted to the first magnet 112, a clamping jaw 164 provided on the second body 1600 and configured to clamp the mobile device 500, and at least one bead screw 163 (e.g., two bead screws 163 shown in the figure), wherein the second body 1600 has a protrusion 161 capable of being fitted into the clamping groove 111, the at least one bead screw 163 is provided on the protrusion 161, and the bead 1631 of each bead screw 163 is capable of being clamped into one bead clamping groove 113.

The clamping member 160 and the supporting member 110 are assembled by the magnetic attraction of the first magnet 112 and the second magnet 162 and the clamping of the wave bead screw 163 and the wave bead clamping groove 113, the structure is simple and reliable, and the operation convenience is high.

Referring to FIG. 5, the wave ball screw 163 generally includes a hollow cylinder 1632 having external threads, and a spring 1633 and a wave ball 1631 disposed within the hollow cylinder 1632. When pressed, the wave beads 1631 compress the spring 1633 and retract into the hollow cylinder 1632, and when the pressing is released, the wave beads 1631 extend out of the hollow cylinder 1632 by the spring 1633. The engagement of the bead screw 163 with the bead engaging slot 113 prevents the rotation of the clamping member 160 relative to the support member 110, and prevents the clamping member 160 from being accidentally disengaged from the support member 110 (i.e., disengaged from the support member 110 without manual manipulation). Compared with the aforementioned first related art, the mobile device can be stably held without substantially rotating. Compared with the second related technology, the screw does not need to be disassembled, and the convenience of operation is greatly improved. In order to make the beads 1631 smoothly slide into the bead slots 113 and avoid accidental dropping out of the bead slots 113, the bead slots 113 may be designed to have a guiding arc surface with a certain shape.

Referring to fig. 1 and 5, when it is desired to fix the mobile device 500 to the clamping device, first, both clamping ends of the clamping jaw 164 are pulled, and the mobile device 500 is snapped into the clamping jaw 164; then, the protrusion 161 of the clamping member 160 is aligned with the clamping groove 111, and at this time, the support member 110 and the clamping member 160 can be attracted together by the first magnet 112 and the second magnet 162, and the beads 1631 of the respective bead screws 163 are also respectively clamped into the bead clamping grooves 113 by the attraction force. Of course, the clamping member 160 may be entirely pushed toward the support member 110, the auxiliary clamping member 160 may be attracted to the support member 110, and the bead screw 163 may be engaged with the bead engaging groove 113. Upon completion of this process, the mobile device 500 is secured to the holder.

When the mobile device 500 needs to be removed from the clamping device, the clamping member 160 can be pulled out from the supporting member 110 by overcoming the attraction force between the first magnet 112 and the second magnet 162 and the elastic force of the spring 1633 of the ball screw 163, without using other auxiliary tools, and the operation is very simple. The clamping member 160 and the supporting member 110 can be repeatedly disassembled and assembled without affecting the reliability of the structure, and the abrasion is small, so that the service life of the clamping assembly 100 is long.

In the embodiment of the present disclosure, the number of the wave bead clamping grooves 113 and the wave bead screws 163 is not specifically limited, and the number of the wave bead clamping grooves 113 and the number of the wave bead screws may be the same or different. For example, the aforementioned at least one wave ball screw 163 may include at least two wave ball screws 163 (e.g., two wave ball screws 163 shown in the figure) whose directions of screwing on the convex portion 161 are not identical. The greater the number of the wave ball screws 163, the more firmly the holder 160 is fixed to the support 110, and the greater the operating force for separating the holder 160 from the support 110. The number of the bead screws 163 may be appropriately selected according to the installation requirements of the mobile device and designed accordingly. In addition, the number of the bead screws 163 may be only one.

In the embodiment of the present disclosure, referring to fig. 2 and 4, the at least one ball clamping groove 113 may include at least one first ball clamping groove 113a (e.g., two first ball clamping grooves 113a shown in the figure) and at least one second ball clamping groove 113b (e.g., two second ball clamping grooves 113b shown in the figure), and the at least one ball screw 163 (e.g., two ball screws 163 shown in the figure) may be engaged with the at least one first ball clamping groove 113a in a one-to-one correspondence manner, and engaged with the at least one second ball clamping groove 113b in a one-to-one correspondence manner after the clamping member 160 rotates 90 ° (e.g., rotates 90 ° clockwise or rotates 90 ° counterclockwise) relative to the supporting member 110. The number of the wave-ball catching grooves 113 of this embodiment is twice as many as the number of the wave-ball screws 163.

The embodiment can realize the adjustment of the clamping direction of the mobile equipment. For example, taking a mobile device as a mobile phone as an example, when the mobile phone needs to be clamped laterally, the at least one ball screw 163 is clamped into the at least one first ball clamping groove 113a in a one-to-one correspondence manner while the supporting member 110 and the clamping member 160 are adsorbed; when the mobile phone needs to be clamped longitudinally, the clamping member 160 is taken down and rotated 90 ° clockwise or counterclockwise, and then the at least one ball screw 163 is clamped into the at least one second ball clamping groove 113b in a one-to-one correspondence manner while the supporting member 110 and the clamping member 160 are adsorbed. By adopting the design of the embodiment, the clamping direction of the mobile phone can be flexibly adjusted, and the operation is simple and convenient.

As shown in fig. 2 and 4, in this embodiment, the at least one bead clamping groove 113 includes two first bead clamping grooves 113a and two second bead clamping grooves 113 b; the at least one ball screw 163 includes two ball screws 163 which are screwed into the protrusion 161 in opposite directions, and the two ball screws 163 can be correspondingly engaged with the two first ball slots 113a one by one, and correspondingly engaged with the two second ball slots 113b after being rotated by 90 ° (for example, rotated by 90 ° clockwise or rotated by 90 ° counterclockwise) with respect to the supporting member 110 by the clamping member 160. Simple structure, reliability and high stability.

In some embodiments of the present disclosure, the clamping assembly may also be designed with only one clamping direction, so that the number of the wave bead clamping grooves and the wave bead screws may be designed to be the same, for example, two.

The projection 161 is matched with the shape of the catching groove 111. The specific shape of the projection 161 is not limited, and may be, for example, substantially circular, square, polygonal, or the like. When the clamping assembly 100 has two orthogonal clamping directions, the shape of the protrusion 161 and the clamping groove 111 should be satisfied, and the protrusion 161 can be inserted into the clamping groove 111 after being rotated by 90 ° with respect to the supporting member 110 (for example, rotated by 90 ° clockwise or rotated by 90 ° counterclockwise) along with the clamping member 160. The substantially square clamping groove 111 not only facilitates the assembly alignment, but also restricts the rotation of the protrusion 161 therein, so that the stability of the clamping device for clamping the mobile device and the convenience of operation can be further improved. In the present disclosure, a structure is generally in a certain shape, and it is understood that the structure as a whole takes on the shape after omitting some details and/or errors, and for example, may include the shape or a shape closer to the shape, which should not be construed narrowly.

As shown in fig. 2 and 4, in this embodiment, the protrusion 161 is a square protrusion, the axes of the two wave-bead screws 163 are arranged in parallel, and the wave beads 1631 of the two wave-bead screws 163 are exposed to two opposite ends of the square protrusion in a one-to-one correspondence manner. Correspondingly, the clamping groove 111 is a square clamping groove 111, the two first bead clamping grooves 113a are correspondingly arranged on two opposite side walls of the square clamping groove one by one, and the two second bead clamping grooves 113b are correspondingly arranged on the other two opposite side walls of the square clamping groove one by one. To make the structure of the projection 161 more compact, two bead screws 163 may be arranged in anti-parallel. In other embodiments of the present disclosure, two wave ball screws may be coaxially arranged in opposite directions, which is not specifically limited by the present disclosure.

As shown in fig. 3, in some embodiments of the present disclosure, the first body 1100 is a first housing (e.g., including a support main 1101 and a support cover 1102), the clamping groove 111 protrudes from an inner wall of the first housing, and the first magnet 112 is disposed in the first housing and annularly surrounds the clamping groove 111. The second body 1600 is a second housing (for example, including a square-disc main body 1601 and a square-disc cover 1602), and the second magnet 162 is disposed in the second housing and located in a recess formed by a positioning protrusion 165 in the second housing inner wall. This design can make the overall structure of centre gripping subassembly 100 more compact, and first casing and second casing are for example plastics casing or sheet metal casing etc.. The first and second magnets are not limited to the above-described shapes and positions, for example, in some other embodiments of the present disclosure, the first magnet may also include a plurality of first magnet patches attached to the first body surface, and the second magnet may include a plurality of second magnet patches attached to the second body surface, each of the second magnet patches being configured to be attracted in correspondence with one of the first magnet patches.

As shown in fig. 2, in some embodiments of the present disclosure, a surface of the supporting member 110 facing the clamping member 160 has a positioning groove 115 with a cross shape, the second body 1600 has a positioning protrusion 165 with a cross shape, the positioning protrusion 165 can be snapped into the positioning groove 115 in the first direction and the positioning groove 115 in the second direction, and the protruding portion 161 is disposed at a center of the positioning protrusion 165. The first direction and the second direction may be orthogonal, for example, the first direction is a transverse direction, and the second direction is a longitudinal direction. The "cross shape" includes a cross shape and a shape close to the cross shape, and should not be construed narrowly.

In this embodiment, the positioning protrusions 165 and the positioning grooves 115 are matched to facilitate the positioning of the clamping member 160 and the supporting member 110 in two clamping directions, respectively, and further to limit the rotation of the clamping member 160 relative to the supporting member 110 to a certain extent, so that the stability and the convenience of the operation of clamping the mobile device by the clamping device can be further improved. In this embodiment, to facilitate assembly of the wave ball screw 163, the surface of the positioning projection 165 may be provided with a wave ball screw screwing direction indicator 166, such as the indicated arrow pattern shown in the figure.

In some embodiments, the second housing (i.e., the second body 1600) is substantially square, with two opposing ends provided with respective through holes, the clamping jaw 164 passing through the two through holes, and with the two clamping ends located outside the second housing. The specific structure of the clamping jaw 164 is not limited as long as the clamping jaw can stably clamp the mobile device, for example, the clamping jaw 164 may be an elastic clamping jaw, and one or both of the clamping ends may elastically extend and contract relative to the second housing.

In some embodiments of the present disclosure, to facilitate the processing and assembling of parts of the supporting member 110 and the clamping member 160, as shown in fig. 3, 6 and 7, the first housing (i.e., the first body 1100) of the supporting member 110 includes a supporting main body 1101 and a supporting cover 1102 fixedly connected by a set of screws, and the structure of the clamping groove 111 is disposed on the supporting cover 1102. The second housing (i.e., the second body 1600) of the clamping member 160 includes a square disk main body 1601 and a circular square disk cover 1602 which are fixedly connected by a set of screws, the clamping jaw 164, the second magnet 162 and the like are disposed between the square disk main body 1601 and the square disk cover 1602, and the protrusion 161 and the bead screw 163 and the like are disposed on the square disk main body 1601.

As shown in fig. 3, 6 and 7, in one embodiment, the assembly process of the clamping assembly 100 is: first, a first magnet 112 having a ring shape is fixed to the inside of the support cover 1102 on the circumferential side of the structure of the chucking groove 111 by a back adhesive, and a second magnet 162 is fixed to the inside of the square disc main body 1601 in a recess by a back adhesive; then, the support main 1101 and the support cover 1102 are fixed together by a set of screws; then, the claws are fixed to the inside of the square disc main body 1601 on the side of the second magnet 162 away from the convex portion 161, and the square disc main body 1601 and the square disc cover 1602 are fixed together by a set of screws; then, the two bead screws 163 are screwed into the projections 161 of the square disk main body 1601 in the direction indicated by the indication arrow, so that the assembly of the clip assembly 100 is completed. It is understood that the sequence of some steps in the above assembling process can be adjusted.

Referring to fig. 2 and 5, when the clip 160 is assembled with the support 110, the protrusion 161 of the clip 160 is roughly positioned with the clamping groove 111, and the beads 1631 are not compressed, so that the beads protrude out of the hollow cylinder 1632; the clamping member 160 is pushed toward the supporting member 110, and the beads 1631 are pressed by the side wall of the clamping groove 111 and are retracted into the hollow cylinder 1632; when the wave bead screw 163 moves to the position of the wave bead clamping groove 113, the pressing of the wave bead 1631 is released, and the elastic force of the spring 1633 ejects the wave bead 1631 out, so that the wave bead extends out of the hollow cylinder 1632 again, and is clamped into the wave bead clamping groove 113. In the above process, the clamping member 160 and the supporting member 110 always have a tendency of being attached by adsorption force between the first magnet 112 and the second magnet 162, and therefore, after the beads 1631 are clamped into the bead clamping grooves 113, the clamping member 160 and the supporting member 110 can be reliably connected by adsorption.

When it is necessary to separate the clamping member 160 from the supporting member 110, the clamping member 160 is pulled out from the supporting member 110 against the attraction force between the first and second magnets 112 and 162 and the spring force of the wave ball screw 163.

The first and second magnets 112 and 162 may provide a stable attraction force for the clamping member 160 and the supporting member 110. The clamping of the wave ball screw 163 with the wave ball clamping groove 113 can prevent the rotation of the clamping member 160 relative to the support member 110, and can prevent the clamping member 160 from being accidentally detached from the support member 110. Through the above operation steps, it can be seen that the assembling and disassembling of the clamping member 160 and the supporting member 110 are very convenient, and the structure is also durable.

The embodiment of the present disclosure further provides a clamping device for clamping a mobile device, including the clamping assembly 100 of any one of the foregoing embodiments. The specific type of the clamping device is not limited, and may be, for example, a holder stabilizer, a selfie stick, a mobile device desktop stand, or a mobile device bedside stand. The clamping device can realize stable clamping of the mobile equipment and is convenient to operate.

It will be understood that in this specification, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like, indicate an orientation or positional relationship or dimension based on that shown in the drawings, which terms are used for convenience of description only and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered limiting to the scope of the disclosure.

Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, "a plurality" means two or more unless specifically limited otherwise.

In the present disclosure, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

This description provides many different embodiments or examples that can be used to implement the present disclosure. It should be understood that these various embodiments or examples are purely exemplary and are not intended to limit the scope of the disclosure in any way. Those skilled in the art can conceive of various changes or substitutions based on the disclosure of the specification of the present disclosure, which are intended to be included within the scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope defined by the appended claims.

Claims (10)

1. A clamping assembly, comprising:

the supporting piece comprises a first body and a first magnet arranged on the first body, the first body is provided with a clamping groove, and the side wall of the clamping groove is provided with at least one bead clamping groove; and

the clamping piece comprises a second body, a second magnet arranged on the second body and capable of being magnetically attracted with the first magnet, a clamping jaw arranged on the second body and configured to clamp the mobile equipment, and at least one bead screw, wherein the second body is provided with a protruding portion capable of being loaded into the clamping groove, the at least one bead screw is arranged on the protruding portion, and each bead of the bead screw can be clamped into one bead clamping groove.

2. Clamping assembly according to claim 1,

the at least one wave bead clamping groove comprises at least one first wave bead clamping groove and at least one second wave bead clamping groove;

the at least one wave bead screw can be correspondingly clamped with the at least one first wave bead clamping groove one by one, and can be correspondingly clamped with the at least one second wave bead clamping groove one by one after the clamping piece rotates clockwise or anticlockwise for 90 degrees relative to the supporting piece.

3. Clamping assembly according to claim 1,

the at least one wave ball screw includes at least two wave ball screws whose directions of advance on the projection are not exactly the same.

4. Clamping assembly according to claim 1,

the at least one wave bead clamping groove comprises two first wave bead clamping grooves and two second wave bead clamping grooves;

the at least one wave ball screw comprises two wave ball screws which are screwed into the protruding part in opposite directions, and the two wave ball screws can be correspondingly clamped with the two first wave ball clamping grooves one by one and can be correspondingly clamped with the two second wave ball clamping grooves one by one after the clamping piece rotates clockwise or anticlockwise for 90 degrees relative to the supporting piece.

5. Clamping assembly according to claim 4,

the convex part is a square convex part, the axes of the two wave bead screws are arranged in parallel, and the wave beads of the two wave bead screws are exposed at two opposite ends of the square convex part in a one-to-one correspondence manner;

the clamping groove is a square clamping groove, the two first bead clamping grooves are correspondingly arranged on two opposite side walls of the square clamping groove, and the two second bead clamping grooves are correspondingly arranged on the other two opposite side walls of the square clamping groove.

6. Clamping assembly according to claim 1,

the first body is a first shell, the clamping groove protrudes out of the inner wall of the first shell, and the first magnet is arranged in the first shell and annularly surrounds the clamping groove.

7. Clamping assembly according to any one of claims 1 to 6,

the surface of the supporting piece facing the clamping piece is provided with a positioning groove in a cross shape;

the second body has and is criss-cross location arch, the location arch can be followed first direction card and gone into positioning groove and follow second direction card go into positioning groove, the bulge is located the bellied center in location.

8. The clamping assembly of claim 7,

the second body is a second shell, and the second magnet is arranged in the second shell and positioned in a recess formed by the positioning bulge in the second shell.

9. The clamping assembly of claim 7,

the surface of the positioning bulge is provided with a bead screw screwing direction indication mark.

10. Clamping device for clamping a mobile device, characterized in that it comprises a clamping assembly according to any one of claims 1 to 9.

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