Screw-on device, gimbal camera and drone

Abstract

The present invention discloses a screw-fastening device, a gimbal camera and a drone. The screw-fastening device is applied to a gimbal camera, and the gimbal camera includes a camera body and a gimbal bracket. The screw-fastening device is fixedly connected to the gimbal bracket, and the screw-fastening device includes a fixed bracket, a knob member and an elastic member. The fixed bracket is clamped on the camera body, and the knob member is spirally connected to the camera body to lock the camera body to the gimbal bracket through the screw-fastening device. The knob member is disengaged from the camera body, and the elastic member elastically pushes the knob member to move, so that the portion of the knob member protruding from the fixed bracket is stored in the fixed bracket. The knob member automatically retracts to the inside of the fixed bracket, and after the camera body is clamped on the gimbal bracket, it overcomes the elastic force of the elastic member and is locked to the camera body, so that the gimbal camera is easy to install.

Description

Technical Field

[0001] The present invention belongs to the technical field of unmanned aerial vehicles, and relates to a screw-fastening device, a pan-tilt camera and a unmanned aerial vehicle. Background Art

[0002] In the related art, before a handheld gimbal or drone is used for shooting, the camera body needs to be fixed to the gimbal bracket. The camera body is locked to the gimbal bracket by a locking member. For example, a locking member such as a handle bolt is used to lock the camera body to the gimbal bracket.

[0003] Since the locking piece is an independent part, it can be stored independently after being removed from the gimbal bracket. During the repeated disassembly and installation of the camera body, the locking piece is easily lost. At the same time, during the installation of the gimbal camera, the operator needs to repeatedly confirm the connection between the locking piece and the gimbal camera, which leads to poor user experience. Summary of the invention

[0004] In view of this, the present disclosure provides a screw-fastening device, a gimbal camera and a drone.

[0005] Specifically, the present disclosure is achieved through the following technical solutions:

[0006] According to the first aspect of the present disclosure, in one embodiment, a screw-fastening device is provided, which is applied to a gimbal camera, wherein the gimbal camera comprises a camera body and a gimbal bracket matching the camera body, wherein the screw-fastening device is fixedly connected to the gimbal bracket, and wherein the screw-fastening device comprises a fixed bracket, a knob member slidably disposed on the fixed bracket, and an elastic member sleeved on the knob member and respectively abutting against the fixed bracket and the knob member;

[0007] The fixed bracket is clamped on the camera body, and the knob part is screwed to the camera body to lock the camera body to the gimbal bracket through the screw-locking device; the knob part is disengaged from the camera body, and the elastic part elastically pushes the knob part to move, so that the part of the knob part protruding from the fixed bracket is received in the fixed bracket.

[0008] In one embodiment, the fixing bracket is provided with a penetrating sliding hole and a step hole connected to the sliding hole, the knob member slides along the sliding hole, and the elastic member elastically pushes the knob member protruding from the fixing bracket to be received in the step hole.

[0009] In one embodiment, the fixed bracket includes a main body and a pressure block. The main body is provided with a mounting hole. The pressure block is closed to the mounting hole and fixedly connected to the main body. The sliding hole and the step hole are formed between the main body and the pressure block.

[0010] In one embodiment, the mounting hole includes a large hole portion and a small hole portion connected to the large hole portion, the inner diameter of the large hole portion is larger than the rotation diameter of the portion of the knob member protruding from the fixed bracket, wherein the small hole portion is a part of the sliding hole and the step hole.

[0011] In one embodiment, the main body includes a main body portion and a step portion protruding from the main body portion, the mounting hole extends from the main body portion to the step portion, and the pressure block is assembled to the main body portion and closed with the step portion to form the sliding hole and the step hole.

[0012] In one embodiment, the main body further includes a limiting portion protruding from the main body in a tubular shape, and the knob member is sleeved outside the limiting portion and rotates around the limiting portion.

[0013] In one embodiment, the knob member is screwed against the main body.

[0014] In one embodiment, the main body further includes clamping portions protruding from both ends of the main body, and the clamping portions are used to clamp on both sides of the camera body.

[0015] In one embodiment, the pressing block comprises a mounting portion and a boss portion protruding from the mounting portion, the boss portion is provided with a notch penetrating the pressing block, the mounting portion is fixedly connected to a main body, the boss portion and the main body are closed together so that the notch and the main body form the sliding hole and the step hole.

[0016] In one embodiment, the fixing bracket further comprises a connecting plate fixedly connected to the main body, the connecting plate is provided with an extended hole extending therethrough, and the extended hole is coaxial with the step hole.

[0017] In one embodiment, the screw-fastening device includes a deformable member fixed to the fixing bracket, and the screw-fastening device squeezes the deformable member and is assembled to the camera body, so that a pre-tightening force exists between the screw-fastening device and the camera body.

[0018] In one embodiment, the deformable member includes a main body portion and an inserting portion, the inserting portion is plug-connected to the fixing bracket, and the main body portion is attached to the fixing bracket.

[0019] In one embodiment, the knob member includes a knob body, a connecting rod portion protruding from the knob body, and a spiral portion provided on the connecting rod portion, the connecting rod portion is slidably provided on the fixed bracket, and the knob body rotates to drive the spiral portion to be threadedly connected to the camera body.

[0020] In one embodiment, a rotation diameter of the spiral portion is greater than an outer diameter of the connecting rod portion.

[0021] In one embodiment, the knob body is barrel-shaped and sleeved outside the fixing bracket.

[0022] In one embodiment, the outer surface of the knob body is provided with anti-slip grooves.

[0023] In one embodiment, when the spiral portion protrudes out of the surface of the fixing bracket to a maximum value, the knob body abuts against the fixing bracket.

[0024] According to the second aspect of the present disclosure, in one embodiment, a gimbal camera is provided, comprising a camera body, a gimbal bracket and a rotating device as described above, wherein the rotating device is fixedly connected to the gimbal bracket, the camera body is plugged into the gimbal bracket, and the rotating device locks the camera body to the gimbal bracket.

[0025] In one embodiment, the screw-fastening device is fixedly connected to the gimbal bracket and forms a concave storage space with the gimbal bracket. The camera body is at least partially stored in the storage space and is clamped by the gimbal bracket and the screw-fastening device.

[0026] In one embodiment, the pan / tilt bracket includes a base portion, a clamping portion bent at one end of the base portion, and a fixing portion arranged at the other end of the base portion, and the screw-fastening device is fixedly connected to the fixing portion and arranged opposite to the clamping portion.

[0027] According to a third aspect of the present disclosure, in one embodiment, a drone is provided, comprising a fuselage and the gimbal camera as described above mounted on the fuselage.

[0028] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0029] A screw-fastening device is fixedly connected to the pan-tilt bracket, and the camera body of the pan-tilt camera is clamped on the pan-tilt bracket through the screw-fastening device, which is convenient for fixing. The knob part automatically retracts into the inside of the fixing bracket, and after the camera body is clamped to the pan-tilt bracket, it overcomes the elastic force of the elastic part and is locked to the camera body, which makes the pan-tilt camera easy to install. The positions of the pan-tilt bracket and the screw-fastening device are fixed, and the camera body is clamped to the preset position of the pan-tilt bracket, so that the knob part can directly lock the camera body, and the alignment effect is good.

[0030] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The figure is a schematic diagram of the combined structure of a pan / tilt bracket and a screw-fastening device according to an exemplary embodiment.

[0032] Figure 2It is a schematic diagram of the exploded structure of a pan / tilt bracket and a screw-fastening device according to an exemplary embodiment.

[0033] Figure 3 A schematic cross-sectional structure diagram of a screw-fastening device is shown according to an exemplary embodiment.

[0034] Figure 4 A schematic diagram of an explosion structure of a screw-fastening device according to an exemplary embodiment is shown.

[0035] Figure 5 A schematic structural diagram of a main body is shown according to an exemplary embodiment.

[0036] Figure 6 A schematic structural diagram of a pressing block is shown according to an exemplary embodiment.

[0037] Figure 7 A schematic structural diagram of a pressing block is shown according to an exemplary embodiment.

[0038] Among them, the pan-tilt bracket 100; the interface 101; the base part 102; the clamping part 103; the fixing part 104; the screw-fastening device 200; the sliding hole 201; the step hole 202; the camera body 300; the fixing bracket 10; the main body 11; the main body 111; the step part 112; the clamping part 113; the limiting part 114; the mounting hole 115; the large hole part 1151; the small hole part 1152; the pressure block part 12; the mounting part 121; the boss part 122; the notch 123; the knob part 20; the knob body 21; the spiral part 22; the connecting rod part 23; the elastic part 30; the connecting plate 40; the extension hole 41; the tubular boss 42; the positioning groove 43; the deformation part 50; the main body 51; the plug-in part 52. DETAILED DESCRIPTION

[0039] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0040] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms of "a", "said" and "the" used in this disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0041] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0042] like Figure 1 and Figure 2 As shown, the drone includes a fuselage and a gimbal camera mounted on the fuselage. The fuselage carries the gimbal camera to fly for shooting operations. The gimbal camera can also be applied to equipment such as a handheld gimbal. The gimbal camera includes a camera body 300, a gimbal bracket 100 and a screw-fastening device 200. The camera body 300 is used for shooting operations. The gimbal bracket 100 is used to install the camera body 300 and adjust the shooting angle of the camera body 300, such as rotating a corresponding angle. The screw-fastening device 200 is fixedly connected to the gimbal bracket 100, and the camera body 300 is plugged and connected to the gimbal bracket 100. The screw-fastening device 200 locks the camera body 300 to the gimbal bracket 100.

[0043] like Figure 2 and Figure 3 As shown, in one embodiment, the screw-fastening device 200 includes a fixed bracket 10, a knob member 20 slidably mounted on the fixed bracket 10, and an elastic member 30 sleeved on the knob member 20 and respectively abutting against the fixed bracket 10 and the knob member 20. There is a preset elastic force between the elastic member 30 and the knob member 20, and when the knob member 20 is not connected to the camera body 300, the knob member 20 abuts against the fixed bracket 10 under the action of the elastic force. In one embodiment, a groove structure for accommodating part of the knob member 20 is provided on the fixed bracket 10, and the depth of the groove structure is sufficient to accommodate the part of the knob member 20 protruding from the fixed bracket 10, so that the camera body 300 can slide along the surface of the fixed bracket 10.

[0044] Assembly process of the camera body 300: The camera body 300 slides along the pan / tilt bracket 100 to a preset position, wherein the fixing bracket 10 is clamped on the camera body 300. The knob 20 is screwed to the camera body 300 to lock the camera body 300 to the pan / tilt bracket 100 through the screwing device 200.

[0045] The disassembly process of the camera body 300: the knob member 20 is rotated in the opposite direction to disengage the knob member 20 from the camera body 300, the elastic member 30 elastically pushes the knob member 20 to move, so that the portion of the knob member 20 protruding from the fixed bracket 10 is stored in the fixed bracket 10, and the camera body 300 slides along the gimbal bracket 100 and is pulled out.

[0046] A screw-fastening device 200 is fixedly connected to the pan-tilt bracket 100, and the camera body 300 of the pan-tilt camera is clamped on the pan-tilt bracket 100 by the screw-fastening device 200, which is convenient for fixing. The knob member 20 automatically retracts to the inside of the fixing bracket 10, and after the camera body 300 is clamped to the pan-tilt bracket 100, it overcomes the elastic force of the elastic member 30 and is locked to the camera body 300, which makes the installation of the pan-tilt camera convenient. The positions of the pan-tilt bracket 100 and the screw-fastening device 200 are fixed, and the camera body 300 is clamped to the preset position of the pan-tilt bracket 100, so that the knob member 20 can directly lock the camera body 300, and the alignment effect is good.

[0047] The camera body 300 is clamped and mounted on the pan-tilt bracket 100. In one embodiment, the screw-fastening device 200 is fixedly connected to the pan-tilt bracket 100 and forms a concave storage space with the pan-tilt bracket 100. The camera body 300 is at least partially stored in the storage space and clamped by the pan-tilt bracket 100 and the screw-fastening device 200.

[0048] The screw-fastening device 200 is fixedly connected to the pan-tilt bracket 100, and a U-shaped, Y-shaped or other concave structure is formed between the screw-fastening device 200 and the pan-tilt bracket 100, and a storage space for accommodating the camera body 300 is formed in the concave structure. The two ends of the camera body 300 for fixing are moved along the screw-fastening device 200 and the pan-tilt bracket 100 and are clamped. The knob 20 locks the camera body 300 to prevent it from escaping from the storage space, and the installation is convenient. Among them, the combination of the screw-fastening device 200 and the pan-tilt bracket 100 can include two types:

[0049] 1. The pan-tilt bracket 100 is fixedly connected to a screw-fastening device 200 , and a clamping structure opposite to the screw-fastening device 200 is provided on the other side of the pan-tilt bracket 100 .

[0050] 2. The pan / tilt bracket 100 is fixedly connected with two screw-fastening devices 200 , and the two screw-fastening devices 200 are arranged opposite to each other.

[0051] By adjusting the matching position and matching mode of the pan-tilt bracket 100 and the screw-fastening device 200, different styles of camera bodies 300 can be conveniently fixed, and the assembly is flexible. By adjusting the installation position of the screw-fastening device 200 on the pan-tilt bracket 100, different models and different types of camera bodies 300 can be installed, and the adaptability is strong.

[0052] In one embodiment, the pan / tilt bracket 100 includes a base portion 102 , a clamping portion 103 bent at one end of the base portion 102 , and a fixing portion 104 disposed at the other end of the base portion 102 . The screw-fastening device 200 is fixedly connected to the fixing portion 104 and disposed opposite to the clamping portion 103 .

[0053] The base 102, the clamping part 103 and the screw-fastening device 200 form a "U"-shaped structure, and the clamping part 103 is provided with a slide groove or a long hole, so that one end of the camera body 300 can be connected to the clamping part 103 by plug connection, snap connection, etc. The screw-fastening device 200 is fixedly connected to the fixing part 104, and is locked to the other end of the camera body 300 by the knob 20. Both sides of the camera body 300 are respectively clamped by the clamping part 103 and the screw-fastening device 200.

[0054] In one embodiment, the base portion 102 may be provided with an interface 101 to which the camera body 300 is plugged, such as a charging interface, a data transmission structure, etc., and the protruding direction of the interface 101 is parallel to the moving direction of the camera body 300 along the gimbal bracket 100. The camera body 300 moves along the clamping portion 103 or the screw-fastening device 200 and is plugged and connected with the interface 101, and the knob 20 is rotated to lock the camera body 300 on the gimbal bracket 100.

[0055] The freedom of movement of the camera body 300 is limited by the clamping portion 103 and the screw-fastening device 200. In one embodiment, a "U"-shaped limiting structure is provided at the joint surface of the screw-fastening device 200 and the camera body 300, and the opening direction of the limiting structure is perpendicular to the opening direction of the pan / tilt bracket 100. The camera body 300 can only move linearly along the opening direction of the pan / tilt bracket 100, so as to further limit the freedom of movement of the camera body 300, and the movement trajectory of the camera body 300 is stable, and the installation consistency is good.

[0056] like Figure 3 and Figure 4 As shown, the knob member 20 is used to overcome the elastic force of the elastic member 30 and lock the camera body 300. After unlocking, it can be retracted into the fixed bracket 10 to facilitate the camera body 300 to slide along the fixed bracket 10. In one embodiment, the fixed bracket 10 is provided with a penetrating sliding hole 201 and a step hole 202 connected to the sliding hole 201. The knob member 20 slides along the sliding hole 201, and the elastic member 30 elastically pushes the knob member 20 protruding from the fixed bracket 10 to be received in the step hole 202. The diameter of the step hole 202 is larger than the diameter of the sliding hole 201, wherein the step hole 202 can be set as a regular circular hole or an irregular groove structure. There is a step surface between the step hole 202 and the sliding hole 201, and the knob member 20 can abut against the step surface.

[0057] like Figure 5As shown, the knob member 20 is an integrated structure or is composed of multiple parts. When the knob member 20 is processed by an integrated molding process, the overall force is uniform, the rotation effect is good, and it can withstand large torque. In one embodiment, the knob member 20 includes a knob body 21, a connecting rod portion 23 convexly arranged on the knob body 21, and a spiral portion 22 arranged on the connecting rod portion 23. The connecting rod portion 23 is slidably arranged on the fixed bracket 10. The knob body 21 rotates to drive the spiral portion 22 to be threadedly connected with the camera body 300. The rotation diameter of the spiral portion 22 is greater than the outer diameter of the connecting rod portion 2.

[0058] The outer diameter of the connecting rod 23 matches the inner diameter of the sliding hole 201, and the two are connected in a relative sliding manner. The knob member 20 overcomes the elastic force of the elastic member 30 so that the spiral portion 22 at least partially protrudes from the fixed bracket 10, and the spiral portion 22 is spirally connected to the camera body 300. The knob member 20 retracts into the fixed bracket 10 under the elastic force of the elastic member 30, wherein the outer diameter of the spiral portion 22 is larger than the inner diameter of the sliding hole 201, and the spiral portion 22 abuts against the step surface under the elastic force.

[0059] The connecting rod 23 protrudes from the knob body 21. In one embodiment, the knob body 21 is barrel-shaped. The connecting rod 23 is located at the axis of the knob body 21 and extends from the bottom of the knob body 21 to the opening direction. The knob body 21 is sleeved outside the fixed bracket 10, and the connecting rod 23 passes through the sliding hole 201 and extends outward. A tubular protruding stopper 114 is provided on the fixed bracket 10, and the knob body 21 of the knob member 20 is sleeved outside the stopper 114 and rotates around the stopper 114.

[0060] The limiting portion 114 is colinear with the sliding hole 201, and the knob body 21 can rotate around the limiting portion 114, wherein the gap between the inner surface of the knob body 21 and the outer surface of the limiting portion 114 is small, which has a guiding function. Further, the length of the limiting portion 114 protruding from the fixed bracket 10 can be adjusted to control the moving range of the knob member 20. In one embodiment, when the spiral portion 22 protrudes from the surface of the fixed bracket 10 to the maximum value, the knob body 21 abuts against the fixed bracket 10. That is, when the knob member 20 overcomes the elastic force and protrudes outward, the knob body 21 can abut against the end of the limiting portion 114 to limit the length of the spiral portion 22 on the knob member 20 protruding from the fixed bracket 10, and then control the connection length of the knob member 20 and the camera body 300, avoid the knob member 20 from over-tightening the camera body 300, and protect the reliability and service life of the connection of the camera body 300. The knob body 21 and the stopper 114 abut against each other, and the camera body 300 can be tightened and connected to the screw-fastening device 200, and the connection is tight. In one embodiment, the outer surface of the knob body 21 is provided with anti-skid patterns to improve the rotation effect of the knob member 20. The anti-skid patterns can be grid patterns, straight strip patterns, or other patterns that increase friction, so that the operator can apply force to the knob member 20.

[0061] The knob member 20 is provided with a spiral portion 22 and a connecting rod portion 23, the connecting rod portion 23 matches the sliding hole 201, and the spiral portion 22 can abut against the step surface, so that the spiral portion 22 passes through the sliding hole 201 and is in the step hole 202, and the integrity of the knob member 20 is maintained. In one embodiment, the fixing bracket 10 includes a main body 11 and a pressing block 12, and the main body 11 is provided with a mounting hole 115. The pressing block 12 is closed to the mounting hole 115 and fixedly connected to the main body 11, and the sliding hole 201 and the step hole 202 are formed between the main body 11 and the pressing block 12.

[0062] The step hole 202 and the sliding hole 201 are formed by closing the main body 11 and the pressing block 12, that is, notches 123 are set at the corresponding positions of the main body 11 and the pressing block 12. After the main body 11 and the pressing block 12 are closed, the two notches 123 are closed to form a complete sliding hole 201 and step hole 202. The spiral part 22 and the connecting rod part 23 of the knob part 20 first pass through the installation hole 115 and are installed to a preset position. The pressing block 12 is closed along the installation hole 115 and fixedly connected to the main body 11, so that the fixed bracket 10 forms an integral structure. The knob part 20 is slidably arranged on the fixed bracket 10, which is easy to install.

[0063] like Figure 6 As shown, in one embodiment, the mounting hole 115 includes a large hole portion 1151 and a small hole portion 1152 connected to the large hole portion 1151, wherein the inner diameter of the large hole portion 1151 is larger than the rotation diameter of the portion of the knob member 20 protruding from the fixed bracket 10, wherein the small hole portion 1152 is a portion of the sliding hole 201 and the stepped hole 202. The inner diameter of the large hole portion 1151 is larger than the outer diameter of the spiral portion 22, and the spiral portion 22 can be inserted along the large hole portion 1151 to the other side of the fixed bracket 10. The connecting rod portion 23 moves along the radial direction of the large hole portion 1151 to the small hole portion 1152, so that the spiral portion 22 is located at the notch 123 at the position of the stepped hole 202 on the small hole portion 1152, and the connecting rod portion 23 is located at the position of the sliding hole 201 on the small hole portion 1152. The pressing block 12 is installed to the main body 11 , wherein the pressing block 12 blocks the large hole 1151 and closes to the small hole 1152 , so that a complete sliding hole 201 and a step hole 202 are formed between the main body 11 and the pressing block 12 .

[0064] In one embodiment, the main body 11 includes a main body portion 111 and a step portion 112 protruding from the main body portion 111 , the mounting hole 115 extends from the main body portion 111 to the step portion 112 , the pressing block 12 is assembled to the main body portion 111 and closed with the step portion 112 to form a sliding hole 201 and a step hole 202 .

[0065] The step portion 112 protrudes from the main body 111 to achieve local thickening of the main body 111, thereby reducing the overall mass of the main body 11, which is suitable for electronic devices such as drones and handheld devices. The sliding hole 201 and the step hole 202 are provided in the step portion 112, that is, the small hole portion 1152 is provided in the step portion 112, and the large hole portion 1151 is provided in the main body 111.

[0066] like Figure 6 and Figure 7 As shown, correspondingly, the pressing block 12 includes a mounting portion 121 and a boss portion 122 protruding from the mounting portion 121, and the boss portion 122 is provided with a notch 123 penetrating the pressing block 12. The mounting portion 121 is fixedly connected to the main body 11, and the boss portion 122 is closed with the main body 11, so that the notch 123 and the main body 11 form a sliding hole 201 and a step hole 202.

[0067] The step portion 112 is closed with the boss portion 122, wherein the notch 123 of the boss portion 122 is closed with the small hole portion 1152 to form the sliding hole 201 and the step hole 202. The mounting portion 121 is partially plugged and connected to the large hole portion 1151 and fixedly connected to the main body portion 111, so as to confine the knob member 20 in the sliding hole 201 and the step hole 202.

[0068] A large hole 1151 is provided on the main body 11 for inserting the spiral part 22, and an integrally formed knob 20 can be used, which is convenient for installation. The knob 20 is integrally formed, has a good connection effect with the camera body 300, is evenly stressed, and has good structural integrity. The main body 11 is provided with a small hole 1152 to support and locate the installation position of the knob 20, and its assembly visualization is good and installation is convenient.

[0069] In one embodiment, the limiting portion 114 is tubular and protrudes from the main body 111 of the main body 11, and the mounting hole 115 is located within the range surrounded by the limiting portion 114. When the knob member 20 is mounted to the main body 11, the knob body 21 of the knob member 20 is sleeved outside the limiting portion 114 and closes the mounting hole 115. The barrel-shaped knob body 21 can cover the mounting hole 115, thereby improving the aesthetics of the screw-fastening device 200.

[0070] like Figure 5 As shown, in order to increase the moving range of the spiral portion 22 and adjust the size of the step portion 112, and to close the space between the main body 11 and the pressing block 12. In one embodiment, the fixing bracket 10 further includes a connecting plate 40 fixedly connected to the main body 11, and the connecting plate 40 is provided with an extended hole 41 therethrough, and the extended hole 41 is coaxial with the step hole 202.

[0071] The main body 11 is an annular barrel structure, the pressing block 12 is located at the bottom of the main body 11, and the connecting plate 40 is closed at the opening of the main body 11. An elongated hole 41 is provided on the main body 11 to guide and accommodate the spiral portion 22. In one embodiment, the connecting plate 40 is a flat plate, a tubular boss 42 is protruded on the connecting plate 40, and the elongated hole 41 is located at the center of the tubular boss 42. The connecting plate 40 closes the main body 11, which can improve the aesthetics of the screw-on device 200. The main body 11 is set as a hollow structure, which can reduce the overall weight of the screw-on device 200.

[0072] The screw-fastening device 200 is used to clamp the camera body 300 to define the position of the camera body 300. In one embodiment, the main body 11 further includes clamping portions 113 protruding from both ends of the main body portion 111, and the clamping portions 113 are used to clamp the two sides of the camera body 300.

[0073] A "U"-shaped structure is formed between the clamping portion 113 and the main body 111. The camera body 300 moves along the clamping portion 113 and the main body 111 and is restricted by the clamping portion 113 and the main body 111. The protruding direction of the clamping portion 113 intersects the clamping portion 103 vertically or obliquely to limit the installation angle of the camera body 300. The clamping portion 113 is located on the screw-fastening device 200, which is installed on the pan / tilt bracket 100. The position and angle of the screw-fastening device 200 are adjusted, and then the angle of the clamping portion 113 holding the camera body 300 is adjusted, which is convenient to adjust.

[0074] The knob 20 passes through the main body 111 and is locked to the camera body 300. As the locking force between the knob 20 and the camera body 300 changes, the camera body 300 and the main body 111 are tightly fitted. In one embodiment, the screw-fastening device 200 includes a deformable member 50 fixed to the fixing bracket 10. The screw-fastening device 200 squeezes the deformable member 50 and is assembled to the camera body 300, so that there is a pre-tightening force between the screw-fastening device 200 and the camera body 300.

[0075] The deformable member 50 is made of elastic material and is fixedly connected to the outer surface of the fixed bracket 10. In one embodiment, the deformable member 50 is U-shaped and attached to the surface of the connecting plate 40 and the clamping portion 113. The knob member 20 passes through the deformable member 50 and connects the camera body 300 tightly to the deformable member 50. The deformable member 50 generates elastic deformation under the squeezing force of the knob member 20 and the camera body 300, so that a pre-tightening force is formed between the screw-fastening device 200 and the camera body 300 to prevent the camera body 300 from loosening during flight or movement, and the camera body 300 is firmly installed. The deformable member 50 can absorb and buffer the rigid impact between the camera body 300 and the fixed bracket 10, and protect the stability of the camera body 300. In one embodiment, a buffer is attached to the surface of the gimbal bracket 100, and the buffer is made of elastic material for absorbing and buffering the rigid impact between the camera body 300 and the gimbal bracket 100.

[0076] The deformable member 50 is fixed to the fixed bracket 10, specifically, the deformable member 50 is fixed to the connecting plate 40. In one embodiment, the deformable member 50 includes a main body 51 and a plug-in portion 52, the main body 51 is attached to the fixed bracket 10, and the plug-in portion 52 is plug-connected to the fixed bracket 10. The connecting plate 40 is provided with a corresponding positioning hole or positioning groove 43, and the plug-in portion 52 is plug-connected to the positioning hole or positioning groove 43 to locate the installation position of the deformable member 50. The main body 51 is attached to the connecting plate 40, and can be fixed by fastener locking or adhesive connection, etc., which is convenient to connect and has high installation accuracy.

[0077] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0078] The above are only preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the scope of protection of the present disclosure.

Claims

1. A screw-fastening device, applied to a pan-tilt camera, the pan-tilt camera comprising a camera body and a pan-tilt bracket matching the camera body, characterized in that: The screw-fastening device is fixedly connected to the pan / tilt bracket, and the screw-fastening device includes a fixed bracket, a knob member slidably mounted on the fixed bracket, an elastic member sleeved on the knob member and respectively abutting against the fixed bracket and the knob member, and a deformable member fixedly mounted on the fixed bracket; The fixing bracket is clamped on the camera body, and the knob is screwed to the camera body to lock the camera body to the gimbal bracket through the screw-fastening device; the knob is disengaged from the camera body, and the elastic member elastically pushes the knob to move, so that the part of the knob protruding from the fixing bracket is accommodated in the fixing bracket, and the screw-fastening device squeezes the deformable member and is assembled to the camera body, so that there is a pre-tightening force between the screw-fastening device and the camera body; The fixing bracket is provided with a sliding hole penetrating therethrough and a step hole communicating with the sliding hole, the knob member slides along the sliding hole, the elastic member elastically pushes the knob member protruding from the fixing bracket to be received in the step hole, the fixing bracket comprises a main body member and a pressing block member, the main body member is provided with a mounting hole, the pressing block member is closed to the mounting hole and fixedly connected to the main body member, and the sliding hole and the step hole are formed between the main body member and the pressing block member; The mounting hole comprises a large hole portion and a small hole portion connected to the large hole portion, wherein the inner diameter of the large hole portion is larger than the rotation diameter of the portion of the knob member protruding from the fixing bracket, wherein the small hole portion is a portion of the sliding hole and the step hole; The main body comprises a main body portion and a step portion protruding from the main body portion, the mounting hole extends from the main body portion to the step portion, the pressing block is assembled to the main body portion and closed with the step portion to form the sliding hole and the step hole; The pressing block comprises a mounting portion and a boss portion protruding from the mounting portion, the boss portion is provided with a notch penetrating the pressing block, the mounting portion is fixedly connected to the main body, the boss portion and the main body are closed together so that the notch and the main body form the sliding hole and the step hole.

2. The screw-fastening device according to claim 1, characterized in that: The main body also includes a limiting portion that is tubular and protrudes from the main body, and the knob is sleeved outside the limiting portion and rotates around the limiting portion.

3. The screw-fastening device according to claim 2, characterized in that: The knob member is screwed to the main body.

4. The screw-fastening device according to claim 1, characterized in that: The main body also includes clamping parts protruding from both ends of the main body, and the clamping parts are used to clamp on both sides of the camera body.

5. The screw-fastening device according to claim 1, characterized in that: The fixing bracket also includes a connecting plate fixedly connected to the main body, the connecting plate is provided with an extended hole passing therethrough, and the extended hole is coaxial with the step hole.

6. The screw-fastening device according to claim 1, characterized in that: The deformable member comprises a main body and an inserting portion, the inserting portion is plug-connected with the fixing bracket, and the main body is attached to the fixing bracket.

7. The screw-fastening device according to any one of claims 1 to 6, characterized in that: The knob member comprises a knob body, a connecting rod portion protruding from the knob body, and a spiral portion provided on the connecting rod portion. The connecting rod portion is slidably provided on the fixing bracket. The knob body rotates to drive the spiral portion to be threadedly connected with the camera body.

8. The screw-fastening device according to claim 7, characterized in that: The rotation diameter of the spiral portion is larger than the outer diameter of the connecting rod portion.

9. The screw-fastening device according to claim 7, characterized in that: The knob body is barrel-shaped and sleeved outside the fixing bracket.

10. The screw-fastening device according to claim 9, characterized in that: The outer surface of the knob body is provided with anti-slip grooves.

11. The screw-fastening device according to claim 9, characterized in that: When the spiral portion protrudes out of the surface of the fixing bracket to a maximum value, the knob body abuts against the fixing bracket.

12. A pan-tilt camera, characterized in that: It comprises a camera body, a gimbal bracket and a screw-fastening device as claimed in any one of claims 1 to 11, wherein the screw-fastening device is fixedly connected to the gimbal bracket, the camera body is plugged and connected to the gimbal bracket, and the screw-fastening device locks the camera body to the gimbal bracket.

13. The pan-tilt camera according to claim 12, characterized in that: The rotating device is fixedly connected to the gimbal bracket and forms a concave storage space with the gimbal bracket. The camera body is at least partially stored in the storage space and is clamped by the gimbal bracket and the rotating device.

14. The pan-tilt camera according to claim 13, characterized in that: The pan / tilt bracket comprises a base, a clamping portion bent at one end of the base, and a fixing portion arranged at the other end of the base. The screw-fastening device is fixedly connected to the fixing portion and arranged opposite to the clamping portion.

15. A drone, characterized in that: It comprises a body and a pan-tilt camera as described in any one of claims 12 to 14 mounted on the body.

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