Pan-tilt mechanism locked through relative movement

Abstract

The invention discloses a relative movement locking cradle head mechanism, which comprises a seat body, a cradle head locking mechanism, a cradle head locking mechanism and a cradle head locking mechanism, and is characterized in that the seat body is internally provided with a movable cavity with an opening; the ball head is rotatably arranged in the movable cavity; one end of the connecting rod is connected with the ball head, the connecting rod extends out of the opening of the movable cavity, and the other section of the connecting rod is connected with a mounting seat for connecting external equipment; the rotary sleeve is movably arranged outside the seat body in a sleeving manner and can rotate and move up and down relative to the seat body; and the jacking piece is connected to the interior of the rotating sleeve through a thread structure and can move up and down relative to the rotating sleeve and the seat body. During use, external equipment is firstly connected to the mounting base, then the ball head is driven to rotate in the movable cavity to adjust the angle of the external equipment, then the rotating sleeve rotates relative to the jacking piece, the rotating sleeve and the jacking piece move oppositely through the threaded structure, and when one end of the rotating sleeve is jacked on the external equipment, the rotating sleeve is driven to rotate. The opening edge of the movable cavity is pushed by the jacking piece to abut against the surface of the ball head, and the effects of large locking force and stable and reliable supporting are achieved.

Description

Technical Field

[0001] This invention relates to a gimbal mechanism with relative movement locking. Background Technology

[0002] In photography or projection work, a gimbal is often set up on a tripod to mount external equipment such as cameras or projectors. In order to adjust the shooting or projection direction, the gimbal is usually equipped with a ball joint to adjust the angle and position.

[0003] The gimbal typically includes a base, which contains a spherical cavity with an opening. The ball head of the ball joint is rotatably located within the spherical cavity, and the joint extends out along the opening of the spherical cavity. A threaded push rod is provided on the side of the base, and the end of the threaded push rod can abut against the ball head to lock the ball head at the opening of the spherical cavity.

[0004] However, in actual use, the external device needs to be connected to the connecting rod first. After the angle of the external device is adjusted, the threaded push rod is screwed on. At this time, the ball head is pushed by the threaded push rod and moves towards the opening of the spherical cavity as the active component. Only a local surface of the ball head in the direction of the push force of the threaded push rod is pressed against the edge of the opening of the spherical cavity. The locking force is small and it is difficult to cope with the heavy load of the external device on the connecting rod. Moreover, when the length of the connecting rod is long, the connecting rod may become unstable when supporting the external device with a heavy load, thus causing the ball head to rotate relative to the spherical cavity due to the reaction force. In addition, this type of gimbal requires separate locking of the ball head and the external device, making the operation very cumbersome and inconvenient for users. Summary of the Invention

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a relatively movable locking gimbal mechanism that can simultaneously clamp the ball head and the external device, achieving a large locking force and stable and reliable support. Moreover, it is very convenient to use and operate, improving user experience and work efficiency.

[0006] According to an embodiment of the present invention, a pan-tilt mechanism with relative movement locking includes: a base body having an open movable cavity inside the base body; a ball head rotatably disposed within the movable cavity; a connecting rod having one end connected to the ball head, the connecting rod extending from the opening of the movable cavity, and the other end of the connecting rod connected to a mounting seat for connecting an external device; a rotating sleeve movably sleeved outside the base body, capable of rotating and moving up and down relative to the base body; and a clamping member connected to the inside of the rotating sleeve via a threaded structure, capable of moving up and down relative to the rotating sleeve and the base body; when the rotating sleeve rotates relative to the clamping member, the rotating sleeve and the clamping member move in opposite directions, the clamping member pushes the opening edge of the movable cavity to press against the surface of the ball head, and one end of the rotating sleeve presses against the external device.

[0007] A gimbal mechanism for relative movement locking according to an embodiment of the present invention has at least the following beneficial effects: The above-mentioned gimbal mechanism first connects the external device to the mounting base, and then drives the ball head to rotate in the movable cavity so that the external device on the mounting base swings relative to the base body to the required working angle. At this time, the rotating sleeve rotates relative to the clamping member. Through the threaded structure, the rotating sleeve and the clamping member move in opposite directions. While one end of the rotating sleeve is clamped to the external device, the clamping member pushes the opening edge of the movable cavity to clamp the surface of the ball head. This can lock the ball head and the external device at the same time, achieving a large locking force and a stable and reliable support effect. Moreover, it is very convenient to use and operate, improving user experience and work efficiency.

[0008] In some embodiments of the present invention, the rotating sleeve is provided with an internal threaded hole, the clamping member includes a threaded post that mates with the internal threaded hole, a guide rod hole is provided through the middle of the threaded post along its length, the connecting rod is movably passed through the guide rod hole, and one end of the threaded post is provided with a pressing part that abuts the seat against the ball head.

[0009] In some embodiments of the present invention, the movable cavity has a first spherical concave surface adapted to the ball head, the seat has a spherical convex surface facing the pressing part, the pressing part has a second spherical concave surface cooperating with the spherical convex surface, and the centers of the spherical convex surface, the first spherical concave surface and the second spherical concave surface coincide.

[0010] In some embodiments of the present invention, the middle portion of the rotating sleeve is provided with an installation channel extending through it along its axial direction. The base, the clamping member, and the mounting seat are arranged sequentially along the length direction of the installation channel. When the rotating sleeve rotates relative to the clamping member to move the clamping member closer to the base, the end of the rotating sleeve closer to the mounting seat moves away from the clamping member so that the mounting seat is received within the installation channel.

[0011] In some embodiments of the present invention, the cross-sectional shape of the connecting rod and the cross-sectional shape of the guide rod hole are both non-circular. The two ends of the connecting rod are respectively provided with a first screw portion and a second screw portion. The mounting base is provided with a first threaded mounting hole that mates with the first screw portion. The ball head is provided with a second threaded mounting hole that mates with the second screw portion. The opening of the movable cavity is a frustum-shaped channel that gradually expands away from the ball head.

[0012] In some embodiments of the present invention, the side wall of the mounting base is recessed and provided with a horizontally arranged sliding insert groove. The sliding insert groove is detachably mounted with a mounting plate. The mounting plate is provided with a mounting stud extending out of the mounting base for connecting the external device. One end of the rotating sleeve moves to the top of the mounting base and abuts against the external device, so that the mounting plate abuts against the sliding insert groove upward.

[0013] In some embodiments of the present invention, the sliding mounting groove includes a sliding groove for the mounting plate to slide laterally back and forth and a positioning groove communicating with the upper part of the end of the sliding groove. The outer periphery of the positioning groove matches the outer periphery of the mounting plate. An anti-disengagement step is formed between the positioning groove and the sliding groove. When one end of the rotating sleeve is pressed against the external device, the mounting plate enters the positioning groove.

[0014] In some embodiments of the present invention, the mounting base is provided with a slot arranged along the axial direction of the rotating sleeve, a plug block is detachably installed in the slot, the plug block is provided with a mounting stud for connecting the external device extending out of the mounting base, the side of the plug block is provided with a clamping groove, and the side of the mounting base is provided with at least two clamping blocks telescopically arranged by a spring member, the clamping blocks being connected to a drive structure that drives all the clamping blocks to move closer to each other to extend into the clamping groove.

[0015] In some embodiments of the present invention, the driving structure includes a narrow frustum-shaped inclined surface on the inner circumferential wall of the rotating sleeve. The outer side of the clamping block can abut against the frustum-shaped inclined surface under the action of the spring. When one end of the rotating sleeve moves above the mounting base and abuts against the external device, the clamping block moves downward along the frustum-shaped inclined surface to extend into the corresponding clamping groove.

[0016] In some embodiments of the present invention, a pipe is also included. The seat includes a lower support fixedly disposed inside one end of the pipe and an upper support partially extending outside the pipe. The interior of both the lower support and the upper support has a spherical groove that matches the ball head. The spherical groove of the lower support and the spherical groove of the upper support define the movable cavity. The opening of the movable cavity passes through the portion of the upper support extending out of the pipe and faces the lower support.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a cross-sectional schematic diagram of an embodiment of the relative movement locking gimbal mechanism of the present invention when the ball head and external device are not locked. Figure 2 for Figure 1 Schematic diagram of the cross section when locking the ball head and external device in the embodiment. Figure 3 for Figure 1 Schematic diagram of the structural breakdown of the embodiment; Figure 4 This is a cross-sectional schematic diagram of a second embodiment of the relative movement locking gimbal mechanism of the present invention when the ball head and external device are not locked. Figure 5 for Figure 4 Schematic diagram of the cross section when locking the ball head and external device in the embodiment. Figure 6 for Figure 4 Schematic diagram of structural breakdown of the embodiment.

[0019] Figure label: 100 base; 101 movable cavity; 102 first spherical concave surface; 103 spherical convex surface; 104 frustum-shaped channel; 110 lower support; 120 upper support; 200 ball head; 300 connecting rod; 400 mounting base; 410 sliding insert groove; 411 sliding groove; 412 positioning groove; 420 slot; 430 clamping block; 440 spring component; 500 clamping component; 510 threaded post; 520 guide rod hole; 530 pressing part; 531 second spherical concave surface; 600 rotating sleeve; 610 internal threaded hole; 620 frustum-shaped inclined surface; 700 mounting plate; 710 mounting stud; 800 insert block; 810 clamping groove; 900 pipe fitting. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] In the description of this invention, it should be understood that the orientation descriptions, such as the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer", indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0022] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] See Figures 1 to 3 , or see Figures 4 to 6An embodiment of the present invention provides a gimbal mechanism for relative movement locking, comprising: a base 100, wherein the base 100 has an open movable cavity 101; a ball head 200 rotatably disposed within the movable cavity 101; a connecting rod 300, one end of which is connected to the ball head 200, the connecting rod 300 extending from the opening of the movable cavity 101, and the other end of the connecting rod 300 being connected to a mounting base 400 for connecting an external device; and a rotating sleeve 600 movably sleeved on the outside of the base 100, capable of relative movement locking. The base 100 rotates and moves vertically; the clamping member 500 is connected to the inside of the rotating sleeve 600 by a threaded structure and can move vertically relative to the rotating sleeve 600 and the base 100; when the rotating sleeve 600 rotates relative to the clamping member 500, the rotating sleeve 600 and the clamping member 500 move in opposite directions, the clamping member 500 pushes the opening edge of the movable cavity 101 to press against the surface of the ball head 200, and one end of the rotating sleeve 600 presses against the external device.

[0025] The above-described pan-tilt mechanism first connects the external device to the mounting base 400, then drives the ball head 200 to rotate within the movable cavity 101, causing the external device on the mounting base 400 to swing relative to the base 100 to the required working angle. Next, the rotating sleeve 600 rotates relative to the clamping member 500. Through a threaded structure, the rotating sleeve 600 and the clamping member 500 move in opposite directions. During this process, one end of the rotating sleeve 600 gradually moves away from the base 100 until it is clamped against the external device. While one end of the cylinder 600 is pressed against the external device, the clamping member 500 gradually approaches the base 100 until the clamping member 500 pushes the opening edge of the movable cavity 101 against the surface of the ball head 200. This simultaneously locks the ball head 200 and the external device. As the base 100 moves relative to the ball head 200 as the active member, it applies force to the ball head 200 at all positions of the opening edge of the movable cavity 101, increasing the contact area for pressure application and achieving a large locking force and stable and reliable support. Moreover, it is very convenient to use and operate, improving user experience and work efficiency.

[0026] It should be noted that when one end of the rotating sleeve 600 is pressed against the external device, since the ball head 200 is connected to the mounting base 400 through the connecting rod 300, the ball head 200 cannot be displaced along the axial direction of the rotating sleeve 600. Therefore, the pressing member 500 can press the opening edge of the movable cavity 101 against the surface of the ball head 200 by applying pressure to the base 100.

[0027] See Figure 1 and Figure 2In some embodiments of the present invention, the rotating sleeve 600 has an internal threaded hole 610 inside, and the clamping member 500 includes a threaded post 510 that mates with the internal threaded hole 610. A guide rod hole 520 is provided through the middle of the threaded post 510 along its length. The connecting rod 300 is movably inserted through the guide rod hole 520. One end of the threaded post 510 has a pressing portion 530 that abuts the seat 100 against the ball head 200. It can be understood that, with the cooperation of the internal threaded hole 610 and the threaded post 510, the rotating sleeve 600 moves helically relative to the clamping member 500. Before the rotating sleeve 600 contacts the external device, the connecting rod 300 can move along the guide rod hole 520, thereby achieving opposite movements between the rotating sleeve 600 and the clamping member 500, which in turn drives the clamping member 500 to push the seat 100 against the ball head 200.

[0028] See Figure 1 and Figure 2 Or see Figure 4 and Figure 5 In some embodiments of the present invention, the movable cavity 101 has a first spherical concave surface 102 adapted to the ball head 200, the seat 100 has a spherical convex surface 103 facing the pressing part 530, the pressing part 530 has a second spherical concave surface 531 that cooperates with the spherical convex surface 103, and the centers of the spherical convex surface 103, the first spherical concave surface 102 and the second spherical concave surface 531 coincide. It is understandable that the surface of the ball head 200 can rotate freely along the first spherical concave surface 102 to achieve the angle adjustment of the external device on the mounting base 400. If the weight of the external device is large, the pressure between the ball head 200 and the first spherical concave surface 102 is large, which may cause the base 100 to have difficulty in stably pressing the ball head 200. At this time, the cooperation of the second spherical concave surface 531 and the spherical convex surface 103 is conducive to the clamping member 500 abutting against the base 100 on a large area in the direction of the ball head 200, thereby improving the clamping stability.

[0029] See Figure 2 or Figure 5In some embodiments of the present invention, a mounting channel is provided through the middle of the rotating sleeve 600 along its axial direction. The base 100, the clamping member 500, and the mounting seat 400 are arranged sequentially along the length of the mounting channel. When the rotating sleeve 600 rotates relative to the clamping member 500 to move the clamping member 500 closer to the base 100, the end of the rotating sleeve 600 near the mounting seat 400 moves away from the clamping member 500 so that the mounting seat 400 is accommodated within the mounting channel. This structure allows all components of the gimbal mechanism to be housed within the mounting channel of the rotating sleeve 600, which is beneficial for structural compactness and miniaturization, and facilitates user operation to simultaneously lock the ball head 200 and the external device or simultaneously unlock the ball head 200 and the external device. Specifically, when the rotating sleeve 600 rotates in the first clockwise direction, the end of the rotating sleeve 600 away from the seat 100 moves in opposite directions to the clamping member 500. The clamping member 500 moves until the opening edge of the movable cavity 101 that pushes the seat 100 abuts against the surface of the ball head 200. The end of the rotating sleeve 600 away from the seat 100 continues to move away from the seat 100 until the mounting base 400 is received within the mounting channel. At this time, the rotating sleeve 600 moves away from the seat. One end of the 100 can abut against the bottom of the external device; when the rotating sleeve 600 rotates in the second clockwise direction, the end of the rotating sleeve 600 away from the seat 100 and the clamping member 500 move towards each other, the clamping member 500 leaves the seat 100, the opening edge of the movable cavity 101 no longer presses against the surface of the ball head 200, the end of the rotating sleeve 600 away from the seat 100 separates from the bottom of the external device, and the mounting base 400 extends out of the end of the rotating sleeve 600. One of the first clockwise direction and the second clockwise direction is clockwise, and the other is counterclockwise. The clockwise or counterclockwise rotation is determined by the rotation direction of the internal threaded hole 610 and the threaded post 510 to lock the ball head 200 and the external device.

[0030] See Figure 3 Or see Figure 6In some embodiments of the present invention, the cross-sectional shape of the connecting rod 300 and the cross-sectional shape of the guide rod hole 520 are both non-circular. The connecting rod 300 has a first screw portion and a second screw portion at both ends. The mounting base 400 has a first threaded mounting hole that mates with the first screw portion. The ball head 200 has a second threaded mounting hole that mates with the second screw portion. The opening of the movable cavity 101 is a frustum-shaped channel 104 that gradually expands away from the ball head 200. In this embodiment, the first screw portion is connected to the first threaded mounting hole at the bottom of the mounting base 400. The ball head 200 has a nut that mates with the second screw portion inside, and the threaded hole of this nut is the second threaded mounting hole, thereby achieving a fixed connection between the ball head 200, the connecting rod 300, and the mounting base 400. The cross-sectional shapes of the connecting rod 300 and the guide rod hole 520 are both regular polygons, so that when the rotating sleeve 600 rotates relative to the clamping member 500, it will not cause the clamping member 500 to rotate. In addition, the opening of the movable cavity 101 is a frustum-shaped channel 104 that gradually widens away from the ball head 200, which allows the connecting rod 300 to swing at a large angle relative to the seat 100.

[0031] See Figures 1 to 3 In some embodiments of the present invention, the side wall of the mounting base 400 is recessed and provided with a horizontally arranged sliding insert groove 410. The sliding insert groove 410 is detachably mounted with a mounting plate 700. The mounting plate 700 is provided with a mounting stud 710 extending out of the mounting base 400 for connecting the external device. One end of the rotating sleeve 600 moves to above the mounting base 400 and abuts against the external device, so that the mounting plate 700 abuts upward against the sliding insert groove 410. It should be noted that in this embodiment, the external device is first tightened onto the mounting stud 710 of the mounting plate 700, and then the mounting plate 700 is inserted into the inlet of the sliding insert groove 410. At this time, the mounting plate 700 is prone to vertical movement relative to the sliding insert groove 410. Then, the rotating sleeve 600 extends upward relative to the mounting base 400 to abut against the external device, and the mounting plate 700 is subjected to force and abuts against the sliding insert groove 410, thus simultaneously positioning and fixing the mounting plate 700 on the mounting base 400.

[0032] See Figure 3In some embodiments of the present invention, in order to prevent the mounting plate 700 from detaching along the entrance of the sliding mounting groove 410 when the external device is subjected to a lateral collision, the sliding mounting groove 410 includes a sliding groove 411 for the mounting plate 700 to slide laterally back and forth and a positioning groove 412 communicating with the upper part of the end of the sliding groove 411. The outer peripheral contour of the positioning groove 412 matches the outer peripheral contour of the mounting plate 700. An anti-detachment step is formed between the positioning groove 412 and the sliding groove 411. When one end of the rotating sleeve 600 is pressed against the external device, the mounting plate 700 enters the positioning groove 412, and the mounting plate 700 is blocked by the anti-detachment step and cannot move laterally directly.

[0033] See Figures 4 to 6 In some embodiments of the present invention, the mounting base 400 is provided with a slot 420 arranged along the axial direction of the rotating sleeve 600. A plug 800 is detachably mounted in the slot 420. The plug 800 is provided with a mounting stud 710 extending beyond the mounting base 400 for connecting the external device. A clamping groove 810 is provided on the side of the plug 800. At least two clamping blocks 430 are telescopically provided on the side of the mounting base 400 via a spring member 440. The clamping blocks 430 are connected to a drive structure that drives all the clamping blocks 430 to move closer together and extend into the clamping groove 810. It should be noted that in this embodiment, the external device is first tightened onto the mounting stud 710 of the plug 800, then the plug 800 is inserted into the slot 420, and then the drive structure is used to drive the clamping blocks 430 to move closer together and extend into the clamping groove 810, thereby clamping and fixing the plug 800 and stabilizing the external device relative to the mounting base 400.

[0034] See Figure 4 and Figure 5In some embodiments of the present invention, the driving structure includes a narrow frustum 620 on the inner peripheral wall of the rotating sleeve 600. The outer side of the clamping block 430 can abut against the frustum 620 under the action of the spring 440. When one end of the rotating sleeve 600 moves above the mounting base 400 and abuts against the external device, the clamping block 430 moves downward along the frustum 620 so that the clamping block 430 extends into the corresponding clamping groove 810. It should be noted that when the insert 800 is inserted into the slot 420, the insert 800 can still move within the slot 420. When the rotating sleeve 600 rotates relative to the clamping member 500 and the seat 100, one end of the rotating sleeve 600 moves above the mounting base 400 and abuts against the external device. During this process, the clamping block 430 moves downward along the truncated cone inclined surface 620 to compress the spring member 440. All clamping blocks 430 can remain inserted into the corresponding clamping groove 810 and clamp the insert 800, so there is no need for a separate operation to fix the insert 800 on the mounting base 400, which is very convenient to use.

[0035] See Figures 4 to 6 In some embodiments of the present invention, a tube 900 is further included. The base 100 includes a lower support 110 fixedly disposed inside one end of the tube 900 and an upper support 120 partially extending outside the tube 900. Both the lower support 110 and the upper support 120 have spherical grooves that match the ball head 200. The spherical grooves of the lower support 110 and the upper support 120 define the movable cavity 101. The opening of the movable cavity 101 penetrates the portion of the upper support 120 extending out of the tube 900 and faces the lower support 110. It should be noted that the tube 900 can be connected to a camera bracket or a projection bracket to support the gimbal mechanism. When the external device is a projector, the end of the tube 900 away from the base 100 can be fixed to the ceiling, thereby suspending the gimbal mechanism for use.

[0036] Specifically, in this embodiment, the inner peripheral wall of the pipe fitting 900 is provided with internal threads, and the outer peripheral walls of the lower support 110 and the upper support 120 are provided with external threads to connect to the pipe fitting 900. In order to improve the connection firmness, the external threads of the lower support 110 and the upper support 120 can also be coated with a curable adhesive.

[0037] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A gimbal mechanism with relative movement locking, characterized in that, include: The seat (100) has an open movable cavity (101) inside. The ball head (200) is rotatably disposed within the movable cavity (101); A connecting rod (300) is connected at one end to the ball head (200), the connecting rod (300) extends out from the opening of the movable cavity (101), and the other end of the connecting rod (300) is connected to a mounting base (400) for connecting external equipment. A rotating sleeve (600) is movably sleeved on the outside of the seat (100) and can rotate and move up and down relative to the seat (100); The clamping member (500) is connected to the inside of the rotating sleeve (600) by a threaded structure and can move up and down relative to the rotating sleeve (600) and the seat (100); When the rotating sleeve (600) rotates relative to the clamping member (500), the rotating sleeve (600) and the clamping member (500) move in opposite directions. The clamping member (500) pushes the opening edge of the movable cavity (101) to press against the surface of the ball head (200), and one end of the rotating sleeve (600) presses against the external device.

2. The gimbal mechanism with relative movement locking according to claim 1, characterized in that: The rotating sleeve (600) has an internal threaded hole (610) inside. The clamping member (500) includes a threaded post (510) that mates with the internal threaded hole (610). A guide rod hole (520) is provided through the middle of the threaded post (510) along its length. The connecting rod (300) is movably inserted through the guide rod hole (520). One end of the threaded post (510) is provided with a pressing part (530) that abuts the seat (100) against the ball head (200).

3. The gimbal mechanism for relative movement locking according to claim 2, characterized in that: The movable cavity (101) has a first spherical concave surface (102) that is adapted to the ball head (200), the seat (100) has a spherical convex surface (103) facing the pressing part (530), the pressing part (530) has a second spherical concave surface (531) that cooperates with the spherical convex surface (103), and the centers of the spherical convex surface (103), the first spherical concave surface (102) and the second spherical concave surface (531) coincide.

4. The gimbal mechanism for relative movement locking according to claim 2, characterized in that: An installation channel is provided through the middle of the rotating sleeve (600) along its axial direction. The base (100), the clamping member (500), and the mounting seat (400) are arranged sequentially along the length of the installation channel. When the rotating sleeve (600) rotates relative to the clamping member (500) to move the clamping member (500) closer to the base (100), the end of the rotating sleeve (600) close to the mounting seat (400) moves away from the clamping member (500) so that the mounting seat (400) is received within the installation channel.

5. The gimbal mechanism for relative movement locking according to claim 4, characterized in that: The cross-sectional shape of the connecting rod (300) and the cross-sectional shape of the guide rod hole (520) are both non-circular. The two ends of the connecting rod (300) are respectively provided with a first screw part and a second screw part. The mounting base (400) is provided with a first threaded mounting hole that mates with the first screw part. The ball head (200) is provided with a second threaded mounting hole that mates with the second screw part. The opening of the movable cavity (101) is a frustum-shaped channel (104) that gradually expands away from the ball head (200).

6. The gimbal mechanism for relative movement locking according to claim 4, characterized in that: The mounting base (400) has a horizontally arranged sliding groove (410) recessed in its side wall. The sliding groove (410) is detachably fitted with a mounting plate (700). The mounting plate (700) is provided with a mounting stud (710) extending out of the mounting base (400) for connecting the external device. One end of the rotating sleeve (600) moves to the top of the mounting base (400) and abuts against the external device, so that the mounting plate (700) presses upward against the sliding groove (410).

7. The gimbal mechanism for relative movement locking according to claim 6, characterized in that: The sliding mounting groove (410) includes a sliding groove (411) for the mounting plate (700) to slide laterally back and forth and a positioning groove (412) connected to the upper part of the end of the sliding groove (411). The outer periphery of the positioning groove (412) matches the outer periphery of the mounting plate (700). An anti-disengagement step is formed between the positioning groove (412) and the sliding groove (411). When one end of the rotating sleeve (600) is pressed against the external device, the mounting plate (700) enters the positioning groove (412).

8. The gimbal mechanism for relative movement locking according to claim 4, characterized in that: The mounting base (400) is provided with a slot (420) arranged along the axial direction of the rotating sleeve (600). A plug (800) is detachably installed in the slot (420). The plug (800) is provided with a mounting stud (710) for connecting the external device, which extends out of the mounting base (400). The side of the plug (800) is provided with a clamping groove (810). At least two clamping blocks (430) are telescopically arranged on the side of the mounting base (400) by a spring (440). The clamping blocks (430) are connected to a drive structure that drives all the clamping blocks (430) to move closer to each other and extend into the clamping groove (810).

9. A gimbal mechanism for relative movement locking according to claim 8, characterized in that: The drive structure includes a narrow frustum-shaped inclined surface (620) on the inner circumferential wall of the rotating sleeve (600). The outer side of the clamping block (430) can abut against the frustum-shaped inclined surface (620) under the action of the spring (440). When one end of the rotating sleeve (600) moves above the mounting base (400) and abuts against the external device, the clamping block (430) moves downward along the frustum-shaped inclined surface (620) so that the clamping block (430) extends into the corresponding clamping groove (810).

10. A gimbal mechanism for relative movement locking according to claim 1, characterized in that: It also includes a pipe fitting (900), the seat (100) includes a lower support (110) fixedly disposed inside one end of the pipe fitting (900) and an upper support (120) partially extending outside the pipe fitting (900). The interior of the lower support (110) and the upper support (120) both have spherical grooves that match the ball head (200). The spherical groove of the lower support (110) and the spherical groove of the upper support (120) define the movable cavity (101). The opening of the movable cavity (101) passes through the portion of the upper support (120) extending out of the pipe fitting (900) and faces the lower support (110).

Images