threading device

Abstract

This utility model provides a cable threading device, which includes an adjusting rod, a support member, a ball-head connector, and a fixing strap. The support member is disposed on the adjusting rod, and the end of the support member away from the adjusting rod has a spherical mounting groove with its opening facing away from the adjusting rod. At least a portion of the ball-head connector is rotatably disposed inside the mounting groove, and at least another portion of the ball-head connector extends out of the mounting groove. The fixing strap is disposed on the portion of the ball-head connector located outside the mounting groove, and is used to fix the cable to the ball-head connector. The cable threading device provided by this utility model adjusts the setting direction of the fixing strap by adjusting the relative angle between the ball-head connector and the support member, thereby adapting to cables with different directions and angles. This improves the applicability and flexibility of use, thereby improving the efficiency and accuracy of cable threading, and solving the problems of low efficiency and complex operation in the existing technology of cable threading inside PTZ cameras.

Description

Technical Field

[0001] This utility model relates to the technical field of equipment assembly, and more specifically, to a threading device. Background Technology

[0002] With the continuous advancement of technology and the upgrading demands of the security industry, medium and large-sized PTZ cameras are increasingly widely used in fields such as forest fire prevention and fishing bans. The high-precision modules integrated within PTZ cameras, such as worm gears and harmonic reducers, place higher demands on the accuracy and stability of the equipment. To achieve signal transmission and power supply for these modules, flexible cables with terminals need to be laid internally, and these cables often need to pass through complex shaft hole structures for routing.

[0003] Traditional methods for routing internal cables in PTZ cameras primarily rely on manual operation, or involve installing the cables and connectors separately, routing the cables first and then soldering them. Both methods have significant limitations:

[0004] Limitations of manual threading: Manual threading is inefficient and highly sensitive to the complexity of the shaft hole and the size of the operating space. The difficulty and time of operation increase significantly with the increase of shaft hole complexity and space constraints, which limits the speed and efficiency of mass production.

[0005] Disadvantages of step-by-step installation: Installing cables and connectors in stages increases assembly steps and extends the production cycle. Furthermore, the soldering process not only increases production costs, but also increases the difficulty and time cost of disassembling and reassembling cables during equipment maintenance.

[0006] Therefore, the existing internal cable routing of PTZ cameras is inefficient and complicated to operate. Utility Model Content

[0007] The main purpose of this utility model is to provide a cable threading device to solve the problems of low efficiency and complicated operation in the cable threading of the internal structure of pan-tilt cameras in the prior art.

[0008] To achieve the above objectives, according to one aspect of the present invention, a cable threading device is provided. The cable threading device includes an adjusting rod, a support member, a ball-head connector, and a fixing strap. The support member is disposed on the adjusting rod, and the end of the support member away from the adjusting rod has a spherical mounting groove with its opening facing away from the adjusting rod. At least a portion of the ball-head connector is rotatably disposed inside the mounting groove, and at least another portion of the ball-head connector extends out of the mounting groove. The fixing strap is disposed on the portion of the ball-head connector located outside the mounting groove, and the fixing strap is used to fix the cable to the ball-head connector.

[0009] Furthermore, the adjusting rod includes a first rod body and a second rod body. The first rod body is used to provide a grip. Along the axial direction of the adjusting rod, the second rod body is telescopically mounted on the first rod body. The first end of the second rod body is located inside the first rod body, and the second end of the second rod body is located outside the first rod body. A support member is located at the second end of the second rod body. A limiting member is provided between the first rod body and the second rod body, and the first rod body and the second rod body are rotatably connected through the limiting member.

[0010] Furthermore, the limiting member includes a ball bearing, a spiral groove is provided on one of the outer peripheral surface of the second rod and the inner peripheral surface of the first rod, and a ball bearing is provided on the other of the outer peripheral surface of the second rod and the inner peripheral surface of the first rod, with at least a portion of the ball bearing slidingly disposed inside the groove.

[0011] Furthermore, along the axial direction of the adjusting rod, the two ends of the sliding groove are spaced apart from the two end faces of the first rod or the second rod.

[0012] Furthermore, multiple second rods are provided, and adjacent second rods are telescopically connected. A limiting member is provided between adjacent second rods, and adjacent second rods are rotatably connected through the limiting member. A support member is provided on the second rod that is farthest from the first rod among the multiple second rods.

[0013] Furthermore, the support extends along the axial direction of the adjusting rod, and the support is magnetically connected to the adjusting rod, or connected by fasteners, or connected by threaded rotation.

[0014] Furthermore, the ball joint connector includes a ball joint portion and a rod structure. At least a portion of the ball joint portion is rotatably disposed inside the mounting groove, the rod structure is disposed on the ball joint portion, at least a portion of the rod structure is disposed outside the mounting groove, and a fixing strap is disposed on the rod structure.

[0015] Furthermore, the rod structure extends radially along the ball head towards the side away from the center of the ball; or the rod structure is an arc-shaped structure extending towards the side away from the center of the ball.

[0016] Furthermore, the threading device includes a locking member, which is located at the end of the support member away from the adjusting rod. The locking member has a limiting surface that is spherically co-surfaced with the mounting groove. The limiting surface slides in contact with the outer peripheral surface of the ball head portion. The locking member is used to limit the ball head portion.

[0017] Furthermore, the fixing band includes a magnetically engaging magnetic connecting band and a magnetic attracting element, with the first end of the magnetic connecting band disposed at the ball-head connector and the magnetic attracting element disposed at the second end of the magnetic connecting band; and / or multiple fixing bands are provided, with multiple fixing bands spaced apart on the rod structure along the extension direction of the rod structure of the ball-head connector.

[0018] According to the technical solution of this utility model, the cable threading device includes an adjusting rod, a support member, a ball-head connector, and a fixing strap. The support member is disposed on the adjusting rod, and the end of the support member away from the adjusting rod has a spherical mounting groove with the opening facing away from the adjusting rod. At least a part of the ball-head connector is rotatably disposed inside the mounting groove, and at least another part of the ball-head connector extends out of the mounting groove. The fixing strap is disposed on the part of the ball-head connector located outside the mounting groove, and the fixing strap is used to fix the cable to the ball-head connector.

[0019] As can be seen from the above, this application uses a ball-head connector that is rotatably installed inside the mounting groove. By adjusting the relative angle between the ball-head connector and the support, the setting direction of the fixing strap can be adjusted, making it suitable for cables with different directions and angles. This improves the applicability and flexibility of use, and enhances the efficiency and accuracy of cable installation.

[0020] This application employs a fixing strap on the ball joint connector to fix the cable to the part of the ball joint connector located outside the mounting groove. The method of fixing the cable by the fixing strap is simple to operate and helps to improve operational efficiency. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0022] Figure 1 An exploded view of the threading device of this utility model is shown;

[0023] Figure 2 A three-dimensional structural schematic diagram of the threading device of this utility model is shown, with the adjusting rod in the retracted state;

[0024] Figure 3 A three-dimensional structural schematic diagram of the threading device of this utility model is shown, with the adjusting rod in the extended state;

[0025] Figure 4 A cross-sectional view of the threading device of this utility model is shown;

[0026] Figure 5 A schematic diagram of the ball joint connector of this utility model is shown, wherein the rod structure extends along the direction of the ball diameter of the ball joint portion;

[0027] Figure 6 A schematic diagram of the ball joint connector of this utility model is shown, wherein the rod structure is an arc-shaped structure.

[0028] The above figures include the following reference numerals:

[0029] 10. Adjusting rod; 110. First rod body; 120. Second rod body; 130. Limiting component; 140. Slide groove; 20. Support component; 210. Mounting groove; 30. Ball head connector; 310. Ball head part; 320. Rod structure; 321. Mounting part; 40. Locking component; 50. Fixing strap; 510. Magnetic connecting strap; 520. Magnetic component. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0032] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0033] To address the issues of low efficiency and complex operation in the cable routing of existing pan-tilt cameras, this application provides a cable routing device for routing cables inside the pan-tilt camera through shaft holes or conduits.

[0034] like Figures 1 to 6 As shown, the cable threading device includes an adjusting rod 10, a support member 20, a ball-head connector 30, and a fixing strap 50. The support member 20 is disposed on the adjusting rod 10. The end of the support member 20 away from the adjusting rod 10 has a spherical mounting groove 210 with its opening facing away from the adjusting rod 10. At least a portion of the ball-head connector 30 is rotatably disposed inside the mounting groove 210, and at least another portion of the ball-head connector 30 extends out of the mounting groove 210. The fixing strap 50 is disposed on the portion of the ball-head connector 30 located outside the mounting groove 210, and is used to fix the cable to the ball-head connector 30.

[0035] The support rod is located at one end of the axial direction of the adjusting rod 10. The adjusting rod 10 has a grip for hand-held operation, which facilitates threading. Of course, it is not limited to hand-held operation; the adjusting rod 10 can also be fixed by a robotic arm or the like.

[0036] Specifically, this application uses a ball-head connector 30 rotatably mounted inside the mounting groove 210. The ball-head connector 30 can rotate freely in multiple directions. By adjusting the relative angle between the ball-head connector 30 and the support member 20, the setting direction of the fixing strap 50 can be adjusted, making it suitable for cables with different directions and angles. This improves the applicability and flexibility of use, and enhances the efficiency and accuracy of cable installation.

[0037] In this embodiment, the outer surface of the ball joint connector 30 and the spherical inner surface of the mounting groove 210 are slidably connected, and a damping force exists between the outer surface of the ball joint connector 30 and the spherical surface of the mounting groove 210, thereby enabling the ball joint connector 30 to be positioned at any angle. The damping coefficient between the ball joint connector 30 and the mounting groove 210 in this application is 0.2-0.5 N·m / rad.

[0038] This application employs a fixing strap 50 disposed on the ball joint connector 30 to fix the cable to the portion of the ball joint connector 30 located outside the mounting groove 210. This method of fixing the cable using the fixing strap 50 is simple to operate and improves operational efficiency. The fixing strap 50 in this application is a flexible strap, allowing the cable to be wrapped and fixed to the ball joint connector 30, thus adapting to fixing cables of any size to the ball joint connector 30 and expanding its application range.

[0039] like Figures 1 to 4 As shown, the adjusting rod 10 of this application can achieve axial distance adjustment, thus making it suitable for positioning cables of different distances and completing the cable threading. The adjusting rod 10 of this application, in conjunction with the ball-head connector 30, can achieve three-dimensional angle adjustment, thereby enabling the positioning of cables at different angles and positions.

[0040] The adjusting rod 10 is a cylindrical structure.

[0041] Specifically, the adjusting rod 10 includes a first rod body 110 and a second rod body 120. The diameter of the first rod body 110 is larger than the diameter of the second rod body 120. The first rod body 110 is used to provide a grip. Along the axial direction of the adjusting rod 10, the second rod body 120 is telescopically mounted on the first rod body 110. The first end of the second rod body 120 is located inside the first rod body 110, and the second end of the second rod body 120 is located outside the first rod body 110. The support member 20 is located at the second end of the second rod body 120.

[0042] In this embodiment, the first rod 110 and the second rod 120 form a telescopic structure, so that the second rod 120 can extend into or out of the inner cavity of the first rod 110, and one end of the second rod 120 is always kept outside the first rod 110, and the support member 20 is disposed at the end of that end, thereby avoiding interference between the support member 20 and the first rod 110.

[0043] In this embodiment, the adjusting rod 10 further includes a limiting member 130. The limiting member 130 is provided between the first rod body 110 and the second rod body 120. The first rod body 110 and the second rod body 120 are rotatably connected through the limiting member 130. The first rod body 110 and the second rod body 120 are rotatably connected through the limiting member 130, so that the second rod body 120 can achieve telescopic movement relative to the first rod body 110 by rotation.

[0044] Specifically, the first limiting member 130 is a ball bearing, and the first rod body 110 and the second rod body 120 are provided with a spiral groove 140. The rotational connection between the first rod body 110 and the second rod body 120 is realized through the sliding cooperation between the ball bearing and the groove 140.

[0045] In this embodiment, multiple second rods 120 are provided, and the multiple second rods 120 form a telescopic structure to realize multi-level adjustment of the adjusting rod 10. For example, two second rods 120 are provided, and the two second rods 120 and the first rod 110 cooperate to realize the adjustment structure of three rods.

[0046] Specifically, among the multiple rods, two adjacent second rods 120 are telescopically connected, a limiting member 130 is provided between two adjacent second rods 120, and two adjacent second rods 120 are rotatably connected through the limiting member 130. The support member 20 is provided on the second rod 120 of the multiple second rods 120 that is far away from the first rod 110.

[0047] Specifically, when the second rod 120 is in a nested state, the second rod 120 that is radially away from the first rod 110 along the first rod 110 is the second rod 120 that is far away from the first rod 110 among a plurality of second rods 120; when the second rod 120 is in an extended state, the second rod 120 that is axially away from the first rod 110 along the first rod 110 is the second rod 120 that is far away from the first rod 110 among a plurality of second rods 120.

[0048] In this embodiment, the second rods 120 have the same shape but different diameters. That is, the smaller diameter second rod 120 between two adjacent second rods 120 is telescopically disposed in the inner cavity of the larger diameter second rod 120, thereby realizing a telescopic structure formed by multiple second rods 120.

[0049] In such Figure 1 , Figure 3 and Figure 4 In the specific embodiment shown, a spiral groove 140 is provided on the outer peripheral surface of the second rod 120, and a ball is provided on the inner peripheral surface of the first rod 110. The ball is fixed on the first rod 110, and at least a portion of the ball is slidably disposed inside the groove 140. Thus, when the second rod 120 needs to be extended or retracted, the ball can slide relative to the second rod 120 inside the groove 140 when the second rod 120 rotates, thereby completing the rotation extension or retraction.

[0050] The ball bearing can be one or multiple. When multiple balls are set, they can all be slidably arranged inside the groove 140.

[0051] Along the axial direction of the adjusting rod 10, the two ends of the sliding groove 140 are spaced apart from the two end faces of the second rod 120, thereby ensuring that at least one end of the second rod 120 remains inside the first rod 110. The ball and the sliding groove 140 not only achieve rotational engagement but also serve to limit movement, ensuring that the second rod 120 will not detach from the first rod 110, thereby improving the stability of the connection between the first rod 110 and the second rod 120.

[0052] In this embodiment, the multiple second rods 120 are also rotatably connected by the limiting member 130, and the two second rods 120 form a rotatable and telescopic structure.

[0053] In a specific embodiment not shown, a spiral groove 140 is provided on the inner circumferential surface of the first rod 110, and a ball bearing is provided on the outer circumferential surface of the second rod 120. The ball bearing is fixed on the second rod 120, and at least a portion of the ball bearing is slidably disposed inside the groove 140. Thus, when the second rod 120 needs to be extended or retracted, the ball bearing can slide relative to the second rod 120 inside the groove 140 when the second rod 120 rotates, thereby completing the rotation and extension.

[0054] The ball bearing can be one or multiple. When multiple balls are set, they can all be slidably arranged inside the groove 140.

[0055] Along the axial direction of the adjusting rod 10, the two ends of the sliding groove 140 are spaced apart from the two end faces of the first rod 110, thereby ensuring that at least one end of the second rod 120 remains inside the first rod 110. The ball and the sliding groove 140 not only achieve rotational engagement but also serve to limit movement, ensuring that the second rod 120 will not detach from the first rod 110, thereby improving the stability of the connection between the first rod 110 and the second rod 120.

[0056] In this embodiment, the multiple second rods 120 are also rotatably connected by the limiting member 130, and the two second rods 120 form a rotatable and telescopic structure.

[0057] like Figure 3 and Figure 4 As shown, the support member 20 extends along the axial direction of the adjusting rod 10. The first end of the support member 20 is detachably connected to the adjusting rod 10, and the second end of the support member 20 is provided with a mounting groove 210 to form a rotational fit with the ball head connector 30.

[0058] The support member 20 and the adjusting rod 10 can be connected by magnetic attraction; the support member 20 and the adjusting rod 10 can also be connected by fasteners, such as screws or other structural components; the support member 20 and the adjusting rod 10 can also be connected by threaded rotation.

[0059] This application uses the structural arrangement of the support member 20 to form part of the ball joint connection mechanism. That is, the support member 20 and the ball joint connector 30 of this application cooperate to form the ball joint connection mechanism, thereby enabling the fixing member to rotate and adjust the setting direction relative to the adjusting rod 10 at any angle.

[0060] like Figures 3 to 6 As shown, the ball joint connector 30 includes a ball joint portion 310 and a rod structure 320. At least a portion of the ball joint portion 310 is rotatably disposed inside the mounting groove 210. The rod structure 320 is disposed on the ball joint portion 310, and at least a portion of the rod structure 320 is disposed outside the mounting groove 210. The fixing strap 50 is disposed on the rod structure 320.

[0061] The ball head portion 310 is a spherical structure and is rotatably mounted in the mounting groove 210. The rod structure 320 is mounted on the ball head portion 310 and is used to provide a fixed position for fixing the cable.

[0062] Specifically, the fixing strap 50 is provided on the rod structure 320 and along the extension direction of the rod structure 320. There can be multiple fixing straps 50, which are spaced apart.

[0063] In this embodiment, as Figure 5 As shown, the rod structure 320 can extend radially along the ball head portion 310 toward the side away from the center of the ball head portion 310, and the rod structure 320 is formed as a straight-extending structure; as Figure 6 As shown, the rod structure 320 can also be configured in an arc shape and extend toward the center of the ball away from the ball head portion 310.

[0064] The rod structure 320 of the ball head connector 30 in this application can have different shapes. In this embodiment, ball head connectors 30 with different shapes of rod structures 320 can be replaced on the support member 20 of this application. Then, according to different usage scenarios, ball head connectors 30 of corresponding shapes can be installed to realize the threading operation.

[0065] In this embodiment, during use, the ball head portion 310 of the ball head connector 30 is confined inside the mounting groove 210, and the ball head portion 310 can only rotate and cannot be removed from the mounting groove 210. The ball head portion 310 can only be removed after the threading device is disassembled when not in use.

[0066] like Figures 1 to 4 As shown, the threading device includes a locking member 40, which is disposed at the end of the support member 20 away from the adjusting rod 10. The locking member 40 has a limiting surface that is spherically co-surfaced with the mounting groove 210. The limiting surface slides in cooperation with the outer peripheral surface of the ball head portion 310. The locking member 40 is used to limit the ball head portion 310.

[0067] Among them, the locking member 40 is a locking nut, which is connected to the end of the support member 20 away from the adjusting rod 10 by a thread. The inner surface of the locking member 40 facing the adjusting rod 10 is formed into a spherical surface, and the spherical surface mates with the spherical surface of the mounting groove 210 to form a sliding fit with the outer surface of the ball head portion 310.

[0068] Specifically, the locking member 40 has a channel structure communicating with the mounting groove 210, and the rod structure 320 extends from the channel structure to the outside of the mounting groove 210.

[0069] In this embodiment, the locking member 40 and the support member 20 cooperate to limit the installation of the ball head portion 310 of the ball head connector 30. Therefore, when the ball head portion 310 needs to be replaced, the ball head portion 310 can be removed simply by disassembling the locking member 40. After the new ball head portion 310 is installed into the mounting groove 210, the ball head portion 310 can be positioned by the locking member 40, thus completing the replacement of the ball head portion 310.

[0070] In this embodiment, the fixing strap 50 includes a magnetically attached connecting strap 510 and a magnetic element 520. The first end of the magnetically attached connecting strap 510 is disposed on the ball-head connector 30, and the magnetic element 520 is disposed on the second end of the magnetically attached connecting strap 510. When it is necessary to fix the cable, the cable is tied to the pole structure 320 by the magnetically attached connecting strap 510, and then the second end of the magnetically attached connecting strap 510 is attracted to the magnetically attached connecting strap 510 by the magnetic element 520 to complete the cable fixing to the pole structure 320. The overall structure is simple to operate, applicable to cables of different sizes, and has strong compatibility, thereby improving the cable threading efficiency.

[0071] The rod structure 320 has a mounting part 321, which fixes the magnetic connecting strip 510 in place.

[0072] In operation or use, the cable threading device of this application firstly allows the operator to adjust the length of the device using the telescopic mechanism of the adjusting rod 10, based on the depth and complexity of the shaft hole, ensuring that the device can smoothly pass through the shaft hole. Next, the operator adjusts the angle of the ball joint connector 30 according to the specific orientation of the shaft hole, matching it to the orientation of the shaft hole. Subsequently, the operator uses the magnetic connecting strap 510 to fix the cable and its terminals to the ball joint connector 30, ensuring the stability and safety of the cable during threading. Finally, after the operator threads the device through the shaft hole to the designated position, they release the cable and its terminals by unlocking the magnetic connecting strap 510, completing the cable threading process. Throughout the entire process, the telescopic adjustment of the cable threading device, the angle adjustment of the ball joint connector 30, and the use of the magnetic connecting strap 510 collectively ensure the efficiency and accuracy of cable threading, while also significantly reducing operational difficulty and time consumption, thereby improving production efficiency and product quality.

[0073] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0074] This application uses a ball-head connector 30 rotatably mounted inside the mounting groove 210. The ball-head connector 30 can rotate freely in multiple directions. By adjusting the relative angle between the ball-head connector 30 and the support member 20, the setting direction of the fixing strap 50 can be adjusted. This makes it suitable for cables with different directions and angles, thereby improving the scope of application and the flexibility of use, and thus improving the efficiency and accuracy of cable installation.

[0075] This application employs a fixing strap 50 disposed on the ball joint connector 30 to fix the cable to the portion of the ball joint connector 30 located outside the mounting groove 210. This method of fixing the cable using the fixing strap 50 is simple to operate and improves operational efficiency. The fixing strap 50 in this application is a flexible strap, allowing the cable to be wrapped and fixed to the ball joint connector 30, thus adapting to fixing cables of any size to the ball joint connector 30 and expanding its application range.

[0076] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0077] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0078] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0079] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A threading device, characterized in that, include: Adjusting rod (10); A support member (20) is disposed on the adjusting rod (10), and the end of the support member (20) away from the adjusting rod (10) has a spherical mounting groove (210) with a slot facing away from the adjusting rod (10); A ball joint connector (30), at least a portion of which is rotatably disposed inside the mounting groove (210), and at least another portion of which extends out of the mounting groove (210); A fixing strap (50) is provided on the portion of the ball joint connector (30) located outside the mounting groove (210), and the fixing strap (50) is used to fix the cable to the ball joint connector (30).

2. The threading device according to claim 1, characterized in that, The adjusting rod (10) includes: A first rod (110) is used to provide a grip; The second rod (120) is telescopically mounted on the first rod (110) along the axial direction of the adjusting rod (10). The first end of the second rod (120) is located inside the first rod (110), and the second end of the second rod (120) is located outside the first rod (110). The support member (20) is located at the second end of the second rod (120). A limiting member (130) is provided between the first rod body (110) and the second rod body (120), and the first rod body (110) and the second rod body (120) are rotatably connected by the limiting member (130).

3. The threading device according to claim 2, characterized in that, The limiting member (130) includes a ball bearing. A spiral groove (140) is provided on one of the outer peripheral surface of the second rod (120) and the inner peripheral surface of the first rod (110). The ball bearing is provided on the other of the outer peripheral surface of the second rod (120) and the inner peripheral surface of the first rod (110). At least a portion of the ball bearing is slidably disposed inside the groove (140).

4. The threading device according to claim 3, characterized in that, Along the axial direction of the adjusting rod (10), the two ends of the slide groove (140) are spaced apart from the two end faces of the first rod body (110) or the second rod body (120).

5. The threading device according to claim 2, characterized in that, Multiple second rods (120) are provided, and two adjacent second rods (120) are telescopically connected. A limiting member (130) is provided between two adjacent second rods (120), and two adjacent second rods (120) are rotatably connected through the limiting member (130). The support member (20) is provided on the second rod (120) that is away from the first rod (110) among the multiple second rods (120).

6. The threading device according to claim 1, characterized in that, The support member (20) extends along the axial direction of the adjusting rod (10), and the support member (20) and the adjusting rod (10) are magnetically connected, connected by fasteners, or connected by threaded rotation.

7. The threading device according to claim 1, characterized in that, The ball joint connector (30) includes: A ball head portion (310), at least a portion of which is rotatably disposed inside the mounting groove (210); A rod structure (320) is disposed on the ball head portion (310), at least a portion of the rod structure (320) is disposed outside the mounting groove (210), and the fixing band (50) is disposed on the rod structure (320).

8. The threading device according to claim 7, characterized in that, The rod structure (320) extends radially toward the side away from the center of the ball head portion (310) along the ball head portion (310); or The rod structure (320) is an arc-shaped structure and extends toward the center of the ball away from the ball head portion (310).

9. The threading device according to claim 7, characterized in that, The threading device includes a locking member (40), which is disposed at the end of the support member (20) away from the adjusting rod (10). The locking member (40) has a limiting surface that is spherically co-surfaced with the mounting groove (210). The limiting surface slides in cooperation with the outer peripheral surface of the ball head portion (310). The locking member (40) is used to limit the ball head portion (310).

10. The threading device according to any one of claims 1 to 9, characterized in that, The fixing strap (50) includes a magnetically engaging connecting strap (510) and a magnetic element (520), wherein a first end of the magnetically engaging connecting strap (510) is disposed at the ball-head connector (30), and the magnetic element (520) is disposed at a second end of the magnetically engaging connecting strap (510); and / or Multiple fixing straps (50) are provided, and along the extension direction of the rod structure (320) of the ball head connector (30), multiple fixing straps (50) are spaced apart on the rod structure (320).

Images