Quick positioning and connecting device

Abstract

The invention relates to the technical field of connecting devices, and particularly discloses a quick positioning connecting device which comprises a connecting structure, the connecting structure comprises a first component, a second component and a third component, a first positioning assembly is mounted at the lower end of the first component, an assembly part is detachably mounted at the lower end of the second component, and a second positioning assembly is mounted at the upper end of the second component; according to the rapid positioning and connecting device, two mechanical connection modes of threads and buckles are provided, rapid mounting and dismounting of a hanging rope and a flashlight are achieved, positioning is assisted through magnetic attraction in threaded connection, a positioning column and a stud are rapidly aligned, then a nut is screwed, connection is completed through clamping of a steel ball and a clamping groove, and the nut is reversely rotated during dismounting; after the buckle connection is pre-positioned through magnetic attraction, the rotary sleeve is rotated to enable the insertion block to slide and be clamped along the spiral groove, and the insertion block can be quickly separated by reversely rotating the rotary sleeve; the two modes are easy to operate, the connection and disassembly time is greatly shortened, and the efficient operation requirements under different use habits and scenes are met.

Description

Technical Field

[0001] The present invention relates to the technical field of connection devices, and particularly relates to a quick-positioning connection device. Background Art

[0002] In scenarios such as underwater operations, outdoor activities, and outdoor adventures, a flashlight is an indispensable tool. For the convenience of carrying and using, people usually connect the flashlight to the body through a lanyard, such as hanging it around the neck, on the waist, or on the backpack. However, there are many problems with the existing lanyard connection methods for flashlights.

[0003] The existing connection methods between the lanyard and the flashlight are very inconvenient. Common connection methods are mostly simple knot tying. When it is necessary to separate the device from the lanyard, the operation process is cumbersome, and it is impossible to achieve separation quickly and conveniently. Moreover, in an underwater environment with low temperature, high pressure, and poor visibility, it is very difficult to untie the knot, which consumes a lot of time and energy, and may even be unable to be untied smoothly due to the decreased flexibility of the fingers, affecting the use.

[0004] Therefore, there is an urgent need for a quick-release hook assembly that can quickly separate the lanyard from the device and has a reliable structure. Summary of the Invention

[0005] The present invention provides a quick-positioning connection device, aiming to solve the problem in the related technology that when it is necessary to separate the device from the lanyard, the operation process is cumbersome and it is impossible to achieve separation quickly and conveniently.

[0006] A quick-positioning connection device of the present invention includes a first member, a second member, and a third member. A first positioning component is installed on the first member, and a second positioning component is installed on the second member. When the first member and the second member are connected, the first positioning component and the second positioning component are used for quick-positioning connection, so that the third member can quickly connect and lock the first member and the second member.

[0007] Preferably, the connection relationship between the first member, the second member, and the third member is a threaded connection or a snap connection.

[0008] Preferably, when the first member, the second member, and the third member are in a threaded connection, the first member is a stud, the second member is a positioning post, and the third member is a nut. The nut is rotatably installed on the outer peripheral surface of the positioning post, and the inner peripheral surface of the nut can be threadedly connected to the outer peripheral surface of the stud. A first clamping structure is provided on the positioning post.

[0009] Preferably, when the first member, the second member, and the third member are threadedly connected, the first positioning assembly includes an upper protective housing 1 and an upper magnetic block. A first upper placement groove is coaxially provided at the lower end of the stud. The upper protective housing 1 is installed in the first upper placement groove, and the upper magnetic block is embedded inside the upper protective housing 1. The second positioning assembly includes a lower protective housing 1 and a lower magnetic block. A first lower placement groove is coaxially provided at the upper end of the positioning post. The first lower placement groove corresponds vertically to the first upper placement groove. The lower protective housing 1 is installed in the first lower placement groove, and the lower magnetic block is embedded inside the lower protective housing 1. The upper magnetic block can be magnetically connected to the lower magnetic block.

[0010] Preferably, the first snap structure includes a housing 1. A first installation groove is provided on the outer peripheral surface of the stud. The housing 1 is installed in the first installation groove. A first steel ball is installed at one end of the housing 1. A first spring is provided inside the housing 1. One end of the first spring is in contact with the inner wall of the housing 1, and the other end of the first spring is in contact with the first steel ball. A first slot with the same number as the first snap structure is provided at the upper end of the nut. When the nut is fully threadedly tightened with the stud, the first steel ball can just be snapped into the first slot.

[0011] Preferably, a sealing ring is provided on the outer peripheral surface of the nut, and there is at least one sealing ring.

[0012] Preferably, when the first member, the second member, and the third member are snap-connected, the first member is a swivel sleeve, the second member is a positioning sleeve, and the third member is an insertion post. The positioning sleeve is coaxially and slidably sleeved on the outer peripheral surface of the insertion post. A plurality of insertion blocks are evenly provided at the upper end of the outer peripheral surface of the insertion post. Helical grooves with the same number as the insertion blocks are evenly provided on the inner wall of the swivel sleeve. Each insertion block can be helically snap-connected and fixed with a helical groove. A second snap structure is installed on the swivel sleeve.

[0013] Preferably, when the first member, the second member, and the third member are snap-connected, the first positioning assembly includes an upper protective housing 2 and an upper magnetic ring. A second upper placement groove is provided at the lower end of the swivel sleeve. The upper protective housing 2 is installed on the second upper placement groove, and the upper magnetic ring is embedded inside the upper protective housing 2. The second positioning assembly includes a lower protective housing 2 and a lower magnetic ring. A second lower placement groove is provided at the upper end of the positioning sleeve. The second lower placement groove is axially opposite to the second upper placement groove. The lower protective housing 2 is installed in the second lower placement groove, and the lower magnetic ring is embedded inside the lower protective housing 2. The upper magnetic ring can be magnetically connected to the lower magnetic ring.

[0014] Preferably, the second snap structure includes a housing 2. A second installation groove is provided on the inner peripheral surface of the swivel sleeve. The housing 2 is installed in the second installation groove. A second steel ball is installed at one end of the housing 2. A second spring is provided inside the housing 2. One end of the second spring is in contact with the inner wall of the housing 2, and the other end of the second spring is in contact with the second steel ball. A second slot with the same number as the second snap structure is provided at the lower end of the insertion post. When the insertion block is fully helically snap-connected and fixed with the helical groove, the second steel ball can just be snapped into the second slot.

[0015] Preferably, a suspension member is detachably installed at the upper end of the stud or the swivel sleeve, and a fitting is detachably installed at the lower end of the positioning post or the positioning sleeve.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The present quick-release hook assembly provides two mechanical connection methods of thread and snap, realizing the quick installation and disassembly of the hanging rope and the flashlight. The thread connection is assisted by magnetic attraction for positioning, enabling the positioning post and the stud to be quickly aligned, improving the alignment speed, greatly enhancing the efficiency, and then tightening the nut. The connection is completed by the engagement of the steel ball and the card slot. When disassembling, rotate the nut in the reverse direction; for the snap connection, after magnetic pre-positioning, the plug post and the rotating sleeve are quickly aligned, improving the alignment speed and greatly enhancing the efficiency. Rotate the rotating sleeve to make the plug-in block slide and clamp along the spiral groove, and the steel ball snaps into the card slot to emit a prompt sound to confirm the connection. Rotating the rotating sleeve in the reverse direction can quickly separate them; both methods are easy to operate, greatly shortening the connection and disassembly time, meeting the high-efficiency operation requirements under different usage habits and scenarios. At the same time, in some scenes with low visibility, the positioning and alignment efficiency can be improved, and the misoperation time can be reduced.

[0018] 2. Through the diversified combination of the fitting and the connection structure, it can be flexibly adapted to various scenarios. The fitting can be a hanging rope member or a universal spherical member, etc. The hanging rope member is suitable for daily carrying or hanging the flashlight; the universal spherical member can be snapped into the universal positioning slot of external equipment to realize the connection between the flashlight and equipment such as a buoyancy adjustment arm and a bracket, expanding the usage scenarios. At the same time, the two forms of thread and snap of the connection structure further enhance the adaptability flexibility. Whether it is underwater operation, outdoor exploration or daily use, the connection method and the fitting can be quickly switched according to actual needs, fully meeting the personalized usage requirements in different environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present invention.

[0020] Figure 2 is a three-dimensional structural schematic diagram when the thread connection of the present invention is in use.

[0021] Figure 3 is a sectional structural schematic diagram when the thread connection of the present invention is in use.

[0022] Figure 4 is of the present invention Figure 3 partial enlarged structural schematic diagram at A in

[0023] Figure 5 is a structural schematic diagram of the stud of the present invention.

[0024] Figure 6 is a structural schematic diagram of the positioning post of the present invention.

[0025] Figure 7It is a three-dimensional structure schematic diagram when the snap connection of the present invention is made.

[0026] Figure 8 It is an exploded structure schematic diagram when the snap connection of the present invention is made.

[0027] Figure 9 It is a schematic diagram of the swivel structure of the present invention.

[0028] Figure 10 It is a schematic diagram of the cross-sectional structure of the second snap connection structure of the present invention.

[0029] Figure 11 It is a schematic diagram of the structure of the universal spherical part of the present invention.

[0030] Reference numerals:

[0031] 2. Hanging part; 3. Fitting part; 4. First positioning component; 5. Second positioning component; 7. Stud; 8. Positioning post; 9. Nut; 10. First snap connection structure; 11. Upper protective shell one; 12. Lower protective shell one; 13. Upper placement groove one; 14. Upper magnetic attraction block; 15. Lower placement groove one; 16. Lower magnetic attraction block; 17. Housing one; 18. Installation groove one; 19. Steel ball one; 20. Spring one; 21. Card slot one; 22. Sealing ring; 23. Insertion post; 24. Swivel; 25. Positioning sleeve; 26. Insertion block; 27. Spiral groove; 28. Second snap connection structure; 29. Upper protective shell two; 30. Lower protective shell two; 31. Upper placement groove two; 32. Upper magnetic attraction ring; 33. Lower placement groove two; 34. Lower magnetic attraction ring; 35. Housing two; 36. Installation groove two; 37. Steel ball two; 38. Spring two; 39. Card slot two. Detailed implementation manners

[0032] The embodiments of the present invention will be described in detail below, and the examples of the embodiments are shown in the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0033] As Figure 1 , Figure 2 , Figure 7 shown, a quick positioning connection device of the present invention includes a first component, a second component, and a third component. A first positioning component 4 is installed on the first component, and a second positioning component 5 is installed on the second component. When the first component and the second component are connected, the first positioning component 4 and the second positioning component 5 are used for quick positioning connection, so that the third component can quickly connect and lock the first component and the second component. The connection relationship between the first component, the second component, and the third component is a threaded connection or a snap connection.

[0034] It should be noted here that the present invention is not limited to being applicable to flashlights, and the following is only an example with a flashlight.

[0035] Example 1, as Figures 1-6 and Figure 11 shown, when the first component, the second component, and the third component are threadedly connected;

[0036] The first component is a stud 7, the second component is a positioning post 8, and the third component is a nut 9. The nut 9 is rotatably installed on the outer peripheral surface of the positioning post 8, and the inner peripheral surface of the nut 9 can be threadedly connected to the outer peripheral surface of the stud 7. The suspension member 2 is detachably connected to the upper end of the stud 7, including but not limited to various connection methods such as plugging, clamping, and buckling. The fitting 3 is detachably connected to the lower end of the positioning post 8, including but not limited to various connection methods such as plugging, clamping, and buckling. A sealing ring 22 is provided on the outer peripheral surface of the nut 9, and there is at least one sealing ring 22;

[0037] A first clamping structure 10 is provided on the positioning post 8. The first clamping structure 10 includes a housing 17. An installation groove 18 is formed on the outer peripheral surface of the stud 7. The housing 17 is installed in the installation groove 18. A steel ball 19 is installed at one end of the housing 17. A spring 20 is provided inside the housing 17. One end of the spring 20 is in contact with the inner wall of the housing 17, and the other end of the spring 20 is in contact with the steel ball 19, so as to enable the steel ball 19 to retract and pop out. A first slot 21 having the same number as the first clamping structure 10 is provided on the upper end of the nut 9. When the nut 9 is completely threadedly clamped with the stud 7, the steel ball 19 can just be clamped into the first slot 21;

[0038] The first positioning assembly 4 includes an upper protective shell 11 and an upper magnetic block 14. An upper placement groove 13 is coaxially formed at the lower end of the stud 7. The upper protective shell 11 is installed in the upper placement groove 13, and the upper magnetic block 14 is embedded inside the upper protective shell 11. The second positioning assembly 5 includes a lower protective shell 12 and a lower magnetic block 16. A lower placement groove 15 is coaxially formed at the upper end of the positioning post 8. The lower placement groove 15 is vertically corresponding to the upper placement groove 13. The lower protective shell 12 is installed in the lower placement groove 15, and the lower magnetic block 16 is embedded inside the lower protective shell 12. The upper magnetic block 14 can be magnetically connected to the lower magnetic block 16.

[0039] In actual use, the lanyard can be connected to the fitting 3. At this time, the fitting 3 is a lanyard part. Connect the suspension part 2 to the tail of the flashlight. When the stud 7 is connected to the tail of the flashlight, through the magnetic attraction of the upper magnetic block 14 and the lower magnetic block 16, it can assist the positioning post 8 to quickly align with the stud 7 without manual precise positioning. The upper protective case 11 and the lower protective case 12 are used to protect the upper magnetic block 14 and the lower magnetic block 16, improve their own strength, and extend the service life. Then rotate the nut 9 so that the internal thread of the nut 9 meshes with the external thread of the stud 7, and push the nut 9 axially closer to the flashlight. During the process of the nut 9 and the stud 7 rotating in a thread, the first spring 20 will be compressed so that the first steel ball 19 enters the housing 17. When the nut 9 rotates to be completely tightened with the stud 7, the first steel ball 19 will completely fit into the first card slot 21. Thus, the first spring 20 can release its elastic force, drive the first steel ball 19 to pop out of the housing 17, and embed into the first card slot 21. And when the first steel ball 19 snaps into the first card slot 21, a "click" sound is made to indicate that the connection is in place, so as to facilitate judging whether the nut 9 and the stud 7 are engaged in place, and at the same time can improve the clamping effect, thereby achieving the connection of the lanyard and the flashlight, and can remove the positioning post 8 and the lanyard by rotating the nut 9 in the reverse direction, facilitating the separation of the lanyard and the flashlight;

[0040] And when there is a fixing groove at the bottom of the flashlight, the suspension part 2 at the upper end of the stud 7 can be removed, and the stud 7 can be directly fixedly installed in the fixing groove at the bottom of the flashlight. Repeating the above operation can also connect the lanyard and the flashlight. And when the nut 9 and the stud 7 are rotated and clamped, the external sealing ring 22 enters the inside of the fixing groove at the bottom of the flashlight and is compressed to closely adhere to the groove wall to form a sealing ring, preventing external dust or water from infiltrating through the gap between the stud 7 and the fixing groove;

[0041] When the fitting 3 is a universal spherical part, by clamping the universal spherical part with a universal positioning groove opened on an external device, the external device can be connected to the tail or bottom of the flashlight, and the external device can be disassembled by rotating the nut 9 in the reverse direction, so that this device can be applicable to different environmental operations and meet different requirements; The applicable environments of this embodiment include but are not limited to flashlights, and can also be photographic equipment or other electrical equipment.

[0042] Embodiment Two. In order to be applicable to a variety of use environments, the inner wall of the stud 7 can be directly threadedly connected to the outer peripheral surface of the positioning post 8. At this time, the upper placement groove 13 is arranged at the bottom of the stud 7, and the lower placement groove 15 is arranged on the upper end surface of the nut 9. Thus, in use, through the magnetic connection of the upper magnetic block 14 and the lower magnetic block 16, the nut and the stud are quickly aligned, and the positioning post is threadedly fixed to the stud by rotation.

[0043] Embodiment Three, as Figure 1 and Figures 7-11 shown, when the first component, the second component, and the third component are snap-connected;

[0044] The first component is the rotating sleeve 24, the second component is the positioning sleeve 25, and the third component is the inserting post 23. The positioning sleeve 25 is coaxially and slidably sleeved on the outer peripheral surface of the inserting post 23. The suspension member 2 is detachably connected to the upper end of the rotating sleeve 24, including but not limited to various connection methods such as plugging, clamping, and buckling. The fitting 3 is detachably connected to the lower end of the positioning sleeve 25, including but not limited to various connection methods such as plugging, clamping, and buckling. At this time, the fitting 3 can limit the positioning sleeve 25, so that the positioning sleeve 25 is fixed on the inserting post 23. A plurality of inserting blocks 26 are uniformly arranged on the upper end of the outer peripheral surface of the inserting post 23, and spiral grooves 27 with the same number as the inserting blocks 26 are uniformly formed in the inner wall of the rotating sleeve 24. Each inserting block 26 can be spirally clamped and fixed with a spiral groove 27.

[0045] A second clamping structure 28 is installed on the rotating sleeve 24. The second clamping structure 28 includes a second housing 35. An installation groove 36 is formed in the inner peripheral surface of the rotating sleeve 24. The second housing 35 is installed in the installation groove 36. A second steel ball 37 is installed at one end of the second housing 35. A second spring 38 is arranged inside the second housing 35. One end of the second spring 38 is in contact with the inner wall of the second housing 35, and the other end of the second spring 38 is in contact with the second steel ball 37, so as to enable the second steel ball 37 to retract and eject. A second clamping groove 39 with the same number as the second clamping structure 28 is arranged at the lower end of the inserting post 23. When the inserting block 26 is completely spirally clamped and fixed with the spiral groove 27, the second steel ball 37 can just be clamped into the second clamping groove 39.

[0046] The first positioning component 4 includes an upper protective housing 29 and an upper magnetic ring 32. An upper placement groove 31 is formed at the lower end of the rotating sleeve 24. The upper protective housing 29 is installed on the upper placement groove 31. The upper magnetic ring 32 is embedded inside the upper protective housing 29. The second positioning component 5 includes a lower protective housing 30 and a lower magnetic ring 34. A lower placement groove 33 is formed at the upper end of the positioning sleeve 25. The lower placement groove 33 is axially opposite to the upper placement groove 31. The lower protective housing 30 is installed in the lower placement groove 33. The lower magnetic ring 34 is embedded inside the lower protective housing 30. The upper magnetic ring 32 can be magnetically connected to the lower magnetic ring 34.

[0047] In actual use, the lanyard can be connected to the fitting 3. At this time, the fitting 3 is a lanyard part. Connect the suspension part 2 to the tail of the flashlight, so that the rotating sleeve 24 is connected to the tail of the flashlight. Thus, through the magnetic adsorption of the upper magnetic ring 32 and the lower magnetic ring 34, it can assist the positioning sleeve 25 and the plug post 23 to quickly align with the rotating sleeve 24 without manual precise positioning. The upper protective shell II 29 and the lower protective shell II 30 are used to protect the upper magnetic ring 32 and the lower magnetic ring 34, improve their own strength, and extend the service life. Subsequently, rotate the positioning sleeve 25, so that the plug post 23 rotates synchronously. The plug-in block 26 at the lower end of the outer peripheral surface of the plug post 23 slides spirally along the spiral groove 27 on the inner wall of the rotating sleeve 24. As the plug post 23 rotates, the plug-in block 26 gradually moves towards the end of the spiral groove 27 to achieve a tight connection. And during the rotation of the plug-in block 26 and the spiral groove 27, the second spring 38 will be compressed so that the second steel ball 37 enters the housing II 35. When the plug-in block 26 slides to the end of the spiral groove 27, that is, when the plug-in block 26 is completely spirally clamped and fixed with the spiral groove 27, the second steel ball 37 will completely fit with the second card slot 39. Thus, the second spring 38 can release elastic force, drive the second steel ball 37 to pop out of the housing II 35 and embed into the second card slot 39. And when the second steel ball 37 is stuck into the second card slot 39, a "click" sound is emitted to indicate that the connection is in place, so as to facilitate judging whether the plug-in block 26 is engaged with the spiral groove 27 in place, and at the same time can improve the clamping effect. Furthermore, it can achieve the connection between the lanyard and the flashlight, and by rotating the positioning sleeve 25 in the reverse direction, the positioning sleeve 25 and the plug post 23 can be removed, facilitating the separation of the lanyard and the flashlight;

[0048] And when there is a fixing groove at the bottom of the flashlight, the suspension part 2 at the upper end of the rotating sleeve 24 can be removed, and the rotating sleeve 24 can be directly installed in the fixing groove at the bottom of the flashlight. Repeating the above operations can also connect the lanyard and the flashlight;

[0049] When the fitting 3 is a universal spherical part, by clamping the universal spherical part with a universal positioning groove opened on an external device, the external device can be connected to the tail or the bottom of the flashlight, and the external device can be disassembled by rotating the positioning sleeve 25 in the reverse direction, so that this device can be applicable to different environmental operations and meet different requirements.

[0050] The present invention can be commonly connected to a variety of devices, with a wide adaptation range. It can achieve the standardization, quick switching and reuse of structural interfaces, effectively reduce the misoperation time, improve the connection efficiency, and reduce the probability of connection failure. For example, when used in scenarios with low visibility such as underwater and at night, this device can quickly perform positioning and alignment through the first positioning component 4 and the second positioning component 5, shorten the alignment time, improve the efficiency, and at the same time quickly disassemble and assemble through threaded or snap connections. Thus, this device can ensure the connection strength, meet the portable conditions, have good reliability and practicability, and be applicable to a variety of scenarios.

[0051] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation on the present invention.

[0052] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0053] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be construed as a limitation on the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A quick positioning connection device, characterized in that, It includes a first component, a second component, and a third component. A first positioning assembly (4) is installed on the first component, and a second positioning assembly (5) is installed on the second component. When the first component and the second component are connected, the first positioning assembly (4) and the second positioning assembly (5) are used for quick positioning connection, so that the third component can quickly connect and lock the first component and the second component.

2. The quick positioning connection device according to claim 1, wherein The connection relationship among the first component, the second component, and the third component is a threaded connection or a snap connection.

3. The quick positioning connection device according to claim 2, characterized in that When the first component, the second component, and the third component are in a threaded connection, the first component is a stud (7), the second component is a positioning post (8), and the third component is a nut (9). The nut (9) is rotatably installed on the outer peripheral surface of the positioning post (8), and the inner peripheral surface of the nut (9) can be in threaded connection with the outer peripheral surface of the stud (7). A first clamping structure (10) is provided on the positioning post (8).

4. The quick positioning and connecting device according to claim 3, wherein When the first component, the second component, and the third component are in a threaded connection, the first positioning assembly (4) includes an upper protective shell one (11) and an upper magnetic block (14). An upper placement groove one (13) is coaxially opened at the lower end of the stud (7). The upper protective shell one (11) is installed in the upper placement groove one (13), and the upper magnetic block (14) is embedded inside the upper protective shell one (11). The second positioning assembly (5) includes a lower protective shell one (12) and a lower magnetic block (16). A lower placement groove one (15) is coaxially opened at the upper end of the positioning post (8). The lower placement groove one (15) corresponds vertically to the upper placement groove one (13). The lower protective shell one (12) is installed in the lower placement groove one (15), and the lower magnetic block (16) is embedded inside the lower protective shell one (12). The upper magnetic block (14) can be magnetically connected to the lower magnetic block (16).

5. The quick positioning connection device according to claim 3, characterized in that, The first clamping structure (10) includes a shell one (17). An installation groove one (18) is opened on the outer peripheral surface of the stud (7). The shell one (17) is installed in the installation groove one (18). A steel ball one (19) is installed at one end of the shell one (17). A first spring (20) is arranged inside the shell one (17). One end of the first spring (20) is in contact with the inner wall of the shell one (17), and the other end of the first spring (20) is in contact with the steel ball one (19). The upper end of the nut (9) is provided with a first slot (21) having the same number as the first clamping structure (10). When the nut (9) is completely threadedly clamped with the stud (7), the steel ball one (19) can just be clamped into the first slot (21).

6. The quick positioning connection device according to claim 3, characterized in that A sealing ring (22) is arranged on the outer peripheral surface of the nut (9), and there is at least one sealing ring (22).

7. The quick positioning connection device according to claim 2, wherein When the first member, the second member, and the third member are snap-connected, the first member is a rotating sleeve (24), the second member is a positioning sleeve (25), and the third member is an inserting post (23). The positioning sleeve (25) is coaxially and slidably sleeved on the outer peripheral surface of the inserting post (23). A plurality of inserting blocks (26) are uniformly arranged at the upper end of the outer peripheral surface of the inserting post (23). A plurality of spiral grooves (27) with the same number as the inserting blocks (26) are uniformly formed on the inner wall of the rotating sleeve (24). Each inserting block (26) can be helically snap-connected and fixed with a spiral groove (27). A second snap-connection structure (28) is installed on the rotating sleeve (24).

8. A quick positioning connection device according to claim 7, characterized in that, When the first member, the second member, and the third member are snap-connected, the first positioning assembly (4) includes an upper protective shell two (29) and an upper magnetic attraction ring (32). An upper placing groove two (31) is formed at the lower end of the rotating sleeve (24). The upper protective shell two (29) is installed on the upper placing groove two (31). The upper magnetic attraction ring (32) is embedded inside the upper protective shell two (29). The second positioning assembly (5) includes a lower protective shell two (30) and a lower magnetic attraction ring (34). A lower placing groove two (33) is formed at the upper end of the positioning sleeve (25). The lower placing groove two (33) is axially opposite to the upper placing groove two (31). The lower protective shell two (30) is installed in the lower placing groove two (33). The lower magnetic attraction ring (34) is embedded inside the lower protective shell two (30). The upper magnetic attraction ring (32) can be magnetically connected to the lower magnetic attraction ring (34).

9. The quick positioning connection device according to claim 1, characterized in that, The second snap-connection structure (28) includes a shell two (35). An installation groove two (36) is formed on the inner peripheral surface of the rotating sleeve (24). The shell two (35) is installed in the installation groove two (36). A steel ball two (37) is installed at one end of the shell two (35). A spring two (38) is arranged inside the shell two (35). One end of the spring two (38) is in contact with the inner wall of the shell two (35), and the other end of the spring two (38) is in contact with the steel ball two (37). A second groove (39) with the same number as the second snap-connection structure (28) is arranged at the lower end of the inserting post (23). When the inserting block (26) is completely helically snap-connected and fixed with the spiral groove (27), the steel ball two (37) can just be snapped into the second groove (39).

10. A quick positioning connection device according to claim 1, characterized in that, A hanging member (2) is detachably installed at the upper end of the stud (7) or the rotating sleeve (24), and a fitting (3) is detachably installed at the lower end of the positioning post (8) or the positioning sleeve (25).

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