Universal locking connecting device

Abstract

The utility model discloses a universal locking connecting device which comprises a driving assembly, a first main body part, a first connecting rod and a first universal rotating part, the first main body part comprises a first outer sleeve and a first movable part, and a first through hole penetrating through the first outer sleeve and a first side hole communicated with the first through hole are formed in the central axis of the first outer sleeve; the first movable part is arranged in the first through hole, and the driving assembly can move in the first through hole to drive the first movable part to move in the axial direction of the first side hole; one end of the first connecting rod penetrates through the first side hole and can abut against the first movable part, and the first movable part can drive the first connecting rod to move in the axial direction of the first movable part; the first universal rotating part is connected with the other end of the first connecting rod, and the first universal rotating part can be locked when the first connecting rod moves. The locking device is simple in structure, stable in locking and easy to maintain and replace.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a universal locking connection device. Background Technology

[0002] In spinal surgery, connecting devices are frequently used to connect surgical instruments, but existing connecting devices have complex structures and often experience unstable connections during use. Furthermore, these devices have two or more connecting rods for connecting surgical instruments and the operating table; existing devices cannot flexibly adjust the direction of each connecting rod according to the actual surgical situation, making it difficult to simultaneously lock and secure two or more connecting rods, thus affecting the surgical procedure. Utility Model Content

[0003] The purpose of this application is to provide a universal locking connection device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] A universal locking connection device, comprising:

[0006] Driver components;

[0007] The first main body includes a first outer sleeve and a first movable member. The first outer sleeve has a through hole and a first side hole communicating with the through hole at its central axis. The first movable member is disposed in the first through hole. The driving assembly can move in the first through hole to drive the first movable member to move axially along the first side hole.

[0008] A first link, one end of which passes through the first side hole and can abut against the first movable member, the first movable member being able to drive the first link to move along its axial direction;

[0009] The first universal rotating part is connected to the other end of the first connecting rod, and the movement of the first connecting rod can lock the first universal rotating part.

[0010] The universal locking connection device of this utility model, by setting a first movable component assembly between the drive assembly and the first connecting rod, enables the drive assembly to drive the first connecting rod to move more efficiently to lock the first universal rotating part, facilitating the operator's positioning of surgical instruments or operating tables connected to the first universal rotating part. At the same time, this device has a simple structure and is easy to manufacture; the single component is easy to repair and replace, improving the practicality of the device.

[0011] In some embodiments, the universal locking connection device further includes:

[0012] The second main body is located below the first main body. The second main body includes a second outer sleeve and a second movable member. The second outer sleeve has a through second hole and a second side hole communicating with the through second hole at its central axis. The second movable member is located inside the second through hole. The driving assembly can move inside the second through hole to drive the second movable member to move axially along the second side hole.

[0013] The second link has one end passing through the second side hole and able to abut against the second movable member, and the second movable member can drive the second link to move along its axial direction.

[0014] The second universal rotating part is connected to the other end of the second connecting rod, and the movement of the second connecting rod can lock the second universal rotating part.

[0015] The universal locking connection device of this utility model embodiment has a drive component that can simultaneously drive the first movable part and the second movable part to move, thereby driving the first connecting rod and the second connecting rod to move, so as to lock the first universal rotating part and the second universal rotating part respectively. This enables the simultaneous locking of the first universal rotating part and the second universal rotating part, making it convenient for operators to simultaneously position surgical instruments or operating tables connected to the first universal rotating part and the second universal connecting part.

[0016] In some embodiments, the drive assembly includes a screw and a wrench. The screw includes a shank and a nut. The shank passes through the second through hole and the first through hole in sequence. The end of the shank away from the nut is threadedly connected to the wrench. The wrench is capable of driving the screw to move along its axial direction to drive the first movable member and the second movable member to move.

[0017] In some embodiments, the second jacket is rotatable relative to the first jacket, and the first through hole and the second through hole are connected.

[0018] In some embodiments, the drive assembly further includes a first pressure plate sleeved on the rod portion, the first pressure plate being disposed within a first through hole of the first outer sleeve, the first pressure plate having a first arc-shaped groove, the first pressure plate being capable of driving the first movable member to move so that a portion of the first movable member is located within the first arc-shaped groove.

[0019] In some embodiments, the drive assembly further includes a second pressure plate sleeved on the rod portion, the second pressure plate being disposed within a second through hole of the second outer sleeve, the second pressure plate having a second arc-shaped groove, and the second pressure plate being capable of driving the second movable member to move so that a portion of the second movable member is located within the second arc-shaped groove.

[0020] In some embodiments, the drive assembly further includes a first pad sleeved on the rod portion, one end of the first pad abutting against the first pressure plate, and the other end being able to contact the wrench, the wrench being able to drive the first pad to move so as to move the first pressure plate.

[0021] In some embodiments, the nut has a radially extending protrusion, one end of which abuts against the second pressure plate, and the wrench can drive the protrusion to move so as to move the second pressure plate.

[0022] In some embodiments, both the first movable member and the second movable member are ball bearings.

[0023] In some embodiments, the first pressure plate includes two relatively parallel end faces and a side surface connecting the two end faces. The side surface includes two first planes and two first arc surfaces that are respectively symmetrically arranged. A first arc-shaped groove is formed in the side wall where the first arc surface is located. The first arc-shaped groove passes through the upper and lower end faces of the first pressure plate.

[0024] In some embodiments, the second pressure plate includes two relatively parallel end faces and a side surface connecting the two end faces. The side surface includes two second planes and two second arc surfaces that are respectively symmetrically arranged. A second arc-shaped groove is formed in the side wall where the second arc surface is located. The second arc-shaped groove penetrates the upper and lower end faces of the second pressure plate.

[0025] In some embodiments, the second main body portion further includes a second limiting plate connected to the second outer sleeve. The second limiting plate is located at the end of the second through hole away from the first main body portion. The protrusion of the nut passes through the second limiting plate, and the second limiting plate can abut against the end of the protrusion away from the second pressure plate.

[0026] In some embodiments, the first pad is T-shaped and includes a first pad plate and a first pad body connected vertically. The first pad plate abuts against the first pressure plate, and the first pad body abuts against the wrench. The side of the first pad plate includes two third planes and two third arc surfaces respectively symmetrically arranged. The third planes of the first pad plate are parallel to the first planes of the first pressure plate. The first main body also includes a first limiting plate connected to the first outer sleeve. The first limiting plate is located at the end of the first through hole away from the second main body. The first pad body passes through the first limiting plate, and the first limiting plate can abut against the end of the first pad plate away from the first pressure plate.

[0027] In some embodiments, the protrusion of the nut includes two fourth planes and two fourth arc surfaces arranged symmetrically, and the fourth planes of the protrusion are parallel to the second plane of the second pressure plate.

[0028] In some embodiments, the first limiting plate includes a first annular plate and a first leg extending from the lower surface of the first annular plate. The first leg has a first threaded hole, and the first outer sleeve has a second threaded hole. A bolt passes through the first threaded hole and the second threaded hole to fix the first limiting plate and the first outer sleeve together, thereby limiting the first pressure plate, the first movable member and the first pad in the first through hole.

[0029] In some embodiments, the second limiting plate includes a second annular plate and a second leg extending from the lower surface of the second annular plate. The second leg has a third threaded hole, and the second outer sleeve has a fourth threaded hole. Bolts pass through the third threaded hole and the fourth threaded hole to fix the second limiting plate and the second outer sleeve together, thereby limiting the second pressure plate, the second movable member and the protrusion within the second through hole.

[0030] In some embodiments, the first outer sleeve is a columnar body, the first through hole is a stepped hole, including a first light hole and a second light hole, the diameter of the first light hole is larger than the diameter of the second light hole, the first limiting plate, the first pad, the first pressure plate and the first movable member are all disposed in the first light hole, and the first movable member abuts against the stepped portion of the first light hole and the second light hole.

[0031] In some embodiments, the second outer sleeve is a columnar body, the second through hole is a stepped hole, including a third light hole and a fourth light hole, the diameter of the third light hole is larger than the diameter of the fourth light hole, the second limiting plate, the protrusion, the second pressure plate and the second movable member are disposed in the third light hole, and the second movable member abuts against the stepped portion of the third light hole and the fourth light hole.

[0032] In some embodiments, the universal locking connection device further includes a first outer tube, one end of which is connected to the first outer sleeve, and the other end of which is connected to the first universal rotating part, and the first connecting rod is movably inserted through the first outer tube.

[0033] In some embodiments, the universal locking connection device further includes a second outer tube, one end of which is connected to the second outer sleeve, and the other end of which is connected to the second universal rotating part, and the second connecting rod is movably inserted through the second outer tube.

[0034] In some embodiments, the first universal rotating part includes a first locking body, the first locking body is connected to the first outer tube, the first locking body is provided with a through first mounting cavity, the first connecting rod is movably inserted through one end of the first mounting cavity, the other end of the first mounting cavity is movably inserted with a first ball joint rocker arm, and the first connecting rod can abut against the first ball joint rocker arm.

[0035] In some embodiments, the second universal rotating part includes a second locking body, the second locking body is connected to the second outer tube, the second locking body is provided with a through second mounting cavity, the second connecting rod is movably inserted through one end of the second mounting cavity, the other end of the second mounting cavity is movably inserted with a second ball joint rocker arm, and the second connecting rod can abut against the second ball joint rocker arm.

[0036] In some embodiments, the first locking body includes a first locking sleeve and a second locking sleeve connected by threads. The first outer tube is connected to the first locking sleeve. The first locking sleeve has a third through hole penetrating both ends of its face. The second locking sleeve has a first cavity penetrating both ends of its face. The third through hole and the first cavity communicate to form the first mounting cavity. The first connecting rod can pass through the third through hole and extend into the first cavity to abut against the first ball joint rod.

[0037] In some embodiments, the second locking body includes a threaded third locking sleeve and a fourth locking sleeve, the second outer tube is connected to the third locking sleeve, the third locking sleeve is provided with a fourth through hole penetrating both ends of the sleeve, the fourth locking sleeve is provided with a second cavity penetrating both ends of the sleeve, the fourth through hole and the second cavity communicate to form the second mounting cavity, and the second connecting rod can pass through the fourth through hole and extend into the second cavity to abut against the second ball joint rod. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the universal locking connection device in one embodiment of the present invention;

[0040] Figure 2 This is a top view of the universal locking connection device in one embodiment of the present invention;

[0041] Figure 3 for Figure 2 AA section view;

[0042] Figure 4 A half-section of the first outer jacket in one embodiment of this utility model Figure 1 ;

[0043] Figure 5 A half-section of the first outer jacket in one embodiment of this utility model Figure 2 ;

[0044] Figure 6 This is a top view of the first pressure plate in one embodiment of the present invention;

[0045] Figure 7 for Figure 6 Sectional view of BB;

[0046] Figure 8 This is a schematic diagram of the screw structure in one embodiment of the present invention;

[0047] Figure 9 This is a schematic diagram of the structure of the first pad in one embodiment of the present invention;

[0048] Figure 10 This is a schematic diagram of the structure of the first limiting plate in one embodiment of the present invention;

[0049] Figure 11 This is a schematic diagram of the structure of the first locking body in one embodiment of the present invention.

[0050] in:

[0051] 1. Driver components;

[0052] 11. Screw; 111. Rod section; 112. Nut; 113. Protrusion; 1131. Fourth plane; 1132. Fourth arc surface;

[0053] 12. Wrench;

[0054] 13. First pressure plate; 131. First arc-shaped groove; 132. First flat surface; 133. First arc surface;

[0055] 14. Second pressure plate;

[0056] 15. First pad block; 151. First pad plate; 1511. Third plane; 1512. Third arc surface; 152. First pad body;

[0057] 2. First main body section;

[0058] 21. First outer casing; 211. First through hole; 2111. First through hole; 2112. Second through hole; 212. First side hole; 213. Second threaded hole;

[0059] 22. First active item;

[0060] 23. First limiting plate; 231. First annular plate; 232. First support leg; 2321. First threaded hole;

[0061] 3. First link;

[0062] 4. First universal joint;

[0063] 41. First locking sleeve; 411. Third through hole;

[0064] 42. Second locking sleeve; 421. First cavity; 422. First support block;

[0065] 43. First ball-head pendulum;

[0066] 5. Second main body section;

[0067] 51. Second coat;

[0068] 52. Second active item;

[0069] 53. Second limiting plate;

[0070] 6. Second link;

[0071] 7. Second universal joint;

[0072] 71. Third locking outer cover;

[0073] 72. Fourth locking outer cover;

[0074] 73. Second ball-head pendulum;

[0075] 8. First outer tube;

[0076] 9. Second outer tube. Detailed Implementation

[0077] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0078] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the system or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0079] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an abutment, 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 utility model based on the specific circumstances.

[0080] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0081] This embodiment provides a universal locking connection device, such as Figures 1-11 As shown, the assembly includes a drive component 1, a first main body 2, a first connecting rod 3, and a first universal joint 4. The first main body 2 includes a first outer sleeve 21 and a first movable member 22. The first outer sleeve 21 has a through hole 211 and a first side hole 212 communicating with the through hole 211 at its central axis. The first movable member 22 is disposed in the first through hole 211, and the drive component 1 can move within the first through hole 211 to drive the first movable member 22 to move axially along the first side hole 212. One end of the first connecting rod 3 passes through the first side hole 212 and can abut against the first movable member 22, and the first movable member 22 can drive the first connecting rod 3 to move axially. The first universal joint 4 is connected to the other end of the first connecting rod 3, and the movement of the first connecting rod 3 can lock the first universal joint 4.

[0082] By providing a first movable component 22 between the drive assembly 1 and the first connecting rod 3, the drive assembly 1 can more efficiently drive the first connecting rod 3 to lock the first universal rotating part 4, facilitating the operator to lock and position the surgical instruments or operating table connected to the first universal rotating part 4. Furthermore, the universal locking connection device in this embodiment has a simple structure and is easy to manufacture; the single-component first movable component 22 is easy to maintain and replace, improving the practicality of the device.

[0083] Optionally, the universal locking connection device in this embodiment further includes a second main body 5, a second connecting rod 6, and a second universal rotating part 7. The second main body 5 is located below the first main body 2. The second main body 5 includes a second outer sleeve 51 and a second movable member 52. The second outer sleeve 51 has a through second hole and a second side hole communicating with the second through hole at its central axis. The second movable member 52 is located in the second through hole, and the drive assembly 1 can move within the second through hole to drive the second movable member 52 to move axially along the second side hole. One end of the second connecting rod 6 passes through the second side hole and can abut against the second movable member 52. The second movable member 52 can drive the second connecting rod 6 to move axially. The second universal rotating part 7 is connected to the other end of the second connecting rod 6, and the movement of the second connecting rod 6 can lock the second universal rotating part 7. The first universal rotating part 4 and the second universal rotating part 7 are used to connect instruments or operating tables that need to be fixed, and can be universally adjusted in angle and locked.

[0084] In this embodiment, the drive assembly 1 can simultaneously drive the first movable part 22 and the second movable part 52 to move, thereby driving the first connecting rod 3 and the second connecting rod 6 to move, so as to lock the first universal rotating part 4 and the second universal rotating part 7 respectively and simultaneously, which facilitates the operator to simultaneously position the surgical instruments or operating table connected to the first universal rotating part 4 and the second universal connecting part 7.

[0085] In this embodiment, the second outer sleeve 51 can rotate relative to the first outer sleeve 21 to adapt to different positional requirements of instruments or operating tables that need to be connected and fixed. At the same time, the first through hole 211 of the first outer sleeve 21 and the second through hole of the second outer sleeve 51 are connected, so that the drive assembly 1 can pass through the first outer sleeve 21 and the second outer sleeve 51 vertically, while locking the first universal rotating part 4 and the second universal connecting part 7.

[0086] In this embodiment, as Figure 3 and Figure 8 As shown, the drive assembly 1 includes a screw 11 and a wrench 12. The screw 11 includes a rod 111 and a nut 112. The rod 111 passes through the second through hole and the first through hole 211 in sequence. The end of the rod 111 away from the nut 112 is threadedly connected to the wrench 12. The wrench 12 can drive the screw 11 to move along its axial direction, thereby driving the first movable member 22 and the second movable member 52 to move. The movement of the first movable member 22 and the second movable member 52 can respectively drive the first connecting rod 3 and the second connecting rod 6 to move along their axial direction, thereby achieving simultaneous locking of the first universal rotating part 4 and the second universal rotating part 7.

[0087] In this embodiment, as Figure 3As shown, the drive assembly 1 also includes a first pressure plate 13 sleeved on the rod portion 111. The first pressure plate 13 is disposed in the first through hole 211 of the first outer sleeve 21. The first pressure plate 13 is provided with a first arc-shaped groove 131. The first pressure plate 13 can drive the first movable member 22 to move so that the first movable member 22 is partially located in the first arc-shaped groove 131.

[0088] Furthermore, such as Figure 6 and Figure 7 As shown, the first pressure plate 13 includes two relatively parallel end faces and a side surface connecting the two end faces. The side surface includes two symmetrically arranged first planes 132 and two first arc surfaces 133. A first arc-shaped groove 131 is formed in the side wall where the first arc surface 133 is located. The first arc-shaped groove 131 penetrates the upper and lower end faces of the first pressure plate 13. The axis of the first arc-shaped groove 131 is inclined about the central axis of the first outer sleeve 21, and when viewed from above, the axis of the first arc-shaped groove 131 is inclined towards the direction closer to the central axis of the first outer sleeve 21.

[0089] In this embodiment, as Figure 3 As shown, the drive assembly 1 also includes a second pressure plate 14 sleeved on the rod portion 111. The structure of the second pressure plate 14 is the same as that of the first pressure plate 13. The second pressure plate 14 is disposed in the second through hole of the second outer sleeve 51. The second pressure plate 14 is provided with a second arc-shaped groove. The second pressure plate 14 can drive the second movable member 52 to move so that the second movable member 52 is partially located in the second arc-shaped groove.

[0090] Furthermore, the second pressure plate 14 includes two relatively parallel end faces and a side surface connecting the two end faces. The side surface includes two symmetrically arranged second planes and two second arc surfaces. A second arc-shaped groove is formed in the side wall where the second arc surface is located, and the second arc-shaped groove penetrates through the upper and lower end faces of the second pressure plate 14. The axis of the second arc-shaped groove is inclined about the central axis of the second outer sleeve 51, and when viewed from above, the axis of the second arc-shaped groove is inclined in a direction away from the central axis of the second outer sleeve 51.

[0091] When the wrench 12 is turned, the first pressure plate 13 will move downward under force, causing the first arc-shaped groove 131 to push the first movable part 22 outward; at the same time, the screw 11 drives the second pressure plate 14 to move upward, causing the second arc-shaped groove to push the second movable part 52 outward, thereby achieving simultaneous locking of the first universal rotating part 4 and the second universal rotating part 7.

[0092] In this embodiment, both the first movable component 22 and the second movable component 52 are ball bearings. In other embodiments, the first movable component 22 and the second movable component 52 may be other movable components such as sliders.

[0093] In this embodiment, as Figure 3As shown, the drive assembly 1 also includes a first pad 15 sleeved on the rod 111. One end of the first pad 15 abuts against the first pressure plate 13, and the other end can contact the wrench 12. The wrench 12 can drive the first pad 15 to move so as to move the first pressure plate 13.

[0094] Furthermore, such as Figure 9 As shown, the first pad 15 is T-shaped and includes a first pad plate 151 and a first pad body 152 connected vertically. The first pad plate 151 abuts against the first pressure plate 13, and the first pad body 152 abuts against the wrench 12.

[0095] Furthermore, the side of the first pad 151 includes two third planes 1511 and two third arc surfaces 1512 respectively symmetrically arranged, and the third planes 1511 of the first pad 151 are parallel to the first planes 132 of the first pressure plate 13.

[0096] In this embodiment, as Figure 8 As shown, the nut 112 has a radially extending protrusion 113. One end of the protrusion 113 abuts against the second pressure plate 14. The protrusion 113 can play a similar role to the first pad 15. The wrench 12 can drive the protrusion 113 to move so as to move the second pressure plate 14.

[0097] Furthermore, the protrusion 113 of the nut 112 includes two fourth planes 1131 and two fourth arc surfaces 1132 respectively symmetrically arranged, and the fourth planes 1131 of the protrusion 113 are parallel to the second plane of the second pressure plate 14.

[0098] In this embodiment, as Figure 3 As shown, the first main body 2 also includes a first limiting plate 23 connected to the first outer sleeve 21. The first limiting plate 23 is located at the end of the first through hole 211 away from the second main body 5. The first pad 152 passes through the first limiting plate 23. The first limiting plate 23 can abut against the end of the first pad 151 away from the first pressure plate 13.

[0099] Furthermore, such as Figure 10 As shown, the first limiting plate 23 includes a first annular plate 231 and a first support leg 232 extending from the lower surface of the first annular plate 231. The first support leg 232 is provided with a first threaded hole 2321, and the first outer sleeve 21 is provided with a second threaded hole 213. Bolts pass through the first threaded hole 2321 and the second threaded hole 213 to fix the first limiting plate 23 and the first outer sleeve 21 together, which is used to limit the first pressure plate 13, the first movable member 22 and the first pad 151 in the first through hole 211.

[0100] In this embodiment, the third plane 1511 of the first pad 151 and the first plane 132 of the first pressure plate 13 are designed to avoid the first leg 232 of the first limiting plate 23. In other embodiments, the first limiting plate 23 may only include the first annular plate 231, eliminating the first leg 232 structure. The first limiting plate 23 and the first outer sleeve 21 are connected by welding or threading. In this case, the structures of the first pad 151 and the first pressure plate 13 can be adjusted accordingly. The first pad 151 can be a regular cylinder, and the first pressure plate 13 can also be a regular cylindrical structure, without needing to cut off a portion to avoid the first leg 232 of the first limiting plate 23.

[0101] In this embodiment, as Figure 3 As shown, the second main body 5 also includes a second limiting plate 53 connected to the second outer sleeve 51. The structure of the second limiting plate 53 is the same as that of the first limiting plate 23. The second limiting plate 53 is located at the end of the second through hole away from the first main body 2. The protrusion 113 of the nut 112 passes through the second limiting plate 53, and the second limiting plate 53 can abut against the end of the protrusion 113 away from the second pressure plate 14.

[0102] Furthermore, the second limiting plate 53 includes a second annular plate and a second leg extending from the lower surface of the second annular plate. The second leg is provided with a third threaded hole, and the second outer sleeve 51 is provided with a fourth threaded hole. Bolts pass through the third threaded hole and the fourth threaded hole to fix the second limiting plate 53 and the second outer sleeve 51 together, which is used to limit the second pressure plate 14, the second movable member 52 and the protrusion 113 in the second through hole.

[0103] Similarly, the design of the fourth plane of the protrusion 113 and the second plane of the second pressure plate 53 is to avoid the second leg of the second limiting plate 53. In other embodiments, the second limiting plate 53 may only include the second annular plate, eliminating the second leg structure design, and the second limiting plate 53 and the second outer sleeve 51 are connected by welding or threading. In this case, the structure of the protrusion 113 and the second pressure plate 53 can be adjusted accordingly. The protrusion 113 may be a regular cylinder, and the second pressure plate 53 may also be a regular cylindrical structure, without needing to cut off a portion to avoid the second leg of the second limiting plate 53.

[0104] In this embodiment, as Figure 4 and Figure 5 As shown, the first outer sleeve 21 is a columnar body, and the first through hole 211 is a stepped hole, including a first light hole 2111 and a second light hole 2112. The diameter of the first light hole 2111 is larger than the diameter of the second light hole 2112. The first limiting plate 23, the first pad 151, the first pressure plate 13 and the first movable member 22 are all disposed in the first light hole 2111. The first movable member 22 abuts against the stepped portion of the first light hole 2111 and the second light hole 2112.

[0105] In this embodiment, the structure of the second outer sleeve 51 is the same as that of the first outer sleeve 21. The second outer sleeve 51 is a columnar body, and the second through hole is a stepped hole, including a third light hole and a fourth light hole. The diameter of the third light hole is larger than the diameter of the fourth light hole. The second limiting plate 53, the protrusion 113, the second pressure plate 14, and the second movable member 52 are disposed in the third light hole, and the second movable member 52 abuts against the stepped portion of the third light hole and the fourth light hole.

[0106] In this embodiment, as Figure 1 and Figure 2 As shown, the universal locking connection device also includes a first outer tube 8, one end of which is connected to the first outer sleeve 21, and the other end of which is connected to the first universal rotating part 4. The first connecting rod 3 is movably inserted through the first outer tube 8.

[0107] In this embodiment, as Figure 1 and Figure 2 As shown, the universal locking connection device also includes a second outer tube 9. One end of the second outer tube 9 is connected to the second outer sleeve 51, and the other end of the second outer tube 9 is connected to the second universal rotating part 7. The second connecting rod 6 is movably inserted through the second outer tube 9.

[0108] In this embodiment, as Figures 1-3 As shown, the first universal rotating part 4 includes a first locking body, which is connected to the first outer tube 8. A first mounting cavity is provided inside the first locking body. A first connecting rod 3 is movably inserted through one end of the first mounting cavity, and a first ball joint rocker arm 43 is movably inserted through the other end of the first mounting cavity. The first connecting rod 3 can abut against the first ball joint rocker arm 43.

[0109] Furthermore, such as Figure 11 As shown, the first locking body includes a first locking sleeve 41 and a second locking sleeve 42 connected by threads. The first outer tube 8 is connected to the first locking sleeve 41. The first locking sleeve 41 is provided with a third through hole 411 penetrating through its two end faces. The second locking sleeve 42 is provided with a first cavity 421 penetrating through its two end faces. The third through hole 411 and the first cavity 421 are connected to form a first mounting cavity. The first connecting rod 3 can pass through the third through hole 411 and extend into the first cavity 421 to abut against the first ball head rocker arm 43.

[0110] Furthermore, such as Figure 3 As shown, the first locking body also includes a first support block 422, which is disposed in the first cavity 421. The first support block 422 has a spherical groove at one end that abuts against the ball head of the first ball head rocker 43, and the other end of the first support block 422 abuts against the first connecting rod 3.

[0111] In this embodiment, the structure of the second universal rotating part 7 is the same as that of the first universal rotating part 4. The second universal rotating part 7 includes a second locking body, which is connected to the second outer tube 9. A second mounting cavity is provided inside the second locking body. A second connecting rod 6 is movably inserted through one end of the second mounting cavity, and a second ball joint rocker arm 73 is movably inserted through the other end of the second mounting cavity. The second connecting rod 6 can abut against the second ball joint rocker arm 73.

[0112] Furthermore, the second locking body includes a third locking sleeve 71 and a fourth locking sleeve 72 connected by threads. The second outer tube 9 is connected to the third locking sleeve 71. The third locking sleeve 71 is provided with a fourth through hole penetrating both ends of its face. The fourth locking sleeve 72 is provided with a second cavity penetrating both ends of its face. The fourth through hole and the second cavity are connected to form a second mounting cavity. The second connecting rod 6 can pass through the fourth through hole and extend into the second cavity to abut against the second ball head rocker rod 73.

[0113] Furthermore, the second locking body also includes a second support block, which is located in the second cavity. The end of the second support block that abuts against the ball head of the second ball head rocker arm 73 is provided with a spherical groove, and the other end of the second support block abuts against the second connecting rod 6.

[0114] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A universal locking connection device, characterized in that The universal locking connection device comprises: a driving assembly; a first body part, which comprises a first sleeve and a first movable element, a first through hole and a first side hole are arranged on the central axis of the first sleeve, the first movable element is arranged in the first through hole, and the driving assembly can move in the first through hole to drive the first movable element to move along the axial direction of the first side hole; a first connecting rod, one end of the first connecting rod passes through the first side hole and can abut against the first movable element, and the first movable element can drive the first connecting rod to move along the axial direction thereof; a first universal rotating part, which is connected with the other end of the first connecting rod, and the movement of the first connecting rod can lock the first universal rotating part.

2. The universal locking connection device of claim 1, wherein, Further comprising: a second body part, which is arranged below the first body part, the second body part comprises a second sleeve and a second movable element, a second through hole and a second side hole are arranged on the central axis of the second sleeve, the second movable element is arranged in the second through hole, and the driving assembly can move in the second through hole to drive the second movable element to move along the axial direction of the second side hole; a second connecting rod, one end of the second connecting rod passes through the second side hole and can abut against the second movable element, and the second movable element can drive the second connecting rod to move along the axial direction thereof; a second universal rotating part, which is connected with the other end of the second connecting rod, and the movement of the second connecting rod can lock the second universal rotating part.

3. The universal locking connection device according to claim 2, wherein the driving assembly comprises a screw rod and a wrench, the screw rod comprises a rod part and a nut, the rod part passes through the second through hole and the first through hole in sequence, one end of the rod part away from the nut is threadedly connected with the wrench, and the wrench can drive the screw rod to move along the axial direction thereof to drive the first movable element and the second movable element to move. And / or, the second sleeve can rotate relative to the first sleeve, and the first through hole and the second through hole are connected.

4. The universal locking connection device according to claim 3, wherein the driving assembly further comprises a first pressing plate sleeved on the rod part, the first pressing plate is arranged in the first through hole of the first sleeve, the first pressing plate is provided with a first arc-shaped groove, and the first pressing plate can drive the first movable element to move so that the first movable element is partially located in the first arc-shaped groove. And / or, the driving assembly further comprises a second pressing plate sleeved on the rod part, the second pressing plate is arranged in the second through hole of the second sleeve, the second pressing plate is provided with a second arc-shaped groove, and the second pressing plate can drive the second movable element to move so that the second movable element is partially located in the second arc-shaped groove.

5. The universal locking connection device according to claim 4, wherein The driving assembly further comprises a first pad sleeved on the rod, one end of the first pad abuts against the first pressing plate, and the other end of the first pad is capable of contacting the wrench, and the wrench is capable of driving the first pad to move to drive the first pressing plate to move; And / or, the nut is provided with a radially extending protrusion, one end of the protrusion abuts against the second pressing plate, and the wrench is capable of driving the protrusion to move to drive the second pressing plate to move; And / or, the first movable element and the second movable element are both balls; And / or, the first pressing plate comprises two opposite parallel end faces and a side face connecting the two end faces, the side face comprises two first planes and two first arc faces respectively arranged symmetrically, the first arc groove is arranged on the side wall where the first arc face is located, and the first arc groove penetrates through the upper and lower end faces of the first pressing plate; And / or, the second pressing plate comprises two opposite parallel end faces and a side face connecting the two end faces, the side face comprises two second planes and two second arc faces respectively arranged symmetrically, the second arc groove is arranged on the side wall where the second arc face is located, and the second arc groove penetrates through the upper and lower end faces of the second pressing plate.

6. The universal locking and connecting device according to claim 5, wherein The second main part further comprises a second limiting plate connected with the second sleeve, the second limiting plate is located at one end of the second through hole away from the first main part, the protrusion of the nut penetrates through the second limiting plate, and the second limiting plate abuts against one end of the protrusion away from the second pressing plate; And / or, the first pad is T-shaped and comprises a first pad plate and a first pad body connected vertically, the first pad plate abuts against the first pressing plate, the first pad body abuts against the wrench, the side face of the first pad plate comprises two third planes and two third arc faces respectively arranged symmetrically, and the third planes of the first pad plate are parallel to the first planes of the first pressing plate; the first main part further comprises a first limiting plate connected with the first sleeve, the first limiting plate is located at one end of the first through hole away from the second main part, the first pad body penetrates through the first limiting plate, and the first limiting plate abuts against one end of the first pad plate away from the first pressing plate; And / or, the protrusion of the nut comprises two fourth planes and two fourth arc faces respectively arranged symmetrically, and the fourth planes of the protrusion are parallel to the second planes of the second pressing plate.

7. The universal locking and connecting device according to claim 6, wherein The first limiting plate comprises a first annular plate and a first leg extending from the lower surface of the first annular plate, the first leg is provided with a first threaded hole, the first sleeve is provided with a second threaded hole, a bolt penetrates through the first threaded hole and the second threaded hole to fixedly connect the first limiting plate and the first sleeve, and the first pressing plate, the first movable element and the first pad plate are limited in the first through hole. And / or, the second limiting plate comprises a second annular plate and a second leg extending from the lower surface of the second annular plate, a third threaded hole is arranged in the second leg, the second sleeve is provided with a fourth threaded hole, and the second limiting plate and the second sleeve are fixedly connected by a bolt penetrating through the third threaded hole and the fourth threaded hole, so as to limit the second pressing plate, the second movable piece and the protrusion in the second through hole; And / or, the first sleeve is a columnar body, the first through hole is a stepped hole comprising a first light hole and a second light hole, the diameter of the first light hole is larger than that of the second light hole, the first limiting plate, the first pad plate, the first pressing plate and the first movable piece are arranged in the first light hole, and the first movable piece abuts against the step portion between the first light hole and the second light hole. And / or, the second sleeve is a columnar body, the second through hole is a stepped hole comprising a third light hole and a fourth light hole, the diameter of the third light hole is larger than that of the fourth light hole, the second limiting plate, the protrusion, the second pressing plate and the second movable piece are arranged in the third light hole, and the second movable piece abuts against the step portion between the third light hole and the fourth light hole.

8. The universal locking connection device according to claim 2, wherein the universal locking connection device further comprises a first outer tube, one end of the first outer tube is connected with the first sleeve, the other end of the first outer tube is connected with the first universal rotating part, and the first connecting rod is movably arranged in the first outer tube. And / or, the universal locking connection device further comprises a second outer tube, one end of the second outer tube is connected with the second sleeve, the other end of the second outer tube is connected with the second universal rotating part, and the second connecting rod is movably arranged in the second outer tube.

9. The universal locking connection device according to claim 8, wherein the first universal rotating part comprises a first locking main body, the first locking main body is connected with the first outer tube, a first installation cavity penetrating through the first locking main body is arranged, one end of the first connecting rod is movably arranged in the first installation cavity, a first ball head swing rod is movably arranged at the other end of the first installation cavity, and the first connecting rod can abut against the first ball head swing rod. And / or, the second universal rotating part comprises a second locking main body, the second locking main body is connected with the second outer tube, a second installation cavity penetrating through the second locking main body is arranged, one end of the second connecting rod is movably arranged in the second installation cavity, a second ball head swing rod is movably arranged at the other end of the second installation cavity, and the second connecting rod can abut against the second ball head swing rod.

10. The universal locking connection device according to claim 9, wherein ​ ​ The first locking body comprises a first locking sleeve and a second locking sleeve connected by threads, the first outer tube is connected with the first locking sleeve, the first locking sleeve is provided with a third through hole penetrating through two end faces thereof, the second locking sleeve is provided with a first cavity penetrating through two end faces thereof, the third through hole and the first cavity are communicated to form the first mounting cavity, and the first connecting rod can penetrate through the third through hole and extend into the first cavity to abut against the first ball head swing rod. And / or, the second locking body comprises a third locking sleeve and a fourth locking sleeve connected by threads, the second outer tube is connected with the third locking sleeve, the third locking sleeve is provided with a fourth through hole penetrating through two end faces thereof, the fourth locking sleeve is provided with a second cavity penetrating through two end faces thereof, the fourth through hole and the second cavity are communicated to form the second mounting cavity, and the second connecting rod can penetrate through the fourth through hole and extend into the second cavity to abut against the second ball head swing rod.

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