Rapid tensioning mechanism for general binding rigging

Abstract

The invention relates to the technical field of rigging tensioning, in particular to a quick tensioning mechanism for a general binding rigging, which comprises a threaded sleeve, a middle sleeve, a chain shrinking rod and an outer sleeve. And a first internal thread is arranged in the threaded sleeve. One end of the middle sleeve is movably inserted into the threaded sleeve, first external threads are arranged on the outer side of the middle sleeve, the other end of the middle sleeve is located on the outer side of the threaded sleeve and provided with a rotating operation device, the first external threads are matched with the first internal threads, second internal threads are arranged on the inner side of the middle sleeve, and the second internal threads and the first internal threads are arranged in opposite directions. One end of the chain shrinking rod is movably inserted into the middle sleeve, a second external thread is arranged on the outer side of the chain shrinking rod, the other end of the chain shrinking rod is located on the outer side of the middle sleeve and close to the rotating operation device, the second external thread is matched with the second internal thread, and a first connecting piece connected with the rigging is arranged at the end, located on the outer side of the middle sleeve, of the chain shrinking rod. One end of the outer sleeve sleeves the outer side of the threaded sleeve and is slidably and fixedly connected with the threaded sleeve, and the other end is provided with a second connecting piece connected with the rigging.

Description

Technical Field

[0001] The present invention relates to the technical field of rigging tensioning, and more particularly to a quick tensioning mechanism for universal lashing rigging. Background Art

[0002] Lashing rigging plays a vital role in the bundling and transportation of various materials. As an advanced bundling tool, it effectively replaces traditional materials such as wire, steel rope, and wooden wheel chocks. Compared to traditional materials, lashing rigging offers significant advantages. It is extremely convenient and quick to use, eliminating the need for workers to spend extensive time and effort on complex preparations. Furthermore, it can be reused multiple times, which not only reduces costs but also minimizes resource waste. The use of lashing rigging makes equipment bundling more efficient and stable during transportation, greatly improving the reliability and portability of the entire transportation process and bringing significant convenience to the logistics and transportation industry.

[0003] However, in current practice, the tensioners used in existing lashing rigging use ratchet fasteners. This type of tensioner has certain limitations in actual operation. Specifically, to achieve its pre-tightening function, it is necessary to use a special wrench to twist its end. This operation requires workers to possess certain professional skills and experience, as they need to accurately grasp the force and angle; otherwise, it is difficult to achieve the ideal pre-tightening effect. In addition, the entire operation process is relatively complex, involving multiple steps and links. From preparing the tools to completing the twisting action, each link needs to be handled with caution, and the slightest carelessness may affect the final binding effect. This means that in actual work, when using existing lashing rigging for equipment transportation and bundling, the efficiency is restricted to a certain extent, and the labor intensity of the workers is increased. Summary of the Invention

[0004] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a quick tensioning mechanism for universal lashing slings that does not require additional functional accessories, is simple to operate, and can quickly pre-tighten and relax the binding chain.

[0005] A rapid tensioning mechanism for universal lashing rigging comprises a threaded sleeve, an intermediate sleeve, a chain-retracting rod, and an outer sleeve. A first internal thread is provided within the threaded sleeve. One end of the intermediate sleeve is movably inserted within the threaded sleeve and is provided with a first external thread on the outer side. The other end is located outside the threaded sleeve and is provided with a rotary operating device. The first external thread mates with the first internal thread. A second internal thread is provided on the inner side of the intermediate sleeve, and the second internal thread is arranged in the opposite direction of the first internal thread. One end of the chain-retracting rod is movably inserted within the intermediate sleeve and is provided with a second external thread on the outer side. The other end is located outside the intermediate sleeve and is close to the rotary operating device. The second external thread mates with the second internal thread. The end of the chain-retracting rod located outside the intermediate sleeve is provided with a first connector for connection to the rigging. One end of the outer sleeve is sleeved onto the outer side of the threaded sleeve and is slidably and fixedly connected to the threaded sleeve. The other end is provided with a second connector for connection to the rigging.

[0006] Furthermore, a blocking block is fixed on the outside of the threaded sleeve, and a slot is provided on the outer sleeve. The blocking block is movably arranged in the slot. Connecting ear plates are fixed on the outside of the outer sleeve and on both sides of the slot. A blocking pin is rotatably fixed on the connecting ear plate, and the blocking pin can selectively block or disengage from the blocking block.

[0007] Furthermore, the middle portion of the blocking pin is a semicircular cylindrical structure, and the blocking block is provided with a blocking groove on one side close to the rotary operating device and away from the end of the threaded sleeve, and the blocking groove is adapted to the blocking pin.

[0008] Furthermore, a limiting groove is provided on the outer side of the threaded sleeve, the limiting groove is in the shape of an elongated strip and is arranged axially along the threaded sleeve, and a first limiting pin is fixed to the outer sleeve, the end of the first limiting pin extends into the outer sleeve and is slidably embedded in the limiting groove.

[0009] Furthermore, a U-shaped frame is provided on the outside of the two connecting ear plates, and the two ends of the blocking pin are respectively connected to the two ends of the U-shaped frame. A handle is fixed on the outside of the U-shaped frame, and a handle pin is retractably provided on the end of the handle away from the U-shaped frame, and a locking groove is provided on the end of the handle pin away from the handle.

[0010] A bracket is fixed on the outer side of the outer sleeve and at one end away from the connecting ear plate, and a locking tooth is fixed on one end of the bracket close to the connecting ear plate, and the locking tooth is adapted to the locking groove.

[0011] Furthermore, the handle is provided with an inner cavity, the inner cavity is connected to the outside at one end away from the U-shaped frame, a spring is provided in the inner cavity, and the end of the handle pin away from the locking groove is inserted into the inner cavity and connected to the spring.

[0012] Furthermore, the handle pin is provided with a limiting hole along the axial direction, the limiting hole is in an elongated strip shape, and the handle is fixed with a second limiting nail, the end of the second limiting nail extends into the inner cavity and is slidably inserted into the limiting hole.

[0013] Furthermore, the intermediate sleeve includes a first connecting portion and a limiting portion, the outer diameter of the first connecting portion is larger than the outer diameter of the limiting portion, and the first external thread is arranged on the outside of the first connecting portion, the rotary operating device is arranged at one end of the limiting portion away from the first connecting portion, and a plurality of locking grooves are provided on the outside of the limiting portion, the locking grooves are arranged axially along the limiting portion and distributed in an annular array, and a locking plate is provided at one end of the threaded sleeve close to the rotary operating device, and the locking plate is adapted to the locking groove and is rotatably connected to the threaded sleeve.

[0014] Furthermore, the rotating operating device includes a mounting seat, a connecting shaft and a crank, the mounting seat is fixed to the outside of the limiting portion, the connecting shaft is rotatably set on the mounting seat and is perpendicular to the central axis of the intermediate sleeve, and the crank is perpendicular to the connecting shaft and one end is fixedly connected to the connecting shaft.

[0015] Furthermore, the shortening chain rod includes a second connecting part and a rod body, the outer diameter of the second connecting part is larger than the outer diameter of the rod body, and the second external thread is arranged on the outside of the second connecting part, and the first connecting member is fixed to one end of the rod body away from the second connecting part.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The rapid tensioning mechanism for universal lashing rigging of the present invention is connected to the lashing rigging via a first connecting member and a second connecting member. Since the threaded sleeve is threadedly connected to the intermediate sleeve, which is in turn threadedly connected to the chain-reducing rod, rotating the rotary operating device allows the intermediate sleeve to be inserted into the threaded sleeve and the chain-reducing rod to be inserted into the intermediate sleeve simultaneously, shortening the overall length of the rapid tensioning mechanism, thereby achieving rapid pre-tightening of the lashing chain without the need for additional functional accessories. Furthermore, by providing an outer sleeve on the outside of the threaded sleeve, which is slidably fixedly connected to the threaded sleeve, a rapid release function can be achieved by partially removing the threaded sleeve from the outer sleeve, significantly reducing lashing time and improving transportation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the rapid tensioning mechanism for universal lashing rigging in the present invention.

[0018] Figure 2It is a schematic diagram of the overall structure of the quick tensioning mechanism for universal lashing rigging in the present invention when it is at its maximum extension.

[0019] Figure 3 It is a schematic diagram of the overall structure of another state of the rapid tensioning mechanism for universal lashing rigging in the present invention.

[0020] Figure 4 It is a partial structural schematic diagram of the rapid tensioning mechanism for universal lashing rigging in the present invention.

[0021] Figure 5 It is a cross-sectional view of the quick tensioning mechanism for universal lashing rigging in the present invention.

[0022] Figure 6 It is a structural schematic diagram of the threaded sleeve in the present invention.

[0023] Figure 7 It is a structural schematic diagram of the intermediate sleeve and the rotary operating device in the present invention.

[0024] Figure 8 It is a structural schematic diagram of the shortening link and the first connecting member in the present invention.

[0025] In the figure: 1. threaded sleeve; 101. first internal thread; 102. limiting groove; 2. intermediate sleeve; 201. first external thread; 202. second internal thread; 203. first connecting part; 204. limiting part; 205. locking groove; 3. shortening chain rod; 301. second external thread; 302. second connecting part; 303. rod body; 4. first connecting member; 5. outer sleeve; 501. notch; 6. second connecting member; 7. blocking block; 8. connecting ear plate; 9. blocking pin; 10. blocking groove; 11. first limiting nail; 12. U-shaped frame; 13. handle; 14. handle pin; 15. locking groove; 16. bracket; 17. locking tooth; 18. inner cavity; 19. spring; 20. limiting hole; 21. second limiting nail; 22. locking plate; 23. mounting seat; 24. connecting shaft; 25. crank. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example

[0028] like Figures 1-8As shown, the rapid tensioning mechanism for universal lashing rigging in this embodiment includes a threaded sleeve 1, an intermediate sleeve 2, a shortening rod 3, and an outer sleeve 5. A first internal thread 101 is provided in the threaded sleeve 1. One end of the intermediate sleeve 2 is movably inserted into the threaded sleeve 1 and a first external thread 201 is provided on the outer side. The other end is located on the outer side of the threaded sleeve 1 and is provided with a rotary operating device. The first external thread 201 is adapted to the first internal thread 101. A second internal thread 202 is provided on the inner side of the intermediate sleeve 2. The first internal thread 101 and the second internal thread 202 are arranged in opposite directions. One end of the shortening rod 3 is movably inserted into the intermediate sleeve 2 and a second external thread 301 is provided on the outer side. The other end is located on the outer side of the intermediate sleeve 2 and is close to the rotary operating device. The second external thread 301 is adapted to the second internal thread 202. The end of the shortening rod 3 located on the outer side of the intermediate sleeve 2 is provided with a first connector 4 connected to the rigging. One end of the outer sleeve 5 is sleeved on the outside of the threaded sleeve 1 and is slidably and fixedly connected to the threaded sleeve 1, and the other end is provided with a second connecting piece 6 connected to the rigging.

[0029] The threaded sleeve 1 is in the shape of a circular tube, and a first internal thread 101 is provided throughout the threaded sleeve 1. The intermediate sleeve 2 includes an integrally arranged first connecting portion 203 and a limiting portion 204. The first connecting portion 203 and the limiting portion 204 are both in the shape of circular tubes and are coaxially arranged. The outer diameter of the first connecting portion 203 is larger than the outer diameter of the limiting portion 204, and the inner diameter of the first connecting portion 203 is the same as the inner diameter of the limiting portion 204. The first external thread 201 is provided on the outside of the first connecting portion 203, and the second internal thread 202 is provided throughout the first connecting portion 203 and the limiting portion 204. The shortening link 3 includes an integrally arranged second connecting portion 302 and a rod body 303. The second connecting portion 302 and the rod body 303 are both in the shape of circular rods and are coaxially arranged. The second external thread 301 is provided on the outside of the second connecting portion 302.

[0030] In this embodiment, the rotary operating device is disposed at the end of the position-limiting portion 204 away from the first connecting portion 203. Specifically, the rotary operating device includes a mounting seat 23, a connecting shaft 24, and a crank handle 25. The mounting seat 23 is fixed to the outside of the position-limiting portion 204. The connecting shaft 24 is rotatably mounted on the mounting seat 23 and is perpendicular to the central axis of the intermediate sleeve 2. The crank handle 25 is perpendicular to the central axis of the connecting shaft 24 and has one end fixedly connected to the connecting shaft 24.

[0031] When in use, the crank 25 is turned to unfold the crank 25 so that the crank 25 and the middle sleeve 2 are in a vertical state, and then the crank 25 is held and rotated, so that the crank 25 drives the middle sleeve 2 to rotate, so that the middle sleeve 2 extends into the spiral sleeve and the chain retracting rod 3 extends into the middle sleeve 2, thereby shortening the overall length of the quick tensioning mechanism; or the middle sleeve 2 extends out of the spiral sleeve and the chain retracting rod 3 extends out of the middle sleeve 2, thereby extending the overall length of the quick tensioning mechanism.

[0032] In this embodiment, preferably, a plurality of locking grooves 205 are defined on the outer side of the limiting portion 204 of the intermediate sleeve 2. These locking grooves 205 are elongated and arranged axially along the limiting portion 204, i.e., their lengths coincide with the length of the intermediate sleeve 2. The plurality of locking grooves 205 are arranged in a circular array. A locking plate 22 is provided at the end of the threaded sleeve 1 proximal to the rotary operating mechanism. One end of the locking plate 22 is rotatably connected to the end face of the threaded sleeve 1, and the other end is provided with locking teeth. Rotating the locking plate 22 causes the locking teeth to engage or disengage with the locking grooves 205, thereby locking or releasing the intermediate sleeve 2.

[0033] By providing the locking groove 205 and the locking plate 22, when the locking tooth is embedded in the locking groove 205, the locking plate 22 locks the intermediate sleeve 2, so that the intermediate sleeve 2 cannot rotate relative to the threaded sleeve 1, thereby fixing the overall length of the quick tensioning mechanism; when the locking plate 22 is rotated to disengage the locking tooth from the locking groove 205, the locking plate 22 unlocks the intermediate sleeve 2, so that the intermediate sleeve 2 can rotate under the drive of the crank 25, thereby adjusting the overall length of the quick tensioning mechanism.

[0034] In this embodiment, a blocking block 7 is fixed to the outside of the threaded sleeve 1. The outer sleeve 5 defines a notch 501, within which the blocking block 7 is movably mounted. Connecting lugs 8 are fixed to the outside of the outer sleeve 5, on either side of the notch 501 and the blocking block 7. A blocking pin 9 is rotatably fixed to the connecting lug 8, which selectively blocks or disengages the blocking block 7.

[0035] Specifically, the middle portion of the blocking pin 9 is a semicircular cylindrical structure. The blocking block 7 is located on the side closest to the rotary operating device and at the end away from the threaded sleeve 1, and is provided with a blocking groove 10. The blocking groove 10 is a quarter-cylindrical groove, and the semicircular cylinder in the middle portion of the blocking pin 9 can be selectively inserted into the blocking groove 10. When the semicircular cylinder in the blocking pin 9 is rotated to a vertical position and close to the second connecting member 6, the lower half of the semicircular cylinder is inserted into the blocking groove 10. At this time, the end of the blocking block 7 away from the blocking pin 9 abuts against the end of the notch 501, thereby securing the blocking block 7 and fixing the threaded sleeve 1 to the outer sleeve 5. When the semicircular cylinder in the blocking pin 9 is rotated to a horizontal position and facing upward, the semicircular cylinder of the blocking pin 9 is located above the blocking block 7 and disengaged from the blocking block 7. At this time, the threaded sleeve 1 is unlocked, stretching the outer sleeve 5 and the threaded sleeve 1 in opposite directions. The threaded sleeve 1 partially extends out of the outer sleeve 5, causing the length of the quick tensioning mechanism to increase rapidly, thereby quickly releasing the preload force.

[0036] In this embodiment, a limiting groove 102 is defined on the outer side of the threaded sleeve 1. The limiting groove 102 is elongated and arranged along the axial direction of the threaded sleeve 1, i.e., the length direction of the limiting groove 102 is consistent with the length direction of the threaded sleeve 1. A first limiting pin 11 is fixed to the outer sleeve 5. The end of the first limiting pin 11 extends into the outer sleeve 5 and is slidably embedded in the limiting groove 102, thereby limiting the movement of the threaded sleeve 1 relative to the outer sleeve 5 and preventing the threaded sleeve 1 from falling out.

[0037] In this embodiment, a U-shaped frame 12 is provided on the outside of the two connecting lugs 8. The ends of the blocking pin 9 respectively penetrate the two connecting lugs 8 and are fixedly connected to the ends of the U-shaped frame 12. A handle 13 is fixed to the outside of the middle of the U-shaped frame 12. Specifically, the handle 13 is a cylindrical structure, and a handle pin 14 is retractably provided on the end of the handle 13 away from the U-shaped frame 12. The end of the handle pin 14 away from the handle 13 defines a locking slot 15. A bracket 16 is fixed to the end of the outer sleeve 5 away from the connecting lugs 8. The end of the bracket 16 near the connecting lugs 8 is fixed to a locking tooth 17, which is compatible with the locking slot 15.

[0038] Specifically, handle 13 has an inner cavity 18, the end of inner cavity 18 away from U-shaped frame 12 being in communication with the outside, and a spring 19 being disposed within inner cavity 18. Handle pin 14 includes a main body and a tip. The main body and tip are integrally formed, and the outer diameter of the tip is greater than the diameter of inner cavity 18. A locking groove 15 is disposed at the end of the tip away from the main body of handle pin 14. The end of handle pin 14 away from the tip is inserted into inner cavity 18 of handle 13. The ends of spring 19 are fixedly connected to the main body of handle pin 14 and the interior of inner cavity 18, respectively.

[0039] By providing a spring 19, the handle pin 14 can extend into the inner cavity 18 of the handle 13 when squeezed by an external force, and the spring 19 is compressed. When the external force disappears, the handle pin 14 returns to its original position under the action of the spring 19. When it is necessary to lock the outer sleeve 5 and the threaded sleeve 1, the outer sleeve 5 and the threaded sleeve 1 are pushed toward each other until the blocking block 7 abuts against the end of the notch 501. The handle 13 is rotated so that the semicircular cylinder in the blocking pin 9 is embedded in the blocking groove 10. At the same time, the handle pin 14 is squeezed so that the locking groove 15 corresponds to the locking tooth 17. Then, the handle pin 14 is released. Under the action of the spring 19, the handle pin 14 moves toward the locking tooth 17, causing the locking tooth 17 to engage in the locking groove 15, thereby fixing the position of the handle 13 and completing the locking between the outer sleeve 5 and the threaded sleeve 1.

[0040] Preferably, the handle pin 14 has a limit hole 20 defined axially. The limit hole 20 is elongated, and its length coincides with the length of the handle pin 14. A second limit pin 21 is fixed to the handle 13. The end of the second limit pin 21 extends into the inner cavity 18 and is slidably inserted into the limit hole 20. This limits the travel of the handle pin 14 relative to the handle 13, preventing it from falling out.

[0041] The first connecting member 4 and the second connecting member 6 can be selected from connecting members commonly used in lashing rigging, such as connecting pins and shackles.

[0042] The working principle of the quick tensioning mechanism for universal lashing rigging in this embodiment is as follows: First, rotate the locking plate 22 to disengage the locking teeth from the locking groove 205, and the locking plate 22 unlocks the intermediate sleeve 2. Turn the crank 25 to unfold it so that the crank 25 and the intermediate sleeve 2 are perpendicular. Hold the crank 25 and rotate it in the loosening direction. At the same time, the intermediate sleeve 2 extends out of the spiral sleeve and the chain rod 3 extends out of the intermediate sleeve 2, so that the overall length of the quick tensioning mechanism is extended until the quick tensioning mechanism reaches the maximum extension, that is, the first external thread 201 on the outside of the intermediate sleeve 2 is visibly screwed out.

[0043] Then, the first connecting member 4 and the second connecting member 6 are respectively connected to the lashing slings, and the hand-held crank 25 is rotated in the tightening direction. The intermediate sleeve 2 is extended into the spiral sleeve and the chain rod 3 is extended into the intermediate sleeve 2, so that the overall length of the quick tensioning mechanism is shortened until the quick tensioning mechanism is shortened to the minimum length that can be achieved to achieve pre-tightening, and the locking plate 22 is rotated so that the locking teeth are embedded in the locking groove 205, and the locking plate 22 locks the intermediate sleeve 2.

[0044] After the equipment arrives at the predetermined location, the quick-tightening mechanism's quick-pull function is used to quickly release the preload. Specifically, squeeze the handle pin 14 to disengage the locking tooth 17 from the locking groove 15. Then, rotate the handle 13 to rotate the blocking pin 9, causing the semicircular cylinder in the middle of the blocking pin 9 to disengage the blocking block 7. This stretches the outer sleeve 5 and the threaded sleeve 1 in opposite directions, lengthening the quick-tightening mechanism and quickly releasing the preload. Disconnect the first and second connectors 4 and 6 from the lashing rigging.

[0045] Finally, the outer sleeve 5 and the threaded sleeve 1 are pushed toward each other until the blocking block 7 abuts the end of the notch 501. The handle 13 is rotated, causing the semicircular cylinder in the blocking pin 9 to engage with the blocking groove 10. At the same time, the handle pin 14 is squeezed, causing the locking groove 15 to align with the locking tooth 17. The handle pin 14 is released. Under the action of the spring 19, the handle pin 14 moves toward the locking tooth 17, causing the locking tooth 17 to engage with the locking groove 15, thereby fixing the position of the handle 13 and completing the locking between the outer sleeve 5 and the threaded sleeve 1. The locking plate 22 is rotated to disengage the locking tooth from the locking groove 205. The locking plate 22 releases the lock on the intermediate sleeve 2. The hand crank 25 is rotated in the tightening direction until the quick tensioning mechanism is shortened to the minimum length, thereby completing the withdrawal of the quick tensioning mechanism. Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the above embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A quick tensioning mechanism for universal lashing rigging, characterized in that: include: A threaded sleeve (1), wherein a first internal thread (101) is provided in the threaded sleeve (1); An intermediate sleeve (2), one end of the intermediate sleeve (2) is inserted into the threaded sleeve (1) and is provided with a first external thread (201) on the outside, the first external thread (201) being compatible with the first internal thread (101), the other end of the intermediate sleeve (2) is located outside the threaded sleeve (1) and is provided with a rotating operating device, the inner side of the intermediate sleeve (2) is provided with a second internal thread (202), the second internal thread (202) being provided in the opposite direction to the first internal thread (101); A shortening rod (3), one end of the shortening rod (3) is movably inserted into the middle sleeve (2) and is provided with a second external thread (301) on the outside, the second external thread (301) is adapted to the second internal thread (202), and the other end is located outside the middle sleeve (2), and the end of the shortening rod (3) located outside the middle sleeve (2) is provided with a first connecting piece (4) connected to the rigging; and An outer sleeve (5), one end of which is sleeved on the outside of the threaded sleeve (1) and is slidably or fixedly connected to the threaded sleeve (1), and the other end of which is provided with a second connecting piece (6) connected to the rigging.

2. The rapid tensioning mechanism for universal lashing rigging according to claim 1, characterized in that: A blocking block (7) is fixed on the outside of the threaded sleeve (1), a notch (501) is provided on the outer sleeve (5), and the blocking block (7) is movably arranged in the notch (501). Connecting ear plates (8) are fixed on the outside of the outer sleeve (5) and located on both sides of the notch (501), and a blocking pin (9) is rotatably fixed on the connecting ear plate (8), and the blocking pin (9) can selectively block or disengage from the blocking block (7).

3. The rapid tensioning mechanism for universal lashing rigging according to claim 2, characterized in that: The middle portion of the blocking pin (9) is a semicircular cylindrical structure, and the blocking block (7) is provided with a blocking groove (10) on one side close to the rotary operating device and at one end away from the threaded sleeve (1), and the blocking groove (10) is adapted to the blocking pin (9).

4. The rapid tensioning mechanism for universal lashing rigging according to claim 3, characterized in that: A limiting groove (102) is provided on the outer side of the threaded sleeve (1), the limiting groove (102) is in an elongated strip shape and is arranged axially along the threaded sleeve (1), and a first limiting pin (11) is fixed to the outer sleeve (5), the end of the first limiting pin (11) extends into the outer sleeve (5) and is slidably embedded in the limiting groove (102).

5. The rapid tensioning mechanism for universal lashing rigging according to claim 4, characterized in that: A U-shaped frame (12) is provided on the outside of the two connecting ear plates (8), and the two ends of the blocking pin (9) are respectively connected to the two ends of the U-shaped frame (12). A handle (13) is fixed on the outside of the U-shaped frame (12), and a handle pin (14) is telescopically provided on one end of the handle (13) away from the U-shaped frame (12), and a locking groove (15) is provided on the one end of the handle pin (14) away from the handle (13); A bracket (16) is fixed to the outer side of the outer sleeve (5) and at one end away from the connecting ear plate (8), and a locking tooth (17) is fixed to one end of the bracket (16) close to the connecting ear plate (8), and the locking tooth (17) is adapted to the locking groove (15).

6. The rapid tensioning mechanism for universal lashing rigging according to claim 5, characterized in that: The handle (13) is provided with an inner cavity (18), and one end of the inner cavity (18) away from the U-shaped frame (12) is communicated with the outside. A spring (19) is provided in the inner cavity (18), and one end of the handle pin (14) away from the locking groove (15) is inserted into the inner cavity (18) and connected to the spring (19).

7. The rapid tensioning mechanism for universal lashing rigging according to claim 6, characterized in that: The handle pin (14) is provided with a limiting hole (20) along the axial direction, and the limiting hole (20) is in the shape of an elongated strip. The handle (13) is fixed with a second limiting nail (21), and the end of the second limiting nail (21) extends into the inner cavity (18) and is slidably inserted into the limiting hole (20).

8. The rapid tensioning mechanism for universal lashing rigging according to claim 7, characterized in that: The intermediate sleeve (2) comprises a first connecting portion (203) and a limiting portion (204), the outer diameter of the first connecting portion (203) is larger than the outer diameter of the limiting portion (204), and the first external thread (201) is arranged outside the first connecting portion (203), the rotary operating device is arranged at one end of the limiting portion (204) away from the first connecting portion (203), a plurality of locking grooves (205) are provided on the outside of the limiting portion (204), the locking grooves (205) are arranged axially along the limiting portion (204) and distributed in the form of an annular array, and a locking plate (22) is provided at one end of the threaded sleeve (1) close to the rotary operating device, the locking plate (22) is adapted to the locking groove (205) and is rotatably connected to the threaded sleeve (1).

9. The rapid tensioning mechanism for universal lashing rigging according to claim 8, characterized in that: The rotary operating device comprises a mounting seat (23), a connecting shaft (24) and a crank (25), wherein the mounting seat (23) is fixed to the outside of the limiting portion (204), the connecting shaft (24) is rotatably arranged on the mounting seat (23) and is perpendicular to the central axis of the intermediate sleeve (2), and the crank (25) is perpendicular to the connecting shaft (24) and one end of the crank is fixedly connected to the connecting shaft (24).

10. The rapid tensioning mechanism for universal lashing rigging according to claim 9, characterized in that: The shortening chain rod (3) comprises a second connecting portion (302) and a rod body (303), the outer diameter of the second connecting portion (302) is larger than the outer diameter of the rod body (303), and the second external thread (301) is arranged outside the second connecting portion (302), and the first connecting member (4) is fixed to an end of the rod body (303) away from the second connecting portion (302).

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