Fast and efficient tensioner mechanism and application method thereof

Abstract

The invention relates to the technical field of cargo fastening devices, and discloses a rapid and efficient tensioner mechanism and an application method thereof.The rapid and efficient tensioner mechanism comprises a sleeve body, one end of the sleeve body is provided with a movable hole end, and the other end of the sleeve body is provided with an inner threaded hole end which is coaxial with the movable hole end and communicated with the movable hole end; a pressing rod assembly is installed at the top of the sleeve body and comprises a U-shaped frame rotationally installed on one side of the sleeve body and a vertical frame fixed to the other side of the sleeve body. According to the rapid and efficient tensioner mechanism, the pressing rod assembly and the rapid loosening assembly are in the linkage state, the pressing rod assembly is operated to lock and disengage the rapid loosening assembly, the tightening speed of the rapid and efficient tensioner mechanism is far higher than that of manual thread screwing, and the contraction amount of a tensioner is reduced, so that rapid folding is achieved, the pressing rod assembly is opened during disassembly, and rapid unfolding of a chain is achieved; and meanwhile, the modular design is adopted, the structure is compact, the weight is light, and mounting and dismounting are convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of cargo securing devices, and in particular to a fast and efficient tensioner mechanism and an application method thereof. Background Art

[0002] In the modern logistics and transportation system, water, rail and road transportation occupy a vital position. Among these modes of transportation, ensuring the stability and safety of goods during transportation is the primary task. The cargo securing link is indispensable. Chains are commonly used cargo securing tools, and their tightening and disassembly rely on tensioners.

[0003] Most of the chain tighteners widely used in the market rely on manual operation to complete the tightening and disassembly work by rotating the screw in circles. This operation method has many disadvantages:

[0004] On the one hand, the operation efficiency is extremely low. In the scenario of frequent cargo loading and unloading, it will seriously delay the transportation time and increase the logistics cost. Take a large cargo terminal as an example. Every time a large amount of cargo is loaded and unloaded, the slow operation of the traditional tensioner will lead to a significant reduction in loading and unloading efficiency, affecting the turnover speed of ships or vehicles.

[0005] On the other hand, the workers have to work very hard and repeatedly rotate the screw for a long time, which can easily cause physical fatigue and even occupational injuries.

[0006] At the same time, in some special scenarios, such as wartime material transportation and emergency rescue material allocation, every second counts, and the problem of low efficiency of traditional tensioners will be infinitely magnified. In wartime, if the materials cannot be fixed and transported in time due to slow operation of the tensioner, it may delay the war and cause immeasurable losses; in emergency rescue, if the rescue materials cannot be quickly fastened and transported, it will directly affect the timeliness of the rescue operation and threaten the life and property of the affected people. Summary of the invention

[0007] In view of the fact that the above-mentioned existing chain tensioners have serious defects in efficiency, labor intensity, applicability in special scenarios and structural reliability, the present invention is proposed.

[0008] Therefore, the purpose of the present invention is to provide a fast and efficient tensioner mechanism and an application method thereof, and its purpose is: the market urgently needs a new type of efficient, convenient and reliable tensioner mechanism to solve these problems.

[0009] In order to solve the above technical problems, the present invention provides the following technical solutions: a fast and efficient tensioner mechanism, comprising a sleeve body, one end of which is provided with a movable hole end, and the other end of which is provided with an internal threaded hole end which is coaxial with and communicates with the movable hole end;

[0010] A pressure rod assembly is installed at the top of the sleeve body. The pressure rod assembly includes a U-shaped frame rotatably installed on one side of the sleeve body and a vertical frame fixed on the other side of the sleeve body. A pressure rod body is fixed at one end of the U-shaped frame close to the vertical frame, and the pressure rod body is clamped and connected to the vertical frame;

[0011] A quick-release assembly is arranged inside the movable hole end of the sleeve body. Connecting ends of the quick-release assembly are respectively installed with an R pin and a connecting ring. Small chains are fixed on both the R pin and the connecting ring. One ends of the two small chains are fixedly connected with a snap ring;

[0012] A binding member is detachably installed in the installation cavity of the quick-release assembly. The binding member is one of a chain, an elephant foot or a hook;

[0013] The sleeve body is threadedly installed with a handle assembly through an internal thread hole end, and the handle assembly moves horizontally along the direction of the internal thread hole end. A chain clip screw rod assembly is installed in the threaded cavity of the handle assembly, and the chain clip screw rod assembly moves horizontally inside the handle assembly. A chain body is detachably installed in the installation cavity at one end of the chain clip screw rod assembly away from the sleeve body.

[0014] As an improved technical solution, the quick-release assembly includes a connecting rod located inside the movable hole end. A connecting seat is arranged at one end of the connecting rod away from the sleeve body, and the snap ring is welded on the connecting seat. A U-shaped cavity is opened at one end of the connecting seat away from the connecting rod. A pin hole one communicated with the U-shaped cavity is opened on the front surface of the connecting seat. A pin shaft is arranged on the connecting seat through the pin hole one on it. An annular groove is opened at one end of the pin shaft away from the connecting ring, and a pin hole two for clamping the R pin is opened at the position of the annular groove on the pin shaft.

[0015] As an improved technical solution, an internal thread sleeve block is arranged at the bottom of the sleeve body close to the quick-release assembly. An anti-detachment groove is opened at the bottom of the connecting rod. A limit screw is threadedly installed on the internal thread sleeve block, and the tail end of the limit screw is located inside the anti-detachment groove.

[0016] As an improved technical solution, a convex block is arranged at a position above the end of the sleeve body close to the internal thread sleeve block. A plug pin is rotatably installed on the convex block through a pin hole two opened on it. Pin holes three are opened at both ends of the plug pin. Pin holes four are opened at both ends of the U-shaped frame. An elastic pin two is arranged between the pin hole three and the pin hole four on the same side. The plug pin and the U-shaped frame are fixed by inserting the elastic pin two between the pin hole three and the pin hole four on the same side. A square groove two is opened at one end of the connecting rod away from the connecting seat. A square groove one matched with the square groove two is opened at the middle part of the plug pin.

[0017] As an improved technical solution, a spring hole is provided at one end of the pressure rod body close to the vertical frame. A T-shaped column is provided at one end of the spring hole close to the vertical frame. A first compression spring is provided at the other end of the spring hole away from the vertical frame. A clamping groove is provided at one end of the T-shaped column away from the first compression spring, and a convex clamping end engaged with the clamping groove is provided at the top of the vertical frame. A pin channel is provided at the vertical rod end of the T-shaped column. A third pin shaft hole communicating with the inside of the spring hole is provided at one end of the pressure rod body close to the clamping groove, and a first elastic pin is provided inside the third pin shaft hole.

[0018] As an improved technical solution, the handle assembly includes an internal thread sleeve located inside the internal thread hole end. An external thread end one threadedly connected to the internal thread hole end is integrally formed at one end of the internal thread sleeve located inside the internal thread hole end. A second anti-loosening retaining ring for blocking the external thread end one is fixed at one end of the internal thread hole end close to the chain clip screw assembly. A connecting block is provided at one end of the internal thread sleeve located outside the sleeve body. A fixing sleeve is provided at the top of the connecting block. A handle body is fixed through a round hole provided on the fixing sleeve. A nut stopper is fixed at one end of the handle body away from the fixing sleeve. A threaded rod is provided at the bottom of the fixing sleeve. A hexagonal nut is threadedly installed at one end of the threaded rod away from the fixing sleeve. An elastic gasket is sleeved on the threaded rod between the connecting block and the hexagonal nut.

[0019] As an improved technical solution, the chain clip screw assembly includes a cross bar located inside the internal thread sleeve. An external thread end two threadedly connected to the internal thread on the internal thread sleeve is integrally formed at one end of the cross bar located inside the internal thread sleeve. A first anti-loosening retaining ring for blocking the external thread end two is fixed at one end of the internal thread sleeve close to the chain clip screw assembly. A connecting block is welded at one end of the cross bar away from the external thread end two. A chain cavity engaged with the chain body is provided at one end of the connecting block away from the cross bar.

[0020] As an improved technical solution, a first pin hole is provided on the front end face of the connecting block. A safety pin is provided inside the first pin hole. A spring groove is provided at one end of the safety pin located inside the first pin hole. A second compression spring is installed between the spring groove and one end of the inside of the first pin hole. A reduced diameter ring cavity is provided at one end of the safety pin close to the second compression spring. A third square groove is provided at one end of the safety pin away from the second compression spring. A fourth pin shaft hole communicating with the first pin hole is provided at the top of the connecting block, and a third elastic pin is provided inside the fourth pin shaft hole.

[0021] As an improved technical solution, a first air hole is provided at one end of the internal thread sleeve away from the external thread end one. A second air hole communicating with the internal thread hole end is provided at the bottom of the sleeve body close to the chain clip screw assembly.

[0022] As an improved technical solution, its application method is as follows:

[0023] S1: The travel of the tensioner is adjusted to the maximum state by unfolding the handle body and driving the internal threaded sleeve to rotate;

[0024] S2: Rotate the pressure rod body counterclockwise to open it, so that the square slot 1 and the square slot 2 are in a relative state, release the downward pressure of the latch on the connecting rod, and then pull the quick release assembly outward;

[0025] S3: Install the lashing piece on the quick release assembly, and the chain body on the chain clamp screw assembly to complete the connection and fixation between the fastener and the tensioner;

[0026] S4: Push the quick release assembly toward the inside of the sleeve, then rotate the pressure rod body clockwise to close the pressure rod body. At this time, the latch presses down the connecting rod to fix it, and the quick release assembly is locked inside the movable hole end as a whole to fix it;

[0027] S5: The overall travel of the tensioner is shortened by rotating the internal threaded sleeve in the reverse direction of the handle body, thereby shortening the distance between the quick release assembly and the chain clamp screw assembly, thereby tightening the chain body. Finally, the handle body is reset to a state parallel to the sleeve body to complete the installation.

[0028] S6: Press the T-shaped column inward to release the engagement between the convex clamping end and the T-shaped column, rotate the pressure rod body counterclockwise to release the downward pressure of the pin on the connecting rod. At this time, under the action of the tension on the chain body, the quick release assembly will be pulled out to the end away from the sleeve body, so that the chain body is in a loose state, pull out the R pin upward, and withdraw the pin shaft. At this time, the chain body and the tensioner are separated, and quick disassembly is achieved to complete the disassembly.

[0029] After adopting the above technical solution, the beneficial effects of the present invention are:

[0030] 1. In the present invention, the limit screw plays a blocking role on the quick release assembly, ensuring that the quick release assembly cannot be separated from the interior of the movable hole end on the tensioner during quick disassembly, thereby ensuring the stable operation of the tensioner and making the tensioner safe and reliable.

[0031] 2. In the present invention, the binding piece is installed inside the U-shaped cavity by means of a pin-shaft clamping method, thereby facilitating the installation and removal of the binding piece from the quick-release assembly. The chain body is clamped inside the chain cavity by a safety clamp, which can prevent the chain body from falling off from the chain cavity and maintain the stability of the tensioner. On the other hand, it can also facilitate the quick installation and removal of the chain body from the chain cavity.

[0032] 3. In the present invention, when the tensioner does not need to work, the handle body can be stored to reduce the space occupied by the tensioner as a whole, making it easy to store and carry. In addition, the double thread pair adjustment not only has a fast tightening speed but also a large stroke.

[0033] 4. In the present invention, the pressure rod assembly and the quick-release assembly are in a linkage state. Operating the pressure rod assembly can lock and release the quick-release assembly. Its tightening speed is far faster than manual threading, reducing the contraction amount of the tensioner, thereby achieving rapid retraction. During disassembly, opening the pressure rod assembly enables the rapid deployment of the chain. While having the functions of quickly tightening and disassembling fasteners, it adopts a modular design, with a compact structure, light weight, convenient installation and disassembly, good compatibility, short replacement and maintenance time, and is efficient, convenient and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0035] Figure 1 It is a schematic diagram of the overall structure of a fast and efficient tensioner mechanism and its application method of the present invention.

[0036] Figure 2 It is a schematic diagram of the structure of the quick-release assembly of a fast and efficient tensioner mechanism and its application method of the present invention.

[0037] Figure 3 It is a schematic diagram of the structure of the handle assembly of a fast and efficient tensioner mechanism and its application method of the present invention.

[0038] Figure 4 It is a schematic cross-sectional view of the pressure rod body of a fast and efficient tensioner mechanism and its application method of the present invention.

[0039] Figure 5 It is a schematic diagram of the structure of the chain clamp screw assembly of a fast and efficient tensioner mechanism and its application method of the present invention.

[0040] Figure 6 It is a schematic bottom-up cross-sectional view of the cross bar of a fast and efficient tensioner mechanism and its application method of the present invention.

[0041] Figure 7 It is a schematic cross-sectional view of the sleeve body of a fast and efficient tensioner mechanism and its application method of the present invention.

[0042] Figure 8 It is a schematic diagram of the tensioner tightening process of a fast and efficient tensioner mechanism and its application method of the present invention.

[0043] Figure 9Schematic diagram of the disassembly process of the tensioner for a fast and efficient tensioner mechanism and its application method of the present invention.

[0044] Figure 10 Schematic diagram of the disassembly process of the chain body for a fast and efficient tensioner mechanism and its application method of the present invention.

[0045] Figure 11 Schematic diagram of the structure of a fast and efficient tensioner mechanism and its application method of the present invention in the fast tightening state.

[0046] Figure 12 Schematic diagram of the structure of a fast and efficient tensioner mechanism and its application method of the present invention in the fast disassembly state.

[0047] Explanation of reference numerals:

[0048] 1. Sleeve body; 2. Pressure rod assembly; 21. Pin; 22. U-shaped frame; 23. Pressure rod body; 24. Spring hole; 25. First compression spring; 26. T-shaped column; 27. Card slot; 28. Convex card end; 29. First elastic pin; 210. Pin channel; 211. Vertical frame; 212. First square groove; 213. Third pin hole; 214. Second elastic pin; 215. Fourth pin hole; 3. Quick release assembly; 31. Connecting rod; 32. Second square groove; 33. Pin shaft; 34. Connecting seat; 35. U-shaped cavity; 36. Annular groove; 37. Anti-detachment groove; 4. Handle assembly; 41. Inner threaded sleeve; 42. First external threaded end; 43. First air hole; 44. Handle body; 45. Fixed sleeve; 46. Connecting block; 47. Hexagonal nut; 48. Threaded rod; 49. Nut stop; 410. Elastic gasket; 5. Chain clamp screw assembly; 51. Cross bar; 52. Second external threaded end; 53. Connecting block; 54. Third elastic pin; 55. Chain cavity; 56. Safety pin; 57. First pin hole; 58. Third square groove; 59. Reduced diameter ring cavity; 510. Spring groove; 511. Second compression spring; 6. Chain body; 7. Binding piece; 8. R pin; 9. Ring buckle; 10. Connecting ring; 11. Small chain; 12. First anti-detachment retaining ring; 13. Inner threaded sleeve block; 14. Convex block; 15. Limit screw; 16. Movable hole end; 17. Inner threaded hole end; 18. Second air hole; 19. Second anti-detachment retaining ring. Detailed implementation manners

[0049] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given in conjunction with the accompanying drawings of the specification.

[0050] Example 1

[0051] Refer to Figures 1-12, which is the first embodiment of the present invention, provides a fast and efficient tensioner mechanism and its application method. Such a fast and efficient tensioner mechanism includes a sleeve body 1. One end of the sleeve body 1 is provided with a movable hole end 16, and the other end of the sleeve body 1 is provided with an internal threaded hole end 17 that is coaxial and communicates with the movable hole end 16;

[0052] A pressure rod assembly 2 is installed on the top of the sleeve body 1. The pressure rod assembly 2 includes a U-shaped frame 22 rotatably installed on one side of the sleeve body 1, and a vertical frame 211 fixed on the other side of the sleeve body 1. A pressure rod body 23 is fixed at one end of the U-shaped frame 22 close to the vertical frame 211, and the pressure rod body 23 is snap-connected to the vertical frame 211;

[0053] A quick-release component 3 is arranged inside the movable hole end 16 of the sleeve body 1. The connecting ends of the quick-release component 3 are respectively installed with an R pin 8 and a connecting ring 10. Small chains 11 are fixed on both the R pin 8 and the connecting ring 10. One ends of the two small chains 11 are fixedly connected with a loop buckle 9. The small chains 11 are welded to the quick-release component 3. One end of the small chain 11 is connected to the R pin 8, and the other end is connected to a pin shaft 33 through the connecting ring 10. When the pin shaft 33 is connected to the chain, the small chain 11 can be installed on the link chain of the chain through the connecting ring 10 without being welded to the quick-release component 3;

[0054] A binding member 7 is detachably installed in the installation cavity of the quick-release component 3. The binding member 7 is one of a chain, an elephant foot or a hook. Different binding members 7 are connected to different binding points to realize quick bundling of goods and meet the quick bundling under different working conditions;

[0055] The sleeve body 1 is threadedly installed with a handle component 4 through the internal threaded hole end 17, and the handle component 4 moves horizontally along the direction of the internal threaded hole end 17. A chain clip screw component 5 is installed in the threaded cavity of the handle component 4, and the chain clip screw component 5 moves horizontally inside the handle component 4. A chain body 6 is detachably installed in the installation cavity at one end of the chain clip screw component 5 away from the sleeve body 1.

[0056] The quick-release component 3 includes a connecting rod 31 located inside the movable hole end 16. One end of the connecting rod 31 away from the sleeve body 1 is provided with a connecting seat 34, and the loop buckle 9 is welded to the connecting seat 34. A U-shaped cavity 35 is opened at one end of the connecting seat 34 away from the connecting rod 31. A pin shaft hole one communicating with the U-shaped cavity 35 is opened on the front surface of the connecting seat 34. A pin shaft 33 is arranged on the connecting seat 34 through the pin shaft hole one on it. One end of the pin shaft 33 is provided with a connecting hole for connecting with the connecting ring 10. An annular groove 36 is opened at one end of the pin shaft 33 away from the connecting ring 10. A pin hole two for snap-connecting with the R pin 8 is opened on the pin shaft 33 at the position of the annular groove 36.

[0057] The process of installing the binding member 7 on the quick-release component 3 is as follows:

[0058] Place the binding piece 7 inside the U-shaped cavity 35, and insert the pin shaft 33 into the pin shaft hole 1. At this time, the pin shaft 33 not only passes through the inner cavity of the U-shaped cavity 35, but also passes through the cavity of the binding piece 7. Insert the R pin 8 into the pin hole 2 at the annular groove 36, and confine the pin shaft 33 to the connecting seat 34, that is, the binding piece 7 is fixed inside the U-shaped cavity 35. Conversely, pull out the R pin 8 from the pin hole 2, and pull out the pin shaft 33 from the U-shaped cavity 35, so that the binding piece 7 can be disassembled. The binding piece 7 is installed in the U-shaped cavity 35 by the pin shaft 33, which makes it easy to install and disassemble the binding piece 7 from the quick release component 3.

[0059] An internal threaded sleeve block 13 is provided at the bottom of the sleeve body 1 near one end of the quick release component 3, and the internal threaded sleeve block 13 is connected to the interior of the movable hole end 16. An anti-slip groove 37 is provided at the bottom of the connecting rod 31. A limit screw 15 is threadedly installed on the internal threaded sleeve block 13, and the tail end of the limit screw 15 is located inside the anti-slip groove 37. The limit screw 15 is threadedly installed through the internal threaded sleeve block 13, and the tail end of the limit screw 15 enters the interior of the anti-slip groove 37. When quick disassembly is performed, the limit screw 15 slides inside the anti-slip groove 37 and limits the connecting rod 31, so that when the connecting rod 31 moves laterally, its range of motion is limited and it cannot be separated from the interior of the movable hole end 16. The limit screw 15 blocks the quick release component 3, ensuring that the quick release component 3 cannot be separated from the interior of the movable hole end 16 on the tensioner during quick disassembly, thereby ensuring the stable operation of the tensioner and making the tensioner safe and reliable.

[0060] The chain clamp screw assembly 5 includes a cross bar 51 located inside the internal threaded sleeve 41, and one end of the cross bar 51 located inside the internal threaded sleeve 41 is integrally formed with an external threaded end 52 threadedly connected to the internal threaded hole on the internal threaded sleeve 41, and an anti-slip ring 12 for blocking the external threaded end 52 is fixed at one end of the internal threaded sleeve 41 close to the chain clamp screw assembly 5, and a connecting block 53 is welded to the end of the cross bar 51 away from the external threaded end 52, and a chain cavity 55 clamped with the chain body 6 is set at the end of the connecting block 53 away from the cross bar 51, and the anti-slip ring 12 is set to block the external threaded end 52 to prevent the external threaded end 52 from completely detaching from the inside of the internal threaded sleeve 41 during rotation.

[0061] A pin hole one 57 is provided on the front end face of the connecting block 53. A safety pin 56 is arranged inside the pin hole one 57, and one end of the safety pin 56 is located outside the pin hole one 57. A spring groove 510 is provided at one end of the safety pin 56 located inside the pin hole one 57. A second compression spring 511 is installed between the spring groove 510 and one end inside the pin hole one 57. A reduced diameter ring cavity 59 is provided at one end of the safety pin 56 close to the second compression spring 511. A square groove three 58 is provided at the end of the safety pin 56 away from the second compression spring 511. A pin shaft hole four communicating with the pin hole one 57 is provided at the top of the connecting block 53. An elastic pin three 54 is arranged inside the pin shaft hole four, and the elastic pin three 54 passes through the inside of the square groove three 58. The chain clip screw assembly 5 is of an integrated design, making its performance good, reliability high, and easy to maintain.

[0062] The installation process of the chain body 6 and the chain clip screw assembly 5 is as follows:

[0063] Press the safety pin 56 into the pin hole one 57 to compress the second compression spring 511. At this time, the safety pin 56 extends deep into the pin hole one 57. At this time, the reduced diameter ring cavity 59 is just opposite to the position of the chain cavity 55. After clamping the chain body 6 inside the chain cavity 55, release the pressure applied to the safety pin 56. Under the elastic reset action of the second compression spring 511, drive the whole safety pin 56 to reset outward. The reduced diameter ring cavity 59 and the chain cavity 55 are in a staggered state. At this time, the diameter of the limiting part of the safety pin 56 becomes larger, and the chain body 6 can be restricted inside the chain cavity 55 through the safety pin 56. When the chain body 6 needs to be disassembled, press the safety pin 56 so that the reduced diameter ring cavity 59 is opposite to the inside of the chain cavity 55. At this time, the diameter of the limiting part of the chain clip screw assembly 5 becomes larger, and the chain body 6 can be taken out from the inside of the chain cavity 55. Clamping the chain body 6 inside the chain cavity 55 through the safety pin 56 can, on the one hand, prevent the chain body 6 from falling off from the inside of the chain cavity 55 and maintain the stability of the tensioner during use, and on the other hand, it is also convenient for the quick installation and disassembly of the chain body 6 from the inside of the chain cavity 55.

[0064] During use, the pressure rod assembly 2 and the quick release assembly 3 are in a linkage state. Operating the pressure rod assembly 2 realizes the locking and unlocking of the quick release assembly 3. When tightening the chain body 6, push the quick release assembly 3 into the inside of the sleeve 1 and fix the locked quick release assembly 3 by pressing the pressure rod assembly 2, so as to quickly tighten the chain body 6. Its tightening speed far exceeds that of manual screwing, reducing the contraction amount of the tensioner, thereby realizing quick retraction. During disassembly, open the pressure rod assembly 2, and the quick release assembly 3 quickly slides out from the inside of the sleeve 1. The tension of the chain body 6 instantly becomes smaller, and then pull out the pin shaft of the quick release part to realize quick expansion. It has the functions of quickly tightening and disassembling the fastener. The installation time < 1 minute, the disassembly time is less than 15 seconds. At the same time, it adopts a modular design, with a compact structure, light weight, convenient installation and disassembly, good mutual matching, short replacement and maintenance time, and is efficient, convenient and reliable.

[0065] Embodiment 2

[0066] Reference Figures 3-4 , which is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: a convex block 14 is provided at the upper position near one end of the sleeve body 1 close to the internal thread sleeve block 13. The convex block 14 is rotatably installed with a bolt 21 through a pin shaft hole two opened thereon, and both ends of the bolt 21 are respectively connected to both sides of the inner wall of the U-shaped frame 22. Both ends of the bolt 21 are provided with pin holes three 213, and both ends of the U-shaped frame 22 are provided with pin holes four 215. An elastic pin two 214 is arranged between the pin holes three 213 and the pin holes four 215 on the same side, and the bolt 21 and the U-shaped frame 22 are fixed by inserting the elastic pin two 214 between the pin holes three 213 and the pin holes four 215 on the same side. A square groove two 32 is opened at one end of the connecting rod 31 far from the connecting seat 34, and a square groove one 212 that fits with the square groove two 32 is opened at the middle part of the bolt 21.

[0067] A spring hole 24 is opened at one end of the pressure rod body 23 close to the vertical frame 211. A T-shaped column 26 is arranged at one end of the spring hole 24 close to the vertical frame 211. A compression spring one 25 is arranged at the other end of the spring hole 24 far from the vertical frame 211, and the opposite ends of the compression spring one 25 and the T-shaped column 26 are in contact. A clamping groove 27 is opened at one end of the T-shaped column 26 far from the compression spring one 25, and a convex clamping end 28 that is clamped with the clamping groove 27 is arranged at the top end of the vertical frame 211. At the same time, a bevel is opened at the bottom of the T-shaped column 26, a pin channel 210 is opened at the vertical rod end of the T-shaped column 26, a pin shaft hole three communicating with the inside of the spring hole 24 is opened at one end of the pressure rod body 23 close to the clamping groove 27, and an elastic pin one 29 is arranged inside the pin shaft hole three, and the elastic pin one 29 passes through the inside of the pin channel 210.

[0068] The process of opening the pressure rod body 23 is as follows:

[0069] Press the T-shaped column 26 into the inside of the spring hole 24 and compress the compression spring one 25. At this time, the convex clamping end 28 is disengaged from the inside of the clamping groove 27, and the clamping connection between the vertical frame 211 and the T-shaped column 26 is released, so that the limitation on the pressure rod body 23 can be released. Rotate the pressure rod body 23 counterclockwise to open the pressure rod body 23;

[0070] The process of closing the pressure rod body 23 is as follows:

[0071] Rotate the pressure rod body 23 clockwise, so that the convex clamping end 28 applies a pressure to the T-shaped column 26 in the direction of the compression spring one 25. The T-shaped column 26 compresses the compression spring one 25, and the T-shaped column 26 continuously enters the inside of the spring hole 24. When the convex clamping end 28 is located at the side end face of the clamping groove 27, under the elastic reset action of the compression spring one 25, the T-shaped column 26 is pushed in the reverse direction of the vertical frame 211, so that the convex clamping end 28 can be clamped inside the clamping groove 27 to complete the closing of the pressure rod body 23.

[0072] The handle assembly 4 includes an internal threaded sleeve 41 located inside the internal threaded hole end 17, and one end of the internal threaded sleeve 41 located inside the internal threaded hole end 17 is integrally formed with an external threaded end 42 threadedly connected to the internal threaded hole end 17, and an anti-slip retaining ring 19 for blocking the external threaded end 42 is fixed at one end of the internal threaded hole end 17 near the chain clamp screw assembly 5. The anti-slip retaining ring 19 is set to block the external threaded end 42 to prevent the external threaded end 42 from completely separating from the internal threaded hole end 17 during rotation. The anti-slip retaining ring 12 and the anti-slip retaining ring 19 are set to ensure that the threaded part will not separate from the base when rotating. The end of the internal threaded sleeve 41 located outside the sleeve body 1 is provided with a connecting block 46 A fixing sleeve 45 is provided on the top of the connecting block 46, and a handle body 44 is fixed to the fixing sleeve 45 through a circular hole opened thereon, and a nut stopper 49 is fixed to the end of the handle body 44 away from the fixing sleeve 55, a threaded rod 48 is provided at the bottom of the fixing sleeve 45, and a fixing through hole for the threaded rod 48 to pass through is provided on the connecting block 46, and a hexagonal nut 47 is threadedly installed on the end of the threaded rod 48 away from the fixing sleeve 45, and an elastic gasket 410 is sleeved on the threaded rod 48 and located between the connecting block 46 and the hexagonal nut 47. When the tensioner does not need to work, the handle body 44 is stored to reduce the space occupied by the tensioner as a whole, so as to facilitate its storage and carrying, and the double thread pair adjustment not only has a fast tightening speed but also a large stroke.

[0073] During use, the process of adjusting the tensioner stroke is as follows:

[0074] Unscrew the hexagonal nut 47 from the threaded rod 48 to release the interference between it and the connecting block 46, and then release the interference and locking of the fixing sleeve 45 on the connecting block 46. After rotating the handle body 44 outward by ninety degrees, rotate the hexagonal nut 47 in the opposite direction to fix the handle body 44. At this time, the handle body 44 and the sleeve body 1 are in a vertical state, and the handle body 44 drives the internal threaded sleeve 41 to rotate. Under the threaded transmission action of the external threaded end 42 and the internal threaded hole end 17, and the threaded transmission action of the external threaded end 52 and the threaded hole on the internal threaded sleeve 41, the internal threaded sleeve 41 and the cross bar 51 are driven to move outward synchronously to expand the overall stroke of the tensioner. Conversely, the overall stroke of the tensioner can be reduced. When the handle body 44 is not needed, adjust the handle body 44 to be parallel to the upper side. At this time, the handle body 44 and the sleeve body 1 are in a parallel state.

[0075] The remaining structures are the same as those of Example 1.

[0076] Example 3

[0077] Reference Figure 3 and Figure 7, which is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that: a first air hole 43 is provided at one end of the internal thread sleeve 41 away from the first external thread end 42, and a second air hole 18 communicating with the internal thread hole end 17 is provided at the bottom of the sleeve body 1 and near one end of the chain clip screw assembly 5.

[0078] During use, during normal use, an appropriate amount of grease is applied to the first external thread end 42 and the second external thread end 52. Air holes are provided on both the sleeve body 1 and the internal thread sleeve 41. The air holes are used to adjust the air pressure inside the internal thread hole end 17 and the internal thread sleeve 41, so as to maintain the stability by keeping the internal air pressure balanced.

[0079] The remaining structures are the same as those in Embodiment 2.

[0080] A fast and efficient tensioner mechanism, and its application method is as follows:

[0081] The process of tightening the tensioner is as follows:

[0082] By unfolding the handle body 44 and driving the internal thread sleeve 41 to rotate, the stroke of the tensioner is adjusted to the maximum state;

[0083] Rotate the pressure rod body 23 counterclockwise to open the pressure rod body 23, so that the first square groove 212 and the second square groove 32 are in a relative state, release the downward pressure of the pin 21 on the connecting rod 31, and then the quick release component 3 can be pulled outward;

[0084] Install the binding member 7 on the quick release component 3 and install the chain body 6 on the chain clip screw assembly 5 to complete the connection and fixation between the fastener and the tensioner;

[0085] Push the quick release component 3 into the inside of the sleeve body 1, and then rotate the pressure rod body 23 clockwise to close the pressure rod body 23. At this time, the pin 21 presses and fixes the connecting rod 31, and the whole quick release component 3 is locked inside the movable hole end 16 for fixation;

[0086] Rotate the internal thread sleeve 41 in the reverse direction through the handle body 44 to shorten the overall stroke of the tensioner, shorten the distance between the quick release component 3 and the chain clip screw assembly 5, and then tighten the chain body 6. Finally, reset the handle body 44 to a state parallel to the sleeve body 1 to complete the installation;

[0087] The process of disassembling the tensioner is as follows:

[0088] Press the T-shaped column 26 inward to release the clamping between the convex clamping end 28 and the T-shaped column 26, and rotate the pressure rod body 23 counterclockwise to release the downward pressure state of the pin 21 on the connecting rod 31;

[0089] At this time, under the action of the tension of the chain body 6, the quick release component 3 will be pulled out towards the end away from the sleeve body 1, making the chain body 6 in a loose state;

[0090] Pull out the R pin 8 upward and extract the pin shaft 33. At this time, the chain body 6 is separated from the tensioner, achieving rapid disassembly and completing the disassembly.

[0091] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A fast and efficient tensioner mechanism, comprising a sleeve body (1), characterized in that: One end of the sleeve body (1) is provided with a movable hole end (16), and the other end of the sleeve body (1) is provided with an internal thread hole end (17) that is coaxial with and communicates with the movable hole end (16); A pressure rod assembly (2) is installed on the top of the sleeve body (1). The pressure rod assembly (2) includes a U-shaped frame (22) rotatably installed on one side of the sleeve body (1), and a vertical frame (211) fixed on the other side of the sleeve body (1). A pressure rod body (23) is fixed at one end of the U-shaped frame (22) close to the vertical frame (211), and the pressure rod body (23) is snap-connected to the vertical frame (211); A quick-release assembly (3) is arranged inside the movable hole end (16) of the sleeve body (1). Connecting ends of the quick-release assembly (3) are respectively installed with an R pin (8) and a connecting ring (10). Small chains (11) are fixed on both the R pin (8) and the connecting ring (10). One ends of the two small chains (11) are fixedly connected with a ring buckle (9); A binding member (7) is detachably installed in the installation cavity of the quick-release assembly (3). The binding member (7) is one of a chain, an elephant foot, or a hook; The sleeve body (1) is threadedly installed with a handle assembly (4) through the internal thread hole end (17), and the handle assembly (4) moves horizontally along the direction of the internal thread hole end (17). A chain clip screw rod assembly (5) is installed in the threaded cavity of the handle assembly (4), and the chain clip screw rod assembly (5) moves horizontally inside the handle assembly (4). A chain body (6) is detachably installed in the installation cavity at one end of the chain clip screw rod assembly (5) away from the sleeve body (1).

2. The rapid and efficient tensioner mechanism according to claim 1, characterized in that: The quick-release assembly (3) includes a connecting rod (31) located inside the movable hole end (16). A connecting seat (34) is provided at one end of the connecting rod (31) away from the sleeve body (1), and the ring buckle (9) is welded on the connecting seat (34). A U-shaped cavity (35) is formed at one end of the connecting seat (34) away from the connecting rod (31). A pin shaft hole one communicating with the U-shaped cavity (35) is formed on the front surface of the connecting seat (34). A pin shaft (33) is arranged on the connecting seat (34) through the pin shaft hole one on it. An annular groove (36) is formed at one end of the pin shaft (33) away from the connecting ring (10). A pin hole two for snap-connecting with the R pin (8) is formed on the pin shaft (33) at the position of the annular groove (36).

3. The quick and efficient tensioner mechanism according to claim 2, wherein: An internal thread sleeve block (13) is provided at the bottom of the sleeve body (1) close to one end of the quick-release assembly (3). An anti-detachment groove (37) is formed at the bottom of the connecting rod (31). A limit screw (15) is threadedly installed on the internal thread sleeve block (13), and the tail end of the limit screw (15) is located inside the anti-detachment groove (37).

4. A rapid and efficient tensioner mechanism according to claim 3, characterized in that: At a position above the upper end of the sleeve body (1) close to the internal thread sleeve block (13), a convex block (14) is provided. The convex block (14) is rotatably installed with a bolt (21) through a pin shaft hole two opened thereon. Both ends of the bolt (21) are provided with pin holes three (213). Both ends of the U-shaped frame (22) are provided with pin holes four (215). An elastic pin two (214) is arranged between the pin hole three (213) and the pin hole four (215) on the same side. The bolt (21) and the U-shaped frame (22) are fixed by inserting the elastic pin two (214) between the pin hole three (213) and the pin hole four (215) on the same side. One end of the connecting rod (31) far from the connecting seat (34) is provided with a square groove two (32). A square groove one (212) which is matched with the square groove two (32) is opened at the middle part of the bolt (21).

5. A rapid and efficient tensioner mechanism according to claim 4, characterized in that: One end of the pressure rod body (23) close to the vertical frame (211) is provided with a spring hole (24). One end of the spring hole (24) close to the vertical frame (211) is provided with a T-shaped column (26). One end of the spring hole (24) far from the vertical frame (211) is provided with a compression spring one (25). A clamping groove (27) is opened at one end of the T-shaped column (26) far from the compression spring one (25). The top end of the vertical frame (211) is provided with a convex clamping end (28) which is clamped with the clamping groove (27). A pin channel (210) is opened at the vertical rod end of the T-shaped column (26). One end of the pressure rod body (23) close to the clamping groove (27) is provided with a pin shaft hole three which is communicated with the inside of the spring hole (24). An elastic pin one (29) is arranged inside the pin shaft hole three.

6. A fast and efficient tensioner mechanism according to claim 5, characterized in that: The handle assembly (4) includes an internal thread sleeve (41) located inside the internal thread hole end (17). One end of the internal thread sleeve (41) located inside the internal thread hole end (17) is integrally formed with an external thread end one (42) which is threadedly connected with the internal thread hole end (17). An anti-drop retaining ring two (19) for blocking the external thread end one (42) is fixed at one end of the internal thread hole end (17) close to the chain clamp screw assembly (5). One end of the internal thread sleeve (41) located outside the sleeve body (1) is provided with a connecting block (46). A fixing sleeve (45) is arranged at the top of the connecting block (46). A handle body (44) is fixed through a round hole opened on the fixing sleeve (45). A nut stopper (49) is fixed at one end of the handle body (44) far from the fixing sleeve (45). A threaded rod (48) is opened at the bottom of the fixing sleeve (45). A hexagonal nut (47) is threadedly installed at one end of the threaded rod (48) far from the fixing sleeve (45). An elastic gasket (410) is sleeved on the threaded rod (48) between the connecting block (46) and the hexagonal nut (47).

7. A rapid and efficient tensioner mechanism according to claim 6, characterized in that: The chain clip screw assembly (5) includes a cross bar (51) located inside the internal thread sleeve (41). One end of the cross bar (51) located inside the internal thread sleeve (41) is integrally formed with an external thread end two (52) that is threadedly connected to the internal thread hole on the internal thread sleeve (41). One end of the internal thread sleeve (41) close to the chain clip screw assembly (5) is fixed with an anti - detachment retaining ring one (12) for blocking the external thread end two (52). The end of the cross bar (51) far from the external thread end two (52) is welded with a connecting block (53). The end of the connecting block (53) far from the cross bar (51) is provided with a chain cavity (55) that is clamped with the chain body (6).

8. A rapid and efficient tensioner mechanism according to claim 7, characterized in that: A pin hole one (57) is opened on the front end face of the connecting block (53). A safety snap pin (56) is arranged inside the pin hole one (57). A spring groove (510) is opened at one end of the safety snap pin (56) located inside the pin hole one (57). A compression spring two (511) is installed between the spring groove (510) and one end inside the pin hole one (57). A reduced - diameter ring cavity (59) is opened at one end of the safety snap pin (56) close to the compression spring two (511). A square groove three (58) is opened at the end of the safety snap pin (56) far from the compression spring two (511). A pin shaft hole four communicating with the pin hole one (57) is opened at the top of the connecting block (53), and an elastic pin three (54) is arranged inside the pin shaft hole four 9. A quick and efficient tensioner mechanism according to claim 8, characterized in that: An air hole one (43) is opened at one end of the internal thread sleeve (41) far from the external thread end one (42). An air hole two (18) communicating with the internal thread hole end (17) is opened at the bottom of the sleeve body (1) and close to one end of the chain clip screw assembly (5).

10. A rapid and efficient tensioner mechanism according to claim 9, characterized in that: Its application method is as follows: S1: By unfolding the hand grip body (44) and driving the internal thread sleeve (41) to rotate, the stroke of the tensioner is adjusted to the maximum state; S2: Rotate the pressure rod body (23) counter - clockwise to open the pressure rod body (23), so that the square groove one (212) and the square groove two (32) are in a relative state, releasing the downward pressure of the plug pin (21) on the connecting rod (31), and then the quick - release assembly (3) can be pulled outward; S3: Install the binding member (7) on the quick - release assembly (3) and install the chain body (6) on the chain clip screw assembly (5) to complete the connection and fixation between the fastener and the tensioner; S4: Push the quick - release assembly (3) into the interior of the sleeve body (1), and then rotate the pressure rod body (23) clockwise to close the pressure rod body (23). At this time, the plug pin (21) presses and fixes the connecting rod (31), and the whole quick - release assembly (3) is locked inside the movable hole end (16) for fixation; S5: Rotate the internal thread sleeve (41) in the reverse direction through the hand grip body (44) to shorten the overall stroke of the tensioner, shorten the distance between the quick - release assembly (3) and the chain clip screw assembly (5), and then tighten the chain body (6). Finally, reset the hand grip body (44) to a state parallel to the sleeve body (1) to complete the installation; S6: Press the T-shaped column (26) inward to release the clamping connection between the convex clamping end (28) and the T-shaped column (26), rotate the pressure rod body (23) counterclockwise to release the pressing state of the latch pin (21) on the connecting rod (31). At this time, under the action of the tension of the chain body (6), the quick-release assembly (3) will be pulled out towards the end far from the sleeve body (1), making the chain body (6) in a loose state. Pull out the R pin (8) upward and withdraw the pin shaft (33). At this time, the chain body (6) is separated from the tensioner, achieving rapid disassembly and completing the disassembly.

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