Adjustable double-speed release tensioner

Abstract

The utility model discloses an adjustable double-speed release tensioner which comprises a locking seat, two threaded cylinders are rotationally installed in the locking seat, screws are installed in the two threaded cylinders in a threaded mode, lock hooks are arranged at the opposite ends of the two screws, a fixing shaft is jointly installed in the two threaded cylinders, a driving gear is installed on the shaft wall of the fixing shaft, and the two threaded cylinders are fixedly connected with the locking seat. A fixed seat is rotationally mounted below the inner wall of the locking seat; after the ropes are fixed through the lock hooks at the two ends, the fixing ring is pushed to drive the driving gear and the fixing shaft to rotate, so that the threaded cylinders on the two sides are controlled to rotate together, the ropes on the two sides are pulled to be tensioned, and when the tensioning degree is increased, limiting is conducted in cooperation with a limiting plate in the limiting assembly; the situation that the driving gear drives the threaded barrel to rotate reversely due to too large tensioning degree is prevented, the rope binding tightness is more uniform, and during unloading, the connecting rod is pushed to extrude the limiting plate to move towards one side, so that fixing of the driving gear is relieved, and rope fixing is rapidly relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical fasteners, in particular to an adjustable dual-speed release tensioner. Background Art

[0002] In logistics, cargo lashing, and numerous other industrial fields, tensioners are critical devices used to ensure the stability and safety of cargo during transportation or securing. With the continuous advancement of industrial technology and the increasing diversification of practical application scenarios, the requirements for tensioner performance are also gradually increasing, prompting the development and application of adjustable dual-speed release tensioners.

[0003] In actual use, the tensioners in the existing technology cannot be flexibly adjusted when facing goods of different weights and different binding requirements. Since the traditional tensioners are usually composed of a screw and a threaded barrel, the screws on both sides that pull the goods are driven to retract in the opposite direction by rotating the threaded barrel, thereby fixing the ropes at both ends of the bundled goods. When unloading, it is also necessary to repeatedly rotate the threaded barrel in the opposite direction to control the hooks on the screws on both sides to release the tightness of the rope, thereby releasing the ropes that bind the goods. This fixing method is more cumbersome to operate and is time-consuming and labor-intensive. Uneven tightening force is likely to occur during operation, which may seriously damage the goods or the binding ropes.

[0004] Therefore, an adjustable dual-speed release tensioner is proposed. Utility Model Content

[0005] The purpose of the present utility model is to provide an adjustable dual-speed release tensioner to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an adjustable two-speed release tensioner, comprising a locking seat, wherein two threaded barrels are rotatably installed inside the locking seat, and screws are threadedly installed inside the two threaded barrels. Lock hooks are provided at opposite ends of the two screws, and a fixed shaft is commonly installed inside the two threaded barrels. A driving gear is installed on the shaft wall of the fixed shaft, and a fixed seat is rotatably installed below the inner wall of the locking seat, and a limiting assembly for fixing the rotation position of the driving gear is provided on the fixed seat, and fixing rings are installed on both sides of the shaft wall of the fixed shaft, and one side of the two fixing rings is respectively installed on the corresponding threaded barrels.

[0007] Preferably, the limiting assembly includes two torsion springs, one end of each of the torsion springs is installed on a fixed seat, the other end of each of the torsion springs is installed with a connecting block, one side of the two connecting blocks is jointly installed with a limiting plate, and one side of the two limiting plates is jointly provided with a pushing assembly for pushing them to release the limit of the driving gear.

[0008] Preferably, the pushing assembly includes a rotating seat, which is installed on a limiting plate. A connecting head is rotatably installed inside the rotating seat, a connecting rod is installed on one side of the connecting head, and the other end of the connecting rod passes through the locking seat and extends to the outside. The upper part of the outer wall of the limiting plate is inserted into one side of the driving gear.

[0009] Preferably, a rotating ring is slidably mounted on the rod wall of the connecting rod, a fixing opening matching the outer wall of the rotating ring is opened inside the locking seat, the rotating ring is mounted inside the fixing opening, and a button is mounted on the other end of the connecting rod.

[0010] Preferably, an adapter seat is installed at the other end of the two screw rods, and an adapter is threadedly installed inside the two adapter seats, and the two locking hooks are respectively installed on the corresponding adapters.

[0011] Preferably, a handle is mounted on the outer walls of the two fixing rings, and a grip opening is provided inside the handle.

[0012] Preferably, a handle is installed on one side of the locking seat, and a protective pad is provided on the outer wall of the handle.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. After the rope is fixed by the locking hooks at both ends, the utility model drives the driving gear and the fixed shaft to rotate by pushing the fixing ring, thereby controlling the threaded barrels on both sides to rotate together, thereby pulling the ropes on both sides to tighten. When the tension becomes larger, the limit plate in the limit assembly is used to limit the position to prevent the driving gear from driving the threaded barrel to rotate in the opposite direction due to excessive tension, so that the tightness of the rope binding is more uniform. When unloading, the connecting rod is pushed to squeeze the limit plate to move to one side, thereby releasing the fixation of the driving gear and quickly releasing the rope fixation, which is easy to operate.

[0015] 2. The utility model connects the screw and the lock hook through an adapter and an adapter, and the adapter and the adapter are threadedly connected, which facilitates the subsequent replacement of the lock hook and is convenient for use according to actual needs when bundling goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 It is a partial cross-sectional structural schematic diagram of the utility model;

[0019] Figure 4This is a schematic diagram of the cross-sectional connection structure of the limit plate and the driving gear of the utility model.

[0020] In the figure: 1. Locking seat; 2. Threaded barrel; 3. Screw; 4. Locking hook; 5. Fixed seat; 6. Torsion spring; 7. Connecting block; 8. Limiting plate; 9. Rotating seat; 10. Connecting head; 11. Connecting rod; 12. Fixed shaft; 13. Fixed ring; 14. Driving gear; 15. Handle; 16. Grip; 17. Adapter seat; 18. Adapter; 19. Fixed mouth; 20. Rotating ring; 21. Button; 22. Grip. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0022] Example 1: Please refer to Figure 1-4 The utility model provides a technical solution: an adjustable dual-speed release tensioner, including a locking seat 1, two threaded barrels 2 are rotatably installed inside the locking seat 1, screws 3 are threadedly installed inside the two threaded barrels 2, and locking hooks 4 are provided at opposite ends of the two screws 3. A fixed shaft 12 is commonly installed inside the two threaded barrels 2, and a driving gear 14 is installed on the shaft wall of the fixed shaft 12. A fixed seat 5 is rotatably installed below the inner wall of the locking seat 1, and a limit assembly for fixing the rotation position of the driving gear 14 is provided on the fixed seat 5. Fixed rings 13 are installed on both sides of the shaft wall of the fixed shaft 12. The two fixed rings 1 One side of 3 is respectively installed on the corresponding threaded barrel 2. After the rope is fixed by the locking hooks 4 at both ends, the driving gear 14 and the fixed shaft 12 are driven to rotate by pushing the fixing ring 13, thereby controlling the threaded barrels 2 on both sides to rotate together, thereby pulling the ropes on both sides to tighten. When the tension becomes larger, the limiting plate 8 in the limiting assembly is cooperated to limit the position to prevent the tension from being too large, which causes the driving gear 14 to drive the threaded barrel 2 to rotate in the opposite direction, making the tightness of the rope binding more uniform. When unloading, the connecting rod 11 is pushed to squeeze the limiting plate 8 to move to one side, thereby releasing the fixation of the driving gear 14 and quickly releasing the rope fixation.

[0023] like Figure 2 and 4As shown, the limiting assembly includes two torsion springs 6, one end of the two torsion springs 6 is mounted on the fixed seat 5, the other end of the two torsion springs 6 is mounted with a connecting block 7, one side of the two connecting blocks 7 is jointly mounted with a limiting plate 8, one side of the two limiting plates 8 is jointly provided with a pushing assembly for pushing it to release the limit of the driving gear 14, the pushing assembly includes a rotating seat 9, the rotating seat 9 is mounted on the limiting plate 8, the internal rotation of the rotating seat 9 is mounted with a connecting head 10, one side of the connecting head 10 is mounted with a connecting rod 11, the other end of the connecting rod 11 passes through the locking seat 1 and extends to the outside, and is plugged into the upper part of the outer wall of the limiting plate 8. On one side of the driving gear 14, when the tension reaches a certain level, the driving gear 14 may have a tendency to rotate in the opposite direction due to factors such as the reaction force of the rope. At this time, the limiting assembly comes into play. The limiting assembly includes a torsion spring 6, a connecting block 7 and a limiting plate 8. One end of the torsion spring 6 is installed on the fixing seat 5, and the other end is connected to the block 7. The two connecting blocks 7 are jointly installed with the limiting plate 8. In the normal tension state, under the elastic force of the torsion spring 6, one side of the limiting plate 8 is stuck in the tooth groove of the driving gear 14, thereby limiting the driving gear 14 and preventing it from rotating in the opposite direction, thereby keeping the rope in a tensioned state.

[0024] A rotating ring 20 is slidably installed on the rod wall of the connecting rod 11, and a fixed opening 19 matching the outer wall of the rotating ring 20 is opened inside the locking seat 1. The rotating ring 20 is installed inside the fixed opening 19, and a button 21 is installed at the other end of the connecting rod 11. The sliding of the rotating ring 20 slidably installed on the rod wall of the connecting rod 11 in the fixed opening 19 can play a certain guiding and stabilizing role, making the pushing action of the connecting rod 11 more smooth and reliable.

[0025] like Figure 1 and 3 As shown, the other ends of the two screw rods 3 are each installed with an adapter 17, and the interiors of the two adapters 17 are threadedly installed with adapters 18. The two lock hooks 4 are respectively installed on the corresponding adapters 18. The two ends of the rope are respectively hung on the two lock hooks 4. The lock hooks 4 are threadedly connected to the adapter 17 through the adapter 18. The adapter 17 is installed at the end of the screw rod 3. This connection method is convenient for subsequent replacement of different types of lock hooks 4 according to actual needs to adapt to different bundling scenarios.

[0026] A handle 15 is installed on the outer walls of the two fixing rings 13, and a hand grip 16 is opened inside the handle 15. During the fixing and unlocking process, the fixing ring 13 and the driving gear 14 are rotated by pressing the handle 15, thereby driving the threaded tubes 2 on both sides to pull the ropes on both sides to tighten. A handle 22 is installed on one side of the locking seat 1, and a protective pad is provided on the outer wall of the handle 22. When in use, the locking seat 1 is taken by holding the handle 22, and the protective pad is set, which makes it more stable when using the locking seat 1.

[0027] The working principle is as follows: in actual use, the present invention first drives the threaded barrel 2 to rotate and tighten the rope. The operator holds the handle 15, which is installed on the outer walls of the two fixing rings 13. The fixing ring 13 is fixed to the shaft wall of the fixed shaft 12. By pushing the fixing ring 13, the fixed shaft 12 is driven to rotate. A driving gear 14 is installed on the shaft wall of the fixed shaft 12. The driving gear 14 is engaged with the teeth inside the two threaded barrels 2. When the fixed shaft 12 rotates, the driving gear 14 rotates accordingly, thereby driving the two threaded barrels 2 to rotate together. A screw 3 is installed on the internal thread of the threaded barrel 2. Since the end of the screw 3 is restricted from axial movement by the lock hook 4 and the rope, when the threaded barrel 2 rotates, the screw 3 will move axially inside the threaded barrel 2, and the two screws 3 will simultaneously contract in opposite directions, thereby pulling the rope to achieve tensioning of the cargo.

[0028] Dual-speed tensioning mechanism: In the initial stage of tensioning, when the cargo is heavy or the rope needs to be tightened quickly to initially fix the cargo, the operator can apply a large force to push the fixing ring 13, so that the driving gear 14 rotates quickly, driving the threaded barrel 2 to rotate quickly, and the screw 3 contracts quickly to achieve high-speed tensioning. At this time, due to the heavy cargo, the tensioning force of the rope is relatively small, and the fast tensioning speed will not cause damage to the cargo or rope, but can improve work efficiency. As the rope tension gradually increases, when it approaches the required tensioning degree, the operator appropriately reduces the force pushing the fixing ring 13, so that the rotation speed of the driving gear 14 decreases, the rotation speed of the threaded barrel 2 slows down, and the contraction speed of the screw 3 also slows down, entering the low-speed tensioning stage, in this way, the tensioning force of the rope can be accurately controlled, the tightness of the rope binding is more uniform, and damage to the cargo or rope due to excessive tensioning force is avoided, ensuring the firmness and safety of the binding;

[0029] Limiting principle: During the tensioning process, when the tension reaches a certain level, the driving gear 14 may have a tendency to rotate in the opposite direction due to factors such as the reaction force of the rope. At this time, the limiting component comes into play. The limiting component includes a torsion spring 6, a connecting block 7 and a limiting plate 8. One end of the torsion spring 6 is installed on the fixed seat 5, and the other end is connected to the connecting block 7. The two connecting blocks 7 are jointly installed with the limiting plate 8. Under normal tension, the limiting plate 8 is clamped in the tooth groove of the driving gear 14 by the elastic force of the torsion spring 6, limiting the driving gear 14 to prevent it from rotating in the opposite direction, thereby keeping the rope in a taut state. When the rope needs to be released, that is, to unload or adjust the bundling of goods, the operator presses the button 21. The button 21 is installed at the end of the connecting rod 11. The other end of the connecting rod 11 is rotatably connected to the rotating seat 9 through the connecting head 10. The seat 9 is installed on the limit plate 8. When the button 21 is pressed, the connecting rod 11 will push the limit plate 8 to one side, overcome the elastic force of the torsion spring 6, and disengage the limit plate 8 from the tooth groove of the drive gear 14, thereby releasing the limit on the drive gear 14. Since the limit of the drive gear 14 is released, under the action of the tension of the rope itself, the screw 3 and the threaded barrel 2 rotate in opposite directions, causing the screw 3 to extend outward, quickly releasing the tensioned state of the rope and realizing quick release of the rope. In this process, the operator can appropriately control the release speed of the rope by controlling the degree and time of pressing the control button 21, ensuring that the cargo is safely and smoothly unloaded or adjusted. The adjustable two-speed release tensioner realizes the functions of two-speed tensioning, precise limiting and quick release of the rope through ingenious structural design. It is easy to operate and can effectively improve the efficiency and safety of cargo bundling and transportation.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable two-speed release tensioner, comprising a locking seat (1), characterized in that: Two threaded barrels (2) are rotatably mounted inside the locking seat (1), and screws (3) are threadedly mounted inside the two threaded barrels (2). Lock hooks (4) are provided at opposite ends of the two screws (3). A fixed shaft (12) is commonly mounted inside the two threaded barrels (2), and a driving gear (14) is mounted on the shaft wall of the fixed shaft (12). A fixed seat (5) is rotatably mounted below the inner wall of the locking seat (1), and a limit assembly for fixing the rotation position of the driving gear (14) is provided on the fixed seat (5). Fixed rings (13) are mounted on both sides of the shaft wall of the fixed shaft (12), and one side of the two fixed rings (13) is respectively mounted on the corresponding threaded barrel (2).

2. The adjustable dual-speed release tensioner according to claim 1, characterized in that: The limiting assembly comprises two torsion springs (6), one end of each of the two torsion springs (6) is mounted on a fixing seat (5), the other end of each of the two torsion springs (6) is mounted with a connecting block (7), one side of the two connecting blocks (7) is jointly mounted with a limiting plate (8), and one side of the two limiting plates (8) is jointly provided with a pushing assembly for pushing them to release the limiting of the driving gear (14).

3. The adjustable dual-speed release tensioner according to claim 2, characterized in that: The pushing assembly includes a rotating seat (9), which is installed on a limiting plate (8). A connecting head (10) is rotatably installed inside the rotating seat (9), and a connecting rod (11) is installed on one side of the connecting head (10). The other end of the connecting rod (11) passes through the locking seat (1) and extends to the outside. The upper side of the outer wall of the limiting plate (8) is plugged into one side of the driving gear (14).

4. The adjustable dual-speed release tensioner according to claim 3, characterized in that: A rotating ring (20) is slidably mounted on the rod wall of the connecting rod (11); a fixing opening (19) matching the outer wall of the rotating ring (20) is provided inside the locking seat (1); the rotating ring (20) is mounted inside the fixing opening (19); and a button (21) is mounted on the other end of the connecting rod (11).

5. The adjustable dual-speed release tensioner according to claim 1, characterized in that: The other ends of the two screw rods (3) are both installed with adapters (17), the interiors of the two adapters (17) are both threadedly installed with adapters (18), and the two locking hooks (4) are respectively installed on the corresponding adapters (18).

6. The adjustable dual-speed release tensioner according to claim 1, characterized in that: A handle (15) is commonly mounted on the outer walls of the two fixing rings (13), and a hand grip opening (16) is provided inside the handle (15).

7. The adjustable dual-speed release tensioner according to claim 1, characterized in that: A handle (22) is installed on one side of the locking seat (1), and a protective pad is provided on the outer wall of the handle (22).

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