Binding belt mechanism for binding belt strainer and binding belt strainer

Abstract

The lacing mechanism comprises a clamping assembly, the clamping assembly comprises a clamping frame, a clamping torsional spring and a clamping body, the clamping frame is rotationally connected to a driving arm of the lacing tensioner, one end of the clamping torsional spring abuts against the driving arm of the lacing tensioner, the other end of the clamping torsional spring abuts against the clamping frame, and the clamping body is arranged on the clamping frame. The clamping body is fixedly arranged at one end of the clamping frame, and when the clamping assembly clamps and fixes the redundant braid, the clamping body clamps and fixes the redundant braid to the bridle tensioner; the fixing assembly comprises one or two fixing rods, the fixing rods are matched with the driving arms of the strap tensioner in a sliding mode, the clamping frame rotates towards the driving arms away from the strap tensioner to a set position, and when the clamping torsional spring drives the clamping frame to rotate towards the driving arms close to the strap tensioner to reset, the fixing rods abut against the clamping frame so that the clamping frame can not reset. The device has the effect of storing and fixing redundant braid long heads.

Description

Technical Field

[0001] This application relates to the field of tensioners, and more particularly to a strap tensioner mechanism and a strap tensioner for use in strap tensioners. Background Technology

[0002] Cable tie tensioners are commonly used tools in logistics packaging, cargo securing, and outdoor equipment. They apply tension and lock the cable ties (such as nylon cable ties, steel straps, or plastic straps) with mechanical force to ensure the stability of goods during transportation or storage and prevent loosening or displacement caused by vibration or impact.

[0003] Current strap tensioners generally include a base, a main shaft, a drive arm, and a ratchet assembly. The base is rotatably connected to the main shaft, and the drive arm is rotatably connected to the main shaft. The main shaft has a tightening groove through which the webbing can be threaded. The ratchet assembly is located on the main shaft and is used to tighten the webbing by driving the main shaft to rotate through the ratchet assembly when the drive arm rotates in one direction, while keeping the main shaft from easily rotating and loosening the tightening of the webbing.

[0004] Regarding the aforementioned technologies, after securing the goods, the excess long ends of the webbing are not fixed and are usually knotted. However, when the bundled goods are untied, the knotted long ends of the webbing are prone to loosening and scattering, which poses a significant safety hazard. Summary of the Invention

[0005] In order to store and secure excess webbing ends, this application provides a strap tensioning mechanism and a strap tensioner for a strap tensioner.

[0006] This application provides a strapping mechanism and strapping tensioner for a strapping tensioner, which adopts the following technical solution:

[0007] A strap tensioner mechanism includes a clamping assembly and a fixing assembly. The clamping assembly includes a clamping frame, a clamping torsion spring, and a clamping body. The clamping frame is rotatably connected to the drive arm of the strap tensioner. One end of the clamping torsion spring abuts against the drive arm of the strap tensioner, and the other end of the clamping torsion spring abuts against the clamping frame. The clamping body is fixedly disposed at one end of the clamping frame. When the clamping assembly clamps and fixes excess webbing, the clamping body clamps and fixes the excess webbing to the strap tensioner.

[0008] The fixing component includes one or two fixing rods, which are slidably engaged with the drive arm of the strap tensioner. The clamping frame rotates to a set position away from the drive arm of the strap tensioner. When the clamping torsion spring drives the clamping frame to rotate back to the drive arm closer to the strap tensioner, the fixing rod abuts against the clamping frame so that the clamping frame cannot be reset.

[0009] By adopting the above technical solution, when the strapping mechanism clamps and fixes excess webbing, the clamping frame rotates to a set position away from the drive arm of the strapping tensioner. When the clamping torsion spring drives the clamping frame to rotate and reset towards the drive arm of the strapping tensioner, the fixing rod abuts against the clamping frame, preventing the clamping frame from resetting. Then, the excess webbing is wound up with the strapping tensioner, and then the fixing component is unlocked, so that the clamping torsion spring drives the clamping frame to reset until the clamping body clamps and fixes the excess webbing to the strapping tensioner, thereby completing the clamping and fixing of the excess webbing. This improves the problem that after fixing the goods, the long ends of the excess webbing are not fixed. Generally, they are knotted, but after the tied goods are untied, the knotted long ends of the webbing are easy to loosen and flutter, and the fluttering webbing poses a high safety hazard.

[0010] Optionally, the fixing component further includes push blocks, the number of which is the same as the number of fixing rods. The push blocks slide to engage with the drive arm of the strap tensioner, and the push blocks are fixedly connected to the fixing rods. When the push blocks are pressed, the push blocks drive the fixing rods to slide, and the fixing component is unlocked so that the clamping frame is reset.

[0011] Optionally, the fixing assembly further includes a return spring, which is disposed on the drive arm of the strap tensioner. The return spring is connected to the fixing rod and is used to drive the fixing rod to return to its original position, so that when the clamping torsion spring drives the clamping frame to rotate and return to its original position toward the drive arm of the strap tensioner, the fixing rod abuts against the clamping frame.

[0012] Optionally, the fixing rod has an inclined surface on one side. When the clamping frame rotates away from the drive arm of the strap tensioner and abuts against the inclined surface, the clamping frame pushes the fixing rod to slide through the inclined surface, thereby unlocking the fixing assembly.

[0013] Optionally, the fixing component further includes one or more limiting blocks, which are fixedly disposed on the drive arm of the strap tensioner. When the reset spring pushes the fixing rod to reset, the pushing block abuts against the limiting block.

[0014] Optionally, the push block is engraved with a friction texture to make it easier to press.

[0015] Optionally, the clamping body is fixedly provided with a number of fixing protrusions on the side facing the strap tensioner. When the clamping body clamps and fixes the excess webbing to the strap tensioner, each of the fixing protrusions abuts against the webbing.

[0016] A strap tensioner includes a base, a main shaft, a drive arm, and a ratchet assembly. The base and the drive arm are rotatably connected to the main shaft. The main shaft has a tightening groove. The ratchet assembly includes a drive ratchet, a limiting pawl, a limiting spring, a drive pawl, and a drive spring. The drive ratchet is coaxially mounted on the main shaft. The limiting pawl is slidably engaged with the base and meshes with the drive ratchet. One end of the limiting spring is connected to the limiting pawl, and the other end is connected to the base. The drive pawl is slidably engaged with the drive arm and meshes with the drive ratchet. One end of the drive spring is connected to the drive pawl, and the other end is connected to the drive arm. When the drive arm rotates away from the base, the drive pawl drives the drive ratchet to rotate.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] When the strapping mechanism clamps and secures excess webbing, the clamping frame rotates to a set position away from the drive arm of the strapping tensioner. When the clamping torsion spring drives the clamping frame to rotate and reset towards the drive arm of the strapping tensioner, the fixing rod abuts against the clamping frame, preventing the clamping frame from resetting. Then, the excess webbing is wound up to the strapping tensioner. Next, the fixing component unlocks, allowing the clamping torsion spring to drive the clamping frame to reset until the clamping body clamps and secures the excess webbing to the strapping tensioner, thus completing the clamping and securing of the excess webbing. This improves the problem that after securing goods, the long ends of excess webbing are not secured. Usually, they are knotted, but after the bundled goods are untied, the knotted long ends of the webbing are prone to loosening and scattering, which poses a high safety hazard. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the strap tensioner structure applied to the strap tensioner according to an embodiment of this application;

[0020] Figure 2 This is a schematic diagram of the overall structure of the strap tensioner according to an embodiment of this application;

[0021] Figure 3 This is an unfolded view of the overall structure of the strap tensioner according to an embodiment of this application;

[0022] Figure 4 This is a schematic diagram of the base structure according to an embodiment of this application;

[0023] Figure 5 This is a schematic diagram of the drive arm structure according to an embodiment of this application;

[0024] Figure 6 This is a schematic diagram of the overall structure of the strapping mechanism according to an embodiment of this application;

[0025] Figure 7This is a schematic diagram of the clamping component structure according to an embodiment of this application;

[0026] Figure 8 This is a schematic diagram of the fixed component structure in an embodiment of this application.

[0027] Explanation of reference numerals in the attached drawings: 11, base; 111, snap-fit ​​groove; 12, main shaft; 121, tightening groove; 13, drive arm; 14, ratchet assembly; 141, drive ratchet; 142, limit pawl; 143, drive pawl;

[0028] 21. Clamping assembly; 211. Clamping frame; 212. Clamping torsion spring; 213. Clamping body; 2131. Fixing protrusion; 22. Fixing assembly; 221. Fixing rod; 2211. Inclined surface; 222. Push block; 2221. Friction texture; 223. Return spring; 224. Limiting block;

[0029] 1. Strap tensioner; 2. Strap mechanism. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0031] This application discloses a strap tensioning mechanism and a strap tensioner for a strap tensioner. (Refer to...) Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 A strap tensioner includes a base 11, a main shaft 12, a drive arm 13, and a ratchet assembly 14. The base 11 is rotatably connected to the main shaft 12, and the drive arm 13 is rotatably connected to the main shaft 12. The main shaft 12 has a tightening groove 121, and the base 11 has a snap-fit ​​groove 111. The ratchet assembly 14 includes two drive ratchet wheels 141, a limiting pawl 142, a limiting spring, a drive pawl 143, and a drive spring. The two drive ratchet wheels 141 are coaxially arranged at both ends of the main shaft 12. The limiting pawl 142 is slidably engaged with the base 11, and the limiting pawl 142 is engaged with the drive arm 13. The moving ratchet 141 is engaged, one end of the limiting spring is connected to the limiting pawl 142 (not shown in the figure), and the other end of the limiting spring is connected to the base 11. The driving pawl 143 slides and engages with the driving arm 13. The driving pawl 143 is engaged with the driving ratchet 141, and one end of the driving spring is connected to the driving pawl 143 (not shown in the figure). The other end of the driving spring is connected to the driving arm 13. When the driving arm 13 is close to the base 11 and does not need to rotate, the driving pawl 143 passes through and engages with the engaging groove 111, so that the driving arm 13 and the base 11 are not easily separated.

[0032] The implementation principle of a strap tensioner according to an embodiment of this application is as follows: When the webbing needs to be tightened, the webbing is threaded into the tightening groove 121, and the drive pawl 143 is pulled to cause the drive pawl to slide away from the locking groove 111 and disengage from the locking groove 111. The drive arm 13 rotates away from the base 11 to the set unfolded position. The drive spring drives the drive pawl 143 to reset, and the drive arm 13 rotates away from the base 11. The drive pawl 143 drives the two drive ratchet wheels 141 to rotate, and the two drive ratchet wheels 141 drive the main shaft 12 to rotate. Then the drive arm 13 moves closer to the base 11. The base 11 rotates to a set position to tighten the webbing once. The drive arm 13 reciprocates until the webbing is tightened to the required degree. The drive arm 13 then rotates towards the base 11 until it is in contact with the base 11. The drive pawl 143 then passes through and engages with the engagement groove 111, thus tightening the webbing. When the webbing needs to be loosened, the limiting pawl 142 is pulled, disengaging it from the drive ratchet 141 and pulling the webbing to loosen it.

[0033] Reference Figure 1 and Figure 6 A strap tensioner includes a clamping assembly 21 and a fixing assembly 22, both of which are disposed on the drive arm 13 of the strap tensioner 1.

[0034] Reference Figure 7 The clamping assembly 21 includes a clamping frame 211, a clamping torsion spring 212, and a clamping body 213. The clamping frame 211 is rotatably connected to the drive arm 13 of the strap tensioner 1. The clamping torsion spring 212 is located between the clamping frame 211 and the drive arm 13 of the strap tensioner 1. One end of the clamping torsion spring 212 abuts against the drive arm 13 of the strap tensioner 1, and the other end of the clamping torsion spring 212 abuts against the clamping frame 211. The clamping body 213 is fixedly disposed at one end of the clamping frame 211 and clamps... When component 21 clamps and fixes excess webbing, clamping body 213 clamps and fixes the excess webbing to the drive pawl 143 of the strap tensioner 1. Several fixing protrusions 2131 are fixedly provided on the side of clamping body 213 facing the drive pawl 143 of strap tensioner 1. When clamping body 213 clamps and fixes excess webbing to strap tensioner 1, each fixing protrusion 2131 abuts against the webbing, thereby making the clamping body 213 clamp and fix the webbing more stable.

[0035] Reference Figure 8The fixing component 22 includes two fixing rods 221, two pushing blocks 222, and a return spring 223. The two fixing rods 221 are slidably engaged with the drive arm 13 of the strap tensioner 1. The two fixing rods 221 can slide towards each other or away from each other. When the two fixing rods 221 slide away from each other, the two fixing rods 221 slide towards the sides of the clamping frame 211 respectively. The two pushing blocks 222 are slidably engaged with the drive arm 13 of the strap tensioner 1, and the two pushing blocks 222 are fixedly connected to the two fixing rods 221 respectively. The return spring 223 is located between the two fixing rods 221. The two ends of the return spring 223 are connected to the two fixing rods 221 respectively. An inclined surface 2211 is provided on one side of each of the two fixing rods 221.

[0036] Reference Figure 8 The fixing component 22 also includes two limiting blocks 224. The limiting blocks 224 are fixedly mounted on the drive arm 13 of the strap tensioner. When the reset spring 223 pushes the fixing rod 221 to reset, the pushing block 222 abuts against the limiting block 224. The pushing block 222 is engraved with friction texture 2221 so that the pushing block 222 is easier to press.

[0037] The implementation principle of a strap tensioner according to an embodiment of this application is as follows: When the strap tensioner 2 clamps and fixes excess webbing, the clamping frame 211 rotates toward the drive arm 13 away from the strap tensioner 1 until both sides of the clamping frame 211 abut against the two inclined surfaces 2211 respectively. The clamping frame 211 thereby pushes the two fixing rods 221 to slide toward each other, so that the fixing component 22 is unlocked and the clamping frame 211 is fully extended. Then, the return spring 223 pushes the two fixing rods 221 to slide away from each other, so that the fixing component 22 is relocked. When the clamping torsion spring 212 drives the clamping frame 211 to rotate and reset toward the drive arm 13 closer to the strap tensioner 1, both fixing rods 221 abut against the clamping frame 211. This prevents the clamping frame 211 from resetting, allowing the user to easily wind up the excess webbing into the drive pawl 143 of the strap tensioner 1. After the user finishes winding up the excess webbing, they simultaneously press the two push blocks 222. The two push blocks 222 drive the two fixing rods 221 to slide towards each other, thereby unlocking the fixing component 22 and resetting the clamping frame 211. Thus, the clamping body 213 clamps and fixes the excess webbing, improving the problem that after securing goods, the long ends of the excess webbing are not fixed. They are usually knotted, but after the goods are untied, the knotted long ends of the webbing are easy to loosen and scatter, which poses a high safety hazard.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A strapping mechanism for a strapping tensioner, characterized in that: The device includes a clamping assembly (21) and a fixing assembly (22). The clamping assembly (21) includes a clamping frame (211), a clamping torsion spring (212), and a clamping body (213). The clamping frame (211) is rotatably connected to the drive arm (13) of the strap tensioner (1). One end of the clamping torsion spring (212) abuts against the drive arm (13) of the strap tensioner (1), and the other end of the clamping torsion spring (212) abuts against the clamping frame (211). The clamping body (213) is fixedly disposed at one end of the clamping frame (211). When the clamping assembly (21) clamps and fixes excess webbing, the clamping body (213) clamps and fixes the excess webbing to the strap tensioner (1). The fixing component (22) includes one or two fixing rods (221), which are slidably engaged with the drive arm (13) of the strap tensioner (1). The clamping frame (211) rotates to a set position away from the drive arm (13) of the strap tensioner (1). When the clamping torsion spring (212) drives the clamping frame (211) to rotate back to the drive arm (13) closer to the strap tensioner (1), the fixing rod (221) abuts against the clamping frame (211) so that the clamping frame (211) cannot be reset.

2. The strapping mechanism for a strapping tensioner according to claim 1, characterized in that: The fixing component (22) also includes a push block (222), the number of which is the same as the number of fixing rods (221). The push block (222) slides and engages with the drive arm (13) of the strap tensioner (1), and the push block (222) is fixedly connected to the fixing rod (221). When the push block (222) is pressed, the push block (222) drives the fixing rod (221) to slide, and the fixing component (22) is unlocked so that the clamping frame (211) is reset.

3. A strapping mechanism for a strapping tensioner according to claim 2, characterized in that: The fixing assembly (22) further includes a return spring (223), which is disposed on the drive arm (13) of the strap tensioner (1). The return spring (223) is connected to the fixing rod (221) and is used to drive the fixing rod (221) to return to its original position, so that when the clamping torsion spring (212) drives the clamping frame (211) to rotate and return to its original position toward the drive arm (13) near the strap tensioner (1), the fixing rod (221) abuts against the clamping frame (211).

4. A strapping mechanism for a strapping tensioner according to claim 3, characterized in that: The fixing rod (221) has an inclined surface (2211) on one side. When the clamping frame (211) rotates away from the drive arm (13) of the strap tensioner and abuts against the inclined surface (2211), the clamping frame (211) pushes the fixing rod (221) to slide through the inclined surface (2211) so that the fixing component (22) is unlocked.

5. A strapping mechanism for a strapping tensioner according to claim 3, characterized in that: The fixing component (22) further includes one or more limiting blocks (224), which are fixedly mounted on the drive arm (13) of the strap tensioner (1). When the reset spring (223) pushes the fixing rod (221) to reset, the push block (222) abuts against the limiting block (224).

6. A strapping mechanism for a strapping tensioner according to claim 2, characterized in that: The push block (222) is engraved with friction texture (2221) to make the push block (222) easier to press.

7. A strapping mechanism for a strapping tensioner according to claim 1, characterized in that: The clamping body (213) is fixedly provided with a number of fixed protrusions (2131) on the side facing the strap tensioner (1). When the clamping body (213) clamps and fixes the excess webbing to the strap tensioner (1), each of the fixed protrusions (2131) abuts against the webbing.

8. A strap tensioner, characterized in that: The assembly includes a strapping mechanism as described in any one of claims 1 to 7, a base (11), a main shaft (12), a drive arm (13), and a ratchet assembly (14). The base (11) is rotatably connected to the main shaft (12), and the drive arm (13) is rotatably connected to the main shaft (12). The main shaft (12) has a tightening groove (121). The ratchet assembly (14) includes a drive ratchet (141), a limiting pawl (142), a limiting spring, a drive pawl (143), and a drive spring. The drive ratchet (141) is coaxially disposed on the main shaft (12), and the limiting pawl (142) is slidably engaged with the base (11). 1), and the limiting pawl (142) engages with the driving ratchet (141), one end of the limiting spring is connected to the limiting pawl (142), the other end of the limiting spring is connected to the base (11), the driving pawl (143) slides and engages with the driving ratchet (141), one end of the driving spring is connected to the driving pawl (143), the other end of the driving spring is connected to the driving arm (13), when the driving arm (13) rotates away from the base (11), the driving pawl (143) drives the driving ratchet (141) to rotate.

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