Tensioner structure

Abstract

The utility model relates to the technical field of tensioner, and disclose a kind of tensioner structure, it includes first frame, second frame, belt shaft spare and ratchet, the first frame and second frame are rotatably connected by belt shaft spare, first frame and second frame can rotate around belt shaft spare, second frame is located in the inside of first frame, the outer end both sides of belt shaft spare are all sleeved with ratchet, and the ratchet of both sides is located the outside both sides end of first frame respectively;The utility model, by the ratchet being arranged in the outside both sides end of first frame, so that only inside surface and first frame rub in the rotation process, and the design of convex ring is adopted, effectively reduce the friction area between ratchet and frame, reduce friction force, compared with traditional ratchet built-in, double-sided friction, the ratchet external mode of the device, single-sided friction stress, and the design of convex ring, reduce friction force, so that tensioner is more smooth in the process of loosening, improve use efficiency and operation experience.

Description

Technical Field

[0001] This utility model belongs to the field of tensioner technology, specifically a tensioner structure. Background Technology

[0002] Tensioners are widely used tools in various scenarios for tightening, fixing, or adjusting the position of objects. Existing tensioners typically employ a structure combining a ratchet and a rotating frame, but this design presents several problems in practical use. For example, the ratchet is usually located between the first and second rotating frames, resulting in double-sided friction and a large frictional area. This leads to significant frictional force, resulting in poor smoothness during release, impacting user experience and work efficiency. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the prior art, this utility model provides a tensioner structure that effectively solves the problems mentioned in the background.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a tensioner structure, comprising a first frame, a second frame, a belt shaft, and ratchet wheels, wherein the first frame and the second frame are rotatably connected by the belt shaft, the first frame and the second frame are rotatable around the belt shaft, the second frame is located inside the first frame, and ratchet wheels are sleeved on both sides of the outer end of the belt shaft, with the ratchet wheels on both sides located on the outer two sides of the first frame respectively.

[0005] One end of the first frame is connected to a handle, and the inner sides of the first frame are connected to a reinforcing rod. Both sides of the first frame are provided with first guide grooves. A guide plate is slidably provided inside the first guide groove. A torsion spring hole is provided on one side of the surface of the guide plate. Limit grooves are symmetrically provided on the inner side wall of the first guide groove. A positioning protrusion is formed between the two limit grooves. A torsion spring is sleeved on the outside of the positioning protrusion. The other end of the torsion spring is located in the torsion spring hole.

[0006] One end of the second frame is connected to a connecting rod. The middle of the second frame is provided with a folded edge. A through hole is opened on the surface of the folded edge. Both sides of the second frame are provided with second guide grooves. A clamping plate is slidably connected inside the second guide groove. One end of the clamping plate is connected to a protruding rod. The upper part of the protruding rod is located in the through hole. A spring is sleeved on the outside of the protruding rod.

[0007] Preferably, the shaft component includes two symmetrically arranged semi-arc shafts, each with a pin hole at both ends, and the same locking pin is inserted into the two pin holes on the same side.

[0008] Preferably, the surface of the ratchet is symmetrically provided with semi-circular holes, and the two semi-circular shafts are respectively inserted into the two semi-circular holes.

[0009] Preferably, the first frame and the second frame are provided with rotating holes at the corresponding shaft connection points, and the outer walls of the rotating holes on the first frame and the second frame are connected with convex rings.

[0010] Preferably, the surface of the grip is covered with a rubber sleeve, and the surface of the rubber sleeve is provided with anti-slip texture.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention, by placing the ratchet on both outer ends of the first frame, ensures that only the inner side rubs against the first frame during rotation. The use of a raised ring design effectively reduces the frictional area between the ratchet and the frame, thus lowering the frictional force. Compared to traditional ratchet-mounted designs with double-sided friction, this device's externally mounted ratchet, with single-sided friction and the raised ring design, further reduces friction, making the tensioner smoother during release and improving efficiency and user experience. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the sleeve structure of the shaft and ratchet of this utility model;

[0017] Figure 3 This is an exploded view of the present invention;

[0018] Figure 4 This is a schematic diagram of the connection structure of the convex ring of this utility model;

[0019] In the diagram: 1. First frame; 2. Second frame; 3. Frame with shaft; 31. Semi-arc shaft; 32. Pin hole; 33. Locking pin; 4. Ratchet; 41. Semi-arc hole; 5. Grip bar; 6. Reinforcing bar; 7. First guide groove; 8. Guide plate; 9. Torsion spring hole; 10. Limiting groove; 11. Positioning protrusion; 12. Torsion spring; 13. Connecting rod; 14. Folded edge; 15. Through hole; 16. Second guide groove; 17. Clamping plate; 18. Protruding rod; 19. Spring; 20. Rotating hole; 21. Protruding ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Example 1, by Figures 1-4 As shown, this utility model includes a first frame 1, a second frame 2, a belt shaft 3, and ratchet 4. The first frame 1 and the second frame 2 are rotatably connected by the belt shaft 3. The first frame 1 and the second frame 2 can rotate around the belt shaft 3. The second frame 2 is located inside the first frame 1. Both sides of the outer end of the belt shaft 3 are fitted with ratchet 4, and the ratchet 4 on both sides are located on the outer two sides of the first frame 1, respectively.

[0022] One end of the first frame 1 is connected to a handle 5, and a reinforcing rod 6 is connected between the inner sides of the first frame 1. Both sides of the first frame 1 are provided with first guide grooves 7. A guide plate 8 is slidably provided inside the first guide groove 7. A torsion spring hole 9 is provided on one side of the surface of the guide plate 8. Limiting grooves 10 are symmetrically provided on the inner side wall of the first guide groove 7. A positioning protrusion 11 is formed between the two limiting grooves 10. A torsion spring 12 is sleeved on the outside of the positioning protrusion 11. The other end of the torsion spring 12 is located in the torsion spring hole 9.

[0023] One end of the second frame 2 is connected to a connecting rod 13. The middle part of the second frame 2 is provided with a folded edge 14. A through hole 15 is opened on the surface of the folded edge 14. Both sides of the second frame 2 are provided with second guide grooves 16. A clamping plate 17 is slidably connected inside the second guide groove 16. One end of the clamping plate 17 is connected to a protruding rod 18. The upper part of the protruding rod 18 is located inside the through hole 15. A spring 19 is sleeved on the outside of the protruding rod 18.

[0024] The shaft component 3 includes two symmetrically arranged semi-arc shafts 31. Both ends of the two semi-arc shafts 31 are provided with pin holes 32, and the same locking pin 33 is inserted into the two pin holes 32 on the same side.

[0025] The surface of the ratchet 4 is symmetrically provided with semi-circular holes 41, and the two semi-circular shafts 31 are respectively inserted into the two semi-circular holes 41.

[0026] Rotating holes 20 are provided at the corresponding shaft connections of the first frame 1 and the second frame 2. The outer walls of the rotating holes 20 on the first frame 1 and the second frame 2 are connected with protruding rings 21. By setting the protruding rings 21, the friction area between the contact surfaces of the second frame 2 and the first frame 1, and between the first frame 1 and the ratchet 4 is reduced, thereby reducing the friction force and making the release process of the device smoother.

[0027] The surface of the grip 5 is covered with a rubber sleeve, and the surface of the rubber sleeve has anti-slip texture.

[0028] Working principle:

[0029] When using the tensioner of this utility model, the operator first holds the handle 5 and applies force through the handle 5 to make the first frame 1 and the second frame 2 rotate relative to each other around the belt shaft 3. At this time, the ratchet 4 on the belt shaft 3 interacts with the locking plate 17 on the second frame 2 to achieve the function of tightening or loosening.

[0030] When tightening is required, the operator applies force to make the first frame 1 swing back and forth towards the second frame 2, causing the guide plate 8 to drive the ratchet 4 to rotate. The ratchet 4 cooperates with the semi-circular shaft 31 on the belt shaft 3 through the semi-circular hole 41, thereby causing the belt shaft 3 to gradually rotate and tighten the inserted strap. The clamping plate 17 is in close contact with the tooth surface of the ratchet 4 under the action of the spring 19, so that the ratchet 4 can effectively prevent reverse rotation, thereby realizing the tightening function.

[0031] When it is necessary to loosen, the operator lifts the guide plate 8 and then rotates the first frame 1 so that the first frame 1 and the second frame 2 are horizontal. At this time, the guide plate 8 is inserted into the corresponding slot on the second frame 2, and then the strap is pulled out to achieve the loosening function.

[0032] The tensioner of this device positions the ratchet 4 on both outer sides of the first frame 1, so that only the inner side rubs against the first frame 1 during rotation. At the same time, the design of the convex ring 21 reduces the friction area, making the loosening process smoother and improving the performance of the tensioner.

Claims

1. A tensioner structure, comprising a first frame (1), a second frame (2), a belt shaft (3), and a ratchet (4), characterized in that: The first frame (1) and the second frame (2) are rotatably connected by a belt shaft (3). The first frame (1) and the second frame (2) can rotate around the belt shaft (3). The second frame (2) is located inside the first frame (1). Both sides of the outer end of the belt shaft (3) are fitted with ratchet wheels (4). The ratchet wheels (4) on both sides are located on the outer two sides of the first frame (1). One end of the first frame (1) is connected to a handle (5), and a reinforcing rod (6) is connected between the inner sides of the first frame (1). The two side walls of the first frame (1) are provided with first guide grooves (7). A guide plate (8) is slidably provided inside the first guide groove (7). A torsion spring hole (9) is provided on one side of the surface of the guide plate (8). Limiting grooves (10) are symmetrically provided on the inner side wall of the first guide groove (7). A positioning protrusion (11) is formed between the two limiting grooves (10). A torsion spring (12) is sleeved on the outside of the positioning protrusion (11). The other end of the torsion spring (12) is located in the torsion spring hole (9). One end of the second frame (2) is connected to a connecting rod (13). The middle part of the second frame (2) is provided with a folded edge (14). A through hole (15) is opened on the surface of the folded edge (14). The two side walls of the second frame (2) are provided with second guide grooves (16). A card plate (17) is slidably connected inside the second guide groove (16). One end of the card plate (17) is connected to a protruding rod (18). The upper part of the protruding rod (18) is located in the through hole (15). A spring (19) is sleeved on the outside of the protruding rod (18).

2. The tensioner structure according to claim 1, characterized in that: The shaft component (3) includes two symmetrically arranged semi-arc shafts (31), and pin holes (32) are opened at both ends of the two semi-arc shafts (31). The same locking pin (33) is inserted into the two pin holes (32) on the same side.

3. The tensioner structure according to claim 1, characterized in that: The surface of the ratchet (4) is symmetrically provided with semi-circular holes (41), and two semi-circular shafts (31) are respectively inserted into the two semi-circular holes (41).

4. The tensioner structure according to claim 1, characterized in that: The first frame (1) and the second frame (2) are provided with rotating holes (20) at the corresponding shaft parts (3), and the outer walls of the rotating holes (20) on the first frame (1) and the second frame (2) are connected with convex rings (21).

5. A tensioner structure according to claim 1, characterized in that: The surface of the grip (5) is covered with a rubber sleeve, and the surface of the rubber sleeve is provided with anti-slip texture.

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