Adjustable folding bandage ratchet tensioner

Abstract

The utility model discloses an adjustable ratchet tensioner with a folding bandage. The adjustable ratchet tensioner comprises a handle part, a blocking piece part, a fixing part, a driving part, a rotating shaft, a ratchet wheel and the bandage. The handle part and the blocking piece part are installed on the two sides of the rotating shaft respectively, the fixing part and the driving piece are arranged on the inner side of the rotating shaft, and the ratchet wheel is installed on the rotating shaft and meshed and linked with the driving piece and the blocking piece part. The rotating shaft is provided with an axial through belt groove, the binding belt is of a single continuous structure and directly penetrates into the belt groove after being folded to form a first free end and a second free end, the two free ends penetrate out of outlets in the two sides of the belt groove respectively and reversely extend to form binding sections, and the non-winding part forms a slidable adjusting section. During use, the tensioner can slide to any position along the bandage, the ratchet wheel is driven by the handle to drive the rotating shaft to rotate and wind the bandage, and bidirectional tensioning is achieved. According to the scheme, side groove design is omitted, bandage folding and groove penetrating are completed in one step, the structure is simplified, and installation is convenient; the slidable adjusting section supports full-length free movement, and the binding length limitation is broken through.

Description

An adjustable folding strap ratchet tensioner Technical Field

[0001] This application relates to the field of adjustable folding strap ratchet tensioners, and particularly to an adjustable folding strap ratchet tensioner. Background Technology

[0002] In cargo transportation, warehousing, or fixed operations, strapping is a common binding tool that relies on tensioners for quick and reliable securing. Traditional strapping tightening methods often depend on manual tightening and knotting, which suffers from insufficient tightening force and is time-consuming and labor-intensive. Therefore, ratchet-type tensioners have gradually become the mainstream solution. They use a ratchet mechanism to drive a rotating shaft to wind the strapping, achieving a progressively increasing tightening effect.

[0003] In existing technologies, such as the "ratchet-type strap tensioner" disclosed in Chinese utility model patent CN204056354U, a double-groove structure with a belt groove and a side groove is used. The two free ends of the strap are inserted into the side groove and then exited from the belt groove and wound up. Although this design solves the shortcomings of traditional manual tightening, it still has significant drawbacks: the fit between the side groove and the belt groove requires precision machining, increasing manufacturing costs; the strap needs to be inserted into the side groove and the belt groove twice, making the installation process cumbersome and resulting in a poor user experience. Summary of the Invention

[0004] The purpose of this application is to provide a tensioner with a simplified structure, convenient strap installation, and support for free position adjustment, so as to improve binding efficiency and adapt to diverse application scenarios.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] An adjustable folding strap ratchet tensioner includes a handle, a stop, a fixing part, a drive component, a rotating shaft, a ratchet, and a strap. The handle is mounted on both sides of the rotating shaft, the stop is mounted on both sides of the handle, and the fixing part is mounted on both sides of the rotating shaft, located inside the handle. The drive component is mounted on both sides of the fixing part. The ratchet is mounted on the rotating shaft, located between the handle and the fixing part. The inner ends of the drive component and the stop are engaged with the ratchet teeth of the ratchet. The handle is secured by a stop... The plate can drive a ratchet to rotate the shaft; the shaft has a groove extending axially along the shaft; the strap is a single continuous structure, which passes directly through the groove after folding, forming a first free end and a second free end at the fold; the first free end and the second free end respectively exit from the two groove outlets of the groove and extend in opposite directions to form a binding section; the part of the strap that is not wound around the shaft forms a sliding adjustable section, and the strap is tightened by moving the adjustable folding strap ratchet tensioner along the length of the strap to the target position and then rotating the shaft to wind the strap.

[0007] Furthermore, the strap is folded in half, with the first and second free ends protruding from the two slot outlets of the strap after folding. When the adjustable section is not wound, the adjustable folding strap ratchet tensioner is allowed to move freely within the entire length of the strap.

[0008] Furthermore, the straps are tightened in both directions by folding through the grooves.

[0009] Furthermore, both the first free end and the second free end are provided with hooks.

[0010] Furthermore, the portion of the strap fold that is exposed outside the groove forms a hand loop for manually pre-tightening the strap.

[0011] Furthermore, an auxiliary pull ring is provided on the handheld pull ring.

[0012] Furthermore, the auxiliary pull ring is fastened to the handheld pull ring.

[0013] Furthermore, a first guide post and a second guide post are respectively provided between the two side plates of the fixing part. The first guide post is located below the right side of the second guide post, and both the first guide post and the second guide post are used to guide the binding.

[0014] The beneficial effects of this application are as follows:

[0015] (1) This application eliminates the complex side grooves in the prior art, retaining only the through-type groove on the pivot, allowing the strap to be threaded through in a single fold. This structure significantly reduces the number of parts and processing complexity, lowers manufacturing costs, and avoids the dependence on precision machining for double-groove structures, thereby improving production efficiency and product reliability.

[0016] (2) The unwound portion of the strap in this application forms a "slidable adjustable section," allowing the adjustable folding strap ratchet tensioner to move and be fixed arbitrarily within the entire length of the strap. This design completely solves the problems of limited binding length and the need for disassembly and reassembly in the prior art, enabling the tensioner to flexibly adapt to the binding needs of goods of different sizes and significantly improving the adaptability of application scenarios.

[0017] (3) The "hand-held pull ring" and optional "auxiliary pull ring" exposed at the fold of the strap in this application provide users with a direct point of force application. After manually pre-tightening the strap, it is then tightened step by step by the ratchet mechanism, which can quickly achieve initial fixation and ensure precise control of the final binding force, taking into account both ease of operation and binding reliability.

[0018] This application utilizes a design where a single strap is folded and extends in opposite directions at both ends, naturally creating a bidirectional tension capability. Compared to existing technologies that require separate straps or complex wrapping, this application simplifies the structure while achieving a more efficient bidirectional force balance, avoiding the risk of strap misalignment or loosening. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the adjustable folding strap ratchet tensioner provided in an embodiment of this application;

[0020] Figure 2 is a top view of an adjustable folding strap ratchet tensioner provided in an embodiment of this application;

[0021] Figure 3 is a cross-sectional view of Figure 2 at point AA;

[0022] Figure 4 is a magnified view of part B in Figure 1;

[0023] Figure 5 is a schematic diagram of the adjustable folding strap ratchet tensioner provided in an embodiment of this application after the strap is hidden;

[0024] Figure 6 is a cross-sectional view of an adjustable folding strap ratchet tensioner provided in an embodiment of this application after the strap is threaded through it;

[0025] Figure 7 is a cross-sectional view of an adjustable folding strap ratchet tensioner provided in an embodiment of this application after the strap is concealed;

[0026] Explanation of reference numerals in the attached figures:

[0027] 100. Handle part; 200. Baffle part; 300. Fixing part; 400. Driving component; 500. Rotating shaft; 600. Ratchet; 700. Strap;

[0028] 110, First side plate; 210, First spring; 410, Protruding post; 420, Second spring;

[0029] 710. First free end; 720. Second free end; 730. Binding section; 740. Sliding adjustable section; 750. Hook; 760. Handheld pull ring; 770. Auxiliary pull ring; Detailed Implementation

[0030] The features and exemplary embodiments of various aspects of this application will now be described in detail. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain this application and are not configured to limit this application. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples of this application.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0032] It should be understood that when describing the structure of a component, when referring to a layer or region as being "above" or "on top of" another layer or region, it can mean that it is directly above the other layer or region, or that it contains other layers or regions between it and the other layer or region. Furthermore, if the component is flipped over, that layer or region will be located "below" or "under" the other layer or region.

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0034] As shown in Figure 1, an adjustable folding strap ratchet tensioner includes a handle part 100, a baffle part 200, a fixing part 300, a driving component 400, a rotating shaft 500, a ratchet 600, and a strap 700.

[0035] As shown in Figure 5, the first side plates on both sides of the handle portion 100 are respectively installed at both ends of the rotating shaft 500. The two sides of the baffle portion 200 are respectively installed in the first mounting grooves 120 on both sides of the handle portion 100 via the first spring 210. The two sides of the fixing portion 300 are respectively installed on the rotating shaft 500 and located inside the handle portion 100. The driving member 400 is installed on both sides of the fixing portion 300. The protrusion 410 of the driving member 400 is connected to the fixing portion 300 via the second spring 420. The ratchet 600 is respectively installed on the rotating shaft 500 and located between the handle portion 100 and the fixing portion 300. The inner ends of the driving member 400 and the baffle portion 200 are respectively engaged with the ratchet teeth of the ratchet 600. The handle portion 100 can drive the ratchet 600 to drive the rotating shaft 500 to rotate through the baffle portion 200. The rotating shaft 500 is provided with a groove 510 extending axially along the rotating shaft 500.

[0036] As shown in Figures 3, 6, and 7, the strap 700 is a single continuous structure. After being folded, it passes directly through the groove 510, forming a first free end 710 and a second free end 720 at the fold. The first free end 710 and the second free end 720 respectively exit from the two slot outlets of the groove 510 and extend in opposite directions to form a binding section 730. The portion of the strap 700 that is not wound around the shaft 500 forms a sliding adjustable section 740. By moving the adjustable folding strap ratchet tensioner along the length of the strap 700 to the target position, the shaft 500 is rotated to wind the strap 700 to achieve tension.

[0037] As shown in Figure 5, a limiting protrusion 430 is provided on the inner side of the two vertical second side plates 310 near the fixing part 300 on the upper side of the drive member 400. The limiting protrusion can restrict the drive member from disengaging from the side groove on the second side.

[0038] As shown in Figure 6, in one embodiment, the strap 700 is folded in half. The first free end 710 and the second free end 720 after folding pass through the two slot outlets of the groove 510 respectively. When the sliding adjustment section 740 is not wound, the adjustable folding strap 700 ratchet 600 tensioner is allowed to move freely within the entire length of the strap 700.

[0039] As shown in Figure 6, in one embodiment, the strap 700 achieves bidirectional tension by folding through the groove 510.

[0040] As shown in Figure 1, in one embodiment, both the first free end 710 and the second free end 720 are provided with hooks 750.

[0041] As shown in Figures 1 and 3, furthermore, the portion of the strap 700 exposed outside the groove 510 at the fold forms a hand loop 760 for manually pre-tightening the strap 700.

[0042] As shown in Figures 1 and 3, in one embodiment, an auxiliary pull ring 770 is provided on the handheld pull ring 760.

[0043] As shown in Figures 1 and 3, in one embodiment, an auxiliary pull ring 770 is looped onto a handheld pull ring 760. The auxiliary pull ring 770 has an opening, which is opened to loop the auxiliary pull ring 770 onto the handheld pull ring 760.

[0044] As shown in Figure 6, specifically, a first guide post 320 and a second guide post 330 are respectively provided between the two second side plates 310 of the fixing part 300. The first guide post 310 is located below the right side of the second guide post 330. Both the first guide post 310 and the second guide post 330 are used to guide the binding. Setting the first guide post 310 and the second guide post 330 to guide the binding strap can prevent the binding strap from interfering with the driving member 400 and the second spring 420 at the tail end of the fixing part, causing the binding strap 730 to get stuck on the second spring 420. Setting the second guide post 330 allows the binding strap 730 to avoid the second spring 420.

[0045] The working principle of this application is as follows:

[0046] A single continuous strap 700 is folded in half, and the folded end is directly inserted into the through groove 510 of the pivot 500 to form a first free end 710 and a second free end 720. The two free ends exit from the two groove outlets of the groove 510 respectively and extend in opposite directions to form a binding section 730.

[0047] The portion of the fold exposed in the groove 510 forms a hand-held pull ring 760 (or an additional auxiliary pull ring 770). Users can manually pull this ring to initially adjust the tightness of the strap 700 so that the strap 700 fits the surface of the goods.

[0048] The portion of the strap 700 not wound around the pivot 500 forms a sliding adjustable section 740. In this state, the adjustable folding strap 700 ratchet 600 tensioner can slide freely along the length of the strap 700 to the target binding position without disassembly or re-threading. This function overcomes the length limitations of traditional tensioners, adapting to the needs of goods of different sizes.

[0049] The auxiliary pull ring 770 is fixed to the hand pull ring 760 by a ring buckle or snap-fit ​​structure, which physically prevents the folded section of the strap 700 from accidentally sliding out of the groove 510, ensuring the stability of the strap 700 during adjustment.

[0050] The handle 100 reciprocates, driving the ratchet 600 to rotate unidirectionally via the linkage between the stop plate 200 and the drive member 400. When the handle is pressed down, the stop plate 200 presses against the ratchet teeth of the ratchet 600, pushing the ratchet 600 to rotate the shaft 500 and wind the strap 700. When the handle returns to its original position, the drive member 400 of the fixing part 300 presses against the ratchet teeth, preventing the shaft 500 from reversing, ensuring that the strap 700 can only tighten in one direction.

[0051] The two free ends (first free end 710 and second free end 720) formed after the strap 700 is folded extend in opposite directions and are fixed to both sides of the cargo respectively. When the swivel 500 is wound, the two free ends are simultaneously tightened by force, achieving bidirectional tension and preventing unilateral deviation or loosening. The hooks 750 set on the free ends can be directly hooked to the cargo fixing points (such as hooks or holes), enhancing the reliability of the binding.

[0052] Once the strap 700 reaches the required tension, stop operating the handle. The ratchet 600 mechanism automatically locks the rotating shaft 500 to maintain the tension of the strap 700.

[0053] When it is necessary to release the strap 700, press the unlocking device of the clamp or the baffle 200 to release the ratchet 600 lock, and rotate the shaft 500 in the opposite direction to release the wound strap 700.

[0054] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0055] The devices or elements referred to in the embodiments of this application or implied herein must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of this application. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0056] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “may include” and “have,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them. Although the embodiments of this application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An adjustable folding strap ratchet tensioner, comprising a handle, a baffle, a fixing part, a drive component, a rotating shaft, a ratchet, and a strap; the two sides of the handle are respectively mounted on both ends of the rotating shaft, the two sides of the baffle are respectively mounted on both sides of the handle, the two sides of the fixing part are respectively mounted on the rotating shaft and located inside the handle, the drive component is mounted on both sides of the fixing part, the ratchet is respectively mounted on the rotating shaft and located between the handle and the fixing part, the inner ends of the drive component and the baffle are respectively engaged with the ratchet teeth of the ratchet, the handle can drive the ratchet through the baffle to drive the rotating shaft to rotate; the rotating shaft is provided with a groove extending axially along the rotating shaft; characterized in that: The strap is a single continuous structure. After being folded, it passes directly through the groove, forming a first free end and a second free end at the fold. The first free end and the second free end exit from the two slot outlets of the groove and extend in opposite directions to form a binding section. The portion of the strap that is not wound around the shaft forms a sliding adjustable section. The strap is tightened by moving the adjustable folding strap ratchet tensioner along the length of the strap to the target position and then rotating the shaft to wind the strap.

2. The adjustable folding strap ratchet tensioner according to claim 1, characterized in that: The strap is folded in half, with the first and second free ends protruding from the two slotted outlets respectively after folding. When the adjustable section is not wound, the adjustable folding strap ratchet tensioner is allowed to move freely within the entire length of the strap.

3. The adjustable folding strap ratchet tensioner according to claim 1, characterized in that: The straps are tightened in both directions by folding through the grooves.

4. The adjustable folding strap ratchet tensioner according to claim 1, characterized in that: Both the first free end and the second free end are provided with hooks.

5. An adjustable folding strap ratchet tensioner according to claim 1, characterized in that: The portion of the strap folded outwards from the groove forms a hand loop for manually pre-tightening the strap.

6. An adjustable folding strap ratchet tensioner according to claim 5, characterized in that: An auxiliary pull ring is provided on the handheld pull ring.

7. An adjustable folding strap ratchet tensioner according to claim 6, characterized in that: The auxiliary pull ring is fastened to the hand pull ring.

8. An adjustable folding strap ratchet tensioner according to claim 1, characterized in that: A first guide post and a second guide post are respectively provided between the two side plates of the fixing part. The first guide post is located below the right side of the second guide post. Both the first guide post and the second guide post are used to guide the binding.

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