Tensioner

Abstract

The utility model provides a tensioner which comprises a fixed plate frame, a movable plate frame and a locking mechanism. A plurality of fixing holes are formed in the fixing plate frame and used for installing the tensioner on fixing equipment or a carrier. The penetrating holes are used for the bundling belts to penetrate through; the containing groove is used for containing the movable plate frame; the movable plate frame is rotationally connected to the fixed plate frame through a hinged shaft, a shifting plate is arranged at the end, away from the hinged shaft, of the movable plate frame, the shifting plate is used for enabling the movable plate frame to be turned inwards to be placed into the containing groove, and a winding plate for winding a binding belt is arranged on the movable plate frame; the locking mechanism comprises a protruding block and an elastic protrusion, the protruding block is arranged on the movable plate frame, and the elastic protrusion is arranged in the containing groove and used for being connected with the protruding block in a matched and buckled mode. The strainer effectively simplifies binding operation steps and enhances fixing reliability, and has the advantages of being reliable in structure, convenient to operate and capable of improving binding efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to a binding device technical field, specifically, relates to a tensioner. BACKGROUND

[0002] In logistics transportation, the tensioner as a key tool is widely used in trucks, trailers, ships and rail transportation, and undertakes the important task of cargo fixing and binding and fastening of steel, wood, pipe and other goods. The traditional goods binding method mainly relies on the knot fixing of the binding belt. This method has many defects: on the one hand, the connection structure formed by knotting is easily loosened in the transportation process under the action of external forces such as jolt, vibration, friction and other forces, which leads to binding failure, cargo displacement, falling and other accidents, and poses a serious threat to the personal safety of transport personnel and pedestrians along the way; on the other hand, the manual knotting operation steps are complicated, and need to be wound, inserted and tightened many times, which takes a long time and seriously affects the cargo loading efficiency; at the same time, when the rope needs to be unwound during unloading, it is often difficult to untie due to the tight knot, or the binding belt is worn and deformed after being untied, which cannot be reused, which not only reduces the operation convenience, but also increases the use cost. With the continuous improvement of the requirements of modern logistics industry on transportation safety and efficiency, the traditional binding method has been difficult to meet the actual demand, and more reliable and convenient tensioning technology is urgently needed. SUMMARY

[0003] The purpose of the present application is to provide a tensioner with the advantages of reliable structure, convenient operation and improved binding efficiency.

[0004] The present application provides a tensioner, comprising a fixed plate frame, a movable plate frame and a locking mechanism; the fixed plate frame is provided with a plurality of fixing holes for installing the tensioner on a fixed device or carrier, a plurality of through holes for the binding belt to pass through, and a containing groove for accommodating the movable plate frame; the movable plate frame is rotatably connected to the fixed plate frame through a hinge shaft, and the end of the movable plate frame away from the hinge shaft is provided with a lever plate, which is used to make the movable plate frame turn inward and be placed into the containing groove; the movable plate frame is provided with a winding plate for winding the binding belt; the locking mechanism comprises a protrusion and an elastic protrusion, the protrusion is arranged on the movable plate frame, and the elastic protrusion is arranged in the containing groove and used to match and connect the protrusion.

[0005] Compared with the prior art, the tensioner has the following advantages: through the cooperation of the hinged movable plate frame and the locking mechanism, the rapid winding and fixing and mechanical locking of the binding belt are realized; the overturning structure of the movable plate frame cooperates with the block buckling type locking mechanism, which not only ensures that the binding belt does not loosen and displace during transportation, but also maintains stable buckling force through the elastic block, and the design of the dial plate simplifies the locking and unlocking operation process, effectively solving the problems of poor safety and low operation efficiency existing in the traditional knotting method. The safety of goods during transportation is improved, and the operation efficiency of loading and unloading goods is also significantly improved.

[0006] In a possible implementation, the block is in a semicircular ball structure. Compared with the prior art, the mutual buckling of the block and the elastic protrusion is facilitated, and the locking efficiency is improved.

[0007] In a possible implementation, the hinge shaft is fixedly connected to the fixed plate frame, the movable plate frame is provided with a hinge hole, and the hinge hole is sleeved on the hinge shaft to form a rotating pair structure. Compared with the prior art, reliable connection and flexible rotation between the movable plate frame and the fixed plate frame are realized. The rotating pair structure formed by the cooperation of the hinge shaft and the hinge hole ensures the stability and accuracy of the rotation of the movable plate frame, reduces the shaking and deviation of the movable plate frame during use, and facilitates the installation and adjustment of the binding belt by the operator, thereby improving the use convenience of the tensioner.

[0008] In a possible implementation, the fixed plate frame is provided with a limiting protrusion for preventing the movable plate frame from over-rolling outward. Compared with the prior art, the movable plate frame is prevented from over-rolling outward. The limiting protrusion effectively controls the overturning angle of the movable plate frame, avoids damage or affects the normal use of the tensioner due to over-rolling of the movable plate frame, that is, increases the service life of the tensioner and improves the operation safety.

[0009] In a possible implementation, the fixed plate frame and the movable plate frame are both metal sheet stamping parts. Compared with the prior art, the overall strength and durability of the tensioner are improved. The fixed plate frame and the movable plate frame stamped by metal sheet have high mechanical strength and can withstand large tension and pressure, reducing the risk of deformation and damage.

[0010] In a possible implementation, the fixed plate frame and / or the movable plate frame is provided with a reinforcing rib. Compared with the prior art, the bending resistance of the sheet metal part is effectively improved. When bearing the tension of the binding belt, the reinforcing rib suppresses the local deformation of the metal plate through the rigidity of the geometric shape, so that the cooperation precision between the fixed plate frame and the movable plate frame can be maintained for a long time, and the stability of the binding belt is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 is a structural schematic diagram of the fixed panel frame;

[0012] Fig. 2 is a structural schematic diagram of the movable panel frame;

[0013] Fig. 3 is a structural schematic diagram of the fixed panel frame;

[0014] Explanation of reference signs:

[0015] 1, fixed panel frame; 11, fixing hole; 12, through hole; 13, accommodating groove; 14, limiting protrusion; 2, movable panel frame; 21, push plate; 22, winding plate; 23, hinge hole; 3, locking mechanism; 31, protrusion; 32, elastic protrusion; 4, hinge shaft. DETAILED DESCRIPTION

[0016] First of all, those skilled in the art should understand that these embodiments are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can adjust them as needed in order to adapt to specific application occasions.

[0017] In the description of the embodiments of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0018] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or it can only mean that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or it can only mean that the horizontal height of the first feature is less than that of the second feature.

[0019] In the traditional existing cargo binding technology, the binding belt forms a connection structure by artificial knotting, and its mechanical stability is subject to the frictional restraint effect of the knot. The internal stress distribution of the knot has non-uniformity, and under the action of continuous dynamic load, local contact surface is prone to slip displacement, resulting in that the pre-tightening force decays beyond the safety threshold. The operation process involves multiple cross-winding and end-tightening actions, and the operation time and the skill level of the operator are strongly correlated, and the lack of standardization affects the overall operation efficiency.

[0020] The application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Referring to Figs. 1 to 3 The embodiments of the application disclose a tensioner, comprising a fixed frame 1, a movable frame 2 and a locking mechanism 3; the fixed frame 1 is provided with a plurality of fixing holes 11 for installing the tensioner on a fixed device or carrier, a plurality of through holes 12 for the binding belt to pass through and a receiving groove 13 for accommodating the movable frame 2; the movable frame 2 is rotatably connected to the fixed frame 1 through a hinge shaft 4, and the movable frame 2 is provided with a lever 21 at an end away from the hinge shaft 4, the lever 21 is used for turning the movable frame 2 inward to be placed into the receiving groove 13, and the movable frame 2 is provided with a winding plate 22 for winding the binding belt; the locking mechanism 3 comprises a protrusion 31 and an elastic protrusion 32, the protrusion 31 is integrally arranged on the movable frame 2, and the elastic protrusion 32 is integrally arranged in the receiving groove 13 and used for matching and buckling the protrusion 31.

[0022] The fixed frame 1 is a support structure for installing the tensioner, which can be realized by a stamping metal plate, and the surface of the fixed frame 1 is provided with the fixing holes 11 for fixed connection with an external device or carrier, the through holes 12 for guiding the binding belt to pass through and the receiving groove 13 for accommodating the movable frame 2; the movable frame 2 is a rotatable component hinged to the fixed frame 1, which can be realized by a stamping metal plate, and the hinge shaft 4 is connected to realize the turning function, the winding plate 22 is used for winding the binding belt, and the lever 21 is used for manually operating the turning action; the locking mechanism 3 is an assembly for fixing the position of the movable frame 2, which can be realized by the cooperation of the protrusion 31 and the elastic protrusion 32 to realize mechanical locking, and the lever 21 is used for turning to realize buckling and releasing of the locking mechanism 3.

[0023] As can be known from the above, in use, the tensioner is first installed on a fixed device or carrier through the fixing holes 11; then the binding belt is passed through the through holes 12 on the fixed frame 1, wound to the winding plate 22 and then passed out of the through holes 12; then the operator can turn the movable frame 2 inward through the lever 21 to make it placed into the receiving groove 13 of the fixed frame 1, so as to realize the tightening and fixing of the binding belt. When the movable frame 2 is completely turned into the receiving groove 13, the locking mechanism 3 starts to play a role, the protrusion 31 buckles and locks with the elastic protrusion 32 to prevent it from being accidentally turned out. This design realizes the rapid tightening and reliable locking of the binding belt; the turning design of the movable frame 2 simplifies the tightening process of the binding belt, without the need for complex knotting operation; the design of the locking mechanism 3 ensures the stability of the movable frame 2 in the tightened state.

[0024] In the embodiment, the protrusion 31 is in a semispherical structure. The semispherical structure has a guiding effect, so that the protrusion 31 and the elastic protrusion 32 are quickly buckled, improving the locking efficiency between the two.

[0025] In the embodiment, the hinge shaft 4 is fixedly connected to the fixed plate frame 1, and the hinge hole 23 is arranged on the movable plate frame 2, and the hinge hole 23 is sleeved on the hinge shaft 4 to form a rotating pair structure. The hinge shaft 4 is fixedly connected to the fixed plate frame 1 at a predetermined position by riveting or bolt connection, and the hinge hole 23 has a gap fit with the outer diameter of the hinge shaft 4, so that the movable plate frame 2 can freely rotate around the axis of the hinge shaft 4. Specifically, the hinge shaft 4 on the fixed plate frame 1 serves as a fixed rotation axis, and the movable plate frame 2 forms a stable rotation support structure with the hinge shaft 4 through the hinge hole 23; the hinge hole 23 and the hinge shaft 4 adopt a gap fit, which not only ensures smooth rotation, but also maintains structural stability by limiting the radial displacement range.

[0026] In the embodiment, the fixed plate frame 1 is provided with a limiting protrusion 14 for preventing the movable plate frame 2 from over-rolling outward. Specifically, the limiting protrusion 14 is integrally formed with the fixed plate frame 1 by a sheet metal stamping process; when the movable plate frame 2 is rolled outward under the action of an external force, the edge of the movable plate frame 2 abuts against the contact surface of the limiting protrusion 14, effectively inhibiting the tendency of over-rolling outward.

[0027] In the embodiment, the fixed plate frame 1 and the movable plate frame 2 are both provided with reinforcing ribs. The reinforcing ribs are formed as protruding or recessed strip structures on the surface of the sheet metal by a stamping process, and the extension direction of the reinforcing ribs is perpendicular to the stress direction or forms an angle with the stress direction, effectively inhibiting plastic deformation. This design improves the strength by optimizing the material distribution without increasing the thickness of the plate, while maintaining the economy of the stamping process.

[0028] In the embodiment, the inner wall of the perforation 12 is provided with a round corner transition structure. This design effectively reduces the frictional resistance of the binding belt when moving on the inner wall of the hole, and avoids the occurrence of hooking or cutting damage of the fiber material at the right-angle edge. The round corner transition structure allows the binding belt to move smoothly during threading, especially reducing the jamming phenomenon during tensioning operation, thereby improving the operation efficiency. At the same time, the arc-shaped contact surface uniformly disperses the local stress of the binding belt, prevents material fatigue fracture caused by stress concentration, and significantly prolongs the service life of the binding belt.

[0029] In the description of the embodiments of the present application, it should be noted that in the description of the present application, the terms indicating the direction or position relationship are based on the direction or position relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or member must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0030] In the description of the application, the description of the terms "one embodiment", "some embodiments", "in this embodiment", "specific example", or "some examples" and the like means that the specific features, mechanisms, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the application. In the description, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0031] The above description is merely a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A tensioner, characterized in that, Includes a fixed plate frame, a movable plate frame, and a locking mechanism; The fixed plate frame is provided with multiple fixing holes for installing the tensioner on the fixed equipment or carrier; multiple through holes for the binding strap to pass through; and receiving grooves for accommodating the movable plate frame; The movable plate frame is rotatably connected to the fixed plate frame via a hinge shaft. The movable plate frame has a lever plate at the end away from the hinge shaft. The lever plate is used to flip the movable plate frame inward and place it into the receiving groove. The movable plate frame is provided with a winding plate for winding the binding strap. The locking mechanism includes a protrusion and an elastic protrusion. The protrusion is disposed on the movable plate frame, and the elastic protrusion is disposed in the receiving groove and used to match and fasten the protrusion.

2. The tensioner according to claim 1, characterized in that, The bump has a hemispherical structure.

3. The tensioner according to claim 1, characterized in that, The hinge shaft is fixedly connected to the fixed plate frame, and the movable plate frame is provided with a hinge hole. The hinge hole is fitted onto the hinge shaft to form a rotating pair structure.

4. The tensioner according to claim 1, characterized in that, The fixed frame is provided with a limiting protrusion to prevent the movable frame from excessively flipping outward.

5. The tensioner according to claim 1, characterized in that, Both the fixed plate frame and the movable plate frame are metal sheet metal stamping parts.

6. The tensioner according to claim 5, characterized in that, The fixed plate frame and / or movable plate frame are provided with reinforcing ribs.

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