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; 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 movable clamping block, a clamping groove and an elastic piece, the movable clamping block is movably connected to the movable plate frame, the clamping groove is formed in the containing groove and used for allowing the movable clamping block to be clamped in a matched mode, and the elastic piece is installed on the movable plate frame and used for driving the movable clamping block to move towards the clamping groove. 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 goods such as steel, wood and pipe. The traditional binding method mainly relies on knotting and fixing of the binding belt. This method has many defects: on the one hand, the connection structure formed by knotting is easily loosened by external forces such as jolt, vibration and friction during transportation, 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 several times, which takes a long time and seriously affects the cargo loading efficiency; at the same time, when unloading is needed, the line is often difficult to untie due to tight knot, or the binding belt is worn and deformed after being untied, which cannot be reused, thus reducing the operation convenience and increasing 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 mounting 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 for turning the movable plate frame inward and placing it into the containing groove; the movable plate frame is provided with a winding plate for winding the binding belt; the locking mechanism comprises a movable clamping block, a clamping groove and a spring, the movable clamping block is movably connected to the movable plate frame, the clamping groove is opened in the containing groove and is used for clamping the movable clamping block, and the spring is installed on the movable plate frame and used for driving the movable clamping block to move towards the clamping groove.

[0005] Compared with the prior art, the tensioner has the following advantages: through the cooperation of the hinged movable 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 frame cooperates with the clamping type locking mechanism, which not only ensures that the binding belt does not loosen and displace during transportation, but also maintains stable locking force through the elastic member, 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, a guide sliding groove is arranged on the movable frame, and the movable clamping block is slidingly connected in the guide sliding groove. Compared with the prior art, the stable movement of the movable clamping block on the movable frame is realized. The guide sliding groove provides a stable movement track for the movable clamping block, limits the degree of freedom of the movable clamping block, and enables the movable clamping block to move only in a preset direction, thereby avoiding deviation or jamming of the movable clamping block during movement, and improving the reliability and service life of the locking mechanism.

[0007] In a possible implementation, the elastic member is an elastic rod, one end of the elastic rod is connected with the movable clamping block, and the other end of the elastic rod abuts against the groove bottom of the guide sliding groove. Compared with the prior art, the automatic reset function of the movable clamping block is realized. The elastic rod can continuously provide a pushing force of the movable clamping block towards the clamping groove, so that the movable clamping block can automatically return to the locking position after the external force disappears.

[0008] In a possible implementation, the hinge shaft is fixedly connected to the fixed frame, the movable 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, the reliable connection and flexible rotation between the movable frame and the fixed 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 frame, reduces the shaking and deviation of the movable frame during use, and further facilitates the installation and adjustment of the binding belt by the operator, thereby improving the use convenience of the tensioner.

[0009] In a possible implementation, a winding drum for winding the binding belt is further sleeved on the hinge shaft. Compared with the prior art, the contact area between the binding belt and the tensioner is increased, and the stability and reliability of the binding are improved.

[0010] In a possible implementation, the fixed plate frame is provided with a limiting protrusion for preventing the movable plate frame from over-eversion. Compared with the prior art, the movable plate frame is prevented from over-eversion. The limiting protrusion effectively controls the turning angle of the movable plate frame, avoids damage of the movable plate frame or affects the normal use of the tensioner due to over-eversion, that is, the service life of the tensioner is increased, and the operation safety is improved.

[0011] In a possible implementation, the fixed plate frame and the movable plate frame are 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, can withstand large tension and pressure, and reduce the risk of deformation and damage.

[0012] 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 enhanced. When the binding belt tension is borne, the reinforcing rib inhibits local deformation of the metal sheet through geometric rigidity, 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.

[0013] In a possible implementation, the movable clamping block is provided with a push plate for pushing the movable clamping block out of the clamping groove. Compared with the prior art, the push plate structure provides a clear force contact surface for the operator, and the unlocking action can be completed without the aid of tools, avoiding deformation of the components caused by repeated prying of the movable clamping block, and facilitating unlocking. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic view of the present application;

[0015] Figure 2 is a sectional view of the present application;

[0016] Figure 3 is a structural schematic view of the fixed plate frame;

[0017] Figure 4 is a structural schematic view of the movable plate frame;

[0018] Figure 5 is a partial structural schematic view of the locking mechanism;

[0019] BRIEF DESCRIPTION OF DRAWINGS

[0020] 1, fixed plate frame; 11, fixed hole; 12, through hole; 13, accommodating groove; 14, limiting protrusion; 2, movable plate frame; 21, push plate; 22, winding plate; 23, guide sliding groove; 24, hinge hole; 3, locking mechanism; 31, movable clamping block; 311, push plate; 32, clamping groove; 33, elastic member; 4, hinge shaft; 41, winding drum. DETAILED DESCRIPTION

[0021] First, those skilled in the art should understand that the 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.

[0022] In the description of the embodiments of the present application, it should be explained that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or 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.

[0023] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or it only means that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or it only means that the horizontal height of the first feature is less than that of the second feature.

[0024] 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 is strongly related to the skill level of the operator, and the lack of standardization affects the overall operation efficiency.

[0025] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0026] Reference Figures 1 to 5The embodiment of the application discloses a tensioner, which comprises a fixed plate frame 1, a movable plate frame 2 and a locking mechanism 3; the fixed plate frame 1 is provided with a plurality of fixing holes 11 for mounting the tensioner on a fixed device or carrier, a plurality of through holes 12 for the binding belt to pass through and a containing groove 13 for containing the movable plate frame 2; the movable plate frame 2 is rotationally connected to the fixed plate frame 1 through a hinge shaft 4, and the movable plate frame 2 is provided with a push plate 21 at an end away from the hinge shaft 4, the push plate 21 is used for turning the movable plate frame 2 inward to be placed into the containing groove 13, and the movable plate frame 2 is provided with a winding plate 22 for winding the binding belt; the locking mechanism 3 comprises a movable clamping block 31, a clamping groove 32 and an elastic member 33, the movable clamping block 31 is movably connected to the movable plate frame 2, the clamping groove 32 is arranged in the containing groove 13 and is used for clamping the movable clamping block 31, and the elastic member 33 is mounted on the movable plate frame 2 and is used for driving the movable clamping block 31 to move towards the clamping groove 32.

[0027] The fixed plate frame 1 is a support structure for mounting the tensioner, which can be realized by a stamping metal plate, and is provided with the fixing holes 11 on the surface for fixed connection with an external device or carrier, the through holes 12 for guiding the binding belt to pass through and the containing groove 13 for containing the movable plate frame 2; the movable plate frame 2 is a rotatable component hinged to the fixed plate frame 1, which can be realized by a stamping metal plate, and is connected through the hinge shaft 4 to realize the turning function, the winding plate 22 is used for winding the binding belt, and the push plate 21 is used for manual operation of the turning action; the locking mechanism 3 is an assembly for fixing the position of the movable plate frame 2, which can be realized by the movable clamping block 31 cooperating with the clamping groove 32 to realize mechanical locking, and the elastic member 33 provides continuous pressing force to ensure the clamping stability, and the movable clamping block 31 is reversibly clamped and released through the sliding connection mode.

[0028] As can be known from the above, in use, the tensioner is first mounted 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 plate frame 1, wound to the winding plate 22 and then passed out of the through holes 12; then the operator can turn the movable plate frame 2 inward through the push plate 21 to make it placed into the containing groove 13 of the fixed plate frame 1, so as to realize the tightening and fixing of the binding belt. When the movable plate frame 2 is completely turned into the containing groove 13, the locking mechanism 3 starts to play a role, and under the driving of the elastic member 33, the movable clamping block 31 moves towards the clamping groove 32 and is clamped therein, so as to lock the movable plate frame 2 in the containing groove 13 and 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 plate frame 2 simplifies the tightening process of the binding belt, and complex knotting operation is not needed; the design of the locking mechanism 3 ensures the stability of the movable plate frame 2 in the tightened state and prevents loosening due to external force; and the use of the elastic member 33 makes the locking process automatic, improving the operation convenience.

[0029] In the embodiment, the movable plate frame 2 is provided with a guide sliding groove 23, and the movable clamping block 31 is slidingly connected in the guide sliding groove 23. The movable clamping block 31 is a sliding block structure matched with the guide sliding groove 23, and can freely slide in the guide sliding groove 23, thereby improving the movement reliability of the movable clamping block 31.

[0030] In the embodiment, the elastic member 33 is an elastic rod, one end of the elastic rod is connected with the movable clamping block 31, and the other end of the elastic rod abuts against the groove bottom of the guide sliding groove 23. The elastic rod is made of a metal material, for example, spring steel, and the length and diameter of the elastic rod are designed according to the size of the guide sliding groove 23 and the required driving force of the movable clamping block 31. The elastic rod is fixed with the movable clamping block 31 by buckling, and the other end of the elastic rod is in abutting contact with the groove bottom of the guide sliding groove 23, thereby avoiding the complexity of the assembly due to the fixed structure. Specifically, when the movable plate frame 2 is turned inward and placed in the accommodating groove 13, the movable clamping block 31 continuously slides in the direction of the clamping groove 32 under the abutting force of the elastic rod until it is completely clamped. The abutting mode of the elastic rod and the groove bottom does not require additional installation of a fixing member, thereby simplifying the assembly process. That is, the elastic rod maintains stable elastic restoring force in long-term use, thereby ensuring the locking effect of the movable clamping block 31 and the clamping groove 32.

[0031] In the embodiment, the hinge shaft 4 is fixedly connected to the fixed plate frame 1, the movable plate frame 2 is provided with a hinge hole 24, and the hinge hole 24 is sleeved on the hinge shaft 4 to form a rotating pair structure. The hinge shaft 4 is fixed at a predetermined position of the fixed plate frame 1 by riveting or bolt connection, the diameter of the hinge hole 24 is slightly larger than the outer diameter of the hinge shaft 4 to form a clearance fit, and the movable plate frame 2 is allowed to 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 rotating support structure with the hinge shaft 4 through the hinge hole 24. The hinge hole 24 and the hinge shaft 4 adopt a clearance fit, which not only ensures smooth rotation, but also maintains structural stability by limiting the radial displacement range.

[0032] In the embodiment, the hinge shaft 4 is also sleeved with a winding cylinder 41 for winding the binding belt. Specifically, the winding cylinder 41 is made of a metal material with a smooth surface. The design structure of the winding cylinder 41 can prevent the binding belt from rebounding and relaxing during transportation vibration, thereby ensuring stable binding tension.

[0033] In the embodiment, the fixed plate frame 1 is provided with a limiting protrusion 14 for preventing the movable plate frame 2 from excessively turning outward. Specifically, the limiting protrusion 14 is integrally formed with the fixed plate frame 1 by sheet metal stamping process. When the movable plate frame 2 is turned outward under the action of external force, the edge thereof abuts against the contact surface of the limiting protrusion 14, thereby effectively inhibiting the tendency of excessively turning outward.

[0034] In the embodiment, reinforcing ribs are arranged on the fixed plate frame 1 and the movable plate frame 2. The reinforcing ribs are formed as protruding or recessed strip structures on the surface of the sheet metal by stamping process, and the extending direction is perpendicular to the stress direction or forms an angle, which effectively suppresses plastic deformation. The design realizes strength improvement by optimizing material distribution without increasing the thickness of the plate, while maintaining the economy of the stamping process.

[0035] In the embodiment, the movable clamping block 31 is integrally provided with a push plate 311 for pushing the movable clamping block 31 out of the clamping groove 32. The integral design of the push plate 311 and the movable clamping block 31 ensures stable force transmission path, and in combination with the resetting action of the elastic member 33, the unlocking action is fast, accurate and repeatable.

[0036] 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 in the hole wall, and avoids the occurrence of hooking or cutting damage of the fiber material at the right-angle edge. The round corner transition structure enables 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.

[0037] In the description of the embodiments of the present application, it should be explained 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 of the present application.

[0038] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "in the embodiment", "specific example" or "some examples" means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, 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 one or more embodiments or examples in a suitable manner. In addition, the 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.

[0039] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any changes or replacements within the technical scope disclosed by the present application can be easily conceived by the person skilled in the art, and 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 by, The fixed plate frame, the movable plate frame and the locking mechanism are included. 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 receiving groove for accommodating the movable plate frame. The movable plate frame is rotatably connected to the fixed plate frame through a hinge shaft, and is provided with a push plate at an end away from the hinge shaft, which is used to turn the movable plate frame inward and put it into the receiving groove. The locking mechanism includes a movable clamping block, a clamping groove and an elastic member.

2. The tensioner of claim 1, wherein The movable clamping block is movably connected to the movable plate frame, the clamping groove is arranged in the receiving groove and used to clamp the movable clamping block, and the elastic member is arranged on the movable plate frame and used to drive the movable clamping block to move towards the clamping groove.

3. The tensioner of claim 2, wherein The movable plate frame is provided with a guide sliding groove, and the movable clamping block is slidably connected to the guide sliding groove.

4. The tensioner of claim 1, wherein The elastic member is an elastic rod, one end of which is connected to the movable clamping block, and the other end of which abuts against the groove bottom of the guide sliding groove.

5. The tensioner of claim 4, wherein The hinge shaft is fixedly connected to the fixed plate frame, and the movable plate frame is provided with a hinge hole, which is sleeved on the hinge shaft to form a rotating pair structure.

6. The tensioner of claim 1, wherein The hinge shaft is further sleeved with a winding cylinder for winding the binding belt.

7. The tensioner of claim 1, wherein The fixed plate frame is provided with a limiting protrusion for preventing the movable plate frame from excessively turning outward.

8. The tensioner of claim 7, wherein The fixed plate frame and the movable plate frame are both metal sheet stamping parts.

9. The tensioner of claim 1, wherein The fixed plate frame and / or the movable plate frame are provided with reinforcing ribs. The movable clamping block is provided with a push plate, which is used to push the movable clamping block out of the clamping groove.

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