Binding belt tensioner

Abstract

The invention provides a strainer for a binding belt, which comprises a strainer main body, two ends of which are respectively provided with a fixing part for fixing one end of the binding belt and a through hole for the other end of the binding belt to pass through; the pressing plate is rotationally connected to the tensioner body through a hinged shaft, a pressing head is arranged on the pressing plate, a pressing groove allowing the pressing head to be placed in is formed in the tensioner body, and an opening of the pressing groove faces the penetrating hole; and the driver is mounted between the tensioner main body and the pressing plate and is used for driving the pressing head to move towards the pressing groove, so that the binding belt is pressed in the pressing groove. The tensioner can reduce manpower needed by operation and improve tensioning efficiency, and has the advantages of improving connection reliability and operation convenience and prolonging the service life.

Description

Technical Field

[0001] The present invention relates to the technical field of bundling devices, and more particularly, to a bundling strap tightener. Background Art

[0002] In many fields such as industrial production, outdoor operations, and daily life, bundling straps are widely used as important connection and load-bearing tools. The connection effect at both ends of the bundling strap has a crucial impact on the safety and efficiency of the overall work. Currently, the connection at both ends of the bundling strap is generally fixed by tying a knot.

[0003] In industrial scenarios, such as in operations like lifting goods and pulling equipment, when using the knot-tying method to fix the bundling strap, due to the complex frictional and stress forces acting on the knot during the force-bearing process of the bundling strap, the knot is prone to loosening after long-term use. Once the bundling strap becomes loose, it may lead to serious problems such as the falling of goods and the out-of-control of equipment, which will not only cause property losses but may even endanger the lives of personnel. At the same time, when tightening the bundling strap, the operator needs to spend a great deal of effort to adjust the tightness of the knot. Especially when the bundling strap is long or bears a large weight, the tightening process is time-consuming and laborious, seriously affecting work efficiency. Moreover, repeatedly pulling the bundling strap tightly may cause wear to the bundling strap, further reducing the service life and connection quality of the bundling strap.

[0004] It can be seen that problems such as loosening and difficult tightening existing in the traditional knot-tying connection method have become key factors affecting the connection efficiency and quality of the bundling strap. To meet the high-efficiency and safety requirements for bundling strap connections in various fields, there is an urgent need for a bundling strap tightener that can solve the above problems to improve the connection efficiency and quality of the bundling strap and ensure the smooth progress of related operations. Summary of the Invention

[0005] The purpose of the present application is to provide a bundling strap tightener, which has the advantages of improving the connection reliability and operation convenience of the bundling strap.

[0006] The present application provides a bundling strap tightener, including: a tightener main body, with a fixing part for fixing one end of the bundling strap and a perforation for the other end of the bundling strap to pass through respectively provided at both ends; a pressing plate, which is rotatably connected to the tightener main body through a hinge shaft, a pressing head is provided on the pressing plate, a pressing groove for the pressing head to be placed in is provided on the tightener main body, and the opening of the pressing groove faces the perforation; a driver, which is installed between the tightener main body and the pressing plate and is used to drive the pressing head to move towards the pressing groove so that the bundling strap is pressed in the pressing groove.

[0007] Compared with the prior art, the bundling strap tightener of the present application has the following advantages: Through the combined design of the articulated pressing plate and the driver, an automatically lockable clamping structure is formed on the tightener body, replacing the traditional knotting and fixing method, realizing the rapid pressing and reliable locking of the bundling strap; The matching structure of the pressing head and the pressing groove can evenly disperse the force on the bundling strap, avoiding wear problems caused by local stress concentration. The continuous pressing force provided by the driver can prevent the bundling strap from loosening and falling off during vibration or load changes, thereby improving the connection efficiency and safety.

[0008] In a possible implementation manner, the hinge shaft is fixedly connected to the tightener body, and a hinge hole is provided on the pressing plate. The hinge hole is sleeved on the hinge shaft to form a rotating pair structure. Compared with the prior art, a reliable connection and flexible rotation between the pressing plate and the tightener body are realized. Thus, the pressing plate can stably rotate around the hinge shaft to ensure that the pressing head can accurately press into the pressing groove.

[0009] In a possible implementation manner, the driver is a spiral torsion spring. The spiral torsion spring is sleeved on the hinge shaft, and the two ends of the spiral torsion spring are respectively connected to the tightener body and the pressing plate. Compared with the prior art, the automatic reset function of the pressing plate is realized. The elastic force of the spiral torsion spring can ensure that the pressing plate maintains a stable pressing force for a long time, prevent the bundling strap from loosening, and improve the reliability and safety of the bundling strap connection.

[0010] In a possible implementation manner, a pressing portion is provided at one end of the pressing plate away from the pressing head. The pressing portion is used to drive the pressing plate to rotate around the hinge shaft, so that the pressing head disengages from the pressing groove. Compared with the prior art, the rapid release of the bundling strap is realized. The operator only needs to gently press the pressing portion to drive the pressing plate to rotate, and the pressing head can be disengaged from the pressing groove without complex operations, thereby releasing the bundling strap; At the same time, the disassembly process of the bundling strap is simplified, and the operation efficiency is improved.

[0011] In a possible implementation manner, the pressing head is integrally formed on the pressing plate, and the bottom surface of the pressing head is matched with the bottom surface of the pressing groove. Compared with the prior art, the integrated design of the pressing head and the pressing plate is realized, improving the reliability and safety of the bundling strap tightener.

[0012] In a possible implementation manner, a plurality of serrated protrusions are provided on the bottom surface of the pressing head. The serrated protrusions cooperate with the pressing groove to clamp the bundling strap. Compared with the prior art, the clamping effect of the bundling strap is improved. The serrated protrusions increase the friction between the pressing head and the bundling strap, preventing the bundling strap from sliding when stressed.

[0013] In a possible implementation, both the tensioner body and the pressing plate are formed by stamping metal sheet metal. Compared with the prior art, the overall strength and durability of the bundling strap tensioner are improved. The tensioner body and the pressing plate formed by stamping metal sheet metal have high mechanical strength, can withstand large tensile and compressive forces, and reduce the risk of deformation and damage.

[0014] In a possible implementation, reinforcing ribs are provided on the tensioner body and / or the pressing plate. Compared with the prior art, the anti-bending ability of the sheet metal part is effectively enhanced. When bearing the tension of the bundling strap, the reinforcing ribs inhibit the local deformation of the metal sheet through the rigidity improvement of the geometric shape, so that the matching accuracy between the pressing plate and the tensioner body can be maintained for a long time, ensuring the stability of the bundling strap pressing force. Brief Description of the Drawings

[0015] Figure 1 is a schematic structural view of the present application; Figure 2 is a sectional view of the present application; Figure 3 is a schematic structural view of the pressing plate; Figure 4 is a schematic structural view of the tensioner body; Figure 5 is a schematic view of the use state of the present application; Description of the Reference Numerals in the Drawings: 1. Tensioner body; 11. Fixed part; 12. Perforation; 13. Pressing groove; 2. Pressing plate; 21. Pressing head; 211. Serrated protrusion; 22. Reaming hole; 23. Pressing part; 3. Hinge shaft; 4. Driver; 10. Bundling strap. Detailed Embodiments

[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 make adjustments according to needs to adapt to specific application scenarios.

[0017] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0018] In the embodiments of the present application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0019] In the traditional existing fixing method of the binding strap, when the two ends are connected by tying a knot, the knot slips due to friction and stress concentration under dynamic loads, resulting in a significant increase in the risk of fixing failure. Since the knot structure lacks a mechanical locking function, the operator needs to continuously apply an external force to maintain the tension of the binding strap, which not only causes excessive manpower consumption, but also accelerates material wear due to repeated adjustment, directly affecting the reliability and operation continuity of the load-bearing system.

[0020] If the above problems are not solved, the slip of the knot will cause the effective tension of the binding strap not to be maintained within the safety threshold, increasing the risk of cargo falling or equipment tipping over; repeated manual intervention will significantly reduce the operation efficiency and cause operation errors due to high-intensity physical consumption; at the same time, the binding strap will accelerate wear due to local stress concentration, shortening the service life and increasing the maintenance cost, ultimately restricting the application feasibility of large-scale operation scenarios.

[0021] The following further describes the present application in detail with reference to the drawings and specific embodiments.

[0022] See Figures 1 to 4 , the embodiments of the present application disclose a binding strap tightener, including: a tightener main body 1, a pressing plate 2 and a driver 4; both ends of the tightener main body 1 are respectively provided with a fixing portion 11 for fixing one end of the binding strap 10 and a through hole 12 for the other end of the binding strap 10 to pass through; the pressing plate 2 is rotatably connected to the tightener main body 1 through a hinge shaft 3, the pressing plate 2 is provided with a pressing head 21, and the tightener main body 1 is provided with a pressing groove 13 for the pressing head 21 to be placed in, and the opening of the pressing groove 13 faces the through hole 12; the driver 4 is installed between the tightener main body 1 and the pressing plate 2 and is used to drive the pressing head 21 to move towards the pressing groove 13 so that the binding strap is pressed in the pressing groove 13.

[0023] Among them, the tensioner body 1 refers to a structural member for bearing tension, which can be specifically formed by stamping a metal plate into a structure with through holes at both ends. The fixing part 11 is used to fix one end of the binding strap to provide an anchoring point, and the perforation 12 is used to guide the other end of the binding strap to pass through for subsequent pressing operations; the pressing plate 2 refers to a movable part connected to the tensioner body 1 in a hinged manner, which can be specifically realized by a sheet metal part stamped from a metal plate. The pressing head 21 and the pressing groove 13 cooperate to form a clamping area; the driver 4 refers to a driving element that provides pressing power. The driver 4 acts between the pressing plate 2 and the tensioner body 1 to generate a continuous pressing force to ensure that the pressing head 21 is stably pressed into the pressing groove 13.

[0024] As can be known from the above, during operation, one end of the binding strap is fixed in the fixing part 11, and the other end passes through the perforation 12; the driver 4 drives the pressing plate 2 to rotate around the hinge shaft 3, so that the pressing head 21 moves towards the pressing groove 13. After the pressing head 21 enters the pressing groove 13, the binding strap is pressed in the pressing groove 13 to realize the fixation of the binding strap; the opening of the pressing groove 13 faces the perforation 12, ensuring that the binding strap can smoothly enter the pressing groove 13 and be pressed. The operation is simple and fast, reducing labor consumption and improving work efficiency.

[0025] In this embodiment, the hinge shaft 3 is fixedly connected to the tensioner body 1, and the pressing plate 2 is provided with a hinge hole 22. The hinge hole 22 is sleeved on the hinge shaft 3 to form a rotating pair structure. Among them, the hinge shaft 3 can be a cylindrical shaft made of metal material, and is fixed to the tensioner body 1 by riveting or bolt fastening. A circular through hole with a diameter slightly larger than the hinge shaft 3 is opened on the pressing plate 2 as the hinge hole 22. A clearance fit is formed between the inner wall of the hinge hole 22 and the outer surface of the hinge shaft 3; during long-term use, the cooperation structure of the fixed hinge shaft 3 and the hinge hole 22 can reduce component wear, extend the service life of the rotating pair, and improve the reliability of the pressing action.

[0026] In this embodiment, the driver 4 is a spiral torsion spring. The spiral torsion spring is sleeved on the hinge shaft 3, and both ends of the spiral torsion spring are respectively connected to the tensioner main body 1 and the pressing plate 2. Among them, the sleeving position of the spiral torsion spring is defined on the outer surface of the hinge shaft 3, and both ends thereof respectively form a force transmission path with the tensioner main body 1 and the pressing plate 2 through fixed points; the axis of the spiral torsion spring coincides with the axis of the hinge shaft 3, so that the torsion force arm of the torsion spring is consistent with the rotation center of the hinge shaft 3, avoiding the generation of eccentric torque; further, the number of turns of the spiral torsion spring is designed according to the rotation angle range of the pressing plate 2 to ensure that the driving torque required by the pressing plate 2 is matched. Specifically, when the pressing plate 2 rotates around the hinge shaft 3, both ends of the spiral torsion spring generate relative torsion with the main body and the pressing plate 2. At this time, the torsion spring accumulates elastic potential energy; when the external force is removed, the spiral torsion spring drives the pressing head 21 to move towards the pressing groove 13 by releasing the elastic potential energy, so that the gap between the pressing head 21 and the pressing groove 13 is reduced, thereby pressing the binding strap passing through the pressing groove 13; this design improves the reliability and response speed of the pressing action while simplifying the driving structure through the integrated layout of the hinge shaft 3 and the spiral torsion spring.

[0027] In this embodiment, a pressing part 23 is provided at one end of the pressing plate 2 away from the pressing head 21. The pressing part 23 is used to drive the pressing plate 2 to rotate around the hinge shaft 3 so that the pressing head 21 disengages from the pressing groove 13. Among them, the pressing part 23 is arranged at the distal end of the pressing plate 2 and forms a lever structure with the pressing head 21. The length and shape of the pressing part 23 are designed according to the operating torque requirement; anti-slip patterns or protrusions can be provided on the surface of the pressing part 23 to increase the friction force; when the pressing plate 2 rotates, the spiral torsion spring is compressed and stores energy. After the pressing part 23 is released, the torsion spring resets and drives the pressing head 21 to press into the pressing groove 13 again; the material of the pressing part 23 is the same as that of the pressing plate 2 and is integrally formed by a stamping process to ensure the structural strength. Specifically, the pressing part 23 amplifies the operating force through the lever principle. When the operator presses the distal end of the pressing part 23, a relatively small acting force can overcome the resistance of the spiral torsion spring, so that the pressing head 21 quickly disengages from the pressing groove 13; when the pressing part 23 is released, the spiral torsion spring releases the stored energy and pushes the pressing head 21 to reset, re-pressing the binding strap.

[0028] In this embodiment, the pressure head 21 is integrally formed on the pressing plate 2, and the bottom surface of the pressure head 21 is arranged to match the bottom surface of the pressure groove 13; a plurality of serrated protrusions 211 are provided on the bottom surface of the pressure head 21, and the serrated protrusions 211 cooperate with the pressure groove 13 to clamp the binding strap. Among them, there is no relative displacement between the integrally formed pressure head 21 and the pressing plate 2, avoiding the risk of deformation or fracture of the split structure when stressed; the serrated protrusions 211 are arranged in a triangular structure, and the tips of the serrated protrusions 211 face the opening direction of the pressure groove 13, forming a one-way engagement structure. Specifically, when the driver 4 drives the pressure head 21 to move towards the pressure groove 13, the tips of the serrated protrusions 211 penetrate into the surface material of the binding strap, increasing the microscopic meshing area of the contact surface; the groove structure on the bottom surface of the pressure groove 13 provides a support space for the serrated protrusions 211, causing the binding strap to be locally deformed and embedded in the groove after being pressed, forming a mechanical interlock and firmly clamping the binding strap.

[0029] In this embodiment, reinforcing ribs are provided on both the tensioner main body 1 and the pressing plate 2. Among them, the reinforcing ribs form raised or sunken strip-shaped structures on the sheet metal surface through a stamping process, and their extending direction is perpendicular to or forms an angle with the stress direction, effectively suppressing plastic deformation; this design realizes strength improvement by optimizing the material distribution without increasing the thickness of the sheet, while maintaining the economy of the stamping process.

[0030] In this embodiment, a rounded corner transition structure is provided on the inner wall of the through hole 12. This design effectively reduces the frictional resistance when the binding strap moves on the inner wall of the hole, avoiding snagging or cutting damage to the fiber material at the right-angle edge. The rounded corner transition structure enables the binding strap to move smoothly during the threading process, especially reducing the jamming phenomenon during the tensioning operation and improving the operation efficiency. At the same time, the arc-shaped contact surface evenly disperses the local stress on the binding strap, preventing material fatigue fracture caused by stress concentration and significantly extending the service life of the binding strap.

[0031] 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 positional relationship such as "inner" and "outer" are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0032] In the description of the present application, the descriptions with reference to terms such as "one embodiment", "some embodiments", "in this embodiment", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0033] As described above, it is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application should be covered by 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 bundling strap tightener, characterized in that, Comprising: A tightener body, with a fixing part for fixing one end of the binding strap and a perforation for the other end of the binding strap to pass through respectively at both ends; A pressing plate, which is rotatably connected to the tightener body through a hinge shaft. A pressing head is provided on the pressing plate, and a pressing groove for the pressing head to be placed in is provided on the tightener body. The opening of the pressing groove faces the perforation; A driver, which is installed between the tightener body and the pressing plate and is used to drive the pressing head to move towards the pressing groove so that the binding strap is pressed in the pressing groove.

2. The strap tightener according to claim 1, characterized in that, The hinge shaft is fixedly connected to the tightener body. A hinge hole is provided on the pressing plate, and the hinge hole is sleeved on the hinge shaft to form a rotational pair structure.

3. The strap tightener according to claim 2, wherein The driver is a spiral torsion spring. The spiral torsion spring is sleeved on the hinge shaft, and both ends of the spiral torsion spring are respectively connected to the tightener body and the pressing plate.

4. The strap tightener according to claim 3, characterized in that, One end of the pressing plate away from the pressing head is provided with a pressing part, and the pressing part is used to drive the pressing plate to rotate around the hinge shaft so that the pressing head disengages from the pressing groove.

5. The strap tightener according to claim 1, characterized in that, The pressing head is integrally formed on the pressing plate, and the bottom surface of the pressing head is matched with the bottom surface of the pressing groove.

6. The strap tightener according to claim 5, characterized in that, Several serrated protrusions are provided on the bottom surface of the pressing head, and the serrated protrusions cooperate with the pressing groove to clamp the binding strap.

7. The strap tightener according to claim 1, wherein Both the tightener body and the pressing plate are metal sheet metal stamping parts.

8. The strap tightener according to claim 7, wherein, Reinforcing ribs are provided on the tightener body and / or the pressing plate.

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