Bandage pressing buckle

Abstract

The utility model relates to a bandage pressing buckle which comprises a shell, a pressing block and a rotating shaft, the pressing block is installed in the shell and rotationally connected with the shell through the rotating shaft, the shell comprises a left side plate and a right side plate, the side plates are fixedly connected through extrusion ends arranged at the ends of the side plates, a pressed face is arranged on the side, facing the pressing block, of the extrusion ends, and a pressure applying face is arranged on the side, facing the pressed face, of the pressing block. The pressing block is provided with a plurality of mounting cavities for mounting the torsional springs, the rotating shaft penetrates through the side plate, the pressing block and the torsional springs, an abutting block is arranged in the middle of the side plate, the abutting block is provided with a plurality of first abutting grooves for abutting of the abutting block, a pressing end is arranged at the upper end of the pressing block, the height of the pressing end is smaller than or equal to that of the side plate, and a second abutting groove for abutting of the torsional springs is formed in the inner side of the pressing end. The torsion spring is installed in the installation cavity in the pressing block and is in abutting connection with the first abutting connection groove and the second abutting connection groove, looseness is avoided after long-term use through the arrangement of the torsion spring, and accidental opening is prevented through the design that the height of the pressing end is smaller than or equal to the height of the side plate.

Description

Technical Field

[0001] The utility model relates to the field of buckles, in particular to a binding buckle. Background Art

[0002] The main function of the strap buckle is to provide a convenient fixing method, enhance the safety of tying, and protect the tied items from damage. The design of the strap buckle is usually simple and easy to operate, and the tying and releasing process can be completed quickly. The strap buckle has a good locking property and can prevent the goods from shifting or slipping during transportation and movement, thereby improving the overall safety of the goods. Although the strap buckle is small, it plays an important role in modern logistics, packaging, and even in the fields of medical and sports protection.

[0003] The announcement number is: CN209788672U, which discloses a strap buckle, including a shell, a pressure block and a rotating shaft, the pressure block is in the shell, the pressure block and the shell are rotatably connected by a rotating shaft, the rotating shaft passes through the shell and the pressure block, and the rotating shaft passes through a first through hole and a second through hole respectively, the extrusion part is above the bottom plate, the bottom end of the extrusion part is a pressure surface, the surface of the bottom plate corresponding to the pressure surface is a pressure surface, and a plurality of protrusions are arranged in an array on the pressure surface, and the protrusions are used to press the strap between the pressure surface and the pressure surface, and the surface of the shell is covered with a galvanized layer. The structure is simple, easy to use, manual pressing is adopted, and the production cost is low. However, this technology is easy to loosen the pressure block under long-term use, which increases the gap between the pressure block and the shell and greatly reduces the fastening effect of the buckle. At the same time, the pressing method of the buckle is easy to be opened by mistake, causing safety accidents during transportation. Therefore, this technology still has a certain room for modification. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a binding belt buckle in view of the deficiencies of the above-mentioned prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a strap buckle, comprising a shell, a pressure block, and a rotating shaft, the pressure block is installed in the shell, and the pressure block is rotatably connected to the shell through the rotating shaft, characterized in that: the shell comprises two left and right side panels, the side panels are fixedly connected by an extrusion end arranged at the end of the side panel, the extrusion end is provided with a pressure-bearing surface facing the pressure block, the pressure block is provided with a pressure-applying surface facing the pressure-bearing surface, the pressure block is provided with a plurality of mounting cavities for installing torsion springs, the rotating shaft is passed through the side panels, the pressure block and the torsion spring, an abutment block is provided in the middle of the side panel, the abutment block is provided with a plurality of first abutment grooves for abutting the abutment block, a pressing end is provided at the upper end of the pressure block, the height of the pressing end is less than or equal to the height of the side panel, and a second abutment groove for abutting the torsion spring is provided on the inner side of the pressing end.

[0006] By adopting the above technical scheme, the side plate is tightly combined with the pressure surface and the pressure-applying surface of the pressure block through the first extrusion end. When the pressing end is pressed, the pressure block rotates around the rotating shaft, so that the pressure-applying surface contacts the pressure surface more closely, thereby generating a strong clamping force, ensuring the firmness of the buckle when fixing the object. The design that the height of the pressing end is less than or equal to the height of the side plate prevents accidental opening. The torsion spring is installed in the installation cavity in the pressure block, and abuts against the first abutment groove and the second abutment groove. When the pressing end is pressed, the torsion spring accumulates energy; after the pressing end is released, the torsion spring releases energy to help the pressing end quickly return to its original position and clamp the strap. This structure will not loosen under long-term use due to the setting of the torsion spring, so that the buckle has a good clamping effect.

[0007] The above-mentioned strap buckle can be further configured as follows: the side plate is provided with a winding end for winding the external strap at one end away from the extrusion end, the winding end is cylindrical, and the extrusion end, the winding end and the side plate are integrally arranged.

[0008] By adopting the above technical solution, the user only needs to fix the end of the strap to the winding end during installation, and can quickly replace or adjust the strap. The integrated design of the cylindrical winding end allows compatibility with straps of various types and widths, increasing the applicability of the product. By designing the extrusion end, the winding end and the side panel as one, the overall structural stability of the strap buckle is significantly enhanced. The integrated design reduces the risk of loosening due to loose connections between parts, making the entire buckle more durable and able to withstand greater usage intensity without being easily damaged.

[0009] The above-mentioned strap buckle can be further configured as follows: the pressure-applying surface is covered with pressing teeth on the side facing the pressure-receiving surface, the pressure-receiving surface is configured as an inclined surface, the pressure-receiving surface is provided with a trapezoidal protrusion from top to bottom, and the pressing teeth abut against the trapezoidal protrusion.

[0010] The above technical solution is adopted: the pressing teeth on the pressure surface and the trapezoidal protrusions on the pressure surface engage with each other, which significantly increases the friction of the contact surface. This structure greatly improves the anti-slip ability of the buckle when it is locked, thereby more firmly fixing the strap or the clamped object, and effectively preventing accidental sliding or loosening caused by external forces such as vibration or traction. Since the pressure surface is a sloped design, the buckle can better adapt to binding materials of different thicknesses.

[0011] The above-mentioned strap buckle can be further configured as follows: the side plate, pressure block, and torsion spring are all provided with through holes for the rotating shaft to pass through, and the rotating shaft is provided with a rolling tooth at either end, the diameter of the rolling tooth is larger than the rotating shaft, and the rolling tooth is connected to the through hole by interference fit.

[0012] By adopting the above technical solution, a rolling gear is arranged on the rotating shaft and the diameter of the rolling gear is made larger than the rotating shaft itself, so that an interference fit with the corresponding through hole is achieved. This interference fit provides a strong radial force, ensuring that the rotating shaft will not loosen in the through hole during movement, thereby maintaining the stability and durability of the entire buckle structure. The interference fit design simplifies the assembly process of the buckle assembly.

[0013] The above-mentioned strap buckle can be further configured as follows: the pressing end is obliquely arranged on the pressing block, and an opening is formed between the pressing end and the side plate.

[0014] By adopting the above technical solution, the tilted setting of the pressing end makes it more in line with the natural angle of the human hand. The user does not need to excessively bend or stretch his fingers during operation, thereby reducing hand fatigue during use. The open design prevents the user's fingers or other parts from contacting sharp edges or moving parts during operation, thereby reducing operational risks.

[0015] The beneficial effects of the utility model are as follows: the torsion spring is installed in the installation cavity in the pressing block, and is abutted against the first abutment groove and the second abutment groove. When the pressing end is pressed, the torsion spring accumulates energy; after the pressing end is released, the torsion spring releases energy to help the pressing end quickly return to its original position and clamp the strap. The structure will not loosen under long-term use due to the setting of the torsion spring, and the design that the height of the pressing end is less than or equal to the height of the side panel prevents accidental opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 The structure explosion of the utility model;

[0018] Figure 3 This is a block structure diagram of the utility model;

[0019] Reference numerals: 1-shell, 2-pressing block, 3-rotating shaft, 4-side plate, 5-extrusion end, 6-pressure surface, 7-pressure surface, 8-installation cavity, 9-abutment block, 10-first abutment groove, 11-torsion spring, 12-pressing end, 13 second abutment groove, 14-winding end, 15-pressing tooth, 16-trapezoidal protrusion, 17-through hole, 18-rolling gear, 19-opening. DETAILED DESCRIPTION

[0020] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0021] like Figure 1-2 The utility model shown in the figure provides the following technical scheme, a strap buckle, including a shell 1, a pressure block 2, and a rotating shaft 3. The pressure block 2 is installed in the shell 1, and the pressure block 2 is rotatably connected to the shell 1 through the rotating shaft 3. The shell 1 includes two left and right side panels 4, and the side panels 4 are fixedly connected by an extrusion end 5 arranged at the end of the side panel 4. The extrusion end 5 is provided with a pressure surface 6 on the side of the pressure block 2, and the pressure block 2 is provided with a pressure surface 7 on the side of the pressure surface 6. The pressure block 2 is provided with a plurality of installation cavities 8 for installing a torsion spring 11. The rotating shaft 3 is passed through the side panel 4, the pressure block 2 and the torsion spring 11. The middle part of the side panel 4 is provided with an abutment block 9, and the abutment The contact block 9 is provided with a plurality of first abutting grooves 10 for the abutting block 9 to abut, a pressing end 12 is provided at the upper end of the pressing block 2, the height of the pressing end 12 is less than or equal to the height of the side plate 4, and a second abutting groove 13 for the torsion spring 11 to abut is provided inside the pressing end 12. The side plate 4 is tightly combined with the pressure surface 6 and the pressure surface 7 of the pressing block 2 through the first extrusion end 5. When the pressing end 12 is pressed, the pressing block 2 rotates around the rotating shaft 3, so that the pressure surface 7 is more closely in contact with the pressure surface 6, thereby generating a strong clamping force, ensuring the firmness of the buckle when fixing the object, and the height of the pressing end 12 is less than or equal to the height of the side plate 4. The design of the height of the side plate 4 prevents accidental opening. The torsion spring 11 is installed in the installation cavity 8 in the pressing block 2. By abutting with the first abutting groove 10 and the second abutting groove 13, when the pressing end 12 is pressed, the torsion spring 11 accumulates energy; after the pressing end 12 is released, the torsion spring 11 releases energy to help the pressing end 12 quickly return to its original position and clamp the strap. The structure will not loosen under long-term use due to the setting of the torsion spring 11, so that the buckle has a good clamping effect. The end of the side plate 4 away from the extrusion end 5 is provided with a winding end 14 for the external strap to be wound, and the winding end 14 is cylindrical. The extrusion end 5, the winding end 14 and the side panel 4 are integrally arranged. During installation, the user only needs to fix the end of the strap to the winding end 14, and the strap can be quickly replaced or adjusted. The integrated design of the cylindrical winding end 14 allows compatibility with straps of various types and widths, increasing the applicability of the product. By designing the extrusion end 5, the winding end 14 and the side panel 4 as one body, the overall structural stability of the strap buckle is significantly enhanced. The integrated design reduces the risk of loosening due to loose connections between parts, making the entire buckle more durable and able to withstand greater intensity of use without being easily damaged.

[0022] like Figure 2-3The illustrated embodiment of a strap buckle has a pressure-applying surface 7 that is covered with pressing teeth 15 on the side facing the pressure-receiving surface 6. The pressure-receiving surface 6 is arranged as an inclined surface. A trapezoidal protrusion 16 is arranged from top to bottom on the pressure-receiving surface 6. The pressing teeth abut against the trapezoidal protrusion 16. The pressing teeth 15 on the pressure-applying surface 7 and the trapezoidal protrusion 16 on the pressure-receiving surface 6 mesh with each other, which significantly increases the friction of the contact surface. This structure greatly improves the anti-slip ability of the buckle when it is locked, thereby more firmly fixing the strap or the clamped object, and effectively preventing accidental sliding or loosening caused by external forces such as vibration or traction. Since the pressure-receiving surface 6 is an inclined surface design, the buckle can better adapt to binding materials of different thicknesses. The side plate 4, the pressure block 2, and the torsion spring 11 are all provided with a through hole 17 for the shaft 3 to pass through. The shaft 3 is provided with a rolling tooth 18 at either end. The diameter of the rolling tooth 18 is larger than that of the shaft 3. The rolling tooth 1 8 is connected with the through hole 17 by interference fit. By arranging a hobbing gear 18 on the rotating shaft 3 and making the diameter of the hobbing gear 18 larger than the rotating shaft 3 itself, an interference fit with the corresponding through hole 17 is achieved. This interference fit provides a strong radial force, ensuring that the rotating shaft 3 will not loosen in the through hole 17 during movement, thereby maintaining the stability and durability of the entire buckle structure. The interference fit design simplifies the assembly process of the buckle assembly. The pressing end 12 is tiltedly arranged on the pressing block 2, and an opening 19 is formed between the pressing end 12 and the side plate 4. The tilted setting of the pressing end 12 makes it more in line with the natural angle of the human hand. The user does not need to excessively bend or stretch his fingers during operation, thereby reducing hand fatigue during use. The opening 19 design prevents the user's fingers or other parts from contacting sharp edges or moving parts during operation, thereby reducing operational risks.

[0023] The beneficial effects of the utility model are as follows: the torsion spring 11 is installed in the installation cavity 8 in the pressing block 2, and is abutted against the first abutment groove 10 and the second abutment groove 13. When the pressing end 12 is pressed, the torsion spring 11 accumulates energy; after the pressing end 12 is released, the torsion spring 11 releases energy to help the pressing end 12 quickly return to its original position and clamp the strap. The structure will not become loose under long-term use due to the setting of the torsion spring 11, and the height of the pressing end 12 is less than or equal to the height of the side panel 4 to prevent accidental opening.

Claims

1. A binding buckle, comprising a housing, a pressing block, and a rotating shaft, wherein the pressing block is installed in the housing and is rotatably connected to the housing via the rotating shaft, characterized in that: The shell includes two left and right side panels, and the side panels are fixedly connected by an extrusion end arranged at the end of the side panel, the extrusion end is provided with a pressure surface facing the pressure block, and the pressure block is provided with a pressure-applying surface facing the pressure surface, the pressure block is provided with a plurality of mounting cavities for installing torsion springs, the rotating shaft is passed through the side panels, the pressure blocks and the torsion springs, an abutment block is provided in the middle of the side panels, the abutment block is provided with a plurality of first abutment grooves for abutment of the abutment block, a pressing end is provided at the upper end of the pressure block, the height of the pressing end is less than or equal to the height of the side panel, and a second abutment groove for abutment of the torsion spring is provided on the inner side of the pressing end.

2. A binding buckle according to claim 1, characterized in that: The side plate is provided with a winding end for winding an external strap at one end away from the extrusion end, the winding end is cylindrical, and the extrusion end, the winding end and the side plate are integrally arranged.

3. A binding buckle according to claim 2, characterized in that: The pressure-applying surface is covered with pressing teeth on the side facing the pressure-receiving surface. The pressure-receiving surface is arranged as an inclined surface. The pressure-receiving surface is provided with trapezoidal protrusions from top to bottom, and the pressing teeth abut against the trapezoidal protrusions.

4. A binding buckle according to claim 3, characterized in that: The side plate, the pressure block and the torsion spring are all provided with through holes for the rotating shaft to pass through. The rotating shaft is provided with a hobbing gear at either end. The diameter of the hobbing gear is larger than that of the rotating shaft. The hobbing gear is connected to the through hole by interference fit.

5. A binding buckle according to any one of claims 1 to 4, characterized in that: The pressing end is obliquely arranged on the pressing block, and an opening is formed between the pressing end and the side plate.

Images