High-strength reducing fastener

Abstract

The utility model discloses a high-strength variable-diameter fastener, which belongs to the field of fasteners and comprises a fixed part, a limiting groove is arranged in the middle of the fixed part, linear sliding grooves are arranged at four corners of the upper end of the fixed part, and a circular movable piece is mounted in the fixed part. First arc-shaped sliding grooves are formed in the four ends of the interior of the circular movable piece correspondingly, the first arc-shaped sliding grooves are obliquely formed facing the circle center of the circular movable piece, limiting rods are installed in the linear sliding grooves and the first arc-shaped sliding grooves correspondingly, two flanges are arranged at the lower ends of the outer sides of the limiting rods correspondingly, and the limiting rods are movably connected with the first arc-shaped sliding grooves through the flanges correspondingly. According to the variable-diameter fastening piece, the variable-diameter function of the fastening piece can be achieved, workpieces with different diameters can be fixed through the fastening piece, and the functionality of the fastening piece is improved.

Description

Technical Field

[0001] The utility model relates to the field of fasteners, and more specifically to a high-strength variable-diameter fastener. Background Art

[0002] In the existing technology, fasteners can only fix workpieces with the same diameter, which leads to great limitations in the use of the fasteners, reduces the functionality of the fasteners, and makes the fasteners unable to meet the needs of users. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a high-strength variable diameter fastener, which can realize the variable diameter function of the fastener, so that the fastener can fix workpieces of different diameters, thereby improving the functionality of the fastener.

[0005] 2. Technical solution

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A high-strength variable-diameter fastener comprises a fixing part, a limiting groove is arranged in the middle of the fixing part, linear slide grooves are arranged at the four corners of the upper end of the fixing part, a circular movable piece is installed inside the fixing part, a first arc-shaped slide groove is arranged at the four ends inside the circular movable piece, the first arc-shaped slide grooves are inclined facing the center of the circular movable piece, limiting rods are installed inside the linear slide groove and the first arc-shaped slide groove, two ribs are arranged at the lower end of the outer side of the limiting rod, the limiting rods are movably connected to the first arc-shaped slide groove through the ribs, and a connecting block is arranged on the right side of the circular movable piece, which can realize the variable-diameter function of the fastener, so that the fastener can fix workpieces of different diameters, thereby improving the functionality of the fastener.

[0008] Furthermore, an arc-shaped groove is provided in the middle part of the right side of the fixing member, an arc-shaped limiting plate is provided on the outer side of the lower end of the right side of the fixing member, and a second arc-shaped sliding groove is provided in the middle part of the arc-shaped limiting plate. When in use, when the connecting block rotates, the connecting block slides inside the arc-shaped groove and on the upper end of the arc-shaped limiting plate.

[0009] Furthermore, bolts are installed in the middle of the connecting block and inside the second arc-shaped slide groove, and the upper end of the outer side of the bolt is threadedly connected with a fastening nut. When in use, when the connecting block is moved to the position where it needs to be used, the fixing part can limit the workpiece, and the staff can tighten the fastening nut downward to fix the connecting block to the upper end of the arc-shaped limiting plate through the bolts and the fastening nut.

[0010] Furthermore, the upper ends of the plurality of limit rods are fixedly connected to the limit plates, the middle parts of the upper ends of the limit plates are fixedly connected to cylinders, both sides of the lower ends of the cylinders are fixedly connected to clamping blocks, and first slide grooves are arranged on both sides of the plurality of linear slide grooves, and the clamping blocks are movably connected to the first slide grooves. When in use, the limit rods can drive the limit plates to move inwards and outwards at the same time when they move, and the clamping blocks at their lower ends can be driven to slide inside the first slide groove when the limit plates move, so that the limit plates can maintain linear movement when they move.

[0011] Furthermore, the upper ends of the inner sides of the multiple cylinders are fixedly connected with telescopic rods, the outer ends of the telescopic rods are installed with strong springs, the inner sides of the telescopic rods are fixedly connected with arc-shaped limit plates, and the inner sides of the arc-shaped limit plates are provided with anti-slip particles. When in use, after the limit plates drive the upper end components to move inward, the inner sides of the multiple arc-shaped limit plates contact the workpieces to be fixed, and limit and fix them.

[0012] 3. Beneficial effects

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] (1) This solution can realize the variable diameter function of the fastener, so that the fastener can fix workpieces of different diameters, thereby improving the functionality of the fastener.

[0015] (2) An arc-shaped slot is provided in the middle of the right side of the fixing member, an arc-shaped limit plate is provided on the outer side of the lower end of the right side of the fixing member, and a second arc-shaped sliding slot is provided in the middle of the arc-shaped limit plate. When the connecting block rotates, the connecting block slides inside the arc-shaped slot and on the upper end of the arc-shaped limit plate.

[0016] (3) Bolts are installed in the middle of the connecting block and inside the second arc-shaped slide groove. The upper end of the outer side of the bolt is threadedly connected with a fastening nut. When the connecting block is moved to the position where it needs to be used, the fixing part can limit the workpiece. The staff can tighten the fastening nut downward and fix the connecting block to the upper end of the arc-shaped limit plate through the bolts and the fastening nut.

[0017] (4) The upper ends of the plurality of limit rods are fixedly connected to the limit plates, the middle of the upper ends of the limit plates are fixedly connected to cylinders, the lower ends of the cylinders are fixedly connected to blocks on both sides, the first slide grooves are arranged on both sides of the plurality of linear slide grooves, the blocks are movably connected to the first slide grooves, when the limit rods move, the limit plates can be driven to move inward and outward at the same time, when the limit plates move, the blocks at their lower ends can be driven to slide inside the first slide grooves, so that the limit plates can maintain linear movement when moving.

[0018] (5) The upper ends of the inner sides of the multiple cylinders are fixedly connected with telescopic rods, the outer ends of the telescopic rods are installed with strong springs, the inner sides of the telescopic rods are fixedly connected with arc-shaped limit plates, and the inner sides of the arc-shaped limit plates are provided with anti-slip particles. After the limit plates drive the upper end components to move inward, the inner sides of the multiple arc-shaped limit plates contact the workpieces to be fixed, limit and fix them. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the circular movable piece in the utility model;

[0021] Figure 3 For the utility model Figure 1 Enlarged view of point A in the middle.

[0022] Description of the numbers in the figure:

[0023] 1. Fixing piece; 2. Limiting groove; 3. Circular movable piece; 4. First arc-shaped slide groove; 5. Limiting rod; 6. Retaining edge; 7. Connecting block; 8. Linear slide groove; 9. Limiting plate; 10. First slide groove; 11. Block; 12. Cylinder; 13. Telescopic rod; 14. Strong spring; 15. Arc-shaped limiting plate; 16. Anti-skid particles; 17. Arc-shaped slot; 18. Arc-shaped limiting piece; 19. Second arc-shaped slide groove; 20. Bolt; 21. Fastening nut. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] Embodiment 1:

[0028] See also Figure 1-3 A high-strength variable-diameter fastener comprises a fixing member 1, a limiting groove 2 is arranged in the middle of the fixing member 1, and linear slide grooves 8 are arranged at the four corners of the upper end of the fixing member 1. A circular movable piece 3 is installed inside the fixing member 1, and the four ends inside the circular movable piece 3 are arranged with a first arc slide groove 4, and the first arc slide groove 4 is inclined toward the center of the circular movable piece 3. A limiting rod 5 is installed inside the linear slide groove 8 and the first arc slide groove 4, and two retaining edges 6 are arranged at the lower ends of the outer sides of the limiting rod 5. The limiting rod 5 is movably connected to the first arc slide groove 4 through the retaining edges 6. A connecting block 7 is arranged on the right side of the circular movable piece 3. When in use, the staff can hold the connecting block 7 to control the rotation of the connecting block 7 and the circular movable piece 3. The clockwise rotation of the circular movable piece 3 can drive multiple limiting rods 5 to move inward, and the limiting rod 5 can be driven to move linearly inward through the linear slide groove 8.

[0029] See also Figure 1 An arc-shaped groove 17 is provided in the middle part of the right side of the fixing member 1, an arc-shaped limiting piece 18 is provided on the outer side of the lower end of the right side of the fixing member 1, and a second arc-shaped sliding groove 19 is provided in the middle of the arc-shaped limiting piece 18. When in use, when the connecting block 7 rotates, the connecting block 7 slides inside the arc-shaped groove 17 and the upper end of the arc-shaped limiting piece 18.

[0030] See also Figure 1 Bolts 20 are installed in the middle of the connecting block 7 and inside the second arc-shaped slide groove 19, and a fastening nut 21 is threadedly connected to the upper end of the outer side of the bolt 20. When in use, when the connecting block 7 is moved to the position where it needs to be used, the fixing part 1 can limit the workpiece, and the staff can tighten the fastening nut 21 downward, and fix the connecting block 7 to the upper end of the arc-shaped limiting piece 18 through the bolt 20 and the fastening nut 21, and fix the connecting block 7 to make the variable diameter fastener more secure when in use.

[0031] See also Figure 1-3The upper ends of multiple limit rods 5 are fixedly connected to the limit plates 9, and the middle parts of the upper ends of the limit plates 9 are fixedly connected to the cylinders 12. Both sides of the lower ends of the cylinders 12 are fixedly connected to the blocks 11. Both sides of multiple linear slides 8 are provided with first slides 10, and the blocks 11 are movably connected to the first slides 10. When in use, when the limit rods 5 move, they can drive the limit plates 9 to move inward and outward at the same time. When the limit plates 9 move, they drive the blocks 11 at their lower ends to slide inside the first slides 10, so that the limit plates 9 can maintain linear movement when moving, prevent the limit plates 9 from flipping over, and improve the stability of the limit plates 9.

[0032] See also Figure 1-3 The upper ends of the inner sides of the multiple cylinders 12 are fixedly connected with telescopic rods 13, and the outer ends of the telescopic rods 13 are installed with strong springs 14. The inner sides of the telescopic rods 13 are fixedly connected with arc-shaped limit plates 15, and the inner sides of the arc-shaped limit plates 15 are provided with anti-skid particles 16. When in use, after the limit plate 9 drives its upper end components to move inward, the inner sides of the multiple arc-shaped limit plates 15 contact the workpiece to be fixed, limit and fix it, and through the setting of the anti-skid particles 16, the friction force on the inner side of the arc-shaped limit plate 15 can be increased to prevent the workpiece from sliding and improve the tightness of the fastener.

[0033] The working principle of the utility model is as follows: the staff can hold the connecting block 7, control the connecting block 7 and the circular movable piece 3 to rotate, the circular movable piece 3 can drive the multiple limit rods 5 to move inwardly by rotating clockwise, and the limit rods 5 can be driven to move linearly inwardly through the linear slide groove 8. After the limit plate 9 drives its upper end components to move inwardly, the inner sides of the multiple arc-shaped limit plates 15 contact the workpiece to be fixed, limit and fix it, and the anti-skid particles 16 can be set to increase the friction force on the inner side of the arc-shaped limit plate 15 to prevent the workpiece from sliding and improve the tightness of the fastener. When the limit rod 5 moves The limit plate 9 can be driven to move inward and outward at the same time. When the limit plate 9 moves, the block 11 at its lower end is driven to slide inside the first slide groove 10, so that the limit plate 9 can maintain straight line movement during movement, and the turning of the arc-shaped limit plate 15 is prevented from tilting, thereby improving the stability of the fastener. When the connecting block 7 is moved to the position where it needs to be used, the fixing part 1 can limit the workpiece, and the staff can tighten the fastening nut 21 downward, and fix the connecting block 7 to the upper end of the arc-shaped limit plate 18 by the bolt 20 and the fastening nut 21, and fix the connecting block 7 to make the variable diameter fastener more firm when in use.

[0034] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A high-strength variable diameter fastener, comprising a fixing member (1), characterized in that: A limiting groove (2) is provided in the middle of the fixing member (1), and linear slide grooves (8) are provided at four corners of the upper end of the fixing member (1). A circular movable piece (3) is installed inside the fixing member (1), and first arcuate slide grooves (4) are provided at four ends inside the circular movable piece (3). The first arcuate slide grooves (4) are inclined toward the center of the circular movable piece (3). A limiting rod (5) is installed inside the linear slide groove (8) and the first arcuate slide groove (4), and two retaining edges (6) are provided at the lower ends of the outer sides of the limiting rod (5). The limiting rod (5) is movably connected to the first arcuate slide groove (4) through the retaining edges (6), and a connecting block (7) is provided on the right side of the circular movable piece (3).

2. A high-strength variable diameter fastener according to claim 1, characterized in that: An arc-shaped slot (17) is provided in the middle of the right side of the fixing member (1), an arc-shaped limiting piece (18) is provided on the outer side of the lower end of the right side of the fixing member (1), and a second arc-shaped sliding groove (19) is provided in the middle of the arc-shaped limiting piece (18).

3. A high-strength variable diameter fastener according to claim 1, characterized in that: Bolts (20) are installed in the middle of the connection block (7) and inside the second arc-shaped slide groove (19), and a fastening nut (21) is threadedly connected to the upper end of the outer side of the bolt (20).

4. A high-strength variable diameter fastener according to claim 1, characterized in that: The upper ends of the plurality of limit rods (5) are fixedly connected to the limit plate (9), the middle of the upper end of the limit plate (9) is fixedly connected to a cylinder (12), both sides of the lower end of the cylinder (12) are fixedly connected to a clamping block (11), and both sides of the plurality of linear slide grooves (8) are provided with a first slide groove (10), and the clamping block (11) is movably connected to the first slide groove (10).

5. A high-strength variable diameter fastener according to claim 4, characterized in that: The inner upper ends of the plurality of cylinders (12) are all fixedly connected to telescopic rods (13), the outer ends of the telescopic rods (13) are all installed with strong springs (14), the inner sides of the telescopic rods (13) are all fixedly connected to arc-shaped limit plates (15), and the inner sides of the arc-shaped limit plates (15) are all provided with anti-skid particles (16).

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