Mechanical part fastening connection structure

Abstract

The utility model discloses a mechanical part fastening and connecting structure, which belongs to the technical field of part connecting structures, and comprises a part I, a part II, a bolt and a nut, the bottom end of the bolt penetrates through the part I and the part II and is in threaded connection with the nut, the top of the bolt is provided with a circular groove, and the circular groove is in threaded connection with the part II. Limiting grooves are formed in the two side walls of the bottom of the circular groove, T-shaped pressing columns are arranged in the limiting grooves, the ends, away from each other, of the two T-shaped pressing columns extend out of the bolt, the movable block can be used for driving the extrusion block to be screwed into the circular groove and extrude the inclined face of the inclined block, the T-shaped pressing columns move outwards, and then the bolt can be limited; and meanwhile, a plurality of fastening screws are additionally arranged on the nut, so that the nut can be limited after two parts are fastened by the nut and the bolt, the phenomenon of loosening caused by vibration is avoided, and the structural stability of the bolt is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of parts connection structures, and more specifically to a mechanical parts fastening connection structure. Background Art

[0002] The fastening connection structure is a commonly used connection in mechanical equipment, which can ensure that two or more parts that cooperate with each other can be tightly connected. As we all know, the fastening connection between mechanical parts usually involves opening holes on the mechanical parts for inserting screws, and then using the threaded connection between the screws and nuts to achieve the fixation of the two mechanical parts.

[0003] Based on the above, the inventors discovered that when fastening two mechanical parts, the threaded connection between the screw and the nut is not perfect in limiting and preventing the mechanical parts from loosening, which causes the mechanical parts to loosen when used in a vibration environment, affecting the stability of the subsequent use of the mechanical parts. Therefore, in view of this, the existing structure is studied and improved, and a mechanical parts fastening connection structure is provided, in order to achieve a more practical purpose. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a mechanical parts fastening connection structure, which can utilize a moving block to drive an extrusion block to rotate into a circular groove and extrude the inclined surface of the inclined block, so that the T-shaped pressure column moves outward, thereby limiting the position of the bolt to prevent the bolt from loosening. At the same time, multiple fastening screws are added to the nut, so that after the nut and the bolt fasten the two parts, the nut can be limited to prevent loosening due to vibration, thereby improving the stability of the structure.

[0006] 2. Technical solution

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] A mechanical parts fastening connection structure comprises part one, part two, a bolt and a nut, the bottom end of the bolt passes through part one and part two and is threadedly connected to the nut, a circular groove is provided on the top of the bolt, limiting grooves are provided on both side walls of the bottom of the circular groove, a T-shaped pressure column is arranged in the limiting groove, the ends of the two T-shaped pressure columns away from each other extend to the outside of the bolt, the sides of the two T-shaped pressure columns close to each other are fixedly connected with an inclined block, a reset spring is provided between the inner side wall of the T-shaped pressure column and the inner wall of the limiting groove, a moving block is threadedly connected inside the limiting groove, an extrusion block is fixedly connected to the bottom of the moving block, and the extrusion block is located between the two oblique blocks.

[0009] Furthermore, both part one and part two are provided with mounting holes, and the bottom end of the bolt passes through part one and part two in sequence through the mounting holes and is threadedly connected with the nut.

[0010] Furthermore, a plurality of threaded holes are formed on the outer periphery of the nut, and a fastening screw is threadedly connected inside the threaded hole. One end of the fastening screw extends to the inner side of the nut and abuts against the outer periphery of the bolt.

[0011] Furthermore, one end of the T-shaped pressure column that is away from each other passes through a bolt and abuts against a side wall of the mounting hole on part one.

[0012] Furthermore, an inner wall of the circular groove is provided with an internal thread, and an outer periphery of the moving block is provided with a matching external thread, and the circular groove and the moving block are threadably connected via the internal thread and the external thread.

[0013] Furthermore, a hexagonal anti-rotation groove is provided on the top of the part one, and the hexagonal head of the bolt is clamped in the hexagonal anti-rotation groove.

[0014] Furthermore, a hexagonal slot is provided at the top center of the moving block.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] In this solution, the moving block drives the extrusion block to rotate into the circular groove. During the rotation process, the extrusion block squeezes the inclined surface of the inclined block, so that the two T-shaped pressure columns can move outward and extend to the outside of the bolt and contact the side wall of the mounting hole. The continuous rotation of the moving block can limit the bolt and prevent it from loosening. At the same time, a plurality of fastening screws are added to the nut, so that after the nut and the bolt fasten the two parts, the nut can be limited to avoid loosening due to vibration, thereby improving the stability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the nut position splitting structure of the utility model.

[0022] Description of the numbers in the figure:

[0023] 1. Part 1;

[0024] 2. Part 2;

[0025] 3. Bolts;

[0026] 4. Nut;

[0027] 5. Circular groove;

[0028] 6. Limiting groove;

[0029] 7. T-type pressure column;

[0030] 8. Oblique block;

[0031] 9. Return spring;

[0032] 10. Move blocks;

[0033] 11. Extrusion block;

[0034] 12. Mounting holes;

[0035] 13. Threaded hole;

[0036] 14. Tighten the screws;

[0037] 15. Hexagonal anti-rotation groove;

[0038] 16. Hexagonal slot. DETAILED DESCRIPTION

[0039] 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.

[0040] Example:

[0041] See also Figure 1-4A mechanical parts fastening connection structure comprises a part 1, a part 2, a bolt 3 and a nut 4. The bottom end of the bolt 3 passes through the part 1 and the part 2, and is threadedly connected with the nut 4. A circular groove 5 is provided on the top of the bolt 3. Limiting grooves 6 are provided on both side walls of the bottom of the circular groove 5. T-shaped pressure columns 7 are arranged in the limiting grooves 6. The ends of the two T-shaped pressure columns 7 that are away from each other extend to the outside of the bolt 3. The sides of the two T-shaped pressure columns 7 that are close to each other are fixedly connected with an inclined block 8. A reset spring 9 is arranged between the inner side wall of the T-shaped pressure column 7 and the inner wall of the limiting groove 6. A moving block 10 is threadedly connected to the inner wall of the limiting groove 6. An extrusion block 11 is fixedly connected to the bottom of the moving block 10. The extrusion block 11 is located between the two oblique blocks 8. When in use, the elastic force generated by the deformation of the reset spring 9 can be used to achieve rapid reset of the T-shaped pressure column 7.

[0042] See also Figure 1 and Figure 2 Part 1 and part 2 are both provided with mounting holes 12, and the bottom end of the bolt 3 passes through part 1 and part 2 2 in sequence through the mounting hole 12 and is threadedly connected with the nut 4.

[0043] See also Figure 4 A plurality of threaded holes 13 are formed on the outer periphery of the nut 4 , and a fastening screw 14 is threadedly connected inside the threaded hole 13 . One end of the fastening screw 14 extends to the inner side of the nut 4 and abuts against the outer periphery of the bolt 3 .

[0044] See also Figure 3 The ends of the T-shaped pressure columns 7 that are away from each other pass through the bolts 3 and abut against the side walls of the mounting holes 12 on the part 1.

[0045] See also Figure 3 The inner wall of the circular groove 5 is provided with an internal thread, and the outer periphery of the moving block 10 is provided with a matching external thread. The circular groove 5 and the moving block 10 are threadedly connected through the internal thread and the external thread.

[0046] See also Figure 2 A hexagonal anti-rotation groove 15 is provided at the top of part 1, and the hexagonal head of the bolt 3 is clamped in the hexagonal anti-rotation groove 15. When in use, the setting of the hexagonal anti-rotation groove 15 can prevent the bolt 3 and the nut 4 from rotating synchronously when the nut 4 is tightened.

[0047] See also Figure 3 A hexagonal slot 16 is provided at the top center of the moving block 10 .

[0048] When in use: stack part 1 and part 2 2 and align the corresponding mounting holes 12, then pass the bottom ends of the bolts 3 through the mounting holes 12 on part 1 and part 2 2 in turn, then install the nuts 4 and tighten them, and the fixation of part 1 1 and part 2 2 is completed. At this time, use a hexagonal wrench to insert the hexagonal slot 16, and screw the moving block 10 into the circular groove 5. During the screwing process of the moving block 10, the extrusion block 11 is driven to move downward and squeeze the inclined surfaces of the two inclined blocks 8. When the inclined blocks 8 are squeezed, the T-shaped pressure column 7 can be driven to move outward and tightly against the side wall of the mounting hole 12 to limit the position of the bolt 3, and finally the fastening screw 14 on the nut 4 is screwed inward so that the end of the fastening screw 14 is tightly against the outer periphery of the bolt 3. The overall operation can effectively prevent the loosening of the bolt 3 and the nut 4 caused by vibration, greatly improve the stability of its structure, and make the connection between part 1 and part 2 2 more firm.

[0049] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They 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 orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0050] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 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 invention can be understood according to specific circumstances.

[0051] 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 mechanical parts fastening connection structure, comprising a part 1 (1), a part 2 (2), a bolt (3) and a nut (4), wherein the bottom end of the bolt (3) passes through the part 1 (1) and the part 2 (2) and is threadedly connected to the nut (4), characterized in that: A circular groove (5) is provided on the top of the bolt (3), and limiting grooves (6) are provided on both side walls of the bottom of the circular groove (5). A T-shaped pressure column (7) is arranged in the limiting groove (6), and the ends of the two T-shaped pressure columns (7) that are away from each other extend to the outside of the bolt (3). The sides of the two T-shaped pressure columns (7) that are close to each other are fixedly connected with an inclined block (8), and a return spring (9) is arranged between the inner side wall of the T-shaped pressure column (7) and the inner wall of the limiting groove (6). A moving block (10) is threadedly connected inside the limiting groove (6), and an extrusion block (11) is fixedly connected to the bottom of the moving block (10), and the extrusion block (11) is located between the two oblique blocks (8).

2. A mechanical parts fastening connection structure according to claim 1, characterized in that: The part one (1) and the part two (2) are both provided with mounting holes (12), and the bottom end of the bolt (3) passes through the part one (1) and the part two (2) in sequence through the mounting holes (12) and is threadedly connected with the nut (4).

3. The mechanical parts fastening connection structure according to claim 1, characterized in that: A plurality of threaded holes (13) are formed on the outer periphery of the nut (4), and a fastening screw (14) is threadedly connected inside the threaded hole (13). One end of the fastening screw (14) extends to the inner side of the nut (4) and abuts against the outer periphery of the bolt (3).

4. The mechanical parts fastening connection structure according to claim 1, characterized in that: One end of the T-shaped pressure column (7) that is away from each other passes through the bolt (3) and abuts against the side wall of the mounting hole (12) on the part one (1).

5. The mechanical parts fastening connection structure according to claim 1, characterized in that: The inner wall of the circular groove (5) is provided with an internal thread, and the outer periphery of the moving block (10) is provided with a matching external thread. The circular groove (5) and the moving block (10) are threadably connected via the internal thread and the external thread.

6. The mechanical parts fastening connection structure according to claim 1, characterized in that: A hexagonal anti-rotation groove (15) is provided on the top of the part one (1), and the hexagonal head of the bolt (3) is clamped in the hexagonal anti-rotation groove (15).

7. The mechanical parts fastening connection structure according to claim 1, characterized in that: A hexagonal slot (16) is provided at the top center of the moving block (10).

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