A vibration-proof fastening bolt

Abstract

The utility model discloses a vibration anti-loosening fastening bolt, comprising a screw head and a screw rod fixed at the lower end of the screw head, wherein the screw head is provided with a groove penetrating the screw head, and a through groove penetrating is provided on the side wall of the groove located at the upper end of the screw rod; a slider is movably arranged in the through groove, and the inner lower end of the inner side of the slider is fixedly connected with a limiting block, and the spacing between the limiting blocks at both ends is not less than the inner width of the through groove, and the outer end of the slider is fixedly connected with a cone nail, and the inner side of the upper end of the groove is threadedly connected with a fixing button; by arranging the fixing button and the slider, the fixing button is rotated to squeeze the slider to move outward, and the slider drives the cone nail to move outward, and then the cone nail and the inner wall of the hole form a lateral gripping force, so that the screw and the screw head can avoid loosening up and down when subjected to vibration, thereby reinforcing the installation firmness of the screw and the screw head; and the fixing button can drive the slider inward when moving upward, thereby facilitating the disassembly of the screw and the screw head.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, in particular to a vibration-proof loosening fastening bolt. Background Art

[0002] A bolt consists of a screw head and a screw rod. Two workpieces are fixed together by the bolt. The screw rod is driven to rotate by rotating the screw head, and the workpieces are connected and fixed by the threaded connection.

[0003] However, the workpiece will vibrate during operation and movement, and the vibration will cause the bolt to jump up and down in a small range, and then the connecting bolts between the workpieces will loosen due to the vibration, resulting in gaps between the workpieces that are difficult to fix, and serious danger of workpiece detachment. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a vibration-proof fastening bolt, which solves the problems raised by the above-mentioned background technology.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a vibration anti-loosening fastening bolt, comprising a screw head and a screw rod fixed at the lower end of the screw head, a groove penetrating the screw head is provided in the screw rod, a through groove is provided on the side wall of the groove located at the upper end of the screw rod, a slider is movably arranged in the through groove, the inner lower end of the slider is fixedly connected to a limiting block, the spacing between the limiting blocks at both ends is not less than the inner width of the through groove, the outer end of the slider is fixedly connected to a cone nail, the inner side of the upper end of the groove is threadedly connected to a fixing button, the fixing button is matched with the inner end of the slider, the lower end of the fixing button is provided with an auxiliary part, and the auxiliary part is slidably arranged on the inner side of the groove.

[0006] Preferably: the auxiliary component includes a sliding rod, a conical groove is provided at the upper end of the sliding rod, a connecting rod is fixedly connected to the inner side of the conical groove, a limiting groove is provided inside the fixing button, the connecting rod is rotatably arranged in the limiting groove, and a rotating block is fixedly connected to the end thereof, an extrusion groove is provided at the lower end of the sliding block, and the extrusion groove is matched with the edge of the sliding rod.

[0007] Preferably, an embedded hexagonal groove is provided at the upper end of the fixing button, and a sealing ring is fixedly connected to the end edge of the fixing button.

[0008] Preferably, the upper end surface of the fixing button is arranged below the upper end surface of the screw head.

[0009] Preferably, the number of the cone nails is multiple, and the cone nails are arranged with equal spacing.

[0010] Preferably, the longitudinal length of the slider is set to be one third of the longitudinal length of the screw.

[0011] The beneficial effects of the utility model are:

[0012] (1) The utility model provides a vibration-proof tightening bolt; by providing a fixing button and a slider, the fixing button is rotated to squeeze the slider to move outward, and the slider drives the cone nail to move outward, so that the cone nail and the inner wall of the hole form a lateral gripping force, so that the screw and the screw head can be prevented from loosening up and down when subjected to vibration, thereby strengthening the installation firmness of the screw and the screw head; and the fixing button can drive the slider inward when moving upward, so that the removal of the screw and the screw head can be facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the fixing button and the limiting groove of the utility model;

[0017] Figure 4 yes Figure 2 The enlarged structural diagram at A in the middle;

[0018] Figure 5 yes Figure 3 Enlarged structural diagram at B in the middle.

[0019] In the figure: 1, screw head; 2, screw rod; 3, through groove; 4, groove; 5, fixing button; 6, limit groove; 7, sliding rod; 8, conical groove; 9, connecting rod; 10, rotating block; 11, sliding block; 12, conical nail; 13, extrusion groove; 14, limit block. DETAILED DESCRIPTION

[0020] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Figure 1-Figure 5 As shown, a vibration anti-loosening fastening bolt comprises a screw head 1 and a screw rod 2 fixed at the lower end of the screw head 1, and is characterized in that: a groove 4 penetrating the screw head 1 is provided in the screw rod 2, a through groove 3 is provided on the side wall of the groove 4 located at the upper end of the screw rod 2, a slider 11 is movably provided in the through groove 3, a limit block 14 is fixedly connected to the inner lower end of the slider 11, the spacing between the limit blocks 14 at both ends is not less than the inner width of the through groove 3, a cone nail 12 is fixedly connected to the outer end of the slider 11, a fixing button 5 is threadedly connected to the inner side of the upper end of the groove 4, the fixing button 5 is matched with the inner end of the slider 11, and an auxiliary part is provided at the lower end of the fixing button 5, and the auxiliary part is located at the inner side of the groove 4. The screw head 1 and the screw rod 2 are integrally formed, and a groove 4 is opened from the inside to the outside of the screw rod 2, and the groove 4 passes through the screw head 1. A through groove 3 located on the screw rod 2 is opened from the inside to the outside of the groove 4, and a slider 11 that can slide into the through groove 3 is movably arranged in the groove 4. The outer end of the slider 11 is fixedly connected with a cone nail 12. When the fixing button 5 at the upper end is rotated toward the thread at the lower end, the slider 11 is pushed outward, and the cone nail 12 forms a gripping force with the inner wall of the hole in the wall, and is fixed inside the wall hole by the sharpness of the cone nail 12. At this time, when the wall or the workpiece vibrates, no up and down vibration will be generated in the same direction as the screw rod 2, thereby avoiding the loosening of the screw 2 and the screw head 1.

[0023] See also Figure 2 , Figure 3 and Figure 4 The auxiliary part comprises a slide bar 7, the upper end of which is provided with a conical groove 8, the inner side of which is fixedly connected with a connecting rod 9, a limiting groove 6 is provided inside the fixing button 5, the connecting rod 9 is rotatably arranged in the limiting groove 6, and a rotating block 10 is fixedly connected with the end thereof, and an extrusion groove 13 is provided at the lower end of the slider 11, the extrusion groove 13 is matched with the edge of the slide bar 7. When the screw rod 2 needs to be disassembled, the fixing button 5 is rotated outwardly, and the restriction of the fixing button 5 and the slider 11 is gradually released as the fixing button 5 moves upward, and then the rotating block 10 and the connecting rod 9 are driven upward as the fixing button 5 moves upward, and the connecting rod 9 drives the slide bar 7 to move upward, and a conical groove 8 is provided at the upper end of the slide bar 7, and the edge of the slide bar 7 penetrates into the extrusion groove 13, and the extrusion groove 13 is inclined. Then, the slider 11 is pulled inwardly by moving the slide bar 7 upward, so that the cone nail 12 is separated from the inner wall of the hole and the restriction is released, and the screw head 1 and the screw 2 can be disassembled.

[0024] See also Figure 3 : An embedded hexagonal groove is provided at the upper end of the fixing button 5, and a sealing ring is fixedly connected to the end edge of the fixing button 5. The embedded hexagonal groove can avoid slipping when installing the fixing button 5, and the embedded hexagonal groove can facilitate rotation. A sealing ring is fixed on the outer edge of the fixing button 5 to prevent external water from entering between the fixing button 5 and the groove 4 to prevent rust.

[0025] See also Figure 1 : The upper end surface of the fixing button 5 is arranged below the upper end surface of the screw head 1. When the fixing button 5 is fully rotated to the bottom end, the upper end surface of the fixing button 5 and the upper end surface of the screw head 1 are offset, and the fixing button 5 is arranged at the lower end of the upper end surface of the screw head 1, so that the fixing button 5 can be protected by the screw head 1.

[0026] See also Figure 4 : The number of the conical nails 12 is set to be multiple, and the spacing between the conical nails 12 is set to be equal. The number of the conical nails 12 is multiple in order to be able to form a more secure grip with the inner wall of the hole, provide a more stable fixing force, and prevent the screw 2 and the screw head 1 from loosening during vibration.

[0027] See also Figure 3 : The longitudinal length of the slider 11 is set to one third of the longitudinal length of the screw rod 2. The setting of one third of the length can provide the screw rod 2 and the screw head 1 with a more stable supporting force after installation, thereby preventing the screw rod 2 and the screw head 1 from loosening during vibration.

[0028] During use: after the screw head 1 and the screw rod 2 are installed in the hole, the slider 11 is squeezed outward by rotating the fixing button 5, and the slider 11 drives the cone nail 12 to move outward, so that the cone nail 12 forms a lateral gripping force with the inner wall of the hole, so that the screw rod 2 and the screw head 1 can avoid loosening up and down when subjected to vibration, thereby reinforcing the installation firmness of the screw rod 2 and the screw head 1; and the fixing button 5 can drive the slider 11 inward when moving upward, thereby facilitating the disassembly of the screw rod 2 and the screw head 1.

[0029] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A vibration-proof fastening bolt, comprising a screw head (1) and a screw rod (2) fixed at the lower end of the screw head (1), characterized in that: The screw rod (2) is provided with a groove (4) penetrating the screw head (1), and a through groove (3) is provided on the side wall of the groove (4) located at the upper end of the screw rod (2). A slider (11) is movably arranged in the through groove (3), and a limit block (14) is fixedly connected to the inner lower end of the slider (11), and the spacing between the limit blocks (14) at both ends is not less than the inner width of the through groove (3). The outer end of the slider (11) is fixedly connected with a cone nail (12), and the inner side of the upper end of the groove (4) is threadedly connected with a fixing button (5), and the fixing button (5) is matched with the inner end of the slider (11). The lower end of the fixing button (5) is provided with an auxiliary part, and the auxiliary part is slidably arranged on the inner side of the groove (4).

2. A vibration-proof fastening bolt according to claim 1, characterized in that: The auxiliary component comprises a slide bar (7), a conical groove (8) is provided at the upper end of the slide bar (7), a connecting rod (9) is fixedly connected to the inner side of the conical groove (8), a limiting groove (6) is provided inside the fixing button (5), the connecting rod (9) is rotatably arranged in the limiting groove (6), and a rotating block (10) is fixedly connected to the end thereof, and an extrusion groove (13) is provided at the lower end of the slider (11), and the extrusion groove (13) is matched with the edge of the slide bar (7).

3. A vibration-proof fastening bolt according to claim 1, characterized in that: An embedded hexagonal groove is provided at the upper end of the fixing button (5), and a sealing ring is fixedly connected to the end edge of the fixing button (5).

4. A vibration-proof fastening bolt according to claim 1, characterized in that: The upper end surface of the fixing button (5) is arranged below the upper end surface of the screw head (1).

5. The vibration-proof fastening bolt according to claim 1, characterized in that: The number of the conical nails (12) is multiple, and the conical nails (12) are arranged at equal intervals.

6. A vibration-proof fastening bolt according to claim 1, characterized in that: The longitudinal length of the sliding block (11) is set to be one third of the longitudinal length of the screw rod (2).

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