High-strength hexagonal head bolt

Abstract

This utility model discloses a high-strength hexagonal head bolt, including a bolt and a nut. The bolt has a through groove and several extrusion grooves connected to the through groove. An extrusion block is slidably installed in the extrusion groove. The extrusion block is hollow. An arc-shaped piece is installed in the through groove, and the extrusion block abuts against the arc-shaped piece. The top of the through groove has a thread for threaded connection of a push rod. Several annular plates are spaced apart on the push rod, and the annular plates are arc-shaped to fit the arc-shaped piece. Through the cooperation between the annular plates and the liquid storage cavity, after the hexagonal head bolt is installed, the limited extrusion block can break the annular plates, allowing the adhesive in the liquid storage cavity to flow out, thereby bonding the bolt to the nut or hole together, preventing loosening and increasing strength. The extrusion groove is located at the bottom of the thread and cooperates with the connecting rope, allowing the annular plate at the nut to break separately or the annular plate within the mounting surface to break together, improving applicability.

Description

Technical Field

[0001] This utility model relates to the field of hexagonal head bolt technology, and in particular to a high-strength hexagonal head bolt. Background Technology

[0002] In the existing technology, hexagonal head bolts are often installed in pre-drilled holes and tightened with nuts. However, when the mounting surface is frequently vibrated, the hexagonal head bolts and nuts are prone to loosening, which reduces the overall strength of the hexagonal head bolts and makes them prone to falling off or breaking. Utility Model Content

[0003] Therefore, it is necessary to provide a high-strength hexagonal head bolt to address the technical problem of easy loosening of hexagonal head bolts and nuts leading to reduced strength.

[0004] To achieve the above objectives, this utility model provides a high-strength hexagonal head bolt, comprising a bolt and a nut. The bolt has a through groove and several extrusion grooves connected to the through groove. An extrusion block is slidably installed in the extrusion groove. The extrusion block is hollow. An arc-shaped piece is installed in the through groove, and the extrusion block abuts against the arc-shaped piece. The top of the through groove has a thread for threaded connection of a push rod. Several annular plates are spaced apart on the push rod. The annular plates are arc-shaped to fit the arc-shaped piece. The annular plates and the push rod form a liquid storage cavity for filling adhesive.

[0005] Preferably, the extrusion groove is located at the root of the thread on the bolt.

[0006] Preferably, the push rod is equipped with a connecting rope that connects the upper and lower ends of the liquid storage chamber.

[0007] Preferably, the extrusion block is adhered to the arc-shaped sheet.

[0008] Preferably, both the extrusion block and the arc-shaped plate are provided with a plurality of liquid guiding holes.

[0009] Preferably, a sealing gasket one is installed inside the push rod, and a sealing gasket two is installed inside the through groove, with the sealing gasket one and the sealing gasket two being configured to cooperate.

[0010] Compared with existing technologies, this technical solution has at least one of the following beneficial effects: 1. Through the matching arrangement of the annular plate and the liquid storage chamber, after the hexagonal head bolt is installed, the limited extrusion block can break the annular plate, allowing the adhesive in the liquid storage chamber to flow out, thereby bonding the bolt and nut or hole together, preventing loosening and improving strength. 2. By setting the extrusion groove at the bottom of the thread and the connecting rope, the annular plate at the nut can be broken separately or the annular plate in the mounting surface can be broken together, thus improving applicability. Attached Figure Description

[0011] Figure 1 This is a front sectional view of an embodiment of the present invention; Figure 2 This is an embodiment of the present utility model. Figure 1 Enlarged view of point A in the middle; Figure 3 This is an embodiment of the present utility model. Figure 1 Enlarged view at point B in the middle; Figure 4 This is a perspective view of an arc-shaped piece according to an embodiment of the present invention; In the diagram, 1. Bolt; 2. Nut; 3. Through groove; 4. Extrusion groove; 5. Extrusion block; 6. Arc-shaped piece; 7. Push rod; 8. Annular plate; 9. Liquid storage chamber; 10. Connecting rope; 11. Liquid guide hole; 12. Sealing gasket one; 13. Sealing gasket two. Detailed Implementation

[0012] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0013] Please see Figures 1 to 4 This application provides a high-strength hexagonal head bolt, including a bolt 1 and a nut 2. The bolt 1 has a through groove 3 and several compression grooves 4 connected to the through groove 3. A compression block 5 is slidably installed within the compression groove 4. The compression block 5 is hollow. An arc-shaped piece 6 is fixedly installed within the through groove 3. The arc-shaped piece 6 can be a metal piece with a certain elasticity. The arc-shaped piece 6 can be fixedly installed within the through groove 3 from only one end near the bolt head of the bolt 1. The compression block 5 and the arc-shaped piece 6... The push rod 7 is threaded at the top of the through groove 3 for threaded connection. The push rod 7 and the through groove 3 are in clearance fit, and the clearance is sufficient to accommodate the flattened arc-shaped piece 6. Several annular plates 8 are installed on the push rod 7 at intervals, with the intervals set as push rod 7-annular plate 8-push rod 7. The push rod 7 and the annular plate 8 are fixedly connected. The annular plate 8 can be a brittle plastic plate. The annular plate 8 is an arc shape adapted to the arc-shaped piece 6. The annular plate 8 and the push rod 7 form a liquid storage cavity 9 filled with adhesive.

[0014] In this embodiment, before installation, the push rod 7 can be spiraled downward to a suitable position in the through groove 3. When spiraling downward, the arc-shaped piece 6 can drive the extrusion block 5 to slide outward, so the annular plate 8 will not be subjected to a large external force and break. After spiraling downward, the arc-shaped setting on the annular plate 8 that is adapted to the arc-shaped piece 6 will not affect the extrusion block 5 from retracting back into the extrusion groove 4 and the arc-shaped piece 6 from maintaining its arc-shaped state. After installing bolt 1 and screwing nut 2 onto bolt 1, push rod 7 can be driven to rotate upwards. At this time, the extrusion block 5, which is not in the mounting surface or not at nut 2, can be pushed by push rod 7 to move arc-shaped piece 6, thereby causing it to slide out from extrusion groove 4. Thus, push rod 7 and annular plate 8 can move upwards without causing annular plate 8 to break. However, the extrusion block 5 in the hole on the mounting surface or at nut 2 is limited and cannot slide outwards. Therefore, as push rod 7 continues to rotate upwards, extrusion block 5 can limit the lower push rod 7, while the upper push rod 7 continues to move upwards, eventually causing annular plate 8 between the two to break. The adhesive in the liquid storage chamber 9 can flow out and flow outwards through the hollow setting of extrusion block 5, thereby bonding bolt 1 to hole or nut 2, improving the connection stability of the installation, and avoiding loosening that could cause parts to fall off or breakage caused by vibration displacement of the two mounting plates.

[0015] In some embodiments, to facilitate control of the breakage of the annular plate 8, a compression groove 4 is provided at the root of the thread on the bolt 1. Since the hole is pre-drilled, and the threads of the bolt 1 and nut 2 are interlaced, when the compression groove 4 is provided at the root of the thread, the compression block 5 in the hole of the mounting hole can move outward a certain distance, that is, the distance from the crest to the trough of the thread. However, the compression block 5 at the nut 2 cannot move outward due to the restriction of the thread on the nut 2. Therefore, the annular plate 8 at the nut 2 will break first, thereby achieving the effect of breaking only the annular plate 8 at this location, so that the bolt 1 will not stick to the hole, which is not conducive to the subsequent replacement of the bolt 1.

[0016] In some embodiments, to further improve practicality, a connecting rope 10 is installed on the push rod 7 to connect the upper and lower ends of the liquid storage chamber 9. The connecting rope 10 is used to connect the push rod 7 at the upper and lower ends inside the liquid storage chamber 9, so that when the annular plate 8 near the bolt head of the bolt 1 breaks first, the subsequent annular plates 8 that need to be broken can continue to break through the pull of the connecting rope 10, while the annular plates 8 not in the nut 2 or the hole can continue to slide upward unaffected.

[0017] In some embodiments, to facilitate the installation of the extrusion block 5, it is attached to the arc-shaped piece 6. After the push rod 7 is screwed in, adhesive can be applied to the parts of the extrusion block 5 that do not affect the flow of liquid in the hollow portion, and then it can be inserted through the extrusion groove 4 to be attached to the arc-shaped piece 6, thus making the extrusion block 5 less likely to fall off. During operation, when the push rod 7 pushes out the extrusion block 5 that is not in the nut 2 or the hole, the arc-shaped piece 6 and the extrusion block 5 will move relative to each other, so that the extrusion block 5 that falls off can be recycled.

[0018] In some embodiments, to facilitate the flow of adhesive liquid, both the extrusion block 5 and the arc-shaped plate 6 are provided with a plurality of liquid guiding holes 11.

[0019] In some embodiments, to improve the sealing between the push rod 7 and the through groove 3, a sealing gasket 12 is fixedly installed inside the push rod 7, and a sealing gasket 23 is fixedly installed inside the through groove 3. The sealing gasket 12 and the sealing gasket 23 are configured to cooperate with each other. The sealing gasket 23 is located closer to the bolt head of the bolt 1 than the sealing gasket 12, so that the two can still abut and seal after the push rod 7 is rotated outward.

[0020] The fixed connection and rotating installation in the above embodiments can all be achieved by welding, screw fasteners and other forms in the prior art, and the rotating installation can be achieved by bearings, circular rotating blocks and circular grooves. All of the above components are standard parts, and those that are not standard parts can also be specially customized, so the inventor will not elaborate further.

[0021] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0022] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A high-strength hexagonal head bolt, comprising a bolt (1) and a nut (2), characterized in that, The bolt (1) is provided with a through groove (3) and a number of extrusion grooves (4) are provided on the bolt (1). The extrusion grooves (4) are connected to the through grooves (3). An extrusion block (5) is slidably installed in the extrusion grooves (4). The extrusion block (5) is hollow. An arc-shaped piece (6) is installed in the through grooves (3). The extrusion block (5) abuts against the arc-shaped piece (6). The top of the through grooves (3) is provided with a thread for threaded connection of the push rod (7). A number of annular plates (8) are provided on the push rod (7) at intervals. The annular plates (8) are arc-shaped to fit the arc-shaped piece (6). The annular plates (8) and the push rod (7) form a liquid storage cavity (9) filled with adhesive.

2. The high-strength hexagonal head bolt according to claim 1, characterized in that, The extrusion groove (4) is located at the root of the thread on the bolt (1).

3. The high-strength hexagonal head bolt according to claim 1, characterized in that, The push rod (7) is equipped with a connecting rope (10) that connects the upper and lower ends of the liquid storage chamber (9).

4. The high-strength hexagonal head bolt according to claim 1, characterized in that, The extrusion block (5) is adhered to the arc-shaped piece (6).

5. The high-strength hexagonal head bolt according to claim 1, characterized in that, Both the extrusion block (5) and the arc-shaped plate (6) are provided with a number of liquid guiding holes (11).

6. The high-strength hexagonal head bolt according to claim 1, characterized in that, A sealing gasket 1 (12) is installed inside the push rod (7), and a sealing gasket 2 (13) is installed inside the through groove (3). The sealing gasket 1 (12) and the sealing gasket 2 (13) abut and seal.

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