Anti-seismic bolt

Abstract

The utility model relates to the technical field of bolts and nuts, and provides an anti-seismic bolt which comprises a bolt body, a nut and a nut, the elastic pieces are arranged in the through grooves in a sliding mode, and the multiple elastic pieces are symmetrically arranged; the clamping piece is arranged on the bolt body, the clamping piece is provided with a limiting face and an extrusion face, the extrusion face is located outside the through groove, and the elastic piece abuts against the extrusion face; and the nut is in threaded connection with the bolt main body, and after the nut compresses the extrusion surface, the extrusion surface compresses the elastic piece. By means of the technical scheme, the problem that in the prior art, the anti-seismic performance is poor is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts and nuts, and in particular to a seismic-resistant bolt. Background Art

[0002] Bolts are widely used as connectors in many fields, including construction and machinery. However, traditional bolts have obvious drawbacks when exposed to vibration environments.

[0003] During earthquakes or other severe vibrations, the impact forces experienced by ordinary bolts can easily loosen their connections. This is because traditional bolts are simple in structure, relying solely on the threaded fit between the nut and bolt for securement. When the external forces generated by vibrations are repeatedly applied, the nut gradually loosens, which can lead to a decrease in the stability of the connection. For example, in a building, loose bolts connecting a steel frame can cause structural deformation, compromising the safety of the entire building. In mechanical equipment, loose bolts can cause relative displacement between components, impacting normal operation and potentially causing malfunctions and accidents. Utility Model Content

[0004] The utility model provides a seismic-resistant bolt, which solves the problem of poor seismic performance of bolts in the related art.

[0005] The technical solution of the utility model is as follows:

[0006] A seismic-resistant bolt, comprising:

[0007] a bolt body having a through slot;

[0008] an elastic member, slidably disposed in the through slot, wherein a plurality of the elastic members are symmetrically arranged;

[0009] a clamping member, provided on the bolt body, the clamping member having a limiting surface and an extrusion surface, the extrusion surface being located outside the through slot, and the elastic member abutting against the extrusion surface;

[0010] A nut is threadedly connected to the bolt body. After the nut presses the extrusion surface, the extrusion surface presses the elastic member.

[0011] Optionally, the length direction of the through slot is perpendicular to the axial direction of the bolt body.

[0012] Optionally, the elastic member includes:

[0013] There are a plurality of sliding blocks, which are symmetrically arranged in the through slot about the axis of the bolt body, and one end of each sliding block abuts against the extrusion surface;

[0014] A spring is arranged in the through groove, with two ends of the spring respectively abutting between adjacent sliding blocks, and the spring is used to provide a force for the sliding block to press the extrusion surface.

[0015] Optionally, the clamping member includes:

[0016] A fixing ring, rotatably sleeved on the bolt body;

[0017] There are a plurality of bending plates, which are spaced apart and arranged on the circumference of the outer wall of the fixing ring, and the limiting surface is the bottom surface of the bending plate;

[0018] An arc-shaped side plate is provided on the bent plate, the arc-shaped side plate is coaxially arranged with the bolt body, the extrusion surface is the arc-shaped inner side surface, and the sliding block abuts against the arc-shaped side plate.

[0019] Optionally, the inner side of the bending plate has a support bar, which is arranged obliquely. After the nut is pressed against the extrusion surface, the support bar is used to provide the bending plate with force to press the nut.

[0020] Optionally, the bending portion of the bending plate is arc-shaped.

[0021] Optionally, the nut includes:

[0022] There are a plurality of clamping plates, which are spaced apart and arranged on one end face of the nut. The clamping plates are arranged obliquely, and one end of the clamping plate away from the nut abuts against the thread of the bolt body;

[0023] A circular ring is provided on the other end face of the nut away from the other end face, and the circular ring abuts against the extrusion surface.

[0024] Optionally, the bent plate has a through hole, and further comprises:

[0025] A protrusion is provided on the bolt body. After the fixing ring drives the bending plate to rotate, the protrusion is clamped in the through hole.

[0026] Optionally, the outer surface of the arc-shaped side plate has an anti-slip groove or a thread adapted to the nut.

[0027] Optionally, the clamping plate has a clamping block at one end away from the nut, and the clamping block is clamped with the thread groove of the bolt body.

[0028] The working principle and beneficial effects of the utility model are as follows:

[0029] When subjected to vibration, the symmetrically arranged elastic elements of the bolt in this utility model evenly distribute forces in all directions, effectively buffering vibration. The clip is mounted on the bolt body, with its extrusion surface located outside the through-slot, in close contact with the elastic element, forming an interactive system. The nut is threadedly connected to the bolt body. During tightening, it applies pressure to the extrusion surface of the clip, ensuring a tight fit and achieving earthquake resistance. During installation, the bolt body is first threaded through the component to be connected. Next, the clip is installed in the appropriate position on the bolt body. The elastic element is then placed into the through-slot, contacting the extrusion surface of the clip. Finally, the nut is screwed onto the bolt body. As the nut is tightened, the nut gradually compresses the clip, and the extrusion surface of the clip transfers pressure to the elastic element, causing it to deform elastically. During use, when subjected to vibration, the tendency for loosening caused by vibration is offset by the elastic force of the elastic element. Because the elastic element can slide within the through-slot, it can adaptively adjust the force applied to the clip according to the direction and magnitude of the vibration, thereby maintaining a stable connection between the nut and the bolt body. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The preferred embodiments will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0031] Figure 1 This is a structural diagram of the bolt body and the clamping member of the utility model;

[0032] Figure 2 This is a schematic diagram of the bolt body and nut structure of the utility model;

[0033] Figure 3 This is a side view of the bolt body of the utility model;

[0034] Figure 4 for Figure 3 Cross-sectional view at AA in the middle;

[0035] Figure 5 This is a schematic diagram of the nut structure of the utility model.

[0036] In the figure: 1. Bolt body, 101. Through groove, 5. Elastic member, 3. Snap-fit ​​member, 313. Limiting surface, 314. Extrusion surface, 4. Nut, 501. Sliding block, 502. Spring, 30. Fixing ring, 31. Bent plate, 32. Arc-shaped side plate, 311. Support bar, 41. Snap-fit ​​plate, 42. Ring, 312. Through hole, 2. Protrusion, 321. Anti-slip groove, 411. Block. DETAILED DESCRIPTION

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0038] To simplify the drawings, only the parts relevant to the utility model are schematically shown in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0039] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0040] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0041] Reference Figures 1 to 5 , which is an embodiment of the present utility model, proposes a seismic-resistant bolt, including: a bolt body 1, having a through groove 101; an elastic member 5, slidably arranged in the through groove 101, and a plurality of elastic members 5 are symmetrically arranged; a clamping member 3, provided on the bolt body 1, the clamping member 3 having a limiting surface 313 and an extrusion surface 314, the extrusion surface 314 is located outside the through groove 101, and the elastic member abuts against the extrusion surface 314; a nut 4, threadedly connected to the bolt body 1, after the nut 4 presses the extrusion surface 314, the extrusion surface 314 presses the elastic member 5.

[0042] In the above scheme, the through groove 101 is opened on the screw of the bolt body 1, and the through groove 101 is horizontally arranged. There are several elastic members 5, which are symmetrically arranged in the through groove 101. When subjected to vibration, the symmetrically arranged elastic members 5 can evenly distribute the force in all directions and effectively buffer the vibration. The clamping member 3 is installed on the bolt body 1, and the extrusion surface 314 is located outside the through groove 101, in close contact with the elastic member 5, forming an interactive system. The nut 4 is connected to the bolt body 1 through a thread. During the tightening process, it can apply pressure to the extrusion surface 314 of the clamping member 3, so that the entire structure fits tightly and achieves an anti-seismic function. During installation, first pass the bolt body 1 through the component to be connected. Then, install the clamping member 3 at the appropriate position of the bolt body 1. Then put the elastic member 5 into the through groove 101 so that it contacts the extrusion surface 314 of the clamping member 3. Finally, screw the nut 4 onto the bolt body 1. During tightening of the nut 4, the nut 4 gradually compresses the clamping member 3. The extrusion surface 314 of the clamping member 3 then transmits the pressure to the elastic member 5, causing the elastic member 5 to elastically deform. During use, when subjected to vibration, the loosening tendency caused by the vibration is offset by the elastic force of the elastic member 5. Because the elastic member 5 can slide within the through slot 101, it can adaptively adjust the force acting on the clamping member 3 according to the direction and magnitude of the vibration, thereby maintaining a stable connection between the nut 4 and the bolt body 1.

[0043] Furthermore, the length direction of the through slot 101 is perpendicular to the axial direction of the bolt body 1 .

[0044] In the above scheme, the length direction of the through slot 101 of the bolt body 1 is perpendicular to the axial direction of the bolt body 1. The vertical setting enables the elastic member 5 to better disperse the force in the direction perpendicular to the axis of the bolt when it is subjected to the force transmitted from the nut 4 and the clamping member 3. Compared with other possible directions of the through slot 101, this vertical direction can more effectively utilize the space of the through slot 101, provide a more stable installation and working environment for the elastic member 5, and make the elastic member 5 more reliable when withstanding the complex forces generated by vibration. In a vibration environment, the force generated by the vibration acts on the connection between the nut 4 and the bolt body 1 in all directions. The through slot 101 enables the elastic member 5 to better respond to the vibration components perpendicular to the axis of the bolt, and cushion these vibrations through elastic deformation, thereby reducing the impact of vibration on the loosening of the nut 4.

[0045] Furthermore, the elastic member 5 includes: a sliding block 501, which is provided in a plurality of numbers, and the plurality of sliding blocks 501 are symmetrically arranged in the through groove 101 about the axis of the bolt body 1, and one end of the sliding block 501 abuts against the extrusion surface 314; a spring 502, which is provided in the through groove 101, and the two ends of the spring 502 abut against adjacent sliding blocks 501 respectively, and the spring 502 is used to provide a force for the sliding block 501 to press the extrusion surface 314.

[0046] In the above scheme, during installation, the sliding blocks 501 are placed into the through slots 101 in sequence, and then the springs 502 are installed between adjacent sliding blocks 501. When the nut 4 is tightened and applies pressure to the extrusion surface 314 of the clamping member 3, the extrusion surface 314 transfers the pressure to the sliding block 501, and the sliding block 501 slides toward the inside of the through slot 101, compressing the spring 502. The spring 502 stores elastic potential energy. In a vibrating environment, when the force generated by the vibration attempts to loosen the nut 4, the spring 502 pushes the sliding block 501 toward the extrusion surface 314, causing the extrusion surface 314 to be subjected to reverse pressure, thereby preventing the nut 4 from loosening. Due to the symmetrical arrangement of the sliding block 501, the spring 502 can work together in all directions, effectively resisting vibrations from different directions.

[0047] Furthermore, the clamping part 3 includes: a fixing ring 30, which is rotatably mounted on the bolt body 1; a plurality of bending plates 31, which are spaced apart on the circumference of the outer wall of the fixing ring 30, and the limiting surface 313 is the bottom surface of the bending plate 31; an arcuate side plate 32, which is arranged on the bending plate 31, and the arcuate side plate 32 is coaxially arranged with the bolt body 1, and the extrusion surface 314 is the inner surface of the arc, and the sliding block 501 abuts against the arcuate side plate 32.

[0048] In the above scheme, the material of the fixing ring 30 has a certain strength and wear resistance to adapt to long-term use and possible friction. There are several bent plates 31, which are evenly spaced around the outer wall of the fixing ring 30. The shape and size of the bent plate 31 are determined according to the overall size of the bolt, and its bottom surface serves as a limit surface 313, which plays a role in positioning and limiting during installation and use. The arc-shaped side plate 32 is set on the bent plate 31 and is coaxially arranged with the bolt body 1. The arc-shaped inner side surface of the arc-shaped side plate 32 serves as an extrusion surface 314, and its curvature and size are adapted to the sliding block 501 of the elastic member 5 to ensure close contact. If there is a vibration that causes the nut 4 to loosen, due to the connection between the arc-shaped side plate 32, the fixing ring 30 and the bent plate 31, the pressure will be transmitted to the entire clamping member 3 structure through the arc-shaped side plate 32. The fixing ring 30 can adaptively adjust its position during installation and use to ensure good fit between the clamping member 3, the nut 4 and the elastic member 5.

[0049] Furthermore, a support bar 311 is provided on the inner side of the bending plate 31 . The support bar 311 is arranged obliquely. After the nut 4 is pressed against the extrusion surface 314 , the support bar 311 is used to provide the bending plate 31 with a force to press the nut 4 .

[0050] In the above scheme, during the process of installing and tightening the nut 4, the nut 4 applies pressure to the extrusion surface 314 of the clamp 3, and this pressure is transmitted to the support bar 311 through the bent plate 31. Since the support bar 311 is arranged obliquely, when it is subjected to pressure, it will generate a component force perpendicular to the plane of the bent plate 31 and a component force along the plane of the bent plate 31. The vertical component force makes the bent plate 31 tend to hold the nut 4 tightly, thereby increasing the friction between the nut 4 and the clamp 3 and preventing the nut 4 from loosening. In a vibrating environment, even if an external force attempts to loosen the nut 4, the clamping force generated by the oblique structure of the support bar 311 can still effectively resist the loosening trend and keep the nut 4 stable.

[0051] Furthermore, the bending portion of the bending plate 31 is arc-shaped.

[0052] In the above solution, when the nut 4 is tightened and applies pressure to the bent plate 31, the pressure is transmitted through the bent plate 31. As the pressure passes through the bend, the curved structure evenly distributes the force along the curved surface, preventing stress concentration at a single point that could damage the bent plate 31. This curved bend ensures the structural integrity of the bent plate 31 during long-term use and in vibration environments, allowing it to continuously and stably perform its functions of gripping the nut 4 and transmitting force.

[0053] Furthermore, the nut 4 includes: a clamping plate 41, which is provided in plurality, and the clamping plates 41 are arranged at intervals on one end face of the nut 4, and the clamping plates 41 are arranged at an angle, and the clamping plates 41 are abutted on the thread of the bolt body 1 away from one end of the nut 4; a circular ring 42, which is provided on the other end face of the nut 4 away from the other end face, and the circular ring 42 abuts against the extrusion surface 314.

[0054] In the above scheme, when installing the nut 4, the nut 4 is screwed onto the bolt body 1. As the nut 4 is tightened, the clamping plate 41 gradually contacts the thread of the bolt body 1, and its inclination angle makes the clamping plate 41 more tightly abut against the thread under the guidance of the thread. At the same time, the ring 42 contacts the extrusion surface 314 of the clamping part 3 and begins to transmit pressure. In a vibration environment, when an external force attempts to loosen the nut 4, the close abutment between the clamping plate 41 and the thread of the bolt body 1 and the pressure transmission between the ring 42 and the extrusion surface 314 work together to prevent the nut 4 from loosening. The inclined arrangement of the clamping plate 41 enables it to generate a component force opposite to the loosening direction under the action of the external force generated by the vibration, further enhancing the anti-loosening ability of the nut 4.

[0055] Furthermore, the bending plate 31 has a through hole 312 and also includes: a protrusion 2, which is arranged on the bolt body 1. After the fixing ring 30 drives the bending plate 31 to rotate, the protrusion 2 is engaged in the through hole 312.

[0056] In the above scheme, when the fixing ring 30 drives the bent plate 31 to rotate to a certain position, the protrusion 2 on the bolt body 1 is aligned with the through hole 312 of the bent plate 31. At this time, the protrusion 2 is locked into the through hole 312, fixing the position of the bent plate 31. This ensures that the clamping member 3 will not rotate arbitrarily due to vibration or other external forces during use, ensuring the stability of the entire bolt connection structure. In a vibrating environment, even if a large external force is applied, the engagement of the protrusion 2 with the through hole 312 can still keep the position of the clamping member 3 stable, thereby maintaining the connection between the nut 4 and the bolt body 1.

[0057] Furthermore, the outer surface of the arc-shaped side plate 32 has an anti-slip groove 321 or a thread adapted to the nut 4 .

[0058] In the above scheme, when the nut 4 is tightened and contacts the curved side plate 32, if the outer surface of the curved side plate 32 is an anti-slip groove 321, the friction between the nut 4 and the curved side plate 32 will increase due to the anti-slip groove 321. When subjected to vibration, this increased friction can effectively prevent the nut 4 from sliding relative to the curved side plate 32, thereby reducing the possibility of the nut 4 loosening. If the outer surface of the curved side plate 32 is a thread that matches the nut 4, the threads of the two will engage with each other during the tightening process of the nut 4. In a vibrating environment, this threaded connection method has greater friction than simple surface contact, can better resist the force generated by vibration that causes the nut 4 to loosen, and makes the connection between the nut 4 and the clamping part 3 more stable.

[0059] Furthermore, an end of the clamping plate 41 away from the nut 4 has a clamping block 411 , and the clamping block 411 is clamped with the thread groove of the bolt body 1 .

[0060] In the above embodiment, when the block 411 at the end of the clamping plate 41 contacts the thread groove, it engages within the groove, guided by the threads. Under normal operation, the engagement of the block 411 with the thread groove strengthens the connection between the nut 4 and the bolt body 1. When subjected to vibration, the resulting loosening forces act on the nut 4, but the tight engagement of the block 411 with the thread groove prevents the nut 4 from rotating, thereby maintaining a stable position on the bolt body 1 and preventing loosening.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A seismic-resistant bolt, characterized in that: include: The bolt body (1) has a through slot (101); An elastic member (5) is slidably disposed in the through groove (101), and a plurality of the elastic members (5) are symmetrically arranged; A clamping member (3) is provided on the bolt body (1), the clamping member (3) having a limiting surface (313) and an extrusion surface (314), the extrusion surface (314) being located outside the through slot (101), and the elastic member (5) abutting against the extrusion surface (314); A nut (4) is threadedly connected to the bolt body (1); after the nut (4) presses the extrusion surface (314), the extrusion surface (314) presses the elastic member (5).

2. The anti-seismic bolt according to claim 1, characterized in that: The length direction of the through slot (101) is perpendicular to the axial direction of the bolt body (1).

3. The earthquake-resistant bolt according to claim 1, characterized in that: The elastic member (5) comprises: There are a plurality of sliding blocks (501), wherein the plurality of sliding blocks (501) are symmetrically arranged in the through groove (101) about the axis of the bolt body (1), and one end of the sliding block (501) abuts against the extrusion surface (314); The spring (502) is arranged in the through groove (101), and the two ends of the spring (502) are respectively abutted between the adjacent sliding blocks (501). The spring (502) is used to provide the sliding block (501) with a force to press the extrusion surface (314).

4. The anti-seismic bolt according to claim 3, characterized in that: The clamping member (3) comprises: A fixing ring (30) is rotatably sleeved on the bolt body (1); There are a plurality of bending plates (31), wherein the plurality of bending plates (31) are arranged at intervals on the circumference of the outer wall of the fixing ring (30), and the limiting surface (313) is the bottom surface of the bending plate (31); The arc-shaped side plate (32) is provided on the bent plate (31), the arc-shaped side plate (32) is coaxially arranged with the bolt body (1), the extrusion surface (314) is an arc-shaped inner surface, and the sliding block (501) abuts against the arc-shaped side plate (32).

5. The earthquake-resistant bolt according to claim 4, characterized in that: The inner side of the bending plate (31) has a support bar (311), and the support bar (311) is arranged obliquely. After the nut (4) is pressed against the extrusion surface (314), the support bar (311) is used to provide the bending plate (31) with a force to press the nut (4).

6. The earthquake-resistant bolt according to claim 4, characterized in that: The bending portion of the bending plate (31) is arc-shaped.

7. The earthquake-resistant bolt according to claim 1, characterized in that: The nut (4) comprises: There are a plurality of clamping plates (41), wherein the plurality of clamping plates (41) are spaced apart and arranged on one end surface of the nut (4), the clamping plates (41) are arranged obliquely, and the end of the clamping plate (41) away from the nut (4) abuts against the thread of the bolt body (1); A circular ring (42) is provided on the other end face of the nut (4), and the circular ring (42) abuts against the extrusion surface (314).

8. The earthquake-resistant bolt according to claim 4, characterized in that: The bent plate (31) has a through hole (312) and further comprises: A protrusion (2) is provided on the bolt body (1); after the fixing ring (30) drives the bending plate (31) to rotate, the protrusion (2) is engaged in the through hole (312).

9. The earthquake-resistant bolt according to claim 4, characterized in that: The outer surface of the arc-shaped side plate (32) has an anti-slip groove (321) or a thread adapted to the nut (4).

10. The earthquake-resistant bolt according to claim 7, characterized in that: One end of the clamping plate (41) away from the nut (4) has a clamping block (411), and the clamping block (411) is clamped with the thread groove of the bolt body (1).

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