Buffering spring bolt

Abstract

The utility model discloses a buffering spring bolt, which relates to the technical field of fasteners and comprises a bolt body, a hemispherical connecting piece and a spring bolt. One end of a bolt body of a spring bolt is fixedly connected with a hemispherical connecting piece, the other end of the bolt body is provided with a bolt head and a spring, a screw rod part of a bolt body is in screwed connection with a threaded hole of a component to be connected through an external thread of the screw rod part, and a hemispherical groove in the top face of a screw head is designed to be used for containing and fixing the hemispherical connecting piece; according to the structure, during installation, the spring bolt is fixedly connected with the hemispheroid connecting piece, then the hemispheroid connecting piece is connected with the bolt body in a clamped mode, the structure is simple, installation is convenient, the buffering effect can be provided during fastening, and the connection stability is guaranteed; when an external impact force acts on the bolt joint, the spring of the spring bolt can absorb a part of the impact force and reduce the damage of vibration and impact to a connecting part, so that the connecting stability is improved, the service life of the bolt is prolonged, and meanwhile, the maintenance cost is also reduced.

Description

Technical Field

[0001] This utility model relates to the field of fasteners, and in particular to a buffered spring bolt. Background Technology

[0002] In the field of hardware processing and fastener technology, traditional bolt fasteners often lack sufficient buffering and shock absorption capabilities when connecting mechanical parts. This makes the connected parts prone to damage or loosening when subjected to external impacts or vibrations. To address this issue, the industry has begun exploring bolt designs with buffering functions to improve the stability and durability of connected parts. Currently, some fasteners with buffering functions exist on the market, but most of them have complex structures, cumbersome installation processes, and limited buffering effects. For example, some fasteners achieve buffering by adding extra rubber buffer pads, but this not only increases the complexity and cost of the overall structure, but the rubber buffer pads are also prone to aging or damage after prolonged use, requiring replacement and increasing maintenance costs. Furthermore, when machine tool chucks clamp irregular parts, the existing bolts have poor buffering effects, resulting in large impacts and strong vibrations on the parts, thus shortening their service life. Therefore, to solve the above problems, it is necessary to optimize the structure of bufferable bolts to improve their overall performance and application range. Utility Model Content

[0003] The purpose of this invention is to provide a buffered spring bolt. This buffered spring bolt not only satisfies the requirements of simple fastener structure and convenient installation, but also provides a buffering effect during tightening, reducing the impact and vibration of mechanical parts, thereby extending their service life and reducing maintenance costs.

[0004] This utility model is achieved through the following technical solution:

[0005] A buffer spring bolt, comprising:

[0006] The bolt body includes a bolt head and a bolt rod. The bolt rod is fixedly installed at the bottom of the bolt head. The top surface of the bolt head is provided with a hemispherical groove. The inner wall of the hemispherical groove is provided with a clearance hole. The bolt rod is provided with external threads.

[0007] A hemispherical connector, wherein the hemispherical connector is provided with an insertion hole extending from the center of the plane to the top of the curved surface, and the hemispherical connector is snapped into the hemispherical groove of the screw head;

[0008] A spring bolt, comprising a bolt head and a bolt body, wherein a spring is provided at one end of the bolt body near the bolt head, and the other end is connected to a hemispherical connector;

[0009] The inner diameters of the relief hole and the insertion hole are both larger than the outer diameter of the plug body, and the length of the plug body is shorter than the length at which the relief hole and the insertion hole meet.

[0010] As a further description of the above technical solution:

[0011] The length of the plug body is longer than the insertion hole, and a fixing hole is provided at the end of the plug body away from the plug head for matching with the pin.

[0012] As a further description of the above technical solution:

[0013] The radius of the hemispherical connector is equal to the radius of the hemispherical groove on the screw head.

[0014] As a further description of the above technical solution:

[0015] The depth L2 of the hemispherical groove is greater than the radius of the hemispherical groove.

[0016] As a further description of the above technical solution:

[0017] The vertical distance L1 from the plane to the arc surface of the hemispherical connector is longer than the depth L2 of the hemispherical groove of the screw head.

[0018] As a further description of the above technical solution:

[0019] The top of the plug head is flat.

[0020] This utility model has the following beneficial effects:

[0021] The buffered spring bolt provided by this utility model consists of a bolt body, a hemispherical connector, and a spring bolt. The bolt body's threaded portion is screwed into the threaded hole of the component to be connected via its external thread. The hemispherical groove on the top surface of the bolt head is designed to accommodate and fix the hemispherical connector. One end of the spring bolt is fixedly connected to the hemispherical connector, while the other end has a bolt head and a spring. The spring provides the bolt body with a certain buffering capacity when subjected to external forces. During installation, the spring bolt is fixedly connected to the hemispherical connector, which then engages with the bolt body. This design is not only simple and easy to install, but also provides a buffering effect during tightening and ensures the stability of the connection. Since the inner diameters of the clearance hole and the insertion hole are both larger than the outer diameter of the bolt body, and the length of the bolt body is shorter than the length of the two holes joined together, the bolt body can move freely within a certain range. This, combined with the spring, achieves a buffering effect. When external impact forces act on the bolt connection, the spring of the spring bolt can absorb part of the impact force, reducing vibration and impact damage to the connected components, thereby improving the stability of the connection, extending its service life, and reducing maintenance costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the axial section of a bufferable spring bolt proposed in this utility model;

[0023] Legend:

[0024] 1. Bolt body; 101. Thread head; 102. Thread rod; 103. Clearance hole; 2. Hemispherical connector; 201. Insertion hole; 3. Spring bolt; 301. Bolt head; 302. Bolt body; 303. Spring; 304. Fixing hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 1 The present invention provides a buffered spring bolt, comprising a bolt body 1, a hemispherical connector 2, and a spring bolt 3.

[0027] The bolt body 1 includes a screw head 101 and a screw rod 102. The top surface of the screw head 101 is provided with a hemispherical groove, and the inner wall of the hemispherical groove is provided with a clearance hole 103. The screw rod 102 is provided with external threads and is fixedly installed at the bottom of the screw head 1.

[0028] The hemispherical connector 2 is provided with an insertion hole 201 that extends from the center of the plane to the top of the curved surface, and the hemispherical connector 2 is snapped into the hemispherical groove of the screw head 101.

[0029] The spring bolt 3 includes a bolt head 301 and a bolt body 302. A spring 303 is provided on one end of the bolt body 302 near the bolt head 301, and the other end is connected to the hemispherical connector 2.

[0030] The inner diameters of the relief hole 103 and the insertion hole 201 are both larger than the outer diameter of the plug body 302, and the length of the plug body 302 is shorter than the length of the relief hole 103 connected to the insertion hole 201.

[0031] This utility model provides a buffered spring bolt. By comprising a bolt body 1, a hemispherical connector 2, and a spring bolt 3, the bolt body 1's threaded portion 102 is screwed into the threaded hole of the component to be connected via its external thread, enhancing structural stability. One end of the spring bolt 3's bolt body 302 is fixedly connected to the hemispherical connector 2, while the other end has a bolt head 301 and a spring 303. The spring 303 provides the bolt body 302 with a certain buffering capacity when subjected to external force. The hemispherical groove on the top surface of the bolt head 101 is designed to accommodate and fix the hemispherical connector 2, ensuring both structural simplicity and connection stability. Since the inner diameters of the clearance hole 103 and the insertion hole 201 are both larger than the outer diameter of the bolt body 302, and the length of the bolt body 302 is shorter than the length of the two holes joined together, the bolt body 302 can move freely within a certain range, working in conjunction with the spring 303 to achieve a buffering effect. When an external impact force is applied to the bolted connection, the spring 303 of the spring bolt 3 can absorb part of the impact force, reduce the damage of vibration and impact to the connected parts, thereby improving the stability and service life of the connection and reducing maintenance costs.

[0032] For ease of installation, the length of the bolt body 302 is longer than the insertion hole 201. A fixing hole 304 is provided at the end of the bolt body 302 furthest from the bolt head 301 for mating with the pin. By making the bolt body 302 longer than the insertion hole 201, it ensures that the bolt body 302 can be fully inserted into the insertion hole 201 and extends a certain length beyond the insertion hole, thus providing sufficient space for connection and fixation. The fixing hole 304 at the end of the bolt body 302 furthest from the bolt head 301, mating with the pin, enhances the stability and reliability of the connection. When the pin passes through the fixing hole 304, it effectively prevents the bolt body 302 from coming out of the insertion hole 201, improving the stability and safety of the overall structure. Furthermore, this design is simple in structure, convenient in operation, and easy to install and disassemble.

[0033] To improve the tightness of the connection, the radius of the hemispherical connector 2 is equal to the radius of the hemispherical groove on the screw head 101; the depth of the hemispherical groove is greater than its radius; the perpendicular distance L1 from the plane of the hemispherical connector 2 to the arc surface is longer than the depth L2 of the hemispherical groove on the screw head 101. Because the radius of the hemispherical connector 2 is equal to the radius of the hemispherical groove on the screw head 101, the hemispherical connector 2 can be precisely and tightly embedded in the hemispherical groove. When the bolt body is subjected to vibration, the hemispherical connector 2 will not loosen or fall out due to vibration, ensuring a stable connection between the two. Since the depth L2 of the hemispherical groove is greater than the radius of the hemispherical groove, the diameter of the circle formed by the plane of the hemispherical groove is smaller than the diameter of the hemispherical groove itself, ensuring that the hemispherical connector 2 can be engaged with it and will not fall out. Simultaneously, because the hemispherical connector 2... The spherical connector 2 can be embedded more deeply into the hemispherical groove, which helps to enhance the stability of the connection and improve the overall connection strength. Since the vertical distance L1 from the plane to the arc surface of the hemispherical connector 2 is longer than the depth L2 of the hemispherical groove of the screw head 101, the spherical part of the connector 2 will be squeezed by the edge of the hemispherical groove of the screw head 101, resulting in a certain degree of elastic deformation. As the connector 2 is inserted deeper, its spherical part will gradually fit into the spherical part of the hemispherical groove of the screw head 101 until it is fully engaged. During this process, the elastic deformation of the connector 2 can absorb the assembly gap between the two, improving the tightness and stability of the connection. Simultaneously, due to the novel hemispherical structure, this connection structure can disperse stress when subjected to external forces, improving the overall impact resistance and durability.

[0034] To ensure smoother operation, the top of the spring bolt 301 is flat. This flat top surface not only ensures that the spring bolt fits more smoothly against the contact surface during operation, reducing vibration and noise caused by unevenness, but also increases the contact area between the spring bolt and the contact surface, thereby more effectively dispersing pressure and preventing damage caused by excessive local pressure.

[0035] Working Principle: This utility model provides a buffered spring bolt. It comprises a bolt body, a hemispherical connector, and a spring bolt. The bolt body's threaded portion is screwed into the threaded hole of the component to be connected via its external thread. The hemispherical groove on the top surface of the bolt head is designed to accommodate and fix the hemispherical connector. One end of the spring bolt is fixedly connected to the hemispherical connector, while the other end has a bolt head and a spring. The spring provides a certain buffering capacity when the bolt is subjected to external force. During installation, the spring bolt is fixedly connected to the hemispherical connector, which then engages with the bolt body. This design is not only simple but also ensures the stability of the connection. Because the inner diameters of the clearance hole and the insertion hole are larger than the outer diameter of the bolt body, and the length of the bolt body is shorter than the length of the two holes joined together, the bolt body can move freely within a certain range, achieving a buffering effect in conjunction with the spring. When external impact force acts on the bolt connection, the spring of the spring bolt can absorb part of the impact force, reducing vibration and impact damage to the connected components, thereby improving the stability and service life of the connection and reducing maintenance costs.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A buffer-type spring bolt, characterized in that, include: Bolt body (1), the bolt body (1) includes a screw head (101) and a screw rod (102), the screw rod (102) is fixedly installed at the bottom of the screw head (101), the top surface of the screw head (101) is provided with a hemispherical groove, the inner wall of the hemispherical groove is provided with a clearance hole (103), and the screw rod (102) is provided with external threads; A hemispherical connector (2) is provided with an insertion hole (201) extending from the center of the plane to the top of the curved surface. The hemispherical connector (2) is snapped into the hemispherical groove of the screw head (101). A spring bolt (3) includes a bolt head (301) and a bolt body (302). A spring (303) is provided at one end of the bolt body (302) near the bolt head (301), and the other end is connected to the hemispherical connector (2). The inner diameters of the relief hole (103) and the insertion hole (201) are both greater than the outer diameter of the plug body (302), and the length of the plug body (302) is shorter than the length of the relief hole (103) and the insertion hole (201) connected together.

2. The bufferable spring bolt according to claim 1, characterized in that: The length of the plug body (302) is longer than the insertion hole (201), and a fixing hole (304) is provided at one end of the plug body (302) away from the plug head (301) for matching with the pin.

3. A buffer-type spring bolt according to claim 2, characterized in that: The radius of the hemispherical connector (2) is equal to the radius of the hemispherical groove on the screw head (101).

4. A buffer-type spring bolt according to claim 3, characterized in that: The depth L2 of the hemispherical groove is greater than the radius of the hemispherical groove.

5. A buffer-type spring bolt according to claim 4, characterized in that: The vertical distance L1 from the plane to the arc surface of the hemispherical connector (2) is longer than the depth L2 of the hemispherical groove of the screw head (101).

6. A buffer-type spring bolt according to claim 5, characterized in that: The top of the plug head (301) is flat.

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