Anti-seismic fastener connecting structure

Abstract

The utility model discloses an anti-seismic fastener connecting structure which comprises a bolt and an embedded part, a locking mechanism is assembled in the embedded part, the surface of the bolt is provided with a positioning part and the locking mechanism which are matched with the locking mechanism, and the locking mechanism comprises a movable cavity, a steel sheet spring, a clamping part, a movable part and a sliding groove. The embedded part is simple in structure and reasonable in design, stable positioning of the bolt in the embedded part can be guaranteed through matching of the clamping part and the bolt, stability and reliability of a connecting part are improved, vibration and impact resistance is facilitated, the head of the bolt can penetrate through limitation of the clamping part more easily and enter the embedded part through arrangement of the diameter reducing part, and the service life of the embedded part is prolonged. And therefore, a worker can fasten and install more conveniently, the installation difficulty is reduced, and the needed time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware fasteners, in particular to a seismic fastener connection structure. Background Art

[0002] In contemporary engineering design, the performance of fastener-connected structures directly affects the stability, safety and durability of structures. High-quality fastening systems are essential to ensure that mechanical and structural components remain reliably connected during long-term use. With the development of technology, the demand for fasteners has far exceeded simple physical connections, and has developed towards being able to withstand complex environmental applications, improve the overall performance of structures and add additional functionality. For example, when designing fasteners, it is necessary to consider material selection, thread design, surface treatment, and compatibility with connectors to adapt to different working conditions and environments. These considerations ensure that fasteners not only provide sufficient fastening force during initial installation, but also resist loosening, corrosion and fatigue during long-term service. Therefore, innovative design and material application of fasteners are one of the key factors to improve the success rate of engineering projects, which enable fasteners to meet higher standards of engineering safety and reliability requirements.

[0003] In the field of earthquake resistance, the design of fastener connection structures is particularly important, especially in industrial applications that need to withstand periodic vibrations and shocks for a long time, such as transportation systems, energy equipment, and industrial machinery. These long-term vibrations may cause traditional fastening connections to gradually loosen, thereby affecting the stability and safe operation of the entire system. To this end, it is necessary to design a fastener connection structure with earthquake resistance to ensure that the fastener remains locked under the influence of long-term vibration to prevent loosening. Such earthquake-resistant fasteners usually use special locking mechanisms, elastic materials, or dynamic adjustment capabilities to adapt to and compensate for any minor displacements caused by vibrations, thereby maintaining the tightness of the connection. In actual application scenarios, the use of such fasteners has greatly improved the reliability and life of key structures and equipment in long-term vibration environments, reduced maintenance costs, and ensured the continued stable operation of the system. Utility Model Content

[0004] The purpose of the utility model is to provide a seismic fastener connection structure to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: an anti-seismic fastener connection structure, comprising a bolt and an embedded part, wherein a locking mechanism is assembled inside the embedded part, and a positioning portion cooperating with the locking mechanism is arranged on the surface of the bolt;

[0006] The locking mechanism comprises:

[0007] An active chamber, wherein the active chamber is provided in a side wall of the embedded part;

[0008] A steel leaf spring, wherein the steel leaf spring is arranged in the active chamber, and an end of the steel leaf spring is fixed to a side wall of the active chamber;

[0009] A clamping piece, wherein a movable part is arranged at the lower end of the clamping piece, the interior of the movable chamber is slidably connected with the movable part by providing a sliding groove, and the movable part abuts against the supporting surface of the steel leaf spring.

[0010] Preferably, the clamping surface of the clamp is provided with threads matching the bolts.

[0011] Preferably, a rubber layer is provided on the surface of the positioning portion.

[0012] Preferably, the bolt is provided with a reduced diameter portion, the diameter of the reduced diameter portion gradually increases from one end close to the head to the other end thereof, and the minimum diameter of the reduced diameter portion is smaller than the maximum diameter of the head thereof.

[0013] Preferably, the upper surface of the clamp is crescent-shaped.

[0014] Preferably, the clamp is made of carbon steel.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The anti-seismic fastener connection structure is provided with a locking mechanism, which includes a movable chamber, a steel leaf spring, a clamp, a movable part, and a slide groove. The clamp cooperates with the bolt to ensure that the bolt is firmly positioned in the embedded part, thereby improving the stability and reliability of the connection part and helping to resist vibration and impact. The reduced diameter part is provided to make it easier for the bolt head to pass through the restriction of the clamp and enter the interior of the embedded part, making it more convenient for workers to tighten and install, reducing the difficulty and time required for installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the internal structure of the utility model after installation;

[0018] Figure 2 It is an enlarged view of part A of the utility model;

[0019] Figure 3 This is a schematic diagram of the bolt structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the cross-section of the clamp and the bolt during the tightening process of the utility model.

[0021] In the figure: 1. bolt; 2. embedded part; 3. locking mechanism; 301. movable chamber; 302. leaf spring; 303. clamp; 304. movable part; 305. slide groove; 4. positioning part; 5. thread; 6. rubber layer; 7. reduced diameter part. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and 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, and therefore should not be understood as a limitation on the present invention.

[0024] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense, for example, it can be fixed connection, setting, or detachable connection, setting, or integrated connection, setting. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined. Example

[0026] See also Figure 1-4 As shown, the utility model provides a technical solution of a seismic fastener connection structure: a seismic fastener connection structure, comprising a bolt 1 and an embedded part 2, wherein a locking mechanism 3 is assembled inside the embedded part 2, and a positioning portion 4 matching the locking mechanism 3 is arranged on the surface of the bolt 1;

[0027] The locking mechanism 3 includes an active chamber 301, a steel leaf spring 302, and a clamp 303. The active chamber 301 is opened in the side wall of the embedded part 2, the steel leaf spring 302 is arranged in the active chamber 301, the end of the steel leaf spring 302 is fixed to the side wall of the active chamber 301, and a movable part 304 is arranged at the lower end of the clamp 303. The interior of the active chamber 301 is slidably connected with the active part 304 by a slide groove 305, and the movable part 304 is abutted against the supporting surface of the steel leaf spring 302. When the embedded part 2 and the bolt 1 are assembled, the bolt 1 needs to be sent into the interior of the embedded part 2 first, and then tightened. During this process, the clamp 303 will be stretched open by the bolt 1. When the threaded section of the bolt 1 completely enters the interior of the embedded part 2, the clamp 303 will embrace the positioning part 4 of the bolt 1. At this time, the threaded section of the bolt 1 will be restricted in the embedded part 2, ensuring that the bolt 1 is firmly positioned, thereby improving the stability and reliability of the connecting part.

[0028] The clamping surface of the clamping member 303 is provided with a thread 5 matched with the bolt 1 . The thread 5 can make installation more convenient and avoid damage to the connection between the clamping member 303 and the embedded member 2 .

[0029] The surface of the positioning part 4 is provided with a rubber layer 6, which can provide better shock absorption performance, absorb and reduce vibration transmission. In addition, the cooperation between the rubber layer 6 and the clamp 303 can also reduce the entry of moisture, salt and other corrosive substances into the stop bolt 1 and the embedded part 2, thereby reducing the possibility of corrosion.

[0030] The bolt 1 is provided with a reduced diameter portion 7, the diameter of which gradually increases from one end of the reduced diameter portion 7 close to the head to the other end thereof, and the minimum diameter of the reduced diameter portion 7 is smaller than the maximum diameter of its head. By designing the reduced diameter portion 7, the end portion of the bolt 1 can more easily pass through the restriction of the clamp 303 and enter the interior of the embedded part 2 during tightening, so as to facilitate tightening and installation by the staff.

[0031] The upper surface of the clamp 303 is crescent-shaped. By designing the upper surface of the clamp 303 to be crescent-shaped, it can cooperate with the bolt 1 more effectively, enhance the locking effect, and reduce the risk of loosening due to vibration or impact.

[0032] The clamp 303 is made of carbon steel. By designing the clamp 303 to be made of carbon steel, higher strength and toughness can be provided, so that the clamp 303 can maintain its characteristics during long-term use and extend its service life.

[0033] The working principle of the utility model is as follows:

[0034] During the assembly process of a seismic fastener connection structure of the present embodiment, the bolt 1 is first inserted into the embedded part 2 and gradually tightened. During this process, the bolt 1 will push the clamp 303 away. When the threaded portion of the bolt 1 completely enters the embedded part 2, the clamp 303 will tightly surround the positioning portion 4 of the bolt 1. After this step is completed, the threaded portion of the bolt 1 is fixed inside the embedded part 2, thereby ensuring the firm positioning of the bolt 1 and significantly enhancing the stability and reliability of the connection area.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A seismic fastener connection structure, comprising a bolt (1) and an embedded part (2), characterized in that: The embedded part (2) is internally equipped with a locking mechanism (3), and the surface of the bolt (1) is provided with a positioning portion (4) that matches the locking mechanism (3); The locking mechanism (3) comprises: An active chamber (301), wherein the active chamber (301) is opened in a side wall of the embedded part (2); A steel leaf spring (302), wherein the steel leaf spring (302) is arranged in the active chamber (301), and an end of the steel leaf spring (302) is fixed to a side wall of the active chamber (301); A clamping member (303) is provided with a movable portion (304) at the lower end of the clamping member (303); the interior of the movable chamber (301) is slidably connected to the movable portion (304) by providing a sliding groove (305); and the movable portion (304) abuts against a supporting surface of the steel leaf spring (302).

2. The anti-seismic fastener connection structure according to claim 1, characterized in that: The clamping surface of the clamping piece (303) is provided with a thread (5) that matches the bolt (1).

3. The anti-seismic fastener connection structure according to claim 1, characterized in that: A rubber layer (6) is provided on the surface of the positioning portion (4).

4. The anti-seismic fastener connection structure according to claim 1, characterized in that: The bolt (1) is provided with a reduced diameter portion (7), the diameter of the reduced diameter portion (7) gradually increases from one end close to the head to the other end thereof, and the minimum diameter of the reduced diameter portion (7) is smaller than the maximum diameter of the head thereof.

5. The anti-seismic fastener connection structure according to claim 1, characterized in that: The upper surface of the clamp (303) is crescent-shaped.

6. The anti-seismic fastener connection structure according to claim 1, characterized in that: The clamp (303) is made of carbon steel.

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