Composite shock absorbing connector clip

Abstract

The application provides a composite shock-absorbing connecting buckle, and relates to the technical field of bridges.The composite shock-absorbing connecting buckle comprises a cross beam and two side arms, the two side arms are respectively arranged on the two sides of the cross beam, the proximal end of each side arm is connected to the cross beam, the distal end of each side arm is provided with a limiting portion and a threaded portion arranged in sequence from the proximal end to the distal end, a threaded connecting piece is connected to the threaded portion, a first elastic element is arranged between the threaded connecting piece and the limiting portion, and the two ends of the first elastic element are respectively abutted on the limiting portion and the threaded connecting piece; a second elastic element is further arranged on the cross beam, and the second elastic element is arranged between the two side arms and is arranged in the extension direction of the two side arms.The pre-tightening force provided by the first elastic element can avoid loosening of the threaded connecting piece, and the connection effect of the threaded connecting piece can be ensured in long-term use; the second elastic element can provide a shock-absorbing effect between the cross beam and the bridge deck, and the fastening effect of the composite shock-absorbing connecting buckle in the operation process can be ensured.

Description

Technical Field

[0001] This invention relates to the field of bridge technology, and in particular to a composite shock-absorbing connection clip. Background Technology

[0002] In the steel trestle bridge system, the passage section mainly uses steel main distribution beams as supports, while steel bridge decks are laid. The bridge decks and main distribution beams are connected and fixed by metal clips.

[0003] The structure provides sufficient structural strength, but since the bridge deck, main distribution beam and buckle are all made of steel, the connection structure involves direct contact between metal components. During the application process, the bridge deck will inevitably face the impact and vibration caused by vehicle traffic. In the long term, it will also experience the high and low temperature differences caused by seasonal changes. Not only is noise easily generated between the metal components, but the structure may also loosen due to vibration and thermal expansion and contraction. Summary of the Invention

[0004] The purpose of this invention is to provide a composite shock-absorbing connection clip that solves the problem of poor performance of existing clips when connecting bridge decks and main distribution beams.

[0005] The present invention provides a composite shock-absorbing connection buckle, including a crossbeam and two side arms. The two side arms are respectively disposed on both sides of the crossbeam. The proximal end of the side arm is connected to the crossbeam, and the distal end of the side arm is provided with a limiting part and a threaded part in sequence from proximal to distal. A threaded connector is connected to the threaded part, and a first elastic element is disposed between the threaded connector and the limiting part. The two ends of the first elastic element abut against the limiting part and the threaded connector, respectively. A second elastic element is also provided on the crossbeam. The second elastic element is located between the two side arms and is positioned in the direction of extension of the two side arms.

[0006] In an optional implementation, the second elastic element is elongated.

[0007] In an optional embodiment, the crossbeam is provided with a connecting groove, the first end of the second elastic element is embedded in the connecting groove, and the second end of the second elastic element is positioned toward the extension direction of the two side arms and protrudes outside the connecting groove.

[0008] In an optional implementation, the second elastic element and the connecting groove are bonded together.

[0009] In an optional embodiment, the second elastic element extends to two side arms on both sides.

[0010] In an optional implementation, the second elastic element is made of rubber.

[0011] In an optional implementation, the threaded portion and the side arm are integrally formed.

[0012] In an optional embodiment, the threaded part is a screw, and the distal end of the side arm is provided with a screw hole, and the screw is connected to the screw hole.

[0013] In an optional implementation, the first elastic element is a spring.

[0014] In an optional embodiment, the free length of the first elastic element is not less than 1.2 times the distance between the limiting part and the threaded connection.

[0015] The composite shock-absorbing connecting clip provided by this invention has the following beneficial effects: 1. A first elastic element is provided between the threaded connector and the limiting part. The two ends of the first elastic element abut against the limiting part and the threaded connector respectively. The elastic force of the first elastic element can provide a pre-tightening force to the threaded connector. When the threaded connector is subjected to impact force, the pre-tightening force provided by the first elastic element can prevent the threaded connector from loosening. In long-term use, the connection effect of the threaded connector can be guaranteed. 2. The second elastic element is in direct contact with the bridge deck, providing shock absorption between the crossbeam and the bridge deck, thereby reducing the transmission of vibration from the bridge deck to the crossbeam, reducing the impact of vibration generated during bridge operation on the composite shock absorption connection clip, and ensuring the fastening effect of the composite shock absorption connection clip during operation. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the composite shock-absorbing connecting buckle provided in an embodiment of the present invention; Figure 2 This is a partial cross-sectional view of the composite shock-absorbing connection buckle provided in an embodiment of the present invention; Figure 3 This is a partial structural diagram of the composite shock-absorbing connecting buckle provided in an embodiment of the present invention.

[0018] Icons: 100-Crossbeam; 200-Side arm; 210-Limiting part; 220-Threaded part; 300-Threaded connector; 400-First elastic element; 500-Second elastic element. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not 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 invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0026] Example 1 Embodiment 1 of the present invention provides a composite shock-absorbing connection buckle, such as Figures 1 to 3 As shown, it includes a crossbeam 100 and two side arms 200. The two side arms 200 are respectively disposed on both sides of the crossbeam 100. The proximal end of the side arm 200 is connected to the crossbeam 100. The distal end of the side arm 200 is provided with a limiting part 210 and a threaded part 220 arranged sequentially from proximal to distal. A threaded connector 300 is connected to the threaded part 220. A first elastic element 400 is disposed between the threaded connector 300 and the limiting part 210. The two ends of the first elastic element 400 abut against the limiting part 210 and the threaded connector 300, respectively. The crossbeam 100 is also provided with a second elastic element 500, which is located between the two side arms 200 and is positioned in the direction of extension of the two side arms 200.

[0027] A first elastic element 400 is provided between the threaded connector 300 and the limiting part 210. The two ends of the first elastic element 400 abut against the limiting part 210 and the threaded connector 300 respectively. The elastic force of the first elastic element 400 can provide a pre-tightening force to the threaded connector 300. When the threaded connector 300 is subjected to impact force, the pre-tightening force provided by the first elastic element 400 can prevent the threaded connector 300 from loosening. In long-term use, the connection effect of the threaded connector 300 can be guaranteed. The second elastic element 500 is in direct contact with the bridge deck and can provide shock absorption between the crossbeam 100 and the bridge deck, thereby reducing the transmission of vibration from the bridge deck to the crossbeam 100, reducing the impact of vibration generated during bridge operation on the composite shock absorption connection buckle, and ensuring the fastening effect of the composite shock absorption connection buckle during operation.

[0028] Furthermore, when the equipment vibrates during operation or is subjected to external impact, the second elastic element 500 can effectively buffer and absorb energy, reduce vibration transmission, reduce fatigue damage to the fixed object caused by vibration, and extend the service life of the equipment.

[0029] The second elastic element 500 also has a certain compressibility and deformation capacity, which can compensate for the installation error between the crossbeam 100 and the fixed object to a certain extent, so that the composite shock-absorbing connection buckle can better adapt to the installation requirements of different sizes and improve the adaptability and reliability of the installation.

[0030] The second elastic element 500 also enhances the noise reduction performance of the composite damping connection clip. The second elastic element 500 can block and absorb noise generated during equipment operation, preventing direct contact and friction between the metal beam 100 and the metal bridge deck, thus avoiding harsh noises. In the fixing of the bridge deck to the main distribution beam, the use of a composite damping connection clip with the second elastic element 500 effectively reduces operating noise generated when vehicles pass by, minimizing the impact on the surrounding environment.

[0031] In this embodiment, specifically, such as Figure 1 As shown, the second elastic element 500 is elongated, with both sides extending to the two side arms 200. Thus, a single second elastic element 500 can be used to achieve a damping connection between the crossbeam 100 and the bridge deck.

[0032] In other embodiments, gaps may be left between the two sides of the elongated second elastic element 500 and the two side arms 200. Specifically, the width of the second elastic element 500 may be 10 to 20 millimeters smaller than the length between the two side arms 200.

[0033] like Figure 2 As shown, in this embodiment, the crossbeam 100 is provided with a connecting groove. The first end 510 of the second elastic element 500 is embedded in the connecting groove, and the second end of the second elastic element 500 is positioned facing the extending direction of the two side arms 200 and protruding outside the connecting groove. The second elastic element 500 and the connecting groove are bonded together. The second elastic element 500 is made of rubber. More specifically, the connecting groove is also configured with a cross-sectional shape that is wider inside and narrower at the opening. This structural configuration allows the second elastic element 500 to be more firmly connected to the crossbeam 100.

[0034] A layer of rubber-specific adhesive can be evenly applied to both the connecting groove and the surface of the second elastic element 500. The application should be of uniform thickness to avoid missed areas or accumulation. When inserting the first end 510 of the second elastic element 500 into the connecting groove, a rubber mallet or similar tool can be used to gently tap it, ensuring the first end 510 is fully embedded and tightly fitted against the groove wall. During installation, care should be taken to maintain the flatness of the second elastic element 500, avoiding twisting or tilting.

[0035] In this embodiment, the second elastic element 500 is made of rubber, and the Shore hardness of the rubber is preferably between 40 and 70. Within this range, a lower hardness can be selected if better elasticity and cushioning performance are required; a higher hardness can be selected if a certain degree of support and wear resistance is required. The thickness of the second elastic element 500 is preferably 5 to 20 mm. If used to fix softer or more fragile objects, a thicker second elastic element 500, such as 15 to 20 mm, can be selected to provide better cushioning and protection; if used for general fixing applications, a thinner second elastic element 500, with a thickness of 5 to 10 mm, is usually sufficient.

[0036] The second elastic element 500, made of rubber, further enhances the anti-loosening capability. Rubber has a certain coefficient of friction, which increases the friction between the bolt and the object after tightening, effectively preventing loosening caused by vibration or shaking. Compared to traditional snap-fit ​​connectors, the composite shock-absorbing snap-fit ​​provided in this embodiment maintains a tighter fit better during long-term use, reducing maintenance frequency and safety hazards.

[0037] The second elastic element 500 made of rubber also prevents surface wear on the fixed object. Traditional snap-fit ​​connectors are in direct contact with the object's surface, which can easily scratch or wear the object's surface coating or material during fastening and use. The composite shock-absorbing connector provided in this embodiment is equipped with a second elastic element 500 made of rubber. This second elastic element 500 isolates and protects the fixed object from the crossbeam 100 of the composite shock-absorbing connector, avoiding direct contact that could lead to wear and other problems. It is suitable for fixing objects with high surface quality requirements.

[0038] In this embodiment, as Figure 3 As shown, the threaded portion 220 and the side arm 200 are integrally formed. Specifically, the end of the side arm 200 can be formed into a cylinder by variable diameter forging, and then the threaded portion 220 and the limiting portion 210 can be formed by machining.

[0039] In this embodiment, as Figure 3 As shown, the first elastic element 400 is a spring, and the free length of the first elastic element 400 is not less than 1.2 times the distance between the limiting part 210 and the threaded connector 300. This allows the first elastic element 400 to provide sufficient preload to prevent the threaded connector 300 from loosening.

[0040] In this embodiment, the threaded connector 300 is a nut, such as Figure 3 As shown. In other embodiments, the threaded connector 300 can also be other structural components with internal threads, as long as the threaded connector 300 can complete the threaded connection with the threaded portion 220 of the side arm 200.

[0041] In this embodiment, the composite shock-absorbing connecting clips can also undergo surface treatments such as galvanizing and nickel plating to improve their corrosion resistance. Preferably, a three-layer surface treatment can be provided: a base layer using a hot-dip galvanized sacrificial anode layer, an epoxy coating in the middle layer, and a polyurethane topcoat on the surface. This results in a more uniform and robust surface treatment, better resisting external environmental erosion and extending service life. It is particularly suitable for equipment installation and fixing in humid, acidic, or alkaline corrosive environments, such as coastal areas.

[0042] The composite shock-absorbing connecting clip provided in this embodiment can be manufactured using the following process: 1 cm thick Q345 carbon steel is selected as the steel plate material. CNC laser cutting is used to form 2 cm wide steel strips. A cold bending forming process is employed, using high-precision cold bending equipment and molds. Through multiple progressive bending operations, the steel strips are bent into a U-shape to form the main structure of the crossbeam 100 and side arms 200. Pre-treatment is performed on the distal 6 cm area of ​​the side arms 200, including marking and positioning, surface cleaning, etc. A medium-frequency induction heating device is used to rapidly heat this area to 850-950℃. Then, a cylindrical structure is formed through variable-diameter forging, followed by thread cutting to form the threaded part 220 and the limiting part 210. The crossbeam 100 is then cut with equipment such as a plasma cutter to form connecting grooves. The first end 510 of the second elastic element 500 is then inserted into the connecting groove. Next, the first elastic element 400 and the threaded connector 300 are installed. Finally, the entire structure undergoes surface treatment.

[0043] In other embodiments, the crossbeam 100 and side arm 200 can be formed by stamping high-strength steel plates, and the composite shock-absorbing connecting clip has stronger resistance to deformation. The crossbeam 100 and side arm 200 formed by stamping high-strength steel plates have a flat shape and a large contact area, making them less prone to deformation when subjected to external forces compared to ordinary round steel clips or U-bolts. The composite shock-absorbing connecting clip provided in this embodiment can better maintain its shape and fastening force, reducing the risk of loosening or displacement caused by bolt deformation. In addition, the strength and toughness of the material are better than the round steel used in ordinary clips, and the cross-sectional shape of the high-strength steel plate and the stamping structure design allow this composite shock-absorbing connecting clip to distribute stress more evenly when subjected to tensile and shear forces, thereby bearing greater loads. It is suitable for occasions with high requirements for fastening force and stability, such as the anchor fixing of large mechanical equipment and the connection in bridge structures.

[0044] Example 2 Example 2 provides a composite shock-absorbing connecting buckle, with the main structure being the same as Example 1, except that: the threaded part 220 is a screw, and the distal end of the side arm 200 is provided with a screw hole, with the screw connected to the screw hole. The threaded part 220 does not adopt a one-piece molding structure, but rather an assembly form, which can reduce the complexity of the manufacturing process of the side arm 200.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A composite shock-absorbing connecting buckle, characterized in that, The device includes a crossbeam (100) and two side arms (200), which are respectively located on both sides of the crossbeam (100). The proximal end of each side arm (200) is connected to the crossbeam (100), and the distal end of each side arm (200) is provided with a limiting part (210) and a threaded part (220) arranged sequentially from proximal to distal. A threaded connector (300) is connected to the threaded part (220), and a first elastic element (400) is provided between the threaded connector (300) and the limiting part (210). The two ends of the first elastic element (400) abut against the limiting part (210) and the threaded connector (300), respectively. The crossbeam (100) is also provided with a second elastic element (500), which is located between the two side arms (200) and is positioned in the direction of extension of the two side arms (200).

2. The composite shock-absorbing connecting buckle according to claim 1, characterized in that, The second elastic element (500) is elongated.

3. The composite shock-absorbing connecting buckle according to claim 2, characterized in that, The crossbeam (100) is provided with a connecting groove, the first end (510) of the second elastic element (500) is embedded in the connecting groove, and the second end of the second elastic element (500) is arranged toward the extension direction of the two side arms (200) and exposed outside the connecting groove.

4. The composite shock-absorbing connecting buckle according to claim 3, characterized in that, The second elastic element (500) and the connecting groove are bonded together.

5. The composite shock-absorbing connecting buckle according to claim 1, characterized in that, The second elastic element (500) extends to the two side arms (200) on both sides respectively.

6. The composite shock-absorbing connecting buckle according to claim 1, characterized in that, The second elastic element (500) is made of rubber.

7. The composite shock-absorbing connecting buckle according to claim 1, characterized in that, The threaded portion (220) and the side arm (200) are integrally formed.

8. The composite shock-absorbing connecting buckle according to claim 1, characterized in that, The threaded portion (220) is a screw, and the distal end of the side arm (200) is provided with a screw hole, and the screw is connected to the screw hole.

9. The composite shock-absorbing connecting buckle according to claim 1, characterized in that, The first elastic element (400) is a spring.

10. The composite shock-absorbing connecting buckle according to claim 9, characterized in that, The free length of the first elastic element (400) is not less than 1.2 times the distance between the limiting part (210) and the threaded connector (300).

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