Steel tie rod

Abstract

The utility model discloses a steel tie rod which comprises a tie rod body, a first connector assembly and a second connector assembly, and the first connector assembly is elastically connected to the first end of the tie rod body and connected with a first structural part through a first pin shaft assembly. The second connector assembly is rigidly connected to the second end of the pull rod body and connected with a second structural part through a second pin shaft assembly. The first connector assembly comprises a connecting sleeve, a check block, a connecting connector and a plurality of belleville springs. The stop block and the connecting joint are connected to the two ends of the connecting sleeve respectively. The first end of the pull rod body sequentially penetrates through the check block and the belleville spring and is connected with the belleville spring, and the pull rod body, the connecting sleeve and the belleville spring are coaxially arranged. According to the steel tie rod, the belleville springs are arranged in the connecting sleeve, and the bearing capacity and stability of the steel tie rod are improved through the characteristics of small deformation and high bearing capacity of the belleville springs.

Description

Technical Field

[0001] The present application relates to the technical field of building structures, and more specifically, to a steel tie rod. Background Art

[0002] As a rigid component, steel tie rods are increasingly used in structural fields such as buildings and bridges due to their high strength and light weight.

[0003] As a prestressed structure, the above-mentioned steel tie rods are subjected to very frequent reciprocating loads or high-frequency vibrations in some special occasions, such as high-speed railway stations, large factories, subway stations, high-speed station bridges and other construction fields. As rigid components, prestressed steel tie rods are prone to fatigue failure. The emergence of some specific stress-bearing occasions makes it difficult for steel tie rods to independently complete the load-bearing work by relying on their high rigidity. Utility Model Content

[0004] In order to improve the stability and safety of a steel tie rod, the utility model provides a steel tie rod, comprising a tie rod body, a first joint assembly for connecting a first structural member, and a second joint assembly for connecting a second structural member, wherein the first joint assembly is elastically connected to the first end of the tie rod body and connected to the first structural member through a first pin assembly, and the second joint assembly is rigidly connected to the second end of the tie rod body and connected to the second structural member through a second pin assembly;

[0005] The first joint assembly includes a connecting sleeve, a block, a connecting joint and a plurality of disc springs; openings are provided at both ends of the connecting sleeve, the block and the connecting joint are respectively connected to the two ends of the connecting sleeve, and the plurality of disc springs are located in the connecting sleeve and are gap-matched with the inner wall of the connecting sleeve; the first end of the pull rod body passes through the block and the disc spring in sequence and is connected to an end of the disc spring away from the block, and the pull rod body, the connecting sleeve and the disc spring are coaxially arranged.

[0006] Preferably, the first end of the pull rod body has a first threaded section, and the first joint assembly also includes a fixing nut and a gasket, the outer diameter of the gasket is adapted to the outer diameter of the disc spring; the first threaded section of the pull rod body passes through the block, the disc spring and the gasket in sequence, and the fixing nut is connected to the first threaded section of the pull rod body and abuts against the gasket.

[0007] Preferably, the connecting joint includes a first ear plate and a connecting plate, the connecting plate is connected to the opening of the connecting sleeve at one end away from the stop block, the first ear plate is vertically connected to the side of the connecting plate away from the stop block, and the first pin shaft assembly is assembled on the first ear plate.

[0008] Preferably, the stopper and the connecting plate seal the two ends of the connecting sleeve respectively and form a closed cavity in the connecting sleeve, and the plurality of disc springs are located in the closed cavity.

[0009] Preferably, the plurality of disc springs are connected between the pad and the stopper in a sequentially matched manner.

[0010] Preferably, the gap between the disc spring and the inner wall of the connecting sleeve is 1-2 mm.

[0011] Preferably, the second end of the tie rod body has a second threaded section; the second joint assembly includes a tie rod joint, the tie rod joint has a threaded hole, and the tie rod body is threadedly connected to the tie rod joint through the second threaded section.

[0012] Preferably, the length of the second threaded segment is greater than the depth of the threaded hole; the second joint assembly comprises a locking nut, and the locking nut is threadedly connected to a portion of the second threaded segment exposed from the threaded hole.

[0013] Preferably, the end of the tie rod joint away from the threaded hole is provided with two second ear plates respectively along the axial direction of the tie rod body, and the second pin assembly vertically passes through the two second ear plates and is connected to the side of the second ear plate away from the tie rod body.

[0014] Preferably, the first pin assembly and the second pin assembly are arranged in parallel.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the first joint assembly is provided with a plurality of disc springs connected to the pull rod body, and the disc springs are arranged in the connecting sleeve, and the small deformation and high load-bearing capacity of the disc springs are used to improve the load-bearing capacity of the steel pull rod, and ensure the stability of the force on the steel pull rod, thereby realizing the application of the steel pull rod in the field of large deformation structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a steel tie rod according to an embodiment of the present application;

[0017] Figure 2 It is a cross-sectional view of a steel tie rod according to an embodiment of the present application.

[0018] Description of Reference Numerals

[0019] 1. Pull rod body; 2. First joint assembly; 21. Connecting sleeve; 22. Block; 23. Connecting joint; 231. First ear plate; 232. Connecting plate; 24. Disc spring; 25. Pad; 26. Fixing nut; 3. Second joint assembly; 31. Pull rod joint; 32. Locking nut; 33. Second ear plate; 4. First pin assembly; 5. Second pin assembly. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] like Figure 1 and Figure 2 The figure is a schematic diagram of the structure of the steel tie rod provided by the embodiment of the utility model. The steel tie rod of this embodiment can be applied to large deformation structures that are subjected to very frequent reciprocating loads or produce high-frequency vibrations, such as high-speed railway stations, large factories, and subway stations. The steel tie rod is mainly connected to the above-mentioned large deformation structure by assembly, and is used to achieve the support of the entire building.

[0022] The steel tie rod of this embodiment includes a tie rod body 1, a first joint assembly 2 and a second joint assembly 3, wherein the first joint assembly 2 is used to connect a first structural member (for example, a member in a frame structure), and the first joint assembly 2 is elastically connected to the first end of the tie rod body 1 and connected to the first structural member through a first pin assembly 4; the second joint assembly 3 is used to connect a second structural member (for example, another member in the frame structure), and the second joint assembly 3 is rigidly connected to the second end of the tie rod body 1 and connected to the second structural member through a second pin assembly 5.

[0023] The first joint assembly 2 comprises a connecting sleeve 21, a stopper 22, a connecting joint 23 and a plurality of disc springs 24 (see Figure 2 ). Openings are provided at both ends of the connecting sleeve 21, and the stopper 22 and the connecting joint 23 are respectively connected to the two ends of the connecting sleeve 21. Specifically, the stopper 22 can be connected to the opening of the connecting sleeve 21 by welding or threaded connection before assembling the pull rod body 1. A plurality of disc springs 24 are located in the connecting sleeve 21 and are in clearance with the inner wall of the connecting sleeve 21; the first end of the pull rod body 1 passes through the stopper 22 and the disc spring 24 in sequence and is connected to the end of the disc spring 24 away from the stopper 22, and the pull rod body 1, the connecting sleeve 21 and the disc spring 24 are coaxially arranged.

[0024] When the steel tie rod is connected between two structural members, the tension of the tie rod body 1 is transmitted to the disc spring 24, and then the bearing capacity and stability of the steel tie rod are increased by the small deformation and high load-bearing characteristics of the disc spring 24. Once the force on the steel tie rod exceeds the design range, the disc spring 24 can immediately intervene to resist further deformation and maintain the stress state of the structure, thereby ensuring the safety of the structure and improving the stability of the steel tie rod in the large deformation structure.

[0025] In one embodiment of the utility model, the first end of the above-mentioned pull rod body 1 has a first threaded section, and the first joint assembly 2 also includes a fixing nut 26 and a pad 25. Specifically, the outer diameter of the pad 25 is adapted to the outer diameter of the disc spring 24, so as to ensure material saving while improving the stability and uniformity of the force transmission of the pad 25 to the pull rod body 1. The first threaded section of the pull rod body 1 passes through the block 22, the disc spring 24 and the pad 25 in sequence and is threadedly connected with the fixing nut 26, so that the pull rod body 1 and the disc spring 24 are tightly assembled in the connecting sleeve 21. The fixing nut 26 is connected to the first threaded section of the pull rod body 1 and abuts against the pad 25, so that the two ends of the disc spring 24 are respectively pressed against the pad 25 and the block 22, so that the tension of the pull rod body 1 is transmitted to the disc spring 24 through the pad 25, thereby improving the stability of the force transmission.

[0026] In one embodiment of the utility model, the above-mentioned connecting joint 23 includes a first ear plate 231 and a connecting plate 232, the connecting plate 232 is connected to the opening of the connecting sleeve 21 away from the stopper 22, the first ear plate 231 is vertically connected to the side of the connecting plate 232 away from the stopper 22, the first ear plate 231 is arranged parallel to the axis direction of the pull rod body 1, the first pin assembly 4 is assembled on the first ear plate 231 for connecting the first structural member, and the first pin assembly 4 is arranged perpendicular to the plate surface of the first ear plate 231, so that the steel pull rod is assembled on the large deformation In the structure, the first structural member is connected along the axial direction of the pull rod body 1, which can better realize the force transmission of the pull rod body 1; specifically, the connecting plate 232 can be connected to the connecting sleeve 21 by welding or threaded connection, and the connecting plate 232 and the block 22 are located at both ends of the connecting sleeve 21. The connecting sleeve 21, the block 22 and the connecting plate 232 surround the disc spring 24, which can protect the disc spring 24, reduce the structural damage of the disc spring 24 during use, and improve the stability of the steel pull rod structure.

[0027] In one embodiment of the utility model, in order to further protect the disc spring 24, the block 22 and the connecting plate 232 respectively seal the two ends of the connecting sleeve 21 and form a closed cavity in the connecting sleeve 21. Multiple disc springs 24 are located in the closed cavity, thereby reducing the leakage of rainwater, improving the waterproof performance of the connecting sleeve 21, and reducing the corrosion or oxidation of the disc spring 24 due to contact with water, which affects the service life and structural stability of the disc spring 24, thereby improving the structural stability and safety of the steel pull rod.

[0028] In one embodiment of the utility model, a plurality of disc springs 24 are connected between the pad 25 and the block 22 by being matched in pairs and stacked in sequence. Because the deformation amount and load value of a single disc spring 24 are limited, the deformation space and load-bearing capacity of the disc spring 24 can be increased by stacking a plurality of disc springs 24, thereby improving the stability of the steel pull rod.

[0029] In one embodiment of the utility model, the gap between the disc spring 24 and the inner wall of the connecting sleeve 21 is 1-2 mm, which can ensure that there is a gap between the disc spring 24 and the connecting sleeve 21 to achieve the relative telescopic movement of the disc spring 24 in the connecting sleeve 21, and the disc spring 24 can be limited during the movement of the disc spring 24 to prevent the disc spring 24 from being subjected to excessive force and causing abnormal deformation such as twisting, thereby improving the stability of the disc spring 24 and thus improving the stability of the steel pull rod.

[0030] In one embodiment of the utility model, the second end of the tie rod body 1 has a second threaded section; the second joint assembly 3 includes a tie rod joint 31 and a locking nut 32, the tie rod joint 31 has a threaded hole, and the tie rod body 1 is threadedly connected to one end of the tie rod joint 31 having the threaded hole through the second threaded section. Specifically, the length of the second threaded section is greater than the depth of the threaded hole, the locking nut 32 is located on the side of the tie rod joint 31 close to the first end of the tie rod body 1, that is, close to the side of the tie rod body 1, the locking nut 32 is connected to the part of the second threaded section exposed in the threaded hole, and the second threaded section of the tie rod body 1 is shielded, thereby protecting the connection part between the tie rod joint 31 and the tie rod body 1, improving the connection stability between the tie rod joint 31 and the tie rod body 1, and preventing the second threaded section from being exposed and corroded.

[0031] In one embodiment of the utility model, two second ear plates 33 are respectively provided at one end of the tie rod joint 31 away from the threaded hole, and the second pin shaft assembly 5 vertically passes through the two second ear plates 33 and is connected to the side of the second ear plate 33 away from the tie rod body 1. The second structural member can be arranged between the two second ear plates 33 and hinged with the second pin shaft assembly 5 to realize the connection between the tie rod joint 31 and the second structural member. Specifically, the first pin shaft assembly 4 and the second pin shaft assembly 5 are arranged in parallel, so as to realize the parallel connection of the first structural member and the second structural member in the same direction.

[0032] The above are only preferred specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A steel tie rod, characterized in that: The invention comprises a pull rod body, a first joint assembly for connecting a first structural member, and a second joint assembly for connecting a second structural member, wherein the first joint assembly is elastically connected to the first end of the pull rod body and connected to the first structural member through a first pin assembly, and the second joint assembly is rigidly connected to the second end of the pull rod body and connected to the second structural member through a second pin assembly; The first joint assembly includes a connecting sleeve, a block, a connecting joint and a plurality of disc springs; openings are provided at both ends of the connecting sleeve, the block and the connecting joint are respectively connected to the two ends of the connecting sleeve, and the plurality of disc springs are located in the connecting sleeve and are gap-matched with the inner wall of the connecting sleeve; the first end of the pull rod body passes through the block and the disc spring in sequence and is connected to an end of the disc spring away from the block, and the pull rod body, the connecting sleeve and the disc spring are coaxially arranged.

2. The steel tie rod according to claim 1, characterized in that: The first end of the pull rod body has a first threaded section, and the first joint assembly also includes a fixing nut and a gasket, the outer diameter of the gasket is adapted to the outer diameter of the disc spring; the first threaded section of the pull rod body passes through the block, the disc spring and the gasket in sequence, and the fixing nut is connected to the first threaded section of the pull rod body and abuts against the gasket.

3. The steel tie rod according to claim 1, characterized in that: The connecting joint includes a first ear plate and a connecting plate, the connecting plate is connected to the opening of the connecting sleeve at one end away from the stopper, the first ear plate is vertically connected to the side of the connecting plate away from the stopper, and the first pin shaft assembly is assembled on the first ear plate.

4. The steel tie rod according to claim 1, characterized in that: The stopper and the connecting plate seal the two ends of the connecting sleeve respectively, and form a closed cavity in the connecting sleeve, and the plurality of disc springs are located in the closed cavity.

5. The steel tie rod according to claim 2, characterized in that: The plurality of disc springs are connected between the pad and the stopper in a sequentially matched manner.

6. The steel tie rod according to claim 1, characterized in that: The gap between the disc spring and the inner wall of the connecting sleeve is 1-2 mm.

7. The steel tie rod according to claim 1, characterized in that: The second end of the tie rod body has a second threaded section; the second joint assembly includes a tie rod joint, the tie rod joint has a threaded hole, and the tie rod body is threadedly connected to the tie rod joint through the second threaded section.

8. The steel tie rod according to claim 7, characterized in that: The length of the second threaded segment is greater than the depth of the threaded hole; the second joint assembly includes a locking nut, and the locking nut is threadedly connected to a portion of the second threaded segment exposed from the threaded hole.

9. The steel tie rod according to claim 7, characterized in that: The end of the tie rod joint away from the threaded hole is provided with two second ear plates respectively along the axial direction of the tie rod body, and the second pin assembly vertically passes through the two second ear plates and is connected to the side of the second ear plate away from the tie rod body.

10. The steel tie rod according to claim 1, characterized in that: The first pin shaft assembly and the second pin shaft assembly are arranged in parallel.

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