Steel strand stress adjusting device applied to prestressed fish-bellied reaction frame
By adopting a steel strand stress adjustment device with multi-point tensioning and guiding design in the prestressed fish-belly reaction frame, the problem of uneven stress distribution is solved, the stability and durability of the structure are improved, and precise stress control and flexible operating space are provided.
Patent Information
- Application Number
- CN202422661995.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-11-01
AI Technical Summary
In the existing technology, when prestressing is adjusted at one end of the steel strand, it causes uneven stress distribution, affecting the stability and durability of the structure. There is a lack of flexible intermediate adjustment means, and the operation is complicated and difficult to accurately control.
It adopts components such as support base, fish belly beam, guide block, loose card jack and conductor roller, and realizes uniform distribution and precise control of steel strand stress through multi-point tensioning and guiding design, which is suitable for steel strands of different diameters or specifications.
It improves the stability and durability of the structure, provides higher control precision and flexibility, ensures the accuracy and stability of the steel strands during the tensioning process, and adapts to steel strands of different specifications.
Smart Images
Figure CN223434097U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of prestressed stress regulating devices, in particular to a steel strand stress regulating device applied to a prestressed fish-belly reaction frame. Background Art
[0002] Prestressing refers to the process of applying tension to a component in advance, causing the prestressed component to undergo compressive stress, which in turn causes it to deform to a certain extent to cope with the load on the structure itself. Before the engineering structure components are subjected to external loads, applying prestress to the steel strands in the tension module can improve the component's bending resistance and rigidity, delay the appearance of cracks, and increase the durability of the component. For mechanical structures, this means pre-stressing them, which has the benefit of increasing the rigidity of the structure itself and reducing vibration and elastic deformation. This can significantly improve the elastic strength of the tension module, making it more resistant.
[0003] In the existing technology, prestressing adjustment is usually performed only at one end of the steel strand. This method may lead to uneven stress distribution when dealing with longer or more complex structures, affecting the stability and durability of the structure. At the same time, there is a lack of flexible intermediate adjustment means. When precise stress adjustment of the steel strand is required, the operation process is complicated and difficult, and needs to be improved. Utility Model Content
[0004] The utility model mainly provides a prestressing force regulating device, which is a steel strand stress regulating device applied to a prestressing force fish-belly type reaction frame.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a steel strand stress adjustment device used in a prestressed fish belly reaction frame, comprising a support base and a fish belly beam, a web rod is fixedly installed on the surface of the fish belly beam, an inclined rod is fixedly installed on the surface of the fish belly beam, the upper end of the web rod is fixedly connected to a guide block, a steel strand body is passed through the interior of the guide block, the surface of the fish belly beam is fixedly connected to the mounting frame, a loose-clip jack A is fixedly installed on the side of the mounting frame, a cross plate is slidably connected to the interior of the mounting frame, a connecting hook is fixedly installed on the side of the cross plate, a slide groove is provided in the interior of the mounting frame, a slider is fixedly installed on the side of the cross plate, a fixing frame is fixedly installed on the upper end of the support base, a loose-clip jack B is fixedly connected to the upper end of the support base, an adjustment plate is slidably connected to the interior of the fixed frame, a hole is provided on the side of the adjustment plate, and a limit block is fixedly installed on the side of the adjustment plate.
[0006] Preferably, the output end of the jack A is fixedly connected with the side surface of the horizontal plate, one end of the steel strand body is fixedly connected with the inner side of the connecting hook, the horizontal plate is driven to stretch and retract by the jack A, so that the two ends of the steel strand body can be tensioned, thereby realizing more uniform tension distribution, helping to more accurately control the prestress, better balancing the structural stress, and improving the stability and service life of the structure.
[0007] Preferably, the sliding block is in sliding connection with the sliding groove, and the horizontal plate moves more smoothly and stably through the design of the sliding block and the sliding groove.
[0008] Preferably, the output end of the jack B is fixedly connected with the side surface of the adjusting plate, the limiting block is in sliding connection with the fixed frame, the adjusting plate is driven to stretch and retract by the jack B, so that the top part of the steel strand body arranged in the adjusting plate can be more finely tensioned and adjusted, thereby realizing more accurate control of the prestress of the steel strand.
[0009] Preferably, the surface of the fish belly beam is fixedly provided with a vertical plate, the inner side of the vertical plate is rotatably connected with a wire roller one and a wire roller two, the inner side of the vertical plate is slidably connected with a protrusion, the inner side of the vertical plate is rotatably connected with a fixed threaded rod, and the inner side of the vertical plate is fixedly provided with a sliding rod, the wire roller one and the wire roller two can effectively guide the steel strand, so that the steel strand can be kept on the correct path during tensioning, the accuracy and stability of tensioning can be ensured, the interval between the two wire rollers can be adjusted, and different diameters or specifications of the steel strand can be adapted, thereby providing flexible operation space.
[0010] Preferably, the wire roller two is rotatably connected with the protrusion, the fixed threaded rod is threadedly connected with the protrusion, and the sliding rod is slidably connected with the protrusion, the wire roller two moves up and down through the fixed threaded rod, so that the interval between the wire roller one and the wire roller two can be adjusted, and the wire roller two moves more stably through the sliding rod.
[0011] Compared with the prior art, the utility model has the advantages and positive effects that,
[0012] 1. The utility model discloses a start loose card formula jack A makes its output end drive the horizontal plate to slide in the inside of the mounting block to the two sides of the steel strand body fixedly connected with the connecting hook can be tensioned simultaneously, can provide more even tension distribution, help more accurate control prestress, can better balance structure stress, when starting loose card formula jack B makes its output end drive the adjusting plate to move up and down, the top part of the steel strand body that can be set up in the adjusting plate interior is tensioned more finely, this design provides higher control accuracy and flexibility, strengthens the stability and durability of structure.
[0013] 2. The utility model discloses a design through the wire roller one and wire roller two can effectively guide the steel strand, ensure that the steel strand keeps in the correct path in the tensioning process, like this can avoid the steel strand and bend or deviate from the predetermined direction, to guarantee the accuracy and stability of tensioning, when rotating fixed threaded rod makes wire roller two move up and down, thereby realize the interval of wire roller one and wire roller two is adjusted, and then can adapt to different diameter or specification's steel strand, provide flexible operation space. ACCURACY
[0014] Figure 1 A three-dimensional view of a steel strand stress adjusting device applied in a prestressed fish belly type counterforce frame is provided for the utility model;
[0015] Figure 2 An explosion schematic view of loose card formula jack A, horizontal plate and connecting hook of a steel strand stress adjusting device applied in a prestressed fish belly type counterforce frame is provided for the utility model;
[0016] Figure 3 A steel strand stress adjusting device applied in a prestressed fish belly type counterforce frame is provided for the utility model Figure 2 An enlarged view of A in the utility model;
[0017] Figure 4 A fixed frame, loose card formula jack B and adjusting plate local structure schematic view of a steel strand stress adjusting device applied in a prestressed fish belly type counterforce frame is provided for the utility model;
[0018] Figure 5 An explosion schematic view of wire roller two of a steel strand stress adjusting device applied in a prestressed fish belly type counterforce frame is provided for the utility model;
[0019] Figure 6 A steel strand stress adjusting device applied in a prestressed fish belly type counterforce frame is provided for the utility model Figure 5 An enlarged view of B in the utility model.
[0020] Legend: 1, support base; 2, fish belly beam; 3, web; 4, inclined rod; 5, guide block; 6, steel strand body; 7, mounting frame; 8, loose card type jack A; 9, horizontal plate; 10, connecting hook; 11, sliding groove; 12, sliding block; 13, fixed frame; 14, loose card type jack B; 15, adjusting plate; 16, channel; 17, limit block; 18, vertical plate; 19, wire roller one; 20, wire roller two; 21, protrusion; 22, fixed threaded rod; 23, sliding rod. DETAILED DESCRIPTION
[0021] In order to enable the above-mentioned purposes, features and advantages of the present application to be more clearly understood, the present application will be further described below with reference to the drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0022] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be practiced in other ways different from those described herein, therefore, the present application is not limited to the specific embodiments disclosed in the following description.
[0023] Please refer to Figures 1-6 The present application provides a technical solution: a steel strand stress adjusting device applied to a prestressed fish belly type counterforce frame, comprising a support base 1 and a fish belly beam 2, a web 3 is fixedly installed on the surface of the fish belly beam 2, an inclined rod 4 is fixedly installed on the surface of the fish belly beam 2, a guide block 5 is fixedly connected to the upper end of the web 3, a steel strand body 6 is arranged in the guide block 5, a mounting frame 7 is fixedly connected to the surface of the fish belly beam 2, a loose card type jack A 8 is fixedly installed on the side of the mounting frame 7, a horizontal plate 9 is slidably connected in the mounting frame 7, a connecting hook 10 is fixedly installed on the side of the horizontal plate 9, a sliding groove 11 is formed in the mounting frame 7, a sliding block 12 is fixedly installed on the side of the horizontal plate 9, a fixed frame 13 is fixedly installed on the upper end of the support base 1, a loose card type jack B 14 is fixedly connected to the upper end of the support base 1, an adjusting plate 15 is slidably connected in the fixed frame 13, a channel 16 is formed on the side of the adjusting plate 15, and a limit block 17 is fixedly installed on the side of the adjusting plate 15.
[0024] As Figure 2 and Figure 4 shown, the output end of the loose card type jack A 8 is fixedly connected to the side of the horizontal plate 9, one end of the steel strand body 6 is fixedly connected to the inner side of the connecting hook 10, and the horizontal plate 9 is driven to stretch and contract by the loose card type jack A 8, so that the two sides of the steel strand body 6 can be tensioned, thereby realizing that more uniform tension distribution can be provided, which helps to more accurately control the prestress, can better balance the structure stress, and improves the stability and service life of the structure.
[0025] As Figure 3As shown, the slider 12 is slidably connected to the slide groove 11. The design of the slider 12 and the slide groove 11 makes the cross plate 9 smoother and more stable during the movement.
[0026] like Figure 1 and Figure 4 As shown, the output end of the loose-clip jack B14 is fixedly connected to the side of the adjustment plate 15, and the limit block 17 is slidably connected to the fixed frame 13. The loose-clip jack B14 drives the adjustment plate 15 to extend and retract, so that the top part of the steel strand body 6 passing through the adjustment plate 15 can be more finely tensioned and adjusted, thereby achieving more precise control of the prestress of the steel strand.
[0027] like Figure 5 and Figure 6 As shown, a vertical plate 18 is fixedly installed on the surface of the fish belly beam 2, the inner side of the vertical plate 18 is rotatably connected to a wire roller 19 and a wire roller 2 20, the internal sliding connection protrusion 21 of the vertical plate 18, the internal rotation connection fixed threaded rod 22 of the vertical plate 18, and the internal fixed installation slide bar 23 of the vertical plate 18. Through the design of the wire roller 19 and the wire roller 2 20, the steel strand can be effectively guided to ensure that the steel strand remains on the correct path during the tensioning process, so as to avoid the steel strand from bending or deviating from the predetermined direction, thereby ensuring the accuracy and stability of the tensioning, and at the same time, the spacing between the two wire rollers can be adjusted, thereby adapting to steel strands of different diameters or specifications, providing flexible operating space.
[0028] like Figure 6 As shown, the wire roller 20 is rotationally connected to the protrusion 21, the fixed threaded rod 22 is threadedly connected to the protrusion 21, and the slide rod 23 is slidingly connected to the protrusion 21. The fixed threaded rod 22 allows the wire roller 20 to move up and down, thereby adjusting the distance between the wire roller 19 and the wire roller 20. The slide rod 23 makes the wire roller 20 more stable during movement.
[0029] The usage and working principle of this device: When it is necessary to adjust the stress of the steel strand body 6, first start the loose card jack A8 so that its output end drives the cross plate 9 to slide inside the mounting block, so that both sides of the steel strand body 6 fixedly connected to the connecting hook 10 can be tensioned at the same time, and the slider 12 will slide inside the slide groove 11, so that the cross plate 9 is smoother and more stable during the movement, thereby providing a more uniform tension distribution, helping to more accurately control the prestress, and better balance the structural force. When the loose card jack B14 is started, its output end drives the adjustment plate 15 to move up and down, so that the top part of the steel strand body 6 passing through the adjustment plate 15 can be more finely tensioned and adjusted. This design provides higher control accuracy and flexibility. Active, enhances the stability and durability of the structure, during tensioning, the steel strand body 6 will pass between the wire roller 19 and the wire roller 2 20, through the design of the wire roller 19 and the wire roller 2 20, the steel strand body 6 can be effectively guided to ensure that the steel strand body 6 remains on the correct path during the tensioning process, which can avoid the steel strand body 6 from bending or deviating from the predetermined direction, thereby ensuring the accuracy and stability of the tensioning, when the fixed threaded rod 22 is rotated to make the wire roller 2 20 move up and down, the protrusion 21 will slide on the surface of the slide bar 23, and the slide bar 23 makes the wire roller 2 20 more stable during the movement, thereby realizing the adjustment of the distance between the wire roller 19 and the wire roller 2 20, and then can adapt to steel strands of different diameters or specifications, providing flexible operating space.
[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.
Claims
1. A steel strand stress regulating device used in a prestressed fish-belly reaction frame, characterized in that: include: A support base (1) and a fish belly beam (2) are provided. A web (3) is fixedly installed on the surface of the fish belly beam (2). An oblique rod (4) is fixedly installed on the surface of the fish belly beam (2). The upper end of the web (3) is fixedly connected to a guide block (5). A steel strand body (6) is passed through the interior of the guide block (5). The surface of the fish belly beam (2) is fixedly connected to a mounting frame (7). A loose-cage jack A (8) is fixedly installed on the side of the mounting frame (7). The interior of the mounting frame (7) is slidably connected to a transverse plate (9). The transverse plate (9) A connecting hook (10) is fixedly installed on the side of the mounting frame (7), a sliding groove (11) is provided inside the mounting frame (7), a sliding block (12) is fixedly installed on the side of the horizontal plate (9), a fixing frame (13) is fixedly installed on the upper end of the support base (1), the upper end of the support base (1) is fixedly connected to a loose-clip jack B (14), an adjusting plate (15) is slidably connected inside the fixing frame (13), a hole (16) is provided on the side of the adjusting plate (15), and a limiting block (17) is fixedly installed on the side of the adjusting plate (15).
2. The steel strand stress regulating device used in a prestressed fish-belly reaction frame according to claim 1 is characterized in that: The output end of the loose-clip jack A (8) is fixedly connected to the side of the transverse plate (9), and one end of the steel strand body (6) is fixedly connected to the inner side of the connecting hook (10).
3. The steel strand stress regulating device for use in a prestressed fish-belly reaction frame according to claim 1 is characterized in that: The slider (12) is slidably connected to the slide groove (11).
4. The steel strand stress regulating device for use in a prestressed fish-belly reaction frame according to claim 1 is characterized in that: The output end of the loose-clip jack B (14) is fixedly connected to the side of the adjustment plate (15), and the limit block (17) is slidably connected to the fixed frame (13).
5. The steel strand stress regulating device used in a prestressed fish-belly reaction frame according to claim 1 is characterized in that: The surface of the fish belly beam (2) is fixedly mounted with a vertical plate (18), the inner side of the vertical plate (18) is rotatably connected to a wire roller 1 (19) and a wire roller 2 (20), the interior of the vertical plate (18) is slidably connected to a protrusion (21), the interior of the vertical plate (18) is rotatably connected to a fixed threaded rod (22), and the interior of the vertical plate (18) is fixedly mounted with a sliding rod (23).
6. The steel strand stress regulating device used in a prestressed fish-belly reaction frame according to claim 5 is characterized in that: The second conductor roller (20) is rotatably connected to the protrusion (21), the fixed threaded rod (22) is threadedly connected to the protrusion (21), and the sliding rod (23) is slidably connected to the protrusion (21).