Intelligent prestress tensioning device for bridge engineering
By using intelligent prestressed tensioning devices in bridge engineering, which utilize components such as anchor clamps and limiting plates to limit steel strands of different diameters, and combine them with jacks and infrared rangefinders to measure tension, the problem of needing to replace existing equipment has been solved, reducing costs and improving the bridge's resistance and measurement accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-03
AI Technical Summary
Existing prestressed tensioning devices require different diameter devices when dealing with steel strands of different thicknesses, which increases installation costs.
An intelligent prestressed tensioning device for bridge engineering was designed. By embedding anchor clamps and limiting plates in the anchor plate, and equipping it with components such as a fixing plate, limiting sleeve, jack, inner shaft assembly, and infrared rangefinder, it can effectively limit the tension of steel strands of different diameters and reduce equipment replacement.
It enables the use of steel strands of different diameters without the need to replace equipment, reducing operating costs, and ensures the bridge's stability and overall resistance through precise tensile force measurement.
Smart Images
Figure CN224077983U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge engineering technology, and more specifically, to an intelligent prestressed tensioning device for bridge engineering. Background Technology
[0002] A prestressed tensioning device is a device used to apply prestress to bridge structures. By applying tension to the prestressing tendons in advance, the structure can better resist tensile stress when subjected to external loads, thereby improving the structure's load-bearing capacity, crack resistance, and durability. However, existing prestressed tensioning devices require devices of different diameters when applying tension to steel strands of different thicknesses, which increases their installation costs. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology, this utility model provides an intelligent prestressed tensioning device for bridge engineering, which has the advantage of being able to apply tension to steel strands of different diameters.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an intelligent prestressed tensioning device for bridge engineering, comprising a steel strand, an anchor plate sleeved on the outer side of the steel strand, an anchor clamp embedded inside the anchor plate, the anchor clamp contacting the steel strand, a limiting plate provided on the outer side of the anchor clamp, the limiting plate being located on the right side of the anchor plate, a fixing plate provided on the right side of the limiting plate, a limiting sleeve fixedly installed on the right side of the fixing plate, the limiting sleeve being sleeved on the outer side of the steel strand and contacting the steel strand.
[0005] As a preferred technical solution of this utility model, a jack is provided on the left side of the limiting sleeve. The jack is sleeved on the outside of the steel strand. An inner shaft assembly is slidably connected inside the jack, and the inner shaft assembly contacts the steel strand.
[0006] As a preferred embodiment of this utility model, a fixing plate is fixedly installed on the outer side of the jack, an observation plate is fixedly installed on the outer side of the fixing plate, a damping rod is fixedly installed on the right side of the fixing plate, a support plate is fixedly installed on the outer side of the damping rod, and an infrared rangefinder is fixedly installed on the left side of the support plate.
[0007] As a preferred embodiment of this utility model, a connecting plate is fixedly installed on the outer side of the inner shaft assembly, and a lifting ring is fixedly installed on the outer side of the jack. The connecting plate and the damping rod are fixedly connected.
[0008] As a preferred embodiment of this utility model, there are multiple steel strands and anchor clamps, with each of the multiple steel strands corresponding to a hole inside the anchor plate, and each of the multiple anchor clamps contacting the multiple steel strands.
[0009] As a preferred technical solution of this utility model, the diameter of the limiting plate is equal to the diameter of the anchor plate, and there are multiple limiting sleeves, all of which are located on the left side of the jack and contact the jack after installation.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] 1. This utility model features an anchor clamp embedded inside an anchor plate, which contacts the steel strand. A limiting plate is located on the outside of the anchor clamp, and a fixing plate is located on the right side of the limiting plate. A limiting sleeve is fixedly installed on the right side of the fixing plate, and the limiting sleeve is fitted onto the outside of the steel strand, contacting it. When dealing with steel strands of different diameters, the anchor plate is first fitted onto the outside of the steel strand to roughly limit its position. At this point, because the diameter of the internal opening of the anchor plate is much larger than the diameter of the steel strand, the steel strand cannot be fixed. Then, the appropriate anchor clamp is inserted into the inside of the anchor plate, filling the gap between the steel strand and the anchor plate, thus limiting the position of the steel strand. This allows for use with steel strands of different diameters without requiring extensive equipment replacement, reducing overall operating costs.
[0012] 2. This utility model features an observation plate fixedly installed on the outside of a fixed plate, a damping rod fixedly installed on the right side of the fixed plate, a support plate fixedly installed on the outside of the damping rod, and an infrared rangefinder fixedly installed on the left side of the support plate. The damping rod and the infrared rangefinder are on the same horizontal line. When the inner shaft assembly drives the damping rod to extend or retract, the damping rod will drive the infrared rangefinder to move. Since the position of the observation plate remains unchanged, the distance moved by the inner shaft assembly along with the steel strand is measured by the distance between the infrared rangefinder and the observation plate. This data is then transmitted to the intelligent control device to calculate the pulled stress, ensuring the accuracy of the data and maintaining the overall stability of the bridge. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure at point A;
[0015] Figure 3 This is a schematic diagram of the limiting disc structure of this utility model;
[0016] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point B;
[0017] Figure 5 This is a schematic diagram of the anchor plate structure of this utility model.
[0018] In the diagram: 1. Steel strand; 2. Anchor plate; 3. Anchor clamp; 4. Limiting plate; 5. Fixing disc; 6. Limiting sleeve; 7. Jack; 8. Inner shaft assembly; 9. Fixing plate; 10. Observation plate; 11. Damping rod; 12. Support plate; 13. Infrared rangefinder; 14. Connecting plate; 15. Lifting ring. Detailed Implementation
[0019] 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.
[0020] like Figures 1 to 5 As shown, this utility model provides an intelligent prestressed tensioning device for bridge engineering, including a steel strand 1, an anchor plate 2 sleeved on the outer side of the steel strand 1, an anchor clamp 3 embedded inside the anchor plate 2, the anchor clamp 3 contacting the steel strand 1, a limiting plate 4 provided on the outer side of the anchor clamp 3, the limiting plate 4 being located on the right side of the anchor plate 2, a fixing plate 5 provided on the right side of the limiting plate 4, a limiting sleeve 6 fixedly installed on the right side of the fixing plate 5, the limiting sleeve 6 being sleeved on the outer side of the steel strand 1 and contacting the steel strand 1.
[0021] When dealing with steel strands 1 of different diameters, firstly, the anchor plate 2 is fitted onto the outside of the steel strand 1 to roughly limit its position. At this point, because the diameter of the internal opening of the anchor plate 2 is much larger than the diameter of the steel strand 1, the steel strand 1 cannot be fixed. Then, the matching anchor clip 3 is inserted into the inside of the anchor plate 2 to fill the gap between the steel strand 1 and the anchor plate 2, thus limiting the position of the steel strand 1. This achieves the effect of using the steel strand 1 with different diameters without having to replace a lot of equipment, reducing the overall operating cost.
[0022] Among them, the left side of the limiting sleeve 6 is provided with a jack 7, which is sleeved on the outside of the steel strand 1. The inner shaft assembly 8 is slidably connected inside the jack 7, and the inner shaft assembly 8 is in contact with the steel strand 1.
[0023] After the device on the right side of jack 7 is installed, and jack 7 is supplied with oil by the external oil station, the inner shaft assembly 8 will drive the steel strand 1 to pull to the right, so that the steel strand 1 generates prestress and increases the overall resistance of the bridge.
[0024] Among them, a fixing plate 9 is fixedly installed on the outside of the jack 7, an observation plate 10 is fixedly installed on the outside of the fixing plate 9, a damping rod 11 is fixedly installed on the right side of the fixing plate 9, a support plate 12 is fixedly installed on the outside of the damping rod 11, and an infrared rangefinder 13 is fixedly installed on the left side of the support plate 12.
[0025] The damping rod 11 and the infrared rangefinder 13 are on the same horizontal line. When the inner shaft assembly 8 drives the damping rod 11 to extend or retract, the damping rod 11 will drive the infrared rangefinder 13 to move. Since the position of the observation plate 10 remains unchanged, the distance moved by the inner shaft assembly 8 and the steel strand 1 will be measured by the distance between the infrared rangefinder 13 and the observation plate 10. The data is then transmitted to the intelligent control device to calculate the pulled stress, so that the data has a certain degree of accuracy and the overall stability of the bridge is ensured.
[0026] The inner shaft assembly 8 has a connecting plate 14 fixedly installed on its outer side, and the jack 7 has a lifting ring 15 fixedly installed on its outer side. The connecting plate 14 and the damping rod 11 are fixedly connected.
[0027] The connecting plate 14 is connected to the inner shaft assembly 8 and the damping rod 11 respectively, so that the inner shaft assembly 8 will drive the infrared rangefinder 13 to move during the movement. At the same time, the lifting ring 15 is connected to the external lifting mechanism, so that the jack 7 can be easily moved.
[0028] There are multiple steel strands 1 and anchor clamps 3. The multiple steel strands 1 are respectively connected to the holes inside the anchor plate 2, and the multiple anchor clamps 3 are respectively in contact with the multiple steel strands 1.
[0029] The main function of the multiple anchor clamps 3 is to limit the multiple steel strands 1, so that the anchor plate 2 drives the anchor clamps 3 to pull the multiple steel strands 1 to the right without causing them to move, thus preventing the multiple steel strands 1 from resetting.
[0030] The diameter of the limiting plate 4 is equal to the diameter of the anchor plate 2. There are multiple limiting sleeves 6, all of which are located on the left side of the jack 7 and come into contact with the jack 7 after installation.
[0031] The main function of the multiple limiting sleeves 6 is to increase the reliability of the steel strands 1 after movement, and to prevent some steel strands 1 from being unsecured, which could lead to reset and failure to be detected in time, thereby reducing the overall risk resistance of the bridge.
[0032] Working principle and usage process of this utility model:
[0033] Firstly, an anchor clamp 3 is embedded inside the anchor plate 2, and the anchor clamp 3 contacts the steel strand 1. A limiting plate 4 is provided on the outside of the anchor clamp 3, and a fixing plate 5 is provided on the right side of the limiting plate 4. A limiting sleeve 6 is fixedly installed on the right side of the fixing plate 5. At the same time, the limiting sleeve 6 is sleeved on the outside of the steel strand 1 and contacts the steel strand 1. When facing steel strands 1 with different diameter values, the anchor plate 2 is first sleeved on the outside of the steel strand 1 to limit the approximate position of the steel strand 1. At this time, since the diameter of the internal opening of the anchor plate 2 is much larger than the diameter of the steel strand 1, the steel strand 1 cannot be fixed. Then, the adapted anchor clamp 3 is inserted into the inside of the anchor plate 2 to fill the gap between the steel strand 1 and the anchor plate 2, thereby limiting the steel strand 1. This achieves the effect of not needing to replace a lot of equipment when facing steel strands 1 with different diameter values, reducing the overall usage cost.
[0034] Secondly, since a jack 7 is provided on the left side of the limiting sleeve 6, the jack 7 is sleeved on the outside of the steel strand 1. The inner shaft assembly 8 is slidably connected inside the jack 7. The inner shaft assembly 8 contacts the steel strand 1. When the device on the right side of the jack 7 is installed, after the jack 7 is supplied with oil by the external oil station, the inner shaft assembly 8 will drive the steel strand 1 to pull to the right, so that the steel strand 1 generates prestress and increases the overall resistance of the bridge.
[0035] Finally, since an observation plate 10 is fixedly installed on the outside of the fixed plate 9, a damping rod 11 is fixedly installed on the right side of the fixed plate 9, a support plate 12 is fixedly installed on the outside of the damping rod 11, and an infrared rangefinder 13 is fixedly installed on the left side of the support plate 12, with the damping rod 11 and the infrared rangefinder 13 on the same horizontal line, when the inner shaft assembly 8 drives the damping rod 11 to extend or retract, the damping rod 11 will drive the infrared rangefinder 13 to move. Since the position of the observation plate 10 remains unchanged, while the inner shaft assembly 8 moves, the distance between the infrared rangefinder 13 and the observation plate 10 will be measured to determine the distance the inner shaft assembly 8 drives the steel strand 1 to move. This data is then transmitted to the intelligent control device to calculate the pulled stress, ensuring the accuracy of the data and the overall stability of the bridge.
[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An intelligent prestressed tensioning device for bridge engineering, comprising steel strands (1), characterized in that: An anchor plate (2) is sleeved on the outside of the steel strand (1). An anchor clamp (3) is embedded inside the anchor plate (2). The anchor clamp (3) contacts the steel strand (1). A limiting plate (4) is provided on the outside of the anchor clamp (3). The limiting plate (4) is located on the right side of the anchor plate (2). A fixing plate (5) is provided on the right side of the limiting plate (4). A limiting sleeve (6) is fixedly installed on the right side of the fixing plate (5). The limiting sleeve (6) is sleeved on the outside of the steel strand (1) and contacts the steel strand (1).
2. The intelligent prestressed tensioning device for bridge engineering according to claim 1, characterized in that: A jack (7) is provided on the left side of the limiting sleeve (6). The jack (7) is sleeved on the outside of the steel strand (1). An inner shaft assembly (8) is slidably connected inside the jack (7). The inner shaft assembly (8) is in contact with the steel strand (1).
3. The intelligent prestressed tensioning device for bridge engineering according to claim 2, characterized in that: A fixing plate (9) is fixedly installed on the outside of the jack (7), an observation plate (10) is fixedly installed on the outside of the fixing plate (9), a damping rod (11) is fixedly installed on the right side of the fixing plate (9), a support plate (12) is fixedly installed on the outside of the damping rod (11), and an infrared rangefinder (13) is fixedly installed on the left side of the support plate (12).
4. The intelligent prestressed tensioning device for bridge engineering according to claim 3, characterized in that: A connecting plate (14) is fixedly installed on the outer side of the inner shaft assembly (8), and a lifting ring (15) is fixedly installed on the outer side of the jack (7). The connecting plate (14) and the damping rod (11) are fixedly connected.
5. The intelligent prestressed tensioning device for bridge engineering according to claim 1, characterized in that: There are multiple steel strands (1) and anchor clamps (3), and the multiple steel strands (1) are respectively connected to the holes inside the anchor plate (2), and the multiple anchor clamps (3) are respectively in contact with the multiple steel strands (1).
6. The intelligent prestressed tensioning device for bridge engineering according to claim 2, characterized in that: The diameter of the limiting plate (4) is equal to the diameter of the anchor plate (2). There are multiple limiting sleeves (6), and all of the multiple limiting sleeves (6) are located on the left side of the jack (7) and are in contact with the jack (7) after installation.