Prestressed anchorage device suitable for highway bridge construction
By designing a detachable fixed plate structure and anti-loosening components in the prestressed anchor, the cumbersome problem of anchor replacement in the prior art is solved, and a more efficient construction process and more stable steel strand fixation is achieved.
Patent Information
- Application Number
- CN202420301166.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-19
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-02-19
AI Technical Summary
When existing prestressed anchors need to be replaced, the anchor pad plate and the flat anchor plate cannot be detached, resulting in cumbersome replacement process and increasing the construction volume.
A prestressed anchor including a fixing plate, an anchor pad, a mounting plate, an anti-loosening component and a sliding connection is designed, and the fixing is achieved through the coordination of pulling discs, connecting rods, compression springs, limiting plates, clamps and slide grooves. The plate is removed and replaced, and the anti-loosening effect is provided in the anchor pad plate by the fitting of the limit tube, spring, bump and clip.
It realizes convenient replacement of fixed plates and anti-loosening of steel strands, reduces construction volume and improves construction efficiency.
Smart Images
Figure CN222275263U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of highway bridge construction, in particular to a prestressed anchor suitable for highway bridge construction. Background Art
[0002] Highway bridge engineering refers to the planning, design, construction, maintenance, and repair of highway structures across waters, valleys, and all traffic passages. In highway bridge construction, prestressed anchors are equipment used to fix prestressed steel strands, which are crucial to ensuring the stability and bearing capacity of the bridge structure.
[0003] However, most of the existing prestressed anchors bury flat anchor plates in the bridge and then reinforce them by bolting. The anchor pad and the flat anchor plate are not removable. When the anchor is not suitable and different anchors need to be replaced, it is troublesome and increases the construction workload. Therefore, a prestressed anchor suitable for highway bridge construction is proposed to solve the above problems. Utility Model Content
[0004] In order to make up for the above shortcomings, the utility model provides a prestressed anchor suitable for highway bridge construction, aiming to improve the problem in the prior art that the anchor plate and the flat anchor plate cannot be disassembled, and when the anchor is not suitable and needs to be replaced with a different anchor, it is troublesome and increases the construction workload.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a prestressed anchor suitable for highway bridge construction, comprising a fixing plate, an anchor pad is fixedly connected to the front side of the fixing plate, a plurality of evenly distributed steel strands are slidably connected inside the anchor pad, a mounting plate is slidably connected to the outer periphery of the fixing plate, fixing components are arranged on the left and right sides of the interior of the mounting plate, the fixing component comprises a compression spring, one end of the compression spring is fixedly connected to a limiting plate, a block is fixedly connected to the side of the limiting plate away from the compression spring, a connecting rod is fixedly connected to the side of the limiting plate close to the compression spring, the compression spring is sleeved on the outer periphery of the connecting rod, a spiral rib is fixedly connected to the rear side of the mounting plate, and a plurality of anti-loosening components are arranged inside the anchor pad.
[0006] Furthermore, the anti-loosening assembly includes two limiting tubes, the two limiting tubes are fixedly connected to the inside of the anchor plate, the inside of the two limiting tubes are fixedly connected with springs, and the opposite sides of the two springs are fixedly connected with bumps.
[0007] Furthermore, sliding grooves are provided inside both left and right ends of the mounting plate, and the two limiting plates are slidably connected inside the two sliding grooves respectively.
[0008] Furthermore, both left and right ends of the anchor plate are provided with card slots, and the two card blocks are slidably connected inside the two card slots respectively.
[0009] Furthermore, the outer peripheries of the plurality of steel strands are slidably connected with clips.
[0010] Furthermore, a limiting groove is provided inside the limiting tube, and the protrusion is slidably connected in the limiting groove.
[0011] Furthermore, the mounting plate is threadedly connected with a plurality of evenly distributed bolts around its periphery.
[0012] Furthermore, one end of the connecting rod away from the limiting plate is fixedly connected with a pull plate.
[0013] The utility model has the following beneficial effects:
[0014] 1. In the utility model, through the cooperation between the pull plate, the connecting rod, the compression spring, the limit plate, the clamping block, the slide groove and the clamping groove, the pull plate is used to pull the connecting rod to drive the limit plate to squeeze the compression spring, so that the clamping block moves into the slide groove, and the fixed plate can be removed from the mounting plate for replacement.
[0015] 2. In the utility model, through the mutual cooperation between the limit tube, the spring and the protrusion, after the steel strand enters the anchor plate, the spring provides elastic support so that the protrusion always fits the outer periphery of the steel strand, thereby achieving the effect of preventing loosening. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A three-dimensional schematic diagram of a prestressed anchor suitable for highway bridge construction proposed by the utility model;
[0017] Figure 2 This is a structural schematic diagram of a clamping block of a prestressed anchor suitable for highway bridge construction proposed by the utility model;
[0018] Figure 3 This is a schematic structural diagram of a limiting pipe of a prestressed anchor suitable for highway bridge construction proposed by the utility model;
[0019] Figure 4 The utility model is a schematic structural diagram of a spring of a prestressed anchor suitable for highway bridge construction.
[0020] Legend:
[0021] 1. Steel strand; 2. Clip; 3. Anchor plate; 4. Fixing plate; 5. Bolt; 6. Mounting plate; 7. Pull plate; 8. Connecting rod; 9. Compression spring; 10. Limiting plate; 11. Block; 12. Slide; 13. Slot; 14. Limiting tube; 15. Spring; 16. Bump; 17. Spiral rib. 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] Reference Figure 1-2 The utility model provides an embodiment: a prestressed anchor suitable for highway bridge construction, including a fixing plate 4, a front side of the fixing plate 4 is fixedly connected to an anchor pad 3, a plurality of uniformly distributed steel strands 1 are slidably connected inside the anchor pad 3, a mounting plate 6 is slidably connected to the outer periphery of the fixing plate 4, and a fixing component is arranged on the left and right sides of the mounting plate 6, the fixing component includes a compression spring 9, one end of the compression spring 9 is fixedly connected to a limiting plate 10, a side of the limiting plate 10 away from the compression spring 9 is fixedly connected to a clamping block 11, and a side of the limiting plate 10 close to the compression spring 9 is fixedly connected to A connecting rod 8 is connected, and a compression spring 9 is sleeved on the outer periphery of the connecting rod 8. A spiral rib 17 is fixedly connected to the rear side of the mounting plate 6. A plurality of anti-loosening components are arranged inside the anchor plate 3. Slide grooves 12 are provided inside the left and right ends of the mounting plate 6. Two limit plates 10 are respectively slidably connected inside the two slide grooves 12. A clamping groove 13 is provided at the left and right ends of the anchor plate 3. Two clamping blocks 11 are respectively slidably connected inside the two clamping grooves 13. A plurality of evenly distributed bolts 5 are threadedly connected around the mounting plate 6. A pull plate 7 is fixedly connected to the end of the connecting rod 8 away from the limit plate 10.
[0024] Specifically, the fixing plate 4 is used to connect the anchor plate 3, the anchor plate 3 is used to accommodate the steel strand 1, the mounting plate 6 is used to install the fixing plate 4, and the mounting plate 6 is fixed at the construction site by multiple bolts 5 on the outer periphery of the mounting plate 6. The clamping block 11 is used to fix the fixing plate 4 in the mounting plate 6, and the limit plate 10 is used to limit the movement range of the compression spring 9. The connecting rod 8 is used to connect the limit plate 10. The limit plate 10 is connected by the connecting rod 8, so that the connecting rod 8 can be driven to move by the pull plate 7, so that the connecting rod 8 drives the limit plate 10 to squeeze the compression spring 9, so that the clamping block 11 enters the slide groove 12, and then the fixing plate 4 can be taken out of the mounting plate 6, or the fixing plate 4 can be installed in the mounting plate 6.
[0025] Reference Figure 2-4 The anti-loosening component includes two limit tubes 14, which are fixedly connected to the inside of the anchor plate 3. Springs 15 are fixedly connected to the inside of the two limit tubes 14, and protrusions 16 are fixedly connected to the opposite sides of the two springs 15. The outer peripheries of the multiple steel strands 1 are slidably connected with clips 2. A limit groove is opened inside the limit tube 14, and the protrusion 16 is slidably connected in the limit groove.
[0026] Specifically, the protrusion 16 abuts against the steel strand 1 to prevent the steel strand 1 from loosening in the anchor plate 3. The spring 15 is used to provide an elastic reaction force so that the protrusion 16 can always fit the outer periphery of the steel strand 1. The limiting tube 14 is used to accommodate the protrusion 16. The clip 2 is sleeved on the outer periphery of the steel strand 1. When the steel strand 1 enters the anchor plate 3, the clip 2 is inserted into the junction between the steel strand 1 and the anchor plate 3 to prevent the steel strand 1 from loosening.
[0027] Working principle: When in use, first insert the steel strand 1 into the anchor plate 3, and the clip 2 is embedded between the steel strand 1 and the anchor plate 3, then install the fixing plate 4 in the mounting plate 6, and drive the connecting rod 8 through the pull plate 7 to make the limit plate 10 squeeze the compression spring 9, and the block 11 enters the slide groove 12, and then insert the mounting plate 6 into the fixing plate 4. After ensuring that the block 11 can be embedded in the card groove 13, release the pull plate 7, the compression spring 9 loses pressure and generates thrust to push the block 11 to be embedded in the card groove 13, so that the mounting plate 6 can be fixed in the fixing plate 4. Secondly, after the steel strand 1 enters the anchor plate 3, the protrusion 16 will contact the surface of the steel strand 1, thereby preventing the steel strand 1 from loosening.
[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A prestressed anchor suitable for highway bridge construction, comprising a fixing plate (4), characterized in that: The front side of the fixing plate (4) is fixedly connected to an anchor plate (3), the interior of the anchor plate (3) is slidably connected to a plurality of evenly distributed steel strands (1), the outer periphery of the fixing plate (4) is slidably connected to a mounting plate (6), the left and right sides of the interior of the mounting plate (6) are provided with fixing components, the fixing components comprising a compression spring (9), one end of the compression spring (9) is fixedly connected to a limit plate (10), a side of the limit plate (10) away from the compression spring (9) is fixedly connected to a clamping block (11), a side of the limit plate (10) close to the compression spring (9) is fixedly connected to a connecting rod (8), the compression spring (9) is sleeved on the outer periphery of the connecting rod (8), a spiral rib (17) is fixedly connected to the rear side of the mounting plate (6), and a plurality of anti-loosening components are provided inside the anchor plate (3).
2. A prestressed anchor suitable for highway bridge construction according to claim 1, characterized in that: The anti-loosening assembly comprises two limit tubes (14), the two limit tubes (14) are fixedly connected inside the anchor plate (3), the insides of the two limit tubes (14) are fixedly connected with springs (15), and the two springs (15) are fixedly connected with protrusions (16) on the opposite sides thereof.
3. A prestressed anchor suitable for highway bridge construction according to claim 1, characterized in that: Slide grooves (12) are provided inside both left and right ends of the mounting plate (6), and the two limit plates (10) are slidably connected inside the two slide grooves (12) respectively.
4. A prestressed anchor suitable for highway bridge construction according to claim 1, characterized in that: The left and right ends of the anchor pad (3) are each provided with a clamping slot (13), and the two clamping blocks (11) are respectively slidably connected inside the two clamping slots (13).
5. A prestressed anchor suitable for highway bridge construction according to claim 2, characterized in that: The outer circumferences of the plurality of steel strands (1) are all slidably connected with clips (2).
6. A prestressed anchor suitable for highway bridge construction according to claim 2, characterized in that: A limiting groove is provided inside the limiting tube (14), and the protrusion (16) is slidably connected in the limiting groove.
7. A prestressed anchor suitable for highway bridge construction according to claim 1, characterized in that: The mounting plate (6) is threadedly connected to a plurality of evenly distributed bolts (5) around its periphery.
8. The prestressed anchor suitable for highway bridge construction according to claim 1, characterized in that: One end of the connecting rod (8) away from the limiting plate (10) is fixedly connected to a pull plate (7).