Prestressed anchorage device for bridge

Abstract

The utility model relates to the technical field of pre-stressed anchorage devices, and discloses a pre-stressed anchorage device for a bridge, which comprises an anchor backing plate, an anchorage device body is arranged on one side of the anchor backing plate, a stabilizing mechanism is arranged on one side of the anchorage device body, impurities on the surface of a steel line can be removed through an arranged reminding mechanism and a sand paper cylinder in a cleaning sleeve, and after installation is completed, the steel line can be prevented from being damaged. A plurality of clamps need to penetrate through the steel line in sequence and are embedded in the front face of the anchorage device body, when the clamps are embedded in the front face of the anchorage device body, the anchorage device body can extrude the trigger plate, and the trigger plate can push the reminding plate and the stabilizing pad to move at the same time; a user can judge whether the clamp is installed in place or not by observing whether the reminding plate is inserted into the limiting buckle or not, meanwhile, the movement of the stabilizing pad can enhance the extrusion of the stabilizing point to the hole in the bridge, and therefore the friction force between the anchorage device body and the hole is improved, and the installation stability and reliability are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of prestressed anchors, in particular to a prestressed anchor for bridges. Background Art

[0002] Prestressed anchors are devices used to fix and anchor prestressed steel bars or strands in prestressed concrete structures. In bridge engineering, prestressed anchors play a vital role as they are able to transfer prestress into concrete, thereby improving the load-bearing capacity, stiffness and durability of the bridge.

[0003] In the application number 201420321153.1, a "prestressed anchor" is disclosed, which includes an anchor plate, a hollow truncated cone anchor rib is arranged at the a side end of the anchor plate, a hollow cylindrical corrugated tube is fixedly arranged at the a side end of the truncated cone anchor rib, and a plurality of spiral ribs are arranged on the outer surface of the connecting part of the truncated cone anchor rib and the cylindrical corrugated tube; an extrusion plate is arranged at the b side end of the anchor plate, a pressure plate is arranged at the b side end of the extrusion plate, and the pressure plate is fixedly installed on the truncated cone anchor rib by screws. The prestressed anchor has a simple structure, reasonable design, low manufacturing cost and maintenance cost, and high embedded strength. When installing the clamp, the user usually needs to conduct a detailed manual inspection to ensure that the clamp is fully installed in place. This step is crucial to avoid quality problems, because if the clamp is not installed firmly, it may cause uneven prestress transmission or failure, thereby affecting the overall performance and safety of the bridge. However, this inspection process is time-consuming and labor-intensive, which may delay the construction progress and increase costs. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a prestressed anchor for a bridge, which solves the problem that it is inconvenient for a user to confirm whether a clamp is correctly installed on the anchor.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a prestressed anchor for a bridge, comprising an anchor pad, an anchor body is arranged on one side of the anchor pad, a stabilizing mechanism is arranged on one side of the anchor body, the stabilizing mechanism comprises a limiting groove, a cleaning sleeve, a trigger plate, a limiting buckle, a slide groove, a reminder plate, a clamp, a sandpaper tube and a circular groove, a plurality of slide grooves are provided on the front side of the anchor body, a plurality of inner walls of the slide grooves are slidably connected with the trigger plates, a plurality of limiting grooves are provided on the side wall of the anchor body, a plurality of one side walls of the trigger plates are fixedly connected with the reminder plates, a cleaning sleeve is fixedly connected with the back side of the anchor body, a plurality of circular grooves are provided in the middle part of the cleaning sleeve, a protective tube is fixedly connected with the back side of the anchor pad, a bellows is fixedly connected with one end of the protective tube, a plurality of steel lines are provided on one side of the bellows, and a plurality of clamps are embedded with a plurality of clamps on the front side of the anchor body;

[0006] An adjustment mechanism is provided on the outside of the protective tube, and the adjustment mechanism includes a base plate, a support plate, a threaded tube, a screw and threaded ribs. The base plate is fixedly sleeved on one end of the protective tube, and a movable ring is sleeved on the middle part of the protective tube. Support plates are fixedly connected to both sides of the movable ring and both sides of the base plate, wherein screws are fixedly connected to the inner sides of the two support plates, and threaded ribs are sleeved on the outside of the protective tube.

[0007] Preferably, inner walls of the plurality of limit grooves are slidably connected with stabilizing pads, and one ends of the plurality of trigger plates are fixedly connected to the plurality of stabilizing pads respectively.

[0008] Preferably, a plurality of limit buckles are fixedly connected to the front side of the anchor body, and a plurality of reminder plates are respectively engaged and connected with the plurality of limit buckles.

[0009] Preferably, the back side of the cleaning sleeve is attached to the front side of the anchor plate.

[0010] Preferably, the inner walls of the plurality of circular grooves are fixedly embedded with sandpaper tubes, and the plurality of sandpaper tubes are respectively attached to the outer walls of the plurality of steel grain lines.

[0011] Preferably, one end of each of the plurality of steel wires passes through the corrugated tube, the protective tube, the anchor plate, the cleaning sleeve and the anchor body in sequence.

[0012] Preferably, the inner wall of the movable sleeve is slidably connected to the outer wall of the protective tube.

[0013] Preferably, the base plate is fixedly connected to the anchor plate.

[0014] Preferably, the inner sides of the other two support plates are rotatably connected with threaded barrels, and the two screw rods are respectively threadedly connected to the two threaded barrels.

[0015] Preferably, the bottom end of the threaded rib is fixedly connected to the inner side of the base plate, and the top end of the threaded rib is fixedly connected to the bottom end of the movable sleeve.

[0016] Beneficial Effects

[0017] The utility model provides a prestressed anchor for a bridge. Compared with the prior art, it has the following beneficial effects:

[0018] 1. In the utility model, through the reminder mechanism, the sandpaper tube in the cleaning sleeve can remove impurities on the surface of the steel wire. After the installation is completed, multiple clamps need to be passed through the steel wire in turn and embedded in the front of the anchor body. When the clamps are embedded in the front of the anchor body, the anchor body will squeeze the trigger plate, and the trigger plate will simultaneously push the reminder plate and the stabilizing pad to move. The user can judge whether the clamp is installed in place by observing whether the reminder plate is inserted into the inside of the limit buckle. At the same time, the movement of the stabilizing pad can strengthen the squeezing of the stabilizing point on the internal hole of the bridge, thereby increasing the friction between the anchor body and the hole, ensuring the stability and reliability of the installation.

[0019] 2. In the utility model, through the setting of the adjustment mechanism, when the user needs to adjust the stress of the threaded rib, the user can rotate the threaded barrel at the same time to make the threaded barrel and the screw threaded connection, and the two threaded barrels drive the movable sleeve to move, and the movable sleeve squeezes the threaded rib to apply pressure thereto. After the threaded rib is squeezed, the stress of the threaded rib is enhanced, thereby ensuring the uniform distribution of the stress of the threaded rib. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional structural schematic diagram of a prestressed anchor for a bridge proposed by the utility model;

[0021] Figure 2 This is a structural schematic diagram of the adjustment mechanism of a prestressed anchor for a bridge proposed by the utility model;

[0022] Figure 3 A schematic diagram of the structure of the stabilizing mechanism part of the internal structure of a prestressed anchor for a bridge proposed by the utility model;

[0023] Figure 4 A prestressed anchor for a bridge proposed by the utility model Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 This is a schematic diagram of the internal structure of a prestressed anchor for a bridge proposed by the utility model, showing the stabilizing mechanism part.

[0025] Legend:

[0026] 1. Anchor plate; 2. Steel wire; 3. Bellows; 4. Adjustment mechanism; 401. Base plate; 402. Support plate; 403. Threaded tube; 404. Screw; 405. Threaded rib; 406. Movable sleeve; 5. Protective tube; 6. Anchor body; 7. Stabilization mechanism; 701. Limiting groove; 702. Cleaning sleeve; 703. Trigger plate; 704. Limiting buckle; 705. Slide groove; 706. Reminder plate; 707. Clamp; 708. Sandpaper tube; 709. Round groove; 710. Stabilization pad. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1 - Figure 5 The utility model provides two technical solutions, which specifically include the following embodiments:

[0029] Embodiment 1:

[0030] A prestressed anchor for a bridge comprises an anchor pad 1, an anchor body 6 is arranged on one side of the anchor pad 1, a stabilizing mechanism 7 is arranged on one side of the anchor body 6, the stabilizing mechanism 7 comprises a limit groove 701, a cleaning sleeve 702, a trigger plate 703, a limit buckle 704, a slide groove 705, a reminder plate 706, a clamp 707, a sandpaper tube 708 and a circular groove 709, a plurality of slide grooves 705 are arranged on the front side of the anchor body 6, and the inner walls of the plurality of slide grooves 705 are all slidable. A trigger plate 703 is connected to the anchor body 6, a plurality of limit grooves 701 are provided on the side wall of the plurality of trigger plates 703, a reminder plate 706 is fixedly connected to one side wall of each of the plurality of trigger plates 703, a cleaning sleeve 702 is fixedly connected to the back of the anchor body 6, a plurality of circular grooves 709 are provided in the middle of the cleaning sleeve 702, a protective tube 5 is fixedly connected to the back of the anchor pad 1, a bellows 3 is fixedly connected to one end of the protective tube 5, a plurality of steel lines 2 are provided on one side of the bellows 3, and the anchor A plurality of clamps 707 are embedded on the front of the main body 6, and the inner walls of the plurality of limit grooves 701 are slidably connected with a stabilizing pad 710, which is made of rubber and has a certain elasticity. One ends of the plurality of trigger plates 703 are respectively fixedly connected with the plurality of stabilizing pads 710, and the front of the anchor body 6 is fixedly connected with a plurality of limit buckles 704, and a plurality of reminder plates 706 are respectively engaged with the plurality of limit buckles 704, and the back of the cleaning sleeve 702 is attached to the front of the anchor plate 1, and the inner walls of the plurality of circular grooves 709 are fixedly embedded with a sandpaper tube 708, and the mesh number of the sandpaper tube 708 is 200 meshes. The frosted surface of the sandpaper tube 708 can be used to scrape or grind off impurities, oxide layers or other dirt on the surface of the steel wire 2, and the plurality of sandpaper tubes 708 are respectively attached to the outer walls of the plurality of steel wires 2, and one ends of the plurality of steel wires 2 successively penetrate the bellows 3, the protective tube 5, the anchor plate 1, the cleaning sleeve 702 and the anchor body 6.

[0031] During operation, when using the anchor body 6 for installation, the anchor body 6 should first be passed through multiple steel lines 2, and then the anchor body 6 should be pushed to fit the anchor pad 1. During this process, as the anchor body 6 moves, the sandpaper tube 708 in the cleaning sleeve 702 can remove impurities on the surface of the steel lines 2. After the installation is completed, multiple clamps 707 need to be passed through the steel lines 2 in turn and embedded in the front of the anchor body 6. When the clamps 707 are embedded in the front of the anchor body 6, the anchor body 6 will squeeze the trigger plate 703, and the trigger plate 703 will simultaneously push the reminder plate 706 and the stabilizing pad 710 to move. The user can judge whether the clamp 707 is installed in place by observing whether the reminder plate 706 is inserted into the inside of the limit buckle 704. At the same time, the movement of the stabilizing pad 710 can strengthen the squeezing of the stabilizing point on the internal hole of the bridge, thereby increasing the friction between the anchor body 6 and the hole, ensuring the stability and reliability of the installation.

[0032] Embodiment 2:

[0033] On the basis of the first embodiment, the outside of the protective tube 5 is provided with an adjustment mechanism 4, and the adjustment mechanism 4 includes a base plate 401, a support plate 402, a threaded tube 403, a screw 404 and a threaded rib 405. One end of the protective tube 5 is fixedly sleeved with the base plate 401, and the middle part of the protective tube 5 is sleeved with a movable ring 406. Both sides of the movable ring 406 and both sides of the base plate 401 are fixedly connected with the support plate 402, wherein the inner sides of the two support plates 402 are fixedly connected with the screw 404, the outer side of the protective tube 5 is sleeved with a threaded rib 405, and the inner wall of the movable ring 406 Slidingly connected to the outer wall of the protective tube 5, the base plate 401 is fixedly connected to the anchor plate 1, wherein the inner sides of the other two support plates 402 are rotatably connected with the threaded tube 403, and the two screws 404 are threadedly connected to the two threaded tubes 403 respectively, and the bottom end of the threaded rib 405 is fixedly connected to the inner side of the base plate 401, and the top end of the threaded rib 405 is fixedly connected to the bottom end of the movable sleeve 406. It should be noted that in buildings or engineering structures, due to design changes, construction errors or other factors, it may be necessary to adjust the length of the threaded rib 405 to adapt to different situations.

[0034] When the user needs to adjust the stress of the threaded rib 405, the user can rotate the threaded barrel 403 at the same time to make the threaded barrel 403 and the screw rod 404 threadedly connected, and the two threaded barrels 403 drive the movable ring 406 to move, and the movable ring 406 squeezes the threaded rib 405 to apply pressure thereto. After the threaded rib 405 is squeezed, the stress of the threaded rib 405 is enhanced, thereby ensuring the uniform distribution of the threaded rib stress 405.

[0035] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the application should be included in the protection scope of the present application.

Claims

1. A prestressed anchor for a bridge, comprising an anchor pad (1), characterized in that: An anchor body (6) is provided on one side of the anchor pad (1), and a stabilizing mechanism (7) is provided on one side of the anchor body (6). The stabilizing mechanism (7) includes a limiting groove (701), a cleaning sleeve (702), a trigger plate (703), a limiting buckle (704), a slide groove (705), a reminder plate (706), a clamp (707), a sandpaper tube (708) and a circular groove (709). A plurality of slide grooves (705) are provided on the front side of the anchor body (6), and the inner walls of the plurality of slide grooves (705) are slidably connected to the trigger plate (703). The anchor body (6) ) is provided with a plurality of limiting grooves (701), a reminder plate (706) is fixedly connected to one side wall of each of the trigger plates (703), a cleaning sleeve (702) is fixedly connected to the back of the anchor body (6), a plurality of circular grooves (709) are provided in the middle of the cleaning sleeve (702), a protective tube (5) is fixedly connected to the back of the anchor pad (1), a bellows (3) is fixedly connected to one end of the protective tube (5), a plurality of steel lines (2) are provided on one side of the bellows (3), and a plurality of clamps (707) are embedded on the front of the anchor body (6); The protective tube (5) is provided with an adjustment mechanism (4) on the outside, and the adjustment mechanism (4) comprises a base plate (401), a support plate (402), a threaded tube (403), a screw (404) and a threaded rib (405). The base plate (401) is fixedly sleeved on one end of the protective tube (5), a movable sleeve (406) is sleeved on the middle of the protective tube (5), and both sides of the movable sleeve (406) and both sides of the base plate (401) are fixedly connected with the support plate (402), wherein the inner sides of the two support plates (402) are fixedly connected with the screw (404), and the outer side of the protective tube (5) is sleeved with the threaded rib (405).

2. A prestressed anchor for a bridge according to claim 1, characterized in that: The inner walls of the plurality of limit grooves (701) are all slidably connected with a stabilizing pad (710), and one end of the plurality of trigger plates (703) is respectively fixedly connected to the plurality of stabilizing pads (710).

3. A prestressed anchor for a bridge according to claim 1, characterized in that: A plurality of position-limiting buckles (704) are fixedly connected to the front side of the anchor body (6), and a plurality of reminder plates (706) are respectively engaged and connected to the plurality of position-limiting buckles (704).

4. A prestressed anchor for a bridge according to claim 1, characterized in that: The back side of the cleaning sleeve (702) is attached to the front side of the anchor plate (1).

5. A prestressed anchor for a bridge according to claim 1, characterized in that: The inner walls of the plurality of circular grooves (709) are all fixedly embedded with sandpaper tubes (708), and the plurality of sandpaper tubes (708) are respectively attached to the outer walls of the plurality of steel grain lines (2).

6. A prestressed anchor for a bridge according to claim 5, characterized in that: One end of each of the plurality of steel wires (2) passes through the corrugated tube (3), the protective tube (5), the anchor plate (1), the cleaning sleeve (702) and the anchor body (6) in sequence.

7. A prestressed anchor for a bridge according to claim 1, characterized in that: The inner wall of the movable sleeve (406) is slidably connected to the outer wall of the protective tube (5).

8. A prestressed anchor for a bridge according to claim 1, characterized in that: The base plate (401) is fixedly connected to the anchor plate (1).

9. A prestressed anchor for a bridge according to claim 1, characterized in that: The inner sides of the other two support plates (402) are both rotatably connected with threaded barrels (403), and the two screw rods (404) are respectively threadedly connected to the two threaded barrels (403).

10. A prestressed anchor for a bridge according to claim 1, characterized in that: The bottom end of the threaded rib (405) is fixedly connected to the inner side of the base plate (401), and the top end of the threaded rib (405) is fixedly connected to the bottom end of the movable sleeve (406).

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