Concrete bridge reinforcing construction prestressed anchorage device

Abstract

The utility model relates to the technical field of prestressed anchorage devices, and discloses a concrete bridge reinforcing construction prestressed anchorage device which comprises an adjusting seat, a reinforcing seat is fixedly connected to the middle of the upper surface of the adjusting seat, a rotating block is rotationally connected to the middle of the upper surface of the reinforcing seat, and a worm is fixedly connected to the lower end of the outer wall of the rotating block. Limiting blocks are rotationally connected to the front end and the rear end of the interior of the adjusting seat, adjusting gears are fixedly connected to the middles of the outer walls of the limiting blocks, and connecting blocks are fixedly connected to the outer walls of the two sides of each limiting block. According to the pre-stressed anchorage device, the exposed adjusting seat arranged on the pre-stressed anchorage device can enable adjustment in the installation and follow-up maintenance process to be quicker and simpler, so that when a user conducts follow-up regular inspection and maintenance, the elastic force of the spiral rib can be adjusted through the rotating block, and the service life of the spiral rib is prolonged. And the prestress of the anchorage device can be in a required range for a long time, so that the convenience during maintenance is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to prestressed anchorage device technical field especially relates to a concrete bridge reinforcing construction prestressed anchorage device. BACKGROUND

[0002] The concrete bridge reinforcing construction prestressed anchorage device is mainly used for enhancing the bearing capacity of bridge and prolonging its service life, by exerting prestress, the anchorage device can effectively transmit stress to the concrete structure, offset the influence brought by external load, thereby improving the bending, shearing capacity and overall stability of bridge.

[0003] However, if the pressure of spiral rib needs to be adjusted after the traditional anchorage device is installed, it usually needs to be disassembled and reinstalled, which is relatively cumbersome and not flexible, not only increases the working hours, but also may lead to the complication of construction process, and during subsequent maintenance, the prestress cannot be conveniently reinforced and adjusted.

[0004] Therefore, the technical personnel in the prior art provide a concrete bridge reinforcing construction prestressed anchorage device to solve the problems in the background art. CONTENT OF THE UTILITY MODEL

[0005] The utility model discloses a concrete bridge reinforcing construction prestressed anchorage device, which is provided with an adjusting seat, when the anchorage device is installed and the pressure of the spiral rib at both ends is set, the connecting block groove is rotated by rotating the rotating block, thereby adjusting the position of the connecting rod, and then the secondary fine adjustment of the pressure of the spiral rib is completed, the problem of different prestresses at both ends is reduced, or the reinforcing adjustment during subsequent maintenance of the loose spiral rib is ensured, and the pressure of the spiral rib is always kept in the best state.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A concrete bridge reinforcing construction prestressed anchorage device, including the adjusting seat, the middle part of the upper surface of adjusting seat is fixedly connected with the reinforcing seat, the middle part of the upper surface of reinforcing seat is rotatably connected with the rotating block, the lower end of rotating block outer wall is fixedly connected with the worm, the front end and rear end in the adjusting seat are rotatably connected with the limiting block, the middle part of limiting block outer wall is fixedly connected with the adjusting gear, the outer wall of both sides of limiting block is fixedly connected with the connecting block, the front end of both sides outer wall of adjusting seat is provided with first pull rod, the rear end of both sides outer wall of adjusting seat is provided with second pull rod, the side close to adjusting seat of first pull rod and second pull rod is fixedly connected with the position adjusting screw rod, the side away from adjusting seat of first pull rod and second pull rod is fixedly connected with the locking screw rod, the outer wall of first pull rod and second pull rod is respectively equipped with the locating plate and spiral rib.

[0008] Through the technical scheme, the exposed adjusting seat of the concrete bridge reinforcing construction prestressed anchor device can make the adjustment in the installation and subsequent maintenance process more rapid and simple, so that the user can adjust the elasticity of the spiral rib through the rotating block during the subsequent regular inspection and maintenance, so that the prestress of the anchor device can be in the required range for a long time, thereby improving the convenience during maintenance.

[0009] Further, the middle part of the outer wall of the reinforcing seat is threadedly matched with a reinforcing screw;

[0010] Through the technical scheme, the position of the rotating block can be extruded and locked by setting the reinforcing screw.

[0011] Further, the worm is engaged with the adjusting gear;

[0012] Through the technical scheme, the rotating block can control the angle adjustment and rotation of the limiting block.

[0013] Further, a threaded groove is formed in the middle part of the outer wall of the connecting block away from the limiting block;

[0014] Through the technical scheme, the directions of the threaded grooves on the two sides are different, which makes the first pull rod and the second pull rod on the two sides synchronously displace to the adjusting seat when the connecting block rotates.

[0015] Further, the second pull rod is threadedly matched with the rear connecting block through the position adjusting threaded rod;

[0016] Through the technical scheme, the rear connecting block can control the synchronous displacement of the second pull rod on the two sides when the rear connecting block rotates.

[0017] Further, the first pull rod is threadedly matched with the front connecting block through the position adjusting threaded rod;

[0018] Through the technical scheme, the front connecting block can control the synchronous displacement of the first pull rod on the two sides when the front connecting block rotates.

[0019] Further, the outer wall of the locking threaded rod is respectively threadedly matched with a positioning nut and a reinforcing nut;

[0020] Through the technical scheme, the user can position the positioning plate through the positioning nut and the reinforcing nut, and reduce the possibility of disengagement of the positioning plate from the first pull rod and the second pull rod.

[0021] Further, the positioning plate is fixedly connected with the spiral rib;

[0022] Through the technical scheme, the first pull rod and the second pull rod can pull the spiral rib through the positioning plate, and then the spiral rib generates a contraction and rebound force between the positioning plate and the bridge.

[0023] The utility model has the advantages of the following:

[0024] 1. Compared with the traditional prestress anchor device for reinforcing construction of a concrete bridge, the prestress anchor device for reinforcing construction of a concrete bridge provided by the utility model is provided with an adjusting seat, and when the anchor device is installed and the pressure of the spiral rib at both ends is set, the connecting block groove can be rotated through the rotating block, so that the position of the connecting rod is adjusted, the pressure of the spiral rib is fine-adjusted again, the problem of different prestresses at both ends is reduced, or the loosened spiral rib is reinforced and adjusted during subsequent maintenance, and the pressure of the spiral rib is always kept in the best state.

[0025] 2. Compared with the traditional prestress anchor device for reinforcing construction of a concrete bridge, the prestress anchor device for reinforcing construction of a concrete bridge provided by the utility model is provided with an exposed adjusting seat, so that the adjustment during installation and subsequent maintenance is faster and simpler, the elastic force of the spiral rib can be adjusted through the rotating block during subsequent regular inspection and maintenance, the prestress of the anchor device can be kept in the required range for a long time, and the convenience during maintenance is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The utility model provides a prestress anchor device for reinforcing construction of a concrete bridge, and a structure schematic view of the prestress anchor device is shown in the figure.

[0027] Figure 2 The utility model provides a prestress anchor device for reinforcing construction of a concrete bridge, and a structure schematic view of the adjusting seat of the prestress anchor device is shown in the figure.

[0028] Figure 3 The utility model provides a prestress anchor device for reinforcing construction of a concrete bridge, and a structure schematic view of the first pull rod of the prestress anchor device is shown in the figure.

[0029] Figure 4 The utility model provides a prestress anchor device for reinforcing construction of a concrete bridge, and a sectional view of the adjusting seat of the prestress anchor device is shown in the figure.

[0030] Figure 5 The utility model provides a prestress anchor device for reinforcing construction of a concrete bridge, and a structure schematic view of the rotating block of the prestress anchor device is shown in the figure.

[0031] LEGEND:

[0032] 1, adjustment seat; 2, reinforcing seat; 3, reinforcing screw; 4, rotating block; 5, worm; 6, limiting block; 7, adjusting gear; 8, connecting block; 9, threaded groove; 10, first pull rod; 11, second pull rod; 12, position adjusting threaded rod; 13, locking threaded rod; 14, positioning plate; 15, spiral rib; 16, positioning nut; 17, reinforcing nut. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0034] One embodiment provided by the utility model:

[0035] Referring to Figure 1 、 2 , 3, a concrete bridge reinforcing construction prestressed anchor device, including adjustment seat 1, the middle part of the upper surface of adjustment seat 1 is fixedly connected with reinforcing seat 2, the middle part of the upper surface of reinforcing seat 2 is rotatably connected with rotating block 4, the lower end of the outer wall of rotating block 4 is fixedly connected with worm 5, the front end and the rear end in the inside of adjustment seat 1 are rotatably connected with limiting block 6, the middle part of the outer wall of limiting block 6 is fixedly connected with adjusting gear 7, the outer wall of the both sides of limiting block 6 is fixedly connected with connecting block 8, the front end of the both sides of the outer wall of adjustment seat 1 is provided with first pull rod 10, the rear end of the both sides of the outer wall of adjustment seat 1 is provided with second pull rod 11, the side close to adjustment seat 1 of first pull rod 10 and second pull rod 11 is fixedly connected with position adjusting threaded rod 12, the side away from adjustment seat 1 of first pull rod 10 and second pull rod 11 is fixedly connected with locking threaded rod 13, the outer wall of first pull rod 10 and second pull rod 11 is respectively sleeved with positioning plate 14 and spiral rib 15, the exposed adjustment seat 1 of the concrete bridge reinforcing construction prestressed anchor device can make the adjustment in the process of installation and subsequent maintenance more quickly and simply, so that the user can adjust the elasticity of spiral rib 15 through rotating block 4 when subsequent regular inspection and maintenance, so that the prestress of the anchor device can be in the required range for a long time, and the convenience of maintenance is improved.

[0036] Referring to Figure 1 、 2, 4, the middle of the outer wall of the reinforcing seat 2 side screw thread cooperation has reinforcing screw 3, by setting reinforcing screw 3 so that the position of the rotating block 4 can be extruded locking, worm 5 and adjustment gear 7 meshing, so that the rotating block 4 can control the angle of the limiting block 6 adjustment rotation, connecting block 8 away from the outer wall of the middle of the limiting block 6 side is provided with a threaded groove 9, both sides of the threaded groove 9 is set in different directions, which makes the connecting block 8 rotation, both sides of the first pull rod 10 and the second pull rod 11 synchronous displacement to the adjustment seat 1, the second pull rod 11 through the position adjusting screw rod 12 and the rear connecting block 8 screw thread cooperation, so that the rear connecting block 8 can control both sides of the second pull rod 11 synchronous displacement when rotating, the first pull rod 10 through the position adjusting screw rod 12 and the front connecting block 8 screw thread cooperation, so that the front connecting block 8 can control both sides of the first pull rod 10 synchronous displacement when rotating.

[0037] Referring to Figure 1 、 2 , 3, the outer wall of the locking screw rod 13 is respectively screw thread cooperation with the positioning nut 16 and the reinforcing nut 17, so that the user can position the positioning plate 14 through the positioning nut 16 and the reinforcing nut 17, reduce the possibility of the positioning plate 14 from the first pull rod 10 and the second pull rod 11, the positioning plate 14 and the spiral rib 15 fixed connection, so that the first pull rod 10 and the second pull rod 11 can pull the spiral rib 15 through the positioning plate 14, and then make the spiral rib 15 in the positioning plate 14 and the bridge produce shrinkage resilience.

[0038] Working principle: first, the bottom of the bridge is provided with a groove for installation, then the anchor is placed in the groove, and the position of the positioning plate 14 is fixed through the positioning nut 16 and the reinforcing nut 17, so that the spiral rib 15 can produce elastic force in the groove, through the elastic force of both ends of the spiral rib 15 to simultaneously apply a predetermined elastic force to the positioning plate 14, so that the anchor can produce a predetermined pulling force to the bridge, then the rotating block 4 rotates the connecting block 8, so that both ends of the first pull rod 10 and the second pull rod 11 move to the adjustment seat 1 at the same time, and then complete the secondary fine adjustment of the elastic force, finally fill in the concrete, block the groove, expose the reinforcing seat 2 for maintenance and adjustment, when maintaining, only need to adjust the position of the pull rod according to the material of the spiral rib 15, in order to make up the change of the prestress caused by the change of the material.

[0039] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A prestressed anchorage for reinforcing concrete bridges, comprising an adjustment seat (1), characterized in that: A reinforcing seat (2) is fixedly connected to the middle of the upper surface of the adjusting seat (1). A rotating block (4) is rotatably connected to the middle of the upper surface of the reinforcing seat (2). A worm gear (5) is fixedly connected to the lower end of the outer wall of the rotating block (4). Limiting blocks (6) are rotatably connected to the front and rear ends inside the adjusting seat (1). An adjusting gear (7) is fixedly connected to the middle of the outer wall of the limiting block (6). Connecting blocks (8) are fixedly connected to the outer walls on both sides of the limiting block (6). The front ends of the outer walls on both sides of the adjusting seat (1) are fixedly connected to the connecting blocks (8). A first pull rod (10) is provided, and a second pull rod (11) is provided at the rear end of the outer walls on both sides of the adjusting seat (1). The first pull rod (10) and the second pull rod (11) are fixedly connected to the adjustment threaded rod (12) on the side close to the adjusting seat (1), and the first pull rod (10) and the second pull rod (11) are fixedly connected to the locking threaded rod (13) on the side away from the adjusting seat (1). The outer walls of the first pull rod (10) and the second pull rod (11) are respectively fitted with a positioning plate (14) and a spiral rib (15).

2. The prestressed anchorage for reinforcing concrete bridges according to claim 1, characterized in that: The reinforcing base (2) has a reinforcing screw (3) threaded in the middle of one side of its outer wall.

3. The prestressed anchorage for reinforced concrete bridge construction according to claim 1, characterized in that: The worm (5) meshes with the adjusting gear (7).

4. A prestressed anchorage for reinforcing concrete bridges according to claim 1, characterized in that: The connecting block (8) has a threaded groove (9) in the middle of the outer wall on the side away from the limiting block (6).

5. A prestressed anchorage for reinforcing concrete bridges according to claim 1, characterized in that: The second pull rod (11) is threadedly engaged with the connecting block (8) at the rear end via the adjusting threaded rod (12).

6. A prestressed anchorage for reinforcing concrete bridges according to claim 1, characterized in that: The first pull rod (10) is threadedly engaged with the connecting block (8) at the front end via the adjusting threaded rod (12).

7. A prestressed anchorage for reinforcing concrete bridges according to claim 1, characterized in that: The outer wall of the locking threaded rod (13) is threaded with a positioning nut (16) and a reinforcing nut (17).

8. A prestressed anchorage for reinforcing concrete bridges according to claim 1, characterized in that: The positioning plate (14) is fixedly connected to the spiral rib (15).

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