Prestress construction tensioning equipment

Abstract

The utility model discloses prestress construction tensioning equipment, and relates to the technical field of tensioning equipment, the prestress construction tensioning equipment comprises an anchor plate and a center hole jack, the front end of the anchor plate is movably provided with an anchor clamping piece, the rear end of the anchor plate is movably connected with a limiting plate, the surface of the center hole jack is fixedly connected with a driving device through an oil pipe, and the driving device is fixedly connected with the center hole jack. A positioning structure is arranged between the center hole jack and the limiting plate; the positioning structure comprises a connecting plate, the connecting plate is connected with the front end of the center hole jack through the connecting structure, through the positioning structure, rapid alignment of the center hole jack and the center axis of the anchor plate is achieved, the time for waiting for alignment can be effectively saved, and then the construction efficiency effect is improved; the problems that in traditional prestress construction tensioning equipment, the correction mode of the center axis of a center hole jack and the center axis of an anchor plate is troublesome, the center hole jack needs to be in a static state in the air after correction, and consumed time is long are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tensioning equipment, in particular to a prestressed construction tensioning equipment. Background Art

[0002] Most of the existing prestressing tensioning is carried out by through-type jacks. Through-type jacks are mainly used in conjunction with prestressed anchors, limit plates and tensioning equipment in bridge and other engineering construction. During the tensioning process of the prestressed steel strands of the bridge, the through-type jack needs to coincide with the central axis of the anchor plate to ensure that the force is evenly applied during the tensioning process of the steel strands.

[0003] However, the existing prestressed tensioning equipment is usually constructed by hoisting in the air. When adjusting the height of the through-type jack, it is troublesome to align the through-type jack with the central axis of the anchor plate, and after the alignment, it is necessary to wait for the through-type jack to be stationary in the air, which is time-consuming. Utility Model Content

[0004] The main purpose of the utility model is to provide a prestressed construction tensioning device, which can effectively solve the technical problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A prestressed construction tensioning device, comprising an anchor plate and a through-type jack, wherein an anchor clip is movably mounted at the front end of the anchor plate. A limit plate is movably connected to the rear end of the anchor plate, a driving device is fixedly connected to the surface of the through-type jack via an oil pipe, and a positioning structure is arranged between the through-type jack and the limit plate;

[0007] The positioning structure includes a connecting plate, which is connected to the front end of the through-type jack via a connecting structure, the front end surface of the connecting plate is rotatably connected to a rotating ring, the front end surface of the connecting plate is located on the periphery of the rotating ring and has three fixed seats fixedly installed, a positioning rod is rotatably installed on the surface of the fixed seat, a positioning wheel is rotatably installed on the front end of the positioning rod, an adjusting seat is fixedly connected to the surface of the connecting plate near the top side, an adjusting screw is rotatably installed through the adjusting seat, and the surface of the adjusting screw is threadedly connected to the connecting seat.

[0008] As a further solution of the utility model, the anchor plate is provided with a plurality of openings, and the openings of the anchor plate are adaptively matched with the number of the steel strand anchor clips.

[0009] As a further solution of the utility model, three openings are provided on the surface of the rotating ring, and the inner opening of the rotating ring is rotatably connected to the positioning rod.

[0010] As a further solution of the utility model, the connecting seat is rotatably connected to the rotating ring, and the contact surface between the adjusting screw and the adjusting seat is in a "T"-shaped structure.

[0011] As a further solution of the utility model, the connecting structure includes an installation groove, which is opened at the rear end of the connecting plate, a connecting screw is rotatably installed on one side of the installation groove, a movable column is fixedly installed on the other side of the installation groove, a fastening seat is movably installed in the installation groove through the connecting screw and the movable column, and the top end of the connecting screw passes through the top surface of the connecting plate and is fixedly connected to a hand wheel.

[0012] As a further solution of the utility model, the surface of the connecting screw is provided with two sections of external threads, and the directions of the two sections of external threads are opposite, and the fastening seat and the connecting screw are adaptively matched.

[0013] As a further solution of the utility model, the fastening seat is an arc structure, and a plurality of grooves are provided on the surface of the hand wheel.

[0014] The beneficial effects of the utility model are as follows:

[0015] By setting the positioning structure, after the limit plate is clamped, the central axis of the through-type jack and the anchor plate can be quickly coincided, which saves the time of waiting for the central axis of the through-type jack and the anchor plate to coincide, thereby improving the construction efficiency;

[0016] By setting the connection structure, the positioning structure can be adapted to different through-type jacks, and the positioning structure can be quickly connected and disassembled with the through-type jack, so as to adapt to different situations and effectively improve the applicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a prestressed construction tensioning device of the utility model;

[0018] Figure 2 This is an overall schematic diagram of the positioning structure of a prestressed construction tensioning device of the utility model;

[0019] Figure 3 This is a schematic diagram of the disassembly of the positioning structure part of a prestressed construction tensioning device of the utility model;

[0020] Figure 4 The utility model is a schematic diagram of the overall connection structure of a prestressed construction tensioning device.

[0021] In the figure: 1. steel strand; 2. anchor plate; 3. anchor clip; 4. limit plate; 5. through-type jack; 6. oil pipe; 7. drive device; 8. positioning structure; 9. connecting structure; 801. connecting plate; 802. rotating ring; 803. fixing seat; 804. positioning rod; 805. positioning wheel; 806. connecting seat; 807. adjusting screw; 808. adjusting seat; 901. mounting groove; 902. fastening seat; 903. connecting screw; 904. hand wheel; 905. movable column. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1-4 As shown, a prestressed construction tensioning device comprises an anchor plate 2 and a through-type jack 5, wherein an anchor clip 3 is movably mounted at the front end of the anchor plate 2. A limit plate 4 is movably connected to the rear end of the anchor plate 2, a driving device 7 is fixedly connected to the surface of the through-type jack 5 through an oil pipe 6, and a positioning structure 8 is arranged between the through-type jack 5 and the limit plate 4;

[0024] The positioning structure 8 includes a connecting plate 801, which is connected to the front end of the through-type jack 5 through a connecting structure 9. The front end surface of the connecting plate 801 is rotatably connected to a rotating ring 802. The front end surface of the connecting plate 801 is located on the periphery of the rotating ring 802 and has three fixed seats 803. A positioning rod 804 is rotatably installed on the surface of the fixed seat 803. A positioning wheel 805 is rotatably installed on the front end of the positioning rod 804. An adjusting seat 808 is fixedly connected to the surface of the connecting plate 801 near the top side. An adjusting screw 807 is rotatably installed through the adjusting seat 808. The surface of the adjusting screw 807 is threadedly connected to a connecting seat 806.

[0025] In this embodiment, the anchor plate 2 is provided with a plurality of openings, and the openings of the anchor plate 2 are adaptively matched with the number of anchor clips 3 of the steel strand 1 .

[0026] The anchor plate 2 and the anchor clip 3 can fasten the steel strand 1 so that the steel strand 1 can only be tensioned along a fixed direction, thereby facilitating the tensioning of the steel strand 1 during prestressed construction.

[0027] In this embodiment, three openings are formed on the surface of the rotating ring 802 , and the inner opening of the rotating ring 802 is rotatably connected to the positioning rod 804 .

[0028] The opening of the rotating ring 802 facilitates the rotation of the positioning rod 804 . When the rotating ring 802 rotates, due to the rotation connection with the positioning rod 804 , the positioning rod 804 can be driven to rotate, thereby pressing against the limiting plate 4 .

[0029] In this embodiment, the connecting seat 806 is rotatably connected to the rotating ring 802, and the contact surface between the adjusting screw 807 and the adjusting seat 808 is in a "T" shape.

[0030] The connection between the connecting seat 806 and the rotating ring 802 is rotatably connected, so that when the connecting seat 806 moves, the rotating ring 802 can be driven to rotate. The "T"-shaped structure plays a limiting role, so that the adjusting screw 807 will not separate from the adjusting seat 808.

[0031] In this embodiment, the connecting structure 9 includes an installation groove 901, which is opened at the rear end of the connecting plate 801. A connecting screw 903 is rotatably installed on one side of the installation groove 901, and a movable column 905 is fixedly installed on the other side of the installation groove 901. A fastening seat 902 is movably installed in the installation groove 901 through the connecting screw 903 and the movable column 905. The top end of the connecting screw 903 passes through the top surface of the connecting plate 801 and is fixedly connected to a hand wheel 904.

[0032] The connection structure 9 allows the connection plate 801 to be adapted to different through-type jacks 5, and can be quickly installed and removed from the through-type jacks 5, thereby being applicable to different situations and effectively improving the applicability of the equipment.

[0033] In this embodiment, two sections of external threads are formed on the surface of the connecting screw 903 , and the directions of the two sections of external threads are opposite, so that the fastening seat 902 and the connecting screw 903 are adaptively matched.

[0034] The adaptive matching between the connecting screw 903 and the fastening seat 902 allows the rotation of the connecting screw 903 to drive the fastening seat 902 to move. Since the external threads on the surface of the connecting screw 903 are in opposite directions, the fastening seat 902 can move in opposite directions and automatically align with the center position of the through-type jack 5.

[0035] In this embodiment, the fastening seat 902 is an arc structure, and a plurality of grooves are formed on the surface of the hand wheel 904 .

[0036] The arc structure facilitates the fastening seat 902 to contact with the through-type jack 5, thereby fastening the through-type jack 5. The grooves provided on the surface of the hand wheel 904 facilitate the staff to better apply force to the hand wheel 904.

[0037] It should be noted that the utility model is a prestressed construction tensioning device. When in use, the installation groove 901 is aligned with the front end of the through-type jack 5, and the connecting screw 903 is driven to rotate by rotating the hand wheel 904, thereby driving the two fastening seats 902 to align with the center along the movable column 905, thereby fastening the through-type jack 5, so that the connecting plate 801 is fixed to the front end of the through-type jack 5;

[0038] After the steel strand 1 is fixed by the anchor plate 2 and the anchor clip 3, the anchor plate 2 and the anchor clip 3 are limited by the limit plate 4. The steel strand 1 then passes through the through-type jack 5 and rotates the adjusting screw 807 to drive the connecting seat 806 to move toward the adjusting seat 808, thereby driving the rotating ring 802 to rotate clockwise, so that the positioning rod 804 rotates along the fixed seat 803 and the rotating ring 802, so that the positioning rods 804 are close to the center, and then the positioning wheel 805 is in close contact with the limit plate 4, which plays a role in rapid positioning. The anchor plate 2 and the anchor clip 3 are fixed by the steel strand 1 at the rear end of the through-type jack 5, so that the through-type jack 5 is driven to work through the driving device 7 and the oil pipe 6 to tension the steel strand 1.

[0039] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A prestressed construction tensioning device, comprising an anchor plate (2) and a through-type jack (5), wherein the front end of the anchor plate (2) is movably mounted with an anchor clip (3), the rear end of the anchor plate (2) is movably connected with a limit plate (4), and the surface of the through-type jack (5) is fixedly connected with a driving device (7) via an oil pipe (6), characterized in that: A positioning structure (8) is provided between the through-type jack (5) and the limiting plate (4); The positioning structure (8) comprises a connecting plate (801), wherein the connecting plate (801) is connected to the front end of the through-type jack (5) via a connecting structure (9); the front end surface of the connecting plate (801) is rotatably connected to a rotating ring (802); the front end surface of the connecting plate (801) is located on the periphery of the rotating ring (802) and has three fixed seats (803) fixedly installed; a positioning rod (804) is rotatably installed on the surface of the fixed seat (803); a positioning wheel (805) is rotatably installed on the front end of the positioning rod (804); an adjusting seat (808) is fixedly connected to the surface of the connecting plate (801) at a position close to the top end; an adjusting screw (807) is rotatably installed through the adjusting seat (808); the surface of the adjusting screw (807) is threadedly connected to the connecting seat (806).

2. The prestressed construction tensioning equipment according to claim 1, characterized in that: The anchor plate (2) is provided with a plurality of openings, and the openings of the anchor plate (2) are adaptively matched with the number of anchor clips (3) of the steel strand (1).

3. The prestressed construction tensioning equipment according to claim 1, characterized in that: The surface of the rotating ring (802) is provided with three openings, and the inner opening of the rotating ring (802) is rotatably connected to the positioning rod (804).

4. The prestressed construction tensioning equipment according to claim 1, characterized in that: The connecting seat (806) is rotationally connected to the rotating ring (802), and the contact surface between the adjusting screw (807) and the adjusting seat (808) is in a "T"-shaped structure.

5. The prestressed construction tensioning equipment according to claim 1, characterized in that: The connection structure (9) comprises a mounting groove (901), wherein the mounting groove (901) is provided at the rear end of the connection plate (801), a connecting screw (903) is rotatably mounted on one side of the mounting groove (901), a movable column (905) is fixedly mounted on the other side of the mounting groove (901), a fastening seat (902) is movably mounted in the mounting groove (901) via the connecting screw (903) and the movable column (905), and the top end of the connecting screw (903) passes through the top end surface of the connection plate (801) and is fixedly connected to a hand wheel (904).

6. The prestressed construction tensioning equipment according to claim 5, characterized in that: The surface of the connecting screw (903) is provided with two sections of external threads, and the directions of the two sections of external threads are opposite, and the fastening seat (902) and the connecting screw (903) are adaptively matched.

7. The prestressed construction tensioning equipment according to claim 5, characterized in that: The fastening seat (902) is an arc structure, and a plurality of grooves are formed on the surface of the hand wheel (904).

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