Precast beam tensioning and protecting device

Abstract

The utility model relates to the technical field of engineering equipment, and discloses a precast beam tensioning and protecting device which comprises a support, movable wheels are arranged at the bottom of the support, a first protecting plate is installed on one side of the support, an installing frame is installed on the top of the support, and horizontally-arranged driving screw rods are movably installed on the inner walls of the two ends of the installing frame. According to the lifting device, the jack is lifted in a suspended mode through the lifting component, the driving screw is driven by the driving motor to rotate, horizontal movement of the movable sleeve is achieved, and therefore the horizontal position of the jack is accurately adjusted, and operation is flexible and efficient. After the position of the jack is adjusted, the positioning mechanism fixes the position of the movable sleeve, it is guaranteed that the movable sleeve cannot move in the installation process, and the installation stability and precision are improved; and meanwhile, the protection plate provides safety protection for the tensioning operation, possible potential safety hazards in the construction process are effectively avoided, and the construction safety and reliability are further improved.

Description

Technical Field

[0001] This utility model relates to the field of engineering equipment technology, and in particular to a precast beam tensioning and protection device. Background Technology

[0002] In the tensioning process of precast beams, jacks, as core equipment, are used to apply prestress to prestressed steel strands or reinforcing bars. The accuracy of their installation and positioning directly affects the construction quality. However, in existing technologies, the installation and positioning adjustment of jacks mostly rely on manual operation, which is not only inefficient but also carries a significant risk of positional deviation, making it difficult to meet the requirements of high-precision construction. Furthermore, during tensioning, the breakage of steel strands or equipment malfunctions can pose safety hazards to construction workers, and existing protective measures are often inadequate, failing to fully guarantee construction safety. Therefore, there is an urgent need for a device that can achieve precise positioning and stable fixation of jacks, as well as safety protection during the construction process, to improve construction efficiency, safety, and quality reliability. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a precast beam tensioning and protection device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A precast beam tensioning and protection device includes a support frame. The support frame has movable wheels at its bottom and a protective plate on one side. A mounting frame is mounted on the top of the support frame. Horizontally mounted drive screws are movably mounted on the inner walls of both ends of the mounting frame. Movable sleeves are fitted around the circumference of the drive screws. A lifting component is mounted on the bottom of the movable sleeve via a connecting rope for lifting and hoisting jacks used for tensioning. A drive motor for driving the drive screws is mounted on the outer wall of one end of the mounting frame. Horizontally mounted guide rods are mounted on the outer walls of both sides of the movable sleeve. The end of the guide rod away from the movable sleeve is slidably connected to the inner wall of the mounting frame. A positioning mechanism is mounted on the end of the guide rod away from the movable sleeve for positioning the movable sleeve and the lifting component after the horizontal position of the lifting component has been adjusted.

[0006] As a further improvement of this utility model: both sides of the inner wall of the mounting frame are provided with horizontally arranged sliding grooves, and the outer diameter of the end of the guide rod away from the movable sleeve is adapted to the inner diameter of the sliding groove.

[0007] As a further embodiment of this utility model: the positioning mechanism includes a mounting base installed on the side of the guide rod, a telescopic component is installed on one side of the mounting base, and an electromagnetic component is installed at one end of the piston rod of the telescopic component.

[0008] As a further improvement of this utility model, the bottom of the mounting frame is provided with a reinforcing support.

[0009] As a further improvement of this utility model: a second protective plate is provided on the side of the bracket near the first protective plate, and a guide groove is provided on the side of the bracket, with the outer diameters of both ends of the second protective plate matching the inner diameter of the guide groove.

[0010] As a further improvement of this utility model: both ends of the second protective plate are provided with mounting wings, and positioning holes are provided on the side of the mounting wings and the side of the bracket, with positioning bolts provided inside the positioning holes.

[0011] The beneficial effects of this utility model are as follows: the lifting component suspends and lifts the jack, and the drive motor drives the drive screw to rotate, thereby realizing the horizontal movement of the movable sleeve, which can accurately adjust the horizontal position of the jack, making the operation flexible and efficient; after the jack position is adjusted, the positioning mechanism fixes the position of the movable sleeve to ensure that the movable sleeve will not be displaced during the installation process, thus improving the stability and accuracy of the installation; at the same time, the protective plate provides safety protection for the tensioning operation, effectively avoiding possible safety hazards during construction, and further improving the safety and reliability of construction. Attached Figure Description

[0012] Figure 1 This is a first-view structural schematic diagram of a precast beam tensioning and protection device proposed in this utility model;

[0013] Figure 2 This is a second-view structural schematic diagram of a precast beam tensioning and protection device proposed in this utility model;

[0014] Figure 3 This is a schematic diagram of the positioning mechanism, drive screw, and lifting component in a precast beam tensioning and protection device proposed in this utility model.

[0015] In the diagram: 1-Bracket, 2-Swivel wheel, 3-Protective plate one, 4-Guide groove, 5-Lifting component, 6-Reinforcing brace, 7-Mounting frame, 8-Drive screw, 9-Slide groove, 10-Drive motor, 11-Connecting rope, 12-Swivel sleeve, 13-Guide rod, 14-Positioning mechanism, 141-Electromagnetic component, 142-Telescopic component, 143-Mounting base, 15-Protective plate two, 16-Positioning hole, 17-Mounting side wing, 18-Positioning bolt. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Reference Figure 1-3 A precast beam tensioning and protection device includes a support 1, with movable wheels 2 at the bottom of the support 1, a protective plate 3 on one side of the support 1, and an installation frame 7 on the top of the support 1. Horizontally mounted drive screws 8 are movably mounted on the inner walls of both ends of the installation frame 7. A movable sleeve 12 is fitted around the circumference of the drive screw 8. A lifting component 5 is installed at the bottom of the movable sleeve 12 via a connecting rope 11 for lifting and hoisting jacks used for tensioning. A drive motor 10 for driving the drive screws 8 is installed on the outer wall of one end of the installation frame 7. Horizontally mounted guide rods 13 are provided on both outer walls of the movable sleeve 12. The end of the guide rod 13 away from the movable sleeve 12 is slidably connected to the inner wall of the installation frame 7. A positioning mechanism 14 is provided on the end of the guide rod 13 away from the movable sleeve 12 for positioning the movable sleeve 12 and the lifting component 5 after the horizontal position of the lifting component 5 has been adjusted.

[0018] In use, the jack is lifted by the lifting component 5. After the jack is suspended, the drive motor 10 drives the drive screw 8 to rotate, which causes the movable sleeve 12 to move horizontally on the drive screw 8, thereby adjusting the horizontal position of the jack. After the jack position is adjusted, the positioning mechanism 14 positions the movable sleeve 12 to ensure that the movable sleeve 12 will not be displaced when the jack is fixedly installed. The protective plate 3 protects the tensioning operation and ensures construction safety.

[0019] In a preferred embodiment of this utility model, horizontally arranged sliding grooves 9 are provided on both inner walls of the mounting frame 7. The outer diameter of the end of the guide rod 13 away from the movable sleeve 12 is matched with the inner diameter of the sliding groove 9. When the movable sleeve 12 moves horizontally, one end of the guide rod 13 slides in the sliding groove 9 to guide the horizontal movement of the movable sleeve 12.

[0020] In a preferred embodiment of the present invention, the positioning mechanism 14 includes a mounting base 143 mounted on the side of the guide rod 13. A telescopic component 142 is mounted on one side of the mounting base 143. An electromagnetic component 141 is mounted on one end of the piston rod of the telescopic component 142. After the movable sleeve 12 has moved, the telescopic component 142 pushes the electromagnetic component 141 to move horizontally until the side of the electromagnetic component 141 abuts against the inner wall of the mounting frame 7. At this time, the power supply of the electromagnetic component 141 is turned on, and the electromagnetic component 141 is magnetically fixed to the side wall of the mounting frame 7.

[0021] In a preferred embodiment of this utility model, the bottom of the mounting frame 7 is provided with a reinforcing support 6.

[0022] In a preferred embodiment of the present invention, a second protective plate 15 is provided on the side of the bracket 1 near the first protective plate 3, and a guide groove 4 is provided on the side of the bracket 1. The outer diameters of both ends of the second protective plate 15 are adapted to the inner diameters of the guide groove 4.

[0023] As a preferred embodiment of this utility model, both ends of the protective plate 2 15 are provided with mounting wings 17. The side of the mounting wings 17 and the side of the bracket 1 are provided with positioning holes 16. Positioning bolts 18 are provided inside the positioning holes 16. The protective plate 2 15 can be lifted and unfolded upward according to construction needs, thereby increasing the protective area and improving safety. After the protective plate 2 15 is lifted to the required height, the positioning bolts 18 are inserted into the aligned positioning holes 16 to install and fix the protective plate 2 15.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A precast beam tensioning and protection device, comprising a support (1), wherein the bottom of the support (1) is provided with movable wheels (2), characterized in that, A protective plate (3) is installed on one side of the bracket (1), and an installation frame (7) is installed on the top of the bracket (1). A horizontally arranged drive screw (8) is movably installed on the inner walls of both ends of the installation frame (7). A movable sleeve (12) is sleeved on the circumference of the drive screw (8). A lifting component (5) is installed at the bottom of the movable sleeve (12) through a connecting rope (11) for lifting the jack used for hoisting and tensioning. One end of the mounting frame (7) is provided with a drive motor (10) for driving the drive screw (8) to rotate. Both sides of the movable sleeve (12) are provided with horizontally arranged guide rods (13). The end of the guide rod (13) away from the movable sleeve (12) is slidably connected to the inner wall of the mounting frame (7). The end of the guide rod (13) away from the movable sleeve (12) is provided with a positioning mechanism (14) for positioning the position of the movable sleeve (12) and the lifting component (5) after the horizontal position of the lifting component (5) is adjusted.

2. The precast beam tensioning and protection device according to claim 1, characterized in that, The inner walls of both sides of the mounting frame (7) are provided with horizontally arranged sliding grooves (9), and the outer diameter of the end of the guide rod (13) away from the movable sleeve (12) is matched with the inner diameter of the sliding groove (9).

3. The precast beam tensioning and protection device according to claim 1, characterized in that, The positioning mechanism (14) includes a mounting base (143) installed on the side of the guide rod (13), a telescopic component (142) is installed on one side of the mounting base (143), and an electromagnetic component (141) is installed at one end of the piston rod of the telescopic component (142).

4. The precast beam tensioning and protection device according to claim 1, characterized in that, The bottom of the mounting frame (7) is provided with a reinforcing brace (6).

5. The precast beam tensioning and protection device according to claim 1, characterized in that, The bracket (1) is provided with a second protective plate (15) on the side near the first protective plate (3). A guide groove (4) is provided on the side of the bracket (1). The outer diameters of the two ends of the second protective plate (15) are matched with the inner diameters of the guide groove (4).

6. The precast beam tensioning and protection device according to claim 5, characterized in that, Both ends of the second protective plate (15) are provided with mounting wings (17), and the side of the mounting wings (17) and the side of the bracket (1) are provided with positioning holes (16), and positioning bolts (18) are provided inside the positioning holes (16).

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