Movable tool rack for assisting T-beam hogging moment prestress tensioning equipment

Abstract

The utility model discloses a tool rack for assisting T-beam hogging moment prestress tensioning equipment, and belongs to the technical field of device movement. The tool rack comprises a support, a sliding piece is installed on the support, a lifting device is connected below the sliding piece, C-shaped steel is installed on the lifting device, and the tensioning equipment is installed on one leg, close to the opening side, of the C-shaped steel. The other leg of the C-shaped steel is installed on the lifting device, and after the C-shaped steel is installed on the lifting device, the C-shaped steel and the tensioning equipment are in a horizontal suspension state. According to the tool rack for assisting the T-beam hogging moment prestress tensioning equipment, the tensioning equipment is installed on the C-shaped steel, the load of the tensioning equipment is increased, the tensioning equipment cannot shake during operation, a fixing device additionally installed on a conventional auxiliary tool rack is replaced, the whole auxiliary tool rack is simpler in structure, the cost is reduced, and the work efficiency is improved. The device is easy to assemble on a construction site and is more practical.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering auxiliary devices, in particular to a tool rack for auxiliary T-beam negative bending moment prestressed tensioning equipment. Background Art

[0002] At present, prestressing technology is widely used in bridge structures such as roads, railways, and municipal projects. As an important part of prefabricated beam construction, post-tensioning prestressing engineering is of paramount importance. The tensioning of prestressed steel strands directly affects the construction quality of prefabricated beams. However, in traditional post-tensioning prestressing engineering, the tensioning process generally involves setting up temporary supports and inserting prestressed tendons by pulling with a fall chain or manually moving or lifting. Due to the heavy weight of the tensioning jacks and tensioning equipment, the operation must be carried out after setting up temporary supports and manually moving the equipment to adjust its position. The entire process is time-consuming and labor-intensive, directly affecting the efficiency of prestressing construction. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a tool rack for auxiliary T-beam negative bending moment prestressed tensioning equipment which has a simple structure and is easy to assemble.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A tool rack for auxiliary T-beam negative bending moment prestressed tensioning equipment includes a bracket, a sliding part is installed on the bracket, a lifting device is connected below the sliding part, a C-shaped steel is installed on the lifting device, a tensioning device is installed on one leg of the C-shaped steel near the opening side, and the other leg of the C-shaped steel is installed on the lifting device. After the C-shaped steel is installed on the lifting device, the C-shaped steel and the tensioning device are in a horizontal suspended state.

[0006] A universal wheel is installed at the bottom of the bracket, and a baffle is installed above the universal wheel.

[0007] The above-mentioned sliding member includes an H-shaped steel and a slider, and the H-shaped steel is the sliding rail of the slider.

[0008] The slider includes a pair of main steel plates, each of which is provided with a sliding ear that is buckled on the H-shaped steel. The main steel plates are welded together using connecting steel bars, and a hanging ring is provided at the bottom of the main steel plates.

[0009] Preferably, a limiting bolt is provided below the sliding ear, and the H-shaped steel is located between the sliding ear and the limiting bolt.

[0010] Specifically, the lifting device is a manual hoist.

[0011] The beneficial effects of the utility model are:

[0012] The tool rack for auxiliary T-beam negative bending moment prestressed tensioning equipment provided by the utility model increases the load-bearing capacity of the tensioning equipment by installing the tensioning equipment on C-shaped steel, ensuring that the tensioning equipment can remain horizontal and will not shake during operation, replacing the additional fixing device installed on the conventional auxiliary tool rack, making the entire auxiliary tool rack structure simpler, easier to assemble on the construction site, and more practical; and universal wheels are installed at the bottom of the tool rack, which can easily move the tool rack, ensuring that the tool rack can assist in tensioning work at different locations where negative bending moment prestressed tensioning is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view of the mobile rack;

[0014] Figure 2 This is a top view of the mobile rack;

[0015] Figure 3 It is the structural diagram of the sliding part;

[0016] In the figure, 1-bracket, 2-H-shaped steel, 3-slider, 31-main steel plate, 32-sliding ear, 33-limiting bolt, 34-connecting steel bar, 35-hanging ring, 4-manual hoist, 5-fixed chain, 6-manual chain, 7-C-shaped steel, 8-fixed handle, 9-tensioning device, 10-universal wheel, 11-baffle. DETAILED DESCRIPTION

[0017] The following will be combined with the embodiments to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0018] See Figure 1-3 , the utility model provides a technical solution:

[0019] A tool rack for auxiliary T-beam negative bending moment prestressed tensioning equipment includes a movable main body bracket 1, the bracket 1 is spliced ​​with steel pipes, an H-shaped steel 2 is fixed on the top of the bracket 1, a slider 3 is installed on the H-shaped steel 2, the H-shaped steel 2 serves as a slide rail, the slider 3 can slide on the H-shaped steel 2, a manual hoist 4 is hung on the slider 3, the fixed chain 5 on the manual hoist 4 is connected to the fixed handle 8 on the C-shaped steel 7, the fixed handle 8 is located in the middle of the C-shaped steel 7, a tensioning device 9 is installed on the other side of the C-shaped steel 7, the tensioning device 9 is located at the open side end of the C-shaped steel 7, after the fixed handle 8 is connected to the fixed chain 5, the manual hoist 4 suspends the C-shaped steel 7 and the tensioning device 9 horizontally; a universal wheel 10 is installed at the bottom of the bracket 1, and a protective baffle 11 is installed above the universal wheel 10.

[0020] In this embodiment, the slider 3 comprises a pair of main steel plates 31, each welded with a sliding lug 32 that snaps onto the H-shaped steel 2. A stop bolt 33 is located below the sliding lug 32, with the H-shaped steel 2 positioned between the sliding lug 32 and the stop bolt 33. The main steel plates 31 are welded together using connecting steel bars 34. A hanging ring 35 is welded to the bottom of the main steel plates 31, and the manual hoist 4 is hung on the hanging ring 35. The slider 3 is entirely welded from steel plates and steel bars, two materials commonly found on construction sites, making them easy to manufacture and more practical.

[0021] In this embodiment, a limiting bolt 33 is provided on the slider 3 to limit the movable space of the H-shaped steel 2 inside the slider 3, so that the sliding of the slider 3 is more stable; at the same time, the setting of the limiting bolt 33 improves the overall stability of the slider 3, and avoids the entire slider 3 from being damaged after the connecting steel bar 34 is damaged.

[0022] In this embodiment, since the weight of the tensioning device 9 used is determined, the position of the fixed handle 8 can be confirmed. When the weight of the tensioning device 9 used changes, a suitable fixed point can be set on the C-shaped steel 7 so that the C-shaped steel 7 and the tensioning device 9 are in a horizontally suspended position.

[0023] Directions:

[0024] After the wet joints are completed on the bridge deck, when tensioning the negative moment steel strands of the wing panels, push bracket 1 to move the mobile frame of the auxiliary T-beam negative moment prestressing equipment to the required tensioning position. Pull manual chain 6 to lower the height of C-shaped steel 7, then slide slider 3 to align tensioning equipment 9 with the required tensioning position. Once the C-shaped steel 7 stops shaking, pull manual chain 6 to fine-tune the position of tensioning equipment 9, and tensioning equipment 9 will begin negative moment tensioning on the T-beam. After tensioning is complete, pull manual chain 6 to raise the height of C-shaped steel 7, and then move bracket 1 away from the required tensioning position.

[0025] In this embodiment, the requirement for the tensioning device 9 to be suspended in the air when the T-beam is tensioned due to negative bending moment is met. By installing the tensioning device 9 on the C-shaped steel 7, the load of the tensioning device 9 is increased, so that the tensioning device 9 remains suspended horizontally during operation and does not shake. The additional fixing device installed on the conventional auxiliary tool rack is replaced, making the entire auxiliary tool rack structure simpler, easier to assemble on the construction site, and more practical; and avoiding directly connecting the manual hoist 4 to the tensioning device 9, so that the weight of the tensioning device 9 is concentrated in one place, resulting in deformation.

[0026] As an embodiment, the sliding member can be replaced by other labor-saving or high-precision instruments, such as a screw rod; the lifting tool can also be replaced by other high-precision and labor-saving instruments, such as an automatic hoist.

[0027] The above description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the concept described herein through the above teachings or techniques or knowledge in the relevant fields. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.

Claims

1. A mobile tool rack for auxiliary T-beam negative moment prestressing tensioning equipment, characterized in that: The invention comprises a bracket (1), a sliding member is installed on the bracket (1), a lifting device is connected below the sliding member, a C-shaped steel (7) is installed on the lifting device, a tensioning device (9) is installed on one leg of the C-shaped steel (7) near the opening side, and the other leg of the C-shaped steel (7) is installed on the lifting device. After the C-shaped steel (7) is installed on the lifting device, the C-shaped steel (7) and the tensioning device (9) are in a horizontal suspended state; the sliding member comprises an H-shaped steel (2) and a sliding block (3), and the H-shaped steel (2) is a slide rail of the slider (3); the slider (3) comprises a pair of main steel plates (31), the main steel plates (31) are provided with slide ears (32), the slide ears (32) are buckled on the H-shaped steel (2), the main steel plates (31) are welded and connected by connecting steel bars (34), and a hanging ring (35) is provided at the bottom of the main steel plates (31); a limiting bolt (33) is provided below the slide ear (32), and the H-shaped steel (2) is located between the slide ear (32) and the limiting bolt (33).

2. The tool holder according to claim 1, characterized in that: A universal wheel (10) is installed at the bottom of the bracket (1), and a baffle (11) is installed above the universal wheel (10).

3. The tool holder according to claim 1, characterized in that: The lifting device is a manual hoist (4).

Images