Movable protective shed for prestress tension

Abstract

The movable protective shed comprises a vertical protective shed support and a jack, transverse channel steel is transversely arranged in the center of the top of the vertical protective shed, two-way idler wheels are installed on the transverse channel steel, chain blocks are arranged below the two-way idler wheels, and the two-way idler wheels are connected with the jack. The chain block is connected with the jack, at least one lifting hook is arranged at the top of the transverse channel steel, universal wheels are arranged at four corners of the bottom of the vertical protective shed support, a height-adjustable supporting leg is arranged on one side of each universal wheel, and a protective side plate is arranged on one side face, perpendicular to the transverse channel steel, of the vertical protective shed support. The protective shed can be stabilized in place through hoisting of the bottom universal wheels or the top lifting hooks, meanwhile, the bottom supporting legs are arranged, supporting is conducted after positioning, and the stability of installation of the protective shed is improved; due to the sunshade, direct sunlight in high-temperature weather can be reduced, labor consumption of workers is reduced, and labor efficiency is improved at the same time.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction auxiliary devices, in particular to a movable protective shed used for prestressed tensioning. Background Art

[0002] In bridge construction, prefabricated prestressed beams and slabs inevitably require tensioning. For beams and slabs constructed using the post-tensioning method (prefabricating structural components first, and then prestressing), the setting of an operating platform is particularly important. Conventional methods often use tensioning equipment directly fixed on the T-beam to achieve tensioning. However, prestressed tendons can easily break during the tensioning process due to various non-standard construction. The broken steel strands are extremely powerful and can easily penetrate a person's body, posing a great safety hazard to construction workers. In order to solve this technical problem, a simple protective shed will be provided on site, but this type of protective shed is difficult to move and difficult to fix in the construction position after moving. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a movable protective shed for prestressed tensioning, which is easy to move and adjust the position and has high stability.

[0004] The technical solution adopted by the utility model to solve its technical problems is: to provide a movable protective shed for prestressed tensioning, including a vertical protective shed bracket and a jack, a transversely arranged transverse channel steel is provided in the top center of the vertical protective shed, a two-way roller is installed on the transverse channel steel, a hand chain hoist is provided below the two-way roller, the hand chain hoist is connected to the jack, at least one hook is provided on the top of the transverse channel steel, universal wheels are provided at the four corners of the bottom of the vertical protective shed bracket, a support foot with adjustable height is provided on one side of the universal wheel, and a protective side plate is provided on a side of the vertical protective shed bracket perpendicular to the transverse channel steel.

[0005] Preferably, a horizontally arranged supporting base plate is provided at the bottom of the vertical protective shed support.

[0006] Preferably, a cubic operating space is formed inside the vertical protective shed support, and a sunshade that can cover the cubic operating space is provided on the top of the vertical protective shed support.

[0007] Preferably, the vertical protective shed support includes four vertical support frames, and the vertical support frames are connected by two X-axis support frames at the bottom and two Y-axis support frames at the top. A channel steel supporting U-shaped frame is provided on the top of the Y-axis support frame, and the transverse channel steel is provided between the channel steel supporting U-shaped frames.

[0008] Beneficial Effects

[0009] Compared with the existing solutions, this utility model patent has the following advantages:

[0010] 1) The protective shed can be stably positioned by hoisting with universal wheels at the bottom or hooks at the top. At the same time, bottom support feet are provided to provide support after positioning, thereby improving the stability of the installation of the protective shed.

[0011] 2) The protective shed is equipped with a sunshade, which can reduce direct sunlight in hot weather, reduce labor consumption, and improve labor efficiency.

[0012] 3) The overall structure and material are relatively light, which is convenient for transportation. At the same time, the manual operation of the protective shed is relatively simple. If it is not necessary, it does not need to be hoisted by large equipment, which can reduce the use of hoisting. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of a movable protective shed used for prestressing.

[0014] Figure 2 for Figure 1 Schematic diagram of the neutral protective shed support.

[0015] Figure 3 for Figure 2 Enlarged schematic diagram of the middle transverse channel steel and bidirectional rollers.

[0016] Among them, 1-hook; 2-horizontal channel steel; 3-channel steel supporting U-frame; 4-connecting piece; 5-hand chain hoist; 6-jack; 7-vertical supporting frame; 8-universal wheel; 9-support foot; 10-protective side panel; 11-awning; 12-bidirectional roller; 13-support bottom plate.

[0017] The same reference numerals in the various drawings represent the same components. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

[0019] The utility model provides a movable protective shed for prestressed tensioning, including a vertical protective shed bracket and a jack 6, a horizontally arranged transverse channel steel 2 is provided in the center of the top of the vertical protective shed, a two-way roller 12 is installed on the transverse channel steel 2, a hand chain hoist 5 is provided below the two-way roller 12, the hand chain hoist 5 is connected to the jack 6, at least one hook 1 is provided on the top of the transverse channel steel 2, universal wheels 8 are provided at the four corners of the bottom of the vertical protective shed bracket, a height-adjustable support foot 9 is provided on one side of the universal wheel 8, and a protective side plate 10 is provided on a side of the vertical protective shed bracket perpendicular to the transverse channel steel 2.

[0020] like Figures 1 to 3 As shown, in a specific embodiment, a horizontally arranged supporting base plate 13 is provided at the bottom of the vertical protective shed support, and personnel can stand on the steel plate serving as the supporting base plate 13 to operate.

[0021] A cubic operating space is formed inside the vertical protective shed support, and a sunshade 11 is provided on the top of the vertical protective shed support to cover the cubic operating space. Because the tensioning work cannot be completed in a short time, the sunshade 11 can be installed to reduce direct sunlight and provide shade for operators. The sunshade 11 can be connected to the U-shaped channel steel vertically through a horizontal bar, and then the color steel tile is installed and fixed.

[0022] The vertical protection shed support comprises four vertical support frames 7, which are connected by two X-direction support frames at the bottom and two Y-direction support frames at the top, and a channel steel support U-shaped frame 3 is provided on the top of the Y-direction support frame, and the transverse channel steel 2 is provided between the channel steel support U-shaped frames 3. A plurality of U-shaped steel bars can be welded on the vertical support frame 7 for temporarily placing operating devices such as a ruler, or for temporarily fixing the jack 6 to prevent forward and backward movement.

[0023] A hollow support leg bracket is provided at the bottom of the X-axis support frame, and the support leg 9 is slidably inserted into the support leg bracket. A threaded hole is provided on the side of the support leg bracket, and the support leg 9 is limited by a bolt passing through the threaded hole. The support leg 9 includes a vertical channel steel and a square flat plate welded to the bottom of the vertical channel steel. After the protective shed moves, it is prevented from moving forward and backward or left and right, and plays the role of braking, anti-skid and supporting.

[0024] The outer diameter of the two-way roller 12 matches the distance between the upper and lower flanges of the transverse channel steel 2, so that the two-way roller 12 can slide in the transverse channel steel 2. The upper part of the hand chain hoist 5 is connected to the two-way roller 12 through the connecting piece 4, and the lower hook is connected to the jack 6. The height position of the jack 6 can be adjusted by adjusting the chain of the hand chain hoist 5, and the horizontal position of the jack 6 can also be adjusted through the two-way roller 12 on the transverse channel steel 2.

[0025] All the support frames of the utility model are connected by welding. The vertical support frame body 7 is welded with oblique steel bars on one side parallel to the transverse channel steel 2, which further improves the tensioning effect and improves the stability of the overall elevated frame of the protective shed.

[0026] The utility model transfers or hoists the protective shed device to the prestressing tensioning position by manually pushing the transfer or overhead crane, adjusts the position of the protective shed forward and backward by rollers, then locks the rollers, and lowers the bottom support feet 9 on both sides of the back to increase the support and stability with the ground. Then hoist the jack 6, adjust the hand chain hoist 5 (with chain) to adjust the jack 6 to the tensioning position, the upper part of the hand chain hoist 5 is connected to the transverse support, and the connection method is with a two-way roller 12, which can slide longitudinally on the transverse channel steel 2, and move the jack 6 to the tensioning position by front and back, up and down adjustment, and then install the anchor, tension, anchor sealing and other specific operations. After each prestressed beam is tensioned, adjust the jack 6 back to the middle of the beam, and then temporarily fix it with the vertical support rod, adjust the bottom support feet 9 at the bottom of the protective shed, open the universal roller fixing valve, move the protective shed to the next prestressed beam, and repeat the above content to carry out tensioning and other work. The utility model can improve the working efficiency of the tensioning work, and at the same time has the advantages of being movable and flexible in operation, and is convenient for construction.

Claims

1. A movable protective shed for prestressed tensioning, comprising a vertical protective shed support and a jack (6), characterized in that: A transversely arranged transverse channel steel (2) is provided at the center of the top of the vertical protective shed, a bidirectional roller (12) is installed on the transverse channel steel (2), a hand chain hoist (5) is provided below the bidirectional roller (12), the hand chain hoist (5) is connected to the jack (6), at least one hook (1) is provided on the top of the transverse channel steel (2), universal wheels (8) are provided at the four corners of the bottom of the vertical protective shed bracket, a height-adjustable support foot (9) is provided on one side of the universal wheel (8), and a protective side plate (10) is provided on one side of the vertical protective shed bracket perpendicular to the transverse channel steel (2).

2. A movable protective shed for prestressing according to claim 1, characterized in that: A horizontally arranged supporting bottom plate (13) is provided at the bottom of the vertical protective shed support.

3. A movable protective shed for prestressing tensioning according to claim 1, characterized in that: A cubic operating space is formed inside the vertical protective shed support, and a sunshade (11) capable of covering the cubic operating space is provided on the top of the vertical protective shed support.

4. A movable protective shed for prestressing tensioning according to claim 1, characterized in that: The vertical protective shed support comprises four vertical support frames (7), the vertical support frames (7) are connected via two X-direction support frames at the bottom and two Y-direction support frames at the top, a channel steel support U-shaped frame (3) is provided at the top of the Y-direction support frame, and the transverse channel steel (2) is provided between the channel steel support U-shaped frames (3).

Images