CN213205001U

CN213205001U - Auxiliary device for bridge plate prestressed steel strand tensioning construction

Info

Publication number: CN213205001U
Application number: CN202021871205.4U
Authority: CN
Inventors: 江微; 王成
Original assignee: Road and Bridge International Co Ltd; Road and Bridge South China Engineering Co Ltd
Current assignee: Road and Bridge International Co Ltd; Road and Bridge South China Engineering Co Ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-05-14
Anticipated expiration: 2030-08-31

Abstract

The utility model discloses an auxiliary device is used in bridge slab prestressing force steel strand wires stretch-draw construction, the on-line screen storage device comprises a base and a bottom plate, the shifting chute is seted up to the base upper end, transversely set up threaded rod one in the base, and a threaded rod left end rotates and connects the base inner wall, a threaded rod right-hand member installation motor, a threaded rod surface bilateral symmetry cover is established thread bush one, and thread bush one is located the shifting chute, the base top sets up the bottom plate, the sliding tray is seted up to the bottom plate lower extreme, set up two sliders in the sliding tray, the cross bar is installed to the installation between base and the bottom plate, the bottom plate top longitudinal symmetry sets up ARC fixed plate, ARC fixed plate left and right sides both ends symmetry erection. The utility model discloses a universal wheel is convenient to be removed, and labour saving and time saving through the stopper on the universal wheel, fixes the position of this device, increases the stability of during operation.

Description

Auxiliary device for bridge plate prestressed steel strand tensioning construction

Technical Field

The utility model relates to an auxiliary device specifically is an auxiliary device is used in bridge plate prestressing force steel strand wires stretch-draw construction.

Background

Prestressing force stretch-draw adds the pulling force in the component in advance for it bears compressive stress to be exerted prestressing force stretch-draw component, and then makes it produce certain deformation, deals with the load that structure itself received, load, wind load, snow load, earthquake load effect etc. including component self weight. Generally, the steel strand, the jack, the anchor plate and the clamping piece are used for tensioning. Before the engineering structural member bears external load, pretension stress is applied to the steel strands in the tension module, the bending resistance and rigidity of the member are improved, the occurrence time of cracks is delayed, and the durability of the member is improved. In the mechanical structure, the stress is generated in advance, and the advantages of the mechanical structure are that the rigidity of the structure can be improved, the vibration and the elastic deformation are reduced, the elastic strength of the tension module can be obviously improved, and the original resistance is stronger. The prestressed tensioning jack needs to be used for completing work in the prestressed tensioning process, the existing tensioning jack is heavy in weight, multiple workers need to carry the prestressed tensioning jack together, time and labor are wasted, and the workers are easily injured if the situation of sliding hands occurs. Therefore, the utility model provides an auxiliary device is used in bridge plate prestressing force steel strand stretching construction to solve the problem that proposes in the above-mentioned background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an auxiliary device is used in bridge plate prestressing force steel strand stretching construction to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an auxiliary device for tensioning construction of prestressed steel strands of bridge plates comprises a base and a bottom plate, wherein a moving groove is formed in the upper end of the base, a first threaded rod is transversely arranged in the base, the left end of the first threaded rod is rotatably connected with the inner wall of the base, a motor is installed at the right end of the first threaded rod, a first threaded sleeve is symmetrically sleeved on the outer surface of the first threaded rod in a left-right mode, the first threaded sleeve is positioned in the moving groove, the bottom plate is arranged above the base, a sliding groove is formed in the lower end of the bottom plate, two sliding blocks are arranged in the sliding groove, a cross rod is installed between the base and the bottom plate, arc-shaped fixed plates are symmetrically arranged in the front-back mode above the bottom plate, the cross sections of the arc-shaped fixed plates are inverted L-shaped, connecting plates are symmetrically installed at the, a second longitudinal threaded rod is arranged in the bottom plate, the rear end of the second threaded rod is rotatably connected with the inner wall of the bottom plate, a second threaded sleeve is symmetrically sleeved in the front and back of the outer surface of the threaded rod, L-shaped rods are symmetrically installed at the left end and the right end of the second threaded sleeve, the L-shaped rods are fixedly connected with the lower end of the fixed frame, and a tensioning jack is arranged above the bottom plate.

As a further scheme of the utility model, four universal wheels of base lower extreme bilateral symmetry installation, and set up the stopper on the universal wheel.

As a further proposal of the utility model, the sliding groove is transversal and is shaped like a T, and the sliding block is transversal and is shaped like a T.

As the utility model discloses scheme further again, two front ends of threaded rod installation T shape turning blocks, and T shape turning block is located bottom plate the place ahead.

As the utility model discloses further scheme again, stretch-draw jack below sets up the rubber pad, and rubber pad fixed connection bottom plate.

As a further proposal, the connecting slide block is rotated on the upper end of the cross rod, and the connecting thread sleeve is rotated on the lower end of the cross rod.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a universal wheel is convenient to be removed, and is labour saving and time saving, through the stopper on the universal wheel, fixes the position of this device, increases the stability of during operation, makes ARC fixed plate remove both sides around the stretch-draw jack through rotating T shape turning block, then rotates the bolt, makes ARC fixed plate block the position of stretch-draw jack, can fix the stretch-draw jack of different specifications, convenient and fast, strong adaptability.

Drawings

Fig. 1 is a schematic structural diagram of an auxiliary device for bridge plate prestressed steel strand tensioning construction.

Fig. 2 is a schematic structural diagram of a bottom plate in an auxiliary device for bridge plate prestressed steel strand tensioning construction.

Fig. 3 is a schematic structural diagram of a base in an auxiliary device for bridge plate prestressed steel strand tensioning construction.

In the figure: 1. a base; 11. a moving groove; 12. a universal wheel; 2. a motor; 21. a first threaded rod; 22. sleeving a first thread; 3. a cross bar; 4. a base plate; 41. a sliding groove; 42. a slider; 5. a second threaded rod; 51. a T-shaped turning block; 52. a second thread sleeve; 53. an L-shaped rod; 6. a fixing frame; 7. an arc-shaped fixing plate; 71. a connecting plate; 72. a bolt; 8. tensioning a jack; 9. and (7) a rubber pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, in the embodiment of the present invention, an auxiliary device for tension construction of prestressed steel strands of a bridge plate comprises a base 1 and a bottom plate 4, four universal wheels 12 are symmetrically installed at the lower end of the base 1 in the left-right direction, a brake is installed on the universal wheels 12, a moving groove 11 is installed at the upper end of the base 1, a first threaded rod 21 is transversely installed in the base 1, the left end of the first threaded rod 21 is rotatably connected to the inner wall of the base 1, a motor 2 is installed at the right end of the first threaded rod 21, a first threaded sleeve 22 is symmetrically sleeved on the outer surface of the first threaded rod 21, the first threaded sleeve 22 is located in the moving groove 11, the bottom plate 4 is installed above the base 1, a sliding groove 41 is installed at the lower end of the bottom plate 4, two sliding blocks 42 are installed in the sliding groove 41, the cross section of the sliding groove 41 is T-shaped, the cross, the lower end of the cross rod 3 is rotatably connected with a first threaded sleeve 22, arc-shaped fixed plates 7 are symmetrically arranged in the front and back direction above the bottom plate 4, the cross section of each arc-shaped fixed plate 7 is in an inverted L shape, connecting plates 71 are symmetrically arranged at the left end and the right end of each arc-shaped fixed plate 7, bolts 72 are arranged at the lower end of each connecting plate 71, the bolts 72 are rotatably connected with the connecting plates 71, a fixed frame 6 is sleeved on the outer surface of each bolt 72, the fixed frame 6 is in threaded connection with the corresponding bolt 72, the lower end of the fixed frame 6 is slidably connected with the bottom plate 4, a second longitudinal threaded rod 5 is arranged in the bottom plate 4, the rear end of each threaded rod 5 is rotatably connected with the inner wall of the bottom plate 4, a T-shaped rotating block 51 is arranged at the front end of each threaded rod 5, a second threaded sleeve 52 is symmetrically sleeved on the front and back of the outer, a rubber pad 9 is arranged below the tensioning jack 8, and the rubber pad 9 is fixedly connected with the bottom plate 4.

The utility model discloses a theory of operation is: the device is convenient to move through the universal wheel 12, the position of the device is fixed through a brake on the universal wheel 12, the stability in work is improved, the tensioning jack 8 is placed on the rubber pad 9, the T-shaped rotating block 51 is rotated to drive the threaded rod II 5 to rotate, the threaded rod II 5 drives the two threaded sleeves II 52 to move towards the middle, the threaded sleeves II 52 drive the arc-shaped fixing plates 7 to move to the front side and the rear side of the tensioning jack 8 through the L-shaped rods 53, the fixing frame 6, the bolts 72 and the connecting plate 71, then the bolts 72 are rotated, as the bolts 72 are in threaded connection with the fixing frame 6, the bolts 72 drive the arc-shaped fixing plates 7 to move downwards and clamp the front side and the rear side of the tensioning jack 8, so as to fix the position of the tensioning jack 8, the motor 2 drives the threaded rod I21 to rotate, the threaded rod I21 drives the two threaded sleeves I22 to move, thereby adjusting the position of the tensioning jack 8.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an auxiliary device for bridge plate prestressing force steel strand stretching construction, including base (1) and bottom plate (4), a serial communication port, shifting chute (11) is seted up to base (1) upper end, transversely set up threaded rod (21) in base (1), and threaded rod (21) left end rotates and connects base (1) inner wall, threaded rod (21) right-hand member installation motor (2), threaded rod (21) surface bilateral symmetry cover is established thread bush (22), and thread bush (22) are located shifting chute (11), base (1) top sets up bottom plate (4), sliding tray (41) are seted up to bottom plate (4) lower extreme, set up two slider (42) in sliding tray (41), installation crossbar (3) between base (1) and bottom plate (4), bottom plate (4) top front and back symmetry sets up arc fixed plate (7), and arc fixed plate (7) transversal personally submit inverted L shape, connecting plate (71) is installed to both ends symmetry about arc fixed plate (7), connecting plate (71) lower extreme construction bolt (72), and bolt (72) and connecting plate (71) rotate to be connected, fixed frame (6) is established to bolt (72) surface cover, and fixed frame (6) and bolt (72) threaded connection, fixed frame (6) lower extreme and bottom plate (4) sliding connection, longitudinal threaded rod two (5) in bottom plate (4), threaded rod two (5) rear end rotates and connects bottom plate (4) inner wall, threaded sleeve two (52) are established to threaded rod two (5) surface front and back symmetry cover, L shape pole (53) are installed to both ends symmetry about threaded sleeve two (52), and L shape pole (53) fixed connection fixed frame (6) lower extreme, bottom plate (4) top sets up stretch-draw jack (8).

2. The auxiliary device for bridge plate prestressed steel strand tensioning construction according to claim 1, wherein four universal wheels (12) are symmetrically installed at the lower end of the base (1) from left to right, and brakes are arranged on the universal wheels (12).

3. The auxiliary device for bridge plate prestressed steel strand tensioning construction according to claim 1, wherein the cross section of the sliding groove (41) is T-shaped, and the cross section of the sliding block (42) is T-shaped.

4. The auxiliary device for bridge plate prestressed steel strand tensioning construction according to claim 1, wherein a T-shaped rotating block (51) is installed at the front end of the second threaded rod (5), and the T-shaped rotating block (51) is located in front of the bottom plate (4).

5. The auxiliary device for bridge plate prestressed steel strand tensioning construction according to claim 1, wherein a rubber pad (9) is arranged below the tensioning jack (8), and the rubber pad (9) is fixedly connected with the bottom plate (4).

6. The auxiliary device for bridge plate prestressed steel strand tensioning construction is characterized in that the upper end of the cross rod (3) is rotatably connected with the sliding block (42), and the lower end of the cross rod (3) is rotatably connected with the first threaded sleeve (22).