Positioning device for precast beam installation

Abstract

The utility model discloses a positioning device for precast beam installation, which comprises two support columns, a precast beam main body is arranged on the two support columns, four groups of positioning components are arranged at the bottom of the precast beam main body, each of the four groups of positioning components comprises a Z-shaped frame, two connecting plates, two fulcrum shafts and two rollers, and the Z-shaped frames are arranged on the Z-shaped frames. The two connecting plates are fixed to the Z-shaped frame, the two supporting shafts are rotationally connected with the two connecting plates, the rolling wheels are fixedly arranged on the supporting shafts, grooves are formed in the upper ends of the two supporting columns, and dampers are fixedly arranged in the two grooves. The precast beam main body is arranged on the two supporting columns in a hoisting mode, the multiple rolling wheels make contact with the outer walls of the two sides of the supporting columns correspondingly, then the precast beam main body is positioned, the precast beam main body does not swing when being hoisted downwards, and the bottom ends of the rolling wheels abut against the fixing plates, so that the precast beam main body is fixed. And the precast beam main body is supported in an auxiliary mode through the four sets of positioning assemblies, so that the stability of the precast beam main body is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of positioning devices, and particularly relates to a positioning device for precast beam installation. Background Technique

[0002] A precast beam is a beam precast in a factory and then transported to the construction site for installation and fixation at the designed position. When installing a precast beam, it should be carried out according to the process of measuring and setting out, installing the beam bottom support, hoisting the precast beam, correcting the precast beam, connecting the precast beam, constructing the cast-in-place structure, and removing the precast beam support. During the process of correcting the precast beam, a precast beam installation positioning device is required for operation.

[0003] The existing precast beam installation positioning device has certain disadvantages when in use. The positioning device has a complex structure and requires a large amount of time during the positioning process, which is not conducive to the construction progress of the bridge. After the precast beam is positioned, the precast beam needs to be connected, and there is a risk of the support base collapsing when working above the precast beam. Summary of the Utility Model

[0004] Aiming at the problems that the existing precast beam installation positioning device has certain disadvantages when in use, such as complex structure, time-consuming during positioning, not conducive to the construction progress of the bridge, and the risk of the support base collapsing when working above the precast beam after the precast beam is positioned, the utility model provides a positioning device for precast beam installation.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme: A positioning device for precast beam installation, including support columns. There are two support columns, and a precast beam main body is arranged on the two support columns. Four groups of positioning components are arranged at the bottom of the precast beam main body. Each of the four groups of positioning components includes a Z-shaped frame, a connecting plate, a support shaft and a roller. The Z-shaped frame is fixedly arranged at the bottom of the precast beam main body. There are two connecting plates and two support shafts. The two connecting plates are both fixed to the Z-shaped frame, and the two support shafts are both rotatably connected to the two connecting plates. The roller is fixedly arranged on the support shaft. Grooves are opened at the upper ends of the two support columns, dampers are fixedly arranged in the two grooves, mounting plates are fixedly arranged at the output ends of the two dampers, fixing studs are fixedly arranged on the two mounting plates, and through holes for the fixing studs to penetrate are opened on the precast beam main body.

[0006] Preferably, a plurality of positioning studs are fixedly arranged at the bottom of the precast beam main body, round holes for the positioning studs to penetrate are opened on the Z-shaped frame, and a first nut is threadedly connected to one end of the positioning stud penetrating the round hole.

[0007] Preferably, four rollers are specifically provided. The four rollers are respectively installed on two support shafts, and wear-resistant coatings are provided on the surfaces of the four rollers.

[0008] Preferably, the Z-shaped frame is made of stainless steel material and is an integrally formed structure.

[0009] Preferably, a second nut is threadedly connected to one end of the fixing stud passing through the through hole, and a notch for installing the second nut is provided on the main body of the precast beam.

[0010] Preferably, springs are sleeved outside both of the dampers, and both ends of the springs are respectively fixed to the mounting plate and the bottom of the groove.

[0011] Preferably, fixing plates are fixedly provided on the side walls of both of the support columns, and the fixing plates are used to abut against the rollers.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. The main body of the precast beam is placed on two support columns by means of hoisting, so that the four groups of positioning components are respectively placed on both sides of the two support columns. By making multiple rollers respectively contact the outer walls on both sides of the support columns, the main body of the precast beam is positioned, so that the main body of the precast beam will not swing when being hoisted downward. By making the bottom ends of the rollers abut against the fixing plates, the main body of the precast beam is assisted to be supported by the four groups of positioning components, thereby improving the stability of the main body of the precast beam.

[0014] 2. When the main body of the precast beam is in use, the dampers cooperate with the springs to buffer the vibration received by the main body of the precast beam, protect the main body of the precast beam, and improve the service life of the main body of the precast beam. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0016] Figure 2 is a schematic sectional structural diagram of the whole of the present utility model;

[0017] Figure 3 is a schematic structural diagram of the positioning component of the present utility model;

[0018] Figure 4 is the present utility model Figure 2 is an enlarged schematic structural diagram of part A in the present utility model.

[0019] In the figure: 1, support column; 2, precast beam main body; 3, Z-shaped frame; 4, connecting plate; 5, support shaft; 6, roller; 7, groove; 8, damper; 9, mounting plate; 10, fixing stud; 11, through hole; 12, positioning stud; 13, first nut; 14, second nut; 15, notch; 16, spring; 17, fixing plate. Specific implementation manner

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] Refer to Figures 1-4 , a positioning device for installing a precast beam, including a support column 1. There are two support columns 1. A precast beam main body 2 is arranged on the two support columns 1. Four groups of positioning components are arranged at the bottom of the precast beam main body 2. Each of the four groups of positioning components includes a Z-shaped frame 3, a connecting plate 4, a support shaft 5 and a roller 6. The Z-shaped frame 3 is fixedly arranged at the bottom of the precast beam main body 2. There are two connecting plates 4 and two support shafts 5. The two connecting plates 4 are both fixed to the Z-shaped frame 3. The two support shafts 5 are rotatably connected to the two connecting plates 4. The roller 6 is fixedly arranged on the support shaft 5. First, the two support columns 1 are fixedly installed, and then the precast beam main body 2 is placed on the two support columns 1 by hoisting, so that the four groups of positioning components are respectively arranged on both sides of the two support columns 1. By making the multiple rollers 6 contact the outer walls on both sides of the support column 1 respectively, the precast beam main body 2 is positioned, so that the precast beam main body 2 will not swing when being hoisted downward.

[0022] Among them, the Z-shaped frame 3 is made of stainless steel material and is an integrally formed structure. The integrally formed structural components have high stability and large structural strength. There are specifically four rollers 6. The four rollers 6 are respectively installed on the two support shafts 5, and wear-resistant coatings are provided on the surfaces of the four rollers 6. By providing the wear-resistant coatings, the anti-friction performance of the surfaces of the four rollers 6 is improved.

[0023] Furthermore, a plurality of positioning studs 12 are fixedly arranged at the bottom of the precast beam main body 2. Round holes for the positioning studs 12 to penetrate are opened on the Z-shaped frame 3. A first nut 13 is threadedly connected to one end of the positioning stud 12 passing through the round hole. By providing the positioning studs 12 and the first nuts 13, it is convenient to install and disassemble the Z-shaped frame 3, and thus it can be reused.

[0024] In addition, fixing plates 17 are fixedly arranged on the side walls of the two support columns 1. The fixing plates 17 are used to abut against the rollers 6. By making the bottom ends of the rollers 6 abut against the fixing plates 17, the precast beam main body 2 is supported by the four groups of positioning components, thereby improving the stability of the precast beam main body 2.

[0025] Furthermore, grooves 7 are formed at the upper ends of both support columns 1. Dampers 8 are fixedly arranged in both grooves 7. Mounting plates 9 are fixedly arranged at the output ends of both dampers 8. Fixed studs 10 are fixedly arranged on both mounting plates 9. Through holes 11 for the fixed studs 10 to penetrate are formed in the precast beam main body 2. A second nut 14 is threadedly connected to one end of the fixed stud 10 penetrating through the through hole 11. A notch 15 for mounting the second nut 14 is formed in the precast beam main body 2.

[0026] In addition, springs 16 are sleeved outside both dampers 8. Both ends of the springs 16 are respectively fixed to the mounting plate 9 and the bottom of the groove 7.

[0027] The operation principle of the present utility model is described as follows: First, the two support columns 1 are fixedly installed, and then the precast beam main body 2 is placed on the two support columns 1 by hoisting, so that the four groups of positioning components are respectively arranged on both sides of the two support columns 1. By making the multiple rollers 6 contact the outer walls on both sides of the support columns 1 respectively, the precast beam main body 2 is positioned, so that the precast beam main body 2 will not swing when being hoisted downward. By making the bottom ends of the rollers 6 abut against the fixing plate 17, the precast beam main body 2 is supported by the four groups of positioning components, thereby improving the stability of the precast beam main body 2. At the same time, the fixed stud 10 is made to penetrate through the through hole 11, and then the second nut 14 is installed on the fixed stud 10 for fixation. When the precast beam main body 2 is in use, the dampers 8 cooperate with the springs 16 to buffer the vibration received by the precast beam main body 2, protect the precast beam main body 2, and improve the service life of the precast beam main body 2.

[0028] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent replacements or changes, and all should be covered by the protection scope of the present utility model.

Claims

1. A positioning device for precast beam installation, comprising a support column (1), characterized in that, There are two support columns (1), and a precast beam main body (2) is arranged on the two support columns (1). Four groups of positioning components are arranged at the bottom of the precast beam main body (2). Each of the four groups of positioning components includes a Z-shaped frame (3), a connecting plate (4), a support shaft (5) and a roller (6). The Z-shaped frame (3) is fixedly arranged at the bottom of the precast beam main body (2). There are two connecting plates (4) and two support shafts (5). The two connecting plates (4) are both fixed to the Z-shaped frame (3), and the two support shafts (5) are rotatably connected to the two connecting plates (4). The roller (6) is fixedly arranged on the support shaft (5). Grooves (7) are opened at the upper ends of the two support columns (1), and dampers (8) are fixedly arranged in the two grooves (7). The output ends of the two dampers (8) are both fixedly provided with mounting plates (9), and fixing studs (10) are fixedly arranged on the two mounting plates (9). A through hole (11) for the fixing stud (10) to penetrate is opened on the precast beam main body (2).

2. The positioning device for precast beam installation according to claim 1, characterized in that, A plurality of positioning studs (12) are fixedly arranged at the bottom of the precast beam main body (2). Circular holes for the positioning studs (12) to penetrate are opened on the Z-shaped frame (3), and a first nut (13) is threadedly connected to one end of the positioning stud (12) penetrating through the circular hole.

3. A positioning device for precast beam installation according to claim 1, characterized in that, Specifically, there are four rollers (6). The four rollers (6) are respectively installed on the two support shafts (5), and wear-resistant coatings are arranged on the surfaces of the four rollers (6).

4. A positioning device for precast beam installation according to claim 1, characterized in that, The Z-shaped frame (3) is made of stainless steel material and is an integrally formed structure.

5. A positioning device for precast beam installation according to claim 1, characterized in that, A second nut (14) is threadedly connected to one end of the fixing stud (10) penetrating through the through hole (11), and a notch (15) for installing the second nut (14) is opened on the precast beam main body (2).

6. The positioning device for precast beam installation according to claim 1, characterized in that, Springs (16) are sleeved on the outer sides of the two dampers (8), and the two ends of the springs (16) are respectively fixed to the mounting plate (9) and the bottom of the groove (7).

7. A positioning device for precast beam installation according to claim 1, characterized in that, Fixing plates (17) are fixedly arranged on the side walls of the two support columns (1), and the fixing plates (17) are used to abut against the rollers (6).

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