Overwater steel casing positioning frame

Abstract

The utility model relates to the technical field of building construction, and discloses an overwater steel casing positioning frame which comprises a positioning frame body, the positioning frame body is composed of four guide rails which are vertically aligned at intervals, a plurality of positioning holes are formed in the guide rails at equal intervals in the length direction, and positioning bolts penetrate through the positioning holes to relatively fix the two stacked guide rails. A sliding block is connected to the guide rail in a sliding mode, a fixing plate is connected to the upper end of the sliding block through a bolt, a pulley base is fixedly connected to the fixing plate, and a pulley is rotationally connected to the pulley base. The steel casing construction positioning device capable of being adjusted according to different pile diameters facilitates positioning of the steel casing in cast-in-place pile construction, solves the problem of positioning of the steel casing with the pile position in water, is efficient and convenient, and well guarantees the cast-in-place pile construction quality.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to an above-water steel casing positioning frame. Background Art

[0002] With the rapid development of domestic bridge technology, cross-river and cross-sea bridges have developed rapidly. In the construction process of bridges crossing rivers and seas, steel platforms for auxiliary construction are usually used. The bored pile construction of the bridge is completed on this steel platform, so the positioning of the steel casing for bored pile construction also needs to be carried out on the steel platform. The verticality and positioning accuracy of the steel casing will directly affect the quality of the bored piles. Therefore, accurate positioning of the steel casing will directly affect the quality and work efficiency of the bored piles. Utility Model Content

[0003] In order to solve the problems of the above-mentioned prior art, the utility model adopts a steel casing construction positioning device which is placed on a steel platform Bailey frame and can be adjusted according to different pile diameters. It is convenient to position the steel casing during bored pile construction and solves the problem of steel casing positioning when the pile is in water. It is efficient and convenient and has a good guarantee for the quality of bored pile construction.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water steel casing positioning frame, including a positioning frame, the positioning frame is composed of four guide rails aligned with upper and lower intervals, a plurality of positioning holes are equidistantly provided on the guide rails along the length direction, positioning bolts pass through the positioning holes to relatively fix two stacked guide rails, a slider is slidably connected to the guide rail, a fixing plate is bolted to the upper end of the slider, a pulley base is fixedly connected to the fixing plate, a pulley is rotatably connected to the pulley base, a positioning assembly is provided on the side of the slider, and positioning grooves are evenly distributed on the side of the guide rail close to the positioning assembly.

[0005] With the above structural design, the device can be adjusted according to bored piles of different pile diameters, and has strong versatility. The materials used are common, the production is simple, and it can be put into use quickly. At the same time, the device can be disassembled and moved, which increases the scope of application of the device in the construction of different projects. A positioning component is set to prevent the displacement of the slider when the steel casing is lowered, causing the steel casing and the pulley to be misaligned, thereby affecting the verticality of the steel casing and the accuracy of positioning. The position of the slider and the guide rail is relatively fixed, which improves the practicality of the device and has a good guarantee for the quality of bored pile construction.

[0006] Preferably, the positioning assembly includes a fixing frame fixedly connected to the side of the slider, an insert block is installed inside the fixing frame, the insert block can be inserted into the positioning groove to relatively fix the slider and the guide rail, a rebound spring is arranged between the slider and the insert block, and a cam is rotatably connected to the fixing frame, and the cam conflicts with the insert block.

[0007] With the above structural design, when the slider needs to be fixed, the cam installed on the fixed frame is rotated, and the cam squeezes the insert block into the positioning groove. At this time, the slider and the guide rail are relatively fixed. When the slider needs to be moved, the cam is rotated in the opposite direction. At this time, the reset function of the rebound spring pops the insert block out of the positioning groove, and the slider can move on the guide rail.

[0008] Preferably, the positioning frame is fixedly connected to the Bailey frame by bolts, and the positioning frame is provided in two sets and arranged vertically up and down.

[0009] With the above structural design, the upper and lower positioning frames ensure the verticality of the lower steel casing and improve the accuracy of the steel casing construction positioning.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model can be adjusted according to the pile diameter of different steel casings, the device utilization rate is high, and the accuracy of steel casing construction positioning is improved. It can be disassembled and moved, which increases the application range of the device in the construction of different projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the internal structure of the positioning component of the utility model. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] See also Figure 1-2 The utility model provides a technical solution: a water steel casing positioning frame, including a positioning frame, the positioning frame is composed of four guide rails 1 aligned with upper and lower intervals, the guide rail 1 is provided with a plurality of positioning holes 6 equidistantly along the length direction, and positioning bolts 8 pass through the positioning holes 6 to relatively fix the two stacked guide rails 1, a slider 2 is slidably connected to the guide rail 1, a fixing plate 10 is bolted to the upper end of the slider 2, a pulley base 3 is fixedly connected to the fixing plate 10, and a pulley 4 is rotatably connected to the pulley base 3. The device can be adjusted according to cast-in-place piles of different pile diameters, and has strong versatility. The materials used are common, the production is simple, and it can be quickly put into use. At the same time, the device can be disassembled and moved, which increases the scope of application of the device in the construction of different projects.

[0016] The side of the slider 2 is provided with a positioning assembly 7, and the side of the guide rail 1 close to the positioning assembly 7 is evenly provided with positioning grooves 5. This prevents the slider 2 from shifting when the steel casing is lowered, causing the steel casing to be misaligned with the pulley, thereby affecting the verticality and positioning accuracy of the steel casing. The positions of the slider 2 and the guide rail 1 are relatively fixed, which improves the practicality of the device and has a good guarantee for the quality of cast-in-place pile construction.

[0017] The positioning assembly 7 includes a fixing frame 701 fixedly connected to the side of the slider 2, an insert block 702 is installed inside the fixing frame 701, and the insert block 702 can be inserted into the positioning groove 5 to relatively fix the slider 2 and the guide rail 1. A rebound spring 703 is arranged between the slider 2 and the insert block 702. A cam 704 is rotatably connected to the fixing frame 701, and the cam 704 conflicts with the insert block 702. When the slider 2 needs to be fixed, the cam 704 installed on the fixing frame is rotated, and the cam 704 squeezes the insert block 702 into the positioning groove 5. At this time, the slider 2 and the guide rail 1 are relatively fixed. When the slider 2 needs to be moved, the cam 704 is rotated in the opposite direction. At this time, the reset function of the rebound spring 703 pops the insert block 702 out of the positioning groove 5, and the slider 2 can move on the guide rail 1.

[0018] The positioning frame is fixedly connected to the Bailey frame by bolts, and the positioning frame is provided in two sets and arranged vertically up and down. The two sets of positioning frames ensure the verticality of the steel casing below and improve the accuracy of the construction positioning of the steel casing.

[0019] Working principle: This device consists of two sets of identical positioning frames, which are arranged vertically up and down. First, the two sets of positioning frames of this device are separately made on land according to the outer diameter of the steel casing of the bored pile. The four guide rails 1 of a single set of positioning frames need to be slightly larger than the reserved space of the Bailey plate. The spacing between the Bailey plates is measured, and positioning holes 6 are opened on the guide rails 1. First, the lower positioning frame is hoisted by a crane for installation. During installation, the positioning frame and the Bailey plate are fixed by a combination of positioning bolts 8 and limit plates 9. After the installation is completed, the upper positioning frame is installed. The two-layer positioning frames are adjusted for vertical verticality by comparison with lead pendants to ensure that the two positioning frames are vertically vertical. Move the slider 2 on the guide rail 1 to the middle position. When the slider 2 needs to be moved, rotate the cam 704 in the opposite direction. At this time, the reset function of the rebound spring 703 will pop the plug 702 out of the positioning groove 5. At this time, the slider 2 can move on the guide rail 1. When the slider 2 needs to be fixed, by rotating the cam 704 installed on the fixing frame, the cam 704 squeezes the plug 702 into the positioning groove 5. At this time, the slider 2 is relatively fixed to the guide rail 1. After the installation of this device is completed, the steel casing can be placed. During the downward movement of the steel casing, the outer wall of the steel casing fits with the pulley 4. The rotation of the pulley facilitates the lowering of the steel casing. After the steel casing is placed, the steel casing and the steel platform are connected by rigidity, and then the device can be removed to proceed to the next step of construction.

[0020] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. Although the present utility model is described in detail with reference to the above embodiments, it is still possible for the technical solutions recorded in the above embodiments to be modified, or some of the technical features therein to be replaced by equivalents, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An above-water steel casing positioning frame, characterized in that: The invention comprises a positioning frame, wherein the positioning frame is composed of four guide rails (1) aligned with each other at intervals in the upper and lower directions, a plurality of positioning holes (6) are equidistantly provided on the guide rails (1) along the length direction, positioning bolts (8) pass through the positioning holes (6) to relatively fix two stacked guide rails (1), a slider (2) is slidably connected to the guide rails (1), a fixing plate (10) is connected to the upper end of the slider (2) by bolts, a pulley base (3) is fixedly connected to the fixing plate (10), a pulley (4) is rotatably connected to the pulley base (3), a positioning assembly (7) is arranged on the side of the slider (2), and positioning grooves (5) are evenly distributed on the side of the guide rail (1) close to the positioning assembly (7).

2. The above-water steel casing positioning frame according to claim 1, characterized in that: The positioning assembly (7) comprises a fixing frame (701) fixedly connected to the side of the slider (2); an insert block (702) is installed inside the fixing frame (701); the insert block (702) can be inserted into the positioning groove (5) to relatively fix the slider (2) and the guide rail (1); a rebound spring (703) is arranged between the slider (2) and the insert block (702); a cam (704) is rotatably connected to the fixing frame (701); the cam (704) and the insert block (702) are in conflict.

3. The above-water steel casing positioning frame according to claim 1, characterized in that: The positioning frame is fixedly connected to the Bailey frame by bolts, and the positioning frame is provided in two sets and arranged vertically up and down.

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