Template limiting device for preventing main tower concrete slab staggering

Abstract

The utility model is applicable to the technical field of bridge concrete pouring, and provides a template limiting device for preventing main tower concrete slab staggering, which comprises a row of anchor bars, a climbing cone and a long screw rod, the long screw rod penetrates into a limiting vertical frame, a first nut component is screwed into the outer end of the long screw rod, a short screw rod penetrates into the upper part of the limiting vertical frame, and a second nut component is screwed into the outer end of the short screw rod. A second nut assembly is screwed into the outer end of the short screw, the inner side of the upper portion of the limiting vertical frame is pressed to the pull rod distribution beam, and a third nut assembly is further screwed into the inner end of the short screw. The limiting device can play a role in limiting displacement of the formwork and dissipating normal force generated by concrete pouring and curing, so that a main tower concrete structure is protected against damage, and demolding and slab staggering accidents are avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bridge concrete pouring technical field especially relates to a formwork limiting device for preventing main tower concrete misalignment. BACKGROUND

[0002] The purpose of setting the limiting frame on the outer side of the formwork is to prevent the main tower formwork from being displaced greatly under the action of the normal force generated during concrete pouring and curing, prevent the concrete formwork from falling off and minimize the relative sliding between the formworks. SUMMARY

[0003] In view of the above problems, the utility model aims at providing a formwork limiting device for preventing main tower concrete misalignment, and aims at solving the above technical problems.

[0004] The utility model adopts the following technical scheme:

[0005] The formwork limiting device for preventing main tower concrete misalignment comprises a row of anchor bars embedded in the main tower concrete, the head end of the anchor bar is connected with a climbing cone, one long screw rod is connected to each climbing cone, the long screw rod penetrates into a limiting vertical frame, a first nut assembly is screwed into the outer end of the long screw rod and is pressed against the limiting vertical frame, a short screw rod penetrates into the upper part of the limiting vertical frame, a second nut assembly is screwed into the outer end of the short screw rod and is pressed against the limiting vertical frame, the inner side of the upper part of the limiting vertical frame is pressed against the tie rod distribution beam of the main tower concrete pouring formwork, and a third nut assembly is screwed into the inner end of the short screw rod and is pressed against the tie rod distribution beam.

[0006] Further, the limiting vertical frame and the tie rod distribution beam are both a pair of back-to-back channel steels, and the long screw rod and the short screw rod both penetrate into the position between the channel steels.

[0007] Further, the inner side and the outer side of the limiting vertical frame are both fixedly connected with a connecting plate, and the inner top of the limiting vertical frame is further fixedly connected with an angle steel.

[0008] Further, each nut assembly comprises a nut gasket and a wing nut.

[0009] Further, the inner side of the limiting vertical frame is further provided with a limiting cross frame below the tie rod distribution beam, and the inner side of the limiting cross frame abuts and is pressed against the wooden I-beam of the main tower pouring formwork.

[0010] The template limiting device is fixed on the main tower concrete, and is installed at the flange part of the pull rod distribution beam of the main tower concrete pouring formwork, the locking of the nut assemblies enables the limiting vertical frame to be pressed inward, and the pull rod distribution beam and the limiting vertical frame are fixedly integrated, and the overall structure is firm; the device can limit the displacement of the formwork, dissipate the normal force generated during the concrete pouring and curing, thereby protecting the main tower concrete structure from being damaged, and avoiding the occurrence of stripping and formwork displacement accidents. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is a front view of the template limiting device provided by the utility model embodiment;

[0012] Figure 2 is Figure 1 is a sectional view along A-A direction in the figure;

[0013] Figure 3 is Figure 1 is a sectional view along B-B direction in the figure. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the utility model is further described in detail below by combining with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0015] In order to explain the technical scheme of the utility model, the following is described by specific embodiments.

[0016] As Figures 1-3 shown, the template limiting device for preventing main tower concrete formwork displacement provided by the embodiment comprises an anchor bar 1 embedded in the main tower concrete 100, the head end of the anchor bar 1 is connected with a climbing cone 2, each climbing cone 2 is connected with a long screw rod 3, the long screw rod 3 penetrates into a limiting vertical frame 4, the outer end of the long screw rod 3 is screwed into a first nut assembly 5 and is pressed to the limiting vertical frame 4, the upper part of the limiting vertical frame 4 is also penetrated by a short screw rod 6, the outer end of the short screw rod 6 is screwed into a second nut assembly 7 and is pressed to the limiting vertical frame 4, the inner side of the upper part of the limiting vertical frame 4 is pressed to the pull rod distribution beam 200 of the main tower concrete pouring formwork, the inner end of the short screw rod 6 is also screwed into a third nut assembly 8 and is pressed to the pull rod distribution beam 200. In the figure, each nut assembly comprises a nut gasket 11 and a butterfly nut 12.

[0017] The limiting device mainly comprises a bolt structure part and a limiting structure part, wherein the bolt structure part mainly comprises an anchor bar, a climbing cone, a long screw rod and a short screw rod; the limiting structure mainly comprises a limiting vertical frame, and in the preferred structure, the inner side of the limiting vertical frame 4 is located below the position of the pull rod distribution beam, and a limiting horizontal frame 13 is further arranged, and the inner side of the limiting horizontal frame 13 is abutted and pressed to the wooden I-beam 300 of the main tower pouring formwork. The limiting structure further comprises a limiting horizontal frame. The bolt structure part is in multiple groups, and only one group is shown in the figure. The anchor bar is pre-buried in the main tower concrete 100, the tail end is bent downward, and the head end is provided with the climbing cone, and the long screw rod is fixed in the climbing cone.

[0018] The upper part of the limiting vertical frame is fixed and integrated with the pull rod distribution beam of the main tower concrete pouring formwork through the short pull rod, the second and third nut assemblies. Figure 1 As shown in the figure, by tightening the first nut assembly, the limiting vertical frame is pressed inward, and under the action of the normal force generated during the concrete pouring and curing, the limiting device consumes the normal force, thereby limiting the displacement of the formwork. Therefore, by arranging the limiting device, the horizontal force of the formwork can be borne, and the device is uniformly stressed, and the overall structure is firm.

[0019] As a specific structure, the limiting vertical frame 4 and the pull rod distribution beam 200 are both a pair of back-to-back arranged channel steels, and the long screw rod 3 and the short screw rod 6 are both inserted into the position between the channel steels. The inner side and the outer side of the limiting vertical frame 4 are both fixed with a connecting plate 9, the connecting plate is a steel plate, and the inner side top of the limiting vertical frame 4 is further fixed with an angle steel 10. The connecting plate and the angle steel are welded, the limiting vertical frame and the pull rod distribution beam are both channel steels, and a gap is arranged therebetween, and the channel steels of the limiting vertical frame are fixed and integrated through the connecting plate and the angle steel. The long screw rod and the short screw rod are inserted into the gap between the channel steels and are locked through the nut assemblies.

[0020] Therefore, according to the structure of the utility model, the limiting device can limit the normal displacement of the concrete formwork, avoid damage of the formwork due to incorrect setting and excessive displacement during the concrete pouring and curing, and avoid the occurrence of demolding accidents.

[0021] The above only describes the preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A formwork limiting device for preventing concrete misalignment in a main tower, characterized in that, The template limiting device includes a row of anchor bars embedded in the main tower concrete. The ends of the anchor bars are connected to climbing cones, and each climbing cone is connected to a long screw rod. The long screw rod passes through a limiting vertical frame. The outer end of the long screw rod is screwed into a first nut assembly and pressed against the limiting vertical frame. The upper part of the limiting vertical frame is also inserted with a short screw rod. The outer end of the short screw rod is screwed into a second nut assembly and pressed against the limiting vertical frame. The inner side of the upper part of the limiting vertical frame is pressed against the tie rod distribution beam of the main tower concrete pouring template. The inner end of the short screw rod is screwed into a third nut assembly and pressed against the tie rod distribution beam.

2. The formwork limiting device for preventing concrete misalignment in the main tower as described in claim 1, characterized in that, The limiting vertical frame and the tie rod distribution beam are both a pair of channel steels arranged in opposite directions, and the long screw and the short screw are both inserted between the channel steels.

3. The formwork limiting device for preventing concrete misalignment in the main tower as described in claim 2, characterized in that, The limiting vertical frame is fixed with connecting plates on both the inner and outer sides, and an angle steel is also fixed to the top of the inner side of the limiting vertical frame.

4. The formwork limiting device for preventing concrete misalignment in the main tower as described in claim 3, characterized in that, Each nut assembly includes a nut washer and a wing nut.

5. The formwork limiting device for preventing concrete misalignment in the main tower as described in claim 4, characterized in that, The inner side of the limiting vertical frame is also provided with a limiting horizontal frame located below the tie rod distribution beam. The inner side of the limiting horizontal frame abuts and presses against the wooden I-beam of the main tower casting formwork.

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