CN211849566U

CN211849566U - Roughing mill body reserved bolt hole support-free template

Info

Publication number: CN211849566U
Application number: CN201922158899.0U
Authority: CN
Inventors: 韩晓强; 隋新; 刘宇昆
Original assignee: MCC Tiangong Group Corp Ltd
Current assignee: MCC Tiangong Group Corp Ltd
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-11-03
Anticipated expiration: 2029-12-05

Abstract

The utility model provides a rough rolling mill body reserves bolt hole and exempts from a template, includes the reservation hole box, the reservation hole box includes bottom shrouding, a plurality of screw steel pipe, top shrouding, a plurality of screw steel pipe equipartitions set up between top shrouding and the bottom shrouding, the top shrouding be equipped with the top shrouding hole that the upper end of a plurality of screw steel pipes corresponds, the upper end of a plurality of screw steel pipes passes top shrouding hole and with top shrouding fixed connection, the bottom shrouding be equipped with the bottom shrouding hole that the lower tip of a plurality of screw steel pipes corresponds, the lower tip of a plurality of screw steel pipes passes bottom shrouding hole and with bottom shro. The utility model discloses effectively solve the drawback of wood former construction, the screw-thread steel pipe has increased the bulk rigidity of template, reduces the template and demolishs the process, and labour saving and time saving, screw-thread steel pipe and concrete foundation link firmly for whole use, guarantee the quality of reservation bolt hole, and screw-thread steel pipe screw thread can effectively prevent that rag bolt from being extracted simultaneously.

Description

Roughing mill body reserved bolt hole support-free template

Technical Field

The utility model is suitable for a bolt hole construction problem is reserved to track among the industrial building, concretely relates to roughing mill body is reserved bolt hole and is exempted from a template.

Background

With the development of large-scale and modernized industrial buildings in China, the obsolete backward capacity and the technology transformation strength of industries such as coking, steel, metallurgy and the like are continuously increased, the optimization and upgrade of industrial structures and the concurrent recombination of enterprises are carried out, the large-scale, automatic, clean and environment-friendly construction and transformation are realized, the number of reserved bolt holes of large-scale equipment tracks is gradually increased, and holes are deeper and deeper. According to the traditional construction methods of adopting wood formworks, foam boards, steel plate formworks, prefabricated formworks and the like, the formworks and the foam boards cannot be taken out due to the fact that holes are too deep, and due to the fact that strength is not enough, deformation is often serious when concrete pouring and vibration are carried out, and the quality of bolt holes cannot meet the installation requirements of follow-up equipment. By adopting the construction technology of the threaded steel pipe without a formwork, the problems that the formwork cannot be completely or even removed in the prior construction can be well solved, and the problem of insufficient strength of the formwork is solved. The characteristics of high rigidity and high friction of the threaded steel pipe are fully utilized, the lateral pressure generated in the concrete pouring process is effectively resisted, the threaded steel pipe is fixedly connected with a concrete foundation to be integrally used, and the sufficient connection strength can be ensured.

At present, a wood template is mainly adopted for reserved bolt hole construction, and the construction method mainly has the following problems:

1. the quality of the engineering is difficult to ensure

Because the lateral rigidity of the wood template is small, the wood template is often seriously deformed and even crushed when concrete pouring and vibrating are carried out, and the appearance of pore-forming quality is poor.

2. Time and labor consuming assembly and disassembly of template

The template is difficult to take out after the concrete solidifies, can not reuse, and the template installation is wasted time and energy with demolishing.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem existing in the prior art, the utility model adopts the following technical scheme.

A supporting-free template for a reserved bolt hole of a roughing mill body comprises a reserved hole box, wherein the reserved hole box comprises a bottom sealing plate, a plurality of threaded steel pipes and a top sealing plate, the plurality of threaded steel pipes are uniformly distributed between the top sealing plate and the bottom sealing plate, the top sealing plate is provided with top sealing plate holes corresponding to the upper ends of the plurality of threaded steel pipes, the upper ends of the plurality of threaded steel pipes penetrate through the top sealing plate holes and are fixedly connected with the top sealing plate, the bottom sealing plate is provided with bottom sealing plate holes corresponding to the lower ends of the plurality of threaded steel pipes, and the lower ends of the plurality of threaded steel pipes penetrate through the bottom sealing plate holes and are fixedly connected with the bottom sealing plate;

furthermore, the threaded steel pipes are fixedly connected through a plurality of positioning steel bars;

further, the top sealing plate forms a threaded pipe cover plate;

further, the bottom sealing plate forms a threaded pipe cover plate;

further, the top sealing plate is parallel to the bottom sealing plate;

further, the bottom sealing plate holes are arranged in a centrosymmetric manner with respect to the center of gravity of the bottom sealing plate.

The utility model discloses the technique mainly used solves the roughing mill body and reserves the bolt hole, and traditional template construction accomplishes the back, has the template to demolish unclean, the phenomenon that can't demolish even, and plank sheathing rigidity is little, and the mould phenomenon that expands appears easily in concrete placement in-process is difficult to guarantee the shaping quality who reserves the bolt hole. The novel formwork-dismantling-free construction method is adopted, the defects of wood formwork construction are effectively overcome, the overall rigidity of the formwork is increased by the threaded steel pipe, the formwork dismantling process is reduced, time and labor are saved, the threaded steel pipe is fixedly connected with the concrete foundation into a whole for use, the quality of the reserved bolt hole is ensured, and the threads of the threaded steel pipe can effectively prevent the foundation bolt from being pulled out.

Drawings

FIG. 1: the utility model discloses a section view for installing a threaded steel pipe;

FIG. 2: the utility model discloses a top view of the installation of the threaded steel pipe;

FIG. 3: the utility model is a schematic diagram of a bottom sealing plate;

FIG. 4: the utility model discloses top shrouding schematic diagram.

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 efforts belong to the protection scope of the present invention.

Secondly, the technical terms such as "first", "second", "up", "down", "left", "right", "front", "back", "far", "near", etc. mentioned in the present invention are technical terms known clearly in the technical field and some position or spatial definitions performed for convenience of describing the embodiment, and are not limiting of the present invention, so it is not necessary to make much explanation.

Example 1

For solving the problems of expanding a die, difficult demolition, poor impression quality and the like in the construction of a reserved bolt hole, the template structure for reserving the basic pre-buried bolt hole of the equipment in cast-in-place concrete is researched, and comprises a reserved hole box formed by fixedly connecting and combining a bottom sealing plate, a threaded steel pipe and a top sealing plate (which can be repeatedly utilized), wherein the reserved hole box is fixedly arranged in a concrete foundation and used for pouring internal concrete and fixing foundation bolts. The construction method fully utilizes the advantages of high rigidity, high friction force of the corrugated surface, uniform stress and the like of the threaded pipe, effectively solves the problems of difficult die expansion and removal, poor appearance quality and the like, greatly improves the construction quality, precision and efficiency of the reserved bolt hole, saves the cost, and has extremely high popularization value to the whole building industry.

As shown in fig. 1-4, a roughing mill body reserved bolt hole support-free template comprises a reserved hole box, wherein the reserved hole box comprises a bottom seal plate 2, a plurality of threaded steel pipes 1 and a top seal plate 3, the plurality of threaded steel pipes 1 are uniformly distributed between the top seal plate 3 and the bottom seal plate 2, the top seal plate 3 is provided with top seal plate holes corresponding to the upper ends of the plurality of threaded steel pipes, the upper ends of the plurality of threaded steel pipes penetrate through the top seal plate holes and are fixedly connected with the top seal plate, the bottom seal plate 2 is provided with bottom seal plate holes corresponding to the lower ends of the plurality of threaded steel pipes, and the lower ends of the plurality of threaded steel pipes penetrate through the bottom seal plate holes and are fixedly connected with the bottom seal plate;

furthermore, the threaded steel pipes are fixedly connected through a plurality of positioning steel bars 4;

further, the top sealing plate forms a threaded pipe cover plate 5;

the operation steps and the working principle are as follows:

1) procedure for the preparation of the

Binding bottom steel bars → measuring and paying-off → positioning corrugated sleeves → fixing the corrugated sleeves (containing bottom sealing plates) → installing upper steel bars → installing top sealing plates → pouring concrete → dismantling the top sealing plates.

2) Working principle and description

A first part:

1. binding bottom steel bars

2. Corrugated sleeve and bottom seal plate positioning

According to the central line of the track foundation to be measured and thrown, a fixed line frame is respectively installed at each end point by using angle steel, 24# steel wires are respectively pulled between the line frames, and the reference line is used as a reference line to lead a positioning line of a bottom sealing plate (drawing 2). Because the corrugated pipe is circular, deviation is easy to occur when the center is positioned, and therefore, the outer borderline of the corrugated pipe is popped up on the bottom steel plate, and positioning is convenient.

3. Installation of corrugated sleeve and bottom plate sealing plate

Installing corrugated sleeves (a drawing 1) and bottom seal plates (a drawing 2) according to the positioned central line and elevation, taking a hoop and a steel bar in the corrugated sleeve as a fixed support frame, wherein every 4 corrugated sleeves are in a group and share 1 bottom seal plate to form a stressed whole; if the number of the bolt groups is more or irregular, the corrugated sleeves at the same position can be set according to the design position. The embedded length of the corrugated pipe is determined according to the length of the embedded bolt in the design drawing, and the length of the corrugated pipe is longer than that of the embedded bolt, so that the corrugated pipe is convenient to adjust when the bolt is installed.

4. The top layer reinforcing bar of installation upper portion, the reinforcing bar begins to arrange to the outside from the intensive position of ripple sleeve, and when there are many groups ripple sleeve, the reinforcing bar is arranged from every group sleeve intermediate position toward both sides, and the accumulative total deviation of reinforcing bar interval is digested between group and group.

5. Mounting a top sealing plate (drawing 3);

6. and (5) pouring concrete, and after pouring is finished, removing the top sealing plate and replacing the top sealing plate to the next area.

A second part:

corrugated sleeve and bottom plate sealing plate manufacturing

7. The corrugated sleeve and the bottom plate sealing plate are manufactured and mainly comprise a threaded steel pipe, a thin steel plate with the thickness of 3mm, a cover plate and a steel bar.

8. Preparing a thin steel plate (drawing 2) with the thickness of 3mm, and positioning the rectangular steel plate with the size being 200mm larger than the outer diameter of the reserved bolt hole according to the design requirement of a drawing.

9. Four threaded steel pipes (figure 1) with the diameter close to the reserved bolt holes and the length longer than the bolt holes by 200-300mm are prepared and welded and positioned on the bottom sealing plate.

10. The threaded steel pipes are welded through the diagonal lines of the reinforcing steel bars by the hoops, so that the overall stability is improved.

And a third part:

removal of top closure plate

11. And after the top sealing plate is removed, cutting redundant corrugated pipes by using a grinding wheel cutting machine.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.

Claims

1. The utility model provides a rough rolling mill body reserves bolt hole and exempts from a template, includes and reserves the hole box, its characterized in that, it includes bottom shrouding, a plurality of screw steel pipe, top shrouding to reserve the hole box, a plurality of screw steel pipe equipartitions set up between top shrouding and the bottom shrouding, the top shrouding be equipped with the top shrouding hole that the upper end of a plurality of screw steel pipes corresponds, the upper end of a plurality of screw steel pipes passes top shrouding hole and with top shrouding fixed connection, the bottom shrouding be equipped with the bottom shrouding hole that the lower tip of a plurality of screw steel pipes corresponds, the lower tip of a plurality of screw steel pipes passes bottom shrouding hole.

2. The support-free formwork for the reserved bolt holes of the roughing mill body as recited in claim 1, wherein the plurality of threaded steel pipes are fixedly connected through a plurality of positioning steel bars.

3. The roughing mill body backup free plate for a preformed bolt hole of claim 1 wherein said top seal plate forms a threaded pipe cover plate.

4. The roughing mill body backup free plate for a preformed bolt hole of claim 1 wherein said bottom seal plate forms a threaded tube cover plate.

5. The roughing mill body backup plate for a retained bolt hole of claim 1 wherein said top seal plate is parallel to said bottom seal plate.

6. The roughing mill body backup free plate for a reserved bolt hole of claim 1 wherein said bottom seal plate hole is centrally symmetric about said bottom seal plate center of gravity.