Local filling template for rear gap of steel enclosing purlin

Abstract

The utility model relates to a steel enclosing purlin rear gap local filling formwork which is composed of a fixing structure and a formwork structure, the main body of the fixing structure is a first fixing plate, and the upper surfaces of the two ends of the first fixing plate are sequentially provided with a third fixing plate, a clamping plate and a second fixing plate. The third fixing plate and the second fixing plate are steel plates not prone to deformation, and the clamping plate is provided with a stripe structure to increase friction force. The clamping plates are pushed tightly through the bolts so as to clamp the edge of the flange plate of the steel enclosing purlin, and it is guaranteed that the fixing structure is stable. The template structure comprises a bottom template and a side template which are rectangular, have the same width and are used for forming the boundary of the filler. Non-through bolt holes are formed in the two sides of the bottom formwork, bolt holes are formed in the outer sides of the lower ends of the side formworks, and the bottom formwork and the side formworks are fixed together through buckle bolts. In addition, the stretching structure of the formwork is composed of a flexible material and a plurality of springs, can adapt to the unevenness of the enclosure structure and is tightly attached to the enclosure structure during installation, and gaps are prevented from being generated between the filler and the enclosure structure.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of foundation pit retaining structure construction, concretely is a kind of steel encloses purlin back gap local filling formwork. BACKGROUND

[0002] In the process of subway underground structure construction, steel encloses purlin is usually used as important part of supporting structure, provides the stability of overall structure. After installing steel encloses purlin, due to the construction error of retaining pile, gap will exist behind steel encloses purlin, cannot be attached to retaining pile to achieve supporting effect, so it needs to fill these gaps using mortar or concrete. However, due to the retaining pile behind the purlin during the process of foundation pit excavation, first, broken device will be used to trim the arc-shaped pile body into a relatively flat surface, then net spray is used for support, the construction error is large in the whole process and difficult to fine adjustment, finally, the surface of net spray behind steel encloses purlin is often uneven, the existing formwork cannot be completely attached during installation, leading to mortar or concrete leakage during filling process, affecting construction quality.

[0003] The existing solution usually solves these problems by manually adjusting the position of formwork or filling plastic cloth or foam glue and other sealing materials into the gap, but these methods are easy to increase construction complexity, and the filling effect is not ideal. Therefore, developing a formwork that can be conveniently fixed and effectively attached to the surface of retaining structure net spray to ensure that mortar or concrete does not leak during filling has become the key to improving construction efficiency and quality. UTILITY MODEL CONTENTS

[0004] The utility model is aimed at providing a steel encloses purlin back gap filling formwork to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of steel encloses purlin back gap local filling formwork is composed of fixed structure and formwork structure, wherein: the fixed structure includes first fixed plate, the upper surface of both ends of first fixed plate is equipped with one second fixed plate, one clamping plate, one third fixed plate, third fixed plate is equipped with one bolt hole, bolt hole is equipped with bolt;The formwork structure includes bottom formwork, bottom formwork is connected with first fixed plate, the outside of bottom formwork is equipped with side formwork, the bottom of both sides of bottom formwork is equipped with one non-through bolt hole, the outside of the lower end of side formwork is equipped with one non-through bolt hole, side formwork is connected with bottom formwork by first buckle bolt fixed first buckle, adjacent two bottom formworks are connected with each other by second buckle bolt fixed second buckle, the side of bottom formwork and side formwork towards retaining structure is connected with extension structure, multiple springs are equidistantly arranged in extension structure.

[0006] As a preferred mode of the utility model, the length of the first fixed plate is the same as the width of the steel encloses purlin.

[0007] As a preferred mode of the utility model, the third fixed plate and the second fixed plate are perpendicular to the first fixed plate.

[0008] As a preferred mode of the utility model, the third fixed plate and the second fixed plate are perpendicular to the first fixed plate.

[0009] As a preferred mode of the utility model, the third fixed plate and the second fixed plate are perpendicular to the first fixed plate.

[0010] As a preferred mode of the utility model, the third fixed plate and the second fixed plate are perpendicular to the first fixed plate.

[0011] As a preferred mode of the utility model, the third fixed plate and the second fixed plate are perpendicular to the first fixed plate.

[0012] As a preferred mode of the utility model, the third fixed plate and the second fixed plate are perpendicular to the first fixed plate.

[0013] The utility model discloses a kind of steel encloses purlin rear gap filling formwork, which is installed on the flange plate of steel encloses purlin by clamping mode, without additional punching or processing, reduce construction difficulty and time cost;Multiple formworks have independent fixing structure, and are connected by bolt, suitable for filling demand of different length behind steel encloses purlin;In addition, expansion structure can adapt to uneven surface, ensure seamless filling, reduce the generation of gap, to enhance filling effect and the integrity of structure. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure schematic view of the utility model;

[0015] Figure 2 It is the left view of the utility model;

[0016] Figure 3 It is the structure schematic view of fixed structure of the utility model;

[0017] Figure 4 It is the left view of fixed structure of the utility model;

[0018] Figure 5 It is the structure schematic view of formwork structure of the utility model;

[0019] Figure 6 It is the bottom view of formwork structure of the utility model;

[0020] Figure 7 It is the left view of formwork structure of the utility model;

[0021] Figure 8 It is the side view perspective drawing of expansion structure of the utility model;

[0022] Among them: 1. Fixed structure, 2. Formwork structure, 11. First fixed plate, 12. Second fixed plate, 13. Clamp, 14. Third fixed plate, 15. Fixing bolt, 21. Bottom formwork, 22. Side formwork, 23. Extension structure, 24. First clip, 25. First clip bolt, 26. Second clip, 27. Second clip bolt, 28. Spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1-8 , a specific implementation of the utility model is:

[0025] like Figures 1-2 As shown, a template for filling the gap behind a steel purlin is composed of a fixed structure 1 and a template structure 2. The fixed structure 1 is adapted to the bottom structure of the steel purlin and can be installed at the bottom of the steel purlin by snapping without the need for additional punching or processing of the steel purlin. This fixing method ensures that the patent can be installed at any mileage of the steel purlin. The template structure 2 is connected to the fixed structure 1 and is used as a template for pouring the filler behind the steel purlin.

[0026] like Figures 3-4 As shown, the main body of the fixing structure 1 is a first fixing plate 11. The length of the first fixing plate 11 is the same as the width of the steel purlin. Identical parts are installed at both ends to secure the device to the bottom of the steel purlin. Taking the end near the front of the steel purlin as an example, the surface of the first fixing plate 11 is sequentially provided with a third fixing plate 14, a clamping plate 13, and a second fixing plate 12. The third fixing plate 14 and the second fixing plate 12 are both made of non-deformable steel plates, arranged perpendicular to the first fixing plate 11 and having the same width as the first fixing plate 11. The clamping plate 13 is made of a thinner iron sheet and has a horizontal striped structure on the side facing the second fixing plate 12 to increase friction. The spacing between the clamping plate 13 and the second fixing plate 12 is greater than the thickness of the steel purlin flange. The third fixing plate 14 has a bolt hole for installing a fixing bolt 15. Tightening the fixing bolt 15 pushes the clamping plate 13, clamping the edge of the steel purlin flange, thereby securing the device to the bottom of the steel purlin.

[0027] like Figures 5-8As shown, the template structure 2 comprises a bottom template 21 and a side template 22, both of which are rectangular and have the same width, wherein the bottom template 21 is connected with the first fixed plate 11. Both sides of the bottom template 21 are provided with a non-through bolt hole, and the lower end of the side template 22 is provided with a non-through bolt hole, and the L-shaped first buckle 24 can be connected on the bolt holes of the bottom template 21 and the side template 22 through the first buckle bolt 25, so that the side template 22 is vertically fixed on the bottom template 21 to form the bottom template and the side template for filling pouring. The two bottom templates 21 can be assembled by connecting the straight strip-shaped second buckle 26 on the two bottom templates 21 through the second buckle bolt 27, and the width of the filling template after the steel enclosing purlin is increased, wherein each bottom template 21 is connected with an independent fixed structure 1. The bottom template 21 and the side template 22 are connected with the extension structure 23 towards the side of the enclosure structure, the extension structure 23 is made of flexible material, and a plurality of springs 28 are equidistantly arranged inside, under normal circumstances, the springs 28 stretch the extension structure 23 to the longest state, when the patent is installed at the bottom of the steel enclosing purlin, the extension structure 23 and the enclosure structure net spraying surface are closely attached, so as to prevent the existence of gaps caused by the unevenness of the net spraying surface.

[0028] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A local filling template for the gap behind a steel purlin, characterized in that: The invention is composed of a fixing structure (1) and a template structure (2), wherein: the fixing structure (1) includes a first fixing plate (11), and the upper surfaces of both ends of the first fixing plate (11) are respectively provided with a second fixing plate (12), a clamping plate (13), and a third fixing plate (14), and the third fixing plate (14) is provided with a bolt hole, and a bolt (15) is installed in the bolt hole; the template structure (2) includes a bottom template (21), the bottom template (21) is connected to the first fixing plate (11), and the outer side of the bottom template (21) is provided with a side template (22), and the bottom A non-through bolt hole is provided at the bottom of both sides of the template (21), and a non-through bolt hole is provided on the outer side of the lower end of the side template (22). The side template (22) is connected to the bottom template (21) by fixing the first clip (24) with a first clip bolt (25). The two adjacent bottom templates (21) are connected to each other by fixing the second clip (26) with a second clip bolt (27). The bottom template (21) and the side template (22) are connected to the side of the enclosure structure with an extension structure (23), and a plurality of springs (28) are equidistantly provided inside the extension structure (23).

2. A local filling template for gaps behind steel purlins according to claim 1, characterized in that: The length of the first fixing plate (11) is the same as the width of the steel purlin.

3. The local filling formwork for gaps behind steel purlins according to claim 1, characterized in that: The third fixing plate (14) and the second fixing plate (12) are arranged perpendicular to the first fixing plate (11).

4. The local filling formwork for gaps behind steel purlins according to claim 1, characterized in that: The widths of the third fixing plate (14) and the second fixing plate (12) are the same as that of the first fixing plate (11).

5. The local filling formwork for gaps behind steel purlins according to claim 1, characterized in that: The clamping plate (13) has a transverse stripe structure on one side facing the second fixing plate (12).

6. The local filling formwork for gaps behind steel purlins according to claim 1, characterized in that: The distance between the clamping plate (13) and the second fixing plate (12) is greater than the thickness of the steel purlin flange plate.

7. The local filling formwork for gaps behind steel purlins according to claim 1, characterized in that: The bottom template (21) and the side template (22) are both rectangular and have the same width.

8. The local filling formwork for gaps behind steel purlins according to claim 1, characterized in that: The stretching structure (23) is made of flexible material.

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