Groove layered backfilling and step remaining retaining die

Abstract

The utility model belongs to the technical field of municipal and housing construction groove backfilling, and particularly relates to a groove layered backfilling step retaining die which comprises a step plate, two parallel kicking face plates A are fixed to one side of the step plate, and a kicking face plate B is connected between the two kicking face plates A in an inserted mode. A boss is arranged on the upper portion of the kicking face plate B. A groove is formed in the bottom face of the kicking face plate A. The step plate and the kicking face plate B which are adjacent up and down are connected together through the boss and the groove. Annular sleeves are symmetrically arranged at the left end and the right end of the inner side kicking face plate A. The left F-shaped plate and the right F-shaped plate which are adjacent are connected together through U-shaped anchoring pins penetrating into the annular sleeves. A plurality of round holes are formed in the step plates, and L-shaped anchoring nails can be inserted into the round holes downwards. The supporting and retaining mold is modularized, can be turned over and can be rapidly disassembled and assembled, the stability of the step reserved through layered backfilling is achieved through the step lap joint structure, the construction efficiency and quality are improved, and the material loss rate is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of municipal and house building trench backfilling, especially relates to a trench layered backfilling remaining step supporting and stopping mould. BACKGROUND

[0002] In the municipal and house building trench backfilling construction, the backfilling material in the trench needs to be tamped in layers and sections to ensure the compaction degree of the backfilling material in the trench and the engineering quality of the concealed works. In the traditional construction method, especially in the joint part of the section backfilling, a slope joint is often used, or a simple temporary step is made, and there is no support on the side of the step, or a temporary formwork is used to simply support the temporary step. The traditional method uses a wooden board or a steel formwork for temporary support, which has the following problems:

[0003] (1) The backfilling material in the trench uses a stepless slope joint, or there is no support tool on the side of the remaining joint step, or the support tool for the remaining step is simple. During the construction, the side of the backfilling material at the joint part in the trench often settles or slips, and the side or slipped backfilling material is loose, which affects the visual effect of the joint part of the backfilling material and the compaction degree of the backfilling material at the joint part, and affects the engineering quality. When the joint backfilling at this part is carried out later, a large amount of manpower and material resources are wasted to clean the loose material at this part, which increases the cost of the engineering investment and affects the engineering period.

[0004] (2) The remaining step uses a simple formwork for side support, which needs to be invested once and is difficult to adapt to different trench widths and layer thicknesses, and has low installation efficiency. The side of the formwork is supported by a reinforcing bar and a drill, and the height of the reinforcing bar and the drill is often higher than the top surface of the formwork, which has great safety hazards when the construction personnel go up and down the steps.

[0005] (3) The side support formwork of the remaining step lacks effective connection structure, and is easy to deform on the side, which causes the backfilling material at the step part to be disturbed and slipped, and affects the compaction degree of the material of the remaining step.

[0006] Therefore, a supporting device that can be quickly disassembled, has strong adaptability and can enhance the stability of the backfilling layers is needed. SUMMARY

[0007] The problem to be solved by the present application is to overcome the shortcomings of the background art and provide a trench layered backfilling remaining step supporting and stopping mould.

[0008] The present application is realized by the following technical solutions:

[0009] The trench layered backfill retaining step support mold includes an F-shaped plate, the F-shaped plate includes a bottom step plate, two parallel kick plate A are fixed vertically on one side of the step plate, the width of the kick plate A is equal to the width of the step plate, and the kick plate B is inserted between the two kick plate A; an outward boss is arranged on the upper part of the kick plate B, and a groove matched with the boss is arranged on the bottom surface of the end of the step plate away from the kick plate A, the step plate and the kick plate B are connected together through the boss and the groove, and the upper surfaces of the step plate and the kick plate B are flush after being connected; the upper and lower ends of the two ends of the inner kick plate A are symmetrically provided with annular sleeves, and the U-shaped anchor pins can be inserted into the annular sleeves, and the adjacent F-shaped plates are connected together through the U-shaped anchor pins inserted into the annular sleeves; a plurality of round holes are uniformly arranged on the step plate close to the kick plate A along the width direction of the step plate, and the L-shaped anchor pins can be inserted into the round holes.

[0010] Preferably, the kick plate B is provided with a scale line.

[0011] Preferably, the surfaces of the F-shaped plate, the kick plate A and the kick plate B are coated with an anti-sticking coating.

[0012] Preferably, the height of the kick plate A is 20 cm, and the spacing between the two kick plate A is 10 mm.

[0013] Preferably, the thickness of the kick plate B is 1-2 mm less than the spacing between the two kick plate A.

[0014] The application provides a modular, reusable and quickly disassembled support mold, which realizes the stability of the layered backfill retaining step through the step lap joint structure, improves the construction efficiency and quality, and reduces the material loss rate. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the assembly structure of the embodiment;

[0016] Figure 2 It is a schematic diagram of the assembly structure of the F-shaped plate and the kick plate B of the embodiment;

[0017] Figure 3 It is a schematic diagram of the splicing structure of the F-shaped plate of the embodiment;

[0018] Figure 4 It is a schematic diagram of the F-shaped plate structure of the embodiment;

[0019] Figure 5 It is a schematic diagram of the kick plate B structure of the embodiment;

[0020] Figure 6 It is a schematic diagram of the U-shaped anchor pin structure of the embodiment;

[0021] Figure 7 It is a schematic diagram of the L-shaped anchor pin structure of the embodiment.

[0022] In the figure, 1 is a step plate, 2 is a round hole, 3 is a kick panel A, 4 is a ring sleeve, 5 is a groove, 6 is a kick panel B, 7 is a scale line, 8 is a boss, 9 is an L-shaped anchor nail, and 10 is a U-shaped anchor pin. DETAILED DESCRIPTION

[0023] To make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application.

[0024] The present embodiment comprises F-shaped plates, and each F-shaped plate comprises a bottom step plate 1, which can be made of lightweight aluminum alloy material with a thickness of 8 mm. Each step plate 1 has a length of 50-80 cm and a width of 30-100 cm. Two parallel kick panels A 3 are welded to one side of the step plate 1 perpendicularly to the step plate 1. The width of the kick panel A 3 is equal to the width of the step plate 1, and the distance between the two kick panels A 3 is preferably about 10 mm. The height of the kick panel A 3 can be set to 20 cm. A kick panel B 6 is inserted between the two kick panels A 3. The kick panel B 6 can also be made of lightweight aluminum alloy material. To facilitate insertion, the thickness of the kick panel B 6 is preferably 8 mm, which is slightly smaller than the distance between the two kick panels A 3.

[0025] A boss 8 is provided on the upper part of the kick panel B 6, which serves to overlap the step plate 1. A groove 5 matching the boss 8 is provided on the bottom surface of the end of the step plate 1 away from the kick panel A 3. The kick panel B 6 and the step plate 1 above and below are connected together through the boss 8 and the groove 5. The boss 8 of the kick panel B 6 below can be placed in the groove 5 of the step plate 1 above. After the step plate 1 and the kick panel B 6 are connected, the upper surfaces are flush, i.e., the upper surface of the step plate 1 above and the upper surface of the kick panel B 6 below are located on the same horizontal plane.

[0026] Ring sleeves 4 are symmetrically provided on the left and right ends of the kick panel A 3 on the inner side. U-shaped anchor pins 10 can be inserted into the ring sleeves 4 on the upper and lower sides. The F-shaped plates on the left and right sides can be connected together through the U-shaped anchor pins 10 inserted into the ring sleeves 4. Several F-shaped plates can be spliced together through the U-shaped anchor pins 10.

[0027] A plurality of round holes 2 are uniformly provided on the step plate 1 along the width direction of the step plate 1. The round holes 2 are close to the kick panel A 3 on the inner side. L-shaped anchor nails 9 can be inserted downward into the round holes 2. The L-shaped anchor nails 9 pass through the round holes 2 of the step plate 1 and penetrate into the backfill material below the step plate 1, thereby anchoring and fixing the step plate 1.

[0028] Preferably, the surfaces of the F-shaped plate, the kick plate A3 and the kick plate B6 are coated with an anti-sticking coating. To facilitate control of the backfill thickness, preferably, a scale line 7 is provided on the kick plate B6, and the distance between the upper and lower scale lines 7 is set to 50-100 mm, which can be adjusted according to the specific construction briefing requirements. The scale line 7 is generally painted, and the distance between the adjacent two scale lines 7 on the kick plate B6 is sprayed, so as to facilitate control of the backfill thickness through the scale line 7.

[0029] In use, the first layer of backfill in the groove is compacted to pass the detection, and the end of the backfill material is cut to the same height as the groove bottom by artificial, and the surface of the groove bottom and the retaining step is ensured to be flat. First, a F-shaped plate is laid on the groove bottom, so that the kick plate A3 of the step plate 1 is tightly attached to the retaining step surface of the first layer of backfill, and the L-shaped anchor nail 9 is passed through the round hole 2 of the F-shaped plate and is tightly nailed. Then, the second F-shaped plate is tightly attached and spliced with the first F-shaped plate, and the L-shaped anchor nail 9 is used to fix the second F-shaped plate, and then the U-shaped anchor pin 10 is used to pass through the annular sleeve 4 of the adjacent two F-shaped plates to connect the two F-shaped plates together, and other F-shaped plates are installed in the same way, and the construction is repeated until completion. Finally, the kick plate B6 is inserted into the gap between the two kick plates A3 in the F-shaped plate, and then the first layer of retaining step support mold assembly is completed. After the first layer of retaining step support mold assembly is completed, the second layer of backfill can be carried out, and the construction process of the backfill and the end cutting is the same as that of the first layer, which will not be described here. When the end cutting of the second step retaining step is carried out, the length of the F-shaped plate is first measured, and the distance from the first layer of retaining step kick plate B6 to the F-shaped plate length of the second layer of backfill is measured, the cross section of the retaining step is cut, and the second step retaining step is formed. After the second step retaining step is formed, the groove 5 at the bottom of the F-shaped plate is aligned with the boss 8 on the kick plate B6 in the first step to install and lay the F-shaped plate, and then other F-shaped plates and kick plates B6 are laid in turn and fixed firmly. The retaining step is cut layer by layer in the above-mentioned manner, and the construction is repeated until completion. After the retaining mold is used up, the mold surface and the gap are cleaned, and the mold is ready for use next time.

[0030] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, and not to limit them; those skilled in the art should understand that the technical solutions described in the above examples can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A trench layered backfilling and stepped support mold, characterized in that: The F-type plate includes a bottom step plate (1), with two parallel kick plates A (3) vertically fixed to one side of the step plate (1). The width of the kick plates A (3) is equal to the width of the step plate (1), and a kick plate B (6) is inserted between the two kick plates A (3). An outward protrusion (8) is provided on the upper part of the kick plate B (6), and a groove (5) matching the protrusion (8) is provided on the bottom surface of the end of the step plate (1) away from the kick plate A (3). The upper and lower adjacent step plates (1) and kick plates B (6) are connected by the protrusion (8) and The grooves (5) are connected together, and the upper surfaces of the step plate (1) and the kick plate B (6) are flush after connection; the inner kick plate A (3) is provided with annular sleeves (4) on both the left and right ends, and U-shaped anchor pins (10) can be inserted into the upper and lower annular sleeves (4); the adjacent F-type plates on the left and right are connected together by U-shaped anchor pins (10) inserted into the annular sleeves (4); a number of round holes (2) are evenly provided on the step plate (1) near the kick plate A (3) along the width direction of the step plate (1), and L-shaped anchor nails (9) can be inserted downward into the round holes (2).

2. The trench layered backfilling and stepped support mold according to claim 1, characterized in that: The kick panel B (6) is provided with scale lines (7).

3. The trench layered backfilling and stepped support mold according to claim 1, characterized in that: The surfaces of the F-type plate, kick plate A (3) and kick plate B (6) are all coated with an anti-stick coating.

4. The trench layered backfilling and stepped support mold according to claim 1, characterized in that: The height of the kick panel A (3) is 20cm, and the distance between the two kick panels A (3) is 10mm.

5. The trench layered backfilling and stepped support mold according to claim 4, characterized in that: The thickness of the kick panel B (6) is 1-2 mm smaller than the distance between the two kick panels A (3).

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