Foundation pit wall concrete water spraying maintenance device

Abstract

The utility model belongs to the field of foundation pit construction, and particularly relates to a foundation pit wall concrete water spraying maintenance device which comprises a high-pressure water pipe and further comprises a triangular support, a horizontal base plate is arranged at the bottom end of a supporting rod of the triangular support, a supporting rod is outwards arranged at the bottom of the supporting rod, and lifting trundles are installed on the supporting rod. Two supporting plates are symmetrically fixed to the upper portion of the middle rod, a fixing shaft is arranged between the two supporting plates and sleeved with a sleeve, an arc-shaped plate is fixed to the middle of the sleeve, inverted-U-shaped plates are fixed to the two sides of the sleeve upwards, threaded holes are formed in upper plates of the inverted-U-shaped plates, compression bolts are connected into the threaded holes, and inverted-U-shaped pressing plates are fixed to the lower ends of the compression bolts. Pressing rollers are respectively fixed at the bottom ends of the two sides of the inverted U-shaped pressing plate and are pressed on the spray head. By means of the device, workers can easily complete original heavy labor, the workers only need to push the support and rotate the spray head, the labor intensity of the workers is greatly reduced, and the construction efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of foundation pit construction, and specifically relates to a concrete spraying curing device for foundation pit walls. Background Technology

[0002] After the shotcrete application of the mesh on the sidewalls of the foundation pit is completed, water curing should be carried out to allow the cement slurry to harden and solidify as quickly as possible, forming a solid supporting structure. This also reduces the occurrence of cracks and peeling of the shotcrete surface. Currently, on construction sites, workers mostly use handheld high-pressure water nozzles for water curing. During the curing process, workers need to manually adjust the up and down angle of the nozzles. Because the pressure generated by the water spray requires a lot of strength to stabilize, water curing work is physically demanding, often causing workers to experience arm pain. This is not only inefficient, but the long-term repetitive high-intensity labor also leads to worker fatigue and occupational diseases. Summary of the Invention

[0003] The problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a water spraying curing device for foundation pit wall concrete.

[0004] This invention is achieved through the following technical solution:

[0005] A concrete spraying curing device for foundation pit walls includes a high-pressure water pipe and a triangular support. The triangular support includes a central rod and three supporting rods. Each supporting rod has a horizontal pad at its bottom end and a support rod extending outward from its bottom. Lifting casters are mounted on the support rods. Two support plates are symmetrically fixed to the upper part of the central rod, and a fixed shaft is provided between the two support plates. A sleeve is fitted onto the fixed shaft, and the sleeve can rotate around the fixed shaft. An arc-shaped plate is fixed in the middle of the sleeve, and the nozzle of the high-pressure water pipe is placed inside the arc-shaped plate. An inverted U-shaped plate is fixed upward on both sides of the sleeve. The upper plate of the inverted U-shaped plate has a threaded hole, and a clamping bolt is threaded into the threaded hole. An inverted U-shaped pressure plate is fixed to the lower end of the clamping bolt. Pressure rollers are fixed to the bottom ends of both sides of the inverted U-shaped pressure plate, and the pressure rollers press against the nozzle.

[0006] Preferably, a reinforcing rod is fixedly connected between the bottom of the middle rod and the support rod.

[0007] Preferably, the pressure roller is provided with a rubber layer around its periphery.

[0008] Preferably, the length of the arc-shaped plate is 20-30cm.

[0009] The concrete spraying curing device for foundation pit walls of the present invention allows workers to easily complete the originally heavy labor. Workers only need to push the triangular bracket and rotate the spray head, which greatly reduces the labor intensity of workers and improves construction efficiency. Attached Figure Description

[0010] Figure 1This is a schematic diagram of the overall structure of this embodiment;

[0011] Figure 2 for Figure 1 Another structural diagram;

[0012] Figure 3 This is a schematic diagram of the triangular support structure in this embodiment;

[0013] Figure 4 This is a schematic diagram of the sleeve structure in this embodiment;

[0014] Figure 5 This is a schematic diagram of the side structure of the sleeve in this embodiment.

[0015] In the diagram, 1 is a high-pressure water pipe, 2 is a triangular bracket, 3 is a center rod, 4 is a support rod, 5 is a horizontal pad, 6 is a support rod, 7 is a lifting caster, 8 is a support plate, 9 is a fixed shaft, 10 is a sleeve, 11 is an arc plate, 12 is a nozzle, 13 is an inverted U-shaped plate, 14 is a clamping bolt, 15 is an inverted U-shaped pressure plate, 16 is a pressure roller, and 17 is a reinforcing rod. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0017] This embodiment includes a high-pressure water pipe 1, with a nozzle 12 at its front end. The high-pressure water pipe 1 is connected to a water pump at its rear for spraying water for maintenance. The high-pressure water pipe 1 is a common feature in spraying water for maintenance and will not be described in detail here. This embodiment also includes a triangular support 2, which includes a central rod 3 and three support rods 4. The upper ends of the three support rods 4 are fixed to the upper part of the central rod 3, and the bottom ends of each of the three support rods 4 are provided with horizontal pads 5. The horizontal pads 5 are used to securely place the triangular support 2 on the ground, and a rubber pad may be provided at the bottom of the horizontal pads 5. To make the structure of the triangular support 2 more stable, it is preferable to fix reinforcing rods 17 between the bottom of the central rod 3 and the three support rods 4.

[0018] Support rods 6 are provided outwards from the bottom of each support rod 4. These support rods 6 are horizontal and relatively short, approximately 8-12cm in length. Adjustable casters 7 are installed on the support rods 6. Adjustable casters 7 are common components, and their structure and principle will not be described in detail here. When the pedal of the adjustable caster 7 is depressed, the support foot of the adjustable caster 7 leaves the ground, and the wheel touches the ground. At this time, the bottom of the wheel is lower than the bottom of the horizontal pad 5, and the triangular bracket 2 is supported by the wheel of the adjustable caster 7, allowing it to be pushed. When the pedal of the adjustable caster 7 is lifted, the support foot of the adjustable caster 7 touches the ground, and the wheel leaves the ground. The bottom of the wheel of the adjustable caster 7 is flush with the horizontal pad 5. The triangular bracket 2 is supported by both the horizontal pad 5 and the support foot of the adjustable caster 7, and at this time, the triangular bracket 2 cannot be pushed.

[0019] Two support plates 8 are symmetrically fixed to the upper part of the middle rod 3 of the triangular bracket 2. The support plates 8 are vertically upward, and a fixed shaft 9 is provided between the two support plates 8. A sleeve 10 is sleeved on the fixed shaft 9, and the sleeve 10 can rotate around the fixed shaft 9. An arc-shaped plate 11 is fixed in the middle of the sleeve 10. The nozzle 12 of the high-pressure water pipe 1 is placed in the arc-shaped plate 11. The arc-shaped plate 11 is perpendicular to the sleeve 10, and the length of the arc-shaped plate 11 is less than the length of the nozzle 12 of the high-pressure water pipe 1. Preferably, the length of the arc-shaped plate 11 is 20-30cm. An inverted U-shaped plate 13 is fixed upward on both sides of the sleeve 10. The arc-shaped plate 11 is located between the two side plates of the inverted U-shaped plate 13. The upper plate of the inverted U-shaped plate 13 has a threaded hole. A clamping bolt 14 is threaded downward in the threaded hole. An inverted U-shaped pressure plate 15 is fixed to the lower end of the clamping bolt 14. The inverted U-shaped pressure plate 15 is located inside the inverted U-shaped plate 13. Pressure rollers 16 are fixed to the bottom ends of the two sides of the inverted U-shaped pressure plate 15. The pressure rollers 16 are parallel to the arc plate 11, and the two pressure rollers 16 can press on the nozzle 12. The nozzle 12 is squeezed into the arc plate 11 by the pressure rollers 16. In order to prevent the pressure rollers 16 from damaging the nozzle 12, it is preferable that the pressure rollers 16 are provided with a rubber layer all around.

[0020] During construction, place the device in front of the foundation pit wall to be cured, place the nozzle 12 of the high-pressure water pipe 1 inside the arc plate 11, and then tighten the clamping bolt 14 downwards to make the two pressure rollers 16 press the nozzle 12 tightly. Then turn on the water pump to spray water for curing. When spraying water, the worker only needs to lift or press the rear end of the nozzle 12 upwards or downwards to adjust the up and down spray angle of the nozzle 12. When pressing the rear end of the nozzle 12 downwards, the sleeve 10 rotates around the fixed shaft 9, and the arc plate 11 rotates together. The front end of the nozzle 12 rotates upwards, so water can be sprayed obliquely upwards. When lifting the rear end of the nozzle 12 upwards, the front end of the nozzle 12 rotates downwards, so water can be sprayed obliquely downwards. When it is necessary to change the spray position, step on the pedal of the lifting caster 7 and push the triangular bracket 2. After reaching the spray position, lift the pedal of the lifting caster 7 again. At this time, the horizontal pad 5 of the triangular bracket 2 and the support foot of the lifting caster 7 are on the ground at the same time, and the triangular bracket 2 cannot be moved.

[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; those skilled in the art should understand that modifications can still be made to the technical solutions described in the above embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A concrete spraying curing device for foundation pit walls, comprising a high-pressure water pipe (1), characterized in that: It also includes a triangular bracket (2), which includes a central rod (3) and three support rods (4). The bottom of each support rod (4) is provided with a horizontal pad (5), and the bottom of each support rod (4) is provided with a support rod (6) extending outward. A lifting caster (7) is installed on the support rod (6). Two support plates (8) are symmetrically fixed on the upper part of the central rod (3). A fixed shaft (9) is provided between the two support plates (8). A sleeve (10) is sleeved on the fixed shaft (9), and the sleeve (10) can rotate around the fixed shaft (9). An arc-shaped plate (11) is fixed in the middle of the sleeve (10). The nozzle (12) of the high-pressure water pipe (1) is placed inside the arc-shaped plate (11). An inverted U-shaped plate (13) is fixed upward on both sides of the sleeve (10). A threaded hole is provided on the upper plate of the inverted U-shaped plate (13). A clamping bolt (14) is threaded into the threaded hole. An inverted U-shaped pressure plate (15) is fixed at the lower end of the clamping bolt (14). Pressure rollers (16) are fixed at the bottom ends of both sides of the inverted U-shaped pressure plate (15). The pressure rollers (16) press on the nozzle (12).

2. The concrete spraying curing device for foundation pit walls according to claim 1, characterized in that: A reinforcing rod (17) is fixedly connected between the bottom of the middle rod (3) and the support rod (4).

3. The concrete spraying curing device for foundation pit walls according to claim 1, characterized in that: The pressure roller (16) is covered with a rubber layer.

4. The concrete spraying curing device for foundation pit walls according to claim 1, characterized in that: The arc-shaped plate (11) is 20-30cm long.

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