Foundation pit shotcrete anchor surface flatness control device

Abstract

The utility model discloses a foundation pit shotcrete anchor surface flatness control device which comprises at least one pair of supporting bases arranged in parallel along the slope surface of a foundation pit, sliding rails are arranged on the supporting bases, sliding seats are arranged on the sliding rails, a transverse mounting plate is detachably connected between the pair of sliding seats, and the transverse mounting plate is arranged on the slope surface of the foundation pit. An adjustable scraping plate assembly is connected below the transverse mounting plate and is provided with a scraping plate facing the shotcrete anchor surface; and a driving assembly connected with the sliding seat and / or the transverse mounting plate is also arranged above the slope surface of the foundation pit. According to the foundation pit shotcrete anchor surface flatness control device, the scraping plate is arranged along the foundation pit side slope shotcrete anchor surface, so that the shotcrete anchor surface can be scraped in time after shotcrete is shotcrete, and the flatness of the shotcrete anchor surface is ensured; and the whole control device can automatically control the scraping plate to move, the labor amount of constructors is reduced, and the construction efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete construction, in particular to a foundation pit spray anchor surface flatness control device. Background Art

[0002] With the excavation of foundation pit, shotcrete is used for the soil protection between bored piles. Usually, φ8@150x150mm steel mesh is used in combination with shotcrete to form a retaining wall (sprayed anchor surface). The thickness of the retaining wall is about 100mm. In the process of using shotcrete to form the retaining wall, the flatness of the retaining wall needs to be adjusted to facilitate the construction of subsequent layer structures.

[0003] In the prior art, the scraping operation is usually performed manually by holding a scraper. Due to the large slope area of ​​the foundation pit, this operation method is time-consuming and labor-intensive, and it is inconvenient for personnel to move up and down. Leveling machines are also used for leveling, but for inclined slopes, leveling machines are not suitable for use, and their movement and control are not convenient. Summary of the invention

[0004] The utility model aims to provide a foundation pit spray anchor surface flatness control device in view of the problems existing in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A device for controlling the flatness of a foundation pit sprayed anchor surface comprises a support base arranged along the foundation pit slope, the support base is at least a pair of support bases arranged in parallel, a slide rail is provided on the support base, a slide seat is provided on the slide rail, a transverse mounting plate is detachably connected between the pair of slide seats, an adjustable scraper assembly is connected below the transverse mounting plate, the scraper assembly is provided with a scraper facing the sprayed anchor surface; a drive assembly connected to the slide seat and / or the transverse mounting plate is also provided above the foundation pit slope.

[0007] The foundation pit shotcrete surface flatness control device arranges the scraper along the shotcrete surface of the foundation pit slope, so that the scraper can be promptly scraped and leveled after the concrete is sprayed, thereby ensuring the flatness of the shotcrete surface; and the entire control device can automatically control the movement of the scraper, thereby reducing the workload of construction workers and improving construction efficiency.

[0008] The setting of the slide rail, in conjunction with the driving assembly, enables the slide seat to slide up and down along it, thereby driving the scraper to move from top to bottom in the area where the concrete is located to scrape the concrete flat. After scraping, it can also return to the upper initial position. In some occasions, multiple layers of scraping can be repeated back and forth to ensure both the flatness and compactness of the concrete.

[0009] Furthermore, the scraper assembly includes a scraper mounting seat, which is detachably connected to the scraper. The scraper mounting seat is connected to the transverse mounting plate via at least one adjustable connecting mechanism and a plurality of guide mechanisms, and the distance between the two can be adjusted when necessary, thereby adjusting the height position of the scraper.

[0010] Furthermore, a scraper connecting portion is provided above the scraper, and an inclined or arc-shaped scraping portion is provided below, and a connecting groove is provided in the middle of the scraper connecting portion; the scraper mounting seat has a pair of side connecting plates and a middle plug-in plate, and the plug-in plate is inserted in the connecting groove, and the side connecting plates are located on both sides of the scraper connecting portion and are connected by a number of fasteners. Through this connection method, the scraper can be better connected and fixed to the scraper mounting seat.

[0011] Furthermore, the adjustable connection mechanism includes a first connection sleeve connected to the scraper mounting seat, and an adjusting bolt connected to the first connection sleeve, wherein the adjusting bolt passes through the transverse mounting plate and is connected to the first connection sleeve. The height position of the scraper mounting seat is adjusted by the depth of screwing the adjusting bolt.

[0012] Furthermore, the guiding mechanism includes a second connecting sleeve connected to the scraper mounting seat, and a guide rod connected to the second connecting sleeve. One end of the guide rod is connected to the transverse mounting plate, and the other end is sleeved in the second connecting sleeve and is provided with a spring. While playing the role of connection and guiding, it also has buffering and vibration reduction effects.

[0013] Furthermore, a connecting ear plate is provided above the slide seat, and folded edges are provided at both ends of the transverse mounting plate, and the folded edges are connected to the connecting ear plate by bolts.

[0014] Furthermore, the support base includes an inclined support plate, and an upper base and a lower base arranged at the upper and lower ends of the inclined support plate, the upper base is arranged on a platform above the foundation pit slope, the lower base is arranged on a platform below the foundation pit slope, and the slide rail is arranged on the inclined support plate.

[0015] Furthermore, the slide seat and / or the transverse mounting plate are respectively provided with buckles; the driving assembly is a winch, and the winch rope of the winch is connected to the buckles.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows: 1. The flatness control device for the foundation pit sprayed anchor surface can promptly scrape and flatten the surface after spraying concrete by setting the scraper along the sprayed anchor surface on the foundation pit slope, thereby ensuring the flatness of the sprayed anchor surface; and the entire control device can automatically control the movement of the scraper, thereby reducing the labor of construction workers and improving the construction efficiency; 2. The support base can be directly erected on the inclined surface of the foundation pit slope as a supporting component, supporting the rail and the transverse mounting plate, so that the transverse support plate, that is, the scraper assembly, can span the surface where the concrete is located; the arrangement of the drive assembly and the slide rail can allow the slide seat to move along the inclined surface of the foundation pit slope. It slides up and down, thereby driving the scraper to move from top to bottom in the area where the concrete is located to scrape the concrete flat. After completing the scraping, it can return to the initial position above. In some cases, it can also repeatedly scrape back and forth for multiple layers to ensure both the flatness and compactness of the concrete. 3. The scraper assembly can be conveniently suspended and installed under the horizontal mounting plate. By adjusting the distance between the scraper assembly and the horizontal mounting plate, the distance between the scraper and the slope can be appropriately adjusted, that is, the distance can be adjusted according to the thickness of the sprayed concrete, so that the device can cope with the scraping operation of concrete with various laying thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the planar structure of a foundation pit shotcrete surface flatness control device of the utility model;

[0018] Figure 2 It is a side schematic diagram of a foundation pit shotcrete surface flatness control device of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the adjustable connection of the scraper assembly of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the guide connection of the scraper assembly of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the connection between the transverse mounting plate and the slide seat of the utility model;

[0022] Figure 6 It is a schematic diagram of the connection between the winch and the slide seat of the utility model;

[0023] In the figure: 1. support base; 101. inclined support plate; 102. upper base; 103. lower base; 2. slide rail; 3. slide seat; 4. horizontal mounting plate; 5. scraper; 501. connecting groove; 6. buckle; 7. winch; 8. winch rope; 9. scraper mounting seat; 901. plug-in plate; 902. side connecting plate; 10. first connecting sleeve; 11. adjusting bolt; 12. second connecting sleeve; 13. guide rod; 14. spring; 15. connecting ear plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] like Figure 1 and Figure 2 As shown, a device for controlling the flatness of a foundation pit sprayed anchor surface comprises a support base 1 arranged along the foundation pit slope, the support base 1 is at least a pair of parallelly arranged support bases, a slide rail 2 is arranged on the support base 1, a slide seat 3 is arranged on the slide rail 2, a transverse mounting plate 4 is detachably connected between the pair of slide seats 3, an adjustable scraper assembly is connected below the transverse mounting plate 4, and the scraper assembly is provided with a scraper 5 facing the sprayed anchor surface; a driving assembly connected to the slide seat 3 and / or the transverse mounting plate 4 is also provided above the foundation pit slope.

[0027] The foundation pit sprayed anchor surface flatness control device can promptly scrape and flatten the sprayed anchor surface after spraying concrete by setting the scraper 5 along the foundation pit slope sprayed anchor surface to ensure the flatness of the sprayed anchor surface; and the entire control device can automatically control the movement of the scraper, thereby reducing the workload of construction workers and increasing construction efficiency.

[0028] The support base 1 can be directly erected on the inclined surface of the foundation pit slope as a supporting component to support the slide rail 2 and the transverse mounting plate 4, so that the transverse mounting plate 4, that is, the scraper assembly can span the surface where the concrete is located, thereby covering the area where the sprayed concrete is located for subsequent scraping operations.

[0029] The setting of the slide rail 2, in conjunction with the driving assembly, enables the slide seat 3 to slide up and down along it, thereby driving the scraper 5 to move from top to bottom in the area where the concrete is located to scrape the concrete flat. After scraping, it can also return to the upper initial position. In some occasions, multiple layers of scraping can be repeated back and forth to ensure both the flatness and compactness of the concrete.

[0030] The scraper assembly can be conveniently suspended and installed under the transverse mounting plate 4. By adjusting the distance between the scraper assembly and the transverse mounting plate, the distance between the scraper and the slope can be appropriately adjusted, that is, the distance can be adjusted according to the thickness of the sprayed concrete, so that the device can handle the scraping operation of concrete with various laying thicknesses. This adjustment of the distance between the scraper assembly and the transverse mounting plate belongs to a small range adjustment. If a large range adjustment is required, it can be adjusted from the support height of the support base and the height position of the transverse mounting plate connected to the slide, such as adding a pad to raise the height.

[0031] For large-scale foundation pit slope protection, the construction is carried out in sections and blocks. It is only necessary to set up the support base in each section or block of shotcrete construction area so that the transverse mounting rod can span the area. After completing the construction of one area, the support base can be moved to the next area for continued use.

[0032] Further, combined with Figure 3 As shown, the scraper assembly includes a scraper mounting seat 9, and the scraper mounting seat 9 is detachably connected to the scraper 5. The scraper mounting seat 9 is connected to the transverse mounting plate 4 through at least one adjustable connecting mechanism and a plurality of guiding mechanisms.

[0033] The scraper mounting seat 9 is connected to the transverse mounting plate through the adjustable mechanism and the guide mechanism, and the distance between the two can be adjusted when necessary, thereby adjusting the height position of the scraper.

[0034] In some embodiments, the scraper 5 is a polyurethane scraper, the scraper mounting seat 9 is a metal seat, the scraper 5 is provided with a scraper connecting portion on the top, and an inclined or arc-shaped scraping portion on the bottom, and a connecting groove 501 is provided in the middle of the scraper connecting portion; the scraper mounting seat 9 has a pair of side connecting plates 902 and a middle plug-in plate 901, the plug-in plate 901 is inserted in the connecting groove 501, and the side connecting plates 902 are located on both sides of the scraper connecting portion and are connected by a number of fasteners.

[0035] The thickness of the scraper connecting part is greater than the thickness of the scraper part, which is beneficial for the scraper connecting plate to bear force and for the scraper part to scrape the concrete flat.

[0036] The matching arrangement of the connecting groove 501 and the plug-in plate 901, coupled with the clamping of the side connecting plate 902, enables the scraper 5 to be better connected and fixed to the scraper mounting seat. The fasteners are bolts or pins, which can fix these plates together with the scraper connecting plate.

[0037] Furthermore, the adjustable connection mechanism includes a first connection sleeve 10 connected to the scraper mounting seat 9 , and an adjusting bolt 11 connected to the first connection sleeve 10 , and the adjusting bolt 11 passes through the transverse mounting plate 4 and is connected to the first connection sleeve 10 .

[0038] The first connecting sleeve 10 is fixedly arranged on the scraper mounting seat, and is provided with an internal thread, which can be screwed with the adjusting bolt 11, and the height position of the scraper mounting seat 9 can be adjusted according to the depth of the adjusting bolt 11 being screwed in. This structure is relatively simple and easy to install and use. In some embodiments, the scraper mounting seat can also be connected with a component such as a telescopic rod.

[0039] Further, such as Figure 4 As shown, the guide mechanism includes a second connecting sleeve 12 connected to the scraper mounting seat 9, and a guide rod 13 connected to the second connecting sleeve 12, one end of the guide rod 13 is connected to the transverse mounting plate 4, and the other end is sleeved in the second connecting sleeve 12 and is provided with a spring 14.

[0040] The second connecting sleeve 12 is also fixedly arranged on the scraper mounting seat 9. The guide rod 13 can play a connecting and guiding role after being connected thereto. The spring 14 arranged on the guide rod 13 can also play a buffering and vibration reduction role.

[0041] Furthermore, a connecting ear plate is provided above the slide seat, and folded edges are provided at both ends of the transverse mounting plate, and the folded edges are connected to the connecting ear plate by bolts.

[0042] The connecting ear plate can be arranged in the middle of the slide seat, so that both sides of the slide seat can be connected to the transverse mounting plate. The connecting ear plate is connected by the folded edge, so that the end of the transverse mounting plate can be supported on the slide seat, further improving the connection and installation stability of the two. The support height can also be adjusted by adding or removing gaskets between the transverse mounting plate and the slide seat.

[0043] Furthermore, the support base 1 includes an inclined support plate 101, and an upper base 102 and a lower base 103 arranged at the upper and lower ends of the inclined support plate 101, the upper base 102 is arranged on a platform above the foundation pit slope, the lower base 103 is arranged on a platform below the foundation pit slope, and the slide rail 2 is arranged on the inclined support plate 101.

[0044] Through the arrangement of the above structure, the support base 1 is similar to a zigzag structure. The support of the upper base 102 and the lower base 103 allows the inclined support plate 101 to be arranged along the sprayed anchor surface of the foundation pit with a distance between it and the foundation pit, and the slope surface of the foundation pit slope is not needed to support the inclined support plate.

[0045] When the position needs to be changed and the support base 1 needs to be moved, the support base 1 can be manually translated or moved by hoisting. In some embodiments, the bottoms of the upper base 102 and the lower base 103 are respectively provided with moving wheels, which can be used to move when needed, which is simpler and more convenient. The flatness control device can be moved as a whole, or the horizontal mounting plate can be separated from the slide seat and moved separately before being assembled.

[0046] Furthermore, a buckle 6 is respectively provided on the slide seat 3 and / or the transverse mounting plate 4 ; the driving component is a winch 7 , and a winch rope 8 of the winch 7 is connected to the buckle 6 .

[0047] The hoist 7 can be connected to the transverse mounting plate 4, or connected to the slide 3 (such as Figure 6 As shown), either way can drive the scraper assembly to move up and down along the foundation pit slope. If the hoist rope of the hoist is connected to the slide seat, the hoist can be set on the upper base, so that the hoist does not need to be moved separately during the moving process.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foundation pit shotcrete surface flatness control device, characterized in that: It includes a support base arranged along the slope of the foundation pit, the support base is at least a pair of parallel arrangements, a slide rail is provided on the support base, a slide seat is provided on the slide rail, a transverse mounting plate is detachably connected between the pair of slide seats, an adjustable scraper assembly is connected below the transverse mounting plate, the scraper assembly is provided with a scraper facing the sprayed anchor surface; a drive assembly connected to the slide seat and / or the transverse mounting plate is also provided above the slope of the foundation pit.

2. The foundation pit shotcrete surface flatness control device according to claim 1 is characterized in that: The scraper assembly comprises a scraper mounting seat, which is detachably connected to the scraper. The scraper mounting seat is connected to the transverse mounting plate through at least one adjustable connecting mechanism and a plurality of guiding mechanisms.

3. The device for controlling the flatness of the foundation pit sprayed anchor surface according to claim 2, characterized in that: A scraper connecting part is provided above the scraper, and an inclined or arc-shaped scraping part is provided below. A connecting groove is provided in the middle of the scraper connecting part; the scraper mounting seat has a pair of side connecting plates and a plug-in plate in the middle, the plug-in plate is plugged into the connecting groove, and the side connecting plates are located on both sides of the scraper connecting part and are connected by a number of fasteners.

4. The device for controlling the flatness of the foundation pit sprayed anchor surface according to claim 2, characterized in that: The adjustable connection mechanism comprises a first connection sleeve connected to the scraper mounting seat, and an adjusting bolt connected to the first connection sleeve, wherein the adjusting bolt passes through the transverse mounting plate and is connected to the first connection sleeve.

5. The device for controlling the flatness of the foundation pit sprayed anchor surface according to claim 2, characterized in that: The guide mechanism includes a second connecting sleeve connected to the scraper mounting seat, and a guide rod connected to the second connecting sleeve. One end of the guide rod is connected to the transverse mounting plate, and the other end is sleeved in the second connecting sleeve and is provided with a spring.

6. The foundation pit shotcrete surface flatness control device according to claim 1, characterized in that: A connecting ear plate is provided above the slide seat, and folded edges are respectively provided at both ends of the transverse mounting plate, and the folded edges are connected to the connecting ear plate through bolts.

7. The foundation pit shotcrete surface flatness control device according to claim 1, characterized in that: The support base includes an inclined support plate, and an upper base and a lower base arranged at the upper and lower ends of the inclined support plate. The upper base is arranged on a platform above the foundation pit slope, and the lower base is arranged on a platform below the foundation pit slope. The slide rail is arranged on the inclined support plate.

8. The foundation pit shotcrete surface flatness control device according to claim 1, characterized in that: The slide seat and / or the transverse mounting plate are respectively provided with buckles; the driving assembly is a winch, and the winch rope of the winch is connected to the buckles.

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