Pile foundation reinforcement cage lifting auxiliary device

Abstract

A center hole is formed in the middle of a platform, a plurality of guide rails are evenly arranged on the upper surface of the platform with the circle center of the center hole as the center, a plurality of limiting assemblies are arranged and matched with the corresponding guide rails in a sliding mode, and sliding plates of the limiting assemblies are matched with the guide rails. Supporting rods are installed on the two sides of the upper surface of the sliding plate through bolts, a vertical plate is connected with the outer ends of the supporting rods through connecting grooves and bolts, arc-shaped guide plates are further arranged at the two ends of the outer side surface of the vertical plate through a plurality of connecting rods, and the middle of the vertical plate is matched with a sliding supporting plate. And the vertical plate is matched with the sliding supporting plate through the guide sleeve, when the position of the reinforcement cage needs to be finely adjusted or temporary descending stopping is needed due to other things, the reinforcement cage can be temporarily supported through the sliding supporting plate, temporary flameout of the crane can be achieved, the crane is prevented from being in a starting state all the time, and convenience is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pile foundation reinforcement cage lifting assistance, in particular to a pile foundation reinforcement cage lifting assistance device. Background Art

[0002] The main role of the steel cage is the same as the stress of the longitudinal steel bars of the column. It mainly plays a tensile role. The compressive strength of concrete is high but the tensile strength is very low. It plays a restraining role on the pile concrete so that it can withstand a certain axial tension. When constructing bridges, culverts or high-rise buildings, the foundation may be required to be piled according to requirements. The method is to use machine punching and water drilling, and the hole depth meets the design requirements, and then put the steel cage into the pile hole, and then insert the guide tube for concrete pouring.

[0003] The current installation of pile foundation reinforcement cages is generally achieved by cranes. When lowering or raising the reinforcement cages, the stability is poor and manual stabilization is required. The effect is not good and there are certain safety hazards. When lowering the reinforcement cages, if temporary adjustments are required or emergencies occur, they can only be suspended by cranes, and the cranes cannot be turned off, causing inconvenience. Therefore, an improved technology is urgently needed to solve this problem in the prior art. Utility Model Content

[0004] The purpose of the utility model is to provide a pile foundation steel cage lifting auxiliary device, which ensures the stability of the pile foundation steel cage's descent through the arc-shaped guide plates of multiple limit assemblies, greatly improves the placement accuracy of the pile foundation steel cage, and the vertical plate is matched with a sliding support plate through a guide sleeve. By setting the sliding support plate, when the position of the steel cage needs to be fine-tuned or other matters need to temporarily stop lowering, the steel cage can be temporarily supported by the sliding support plate, which can realize temporary shutdown of the crane to avoid the crane being in the starting state all the time, and the convenience is greatly improved to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pile foundation reinforcement cage lifting auxiliary device, including a platform and a limit assembly;

[0006] A center hole is provided in the middle of the platform, and positioning screws are provided at four corners of the lower surface of the platform, and the positioning screws are connected with a positioning support plate, and an adjusting nut is provided on the upper surface of the positioning support plate, and the adjusting nut is threadedly matched with the positioning screw. A plurality of groups of guide rails are evenly provided on the upper surface of the platform with the center of the center hole as the center, and the guide rails are grouped in pairs and all face the center direction of the center hole. A lead screw is also provided above the platform and between the two guide rails, and the lead screw is connected with a lead screw seat, and the lead screw seat is connected to the platform;

[0007] The limit assembly has several and slides with corresponding guide rails. The limit assembly includes a slide plate, a slider, a fixed block, a support rod, a vertical plate, an arc guide plate and a sliding support plate. Slide plates are arranged on both sides of the lower surface of the slide, and the slide cooperates with the guide rail. A fixed block is arranged in the middle position of the lower surface of the slide, and the fixed block is provided with a screw pair nut, and the screw pair nut cooperates with the corresponding screw. Support rods are installed on both sides of the upper surface of the slide by bolts, connecting grooves are arranged at both ends of the vertical plate, and the vertical plate is connected to the outer end of the support rod by the connecting groove and bolts, and arc guide plates are also arranged at both ends of the outer surface of the vertical plate by several connecting rods, a sliding hole is opened in the middle position of the vertical plate, and a guide sleeve is arranged on the inner surface of the vertical plate and located at the sliding hole, and the sliding support plate slides with the guide sleeve and passes through the sliding hole of the vertical plate.

[0008] Preferably, the utility model provides a pile foundation reinforcement cage lifting auxiliary device, wherein both ends of the arc-shaped guide plate are arc-shaped structures.

[0009] Preferably, the utility model provides a pile foundation reinforcement cage lifting auxiliary device, wherein connecting plates are provided on both sides of one end of the connecting rod away from the arc-shaped guide plate, and the connecting plates are connected to the vertical plates by bolts.

[0010] Preferably, the utility model provides a pile foundation reinforcement cage lifting auxiliary device, wherein a limited push-pull plate is provided near one end of the sliding support plate.

[0011] Preferably, the utility model provides a pile foundation reinforcement cage lifting auxiliary device, wherein a square rod is provided at the outer end of the lead screw.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The arc-shaped guide plates of multiple limit assemblies ensure the stability of the pile foundation reinforcement cage when it is lowered, greatly improving the placement accuracy of the pile foundation reinforcement cage.

[0014] (2) Since the arc-shaped guide plate can move along the guide rail following the slide plate, it can be adjusted according to steel cages of different diameters, greatly improving the scope of application.

[0015] (3) The vertical plate is equipped with a sliding support plate through a guide sleeve. By setting the sliding support plate, when the position of the steel cage needs to be fine-tuned or other matters require that the lowering be temporarily stopped, the steel cage can be temporarily supported by the sliding support plate, which can realize the temporary shutdown of the crane and avoid the crane being in the starting state all the time, thereby greatly improving the convenience.

[0016] (4) The positioning screw at the bottom of the platform cooperates with the positioning support plate with adjustable height, so that the whole can be leveled according to different terrains, further improving the scope of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the top view structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0019] Figure 3 For attachment Figure 1 The enlarged structural diagram at the mark A in the middle;

[0020] Figure 4 It is a schematic diagram of the front view structure of the limit assembly;

[0021] Figure 5 It is a schematic diagram of the side structure of the limit assembly;

[0022] Figure 6 It is a top view schematic diagram of the working state of the utility model;

[0023] Figure 7 It is a side view schematic diagram of the working state of the utility model;

[0024] Figure 8 Schematic diagram of the state when the annular reinforcement of the steel cage is supported on the sliding support plate.

[0025] In the figure: platform 1, center hole 2, positioning screw 3, positioning support plate 4, adjusting nut 5, guide rail 6, lead screw 7, lead screw seat 8, slide plate 9, slide block 10, fixed block 11, support rod 12, vertical plate 13, arc guide plate 14, sliding support plate 15, lead screw pair nut 16, connecting groove 17, connecting rod 18, guide sleeve 19, connecting plate 20, limit push-pull plate 21, square rod 22. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of 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 them. Based on the embodiments of 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;

[0027] It should be noted that, in the description of the present invention, the terms "inside", "outside", "upper", "lower", "both sides", "one end", "the other end", "left" and "right" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0028] See also Figure 1-5 , the utility model provides a technical solution: a pile foundation reinforcement cage lifting auxiliary device, including a platform 1 and a limit assembly;

[0029] A center hole 2 is provided in the middle of the platform 1, and positioning screws 3 are provided at the four corners of the lower surface of the platform 1. The positioning screws 3 are matched with the positioning support plate 4, and an adjusting nut 5 is provided on the upper surface of the positioning support plate 4. The adjusting nut 5 is threadedly matched with the positioning screw 3. A plurality of groups of guide rails 6 are evenly provided on the upper surface of the platform 1 with the center of the center hole 2 as the center. The guide rails 6 are arranged in groups of two and all face the center of the center hole 2. A lead screw 7 is also provided above the platform 1 and between the two guide rails 6. The lead screw 7 is matched with a lead screw seat 8, and the lead screw seat 8 is connected to the platform 1. A square rod 22 is provided at the outer end of the lead screw 7, which facilitates the rotation of the lead screw 7 and can also be connected to a rotating handle or a hand wheel.

[0030] There are several limit assemblies and they slide with the corresponding guide rails 6. The limit assemblies include a slide plate 9, a slider 10, a fixed block 11, a support rod 12, a vertical plate 13, an arc-shaped guide plate 14 and a sliding support plate 15. Slide blocks 10 are provided on both sides of the lower surface of the slide plate 9. The slider 10 cooperates with the guide rail 6. A fixed block 11 is provided at the middle position of the lower surface of the slide plate 9. The fixed block 11 is provided with a lead screw nut 16. The lead screw nut 16 cooperates with the corresponding lead screw 7. Support rods 12 are installed on both sides of the upper surface of the slide plate 9 by bolts. Connecting grooves 17 are provided at both ends of the vertical plate 13. The vertical plate 13 is connected to the outer end of the support rod 12 through the connecting groove 17 and the bolts. The two ends of the outer surface of the vertical plate 13 are also provided with arc-shaped guide plates 14 through a number of connecting rods 18. Both ends of the arc-shaped guide plate 14 are It is an arc-shaped structure. Through the arc structures at both ends, whether the pile foundation reinforcement cage is lowered or raised, it can be limited and guided by the arc-shaped guide plate 14. Connecting plates 20 are provided on both sides of the connecting rod 18 away from the end of the arc-shaped guide plate 14. The connecting plate 20 is connected to the vertical plate 13 by bolts, so as to realize the connection and installation of the connecting rod 18 and the vertical plate 13. A sliding hole is opened in the middle position of the vertical plate 13, and a guide sleeve 19 is provided on the inner surface of the vertical plate 13 and located at the sliding hole. The sliding support plate 15 is slidably matched with the guide sleeve 19 and passes through the sliding hole of the vertical plate 13. A limited push-pull plate 21 is provided at one end of the sliding support plate 15 close to the slide plate 9. The limited push-pull plate 21 can avoid directly pushing the sliding support plate 15 out of the guide sleeve 19 when pushing the sliding support plate 15, and it is convenient for manual pushing and pulling on the other hand.

[0031] Installation method and principle of use: First, install the guide rails 6 on the upper surface of the platform 1, with the guide rails 6 in groups of two, and then install the screw seat 8 between the two guide rails 6 in the same group. Pass the screw 7 through the screw nut 16 at the bottom of the slide 9, and match the two ends of the screw 7 with the screw seat 8. Then, the slide 9 is connected to the guide rail 6 through the slider 10, and then the screw seat 8 is installed at the corresponding position on the upper surface of the platform 1 by bolts. According to the diameter of the steel cage, select a support rod 12 of appropriate length, and connect one end of the support rod 12 to the slide 9 by bolts. Connect the connecting plate 20 of the connecting rod 18 to the outer surface of the vertical plate 13 by bolts. The outer end of the connecting rod 18 is provided with an arc guide plate 14. Then, connect the vertical plate 13 to the outer end of the support rod 12 through the connection on both sides of the bottom. Finally, pass the sliding support plate 15 through the guide sleeve 19 of the vertical plate 13 to complete the installation. When in use, move the platform 1 to the pile foundation hole, insert the positioning screw 3 into the ground, and rotate the positioning support plate 4 at the same time so that the positioning support plate 4 is supported on the ground until the platform 1 is arranged horizontally. According to the diameter of the pile reinforcement cage, rotate the lead screw 7 of the limit assembly, and the lead screw 7 drives the slide plate 9 to move along the guide rail 6 through the cooperation with the lead screw auxiliary nut 16 until the distance between the two opposing arc guide plates 14 matches the outer diameter of the annular ribs of the reinforcement cage. Lift the reinforcement cage with a crane, and slowly pass the reinforcement cage through the center hole 2 of the platform 1 and place it in the pile foundation hole, as shown in the figure. Figure 6-7 As shown, at this time, the annular ribs of the steel cage descend along the arc-shaped guide plate 14. When the position needs to be adjusted or the work needs to be stopped, the sliding support plate 15 can be pushed toward the center first, so that the annular ribs at the corresponding position of the steel cage are supported on the sliding support plate 15, as shown in FIG. Figure 8 As shown, when adjusting the position or re-constructing, the crane will lift the steel cage slightly upward, pull back the sliding support plate 15, and then continue to lower the steel cage. Similarly, when the steel cage needs to be lifted upward, the annular ribs of the steel cage are guided along the lower part of the arc-shaped guide plate 14 and lifted from the pile foundation hole. The utility model has a reasonable structure. The arc-shaped guide plate 14 of multiple limit assemblies ensures the stability of the descent of the pile foundation steel cage, greatly improving the placement accuracy of the pile foundation steel cage; and because the arc-shaped guide plate 14 can follow the slide plate 9 to move along the guide rail 6, it can be adjusted according to steel cages of different diameters, and the scope of application is greatly improved; at the same time, the vertical plate 13 is matched with a sliding support plate 15 through a guide sleeve 19. By setting the sliding support plate 15, when the position of the steel cage needs to be fine-tuned or other matters need to be temporarily stopped from being lowered, the steel cage can be temporarily supported by the sliding support plate 15, which can realize temporary shutdown of the crane and avoid the crane being in the starting state all the time, and the convenience is greatly improved; the positioning screw 3 at the bottom of the platform 1 cooperates with the positioning support plate 4 with adjustable height, so that the whole can be leveled according to different terrains, further improving the scope of use.

[0032] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

[0033] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified and replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A pile foundation reinforcement cage lifting auxiliary device, characterized in that: It comprises a platform (1) and a limit assembly; A center hole (2) is provided in the middle of the platform (1), and positioning screws (3) are provided at four corners of the lower surface of the platform (1). The positioning screws (3) are connected in cooperation with a positioning support plate (4), and an adjusting nut (5) is provided on the upper surface of the positioning support plate (4). The adjusting nut (5) is threadedly matched with the positioning screw (3). A plurality of groups of guide rails (6) are evenly provided on the upper surface of the platform (1) with the center of the center hole (2) as the center. The guide rails (6) are arranged in groups of two and all face the center of the center hole (2). A lead screw (7) is also provided above the platform (1) and between the two guide rails (6). The lead screw (7) is connected in cooperation with a lead screw seat (8), and the lead screw seat (8) is connected to the platform (1); The limiting components are provided in a plurality and are slidably matched with the corresponding guide rails (6). The limiting components include a slide plate (9), a slider (10), a fixed block (11), a support rod (12), a vertical plate (13), an arc-shaped guide plate (14) and a sliding support plate (15). Slide plates (10) are provided on both sides of the lower surface of the slide plate (9). The slider (10) matches with the guide rails (6). A fixed block (11) is provided in the middle position of the lower surface of the slide plate (9). The fixed block (11) is provided with a lead screw nut (16). The lead screw nut (16) matches with the corresponding lead screw (7). Support rods (12) are installed on both sides of the upper surface of the slide plate (9) by bolts, and connecting grooves (17) are arranged at both ends of the vertical plate (13). The vertical plate (13) is connected to the outer ends of the support rods (12) through the connecting grooves (17) and bolts. The two ends of the outer surface of the vertical plate (13) are also provided with arc-shaped guide plates (14) through a plurality of connecting rods (18). A sliding hole is opened in the middle position of the vertical plate (13), and a guide sleeve (19) is arranged on the inner surface of the vertical plate (13) and located at the sliding hole. The sliding support plate (15) is slidably matched with the guide sleeve (19) and passes through the sliding hole of the vertical plate (13).

2. A pile foundation reinforcement cage lifting auxiliary device according to claim 1, characterized in that: Both ends of the arc-shaped guide plate (14) are arc-shaped structures.

3. The pile foundation reinforcement cage lifting auxiliary device according to claim 1 is characterized in that: Connecting plates (20) are arranged on both sides of one end of the connecting rod (18) away from the arc-shaped guide plate (14), and the connecting plates (20) are connected to the vertical plate (13) through bolts.

4. The pile foundation reinforcement cage lifting auxiliary device according to claim 1 is characterized in that: A limited push-pull plate (21) is provided at one end of the sliding support plate (15) close to the slide plate (9).

5. The pile foundation reinforcement cage lifting auxiliary device according to claim 1 is characterized in that: A square rod (22) is provided at the outer end of the lead screw (7).

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