Adjustable branch pile assembly

Abstract

The utility model relates to the technical field of foundation pit supporting, in particular to an adjustable branch pile assembly which comprises a branch pile body, an adjusting mechanism is arranged at the top of the branch pile body, a control groove is formed in the branch pile body, a control mechanism is arranged in the control groove, an extruding and expanding mechanism is arranged at the bottom of the control mechanism, and the extruding and expanding mechanism is connected with the adjusting mechanism. The adjusting mechanism comprises a top cover, a first hydraulic assembly is installed at the bottom of the top cover, a fixing base is installed at the bottom of the first hydraulic assembly, and fixing holes are formed in the four corners of the fixing base in a penetrating mode. According to the improved branch pile assembly, the adjusting mechanism is arranged at the top to adjust the height of the branch pile body, branch pits of different heights can be conveniently squeezed and expanded, the operation efficiency of foundation pit supporting is improved, meanwhile, the squeezing and expanding mechanism made of a wear-resisting alloy steel material is adopted to be matched with a sawtooth structure outside the squeezing and expanding arm, the situation that the squeezing and expanding arm deforms is avoided, and the practicability is high. And the service life of the branch pile assembly is prolonged, and the foundation pit supporting effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit support, in particular to an adjustable branch plate pile component. Background Art

[0002] The foundation pit is an earth pit excavated at the foundation design location according to the base elevation and foundation plane dimensions. Before excavation, the foundation pit needs to be determined based on geological data and the conditions of nearby buildings on site, and waterproofing and drainage work must be done. Support is needed during the foundation pit construction process. Foundation pit support is a support, reinforcement and protection measure for the side walls and surrounding environment to ensure the safety of underground structure construction and the surrounding environment of the foundation pit.

[0003] In foundation pit support, branch plate pile assemblies are required to be squeezed and expanded into plates in conjunction with concrete pouring to form branch plate piles. Compared with common equal-diameter straight piles, branch plate piles have a certain vertical bearing capacity. The branch plates arranged on them have a good ability to balance the bending moment of the pile body, so that the maximum bending moment of the pile body under horizontal load is smaller than that of equal-diameter piles of the same diameter and length, which is conducive to saving pile body materials and better supporting the foundation pit.

[0004] In the process of realizing the utility model, the inventors found that the prior art had the following problems: 1. When the branch pile assembly is expanding the soil layer, it is often necessary to expand the soil layers at different heights to increase the number of branches of the branch pile, but the common branch pile assemblies are often not easy to adjust the height, which in turn affects the efficiency of foundation pit support; 2. When the common branch pile assemblies are expanding the soil layer, the expansion arms are often prone to deformation, which affects the service life of the branch pile assembly and thus affects the effect of foundation pit support. Utility Model Content

[0005] The purpose of the present utility model is to provide an adjustable branch plate pile assembly to solve the problem that the branch plate pile assembly proposed in the above background technology needs to expand soil layers of different heights to increase the number of branches when expanding the soil layer, but the common branch plate pile assembly is not easy to adjust the height, which affects the efficiency of foundation pit support. At the same time, when the branch plate pile assembly expands the soil layer, the expansion arm is prone to deformation, resulting in a reduction in the service life of the branch plate pile assembly, thereby affecting the effect of foundation pit support. In order to achieve the above purpose, the present utility model provides the following technical solutions: an adjustable branch plate pile assembly, including a branch plate pile body, an adjustment mechanism is provided on the top of the branch plate pile body, a control groove is provided inside the branch plate pile body, a control mechanism is provided inside the control groove, and an expansion mechanism is provided at the bottom of the control mechanism.

[0006] The adjustment mechanism comprises a top cover, a first hydraulic assembly is installed at the bottom of the top cover, a fixed base is installed at the bottom of the first hydraulic assembly, and fixing holes are penetrated at the four corners of the fixed base.

[0007] The control mechanism comprises a control motor, the bottom of the control motor is drivingly connected to a threaded shaft, the external thread of the threaded shaft is threadably connected to an extrusion base, and the external sliding of the threaded shaft is slidably connected to a balancing base.

[0008] The extrusion and expansion mechanism includes an upper extrusion and expansion arm, one end of which is rotatably connected to the top of the extrusion and expansion block, the bottom of the extrusion and expansion block is rotatably connected to the lower extrusion and expansion arm, the bottom of the lower extrusion and expansion arm is rotatably connected to the extrusion and expansion base, and a second hydraulic component is installed on one side of the extrusion and expansion block.

[0009] Further preferably, the branch pile body is a hollow cylindrical structure, and four control grooves are evenly penetrated through the bottom of the branch pile body, and an extrusion and expansion mechanism is provided inside each control groove.

[0010] Further preferably, four first hydraulic assemblies are evenly installed around the top of the fixed base, and the fixed base and the outside of the branch pile body form a sliding connection structure.

[0011] Further preferably, four upper extrusion arms are rotatably connected to the four sides of the extrusion base, and the extrusion base is rotatably connected to one end of the upper extrusion arm with the threaded shaft to form a threaded connection structure.

[0012] Further preferably, the balancing base is located below the extrusion and expansion base, and four second hydraulic assemblies are respectively installed around the balancing base.

[0013] Further preferably, the upper extrusion expansion arm, the lower extrusion expansion arm and the extrusion expansion block are all made of wear-resistant alloy steel, and the outer parts of the upper extrusion expansion arm and the lower extrusion expansion arm are both configured to be serrated.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the utility model, an adjusting mechanism is added on the top of the branch pile assembly to adjust the height, which is convenient for controlling the squeezing and expansion mechanism at the bottom of the branch pile assembly to squeeze and expand soil layers of different heights, thereby forming branch pits of different heights, which is convenient for meeting the needs of foundation pit support.

[0016] In the utility model, an extrusion and expansion mechanism made of wear-resistant alloy steel is used in combination with a serrated structure arranged on the outside of the upper extrusion and expansion arm and the lower extrusion and expansion arm, which improves the crushing force and destructive force on the hard rock formation while also greatly improving the friction resistance of the extrusion and expansion arm, thereby increasing the compressive bearing capacity and the tensile bearing capacity, making the overall bearing capacity of the extrusion and expansion mechanism greater, increasing the service life of the branch pile assembly, and improving the effect of foundation pit support. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view structural diagram of the utility model when not in use;

[0018] Figure 2 This is a front view structural diagram of the utility model when in use;

[0019] Figure 3 This is a schematic diagram of the internal structure of the branch plate pile assembly of the utility model;

[0020] Figure 4 It is a schematic diagram of the explosive enlargement structure of the extrusion and expansion mechanism of the utility model.

[0021] In the figure: 1. branch pile body; 2. adjustment mechanism; 201. top cover; 202. first hydraulic assembly; 203. fixed base; 204. fixed hole; 3. control slot; 4. control mechanism; 401. control motor; 402. threaded shaft; 403. extrusion base; 404. balance base; 5. extrusion mechanism; 501. upper extrusion arm; 502. extrusion block; 503. lower extrusion arm; 504. extrusion base; 505. second hydraulic assembly. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments 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 technical personnel in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 4 The utility model provides a technical solution: an adjustable branch pile assembly, including a branch pile body 1, an adjusting mechanism 2 is arranged on the top of the branch pile body 1, a control groove 3 is arranged inside the branch pile body 1, a control mechanism 4 is arranged inside the control groove 3, and an extrusion mechanism 5 is arranged at the bottom of the control mechanism 4.

[0024] The adjustment mechanism 2 comprises a top cover 201 , a first hydraulic assembly 202 is mounted on the bottom of the top cover 201 , a fixed base 203 is mounted on the bottom of the first hydraulic assembly 202 , and fixing holes 204 are penetrated at the four corners of the fixed base 203 .

[0025] The control mechanism 4 comprises a control motor 401 , the bottom of the control motor 401 is drivingly connected to a threaded shaft 402 , the external thread of the threaded shaft 402 is threadedly connected to an expansion base 403 , and the external sliding of the threaded shaft 402 is slidably connected to a balancing base 404 .

[0026] The extrusion and expansion mechanism 5 includes an upper extrusion and expansion arm 501, one end of which is rotatably connected to the top of an extrusion and expansion block 502, the bottom of the extrusion and expansion block 502 is rotatably connected to a lower extrusion and expansion arm 503, the bottom of the lower extrusion and expansion arm 503 is rotatably connected to an extrusion and expansion base 504, and a second hydraulic component 505 is installed on one side of the extrusion and expansion block 502.

[0027] In this embodiment, Figure 2 and Figure 3 As shown, the branch pile body 1 is a hollow cylindrical structure, and four control grooves 3 are evenly penetrated through the bottom of the branch pile body 1, and an extrusion and expansion mechanism 5 is arranged inside each control groove 3; the four extrusion and expansion mechanisms 5 are used to jointly extrude and expand the soil layer, thereby improving the extrusion and expansion efficiency of the branch pile assembly, thereby improving the construction efficiency of the branch pile foundation pit.

[0028] In this embodiment, Figure 1 and Figure 2 As shown, four first hydraulic components 202 are evenly installed around the top of the fixed base 203, and the fixed base 203 and the outside of the branch pile body 1 form a sliding connection structure; by arranging four first hydraulic components 202 on the outside of the fixed base 203, the branch pile body 1 is driven to move up and down inside the fixed base 203, and the extrusion and expansion position of the branch pit is adjusted, which is convenient for extrusion and expansion of branch pits at different heights, thereby improving the adaptability of the branch pile assembly.

[0029] In this embodiment, Figure 3 and Figure 4 As shown, four upper extrusion arms 501 are rotatably connected to the four sides of the extrusion base 403, and the extrusion base 403 forms a threaded connection structure with the threaded shaft 402 by rotating one end of the upper extrusion arm 501; the extrusion base 403 is driven to move up and down by rotating the threaded shaft 402, so as to control the opening and closing of the two extrusion arms, so as to facilitate the extrusion operation of the branch pile assembly.

[0030] In this embodiment, Figure 3 and Figure 4 As shown, the balancing base 404 is located below the extrusion base 403, and four second hydraulic assemblies 505 are installed around the balancing base 404 respectively; by arranging the second hydraulic assemblies 505 at the centers of the four extrusion blocks 502 to cooperate with the sliding balancing base 404 to keep the extrusion blocks 502 stable during the extrusion process, and at the same time limit the extrusion direction, the stability of the branch pile assembly as a whole during the extrusion operation is improved.

[0031] In this embodiment, Figure 3 and Figure 4As shown, the upper extrusion and expansion arm 501, the lower extrusion and expansion arm 503 and the extrusion and expansion block 502 are all made of wear-resistant alloy steel, and the outer parts of the upper extrusion and expansion arm 501 and the lower extrusion and expansion arm 503 are both arranged to be serrated; the extrusion and expansion arm and the extrusion and expansion block 502 made of wear-resistant alloy steel can effectively improve the overall wear resistance of the extrusion and expansion mechanism 5, and are not easy to deform, thereby increasing the service life. At the same time, the serrated structure arranged on the outer part of the extrusion and expansion arm can better destroy the hard rock formation, facilitate extrusion and expansion, and improve the extrusion and expansion efficiency of the branch pile assembly.

[0032] The use method and advantages of the utility model: When the adjustable support plate pile assembly is used, the working process is as follows:

[0033] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, first, the operator inserts the branch pile body 1 into the pre-set foundation pit; then, the fixing nails are used to cooperate with the fixing holes 204 to fix the fixed base 203 on the surface of the soil layer, and the four first hydraulic components 202 around the top of the fixed base 203 are started to drive the branch pile body 1 connected to the top cover 201 to move up and down, so as to adjust the height of the branch pit to be squeezed and expanded; then, the control motor 401 is started to drive the threaded shaft 402 to rotate and drive the squeezing and expansion base 403 to move up and down, and at the same time, the squeezing and expansion block 502 is driven by the joint action of the upper squeezing and expansion arm 501 and the lower squeezing and expansion arm 503 connected in rotation. The soil layer is expanded, and the four second hydraulic components 505 around the balancing base 404 push the four expansion blocks 502 to improve the stability of the expansion of the expansion blocks 502; finally, the hard rock layer can be well crushed under the action of the external serrated structure of the upper expansion arm 501 and the lower expansion arm 503. After the expansion is completed, the fixing nails are removed and the fixed base 203 is rotated to drive the branch pile assembly to rotate as a whole to expand the branch pit in multiple directions, and the first hydraulic component 202 is cooperated to expand the branch pits at different heights. After the operation is completed, the branch pile assembly is taken out to carry out the subsequent concrete pouring operation.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An adjustable branch pile assembly, comprising a branch pile body (1), characterized in that: The top of the branch pile body (1) is provided with an adjustment mechanism (2), the interior of the branch pile body (1) is provided with a control groove (3), the interior of the control groove (3) is provided with a control mechanism (4), and the bottom of the control mechanism (4) is provided with an extrusion and expansion mechanism (5); The adjustment mechanism (2) comprises a top cover (201), a first hydraulic assembly (202) is installed at the bottom of the top cover (201), a fixed base (203) is installed at the bottom of the first hydraulic assembly (202), and fixing holes (204) are penetrated at four corners of the fixed base (203); The control mechanism (4) comprises a control motor (401), the bottom of the control motor (401) is drivingly connected to a threaded shaft (402), the outer thread of the threaded shaft (402) is threadedly connected to an extrusion base (403), and the outer part of the threaded shaft (402) is slidably connected to a balancing base (404); The extrusion and expansion mechanism (5) comprises an upper extrusion and expansion arm (501), one end of the upper extrusion and expansion arm (501) is rotatably connected to the top of an extrusion and expansion block (502), the bottom of the extrusion and expansion block (502) is rotatably connected to a lower extrusion and expansion arm (503), the bottom of the lower extrusion and expansion arm (503) is rotatably connected to an extrusion and expansion base (504), and a second hydraulic component (505) is installed on one side of the extrusion and expansion block (502).

2. The adjustable branch pile assembly according to claim 1, characterized in that: The branch pile body (1) is a hollow cylindrical structure, and four control grooves (3) are evenly penetrated through the bottom of the branch pile body (1), and an extrusion and expansion mechanism (5) is arranged inside each control groove (3).

3. The adjustable branch plate pile assembly according to claim 1, characterized in that: Four first hydraulic components (202) are evenly installed around the top of the fixed base (203), and the fixed base (203) and the outside of the branch pile body (1) form a sliding connection structure.

4. The adjustable branch pile assembly according to claim 1, characterized in that: Four upper extrusion arms (501) are rotatably connected to the four sides of the extrusion base (403), and the extrusion base (403) is rotatably connected to one end of the upper extrusion arm (501) to form a threaded connection structure with the threaded shaft (402).

5. The adjustable branch pile assembly according to claim 1, characterized in that: The balancing base (404) is located below the extrusion base (403), and four second hydraulic components (505) are respectively installed around the balancing base (404).

6. The adjustable branch plate pile assembly according to claim 1, characterized in that: The upper extrusion arm (501), the lower extrusion arm (503) and the extrusion block (502) are all made of wear-resistant alloy steel, and the outer parts of the upper extrusion arm (501) and the lower extrusion arm (503) are both arranged in a sawtooth shape.

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