A foundation pile for water conservancy engineering construction

Abstract

The present invention relates to the technical field of building foundation piles, and proposes a water conservancy engineering building foundation pile, comprising a pile foundation outer cylinder and a pile foundation inner cylinder slidably arranged inside the pile foundation outer cylinder, an expanding diameter anchoring mechanism is slidably penetrated on the pile foundation outer cylinder, and a positioning secondary pushing mechanism is arranged on the outer side of the pile foundation inner cylinder for driving the expanding diameter anchoring mechanism to enter the inside of the pile hole side wall. The beneficial effects of the present application are as follows: when in use, the pile foundation outer cylinder is first penetrated into the pile hole, and then when the pile foundation inner cylinder is slid downward along the pile foundation outer cylinder, the expanding diameter anchoring mechanism is driven by the positioning secondary pushing mechanism to work so that it penetrates into the inside of the pile hole side wall to form an expanded diameter hole, and then reinforced building concrete is laid, and the concrete flows into the expanding diameter anchoring mechanism and the expanded diameter hole to fix the pile foundation outer cylinder more firmly, thereby improving its stability and bearing capacity.

Description

Technical Field

[0001] The invention relates to the technical field of building foundation piles, and in particular to a water conservancy engineering building foundation pile. Background Art

[0002] In the process of water conservancy project construction, it is necessary to first prepare the foundation, then drill pile holes on the foundation, and then install foundation piles in the pile holes. The foundation piles in the prior art generally include an outer tube and an inner tube, and then steel bars are poured into the inner tube and in the gaps, and then concrete is poured.

[0003] The pile foundation in the above-mentioned prior art has the problem that the contact and connection between the outer tube and the pile hole is not firm, which leads to certain problems in the stability of the entire pile foundation and the subsequent bearing capacity. Summary of the invention

[0004] The present application proposes a foundation pile for a water conservancy engineering building, which increases the connection strength between the entire foundation pile and the pile hole, and improves the stability and bearing capacity of the foundation pile.

[0005] To this end, the present application provides a foundation pile for a water conservancy project, comprising a pile foundation outer cylinder and a pile foundation inner cylinder slidably arranged on the inner side of the pile foundation outer cylinder, wherein an expanding diameter anchoring mechanism is slidably penetrated through the pile foundation outer cylinder, and a positioning secondary pushing mechanism is provided on the outer side of the pile foundation inner cylinder for driving the expanding diameter anchoring mechanism to enter the side wall of the pile hole.

[0006] By adopting the above technical solution: when in use, the pile foundation outer tube is first inserted into the pile hole, and then the pile foundation inner tube is slid downward along the pile foundation outer tube, and the expansion-diameter anchoring mechanism is driven by the positioning secondary pushing mechanism to penetrate into the side wall of the pile hole to form an expansion-diameter hole, and then reinforced concrete is laid, and the concrete flows into the expansion-diameter anchoring mechanism and the expansion-diameter hole to fix the pile foundation outer tube more firmly, thereby improving its stability and bearing capacity.

[0007] Optionally, an E-shaped groove is provided on the inner side of the pile foundation outer tube, the expanding diameter anchoring mechanism includes a drilling assembly passed through the pile foundation outer tube and an expanding hole assembly arranged inside the drilling assembly, and the positioning secondary pushing mechanism includes a trigger assembly sliding in the E-shaped groove to drive the drilling assembly to work and an expansion power assembly to drive the expanding hole assembly to work.

[0008] By adopting the above technical solution: the drilling component can drill into the side wall of the pile hole under the action of the trigger component to form a borehole, and then the expansion power component drives the expansion component to expand the end of the borehole, so that the concrete can enter the borehole later and fill the end to form an internal anchoring structure.

[0009] Optionally, the drilling assembly comprises a hollow drill rod which is inserted into an outer tube of the pile foundation, and an actuated inclined portion is provided at one end of the drill rod which is close to the center of the outer tube of the pile foundation.

[0010] By adopting the above technical solution: when the pile foundation inner tube falls, the trigger assembly contacts the actuated inclined surface and squeezes the actuated inclined surface to move away from the center of the pile foundation outer tube, thereby drilling into the side wall of the pile hole.

[0011] Optionally, the E-shaped groove includes a first groove body and a second groove body, an intermediate wall is provided between the first groove body and the second groove body, and the trigger assembly includes a first driving block arranged on the pile foundation inner tube, the first driving block is slidably arranged in the first groove body, and the lower part of the first driving block is provided with a driving inclined portion cooperating with the driven inclined portion.

[0012] By adopting the above technical solution: the first groove body plays a limiting role when the pile foundation inner tube enters the pile foundation outer tube, and secondly, when the first driving block slides downward inside the first groove body, it can touch the passive inclined surface, thereby forcing the drill rod to drill into the side wall of the pile hole.

[0013] Optionally, the hole expansion assembly includes an opening and closing member hinged to an end of the drill rod away from the inner tube of the pile foundation, a limiting member for limiting the position of the opening and closing member, and a linkage member for driving the opening and closing member to open.

[0014] By adopting the above technical solution: the limiting member can limit the opening and closing member in the initial state, and the linkage member is used to drive the opening and closing member to open a pair of inner ends of the drilled holes to expand the diameter, and an anchoring structure is formed after the concrete is built.

[0015] Optionally, the opening and closing parts include a plurality of V-shaped plates hinged at the end of the drill rod through a torsion shaft, the inflection point of the V-shaped plates is connected to the torsion shaft, one side plate of the plurality of V-shaped plates faces the outer end of the drill rod and overlaps each other, and the other end abuts against a limit piece arranged on the inner wall of the drill rod.

[0016] By adopting the above technical solution: in the initial state, one side plate of multiple V-shaped plates faces the outer end of the drill rod and overlaps each other to form a tip for easy drilling, the torsion axis can stabilize the overlap in the initial state, and the limiter can maintain the position of the V-shaped plate when drilling.

[0017] Optionally, a contact piece is provided at the end of the V-shaped piece inside the drill rod, and the linkage part includes a push ring that contacts the contact piece, and the push ring is connected to one end of the linkage square rod through a cross frame, and the linkage square rod is inside the drill rod and is slidably connected to a cross retaining frame arranged on the inner wall of the drill rod, and the other end of the linkage square rod is connected to an L-shaped yield rod, and the L-shaped yield rod is connected to an actuated block after passing through the drill rod, and the upper part of the actuated block is provided with a passive inclined portion that cooperates with the expansion power assembly, and the middle wall of the E-shaped groove is provided with a sliding groove for the L-shaped yield rod to slide.

[0018] Optionally, the expansion power assembly includes a second driving block arranged inside the second slot body, the position of the second driving block is higher than the first driving block, and the lower part of the second driving block is provided with a pushing inclined portion cooperating with the passive inclined portion.

[0019] By adopting the above technical solution: the contact piece is used to contact the push ring. During the whole process, the first driving block first drives the drill rod to drill into the inner wall of the pile hole. Then, after the push inclined portion of the second driving block contacts the passive inclined portion, the passive block is forced to move to the outside of the pile foundation outer tube, so that the L-shaped give way rod slides inside the slide groove, driving the linkage square rod to move. The other end of the linkage square rod drives the push ring to move. The push ring contacts the contact piece, driving the V-shaped piece to rotate along the torsion axis, so that the side plate outside the V-shaped piece rotates, which can expand the aperture of the end of the borehole. When building concrete, concrete can be poured into the drill rod and the expanded part of the end of the borehole, thereby forming an anchoring structure.

[0020] Optionally, the cross retainer includes a cross whose one end is connected to the inside of the drill rod, the other end of the cross is connected to a square sleeve, and the linked square rod is slidably arranged inside the square sleeve.

[0021] By adopting the above technical solution: the square sleeve can prevent the linkage rod from rotating, so that the linkage rod keeps moving inside the square sleeve, and the cross can avoid blocking the drill rod, so that concrete can flow in easily.

[0022] Optionally, the bottom ends of the pile foundation outer tube and the pile foundation inner tube are provided with pointed ends, the outer end of the drill rod is tilted downward, and a concrete injection groove is provided on the upper part of the drill rod in the first trough body.

[0023] By adopting the above technical solution, the tip is easy to position, and the downwardly inclined drill rod is more convenient for concrete to flow inward. When concrete is injected into the E-shaped groove, the concrete can enter the drill rod and the inside of the drill hole through the concrete injection groove.

[0024] The working principle and beneficial effects of this application are:

[0025] 1. When in use, the outer tube of the pile foundation is first inserted into the pile hole, and then the inner tube of the pile foundation slides downward along the outer tube of the pile foundation. The expanded diameter anchoring mechanism is driven by the positioning secondary pushing mechanism to penetrate into the side wall of the pile hole to form an expanded diameter hole. Then, reinforced concrete is laid, and the concrete flows into the expanded diameter anchoring mechanism and the expanded diameter hole to fix the outer tube of the pile foundation more firmly, thereby improving its stability and bearing capacity.

[0026] 2. The contact piece is used to contact with the push ring. During the whole process, the first driving block first drives the drill rod to drill into the inner wall of the pile hole. Then, the push inclined portion of the second driving block contacts the passive inclined portion, forcing the passive block to move to the outside of the pile foundation outer tube, so that the L-shaped give way rod slides inside the slide groove, driving the linkage square rod to move. The other end of the linkage square rod drives the push ring to move. The push ring contacts the contact piece, driving the V-shaped piece to rotate along the torsion axis, so that the side plate outside the V-shaped piece rotates, which can expand the aperture of the end of the borehole. When building concrete, concrete can be poured into the drill rod and the expanded part of the end of the borehole, thereby forming an anchoring structure.

[0027] 3. The tip is easy to position, and the downward-inclined drill rod is more convenient for concrete to flow inward. When concrete is injected into the E-shaped groove, the concrete can enter the drill rod and the inside of the drill hole through the concrete injection groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0030] Figure 2 This is an enlarged structural schematic diagram of the diameter-expanding anchoring mechanism of an embodiment of the present application;

[0031] Figure 3 A schematic diagram of a top view of the structure of an embodiment of the present application;

[0032] Figure 4 For the embodiments of this application Figure 1 Enlarged structural diagram at A in the middle.

[0033] In the figure: 100, pile foundation outer tube; 200, pile foundation inner tube; 300, expansion type anchor mechanism; 310, drilling assembly; 311, drill rod; 312, active inclined surface; 320, expansion assembly; 321, opening and closing member; 322, limit member; 323, torque shaft; 324, contact piece; 325, push ring; 330, cross; 340, linkage square rod; 350, cross cage; 351, cross; 352, square sleeve; 3 60. L-shaped yielding rod; 370. passive block; 371. passive inclined portion; 380. concrete injection groove; 400. positioning secondary pushing mechanism; 410. trigger assembly; 411. first driving block; 412. driving inclined portion; 420. expansion power assembly; 421. second driving block; 422. pushing inclined portion; 500. E-shaped groove; 510. first groove body; 520. second groove body; 530. middle wall; 600. tip portion. DETAILED DESCRIPTION

[0034] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] like Figure 1-Figure 4 As shown, this embodiment proposes a foundation pile for a water conservancy engineering building, comprising a pile foundation outer cylinder 100 and a pile foundation inner cylinder 200 slidably arranged on the inner side of the pile foundation outer cylinder 100, an expanding diameter anchoring mechanism 300 is slidably penetrated on the pile foundation outer cylinder 100, and a positioning secondary pushing mechanism 400 is provided on the outer side of the pile foundation inner cylinder 200 for driving the expanding diameter anchoring mechanism 300 to enter the inside of the pile hole side wall, wherein the pile foundation outer cylinder 100 and the pile foundation inner cylinder 200 are reinforced concrete prefabricated products.

[0036] The basic principle of this embodiment is as follows: when in use, the pile foundation outer cylinder 100 is firstly inserted into the pile hole, and then the pile foundation inner cylinder 200 is slid downward along the pile foundation outer cylinder 100, and the expanded diameter anchoring mechanism 300 is driven by the positioning secondary pushing mechanism 400 to penetrate into the side wall of the pile hole to form an expanded diameter hole, and then reinforced concrete is laid, and the concrete flows into the expanded diameter anchoring mechanism 300 and the expanded diameter hole to fix the pile foundation outer cylinder 100 more firmly, thereby improving its stability and bearing capacity.

[0037] In this embodiment, an E-shaped groove 500 is provided on the inner side of the pile foundation outer tube 100, the diameter expansion type anchoring mechanism 300 includes a drilling assembly 310 penetrated through the pile foundation outer tube 100 and an expansion assembly 320 arranged inside the drilling assembly 310, and the positioning secondary pushing mechanism 400 includes a trigger assembly 410 sliding in the E-shaped groove 500 to drive the drilling assembly 310 to work and an expansion power assembly 420 to drive the expansion assembly 320 to work.

[0038] The specific principle is: the drilling component 310 can drill into the side wall of the pile hole to form a borehole under the action of the trigger component 410, and then the expansion power component 420 drives the expansion component 320 to work to expand the end of the borehole, so that the concrete can enter the borehole later and fill the end to form an internal anchoring structure.

[0039] The drilling assembly 310 includes a hollow drill rod 311 inserted into the pile foundation outer cylinder 100 , and an actuated inclined surface 312 is disposed at one end of the drill rod 311 close to the center of the pile foundation outer cylinder 100 .

[0040] When the pile foundation inner cylinder 200 falls, the trigger assembly 410 contacts the driven inclined surface portion 312 and presses the driven inclined surface portion 312 to move away from the center of the pile foundation outer cylinder 100 , thereby drilling into the side wall of the pile hole.

[0041] The E-shaped groove 500 in this embodiment includes a first groove body 510 and a second groove body 520, and an intermediate wall 530 is provided between the first groove body 510 and the second groove body 520. The trigger assembly 410 includes a first driving block 411 arranged on the pile foundation inner tube 200, and the first driving block 411 is slidably arranged in the first groove body 510. The lower part of the first driving block 411 is provided with a driving inclined portion 412 that cooperates with the driven inclined portion 312.

[0042] The first groove body 510 plays a limiting role when the pile foundation inner tube 200 enters the pile foundation outer tube 100, and secondly, when the first driving block 411 slides downward inside the first groove body 510, it can touch the driven inclined surface part 312, thereby forcing the drill rod 311 to drill into the side wall of the pile hole.

[0043] The hole expansion assembly 320 includes an opening and closing piece 321 hinged at one end of the drill rod 311 away from the pile foundation inner tube 200, a limiting piece 322 for limiting the opening and closing piece 321, and a linkage piece for driving the opening and closing piece 321 to open. The limiting piece 322 can limit the opening and closing piece 321 in the initial state, and the linkage piece is used to drive the opening and closing piece 321 to open a pair of inner ends of the drilled holes to expand the diameter, so as to form an anchoring structure after the concrete is built.

[0044] The opening and closing member 321 in this embodiment includes a plurality of V-shaped plates hinged at the end of the drill rod 311 through a torsion shaft 323, and the turning point of the V-shaped plates is connected to the torsion shaft 323. One side plate of the plurality of V-shaped plates faces the outer end of the drill rod 311 and overlaps with each other, and the other end abuts against a limit member 322 arranged on the inner wall of the drill rod 311.

[0045] In the initial state, one side plate of multiple V-shaped plates faces the outer end of the drill rod 311 and overlaps with each other to form a tip 600 for easy drilling. The torsion shaft 323 can stabilize the overlap in the initial state, and the limiter 322 can maintain the position of the V-shaped plate when drilling.

[0046] Specifically, a contact piece 324 is provided at the end of the V-shaped piece inside the drill rod 311, and the linkage member includes a push ring 325 in contact with the contact piece 324. The push ring 325 is connected to one end of the linkage square rod 340 through a cross 330. The linkage square rod 340 is inside the drill rod 311 and is slidably connected to a cross retainer 350 arranged on the inner wall of the drill rod 311. The other end of the linkage square rod 340 is connected to an L-shaped yield rod 360. After the L-shaped yield rod 360 passes through the drill rod 311, it is connected to an actuated block 370. The upper part of the actuated block 370 is provided with a passive inclined portion 371 that cooperates with the expansion power assembly 420. The middle wall 530 of the E-shaped groove 500 is provided with a sliding groove for the L-shaped yield rod 360 to slide.

[0047] The expansion power assembly 420 includes a second driving block 421 disposed inside the second slot 520 . The second driving block 421 is located higher than the first driving block 411 . The lower portion of the second driving block 421 is provided with a pushing inclined portion 422 that cooperates with the passive inclined portion 371 .

[0048] Specific working principle: the contact piece 324 is used to contact with the push ring 325. During the whole process, the first driving block 411 first drives the drill rod 311 to drill into the inner wall of the pile hole. Then, the push inclined portion 422 of the second driving block 421 contacts the passive inclined portion 371, forcing the passive block 370 to move to the outside of the pile foundation outer tube 100, so that the L-shaped yielding rod 360 slides inside the slide groove, driving the linkage square rod 340 to move, and the other end of the linkage square rod 340 drives the push ring 325 to move. The push ring 325 contacts the contact piece 324, driving the V-shaped piece to rotate along the torsion shaft 323, so that the side plate outside the V-shaped piece rotates, which can expand the aperture of the end of the borehole. When building concrete, concrete can be poured into the drill rod 311 and the enlarged part of the end of the borehole, thereby forming an anchoring structure.

[0049] Finally, the cross retainer 350 in this embodiment includes a cross 351 with one end connected to the inside of the drill rod 311 , and the other end of the cross 351 is connected to a square sleeve 352 , and the linkage square rod 340 is slidably arranged inside the square sleeve 352 .

[0050] The square sleeve 352 can prevent the linkage rod from rotating, so that the linkage rod can keep moving inside the square sleeve 352, and the cross 351 can avoid blocking the drill rod 311, so as to facilitate the inflow of concrete.

[0051] A tip portion 600 is provided at the bottom end of the pile foundation outer tube 100 and the pile foundation inner tube 200. The outer end of the drill rod 311 is tilted downward. A concrete injection groove 380 is provided on the upper part of the drill rod 311 inside the first trough body 510. The tip portion 600 is convenient for positioning. The downward tilted drill rod 311 is more convenient for concrete to flow inward. When concrete is injected into the E-shaped groove 500, the concrete can enter the drill rod 311 and the inside of the drill hole through the concrete injection groove 380.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A foundation pile for a water conservancy project, characterized in that: The pile foundation comprises a pile foundation outer cylinder (100) and a pile foundation inner cylinder (200) slidably arranged inside the pile foundation outer cylinder (100), an expanded-diameter anchoring mechanism (300) being slidably penetrated through the pile foundation outer cylinder (100), and a positioning secondary pushing mechanism (400) for driving the expanded-diameter anchoring mechanism (300) to enter the inside of the pile hole side wall is arranged on the outside of the pile foundation inner cylinder (200); An E-shaped groove (500) is provided on the inner side of the pile foundation outer cylinder (100); the diameter-expanding anchoring mechanism (300) comprises a drilling assembly (310) inserted into the pile foundation outer cylinder (100) and a hole-expanding assembly (320) arranged inside the drilling assembly (310); the positioning secondary pushing mechanism (400) comprises a trigger assembly (410) sliding in the E-shaped groove (500) for driving the drilling assembly (310) to work, and an expansion power assembly (420) for driving the hole-expanding assembly (320) to work; The drilling assembly (310) comprises a hollow drill rod (311) inserted into the pile foundation outer cylinder (100); an end of the drill rod (311) close to the center of the pile foundation outer cylinder (100) is provided with an actuated inclined portion (312); The E-shaped groove (500) comprises a first groove body (510) and a second groove body (520), an intermediate wall (530) is provided between the first groove body (510) and the second groove body (520), the trigger assembly (410) comprises a first driving block (411) arranged on the pile foundation inner tube (200), the first driving block (411) is slidably arranged in the first groove body (510), and a driving inclined portion (412) cooperating with a driven inclined portion (312) is provided at the lower portion of the first driving block (411); The hole expansion assembly (320) comprises an opening and closing member (321) hingedly connected to an end of the drill rod (311) away from the pile foundation inner tube (200), a limiting member (322) for limiting the position of the opening and closing member (321), and a linkage member for driving the opening and closing member (321) to open; The opening and closing member (321) comprises a plurality of V-shaped plates hinged to the end of the drill rod (311) via a torsion shaft (323), the inflection points of the V-shaped plates being connected to the torsion shaft (323), one side plate of the plurality of V-shaped plates facing the outer end of the drill rod (311) and overlapping each other, and the other end abutting against a stopper (322) provided on the inner wall of the drill rod (311); A contact piece (324) is provided at the end of the V-shaped piece inside the drill rod (311); the linkage member comprises a push ring (325) in contact with the contact piece (324); the push ring (325) is connected to one end of a linkage square rod (340) via a crossbar (330); the linkage square rod (340) is inside the drill rod (311) and is slidably connected to a cross holder (350) arranged on the inner wall of the drill rod (311); the other end of the linkage square rod (340) is connected to an L-shaped yielding rod (360); the L-shaped yielding rod (360) is connected to an actuated block (370) after passing through the drill rod (311); a passive inclined portion (371) cooperating with an expansion power assembly (420) is provided on the upper portion of the actuated block (370); and a sliding groove for the L-shaped yielding rod (360) to slide is provided on the middle wall (530) of the E-shaped groove (500); The expansion power assembly (420) comprises a second driving block (421) arranged inside the second slot body (520); the second driving block (421) is located higher than the first driving block (411); and a pushing inclined portion (422) cooperating with the passive inclined portion (371) is provided at the lower portion of the second driving block (421).

2. A water conservancy engineering building foundation pile according to claim 1, characterized in that: The cross retainer (350) comprises a cross (351) with one end connected to the inside of the drill rod (311), the other end of the cross (351) is connected to a square sleeve (352), and the linked square rod (340) is slidably arranged inside the square sleeve (352).

3. A water conservancy engineering building foundation pile according to any one of claims 1-2, characterized in that: The bottom ends of the pile foundation outer cylinder (100) and the pile foundation inner cylinder (200) are provided with a tip portion (600), the outer end of the drill rod (311) is tilted downward, and a concrete injection groove (380) is provided on the upper part of the drill rod (311) inside the first groove body (510).

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