Foundation reinforcing pile

Abstract

The utility model discloses a foundation reinforcing pile which comprises a fixed rod and four arc-shaped push plates arranged around the fixed rod, a groove is formed in the top of the fixed rod, a movable rod is inserted into the groove in a sliding mode, the outer side of the fixed rod is sleeved with a sliding sleeve in a sliding mode, and the top of the sliding sleeve is fixedly connected with the top of the movable rod; by arranging the conical pile tip defined by the drill bit, the reinforcing pile body can be conveniently driven into a foundation, then the movable rod drives the sliding sleeve to slide on the fixed rod, when the bottom end of the movable rod gets close to the bottom end of the groove, the supporting rod rotates to be in a parallel state from an inclined state, and the supporting rod drives the outer plate and the arc-shaped push plate to move outwards and upwards; when the circumference of the reinforcing pile expands outwards to the maximum limit, the contact area of the reinforcing pile and the foundation is increased, the supporting stability of the reinforcing pile body is improved, concrete pouring is conducted, the top position of the pile body is fixed conveniently, the contact area of the pile body and the foundation is increased, and the stability of the reinforcing pile body and the foundation is improved.

Description

Technical Field

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

[0002] The foundation refers to the soil or rock mass that supports the foundation under the building. The soil layers used as the foundation of the building are divided into rock, gravel soil, sand, silt, clay and artificial fill. There are two types of foundations: natural foundations and artificial foundations (composite foundations). Natural foundations are natural soil layers that do not require human reinforcement. Artificial foundations require human reinforcement, and common methods include stone chip cushions, sand cushions, mixed lime soil backfill and compaction, etc.

[0003] Currently, most foundation reinforcement piles are made of steel cages, which are inserted into the ground and finally poured with concrete. Most of these reinforcement piles are columnar, and their contact with the mud layer is not strong enough, which can easily lead to collapse. Utility Model Content

[0004] The utility model aims to provide a foundation reinforcement pile to solve the problem that the contact with the mud layer is not firm enough and collapse is easy to occur.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a foundation reinforcement pile, comprising a fixed rod and four arc-shaped push plates arranged around the fixed rod, the top of the fixed rod is provided with a groove, a movable rod is slidably inserted in the groove, a sliding sleeve is slidably sleeved on the outside of the fixed rod, the top of the sliding sleeve is fixedly connected to the top of the movable rod, four inner plates are fixedly installed on the outer wall of the sliding sleeve, the four inner plates are equidistantly distributed around the axis of the sliding sleeve, three evenly distributed support rods are rotatably installed on the side of the inner plate through a rotating shaft, an outer plate is provided on the inner wall of the arc-shaped push plate at a position corresponding to the inner plate, and the end of the support rod away from the inner plate is rotatably connected to the outer plate through a rotating shaft.

[0006] The bottoms of the four arc-shaped push plates are all fixedly connected with drill bits, and the four drill bits are enclosed to form a conical pile tip.

[0007] Wherein, a spiral belt is fixedly connected to the bottom of the outer wall of the fixing rod, and a cone head is fixedly connected to the bottom of the fixing rod.

[0008] The inner wall of the sliding sleeve is provided with a first sliding rail, the outer wall of the fixing rod is provided with a first sliding block matched with the first sliding rail, and the sliding sleeve is slidably sleeved outside the fixing rod through the first sliding block matched with the first sliding rail.

[0009] The inner wall of the groove is provided with a second slide rail, the outer wall of the movable rod is provided with a second slider matched with the second slide rail, and the movable rod is slidably sleeved in the groove through the second slider matched with the second slide rail.

[0010] Among them, when the lowest ends of the four drill bits are in contact, the three support rods are in an inclined state, and the top of the outer plate is located below the top of the inner plate. When the lowest ends of the four drill bits are separated to the maximum distance, the three support rods are in a horizontal state, and the outer plate is flush with the inner plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model provides a conical pile tip surrounded by a drill bit, which makes it easy to drive the reinforcement pile body into the foundation, and then drives the sliding sleeve to slide on the fixed rod through the movable rod. When the bottom end of the movable rod approaches the bottom end of the groove, the support rod rotates from an inclined state to a parallel state, and the support rod drives the outer plate and the arc-shaped push plate to move outward and upward. When the circumference of the reinforcement pile expands outward to the maximum limit, the contact area between the reinforcement pile and the foundation becomes larger, thereby improving the supporting stability of the reinforcement pile body. Then, concrete is poured to fix the top position of the pile body, increase the contact area between the pile body and the foundation, and improve the stability of the reinforcement pile body and the foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic cross-sectional structure diagram of a foundation reinforcement pile in the first state of the utility model;

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of a foundation reinforcement pile in the second state of the utility model;

[0015] Figure 3 This is a schematic diagram of a top view of the structure of a foundation reinforcement pile in the first state of the utility model;

[0016] Figure 4 This is a schematic diagram of a top view of the structure of a foundation reinforcement pile in the second state of the utility model;

[0017] Figure 5 This is a schematic diagram of a partial axonometric structure of a foundation reinforcement pile of the utility model;

[0018] Figure 6 for Figure 2 Enlarged structural diagram at A in the middle.

[0019] In the figure: 10, arc-shaped push plate; 11, outer plate; 12, drill bit; 20, support rod; 21, inner plate; 30, sliding sleeve; 31, first slide rail; 32, first slider; 40, movable rod; 41, second slide rail; 42, second slider; 50, fixed rod; 51, groove; 52, cone head; 53, spiral belt. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] See also Figure 1-6 The utility model provides a technical solution: a foundation reinforcement pile, including a fixed rod 50 and four arc-shaped push plates 10 arranged around the fixed rod 50, the four arc-shaped push plates 10 are adjacent to each other to form a cylinder, a groove 51 is opened on the top of the fixed rod 50, a movable rod 40 is slidably inserted in the groove 51, a sliding sleeve 30 is slidably sleeved on the outer side of the fixed rod 50, the top of the sliding sleeve 30 is fixedly connected to the top of the movable rod 40, and four inner plates 21 are fixedly installed on the outer wall of the sliding sleeve 30, and the four inner plates 21 surround the sliding sleeve 30. The axes are equidistantly distributed, and three evenly distributed support rods 20 are installed on the side of the inner plate 21 through a rotating shaft. An outer plate 11 is provided on the inner wall of the arc-shaped push plate 10 corresponding to the position of the inner plate 21. The end of the support rod 20 away from the inner plate 21 is rotatably connected to the outer plate 11 through a rotating shaft. When the bottom end of the movable rod 40 approaches the bottom end of the groove 51, the support rod 20 rotates from an inclined state to a parallel state, and the support rod 20 drives the outer plate 11 and the arc-shaped push plate 10 to move outward and upward, so as to achieve the purpose of outward expansion of the circumference of the reinforcement pile.

[0022] The bottoms of the four arc-shaped push plates 10 are fixedly connected with drill bits 12, and the four drill bits 12 enclose a conical pile tip to facilitate driving the reinforcement pile body into the foundation. The arc-shaped push plates 10 and the drill bits 12 are an integrated structure.

[0023] Among them, a spiral belt 53 is fixedly connected to the bottom of the outer wall of the fixing rod 50, and a cone head 52 is fixedly connected to the bottom of the fixing rod 50, which can increase the contact area between the fixing rod 50 and the foundation as a whole, prevent the fixing rod 50 from sinking itself, and provide support for the sliding sleeve 30, thereby improving the overall anti-settling performance of the reinforcement pile, and further improving the overall support performance of the reinforcement pile.

[0024] Among them, a first slide rail 31 is opened on the inner wall of the sliding sleeve 30, and a first slider 32 matched with the first slide rail 31 is provided on the outer wall of the fixed rod 50. The sliding sleeve 30 is slidably sleeved on the outside of the fixed rod 50 through the first slider 32 and the first slide rail 31. The sliding sleeve 30 slides up and down on the fixed rod 50, driving the inner plate 21 and the support rod 20 to slide, so that the outer plate 11 drives the arc push plate 10 to move.

[0025] Among them, a second slide rail 41 is opened on the inner wall of the groove 51, and a second slider 42 matching with the second slide rail 41 is provided on the outer wall of the movable rod 40. The movable rod 40 is slidably sleeved in the groove 51 through the second slider 42 and the second slide rail 41. When the bottom end of the movable rod 40 approaches the bottom end of the groove 51, the support rod 20 rotates from an inclined state to a parallel state, and the circumference of the reinforcement pile expands outward to the maximum, so that the fixing effect is better and more reliable, and the operation is simple and convenient.

[0026] Among them, when the lowest ends of the four drill bits 12 are in contact, the three support rods 20 are in an inclined state, and the top of the outer plate 11 is located below the top of the inner plate 21. When the lowest ends of the four drill bits 12 are separated to the maximum distance, the three support rods 20 are in a horizontal state, and the outer plate 11 is flush with the inner plate 21. The support rods 20 rotate from an inclined state to a parallel state, and the support rods 20 drive the outer plate 11 and the arc-shaped push plate 10 to move outward and upward, so that the circumference of the reinforcement pile is expanded, and then poured with concrete, it is convenient to fix the top position of the pile body and increase the contact area between the pile body and the foundation.

[0027] Working principle: When in use, by setting the conical pile tip surrounded by the drill bit 12, it is convenient to drive the reinforcement pile body into the foundation, and then the movable rod 40 drives the sliding sleeve 30 to slide on the fixed rod 50. When the bottom end of the movable rod 40 approaches the bottom end of the groove 51, the support rod 20 rotates from an inclined state to a parallel state, and the support rod 20 drives the outer plate 11 and the arc-shaped push plate 10 to move outward and upward. When the circumference of the reinforcement pile expands outward to the maximum, the contact area between the reinforcement pile and the foundation becomes larger, thereby improving the support stability of the reinforcement pile body. Then, concrete is poured to fix the top position of the pile body, increase the contact area between the pile body and the foundation, and improve the stability of the reinforcement pile body and the foundation.

[0028] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. A foundation reinforcement pile, comprising a fixing rod (50) and four arc-shaped push plates (10) arranged around the fixing rod (50), characterized in that: A groove (51) is provided at the top of the fixed rod (50), a movable rod (40) is slidably inserted in the groove (51), a sliding sleeve (30) is slidably sleeved on the outside of the fixed rod (50), the top of the sliding sleeve (30) is fixedly connected to the top of the movable rod (40), four inner plates (21) are fixedly installed on the outer wall of the sliding sleeve (30), the four inner plates (21) are equidistantly distributed around the axis of the sliding sleeve (30), three evenly distributed support rods (20) are rotatably installed on the side of the inner plate (21) via a rotating shaft, an outer plate (11) is provided on the inner wall of the arc-shaped push plate (10) at a position corresponding to the inner plate (21), and one end of the support rod (20) away from the inner plate (21) is rotatably connected to the outer plate (11) via a rotating shaft.

2. A foundation reinforcement pile according to claim 1, characterized in that: The bottoms of the four arc-shaped push plates (10) are all fixedly connected with drill bits (12), and the four drill bits (12) are enclosed to form a conical pile tip.

3. A foundation reinforcement pile according to claim 1, characterized in that: A spiral belt (53) is fixedly connected to the bottom of the outer wall of the fixing rod (50), and a cone head (52) is fixedly connected to the bottom of the fixing rod (50).

4. A foundation reinforcement pile according to claim 1, characterized in that: The inner wall of the sliding sleeve (30) is provided with a first sliding rail (31), the outer wall of the fixing rod (50) is provided with a first sliding block (32) that matches the first sliding rail (31), and the sliding sleeve (30) is slidably sleeved outside the fixing rod (50) through the first sliding block (32) that matches the first sliding rail (31).

5. The foundation reinforcement pile according to claim 1, characterized in that: The inner wall of the groove (51) is provided with a second slide rail (41), the outer wall of the movable rod (40) is provided with a second slider (42) that matches the second slide rail (41), and the movable rod (40) is slidably sleeved in the groove (51) through the second slider (42) that matches the second slide rail (41).

6. A foundation reinforcement pile according to claim 2, characterized in that: When the lowest ends of the four drill bits (12) are in contact, the three support rods (20) are in an inclined state, and the top end of the outer plate (11) is located below the top end of the inner plate (21); when the lowest ends of the four drill bits (12) are separated to a maximum distance, the three support rods (20) are in a horizontal state, and the outer plate (11) is flush with the inner plate (21).

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