CN212535276U

CN212535276U - Simple pile foundation in soft soil layer

Info

Publication number: CN212535276U
Application number: CN201922200267.6U
Authority: CN
Inventors: 要粮安; 谢强; 马赟; 方守裕; 李利民
Original assignee: Jinzhong Power Supply Co of State Grid Shanxi Electric Power Co Ltd
Current assignee: Jinzhong Power Supply Co of State Grid Shanxi Electric Power Co Ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2021-02-12
Anticipated expiration: 2029-12-10

Abstract

The utility model relates to an electric wire netting outdoor operations technical field especially relates to a simple and easy pile foundation in soft soil layer, including stake pole, ball screw, ball nut, extension rod, slider, loading board, pile foundation, worm wheel, worm and bull stick, the mounting groove has been seted up to the inside of stake pole, the intermediate position rotation that the bearing was passed through to ball screw's one end and mounting groove inner wall bottom is connected, ball nut is connected with ball screw's surface transmission, ball nut be the surface around respectively with four one side fixed connection of hinge. The utility model discloses reached the purpose that improves pile foundation stability in soft soil layer, had that structural design is reasonable, bearing capacity is strong, structural stability is strong, bending resistance shear strength is high, effectively reduce the volume of subsiding, subsides more even, horizontal load bearing capacity is strong, reduces lateral displacement, joint strength is high, the advantage that resistance to plucking intensity is high, the practicality is strong, overall structure is simple simultaneously, can satisfy in the user demand.

Description

Simple pile foundation in soft soil layer

Technical Field

The utility model relates to a power grid outdoor operations technical field especially relates to a simple and easy pile foundation of soft soil layer.

Background

The whole of the substation and the transmission and distribution line of various voltages in the power system is called a power grid. The system comprises three units of power transformation, power transmission and power distribution. The task of the power grid is to transmit and distribute electric energy and change voltage, and the erection of the power transmission grid is mainly to erect the power transmission tower at high altitude, and the power transmission tower needs to be climbed in daily maintenance and repair work.

When the outdoor power grid overhauls and erects interim cable, need bury simple and easy pile foundation underground at ground and form to support fixedly, because the electric power transmission system span that interim cable constitutes is great, therefore the stability of pile foundation directly influences the stability after the cable erection, wherein the pile foundation construction on soft soil layer is a big difficult problem that influences the pile foundation steadiness always, because soft area soil layer is comparatively soft, the pile foundation takes place to subside easily, and take place the slope easily when the pile foundation bears great horizontal load, influence superstructure's stability.

Disclosure of Invention

The utility model provides a not enough to prior art, the utility model provides a simple and easy pile foundation of soft soil layer has reached the purpose that improves pile foundation stability in soft soil layer, has that structural design is reasonable, bearing capacity is strong, structural stability is strong, bending resistance shear strength is high, effectively reduce the volume of subsiding, subsides more evenly, horizontal load bearing capacity is strong, reduce lateral displacement, joint strength is high, the advantage that resistance to plucking intensity is high, the practicality is strong, overall structure is simple simultaneously, can satisfy in the user demand.

In order to realize the technical problem, the utility model provides a following technical scheme:

the utility model provides a simple and easy pile foundation in soft soil layer, includes stake pole, ball screw, ball nut, lid shape locating part, extension rod, slider, loading board, pile foundation, worm wheel, worm and bull stick, the mounting groove has been seted up to the inside of stake pole, ball screw's one end is passed through the intermediate position rotation of bearing and mounting groove inner wall bottom and is connected, ball nut is connected with ball screw's surface transmission, ball nut circumference is provided with the extension rod, the passageway has all been seted up all around the stake pole, the passageway is located the bottom of mounting groove inside wall and rather than being in the feed through state, the extension rod leans on the lower part to be located in the passageway, the extension rod upper end with ball nut connects and restricts its rotation.

Further, the cross-section of extension rod is half circular arc form, the extension rod is equidistance evenly distributed for the periphery of stake pole.

Further, the shape of passageway and the shape phase-match of extension rod, the passageway sets up for the slope, and the top of passageway and the contained angle of horizontal plane are sixty degrees.

Further, the bottom of stake pole is provided with most advanced, the top of stake pole and the intermediate position fixed connection of loading board bottom, the intermediate position at loading board top and the bottom of pile foundation are detachable and are connected.

Further, a placing groove is formed in the pile foundation, the top of the ball screw sequentially extends into the placing groove, and the top of the ball screw is rotatably connected with the middle position of the top of the inner wall of the placing groove through a bearing.

Furthermore, the upper part of the outer surface of the ball screw is fixedly connected with the inner side wall of the worm wheel through a flat key, two sides of the inner wall of the placing groove are respectively connected with two ends of the worm in a rotating mode through bearings, and the worm is in meshed transmission connection with the worm wheel.

Further, ball nut circumference fixed mounting has the clamping ring, the clamping ring bottom is provided with lid shape locating part, lid shape locating part includes the base, the base bottom surface corresponds the extension rod is provided with radial spacing groove, lid shape locating part top surface edge sets up the spacing ring, works as lid shape locating part falls to when the mounting groove bottom, the spacing ring height is higher than the passageway is in the inside trompil height of mounting groove, the open mounting hole in the middle part of the base, the mounting hole internal diameter is greater than the ball nut external diameter, is less than the clamping ring internal diameter, clamping ring bottom fixed mounting has vertical guide plate, the base corresponds the position and opens there is the guide slot.

Further, the outer opening of passageway department is provided with the closure plate, the closure plate can avoid the extension rod to deviate from the passageway under not receiving ball nut pushing down the condition.

Further, the stake pole in the outer trompil height of passageway sets up the closure plate mounting groove, the closure plate is annular banding, fixed mounting in the closure plate mounting groove.

The utility model discloses possess following beneficial effect:

1. the utility model discloses a clockwise rotates ball screw, because the rotary motion who mutually supports between ball screw and the ball nut turns into linear motion, ball nut linear motion downwards this moment, through the clamping ring, the lid locating part makes the extension rod be in the synchronous motion state when ball nut moves downwards, the extension rod passes through the passageway and extends to all around, and be in sixty degrees downward sloping state all the time and insert peripheral soil texture in situ, consequently can grab and attach to soil texture formation all around, make the structure can bear bigger horizontal thrust, reduce the structure moment of flexure, make structure stability, and can play when arranging the use in succession and grab and attach the effect to peripheral soil, avoid appearing leading to the pile foundation to take place the phenomenon of subsiding because soil texture is soft, thereby the stability demand of cable erection has been satisfied.

2. The utility model discloses because the setting of slider and spout, through the slider in the inside sliding action of spout, the extension action that can make the extension rod obtains the orbit restriction, consequently, the stability of extension rod motion has been improved, simultaneously can make the extension rod remain the angle slope of sixty degrees throughout, consequently can form a right angled triangle with each face of stake pole periphery in, thereby can improve the stability of whole pile foundation, improve anti-wind and anti-falling performance, and the half-circular arc structure of cooperation extension rod, can reduce when extending and the area of contact between the soil texture layer, consequently can be convenient for and the soil texture layer between insert, self can keep good mechanical strength simultaneously.

3. The utility model discloses a pile foundation can take out worm gear, lead screw device and reuse after finishing erectting, has reduced the material loss, very big reduction construction cost.

4. The utility model has the advantages of structural design is reasonable, bearing capacity is strong, and structural stability is strong, bending resistance shear strength is high, effectively reduce the volume of subsiding, subsides more evenly, horizontal load bearing capacity is strong, reduces lateral displacement, joint strength is high, and resistance to plucking intensity is high, the practicality is strong, and overall structure is simple simultaneously, can satisfy in the user demand.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the pile rod of the present invention;

FIG. 3 is a schematic view of a single structure of the extension rod of the present invention;

fig. 4 is a schematic cross-sectional view of the structural pile foundation of the present invention;

FIG. 5 is a schematic view of the top view structure of the cap-shaped position-limiting member of the present invention;

fig. 6 is a schematic view of the structure of the compression ring according to the present invention;

FIG. 7 is a schematic structural view of the ball screw during pressing down process of the present invention;

fig. 8 is a schematic structural view of the present invention after pressing;

fig. 9 is a schematic structural view of the screw rod nut after being taken out.

In the figure: 1. a pile rod; 101. blocking sheets; 102. a plug sheet mounting groove; 2. mounting grooves; 3. a ball screw; 4. a ball nut; 41. pressing a ring; 42. a guide plate; 5. a cap-shaped stopper; 51. a base; 52. a limiting edge; 53. a limiting groove; 54. a limiting ring 55 and a mounting hole; 56. a guide groove; 6. an extension rod; 7. a channel; 8. a slider; 9. a chute; 10. a carrier plate; 11. a pile foundation; 12. a placement groove; 13. a worm gear; 14. a worm; 15. and (4) rotating the rod.

Detailed Description

As shown in figures 1 and 2, the simple pile foundation of the soft soil layer comprises a pile rod 1, a ball screw 3, a ball nut 4, a cap-shaped limiting part 5, extension rods 6, a sliding block 8, a bearing plate 10, a pile foundation 11, a worm wheel 13, a worm 14 and a rotating rod 15, wherein the pile rod 1 is internally provided with a mounting groove 2, one end of the ball screw 3 is rotatably connected with the middle position at the bottom of the inner wall of the mounting groove 2 through a bearing, the ball nut 4 is in transmission connection with the outer surface of the ball screw 3, the ball nut 4 is circumferentially welded with a pressing ring 41, the bottom of the pressing ring 41 is provided with the cap-shaped limiting part 5, the cap-shaped limiting part 5 comprises a base 51, four channels 7 are uniformly distributed at the same height in the circumference of the pile rod 1, the lower parts of the four extension rods 6 are arranged in the channels 7, the upper end parts of the four extension rods are connected with the bottom of the cap-shaped limiting, spacing groove 53 comprises two spacing arris 52 that weld in the base 51 bottom surface, 6 top embedding spacing grooves 53 of extension rod, can prolong spacing groove 53 and slide, open at the base 51 middle part has mounting hole 55, the mounting hole 55 internal diameter is greater than ball nut 4 external diameter, be less than clamping ring 41 internal diameter, base 51 top surface edge is provided with spacing ring 54, when lid shape locating part 5 falls to mounting groove 2 bottom, spacing ring 54 height is higher than the trompil height of passageway 7 in the mounting groove inside, spacing ring 54 can also make lid shape locating part 5 keep the horizontality in mounting groove 2, base 51 still is provided with guide slot 56, as shown in fig. 6, clamping ring 41 bottom vertically sets up a guide plate 42 that matches with guide slot 56 shape position, when guide plate 42 inserts in guide slot 56, can avoid clamping ring 41 and lid shape locating part 5 to take place the mutual rotation.

The channel 7 is positioned at the bottom of the inner side wall of the mounting groove 2 and is in a communicated state with the bottom, the top of the inner wall of the channel 7 is fixedly connected with the top of the sliding block 8, as shown in figure 3, the section of the extension rod 6 is in a semi-circular arc shape and is provided with a sliding groove 9 matched with the sliding block 8 for use, the ball screw 3 is rotated clockwise, the rotary motion matched with each other between the ball screw 3 and the ball nut 4 is converted into linear motion, at the moment, the ball nut 4 moves linearly downwards, and simultaneously, the four extension rods 6 are in a synchronous motion state when the ball nut 4 moves downwards, so that the four extension rods 6 all extend towards the periphery through the channel 7 and are always inserted into the surrounding soil layer in a sixty-degree downwards inclined state, thereby being capable of forming a grab attachment on the surrounding soil layer, improving the contact area and improving, make the structure can bear great horizontal thrust, reduce the structure moment of flexure, make structure holding stability, reduce the lateral displacement volume to can improve the straight line bearing capacity of whole pile foundation 11, avoid appearing leading to pile foundation 11 to take place the phenomenon of subsiding because the soil property is soft, thereby satisfied the stability demand that the cable erect.

The section of the extension rod 6 is semi-circular arc shape, and one end of the extension rod 6 positioned in the channel 7 is a tip part, as shown in fig. 3. The four extension rods 6 are uniformly distributed around the pile rod 1 at equal intervals, the shape of the channel 7 is matched with that of the extension rods 6, the channel 7 is arranged in an inclined mode, the included angle between the top of the channel 7 and the horizontal plane is sixty degrees, due to the arrangement of the sliding block 8 and the sliding groove 9, the extending action of the extension rods 6 can be limited by the sliding action of the sliding block 8 in the sliding groove 9, the moving stability of the extension rods 6 is improved, meanwhile, the extension rods 6 can always keep the sixty-degree angle inclination, a right triangle can be formed in each surface of the periphery of the pile rod 1, the stability of the whole pile foundation 11 can be improved, the wind resistance and the falling resistance are improved, the contact area between the extension rods and the soil layer can be reduced by matching with the semi-arc structure of the extension rods 6, and the insertion between the extension rods and the soil layer can be facilitated, while maintaining good mechanical strength by itself. The outer opening department of passageway 7 highly is provided with jam piece mounting groove 102, sets up jam piece 101 in the jam piece mounting groove 102, and jam piece 101 is the annular strip, and hardness is moderate, like the thin iron sheet, through bonding or welded fastening, when the pile foundation is moved or the pile vibrations, the extension rod 6 of jam piece in can avoiding the passageway 7 is deviate from, influences the pile effect.

The bottom of stake pole 1 is provided with most advanced, the intermediate position fixed connection of the top of stake pole 1 and the loading board 10 bottom, and the intermediate position at loading board 10 top is connected with the bottom of pile foundation 11, for dismantling between loading board 10 and the pile foundation 11 to be connected, like threaded connection or flange joint, open the through-hole that supplies ball screw 3 to pass through in the middle part of loading board 10, because above-mentioned connected mode is the connected mode commonly used in mechanical field, consequently not drawn in the picture. As shown in FIG. 4, a placing groove 12 is provided in the pile foundation 11, the top of the ball screw 3 sequentially extends into the placing groove 12, the top of the ball screw 3 is rotatably connected with the middle position of the top of the inner wall of the placing groove 12 through a bearing, the upper part of the outer surface of the ball screw 3 is fixedly connected with the inner side wall of the worm wheel 13 through a flat key, the two sides of the inner wall of the placing groove 12 are rotatably connected with the two ends of the worm 14 through bearings respectively, the worm 14 is in meshing transmission connection with the worm wheel 13, the right end of the worm 14 is fixedly connected with one end of the rotating rod 15, the other end of the rotating rod 15 extends to the outside of the right side of the pile foundation 11, the rotating rod 15 is Z-shaped, and the right side of the outer surface of the rotating rod 15 is sleeved with a protective sleeve. The connecting structure has the advantages of reducing lateral displacement, being high in connecting strength, high in pulling resistance and strong in practicability, and meanwhile, the whole structure is simple, and the using requirements can be met.

In the using process, the whole pile rod 1 is knocked into the soil layer by using a tool, the bottom of the bearing plate 10 is contacted with the ground at the moment, then the rotating rod 15 is rotated clockwise, the rotating rod 15 drives the worm wheel 13 to rotate through the worm 14 due to the meshing transmission connection state between the worm 14 and the worm wheel 13, the worm wheel 13 drives the whole ball screw 3 to rotate, the ball screw 3 is matched with the ball nut 4, the pressing ring is limited to rotate by the guide sheet 42 due to the fixed connection between the ball nut 4 and the pressing ring, the extending rod 6 is limited to rotate reversely by the limiting groove 53 at the bottom of the cap-shaped limiting part 5, so that the ball nut 4 is limited to rotate finally, the rotation of the ball screw 3 is converted into the downward linear motion of the ball nut 4, and meanwhile, the four extending rods 6 are in the synchronous motion state when the ball nut 4 moves downward, in the motion process, the limiting groove 53 outwards slides is followed at 6 tops of extension rod, four extension rods 6 all extend to all around through passageway 7 and break through closure plate 101 to be in sixty degrees downward sloping states all the time and insert in the peripheral soil texture layer, as shown in fig. 7, consequently can form to grab and attach to soil texture layer all around, improve area of contact, and the horizontal load bearing capacity of pile foundation 11 obtains promoting, makes the structure can bear great horizontal thrust, reduces the structure moment of flexure, makes the structure remain stability. When the ball nut 4 is at the lowest point, the extension rod 6 completely enters the channel 7, the limiting ring 54 blocks the channel 7, and the inward and outward displacement of the extension rod 6 is limited by the cover-shaped limiting part 5 and the sliding block 8, so that the extension rod is prevented from falling out of the channel 7 or retracting into the mounting groove, as shown in fig. 8.

As shown in fig. 9, after the pile foundation is installed, all the installation components in the ball screw 3, the ball nut 4 and the pile foundation 11 can be disassembled and reused, so that the material is effectively saved, as shown in fig. 9.

Ball nut matches there are four extension rods in this embodiment, and in practical application, the designer can adopt arbitrary quantity's extension rod according to local geological conditions, that is to say, the change of extension rod quantity falls into equally the utility model discloses a protection scope. Besides the above structure, the blocking piece 101 may also be another structure, such as an iron piece with a shape matching the outer hole of the channel 7, and spot-welded to the outer hole of the channel 7, so as to achieve the same effect. In order to increase the installation speed, the rotating rod 15 can be replaced by a power source such as a motor.

Claims

1. The utility model provides a simple and easy pile foundation in soft soil layer, includes stake pole (1), ball screw (3), ball nut (4), lid shape locating part (5), extension rod (6), slider (8), loading board (10), pile foundation (11), worm wheel (13), worm (14) and bull stick (15), its characterized in that: mounting groove (2) have been seted up to the inside of stake pole (1), the intermediate position of bearing and mounting groove (2) inner wall bottom is passed through to the one end of ball screw (3) rotates and is connected, ball nut (4) are connected with the surface transmission of ball screw (3), ball nut (4) circumference is provided with extension rod (6), all seted up passageway (7) around stake pole (1), passageway (7) are located the bottom of mounting groove (2) inside wall and are in the feed through state rather than, extension rod (6) are located by the lower part in passageway (7), extension rod (6) upper end with ball nut (4) are connected and are restricted its rotation.

2. The loose and soft soil layer simple pile foundation of claim 1, wherein: the cross-section of extension rod (6) is the semicircle shape, extension rod (6) are equidistance evenly distributed for around stake pole (1).

3. The loose and soft soil layer simple pile foundation of claim 1, wherein: the shape of passageway (7) and the shape phase-match of extension rod (6), passageway (7) are the slope setting, and the top of passageway (7) and the contained angle of horizontal plane are sixty degrees.

4. The loose and soft soil layer simple pile foundation of claim 1, wherein: the bottom of stake pole (1) is provided with most advanced, the top of stake pole (1) and the intermediate position fixed connection of loading board (10) bottom, the intermediate position at loading board (10) top and the bottom of pile foundation (11) are detachable and are connected.

5. The loose and soft soil layer simple pile foundation of claim 1, wherein: the pile foundation is characterized in that a placing groove (12) is formed in the pile foundation (11), the top of the ball screw (3) sequentially extends to the inside of the placing groove (12), and the top of the ball screw (3) is rotatably connected with the middle position of the top of the inner wall of the placing groove (12) through a bearing.

6. The loose and soft soil layer simple pile foundation of claim 5, wherein: the upper portion of the outer surface of the ball screw (3) is fixedly connected with the inner side wall of the worm wheel (13) through a flat key, the two sides of the inner wall of the placing groove (12) are respectively connected with the two ends of the worm (14) in a rotating mode through bearings, and the worm (14) is connected with the worm wheel (13) in a meshing transmission mode.

7. The soft soil layer simple pile foundation of any one of claims 1 to 6, wherein: a pressing ring (41) is fixedly arranged on the circumferential direction of the ball nut (4), a cover-shaped limiting piece (5) is arranged at the bottom of the pressing ring (41), the cover-shaped limiting part (5) comprises a base (51), the bottom surface of the base (51) is provided with a radial limiting groove (53) corresponding to the extension rod (6), the edge of the top surface of the cover-shaped limiting part (5) is provided with a limiting ring (54), when the cap-shaped limiting piece (5) is lowered to the bottom of the mounting groove (2), the height of the limiting ring (54) is higher than the height of the channel (7) at the opening of the inner part of the mounting groove, the middle part of the base (51) is provided with a mounting hole (55), the inner diameter of the mounting hole (55) is larger than the outer diameter of the ball nut (4) and smaller than the inner diameter of the pressure ring (41), the clamping ring bottom fixed mounting has vertical guide piece (42), base (51) correspond the position and open there is guide slot (56).

8. The loose and soft soil layer simple pile foundation of claim 7, wherein: the outer opening of passageway (7) is provided with closure plate (101), closure plate (101) can avoid extension rod (6) to deviate from passageway (7) under the condition of not receiving ball nut (4) to push down.

9. The loose and soft soil layer simple pile foundation of claim 7, wherein: the pile rod (1) is arranged in a blocking piece mounting groove (102) at the height of the outer opening of the channel (7), and the blocking piece (101) is in an annular band shape and is fixedly mounted in the blocking piece mounting groove (102).