CN111926816A

CN111926816A - Piling stabilization protection equipment for construction site

Info

Publication number: CN111926816A
Application number: CN202010818855.0A
Authority: CN
Inventors: 许建华; 高晓霞; 顾建东
Original assignee: Aohu Construction Group Co ltd
Current assignee: Aohu Construction Group Co ltd
Priority date: 2018-11-26
Filing date: 2018-11-26
Publication date: 2020-11-13
Also published as: CN109577329B; CN109577329A

Abstract

The invention belongs to the field of buildings, and particularly relates to piling stabilization protection equipment for a construction site, which comprises a positioning ring, a first supporting mechanism, a second supporting mechanism, a third supporting mechanism and the like, wherein the positioning ring is nested at the upper end of a cement pile and is fixed on the cement pile through a fastening bolt; in the process of piling by the pile driver, the first support mechanism, the second support mechanism and the third support mechanism in the cement pile stabilizing device can contract along with the downward movement of the cement pile; if the cement pile inclines at a certain angle before reaching a certain depth, the first supporting mechanism, the second supporting mechanism and the third supporting mechanism in the cement pile stabilizing device stop contracting at the same time, and further the cement pile is prevented from further inclining; at the moment, even if the pile driver continues to beat the cement pile, the cement pile can not continue to move downwards; and the cement pile can be continuously beaten to reach a certain depth only after the verticality of the cement pile is adjusted.

Description

Piling stabilization protection equipment for construction site

Technical Field

The invention belongs to the field of buildings, and particularly relates to piling stabilizing and protecting equipment for a construction site.

Background

At present, two piling modes used in the traditional construction site are provided, wherein one mode is to drill a hole on the ground in advance, then insert one end of a cement pile into the hole through a crane and then hammer the cement pile downwards by using a mechanical hammer; the other method is that one end of the cement pile is fixed by a mechanical arm with a vibration function, and the cement pile is vertically inserted into the ground in a vibration mode; in the two modes, the problem of inclination of the cement pile exists in the process that the cement pile moves to the ground surface; the absence of devices for correcting the inclination of the cement piles during their insertion beneath the ground may result in the cement piles inserted into the ground greatly impairing their function of stabilizing the foundation due to the inclination, which is detrimental to the permanent stabilization of the building upon which they are based.

The present invention is directed to a piling stabilization protection device for construction sites that solves the above problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses piling stabilization protection equipment for a construction site, which is realized by adopting the following technical scheme.

In the description of the present invention, it should be noted that the terms "inside", "below", "upper" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention usually place when using, and are only used for convenience of description and simplification of description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation or be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

A piling stabilization protection device for a construction site, characterized in that: the device comprises a positioning ring, an annular notch, a positioning threaded hole, a trigger ring, a rack sliding chute, a gear groove, a first shaft hole, an annular trapezoidal sliding chute, an annular trapezoidal sliding strip, a gear ring, a second gear, a first transmission shaft, a first gear, a transmission rack, a first reset spring, a first supporting mechanism, a second supporting mechanism and a third supporting mechanism, wherein the annular notch is formed in the upper end of the outer circular surface of the positioning ring along the circumferential direction, and is communicated with the upper end surface of the positioning ring; three positioning threaded holes are uniformly formed in the side wall of the annular notch along the circumferential direction; the positioning ring is nested at the upper end of the cement pile and is fixed on the cement pile through a fastening bolt; three rack sliding grooves are uniformly formed in the inner circular surface of the trigger ring along the circumferential direction of the trigger ring, and the rack sliding grooves are overlapped with the radius of the trigger ring; a gear groove is formed in one side wall of each rack sliding groove; a first through shaft hole is formed in the lower end face of the gear groove; the three first shaft holes are uniformly distributed along the circumference of the lower end face of the trigger ring; an annular trapezoidal sliding groove is formed in the lower end face of the trigger ring around the central axis of the trigger ring, and the annular trapezoidal sliding groove is located on the outer side of a circle where the three first shaft holes are located; the inner circle surface and the lower end surface of the gear ring are both tooth surfaces; the upper end surface of the gear ring is provided with an annular trapezoidal sliding strip; the gear ring is arranged on the lower end surface of the trigger ring through the sliding fit of the annular trapezoidal sliding strip and the annular trapezoidal sliding groove; the three first transmission shafts are respectively installed in the first shaft holes in a matching way through bearings of the outer circular surfaces of the three first transmission shafts and the inner circular surfaces of the corresponding first shaft holes, one end of each first transmission shaft is located in the corresponding gear groove, and the other end of each first transmission shaft extends out of the corresponding first shaft hole and is located at the lower end of the trigger ring; the three first gears are respectively arranged on one end of the corresponding first transmission shaft, which is positioned in the gear groove; the three second gears are respectively arranged on the corresponding first transmission shafts and positioned at one end of the lower end of the trigger ring; the three second gears are simultaneously meshed with the inner circle tooth surface of the gear ring; the three transmission racks are respectively inserted into the three rack sliding grooves, and each transmission rack is meshed with the corresponding first gear; the three first return springs are respectively positioned in the three rack sliding grooves; for each first return spring, one end of the first return spring is connected with the end face of the corresponding transmission rack, and the other end of the first return spring is connected with the inner wall of the rack sliding groove; the triggering ring is nested on the cement pile, and the upper end surface of the triggering ring is in contact fit with the lower end surface of the positioning ring; the first supporting mechanism, the second supporting mechanism and the third supporting mechanism are uniformly arranged on the lower end face of the trigger ring in the circumferential direction around the central axis of the trigger ring, and the first supporting mechanism, the second supporting mechanism and the third supporting mechanism are positioned on the outer side of the gear ring; the first supporting mechanism, the second supporting mechanism and the third supporting mechanism are matched with the gear ring at the same time; and one ends of the first support mechanism, the second support mechanism and the third support mechanism which are not connected with the trigger ring are respectively fixed on the ground around the cement pile.

The internal structures of the first support mechanism, the second support mechanism and the third support mechanism are completely the same; for the first supporting mechanism, the first supporting mechanism comprises a fixed seat, a transmission groove, a first pin hole, a second shaft hole, a telescopic rod, a transmission notch, a first rod groove, a ring groove, a third gear, a second transmission shaft, a universal joint component, a transmission rod, a rotating ring, a top block, a second rod groove, a rotating round block, a first limiting block, a second limiting block, a telescopic sleeve, a limiting sliding cavity, a telescopic groove, a second pin hole, a U-shaped support, a positioning plate, a positioning tooth and a second reset spring, wherein the transmission groove is formed in one side end face of the fixed seat and is communicated with the lower end face of the fixed seat; a second shaft hole is formed in the center of the side end face of the fixed seat opposite to the side end face provided with the transmission groove, and the second shaft hole is communicated with the transmission groove; two side end faces of the fixed seat adjacent to the side end face provided with the transmission groove are respectively provided with a first pin hole with the same central axis; the fixed seat is fixedly connected with the lower end face of the trigger ring through the upper end face of the fixed seat, and the side end face of the fixed seat, which is provided with the second shaft hole, is close to the outer circular face of the gear ring; the central axis of the second shaft hole is vertical to the excircle surface of the gear ring; one end of the telescopic rod is provided with a transmission notch; a first rod groove is formed in the center of the end face of one end, which is not provided with the transmission notch, of the telescopic rod, and the first rod groove is communicated with the transmission notch; a ring groove is formed in the inner circular surface of the first rod groove along the circumferential direction; one end of the telescopic rod, which is provided with a transmission notch, is arranged in a transmission groove of the fixed seat through a pin, and the telescopic rod swings around the central axis of the first pin hole; the second transmission shaft is arranged on the fixed seat in a matching way through the bearing of the outer circular surface of the second transmission shaft and the inner circular surface of the second shaft hole, one end of the second transmission shaft is positioned in the transmission groove, and the other end of the second transmission shaft is positioned between the fixed seat and the toothed ring; the third gear is arranged at one end of the second transmission shaft close to the gear ring and is meshed with the tooth surface of the lower end of the gear ring; the universal joint component is positioned in the transmission notch on the telescopic rod and is arranged on the second transmission shaft; one end of the transmission rod is inserted into the first rod groove from bottom to top and enters the transmission notch to be connected with the universal joint component; the rotating ring is positioned in the ring groove and is nested on the transmission rod and fixedly connected with the transmission rod.

One end of the telescopic sleeve is provided with a second pin hole; a cylindrical telescopic groove is formed in the center of the end face of one end, which is not provided with the pin hole, of the telescopic sleeve; a cylindrical limiting sliding cavity is formed in the center of the bottom surface of the telescopic groove; the telescopic sleeve is nested on the telescopic rod through the sliding fit of the telescopic groove and the side wall of the telescopic rod; the top block is cylindrical, and a second rod groove is formed in the center of one end face of the top block; the bottom surface of the second rod groove is provided with a rotating groove; the top block is positioned in the limiting sliding cavity; the rotary round block is embedded into the rotary groove; one end of the transmission rod, which is positioned in the limiting sliding cavity, penetrates through the second rod groove and is fixedly connected with the rotating round block; the first limiting block is arranged on the transmission rod and is positioned in the limiting sliding cavity; one end of the first limiting block is fixedly connected with the outer circular surface of the transmission rod; the plurality of second limiting blocks are uniformly arranged on the inner circular surface of the limiting sliding cavity along the length direction of the telescopic sleeve, and the plurality of second limiting blocks are matched with the first limiting blocks; the second return spring is positioned in the limiting sliding cavity; one end of the second return spring is connected with the end face of the top block, and the other end of the second return spring is connected with the inner wall of the limiting sliding cavity; a U-shaped support is arranged on the upper end surface of the positioning plate; a plurality of positioning teeth are arranged on the lower end surface of the positioning plate; the U-shaped support is hinged with one end of the telescopic sleeve, which is provided with a second pin hole, through a pin; the positioning plate is fixed on the ground through a plurality of positioning teeth arranged on the positioning plate.

The universal joint assembly comprises a first cross universal joint, a telescopic column and a second cross universal joint, wherein the first cross universal joint and the second cross universal joint are connected through the telescopic column; one end of the first cross universal joint, which is not connected with the telescopic column, is connected with the second transmission shaft; one end of the second cross universal joint, which is connected with the telescopic column, is connected with one end of the transmission rod, which is positioned in the transmission notch.

As a further improvement of the technology, one end of the first limiting block, which is not connected with the transmission rod, is provided with a convex cambered surface, and the arc center of the convex cambered surface is positioned on the central axis of the transmission rod.

As a further improvement of the technology, an inclined plane is arranged on one side, matched with the second limiting block, of the first limiting block.

As a further improvement of the technology, one end of the second limiting block, which is not connected with the inner wall of the limiting sliding cavity in the telescopic sleeve, is provided with a concave arc surface, and the arc center of the concave arc surface is positioned on the central axis of the transmission rod.

As a further improvement of the technology, the arc radius of the concave arc surface on the second limiting block is between the section radius of the telescopic groove and the arc radius of the convex arc surface on the first limiting block.

As a further improvement of the technology, the arc radius of the convex arc surface on the first limiting block is larger than that of the concave arc surface on the second limiting block, and the arc radius of the convex arc surface on the first limiting block is smaller than that of the inner circle of the limiting sliding cavity.

As a further improvement of the present technology, the first return spring is a compression spring.

As a further improvement of the present technology, the second return spring is a compression spring.

In the invention, one end of the first limiting block, which is not connected with the transmission rod, is provided with a convex cambered surface, and the arc center of the convex cambered surface is positioned on the central axis of the transmission rod; one end of the second limiting block, which is not connected with the inner wall of the limiting sliding cavity in the telescopic sleeve, is provided with a concave arc surface, and the arc center of the concave arc surface is positioned on the central axis of the transmission rod; the arc radius of the concave arc surface on the second limiting block is between the section radius of the telescopic groove and the arc radius of the convex arc surface on the first limiting block; the arc radius of the convex arc surface on the first limiting block is larger than that of the concave arc surface on the second limiting block, and the arc radius of the convex arc surface on the first limiting block is smaller than that of the inner circle of the limiting sliding cavity, so that when a cement pile in the middle of the trigger ring inclines, the three transmission racks respectively slide and contract inwards along the corresponding rack sliding grooves under the action of the side surface of the cement pile; the transmission rack drives a second gear which is coaxial with the first gear to rotate through a first gear meshed with the transmission rack; the second gear drives the gear ring to rotate in the same direction; the gear ring drives the second transmission shaft to rotate through a third gear meshed with the gear ring; the second transmission shaft drives the first cross universal joint connected with the second transmission shaft to rotate; the first cross universal joint drives the second cross universal joint to rotate through the telescopic column; the second cross universal joint drives a first limiting block arranged on the second cross universal joint to swing around the central axis of the transmission rod to a second limiting block arranged on the inner wall of the limiting sliding cavity through the transmission rod connected with the second cross universal joint, and the rotating round block is driven by the transmission rod to rotate in the top block; meanwhile, the telescopic sleeve contracts and slides for a certain distance along the telescopic rod; because the arc radius of the concave arc surface on the second limiting block is between the section radius of the telescopic groove and the arc radius of the convex arc surface on the first limiting block, the arc radius of the convex arc surface on the first limiting block is larger than the concave arc surface on the second limiting block, and the arc radius of the convex arc surface on the first limiting block is smaller than the inner circle radius of the limiting sliding cavity, when the telescopic rod meets the second limiting block, the second limiting block does not form a barrier to the contraction movement of the telescopic sleeve; when the first limiting block swings, the inner wall of the limiting chute does not form a barrier to the swing of the first limiting block; when the first limiting block is placed between the two second limiting blocks, the first limiting block is matched with the second limiting blocks and obstructs the contraction movement of the telescopic sleeve along the telescopic rod, the telescopic sleeve stops contracting movement under the limitation of the first limiting block and the second limiting blocks, the first supporting mechanism, the second supporting mechanism and the third supporting mechanism do not contract any more, the cement pile does not incline any further, the cement pile continues to be hammered, and the cement pile does not move downwards under the common supporting action of the first supporting mechanism, the second supporting mechanism and the third supporting mechanism; and after the cement pile is corrected to the vertical position, continuously hammering the cement pile, and continuously moving the cement pile downwards to a certain depth.

The design purpose that the inclined plane is formed on one side, matched with the second limiting blocks, of the first limiting block is that when the first limiting block is driven by the transmission rod to swing towards the second limiting blocks and meet the second limiting blocks, the inclined plane is formed on one side, matched with the second limiting blocks, of the first limiting block, so that even if the first limiting block reaches a position between the two second limiting blocks, the first limiting block cannot cause a blocking phenomenon because the side face of the first limiting block meets the side face of the second limiting block.

Compared with the traditional transformer, the cement pile stabilizing device in the invention exists independently of the pile driver and is fixed on the cement pile; in the process of piling by the pile driver, the first support mechanism, the second support mechanism and the third support mechanism in the cement pile stabilizing device can contract along with the downward movement of the cement pile; removing the cement pile stabilizing device after the cement pile is driven into the ground to a certain depth; if the cement pile inclines at a certain angle before reaching a certain depth, the first supporting mechanism, the second supporting mechanism and the third supporting mechanism in the cement pile stabilizing device stop contracting at the same time, and further the cement pile is prevented from further inclining; at the moment, even if the pile driver continues to beat the cement pile, the cement pile can not continue to move downwards; only after the verticality of the cement pile is adjusted, the cement pile can be continuously beaten to reach a certain depth; the invention has simple structure and better use effect.

Drawings

Figure 1 is a schematic view of a cement pile stabilization device.

Fig. 2 is a schematic sectional bottom view of the apparatus.

Fig. 3 is a schematic partial cross-sectional view of the device.

Fig. 4 is a schematic view of the positioning ring and the trigger ring.

Fig. 5 is a schematic view of the positioning ring, the trigger ring, the toothed ring, the first gear, the second gear, and the transmission rack.

Fig. 6 is a schematic cross-sectional view of the positioning ring, the trigger ring, the toothed ring, the first gear, the second gear and the transmission rack.

Fig. 7 is a schematic cross-sectional view of the trigger ring, the transmission rack, the first return spring, the first gear and the first transmission shaft.

Figure 8 is a schematic view of a retaining ring.

Fig. 9 is a schematic view of a trigger ring.

Fig. 10 is a schematic cross-sectional view of a trigger ring.

Fig. 11 is a cross-sectional view of the rack runner, the gear groove and the first axial hole in the trigger ring.

Fig. 12 is a schematic view of a first support mechanism.

Fig. 13 is a schematic cross-sectional view of the fixing base, the third gear, the second transmission shaft, the first cross universal joint, the telescopic column, the second cross universal joint, the transmission rod and the telescopic rod.

Fig. 14 is a schematic section view of the cooperation of the telescopic rod, the telescopic sleeve, the transmission rod, the first limiting block, the second limiting block, the ejector block and the second return spring.

Fig. 15 is a schematic cross-sectional view of the top block, the telescopic sleeve, the second return spring, the U-shaped support and the positioning plate.

Fig. 16 is a schematic view of a fixing base.

FIG. 17 is a schematic view of a gimbal assembly.

Fig. 18 is a perspective schematic view of the telescoping rod.

Fig. 19 is a cross-sectional schematic view of the telescoping pole.

Fig. 20 is a schematic perspective view of a telescoping sleeve.

Fig. 21 is a schematic cross-sectional view of the bellows.

FIG. 22 is a schematic view of the U-shaped bracket and the positioning plate.

Fig. 23 is a schematic perspective view of a top block.

Fig. 24 is a schematic perspective cut away view of a top block.

Fig. 25 is a schematic view of the cooperation of the telescopic rod, the second limiting block, the first limiting block, the transmission rod and the top block.

Number designation in the figures: 1. a positioning ring; 2. a ring-shaped cut; 3. positioning the threaded hole; 4. a trigger ring; 5. a rack chute; 6. a gear groove; 7. a first shaft hole; 8. an annular trapezoidal chute; 9. an annular trapezoidal slide bar; 10. a toothed ring; 11. a second gear; 12. a first drive shaft; 13. a first gear; 14. a drive rack; 15. a first return spring; 16. a first support mechanism; 17. a second support mechanism; 18. a third support mechanism; 19. a fixed seat; 20. a transmission groove; 21. a first pin hole; 22. a second shaft hole; 23. a telescopic rod; 24. a second return spring; 25. a transmission notch; 26. a first rod groove; 27. a ring groove; 28. a third gear; 29. a second drive shaft; 30. a gimbal assembly; 31. a first cross universal joint; 32. a telescopic column; 33. a second cross gimbal; 34. a transmission rod; 35. a rotating ring; 36. a top block; 37. a second rod groove; 38. a rotating tank; 39. rotating the round block; 40. a first stopper; 41. a second limiting block; 42. a telescopic sleeve; 43. a limiting sliding cavity; 44. a telescopic groove; 45. a second pin hole; 46. a U-shaped support; 47. positioning a plate; 48. positioning teeth; 49. a bevel.

Detailed Description

As shown in fig. 1, 2 and 3, the device comprises a positioning ring 1, an annular notch 2, a positioning threaded hole 3, a trigger ring 4, a rack sliding groove 5, a gear groove 6, a first shaft hole 7, an annular trapezoidal sliding groove 8, an annular trapezoidal sliding strip 9, a gear ring 10, a second gear 11, a first transmission shaft 12, a first gear 13, a transmission rack 14, a first return spring 15, a first support mechanism 16, a second support mechanism 17 and a third support mechanism 18, wherein as shown in fig. 4 and 8, the annular notch 2 is formed in the upper end of the outer circumferential surface of the positioning ring 1 along the circumferential direction, and the annular notch 2 is communicated with the upper end surface of the positioning ring 1; three positioning threaded holes 3 are uniformly formed in the side wall of the annular notch 2 along the circumferential direction; as shown in fig. 1, a positioning ring 1 is nested at the upper end of a cement pile and is fixed on the cement pile through a fastening bolt; as shown in fig. 9 and 10, three rack sliding grooves 5 are uniformly formed on the inner circumferential surface of the trigger ring 4 along the circumferential direction, and the rack sliding grooves 5 are overlapped with the radius of the trigger ring 4; as shown in fig. 10 and 11, a gear groove 6 is formed in one side wall of each rack chute 5; a first shaft hole 7 which is through is arranged on the lower end surface of the gear groove 6; as shown in fig. 9, the three first shaft holes 7 are uniformly distributed along the circumference of the lower end surface of the trigger ring 4; an annular trapezoidal sliding groove 8 is formed in the lower end face of the trigger ring 4 around the central axis of the trigger ring, and the annular trapezoidal sliding groove 8 is located on the outer side of a circle where the three first shaft holes 7 are located; as shown in fig. 6, both the inner circumferential surface and the lower end surface of the ring gear 10 are tooth surfaces; the upper end surface of the gear ring 10 is provided with an annular trapezoidal sliding strip 9; the gear ring 10 is arranged on the lower end surface of the trigger ring 4 through the sliding fit of the annular trapezoidal sliding strip 9 and the annular trapezoidal sliding groove 8; the three first transmission shafts 12 are respectively installed in the first shaft holes 7 through the matching of the outer circular surfaces thereof and the bearings of the inner circular surfaces of the corresponding first shaft holes 7, one end of each first transmission shaft 12 is positioned in the corresponding gear groove 6, and the other end of each first transmission shaft 12 extends out of the corresponding first shaft hole 7 and is positioned at the lower end of the trigger ring 4; as shown in fig. 6 and 7, three first gears 13 are respectively mounted on one end of the corresponding first transmission shaft 12 located in the gear groove 6; as shown in fig. 5 and 6, three second gears 11 are respectively mounted on one end of the corresponding first transmission shaft 12 at the lower end of the trigger ring 4; the three second gears 11 are simultaneously meshed with the inner circular tooth surfaces of the gear ring 10; as shown in fig. 7, three transmission racks 14 are respectively inserted into the three rack sliding grooves 5, and each transmission rack 14 is engaged with a corresponding first gear 13; the three first return springs 15 are respectively positioned in the three rack sliding grooves 5; for each first return spring 15, one end thereof is connected with the end face of the corresponding transmission rack 14, and the other end thereof is connected with the inner wall of the rack chute 5; as shown in fig. 5 and 6, the trigger ring 4 is nested on the cement pile, and the upper end surface of the trigger ring is in contact fit with the lower end surface of the positioning ring 1; as shown in fig. 1 and 2, the first, second and third support mechanisms 16, 17 and 18 are uniformly circumferentially mounted on the lower end surface of the trigger ring 4 around the central axis of the trigger ring 4, with the first, second and third support mechanisms 16, 17 and 18 being located outside the ring gear 10; as shown in fig. 2, the first support mechanism 16, the second support mechanism 17 and the third support mechanism 18 are simultaneously engaged with the toothed ring 10; as shown in fig. 1, the ends of the first support means 16, the second support means 17 and the third support means 18, which are not connected to the trigger ring 4, are fixed to the ground surrounding the cement pile, respectively.

As shown in fig. 12, 13 and 15, the internal structures of the first support mechanism 16, the second support mechanism 17 and the third support mechanism 18 are completely the same; as for the first supporting mechanism 16, it includes a fixed seat 19, a transmission groove 20, a first pin hole 21, a second pin hole 22, an expansion link 23, a transmission notch 25, a first rod groove 26, a ring groove 27, a third gear 28, a second transmission shaft 29, a universal joint assembly 30, a transmission rod 34, a rotation ring 35, a top block 36, a second rod groove 37, a rotation groove 38, a rotation round block 39, a first limit block 40, a second limit block 41, an expansion sleeve 42, a limit sliding cavity 43, an expansion groove 44, a second pin hole 45, a U-shaped support 46, a positioning plate 47, a positioning tooth 48, and a second return spring 24, wherein as shown in fig. 16, the transmission groove 20 is opened on one side end face of the fixed seat 19, and the transmission groove 20 is communicated with the lower end face of the fixed seat 19; a second shaft hole 22 is formed in the center of the side end face of the fixed seat 19 opposite to the side end face provided with the transmission groove 20, and the second shaft hole 22 is communicated with the transmission groove 20; two side end faces of the fixed seat 19 adjacent to the side end face provided with the transmission groove 20 are respectively provided with a first pin hole 21 with the same central axis; as shown in fig. 3, the fixed seat 19 is fixedly connected to the lower end surface of the trigger ring 4 through the upper end surface thereof, and the side end surface of the fixed seat 19, on which the second axial hole 22 is opened, is close to the outer circular surface of the gear ring 10; as shown in fig. 2, the central axis of the second shaft hole 22 is perpendicular to the outer circumferential surface of the ring gear 10; as shown in fig. 18, one end of the telescopic rod 23 is provided with a transmission notch 25; as shown in fig. 19, a first rod groove 26 is formed in the center of the end surface of the end of the telescopic rod 23 where the transmission notch 25 is not formed, and the first rod groove 26 is communicated with the transmission notch 25; the inner circle surface of the first rod groove 26 is provided with a ring groove 27 along the circumferential direction; as shown in fig. 2, 3 and 13, one end of the telescopic rod 23, which is provided with a transmission notch 25, is mounted in the transmission groove 20 of the fixed seat 19 through a pin, and the telescopic rod 23 swings around the central axis of the first pin hole 21; as shown in fig. 13, the second transmission shaft 29 is mounted on the fixed base 19 through the bearing of the outer circular surface thereof and the inner circular surface of the second shaft hole 22, and one end of the second transmission shaft 29 is located in the transmission groove 20, and the other end is located between the fixed base 19 and the gear ring 10; as shown in fig. 3, a third gear 28 is mounted on the second transmission shaft 29 at an end near the ring gear 10, and the third gear 28 is engaged with the tooth surface of the lower end of the ring gear 10; the universal joint assembly 30 is positioned in the transmission notch 25 on the telescopic rod 23, and the universal joint assembly 30 is arranged on the second transmission shaft 29; as shown in fig. 13 and 14, one end of the transmission rod 34 is inserted into the first rod groove 26 from bottom to top and enters the transmission notch 25 to be connected with the universal joint assembly 30; the rotating ring 35 is positioned in the annular groove 27, and the rotating ring 35 is nested on and fixedly connected with the transmission rod 34.

As shown in fig. 20, one end of the telescopic sleeve 42 is provided with a second pin hole 45; a cylindrical telescopic groove 44 is formed in the center of the end face of one end, which is not provided with the pin hole, of the telescopic sleeve 42; as shown in fig. 21, a cylindrical limiting slide cavity 43 is formed in the center of the bottom surface of the telescopic slot 44; as shown in fig. 15, the telescopic sleeve 42 is nested on the telescopic rod 23 through the sliding fit of the telescopic slot 44 and the side wall of the telescopic rod 23; as shown in fig. 23, the top block 36 is cylindrical, and a second rod groove 37 is formed in the center of one end surface of the top block 36; as shown in fig. 24, the bottom surface of the second rod groove 37 is provided with a rotation groove 38; as shown in fig. 14, the top block 36 is located in the limiting slide chamber 43; the rotary round block 39 is embedded in the rotary groove 38; one end of the transmission rod 34 positioned in the limiting sliding cavity 43 passes through the second rod groove 37 and is fixedly connected with the rotating round block 39; as shown in fig. 25, the first stopper 40 is mounted on the transmission rod 34, and the first stopper 40 is located in the stopper sliding cavity 43; one end of the first limiting block 40 is fixedly connected with the outer circular surface of the transmission rod 34; as shown in fig. 14 and 15, the second stoppers 41 are uniformly installed on the inner circumferential surface of the limiting sliding cavity 43 along the length direction of the telescopic sleeve 42, and the second stoppers 41 are matched with the first stopper 40; the second return spring 24 is positioned in the limit slide cavity 43; one end of the second return spring 24 is connected with the end face of the top block 36, and the other end is connected with the inner wall of the limiting sliding cavity 43; as shown in fig. 22, a U-shaped support 46 is mounted on the upper end surface of the positioning plate 47; a plurality of positioning teeth 48 are arranged on the lower end surface of the positioning plate 47; as shown in fig. 15, the U-shaped support 46 is hinged to one end of the telescopic sleeve 42, which is provided with a second pin hole 45, through a pin; the positioning plate 47 is fixed to the ground by a plurality of positioning teeth 48 mounted thereon.

As shown in fig. 17, the gimbal assembly 30 includes a first universal joint cross 31, a telescopic column 32, and a second universal joint cross 33, wherein the first universal joint cross 31 and the second universal joint cross 33 are connected by the telescopic column 32; the end of the first cross universal joint 31 which is not connected with the telescopic column 32 is connected with the second transmission shaft 29; the end of the second cardan joint 33 located at the connection of the telescopic column 32 is connected to the end of the transmission rod 34 located in the transmission cutout 25.

As shown in fig. 25, the end of the first stopper 40, which is not connected to the transmission rod 34, has a convex arc surface, and the arc center of the convex arc surface is located on the central axis of the transmission rod 34.

As shown in fig. 25, a slope 49 is formed on the side of the first stopper 40 that is engaged with the second stopper 41.

As shown in fig. 14, the end of the second stopper 41, which is not connected to the inner wall of the stopper sliding cavity 43 in the telescopic sleeve 42, has a concave arc surface, and the arc center of the concave arc surface is located on the central axis of the transmission rod 34.

As shown in fig. 14, the arc radius of the concave arc surface on the second stopper 41 is between the section radius of the telescopic slot 44 and the arc radius of the convex arc surface on the first stopper 40.

As shown in fig. 14, the arc radius of the convex arc surface on the first limiting block 40 is greater than the concave arc surface on the second limiting block 41, and the arc radius of the convex arc surface on the first limiting block 40 is smaller than the inner circle radius of the limiting sliding cavity 43.

As shown in fig. 3, the first return spring 15 is a compression spring.

As shown in fig. 15, the second return spring 24 is a compression spring.

In the invention, one end of the first limiting block 40, which is not connected with the transmission rod 34, is provided with a convex arc surface, and the arc center of the convex arc surface is positioned on the central axis of the transmission rod 34; one end of the second limiting block 41, which is not connected with the inner wall of the limiting sliding cavity 43 in the telescopic sleeve 42, is provided with a concave arc surface, and the arc center of the concave arc surface is positioned on the central axis of the transmission rod 34; the arc radius of the concave arc surface on the second limiting block 41 is between the section radius of the telescopic groove 44 and the arc radius of the convex arc surface on the first limiting block 40; the arc radius of the convex arc surface on the first limiting block 40 is larger than that of the concave arc surface on the second limiting block 41, and the arc radius of the convex arc surface on the first limiting block 40 is smaller than that of the inner circle of the limiting sliding cavity 43, so that when the cement pile in the middle of the trigger ring 4 inclines, the three transmission racks 14 respectively slide and contract inwards along the corresponding rack sliding grooves 5 under the action of the side surfaces of the cement pile; the transmission rack 14 drives a second gear 11 which is coaxial with the first gear 13 to rotate through a first gear 13 meshed with the transmission rack; the second gear 11 drives the gear ring 10 to rotate in the same direction; the gear ring 10 drives the second transmission shaft 29 to rotate through the third gear 28 meshed with the gear ring; the second transmission shaft 29 drives the first universal joint cross 31 connected with the second transmission shaft to rotate; the first cross universal joint 31 drives the second cross universal joint 33 to rotate through the telescopic column 32; the second cross universal joint 33 drives a first limiting block 40 arranged on the second cross universal joint to swing around the central axis of the transmission rod 34 to a second limiting block 41 arranged on the inner wall of a limiting sliding cavity 43 through the transmission rod 34 connected with the second cross universal joint, and a rotating round block 39 is driven by the transmission rod 34 to rotate in the top block 36; meanwhile, the telescopic sleeve 42 slides a certain distance along the telescopic rod 23; because the arc radius of the concave arc surface on the second limiting block 41 is between the section radius of the telescopic slot 44 and the arc radius of the convex arc surface on the first limiting block 40, the arc radius of the convex arc surface on the first limiting block 40 is greater than the concave arc surface on the second limiting block 41, and the arc radius of the convex arc surface on the first limiting block 40 is less than the inner circle radius of the limiting sliding cavity 43, when the telescopic rod 23 meets the second limiting block 41, the second limiting block 41 does not form an obstruction to the contraction movement of the telescopic sleeve 42; when the first limiting block 40 swings, the inner wall of the limiting chute does not form a barrier to the swing of the first limiting block 40; when the first limiting block 40 is placed between the two second limiting blocks 41, the first limiting block 40 is matched with the second limiting blocks 41 and forms a barrier to the contraction movement of the telescopic sleeve 42 along the telescopic rod 23, the telescopic sleeve 42 stops contracting movement under the limitation of the first limiting block 40 and the second limiting block 41, the first supporting mechanism 16, the second supporting mechanism 17 and the third supporting mechanism 18 do not contract any more, the cement pile does not incline any further, the cement pile continues to be hammered at the same time, and the cement pile does not move downwards under the common supporting action of the first supporting mechanism 16, the second supporting mechanism 17 and the third supporting mechanism 18; and after the cement pile is corrected to the vertical position, continuously hammering the cement pile, and continuously moving the cement pile downwards to a certain depth.

The design purpose of the invention is that the inclined surface 49 is formed on the side of the first limiting block 40, which is matched with the second limiting block 41, when the first limiting block 40 is driven by the transmission rod 34 to swing towards the second limiting block 41 and meet the second limiting block 41, because the inclined surface 49 is formed on the side of the first limiting block 40, which is matched with the second limiting block 41, even if the first limiting block 40 reaches a position between the two second limiting blocks 41, the first limiting block 40 cannot cause a pause phenomenon because the side surface of the first limiting block 40 meets the side surface of the second limiting block 41.

The working process of the invention is as follows: when a cement pile provided with the cement pile stabilizing device is beaten into the ground, if the cement pile is not inclined, the positioning ring 1 of the fixing ring on the cement pile moves downwards along with the cement pile; the positioning ring 1 drives the trigger ring 4 to vertically move downwards; the three driving racks 14 are not triggered, and the first supporting mechanism 16, the second supporting mechanism 17 and the third supporting mechanism 18 contract synchronously along with the downward movement of the cement pile until the cement pile enters a certain depth.

When the cement pile in the middle of the trigger ring 4 is inclined, the driving rack 14 on the inclined surface 49 of the cement pile is contracted inwards along the rack sliding groove 5 under the action of the side surface of the cement pile, and the corresponding first return spring 15 is compressed; the transmission rack 14 drives a second gear 11 which is coaxial with the first gear 13 to rotate through a first gear 13 meshed with the transmission rack; the second gear 11 drives the gear ring 10 to rotate in the same direction; the gear ring 10 drives the second transmission shaft 29 to rotate through the third gear 28 meshed with the gear ring; the second transmission shaft 29 drives the first universal joint cross 31 connected with the second transmission shaft to rotate; the first cross universal joint 31 drives the second cross universal joint 33 to rotate through the telescopic column 32; the second cross universal joint 33 drives the first limiting block 40 arranged on the second cross universal joint to swing around the central axis of the transmission rod 34 to three friction strips arranged at the end part of the telescopic rod 23 through the transmission rod 34 connected with the second cross universal joint, the rotary round block 39 is driven by the transmission rod 34 to rotate in the top block 36, the telescopic sleeve 42 contracts and slides for a certain distance along the telescopic rod 23, and the corresponding second return spring 24 is compressed; when the first limiting block 40 is placed between the two second limiting blocks 41, the first limiting block 40 is matched with the second limiting blocks 41 and forms a barrier to the contraction movement of the telescopic sleeve 42 along the telescopic rod 23, the telescopic sleeve 42 stops contracting movement under the limitation of the first limiting block 40 and the second limiting block 41, the first supporting mechanism 16, the second supporting mechanism 17 and the third supporting mechanism 18 do not contract any more, the cement pile does not incline any further, the cement pile continues to be hammered at the same time, and the cement pile does not move downwards under the common supporting action of the first supporting mechanism 16, the second supporting mechanism 17 and the third supporting mechanism 18; and after the cement pile is corrected to the vertical position, continuously hammering the cement pile, and continuously moving the cement pile downwards to a certain depth.

After the cement pile is corrected to the vertical position under the action of external force, the previously pressed transmission rack 14 returns to the initial position under the action of the corresponding first return spring 15, the transmission rack 14 drives the first limiting block 40 to be separated from the second limiting block 41 and return to the initial position through the first gear 13, the first transmission shaft 12, the second gear 11, the toothed ring 10, the third gear 28, the second transmission shaft 29, the universal joint assembly 30 and the transmission rod 34, and the limiting function between the first limiting block 40 and the second limiting block 41 is released; under the action of the corresponding second return spring 24, the telescopic sleeve 42 with the plurality of second stoppers 41 mounted thereon slides back to the initial position along the telescopic rod 23.

In conclusion, the invention has the beneficial effects that: the cement pile stabilizing device in the invention exists independently of the pile driver and is fixed on the cement pile; during the driving process of the pile driver, the first support mechanism 16, the second support mechanism 17 and the third support mechanism 18 in the cement pile stabilizing device contract along with the downward movement of the cement pile; removing the cement pile stabilizing device after the cement pile is driven into the ground to a certain depth; if the cement pile inclines at a certain angle before reaching a certain depth, the first supporting mechanism 16, the second supporting mechanism 17 and the third supporting mechanism 18 in the cement pile stabilizing device stop contracting at the same time, and further the cement pile is prevented from further inclining; at the moment, even if the pile driver continues to beat the cement pile, the cement pile can not continue to move downwards; and the cement pile can be continuously beaten to reach a certain depth only after the verticality of the cement pile is adjusted.

Claims

1. A piling stabilization protection device for a construction site, characterized in that: the device comprises a positioning ring, an annular notch, a positioning threaded hole, a trigger ring, a rack sliding chute, a gear groove, a first shaft hole, an annular trapezoidal sliding chute, an annular trapezoidal sliding strip, a gear ring, a second gear, a first transmission shaft, a first gear, a transmission rack, a first reset spring, a first supporting mechanism, a second supporting mechanism and a third supporting mechanism, wherein the annular notch is formed in the upper end of the outer circular surface of the positioning ring along the circumferential direction, and is communicated with the upper end surface of the positioning ring; three positioning threaded holes are uniformly formed in the side wall of the annular notch along the circumferential direction; the positioning ring is nested at the upper end of the cement pile and is fixed on the cement pile through a fastening bolt; three rack sliding grooves are uniformly formed in the inner circular surface of the trigger ring along the circumferential direction of the trigger ring, and the rack sliding grooves are overlapped with the radius of the trigger ring; a gear groove is formed in one side wall of each rack sliding groove; a first through shaft hole is formed in the lower end face of the gear groove; the three first shaft holes are uniformly distributed along the circumference of the lower end face of the trigger ring; an annular trapezoidal sliding groove is formed in the lower end face of the trigger ring around the central axis of the trigger ring, and the annular trapezoidal sliding groove is located on the outer side of a circle where the three first shaft holes are located; the inner circle surface and the lower end surface of the gear ring are both tooth surfaces; the upper end surface of the gear ring is provided with an annular trapezoidal sliding strip; the gear ring is arranged on the lower end surface of the trigger ring through the sliding fit of the annular trapezoidal sliding strip and the annular trapezoidal sliding groove; the three first transmission shafts are respectively installed in the first shaft holes in a matching way through bearings of the outer circular surfaces of the three first transmission shafts and the inner circular surfaces of the corresponding first shaft holes, one end of each first transmission shaft is located in the corresponding gear groove, and the other end of each first transmission shaft extends out of the corresponding first shaft hole and is located at the lower end of the trigger ring; the three first gears are respectively arranged on one end of the corresponding first transmission shaft, which is positioned in the gear groove; the three second gears are respectively arranged on the corresponding first transmission shafts and positioned at one end of the lower end of the trigger ring; the three second gears are simultaneously meshed with the inner circle tooth surface of the gear ring; the three transmission racks are respectively inserted into the three rack sliding grooves, and each transmission rack is meshed with the corresponding first gear; the three first return springs are respectively positioned in the three rack sliding grooves; for each first return spring, one end of the first return spring is connected with the end face of the corresponding transmission rack, and the other end of the first return spring is connected with the inner wall of the rack sliding groove; the triggering ring is nested on the cement pile, and the upper end surface of the triggering ring is in contact fit with the lower end surface of the positioning ring; the first supporting mechanism, the second supporting mechanism and the third supporting mechanism are uniformly arranged on the lower end face of the trigger ring in the circumferential direction around the central axis of the trigger ring, and the first supporting mechanism, the second supporting mechanism and the third supporting mechanism are positioned on the outer side of the gear ring; the first supporting mechanism, the second supporting mechanism and the third supporting mechanism are matched with the gear ring at the same time; the ends, which are not connected with the trigger ring, of the first support mechanism, the second support mechanism and the third support mechanism are respectively fixed on the ground around the cement pile;

the internal structures of the first support mechanism, the second support mechanism and the third support mechanism are completely the same; for the first supporting mechanism, the first supporting mechanism comprises a fixed seat, a transmission groove, a first pin hole, a second shaft hole, a telescopic rod, a transmission notch, a first rod groove, a ring groove, a third gear, a second transmission shaft, a universal joint component, a transmission rod, a rotating ring, a top block, a second rod groove, a rotating round block, a first limiting block, an inclined plane, a second limiting block, a telescopic sleeve, a limiting sliding cavity, a telescopic groove, a second pin hole, a U-shaped support, a positioning plate, a positioning tooth and a second reset spring, wherein the transmission groove is formed in one side end face of the fixed seat and is communicated with the lower end face of the fixed seat; a second shaft hole is formed in the center of the side end face of the fixed seat opposite to the side end face provided with the transmission groove, and the second shaft hole is communicated with the transmission groove; two side end faces of the fixed seat adjacent to the side end face provided with the transmission groove are respectively provided with a first pin hole with the same central axis; the fixed seat is fixedly connected with the lower end face of the trigger ring through the upper end face of the fixed seat, and the side end face of the fixed seat, which is provided with the second shaft hole, is close to the outer circular face of the gear ring; the central axis of the second shaft hole is vertical to the excircle surface of the gear ring; one end of the telescopic rod is provided with a transmission notch; a first rod groove is formed in the center of the end face of one end, which is not provided with the transmission notch, of the telescopic rod, and the first rod groove is communicated with the transmission notch; a ring groove is formed in the inner circular surface of the first rod groove along the circumferential direction; one end of the telescopic rod, which is provided with a transmission notch, is arranged in a transmission groove of the fixed seat through a pin, and the telescopic rod swings around the central axis of the first pin hole; the second transmission shaft is arranged on the fixed seat in a matching way through the bearing of the outer circular surface of the second transmission shaft and the inner circular surface of the second shaft hole, one end of the second transmission shaft is positioned in the transmission groove, and the other end of the second transmission shaft is positioned between the fixed seat and the toothed ring; the third gear is arranged at one end of the second transmission shaft close to the gear ring and is meshed with the tooth surface of the lower end of the gear ring; the universal joint component is positioned in the transmission notch on the telescopic rod and is arranged on the second transmission shaft; one end of the transmission rod is inserted into the first rod groove from bottom to top and enters the transmission notch to be connected with the universal joint component; the rotating ring is positioned in the ring groove and is nested on and fixedly connected with the transmission rod; an inclined plane is arranged on one side of the first limiting block, which is matched with the second limiting block;

one end of the telescopic sleeve is provided with a second pin hole; a cylindrical telescopic groove is formed in the center of the end face of one end, which is not provided with the pin hole, of the telescopic sleeve; a cylindrical limiting sliding cavity is formed in the center of the bottom surface of the telescopic groove; the telescopic sleeve is nested on the telescopic rod through the sliding fit of the telescopic groove and the side wall of the telescopic rod; the top block is cylindrical, and a second rod groove is formed in the center of one end face of the top block; the bottom surface of the second rod groove is provided with a rotating groove; the top block is positioned in the limiting sliding cavity; the rotary round block is embedded into the rotary groove; one end of the transmission rod, which is positioned in the limiting sliding cavity, penetrates through the second rod groove and is fixedly connected with the rotating round block; the first limiting block is arranged on the transmission rod and is positioned in the limiting sliding cavity; one end of the first limiting block is fixedly connected with the outer circular surface of the transmission rod; the plurality of second limiting blocks are uniformly arranged on the inner circular surface of the limiting sliding cavity along the length direction of the telescopic sleeve, and the plurality of second limiting blocks are matched with the first limiting blocks; the second return spring is positioned in the limiting sliding cavity; one end of the second return spring is connected with the end face of the top block, and the other end of the second return spring is connected with the inner wall of the limiting sliding cavity; a U-shaped support is arranged on the upper end surface of the positioning plate; a plurality of positioning teeth are arranged on the lower end surface of the positioning plate; the U-shaped support is hinged with one end of the telescopic sleeve, which is provided with a second pin hole, through a pin; the positioning plate is fixed on the ground through a plurality of positioning teeth arranged on the positioning plate;

the universal joint assembly comprises a first cross universal joint, a telescopic column and a second cross universal joint, wherein the first cross universal joint and the second cross universal joint are connected through the telescopic column; one end of the first cross universal joint, which is not connected with the telescopic column, is connected with the second transmission shaft; one end of the second cross universal joint, which is positioned at the connection of the telescopic column, is connected with one end of the transmission rod, which is positioned in the transmission notch;

one end of the first limiting block, which is not connected with the transmission rod, is provided with a convex cambered surface, and the arc center of the convex cambered surface is positioned on the central axis of the transmission rod;

one end of the second limiting block, which is not connected with the inner wall of the limiting sliding cavity in the telescopic sleeve, is provided with a concave arc surface, and the arc center of the concave arc surface is positioned on the central axis of the transmission rod;

the arc radius of the concave arc surface on the second limiting block is between the section circle radius of the telescopic groove and the arc radius of the convex arc surface on the first limiting block;

the arc radius of the convex cambered surface on the first limiting block is larger than the concave cambered surface on the second limiting block, and the arc radius of the convex cambered surface on the first limiting block is smaller than the inner circle radius of the limiting sliding cavity.

2. A piling stability protection apparatus for a construction site as set forth in claim 1, wherein: the first return spring is a compression spring.

3. A piling stability protection apparatus for a construction site as set forth in claim 1, wherein: the second return spring is a compression spring.