CN110258595B

CN110258595B - Anti-slide pile

Info

Publication number: CN110258595B
Application number: CN201910597302.4A
Authority: CN
Inventors: 李树一; 黄志全; 王四巍
Original assignee: North China University of Water Resources and Electric Power; Zhejiang Huadong Engineering Construction Management Co Ltd
Current assignee: North China University of Water Resources and Electric Power; Zhejiang Huadong Engineering Construction Management Co Ltd
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2020-11-24
Anticipated expiration: 2039-07-04
Also published as: CN110258595A; CN112359821B; CN112359822B; CN112359822A; CN112359821A

Abstract

The invention belongs to the technical field of slide-resistant piles, and particularly relates to a slide-resistant pile, which comprises a bearing column, a drilling part, a pile body, a slide rod, an A rack, a fixed ring, a fixed cylinder, a stepped ring, a rotating sleeve, a rotating cylinder and the like, wherein the drilling part can perform drilling work in the downward moving process of the slide rod through the limit matching design of a clamping ring and the stepped ring and the thread matching design of internal threads and external threads, and the drilling part does not perform drilling work in the upward moving process of the slide rod, so that the aim of driving the drilling part to work in a one-way mode is fulfilled. The structure cost is low when the unidirectional driving is carried out, and the unidirectional driving device is suitable for batch production. In addition, the anti-slide pile of the invention generates little vibration in the whole pile pressing process, thereby being very beneficial to the pile pressing of the landslide with hard soil and danger. The invention has compact structure, reasonable spatial arrangement and better use effect.

Description

Anti-slide pile

Technical Field

The invention belongs to the technical field of slide-resistant piles, and particularly relates to a slide-resistant pile.

Background

The anti-slide pile penetrates through a landslide body and goes deep into a pile column of a slide bed, is used for supporting and blocking the sliding force of the landslide body and playing a role in stabilizing a side slope, is suitable for the landslide of a shallow layer and a medium-thick layer, and is a main measure for anti-slide treatment. But care needs to be taken to prevent the sliding of the moving landslide stump so as not to cause the sliding due to vibration.

For small landslides with potential danger or secondary mountain landslides caused by aftershock operation in temporary rescue at disaster relief sites, small anti-slide piles arranged temporarily are needed. At present, when the anti-slide pile is temporarily arranged, a pile is directly pressed into a small landslide by using hydraulic equipment, and the anti-slide pile needs to be arranged under the condition of vibration as small as possible by using the hydraulic equipment. However, when the landslide is hard, the process of pressing the pile into the small landslide by the hydraulic device under the condition of ensuring the vibration as small as possible becomes obviously difficult, so that a novel small anti-slide pile suitable for the small landslide or the temporary arrangement of disaster relief needs to be designed to solve the problems.

The invention designs an anti-slide pile to solve the problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses an anti-slide pile, 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.

An anti-slide pile is characterized in that: the device comprises a bearing column, a spring A, a drilling part, a pile body, a sliding rod, a rotating rod, a rack B, a gear, a rack A, a spring B, a spring C, a fixed ring, a fixed cylinder, a clamping ring, a spring D, a clamping block, a stepped ring, a rotating sleeve, a rotating cylinder and a spring A, wherein the top end of the sliding rod is rotatably arranged at the top groove surface of a circular sliding groove formed in the lower surface of the bearing column; the outer rod surface at the bottom of the sliding rod is provided with a section of external thread, and the outer rod surface at the middle part of the sliding rod is symmetrically provided with two guide key strips; the circular sliding groove is internally and symmetrically provided with two assembling grooves, the mounting structures in the two assembling grooves are completely the same, for the mounting structure in one assembling groove, the A rack vertically slides in the assembling groove, the A spring for resetting the A rack is arranged in the A assembling groove, one end of the B rack horizontally slides in the assembling groove is provided with an arc plate, and the gear axially arranged in the assembling groove is respectively meshed with the A rack and the B rack.

A fixed cylinder with a fixed ring at the top end is inserted into the cylindrical pile body, and a rotating sleeve is rotatably arranged at the lower part of the fixed cylinder; the inner sleeve surface of the rotary sleeve is provided with an internal thread which is in threaded fit with the external thread on the slide rod; a step ring is fixedly arranged in the middle of the fixed cylinder, and a plurality of clamping blocks are uniformly arranged on the upper surface of the step ring in the circumferential direction; the clamping ring with a plurality of clamping grooves uniformly arranged on the circumferential direction of the lower surface slides in the fixed cylinder and is positioned above the stepped ring; the clamping blocks are respectively matched with the clamping grooves one by one; one end of the spring is in contact with the lower surface of the clamping ring, and the other end of the spring is in contact with the upper surface of the middle part of the stepped ring; two key grooves are symmetrically formed in the inner ring surface of the clamping ring; one end of a telescopic cylinder with a C spring inside is fixedly connected with the upper surface of the clamping ring, and the other end of the telescopic cylinder is matched with the two arc plates; the slide bar is positioned in the stepped ring, the clamping ring and the telescopic cylinder; the two guide key strips slide in the two key grooves respectively; one end of the spring B is connected with the lower surface of the bearing column, and the other end of the spring B is connected with the upper surface of the fixed ring.

The lower surface of the rotating sleeve is fixedly provided with a rotating cylinder; one end of the rotating rod is fixedly connected with the bottom of the outer cylinder of the rotary drum, and the other end of the rotating rod is provided with a drill part.

The drilling part comprises a spiral sheet, a conical semi-ring with a guide block in the middle of the inner circular surface and a conical drill with a cylindrical end, wherein the rotating rod is fixedly connected with the end surface of the cylindrical end of the conical drill, and two guide grooves are symmetrically formed in the outer cylindrical surface of the cylindrical end of the conical drill; two ends of the two conical semi-rings are hinged with each other, and guide blocks of the two conical semi-rings are matched with the two guide grooves respectively; when the two guide blocks are respectively positioned in the two guide grooves, and the upper surfaces of the two conical semi-rings are coplanar with the end surface of the cylindrical end of the conical drill, the two conical semi-rings and the conical drill form a complete conical drill bit; the outer conical surface of the conical drill bit is distributed with spiral sheets; a rope groove is formed in the outer conical surface of the conical drill bit at the hinge point close to one end of the conical semi-ring, one end of the pull rope is connected with one end, close to the tip of the conical drill bit, of the rope groove, and the other end of the pull rope is connected with the corresponding hinge point at one end of the conical semi-ring; the cone-shaped semi-ring is matched with the cylindrical pile body.

One end of the rack A, which penetrates out of the lower surface of the pressure bearing column, is matched with the upper surface of the fixed ring.

As a further improvement of the technology, the pressure-bearing column is provided with a circular groove which is positioned right above the circular sliding groove; the top end of the sliding rod is provided with a turntable, the top end of the sliding rod penetrates through the top groove surface of the smooth groove of the bearing column, and the turntable is rotatably arranged in the circular groove. The design is that the sliding rod can synchronously and axially move with the bearing column while the sliding rod rotates relative to the bearing column.

As a further improvement of the technology, for any one of the assembly grooves, a guide rail A is fixedly arranged on the groove surface at the top of the assembly groove, and a guide rail B is fixedly arranged on the groove surface at the side of the assembly groove; the rack A vertically slides in the guide rail A, one end of the spring A is connected with the inner wall of the guide rail A, and the other end of the spring A is connected with one end of the rack A in the guide rail A; one end of the rack B far away from the corresponding arc plate horizontally slides in the guide rail B. In order to prevent the a rack from being separated from the a guide rail and the B rack from being separated from the B guide rail, a prior art anti-drop structure may be adopted. For the guide rail B, under the condition that the pressing force of the telescopic cylinder on the rack B is considered, in order to ensure that the guide rail B can bear the acting force from the rack B, the guide rail B is as thick as possible under the condition of ensuring enough strength; or reinforcing blocks can be arranged on the upper surface and the lower surface of the B guide rail to increase the good support of the B guide rail on the B rack.

As a further improvement of the present technology, the ring surface of the stationary ring contacting the top end surface of the cylindrical pile body is a friction surface, and the design is to ensure that the stationary ring and the cylindrical pile body do not rotate relatively; the guide blocks of the two conical semi-rings are respectively in friction fit with the two guide grooves, and the friction between the guide blocks and the guide grooves can temporarily fix the two conical semi-rings on the conical drill so as to form a complete conical drill bit. The inner arc surface of the arc plate is processed into a smooth surface, and the design is to ensure that the friction force between the arc plate and the inner cylinder is small when the arc plate is contacted with the inner cylinder of the telescopic cylinder, so that the operation requirement of the telescopic cylinder is met.

As a further improvement of the technology, the inner cylinder surface at the lower part of the fixed cylinder is provided with a ring groove; the outer surface of the rotating sleeve is fixedly provided with a rotating ring which is rotatably arranged in the ring groove. Grease may be added to the ring grooves to ensure smooth rotation of the swivel.

As a further improvement of the present technology, the diameter of the circle of the axial projection of the complete cone drill is equal to the outer diameter of the cylindrical pile body. When looking down along the axial direction of the cylindrical pile body, the diameter of a hole which can be drilled by the complete conical drill bit is equivalent to the outer diameter of the pile body, and the lower end of the pile body is not extruded with the facing soil as far as possible when the pile body is deep into the landslide soil.

As a further improvement of the technology, both sides of the guide block are provided with rubber gaskets. The rubber gasket can enhance the friction between the guide block and the guide groove.

As a further improvement of the present technology, the rack a is located in the spring B; the part of the rotating rod, which is close to the drilling part, is provided with a guide disc through a bearing, and the guide disc is positioned in the cylindrical pile body. The guide disc has the effect that when the cylindrical pile body is pressed into a landslide, in order to ensure that the drill part can drill downwards vertically, the vertical guide of the guide disc in the cylindrical pile body can effectively avoid the deflection of the rotating rod in the cylindrical pile body.

As a further improvement of the technology, one end of the C spring is connected with the bottom of the outer cylinder of the telescopic cylinder, and the other end of the C spring is connected with one end of the inner cylinder, which is positioned at the outer cylinder; the elastic coefficient of the C spring is larger than that of the D spring.

As a further improvement of the technology, when the slide rod axially slides in the rotary sleeve and the slide rod is in a non-rotating state, the rotary sleeve rotates relative to the slide rod under the threaded matching of the external thread of the slide rod and the internal thread of the rotary sleeve. The helix angle for the internal and external threads is large so that axial movement of the slide rod drives rotation of the sleeve when the threads are engaged. The thread fit between the internal thread and the external thread is different from the normal thread fit, and the design requirement can be met by designing a reasonable helix angle.

The length of the cylindrical pile body is matched with the length proportion of the rotating rod, and the rotating rod with the matched length can be replaced to realize the aim of the cylindrical pile bodies with different lengths.

In the invention, when the two guide blocks are respectively positioned in the two guide grooves, and the upper surfaces of the two conical semi-rings are coplanar with the end surface of the cylindrical end of the conical drill, the two conical semi-rings and the conical drill form a complete conical drill bit; the outer conical surface of the conical drill bit is distributed with spiral sheets; a rope groove is formed in the outer conical surface of the conical drill bit at the hinge point close to one end of the conical semi-ring, one end of the pull rope is connected with one end, close to the tip of the conical drill bit, of the rope groove, and the other end of the pull rope is connected with the corresponding hinge point at one end of the conical semi-ring; the arranged rope groove is convenient for the pulling rope to completely go out of the rope groove, so that the spiral sheet is locally provided with a notch when the rope groove is arranged; one part of the spiral sheet distributed on the outer conical surface of the cone drill bit is from the spiral sheet on the cone drill, the other part of the spiral sheet is from the spiral sheets of the two cone semi-rings, and when the cone drill bit is in a complete cone drill bit state, the spiral sheets of the two parts form a complete spiral sheet. The spiral sheet and the spiral angle in the invention can meet the requirements of the prior technical specification.

Compared with the traditional slide-resistant pile technology, the invention has the beneficial effects that:

1. when the pile body is pressed and inserted into a landslide, the diameter of a circle of an axial projection of the complete conical drill bit is equal to the outer diameter of the cylindrical pile body, when the pile body penetrates into landslide soil, the lower end of the pile body is not extruded with the facing soil as far as possible, the resistance is as small as possible when the pile body is pressed, and therefore the possibility of landslide is greatly avoided.

2. The slide-resistant pile can be used for quickly pressing the pile to temporarily stabilize a landslide, and the formed matched cylindrical pile body is low in cost and very convenient to temporarily use.

3. When the small landslide is fixed for a long time, the anti-slide pile can be used for performing pile pressing treatment at multiple positions on the small landslide, reinforcing steel bars are installed in the pile body cylinder and cement is injected into the pile body cylinder, the end parts of all cylindrical pile bodies exposed out of the landslide are bound with the reinforcing steel bars for connection treatment, and the bound reinforcing steel bar frame is subjected to cement pouring, so that all cylindrical pile bodies are fixedly connected into a whole, and the strength and the anti-slide performance of the anti-slide pile are greatly improved.

4. According to the invention, through the limit matching design of the snap ring and the stepped ring and the combination of the thread matching design of the internal thread and the external thread, the drilling part can perform drilling work in the downward moving process of the slide rod, and the drilling part does not perform drilling work in the upward moving process of the slide rod, so that the purpose of one-way driving of the drilling part is realized. If the traditional one-way clutch is directly adopted to realize one-way driving, parts for realizing the one-way driving in the one-way clutch are more and smaller, the strength of the smaller parts is generally not suitable for high pressure load borne by an anti-slide pile when the pile is pressed in hard soil, and the smaller parts are easy to damage, so that the one-way clutch cannot be normally used. If the use of the inventive friction piles is to be met, one-way clutches made of high strength materials are necessary and the cost of one-way clutches of this kind is high. Compared with the core structure of the invention when realizing unidirectional driving: the ladder ring and the clamping ring are fixedly connected by matching of the clamping block and the clamping groove, and the design can bear higher load; if the clamping block is damaged under the condition of bearing higher load, the overall maintenance or replacement cost of the stepped ring and the clamping block is low, and the stepped ring and the clamping block are easy to replace; therefore, the structure cost is lower during the unidirectional driving of the invention by combining the factors, and the invention is more suitable for batch production.

5. The anti-slide pile of the invention generates little vibration in the whole pile pressing process, and is very beneficial to the pile pressing of the small landslide with hard soil. The main reason that the vibration generated by the slide-resistant pile in the whole pile pressing process is small is that the work of the drilling part during drilling is not continuous but intermittent, so that the vibration generated in the pile pressing process cannot be amplified by vibration superposition due to long-time continuity; in addition, the telescopic hydraulic column of the hydraulic equipment is always attached to the bearing column to slowly apply pressure, rather than adopting the direct hammering type pile driving used by the traditional slide-resistant pile, thereby greatly reducing the vibration during pile pressing.

Drawings

Figure 1 is an overall and cross-sectional elevation view of the present invention.

Fig. 2 is two partially enlarged (one) schematic views of the overall cross-sectional elevation of the invention.

Fig. 3 is two partially enlarged (two) schematic views of the overall cross-sectional elevation of the invention.

Fig. 4 is a partially enlarged view of the overall sectional elevation of the present invention and the installation of the pull cord in section.

Fig. 5 is a sectional view of the installed structure inside the pressure-bearing column and a partial structural sectional view.

Fig. 6 is an enlarged (one) partial cross-sectional view of the entire structure cooperating with the slide bar and the entire cross-sectional view of the structure cooperating with the slide bar.

Fig. 7 is a schematic enlarged view of three parts of the whole section of the structure matched with the sliding rod.

Fig. 8 is a sectional view schematically showing the structure of the telescopic cylinder and the snap ring, and a structural view of the stepped ring.

Fig. 9 is a sectional view showing the installation of the stator.

Figure 10 is a schematic view of the installation of the drill part.

Fig. 11 is a schematic view of the structure of the drill portion and the disassembled structure.

Fig. 12 is a schematic view of the structure of the internal thread and the external thread.

Number designation in the figures: 1. a pressure-bearing column; 3. a drill portion; 4. a pile body; 5. a slide bar; 6. a rotating rod; 7. a circular chute; 8. assembling a groove; 9. a, a guide rail; 10. b, a guide rail; 12. b, a rack; 13. an arc plate; 14. a gear; 15. a, a rack; 16. an inner barrel; 17. a spring B; 18. a turntable; 19. a key guide bar; 20. a C spring; 21. an outer cylinder; 22. fixing a ring; 23. fixing the cylinder; 24. a snap ring; 25. a spring D; 26. a clamping block; 27. a stepped ring; 28. an external thread; 29. an internal thread; 30. rotating the sleeve; 31. rotating the ring; 32. a telescopic cylinder; 33. a rotating drum; 34. a guide plate; 35. a spiral sheet; 36. a tapered half ring; 37. drilling a cone; 38. pulling a rope; 39. a keyway; 40. a circular groove; 41. a, a spring; 42. a card slot; 43. a ring groove; 44. a guide block; 45. rope grooves; 46. and a guide groove.

Detailed Description

The invention will be described with reference to the accompanying drawings, which are only schematic in terms of their structural proportions and which may be specified according to actual requirements; it should be understood that the description is illustrative only and is not intended to limit the scope of the present disclosure. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure. All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. It is noted that the terms used herein should be interpreted as having a meaning that is consistent with the context of this specification and should not be interpreted in an idealized or overly formal sense.

An anti-slide pile comprises a bearing column 1, a spring 41A, a drilling part 3, a pile body 4, a slide rod 5, a rotating rod 6, a rack 12B, a gear 14, a rack 15A, a spring 17B, a spring 20C, a fixed ring 22, a fixed cylinder 23, a clamping ring 24, a spring 25D, a clamping block 26, a stepped ring 27, a rotating sleeve 30, a rotating cylinder 33 and a spring 41A, wherein the top end of the slide rod 5 is rotatably arranged at the top groove surface of a circular sliding groove 7 formed in the lower surface of the bearing column 1 as shown in figures 1 and 2; as shown in fig. 6 and 7, the outer rod surface at the bottom of the sliding rod 5 is provided with a section of external thread 28, and the outer rod surface at the middle part of the sliding rod 5 is symmetrically provided with two key guiding strips 19; as shown in fig. 5, the round slot 7 has two fitting slots 8 symmetrically opened on the inner surface thereof and the structures installed in the two fitting slots 8 are identical, and for the structure installed in one of the fitting slots 8, the a rack 15 vertically slides in the fitting slot 8 and the a spring 41 for returning the a rack 15 is installed in the a fitting slot 8, and the B rack 12 horizontally slides in the fitting slot 8 and has an arc plate 13 at one end thereof, and is engaged with the a rack 15 and the B rack 12 through the gear 14 axially installed in the fitting slot 8.

As shown in fig. 2 and 9, a fixed tube 23 having a fixed ring 22 at the tip is inserted into the tubular pile body 4, and a rotating sleeve 30 is rotatably mounted on the lower portion of the fixed tube 23; as shown in fig. 12, the inner surface of the rotary sleeve 30 is provided with an internal thread 29 which is in threaded fit with the external thread 28 on the slide rod 5; as shown in fig. 8 and 9, a stepped ring 27 is fixedly installed in the middle of the fixed cylinder 23, and as shown in fig. 8, a plurality of fixture blocks 26 are uniformly arranged on the upper surface of the stepped ring 27 in the circumferential direction; a snap ring 24 with a plurality of snap grooves 42 uniformly arranged on the circumferential direction of the lower surface is arranged in the fixed cylinder 23 in a sliding manner and is positioned above the stepped ring 27; the clamping blocks 26 are respectively matched with the clamping grooves 42 one by one; as shown in fig. 2 and 8, one end of the D spring 25 is in contact with the lower surface of the snap ring 24, and the other end is in contact with the upper surface of the stepped ring 27 in the middle; two key grooves 39 are symmetrically formed in the inner annular surface of the snap ring 24; as shown in fig. 2, 6 and 7, one end of a telescopic cylinder 32 with a C spring 20 inside is fixedly connected with the upper surface of the snap ring 24, and the other end is matched with the two arc plates 13; the slide bar 5 is positioned in the stepped ring 27, the snap ring 24 and the telescopic cylinder 32; the two key guide strips 19 slide in the two key grooves 39 respectively; as shown in fig. 1 and 2, one end of the B spring 17 is connected to the lower surface of the pressure-bearing column 1, and the other end is connected to the upper surface of the stationary ring 22.

As shown in fig. 6 and 7, a rotary drum 33 is fixedly arranged on the lower surface of the rotary sleeve 30; as shown in figures 1 and 4, one end of the rotating rod 6 is fixedly connected with the bottom of the outer cylinder 21 of the rotating cylinder 33, and the other end is provided with the drill part 3.

As shown in fig. 10 and 11, the drilling portion 3 includes a spiral plate 35, a conical half ring 36 having a guide block 44 at the middle of the inner circular surface, and a conical drill 37 having a cylindrical end, wherein the rotating rod 6 is fixedly connected with the end surface of the cylindrical end of the conical drill 37, and the outer cylindrical surface of the cylindrical end of the conical drill 37 is symmetrically provided with two guide slots 46; the two ends of the two conical half rings 36 are hinged with each other, and the guide blocks 44 of the two conical half rings 36 are respectively matched with the two guide grooves 46; when the two guide blocks 44 are respectively positioned in the two guide grooves 46, and the upper surfaces of the two cone-shaped half rings 36 are coplanar with the cylindrical end surface of the cone drill 37, the two cone-shaped half rings 36 and the cone drill 37 form a complete cone drill bit; the outer conical surface of the conical drill bit is distributed with a spiral sheet 35; a rope groove 45 is formed in the outer conical surface of the conical drill bit at the hinge point close to one end of the conical semi-ring 36, as shown in fig. 4, one end of the pull rope 38 is connected with one end, close to the tip of the conical drill bit, of the rope groove 45, and the other end of the pull rope is connected with the corresponding hinge point at one end of the conical semi-ring 36; the cone-shaped half ring 36 is matched with the cylindrical pile body 4.

As shown in fig. 2, one end of the a-rack 15, which penetrates through the lower surface of the pressure bearing column 1, is engaged with the upper surface of the stationary ring 22.

As shown in fig. 5 and 6, the pressure-bearing column 1 has a circular groove 40 therein, and the circular groove 40 is located right above the circular sliding groove 7; the top end of the sliding rod 5 is provided with a rotary disc 18, the top end of the sliding rod 5 passes through the top groove surface of the smooth groove 7 of the bearing column 1, and the rotary disc 18 is rotatably arranged in the circular groove 40. This is designed in such a way that it is ensured that the slide bar 5 is able to move axially in synchronism with the pressure bearing column 1 while the slide bar 5 is rotating relative to the pressure bearing column 1.

As shown in fig. 5, for any one of the assembly grooves 8, an a guide rail 9 is fixedly mounted on the top groove surface of the assembly groove 8, and a B guide rail 10 is fixedly mounted on the side groove surface of the assembly groove 8; the rack A15 vertically slides in the guide rail A9, one end of the spring A41 is connected with the inner wall of the guide rail A9, and the other end of the spring A is connected with one end of the rack A15 in the guide rail A9; one end of the B rack 12 far away from the corresponding arc plate 13 horizontally slides in the B guide rail 10. In order to prevent the a rack 15 from being separated from the a rail 9 and the B rack 12 from being separated from the B rail 10, a related art anti-slip structure may be employed. For the B rail 10, in order to ensure that the B rail 10 can withstand the force from the B rack 12 in consideration of the pressing of the B rack 12 from the telescopic cylinder 32, the B rail 10 is as thick as possible while ensuring sufficient strength; or reinforcing blocks may be installed on the upper and lower surfaces of the B rail 10 to increase the good support of the B rail 10 to the B rack 12.

The ring surface of the fixed ring 22 contacting the top end surface of the cylindrical pile 4 is a friction surface, and the design is to ensure that the fixed ring 22 and the cylindrical pile 4 do not rotate relatively; the guide blocks 44 of the two cone-shaped half rings 36 are respectively engaged with the two guide grooves 46 by friction, and the friction between the guide blocks 44 and the guide grooves 46 can temporarily fix the two cone-shaped half rings 36 on the awl drill 37, so as to form a complete cone-shaped drill. The inner arc surface of the arc plate 13 is processed into a smooth surface, and the design is to ensure that the friction force between the arc plate 13 and the inner cylinder 16 is small when the arc plate 13 is contacted with the inner cylinder 16 of the telescopic cylinder 32, so that the operation requirement of the invention is met.

As shown in fig. 3 and 9, the surface of the inner cylinder 16 at the lower part of the fixed cylinder 23 is provided with a ring groove 43; the outer surface of the rotating sleeve 30 is fixedly provided with a rotating ring 31, and the rotating ring 31 is rotatably arranged in the annular groove 43. Grease may be added to the ring groove 43 to ensure smooth rotation of the swivel 31.

The diameter of the circle of the axial projection of the complete cone drill bit is equal to the outer diameter of the cylindrical pile body 4. When looking down along the axial direction of the cylindrical pile body 4, the diameter of a hole which can be drilled by the complete cone-shaped drill bit is equivalent to the outer diameter of the pile body 4, so that when the pile body 4 is deeply inserted into landslide soil, the lower end of the pile body 4 is not extruded with the facing soil as far as possible.

The guide block 44 has rubber gaskets on both sides. Rubber shims may enhance friction between the guide block 44 and the guide slot 46.

As shown in fig. 2, the a rack 15 is located in the B spring 17; as shown in fig. 4 and 10, the rotating rod 6 is provided with a guide disc 34 near the drill part 3 through a bearing, and the guide disc 34 is positioned in the cylindrical pile body 4. The guide plate 34 is used to ensure that the drill 3 can drill vertically downward when the cylindrical pile 4 is pressed into a landslide, and the vertical guide of the guide plate 34 in the cylindrical pile 4 can effectively avoid the deflection of the rotating rod 6 in the cylindrical pile 4.

As shown in fig. 8, one end of the C spring 20 is connected to the bottom of the outer cylinder 21 of the telescopic cylinder 32, and the other end is connected to one end of the inner cylinder 16 located at the outer cylinder 21; the elastic coefficient of the C spring 20 is larger than that of the D spring 25.

When the slide rod 5 slides axially in the rotary sleeve 30 and the slide rod 5 is in a non-rotating state, the rotary sleeve 30 rotates relative to the slide rod 5 under the threaded cooperation of the external thread 28 of the slide rod 5 and the internal thread 29 of the rotary sleeve 30. As shown in fig. 12, the lead angle for the internal thread 29 and the external thread 28 is large so that the axial movement of the slide 5 drives the rotation of the sleeve 30 when the threads are engaged. The thread fit between the internal thread 29 and the external thread 28 in the invention is different from the normal thread fit, and the invention can meet the design requirement through designing a reasonable helix angle.

The length of the cylindrical pile body 4 is matched with the length proportion of the rotating rod 6, and the rotating rod 6 with the matched length can be replaced when the cylindrical pile bodies 4 with different lengths are used.

In the present invention, when the two guide blocks 44 are respectively located in the two guide grooves 46, and the upper surfaces of the two cone-shaped half rings 36 are coplanar with the cylindrical end surface of the awl drill 37, the two cone-shaped half rings 36 and the awl drill 37 form a complete cone drill; the outer conical surface of the conical drill bit is distributed with a spiral sheet 35; a rope groove 45 is formed in the outer conical surface of the conical drill bit at the hinge point close to one end of the conical semi-ring 36, one end of the pull rope 38 is connected with one end, close to the tip of the conical drill bit, of the rope groove 45, and the other end of the pull rope is connected with the corresponding hinge point at one end of the conical semi-ring 36; the arranged rope groove 45 and the pulling rope 38 can completely go out of the rope groove 45, so that the spiral sheet 35 is partially provided with a gap when the rope groove 45 is arranged; the helical blades 35 distributed on the outer conical surface of the cone drill bit are partially from the helical blades 35 on the cone drill 37, and are partially from the helical blades 35 of the two cone half rings 36, and when the cone drill bit is in a complete cone drill bit state, the helical blades 35 of the two parts form a complete helical blade 35. The spiral sheet 35 and the spiral angle in the invention can be obtained by the prior technical specification.

The pressure-bearing column 1 is powered by hydraulic equipment, specifically, a telescopic hydraulic column of the hydraulic equipment is connected with the upper surface of the pressure-bearing column 1 to apply pressure in a fitting manner, and the telescopic hydraulic column controls the movement of the pressure-bearing column 1.

In the invention, lubricating grease is coated on the key slot 39, so that the sliding rod 5 cannot drive the snap ring 24 and the telescopic cylinder 32 to move upwards through the key guide strip 19 in the process that the sliding rod 5 moves upwards relative to the snap ring 24.

The embodiment of the invention comprises the following steps: when the cylindrical pile body 4 is to be pressed into a landslide, the two guide blocks 44 are respectively positioned in the two guide grooves 46, the two guide blocks 44 are in friction fit with the two guide grooves 46, the upper surfaces of the two conical half rings 36 are coplanar with the cylindrical end surface of the conical drill 37, the two conical half rings 36 and the conical drill 37 form a complete conical drill bit, the thread pieces are complete spiral pieces 35, and the pull rope 38 is positioned in the rope groove 45 and is in a straightening state; the complete conical drill bit is positioned below the cylindrical pile body 4, and the upper surfaces of the two conical semi-rings 36 are attached to the lower end surface of the cylindrical pile body 4. As shown in fig. 2, the fixed cylinder 23 is positioned in the cylindrical pile 4, the fixed cylinder 23 is in friction fit with the inner cylinder 16 surface of the cylindrical pile 4, and the fixed ring 22 is in friction contact with the top end surface of the cylindrical pile 4; the upper end of the telescopic cylinder 32 is contacted with the lower surfaces of the two arc plates 13.

The process of pressing the cylindrical pile body 4 into the landslide: vertically placing a cylindrical pile body 4 at a landslide position needing pile pressing, and inserting a drilling part 3 into surface soil of the landslide; and starting the hydraulic equipment, wherein the telescopic hydraulic column of the hydraulic equipment moves downwards to apply pressure to the upper surface of the pressure-bearing column 1, and the pressure-bearing column 1 vertically moves downwards. Because of the dead weight of the invention and the external pressing, the lower end of the pile body 4 is pressed and contacted with the soil on the surface of the landslide, and the pile body 4 is difficult to rotate; the sliding rod 5 moves downwards along with the bearing column 1, and the fixed cylinder 23 cannot rotate due to the fact that the fixed ring 22, the fixed cylinder 23 and the cylindrical pile body 4 are in friction fit; since the drill portion 3 is located in the soil and there is a large friction between the drill portion 3 and the soil, when the latch 26 does not enter the latch groove 42, the drill portion 3 cannot rotate but the slide rod 5 rotates. Since the drill part 3 cannot rotate due to the existence of large friction force between the drill part 3 and soil, the rotary rod 6, the rotary drum 33 and the rotary sleeve 30 cannot rotate due to the drill part 3, and then at the initial stage of downward movement of the slide rod 5, the slide rod 5 rotates under the matching of the internal thread 29 of the slide rod 5 and the external thread 28 of the rotary sleeve 30, and the slide rod 5 drives the snap ring 24 to rotate through the key guiding strip 19. At the initial stage of the sliding rod 5 moving downwards along with the bearing column 1, the arc plate 13 on the rack B12 in the bearing column 1 also moves downwards synchronously, and because the elastic coefficient of the C spring 20 is greater than that of the D spring 25, the D spring 25 is compressed firstly, namely, the arc plate 13 presses the upper end of the telescopic cylinder 32 downwards, the telescopic cylinder 32 drives the snap ring 24 to move downwards, and the D spring 25 is compressed. When the snap ring 24 moves downwards to the positions of the fixture blocks 26 of the stepped ring 27, if the fixture blocks 26 are exactly aligned with the clamping grooves 42, the fixture blocks 26 are quickly inserted into the corresponding clamping grooves 42, and the stepped ring 27 limits the rotation of the snap ring 24; if the plurality of clamping blocks 26 are misaligned with the plurality of clamping grooves 42, under the rotation of the snap ring 24, once the plurality of clamping blocks 26 are aligned with the plurality of clamping grooves 42, the snap ring 24 which rotates and moves downwards enables the clamping blocks 26 to be rapidly inserted into the corresponding clamping grooves 42, and at the moment, the stepped ring 27 limits the rotation of the snap ring 24.

After the stepped ring 27 limits the rotation of the snap ring 24, the snap ring 24 limits the rotation of the slide rod 5 under the action of the guide key strip 19; when the pressure bearing column 1 drives the sliding rod 5 to move downwards continuously, because the sliding rod 5 does not rotate any more, under the threaded fit of the internal thread 29 and the external thread 28, the rotating force generated by the rotating sleeve 30 is enough to break through the friction force from the drilling part 3, then the rotating sleeve 30 drives the complete conical drill bit to rotate through the rotating cylinder 33 and the rotating rod 6 to drill holes, and the complete spiral sheet 35 rotates along with the complete conical drill bit to drill holes more quickly; during the complete conical bit is rotatory to be drilled, the complete conical bit can receive the extrusion of soil property in the direction of boring, and the extrusion force provides ascending extrusion force to two conical half rings 36 to guarantee that two conical half rings 36 are terminal surface laminating under with the pile body 4 of tube-shape all the time, thereby guaranteed the integrality of the drilling in-process of complete conical bit. The guide key strip 19 is not detached from the snap ring 24 at all times during the drilling. After the stepped ring 27 restricts the rotation of the snap ring 24, the compression amount of the D spring 25 reaches the maximum; as the pressure bearing column 1 and the slide rod 5 continue to move down, the arc plate 13 presses the telescopic cylinder 32 to shorten the telescopic cylinder 32, and the C spring 20 is compressed.

During the downward movement of the pressure-bearing column 1, the B spring 17 is compressed.

When the pressure bearing column 1 moves downwards to a certain degree, the lower ends of the two A racks 15 are in extrusion contact with the fixed ring 22, the two A racks 15 move upwards, and the A spring 41 is compressed; the rack A15 drives the corresponding rack B12 to move in the direction far away from the sliding rod 5 through the gear 14, and the arc plate 13 moves along with the rack B12; when the arc plate 13 moves along with the B rack 12, the arc plate 13 does not extrude the upper end surface of the telescopic cylinder 32 any more, the telescopic cylinder 32 is immediately restored to the original state under the reset action of the C spring 20, and the upper end of the telescopic cylinder 32 rapidly moves upwards in the smooth groove 7; when the telescopic cylinder 32 is immediately restored to the original state, the C spring 20 is restored to the initial state, so that the snap ring 24 is no longer subjected to the strong downward pressure of the telescopic cylinder 32, under the restoring action of the D spring 25, the snap ring 24 moves up to the position where the snap ring 24 is initially separated from the stepped ring 27, the latch 26 is separated from the latch groove 42, and the stepped ring 27 no longer limits the rotation of the snap ring 24. When the telescopic cylinder 32 returns to the original state and the movement in the smooth groove 7 is stopped, the telescopic hydraulic column of the hydraulic equipment is controlled to move upwards, and the pressure-bearing column 1 is always in contact fit with the telescopic hydraulic column of the hydraulic equipment under the reset action of the B spring 17; the pressure-bearing column 1 is synchronized with the upward movement of the telescopic hydraulic column of the hydraulic apparatus.

In the upward movement process of the pressure bearing column 1, the lower ends of the two racks a 15 are separated from the pressing contact with the fixed ring 22, under the reset of the spring a 41, the rack a 15 drives the arc plate 13 to move towards the sliding rod 5 through the gear 14 and the rack B12, when the arc plate 13 is in contact with the inner cylinder 16 of the telescopic cylinder 32 in the original state, the rack B12, the gear 14 and the rack a 15 do not move any more, and at the moment, the spring a 41 is still in the compressed state. During the process that the slide bar 5 moves upwards along with the pressure bearing column 1, the drill part 3 cannot rotate but the slide bar 5 rotates because the drill part 3 is positioned in the soil and a large friction force exists between the drill part 3 and the soil. Because the drill part 3 cannot rotate due to the existence of large friction force between the drill part 3 and soil, the rotary rod 6, the rotary drum 33 and the rotary sleeve 30 cannot rotate due to the drill part 3, so that in the process that the stepped ring 27 does not limit the rotation of the clamping ring 24 any more and the slide rod 5 moves upwards, the slide rod 5 rotates under the matching of the internal thread 29 of the slide rod 5 and the external thread 28 of the rotary sleeve 30, the slide rod 5 drives the clamping ring 24 to rotate through the key guide strip 19, the clamping ring 24 drives the telescopic cylinder 32 to rotate, and the inner cylinder 16 rotates relative to the arc plate 13. In the process that the pressure-bearing column 1 drives the sliding rod 5 to move upwards, the sliding rod 5 cannot drive the snap ring 24 and the telescopic cylinder 32 to move upwards through the key guide strip 19; when the pressure bearing column 1 moves upwards to a certain degree, the spring B17 returns to the initial state, the upper end face of the telescopic cylinder 32 is just positioned below the arc plate 13, and the inner cylinder 16 of the telescopic cylinder 32 does not limit the resetting of the arc plate 13; under the reset action of the spring a 41, the rack a 15 drives the corresponding arc plate 13 to move towards the direction of the slide bar 5 through the corresponding gear 14 and the corresponding rack B12, and then the arc plate is reset to the initial state, and at this time, the lower surface of the arc plate 13 is in contact with the upper end surface of the telescopic cylinder 32.

When the B spring 17 and the pressure-bearing column 1 are restored to the initial state, the telescopic hydraulic column of the hydraulic equipment is controlled to move downwards again to apply pressure to the pressure-bearing column 1 and move downwards; the movement after the pressure receiving column 1 is pushed down is repeated.

In combination with the above description: in the process of reciprocating and stretching of a telescopic hydraulic column of the hydraulic equipment, the pressure-bearing column 1 reciprocates up and down slowly, the drilling part 3 performs the work of drilling a pile hole in the process of downward moving the pressure-bearing column 1, and the cylindrical pile body 4 gradually enters the drilled pile hole under the pressure of the fixed ring 22; the drilling part 3 does not perform the work of drilling a pile hole during the upward movement of the pressure bearing column 1.

During the whole pile-pressing drilling period, when the bearing column 1 moves downwards to drill, the B spring 17 is compressed; during the drilling stop during the upward movement of the pressure-bearing column 1, the B-spring 17 is reset. The B spring 17 has the function of providing certain buffer between the pressure bearing column 1 and the fixed ring 22, so that the vibration during the construction of the invention is reduced, and the construction of the invention is facilitated.

After the tubular pile body 4 is pressed, all other structures of the tubular pile body 4 need to be taken out of the tubular pile body 4, and the taking-out process is as follows: the pressure-bearing column 1 is taken down from the pile body 4 pressed with the pile through a telescopic hydraulic column of hydraulic equipment, in the process of taking the pressure-bearing column 1, the pressure-bearing column 1 can pull a fixed ring 22 and a fixed cylinder 23 through a B spring 17 to be completely taken out from the pile body 4, a structure installed in the fixed cylinder 23 and a structure installed on the pressure-bearing column 1 are all completely taken out together, and in the process of taking the fixed cylinder 23 out, the fixed cylinder 23 pulls a conical drill 37 through a rotary ring 31, a rotary sleeve 30, a rotary drum 33 and a rotary rod 6 to be taken out from bottom to top through the pile body 4; because the lower end of the pile body 4 is in contact with the two conical half rings 36, when the conical drill 37 enters the pile body 4, the two conical half rings 36 cannot move along with the conical drill 37, the guide blocks 44 on the two conical half rings 36 are separated from the guide grooves 46, and the pull rope 38 is exposed from the rope groove 45; after the awl 37 completely enters the pile 4, after the awl 37 pulls one hinge point on the cone half ring 36 through the pulling rope 38, the two cone half rings 36 are folded around the hinge point under the pulling rope 38, and only one hinge point is connected with the pulling rope 38, so that after the two cone half rings 36 are folded, the hinge point connected with the pulling rope 38 in the two folded cone half rings 36 is positioned above the other hinge point, so that the two folded cone half rings 36 in the suspended state can enter the pile 4 and then are pulled out of the pile 4.

After all other structures of the cylindrical pile body 4 are taken out of the cylindrical pile body 4, the structures are sleeved into other cylindrical pile bodies 4 needing pile pressing. Repeating the pile pressing process.

While the present invention has been described in conjunction with the above embodiments, the present invention is not limited to the above embodiments but is limited only by the appended claims, and those skilled in the art can easily make modifications and variations thereto without departing from the true spirit and scope of the present invention.

Claims

1. An anti-slide pile is characterized in that: the device comprises a bearing column, a spring A, a drilling part, a pile body, a sliding rod, a rotating rod, a rack B, a gear, a rack A, a spring B, a spring C, a fixed ring, a fixed cylinder, a clamping ring, a spring D, a clamping block, a stepped ring, a rotating sleeve, a rotating cylinder and a spring A, wherein the top end of the sliding rod is rotatably arranged at the top groove surface of a circular sliding groove formed in the lower surface of the bearing column; the outer rod surface at the bottom of the sliding rod is provided with a section of external thread, and the outer rod surface at the middle part of the sliding rod is symmetrically provided with two guide key strips; two assembling grooves are symmetrically formed in the inner groove surface of the circular sliding groove, mounting structures in the two assembling grooves are completely the same, for the mounting structure in one assembling groove, the rack A vertically slides in the assembling groove, the spring A for resetting the rack A is mounted in the assembling groove A, one end of the rack B horizontally slides in the assembling groove is provided with an arc plate, and a gear which is mounted in the assembling groove through a shaft is respectively meshed with the rack A and the rack B;

a fixed cylinder with a fixed ring at the top end is inserted into the cylindrical pile body, and a rotating sleeve is rotatably arranged at the lower part of the fixed cylinder; the inner sleeve surface of the rotary sleeve is provided with an internal thread which is in threaded fit with the external thread on the slide rod; a step ring is fixedly arranged in the middle of the fixed cylinder, and a plurality of clamping blocks are uniformly arranged on the upper surface of the step ring in the circumferential direction; the clamping ring with a plurality of clamping grooves uniformly arranged on the circumferential direction of the lower surface slides in the fixed cylinder and is positioned above the stepped ring; the clamping blocks are respectively matched with the clamping grooves one by one; one end of the spring is in contact with the lower surface of the clamping ring, and the other end of the spring is in contact with the upper surface of the middle part of the stepped ring; two key grooves are symmetrically formed in the inner ring surface of the clamping ring; one end of a telescopic cylinder with a C spring inside is fixedly connected with the upper surface of the clamping ring, and the other end of the telescopic cylinder is matched with the two arc plates; the slide bar is positioned in the stepped ring, the clamping ring and the telescopic cylinder; the two guide key strips slide in the two key grooves respectively; one end of the spring B is connected with the lower surface of the pressure bearing column, and the other end of the spring B is connected with the upper surface of the fixed ring;

the lower surface of the rotating sleeve is fixedly provided with a rotating cylinder; one end of the rotating rod is fixedly connected with the bottom of the outer cylinder of the rotary drum, and the other end of the rotating rod is provided with a drilling part;

the drilling part comprises a spiral sheet, a conical semi-ring with a guide block in the middle of the inner circular surface and a conical drill with a cylindrical end, wherein the rotating rod is fixedly connected with the end surface of the cylindrical end of the conical drill, and two guide grooves are symmetrically formed in the outer cylindrical surface of the cylindrical end of the conical drill; two ends of the two conical semi-rings are hinged with each other, and guide blocks of the two conical semi-rings are matched with the two guide grooves respectively; when the two guide blocks are respectively positioned in the two guide grooves, and the upper surfaces of the two conical semi-rings are coplanar with the end surface of the cylindrical end of the conical drill, the two conical semi-rings and the conical drill form a complete conical drill bit; the outer conical surface of the conical drill bit is distributed with spiral sheets; a rope groove is formed in the outer conical surface of the conical drill bit at the hinge point close to one end of the conical semi-ring, one end of the pull rope is connected with one end, close to the tip of the conical drill bit, of the rope groove, and the other end of the pull rope is connected with the corresponding hinge point at one end of the conical semi-ring; the conical semi-ring is matched with the cylindrical pile body;

2. A stake as claimed in claim 1, in which: the pressure bearing column is provided with a circular groove which is positioned right above the circular sliding groove; the top end of the sliding rod is provided with a turntable, the top end of the sliding rod penetrates through the top groove surface of the smooth groove of the bearing column, and the turntable is rotatably arranged in the circular groove.

3. A stake as claimed in claim 1, in which: for any one of the assembly grooves, a guide rail A is fixedly arranged on the groove surface at the top of the assembly groove, and a guide rail B is fixedly arranged on the groove surface at the side of the assembly groove; the rack A vertically slides in the guide rail A, one end of the spring A is connected with the inner wall of the guide rail A, and the other end of the spring A is connected with one end of the rack A in the guide rail A; one end of the rack B far away from the corresponding arc plate horizontally slides in the guide rail B.

4. A stake as claimed in claim 1, in which: the ring surface of the fixed ring contacted with the top end surface of the cylindrical pile body is a friction surface; the guide blocks of the two conical semi-rings are respectively in friction fit with the two guide grooves; the inner arc surface of the arc plate is processed into a smooth surface.

5. A stake as claimed in claim 1, in which: the inner cylinder surface of the lower part of the fixed cylinder is provided with a ring groove; the outer surface of the rotating sleeve is fixedly provided with a rotating ring which is rotatably arranged in the ring groove.

6. A stake as claimed in claim 1, in which: the diameter of the circle of the axial projection of the complete cone-shaped drill bit is equal to the outer diameter of the cylindrical pile body.

7. A stake as claimed in claim 1, in which: both sides of the guide block are provided with rubber gaskets.

8. A stake as claimed in claim 1, in which: the rack A is positioned in the spring B; the part of the rotating rod, which is close to the drilling part, is provided with a guide disc through a bearing, and the guide disc is positioned in the cylindrical pile body.

9. A stake as claimed in claim 1, in which: one end of the spring C is connected with the bottom of the outer cylinder of the telescopic cylinder, and the other end of the spring C is connected with one end of the inner cylinder, which is positioned at the outer cylinder; the elastic coefficient of the C spring is larger than that of the D spring.

10. A stake as claimed in claim 1, in which: when the sliding rod axially slides in the rotary sleeve and the sliding rod is in a non-rotating state, the rotary sleeve rotates relative to the sliding rod under the threaded matching of the external thread of the sliding rod and the internal thread of the rotary sleeve.