CN206581256U - Architectural engineering pile driving equipment - Google Patents
Architectural engineering pile driving equipment Download PDFInfo
- Publication number
- CN206581256U CN206581256U CN201720050232.7U CN201720050232U CN206581256U CN 206581256 U CN206581256 U CN 206581256U CN 201720050232 U CN201720050232 U CN 201720050232U CN 206581256 U CN206581256 U CN 206581256U
- Authority
- CN
- China
- Prior art keywords
- apex point
- drilling rod
- hole
- pile driving
- driving equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model provides a kind of architectural engineering pile driving equipment, including：Support；Hydraulic cylinder, its upper end is connected with support；Motor, it is connected with the lower end of hydraulic cylinder；Drill bit, it includes：Drilling rod, the output shaft of its upper end and motor is coaxially connected, stock inlet is offered on the upper surface of drilling rod, on the side wall of drilling rod multiple whitewashing seats are arranged at intervals with along its circumferencial direction, a gunniting hole is offered on each whitewashing seat, gunniting hole is connected with the inside of drilling rod, and helical blade is provided with the lateral wall of drilling rod；Apex point group, it includes a pair of first apex points and second apex point, and the bottom of the top of first apex point and second apex point respectively with the drilling rod is fixedly connected, and the height of the first apex point is less than the height of second apex point.The utility model has simple and reasonable, and during piling, whitewashing area is big and the characteristics of being not easy clay.
Description
Technical field
The utility model is related to building field, and in particular to a kind of architectural engineering pile driving equipment.
Background technology
At present, the piling machinery used on construction site has swivelling pile driver, and the structure of this piling machine is to utilize elevator
The drilling rod hanger bracket of machine pull-up, pile driving equipment of the rod bit to drifter drill for underground pore-forming is driven by unit head；Swivelling pile driver
The purpose to underground drilling rod is mainly realized by circumferentially rotating for drilling rod in piling, using being in the milk drilling rod drill while
To be cooled to drilling rod and cementing operations are carried out to drilling rod, the common main grout hole by drill rod end of grouting is carried out
Whitewashing, but existing drilling rod easy blockage phenomenon during being whitewashed, and it is small in the presence of whitewashing area, gunite effect is poor
The problem of, thus the construction effect and progress to piling machine bring strong influence.And existing pile driving equipment is in piling
During Clay Problem have a strong impact on piling efficiency, extend the engineering time, meanwhile, reduce the piling machine life-span.
Utility model content
A purpose of the present utility model is to solve the above problems, and provides the advantage that at least will be described later.
The utility model also has a purpose to be to provide a kind of architectural engineering pile driving equipment, its have it is simple and reasonable,
During piling, whitewashing area is big and is not easy the advantage of clay.
Set to realize according to these purposes of the present utility model and further advantage there is provided a kind of architectural engineering piling
It is standby, including：
Support；
Hydraulic cylinder, the upper end of hydraulic cylinder is fixedly connected with the support；
Motor, it is connected with the lower end of hydraulic cylinder, and hydraulic cylinder drive motor is moved up and down；
Drill bit, it includes：
Drilling rod, it is the cylindrical of inner hollow, is vertically set, the upper end of the drilling rod and the output of motor
Axle is coaxially connected, offers and is set on stock inlet, the side wall of the drilling rod along its circumferencial direction interval on the upper surface of the drilling rod
Multiple whitewashing seats are equipped with, a gunniting hole is offered on each whitewashing seat, the gunniting hole is the up-small and down-big round platform of diameter
Shape, the gunniting hole is connected with the inside of the drilling rod, the top seal of the gunniting hole, is set on the lateral wall of the drilling rod
There is helical blade, the helical blade is located at the top of the multiple whitewashing seat；
Apex point group, it includes a pair of first apex points and second apex point, and first apex point and second apex point are equal
For the cone that diameter is up big and down small, the top of first apex point and second apex point is consolidated with the bottom of the drilling rod respectively
Fixed connection, the pair of first apex point is set relative to the axisymmetrical of second apex point, and the height of first apex point is small
In the height of second apex point, second apex point is coaxially disposed with the drilling rod.
Preferably, described architectural engineering pile driving equipment, the cone angle of second apex point is 20~30 °, described first
The cone angle of apex point is 40~80 °.
Preferably, along first apex point on described architectural engineering pile driving equipment, the side wall of first apex point
The circumferencial direction of one cross section is arranged at intervals with multiple blades, and the blade of the blade is down, remote described on the blade
One end of first apex point is tilted down, and the angle between the axis of the blade and first apex point is 30~60 °.
Preferably, one end away from first apex point is perpendicular on described architectural engineering pile driving equipment, the blade
Shadow is delivered directly positioned at the outside of the vertical projection of the drilling rod.
Preferably, described architectural engineering pile driving equipment, it is specific that the gunniting hole is connected with the inside of the drilling rod
Mode is：
The inside of the whitewashing seat is horizontally disposed a whitewashing passage, and the whitewashing passage is cylindrical, institute
Inside of the two ends of whitewashing passage respectively with the gunniting hole and the drilling rod is stated to connect.
Preferably, described architectural engineering pile driving equipment, the outline curvilinear equation of the helical blade is：
X=0.22 × 10-4t3- 0.0084t2+1.81t；Y=﹣ 0.35 × 10-4t3+0.014t2- 1.26t；
Wherein, t is 3~140.
Preferably, multiple sharp portions, the point are provided with described architectural engineering pile driving equipment, the helical blade
Thorn portion is located at the lower section of the helical blade, the tip of the sharp portion down, the top of the sharp portion and the drilling rod
Distance between lateral wall is more than the distance between the lateral wall of the bottom of the sharp portion and the drilling rod, the sharp portion with it is described
Angle between the axis of drilling rod is 50~70 °.
Preferably, the top difference of described architectural engineering pile driving equipment, first apex point and second apex point
The concrete mode being fixedly connected with the bottom of the drilling rod is：
Apex point seat is provided between the apex point group and the drilling rod, the bottom convex of the drilling rod is raised provided with one
Portion, the top down of the apex point seat is provided with the depressed part being engaged with the lug boss, and the lug boss inserts the depression
In portion, a first through hole is offered on the apex point seat in the horizontal direction, the first through hole runs through apex point seat and described
The second through hole is offered on depressed part, the lug boss, second through hole is connected with the first through hole, a latch passes through institute
State first through hole and second through hole.
Preferably, formed on described architectural engineering pile driving equipment, the apex point seat on the inwall of the first through hole,
And formed on the lug boss be provided with the inwall of second through hole on internal thread, the latch be provided with it is described
The external screw thread that internal thread matches, the latch is threadedly coupled with apex point seat and the lug boss.
Preferably, described architectural engineering pile driving equipment, the sharp portion is made up of Hardmetal materials.
The utility model at least includes following beneficial effect：
1st, the up-small and down-big truncated cone-shaped of gunniting hole diameter of the present utility model, makes slurries be sprayed in fan-shaped, is sprayed in piling
Slurry is not susceptible to clogging, and there is whitewashing area greatly, and gunite effect is good.
2nd, drill bit group of the present utility model includes a pair of first apex points and second apex point, and the height of the first apex point
Less than the height of second apex point, so in piling, the second apex point plays good positioning action.
3rd, to be detachably connected between drilling rod and apex point group of the present utility model, conveniently replaced apex point group or drilling rod.
4th, the profile for the helical blade that the utility model is used is in gerotor type curve, is shown as on helical blade gentle
Concaveconvex structure, the stress field of this special construction shows as continuous fluctuating nature, and the continued jitters of stress field cause soil to glue
The probability of attached blade is substantially reduced, and is shown excellent reducing adhesion performance, is reduced the adhesion of soil and helical blade surface
Probability, reduces resistance during piling.
Brief description of the drawings
Fig. 1 is the structural representation of architectural engineering pile driving equipment described in the utility model；
Fig. 2 is the structural representation of drill bit described in the utility model；
Fig. 3 is the partial enlarged drawing at A in Fig. 2；
Fig. 4 is the structural representation that drilling rod described in the utility model coordinates with apex point seat.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to explanation
Book word can be implemented according to this.
It should be noted that in description of the present utility model, term " transverse direction ", " longitudinal direction ", " on ", " under ", " preceding ",
The orientation or position relationship of the instruction such as " rear ", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " be based on
Orientation shown in the drawings or position relationship, are for only for ease of description the utility model and simplify description, are not to indicate or dark
Specific orientation must be had, with specific azimuth configuration and operation by showing the device or element of meaning, therefore it is not intended that right
Limitation of the present utility model.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of architectural engineering pile driving equipment, including：
Support 1；
Hydraulic cylinder 2, the upper end of hydraulic cylinder 2 is fixedly connected with the support 1；
Motor 3, it is connected with the lower end of hydraulic cylinder 2, and the drive motor 3 of hydraulic cylinder 2 is moved up and down；
Drill bit, it includes：
Drilling rod 4, it is the cylindrical of inner hollow, is vertically set, upper end and the motor 2 of the drilling rod 4
Output shaft is coaxially connected, is offered on the upper surface of the drilling rod 4 on stock inlet, the side wall of the drilling rod 4 along its circumferencial direction
It is arranged at intervals with multiple whitewashing seats 41, each whitewashing seat 41 and offers a gunniting hole 42, the gunniting hole 42 is diameter
Up-small and down-big truncated cone-shaped, the gunniting hole 42 is connected with the inside of the drilling rod 4, the top seal of the gunniting hole 42, institute
Helical blade 44 is provided with the lateral wall for stating drilling rod 4, the helical blade 44 is located at the top of the multiple whitewashing seat；
Apex point group, it includes a pair of first apex points 51 and second apex point 52, first apex point 51 and described second
Apex point 52 is the up big and down small cone of diameter, the top of first apex point 51 and second apex point 52 respectively with it is described
The bottom of drilling rod 4 is fixedly connected, and the pair of first apex point 51 is set relative to the axisymmetrical of second apex point 52, described
The height of first apex point 51 is less than the height of second apex point 52, and second apex point 52 is coaxially disposed with the drilling rod 4.
The architectural engineering pile driving equipment working condition that this programme is provided is as follows：Support 1 place hydraulic cylinder 2 move downward by
Motor 3 and drill bit are pushed down to correct position, are then turned on motor 3, and drilling rod 4 rotates under the drive of the rotating shaft of motor 3, carry out
Drilling, the upper surface of drilling rod 4 offers stock inlet, mud is injected from stock inlet, and whitewash on seat by what is set on drilling rod 4
Gunniting hole 42 sprays, and because gunniting hole 42 is up-small and down-big truncated cone-shaped, mud is during gunniting hole 42 is entered, in drilling rod 4
Rotation drive under, sprayed in fan shape, the area of outflow is big, and the top seal of gunniting hole 42, mud when can prevent piling
Soil results in blockage from top into gunniting hole 42；The apex point group for the architectural engineering pile driving equipment that this programme is provided includes a pair first
Apex point 51 and second apex point 52, and height of the height less than second apex point 52 of the first apex point 51, in piling process
In the second apex point 52 can play a part of axially position.
In another embodiment, described architectural engineering pile driving equipment, the cone angle of second apex point 52 is 20~30 °,
The cone angle of first apex point 51 is 40~80 °.I.e. the second apex point 52 is more tiny, is conducive to positioning, and the cone angle of the first apex point 51
It is i.e. wider greatly, shear action can be played to soil.
In another embodiment, along described on described architectural engineering pile driving equipment, the side wall of first apex point 51
The circumferencial direction of one cross section of one apex point 51 is arranged at intervals with multiple blades 53, and the blade of the blade 53 is down, described
One end away from first apex point 51 is tilted down on blade 53, between the axis of the blade 53 and first apex point 51
Angle is 30~60 °.The blade 53 tilted down is set in the side wall of the first apex point 51, the first apex point 51 can be made preferably native
Earth is cut.
In another embodiment, away from first apex point 51 on described architectural engineering pile driving equipment, the blade 53
One end vertical projection be located at the drilling rod 4 vertical projection outside.Blade 53 stretches out drilling rod 4 i.e. in terms of longitudinal cross-section
Outside, so prevent that blade 53 is too short, and do not reach the effect that the first apex point 51 is cut soil.
In another embodiment, described architectural engineering pile driving equipment, the inside of the gunniting hole 42 and the drilling rod 4 connects
Logical concrete mode is：
The inside of the whitewashing seat 41 is horizontally disposed a whitewashing passage 43, and the whitewashing passage 43 is cylinder
Shape, the inside of the two ends of the whitewashing passage 43 respectively with the gunniting hole 42 and the drilling rod 4 is connected.Pass through passage 43 of whitewashing
Drilling rod 4 is set to be connected with gunniting hole 42, it is to avoid directly to open on drilling rod 4 gunniting hole in the past, reduction soil is directly entered in drilling rod
Or block the possibility of gunniting hole.
In another embodiment, described architectural engineering pile driving equipment, the outline curvilinear equation of the helical blade 44
For：
X=0.22 × 10-4t3- 0.0084t2+1.81t；Y=﹣ 0.35 × 10-4t3+0.014t2- 1.26t；
Wherein, t is 3~140.By giving helical blade 44 to the distance of drilling rod 4 and the upper-lower height of spiral
To determine the outer contour shape of helical blade 44, this gerotor type curve shows as gentle concavo-convex knot on helical blade 44
Structure, the stress field of this special construction shows as continuous fluctuating nature, and the continued jitters of stress field cause soil adhesion blade
Probability substantially reduce, such a structure soil box experiment in show excellent reducing adhesion performance.
In another embodiment, multiple spines are provided with described architectural engineering pile driving equipment, the helical blade 44
Portion 45, the sharp portion 45 be located at the helical blade 44 lower section, the sharp portion 45 tip down, the sharp portion 45
Top and the drilling rod 4 lateral wall between distance be more than the sharp portion 45 bottom and the drilling rod 4 lateral wall between
Distance, the angle between the axis of the sharp portion 45 and the drilling rod 4 is 50~70 °.Spine is set on helical blade 44
Portion 45, sharp portion 45 is tilted down, and sharp portion 45 is carried out after cutting crushing to the soil of helical blade 44, in helical blade 44
Rotation is delivered up under driving, and certain helical blade 44 itself can also be cut soil.
In another embodiment, described architectural engineering pile driving equipment, first apex point 51 and second apex point 52
The concrete mode that is fixedly connected respectively with the bottom of the drilling rod 4 of top be：
Apex point seat 6 is provided between the apex point group and the drilling rod 4, the bottom convex of the drilling rod 4 is convex provided with one
Portion 46 is played, the top down of the apex point seat 6 is provided with the depressed part 61 being engaged with the lug boss 46, and the lug boss 46 is inserted
Enter in the depressed part 61, offer a first through hole in the horizontal direction on the apex point seat 6, the first through hole is through described
The second through hole, second through hole and the first through hole are offered on apex point seat 6 and the depressed part 61, the lug boss 46
Connection a, latch 7 passes through the first through hole and second through hole.
By setting apex point seat 6 between apex point group and drilling rod 4, make between the first apex point 51, the second apex point 52 and drilling rod 4
It is detachably connected, when apex point group or drill pipe wear, one of them can be changed and reduce cost without integral replacing drill bit.
Depressed part 61 specifically is provided with apex point seat 6, lug boss 46 is set in the bottom of drilling rod 4, passes through depressed part 61 and lug boss
46, which cooperate, quickly to position, and facilitate the connection of apex point seat 6 and drilling rod 4.One is offered in the horizontal direction on apex point seat 6
The second through hole is offered on first through hole, lug boss 46, passes through or extracts the second through hole and first through hole by latch 7, make brill
Dismountable connection is realized between sharp seat 6 and drilling rod 4, and 6 lower ends of apex point seat are connected with the first apex point 51, the second apex point 52, i.e.,
Realize that the first apex point 51, the second apex point 52 are detachably connected with drilling rod 4.
In another embodiment, the first through hole is formed on described architectural engineering pile driving equipment, the apex point seat 6
It is provided with internal thread, the latch 7 and sets on the inwall that second through hole is formed on inwall, and on the lug boss 46
The external screw thread matched with the internal thread is equipped with, the latch 7 is threadedly coupled with apex point seat 6 and the lug boss 46.It is logical
Crossing threaded connection easily can screw out or screw latch 7, more convenient when needing separation drilling rod 4 with apex point group, and pass through spiral shell
Line connecting bolt 7 is not easy to loosen so that drill bit operation is more stable during piling.
In another embodiment, described architectural engineering pile driving equipment, the sharp portion 45 is made up of Hardmetal materials.
The material of sharp portion 45 is hard alloy, and hard alloy has very strong hardness and wearability, can be to rock hard in soil
Layer is cut and crushed.
Although embodiment of the present utility model is disclosed as above, it is not restricted in specification and embodiment
Listed to use, it can be applied to various suitable fields of the present utility model completely, for those skilled in the art,
Other modification is easily achieved, therefore under the universal limited without departing substantially from claim and equivalency range, this reality
Specific details is not limited to new and shown here as the legend with description.
Claims (10)
1. a kind of architectural engineering pile driving equipment, it is characterised in that including：
Support；
Hydraulic cylinder, the upper end of hydraulic cylinder is fixedly connected with the support；
Motor, it is connected with the lower end of hydraulic cylinder, and hydraulic cylinder drive motor is moved up and down；
Drill bit, it includes：
Drilling rod, it is the cylindrical of inner hollow, is vertically set, the upper end of the drilling rod and the output shaft of motor are same
Axle is connected, and is offered and is arranged at intervals with stock inlet, the side wall of the drilling rod along its circumferencial direction on the upper surface of the drilling rod
A gunniting hole is offered on multiple whitewashing seats, each whitewashing seat, the gunniting hole is the up-small and down-big truncated cone-shaped of diameter, institute
The inside that gunniting hole is stated with the drilling rod is connected, the top seal of the gunniting hole, and spiral shell is provided with the lateral wall of the drilling rod
Vane piece, the helical blade is located at the top of the multiple whitewashing seat；
Apex point group, it includes a pair of first apex points and second apex point, and first apex point and second apex point are straight
The top of the up big and down small cone in footpath, first apex point and second apex point is fixed with the bottom of the drilling rod respectively to be connected
Connect, the pair of first apex point is set relative to the axisymmetrical of second apex point, the height of first apex point is less than institute
The height of the second apex point is stated, second apex point is coaxially disposed with the drilling rod.
2. architectural engineering pile driving equipment as claimed in claim 1, it is characterised in that the cone angle of second apex point is 20~
30 °, the cone angle of first apex point is 40~80 °.
3. architectural engineering pile driving equipment as claimed in claim 1, it is characterised in that along described on the side wall of first apex point
The circumferencial direction of one cross section of the first apex point is arranged at intervals with multiple blades, the blade of the blade down, the blade
Upper one end away from first apex point is tilted down, and the angle between the axis of the blade and first apex point is 30~
60°。
4. architectural engineering pile driving equipment as claimed in claim 3, it is characterised in that away from first apex point on the blade
One end vertical projection be located at the drilling rod vertical projection outside.
5. architectural engineering pile driving equipment as claimed in claim 1, it is characterised in that the inside of the gunniting hole and the drilling rod
The concrete mode of connection is：
The inside of the whitewashing seat is horizontally disposed a whitewashing passage, and the whitewashing passage is cylindrical, the spray
Inside of the two ends of passage respectively with the gunniting hole and the drilling rod is starched to connect.
6. architectural engineering pile driving equipment as claimed in claim 1, it is characterised in that the outline curve side of the helical blade
Cheng Wei：
X=0.22 × 10-4t3- 0.0084t2+1.81t；Y=﹣ 0.35 × 10-4t3+0.014t2- 1.26t；
Wherein, t is 3~140.
7. architectural engineering pile driving equipment as claimed in claim 1, it is characterised in that multiple points are provided with the helical blade
Thorn portion, the sharp portion be located at the helical blade lower section, the sharp portion tip down, the top of the sharp portion with
Distance between the lateral wall of the drilling rod is more than the distance between the lateral wall of the bottom of the sharp portion and the drilling rod, the point
Angle between the axis of thorn portion and the drilling rod is 50~70 °.
8. architectural engineering pile driving equipment as claimed in claim 1, it is characterised in that first apex point and second apex point
The concrete mode that is fixedly connected respectively with the bottom of the drilling rod of top be：
Apex point seat is provided between the apex point group and the drilling rod, the bottom convex of the drilling rod is provided with a lug boss, institute
The top down for stating apex point seat is provided with the depressed part being engaged with the lug boss, and the lug boss is inserted in the depressed part,
A first through hole is offered on the apex point seat in the horizontal direction, the first through hole is through apex point seat and the depression
The second through hole is offered on portion, the lug boss, second through hole is connected with the first through hole, a latch is through described the
One through hole and second through hole.
9. architectural engineering pile driving equipment as claimed in claim 8, it is characterised in that form described first on the apex point seat and lead to
It is provided with the inwall that second through hole is formed on the inwall in hole, and on the lug boss on internal thread, the latch
The external screw thread matched with the internal thread is provided with, the latch is threadedly coupled with apex point seat and the lug boss.
10. architectural engineering pile driving equipment as claimed in claim 7, it is characterised in that the sharp portion is by Hardmetal materials
It is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720050232.7U CN206581256U (en) | 2017-01-19 | 2017-01-19 | Architectural engineering pile driving equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720050232.7U CN206581256U (en) | 2017-01-19 | 2017-01-19 | Architectural engineering pile driving equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206581256U true CN206581256U (en) | 2017-10-24 |
Family
ID=60111208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720050232.7U Expired - Fee Related CN206581256U (en) | 2017-01-19 | 2017-01-19 | Architectural engineering pile driving equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206581256U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989095A (en) * | 2017-12-15 | 2018-05-04 | 中科纳达新材料（广西）有限公司 | A kind of pit digging device for building lot |
| CN112502148A (en) * | 2020-11-30 | 2021-03-16 | 靖江恩沛智能设备有限公司 | Aquaculture agricultural is with regional energy-conserving robot of pile |
| CN115136754A (en) * | 2022-07-05 | 2022-10-04 | 李富程 | Super-deep rock drilling and soil breaking tillage machine |
-
2017
- 2017-01-19 CN CN201720050232.7U patent/CN206581256U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989095A (en) * | 2017-12-15 | 2018-05-04 | 中科纳达新材料（广西）有限公司 | A kind of pit digging device for building lot |
| CN112502148A (en) * | 2020-11-30 | 2021-03-16 | 靖江恩沛智能设备有限公司 | Aquaculture agricultural is with regional energy-conserving robot of pile |
| CN115136754A (en) * | 2022-07-05 | 2022-10-04 | 李富程 | Super-deep rock drilling and soil breaking tillage machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203452083U (en) | Rotary expanding pile construction equipment and grout feeding device | |
| CN106545011B (en) | Energy-efficient multidirectional mixing pile pile making method | |
| CN206581256U (en) | Architectural engineering pile driving equipment | |
| CN104763343B (en) | A kind of multistage borehole-enlarging drilling tool and its expanding method of the bionical nozzle of build-in | |
| CN207828996U (en) | A kind of joint building lot | |
| CN207419485U (en) | A kind of solid wall device of bored concrete pile whitewashing under water | |
| CN103291222A (en) | Reamer bit for building long-screw pile machine | |
| CN106368213B (en) | The energy-efficient multidirectional mixing pile pile-forming equipment of self-reaction force | |
| CN206128057U (en) | Diversified stereo stirring drill bit | |
| CN105603971A (en) | Drill rod assembly of pile driver | |
| CN102979091B (en) | Method for constructing cement jet grouting pile with fine aggregate concrete core | |
| CN206396745U (en) | Long spire stake machine with the Counterboring apparatus that spins | |
| CN207608903U (en) | Detachable rotation type drilling pile pile | |
| CN206873444U (en) | A kind of spiral sprinkling irrigation extruding combination unit | |
| CN203321328U (en) | Reamer bit for construction long screw pile machine | |
| CN201428129Y (en) | Heterotypic cement soil purdah stake stirring and directional jetting with long spiral and drilling tool for construction | |
| CN104533284B (en) | A kind of long spire stake machine | |
| CN209369747U (en) | A kind of auger stem | |
| CN2854044Y (en) | Square pile drill for boring and concreting | |
| CN208203183U (en) | It is a kind of to inhale the downhole hardware that principle is swept using volume | |
| CN104846820B (en) | Hold type screw-type Squeezing Soil Pile pile-forming equipment and bore forming method in a kind of end | |
| CN208122763U (en) | A kind of diameter changing drilling tool | |
| CN2540491Y (en) | Rotary drilling machine for mould concrete pile | |
| CN212612452U (en) | Groutable anchor rod | |
| CN206722764U (en) | A kind of new four wings PDC drill bit of band cone tooth |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171024 Termination date: 20220119 |