CN210097441U - Slurry mixer of trenchless horizontal directional drilling machine - Google Patents

Slurry mixer of trenchless horizontal directional drilling machine Download PDF

Info

Publication number
CN210097441U
CN210097441U CN201920724815.2U CN201920724815U CN210097441U CN 210097441 U CN210097441 U CN 210097441U CN 201920724815 U CN201920724815 U CN 201920724815U CN 210097441 U CN210097441 U CN 210097441U
Authority
CN
China
Prior art keywords
funnel
tank body
stirring
fixed
bevel gear
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.)
Active
Application number
CN201920724815.2U
Other languages
Chinese (zh)
Inventor
莫涛
彭立钧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Haoyu Construction Engineering Co Ltd
Original Assignee
Anhui Haoyu Construction Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anhui Haoyu Construction Engineering Co Ltd filed Critical Anhui Haoyu Construction Engineering Co Ltd
Priority to CN201920724815.2U priority Critical patent/CN210097441U/en
Application granted granted Critical
Publication of CN210097441U publication Critical patent/CN210097441U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The utility model relates to a directional rig of non-excavation level mixes thick liquid ware, including a jar body, pan feeding mouth, water inlet, discharge gate, its characterized in that: the stirring device also comprises a funnel which is connected with the inner wall of the tank body and rotates relative to the tank body, a stirring assembly which is positioned in the tank body, and a driving assembly which drives the stirring assembly and the funnel to rotate; the device has the advantages of realizing complete stirring and mixing of falling objects, reducing energy consumption in the stirring process, improving stirring efficiency, clearing accumulated falling objects and improving safety.

Description

Slurry mixer of trenchless horizontal directional drilling machine
Technical Field
The utility model relates to a slurrying device especially relates to a directional rig of non-excavation level mixes thick liquid ware.
Background
The non-excavation is a new construction technology for laying, replacing and repairing various underground pipelines by utilizing various rock-soil drilling equipment and technical means under the condition of excavating on a very small part of the earth surface (generally referred to as small-area excavation at an inlet and an outlet) in the modes of guiding, directional drilling and the like, does not obstruct traffic, does not damage green lands and vegetation, does not influence the normal life and work order of shops, hospitals, schools and residents, solves the problem that the traditional excavation construction interferes with the life of the residents, and damages and adverse effects on the traffic, environment and the foundation of surrounding buildings, and therefore has higher social and economic effects.
The working principle of the horizontal guide drilling machine is as follows: during construction, according to a designed drilling track (generally in an arc shape), a drilling machine capable of drilling from the earth surface is adopted to drill an approximately horizontal guide hole, then a large-diameter expanding bit and a to-be-laid working pipeline with the diameter smaller than that of the expanding bit are replaced after the guide bit, then reverse expanding is carried out, the to-be-laid pipeline is pulled back into the drill hole, and when all drill rods are pulled back, the pipe laying work is finished at the same time. Therefore, when the pilot hole is drilled, a reasonable mud proportioning scheme is made in detail according to different geological structures, different mud formulas are selected under different geological conditions, and mud can better protect the hole wall, reduce the friction coefficient of the hole wall and prevent a drilling tool from being stuck.
Chinese patent No. CN206334561U discloses a slurry mixer for trenchless horizontal directional drilling machine, which comprises a frame, a charging hopper, and a slurry mixing pipe assembly. The invention provides a three-way joint, which combines a pulp inlet, a water inlet and a discharge port together and simply mixes pulp and water to form pulp.
The existing technology has the disadvantages that the pulp mixing process is realized simply by using the impact force and the gravity of water and pulp entering the pulp mixer, and the process easily causes incomplete pulp mixing and has adverse effect on the next step of pulping.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a directional rig of non-excavation level mixes thick liquid ware, it has solved the incomplete problem of muddy thick liquid in-process, has the advantage of mixing thick liquid completely, the operation is stable, be convenient for clear up.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a slurry mixer of a trenchless horizontal directional drilling machine comprises a tank body, a feeding port, a water inlet, a discharging port, a hopper, a stirring assembly, a driving assembly and a control assembly, wherein the hopper is connected to the inner wall of the tank body and rotates relative to the tank body; wherein the feeding port and the water inlet are arranged above the funnel, and the discharging port is arranged below the funnel.
By adopting the scheme, objects entering from the feeding port and the water inlet are gathered together through the gathering action of the funnel, and the mixture can be preliminarily mixed by the rotating motion of the funnel relative to the tank body; and the driving component drives the stirring component to operate, so that the mixing and stirring can be fully performed.
The utility model discloses further set up to: a first chute for the funnel to rotate along the rotation center of the funnel is arranged in the tank body; the stirring component comprises a cross rod transversely arranged in the tank body and a stirring sheet on the cross rod; the driving assembly comprises a motor fixed on the outer wall of the tank body, a first bevel gear fixed on a motor transmission shaft, a second bevel gear fixed at one end of the cross rod, a gear ring surrounding the outer edge of the funnel, an extension rod fixedly connected with the motor transmission shaft, and a first straight gear fixed at one end of the extension rod; the gear ring is fixed on the hopper and is rotationally connected with the first sliding chute, and the first bevel gear and the second bevel gear are meshed and connected; and the gear ring is meshed and connected with the first straight gear.
Adopt above-mentioned scheme, the motor can drive funnel and stirring subassembly simultaneously. The motor can drive the stirring component to stir the mixture; the first straight gear on the motor extension rod is meshed with the gear ring on the outer edge of the funnel, and the motor drives the funnel to rotate, so that two falling objects can be preliminarily mixed.
The utility model discloses further set up to: a first chute for the funnel to rotate along the rotation center of the funnel is arranged in the tank body; the stirring assembly comprises a stirring sheet fixed on the upper surface of the funnel; the driving assembly comprises a motor fixed on the outer wall of the tank body, a spur gear II connected with a transmission shaft of the motor, and a gear ring surrounding the outer edge of the funnel; the gear ring is fixed on the hopper and is rotationally connected with one of the sliding chutes; the gear ring is meshed with the straight gear II.
Adopt above-mentioned scheme, the straight-teeth gear two through transmission shaft on the motor is connected with the ring gear meshing of funnel outward flange, and the motor drives the funnel and rotates to drive the stirring subassembly on it and function, on the stirring subassembly was fixed in the funnel, both collected whereabouts thing and stirred the mixture to whereabouts thing, retrench structure, reduce cost.
The utility model discloses further set up to: a first chute for the funnel to rotate along the rotation center of the funnel is arranged in the tank body; the stirring assembly comprises a stirring sheet fixed on the upper surface of the funnel; the driving assembly comprises a waterwheel sheet positioned below the feeding port and the water inlet, a transmission rod used as a rotation center of the waterwheel sheet, a bevel gear III connected with one end of the transmission rod, and a bevel gear IV surrounding the outer edge of the funnel; the bevel gear IV is fixed on the funnel and is rotationally connected with the chute; the bevel gear IV is in meshed connection with the bevel gear III; wherein the plane formed by the axis of the feeding port and the axis of the water inlet is parallel to the axis of the transmission rod.
By adopting the scheme, falling objects are poured on the blades of the waterwheel blades to drive the waterwheel blades to rotate, so that the gravitational potential energy of the falling objects is converted into the kinetic energy of the waterwheel blades, and the bevel gears are driven to rotate; through the meshing connection of bevel gear three and bevel gear four, the kinetic energy of waterwheel piece drives the funnel and rotates, is fixed in the stirring piece on the funnel from the drive, has realized mixing to the stirring of whereabouts thing. Has the advantages of reasonable energy utilization and cost saving.
The utility model discloses further set up to: the internal well core rod of a fixed connection in the funnel that is equipped with of jar, well core rod's axis and the rotation center coincidence of funnel, well core rod and jar internal wall rotate to be connected.
Adopt above-mentioned scheme, can realize that the funnel when rotating, the center of rotation keeps unchangeable, improves the stability when the initial mixture of junk, and reduces rocking of the whole jar of body.
The utility model discloses further set up to: and a roller wheel in rolling connection with the funnel is arranged in the first sliding groove.
Adopt above-mentioned scheme, from the slip connection change rolling connection into between original funnel and the spout, improve smooth and easy nature and the stability of funnel when rotating, reduce the energy consumption.
The utility model discloses further set up to: the tank body is internally provided with an inclined bottom at the lowest part close to the discharge hole, a falling port leading to the outside of the tank body at the lowest part of the inclined bottom and a sealing cover for opening and closing the falling port.
Adopt above-mentioned scheme, at muddy thick liquid ware operation in-process, the whereabouts thing deposit that can appear the too big overweight of volume in jar body bottom, pile up probably to block up the discharge gate when too much, cause the influence to subsequent handling. The inclined bottom can make the falling objects accumulated at one position by gravity, and the falling port and the sealing cover which can be opened and closed are arranged below the position, so that the accumulated falling objects can be removed from the tank body, and the safety is improved.
The utility model discloses further set up to: and the tank body is provided with a second sliding groove for the sliding of the sealing cover.
By adopting the scheme, the sliding groove II can enable the sealing cover to be opened and closed more conveniently.
To sum up, the utility model discloses following beneficial effect has:
1. the motor drives the hopper and the stirring assembly simultaneously to realize complete stirring and mixing of falling objects;
2. the bottom surface of the pouring is arranged, and accumulated falling objects are removed by gravity accumulation, so that the safety is improved.
Drawings
FIG. 1 is an overall structural view of embodiment 1;
FIG. 2 is a structural view of a first chute in embodiment 1;
FIG. 3 is a structural view of the inclined bottom of embodiment 1;
FIG. 4 is an overall structural view of embodiment 2;
fig. 5 is an overall configuration diagram of embodiment 3.
In the figure, 1, a tank body; 2. a feeding port; 3. a water inlet; 4. a discharge port; 5. a funnel; 10. a stirring assembly; 20. a drive assembly; 11. rotating the first base; 12. a sealing cover; 13. a drop opening; 14. a first sliding chute; 15. a roller; 16. a second chute; 17. a sloped bottom; 18. a second rotating seat; 19. a second opening; 21. A first opening; 22. a third rotating seat; 23. opening three; 51. a center pole; 52. a support; 53. a first supporting seat; 101. a stirring sheet; 102. a cross bar; 201. a motor; 202. a first bevel gear; 203. a second bevel gear; 204. an extension rod; 205. a first straight gear; 206. a ring gear; 207. a second supporting seat; 208. a second straight gear; 209. a fourth bevel gear; 210. a third bevel gear; 211. a transmission rod; 212. provided is a waterwheel sheet.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1: the slurry mixer of the trenchless horizontal directional drilling machine is shown in figure 1 and comprises a tank body 1, a hopper 5 positioned in the tank body 1, a stirring assembly 10 positioned in the tank body 1, and a driving assembly 20 for driving the stirring assembly 10 and the hopper 5 to rotate; wherein the top of the tank body 1 is provided with a feed inlet 2 for feeding slurry and a water inlet 3 for feeding water, the slurry injected from the feed inlet 2 and the water injected from the water inlet 3 are mixed again by the rotation of the funnel 5 driven by the driving component 20 and the second mixing of the stirring component 10, and finally the mixed slurry is discharged from a discharge outlet 4 arranged at the bottom of the tank body 1.
Referring to fig. 1 and 2, a first annular chute 14 recessed along the circumferential direction and a second rotating seat 18 protruding along the radial direction are respectively distributed on the inner wall of the tank body 1 from top to bottom. The wall surface of the tank body 1 opposite to the second rotating seat 18 along the radial direction is provided with a second opening 19 in a penetrating way along the radial direction, and the inner wall of the first sliding groove 14 at the same axial position with the second opening 19 is provided with a first opening 21 along the radial direction.
As shown in fig. 3, the part of the can body 1 below the second rotating seat 18 is provided with an inclined bottom 17, a falling port 13 located at the lowest position of the inclined bottom 17, a sealing cover 12 for closing the falling port 13 and a second sliding groove 16 located at the outer bottom of the can body 1, the sealing cover 12 is connected with the second sliding groove 16 in a sliding manner, the sliding direction of the sealing cover 12 is parallel to the inclined bottom 17, and the lowest position of the discharge port 4 is higher than the discharge port 13 and lower than the second rotating seat 18.
Referring to fig. 1, the hopper 5 is located below the feeding port 2 and the water inlet 3, a gear ring 206 is fixed around the outer edge of the hopper 5, the gear ring 206 is embedded in the first sliding groove 14 and rotates along the circumferential direction of the first sliding groove 14, and a roller 15 in rolling connection with the side surface of the gear ring 206 is arranged on the inner side surface of the first sliding groove 14. A central rod 51 passing through an outlet of the funnel 5 is axially arranged at the rotating center of the funnel 5, a support 52 is fixed on the central rod 51, and the support 52 is fixedly connected with the upper surface of the funnel 5; a rotating seat I11 is arranged at the center of the inner top of the tank body 1, a supporting seat I53 is fixedly connected to the middle section of the inner wall of the tank body 1, and the supporting seat I53 is fixed with the inner wall of the tank body in a frame body form; two ends of the central rod 51 are respectively and rotatably connected with the first rotating seat 11 and the first supporting seat 53.
The stirring assembly 10 comprises a cross bar 102 positioned below the first supporting seat 53 and a stirring sheet 101 fixed on the cross bar 102, wherein the cross bar 102 is transversely arranged in the tank body 1, one end of the cross bar 102 is rotatably connected with the rotating seat 18, and the other end of the cross bar 102 penetrates through the second opening 19; wherein, a pair of angular contact ball bearings arranged at the second opening 19 are respectively matched with the second opening 19 and the cross bar 102.
The driving assembly 20 comprises a motor 201 fixed on the outer wall of the tank body 1, a first bevel gear 202 fixed on a transmission shaft of the motor 201, a second bevel gear 203 fixed on one end of the cross rod 102 far away from the first rotating seat 11, an extension rod 204 connected with the motor 201 through a coupler, and a first straight gear 205 fixed on one end of the extension rod 204; the first bevel gear 202 is in meshed connection with the second bevel gear 203; the gear ring 206 is in meshed connection with the spur gear I205 at the opening I21. The second supporting seat 207 is arranged outside the tank body 1, the extension rod 204 is connected with the second supporting seat 207 through a pair of deep groove ball bearings in a matched mode, and the motor 201 drives the funnel 5 and the stirring sheet 101 to rotate simultaneously.
Working principle (refer to fig. 1, 2 and 3)
The slurry and the water from the feeding port 2 and the water inlet 3 respectively fall on two sides of the funnel 5 at the beginning, the motor 201 is started, the funnel 5 is driven to rotate by the motor 201, and the position of the slurry and the water falling on the funnel 5 is changed along with the rotation of the funnel 5 at the moment, so that the primary mixing of the slurry and the water is realized; then the primarily mixed slurry and water are gathered together by the gathering action of the funnel 5 and continuously fall from the outlet of the funnel 5, and the stirring action is enhanced by the stirring action of the blades on the stirring blades 101 on the slurry and water and the driving of the motor 201, so that the complete mixing of the slurry and the water is realized.
During the operation of the slurry mixer, falling objects with overlarge volume and overweight are deposited at the bottom of the tank body 1, the inclined bottom 17 can be arranged to use gravity to enable the falling objects to be accumulated at one position, the falling port 13 and the opening-closing type sealing cover 12 are arranged below the lowest position of the inclined bottom, and the accumulated falling objects can be removed from the tank body 1.
Example 2: as shown in fig. 4, the difference from embodiment 1 is that the stirring member 10 is a stirring blade 101 fixed to the upper surface of the hopper 5; the driving assembly 20 comprises a motor 201 fixed on the outer wall of the tank body 1, a second spur gear 208 connected with a transmission shaft of the motor 201, and a gear ring 206 circularly fixed on the outer edge of the funnel 5, wherein the gear ring 206 is in meshed connection with the second spur gear 208 at the first opening 21.
Principle of operation
The motor 201 drives the funnel 5 to rotate, thereby driving the stirring blade 101 on the funnel 5 to rotate, so that the stirring blade 101 can stir and mix the slurry and the water.
Example 3: as shown in fig. 5, the difference from the embodiment 1 is that the can body 1 is provided with a rotating seat three 22 positioned on the inner wall and an opening three 23 communicating the inside and the outside of the can body 1; the stirring component 10 is a stirring sheet 101 fixed on the upper surface of the funnel 5; the driving assembly 20 comprises two waterwheel blades 212 respectively positioned below the feeding port 2 and the water inlet port 3, a driving rod 211 which is connected with the two waterwheel blades 212 and is the rotating center of the waterwheel blades, a bevel gear III 210 which is connected with one end of the driving rod 211 penetrating through the opening III 23, and a bevel gear IV 209 which surrounds the outer edge of the funnel 5; a bevel gear IV 209 is fixed on the hopper 5, the bevel gear IV 209 is meshed with a bevel gear III 210 at the first opening 21, a pair of bearings arranged at the third opening 23 are respectively matched with the third opening 23 and the cross rod 102, and a plane formed by the axis of the feeding port (2) and the axis of the water inlet (3) is parallel to the axis of the transmission rod (211).
Principle of operation
The slurry and the water fall on the blades of the waterwheel pieces 212 to drive the waterwheel pieces 212 to rotate, so that the gravitational potential energy of the falling objects is converted into the kinetic energy of the waterwheel pieces 212, and the bevel gear III 210 is driven to rotate; through the meshing connection of the third bevel gear 210 and the fourth bevel gear 209, the kinetic energy of the waterwheel blades 212 drives the funnel 5 to rotate, and the stirring blades 101 fixed on the funnel 5 are driven to stir and mix the slurry and the water.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws within the scope of the present invention.

Claims (8)

1. The utility model provides a directional rig thick liquid ware that mixes of non-excavation level, includes jar body (1), pan feeding mouth (2), water inlet (3), discharge gate (4), its characterized in that: the stirring device also comprises a funnel (5) which is connected with the inner wall of the tank body (1) and rotates relative to the tank body (1), a stirring component (10) which is positioned in the tank body (1), and a driving component (20) which drives the stirring component (10) and the funnel (5) to rotate; wherein the feeding port (2) and the water inlet (3) are arranged above the funnel (5), and the discharging port (4) is arranged below the funnel (5).
2. The trenchless horizontal directional drilling machine slurry blender of claim 1, wherein: a first chute (14) for the funnel (5) to rotate along the rotation center is arranged in the tank body (1); the stirring assembly (10) comprises a cross rod (102) transversely arranged in the tank body (1) and a stirring sheet (101) arranged on the cross rod (102); the driving assembly (20) comprises a motor (201) fixed on the outer wall of the tank body (1), a bevel gear I (202) fixed on a transmission shaft of the motor (201), a bevel gear II (203) fixed at one end of the cross rod (102), a gear ring (206) surrounding the outer edge of the funnel (5), an extension rod (204) fixedly connected with the transmission shaft of the motor (201), and a straight gear I (205) fixed at one end of the extension rod (204); the gear ring (206) is fixed on the hopper (5) and is in rotating connection with the chute I (14), and the bevel gear I (202) is in meshing connection with the bevel gear II (203); the gear ring (206) is in meshed connection with the first straight gear (205).
3. The trenchless horizontal directional drilling machine slurry blender of claim 1, wherein: a first chute (14) for the funnel (5) to rotate along the rotation center is arranged in the tank body (1); the stirring assembly (10) comprises a stirring sheet (101) fixed on the upper surface of the funnel (5); the driving assembly (20) comprises a motor (201) fixed on the outer wall of the tank body (1), a spur gear II (208) connected with a transmission shaft of the motor (201), and a gear ring (206) surrounding the outer edge of the funnel (5); wherein the gear ring (206) is fixed on the hopper (5) and is rotationally connected with the first sliding chute (14); the gear ring (206) is in meshed connection with the second spur gear (208).
4. The trenchless horizontal directional drilling machine slurry blender of claim 1, wherein: a first chute (14) for the funnel (5) to rotate along the rotation center is arranged in the tank body (1); the stirring assembly (10) comprises a stirring sheet (101) fixed on the upper surface of the funnel (5); the driving assembly (20) comprises a waterwheel piece (212) positioned below the feeding port (2) and the water inlet (3), a transmission rod (211) serving as a rotation center of the waterwheel piece (212), a bevel gear III (210) connected with one end of the transmission rod (211), and a bevel gear IV (209) surrounding the outer edge of the funnel (5); the bevel gear IV (209) is fixed on the funnel (5) and is rotationally connected with the chute I (14); the bevel gear IV (209) is in meshed connection with the bevel gear III (210); wherein the plane formed by the axis of the feeding port (2) and the axis of the water inlet (3) is parallel to the axis of the transmission rod (211).
5. The trenchless horizontal directional drilling machine blender of claim 3 or 4, wherein: the internal well core rod (51) of being equipped with a fixed connection in funnel (5) of jar, the axis of well core rod (51) and the center of rotation coincidence of funnel (5), well core rod (51) and jar body (1) inner wall rotate to be connected.
6. The trenchless horizontal directional drilling machine slurry blender of claim 5, wherein: and a roller (15) which is in rolling connection with the funnel (5) is arranged in the first sliding groove (14).
7. The trenchless horizontal directional drilling machine slurry blender of claim 6, wherein: the tank body (1) is internally provided with an inclined bottom (17) at the lowest part close to the discharge hole (4), a falling opening (13) at the lowest part of the inclined bottom (17) and communicated with the outside of the tank body (1), and a sealing cover (12) for opening and closing the falling opening (13).
8. The trenchless horizontal directional drilling machine slurry blender of claim 7, wherein: and a second sliding groove (16) for the sliding of the sealing cover (12) is arranged on the tank body (1).
CN201920724815.2U 2019-05-15 2019-05-15 Slurry mixer of trenchless horizontal directional drilling machine Active CN210097441U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920724815.2U CN210097441U (en) 2019-05-15 2019-05-15 Slurry mixer of trenchless horizontal directional drilling machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920724815.2U CN210097441U (en) 2019-05-15 2019-05-15 Slurry mixer of trenchless horizontal directional drilling machine

Publications (1)

Publication Number Publication Date
CN210097441U true CN210097441U (en) 2020-02-21

Family

ID=69540639

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920724815.2U Active CN210097441U (en) 2019-05-15 2019-05-15 Slurry mixer of trenchless horizontal directional drilling machine

Country Status (1)

Country Link
CN (1) CN210097441U (en)

Similar Documents

Publication Publication Date Title
CN105793494A (en) Pile mixing machine transmission
CN201883428U (en) Bidirectional mixing boring tool for mixing pile machine
CN107599173A (en) A kind of agitating device
CN106284328A (en) Energy-conservation strength self-reaction force multidirectional cement mixing method drilling tool
CN210598981U (en) Large-caliber long-distance reinforced concrete pipe slurry balance jacking pipe construction device
KR101187582B1 (en) Auger device equiped with excavating rod and casing rod having same turning direction and different speed
CN210097441U (en) Slurry mixer of trenchless horizontal directional drilling machine
CN113404428A (en) Stirring stake construction equipment of two-way stirring
CN112569832A (en) Slurry mixer for foundation and foundation engineering
CN112476785A (en) Slurry mixer for foundation and foundation engineering and mixing method
CN209261474U (en) Cylinder bores and rotary drilling rig
CN201650102U (en) Drilling mechanism of compound rotary drilling rig
CN201137157Y (en) Deep layer agitation boring machine
CN2230777Y (en) Drill for screw extruding filling pills
CN206143764U (en) Multidirectional cement mixing method drilling tool of energy -conserving powerful self -reaction force
CN206829145U (en) Deep Foundation Pit Excavation vertical-lift goes out indigenous equipment
CN215210438U (en) Marking equipment for excavating large-area earthwork in city
CN114956493A (en) Drilling bored concrete pile mud solidification separator
CN208563419U (en) A kind of set digging device
CN209457882U (en) A kind of augers automatic braking device
CN107653880B (en) Threaded post concrete stake machine
KR100512095B1 (en) Excavator bit using UCM method
CN211898318U (en) Soft soil foundation treatment device
CN212215411U (en) Non-excavation rig slurrying station
CN205713988U (en) A kind of efficient rotary digs rock drill bit

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant