CN215979222U

CN215979222U - Drill bit connector of underwater anchor cable drill rod

Info

Publication number: CN215979222U
Application number: CN202121770903.XU
Authority: CN
Inventors: 叶锋; 宗文光; 蒋瑞泳; 宗朔; 贾雷; 钱同月; 费飞
Original assignee: Beijing G&m Engineering Construction Co ltd
Current assignee: Beijing G&m Engineering Construction Co ltd
Priority date: 2021-07-15
Filing date: 2021-07-30
Publication date: 2022-03-08
Anticipated expiration: 2031-07-30

Abstract

The utility model relates to an underwater anchor rope drill rod drill bit connector, belong to the technical field of anchor rope construction under water, it includes the connector, the connector is the tubulose, connector one end is deepened inside the drilling rod and can be dismantled with the drilling rod inner wall and be connected, the other end and drill bit fixed connection, the diameter that the connector is located drilling rod outside region equals the sleeve pipe internal diameter, the husky groove of crossing has been seted up on the connector outer wall, it is located the connector and is located the region outside the drilling rod to cross husky groove, it is close to drilling rod one end and opens with the external world to cross husky groove, fine sand and the reverse volume of underground water in this application has the control, the effect of the construction of being convenient for drilling.

Description

Drill bit connector of underwater anchor cable drill rod

Technical Field

The application relates to the technical field of underwater anchor cable construction, in particular to a drill bit connector of an underwater anchor cable.

Background

Along with the development of urban infrastructure, foundation pit engineering is deeper and deeper, and the scale is larger and larger, and the anchor rod is generally adopted as an effective supporting means in the deep foundation pit engineering.

In the foundation ditch work progress, it is abundant to the aquifer, the bottom of water level on the high side, if precipitation effect is not good, groundwater can be great to the foundation ditch influence. Usually, a diaphragm wall is arranged before a foundation pit is excavated, and the diaphragm wall, also called underground diaphragm wall, is a long and narrow deep groove excavated on the ground by adopting a grooving machine in foundation engineering under the condition of slurry wall protection along the peripheral axis of the deep excavation engineering. After the groove is cleaned, a reinforcement cage is hoisted in the groove, and then underwater concrete is poured by a guide pipe method to form a unit groove section. The construction is carried out section by section, and a continuous reinforced concrete wall is built underground and serves as a water interception, seepage prevention, bearing and water retaining structure.

The method has the advantages that the supporting effect on the foundation pit is achieved through the continuous wall and the anchor cable engineering, in the anchor cable construction process, a full-casing-pipe follow-up drilling mode is adopted, medium and fine sand in the stratum is flushed out in a back flushing mode, water flushed out by a drill pipe is flushed back to a gap between the drill pipe and the casing pipe, and finally the medium and fine sand is discharged.

In view of the above-mentioned related technologies, the inventor believes that when the water inlet pressure of the drill pipe is constant, the defects that the amount of medium and fine sand and groundwater reflexes cannot be controlled exist.

SUMMERY OF THE UTILITY MODEL

In order when the pressure of intaking is constant, fine sand and the reverse volume of groundwater in reaching the control, the drilling construction's of being convenient for effect, this application provides an underwater anchor cable drilling rod drill bit connector.

The application provides a pair of underwater anchor cable drill rod drill bit connector adopts following technical scheme:

the utility model provides an underwater anchor rope drill rod drill bit connector, includes the connector, and the connector is the tubulose, and connector one end is deepened inside the drilling rod and can be dismantled with the drilling rod inner wall and be connected, the other end and drill bit fixed connection, and the diameter that the connector is located the drilling rod outside region equals the sleeve pipe internal diameter, has seted up husky groove on the connector outer wall, crosses husky groove and is located the connector and is located the region outside the drilling rod, crosses husky groove and is close to drilling rod one end and open with the external world.

Through adopting above-mentioned technical scheme, pipy connector is in order to cooperate with the sleeve pipe, outwards pull the drilling rod, the drilling rod pulls the connector to being close to the sleeve pipe direction, because the diameter that the connector is located the region outside the drilling rod is the same with the sheathed tube internal diameter, so final connector cooperation drilling rod can carry out the shutoff with the sleeve pipe, during the shutoff, no matter what the orientation of seting up of crossing the husky groove was towards, at the in-process of pulling the drilling rod, it exposes and is a process that reduces all the time at the outside part of sleeve pipe to cross the husky groove, well fine sand and groundwater flow into the sleeve pipe through crossing the husky groove, and the circulation path of well fine sand and groundwater is diminishing, thereby fine sand and groundwater reflection volume in reaching the control, be convenient for the effect of drilling construction.

Optionally, the connector includes a first region, a second region and a third region, the first region is located in the drill rod and detachably connected to the inner wall of the drill rod, the outer diameter of the third region is equal to the inner diameter of the casing, one end of the second region is fixedly connected to the first region, the other end of the second region is fixedly connected to the third region, and the outer wall of the second region is obliquely arranged in a direction close to the third region; the sand passing groove is positioned on the third area and is close to one end of the drill rod to open the second area.

Through adopting above-mentioned technical scheme, the second region slope sets up, because the whole tubulose that is of connector, so the second region that the slope set up plays the guide effect when only the cover pipe is accomodate to the connector.

Optionally, one end of the casing close to the connector is detachably connected with a casing bit, the casing bit is tubular, one end of the casing bit extends into the casing and is detachably connected with the inner wall of the casing, the other end of the casing bit is located outside the casing, and the outer diameter of the exposed area of the casing bit is the same as the outer diameter of the casing; the outer wall of the third area is abutted against the inner wall of the casing bit.

Through adopting above-mentioned technical scheme, the impact and the friction that the casing bit replaces the sleeve pipe to bear the connector play the guard action to the sleeve pipe, prolong sleeve pipe reuse's number of times.

Optionally, the inner wall of the end of the casing bit, which is far away from the connector, is chamfered.

Through adopting above-mentioned technical scheme, according to the construction order, earlier with casing bit and sleeve pipe end connection, during the drilling rod that later will install connector and drill bit penetrated the sleeve pipe, the casing bit kept away from connector one end inner wall chamfer setting and runs through the sleeve pipe to the drilling rod and play the guide effect.

Optionally, an annular groove for inserting a drill bit is formed in the inner wall of the connector, the annular groove is located at one end, away from the drill rod, of the connector, and the end, away from the drill rod, of the annular groove is used for penetrating the end face of the connector.

Through adopting above-mentioned technical scheme, offering of annular is for inserting of drill bit to inlay fixedly provides the space, and chooses for use earlier to insert and inlay the fixed mode in back, has promoted the stability after the drill bit is fixed and has still saved the space.

Optionally, the inside locating plate that is provided with of connector, locating plate circumference lateral wall and annular cell wall butt, locating plate one side and the cell wall butt that the annular deviates from the drilling rod, opposite side and drill bit butt have seted up the hole on the locating plate, and the hole runs through the locating plate along connector length direction.

Through adopting above-mentioned technical scheme, the setting of locating plate can adapt to the drill bit of inserting the inside different length of connector, has promoted the application range of connector.

Optionally, the casing drill bit penetrates into one end of the casing to be in threaded connection with the casing, a plurality of casings are adopted in drilling construction, and adjacent casings are also in threaded connection in splicing mode.

Through adopting above-mentioned technical scheme, select for use threaded connection's mode, the concatenation means that adapts to sleeve pipe itself, when the casing bit installation, no matter select for use that sleeve pipe all can realize threaded connection, the operation is convenient.

Optionally, the sand passing groove is long, the length direction of the sand passing groove is arranged along the length direction of the drill rod, the sand passing grooves are arranged in a plurality of numbers, and the adjacent sand passing grooves are arranged at equal intervals along the circumferential direction of the outer wall of the connector.

By adopting the technical scheme, the back washing efficiency is improved by arranging the sand passing grooves, meanwhile, the sand passing grooves are arranged along the length direction of the drill rod in the length direction, and the positions of the sand passing grooves are controlled to better control the space in which fine sand can pass through the sand passing grooves.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the connectors and the sand passing grooves are arranged, so that the effects of controlling the reverse amount of medium fine sand and underground water and facilitating drilling construction are achieved;

2. the setting of casing bit cooperates the connector, protects the sleeve pipe simultaneously, reduces sheathed tube wearing and tearing, extension sleeve pipe reuse's number of times.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

FIG. 2 is a sectional view of the internal structure of the embodiment of the present application;

fig. 3 is a sectional view showing a part of the structure at the accommodation groove.

In the figure, 1, connector; 11. a first region; 12. a second region; 13. a third region; 131. a ring groove; 132. a sand passing groove; 2. a casing bit; 3. positioning a plate; 4. a drill bit can be lost; 41. a bit body; 411. a sealing groove; 412. a seal ring; 42. a drill wing plate; 421. pressing a plate; 43. a mandrel; 431. a first channel; 432. a second channel; 433. a third channel; 434. accommodating grooves; 435. a bolt; 5. steel balls; 51. a spring; 52. a short pipe; 6. a drill stem; 7. a sleeve.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses submarine anchor rope drilling rod drill bit connector.

Referring to fig. 1, an underwater anchor cable drill rod drill bit connector includes casing bit 2 and connector 1, and casing bit 2 is the pipe form, and casing bit 2 and sleeve pipe 7 go deep into one end fixed connection in the stratum, 1 one end of connector and drilling rod 6 fixed connection, the other end and drill bit fixed connection, connector 1 and casing bit 2 cooperation use for the back-out volume in the clearance between fine sand and groundwater from sleeve pipe 7 and drilling rod 6 in the control, reach the effect of the construction of being convenient for drilling.

Referring to fig. 2, one end of the casing bit 2 extends into the casing 7 and is threadedly coupled to the inner wall of the casing 7, and the outer diameter of the exposed portion of the casing bit 2 is the same as the outer diameter of the casing 7. The inner wall of the casing bit 2 extending into the interior of the casing 7 is chamfered so that the drill rod 6 can penetrate through the casing bit 2.

Referring to fig. 1 and 2, the drill bit in this embodiment is a disposable drill bit 4, the disposable drill bit 4 includes a bit body 41, a bit wing 42 and a mandrel 43, the bit body 41 is in a tubular shape, a connector 1 is arranged between the bit body 41 and a drill rod 6, the connector 1 is in a tubular shape, the connector 1 is divided into three parts, including a first region 11, a second region 12 and a third region 13, the first region 11 is located in the drill rod 6 and is in threaded connection with the inner wall of the drill rod 6, the outer diameter of the third region 13 is equal to the inner diameter of a casing drill bit 2, one end of the second region 12 extends into the first region 11 and is in threaded connection with the inner wall of the first region 11, and the other end of the second region 12 is fixedly connected with the third region 13, that is, the outer wall of the second region 12 is obliquely arranged in a direction close to the third region 13; seted up on the outer wall of connector 1 and crossed husky groove 132, crossed husky groove 132 and seted up along connector 1 length direction, crossed husky groove 132 and be located third region 13 and be close to drilling rod 6 one end and open second region 12 thoroughly, crossed husky groove 132 in this embodiment and seted up threely, adjacent cross husky groove 132 and set up along connector 1 circumference outer wall equidistance to be convenient for control the reflection volume of fine sand and groundwater.

Referring to fig. 2 and 3, the connector 1 is provided with a ring groove 131, and the ring groove 131 is formed along the inner wall of the connector 1. Along connector 1 length direction, the annular groove 131 is kept away from sleeve pipe 7 one end and is opened the terminal surface that the connector 1 kept away from sleeve pipe 7, and dabber 43 one end is inserted and is inlayed in annular groove 131, and the other end is located connector 1 outside. A first channel 431, a second channel 432 and a third channel 433 are formed in the mandrel 43, and the first channel 431, the second channel 432 and the third channel 433 are communicated end to enable the mandrel 43 to penetrate through along the length direction of the connector 1. Holding tank 434 has been seted up on the dabber 43 outer wall, and a week is seted up along dabber 43 outer wall to holding tank 434, and 1 one end and drill bit pterygoid lamina 42 fixed connection are kept away from to connector is kept away from to dabber 43, and the distance that holding tank 434 was seted up along 1 length direction of connector is greater than the distance of 1 tip of connector apart from drill bit pterygoid lamina 42.

Referring to fig. 2 and 3, the bit body 41 is annularly sleeved and fixed on the outer wall of the mandrel 43 and fills the receiving groove 434, the outer diameter of the region of the bit body 41 outside the connector 1 is the same as the inner diameter of the casing bit 2, the contact part of the bit body 41 and the connector 1 is in a butt state, a sealing groove 411 is formed in the outer wall of the bit body 41, the sealing groove 411 is formed in a circle along the outer wall of the bit body 41, the sealing groove 411 is located on the exposed region of the bit body 41, a sealing ring 412 is annularly sleeved and fixed on the bit body 41, and the outer diameter of the sealing ring 412 is larger than the outer diameter of the bit body 41.

Referring to fig. 2 and 3, a pressing plate 421 is embedded and fixed on the side wall of the drill wing plate 42 close to the drill body 41, the pressing plate 421 is used for reinforcing the strength of the drill wing plate 42, and the pressing plate 421 is fixedly connected with the drill body 41. The spindle 43 is provided with a bolt 435, one end of the bolt 435 is inserted and embedded in the spindle 43, the other end is inserted and embedded in the inner wall of the ring groove 131, and the bolt 435 is located in the area of the first channel 431 on the spindle 43. The provision of the latch 435 enables the securing of the spindle 43 to the connector 1. The diameter of the second channel 432 is smaller than the diameters of the first channel 431 and the third channel 433, a steel ball 5, a spring 51 and a short pipe 52 are arranged in the third channel 433 of the mandrel 43, the diameter of the steel ball 5 is larger than the diameter of the second channel 432 and smaller than the diameter of the third channel 433, the steel ball 5 abuts against the second channel 432 to plug the second channel 432, one side, away from the second channel 432, of the steel ball 5 is fixedly connected with one end of the spring 51, the other end of the spring 51 is fixedly connected with one end of the short pipe 52, the short pipe 52 is inserted into the third channel 433, the outer wall of the short pipe 52 abuts against the inner wall of the third channel 433, and one end, away from the spring 51, of the short pipe 52 is fixedly connected with the pressing plate 421. The pressing plate 421 is provided with a through hole, the through hole penetrates through the pressing plate 421 and simultaneously penetrates through the drill wing plate 42, namely the through hole, the third channel 433, the second channel 432, the first channel 431 and the drill rod 6 are communicated with each other, and the through hole, the third channel 433, the first channel 431 and the drill rod 6 are used for flushing medium fine sand during drilling. Wherein be provided with locating plate 3 in connector 1, locating plate 3 is located annular 131, 3 circumference lateral walls of locating plate and the butt of annular 131 inner wall, and locating plate 3 is supported tightly between annular 131 cell wall towards dabber 43 and dabber 43 tip, has seted up the hole on locating plate 3 to rivers spout from drill bit pterygoid lamina 42 when not influencing drilling

The implementation principle of the underwater anchor cable drill rod drill bit connector is as follows: when fine sand and groundwater reverse output volume in needs control, outwards pull drilling rod 6, drilling rod 6 drives connector 1 and outwards removes, makes connector 1 outer wall and casing bit 2 inner wall butt, and groundwater and well fine sand can only be reversed out through crossing husky groove 132 this moment, the how much of pulling out drilling rod 6 to control and cross the exposed how much of husky groove 132, carry out the circulation route of groundwater and well fine sand, fine sand and groundwater reverse output volume in reaching the control, the effect of the construction of being convenient for drilling.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an underwater anchor rope drilling rod drill bit connector which characterized in that: including connector (1), connector (1) is the tubulose, connector (1) one end is deepened drilling rod (6) inside and can be dismantled with drilling rod (6) inner wall and be connected, the other end and drill bit fixed connection, connector (1) is located drilling rod (6) outside area's diameter and equals sleeve pipe (7) internal diameter, cross husky groove (132) have been seted up on connector (1) outer wall, cross husky groove (132) and be located connector (1) and be located the region outside drilling rod (6), cross husky groove (132) and be close to drilling rod (6) one end and open with the external world.

2. A subsea cable drill bit connector as claimed in claim 1, wherein: the connector (1) comprises a first area (11), a second area (12) and a third area (13), wherein the first area (11) is positioned in the drill rod (6) and detachably connected with the inner wall of the drill rod (6), the outer diameter of the third area (13) is equal to the inner diameter of the casing (7), one end of the second area (12) is fixedly connected with the first area (11), the other end of the second area is fixedly connected with the third area (13), and the outer wall of the second area (12) is obliquely arranged in the direction close to the third area (13); the sand-passing groove (132) is positioned on the third area (13) and close to one end of the drill rod (6) to open the second area (12).

3. A subsea cable drill bit connector as claimed in claim 2, wherein: one end of the casing (7), which is close to the connector (1), is detachably connected with a casing drill bit (2), the casing drill bit (2) is tubular, one end of the casing drill bit (2) extends into the casing (7) and is detachably connected with the inner wall of the casing (7), the other end of the casing drill bit is positioned outside the casing (7), and the outer diameter of the exposed area of the casing drill bit (2) is the same as that of the casing (7); the outer wall of the third area (13) is abutted against the inner wall of the casing bit (2).

4. A subsea cable drill bit connector as claimed in claim 3, wherein: the inner wall of one end, far away from the connector (1), of the casing drill bit (2) is chamfered.

5. A subsea cable drill bit connector as claimed in claim 1, wherein: offer on connector (1) inner wall and be used for the drill bit to insert annular (131) that inlays, annular (131) are located connector (1) and keep away from drilling rod (6) one end, and drilling rod (6) one end is kept away from in annular (131) is opened the connector (1) terminal surface and is passed through.

6. An underwater cable drill pipe connector as defined in claim 5, wherein: connector (1) inside locating plate (3) that is provided with, locating plate (3) circumference lateral wall and annular (131) cell wall butt, locating plate (3) one side and annular (131) deviate from the cell wall butt of drilling rod (6), and the hole has been seted up with the drill bit butt on opposite side and the locating plate (3), and locating plate (3) is run through along connector (1) length direction in the hole.

7. A subsea cable drill bit connector as claimed in claim 3, wherein: the casing drill bit (2) penetrates into one end of the casing (7) to be in threaded connection with the casing (7), a plurality of casings (7) are adopted in drilling construction, and adjacent casings (7) are spliced to be in threaded connection.

8. A subsea cable drill bit connector as claimed in claim 2, wherein: the sand passing groove (132) is long, the length direction of the sand passing groove is arranged along the length direction of the drill rod (6), the sand passing grooves (132) are arranged in a plurality, and the adjacent sand passing grooves (132) are arranged along the circumferential direction of the outer wall of the connector (1) at equal intervals.