CN220394574U

CN220394574U - Hole guiding pipe

Info

Publication number: CN220394574U
Application number: CN202322210718.0U
Authority: CN
Inventors: 刘勇; 周建林; 韩永亮; 张士龙; 王海成; 陆杰; 田汉卿; 刘明哲
Original assignee: ZHONGJI DEVELOPMENT CONSTRUCTION ENGINEERING CO LTD
Current assignee: ZHONGJI DEVELOPMENT CONSTRUCTION ENGINEERING CO LTD
Priority date: 2023-08-16
Filing date: 2023-08-16
Publication date: 2024-01-26
Anticipated expiration: 2033-08-16

Abstract

The application discloses draw hole pipe relates to the technical field of foundation ditch support for supply the body that the sleeve pipe worn to establish, the body inner wall is formed with coaxial spacing ring, sliding connection has the sealing member in the body, the sealing member is used for supporting tight spacing ring and sleeve pipe outer wall simultaneously. The wall back cavity and ground subsidence condition effect has the advantages that loss of the wall back soil body along with the water body between the sleeve and the hole guiding pipe is reduced.

Description

Hole guiding pipe

Technical Field

The application relates to the technical field of foundation pit support, in particular to a hole guiding pipe.

Background

For high underground water level and complex geological conditions, anchor rod support is often used in deep foundation pit support, but when the sand and pebble stratum with high underground water level is constructed, the problems of water burst, sand burst, hole collapse and the like often exist, so that the difficulty of hole forming is high, water and soil loss of anchor rod holes are caused, the surrounding stratum is caused to sink, and the safety of the foundation pit and surrounding building (construction) is influenced.

The construction of the general anchor rod by a sleeve drill can pre-embed a hole guiding pipe in a steel reinforcement cage of the continuous wall. The wall back soil in the high water level area can run off from the sleeve and the hole guiding pipe under the action of water flow, so that wall back holes can be formed, even the ground is excessively lowered deeply, the construction period is prolonged, and the overall construction efficiency is reduced.

Disclosure of Invention

In order to reduce the situation that the wall back cavity and the ground subside due to the fact that the soil body on the wall back runs away along with the water body from between the sleeve pipe and the hole guiding pipe, the application provides the hole guiding pipe.

The application provides a draw hole pipe, adopts following technical scheme: comprising the following steps: the pipe body is used for being penetrated by the sleeve, a coaxial abutting ring is formed on the inner wall of the pipe body, a sealing piece is connected in the pipe body in a sliding mode, and the sealing piece is used for abutting against the abutting ring and the outer wall of the sleeve at the same time.

Through adopting above-mentioned technical scheme, establish the sealing member cover on the sleeve pipe outer wall, when the sleeve pipe is transferred to the draw hole pipe in, the sleeve pipe passes the spacing ring, and the sealing ring supports tightly with the spacing ring, sleeve pipe outer wall supports tightly with the spacing ring inner wall simultaneously to seal the passageway between draw hole pipe and the sleeve pipe, when reducing the transfer sleeve pipe, the phenomenon that the back of the wall soil body runs off along with the water from between sleeve pipe and the draw hole pipe.

Optionally, including fixed connection's gland and compression sleeve, compression sleeve wears to locate the body, gland and body detachable connection, works as when gland and body connection, compression sleeve can press from both sides tight sealing member with the spacing ring jointly.

Through adopting above-mentioned technical scheme, locate gland, gland sleeve and sealing member cover in proper order on the sleeve pipe outer wall, when down the sleeve pipe to downthehole draw, gland and body butt, gland one end and spacing ring are kept away from to the gland sleeve and are supported tightly with the sealing ring jointly to improve the sealed effect of sealing member, and reduce the dirt that gets into the sealing member along downthehole wall of drawing.

Optionally, be provided with the clamp ring between clamp sleeve and the sealing member, the clamp ring can simultaneously with clamp sleeve and sealing member butt.

Through adopting above-mentioned technical scheme, compress tightly the sleeve and pass through clamp ring and sealing member butt, increase the area of contact between clamp sleeve and the sealing ring to reduce the sealing ring and because of the deformation that stress distribution uneven takes place, thereby prolong the life of sealing ring.

Optionally, the body includes body and lower body, the internal diameter of going up the body is greater than the internal diameter of body down, it is connected with the spacing ring to go up the body, lower body is close to and goes up body one end and be connected with the spacing ring.

Through adopting above-mentioned technical scheme, form the spacing ring of step form in junction when the upper and lower body connection of internal diameter difference for the sealing member can with spacing ring butt, thereby be convenient for the location of sealing member in the draw hole pipe.

Optionally, the pipe body further comprises a flange fixed on one end of the upper pipe body far away from the limiting ring, and the gland is detachably connected with the flange.

By adopting the technical scheme, the flange is a standard component, so that the preparation and management of spare parts are facilitated.

Optionally, threaded connection has the actuating lever on the compression sleeve, actuating lever keeps away from gland one end and is connected with the clamp ring rotation.

Through adopting above-mentioned technical scheme, threaded connection has the actuating lever on the compression sleeve so that the rotation of actuating lever changes the removal of clamp ring along actuating lever axis of rotation direction into. When the number of the sealing elements is increased, the driving rod is rotated to enable the compression ring to move towards the direction approaching to the sealing elements; when the number of sealing pieces is reduced, the driving rod is reversely rotated to enable the compression ring to move away from the sealing pieces, so that the hole guiding pipe can be applied to the condition that the number of the sealing pieces is different, the types of spare parts of the hole guiding pipe are reduced, and the management cost of the spare parts of the hole guiding pipe is reduced.

Optionally, one end of the driving rod far away from the compression ring penetrates out from one end of the gland.

Through adopting above-mentioned technical scheme, the draw hole pipe is worn out from the gland to the holding ring one end is kept away from to the actuating lever for operating personnel can rotate the actuating lever.

Optionally, a knob is fixedly connected with one end of the driving rod penetrating out of the gland.

Through adopting above-mentioned technical scheme, operating personnel can hold the knob and rotate the actuating lever to the operating personnel of being convenient for rotates the actuating lever.

Optionally, the seal comprises one or more oil seals.

By adopting the technical scheme, the oil seal is a standard component, so that the management of spare parts is facilitated; the number of the oil seals is changed according to the working environment, so that the tightness of the pipe body is improved.

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

1. the sealing piece is sleeved on the outer wall of the sleeve, when the sleeve is lowered into the guiding hole pipe, the sleeve passes through the limiting ring, the sealing ring is abutted against the limiting ring, and meanwhile, the outer wall of the sleeve is abutted against the inner wall of the limiting ring, so that a channel between the guiding hole pipe and the sleeve is sealed, and the phenomenon that soil body on the back of the wall runs off along with water from the sleeve to the guiding hole pipe when the sleeve is lowered is reduced;

2. the gland, the gland sleeve and the sealing piece are sleeved on the outer wall of the sleeve in sequence, when the sleeve is put down into the guide hole pipe, the gland is abutted with the pipe body, and one end, far away from the gland, of the gland sleeve is abutted against the sealing ring together with the limiting ring, so that the sealing effect of the sealing piece is improved, and dirt entering the sealing piece along the inner wall of the guide hole pipe is reduced;

3. the compression sleeve is abutted with the sealing piece through the compression ring, so that the contact area between the compression sleeve and the sealing ring is increased, the deformation of the sealing ring caused by uneven stress distribution is reduced, and the service life of the sealing ring is prolonged;

4. the step is formed at the joint when the upper pipe body and the lower pipe body with different inner diameters are connected, so that the sealing element can be abutted with the step, and the positioning of the sealing element in the hole guiding pipe is facilitated.

Drawings

FIG. 1 is a schematic overall structure of a first embodiment of the present application;

FIG. 2 is a schematic cross-sectional view for showing the internal structure of the hole guiding tube according to the first embodiment of the present application;

FIG. 3 is a schematic overall structure of a second embodiment of the present application;

fig. 4 is a schematic sectional view for showing the internal structure of the hole guiding tube according to the second embodiment of the present application.

Reference numerals illustrate: 1. a tube body; 11. an upper tube body; 12. a lower pipe body; 2. a limiting ring; 3. a seal; 4. a gland; 5. compressing the sleeve; 6. a clamp ring; 7. a flange; 8. a driving rod; 9. a knob; 10. a guide rod.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-4.

The construction process of the anchor bolt support comprises the steps of lowering a reinforcement cage in a foundation pit, pouring a continuous wall through the reinforcement cage, drilling holes in the outer wall of the continuous wall by using an anchor bolt drilling machine, driving a sleeve and an anchor bolt into the continuous wall, and inserting the sleeve and the anchor bolt into a soil layer after penetrating through the continuous wall.

Embodiment one:

the embodiment of the application discloses a draw hole pipe, refer to fig. 1 and 2, draw hole pipe includes body 1, and body 1 includes integrated into one piece's last body 11, down body 12 and spacing ring 2, goes up body 11 and down body 12 and be cylindric, and goes up body 11 and keep away from down body 12 a terminal surface slope in being close to down body 12 a terminal surface, goes up body 11's internal diameter and is greater than down body 12. One end of the limiting ring 2 is fixedly connected with the lower pipe body 12 through welding, and the other end of the limiting ring is fixedly connected with the upper pipe body 11 through welding, so that the upper pipe body 11, the lower pipe body 12 and the limiting ring 2 are coaxial, and one ends, close to each other, of the upper pipe body 11 and the lower pipe body 12 are communicated.

Referring to fig. 1, the upper pipe body 11 and the lower pipe body 12 are fixedly connected with the reinforcement cage through welding, and one end surface of the upper pipe body 11, which is far away from the limiting ring 2, is close to the outer wall of the continuous wall and is parallel to the outer wall of the continuous wall.

Referring to fig. 2, a sealing element 3 is connected in the upper pipe body 11 in a sliding fit manner, and one end surface of the sealing element 3, which is close to the limiting ring 2, can be abutted against the limiting ring 2. The seal 3 comprises one or more oil seals, in this application the seal 3 is a skeleton type oil seal and is provided with five.

When the sleeve is lowered, the sealing element 3 enters the upper pipe body 11 along with the sleeve and is abutted with the end face of the limiting ring 2, so that a gap between the lower pipe body 12 and the sleeve is closed, and the water body carrying soil and flowing out from the gap between the lower pipe body 12 and the sleeve is reduced.

Referring to fig. 2, a flange 7 is fixed at one end of the upper pipe body 11 far from the limiting ring 2, and the end face of the flange 7 is parallel to the end face of the upper pipe body 11 far from the limiting ring 2. The flange 7 is kept away from spacing ring 2 a terminal surface and can is dismantled through the screw thread and be connected with gland 4, and gland 4 is close to flange 7 one end integrated into one piece and has to compress tightly sleeve 5, and the external diameter of compressing tightly sleeve 5 is less than the internal diameter of last body 11, goes up the inside sliding connection of body 11 and has the clamp ring 6, and when gland 4 can dismantle through the bolt with flange 7 and be connected, in compressing tightly sleeve 5 inserts the body 11, and compressing tightly sleeve 5 keeps away from gland 4 one end and supports and compress tightly clamp ring 6 for clamp ring 6 compresses tightly sealing member 3 jointly with spacing ring 2.

When the sleeve is lowered, the compression sleeve 5, the compression ring 6 and the sealing elements 3 move along the axial direction of the upper pipe body 11 along with the sleeve to be close to the limiting ring 2, so that the end face of the gland 4 is abutted with the end face of the flange 7, one end face of the compression sleeve 5, far from the gland 4, is abutted with the end face of the sealing element 3, the end face of the sealing element 3 is abutted with the end face of the limiting ring 2, then an operator adjusts the position of the gland 4, and the gland 4 is connected with the flange 7 through screw threads, so that the positions of the compression sleeve 5, the compression ring 6 and the sealing elements 3 are fixed, the compression ring 6 and the limiting ring 2 are enabled to jointly compress the sealing elements 3, a gap between the lower pipe body 12 and the sleeve is closed, water flowing out from the gap between the lower pipe body 12 and the sleeve is reduced, and water and soil loss of soil after the wall is reduced; the compression sleeve 5 compresses the sealing element 3 through the compression ring 6, so that the stress to which the sealing element 3 is subjected is reduced, the deformation of the sealing element 3 is reduced, and the service life of the sealing element 3 is prolonged.

In other embodiments of the present application, the number of oil seals is set by the sealing member 3 according to the requirements of the construction site, and the compression sleeve 5 is set or selected to have different length specifications according to the number of oil seals included by the sealing member 3.

The implementation principle of the hole guiding pipe in the embodiment of the application is as follows: the compaction sleeve 5, the compaction ring 6 and the sealing element 3 are sleeved on the outer wall of the sleeve, when the sleeve is put down, the compaction sleeve 5, the compaction ring 6 and the sealing element 3 move to close the gap between the lower pipe body 12 and the sleeve along with the sleeve, so that the water flowing out of the gap is reduced, and the loss of the wall body along with the water from the sleeve and the hole guiding pipe is reduced, so that the wall cavity and the ground subside.

Embodiment two:

referring to fig. 3 and 4, the difference between the embodiment of the present application and other embodiments is that the sealing member 3 includes three oil seals, a driving rod 8 and a guiding rod 10 are penetrated inside the side wall of the compression sleeve 5, the driving rod 8 is in threaded connection with the compression sleeve 5, one end of the driving rod 8 penetrates out of the gland 4 and is fixedly connected with a knob 9 by welding, and the other end penetrates out of one end surface of the compression sleeve 5 far away from the gland 4 and is in rotational connection with the compression ring 6; the guide rod 10 is in sliding connection with the compression sleeve 5, one end of the guide rod 10 penetrates out of the gland 4, and the other end penetrates out of one end face, far away from the gland 4, of the compression sleeve 5 and is fixedly connected with the compression ring 6.

The implementation principle of the hole guiding pipe in the embodiment of the application is as follows: the operator rotates the knob 9, the knob 9 drives the driving rod 8 to rotate, and the driving rod 8 moves along the axial direction of the compression sleeve 5, the driving rod 8 drives the compression ring 6 to move along the axial direction of the compression sleeve 5, so that when the gland 4 is connected with the flange 7, the vertical distance between the compression ring 6 and the limiting ring 2 is adjusted, the pilot hole pipe does not need to produce compression sleeves 5 with different lengths, sealing elements 3 comprising different numbers of oil seals can be adapted, the spare part types of the pilot hole pipe are reduced, the spare part management cost is reduced, when the sealing elements 3 comprise more oil seals, the knob 9 is rotated to enable the compression ring 6 to move towards the direction close to the gland 4, and when the sealing elements 3 comprise fewer oil seals, the knob 9 is rotated to enable the compression ring 6 to move towards the direction far away from the gland 4; the guide rod 10 makes the clamp ring 6 not easy to rotate along with the drive rod 8 when the drive rod 8 rotates, and improves the stability of the clamp ring 6 when moving.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A draw hole pipe which is characterized in that: comprising the following steps: the pipe body (1) is used for the sleeve to penetrate, a coaxial limiting ring (2) is formed on the inner wall of the pipe body (1), a sealing piece (3) is connected in a sliding mode in the pipe body (1), and the sealing piece (3) is used for simultaneously propping against the limiting ring (2) and the outer wall of the sleeve; the sealing device comprises a gland (4) and a compression sleeve (5) which are fixedly connected, wherein the compression sleeve (5) penetrates through a pipe body (1), the gland (4) is detachably connected with the pipe body (1), and when the gland (4) is connected with the pipe body (1), the compression sleeve (5) can clamp a sealing element (3) together with a limiting ring (2); a compression ring (6) is arranged between the compression sleeve (5) and the sealing piece (3), and the compression ring (6) can be simultaneously abutted with the compression sleeve (5) and the sealing piece (3); the compression sleeve (5) is in threaded connection with a driving rod (8), and one end, far away from the gland (4), of the driving rod (8) is in rotary connection with the compression ring (6); one end of the driving rod (8) far away from the compression ring (6) penetrates out of one end of the gland (4).

2. A pilot hole pipe according to claim 1, characterized in that: the pipe body (1) comprises an upper pipe body (11) and a lower pipe body (12), wherein the inner diameter of the upper pipe body (11) is larger than that of the lower pipe body (12), the upper pipe body (11) is connected with the limiting ring (2), and one end, close to the upper pipe body (11), of the lower pipe body (12) is connected with the limiting ring (2).

3. A pilot hole pipe according to claim 2, characterized in that: the pipe body (1) further comprises a flange (7) fixed at one end, far away from the limiting ring (2), of the upper pipe body (11), and the gland (4) is detachably connected with the flange (7).

4. A pilot hole pipe according to claim 1, characterized in that: one end of the driving rod (8) penetrating out of the gland (4) is fixedly connected with a knob (9).

5. A pilot hole pipe according to claim 1, characterized in that: the seal (3) comprises one or more oil seals.