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CN-224214204-U - Auxiliary grouting device for continuous anchor rod insertion

CN224214204UCN 224214204 UCN224214204 UCN 224214204UCN-224214204-U

Abstract

The utility model provides a grouting auxiliary device for continuously inserting an anchor rod, which comprises a sleeve and a rock wall, wherein one end of the sleeve is provided with a guide sleeve, the sleeve comprises a grouting sleeve and an installation sleeve, an anchor hole is formed in the rock wall, the installation sleeve is abutted against the anchor hole, the grouting sleeve is rotationally connected with the installation sleeve, a plurality of centering ribs are arranged on the guide sleeve, and one side of the installation sleeve is provided with a baffle ring. When all the anchor rods extend into place, the grouting sleeve is rotated, so that the grouting sleeve rotates relative to the installation sleeve, the grouting sleeve is separated from the installation sleeve, and the baffle ring on the installation sleeve can prevent slurry from overflowing to a great extent. The device can be used for grouting before inserting the rod of the mortar anchor rod, reduces slurry overflow, improves grouting fullness, realizes centering installation and continuous installation of the mortar anchor rod, solves the problems of difficult centering and difficult rod inserting of grouting before inserting the rod, and has great popularization value.

Inventors

  • GUO GUANGWEN
  • HE WENTAO
  • SUN HAIMING
  • LAN GUOYUAN
  • ZHU PANYONG
  • LIU QIAN

Assignees

  • 中国葛洲坝集团股份有限公司

Dates

Publication Date
20260508
Application Date
20250528

Claims (8)

  1. 1. A grouting auxiliary device for continuously inserting anchor rods is characterized by comprising a sleeve (1) and a rock wall (12), wherein a guide sleeve (2) is arranged at one end of the sleeve (1), the sleeve (1) comprises a grouting sleeve (3) and an installation sleeve (8), anchor holes are formed in the rock wall (12), the installation sleeve (8) is abutted to the anchor holes, the grouting sleeve (3) is rotationally connected with the installation sleeve (8), a plurality of centering ribs (5) are arranged on the guide sleeve (2), and a baffle ring (804) is arranged on one side of the installation sleeve (8).
  2. 2. The continuous grouting auxiliary device for inserting anchor rods according to claim 1, wherein the grouting sleeve (3) comprises a sleeve body (301), a flat bottom hole (302) is formed in one end of the sleeve body (301), a swivel (303) is arranged at the other end of the sleeve body (301), and external threads (304) are formed on the swivel (303).
  3. 3. The continuous anchor rod inserting grouting auxiliary device according to claim 2, wherein the sleeve body (301) is provided with a feed port (305), the feed port (305) is provided with a grouting pipe (4), and the grouting liquid (11) is injected into the anchor hole from the grouting pipe (4).
  4. 4. The continuous anchor rod inserting grouting auxiliary device according to claim 1, wherein the mounting sleeve (8) comprises a ring sleeve (801), a ring groove (802) is formed in one end of the ring sleeve (801), an inner thread (803) is formed in the ring groove (802), and the inner thread (803) is connected with the outer thread (304).
  5. 5. The continuous anchor rod inserting grouting auxiliary device according to claim 1, wherein one end of the guide sleeve (2) is provided with a horn mouth (201), one end of the guide sleeve (2) is abutted against the upper inner wall of the flat bottom hole (302), and a sealing ring (6) is arranged between the guide sleeve (2) and the grouting sleeve (3).
  6. 6. The continuous anchoring-bolt-inserting grouting auxiliary device according to claim 1, wherein a plurality of centering ribs (5) are arrayed on the inner wall of the guide sleeve (2), the centering ribs (5) comprise supporting rods, and arc-shaped pieces are arranged on the supporting rods.
  7. 7. The auxiliary grouting device for continuously inserting anchor rods according to claim 6, wherein a plurality of second centering ribs (7) are arranged in an array on the inner wall of the mounting sleeve (8), and the second centering ribs (7) have the same structure as the centering ribs (5).
  8. 8. The continuous grouting auxiliary device for inserting anchor rods, as claimed in claim 1, is characterized in that a front anchor rod (9) is arranged on the mounting sleeve (8), and a rear anchor rod (10) is arranged at one end of the front anchor rod (9).

Description

Auxiliary grouting device for continuous anchor rod insertion Technical Field The utility model relates to the field of anchor rod grouting, in particular to a continuous anchor rod grouting auxiliary device. Background In the construction of tunnel engineering, side slope protection, underground or cavern support, can carry out a large amount of stock slip casting construction, the thick liquid fills the gap between stock and the ground body, forms the tight combination body, improves stock and the bonding strength of ground body by a wide margin to provide powerful anchoring force, effectively retrain ground body deformation, reinforcing structural stability. However, the existing grouting construction of the anchor rod adopts the mode of firstly inserting the rod and then grouting, the grouting is not filled, grouting slurry is easy to overflow during grouting, the anchor rod is easy to plug and warp during inserting the rod, and friction is carried out with an anchor hole during movement, so that the resistance of the anchor rod entering is large, and the operation of inserting the anchor rod becomes difficult. The constructor needs to consume more time and energy to push the anchor rods, even the construction time of a single anchor rod is greatly prolonged by forcibly inserting the anchor rods by means of additional mechanical equipment, and in addition, the anchor rods are difficult to center and the operation of inserting the anchor rods is discontinuous when being installed. For this purpose we propose a continuous bolt grouting auxiliary device for solving the above problems. Disclosure of utility model The utility model provides a grouting auxiliary device for continuously inserting an anchor rod, which solves the problems that grouting is not full, grout is easy to overflow when the anchor rod is inserted, the anchor rod is difficult to operate due to large insertion resistance when the anchor rod is inserted, more time and energy are required to push the anchor rod, the construction time is increased, and the centering is difficult when the anchor rod is installed. In order to solve the technical problems, the technical scheme is that the continuous anchor rod inserting grouting auxiliary device comprises a sleeve and a rock wall, wherein one end of the sleeve is provided with a guide sleeve, the sleeve comprises a grouting sleeve and an installation sleeve, an anchor hole is formed in the rock wall, the installation sleeve is abutted against the anchor hole, the grouting sleeve is rotationally connected with the installation sleeve, a plurality of centering ribs are arranged on the guide sleeve, and one side of the installation sleeve is provided with a baffle ring. In the preferred scheme, the slip casting cover includes the cover body, and cover body one end is equipped with flat bottom hole, and the cover body other end is equipped with the swivel, is equipped with the external screw thread on the swivel. In the preferred scheme, be equipped with the pan feeding mouth on the cover body, be equipped with the slip casting pipe on the pan feeding mouth, the thick liquid is poured into the anchor eye from the slip casting pipe. In the preferred scheme, the installation sleeve comprises a ring sleeve, one end of the ring sleeve is provided with a ring groove, and the ring groove is provided with internal threads which are connected with external threads. In the preferred scheme, uide bushing one end is equipped with the horn mouth, and uide bushing one end supports and leans on the upper inner wall of flat bottom hole, is equipped with the sealing ring between uide bushing and the slip casting cover. In the preferred scheme, a plurality of centering rib arrays are arranged on the inner wall of the guide sleeve, and the centering ribs comprise supporting rods, and arc-shaped sheets are arranged on the supporting rods. In a preferred embodiment, the inner wall of the mounting sleeve is provided with a plurality of second centering ribs arranged in an array, and the second centering ribs have the same structure as the centering ribs. In the preferred scheme, the installation is sheathe in and is equipped with preceding stock, and preceding stock one end is equipped with the back stock. When the anchor rod is required to be installed, the anchor hole is cleared, the installation sleeve is abutted against the anchor hole, the guide sleeve is installed on the flat bottom hole of the grouting sleeve, the sealing ring is installed between the guide sleeve and the grouting sleeve, the front anchor rod is inserted into the guide sleeve so as to enable the front anchor rod to be installed at the front end of the installation sleeve, grout is injected into the anchor hole through the grouting pipe, the front anchor rod is pushed into the anchor hole with the grout through the anchor rod motor, the front anchor rod is enabled to squeeze the grout, the grout is enabled to be tightly connected with the front a