CN218324915U

CN218324915U - Anchor rod assembly

Info

Publication number: CN218324915U
Application number: CN202222704552.3U
Authority: CN
Inventors: 王斌斌; 卓丐岭; 朱丐胜; 戴郑磊; 郑彩光; 谢同
Original assignee: Zhejiang Junyuan Landscape Co ltd
Current assignee: Zhejiang Junyuan Landscape Co ltd
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2023-01-17
Anticipated expiration: 2032-10-13

Abstract

The utility model belongs to the technical field of cave depot surrounding rock construction, in particular to an anchor rod assembly, which comprises a solid anchor rod body, an exhaust pipe and a grouting pipe, wherein the periphery of the solid anchor rod body is provided with an exhaust pipe limiting groove and a grouting pipe limiting groove which are arranged along the axial direction in an extending way, and the exhaust pipe and the grouting pipe are respectively arranged in the exhaust pipe limiting groove and the grouting pipe limiting groove; at least one limiting ring is fixed on the periphery of the solid full-length anchor rod body, the limiting ring has a limiting effect on the exhaust pipe and the grouting pipe which are positioned in the exhaust pipe limiting groove and the grouting pipe limiting groove, and a plurality of exhaust holes are distributed on the exhaust pipe along the axial direction. The utility model discloses an anchor rod adopts solid construction, establishes slip casting pipe and blast pipe in addition and spacing in solid anchor rod body of rod outer wall to carry on spacingly through the spacing ring, solid construction's stock intensity is higher, and through the blast pipe at slip casting in-process discharge gas, improve the closely knit degree of mud.

Description

Anchor rod assembly

Technical Field

The utility model belongs to the technical field of cave depot country rock construction, concretely relates to stock subassembly.

Background

In rock underground works, the surrounding rock mass, which undergoes a change in stress state due to excavation, is called the surrounding rock. The anchor bolt support is a reinforcing support mode adopted in surface engineering such as side slopes, rock-soil deep foundation pits and the like and underground chamber construction such as tunnels, stopes and the like. The method is characterized in that a pole column is usually made of metal pieces, wood pieces, polymer pieces or other materials, and is driven into a hole which is drilled in advance in an earth surface rock body or rock bodies around a chamber, and a special structure of a head part and a pole body and a tail supporting plate (which can be omitted) are utilized, or surrounding rocks and a stable rock body are combined together by depending on the bonding action to generate a suspension effect, a combination beam effect and a reinforcing effect, so that the aim of supporting is fulfilled.

At present, the construction method of the common grouting anchor rod is to firstly punch holes in the surrounding rock, then insert the anchor rod, inject slurry for solidification, and fix the anchor rod in the surrounding rock. The structure of the grouting anchor rod is generally a hollow anchor rod structure, the defect of poor dynamic pressure impact resistance is usually existed, the traditional grouting anchor rod has low strength, is easy to break, loses the support effectiveness, and has weak exhaust capacity and poor compactness after the injected slurry is solidified.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the shortcoming and not enough that prior art exists, and provide an anchor rod subassembly.

The utility model discloses the technical scheme who takes as follows: an anchor rod assembly comprises a solid anchor rod body, an exhaust pipe and a grouting pipe, wherein the periphery of the solid anchor rod body is provided with an exhaust pipe limiting groove and a grouting pipe limiting groove which extend along the axial direction, and the exhaust pipe and the grouting pipe are respectively arranged in the exhaust pipe limiting groove and the grouting pipe limiting groove; the solid anchor rod body periphery is fixed with at least one spacing ring, the spacing ring is to be located blast pipe spacing groove, slip casting pipe spacing inslot blast pipe, slip casting pipe formation limiting displacement, it has a plurality of exhaust holes to distribute along the axial on the blast pipe.

The solid stock body of rod is cylindric and the periphery is equipped with the external screw thread, the spacing ring is the ring form and its inner wall is equipped with the internal thread with solid stock body of rod external screw thread adaptation.

The solid stock body of rod periphery is fixed with two at least spacing rings, and wherein is equipped with the inflation fastener between two spacing rings and forms the spacing subassembly of inflation, the inflation fastener has contraction state and inflation state, can make the inflation fastener switch between contraction state and inflation state through adjusting the interval that constitutes two spacing rings of the spacing subassembly of inflation.

The expansion clamping piece comprises at least two V-shaped elastic clamping blocks which are separated from each other and two connecting rings which are positioned at two ends of each V-shaped elastic clamping block, and the two connecting rings are fixedly connected with the inner end walls of the two limiting rings which form the expansion limiting assembly respectively.

The outer wall of the middle part of the V-shaped elastic clamping block is an abutting plane, and the abutting plane is a rough surface.

The expansion clamping piece comprises at least six V-shaped elastic clamping blocks which are separated from each other, and the at least six V-shaped elastic clamping blocks which are separated from each other are uniformly distributed along the periphery of the solid anchor rod body.

The expansion limiting component is close to the upper end of the solid anchor rod body, and a plurality of linkage grooves are uniformly distributed on the periphery of one limiting ring, close to the upper end of the solid anchor rod body, of the two limiting rings forming the expansion limiting component.

A first sealing base plate is arranged at the position, close to the upper end, of the solid anchor rod body.

The solid anchor rod body is provided with a first sealing base plate near the upper end, and a screw hole in threaded fit with the solid anchor rod body is formed in the first sealing base plate.

The first sealing base plate is provided with a second sealing base plate below, the second sealing base plate is provided with a round hole matched with the outer diameter of the solid anchor rod body, the round hole is provided with a lug matched with the exhaust pipe limiting groove and the grouting pipe limiting groove respectively, and the two sealing base plates are provided with through holes for the exhaust pipe and the grouting pipe to pass through.

The beneficial effects of the utility model are as follows: the utility model discloses an anchor rod adopts solid construction, establishes slip casting pipe and blast pipe in addition and spacing in solid anchor rod body of rod outer wall to carry on spacingly through the spacing ring, solid construction's stock intensity is higher, and through the blast pipe at slip casting in-process discharge gas, improve the closely knit degree of mud.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings obtained from these drawings still belong to the scope of the present invention without inventive laboriousness.

Fig. 1 is a cross-sectional view of an embodiment of the present invention;

FIG. 2 is a schematic view of the construction according to an embodiment of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2, particularly a mating view of an expansion clip configuration;

FIG. 4 is a mating schematic of another expansion clip configuration;

FIG. 5 is a schematic view of an operating member rotating in cooperation with the limiting ring;

fig. 6 is a schematic structural view of a first seal pad according to an embodiment of the present invention;

fig. 7 is a schematic structural view (a) and an enlarged schematic view (b) of a part a of a second seal pad according to an embodiment of the present invention;

in the drawings, 1, a solid bolt body; 101, an exhaust pipe limiting groove; 102, grouting pipe limiting grooves; 2, exhausting the gas pipe; 3, grouting pipes; 4, expanding the clamping piece; 401, V-shaped elastic clamping blocks; 402, a connection ring; 403, an abutment plane; 5, a first sealing liner plate; 501, screw holes; 6, a second sealing liner plate; 601, a circular hole; 602, a bump; 603, a through hole; 7, a limiting ring; 701, a linkage groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.

It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it is understood that "first" and "second" are only used for convenience of expression and should not be understood as limitations to the embodiments of the present invention, and the following embodiments do not describe any more.

The terms of direction and position in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer to the direction and position of the attached drawings only. Accordingly, the use of directional and positional terms is intended to illustrate and understand the present invention and is not intended to limit the scope of the invention.

An anchor rod assembly is shown in fig. 1 and comprises a solid anchor rod body 1, an exhaust pipe 2 and a grouting pipe 3, wherein the periphery of the solid anchor rod body 1 is provided with an exhaust pipe limiting groove 101 and a grouting pipe limiting groove 102 which extend along the axial direction, and the exhaust pipe 2 and the grouting pipe 3 are respectively arranged in the exhaust pipe limiting groove 101 and the grouting pipe limiting groove 102; the periphery of the solid anchor rod body 1 is fixed with at least one limiting ring 7, and the limiting ring 7 has a limiting effect on the exhaust pipe 2 and the grouting pipe 3 which are positioned in the exhaust pipe limiting groove 101 and the grouting pipe limiting groove 102. The stock adopts solid construction, establishes slip casting pipe and blast pipe in addition and spacing in solid stock body of rod outer wall to carry on spacingly through the spacing ring, solid construction's stock intensity is higher, and through the blast pipe at slip casting in-process exhaust gas, improve the closely knit degree of mud. The solid anchor rod body 1 can be made of a material with moderate and high strength according to actual conditions, such as a steel bar. The exhaust pipe 2 and the grouting pipe 3 may be made of a material with low cost and poor strength, such as plastic.

Further, the solid stock body of rod 1 is cylindric and the periphery is equipped with the external screw thread, spacing ring 7 is the ring form and its inner wall is equipped with the internal thread with the adaptation of solid stock body of rod 1 external screw thread. The spacing ring 7 is fixed on the solid anchor rod body 1 through screw-thread fit, and the position is adjustable and can be dismantled, can be according to the quantity and the position of the length adjustment spacing ring 7 of the solid anchor rod body 1.

The periphery of the solid anchor rod body 1 is fixed with at least two limiting rings 7, and an expansion clamping piece 4 is arranged between the two limiting rings 7 to form an expansion limiting assembly, as shown in fig. 2, the expansion clamping piece 4 has a contraction state and an expansion state, and the expansion clamping piece 4 can be switched between the contraction state and the expansion state by adjusting the distance between the two limiting rings 7 forming the expansion limiting assembly. The effect of the spacing subassembly of inflation provides the spacing fixed action of stock subassembly in the hole, avoids the stock subassembly at the slip casting in-process come-up to and form limiting displacement between two parties to the stock subassembly.

As shown in fig. 3, the expansion clip 4 includes at least two V-shaped elastic clips 401 separated from each other and two connecting rings 402 located at two ends of the V-shaped elastic clip 401, and the two connecting rings 402 are respectively and fixedly connected to inner end walls of two limiting rings 7 forming an expansion limiting assembly. When two spacing rings 7 kept away from each other, V type elasticity fixture block 401 contained angle increase, the distance that outer tip leaves solid stock body of rod 1 reduces, this is the contraction state, when two spacing rings 7 are close to each other, V type elasticity fixture block 401 contained angle is less, outer tip is from the increase of the distance of solid stock body of rod 1, this is the inflation state, when expanding to outer tip of V type elasticity fixture block 401 offsets with the hole wall, the stock subassembly is located the intermediate position in hole basically, and prevent the limiting displacement who controls about the anchor subassembly from top to bottom, avoid the stock subassembly to control about the slip casting in-process come-up and control.

Preferably, as shown in fig. 4, an outer wall of a middle portion of said V-shaped resilient latch 401 is an abutting plane 403, and said abutting plane 403 is a rough plane. Therefore, the contact area between the V-shaped elastic fixture block 401 and the wall of the hole can be increased, and the resistance is improved.

Preferably, the expansion clip 4 comprises at least six V-shaped elastic blocks 401 separated from each other, and the at least six V-shaped elastic blocks 401 separated from each other are uniformly distributed along the periphery of the solid anchor rod body 1.

The expansion limiting component is arranged close to the upper end of the solid anchor rod body 1, and as shown in fig. 1, a plurality of linkage grooves 701 are uniformly distributed on the periphery of one limiting ring 7 which is close to the upper end of the solid anchor rod body 1 in two limiting rings 7 forming the expansion limiting component. A tool similar to that shown in figure 5 may be used to rotate one of the stop rings 7 adjacent the upper end of the solid bolt body 1 so that the two stop rings 7 of the expansion stop assembly are brought into an expanded condition.

Further, as shown in fig. 2, a first sealing pad 5 is disposed on the solid anchor rod body 1 near the upper end.

As shown in fig. 6, the first sealing pad 5 is provided with a screw hole 501 which is in threaded fit with the solid anchor rod body 1. When inserting, first sealing backing plate 5 and solid stock body of rod 1 are the separation, make the spacing subassembly inflation of inflation form limiting displacement after, connect first sealing backing plate 5 and make first sealing backing plate 5 paste and lean on the country rock surface.

As shown in fig. 2, a second sealing pad 6 is arranged below the first sealing pad 5, as shown in fig. 7, a circular hole 601 adapted to the outer diameter of the solid anchor rod body 1 is arranged in the second sealing pad 6, a protrusion 602 adapted to the exhaust pipe limiting groove 101 and the grouting pipe limiting groove 102 is arranged in the circular hole 601, and a through hole 603 for the exhaust pipe 2 and the grouting pipe 3 to pass through is arranged in the two through holes. This reduces the amount of mud leakage.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims

1. The utility model provides an anchor rod subassembly, includes solid anchor rod body (1), blast pipe (2), slip casting pipe (3), its characterized in that: the solid anchor rod body (1) is provided with an exhaust pipe limiting groove (101) and a grouting pipe limiting groove (102) which extend along the axial direction, and the exhaust pipe (2) and the grouting pipe (3) are respectively arranged in the exhaust pipe limiting groove (101) and the grouting pipe limiting groove (102); the solid stock body of rod (1) periphery is fixed with at least one spacing ring (7), spacing ring (7) are right blast pipe (2), slip casting pipe (3) that are located blast pipe spacing groove (101), slip casting pipe spacing groove (102) form limiting displacement.

2. The anchor rod assembly of claim 1, wherein: the solid anchor rod body (1) is cylindrical and is peripherally provided with external threads, and the limiting ring (7) is annular and is provided with internal threads matched with the external threads of the solid anchor rod body (1) on the inner wall.

3. The anchor rod assembly of claim 2, wherein: the solid anchor rod body (1) periphery is fixed with two at least spacing rings (7), and wherein is equipped with inflation fastener (4) between two spacing rings (7) and forms the spacing subassembly of inflation, inflation fastener (4) have contraction state and inflation state, can make inflation fastener (4) switch between contraction state and inflation state through adjusting the interval that constitutes two spacing rings (7) of the spacing subassembly of inflation.

4. A bolt assembly according to claim 3, wherein: the expansion clamping piece (4) comprises at least two V-shaped elastic clamping blocks (401) which are separated from each other and two connecting rings (402) which are positioned at two ends of each V-shaped elastic clamping block (401), and the two connecting rings (402) are fixedly connected with inner end walls of two limiting rings (7) which form an expansion limiting assembly respectively.

5. A rock bolt assembly according to claim 4, wherein: the outer wall of the middle part of the V-shaped elastic fixture block (401) is an abutting plane (403), and the abutting plane (403) is a rough surface.

6. The anchor rod assembly of claim 4, wherein: the expansion clamping piece (4) comprises at least six V-shaped elastic clamping blocks (401) which are separated from each other, and the V-shaped elastic clamping blocks (401) which are separated from each other are uniformly distributed along the periphery of the solid anchor rod body (1).

7. A rock bolt assembly according to claim 3, wherein: the expansion limiting component is close to the upper end of the solid anchor rod body (1), and a plurality of linkage grooves (701) are uniformly distributed on the periphery of one limiting ring (7) close to the upper end of the solid anchor rod body (1) in two limiting rings (7) forming the expansion limiting component.

8. A rock bolt assembly according to any one of claims 1 to 7, wherein: a first sealing cushion plate (5) is arranged at the position, close to the upper end, of the solid anchor rod body (1).

9. A rock bolt assembly according to any one of claims 3 to 7, wherein: the solid anchor rod body (1) is provided with a first sealing base plate (5) near the upper end, and a screw hole (501) in threaded fit with the solid anchor rod body (1) is arranged in the first sealing base plate (5).

10. The anchor rod assembly of claim 9, wherein: first sealed backing plate (5) below is equipped with second sealed backing plate (6), be equipped with in second sealed backing plate (6) with round hole (601) of the adaptation of solid stock body of rod (1) external diameter and be equipped with respectively with blast pipe spacing groove (101), slip casting pipe spacing groove (102) lug (602) of adaptation in round hole (601), and be equipped with in two and supply blast pipe (2), slip casting pipe (3) through-hole (603) that pass.