CN112096298A

CN112096298A - Variable-diameter rotary spraying reinforcement anchor

Info

Publication number: CN112096298A
Application number: CN202010938870.9A
Authority: CN
Inventors: 吴连祥; 沈建辉; 贾华; 周宏博; 江胜平; 陆进; 徐红健; 宋炜东
Original assignee: Qidong Architectural Design Institute Co ltd
Current assignee: Qidong Architectural Design Institute Co ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2020-12-18
Anticipated expiration: 2040-09-09
Also published as: CN112096298B

Abstract

The application relates to a variable-diameter rotary spraying reinforced anchor, which comprises a rack, wherein a drill rod is arranged on the rack, a plurality of high-pressure automatic rotating nozzles are arranged on the outer side wall of the drill rod, a plurality of embedded grooves are formed in the outer side wall of the drill rod, and a variable-diameter cylinder is arranged on the outer side wall of the drill rod; one end of the reducer cylinder in the length direction is provided with a socket, the outer side wall of the reducer cylinder is provided with a plurality of extension chambers, and the peripheral sizes of the adjacent extension chambers are different; the side wall of the extension cavity far away from the direction of the drill rod is provided with a penetration hole, and one end of the reducer cylinder far away from the direction of the sleeve joint is provided with a port annular plate; the outer side wall of the drill rod is provided with a positioning ring plate, and a positioning assembly is arranged between the positioning ring plate and the port ring plate; and the outer side wall of the drill rod is provided with a limit ring plate. This application has the knot block that makes the certain quantity reducing in the anchor rod hole of adjacent structure, effectively ensures and improves the joint strength of two adjacent knot blocks and the effect of bearing strength.

Description

Variable-diameter rotary spraying reinforcement anchor

Technical Field

The application relates to the field of rotary spraying anchors, in particular to a variable-diameter rotary spraying reinforcement anchor.

Background

At present, a jet grouting jumbolter is bolting equipment widely applied to basement anti-floating foundation pit support and side slope support. The working principle of the rotary jet jumbolter is as follows: the anchor rod is simultaneously abutted into the two adjacent structural bodies, mortar binder is conveyed to the inner cavity of the anchor rod through the high-pressure pump, and the mortar binder can be sprayed into the inner cavity of the anchor rod hole through the nozzle of the anchor rod. After the anchor rod is pulled out from the anchor rod hole, the condensed mortar binder can be simultaneously and fixedly connected with two adjacent structural bodies, and a counter-pulling acting force is formed inside the two adjacent structural bodies, so that the connection strength of the two adjacent structural bodies is improved, and the position stability of the two structural bodies is ensured.

In actual construction, the nodular blocks formed by the solidified mortar binder have two forms of same diameter and variable diameter. The variable-diameter nodule blocks have different peripheral sizes and tend to increase or decrease gradually, and have larger static friction resistance in two adjacent structural bodies, so that stronger counter-pulling acting force can be provided, and the two adjacent structural bodies are connected more tightly.

Chinese patent publication No. CN203594029U discloses a construction structure of a high-pressure one-step forming variable diameter anchor rod, which comprises a drill rod, a high-pressure automatic rotating nozzle and a high-pressure pump. The drill rod is a spiral drill rod with a hollow inner cavity, the high-pressure automatic rotating nozzle is positioned at one end of the drill rod in the length direction, and the high-pressure pump is positioned at one end of the drill rod far away from the high-pressure automatic rotating nozzle. The outer side wall of the drill rod is provided with a mounting ring and a limiting baffle, the mounting ring is located between the limiting baffle and the high-pressure automatic rotating spray head, and an anchor rope is arranged on the mounting ring. When the drill rod goes deep into the structure body to drill the anchor rod hole, the mounting ring and the anchor cable drill rod go deep into the inner cavity of the anchor rod hole. When the drilling rod deepens to the inside certain degree of depth of structure, the high-pressure pump can pour into cement mortar to the drilling rod inner chamber, and the automatic rotatory nozzle of high pressure can spray cement mortar to anchor rod hole inner chamber to form solid-state knot block, and then two adjacent structures of while counter-pull. Operating personnel can ensure the dwell time of drill bit in the stock hole to increase the cement mortar jet output of high pressure autogiration shower nozzle, and then form not unidimensional tubercle block in the stock hole, with the opposite tensile strength who improves two adjacent structures of tubercle block opposite pull. And finally, the drill rod is pulled out of the anchor rod hole, and the anchor cable is left in the inner cavity of the anchor rod hole and is fixedly connected inside all the nodular block bodies.

In view of the above-mentioned related technologies, the inventor believes that the phenomena of hole shrinkage and hole collapse are easily caused when the drill rod drills in the structure, and in this case, the cement mortar sprayed by the high-pressure automatic rotary nozzle is difficult to form a stable nodular block, and further difficult to form a variable-diameter nodular block in the anchor rod hole.

Disclosure of Invention

In order to improve the downthehole difficult problem that forms the tuberosity block of reducing of stock, this application provides a variable diameter spouts soon and adds muscle anchor.

The application provides a become diameter and spout with muscle anchor soon adopts following technical scheme:

a variable-diameter rotary spraying reinforced anchor comprises a rack, wherein a drill rod is arranged on the rack, a plurality of high-pressure automatic rotary nozzles are arranged at one end of the outer side wall of the drill rod in the length direction, a plurality of embedded grooves for containing the high-pressure automatic rotary nozzles are formed in the outer side wall of the drill rod, and a reducer is arranged on the outer side wall of the drill rod; one end of the reducer cylinder in the length direction is provided with a socket, the outer side wall of the reducer cylinder is provided with a plurality of extension chambers at intervals, and the peripheral sizes of the adjacent extension chambers are different; a plurality of penetration holes are arranged in the side wall of each extending cavity far away from the direction of the drill rod in a penetrating manner, and a port annular plate is arranged at one end of the reducer cylinder far away from the direction of the sleeve joint; the outer side wall of the drill rod is provided with a positioning ring plate which can abut against the port ring plate, and a positioning assembly is arranged between the positioning ring plate and the port ring plate; and a limiting ring plate which can be sleeved with the reducer cylinder is arranged on the outer side wall of the drill rod and is positioned on the positioning ring plate.

By adopting the technical scheme, one end of the reducer in the length direction is sleeved outside the drill rod through the sleeve joint, the limiting ring plate is propped into the inner cavity of the reducer and matched with the locking of the positioning assembly so that the other end of the reducer in the length direction is detachably fixed outside the drill rod, and the reducer can be inserted into the inner cavity of the structure along with the drill rod to a certain depth; an operator can loosen the connecting structure of the reducer cylinder and the drill rod by disassembling the positioning assembly, and then control the drill rod to rotate reversely through the rack so that the drill rod is slowly and outwards drawn out of the inner cavity of the reducer cylinder, and at the moment, the reducer cylinder is clamped in the inner cavity of the anchor rod hole; cement mortar can be filled into the reducing cylinder through the high-pressure automatic rotating nozzle in the outward pumping process of the drill rod, the cement mortar can be filled into extension chambers with different peripheral sizes and can overflow to the inner cavity of the anchor rod hole through the penetration hole, and then a node block body with stable position and reducing diameter is formed in the inner cavity of the anchor rod hole; this process has effectively ensured cement mortar and has formed the stability and the efficiency of the tubercle block of reducing in the anchor rod hole, and then effectively ensures and has improved the joint strength and the bearing strength of two adjacent structures.

Preferably, the positioning assembly comprises a connecting column, a clamping plate and a locking nut, the clamping plate is located at one end of the connecting column in the length direction, and the locking nut can be in threaded fit with the connecting column; the utility model discloses a quick-witted port ring board, including the spliced pole of being convenient for, the spliced pole of being convenient for passes through the first through-connection hole that is provided with the spliced pole of being convenient for and passes through to the location crown plate lateral wall, port crown plate lateral wall just is located first through-connection hole department and runs through the hole of stepping down that is provided with the spliced pole of being convenient for and.

Through adopting above-mentioned technical scheme, the spliced pole can run through first through-connection hole simultaneously and step down the hole, and then with connecting positioning ring board and port crown plate simultaneously, joint plate and lock nut can the chucking spliced pole length direction's both ends simultaneously, and then make positioning ring board and port crown plate fixed connection be a whole to effectively ensured a reducing section of thick bamboo and cup jointed in outside position stability and joint strength of drilling rod.

Preferably, the outer side wall of the positioning ring plate is provided with an accommodating groove used for limiting the position of the clamping plate around the periphery of the first through connecting hole, and the outer side wall of the locking nut is provided with a plurality of operating rods.

By adopting the technical scheme, the accommodating groove limits the position of the clamping plate so as to improve the connection stability and tightness of the clamping plate abutting against the outer side wall of the positioning ring plate, further improve the position stability of the connecting column connecting the positioning ring plate and the port ring plate at the same time, and ensure the position stability of the reducer sleeved outside the drill rod; the operating rod is convenient for operating personnel to hold the back fast turn lock nut of holding between the fingers, and then passes through the fixed work efficiency when dismantling the reducing section of thick bamboo of locating component with the improvement operating personnel.

Preferably, the outer side wall of the positioning ring plate and the side wall thereof facing the port ring plate are provided with a settling tank for defining the position of the port ring plate.

Through adopting above-mentioned technical scheme, the subsider is convenient for the port crown plate to support into to area of contact when improving the lateral wall of port crown plate and the mutual orientation of position ring board and offset, and further improved the joint strength and the connection stability of locating component to position ring board and port crown plate.

Preferably, an interference cushion is arranged in the settling tank.

Through adopting above-mentioned technical scheme, the interference pad can support tightly between port crown plate and location crown plate, and it has greatly reduced the space between port crown plate and the location crown plate, and then has reduced the phenomenon that the pine appears shaking, moves partially between port crown plate and the location crown plate, improves the port crown plate and the tight degree of being connected of location crown plate to the joint strength and the positional stability of reducer outside the drilling rod have effectively been ensured.

Preferably, a plurality of deformation cavities are arranged in the interference pad at intervals.

Through adopting above-mentioned technical scheme, it is more soft to warp the cavity messenger interference pad, and then makes the interference pad can occupy more spaces between port crown plate and the position crown plate to further reduce port crown plate and position crown plate and appear pine take off, gliding phenomenon, and further ensured the joint strength and the positional stability of reducing section of thick bamboo outside the drilling rod.

Preferably, the side wall of the positioning ring plate, which is far away from the drill rod direction, is provided with an extending hole in a penetrating manner along the thickness direction of the side wall, and a clamping cylinder is arranged in the extending hole; the side wall of the port ring plate far away from the direction of the reducer cylinder is provided with a jacking groove which can be symmetrical with the clamping cylinder, and clamping pieces are arranged in the jacking groove and the clamping cylinder together.

Through adopting above-mentioned technical scheme, the fastener accessible body of rod is at a block section of thick bamboo threaded connection and makes its length direction's one end support to push up and connect the inslot and screw up, and then makes the joint strength of position crown plate and port crown plate can further improve to the joint strength and the position stability of reducer section of thick bamboo outside the drilling rod have further been improved.

Preferably, the outer side wall of the clamping cylinder is symmetrically provided with two stabilizing strips, and the side wall of the positioning ring plate far away from the drill rod direction and positioned at the extending hole are provided with two side holes matched with the stabilizing strips.

Through adopting above-mentioned technical scheme, after the side pore inner chamber of stabilizing strip butt with it adaptation, can effectively inject a block section of thick bamboo in the downthehole position of extension, and then greatly improved a block section of thick bamboo position stability in the position ring board to the position stability and the joint strength of a block piece through a block section of thick bamboo and port ring board fixed connection have been improved.

Preferably, the transverse cross-section of the stabilizing strip is of a dovetail groove type.

Through adopting above-mentioned technical scheme, the stable strip of forked tail cell type, its lateral wall width of keeping away from a block section of thick bamboo direction is far away from the lateral wall width of its opposite side, and the width difference between the two is degressive trend, and then when stable strip supports the cell body inner chamber with its adaptation, the stable position of stabilizing the strip and be difficult for appearing the pine shake, the phenomenon of prejudice, and then greatly ensured the position stability of a block section of thick bamboo in the position ring board, and the joint strength of fastener to position ring board and port ring board.

Preferably, the end wall of the diameter-changing cylinder facing the positioning ring plate is provided with a locking groove, the outer side wall of the positioning ring plate is provided with a second through hole in a penetrating manner at the position of the locking groove, and a locking piece is arranged in the second through hole and the locking groove together.

Through adopting above-mentioned technical scheme, the lock piece can pass second through connecting hole and screw up at the locking inslot internal thread, and it makes a reducing section of thick bamboo and position ring board fixed connection, and then has effectively ensured the joint strength of a position ring board and a reducing section of thick bamboo to further improved a reducing section of thick bamboo and cup jointed in the outside joint strength and the positional stability of drilling rod.

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

1. the reducing cylinder is clamped in the structure body to provide a stable shell for cement mortar to be solidified and formed, and the extension chambers with different outer diameter sizes enable the cement mortar to form reducing node blocks after being solidified, so that the stability and the efficiency of the reducing node blocks formed in the structure body by the cement mortar are effectively guaranteed, and the strength and the bearing strength of a connector of two adjacent structure bodies are further effectively guaranteed and improved;

2. locating component, locking piece and fastener have effectively injectd a reducing section of thick bamboo and have cup jointed stability in the drilling rod outside to greatly improved a reducing section of thick bamboo and cup jointed in the outside joint strength of drilling rod, and then ensured a reducing section of thick bamboo along with boring the stability that the pole supported in the inner chamber of structure, and ensured the follow-up stability that forms the node block of reducing in the structure inside of cement mortar.

Drawings

FIG. 1 is a schematic structural diagram of a variable-diameter jet grouting reinforced anchor according to an embodiment of the present application;

FIG. 2 is an exploded view of the connection of the reducer and the drill pipe;

FIG. 3 is a schematic longitudinal sectional view of the connection of the retainer ring plate with the port ring plate and the retainer ring plate;

FIG. 4 is a schematic diagram of a partial explosion of the connection of the port ring plate and the retaining ring plate;

FIG. 5 is an exploded view of the connection of the engaging member, the locking member and the retainer ring plate.

Description of reference numerals: 1. a frame; 101. a drill stem; 102. the high-pressure automatic rotating spray head; 103. an embedded groove is formed; 104. a limit ring plate; 2. a reducing cylinder; 201. an extension chamber; 202. a penetration hole; 203. a socket; 204. a locking member; 205. a locking groove; 3. a port ring plate; 301. a hole of abdication; 302. a butting groove; 4. positioning the ring plate; 401. a settling tank; 402. an interference pad; 403. deforming the cavity; 404. a first through hole; 405. an accommodating groove; 406. an extension hole; 407. a side hole; 408. a second through hole; 5. a positioning assembly; 501. connecting columns; 502. a clamping and connecting plate; 503. a lock nut; 504. an operating lever; 6. a clamping cylinder; 601. a stabilizing strip; 602. a fastener.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses variable diameter jet grouting reinforcement anchor. Referring to fig. 1 and 2, the machine frame 1 is included. A drill rod 101 is arranged on the frame 1, and a plurality of high-pressure automatic rotating nozzles 102 are arranged on the outer side wall of the drill rod 101 and at intervals at one end of the drill rod in the length direction. The outer side wall of the drill rod 101 is sleeved with a reducer cylinder 2, a plurality of extension chambers 201 with different peripheral sizes are arranged on the outer side wall of the reducer cylinder 2 at intervals, and a plurality of penetration holes 202 are arranged on the side wall of each extension chamber 201 far away from the direction of the drill rod 101 along the thickness direction of the side wall. One end of the length direction of the reducer cylinder 2 is provided with a socket 203, and the other end of the length direction of the reducer cylinder 2 is provided with a port annular plate 3. The outer side wall of the drill rod 101 is provided with a limit ring plate 104 and a locating ring plate 4, and the peripheral size of the locating ring plate 4 is larger than that of the limit ring plate 104. The stop ring plate 104 may abut into the inner cavity of the reducer cylinder 2 to define the position of the reducer cylinder 2 on the outer sidewall of the drill rod 101. The positioning ring plate 4 can be abutted to the port ring plate 3, and the positioning assembly 5 is arranged between the positioning ring plate 4 and the port ring plate 3 together, so that the connection strength of the outer side wall of the drill rod 101 in a sleeved mode of the reducer cylinder 2 is guaranteed.

Referring to fig. 1 and 2, when drill rod 101 with reducer 2 butts into two adjacent structure inner cavities for a certain depth, an operator can disassemble positioning assembly 5 to separate reducer 2 from the connection structure of drill rod 101, and then when drill rod 101 is slowly drawn out from the anchor rod hole inner cavity, reducer 2 can be connected to the anchor rod hole inner cavity in a clamping manner, and the peripheral dimension difference of the extension chamber 201 is used for forming a plurality of reducing chambers in the anchor rod hole. The high-pressure pump of frame 1 can fill cement mortar to the drill bit inner chamber, and high-pressure automatic rotatory nozzle 102 sprays cement mortar and fills full reducing cylinder 2 and extend the cavity 201 inner chamber to, cement mortar accessible infiltration hole 202 escape into anchor rod hole inner chamber, and then after cement mortar binds, with the positional stability of improvement reducing cylinder 2 in the anchor rod hole, and then reach two adjacent structure joint strength of improvement and ensure the effect of the two bearing strength.

Referring to fig. 2, the outer side wall of the drill rod 101 and the end of the outer side wall, which is located in the direction close to the drill bit, are provided with embedded grooves 103, the number of which is equal to that of the high-pressure automatic rotary nozzles 102, and the embedded grooves 103 are used for accommodating the high-pressure automatic rotary nozzles 102, so that the outer side wall of the drill rod 101 is located on the same horizontal plane everywhere.

Referring to fig. 2, the reducer cylinder 2 is a hollow cylinder made of steel, and the size of an inner cavity of the hollow cylinder is slightly larger than the size of the outer periphery of the drill rod 101. The inner cavity of the extension chamber 201 is communicated with the inner cavity of the reducer cylinder 2, the peripheral dimension of the adjacent extension chamber 201 is in a decreasing trend, and the extension chamber 201 farthest from the socket 203 is the extension chamber 201 with the smallest peripheral dimension. When the reducer cylinder 2 is sleeved outside the drill rod 101, the sleeve joint 203 can enable one end of the reducer cylinder 2 in the length direction to be clamped outside a drill bit of the drill rod 101.

Referring to fig. 2 and 3, the port ring plate 3 and the reducer cylinder 2 are integrally formed, and the side wall of the width direction of the port ring plate and the end wall of the reducer cylinder 2 in the direction away from the socket 203 are located on the same longitudinal plane. The limit ring plate 104 and the drill rod 101 are integrally formed, when the sleeve joint 203 is clamped outside a drill bit of the drill rod 101, the reducing cylinder 2 is just sleeved on the outer edge of the limit ring plate 104, and the end wall of the reducing cylinder 2 in the length direction and the side wall of the limit ring plate 104 in the width direction are located on the same longitudinal surface. At this time, the positions of both ends of the reducer cylinder 2 in the length direction are simultaneously limited, and the reducer cylinder 2 is stably sleeved outside the drill rod 101.

Referring to fig. 3 and 4, the positioning ring plate 4 is integrally formed with the drill rod 101, a settling tank 401 is arranged on the side wall of the positioning ring plate 4 facing the reducer cylinder 2, and the positioning ring plate 4 is located in the inner cavity of the settling tank 401. When the reducer cylinder 2 is sleeved outside the limiting ring plate 104, the port ring plate 3 can be abutted into the inner cavity of the inner embedded groove 103, and the end wall of the port ring plate 3 far away from the direction of the reducer cylinder 2 is abutted against the inner top wall of the inner embedded groove 103, so that the position stability of the reducer cylinder 2 sleeved outside the drill rod 101 is further improved.

Referring to fig. 3, an interference pad 402 is adhered to the inside of the settling tank 401, in this embodiment, the interference pad 402 is a rubber pad with flexible texture and a large static friction coefficient on the outer surface, which can improve the tight contact between the positioning ring plate 4 and the port ring plate 3, thereby ensuring the tight connection between the positioning ring plate 4 and the port ring plate 3, and the limiting ring plate 104. A plurality of deformation cavities 403 are arranged in the interference pad 402 at intervals, each deformation cavity 403 extends along the thickness direction of the interference pad 402, and the deformation cavities 403 enable the interference pad 402 to be softer, so that the connection tightness between the positioning ring plate 4 and the port ring plate 3 is further improved, and the position stability of the reducer cylinder 2 outside the drill rod 101 is further guaranteed.

Referring to fig. 3 and 4, the positioning assembly 5 includes a connection column 501, a clamping plate 502 and a locking nut 503, in this embodiment, the connection column 501 is a screw rod, the locking nut 503 is a hexagon nut, a plurality of operating rods 504 convenient for fingers to hold are perpendicularly welded on the outer side wall of the locking nut 503, and the locking nut 503 can be in threaded fit with the connection column 501. The clamping plate 502 is a solid steel plate, and is perpendicularly welded to one end of the connecting column 501 in the length direction. The outer side wall of the positioning ring plate 4 is provided with a first through hole 404 along the thickness direction thereof, and the inner diameter of the first through hole 404 is larger than the outer diameter of the connecting column 501. The outer side wall of the positioning ring plate 4 is provided with a receiving groove 405 around the periphery of the first through-hole 404, and the inner diameter of the receiving groove 405 is matched with the outer periphery of the clamping plate 502. The side wall of the port ring plate 3 facing the positioning ring plate 4 is provided with a yielding hole 301 along the thickness direction, the yielding hole 301 can be symmetrical to the first through hole 404, and the inner diameter of the yielding hole 301 is matched with the inner diameter of the first through hole 404.

Referring to fig. 3 and 4, an operator may sequentially pass one end of the connecting column 501 away from the clamping plate 502 through the first through hole 404 and the abdicating hole 301 until the clamping plate 502 completely abuts against the inner cavity of the receiving slot 405. Then, the locking nut 503 is sleeved outside the connection column 501 from the port annular plate 3 and screwed, and then the two ends of the connection column 501 in the length direction are simultaneously limited by the clamping plate 502 and the locking nut 503, so that the port annular plate 3 is fixedly connected with the positioning annular plate 4, and the reducer cylinder 2 is stably sleeved outside the drill rod 101.

Referring to fig. 5, an extension hole 406 and two side holes 407 are formed through a side wall of the positioning ring plate 4 away from the drill rod 101 in the thickness direction thereof, the two side holes 407 are respectively located at two radial ends of the extension hole 406, and an inner cavity of each side hole 407 is communicated with an inner cavity of the extension hole 406. The extension hole 406 is provided with a locking cylinder 6, and the locking cylinder 6 is a hollow cylinder whose inner side wall is a thread groove. Be provided with in the side hole 407 and stabilize the strip 601, the transverse section of stabilizing the strip 601 is the forked tail cell type, and two stabilize the strip 601 and weld respectively in a block section of thick bamboo 6 lateral walls, and then so that operating personnel with a block section of thick bamboo 6 with stabilize the strip 601 support into the locating ring board 4 inside and weld simultaneously.

Referring to fig. 3 and 5, a top contact groove 302 is formed in a side wall of the port ring plate 3 in a direction away from the reducer cylinder 2, and the top contact groove 302 is a thread groove. The top notch of the abutting groove 302 may be symmetrical to the bottom notch of the extension hole 406 when the port ring plate 3 is fully seated into the interior cavity of the settling tank 401. The engaging barrel 6 and the abutting groove 302 are provided with an engaging member 602, and the engaging member 602 is a large bolt. The rod body of the engaging member 602 may be screwed in the internal thread of the engaging cylinder 6 and one end of the engaging cylinder in the length direction may be screwed in the abutting groove 302, so as to generate a clamping acting force between the port annular plate 3 and the positioning annular plate 4, thereby further improving the position stability of the reducer cylinder 2 sleeved outside the drill rod 101.

Referring to fig. 3 and 5, a locking member 204 is commonly disposed between the reducing cylinder 2 and the positioning ring plate 4, and the locking member 204 is a bolt. The outer side wall of the positioning ring plate 4 is provided with a second through hole 408 along the thickness direction thereof, through which the rod body of the locking member 204 can conveniently pass, the end wall of the reducer cylinder 2 facing the positioning ring plate 4 is provided with a locking groove 205 which can be symmetrical to the second through hole 408, and the locking groove 205 is a thread groove. Furthermore, the rod body of the locking member 204 passes through the second through-hole 408 and is screwed in the locking groove 205, so that the positioning ring plate 4 is fixedly connected with the reducer cylinder 2, and the connection strength and the position stability of the reducer cylinder 2 sleeved outside the drill rod 101 are further improved.

The implementation principle of the variable-diameter rotary spraying reinforcement anchor is as follows: the drill rod 101 sleeved with the reducer cylinder 2 can drill anchor rod holes with a certain depth in two adjacent structural bodies, when the port ring plate 3 is to approach the structural bodies, an operator can screw the locking nut 503 to separate the connecting column 501 from the positioning ring plate 4 and the port ring plate 3, screw the clamping piece 602 to loosen the connecting structure of the positioning ring plate 4 and the port ring plate 3, and screw the locking piece 204 to release the fixed connection relationship between the reducer cylinder 2 and the positioning ring plate 4. And then, driving the drill rod 101 with the reducer cylinder 2 to continuously penetrate into the structure for a certain distance through the machine body until the port annular plate 3 is tightly abutted against the structure or the port annular plate 3 is abutted into the structure. At this time, the connection structure of the reducer casing 2 and the drill rod 101 is loosened.

An operator can rotate the drill rod 101 reversely for a certain time through the machine body, a drill bit of the drill rod 101 can be separated from the sleeve joint 203 and contracted to the inner cavity of the extension chamber 201, and the displacement distance of the drill rod 101 can be judged through the sand output at the opening of the anchor rod hole. The high-pressure pump of the frame 1 is started to fill cement mortar into the inner cavity of the drill rod 101, the high-pressure automatic rotary spray head 102 sprays the cement mortar outwards to fill the extension chamber 201, the cement mortar filling the extension chamber 201 can be discharged to the inner cavity of the anchor rod hole through the penetration hole 202, and then after the cement mortar is condensed, the position stability of the reducer cylinder 2 in the anchor rod hole is improved.

The position of reverse drilling rod 101 in reducing cylinder 2 continues to shrink until taking out the anchor rod hole completely, and reducing cylinder 2 of different peripheral dimensions can be filled up by cement mortar at the in-process that drilling rod 101 contracts, and then with the knot block that forms a plurality of reducing in the anchor rod hole. The reducing cylinder 2 can effectively ensure the forming shape of cement mortar for the supporting effect of the anchor rod hole, thereby effectively ensuring the forming efficiency of the reducing nodular block bodies in the anchor rod hole, and effectively improving the connection strength and the bearing strength between two adjacent structural bodies.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above 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 a variable diameter spouts with muscle anchor soon, includes frame (1), be provided with drilling rod (101) in frame (1), drilling rod (101) lateral wall and the one end that is located its length direction are provided with a plurality of high pressure automatic rotary nozzle (102), its characterized in that: the outer side wall of the drill rod (101) is provided with a plurality of embedded grooves (103) for containing the high-pressure automatic rotating spray head (102), and the outer side wall of the drill rod (101) is provided with a reducer cylinder (2); one end of the reducer cylinder (2) in the length direction is provided with a sleeve joint (203), the outer side wall of the reducer cylinder (2) is provided with a plurality of extension chambers (201) at intervals, and the peripheral sizes of the adjacent extension chambers (201) are different; a plurality of penetration holes (202) are arranged in a penetrating manner on the side wall of each extension chamber (201) far away from the direction of the drill rod (101), and a port ring plate (3) is arranged at one end of the reducer cylinder (2) far away from the direction of the sleeve joint (203); the outer side wall of the drill rod (101) is provided with a positioning ring plate (4) which can be abutted against the port ring plate (3), and a positioning assembly (5) is arranged between the positioning ring plate (4) and the port ring plate (3) together; and a limiting ring plate (104) which can be sleeved with the reducer cylinder (2) is arranged on the outer side wall of the drill rod (101) and is positioned on the positioning ring plate (4).

2. The variable-diameter rotary-spraying reinforced anchor according to claim 1, wherein: the positioning assembly (5) comprises a connecting column (501), a clamping plate (502) and a locking nut (503), the clamping plate (502) is located at one end of the connecting column (501) in the length direction, and the locking nut (503) can be in threaded fit with the connecting column (501); the utility model discloses a hole of stepping down (301) that the spliced pole (501) of being convenient for passed is provided with in location crown plate (4) lateral wall through, port crown plate (3) lateral wall just is located first logical continuous hole (404) department and runs through and is provided with in the department of being convenient for spliced pole (501) to pass through first logical continuous hole (404).

3. The variable-diameter rotary-spraying reinforced anchor according to claim 2, wherein: the outer side wall of the positioning ring plate (4) is provided with an accommodating groove (405) used for limiting the position of the clamping plate (502) around the periphery of the first through hole (404), and the outer side wall of the locking nut (503) is provided with a plurality of operating rods (504).

4. The variable-diameter rotary-spraying reinforced anchor according to claim 3, wherein: the outer side wall of the positioning ring plate (4) and the side wall facing the port ring plate (3) are provided with settling tanks (401) for limiting the positions of the port ring plate (3).

5. The variable-diameter rotary-spraying reinforced anchor according to claim 4, wherein: an interference pad (402) is arranged in the settling tank (401).

6. The variable-diameter rotary-spraying reinforced anchor according to claim 5, wherein: a plurality of deformation cavities (403) are arranged in the interference pad (402) at intervals.

7. The variable-diameter rotary-spraying reinforced anchor according to claim 1, wherein: an extension hole (406) penetrates through the side wall of the positioning ring plate (4) far away from the direction of the drill rod (101) along the thickness direction of the side wall, and a clamping cylinder (6) is arranged in the extension hole (406); the side wall of the port ring plate (3) far away from the direction of the reducer cylinder (2) is provided with a jacking groove (302) which can be symmetrical with the clamping cylinder (6), and clamping pieces (602) are jointly arranged in the jacking groove (302) and the clamping cylinder (6).

8. The variable-diameter rotary-spraying reinforced anchor according to claim 7, wherein: the outer side wall of the clamping cylinder (6) is symmetrically provided with two stabilizing strips (601), and the positioning ring plate (4) is far away from the side wall of the drill rod (101) and is located at the extending hole (406) to be provided with two side holes (407) matched with the stabilizing strips (601).

9. The variable-diameter rotary-spraying reinforced anchor according to claim 8, wherein: the transverse section of the stabilizing strip (601) is in a dovetail groove shape.

10. The variable-diameter rotary-spraying reinforced anchor according to claim 1, wherein: the end wall of the reducer cylinder (2) facing the positioning ring plate (4) is provided with a locking groove (205), the outer side wall of the positioning ring plate (4) is located on the locking groove (205) and penetrates through a second through hole (408), and a locking piece (204) is arranged in the second through hole (408) and the locking groove (205) together.