Liftable guide pipe for overlying strata separation layer grouting settlement reduction

Abstract

The utility model relates to the technical field of grouting settlement reduction, and discloses a liftable guide pipe for overlying strata separation layer grouting settlement reduction, the outer ring of a guide pipe body is located on the inner ring of an outer cylinder and is rotatably sleeved with a rotating cylinder, a motor is fixedly installed on the inner top wall of the outer cylinder, materials are rapidly dispersed through the arrangement of the rotating cylinder, an arc strip, the motor and other structures, and the structure is simple. The materials are accumulated around the grouting holes after flowing out, the grouting holes are possibly blocked, and smooth discharging cannot be achieved, at the moment, the arc strips rotate along with the rotary drum, and when the arc strips rotate, the materials are driven to slide on the surfaces of the arc strips and move towards the periphery from the surfaces of the arc strips, so that the materials accumulated around the grouting holes are thrown out; the materials in the guide pipe body can be uniformly discharged, and the effect of dispersing the materials is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to grouting subsidence reduction technical field especially relates to a kind of lifting catheter for overburden strata separation grouting. BACKGROUND

[0002] Overburden strata separation grouting technology sends grouting material into rock mass by grouting pipeline and grouting pump, fills crack and discrete surface, and forms solid grouting body. This technology not only can improve the overall stability of rock mass, reduce deformation and damage risk, but also can increase the bearing capacity of rock mass, ensure the safety of underground engineering.

[0003] The existing overburden strata separation grouting subsidence reduction catheter structure is simple, and it is easy to block in grouting hole during grouting, which causes inconvenience to diffuse around. In the prior art, a runner is used to speed up the material and disperse quickly, but only the material in a specific position can be stirred, and the pressure of the grouting port cannot be relieved. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a lifting catheter for overburden strata separation grouting subsidence reduction, which has the advantages of avoiding grouting blockage and adhesion, and solves the problems raised in the above background technology.

[0005] The utility model provides the following technical scheme: a lifting catheter for overburden strata separation grouting subsidence reduction, comprising a catheter body, an outer ring of the catheter body is fixedly connected with an outer cylinder, the inside of the catheter body is hollow, a grouting hole is formed in the bottom of the catheter body, a rotating cylinder is rotatably connected with the inner ring of the outer cylinder, and a motor is fixedly installed on the inner top wall of the outer cylinder.

[0006] Through the above structure, the material adhered to the inner wall of the catheter body is scraped off when the scraping block rotates, so that the material is not adhered to the inner wall of the catheter body, affecting the discharge of the material. The material moves around the surface of the arc strip, so that the material accumulated around the grouting hole is thrown out, and the material in the catheter body can be evenly discharged.

[0007] Preferably, the rotating cylinder and the outer cylinder are mechanically sealed, a gear ring is arranged on the top of the rotating cylinder and inside the outer cylinder, the gear ring is above the bottom wall of the outer cylinder, the bottom of the outer cylinder is arc-shaped, arc strips are uniformly fixedly installed on the outer ring of the rotating cylinder in a circular ring shape, and the upper half of the arc strip is matched with the arc shape of the bottom of the outer cylinder.

[0008] Through the above structure, the rotating cylinder drives the arc strip to transport the surrounding material. Since the shape of the arc strip is arranged to throw out the material around the grouting hole, the material is scattered around, avoiding accumulation around the grouting hole and affecting the discharge of the grouting hole.

[0009] Preferably, the bottom outer ring of the conduit body is provided with a rotating groove, the bottom inner ring of the rotating drum is provided with a scraping block inside the rotating groove, the scraping block is located in the bottom inner ring of the conduit body, the scraping block is uniformly provided with a linear array of push strips on one side, and the scraping block is attached to the inner wall of the conduit body.

[0010] Through the above structure, when the rotating drum rotates, the scraping block rotates in the conduit body, the scraping block scrapes off the material adhered to the inner wall of the conduit body, and the push strips stir the material in the conduit body, facilitating the discharge of the grouting hole and accelerating the discharge speed of the grouting hole.

[0011] Preferably, the output shaft end of the motor is fixedly provided with a gear, and the gear is engaged with the gear ring.

[0012] Through the above structure, the motor drives the gear to rotate, the gear is engaged with the gear ring, the gear ring drives the rotating drum to rotate around the outer ring of the conduit body, and the arc strips throw the material around according to the shape of the arc strips.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The overburden separation layer grouting sinking lifting conduit can realize rapid dispersion of material through the rotating drum, arc strips and motor, and the material flowing out will accumulate around the grouting hole, which may cause blockage of the grouting hole and affect smooth discharge. At this time, the arc strips rotate with the rotating drum, the arc strips slide on the surface of the material during rotation, the material moves around according to the surface of the arc strips, the material accumulated around the grouting hole is thrown out, the material in the conduit body can be uniformly discharged, and the effect of dispersing material is achieved.

[0015] 2. The overburden separation layer grouting sinking lifting conduit can realize uniform discharge through the rotating drum, scraping block and push strips. The scraping block is attached to the inner wall of the conduit body during rotation, scrapes off the material adhered to the inner wall of the conduit body, avoids adhesion of the material to the inner wall of the conduit body, and affects the discharge of the material. The push strips on one side of the scraping block can stir the material, the material in the conduit body can be uniformly discharged, and the effect of uniform discharge is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a whole structure schematic view of the utility model;

[0017] Fig. 2 It is a conduit body structure inside schematic view of the utility model;

[0018] Fig. 3 It is an outer cylinder structure inside schematic view of the utility model;

[0019] Fig. 4 It is the explosion schematic view of the rotary drum structure of the utility model.

[0020] In the figure: 1, the catheter body; 11, grouting hole; 2, outer cylinder; 3, rotary drum; 31, gear ring; 32, arc strip; 33, scraper block; 4, motor; 41, gear. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Please refer to Figs. 1-4 A can promote the catheter for overburden separation grouting reduction, including catheter body 1, the outer ring of catheter body 1 is fixedly sleeved with outer cylinder 2, the inside of catheter body 1 is hollow, grouting hole 11 is formed in the bottom of catheter body 1, so that grouting fluid is conveniently discharged from grouting hole 11, the outer ring of catheter body 1 is rotatably sleeved with rotary drum 3 in the inner ring of outer cylinder 2, and motor 4 is fixedly installed on the inner top wall of outer cylinder 2.

[0023] Please refer to Figs. 1-4 Mechanical seal is arranged between rotary drum 3 and outer cylinder 2, when rotary drum 3 rotates at the outer ring of catheter body 1, the seal between rotary drum 3 and outer cylinder 2 will not make materials enter the inside of outer cylinder 2, gear ring 31 is arranged on the top of rotary drum 3 in the inside of outer cylinder 2, gear ring 31 is above the bottom wall of outer cylinder 2, rotary drum 3 is rotatably limited in the inside of outer cylinder 2, the bottom of outer cylinder 2 is arc-shaped, and arc strip 32 is uniformly fixedly installed on the outer ring of rotary drum 3, and the upper half of arc strip 32 is matched with the arc-shaped shape of the bottom of outer cylinder 2.

[0024] After starting motor 4, motor 4 can drive rotary drum 3 to rotate, rotary drum 3 drives arc strip 32 to transport the surrounding materials, since the shape of arc strip 32 is arranged, the materials around grouting hole 11 are thrown out, and the materials around grouting hole 11 are scattered, so that the materials are not accumulated around grouting hole 11, and the discharge of grouting hole 11 is not affected.

[0025] Please refer to Figs. 1-4The bottom outer ring of the duct body 1 is provided with a rotating groove, the bottom inner ring of the rotating drum 3 is provided with a scraping block 33 inside the rotating groove, the scraping block 33 is located in the bottom inner ring of the duct body 1, and linear arrays of poking strips are uniformly arranged on one side of the scraping block 33. The scraping block 33 is attached to the inner wall of the duct body 1. When the rotating drum 3 rotates, the scraping block 33 rotates in the duct body 1. The scraping block 33 scrapes the material adhered to the inner wall of the duct body 1. The poking strips stir the material in the duct body 1, facilitate the discharge of the grouting hole 11, and accelerate the discharge speed of the grouting hole 11 to avoid blockage of the material in the duct body 1.

[0026] Please refer to Figs. 1-4 The output shaft end of the motor 4 is fixedly provided with a gear 41, the gear 41 is engaged with the gear ring 31, and when the motor 4 is started, the motor 4 drives the gear 41 to rotate. Since the gear 41 is engaged with the gear ring 31, the gear ring 31 drives the rotating drum 3 to rotate around the outer ring of the duct body 1. The arc strip 32 provided on the outer ring of the rotating drum 3 conveys the material discharged from the grouting hole 11, and the material is thrown around according to the shape of the arc strip 32, avoiding blockage of the grouting hole 11 after the material is discharged from the grouting hole 11. The arc strip 32 accelerates the movement of the material, so that the material in the duct body 1 can flow out more quickly.

[0027] Working principle: when the device is used, the device is inserted into the pre-formed hole, and the material is filled into the inside of the duct body 1. The motor 4 is started, the motor 4 drives the gear 41 to rotate, the gear 41 drives the rotating drum 3 to rotate around the outer ring of the duct body 1 through engagement with the gear ring 31, and the scraping block 33 rotates with the rotating drum 3. When the scraping block 33 rotates, it is attached to the inner wall of the duct body 1 to scrape the material adhered to the inner wall of the duct body 1, avoiding the material adhered to the inner wall of the duct body 1 affecting the discharge of the material. The poking strips arranged on one side of the scraping block 33 stir the material, so that the material in the duct body 1 flows out uniformly from the grouting hole 11. Due to gravity, the material flows out and accumulates around the grouting hole 11, which may cause blockage of the grouting hole 11 and affect the smooth discharge of the material. At this time, the arc strip 32 rotates with the rotating drum 3. When the arc strip 32 rotates, the material on the surface of the arc strip 32 slides, and the material moves around the surface of the arc strip 32, so that the material accumulated around the grouting hole 11 is thrown out, and the material in the duct body 1 can be discharged uniformly.

Claims

1. A lifting pipe for overburden separation grouting subsidence reduction, comprising a pipe body (1), characterized in that: The outer ring of the conduit body (1) is fixedly sleeved with an outer cylinder (2), the inside of the conduit body (1) is hollow, the bottom of the conduit body (1) is provided with a grouting hole (11), the outer ring of the conduit body (1) is rotatably sleeved with a rotating cylinder (3) at the inner ring of the outer cylinder (2), and the inside of the outer cylinder (2) is fixedly installed with a motor (4) on the top wall.

2. The liftable conduit for overburden separation grouting and subsidence reduction according to claim 1, characterized in that: The rotating cylinder (3) is mechanically sealed with the outer cylinder (2), the top of the rotating cylinder (3) is provided with a gear ring (31) in the inside of the outer cylinder (2), the gear ring (31) is above the bottom wall of the outer cylinder (2), the bottom of the outer cylinder (2) is arc-shaped, the outer ring of the rotating cylinder (3) is uniformly fixedly installed with arc strips (32) in a circular ring shape, and the upper half of the arc strips (32) is matched with the arc-shaped shape of the bottom of the outer cylinder (2).

3. The liftable conduit for overburden separation grouting and subsidence reduction according to claim 2, characterized in that: The bottom outer ring of the conduit body (1) is provided with a rotating groove, the bottom inner ring of the rotating cylinder (3) is provided with a scraping block (33) in the inside of the rotating groove, the scraping block (33) is located at the bottom inner ring of the conduit body (1), the scraping block (33) is uniformly provided with a poking strip in a linear array on one side, and the scraping block (33) is attached to the inner wall of the conduit body (1) on the outside.

4. The liftable conduit for overburden separation grouting and subsidence reduction according to claim 3, characterized in that: The output shaft end of the motor (4) is fixedly installed with a gear (41), and the gear (41) is engaged with the gear ring (31).

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