Dragging-back auxiliary device for dragging pipe

Abstract

The utility model provides a dragging pipe back dragging auxiliary device which comprises a base, the top of the base is provided with an adjusting plate through an adjusting mechanism, the right view of the adjusting plate is in a U shape, and rollers are rotationally arranged at the bottom of the inner side of the adjusting plate at equal intervals. A roller is arranged at the bottom of the inner side of the adjusting plate, the roller does not need to be replaced according to the size of the pipe diameter, the dragging pipe is convenient to move, and operation is convenient; the first hydraulic cylinder drives the adjusting plate to rotate at the top of the supporting rod, the angles of the adjusting plate and the roller are conveniently adjusted according to the included angles between the dragging pipe and the soil outlet end and the soil inlet end, the adjusting plate and the roller make contact with the dragging pipe conveniently, and the surface of the dragging pipe is prevented from being abraded; and meanwhile, an extrusion plate is driven by a second hydraulic cylinder to clamp the dragging pipe, the extrusion plate is conveniently driven by a servo motor, a screw rod and a sliding plate to move towards one side, so that external force is applied to the dragging pipe, the dragging pipe is helped to move, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of towing tube backhauling, in particular to a towing tube backhauling auxiliary device. Background Art

[0002] The drag pipe is a pipe that is pulled and dragged by the airway. During the horizontal directional drilling construction process, when the drill rod drives the reamer and the drag pipe to be pulled back, the drag pipe will bend when it is dragged into the unearthed end or comes out from the entrapped end. At the same time, it will rub against the ground at the unearthed end and the entrapped end. In order to avoid excessive friction and damage to the pipe, especially when there are relatively hard stones on the ground, a back-dragging auxiliary device will be set between the drag pipe and the unearthed end and the entrapped end.

[0003] The Chinese utility model patent with publication number CN217977716U proposes a back-pulling auxiliary device for horizontal directional drilling and dragging pipelines. The driving unit can adjust the inclination angles of the first support plate and the second support plate according to the diameter of the pipeline in actual construction, so that the top surfaces of the first support plate and the second support plate are in contact with the pipeline, so that the pipeline is fully in contact with the back-pulling auxiliary device during the back-pulling process, ensuring the stability of the pipeline during the back-pulling process, and avoiding the problem of possible wear of the pipeline due to direct contact with the ground, playing a role of supporting and reducing friction. During use, the rollers need to be replaced according to different pipe diameters, which is inconvenient to operate, and no clamping mechanism is provided, so it is impossible to apply external force to the dragging pipe and help it move, and the practicality is low.

[0004] To this end, the utility model provides a towing tube back-pulling auxiliary device. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a towing tube towing auxiliary device to solve the problems raised in the above-mentioned background technology. The utility model is provided with a roller, which does not need to be replaced according to the size of the tube diameter, thereby facilitating the movement of the towing tube. At the same time, the towing tube can be clamped and external force can be applied through the provided driving mechanism and clamping mechanism, thereby helping the towing tube to move, and the utility model is highly practical.

[0006] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: a towing tube back-pulling auxiliary device, including a base, an adjusting plate is arranged on the top of the base through an adjusting mechanism, the right side view shape of the adjusting plate is "U"-shaped, and rollers are equidistantly rotated on the bottom of the inner side of the adjusting plate, and a clamping mechanism is arranged on the inner side of both ends of the adjusting plate through a driving mechanism, and the driving mechanism includes a slide groove, and a screw rod is installed on the internal limit rotation of the slide groove, and a slide plate is movably installed on the inside of the slide groove through the screw rod, and an extrusion plate is movably arranged on one side of the slide plate through a second hydraulic cylinder, and an arc groove is arranged on one side of the extrusion plate, and the adjusting mechanism includes a support rod and a first hydraulic cylinder.

[0007] Furthermore, the slide grooves are symmetrically arranged inside the two ends of the adjustment plate, and a limiting groove is arranged at the bottom of the inner side of the slide groove.

[0008] Furthermore, the shape of the slide plate is "L"-shaped, one end of the slide plate is screwed onto the screw rod through a screw hole, and a limit slider is fixedly provided at the bottom of one end of the slide plate.

[0009] Furthermore, the limiting sliding block is slidably installed inside the limiting groove, and the second hydraulic cylinder is fixedly arranged on one side of the top end of the sliding plate.

[0010] Furthermore, the output rod of the second hydraulic cylinder is fixedly connected to the extrusion plate, and a rubber protrusion is provided on the inner wall of the arc-shaped groove.

[0011] Furthermore, servo motors are symmetrically fixedly installed on both sides of one end of the adjustment plate, and the output shaft of the servo motor is fixedly connected to one end of the screw rod.

[0012] Furthermore, the support rods are symmetrically fixed on both sides of one end of the base, and the top of the support rods is movably connected to the bottom of the adjustment plate via a pivot.

[0013] Furthermore, the bottom end of the first hydraulic cylinder is movably mounted on the top of the other end of the base through a pivot, the output rod of the first hydraulic cylinder is movably connected to the other side of the bottom of the adjustment plate through a pivot, and fixing holes are symmetrically opened inside the front and rear ends of the base.

[0014] The beneficial effects of the utility model are as follows: the utility model is a towing pipe towing auxiliary device. By arranging a roller at the bottom of the inner side of the adjusting plate, there is no need to replace the roller according to the size of the pipe diameter, so the towing pipe can be moved conveniently and the operation is convenient. The adjusting plate is driven to rotate on the top of the support rod by the first hydraulic cylinder, so the angle of the adjusting plate and the roller can be adjusted conveniently according to the angle between the towing pipe and the unearthed end and the buried end. The adjusting plate and the roller can contact the towing pipe conveniently to prevent the surface wear of the towing pipe. At the same time, the extrusion plate is driven by the second hydraulic cylinder to clamp the towing pipe. The extrusion plate is driven to move to one side conveniently by the servo motor, the screw rod and the slide plate, so as to apply external force to the towing pipe, thereby helping the towing pipe to move. The utility model is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a towing tube back-dragging auxiliary device of the utility model;

[0016] Figure 2 This is a front cross-sectional view of a towing tube back-pulling auxiliary device of the utility model;

[0017] Figure 3 This is a structural diagram of an extrusion plate and a slide plate of a towing tube back-pulling auxiliary device of the utility model;

[0018] In the figure: 1. base; 2. adjustment plate; 3. support rod; 4. first hydraulic cylinder; 5. fixing hole; 6. slide groove; 7. screw rod; 8. servo motor; 9. slide plate; 10. extrusion plate; 11. roller; 12. second hydraulic cylinder; 13. limit slider; 14. arc groove; 15. rubber protrusion. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] See also Figures 1 to 3The utility model provides a technical solution: a towing pipe back-dragging auxiliary device, comprising a base 1, an adjusting plate 2 is arranged on the top of the base 1 through an adjusting mechanism, the right view shape of the adjusting plate 2 is "U"-shaped, and a roller 11 is equidistantly rotated at the bottom of the inner side of the adjusting plate 2, and a clamping mechanism is arranged on the inner sides of both ends of the adjusting plate 2 through a driving mechanism, and the driving mechanism comprises a slide groove 6, a screw rod 7 is installed on the internal limit rotation of the slide groove 6, a slide plate 9 is movably installed on the inside of the slide groove 6 through the screw rod 7, an extrusion plate 10 is movably arranged on one side of the slide plate 9 through a second hydraulic cylinder 12, and an arc groove 14 is arranged on one side of the extrusion plate 10, and the adjusting mechanism comprises a support rod 3 and a first hydraulic cylinder 4, by arranging a roller 11 on the inner side of the adjusting plate 2 instead of arranging a roller, there is no need to replace the roller according to the size of the pipe diameter, the operation is simple, and the use is convenient, and the friction between the towing pipe and the unearthed end and the entrenched end can be reduced by the roller 11, so as to prevent the surface wear of the towing pipe.

[0021] In this embodiment, the slide groove 6 is symmetrically arranged inside the two ends of the adjustment plate 2, and a limiting groove is arranged at the bottom of the inner side of the slide groove 6. The shape of the slide plate 9 is "L"-shaped, and one end of the slide plate 9 is screwed on the screw rod 7 through a screw hole. A limiting slider 13 is fixedly arranged at the bottom of one end of the slide plate 9, and the limiting slider 13 is slidably installed inside the limiting groove. The second hydraulic cylinder 12 is fixedly arranged on one side of the top of the slide plate 9, and the output rod of the second hydraulic cylinder 12 is fixedly connected to the extrusion plate 10. A rubber protrusion 15 is arranged on the inner wall of the arc groove 14, and the two sides of one end of the adjustment plate 2 are symmetrical. A servo motor 8 is fixedly installed, and the output shaft of the servo motor 8 is fixedly connected to one end of the screw rod 7. The second hydraulic cylinder 12 drives the extrusion plates 10 to approach each other, so that the dragging tube can be clamped through the arc groove 14 and the rubber protrusion 15. The servo motor 8 drives the slide plate 9 to move inside the slide groove 6 through the screw rod 7, so that the slide plate 9 and the extrusion plate 10 can be used to apply external force to the dragging tube, thereby helping the dragging tube to move. The limit slider 13 and the limit groove can limit the slide plate 9 to improve the stability of the slide plate 9. The friction between the arc groove 14 and the dragging tube can be increased through the rubber protrusion 15, so as to facilitate its movement.

[0022] In this embodiment, the support rod 3 is symmetrically fixed on both sides of one end of the base 1, the top of the support rod 3 is movably connected to the bottom of the adjustment plate 2 through a pivot, the bottom end of the first hydraulic cylinder 4 is movably installed on the top of the other end of the base 1 through a pivot, the output rod of the first hydraulic cylinder 4 is movably connected to the other side of the bottom of the adjustment plate 2 through a pivot, and fixing holes 5 are symmetrically opened inside the front and rear ends of the base 1. The adjustment plate 2 is pushed by the first hydraulic cylinder 4 to facilitate the adjustment of the angle of the adjustment plate 2, so that the towing tube can contact the roller 11, which is convenient for pulling the towing tube back.

[0023] When the towing tube back-hauling auxiliary device is used, the device is placed between the towing tube and the unearthed end and the entrapped end through the base 1, and ground nails are fixedly installed inside the fixing holes 5 to fix the device. According to the angle between the towing tube and the unearthed end and the entrapped end, the first hydraulic cylinder 4 is started, and the first hydraulic cylinder 4 squeezes the adjusting plate 2 through the pivot. The adjusting plate 2 rotates upward at the top of the support rod 3 through the pivot, and the towing tube is brought into contact with the roller 11 to prevent the wear of the towing tube surface. By arranging the roller 11 at the bottom of the inner side of the adjusting plate 2 instead of the roller, there is no need to replace the roller according to the size of the pipe diameter, and the operation is convenient; the squeezing plates 10 are driven to approach each other by the second hydraulic cylinder 12, and the squeezing plates 10 are driven to move toward each other through the arc The groove 14 and the rubber protrusion 15 clamp the drag tube. The rubber protrusion 15 can increase the friction between the arc groove 14 and the drag tube. The servo motor 8 is started, and the servo motor 8 drives the screw 7 to rotate inside the slide groove 6. The screw connection between the screw 7 and the slide plate 9 drives the slide plate 9 to slide inside the slide groove 6. At the same time, the slide plate 9 drives the extrusion plate 10 and the drag tube through the second hydraulic cylinder 12, thereby applying external force to the drag tube, thereby helping the drag tube to move; after the slide plate 9 moves to the top, the extrusion plate 10 is driven to move in the opposite direction through the second hydraulic cylinder 12, and the extrusion plate 10 is separated from the drag tube. The drive mechanism drives the slide plate 9 to slide in the opposite direction inside the slide groove 6, and the clamping and moving operations are repeated, which is highly practical.

[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A towing tube backhaul auxiliary device, comprising a base (1), characterized in that: The top of the base (1) is provided with an adjustment plate (2) through an adjustment mechanism, the right side view of the adjustment plate (2) is in a "U" shape, the bottom of the inner side of the adjustment plate (2) is equidistantly rotatably provided with rollers (11), the inner sides of both ends of the adjustment plate (2) are provided with clamping mechanisms through a driving mechanism, the driving mechanism comprises a slide groove (6), a screw rod (7) is rotatably installed inside the slide groove (6), a slide plate (9) is movably installed inside the slide groove (6) through the screw rod (7), an extrusion plate (10) is movably installed on one side of the slide plate (9) through a second hydraulic cylinder (12), and an arc groove (14) is provided on one side of the extrusion plate (10), and the adjustment mechanism comprises a support rod (3) and a first hydraulic cylinder (4).

2. A towing tube back-pulling auxiliary device according to claim 1, characterized in that: The slide grooves (6) are symmetrically arranged inside the two ends of the adjustment plate (2), and a limiting groove is arranged at the bottom of the inner side of the slide groove (6).

3. A towing tube back-pulling auxiliary device according to claim 2, characterized in that: The slide plate (9) is in an "L" shape. One end of the slide plate (9) is screwed onto the screw rod (7) through a screw hole. A limit slider (13) is fixedly provided at the bottom of one end of the slide plate (9).

4. A towing tube back-pulling auxiliary device according to claim 3, characterized in that: The limiting slide block (13) is slidably mounted inside the limiting groove, and the second hydraulic cylinder (12) is fixedly arranged on one side of the top end of the slide plate (9).

5. A towing tube back-pulling auxiliary device according to claim 4, characterized in that: The output rod of the second hydraulic cylinder (12) is fixedly connected to the extrusion plate (10), and a rubber protrusion (15) is provided on the inner wall of the arc-shaped groove (14).

6. A towing tube back-pulling auxiliary device according to claim 5, characterized in that: A servo motor (8) is symmetrically fixedly mounted on both sides of one end of the adjustment plate (2), and an output shaft of the servo motor (8) is fixedly connected to one end of the screw rod (7).

7. The towing tube back-pulling auxiliary device according to claim 1, characterized in that: The support rod (3) is symmetrically fixedly arranged on both sides of one end of the base (1), and the top of the support rod (3) is movably connected to the bottom of the adjustment plate (2) via a pivot.

8. A towing tube back-pulling auxiliary device according to claim 7, characterized in that: The bottom end of the first hydraulic cylinder (4) is movably mounted on the top of the other end of the base (1) via a pivot, and the output rod of the first hydraulic cylinder (4) is movably connected to the other side of the bottom of the adjustment plate (2) via a pivot, and fixing holes (5) are symmetrically provided inside the front and rear ends of the base (1).

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