Pipeline non-excavation horizontal drilling device

Abstract

The utility model relates to the technical field of trenchless drilling equipment, and particularly discloses a pipeline trenchless horizontal drilling device which comprises a base, a drilling mechanism is arranged at the top of the base, a sliding groove is formed in the base, a depth limiting mechanism is arranged in the sliding groove, and the depth limiting mechanism comprises an adjusting plate. Scale marks are carved on the two sides of the adjusting plate, a toothed plate is fixedly connected to the top of the adjusting plate, a groove is formed in the position, located above the sliding groove, in the base, a rotating shaft is rotationally connected to the inner wall of the groove, a gear meshed with the toothed plate fixedly sleeves the outer surface of the rotating shaft, and a supporting plate is fixedly connected to one end of the adjusting plate. The top of the supporting plate is fixedly connected with a limiting sleeve; the position of the limiting sleeve can be controlled, so that a worker is assisted in controlling the drilling depth of the drill rod, the deviation of the depth of a hole is avoided, meanwhile, the limiting sleeve can limit the drill rod, the drill rod is prevented from shaking greatly, and the drilling accuracy of equipment is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of trenchless drilling equipment, and in particular relates to a trenchless horizontal drilling device for a pipeline. Background Art

[0002] Trenchless drilling technology refers to a new construction technology that uses various rock and soil drilling equipment and technical means to lay, replace and repair various underground pipelines through guiding and directional drilling, etc., with only a very small part of the surface excavated. During construction, a pit is dug at the construction site, and a pipeline trenchless horizontal drill is used to drill horizontal holes in the side walls of the pit, thereby processing the holes required for laying pipelines.

[0003] In the existing technology, the trenchless horizontal drilling device for pipelines includes a fixed frame placed in a pit and a rotating drive device sliding on the fixed frame. The output end of the rotating drive device is coaxially connected to a horizontally arranged drill rod, and a drill bit is arranged on the end of the drill rod. The drill bit is pressed against the side wall of the pit, the rotating drive device is turned on, and the rotating drive device is slowly pushed toward the side wall of the pit to drive the drill bit into the side wall, thereby forming a hole.

[0004] The above-mentioned prior art solutions have the following defects:

[0005] 1. The equipment is not equipped with a device to control the drilling depth. The depth of the hole is usually determined manually during drilling, which requires high construction experience of the staff and the hole depth is prone to deviation;

[0006] Second, the equipment is not equipped with a device to guide the drill rod. When the driving device drives the drill rod to rotate, the drill rod may vibrate significantly, which will affect the drilling accuracy of the equipment. Utility Model Content

[0007] The utility model aims to provide a trenchless horizontal drilling device for a pipeline, so as to solve the problems in the prior art that the drilling depth of the equipment is prone to deviation and the drill rod may vibrate to a large extent.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A trenchless horizontal drill for a pipeline comprises a base, a drilling mechanism is arranged on the top of the base, a slide groove is arranged inside the base, a depth limiting mechanism is arranged inside the slide groove, the depth limiting mechanism comprises an adjusting plate, scale marks are engraved on both sides of the adjusting plate, a tooth plate is fixedly connected to the top of the adjusting plate, a groove is arranged inside the base and above the slide groove, a rotating shaft is rotatably connected to the inner wall of the groove, a gear meshing with the tooth plate is fixedly sleeved on the outer surface of the rotating shaft, a support plate is fixedly connected to one end of the adjusting plate, and a limiting sleeve is fixedly connected to the top of the support plate.

[0010] Preferably, one end of the rotating shaft passes through the groove and the base in sequence and extends to the outside of the base, and the end of the rotating shaft extending to the outside of the base is fixedly connected to a handle.

[0011] Preferably, the drilling mechanism includes a fixed seat, which is fixedly installed on the top of the base, and a hydraulic cylinder is fixedly installed on the fixed seat. The output end of the hydraulic cylinder is fixedly connected to a slide, and a servo motor is fixedly installed on one side of the slide. The output end of the servo motor passes through the slide and is fixedly connected to a drill rod, and the drill rod is adapted to a limit sleeve.

[0012] Preferably, a rotating sleeve at one end of the drill rod is provided with an abutment sleeve, and one end of the abutment sleeve is fixedly mounted on a side of the slide away from the servo motor.

[0013] Preferably, strip grooves for the sliding plate to slide are provided on the top of the base and on both sides of the hydraulic cylinder.

[0014] Preferably, telescopic legs are fixedly connected to both sides of the bottom of the base.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model can control the position of the limit sleeve by setting a depth limiting mechanism, thereby assisting the staff to control the drilling depth of the drill rod and avoid deviation in the depth of the hole. At the same time, the limit sleeve can limit the drill rod to prevent the drill rod from shaking significantly, thereby improving the drilling accuracy of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is one of the three-dimensional diagrams of the utility model;

[0018] Figure 2 This is the second stereogram of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the base of the utility model;

[0020] Figure 4 It is an enlarged view of point A of the present utility model.

[0021] In the figure:

[0022] 1. Base; 2. Drilling mechanism; 21. Fixed seat; 22. Hydraulic cylinder; 23. Slide plate; 24. Servo motor; 25. Drill rod; 3. Slide groove; 4. Depth limiting mechanism; 41. Adjustment plate; 42. Scale mark; 43. Tooth plate; 44. Gear; 45. Rotating shaft; 46. Groove; 5. Handle; 6. Support plate; 7. Limiting sleeve; 8. Strip groove; 9. Telescopic leg; 10. Abutment sleeve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1-Figure 4 As shown, a trenchless horizontal drill for a pipeline comprises a base 1, a drilling mechanism 2 is arranged on the top of the base 1, and the drilling mechanism 2 is used for drilling holes on the side wall of a pit. A slide groove 3 is opened inside the base 1, and a depth limiting mechanism 4 is arranged inside the slide groove 3. The depth limiting mechanism 4 comprises an adjusting plate 41, and scale marks 42 are engraved on both sides of the adjusting plate 41. A tooth plate 43 is fixedly connected to the top of the adjusting plate 41. A groove 46 is opened inside the base 1 and above the slide groove 3. A rotating shaft 45 is rotatably connected to the inner wall of the groove 46. A gear 44 meshing with the tooth plate 43 is fixedly sleeved on the outer surface of the rotating shaft 45. Rotating the gear 44 can drive the tooth plate 43 to slide, and sliding of the tooth plate 43 can drive the adjusting plate 41 to slide. One end of the adjusting plate 41 is fixedly connected to a support plate 6, and a limiting sleeve 7 is fixedly connected to the top of the support plate 6. The sliding of the adjusting plate 41 can control the position of the limiting sleeve 7, and the maximum drilling depth of the drilling mechanism 2 can be controlled by adjusting the position of the limiting sleeve 7.

[0025] Specifically, one end of the rotating shaft 45 passes through the groove 46 and the base 1 in sequence and extends to the outside of the base 1. The end of the rotating shaft 45 extending to the outside of the base 1 is fixedly connected to the handle 5. The handle 5 is provided with an anti-slip cover to facilitate the staff to rotate the handle 5. By rotating the handle 5, the rotating shaft 45 can be driven to rotate. The rotation of the rotating shaft 45 drives the gear 44 to rotate, thereby driving the adjustment plate 41 to slide.

[0026] More specifically, the drilling mechanism 2 includes a fixed seat 21, which is fixedly installed on the top of the base 1. A hydraulic cylinder 22 is fixedly installed on the fixed seat 21. The output end of the hydraulic cylinder 22 is fixedly connected to a slide plate 23. A servo motor 24 is fixedly installed on one side of the slide plate 23. The output end of the servo motor 24 passes through the slide plate 23 and is fixedly connected to a drill rod 25. The drill rod 25 is adapted to the limiting sleeve 7. A circular hole is provided inside the limiting sleeve 7 for the drill rod 25 to pass through. Driving the servo motor 24 can drive the drill rod 25 to rotate, and at the same time driving the hydraulic cylinder 22 to slowly push the slide plate 23. The slide plate 23 pushes the drill rod 25 to slide, so that the drill rod 25 rotates and slides at the same time, thereby realizing the drilling operation.

[0027] Furthermore, a rotating sleeve 10 is provided at one end of the drill rod 25, and one end of the abutment sleeve 10 is fixedly installed on the side of the slide plate 23 away from the servo motor 24. When the drill rod 25 drills a hole, the abutment sleeve 10 slides with the drill rod 25 and does not rotate with the drill rod 25. When the abutment sleeve 10 reaches the limiting sleeve 7, the abutment sleeve 10 cannot continue to slide through the limiting sleeve 7, and the drill rod 25 cannot continue to slide to drill a hole. The drilling depth of the drill rod 25 can be controlled. At the same time, the limiting sleeve 7 can limit the drill rod 25 to prevent the drill rod 25 from shaking significantly, thereby improving the drilling accuracy of the drill rod 25.

[0028] Furthermore, strip grooves 8 for the sliding plate 23 to slide are provided on the top of the base 1 and on both sides of the hydraulic cylinder 22 to ensure the sliding stability of the sliding plate 23.

[0029] Specifically, telescopic legs 9 are fixedly connected to both sides of the bottom of the base 1, so that the device is suitable for planes of different heights.

[0030] Working principle: when in use, the staff places the equipment on the bottom of the pit, adjusts the drilling depth of the drill rod 25 through the depth limiting mechanism 4, and turns the handle 5. The handle 5 drives the gear 44 to rotate through the rotating shaft 45. The rotation of the gear 44 drives the tooth plate 43 to slide. The sliding of the tooth plate 43 drives the adjusting plate 41 to slide. By observing the scale mark 42, the adjusting plate 41 is slid out of the specified length. The position of the limiting sleeve 7 can be controlled by sliding the adjusting plate 41, so that the sliding distance of the abutment sleeve 10 can be controlled, thereby controlling the drilling depth of the drill rod 25. When the hydraulic cylinder 22 and the servo motor 24 drive the drill rod 25 to perform drilling operations, the abutment sleeve 10 can slide with the drill rod 25. When the abutment sleeve 10 reaches the limiting sleeve 7, the drill rod 25 cannot continue to slide and drill, so the drilling depth of the drill rod 25 can be controlled. At the same time, the limiting sleeve 7 can limit the drill rod 25 to prevent the drill rod 25 from shaking significantly, thereby improving the drilling accuracy of the drill rod 25.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A trenchless horizontal pipe drilling device, comprising a base (1), characterized in that: A drilling mechanism (2) is arranged on the top of the base (1), a slide groove (3) is provided inside the base (1), a depth limiting mechanism (4) is provided inside the slide groove (3), the depth limiting mechanism (4) comprises an adjusting plate (41), both sides of the adjusting plate (41) are engraved with scale marks (42), the top of the adjusting plate (41) is fixedly connected with a tooth plate (43), a groove (46) is provided inside the base (1) and above the slide groove (3), the inner wall of the groove (46) is rotatably connected with a rotating shaft (45), the outer surface of the rotating shaft (45) is fixedly sleeved with a gear (44) meshing with the tooth plate (43), one end of the adjusting plate (41) is fixedly connected with a support plate (6), the top of the support plate (6) is fixedly connected with a limiting sleeve (7).

2. A trenchless horizontal pipe drilling device according to claim 1, characterized in that: One end of the rotating shaft (45) passes through the groove (46) and the base (1) in sequence and extends to the outside of the base (1); the end of the rotating shaft (45) extending to the outside of the base (1) is fixedly connected to a handle (5).

3. The trenchless horizontal drilling device for pipelines according to claim 1, characterized in that: The drilling mechanism (2) comprises a fixed seat (21), the fixed seat (21) is fixedly mounted on the top of the base (1), a hydraulic cylinder (22) is fixedly mounted on the fixed seat (21), an output end of the hydraulic cylinder (22) is fixedly connected to a slide plate (23), a servo motor (24) is fixedly mounted on one side of the slide plate (23), an output end of the servo motor (24) passes through the slide plate (23) and is fixedly connected to a drill rod (25), and the drill rod (25) is adapted to a limit sleeve (7).

4. A trenchless horizontal pipe drilling device according to claim 3, characterized in that: One end of the drill rod (25) is rotatably sleeved with an abutment sleeve (10), and one end of the abutment sleeve (10) is fixedly mounted on a side of the slide plate (23) away from the servo motor (24).

5. The trenchless horizontal drilling device for pipelines according to claim 3, characterized in that: The top of the base (1) and both sides of the hydraulic cylinder (22) are provided with strip grooves (8) for the sliding plate (23) to slide.

6. The trenchless horizontal drilling device for pipelines according to claim 1, characterized in that: Telescopic legs (9) are fixedly connected to both sides of the bottom of the base (1).

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