A municipal engineering trenchless pipeline horizontal directional drilling expansion device

Abstract

The utility model discloses a municipal works non - excavation pipeline horizontal directional drilling expansion device, including excavation pipeline horizontal directional drilling expansion device body, excavation pipeline horizontal directional drilling expansion device body includes directional drilling main part and the mobile main body of installing at the directional drilling main part bottom, the left side fixed mounting of directional drilling main part has the back -and -forth fixed base. The utility model discloses a series of structure's setting can adjust and fix the inclination angle of two U -shaped positioning seat according to the inclination angle of special pipeline, make can be applicable to the special pipeline of different inclination, improve use flexibility, need not to carry out replacement operation, and can effectively reduce the situation that U -shaped positioning seat self -adaptation rotation influences the positioning in the positioning process, improve the positioning stability, in addition can be on the special pipeline up and down before and after auxiliary positioning, further improve the positioning stability, can effectively reduce the risk that special pipeline deviates before and after in the construction process because of the vibration force.

Description

Technical Field

[0001] This utility model relates to the technical field of trenchless pipeline horizontal directional drilling expansion equipment, and in particular to a trenchless pipeline horizontal directional drilling expansion device for municipal engineering. Background Technology

[0002] In municipal engineering, trenchless horizontal directional drilling (WDD) rigs are widely used. WDD rigs are construction machines that lay various underground utilities without excavating the surface. Trenchless horizontal directional drilling technology is a new construction technology that combines directional drilling technology from the petroleum industry with traditional pipeline construction methods. When working in soil, the WDD expansion device needs to push a dedicated pipeline into the soil. However, due to varying soil conditions and construction requirements, it is difficult for the device to push the dedicated pipeline into the soil at a suitable angle. Therefore, during the pushing process… While user assistance is required for positioning, it can easily lead to injury, reducing safety. To address this, patent application number 202221641532.X discloses a trenchless horizontal directional drilling expansion device for municipal engineering pipelines. The device includes a directional drill body, a fixed block, and a movable body, with the bottom of the directional drill body fixedly connected to the top of the movable body. The device activates a fixed pushing component via a control box. This component pushes and positions the top of the dedicated pipeline pushed by the directional drill body, and then uses a movable positioning component to position the bottom of the dedicated pipeline. This solves the safety hazards associated with user assistance and achieves the desired pushing and positioning effect.

[0003] The aforementioned patent discloses a trenchless horizontal directional drilling expansion device for municipal engineering pipelines. Through the cooperation of a fixed pushing component and a movable positioning component, it can position a dedicated pipeline, solving safety hazards for users during assistance. However, the fixed pushing component and movable positioning component still have the following shortcomings during use: 1. Unsatisfactory positioning stability: The pushing block in the fixed pushing component is mounted on the bottom of the pushing rod via a hinge. After adaptive rotation adjustment according to the inclination angle of the dedicated pipeline, it lacks a fixed structure. Consequently, during construction, vibration and pressure can cause the pushing block to rotate, affecting its positioning stability. Furthermore, it only uses vertical positioning, lacking front-to-back positioning, which poses a risk of the dedicated pipeline shifting under vibration during construction. 2. The movable positioning component uses the inclination of the inclined plate itself to adapt to the inclination of the dedicated pipeline. When the inclination of the dedicated pipeline changes, the inclined plate needs to be replaced, resulting in low flexibility. In light of the above, this application proposes a trenchless horizontal directional drilling expansion device for municipal engineering pipelines. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a trenchless horizontal directional drilling expansion device for municipal engineering pipelines.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A trenchless pipeline horizontal directional drilling expansion device for municipal engineering includes a pipeline horizontal directional drilling expansion device body. The pipeline horizontal directional drilling expansion device body includes a directional drill body and a movable body installed at the bottom of the directional drill body. A U-shaped fixing seat is fixedly installed on the left side of the directional drill body, and a pipeline auxiliary positioning mechanism is fixedly installed on the left side of the U-shaped fixing seat. The auxiliary positioning mechanism is used to assist in positioning a dedicated pipeline. The pipeline auxiliary positioning mechanism includes:

[0007] The U-shaped mounting plate is threaded to the left side of the U-shaped mounting base, and the right inner wall of the U-shaped mounting plate has a mounting hole with the front side open.

[0008] The front, rear, upper, and lower positioning components, which consist of two sets, are used for auxiliary positioning of the pipe and are both located inside the U-shaped mounting plate.

[0009] The electric telescopic pole is embedded and fixed to the top of the U-shaped mounting plate;

[0010] The first angle adjustment and fixing component is fixedly installed between the top of the upper front-rear-up-down positioning component and the bottom of the output shaft of the electric telescopic rod. The electric telescopic rod is used to drive the upper front-rear-up-down positioning component downward.

[0011] The second angle adjustment and fixing component is installed on the inner wall of the rear side of the mounting hole and is fixedly connected to the right side of the front-rear-up-down positioning component below.

[0012] Preferably, the front and rear up and down positioning components include U-shaped positioning seats, with two U-shaped positioning seats symmetrically arranged. Each U-shaped positioning seat contains two positioning plates. Screws are rotatably mounted on the opposite sides of the two positioning plates within the same U-shaped positioning seat. The opposite ends of the two opposing screws extend to the outside of their respective U-shaped positioning seats and are fixedly connected to knobs. Handles are fixedly connected to both sides of each knob. The U-shaped positioning seats are threaded onto the corresponding two screws. This threaded connection allows for positional movement while the screws rotate. Multiple anti-wear balls are embedded in the inner walls of the opposite sides of the two U-shaped positioning seats and the sides of the opposite positioning plates that are close to each other. The anti-wear balls effectively reduce the impact of friction on the normal movement of the special pipeline during positioning. Positioning rods are fixedly connected to the opposite sides of the two opposing positioning plates. The U-shaped positioning seats are slidably mounted on the four corresponding positioning rods, which provide lateral guidance for the corresponding positioning plates.

[0013] Preferably, the first angle adjustment and fixing assembly includes a fixing seat, the bottom end of the output shaft of the electric telescopic rod is fixedly connected to the top of the fixing seat, the bottom of the fixing seat is provided with a spherical groove, a universal ball is movably fitted in the spherical groove, the outside of the universal ball is bonded and covered with a hard rubber sheet, both sides of the hard rubber sheet are in close contact with the first T-shaped clamping bolts, the fixing seat is threaded on the two first T-shaped clamping bolts, and the universal ball can be fixed under the friction between the first T-shaped clamping bolts and the hard rubber sheet, and the bottom of the universal ball is fixedly connected to a connecting seat, the bottom of the connecting seat is fixedly connected to the top of the upper U-shaped positioning seat.

[0014] Preferably, the second angle adjustment and fixing assembly includes a positioning shaft fixedly connected to the inner wall of the rear side of the mounting hole, a rotating seat rotatably sleeved on the positioning shaft, the left side of the rotating seat being fixedly connected to the right side of the lower U-shaped positioning seat, a hard rubber ring fixedly sleeved on the positioning shaft, the rotating seat being movably sleeved on the hard rubber ring, the top and bottom of the hard rubber ring being in close contact with second T-shaped clamping bolts, and the rotating seat being threaded onto two second T-shaped clamping bolts. Under the frictional force between the second T-shaped clamping bolts and the hard rubber ring, the rotating seat can be fixed.

[0015] Preferably, a battery is fixedly connected to the top inner wall of the U-shaped mounting plate, and the battery is electrically connected to the electric telescopic rod, providing power to the electric telescopic rod.

[0016] Preferably, the right side of the U-shaped mounting plate is fixedly connected to three mounting seats. The bottom of the mounting seats is in movable contact with the top of the U-shaped fixing seat. The top of the U-shaped fixing seat has three threaded grooves, and T-bolts are threaded into the threaded grooves. The mounting seats are threaded onto the corresponding T-bolts. The mounting seats and T-bolts achieve a fixed connection between the U-shaped fixing seat and the U-shaped mounting plate. This also facilitates the disassembly and installation of the entire pipeline auxiliary positioning mechanism on other devices after use, improving the flexibility of use.

[0017] Preferably, threaded holes are provided on the front inner wall and the rear inner wall of the U-shaped positioning seat. The threaded holes are threadedly connected to the corresponding screws. The two positioning plates that are opposite to each other are fixedly connected to the side of the first bearing. The inner side of the inner ring of the first bearing is fixedly connected to the outer side of the corresponding screw.

[0018] Compared with existing technologies, the beneficial effects of this utility model are:

[0019] 1. By setting the first angle adjustment fixing component and the second angle adjustment fixing component, the tilt angle of the two U-shaped positioning seats can be adjusted and fixed according to the tilt angle of the special pipeline. The method of fixing after adjustment can effectively reduce the impact of the adaptive rotation of the U-shaped positioning seats on positioning during the positioning process, improve positioning stability, and can be applied to special pipelines with different tilt angles without the need for replacement.

[0020] 2. By cooperating with the electric telescopic rod and the front and rear up and down positioning components, the upper U-shaped positioning seat can be driven to move downward, and the four positioning plates can be driven to move back and forth to assist in the up and down and front and back positioning of the special pipeline, further improving the positioning stability.

[0021] This invention, through a series of structural designs, can adjust and fix the tilt angle of the two U-shaped positioning seats according to the tilt angle of the special pipeline, making it applicable to special pipelines with different tilt angles, improving the flexibility of use, eliminating the need for replacement work, and effectively reducing the impact of the adaptive rotation of the U-shaped positioning seats on positioning during the positioning process, thus improving positioning stability. In addition, it can assist in the vertical and horizontal positioning of the special pipeline, further improving positioning stability, and effectively reducing the risk of the special pipeline shifting forward and backward due to vibration during construction. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a trenchless pipeline horizontal directional drilling expansion device for municipal engineering proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the pipe auxiliary positioning mechanism in a trenchless horizontal directional drilling expansion device for municipal engineering proposed in this utility model.

[0024] Figure 3 for Figure 2 A schematic diagram of the structure viewed from below;

[0025] Figure 4 This is a front sectional view of the connection between the pipeline auxiliary positioning mechanism and the U-shaped fixing seat of a trenchless pipeline horizontal directional drilling expansion device for municipal engineering proposed in this utility model.

[0026] In the diagram: 1. Directional drill body; 2. Moving body; 3. U-shaped fixed seat; 4. Pipe auxiliary positioning mechanism; 401. U-shaped mounting plate; 402. Electric telescopic rod; 403. Fixed seat; 404. Universal ball; 405. First T-shaped clamping bolt; 406. U-shaped positioning seat; 407. Positioning plate; 408. Mounting hole; 409. Rotating seat; 410. Positioning shaft; 411. Second T-shaped clamping bolt; 412. Hard rubber sheet; 413. Battery; 414. Screw; 415. Knob; 416. Anti-wear ball. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Reference Figure 1 A trenchless pipeline horizontal directional drilling expansion device for municipal engineering includes a pipeline horizontal directional drilling expansion device body, which includes a directional drilling body 1 and a movable body 2 installed at the bottom of the directional drilling body 1. A U-shaped fixing seat 3 is fixedly installed on the left side of the directional drilling body 1.

[0029] In this utility model, the existing device application number 202221641532.X discloses a trenchless pipeline horizontal directional drilling expansion device for municipal engineering. The directional drilling body 1 and the moving body 2 in this application document both adopt the same technical means as in this prior art, which will not be described in detail here. Regarding this existing body, this application makes further improvements, and for details, please refer to the disclosed technology below. In order to solve the technical problems existing in this prior art, such as "1. Its positioning stability is not ideal: the push block in the fixed push assembly is rotated and installed at the bottom of the push rod by a hinge, and after adaptive rotation adjustment according to the inclination angle of the special pipeline, The lack of a fixed structure leads to the possibility of the push block rotating due to vibration and compression during construction, thus affecting its positioning stability. In addition, the positioning method is only vertical, lacking front-back positioning. Under the vibration force during construction, the special pipeline is at risk of shifting forward or backward. 2. The movable positioning component uses the inclination of the inclined plate to adapt to the inclination of the special pipeline. When the inclination of the special pipeline changes, the inclined plate needs to be replaced, resulting in low flexibility. In terms of usage, this problem is obviously a real and difficult problem to solve. Therefore, in order to solve this technical problem, a pipeline auxiliary positioning mechanism 4 has been added to this application.

[0030] It should be noted that the technology of using the directional drilling body 1 and the moving body 2 to advance the dedicated pipeline into the soil is a publicly available technology, and the applicant will not elaborate on this technology here.

[0031] Furthermore:

[0032] Reference Figure 1-4 A trenchless pipeline horizontal directional drilling expansion device for municipal engineering also includes a spiral-shaped fixing base 3. A pipeline auxiliary positioning mechanism 4 is fixedly installed on the left side of the spiral-shaped fixing base 3. The pipeline auxiliary positioning mechanism 4 includes:

[0033] The U-shaped mounting plate 401 is threadedly fixed to the left side of the U-shaped fixing seat 3. Three mounting seats are fixedly connected to the right side of the U-shaped mounting plate 401. The bottom of the mounting seats is in movable contact with the top of the U-shaped fixing seat 3. The top of the U-shaped fixing seat 3 has three threaded grooves. T-bolts are threaded in the threaded grooves. The mounting seats are threaded onto the corresponding T-bolts. The U-shaped fixing seat 3 and the U-shaped mounting plate 401 are fixedly connected through the mounting seats and T-bolts. This also makes it convenient to disassemble the entire pipeline auxiliary positioning mechanism 4 and install it on other devices after use, improving the flexibility of use. The inner wall of the right side of the U-shaped mounting plate 401 has a mounting hole 408 with an open front.

[0034] An electric telescopic rod 402 is embedded and fixed on the top of a U-shaped mounting plate 401. A battery 413 is fixedly connected to the inner wall of the top of the U-shaped mounting plate 401. The battery 413 is electrically connected to the electric telescopic rod 402 and provides power to the electric telescopic rod 402.

[0035] The front, rear, upper and lower positioning components, which consist of two sets, are used for auxiliary positioning of the pipe and are both located within the U-shaped mounting plate 401;

[0036] The front-to-back and vertical positioning assembly includes a U-shaped positioning seat 406, with two U-shaped positioning seats 406 symmetrically arranged. Each U-shaped positioning seat 406 contains two positioning plates 407. Screws 414 are rotatably mounted on the opposite sides of the two positioning plates 407 located within the same U-shaped positioning seat 406. A first bearing is fixedly connected to the opposite sides of each of the two opposing positioning plates 407. The inner ring of the first bearing is fixedly connected to the outer side of the corresponding screw 414, allowing the screw 414 to rotate. The opposite ends of the two opposing screws 414 extend to the outside of their respective U-shaped positioning seats 406 and are fixedly connected to knobs 415. Handles are fixedly connected to both sides of each knob 415. The handles and knobs 415 work together to drive the corresponding screws 414 to rotate. The U-shaped positioning seat 406 is threaded onto the two corresponding screws 414. The upper part of the U-shaped positioning seat 406 has threaded holes on its front and rear inner walls. The threaded holes are threaded to the corresponding screws 414. The threaded connection allows the screws 414 to rotate and move in position. Multiple anti-wear balls 416 are embedded on the inner walls of the two U-shaped positioning seats 406 on the side away from each other and on the side of the two front and rear opposite positioning plates 407 on the side close to each other. The anti-wear balls 416 can effectively reduce the impact of friction on the normal movement of the special pipeline during the positioning process. Positioning rods are fixedly connected to the side of the two front and rear opposite positioning plates 407 on the side away from each other. The U-shaped positioning seat 406 is slidably sleeved on the four corresponding positioning rods. The front and rear inner walls of the U-shaped positioning seat 406 have two positioning holes. The inner walls of the positioning holes are in contact with the outer sides of the corresponding positioning rods. The positioning rods provide a lateral guiding effect for the corresponding positioning plates 407.

[0037] In this embodiment, when the electric telescopic rod 402 drives the upper U-shaped positioning seat 406 to move downward, the electric telescopic rod 402 stops when all the anti-wear balls 416 on the upper U-shaped positioning seat 406 are in contact with the top of the special pipe. Then, the electric telescopic rod 402 stops. Next, the corresponding knob 415 is rotated clockwise by the handle. The knob 415 drives the corresponding screw 414 to rotate. The screw 414 rotates in the corresponding threaded hole and moves towards the special pipe. The screw 414 drives the corresponding positioning plate 407 to move towards the special pipe. When all the anti-wear balls 416 on the positioning plate 407 are in contact with the special pipe, the knob 415 stops rotating. After all four positioning plates 407 are adjusted, the special pipe is positioned front and back by the four positioning plates 407 and vertically by the two U-shaped positioning seats 406. By positioning front and back and vertically at the same time, the positioning stability is further improved.

[0038] Furthermore;

[0039] A trenchless pipeline horizontal directional drilling expansion device for municipal engineering also includes: a first angle adjustment and fixing component and a second angle adjustment and fixing component;

[0040] The first angle adjustment and fixing assembly is fixedly installed between the top of the upper U-shaped positioning seat 406 and the bottom end of the output shaft of the electric telescopic rod 402. The first angle adjustment and fixing assembly includes a fixing seat 403. The bottom end of the output shaft of the electric telescopic rod 402 is fixedly connected to the top of the fixing seat 403. A spherical groove is opened at the bottom of the fixing seat 403, and a universal ball 404 is movably fitted in the spherical groove. The outside of the universal ball 404 is bonded and covered with a hard rubber sheet 412. Both sides of the hard rubber sheet 412 are in close contact with the first T-shaped clamping bolts 405. The fixing seat 403 is threaded. The ball joint 404 is fixedly mounted on two first T-shaped clamping bolts 405. Each of the inner walls of the spherical groove has a first bolt hole. The first bolt hole is threadedly connected to the corresponding first T-shaped clamping bolt 405. The first T-shaped clamping bolt 405 rotates in the corresponding first bolt hole and moves laterally. Under the friction between the first T-shaped clamping bolt 405 and the hard rubber sheet 412, the universal ball 404 can be fixedly fixed. The bottom of the universal ball 404 is fixedly connected to a connecting seat. The bottom of the connecting seat is fixedly connected to the top of the upper U-shaped positioning seat 406.

[0041] The second angle adjustment and fixing assembly is installed on the rear inner wall of the mounting hole 408. The second angle adjustment and fixing assembly includes a positioning shaft 410 fixedly connected to the rear inner wall of the mounting hole 408. A rotating seat 409 is rotatably sleeved on the positioning shaft 410. A circular hole is opened on the front side of the rotating seat 409, and two second bearings are fixedly sleeved inside the circular hole. The inner ring of the second bearing is fixedly connected to the outer side of the positioning shaft 410. The second bearings serve to rotate the rotating seat 409. The left side of the rotating seat 409 is fixedly connected to the right side of the lower U-shaped positioning seat 406. A rigid... The inner wall of the circular hole of the rigid rubber ring is in contact with the outer side of the rigid rubber ring. The top and bottom of the rigid rubber ring are in close contact with the second T-shaped clamping bolts 411. The rotating seat 409 is threaded on the two second T-shaped clamping bolts 411. The inner wall of the top and bottom of the circular hole is provided with second bolt holes. The second bolt holes are threadedly connected to the corresponding second T-shaped clamping bolts 411. The second T-shaped clamping bolts 411 rotate in the corresponding second bolt holes and move vertically. Under the action of friction between the second T-shaped clamping bolts 411 and the rigid rubber ring, the rotating seat 409 can be fixed.

[0042] In this embodiment, when adjusting the tilt angle of the two U-shaped positioning seats 406 according to the tilt angle of the special pipeline during construction, the two first T-shaped clamping bolts 405 and the two second T-shaped clamping bolts 411 are rotated in the opposite direction. As the first T-shaped clamping bolts 405 rotate, they separate from the hard rubber sheet 412, releasing the fixation on the universal ball 404, thereby releasing the fixation on the upper U-shaped positioning seat 406. As the second T-shaped clamping bolts 411 rotate, they separate from the hard rubber ring, releasing the fixation on the rotating seat 409, thereby releasing the fixation on the lower U-shaped positioning seat 406. Then, the two U-shaped positioning seats 406 are rotated. When the upper U-shaped positioning seat 406 rotates to a tilt angle level with the tilt angle of the special pipeline, multiple anti-locking devices on the lower U-shaped positioning seat 406... When the grinding balls are in contact with the bottom of the special pipe, the rotation of the two U-shaped positioning seats 406 stops. Then, the two first T-shaped clamping bolts 405 and the two second T-shaped clamping bolts 411 are rotated in the forward direction to move them into close contact with the outer side of the hard rubber sheet 412 and the outer side of the hard rubber ring, respectively. By utilizing their friction, the universal ball 404 and the rotating seat 409 can be fixed, thereby fixing the two U-shaped positioning seats 406. The method of fixing the U-shaped positioning seats 406 after adjustment can effectively reduce the impact of the adaptive rotation of the U-shaped positioning seats 406 on positioning during the positioning process, improve positioning stability, and the adjustable tilt angle of the lower U-shaped positioning seats 406 makes it suitable for special pipes with different inclinations without the need for replacement.

[0043] Working Principle: During use, when the directional drilling body 1 transmits the special pipeline sequentially through the U-shaped fixing seat 3 and the mounting hole 408 into the U-shaped mounting plate 401, the transmission of the special pipeline is stopped. Then, according to the inclination angle of the special pipeline during construction, the inclination angle of the two U-shaped positioning seats 406 is adjusted. While adjusting the inclination angle of the U-shaped positioning seats 406, the two first T-shaped clamping bolts 405 and the two second T-shaped clamping bolts 411 are rotated in the opposite direction. As the first T-shaped clamping bolts 405 rotate, they separate from the hard rubber 412, releasing the fixation to the universal ball 404, thereby releasing the fixation to the upper U-shaped positioning seat 406. As the second T-shaped clamping bolts 411 rotate, they separate from the hard rubber ring, releasing the fixation to the rotating seat 409, thereby releasing the fixation to the lower U-shaped positioning seat 406. Then, the two U-shaped positioning seats 406 are rotated, and the upper U-shaped positioning seat 406 rotates to... When the tilt angle is horizontal with the tilt angle of the special pipeline, and multiple anti-wear balls on the lower U-shaped positioning seat 406 are in contact with the bottom of the special pipeline, the rotation of the two U-shaped positioning seats 406 stops. Then, the two first T-shaped clamping bolts 405 and the two second T-shaped clamping bolts 411 are rotated in the forward direction to move them into close contact with the outer side of the hard rubber sheet 412 and the outer side of the hard rubber ring, respectively. By utilizing their friction, the universal ball 404 and the rotating seat 409 can be fixed, thereby fixing the two U-shaped positioning seats 406. The method of fixing the U-shaped positioning seats 406 after adjustment can effectively reduce the impact of the adaptive rotation of the U-shaped positioning seats 406 on positioning during the positioning process, improve positioning stability, and the adjustable tilt angle of the lower U-shaped positioning seat 406 makes it suitable for special pipelines with different tilt angles without the need for replacement, thus improving the flexibility of use.

[0044] After adjustment, the electric telescopic rod 402 is opened in the forward direction. The output shaft of the electric telescopic rod 402 drives the upper U-shaped positioning seat 406 to move downward through the fixed seat 403, the universal ball 404, and the connecting seat. When the multiple anti-wear balls 416 on the upper U-shaped positioning seat 406 are in active contact with the top of the special pipe, the electric telescopic rod 402 stops. Then, the corresponding knob 415 is turned in the forward direction by the handle. The knob 415 drives the corresponding screw 414 to rotate. The screw 414 rotates in the corresponding threaded hole and moves towards the direction of the special pipe. As the screw 414 moves, it drives the corresponding positioning plate 407 to move closer to the dedicated pipeline. When all the anti-wear balls 416 on the positioning plate 407 are in contact with the dedicated pipeline, the knob 415 stops turning. After all four positioning plates 407 are adjusted, the dedicated pipeline is positioned front and back by the four positioning plates 407 and up and down by the two U-shaped positioning seats 406. By positioning front and back and up and down simultaneously, the positioning stability is further improved, which can effectively reduce the risk of the dedicated pipeline shifting back and forth due to vibration during construction.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A trenchless pipeline horizontal directional drilling expansion device for municipal engineering, comprising a trenching pipeline horizontal directional drilling expansion device body, wherein the trenching pipeline horizontal directional drilling expansion device body includes a directional drilling body (1) and a movable body (2) installed at the bottom of the directional drilling body (1), characterized in that, A U-shaped fixing seat (3) is fixedly installed on the left side of the directional drilling body (1), and a pipeline auxiliary positioning mechanism (4) is fixedly installed on the left side of the U-shaped fixing seat (3). The pipeline auxiliary positioning mechanism (4) includes: The U-shaped mounting plate (401) is threaded to the left side of the U-shaped fixing seat (3), and the right inner wall of the U-shaped mounting plate (401) has a mounting hole (408) with the front side open. The front and rear, upper and lower positioning components are in two sets, used for auxiliary positioning of the pipe, and are both located inside the U-shaped mounting plate (401); An electric telescopic pole (402) is embedded and fixed to the top of a U-shaped mounting plate (401); The first angle adjustment and fixing component is fixedly installed between the top of the upper front and rear upper and lower positioning components and the bottom of the output shaft of the electric telescopic rod (402); The second angle adjustment and fixing component is installed on the rear inner wall of the mounting hole (408) and is fixedly connected to the right side of the front-rear-up-down positioning component below.

2. The trenchless pipeline horizontal directional drilling expansion device for municipal engineering according to claim 1, characterized in that, The front-to-back and vertical positioning components include U-shaped positioning seats (406), with two U-shaped positioning seats (406) arranged symmetrically. Two positioning plates (407) are provided inside each U-shaped positioning seat (406). Screws (414) are rotatably mounted on the opposite sides of the two positioning plates (407) located within the same U-shaped positioning seat (406). The opposite ends of the two screws (414) extend to the outside of their respective U-shaped positioning seats (406) and are fixedly connected to knobs (415). Both sides of the knob (415) are fixedly connected to handles. The U-shaped positioning seat (406) is threaded onto the corresponding two screws (414). Multiple anti-wear balls (416) are embedded in the inner wall of the two U-shaped positioning seats (406) on the side away from each other and the side of the two front and rear opposite positioning plates (407) on the side close to each other. Positioning rods are fixedly connected to the two front and rear opposite positioning plates (407) on the side away from each other. The U-shaped positioning seat (406) is slidably fitted onto the corresponding four positioning rods.

3. A trenchless pipeline horizontal directional drilling expansion device for municipal engineering according to claim 2, characterized in that, The first angle adjustment fixing assembly includes a fixing seat (403), the bottom end of the output shaft of the electric telescopic rod (402) is fixedly connected to the top of the fixing seat (403), the bottom of the fixing seat (403) is provided with a spherical groove, a universal ball (404) is movably sleeved in the spherical groove, the outside of the universal ball (404) is covered with a hard rubber sheet (412), both sides of the hard rubber sheet (412) are in close contact with the first T-shaped clamping bolts (405), the fixing seat (403) is threaded on the two first T-shaped clamping bolts (405), the bottom of the universal ball (404) is fixedly connected to a connecting seat, and the bottom of the connecting seat is fixedly connected to the top of the upper U-shaped positioning seat (406).

4. A trenchless pipeline horizontal directional drilling expansion device for municipal engineering according to claim 2, characterized in that, The second angle adjustment fixing assembly includes a positioning shaft (410) fixedly connected to the inner wall of the rear side of the mounting hole (408). A rotating seat (409) is rotatably sleeved on the positioning shaft (410). The left side of the rotating seat (409) is fixedly connected to the right side of the U-shaped positioning seat (406) below. A hard rubber ring is fixedly sleeved on the positioning shaft (410). The rotating seat (409) is movably sleeved on the hard rubber ring. The top and bottom of the hard rubber ring are in close contact with the second T-shaped clamping bolts (411). The rotating seat (409) is threaded onto the two second T-shaped clamping bolts (411).

5. A trenchless pipeline horizontal directional drilling expansion device for municipal engineering according to claim 1, characterized in that, A battery (413) is fixedly connected to the top inner wall of the U-shaped mounting plate (401), and the battery (413) is electrically connected to the electric telescopic rod (402).

6. A trenchless pipeline horizontal directional drilling expansion device for municipal engineering according to claim 1, characterized in that, The right side of the U-shaped mounting plate (401) is fixedly connected with three mounting seats. The bottom of the mounting seats is in movable contact with the top of the U-shaped fixing seat (3). The top of the U-shaped fixing seat (3) has three threaded grooves. T-bolts are threaded in the threaded grooves, and the mounting seats are threaded on the corresponding T-bolts.

7. A trenchless pipeline horizontal directional drilling expansion device for municipal engineering according to claim 2, characterized in that, The U-shaped positioning seat (406) has threaded holes on its front inner wall and rear inner wall. The threaded holes are threadedly connected to the corresponding screw (414). The two positioning plates (407) that are opposite to each other are fixedly connected to the side of the first bearing. The inner ring of the first bearing is fixedly connected to the outer side of the corresponding screw (414).

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