Gas pipe network engineering directional crossing device

Abstract

The invention discloses a gas pipe network engineering directional crossing device, which relates to the technical field of pipeline crossing auxiliary devices and comprises a base, boosting hydraulic cylinders symmetrically arranged at the top of the base and semicircular pipeline covers fixedly connected to the output ends of the boosting hydraulic cylinders. The supporting beam is designed on the connecting base, the boosting hydraulic cylinder is installed on the supporting beam, when the pipeline is pulled back, the boosting hydraulic cylinder drives the semicircular pipeline cover to move, so that the gas pipeline fixed in the semicircular pipeline cover is pushed to move, the back-pushing force acts on the supporting beam, and the gas pipeline is fixed to the interior of the semicircular pipeline cover. A supporting beam is supported through a supporting structure formed by a first supporting sleeve, a second supporting sleeve, a third supporting sleeve, a supporting rod and a supporting plate, and the mode that pulling back force borne by a propeller located at the bottom of a pipeline traditionally can only be borne by an anchor rod is changed into the mode that the anchor rod and the supporting structure support; and the reverse pull-back force which can be borne when the propeller propels the pipeline is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline crossing auxiliary devices, and in particular to a directional crossing device for a gas pipeline network project. Background Art

[0002] Directional crossing of gas pipeline network is a trenchless construction technology used to lay gas pipelines underground to avoid damage to ground transportation, buildings and other infrastructure. The principle is roughly as follows: Directional drilling construction is to use a directional drilling rig to drill a guide hole according to the designed drilling trajectory, then expand the guide hole to the required pipe diameter, and finally pull the gas pipeline back along the expanded guide hole to complete the laying of the pipeline. When the gas pipeline is pulled back along the expanded guide hole, as the weight of the pipeline increases and it is difficult to pull it with the drilling rig alone, a pipeline thruster is needed to boost the pipeline at this end to help the pipeline smoothly pass through the guide hole and return to the starting position of the drilling.

[0003] At present, the publication number is CN103574159B, a pipeline propulsion machine, which uses a push-pull hydraulic cylinder to drive the clamping mechanism to drive the pipeline forward, increases the construction length of horizontal directional drilling and the adaptability to complex formations, and expands the application scope of horizontal directional drilling.

[0004] This type of thruster is also the most commonly used thruster on the market. Although it can achieve the purpose of advancing the pipeline, there are still certain shortcomings when using it. For example, during use, the thruster is generally placed at the bottom of the pipeline, and the clamping mechanism of the pushing machine is consistent with the direction of the pipeline. Generally, the gas pipeline has a certain inclination angle when entering the guide hole. When the pipeline is subjected to push and pull forces, the corresponding clamping mechanism of the thruster will be subjected to a reverse lifting force, and this reverse lifting force is generally obliquely upward. At present, this type of thruster generally inserts anchor rods on the base to limit and fix the thruster. However, if the pipeline has a large diameter and a long length, as the pipeline enters the guide hole, the propulsion force of the pipeline will increase accordingly, and the reverse force received by the thruster will also increase accordingly. When traditional thrusters advance the pipeline, it is easy for displacement or abnormal posture changes such as tilting to occur due to the oblique upward reverse lifting force, causing the propulsion of the pipeline to be affected. Summary of the invention

[0005] The purpose of the present invention is to provide a directional crossing device for a gas pipeline network project to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solution: comprising a base, a booster hydraulic cylinder symmetrically arranged on the top of the base, and a semicircular pipe cover fixedly connected to the output end of the booster hydraulic cylinder, wherein a connecting seat is symmetrically arranged on the top of the base; A support beam is provided at the top of the connection seat. A fixed seat movably connected to the support beam is provided on the surface of the boosting hydraulic cylinder. A first support sleeve is provided on one side of the support beam. A second support sleeve is movably connected inside the first support sleeve. A third support sleeve is movably connected inside the second support sleeve. A support rod is movably connected inside the third support sleeve. A support plate is provided at one end of the support rod away from the third support sleeve.

[0007] In a further embodiment, a limit seat hinged to the support beam is fixedly connected to the top of the connection seat. A receiving groove is formed on one side of the support beam. One end of the first support sleeve is hinged inside the receiving groove through a hinge member. A first hydraulic cylinder is hinged between the connection seat and the support beam through a hinge member. A second hydraulic cylinder is hinged between the support beam and the boosting hydraulic cylinder.

[0008] In a further embodiment, a cavity is formed inside the base. A lead screw is rotatably connected inside the cavity. Movable blocks are symmetrically screwed on the surface of the lead screw. Sliding rods fixedly connected to the base are fixedly connected to both ends of the movable blocks. One end of the sliding rod penetrates to the outside of the base and is fixedly connected to the connection seat. A transmission mechanism is provided inside the cavity.

[0009] In a further embodiment, the transmission mechanism includes a first bevel gear, a second bevel gear and a rotating rod. The first bevel gear is located between the two movable blocks and is fixedly sleeved on the lead screw. The rotating rod rotates on the top of the base and one end of the rotating rod penetrates to the inside of the cavity and is fixedly sleeved with the second bevel gear. The second bevel gear meshes with the first bevel gear.

[0010] In a further embodiment, a rotating disk is fixedly sleeved at one end of the rotating rod on the top of the base. Guide rods are fixedly connected to opposite sides of the two connection seats. The guide rods are slidably connected to the base.

[0011] In a further embodiment, pile holes are formed on the top of the base and the top of the support plate. The pile holes on the top of the base are respectively designed at the four corners of the top of the base. The pile holes on the top of the support plate are symmetrically designed.

[0012] In a further embodiment, pressing plates are symmetrically provided inside the semi-circular pipe cover. Anti-slip rubber pads are assembled on the side of the pressing plates away from the semi-circular pipe cover. Adjusting hydraulic cylinders are symmetrically fixedly connected to the outer surface of the semi-circular pipe cover. The output ends of the adjusting hydraulic cylinders penetrate to the inside of the semi-circular pipe cover and are fixedly connected to the pressing plates.

[0013] In a further embodiment, limiting slide rods are symmetrically fixedly connected to the side of the pressing plates close to the semi-circular pipe cover. The limiting slide rods are slidably connected to the semi-circular pipe cover. The two semi-circular pipe covers are bolted and nutted together.

[0014] The surfaces of the second support sleeve, the third support sleeve and the support rod are all provided with limiting guide blocks, and the interiors of the first support sleeve, the second support sleeve and the third support sleeve are all provided with limiting guide grooves which are slidably connected with the limiting guide blocks.

[0015] The surfaces of the first support sleeve, the second support sleeve, the third support sleeve and the support rod are respectively provided with a first limiting hole and a second limiting hole, and limiting bolts are screwed on the surfaces of the first support sleeve, the second support sleeve and the third support sleeve.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the present invention, a support beam is designed on the connecting seat, and the boosting hydraulic cylinder is installed on the support beam. When the pipeline is pulled back, the boosting hydraulic cylinder drives the semi-circular pipeline cover to move, so that the gas pipeline fixed inside the semi-circular pipeline cover is subjected to a thrust force to move. The back thrust force acts on the support beam, and the support beam is supported by the top support structure formed by the first support sleeve, the second support sleeve, the third support sleeve, the support rod and the support plate. The back pulling force borne by the traditional thruster at the bottom of the pipeline can only be borne by the anchor rod is changed to be supported by the anchor rod and the top support structure, further improving the reverse back pulling force that the thruster can bear when pushing the pipeline, and improving the stability of the gas pipeline propulsion.

[0017] 2. In the present invention, a first hydraulic cylinder is designed between the connecting seat and the support beam, and a second hydraulic cylinder is designed between the support beam and the propulsion hydraulic cylinder, so that the support beam can be flipped around the hinge joint with the connecting seat as the axis, and the boosting hydraulic cylinder can be flipped around the movable part with the support beam. After the first support sleeve, the second support sleeve, the third support sleeve and the support rod are retracted and placed in the storage groove on the support beam, the whole device can be folded, reducing the space occupied by the whole device and facilitating the transportation of the thruster. Brief Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of an embodiment of the present invention; Figure 2 is a schematic structural diagram of a part of an embodiment of the present invention; Figure 3 is a cross-sectional view of the base of an embodiment of the present invention; Figure 4 is an exploded structural diagram of a part of an embodiment of the present invention; Figure 5 is a schematic structural diagram of the first support sleeve of an embodiment of the present invention; Figure 6 is an embodiment of the present invention Figure 3 Enlarged view at A in; Figure 7Schematic diagram of the structural storage of the embodiment of the present invention.

[0019] In the figure: 1, base; 2, boost hydraulic cylinder; 3, semi-circular pipe cover; 4, connecting seat; 5, support beam; 6, fixed seat; 7, first support sleeve; 8, second support sleeve; 9, third support sleeve; 10, support rod; 11, support plate; 12, limit seat; 13, storage groove; 14, first hydraulic cylinder; 15, second hydraulic cylinder; 16, cavity; 17, lead screw; 18, moving block; 19, sliding rod; 20, transmission mechanism; 2001, first bevel gear; 2002, second bevel gear; 2003, rotating rod; 21, rotating disk; 22, guide rod; 23, pile hole; 24, pressing plate; 25, anti-slip rubber pad; 26, position-adjusting hydraulic cylinder; 27, limit slide rod; 28, limit guide block; 29, limit guide groove; 30, first limit hole; 31, second limit hole; 32, limit bolt. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0021] A directional crossing device for a gas pipeline network project includes a base 1, boost hydraulic cylinders 2 symmetrically arranged on the top of the base 1, and a semi-circular pipe cover 3 fixedly connected to the output end of the boost hydraulic cylinder 2. Connecting seats 4 are symmetrically arranged on the top of the base 1. As Figure 1 , Figure 2 , Figure 3 and Figure 7 shown, in this application, the base 1 is used for the installation and fixation of the overall structure. The boost hydraulic cylinders 2 are located on the top of the base 1. The boost hydraulic cylinders 2 are used to drive the movement of the semi-circular pipe cover 3. The number of semi-circular pipe covers 3 is two. When the two semi-circular pipe covers 3 are buckled, the gas pipeline can be wrapped inside.

[0022] Preferably, a cavity 16 is formed inside the base 1. A lead screw 17 is rotatably connected inside the cavity 16. Moving blocks 18 are symmetrically screwed onto the surface of the lead screw 17. Sliding rods 19 fixedly connected to both ends of the moving blocks 18 are slidably connected to the base 1. One end of the sliding rod 19 penetrates to the outside of the base 1 and is fixedly connected to the connecting seat 4. A transmission mechanism 20 is arranged inside the cavity 16. The transmission mechanism 20 includes a first bevel gear 2001, a second bevel gear 2002 and a rotating rod 2003. The first bevel gear 2001 is located between the two moving blocks 18 and is fixedly sleeved on the lead screw 17. The rotating rod 2003 rotates on the top of the base 1 and one end of the rotating rod 2003 penetrates to the inside of the cavity 16 and is fixedly sleeved with the second bevel gear 2002. The second bevel gear 2002 meshes with the first bevel gear 2001. A rotating disc 21 is fixedly sleeved on the end of the rotating rod 2003 located on the top of the base 1. Guide rods 22 are fixedly connected to the opposite sides of the two connecting seats 4. The guide rods 22 are slidably connected to the base 1. As Figure 3 and Figure 6 shown, the lead screw 17 is designed in the cavity 16 inside the base 1. The two moving blocks 18 are located on the surface of the lead screw 17 and are screwed in opposition. One end of the sliding rod 19 is fixed on the connecting seat 4, and the other end of the sliding rod 19 is fixed on the moving block 18. The sliding rod 19 is slidably connected to the base 1. When the lead screw 17 rotates, it can drive the moving block 18 to move on the surface of the lead screw 17 under the action of the sliding rod 19. The movement of the moving block 18 drives the sliding rod 19 to move, and the sliding rod 19 drives the connecting seat 4 to move, achieving the purpose of adjusting the distance between the two connecting seats 4. The first gear is installed on the lead screw 17, and the second gear is installed on the rotating rod 2003. The rotating rod 2003 is preferably rotatably connected to the base 1 by a bearing. When the rotating disc 21 on the top of the base 1 rotates, it can drive the rotating rod 2003 to rotate, thereby driving the second bevel gear 2002 to rotate. The second bevel gear 2002 drives the engaged first bevel gear 2001 to rotate, achieving the purpose of driving the lead screw 17 to rotate.

[0023] Further, pressing plates 24 are symmetrically arranged inside the semi-circular pipe cover 3. An anti-slip rubber pad 25 is assembled on the side of the pressing plate 24 away from the semi-circular pipe cover 3. Adjusting hydraulic cylinders 26 are symmetrically and fixedly connected to the outer surface of the semi-circular pipe cover 3. The output ends of the adjusting hydraulic cylinders 26 penetrate to the inside of the semi-circular pipe cover 3 and are fixedly connected to the pressing plates 24. Limiting slide rods 27 are symmetrically and fixedly connected to the side of the pressing plate 24 close to the semi-circular pipe cover 3. The limiting slide rods 27 are slidably connected to the semi-circular pipe cover 3. The two semi-circular pipe covers 3 are bolted and nut-connected. As Figure 1 、 Figure 2 and Figure 7As shown in the figure, the pressing plate 24 is inside the semi-circular pipe cover 3, and the number of pressing plates 24 inside each semi-circular pipe cover 3 is two. The anti-slip rubber pad 25 is on the side of the pressing plate 24 away from the semi-circular pipe cover 3, used to contact the surface of the gas pipeline, improve the friction between the pressing plate 24 and the gas pipeline, and prevent the pressing plate 24 from wearing the surface of the gas pipeline. The position-adjusting hydraulic cylinder 26 is outside the semi-circular pipe cover 3, and its number is the same as that of the pressing plate 24. The position-adjusting hydraulic cylinder 26 is fixedly connected to the surface of the semi-circular pipe cover 3, and the output end of the position-adjusting hydraulic cylinder 26 penetrates into the inside of the semi-circular pipe cover 3 and is fixed to the pressing plate 24. When the two semi-circular pipe covers 3 are buckled to wrap the gas pipeline, at the outer ears of the two semi-circular pipe covers 3, the two semi-circular pipe covers 3 are fixed together through external bolts and nuts to prevent separation. After fixation, when the output end of the position-adjusting hydraulic cylinder 26 moves, it can drive the anti-slip rubber pad 25 on the pressing plate 24 to move, so that it contacts the surface of the gas pipeline, achieving the purpose of limiting and fixing the gas pipeline. The limit slide bar 27 is on the pressing plate 24, and the limit slide bar 27 is slidably connected to the semi-circular pipe cover 3. When the position-adjusting hydraulic cylinder 26 drives the limit slide bar 27 to move, it can limit the movement of the pressing plate 24 to prevent the pressing plate 24 from shifting.

[0024] A support beam 5 is provided at the top of the connection seat 4. A fixed seat 6 movably connected to the support beam 5 is provided on the surface of the boosting hydraulic cylinder 2. A first support sleeve 7 is provided on one side of the support beam 5. A second support sleeve 8 is movably connected inside the first support sleeve 7. A third support sleeve 9 is movably connected inside the second support sleeve 8. A support rod 10 is movably connected inside the third support sleeve 9. One end of the support rod 10 away from the third support sleeve 9 is provided with a support plate 11, as Figure 1 、 Figure 4 、 Figure 5 and Figure 7As shown, the support beam 5 is designed on top of the connecting seat 4, and the fixed seat 6 is on the surface of the boosting hydraulic cylinder 2. Here, it is preferably that the fixed seat 6 and the boosting hydraulic cylinder 2 are fixedly sleeved to ensure the stability of the fixation between the fixed seat 6 and the boosting hydraulic cylinder 2. The fixed seat 6 and the support beam 5 are preferably hinged, which facilitates the fixed seat 6 to drive the boosting hydraulic cylinder 2 to rotate around the hinge point with the support beam 5 as the axis. The first support sleeve 7 and the second support sleeve 8, the second support sleeve 8 and the third support sleeve 9, and the third support sleeve 9 and the support rod 10 are all preferably slidably sleeved. This design facilitates the second support sleeve 8 to be received into the first support sleeve 7, the third support sleeve 9 to be received into the second support sleeve 8, and the support rod 10 to be received into the third support sleeve 9. The support plate 11 is installed at the end of the support rod 10, and the support plate 11 and the support rod 10 are preferably hinged, which can enable the adjustment of the angle between the support plate 11 and the support rod 10. A top support structure can be formed among the first support sleeve 7, the second support sleeve 8, the third support sleeve 9, and the fourth support rod 10. When the thruster propels the gas pipeline, the reverse thrust acts on the boosting hydraulic cylinder 2, and the boosting hydraulic cylinder 2 transmits the reverse thrust to the support beam 5. Through the top support structure formed by the first support sleeve 7, the second support sleeve 8, the third support sleeve 9, and the fourth support rod 10, one end of this top support structure is on the support beam 5, and the other end is on the support platform on the same plane as the base 1, which can provide a part of the supporting force for the support beam 5. This design changes the situation that the obliquely upward reverse lifting force received by the traditional thruster at the bottom of the pipeline can only be borne by the anchor bolts of the base 1 to being supported by the anchor bolts and the top support structure, improves the reverse pulling force that the thruster can withstand, and avoids the thruster from displacing or having abnormal attitude changes such as tilting up when propelling the pipeline.

[0025] Further, pile holes 23 are provided at the top of both the base 1 and the support plate 11. The pile holes 23 at the top of the base 1 are respectively designed at the four corners of the top of the base 1, and the pile holes 23 at the top of the support plate 11 are symmetrically designed. Limiting guide blocks 28 are provided on the surfaces of the second support sleeve 8, the third support sleeve 9, and the support rod 10. Limiting guide grooves 29 that are slidably connected to the limiting guide blocks 28 are provided inside the first support sleeve 7, the second support sleeve 8, and the third support sleeve 9. First limiting holes 30 and second limiting holes 31 are respectively provided on the surfaces of the first support sleeve 7, the second support sleeve 8, the third support sleeve 9, and the support rod 10. Limiting bolts 32 are screwed on the surfaces of the first support sleeve 7, the second support sleeve 8, and the third support sleeve 9, such as Figure 1 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 7As shown in the figure, the design of the pile holes 23 facilitates the insertion of anchor bolts on the upper surface of the base 1 and the upper surface of the support plate 11. After the anchor bolts are inserted into the pile holes 23 on the upper surface of the base 1 and the upper surface of the support plate 11, the base 1 and the support plate 11 can be limited. The design of the limit guide block 28 and the limit guide groove 29 can facilitate the smooth contraction of the first support sleeve 7, the second support sleeve 8, the third support sleeve 9 and the support rod 10, so that they can be stored together, and can also play a role in limiting and fixing the extension of the first support sleeve 7, the second support sleeve 8, the third support sleeve 9 and the support rod 10. The first limit holes 30 and the second limit holes 31 on the first support sleeve 7, the second support sleeve 8, the third support sleeve 9 and the support rod 10 are used in cooperation with the limit bolts 32. When the second limit hole 31 on the first support sleeve 7 and the first limit hole 30 of the second support sleeve 8 are fastened with the limit bolt 32, the first support sleeve 7 and the second support sleeve 8 are in the extended state. When the first limit hole 30 on the first support sleeve 7 and the first limit hole 30 of the second support sleeve 8 are fastened with the limit bolt 32, it is in the storage state. Similarly, the same operation can be used to expand and store between the third support sleeve 9 and the second support sleeve 8 and between the third support sleeve 9 and the support rod 10.

[0026] The top of the connecting seat 4 is fixedly connected with a limit seat 12 hinged to the support beam 5. A storage groove 13 is opened on one side of the support beam 5. One end of the first support sleeve 7 is hinged inside the storage groove 13 through a hinge. A first hydraulic cylinder 14 is hinged between the connecting seat 4 and the support beam 5 through a hinge. A second hydraulic cylinder 15 is hinged between the support beam 5 and the booster hydraulic cylinder 2. As Figure 1 and Figure 7 shown in the figure, the limit seat 12 is installed on the top of the connecting seat 4, and the limit seat 12 is hinged to the support beam 5. When the connecting seat 4 moves, it can drive the booster hydraulic cylinder 2 and the semi-circular pipe cover 3 installed on the support beam 5 to move. The storage groove 13 is designed on one side of the support beam 5 for storing the first support sleeve 7, the second support sleeve 8, the third support sleeve 9 and the support rod 10 after storage. The first hydraulic cylinder 14 is hinged to the connecting seat 4 and the support beam 5 through a hinge respectively. When the first hydraulic cylinder 14 works, as the output end of the first hydraulic cylinder 14 expands and contracts, the angle of the support beam 5 on the connecting seat 4 can be adjusted. When the output end of the first hydraulic cylinder 14 is at the lowest end, the support beam 5 can be stored on the top of the base 1. The second hydraulic cylinder 15 is hinged between the support beam 5 and the booster hydraulic cylinder 2. When the output end of the second hydraulic cylinder 15 expands and contracts, the angle of the booster hydraulic cylinder 2 on the support beam 5 can be adjusted to facilitate the same angle as the gas pipeline. Similarly, when the output end of the second hydraulic cylinder 15 is at the lowest end, the booster hydraulic cylinder 2 and the semi-circular pipe cover 3 are parallel to the base 1, realizing folding and storage, and the overall structure is folded to reduce the space occupied by the entire device and facilitate the transportation of the thruster.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A directional crossing device for a gas pipeline network project, comprising a base (1), a booster hydraulic cylinder (2) symmetrically arranged on the top of the base (1), and a semicircular pipe cover (3) fixedly connected to the output end of the booster hydraulic cylinder (2), characterized in that: A connecting seat (4) is symmetrically arranged on the top of the base (1); A support beam (5) is arranged on the top of the connecting seat (4), a fixed seat (6) movably connected to the support beam (5) is arranged on the surface of the booster hydraulic cylinder (2), a first support sleeve (7) is arranged on one side of the support beam (5), a second support sleeve (8) is movably connected inside the first support sleeve (7), a third support sleeve (9) is movably connected inside the second support sleeve (8), a support rod (10) is movably connected inside the third support sleeve (9), and a support plate (11) is arranged at one end of the support rod (10) away from the third support sleeve (9).

2. A gas pipeline network engineering directional crossing device according to claim 1, characterized in that: A limit seat (12) is fixedly connected to the top of the connecting seat (4) and is hinged to the support beam (5); a receiving groove (13) is provided on one side of the support beam (5); one end of the first support sleeve (7) is hinged to the inside of the receiving groove (13) via a hinge; a first hydraulic cylinder (14) is hinged between the connecting seat (4) and the support beam (5) via a hinge; and a second hydraulic cylinder (15) is hinged between the support beam (5) and the booster hydraulic cylinder (2).

3. A gas pipeline network engineering directional crossing device according to claim 1, characterized in that: A cavity (16) is provided inside the base (1), a screw rod (17) is rotatably connected inside the cavity (16), a moving block (18) is symmetrically screwed on the surface of the screw rod (17), both ends of the moving block (18) are fixedly connected to a sliding rod (19) slidably connected to the base (1), one end of the sliding rod (19) passes through the outside of the base (1) and is fixedly connected to the connecting seat (4), and a transmission mechanism (20) is provided inside the cavity (16).

4. A gas pipeline network engineering directional crossing device according to claim 3, characterized in that: The transmission mechanism (20) comprises a first bevel gear (2001), a second bevel gear (2002) and a rotating rod (2003); the first bevel gear (2001) is located between two moving blocks (18) and is fixedly sleeved with the screw rod (17); the rotating rod (2003) rotates on the top of the base (1) and one end of the rotating rod (2003) passes through the interior of the cavity (16) and is fixedly sleeved with the second bevel gear (2002); the second bevel gear (2002) is meshed with the first bevel gear (2001).

5. A gas pipeline network engineering directional crossing device according to claim 4, characterized in that: A rotating disk (21) is fixedly sleeved on one end of the rotating rod (2003) located at the top of the base (1), and a guide rod (22) is fixedly connected to the opposite side of the two connecting seats (4), and the guide rod (22) is slidably connected to the base (1).

6. A gas pipeline network engineering directional crossing device according to claim 1, characterized in that: The top of the base (1) and the top of the support plate (11) are both provided with pile holes (23); the pile holes (23) at the top of the base (1) are respectively designed at the four corners of the top of the base (1); and the pile holes (23) at the top of the support plate (11) are symmetrically designed.

7. A gas pipeline network engineering directional crossing device according to claim 1, characterized in that: A pressure plate (24) is symmetrically arranged inside the semicircular duct cover (3), and a non-slip rubber pad (25) is mounted on a side of the pressure plate (24) away from the semicircular duct cover (3). A positioning hydraulic cylinder (26) is symmetrically fixed to the outer surface of the semicircular duct cover (3), and an output end of the positioning hydraulic cylinder (26) passes through the interior of the semicircular duct cover (3) and is fixed to the pressure plate (24).

8. A gas pipeline network engineering directional crossing device according to claim 7, characterized in that: A limiting slide bar (27) is symmetrically fixedly connected to one side of the pressure plate (24) close to the semicircular pipe cover (3); the limiting slide bar (27) is slidably connected to the semicircular pipe cover (3); and the two semicircular pipe covers (3) are bolted together by bolts and nuts.

9. A gas pipeline network engineering directional crossing device according to claim 1, characterized in that: The surfaces of the second support sleeve (8), the third support sleeve (9) and the support rod (10) are all provided with a limiting guide block (28), and the interiors of the first support sleeve (7), the second support sleeve (8) and the third support sleeve (9) are all provided with a limiting guide groove (29) slidably connected to the limiting guide block (28).

10. A gas pipeline network engineering directional crossing device according to claim 1, characterized in that: The surfaces of the first supporting sleeve (7), the second supporting sleeve (8), the third supporting sleeve (9) and the supporting rod (10) are respectively provided with a first limiting hole (30) and a second limiting hole (31), and the surfaces of the first supporting sleeve (7), the second supporting sleeve (8) and the third supporting sleeve (9) are all threadedly connected with a limiting bolt (32).

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