A drilling overhead slot support

Abstract

This utility model discloses a drilling overhead trough support, comprising a support body with a hollow frame structure. Inside the support body are arranged: a hydraulic device located at the bottom, with a lifting pipe arranged at the upper end of the hydraulic cylinder of the hydraulic device; the lower part of the lifting pipe body has multiple fixing through holes, and its uppermost end has a circular hole, which cooperates with a support connecting pin to rotatably connect and install a support fixing clip at the uppermost end of the lifting pipe body; the upper end of the support fixing clip is fitted into a fixing sleeve of the circulating overhead trough to fix the support and support the overhead trough; and a fixing plate arranged along the cross-section of the support body, with the middle of the fixing plate penetrating to accommodate the lifting pipe body; a fixing pin penetrating through a fixing through hole located above the fixing plate and cooperating with it, so that the lifting pipe is restricted and supported by the fixing plate. This application enables the support to self-adjust its height, and allows for quick, convenient, and safe installation and disassembly, requiring fewer personnel, reducing labor intensity, and saving drilling costs.

Description

Technical Field

[0001] This utility model relates to a drilling overhead slot support. Background Technology

[0002] During drilling operations, mud needs to be circulated. When circulating mud, it is necessary to use a circulation overhead channel to circulate the mud from the wellbore and wellhead to the drilling vibrating screen and mud tank. Because other equipment such as well control choke manifolds need to be installed between the drilling rig and the drilling vibrating screen, the distance between the drilling rig and the drilling vibrating screen is relatively far. Therefore, the length of the circulation overhead channel is also relatively long. In order to ensure that the circulation overhead channel is installed and fixed firmly, a support bracket needs to be installed below the overhead channel.

[0003] Currently, most overhead trough supports are of fixed height and cannot be adjusted. When the installation height of the overhead trough is unsuitable, the height of the supports is adjusted by placing square timber on the ground or digging a foundation to meet the needs of slurry circulation in the overhead trough.

[0004] However, the existing equipment and field application methods have the following drawbacks: First, they increase the labor intensity of employees; second, the use of wooden blocks causes poor stability of the supports and overhead troughs, which is unsafe; digging foundations to adjust the height of the supports is also unsafe, as the foundation is prone to collapse during the rainy season, causing the supports and overhead troughs to lose their support; third, if the height of the wellhead and overhead troughs changes during the replacement of the wellhead equipment in different drilling phases (first, second, and third drilling), a crane must be used to lift the overhead troughs to adjust the height of the supports, which is labor-intensive and costly. Utility Model Content

[0005] The purpose of this utility model is to provide a drilling overhead trench support that solves and compensates for the shortcomings of the current technology, and achieves convenient on-site installation, reliable fixing, resistance to damage, convenient construction, high efficiency, safety and low cost.

[0006] To achieve the above technical objectives, this utility model provides a drilling overhead trough support, comprising: a support body with a hollow frame structure, wherein the support body contains: a hydraulic device located at the bottom, a lifting pipe arranged at the upper end of the hydraulic cylinder of the hydraulic device, the lower part of the lifting pipe body having multiple fixing through holes, and the uppermost part having a circular hole, the circular hole cooperating with a support connecting pin to rotatably connect and install a support fixing clip at the uppermost end of the lifting pipe body, the upper end of the support fixing clip being fitted into a fixing sleeve of the circulating overhead trough to fix the support and support the overhead trough; and a fixing plate arranged along the cross-section of the support body, the middle of the fixing plate penetrating to accommodate the lifting pipe body, and a fixing pin penetrating through and cooperating with one of the fixing through holes located above the fixing plate, so that the lifting pipe is restricted and supported by the fixing plate.

[0007] This utility model provides a drilling overhead trench support. The support can adjust its height automatically, and its installation and disassembly are quick, convenient, and safe. It requires fewer employees, reduces their labor intensity, and saves drilling costs.

[0008] As a further improvement, the support body is composed of a hollow frame structure consisting of a support upper plate arranged horizontally at the top, multiple support fixing ties arranged horizontally in the middle, multiple support columns arranged vertically around the perimeter, and a support base plate arranged horizontally at the bottom.

[0009] As a further improvement, a steel plate is fixedly installed at the lowest end of the lifting pipe body, and the steel plate abuts and contacts the upper end face of the hydraulic cylinder.

[0010] As a further improvement, the hydraulic device is mounted on a pressure plate, which is arranged laterally inside the support body.

[0011] As a further improvement, the support body is a trapezoidal frame structure that is narrower at the top and wider at the bottom, and is a frame structure welded from square steel. The upper plate of the support, the fixing plate, the pressure plate and the bottom plate of the support are all fixedly connected to the adjacent support fixing ribs by welding.

[0012] As a further improvement, the pressure plate is located 600mm below the fixed plate.

[0013] As a further improvement, the lifting tube body is made of thick-walled seamless steel pipe, and the multiple fixing through holes are arranged with different hole spacing in the longitudinal direction. The fixing pin is inserted into the corresponding fixing through hole, so that the lifting tube sits on the fixing plate when the lifting tube is lowered.

[0014] As a further improvement, the shape of the bracket fixing clip is consistent with the shape of the fixing sleeve at the bottom of the overhead groove, and is slightly smaller than the fixing sleeve, with the overhead groove sitting on the bracket clip sleeve.

[0015] As a further improvement, the bracket connecting pin is hinged to the circular hole of the lifting pipe body to enable the bracket fixing clip to rotate within a certain range and the lifting pipe body to form a certain inclination, so as to adapt the overhead trough to have a certain inclination in the direction from the drilling platform to the drilling vibrating screen.

[0016] The inlet and outlet pipes of the hydraulic device are connected to the hydraulic system of the hydraulic tongs on the drilling rig via auxiliary hydraulic lines and are driven accordingly.

[0017] This utility model provides a drilling overhead trough support with a certain degree of inclination, which facilitates the adaptation of the overhead trough to a certain inclination in the direction from the drilling platform to the drilling vibrating screen, thus promoting mud flow. Attached Figure Description

[0018] Figure 1 This is a front view of the present utility model;

[0019] Figure 2 This is a side view of an example of this utility model;

[0020] Figure 3 This is a top view of the present invention;

[0021] Figure 4 This is a perspective view of the present utility model;

[0022] Figure 5 This is a perspective view of the present invention in an inclined state.

[0023] Reference numerals in the attached drawings: 1. Support body; 2. Support fixing clip; 3. Support connecting pin; 4. Lifting pipe; 5. Fixing pin; 6. Fixing plate; 7. Hydraulic device; 8. Pressure plate; 101. Support upper plate; 102. Support support column; 103. Support fixing tie rod; 104. Support base plate; 401. Lifting pipe body; 402. Fixing through hole; 701. Hydraulic cylinder; 702. Oil inlet pipe; 703. Oil return pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 5As shown, this utility model provides a drilling overhead trough support, which includes: a support body 1 with a hollow frame structure, wherein the support body 1 is internally arranged with: a hydraulic device 7 located at the bottom, a lifting pipe 4 arranged at the upper end of the hydraulic cylinder 701 of the hydraulic device 7, the lower part of the lifting pipe body 401 of the lifting pipe is provided with multiple fixing through holes 402, and the uppermost part of the lifting pipe body 401 is provided with a circular hole, the circular hole cooperating with the support connecting pin 3 to rotatably connect and install the support fixing clip 2 at the uppermost part of the lifting pipe body 401, the upper end of the support fixing clip 2 being fitted into the fixing sleeve of the circulating overhead trough to fix the support and support the overhead trough; and a fixing plate 6 arranged along the cross-section of the support body 1, the middle part of the fixing plate 6 penetrating to accommodate the lifting pipe body 401, and a fixing pin 5 penetrating through and cooperating with one of the fixing through holes 402 located above the fixing plate 6, so that the lifting pipe 4 is restricted and supported by the fixing plate 6.

[0026] This utility model provides a drilling overhead trench support. The support can adjust its height automatically, and its installation and disassembly are quick, convenient, and safe. It requires fewer employees, reduces their labor intensity, and saves drilling costs.

[0027] As a further improvement, the support body 1 is composed of a support upper plate 101 arranged horizontally at the top, multiple support fixing ribs 103 arranged horizontally in the middle, multiple support support columns 102 arranged vertically around the perimeter, and a support base plate 104 arranged horizontally at the bottom, forming a hollow frame structure.

[0028] As a further improvement, a steel plate is fixedly installed at the lowest end of the lifting pipe body 401, and the steel plate abuts and contacts the upper end face of the hydraulic cylinder 701.

[0029] As a further improvement, the hydraulic device 7 is mounted on the pressure plate 8, which is arranged laterally inside the support body 1.

[0030] As a further improvement, the support body 1 is a trapezoidal frame structure that is narrow at the top and wide at the bottom and is a frame structure welded from square steel. The upper plate 101, the fixing plate 6, the pressure plate 8 and the support bottom plate 104 are all fixedly connected to the adjacent support fixing tie rods 103 by welding.

[0031] As a further improvement, the pressure plate 8 is located 600mm below the fixing plate 6.

[0032] As a further improvement, the lifting tube body 401 is made of thick-walled seamless steel pipe, and the multiple fixing through holes 402 are arranged with different hole spacing in the longitudinal direction. The fixing pin 5 is inserted into the corresponding fixing through hole 402, so that the lifting tube 4 sits on the fixing plate 6 when the lifting tube 4 is lowered.

[0033] As a further improvement, the bracket fixing clip 2 has the same shape as the fixing sleeve at the bottom of the overhead groove, and is slightly smaller than the fixing sleeve, with the overhead groove sitting on the bracket clip sleeve.

[0034] As a further improvement, the bracket connecting pin 3 is hinged to the circular hole of the lifting pipe body 401 to realize the bracket fixing card 2 and the lifting pipe body 401 rotatably connected within a certain range, and the overhead trough forms a certain inclination to adapt to the overhead trough having a certain inclination in the direction from the drilling platform to the drilling vibrating screen.

[0035] The inlet pipe 702 and return pipe 703 of the hydraulic device 7 are connected to the hydraulic system of the hydraulic tongs of the drilling rig through auxiliary hydraulic lines and are driven.

[0036] This utility model provides a drilling overhead trench support, specifically a drilling circulation overhead trench support. The support includes a support body, support fixing clips, support connecting pins, a lifting pipe, fixing pins, a fixing plate, a hydraulic device, and a pressure plate. The support body is connected to the bottom sleeve of the overhead trench via the support fixing clips. The height of the support is adjusted by the hydraulic device controlling the lifting pipe, whose height is fixed by the fixing pins and the fixing plate. This utility model support offers advantages such as self-adjustable height, quick and convenient installation and disassembly, safety, reduced labor intensity for employees, and cost savings in drilling. It also features a certain degree of inclination to accommodate the overhead trench's angle from the drilling platform to the drilling vibrating screen, facilitating mud flow.

[0037] This utility model provides a drilling overhead trough support, comprising: a support body 1, which is the overall structural component of the support, a frame structure composed of a support upper plate 101, support fixing tie rods 103, support support columns 102, and support base plate 104. A support fixing clip 2 is located at the top of the lifting pipe 4, its lower end connected to the lifting pipe 4 via a support connecting pin 3, and its upper end locked in a sleeve of the circulating overhead trough, serving to fix the support and support the overhead trough. The support connecting pin 3, being of the same material and specifications as the fixing pin 5, serves to connect the support fixing clip 2 to the lifting pipe 4. The lifting pipe 4, installed in the middle of the support body, is made of thickened seamless steel pipe. The lower part of the lifting pipe body 401 has multiple fixing through holes 402 with different hole spacings, the uppermost of which has a circular hole, and the lowermost end is welded with a steel plate. The fixing pin 5, made of round steel, can be inserted into any fixing through hole 402 in the lower part of the lifting pipe body 401, and its length is longer than the outer diameter of the lifting pipe. The fixing plate 6 is a steel plate welded to the lower part of the bracket body. After the fixing pin 5 is inserted into the fixing through hole 402 of the lifting tube, the lifting tube is lowered, and the fixing pin 5 and the lifting tube 4 sit on the fixing plate 6.

[0038] Hydraulic device 7 is a hydraulic cylinder that can extend and retract freely. It is mounted on pressure plate 8 and the height of the lifting pipe can be adjusted by the hydraulic cylinder. Pressure plate 8 is a steel plate welded to the lower part of the support body, 600mm below the fixed plate 6. The hydraulic cylinder of hydraulic device 7 rests on the pressure plate.

[0039] The support body is connected to the bottom sleeve of the overhead trench via support fixing clips. The support height is adjusted by a hydraulic system controlling the raising and lowering of the lifting pipe, which is fixed in height by fixing pins and plates. The support offers advantages such as self-adjustable height, quick, convenient, and safe installation and disassembly, reduced workforce requirements, decreased labor intensity, and reduced drilling costs. It can meet the needs of circulating drilling mud at wellheads at different heights.

[0040] The support body is the overall structural facility of the support system. It has a trapezoidal frame structure that is narrower at the top and wider at the bottom. The support body is a frame structure welded from square steel on all four sides and top and bottom. Support rods and reinforcing ribs are provided on all four sides. A steel plate is laid on the top of the support body. A through hole is opened in the middle of the steel plate. The diameter of the through hole is slightly larger than the outer diameter of the lifting pipe. A fixing plate is provided in the middle and lower part of the support. A through hole is opened in the middle of the fixing plate. The diameter of the through hole is slightly larger than the outer diameter of the lifting pipe. The bottom is the support base plate.

[0041] The support structure is designed as a trapezoidal frame, narrower at the top and wider at the bottom, which increases its stability when upright. Multiple reinforcing ribs are installed at appropriate heights on all four sides, enhancing the support's robustness and support capacity. The lifting tube is located in the middle of the support structure and passes through a central hole in the top steel plate and the lower middle fixing plate. These two holes help to straighten the lifting tube, facilitating safe and reliable raising and lowering of the support.

[0042] The support fixing clip has the same shape as the fixing sleeve at the bottom of the overhead trough, but is slightly smaller than the fixing sleeve. This allows the overhead trough to sit comfortably on the support clip, further improving the stability of the support. The support connecting pin is inserted into the through hole at the top of the riser pipe to connect the support fixing clip to the riser pipe. The support fixing clip is connected to the riser pipe via the support connecting pin, forming a hinge connection. This ensures that the support fixing clip has a certain range of rotation, accommodating the slight inclination of the overhead trough from the drilling platform to the drilling vibrating screen, which is beneficial for mud flow.

[0043] The bracket connecting pin, made of the same material and specifications as the fixing pin, primarily serves to connect the bracket fixing clip to the lifting pipe. This allows the bracket fixing clip to rotate within a certain range, ensuring the overhead trough has a certain degree of inclination.

[0044] The lifting tube, installed in the middle of the support body, is made of thick-walled seamless steel pipe. The lower part of the lifting tube has multiple fixing through holes with different spacing. Fixing pins are inserted into these through holes, lowering the lifting tube to allow it to rest on the fixed plate. After adjusting the height of the lifting tube using a hydraulic system, fixing pins are inserted into the multiple through holes with different spacing at the bottom of the lifting tube, leaving a certain length at both ends of the pins. These extended portions of the pins rest on the fixed plate, allowing the lifting tube to sit on it. Once the fixing pins are inserted into the through holes at different heights, the height of the lifting tube remains fixed after the lifting process.

[0045] The fixing pin is made of round steel, with an outer diameter slightly smaller than the diameter of the fixing through hole in the lifting pipe and a length longer than the fixing through hole. It is inserted into the fixing through hole in the lower part of the lifting pipe. The fixing pin is inserted into the fixing through holes with different hole spacing in the lower part of the lifting pipe. After the lifting pipe is adjusted to the correct height, it sits on the fixing plate of the support body to ensure the stability of the lifting pipe and that its height remains constant.

[0046] The fixing plate is a steel plate welded to the lower part of the bracket body. After the fixing pin is inserted into the fixing through hole of the lifting tube, the lifting tube is lowered and the fixing pin sits on the fixing plate, thus fixing the lifting tube.

[0047] The hydraulic system consists of a power hydraulic cylinder and auxiliary hydraulic lines mounted on the support base of the support frame. The hydraulic cylinder rests at the lower end of the riser pipe. The hydraulic power comes from the hydraulic system of the drilling rig's pneumatic tongs. A hydraulic oil inlet line and a return line are connected to the hydraulic cylinder of the hydraulic system via the pneumatic tongs. The extension and retraction of the hydraulic cylinder can be controlled from the drilling rig, thus raising and lowering the riser pipe to meet the circulating mud requirements of the overhead trench. No additional hydraulic power source is needed; the existing hydraulic system on the drilling rig can be used to control the hydraulic system, enabling the riser pipe to rise and fall automatically.

[0048] The pressure plate is a steel plate welded to the lower interior of the support body, 600mm below the fixed plate. The hydraulic cylinder of the hydraulic device rests on the pressure plate, supporting the lifting pipe to complete the lifting and lowering process.

[0049] In such as 1 to Figure 5 In the preferred embodiment shown, this utility model provides a drilling circulation overhead trench support, which includes a support body, a support fixing clip, a support connecting pin, a lifting pipe, a fixing pin, a fixing plate, a hydraulic device, a pressure plate, etc. The support body 1 is welded from square steel, forming a steel frame structure. The support fixing clip 2 is located at the top of the lifting pipe, connecting and supporting the circulating overhead trough. The support connecting pin 3 connects the lifting pipe to the support fixing clip through a through hole at the top of the lifting pipe. The lifting pipe 4 is installed in the middle of the support body and is made of thickened seamless steel pipe. The lower part of the lifting pipe body has multiple fixing through holes with different hole spacings. The fixing pin 5 is made of round steel and can be inserted into any fixing through hole in the lower part of the lifting pipe body. The fixing plate 6 is a steel plate welded to the lower part of the support body. After the fixing pin is inserted into the fixing through hole of the lifting pipe, the lifting pipe is lowered, and the fixing pin sits on the fixing plate, thus fixing the lifting pipe. The hydraulic device 7 is a hydraulic cylinder system that can extend and retract. It is installed on the pressure seat at the bottom of the support body and can adjust the height of the lifting pipe through the hydraulic cylinder. The pressure plate 8 is a steel plate welded to the lower part of the support body, 600mm below the fixing plate. The hydraulic cylinder of the hydraulic device rests on the pressure plate.

[0050] In this embodiment, the height of the drilling circulation overhead trough support can be adjusted automatically via a lifting pipe. Before installing the support, the height of the support lifting pipe is adjusted according to the possible placement height of the overhead trough. The support is placed directly below the overhead trough, and then the overhead trough is placed directly above the support fixing clip using a crane. The overhead trough is lowered to ensure that the support fixing clip is inserted into the lower sleeve of the overhead trough. The height of the lifting pipe is adjusted using a hydraulic device until the support fixing clip is inserted into the bottom sleeve of the overhead trough, supporting the overhead trough. Then, the height of the lifting pipe is finely adjusted to ensure that the fixing pin can be inserted into the through hole of the lifting pipe. The lifting pipe is then lowered or raised so that the fixing pin sits on the fixing plate, achieving the purpose of connecting and fixing the support to the overhead trough and supporting the overhead trough.

[0051] In this embodiment, the support body 1 is the overall structural facility of the support, which presents a trapezoidal frame structure that is narrower at the top and wider at the bottom. The support body is welded from 150mm*150mm 45# square steel on all four sides and top and bottom. Support columns 102 and reinforcing ribs 103 are provided on all four sides. The ribs are welded from 150mm*150mm 45# square steel. A 45# steel plate with a thickness of 50mm is laid on the top of the support body 1 to form the upper support plate 101. A through hole is opened in the middle of the steel plate. The diameter of the through hole is slightly larger than the outer diameter of the lifting pipe. A fixing plate is provided in the middle and lower part of the support. The fixing steel plate is processed from 45# steel plate with a thickness of 50mm. A through hole is provided in the middle of the fixing plate. The diameter of the through hole is slightly larger than the outer diameter of the lifting pipe. A base plate 104 is provided at the bottom of the support body.

[0052] In this embodiment, the bracket fixing card 2 has the same shape as the sleeve at the bottom of the overhead trough, and is slightly smaller than the sleeve at the bottom of the overhead trough, so that the overhead trough can sit on the bracket fixing card 2. It is connected to the bracket body through the bracket connecting pin 3, which can ensure that the bracket fixing card 2 has a certain range of rotation, so as to meet the requirement that the overhead trough has a certain inclination from the drilling platform to the drilling vibrating screen, which is conducive to the flow of mud.

[0053] In this embodiment, the bracket connecting pin 3 is made of the same material and has the same specifications as the fixing pin. It mainly serves to connect the bracket fixing card 2 and the lifting pipe 4 together, so that the bracket fixing card 2 can rotate and the overhead trough has a certain degree of inclination.

[0054] In this embodiment, the lifting pipe 4 is installed in the middle part inside the support body 1. It is made of seamless steel pipe with a diameter of 200mm and a wall thickness of 12mm. The lower part of the lifting pipe 4 body 401 is provided with multiple through holes 402 at different intervals. A 200mm diameter, 50mm thick 45# steel plate is welded to the lowest end of the lifting pipe 4.

[0055] In this embodiment, the fixing pin 5 is made of 45# round steel. Its outer diameter is slightly smaller than the diameter of the through hole 402 of the lifting pipe 4. The height of the bracket can be adjusted and fixed by inserting it into the through hole 402 at different heights of the lifting pipe 4.

[0056] In this embodiment, the fixing plate 6 is a steel plate welded to the lower part of the bracket body. After the fixing pin 5 is inserted into any through hole of the lifting tube 4, the lifting tube falls or rises, and the fixing pin 5 sits on the fixing plate 6 to fix the lifting tube.

[0057] In this embodiment, the hydraulic device 7 consists of a power hydraulic cylinder 701 mounted on the pressure plate 8 and auxiliary hydraulic lines. When the hydraulic cylinder is working, it presses against the steel plate at the lower end of the lifting pipe. The hydraulic power comes from the hydraulic system of the hydraulic tongs on the drilling platform. An oil inlet hydraulic pipe 702 and a return oil pipe 703 are connected to the hydraulic cylinder of the hydraulic device through the hydraulic system of the hydraulic tongs. The hydraulic cylinder 701 of the hydraulic device can be controlled to extend and retract on the drilling platform to realize the raising and lowering of the lifting pipe 4 and meet the needs of circulating mud in the overhead trench.

[0058] In this embodiment, the pressure plate 8 is a steel plate welded to the lower part of the support body. The hydraulic device 7 is placed on the pressure plate 600mm below the fixing plate 6.

[0059] This utility model discloses a drilling circulation overhead trench support, applicable in the oil drilling field. The support can automatically adjust its height to ensure that the circulation overhead trench meets the needs of circulating mud. The support has a simple structure, is easy to install and disassemble, has high safety performance, saves drilling costs, and can meet the needs of circulating mud at wellheads at different heights. This utility model can also be used in fields such as water pipelines, gas pipelines, and oil pipelines, with a wide range of applications.

[0060] After the drilling team's equipment relocation is completed, when installing the overhead trough, the height of the support lift pipe is set according to the expected installation height of the overhead trough. Then, the bottom clamp of the overhead trough is placed on the fixing clip of the support lift pipe. During subsequent drilling operations, the support height can be slightly adjusted to ensure smooth circulation of mud from the overhead trough. The support height can be adjusted as needed via the lift pipe during each drilling operation.

[0061] In a preferred embodiment, when the construction requires raising and lowering the support frame, the height of the lifting pipe 4 can be adjusted by operating the hydraulic device 7. The hydraulic device 7 can be a simple jack to control the height of the lifting pipe, thereby achieving the purpose of adjusting the support frame height. Alternatively, it can be achieved through a complex hydraulic device controlled by inlet and outlet oil pipes. The lifting pipe 4 is made of seamless steel pipe, or it can be made of solid round steel. The support body 1 is made of square steel, or it can be made of I-beams. The height of the support fixing plate and the pressure plate can be changed, and the distance between them can also be changed. The fixing plate and the pressure plate can also be made of I-beams instead of steel plates.

[0062] It should be understood that the scope of protection sought by this utility model is not limited to the non-limiting embodiments, which are merely illustrative examples. The substantive scope of protection claimed in this application is further embodied in the scope provided by the independent claims and their dependent claims.

Claims

1. A drilling rig air slot support, characterized by: It includes: The support body (1) has a hollow frame structure, and the support body (1) is internally arranged with: The hydraulic device (7) located below has a lifting pipe (4) arranged at the upper end of the hydraulic cylinder (701). The lower part of the lifting pipe body (401) of the lifting pipe has multiple fixed through holes (402), and its uppermost end has a circular hole. The circular hole cooperates with the bracket connecting pin (3) to rotatably connect and install the bracket fixing clip (2) at the uppermost end of the lifting pipe body (401). The upper end of the bracket fixing clip (2) is fitted into the fixing sleeve of the circulating overhead trough to fix the bracket and support the overhead trough; and A fixing plate (6) is arranged along the cross-section of the bracket body (1). The middle part of the fixing plate (6) is used to accommodate the lifting tube body (401). A fixing pin (5) passes through and cooperates with a fixing through hole (402) located above the fixing plate (6) so that the lifting tube (4) is restricted and supported by the fixing plate (6).

2. The drilling overhead slot support according to claim 1, characterized in that: The support body (1) consists of a hollow frame structure composed of a support upper plate (101) arranged horizontally at the top, multiple support fixing ties (103) arranged horizontally in the middle, multiple support support columns (102) arranged vertically around the perimeter, and a support base plate (104) arranged horizontally at the bottom.

3. A drilling overhead trench support according to claim 2, characterized in that: A steel plate is fixedly installed at the lowest end of the lifting pipe body (401), and the steel plate abuts against and contacts the upper end face of the hydraulic cylinder (701).

4. A drilling overhead trench support according to claim 3, characterized in that: The hydraulic device (7) is installed on the pressure plate (8), which is arranged laterally inside the support body (1).

5. A drilling overhead trench support according to claim 4, characterized in that: The support body (1) is a trapezoidal frame structure that is narrow at the top and wide at the bottom and is made of square steel welded together. The upper plate (101), the fixing plate (6), the pressure plate (8) and the bottom plate (104) of the support are all fixedly connected to the adjacent support fixing tie rod (103) by welding.

6. A drilling overhead trench support according to claim 5, characterized in that: The pressure plate (8) is located 600 mm below the fixing plate (6).

7. A drilling overhead trench support according to claim 1, characterized in that: The lifting tube body (401) is made of thick-walled seamless steel pipe. The multiple fixed through holes (402) are arranged in a longitudinal manner with different hole spacing. The fixing pin (5) is inserted into the corresponding fixed through hole (402) so that the lifting tube (4) sits on the fixing plate (6) when the lifting tube (4) is lowered.

8. A drilling overhead trench support according to claim 1, characterized in that: The bracket fixing clip (2) has the same shape as the fixing sleeve at the bottom of the overhead groove, and is slightly smaller than the fixing sleeve. The overhead groove sits on the bracket clip sleeve.

9. A drilling overhead trench support according to claim 8, characterized in that: The bracket connecting pin (3) is hinged to the circular hole of the lifting pipe body (401) to realize the bracket fixing card (2) and the lifting pipe body (401) rotatably connected within a certain range. The overhead trough forms an inclination to adapt to the inclination of the overhead trough from the drilling platform to the drilling vibrating screen.

10. A drilling overhead trench support according to claim 1, characterized in that: The inlet pipe (702) and return pipe (703) of the hydraulic device (7) are connected to the hydraulic system of the hydraulic tongs of the drilling rig through auxiliary hydraulic lines and are driven.

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