Detection-while-drilling equipment with intelligent early warning function

Abstract

The invention discloses detection while drilling equipment with an intelligent early warning function, and relates to the technical field of drilling equipment, and the detection while drilling equipment comprises mobile equipment which is provided with an angle adjusting end, and the angle adjusting end is provided with a base; the rotary driving assembly is movably arranged on the base in the length direction of the base and is driven by a third hydraulic cylinder to move; the rotation driving force of the drill rod is provided by the rotation driving assembly, one end of the drill rod is provided with a drill bit assembly, and the other end of the drill rod is connected with a liquid supply pipe; the plugging assembly is arranged on the drilling working face and used for plugging so as to collect liquid, rock blocks and gas generated in the drilling process; wherein a detection assembly is arranged below the plugging assembly, and the detection assembly carries out early warning according to the detected rock property, so that the safety is improved.

Description

Technical Field

[0001] This invention relates to the field of drilling equipment technology, and more specifically to a drilling detection device with intelligent early warning capabilities. Background Technology

[0002] Drilling detection equipment is a key piece of equipment in the fields of geological exploration, mineral development and engineering drilling. Its core function is to monitor geological conditions, equipment status and environmental parameters in real time during drilling to ensure operational safety, improve drilling efficiency and achieve advanced geological early warning.

[0003] Currently, traditional equipment mostly uses monitoring methods such as pressure sensors and concentration sensors to infer geological risks by detecting abnormal changes in parameters such as drilling pressure, torque, and mud concentration. However, these methods are easily affected by complex downhole environments, such as vibration and noise, mud pump fluctuations, and uneven mixing of cuttings, leading to high false alarm rates and delayed warnings. For example, a sudden pressure change may be misjudged as a sudden change in rock formation, when it is actually due to abnormal operation of the mud pump; for example, concentration sensors are not sensitive to changes in the particle size and angularity of cuttings, and cannot identify highly abrasive formations such as quartz sandstone in advance, resulting in accelerated drill bit wear and an increased risk of stuck drill bit.

[0004] Therefore, it is necessary to provide a drilling detection device with intelligent early warning to solve the above problems. Summary of the Invention

[0005] To address the above problems, the present invention provides the following technical solution: a drilling detection device with intelligent early warning, comprising:

[0006] A mobile device having an angle adjustment end, on which a base is provided;

[0007] A rotary drive assembly is movably disposed on the base along the length direction of the base and is driven to move by a third hydraulic cylinder;

[0008] The drill rod is provided with rotational driving force by the rotary drive assembly, and a drill bit assembly is provided at one end of the drill rod and a fluid supply pipe is connected at the other end;

[0009] A plugging assembly, which is placed at the drilling face and used for plugging to collect liquids, rock fragments, and gases generated during drilling;

[0010] The sealing component is equipped with a detection component below it, which provides an early warning based on the detected rock characteristics.

[0011] Furthermore, as a preferred embodiment, the third hydraulic cylinder is configured to: apply instantaneous drilling pressure pulses as needed during drilling to cause controllable disturbance to the rock formation by the drill bit assembly; the detection assembly synchronously collects the rock block properties before and after the disturbance, and identifies potential hazards in the rock formation by analyzing the differences in characteristic parameters before and after the disturbance.

[0012] Furthermore, preferably, the drill bit assembly includes:

[0013] A connecting short section, one end of which is connected to the drill pipe, and the other end of which is connected to a load-bearing short section;

[0014] A limiting ring seat is fixed in the bearing short section, and the limiting ring seat has a plurality of limiting grooves extending along the axial direction of the limiting ring seat;

[0015] The sliding section has a plurality of limiting seats on its surface corresponding to the limiting groove, and the limiting seats are slidably disposed in the limiting groove;

[0016] The drill bit is fixed to the side of the sliding section away from the supporting section;

[0017] An elastic reset element is also provided between the drill bit and the bearing section.

[0018] Furthermore, preferably, the bearing section, the connecting section, and the drill pipe all have a channel for fluid flow;

[0019] The surface of the bearing section is provided with multiple first nozzles;

[0020] The surface of the drill bit is provided with multiple second nozzles;

[0021] Both the first and second nozzles are connected to the channel, and the channel supplies liquid to them.

[0022] Furthermore, as a preferred embodiment, a sealing ring seat is also fixed inside the carrying section. The sliding section forms a protrusion corresponding to the sealing ring seat at one end of the carrying section. When the protrusion just contacts the sealing ring seat, the communication between the first nozzle and the channel is blocked. When the protrusion fully contacts the sealing ring seat, the limiting seat disengages from the limiting groove.

[0023] Furthermore, preferably, the detection component includes:

[0024] A testing chamber is connected to the lower part of the sealing assembly, and the bottom of the testing chamber has a discharge port;

[0025] A buffer mesh plate is disposed in the middle of the detection chamber;

[0026] Two symmetrically arranged visual sensors are installed on the inner wall of the detection chamber to detect and distinguish the properties of the rocks.

[0027] Furthermore, as a preferred embodiment, the detection chamber is provided with two symmetrically arranged rotating wheels, and the surfaces of the rotating wheels are provided with multiple levers at equal angles. The distance between two adjacent rotating wheels satisfies the following condition: the closest distance between two levers at the same position on different rotating wheels is close but not equal to zero.

[0028] The vision sensor is located above the rotating wheel;

[0029] The wheel on the left rotates counterclockwise, and the wheel on the right rotates clockwise.

[0030] Furthermore, as a preferred embodiment, the buffer mesh plate is elastic, and two symmetrically arranged levers are fixed at its bottom. The levers contact each other with the plate and interfere with each other.

[0031] Furthermore, as a preferred embodiment, the sealing assembly includes a collection chamber with a sealing plate fixed to one side. The sealing plate is anchored to the working face by anchor bolts. Both the collection chamber and the sealing plate have through holes in the middle for the drill rod to pass through.

[0032] The top of the collection chamber is also connected to the exhaust pipe via a gas collection pipe;

[0033] A gas concentration sensor is installed in the gas collection pipe.

[0034] Furthermore, preferably, the mobile device includes:

[0035] The vehicle body has a support arm hinged to it, and the other end of the support arm is hinged to a connecting seat that serves as the angle adjustment end of the mobile device.

[0036] The second hydraulic cylinder has its two ends hinged between the connecting seat and the support arm, respectively;

[0037] The first hydraulic cylinder has its two ends hinged between the vehicle body and the support arm, respectively.

[0038] Compared with the prior art, the present invention provides a drilling detection device with intelligent early warning, which has the following beneficial effects:

[0039] In this invention, a third hydraulic cylinder generates an instantaneous drilling pressure pulse to create a controllable disturbance. The detection component analyzes the difference in rock block properties before and after the disturbance to identify potential hazards in the rock formation. Compared to traditional sensors, this mechanism has strong anti-interference capabilities. Combined with a visual sensor to monitor debris properties in real time, it can provide early warnings of highly abrasive formations such as quartz sandstone, dynamically adjust drilling pressure, rotation speed, and mud discharge, and reduce the risk of stuck drill.

[0040] In this invention, the drill bit assembly adopts an elastic reset component and a limiting ring seat design. When encountering hard rock resistance, the sliding short section moves backward to compress the spring to absorb the impact energy, triggering the sealing ring seat to block unnecessary hydraulic channels and prioritizing the flushing efficiency of the drill bit front end. If the resistance continues to increase, the limiting seat disengages from the limiting groove to achieve axial retraction of the drill bit, avoiding overload damage to the drill rod and extending the equipment life.

[0041] In this invention, the two rotating wheels of the detection component rotate in opposite directions. Rock debris is conveyed upwards by a guide plate to the sensing area of ​​the visual sensor, while water is rapidly discharged from the gap between the wheels under gravity. This effectively reduces interference from water mist and reflections on the visual sensor's imaging, resulting in good detection performance. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of a drilling detection device with intelligent early warning capabilities;

[0043] Figure 2 This is a schematic diagram of the structure of a mobile device;

[0044] Figure 3 This is a schematic diagram of the sealing component and the detection component;

[0045] Figure 4 This is a schematic diagram of the drill bit assembly.

[0046] In the diagram: 1. Mobile device; 2. Base; 3. Centralizing cylinder; 4. Rotary drive assembly; 5. Drill rod; 6. Sealing assembly; 7. Drill bit assembly; 8. Detection assembly; 9. Gas collection pipe; 10. Exhaust pipe; 11. Liquid supply pipe;

[0047] 101. Vehicle body; 102. First hydraulic cylinder; 103. Support arm; 104. Second hydraulic cylinder; 105. Connecting seat;

[0048] 61. Collection bin; 62. Sealing plate; 63. Anchor bolt;

[0049] 71. Connecting short section; 72. Bearing short section; 73. Sealing ring seat; 74. First nozzle; 75. Limiting ring seat; 76. Sliding short section; 77. Drill bit; 78. Limiting seat; 79. Elastic reset element;

[0050] 81. Detection chamber; 82. Rotary wheel; 83. Buffer mesh plate; 84. Lever; 85. Lever plate; 86. Vision sensor. Detailed Implementation

[0051] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms are interchangeable where appropriate; this is merely a way of distinguishing objects with the same attributes in the embodiments of this application. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, so that a process, method, system, product, or apparatus that comprises a series of elements is not necessarily limited to those elements, but may include other elements not explicitly listed or inherent to those processes, methods, products, or apparatuses.

[0052] Example: In this embodiment of the invention, please refer to... Figures 1-4 A drilling exploration device with intelligent early warning is provided, comprising:

[0053] Mobile device 1, which has an angle adjustment end, and a base 2 is provided on the angle adjustment end;

[0054] A rotary drive assembly 4 is movably disposed on the base 2 along the length direction of the base 2 and is driven to move by a third hydraulic cylinder;

[0055] The drill rod 5 is provided with rotational driving force by the rotary drive assembly 4. One end of the drill rod 5 is provided with a drill bit assembly 7, and the other end is connected to a liquid supply pipe 11. The base 2 is also provided with a straightening cylinder 3 for straightening the drill rod 5.

[0056] The plugging component 6 is located at the drilling face and is used for plugging to collect liquids, rock fragments and gases generated during drilling;

[0057] The sealing component 6 is provided with a detection component 8 below it, and the detection component 8 provides an early warning based on the detected rock block characteristics.

[0058] In other words, the mobile device 1 adjusts the spatial posture of the base 2 through the angle adjustment end, so that the drilling direction adapts to the working face angle. Meanwhile, the rotary drive assembly 4 moves along the length direction on the base 2 to realize the feed and retraction of the drill rod 5. At the same time, the drill rod 5 rotates under the drive of the rotary drive assembly 4, and coolant or cutting fluid is injected through the fluid supply pipe 11, while the drill bit assembly 7 performs rock breaking operations.

[0059] In addition, the sealing component 6 fits tightly against the drilling face to form a closed space, which collects the liquid, rock, and gas generated during drilling.

[0060] The detection component 8, located below the sealing component 6, monitors the collected rock characteristics (such as size, shape, and degree of fragmentation) in real time. When anomalies occur in the rock (such as a sudden increase in particle size or sharpening of edges), they are identified as geological risks (such as abrupt changes in rock strata or stress concentration), triggering an early warning signal. Compared to traditional pressure / concentration sensors, it has stronger anti-interference capabilities and a lower false alarm rate.

[0061] In this embodiment, the third hydraulic cylinder is configured to apply instantaneous drilling pressure pulses as needed during drilling, so that the drill bit assembly 7 can generate controllable disturbance to the rock formation; the detection assembly 8 synchronously collects the rock block properties before and after the disturbance, and identifies potential dangers in the rock formation by analyzing the difference in characteristic parameters before and after the disturbance.

[0062] Furthermore, the third hydraulic cylinder actively generates controllable disturbances, while the detection component 8 captures the dynamic response of the rock strata. At this point, difference analysis is performed to identify risks, forming an active geological body diagnostic mechanism. In other words, potential hazards in the rock strata are identified by analyzing the difference Δ between characteristic parameters before and after the disturbance, where Δ = |(characteristic value after disturbance - characteristic value before disturbance) / reference noise|.

[0063] In addition, by synchronously comparing the properties of rock blocks before and after disturbance, the interference of environmental baseline drift can be eliminated, and the reliability of early warning can be improved.

[0064] In this embodiment, the drill bit assembly 7 includes:

[0065] The connecting section 71 has one end connected to the drill rod 5 and the other end connected to the bearing section 72;

[0066] A limiting ring seat 75 is fixed in the bearing section 72, and the limiting ring seat 75 has a plurality of limiting grooves extending along the axial direction of the limiting ring seat 75;

[0067] The sliding section 76 has a plurality of limiting seats 78 on its surface corresponding to the limiting groove, and the limiting seats 78 are slidably disposed in the limiting groove;

[0068] Drill bit 77, which is fixed to the side of the sliding section 76 away from the bearing section 72;

[0069] An elastic reset member 79 is also provided between the drill bit 77 and the bearing section 72.

[0070] In other words, the connecting section 71 acts as a transition piece, with one end rigidly connected to the drill pipe 5 and the other end fixed to the bearing section 72, transmitting rotational power and axial thrust. The limiting ring seat 75 is fixed inside the bearing section 72, and its axially extending limiting grooves (such as 3-6 evenly distributed rectangular grooves) provide a linear guiding path. The sliding section 76 is embedded in the limiting groove through a limiting seat 78 (such as a boss structure) on its surface, achieving axial sliding constraint while restricting rotational freedom. The drill bit 77 is fixed to the end of the sliding section 76 and directly performs the rock-breaking action; the elastic reset element 79 (such as a spring) is installed between the drill bit 77 and the bearing section 72, forming a buffer structure.

[0071] During drilling, when drill bit 77 encounters hard rock or sudden resistance:

[0072] The axial force increases suddenly, and the drill bit 77 pushes the sliding section 76 to slide along the limiting groove towards the bearing section 72. The elastic reset member 79 is compressed, absorbing the impact energy.

[0073] In this embodiment, the supporting short section 72, the connecting short section 71, and the drill pipe 5 all have a channel for liquid flow;

[0074] The surface of the bearing section 72 is provided with a plurality of first nozzles 74;

[0075] The surface of the drill bit 77 is provided with a plurality of second nozzles;

[0076] Both the first nozzle 74 and the second nozzle are connected to the channel, and the channel supplies liquid.

[0077] The first nozzle 74 obtains high-pressure liquid through the channel and sprays it into the contact area with the rock layer, which can reduce drag and friction. The second nozzle simultaneously sprays liquid to the front end of the drill bit, which can flush away rock cuttings and prevent the drill from getting stuck due to accumulation.

[0078] In addition, a sealing ring seat 73 is fixed inside the bearing section 72. The sliding section 76 is located at one end of the bearing section 72 and forms a protrusion corresponding to the sealing ring seat 73. When the protrusion just contacts the sealing ring seat 73, the communication between the first nozzle 74 and the channel is blocked. When the protrusion fully contacts the sealing ring seat 73, the limiting seat 78 disengages from the limiting groove.

[0079] In other words, when drill bit 77 encounters a sudden increase in resistance (such as hard rock or a fault):

[0080] The sliding sub 76 moves backward to trigger the sealing ring seat 73, which first cuts off the hydraulic system (blocks the first nozzle 74), and the second nozzle can obtain enough energy to flush out rock cuttings or cut the rock mass to prevent the drill from getting stuck.

[0081] If the resistance continues to increase, the limit seat 78 will disengage from the limit groove, allowing the drill bit 77 to retract axially and preventing the drill rod 5 from being damaged due to overload.

[0082] In this embodiment, the detection component 8 includes:

[0083] The detection chamber 81 is connected to the lower part of the sealing component 6, and the bottom of the detection chamber 81 has a discharge port;

[0084] A buffer mesh plate 83 is disposed in the middle of the detection chamber 81;

[0085] Two symmetrically arranged visual sensors 86 are installed on the inner wall of the detection chamber 81 to detect and distinguish the properties of the rock.

[0086] In other words, the visual sensor 86 can distinguish the properties of the rock and thus predict the progress of drilling. Specifically, by correlating the properties of rock fragments with drilling parameters (such as a decrease in drilling speed due to an increase in the proportion of large-diameter fragments), advanced geological warnings can be achieved, reducing risks such as stuck drill and drill bit wear.

[0087] For example, when drilling to a depth of 5m, the following was detected:

[0088] Debris particle size distribution: The proportion of particles >5mm increased from 15% to 45%;

[0089] Sharpness of edges: increased by 22%;

[0090] Color: Grayish white turns into dark brown.

[0091] If we infer that we have entered a quartz sandstone layer (high hardness, high abrasiveness), then we should adjust the rotation speed to be reduced, the drilling pressure to be reduced accordingly, and the mud discharge to be increased.

[0092] Among them, the buffer mesh plate 83 can buffer the falling rock debris and improve the capture effect of the vision sensor 86.

[0093] Furthermore, the detection chamber 81 is rotatably equipped with two symmetrically arranged rotating wheels 82. The surfaces of the rotating wheels 82 are distributed with multiple levers 85 at equal angles. The distance between two adjacent rotating wheels 82 satisfies the following condition: the closest distance between two levers 85 at the same position on different rotating wheels 82 is close but not equal to zero.

[0094] The visual sensor 86 is located above the rotating wheel 82;

[0095] The left wheel 82 rotates counterclockwise, and the right wheel 82 rotates clockwise.

[0096] In this embodiment, the two rotating wheels 82 rotate in opposite directions. Rock debris is conveyed upwards by the deflector 85 to the sensing area of ​​the visual sensor 86, while water is rapidly discharged from the gap between the rotating wheels 82 under the influence of gravity. This effectively reduces the interference of water mist and reflections on the imaging of the visual sensor 86.

[0097] The closest distance between the baffles at the same position on adjacent rotors is close but not zero. This ensures that debris is effectively lifted by the baffles while preventing leakage due to excessive gaps, and also allows water to drain smoothly. When the debris is lifted to below the sensor, since most of the water has been discharged, the vision sensor 86 can capture clearer, unobstructed surface features of the debris (such as texture, color, and shape), reducing the risk of misjudgment due to water adhesion and improving image recognition accuracy.

[0098] Furthermore, the dial plate 85 has through holes to ensure that the liquid can be discharged effectively and quickly.

[0099] Furthermore, the buffer mesh plate 83 is elastic, and two symmetrically arranged levers 84 are fixed at its bottom. The levers 84 and the lever plate 85 are in contact with each other and interfere with each other.

[0100] When the wheel 82 rotates, the lever 85 periodically strikes the lever 84, triggering the elastic vibration of the buffer mesh plate 83, thus preventing the accumulation and adhesion of gravel on the surface of the buffer mesh plate 83, which can lead to blockage.

[0101] In this embodiment, the sealing assembly 6 includes a collection chamber 61, on one side of which a sealing plate 62 is fixed. The sealing plate 62 is anchored to the working face by an anchor rod 63. Both the collection chamber 61 and the sealing plate 62 have through holes in the middle for the drill rod 5 to pass through.

[0102] The top of the collection chamber 61 is also connected to the exhaust pipe 10 via the gas collection pipe 9;

[0103] A gas concentration sensor is installed in the gas collection pipe 9, and the gas concentration sensor can also be used for early warning.

[0104] In this embodiment, the mobile device 1 includes:

[0105] The vehicle body 101 has a support arm 103 hinged to it, and the other end of the support arm 103 is hinged to a connecting seat 105, which serves as the angle adjustment end of the mobile device 1.

[0106] The second hydraulic cylinder 104 has its two ends hinged between the connecting seat 105 and the support arm 103, respectively;

[0107] The first hydraulic cylinder 102 is hinged at both ends between the vehicle body 101 and the support arm 103, respectively.

[0108] The hydraulically driven articulated structure in this embodiment achieves multi-dimensional, high-precision, and high-stability angle adjustment through the coordinated control of two hydraulic cylinders.

[0109] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A drilling exploration device with intelligent early warning, characterized in that, include: A mobile device (1) having an angle adjustment end, on which a base (2) is provided; A rotary drive assembly (4) is movably disposed on the base (2) along the length direction of the base (2) and is driven to move by a third hydraulic cylinder; The drill rod (5) is provided with rotational driving force by the rotary drive assembly (4). One end of the drill rod (5) is provided with a drill bit assembly (7), and the other end is connected to a liquid supply pipe (11). A plugging assembly (6) is installed at the drilling face and used for plugging to collect liquids, rock fragments and gases generated during drilling; The sealing component (6) is provided with a detection component (8) below it, and the detection component (8) provides an early warning based on the detected rock block characteristics.

2. The drilling exploration equipment with intelligent early warning as described in claim 1, characterized in that, The third hydraulic cylinder is configured to apply instantaneous drilling pressure pulses as needed during drilling, so that the drill bit assembly (7) generates controllable disturbance to the rock formation; the detection assembly (8) synchronously collects the rock block properties before and after the disturbance, and identifies potential dangers in the rock formation by analyzing the difference in characteristic parameters before and after the disturbance.

3. The drilling exploration equipment with intelligent early warning as described in claim 1, characterized in that, The drill bit assembly (7) includes: A connecting short section (71) is connected at one end to the drill rod (5) and at the other end to a bearing short section (72). A limiting ring seat (75) is fixed in the bearing short section (72), and the limiting ring seat (75) has a plurality of limiting grooves extending along the axial direction of the limiting ring seat (75); The sliding section (76) has a plurality of limiting seats (78) on its surface corresponding to the limiting groove, and the limiting seats (78) are slidably disposed in the limiting groove; The drill bit (77) is fixed to the side of the sliding sub (76) away from the bearing sub (72); An elastic reset member (79) is also provided between the drill bit (77) and the bearing section (72).

4. A drilling exploration device with intelligent early warning as described in claim 3, characterized in that, The bearing section (72), the connecting section (71), and the drill pipe (5) all have a channel for fluid flow; The surface of the bearing section (72) is provided with a plurality of first nozzles (74); The surface of the drill bit (77) is provided with a plurality of second nozzles; The first nozzle (74) and the second nozzle are both connected to the channel, and the channel provides liquid.

5. A drilling exploration device with intelligent early warning as described in claim 4, characterized in that, The bearing section (72) is also fixed with a sealing ring seat (73). The sliding section (76) is located at one end of the bearing section (72) and forms a protrusion corresponding to the sealing ring seat (73). When the protrusion just contacts the sealing ring seat (73), the communication between the first nozzle (74) and the channel is blocked. When the protrusion fully contacts the sealing ring seat (73), the limiting seat (78) disengages from the limiting groove.

6. A drilling exploration device with intelligent early warning as described in claim 1, characterized in that, The detection component (8) includes: The detection chamber (81) is connected to the lower part of the sealing assembly (6), and the bottom of the detection chamber (81) has a discharge port; A buffer mesh plate (83) is disposed in the middle of the detection chamber (81); Two symmetrically arranged visual sensors (86) are installed on the inner wall of the detection chamber (81) to detect and distinguish the properties of the rock.

7. A drilling exploration device with intelligent early warning as described in claim 6, characterized in that, The detection chamber (81) has two symmetrically arranged rotating wheels (82) rotatably arranged. The surfaces of the rotating wheels (82) are distributed with multiple levers (85) at equal angles. The distance between two adjacent rotating wheels (82) satisfies the following condition: the closest distance between two levers (85) at the same position on different rotating wheels (82) is close but not equal to zero. The visual sensor (86) is located above the rotating wheel (82); The left wheel (82) rotates counterclockwise, and the right wheel (82) rotates clockwise.

8. A drilling exploration device with intelligent early warning as described in claim 7, characterized in that, The buffer mesh plate (83) is elastic, and two symmetrically arranged levers (84) are fixed at its bottom. The levers (84) and the lever plate (85) are in contact with each other and interfere with each other.

9. A drilling exploration device with intelligent early warning as described in claim 1, characterized in that, The sealing assembly (6) includes a collection chamber (61) with a sealing plate (62) fixed on one side. The sealing plate (62) is anchored to the working face by an anchor rod (63). Both the collection chamber (61) and the sealing plate (62) have through holes in the middle for the drill rod (5) to pass through. The top of the collection chamber (61) is also connected to the exhaust pipe (10) via the gas collection pipe (9); A gas concentration sensor is installed in the gas collection pipe (9).

10. A drilling exploration device with intelligent early warning as described in claim 1, characterized in that, The mobile device (1) includes: The vehicle body (101) has a support arm (103) hinged to it, and the other end of the support arm (103) is hinged to a connecting seat (105) which serves as the angle adjustment end of the mobile device (1). The second hydraulic cylinder (104) is hinged at both ends between the connecting seat (105) and the support arm (103); The first hydraulic cylinder (102) is hinged at both ends between the vehicle body (101) and the support arm (103).

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