Spray atomization and brush washing cooperation device for surface cleaning of derrick struts

Abstract

The present application relates to the technical field of derrick leg surface cleaning, and discloses a spraying atomization and brushing cooperation device for derrick leg surface cleaning, which comprises upper and lower protective plates in the shape of a semicircular arc and opposite to each other. The device has a reasonable structure, the upper and lower protective plates are hinged together and fastened to form an annular covering space by means of quick connectors, and thus fast opening and closing, loading and unloading, and compact design are realized; the clamping assembly driven by a linear actuator and provided with a walking driving mechanism is used to realize self-adaptive stable clamping and flexible and reliable crawling movement of the derrick leg to be cleaned; a spray head with adjustable spraying direction is arranged at one end of the protective plate to perform high-pressure flushing, and an elastic horn cylinder-shaped cleaning sheet with a minimum inner diameter smaller than the maximum transverse size of the derrick leg is arranged at the other end to perform flexible scraping, and thus the cooperation of spraying flushing and scraping brushing is realized, the problem of incomplete cleaning is solved, and the elastic covering of the cleaning sheet is used to prevent sewage backflow and avoid secondary pollution.

Description

Technical Field

[0001] This invention relates to the field of derrick support rod surface cleaning technology, and is a spray atomization and brushing combined device for cleaning the surface of derrick support rods. Background Technology

[0002] As a crucial load-bearing component in the derrick structure of oil drilling equipment, the derrick strut primarily enhances the overall stability and rigidity of the derrick, ensuring structural integrity and safety during drilling operations under complex loads. However, in actual drilling processes, derrick struts are exposed to extremely harsh operating environments for extended periods, making their surfaces highly susceptible to adsorption of drilling mud, crude oil, rock cuttings, dust, and various corrosive media from the air. Failure to promptly clean these surface contaminants not only damages the protective coating on the derrick strut surface, leading to decreased coating adhesion or even failure, but also accelerates the electrochemical corrosion process of the metal substrate in humid environments, significantly weakening the structural strength of the derrick strut and posing serious safety hazards to the overall stability of the derrick. Therefore, maintaining the cleanliness of the derrick strut surface plays an indispensable role in delaying equipment corrosion and ensuring the stability of the derrick and strut structure.

[0003] Currently, the industry primarily relies on manual high-altitude cleaning for the surface cleaning of derrick support rods. Due to the complex structure and confined space of the derrick, cleaning personnel must frequently climb and move between high-altitude sections, which is not only extremely labor-intensive but also carries significant safety risks such as falls, collisions, and crushing. Furthermore, limited by workspace and ergonomics, manual cleaning methods cannot achieve full coverage of the derrick support rod surface, often resulting in uneven cleaning intensity and incomplete scrubbing, easily creating cleaning blind spots. This experience-based approach is not only inefficient and fails to meet the large-scale, high-frequency maintenance needs of the oil drilling industry, but the inconsistent cleaning quality directly affects the effectiveness of subsequent anti-corrosion treatments, thus hindering the normal progress of oil drilling operations.

[0004] Although some mechanized cleaning equipment has emerged to replace manual labor, it still faces significant limitations in practical applications. On the one hand, existing mechanized devices are mostly complex in design and bulky, making them inconvenient to operate within the confined space of the derrick and lacking in mobility, thus failing to adapt to the harsh environment of high-altitude derrick operations. On the other hand, given the varying shapes of derrick support rods and the tight adhesion of oil and mud to their surfaces, existing equipment often struggles to achieve stable and adaptive clamping, leading to the cleaning device easily detaching or becoming inaccurately positioned during movement. Furthermore, existing spraying and brushing mechanisms often lack coordinated design, failing to provide uniform and thorough deep cleaning based on the degree of contamination. When faced with complex conditions involving heavy oil and dust, the cleaning effect is often unsatisfactory, making it difficult to balance the stability of high-altitude operations with the efficiency of cleaning, and thus failing to effectively solve the practical problems currently faced in cleaning derrick support rods. Summary of the Invention

[0005] This invention provides a spray atomization and brushing combined device for cleaning the surface of derrick struts, overcoming the shortcomings of the prior art. It can effectively solve the problems of existing derrick strut cleaning devices, such as complex structure, large size, poor mobility, difficulty in adaptive clamping, unstable clamping and easy detachment, and incomplete cleaning due to lack of coordination between spraying and brushing.

[0006] The technical solution of the present invention is achieved through the following measures: a spray atomization and brushing combined device for cleaning the surface of a derrick support rod, comprising an upper guard plate and a lower guard plate that are semi-circular and have openings facing each other. One side of the upper guard plate is hinged to one side of the lower guard plate, and the other side of the upper guard plate is connected to the other side of the lower guard plate through a quick connector. The openings of the upper guard plate and the lower guard plate are fastened together to form an annular covering space that is open at both ends.

[0007] The annular enclosed space is equipped with three clamping components that are evenly distributed around the circumference and have a walking drive mechanism. One clamping component is located inside the lower guard plate, and the other two clamping components are evenly distributed inside the upper guard plate. Each clamping component is connected to the upper or lower guard plate through a linear actuator, and can move radially to clamp the derrick support rod to be cleaned. In the clamping state, it drives the upper and lower guard plates to move along the length direction of the derrick support rod to be cleaned.

[0008] Water tanks are installed on the outer side of one end of both the upper and lower protective plates. The shape of the water tanks is adapted to the shape of the corresponding upper or lower protective plate. The two water tanks are connected by pipes. The water tank on the outer side of the upper protective plate is provided with a liquid inlet. Multiple nozzles with adjustable spray direction are connected to the outer side wall of both water tanks at intervals along the circumference.

[0009] Both the upper and lower guard plates have an arc-shaped cleaning plate made of elastic material fixedly installed at the other end. The arc length of the arc-shaped cleaning plate at one end near the upper or lower guard plate is greater than the arc length at the other end. The openings of the two arc-shaped cleaning plates are interlocked to form a trumpet-shaped cleaning plate. The minimum inner diameter of the trumpet-shaped cleaning plate is smaller than the maximum lateral dimension of the derrick support rod to be cleaned.

[0010] The following are further optimizations and / or improvements to the above-mentioned technical solution: The aforementioned linear actuator may include a first linear actuator and a second linear actuator; the clamping assembly with a walking drive mechanism may include a fixed plate, a directional drive wheel, a directional driven wheel, and a movable plate. The fixed plate is arranged axially along the upper or lower guard plate, and at least two first linear actuators are axially spaced between the fixed plate and the upper or lower guard plate. The protruding end of each first linear actuator is fixedly connected to the corresponding position of the fixed plate; corresponding to the position of each first linear actuator, the upper or lower guard plate is provided with an internally and externally penetrating clearance hole, and the other end of each first linear actuator passes through the corresponding clearance hole and is fixedly installed at the clearance hole; The fixed plate has an axially oriented wheel system mounting cavity. An axially spaced oriented drive wheel and at least one oriented driven wheel are rotatably mounted in the oriented wheel system mounting cavity. The oriented drive wheel and each oriented driven wheel are connected by a flexible component. The surface of the fixed plate has clearance notches corresponding to the positions of the oriented drive wheel and each oriented driven wheel. The edge portions of the oriented drive wheel and each oriented driven wheel pass through the corresponding clearance notches and protrude from the surface of the fixed plate. One end of the fixed plate has a first drive groove communicating with the oriented wheel system mounting cavity. An oriented drive motor is fixedly mounted in the first drive groove. The output shaft of the oriented drive motor is connected to the oriented drive wheel.

[0011] The movable plate is hinged to the fixed plate. At least two second linear actuators are provided axially between the movable plate and the upper or lower guard plate. The extended ends of the second linear actuators are hinged to the corresponding positions on the movable plate. For each position of the second linear actuator, the upper or lower guard plate is provided with a through strip groove. The strip groove is arranged circumferentially along the upper or lower guard plate. The other end of each second linear actuator passes through the corresponding strip groove and is rotatably mounted on the inner side of the middle of the strip groove. The movable plate is provided with a clamping wheel system mounting cavity axially. A clamping wheel system assembly is provided in the clamping wheel system mounting cavity. A clearance notch is opened on the surface of the movable plate. The wheel edge of the clamping wheel system assembly passes through the clearance notch and protrudes from the surface of the movable plate.

[0012] The aforementioned clamping wheel system assembly may include a clamping drive wheel and at least one clamping driven wheel. The clamping drive wheel and each clamping driven wheel are rotatably mounted axially spaced within the clamping wheel system mounting cavity. The clamping drive wheel and each clamping driven wheel are connected by a flexible transmission element. Alignment notches may be provided on the surface of the movable plate corresponding to the positions of the clamping drive wheel and each clamping driven wheel. The edge portions of the clamping drive wheel and each clamping driven wheel pass through the corresponding alignment notches and protrude from the surface of the movable plate. One end of the movable plate may be provided with a second drive groove communicating with the clamping wheel system mounting cavity. A clamping drive motor may be fixedly mounted in the second drive groove, and the output shaft of the clamping drive motor is connected to the clamping drive wheel via a transmission connection.

[0013] The outer circumferential surfaces of the aforementioned clamping drive wheel and each clamping driven wheel may be evenly distributed with multiple smooth curved pits. When the clamping drive wheel and each clamping driven wheel rotate, a local negative pressure is formed in the pits to enhance the adhesion between the directional drive wheel and each directional driven wheel and the outer surface of the derrick support rod to be cleaned.

[0014] The aforementioned flexible component can be a synchronous toothed belt.

[0015] Both the aforementioned directional drive motor and pressing drive motor can be motors with waterproof and dustproof functions.

[0016] An automatic pumping mechanism can be provided between the aforementioned fixed plate and the lower guard plate. The automatic pumping mechanism may include a support pad and an inlet pipe. The support pad can be installed on the side of the fixed plate facing the lower guard plate via a bracket. A U-shaped groove with an opening facing the fixed plate and extending along the length direction can be opened on the support pad at the positions corresponding to the directional drive wheel and the directional driven wheel. Pipe holes are respectively opened on the lower guard plate at the positions corresponding to both ends of the support pad. The inlet pipe is made of elastic material, and both ends of the inlet pipe pass through the two pipe holes respectively. The part of the inlet pipe located between the two pipe holes is laid along the U-shaped groove. The outlet end of the inlet pipe is connected to the water tank outside the lower guard plate. The bottoms of the directional drive wheel and the directional driven wheel are in pressure contact with the inlet pipe. When the directional drive wheel and the directional driven wheel rotate, they squeeze the inlet pipe to deform it, thereby realizing automatic pumping.

[0017] The width of the aforementioned directional drive wheel and directional driven wheel can be greater than the opening width of the U-shaped groove. The support pad has a clearance groove that is adapted to the bottom of the directional drive wheel and directional driven wheel at the position corresponding to the position of the directional drive wheel and directional driven wheel. The bottom of the clearance groove is connected to the U-shaped groove.

[0018] Each of the aforementioned fixing plates may have a rope hole at one end near the arc-shaped cleaning plate that communicates with the mounting cavity of the directional wheel system. A pull rope may be threaded through the rope hole. One end of the pull rope is connected to the circumference of the outer edge of the wheel axle end face of the corresponding directional driven wheel, and the other end of the pull rope is fixedly connected to the front area of ​​the arc-shaped cleaning plate.

[0019] The aforementioned quick-connector may be a quick-locking mechanism, which may include any one of a latch-type quick-clamp, a latch lock, a bolt, or a snap-lock.

[0020] The nozzle tube can be bent and deformed to adjust the spray direction.

[0021] An insert strip may be provided axially on the middle of the other fastening surface of the upper guard plate opposite to the hinge side, and a slot adapted to the insert strip may be provided on the other fastening surface of the lower guard plate at the position corresponding to the insert strip.

[0022] This invention features a reasonable structure, ease of use, and strong clamping stability, cleanliness and efficiency, high self-adaptability, high degree of automation, and safety and reliability. By using quick-connect fittings to fasten the hinged upper and lower guard plates together to form a ring-shaped enclosing space, it achieves rapid opening and closing, loading and unloading, and a compact design, effectively solving the problems of complex structures, large sizes, and inconvenient operation in narrow derrick spaces found in existing mechanical devices.

[0023] Through a double-plate clamping structure with rigid translation on one side and adaptive swinging hinge on the other, along with dual-sided drive of the directional wheel system and the clamping wheel system, adaptive and stable clamping and flexible and reliable crawling movement of derrick struts with different pipe diameters, cross-sectional shapes, or variable diameters are achieved, effectively overcoming the shortcomings of traditional equipment such as unstable clamping, easy detachment, and poor movement flexibility. In addition, the pits set on the outer periphery of the clamping wheel system can periodically form local negative pressure zones with the surface of the derrick strut during rotation, significantly enhancing the adhesion between the wheel system and the strut surface under complex working conditions such as smooth, wet, vertical, and inclined surfaces, effectively preventing slippage and freewheeling during movement.

[0024] By adjusting the spray direction of the nozzle, the surface of the derrick support rod is precisely pre-sprayed and wetted. Combined with the high-frequency, micro-amplitude vibration generated by the elastic, funnel-shaped cleaning disc pulled by the rope, this achieves a synergistic effect of pre-softening and dissolving dried oil stains with physical high-frequency scraping and scrubbing. This effectively enhances the ability to remove residual dirt and gives the cleaning disc a self-cleaning function, overcoming problems such as uneven cleaning force, incomplete scrubbing, and the tendency to leave blind spots. The design of the elastic, funnel-shaped cleaning disc, with a minimum inner diameter smaller than the maximum lateral dimension of the derrick support rod, effectively intercepts and guides the cleaning wastewater, preventing backflow and secondary pollution, while also protecting the surface coating of the derrick support rod from scratches by hard particles.

[0025] The automatic pumping mechanism, based on the working principle of a peristaltic pump, enables automatic delivery of cleaning fluid. By directly utilizing the rotation of the directional drive wheel and the directional driven wheel as the delivery power, there is no need for an additional independent power pump source, making the overall structure more compact and energy-efficient. At the same time, it can automatically match the supply of cleaning fluid with the crawling speed of the device, achieving precise and on-demand addition of cleaning fluid, effectively avoiding waste of cleaning fluid, and improving environmental protection while reducing operating costs. Attached Figure Description

[0026] Appendix Figure 1 This is a schematic diagram of the right half-section structure of Embodiments 1-12 of the present invention.

[0027] Appendix Figure 2 For the appendix Figure 1 A schematic diagram of the main structure.

[0028] Appendix Figure 3 For the appendix Figure 1 A schematic diagram of the three-dimensional structure from the front view.

[0029] Appendix Figure 4 For the appendix Figure 1 A three-dimensional structural diagram from the rear view.

[0030] Appendix Figure 5 For the appendix Figure 1 A schematic diagram of the explosion structure.

[0031] Appendix Figure 6 For the appendix Figure 1 A schematic diagram of the internal structure of the lower and middle guard plates.

[0032] Appendix Figure 7 For the appendix Figure 1 A schematic diagram of a three-dimensional partial cross-sectional structure of the clamping component.

[0033] Appendix Figure 8 For the appendix Figure 1 A three-dimensional structural diagram of the clamping component from another direction.

[0034] Appendix Figure 9 For the appendix Figure 1 Exploded view of the intermediate pressure drive wheel and automatic pumping mechanism.

[0035] The codes in the attached diagram are as follows: 1 is the upper protective plate, 2 is the lower protective plate, 3 is the water tank, 4 is the pipeline, 5 is the liquid inlet, 6 is the nozzle, 7 is the arc-shaped cleaning plate, 8 is the first linear actuator, 9 is the second linear actuator, 10 is the fixed plate, 11 is the directional drive wheel, 12 is the directional driven wheel, 13 is the movable plate, 14 is the directional wheel system mounting cavity, 15 is the flexible component, 16 is the first drive groove, 17 is the directional drive motor, 18 is the strip-shaped clearance groove, 19 is the clamping drive wheel, 20 is the clamping driven wheel, 21 is the clamping drive motor, 22 is the recess, 23 is the support pad, 24 is the liquid inlet pipe, 25 is the bracket, 26 is the U-shaped groove, 27 is the pipe through hole, 28 is the rope hole, 29 is the pull rope, 30 is the wheel axle end face, 31 is the insert, 32 is the slot, 33 is the spring hinge, 34 is the clearance hole, and 35 is the clearance groove. Detailed Implementation

[0036] The present invention is not limited to the following embodiments, and the specific implementation can be determined according to the technical solution of the present invention and the actual situation.

[0037] In this invention, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as front, back, top, bottom, left, right, etc. The positional relationships are determined based on the layout direction of the attached diagram in the instruction manual.

[0038] The present invention will be further described below with reference to embodiments and accompanying drawings: Example 1: As shown in the attached document Figures 1 to 9 As shown, the spray atomization and scrubbing combined device for cleaning the surface of the derrick support rod includes an upper guard plate 1 and a lower guard plate 2 with semi-circular arc shapes and opposite openings. One side of the upper guard plate 1 is hinged to one side of the lower guard plate 2, and the other side of the upper guard plate 1 is connected to the other side of the lower guard plate 2 through a quick connector. The openings of the upper guard plate 1 and the lower guard plate 2 are fastened together to form an annular covering space that is open at both ends.

[0039] In the above technical solution, one of the fastening surfaces of the upper guard plate 1 and one of the fastening surfaces of the lower guard plate 2 are hinged together by a hinge, so that the upper guard plate 1 can rotate and open relative to the lower guard plate 2 around the hinge axis; the other side of the upper guard plate 1 away from the hinge side is detachably connected to the corresponding side of the lower guard plate 2 by a quick connector, ensuring that the upper guard plate 1 and the lower guard plate 2 will not be accidentally opened during operation.

[0040] When the upper guard plate 1 and the lower guard plate 2 are fastened together and locked in place by the quick-connect fitting, their openings interlock to form a ring-shaped enclosed space that extends through both ends, used to accommodate the derrick support rod to be cleaned. This openable design eliminates the need to insert the device from the end of the derrick support rod; installation can begin at any position on the derrick support rod, greatly improving the convenience of on-site operation.

[0041] Depending on the requirements, the hinge can be a conventional hinge structure in the field, such as a hinge, pin hinge, or hinge seat; the quick-connect can be a latch, quick-lock pin, or other locking structure with quick locking and releasing functions.

[0042] The annular enclosed space is equipped with three clamping components that are evenly distributed around the circumference and have a walking drive mechanism. One clamping component is located inside the lower guard plate 2, and the other two clamping components are evenly distributed inside the upper guard plate 1. Each clamping component is connected to the upper guard plate 1 or the lower guard plate 2 through a linear actuator, and can move radially to clamp the derrick support rod to be cleaned. In the clamping state, the upper guard plate 1 and the lower guard plate 2 are driven to move along the length direction of the derrick support rod to be cleaned.

[0043] In the above technical solution, the three clamping components within the annular enclosed space are evenly distributed along the circumference, with an included angle of approximately 120° between them. One clamping component is located at the bottom inner side of the lower guard plate 2, while the other two clamping components are evenly distributed on the upper inner side of the upper guard plate 1, forming a stable three-point support structure. This provides a uniform radial constraint force to the derrick strut, ensuring uniform clamping force. Each clamping component is connected to the corresponding upper guard plate 1 or lower guard plate 2 via a linear actuator. By adjusting the extension length of each linear actuator, the clamping components can be clamped onto derrick struts of different diameters.

[0044] During operation, the extended end of the linear actuator elongates, driving the clamping components to move towards the center of the annular enclosing space until the three clamping components tightly clamp the derrick support rod to be cleaned from three directions. In the clamped state, the travel drive mechanism provided on the clamping components provides the invention with a driving force along the axial direction of the derrick support rod, thereby driving the invention to move along the length direction of the derrick support rod to be cleaned, achieving automatic climbing or descending.

[0045] In this embodiment, the linear actuator can be a hydraulic cylinder, a pneumatic cylinder, or an electric actuator. Taking a hydraulic cylinder as an example, the tail end of the hydraulic cylinder body is fixedly installed inside the corresponding guard plate, and the head of the piston rod is connected to the clamping assembly. When it is necessary to clamp the derrick support rod, the piston rod of the hydraulic cylinder is extended, pushing the clamping assembly to move towards the center of the annular enclosing space. When cleaning is complete and the derrick support rod needs to be released, the piston rod retracts. The type of actuator can be selected according to the power source conditions of different construction sites, such as hydraulic pump stations, air compressors, or power supplies at the work site.

[0046] The walking drive mechanism can be a friction drive wheel or a track. Taking a friction drive wheel as an example, the clamping assembly presses the friction drive wheel tightly against the surface of the derrick support rod under the action of the linear actuator. The friction drive wheel is driven to rotate by a built-in geared motor, and generates axial driving force by relying on the friction between it and the surface of the derrick support rod, thereby driving the invention to crawl along the length of the derrick support rod. If a track structure is used, it can provide a larger contact area and grip, preventing slippage on the surface of the derrick support rod, and is especially suitable for derrick support rods with wet or irregular shapes.

[0047] To facilitate the installation of the walking drive mechanism, the clamping assembly may also include a base or base plate.

[0048] Water tanks 3 are installed on the outer side of one end of the upper guard plate 1 and the lower guard plate 2. The shape of the water tanks 3 is adapted to the shape of the corresponding upper guard plate 1 or lower guard plate 2. The two water tanks 3 are connected by pipes 4. The water tank 3 on the outer side of the upper guard plate 1 is provided with a liquid inlet 5. Multiple nozzles 6 with adjustable spray direction are connected to the outer side wall of the two water tanks 3 along the circumference.

[0049] To achieve uniform spraying of the cleaning fluid, a water tank 3 is installed on the outer side of one end of both the upper guard plate 1 and the lower guard plate 2. The shape of the water tank 3 is adapted to the shape of the corresponding upper guard plate 1 or lower guard plate 2, such as being attached to the outer side of the upper guard plate 1 or lower guard plate 2 in a semi-circular arc shape, so as to maintain the overall compact structure and ensure the balance of the counterweight, so as to ensure the stability of the invention during the climbing process.

[0050] The two water tanks 3 are connected by multiple flexible pipes bridging the hinge, forming a communicating vessel structure to ensure that the spray system pressure on both sides of the upper guard plate 1 and the lower guard plate 2 is balanced and the liquid supply is uniform.

[0051] A liquid inlet 5 is provided on the water tank 3 located on the outside of the upper guard plate 1. The liquid inlet 5 can be connected to an external cleaning fluid supply pump station via a high-pressure hose. In use, a miniature water pump can also be additionally installed on the upper guard plate 1, and then the liquid inlet 5, the miniature water pump and the cleaning fluid tank can be connected via a hose to realize the injection of cleaning fluid.

[0052] On the outer walls of both water tanks 3, multiple nozzles 6 are connected at intervals along the circumference, and the spray direction of these nozzles 6 is adjustable, such as using universal ball nozzles or universal serpentine nozzles. By adjusting the angle of the nozzles 6, the sprayed high-pressure cleaning fluid can accurately cover all dead corners on the surface of the derrick support rod, achieving all-round spraying. Thus, during the movement of this invention, the derrick support rod is subjected to high-pressure washing to remove dust and other easily washable attachments. At the same time, the cleaning fluid is used to pre-wet, soften, and dissolve residual oil, mud, and other attachments, preparing them for physical scrubbing.

[0053] The nozzle system in this embodiment employs automated control logic. A controller is pre-installed within the upper guard plate 1 or the lower guard plate 2, and the controller is connected to the solenoid valve, linear actuator, and drive motor on the high-pressure hose, respectively. The controller uses a start-stop linkage strategy, activating the spray only when the clamping action is detected as complete and the device is ascending; it immediately shuts off the spray when the device stops, preventing waste of cleaning fluid during non-working periods. The controller is equipped with a flow adaptive adjustment module, which adjusts the solenoid valve opening based on the real-time ascending speed. In low-speed, heavily soiled areas, the flow rate is increased to extend the immersion time, while in high-speed cleaning areas, the flow rate is reduced, achieving on-demand distribution. Furthermore, the controller includes pre-treatment delay logic. Before ascending, the nozzle 6 is activated for a preset time to soften surface dirt, followed by starting the drive motor to drive the cleaning blade scraper. This achieves efficient coordination between cleaning fluid pre-immersion and scraping, improving the cleanliness of the cleaning operation.

[0054] The other ends of the upper guard plate 1 and the lower guard plate 2 are fixedly installed with arc-shaped cleaning plates 7 made of elastic material; the arc length of the arc-shaped cleaning plate 7 near the upper guard plate 1 or the lower guard plate 2 is greater than the arc length of the other end, and the openings of the two arc-shaped cleaning plates 7 are interlocked to form a trumpet-shaped cleaning plate. The minimum inner diameter of the trumpet-shaped cleaning plate is smaller than the maximum lateral dimension of the well frame support rod to be cleaned.

[0055] In this embodiment, two arc-shaped cleaning plates 7 are respectively installed on the upper guard plate 1 / lower guard plate 2 at the ends opposite to the water tank 3. The arc length of the arc-shaped cleaning plate 7 is larger and the wall thickness is thinner at the end closer to the upper guard plate 1 or lower guard plate 2, while the arc length is smaller and the wall thickness is thicker at the other end (the end farther from the upper guard plate 1 or lower guard plate 2), making it more wear-resistant. When the upper guard plate 1 and lower guard plate 2 are fastened together, the openings of the two arc-shaped cleaning plates 7 are fastened together to form a trumpet-shaped cleaning plate. The trumpet-shaped cleaning plate tapers smoothly from the end closer to the guard plate to the other end. The arc-shaped cleaning plate 7 can be made of wear-resistant and corrosion-resistant elastomer materials such as rubber or polyurethane.

[0056] Because the minimum inner diameter (i.e., the suspended end) of the trumpet-shaped cleaning blade is smaller than the maximum lateral dimension of the derrick support rod to be cleaned, the trumpet-shaped cleaning blade undergoes elastic deformation when the derrick support rod passes through this minimum inner diameter, thus tightly wrapping around the surface of the derrick support rod and forming a flexible scraping edge. Utilizing the sliding scraping action of the flexible scraping edge, dirt, mud, and moisture adhering to the surface of the derrick support rod after high-pressure washing can be thoroughly scraped away. The elastic opening structure of the trumpet-shaped cleaning blade also allows it to adapt to the slight unevenness of the derrick support rod surface, ensuring thorough scraping without dead angles and preventing jamming due to excessive resistance. Simultaneously, the gradually opening large-diameter end of the trumpet-shaped cleaning blade forms a transitional guide zone, which facilitates the discharge of scraped dirt and waste liquid to the outside of the invention, avoiding secondary pollution.

[0057] To achieve better coverage and avoid gaps at the interlocking surfaces of the split structure, the interlocking surfaces of the two arc-shaped cleaning plates 7 can be designed as overlapping structures or hook-on flanges. Specifically, in the overlapping structure, the edges of the interlocking surfaces of the upper and lower arc-shaped cleaning plates 7 can extend outward to form an overlap, similar to a roof tile structure, thereby effectively covering the joint gaps and ensuring that the joints do not leak or leave dirt residue during scraping. In the hook-on flange implementation, an upward U-shaped or L-shaped flange can be set on the edge of the upper arc-shaped cleaning plate 7's interlocking surface, and a matching downward flange can be set on the corresponding lower edge. When the upper guard plate 1 and the lower guard plate 2 are fastened, the two sets of flanges interlock and hook each other, which not only completely eliminates the joint gaps but also plays a role in mutual positioning and locking, preventing the joints from misaligning or opening when scraping under pressure, thus forming a complete 360° coverage without dead angles.

[0058] In use, first open the quick-connect fitting, then open the upper guard plate 1 and lower guard plate 2 to cover the outside of the derrick support rod to be cleaned, and then close and lock the upper guard plate 1 and lower guard plate 2. At this time, the derrick support rod passes through the annular covering space and the inner cavity of the trumpet-shaped cleaning plate. Activate the linear actuator to push the three clamping components to retract radially and clamp the derrick support rod. Adjust the spray direction of the nozzle 6, connect the inlet 5 to the external cleaning fluid supply pump station through the high-pressure hose, and inject high-pressure cleaning fluid into the water tank 3 so that the cleaning fluid is sprayed from each nozzle 6 to rinse the surface of the derrick support rod. Activate the walking drive mechanism on the clamping components to drive the invention to crawl along the derrick support rod axis. During the movement, the elastic arc-shaped cleaning plate 7 located behind the nozzle 6 adheres closely to the surface of the derrick support rod, scraping off the dirt and sewage after rinsing. This completes the spray rinsing and scraping cleaning operations in one go, replacing the high-risk manual climbing and positioning cleaning operations. This greatly improves the cleaning efficiency and safety of the derrick support rod, fundamentally eliminating the safety hazards of high-altitude operations.

[0059] This invention features a reasonable structure and convenient use. It utilizes quick-connect components to fasten the hinged upper guard plate 1 and lower guard plate 2 together, forming a ring-shaped enclosing space. This enables rapid opening and closing, loading and unloading, and a compact design, solving the problems of complex structure and large size in existing devices. Through a clamping assembly driven by a linear actuator and equipped with a walking drive mechanism, it achieves adaptive and stable clamping and flexible and reliable crawling movement of the derrick support rod to be cleaned, overcoming the shortcomings of traditional devices such as unstable clamping, easy detachment, and inflexible movement. By setting adjustable spray nozzles 6 at one end of the upper guard plate 1 and lower guard plate 2 for high-pressure rinsing, and flexible scraping with an elastic trumpet-shaped cleaning plate at the other end (with a minimum inner diameter smaller than the maximum lateral dimension of the derrick support rod), it achieves coordinated spray rinsing and scraping, not only solving the problem of incomplete cleaning but also preventing sewage backflow and secondary pollution through the elastic enclosing of the cleaning plate. It features a compact structure, stable clamping, high cleaning efficiency, and strong adaptability.

[0060] The above-mentioned spray atomization and scrubbing combined device for cleaning the surface of the derrick support rod can be further optimized and / or improved according to actual needs: Example 2: As an optimization of the above examples, as shown in the appendix Figures 1 to 9As shown, the linear actuator includes a first linear actuator 8 and a second linear actuator 9; the clamping assembly with a walking drive mechanism includes a fixed plate 10, a directional drive wheel 11, a directional driven wheel 12, and a movable plate 13. The fixed plate 10 is arranged along the axial direction of the upper guard plate 1 or the lower guard plate 2. At least two first linear actuators 8 are provided axially between the fixed plate 10 and the upper guard plate 1 or the lower guard plate 2. The protruding end of each first linear actuator 8 is fixedly connected to the corresponding position of the fixed plate 10. Corresponding to the position of each first linear actuator 8, the upper guard plate 1 or the lower guard plate 2 is provided with an inner and outer through clearance hole 34. The other end of each first linear actuator 8 passes through the corresponding clearance hole 34 and is fixedly installed at the clearance hole 34.

[0061] In the above technical solution, in order to enhance the stability of the overall structure of the present invention, the fixing plate 10 is arranged along the axial direction of the upper guard plate 1 or the lower guard plate 2 and its two ends are aligned with the two ends of the guard plate, so as to maximize the axial extension span of the clamping drive component, thereby ensuring that there is sufficient clamping length and a stable support foundation between the present invention and the derrick support rod, playing a constraint role similar to a rigid guide rail, effectively limiting the deflection degree of freedom of the present invention, preventing the present invention from radially shaking or axially swaying due to uneven force during crawling, so as to provide a stable motion platform for spray washing and elastic scraping, ensuring the continuity of cleaning operations and the consistency of cleaning effect.

[0062] To provide a stable basic clamping force, at least two first linear actuators 8, such as hydraulic cylinders, pneumatic cylinders, or electric push rods, are axially spaced between the fixed plate 10 and the upper guard plate 1 or the lower guard plate 2. To avoid interference and reduce the overall size of the device, corresponding to the position of each first linear actuator 8, a through-hole 34 is provided on the corresponding guard plate, allowing the cylinder tail of the first linear actuator 8 to pass through the through-hole 34 and be fixedly installed at the through-hole 34.

[0063] During use, when the first linear actuator 8 extends or retracts, it can push the fixed plate 10 to generate radial displacement so as to clamp or loosen the derrick support rod.

[0064] The fixed plate 10 has an axially oriented wheel system mounting cavity 14. An axially spaced oriented drive wheel 11 and at least one oriented driven wheel 12 are rotatably mounted in the oriented wheel system mounting cavity 14. The oriented drive wheel 11 and each oriented driven wheel 12 are connected by a flexible member 15. The surface of the fixed plate 10 has clearance notches corresponding to the positions of the oriented drive wheel 11 and each oriented driven wheel 12. The edge portions of the oriented drive wheel 11 and each oriented driven wheel 12 pass through the corresponding clearance notches and protrude from the surface of the fixed plate 10. One end of the fixed plate 10 has a first drive groove 16 that communicates with the oriented wheel system mounting cavity 14. An oriented drive motor 17 is fixedly mounted in the first drive groove 16. The output shaft of the oriented drive motor 17 is connected to the oriented drive wheel 11.

[0065] In this embodiment, in order to enable the present invention to move along the axial direction of the derrick support rod, a directional wheel system mounting cavity 14 is provided on the fixing plate 10 along the axial direction. In the mounting cavity, a directional drive wheel 11 and two directional driven wheels 12 are rotatably mounted and spaced along the axial direction. The directional drive wheel 11 and the two directional driven wheels 12 are connected by a flexible member 15 to form a directional wheel system. The output shaft of the directional drive motor 17 is connected to the directional drive wheel 11 and drives the entire directional wheel system through the flexible member 15, so that the directional wheel system can move along the surface of the derrick support rod, thereby driving the present invention to crawl along the length direction of the derrick support rod.

[0066] In order to make the directional wheel system contact the surface of the derrick support rod, clearance notches are provided on the surface of the fixed plate 10 at the positions corresponding to the directional drive wheel 11 and each directional driven wheel 12, so that the edge portions of the directional drive wheel 11 and each directional driven wheel 12 can pass through the clearance notches and protrude from the surface of the fixed plate 10.

[0067] Depending on the requirements, the flexible component 15 can be a synchronous toothed belt, chain, or track, and its tension can be ensured by adjusting the installation position of the drive motor or by setting a tensioning wheel; the directional drive motor 17 can be a hydraulic motor, pneumatic motor, or geared motor, which can be determined according to the type of power source at the work site; the directional drive wheel 11 and each directional driven wheel 12 can be installed in the directional wheel system mounting cavity 14 through bearing seats; the wheel body material of the directional drive wheel 11 and the directional driven wheel 12 is an elastomer material, such as high-strength wear-resistant rubber or polyurethane composite material, so that it can work stably for a long time in humid, dusty environments and environments containing cleaning fluid media.

[0068] The movable plate 13 is hinged to the fixed plate 10. At least two second linear actuators 9 are provided axially between the movable plate 13 and the upper guard plate 1 or the lower guard plate 2. The extended ends of the second linear actuators 9 are hinged to the corresponding positions of the movable plate 13. For each position of the second linear actuator 9, the upper guard plate 1 or the lower guard plate 2 is provided with a through strip groove 18. The strip groove 18 is arranged circumferentially along the upper guard plate 1 or the lower guard plate 2. The other end of each second linear actuator 9 passes through the corresponding strip groove 18 and is rotatably mounted on the inner side of the middle of the strip groove 18. The movable plate 13 is provided with a pressing wheel system mounting cavity axially. The pressing wheel system mounting cavity is provided with a pressing wheel system assembly. A clearance notch is opened on the surface of the movable plate 13. The wheel body edge of the pressing wheel system assembly passes through the clearance notch and protrudes from the surface of the movable plate 13.

[0069] In the above technical solution, to accommodate derrick struts of different sizes and cross-sectional shapes and ensure reliable clamping, a movable plate 13 is hinged to the fixed plate 10. At least two second linear actuators 9, such as hydraulic cylinders, pneumatic cylinders, or electric push rods, are axially spaced between the movable plate 13 and the corresponding guard plate. Unlike the fixed connection of the fixed plate 10, the extended end of the second linear actuator 9 is hinged to the corresponding position of the movable plate 13, allowing the movable plate 13 to swing at a certain angle. To avoid interference and reduce the overall size of the device, a strip-shaped clearance groove 18 is provided on the guard plate corresponding to the position of each second linear actuator 9, extending circumferentially along the corresponding guard plate. The tail of the cylinder of the second linear actuator 9 passes through the strip-shaped clearance groove 18 and is rotatably mounted on the inner side of the middle of the strip-shaped clearance groove 18. The movable plate 13 and the fixed plate 10 can be hinged by a hinge, a spring hinge 33 or a pin hinge. The spring hinge 33 is provided with a torsion spring. If a pin hinge is used, a torsion spring is sleeved on the pin. The two ends of the torsion spring abut against the upper guard plate 1 and the lower guard plate 2 respectively.

[0070] The second linear actuator 9 eliminates over-constraint through double hinges, allowing the movable plate 13 to adaptively swing at a certain angle according to the size and surface shape of the derrick support rod. The rotation of the tail of the second linear actuator 9 within the strip-shaped clearance groove 18 absorbs the positional deviation caused by the swing of the movable plate 13, avoiding motion interference and jamming of the connection mechanism between the movable plate 13, the second linear actuator 9, and the upper guard plate 1 or lower guard plate 2. This achieves floating adaptive clamping for derrick support rods with irregular cross-sections or different diameters. The irregular cross-section shape of the derrick support rod can be square, rectangular, L-shaped, or I-shaped, etc.

[0071] The clamping wheel system assembly can be installed in the clamping wheel system mounting cavity through the bearing seat. It can work with the directional wheel system to clamp the derrick support rod, providing stable radial support and clamping force. In addition, relying on the adaptive swing of the movable plate 13, the clamping wheel system can adapt to the surface of the derrick support rod with different cross-sectional shapes, achieving stable fit and providing reliable follow-up support during crawling, effectively preventing unilateral slippage and overall swaying, and better ensuring the smooth crawling of the present invention.

[0072] Since the movable plate 13 can swing relative to the fixed plate 10 along the hinge axis, and the tail of the second linear actuator 9 can rotate in the strip-shaped clearance groove 18, the movable plate 13 can adaptively adjust its angle according to the actual outer diameter and surface shape of the derrick support rod, ensuring that the V-shaped clamping structure formed by the clamping wheel system and the directional wheel system can clamp the derrick support rod.

[0073] During operation, the first linear actuator 8 pushes the fixed plate 10, causing the directional wheel system to press against one side of the derrick support rod. Simultaneously, the second linear actuator 9 pushes the movable plate 13 to rotate around the hinge axis, causing the clamping wheel system to press against the other side of the derrick support rod, forming a V-shaped clamping structure with the directional wheel system on the fixed plate 10, thereby providing a stable clamping positive pressure. After the directional drive motor 17 is started, the directional drive wheel 11 drives the directional driven wheel 12 to rotate through the flexible member 15. The clamping wheel system assembly provides follow-up support. Relying on the friction between the directional wheel system and the derrick support rod, the invention is driven to crawl smoothly along the length of the derrick support rod.

[0074] This embodiment, through the combined design of the rigid translational fixed plate 10 and the hinged swing movable plate 13, not only achieves multi-point stable clamping, but also greatly improves the adaptability to different pipe diameters and irregularly shaped support rods, preventing slippage and detachment.

[0075] Example 3: As an optimization of the above examples, as shown in the appendix Figures 1 to 3 As shown in Figures 5 to 8, the clamping wheel assembly includes a clamping drive wheel 19 and at least one clamping driven wheel 20. The clamping drive wheel 19 and each clamping driven wheel 20 are rotatably mounted axially at intervals within the clamping wheel assembly mounting cavity. The clamping drive wheel 19 and each clamping driven wheel 20 are connected by a flexible member 15. Alignment notches are provided on the surface of the movable plate 13 corresponding to the positions of the clamping drive wheel 19 and each clamping driven wheel 20. The edge portions of the clamping drive wheel 19 and each clamping driven wheel 20 pass through the corresponding alignment notches and protrude from the surface of the movable plate 13. One end of the movable plate 13 is provided with a second drive groove communicating with the clamping wheel assembly mounting cavity. A clamping drive motor 21 is fixedly mounted in the second drive groove, and the output shaft of the clamping drive motor 21 is connected to the clamping drive wheel 19.

[0076] In the above technical solution, to achieve effective contact between the clamping drive wheel 19 and each clamping driven wheel 20 and the surface of the derrick support rod, clearance notches are respectively provided on the surface of the movable plate 13 at positions corresponding to the clamping drive wheel 19 and each clamping driven wheel 20. The edge portions of the clamping drive wheel 19 and each clamping driven wheel 20 pass through the corresponding clearance notches and protrude from the surface of the movable plate 13 so as to fit tightly against the surface of the derrick support rod during clamping. The output shaft of the clamping drive motor 21 is connected to the clamping drive wheel 19 for transmission, thereby providing independent rotational power for the clamping wheel system assembly.

[0077] In actual operation, the clamping wheel system assembly, together with the directional wheel system on the fixed plate 10, clamps the derrick support rod in a V-shape to provide stable support and clamping force. At the same time, the directional drive motor 17 and the clamping drive motor 21 drive the directional wheel system and the clamping wheel system respectively, so that the directional wheel system and the clamping wheel system can operate synchronously or differentially, thus forming a dual-side drive layout.

[0078] The above settings not only enable adaptive and stable clamping of derrick struts with different pipe diameters and cross-sectional shapes, but also significantly increase the contact area and axial crawling traction between the directional wheel system, the clamping wheel system and the derrick struts. This effectively prevents unilateral slippage and overall swaying, providing a highly stable motion platform for spraying and elastic scraping operations, and ensuring the continuity and consistency of cleaning operations.

[0079] Depending on the requirements, the wheel bodies of the clamping drive wheel 19 and the clamping driven wheel 20 are made of elastomeric materials, such as high-strength wear-resistant rubber or polyurethane composite materials, so that they can work stably for a long time in humid, dusty environments and environments containing cleaning fluid media.

[0080] Example 4: As an optimization of the above embodiments, as shown in the appendix. Figures 1 to 3 As shown in Figures 5 to 8, multiple smooth curved pits 22 are evenly distributed on the outer circumferential surfaces of the clamping drive wheel 19 and each clamping driven wheel 20. When the clamping drive wheel 19 and each clamping driven wheel 20 rotate, a local negative pressure is formed in the pits 22 to enhance the adhesion between the directional drive wheel 11 and each directional driven wheel 12 and the outer surface of the derrick support rod to be cleaned.

[0081] During use, when the present invention travels on the derrick support rod to be cleaned, under the drive of the clamping drive motor 21, the clamping drive wheel 19 and each clamping driven wheel 20 are driven to rotate and roll in contact on the outer surface of the derrick support rod, thereby periodically forming a local sealed space between the inner cavity of the smooth curved pit 22 and the outer surface of the derrick support rod.

[0082] During the rotation of the clamping drive wheel 19 and each clamping driven wheel 20, especially at the moment of rapid separation from the surface of the derrick support rod, the air in the locally confined space experiences rapid flow and pressure drop, thus forming a local negative pressure zone. This local negative pressure zone can generate a slight negative pressure adsorption effect, causing additional radial adhesion between the clamping drive wheel 19 and each clamping driven wheel 20 and the surface of the derrick support rod. This significantly enhances the adhesion between the clamping drive wheel 19 and each clamping driven wheel 20 and the smooth, slippery, vertical, or inclined surface of the derrick support rod, effectively preventing the wheel system from slipping, falling off, or spinning freely under complex working conditions. This ensures the stable and reliable movement of the invention and provides a stable operating reference for each nozzle 6 and the arc-shaped cleaning plate 7, enabling high-quality and continuous cleaning operations.

[0083] Depending on the requirements, the center of the smooth curved recess 22 is recessed inward along the radial direction of the wheel body, and the edge smoothly transitions with the outer peripheral surface of the wheel body, so that the interior of the recess 22 forms a smooth transition chamber similar to a bowl or a sphere. The shape of the recess 22 can be any one of elliptical, near-circular or circular.

[0084] Example 5: As an optimization of the above embodiments, as shown in the appendix Figure 7 , 9 As shown, the flexible element 15 is a synchronous toothed belt.

[0085] Depending on the requirements, the inner circumference of the synchronous toothed belt is provided with equally spaced teeth, which mesh with the synchronous pulley with corresponding tooth grooves to transmit motion and power. In this embodiment, the synchronous pulley can be an independent pulley mounted on the axle, or the pulley can be integrated with the drive pulley and the driven pulley. The tension of the synchronous toothed belt can be ensured by adjusting the installation position of the drive motor or by setting a tensioning pulley.

[0086] By using this configuration, precise synchronous transmission can be achieved through the meshing of the teeth of the synchronous toothed belt and the grooves of the pulley, effectively avoiding the elastic slippage and slippage that may occur during transmission with ordinary flat belts or V-belts. Synchronous toothed belt transmission has the advantages of no lubrication required, high transmission efficiency, smooth operation and low noise, which can further improve the overall reliability and transmission accuracy of the invention.

[0087] Example 6: As an optimization of the above embodiments, as shown in the appendix Figure 2 , 3 As shown in Figures 5 to 9, both the directional drive motor 17 and the pressing drive motor 21 are motors with waterproof and dustproof functions.

[0088] In the above technical solution, to adapt to complex and harsh working environments, both the directional drive motor 17 and the clamping drive motor 21 are selected as motors with waterproof and dustproof functions. Depending on the requirements, the motor can be a sealed motor with a protection rating of not less than IP 65, with sealing gaskets at the joints of its housing and a mechanical seal or skeleton oil seal at the output shaft to effectively prevent external moisture, dust, and impurities from entering the motor's interior; the sealed motor can be a DC motor, a stepper motor, or a servo motor.

[0089] By using a motor with waterproof and dustproof functions, not only can the directional drive motor 17 and the pressing drive motor 21 be ensured to operate stably in humid, dusty or liquid-splashed conditions, avoiding equipment failures caused by internal water ingress short circuits or dust accumulation and jamming; it can also significantly improve the environmental adaptability and operational reliability of the drive system, effectively extend the service life of the motor, and reduce the maintenance frequency and downtime risk of the present invention.

[0090] Example 7: As an optimization of the above embodiments, as shown in the appendix Figure 1 , 2 As shown in Figures 3, 6, 8, and 9, an automatic pumping mechanism is provided between the fixed plate 10 and the lower guard plate 2. The automatic pumping mechanism includes a support pad 23 and an inlet pipe 24. The support pad 23 is installed on the side of the fixed plate 10 facing the lower guard plate 2 via a bracket 25. A U-shaped groove 26 with an opening facing the fixed plate 10 and extending along the length direction is opened on the support pad 23 at the positions corresponding to the directional drive wheel 11 and the directional driven wheel 12. Pipes are respectively opened on the lower guard plate 2 at the positions corresponding to the two ends of the support pad 23. The inlet pipe 24 is made of elastic material and passes through two pipe holes 27 at both ends. The part of the inlet pipe 24 located between the two pipe holes 27 is laid along the U-shaped groove 26. The outlet end of the inlet pipe 24 is connected to the water tank 3 outside the lower guard plate 2. The bottom of the directional drive wheel 11 and the directional driven wheel 12 are in squeezing contact with the inlet pipe 24. When the directional drive wheel 11 and the directional driven wheel 12 rotate, they squeeze the inlet pipe 24 to deform it, so as to realize automatic pumping.

[0091] In the above technical solution, the automatic pumping mechanism realizes the automatic delivery of cleaning fluid based on the working principle of peristaltic pump. It cleverly utilizes the rotation of the directional drive wheel 11 and the directional driven wheel 12 to replenish the delivery of cleaning fluid, without the need for an additional independent power pump source. The structure is compact and energy-saving.

[0092] To accommodate the routing of the inlet pipe 24, pipe through holes 27 are provided on the lower guard plate 2 at the positions corresponding to both ends of the support pad 23. The inlet pipe 24 is made of an elastic material, such as silicone tubing or rubber tubing, possessing good compressive deformation and automatic rebound capabilities. During installation, both ends of the inlet pipe 24 pass through the corresponding pipe through holes 27, and the portion between the two pipe through holes 27 is laid along the U-shaped groove 26, thus confining the inlet pipe 24 within the U-shaped groove 26, ensuring the regular routing of the inlet pipe 24, and preventing lateral displacement under pressure. To reduce the weight of the support pad 23 and optimize the overall structure, only the support section located below the directional drive wheel 11 and the directional driven wheel 12 can be retained, while the middle portion located between the directional drive wheel 11 and the directional driven wheel 12 can be cut off.

[0093] After assembly, the bottoms of the directional drive wheel 11 and the directional driven wheel 12 are in compression contact with the inlet pipe 24. That is, the contact point between the inlet pipe 24 and the directional drive wheel 11 and the directional driven wheel 12 has undergone radial deformation under natural conditions. For example, if the pipe body is moderately flattened, pressure closure occurs. The inlet end of the inlet pipe 24 is connected to the cleaning fluid tank, and the outlet end is connected to the water tank 3. Before operation, the two water tanks 3 can be pre-filled with cleaning fluid through the inlet port 5, and then the inlet port 5 can be sealed to save cleaning fluid filling time.

[0094] During operation, the directional drive wheel 11 and the directional driven wheel 12 are driven to rotate. Their bottom rims roll along the axial direction of the inlet pipe 24 while maintaining a squeezing contact with it. During the rolling process, the directional drive wheel 11 and the directional driven wheel 12 periodically squeeze and release the elastic wall of the inlet pipe 24. That is, the bottom of the directional drive wheel 11 and the directional driven wheel 12 can periodically roll over the part of the inlet pipe 24 located in the U-shaped groove 26, continuously squeezing this section of the inlet pipe 24 to cause radial deformation, resulting in the inlet pipe 24 being closed by pressure, thereby pushing the cleaning fluid inside it to the outlet end. After the directional drive wheel 11 and the directional driven wheel 12 have rolled over, the inlet pipe 24 quickly rebounds and returns to its original shape under the action of its own elastic restoring force. The volume inside the inlet pipe 24 expands, generating a local negative pressure, thereby drawing in cleaning fluid from the cleaning fluid tank through its inlet end. As the directional drive wheel 11 and the directional driven wheel 12 rotate continuously, the liquid inlet pipe 24 repeatedly undergoes the squeezing-rebound process, thereby forming a continuous volume change, realizing the continuous and directional intake and discharge of cleaning fluid, and completing the automatic pumping process.

[0095] When the crawling speed of this invention is relatively fast, the rolling frequency of the directional drive wheel 11 and the directional driven wheel 12 increases accordingly, shortening the squeezing and releasing cycle of the inlet pipe 24, thereby increasing the pumping flow rate of the cleaning fluid. Conversely, when the crawling speed of this invention is relatively slow, the rotation speed of the directional drive wheel 11 and the directional driven wheel 12 decreases, extending the squeezing and releasing cycle of the inlet pipe 24, and consequently reducing the pumping flow rate. When this invention stops moving, the directional drive wheel 11 and the directional driven wheel 12 stop rotating, stopping the delivery of cleaning fluid. This ensures that the supply of cleaning fluid is proportional to the actual crawling distance, automatically matching the supply of cleaning fluid with the moving speed of this invention, ensuring accurate and on-demand addition of cleaning fluid, effectively avoiding waste of cleaning fluid, effectively reducing the cost of cleaning agents, reducing waste fluid generation, mitigating liquid residue and environmental pollution on the derrick surface, and significantly improving the economy and environmental friendliness of cleaning operations.

[0096] Example 8: As an optimization of the above embodiments, as shown in the appendix Figure 2 , 9 As shown, the wheel width of the directional drive wheel 11 and the directional driven wheel 12 is greater than the opening width of the U-shaped groove 26. The support pad 23 has a relief groove 35 that is adapted to the bottom of the directional drive wheel 11 and the directional driven wheel 12 at the corresponding positions. The bottom of the relief groove 35 is connected to the U-shaped groove 26.

[0097] With this configuration, there is no need to consider the fit between the wheel widths of the directional drive wheel 11 and the directional driven wheel 12 and the opening width of the U-shaped groove 26. This ensures that the main bodies of the directional drive wheel 11 and the directional driven wheel 12 do not completely sink into the U-shaped groove 26; only their bottom rims can smoothly pass through the clearance groove 35 to effectively compress the inlet pipe 24 located in the U-shaped groove 26, thus realizing the function of the peristaltic pump closing the pipeline and ensuring efficient and continuous delivery of the cleaning fluid. Because the wheel width is allowed to be greater than the opening width of the U-shaped groove 26, the contact area between the directional drive wheel 11, the directional driven wheel 12 and the surface of the derrick support rod can be significantly increased, thereby providing more sufficient friction and effectively preventing slippage during the movement of the invention, ensuring the overall smooth and reliable operation of the invention.

[0098] According to the requirements, in order to avoid wear on the wheel body, a gap is left between the bottom of the wheel body and the bottom of the relief groove 35; in order to avoid backflow or leakage of cleaning fluid in the inlet pipe 24 due to incomplete pipe closure or insufficient stroke, the depth of the relief groove 35 needs to take into account the squeezing stroke of the inlet pipe 24.

[0099] Example 9: As an optimization of the above embodiments, as shown in the appendix Figure 1 , 7As shown in Figures 9 and 10, each fixed plate 10 has a rope hole 28 at one end near the arc-shaped cleaning plate 7, which communicates with the directional wheel system mounting cavity 14. A pull rope 29 is inserted into the rope hole 28. One end of the pull rope 29 is connected to the circumference of the outer edge of the wheel axle end face 30 of the corresponding directional driven wheel 12, and the other end of the pull rope 29 is fixedly connected to the front area of ​​the arc-shaped cleaning plate 7.

[0100] In the above technical solution, one end of the pull rope 29 is eccentrically connected to the circumference of the outer edge of the wheel axle end face 30 of the corresponding directional driven wheel 12, and the other end is fixedly connected to the inner wall of the elastic arc-shaped cleaning plate 7. The pull rope 29, the wheel axle, and the arc-shaped cleaning plate 7 together constitute a crank-slider type reciprocating traction mechanism. By utilizing the eccentricity of the wheel axle end face 30, the uniform rotational motion of the directional driven wheel 12 is converted into the reciprocating linear motion of the pull rope 29 along the axial direction. The structure is simple and the reliability is high.

[0101] During operation, the reciprocating linear motion of the three pull ropes 29 pulls the front of the elastic trumpet-shaped cleaning plate, causing it to vibrate at a high frequency against the derrick support rod to be cleaned. This converts the rotational driving force of the directional driven wheel 12 axle into the high-frequency vibration required for cleaning, effectively enhancing the trumpet-shaped cleaning plate's ability to scrape away residual dirt and liquid film softened by spraying, significantly improving the cleaning efficiency of physical scrubbing. Furthermore, the energy generated by the high-frequency vibration helps to shake off particulate impurities adhering to the inner wall of the arc-shaped cleaning plate 7, giving it self-cleaning capabilities. It also effectively prevents hard particles from scratching the coating on the derrick support rod surface during scrubbing, thus protecting the derrick support rod.

[0102] Example 10: As an optimization of the above embodiment, the quick connector is a quick locking mechanism, which includes any one of a latch-type quick clamp, a latch lock, a pin, or a snap fastener.

[0103] With this configuration, once the upper guard plate 1 and lower guard plate 2 are closed, the two guard plates can be instantly locked together simply by engaging the quick-locking mechanism. The quick-locking mechanism not only provides reliable locking force, preventing the guard plates from springing open due to vibration or internal pressure during operation, but also completely eliminates the cumbersome operation of traditional bolt connections that require tools such as wrenches, achieving tool-free quick assembly and disassembly, greatly improving the efficiency of on-site assembly and subsequent maintenance of this invention.

[0104] Example 11: As an optimization of the above embodiments, as shown in the appendix Figures 1 to 4 As shown, the nozzle 6 has a flexible tube that can be bent to adjust the spray direction.

[0105] In the above technical solution, the nozzle 6 has a flexible tube body, which can undergo plastic deformation under external force, thereby changing the orientation of the nozzle 6 outlet. The tube body has a bendable deformation structure, which can be any of the following: a composite tube body of a flexible inner tube and a bendable metal sleeve, a metal corrugated tube, a universal ball joint structure, a universal joint hose, or a shapeable universal tube. In actual use, a spray-capable universal serpentine nozzle, a coolant nozzle, an angled high-pressure nozzle, or an adjustable plastic cooling pipe can be selected.

[0106] During use, the tube can be bent to a specific angle, ensuring its spray direction is precisely aimed at a specific area on the surface of the derrick support rod to be cleaned. Before the arc-shaped cleaning blade 7 performs physical scrubbing, the oil, mud, and other deposits on the derrick support rod surface are pre-wetted, softened, and dissolved, making the subsequent physical scraping by the arc-shaped cleaning blade 7 easier and more thorough. This pretreatment process significantly reduces the adhesion of the deposits, creating favorable conditions for the subsequent physical scrubbing by the funnel-shaped cleaning blade, thereby greatly improving the cleaning efficiency and effect of the derrick support rod and effectively solving the problem of difficult-to-remove dried sludge.

[0107] Meanwhile, combined with the layout structure of the present invention, multiple nozzles 6 distributed at intervals along the circumference work together to form a surrounding jet flow field, which can ensure that the atomized cleaning fluid can fully cover the outer surface of the derrick support rod to be cleaned. While achieving targeted cleaning of specific key areas, it also takes into account the overall full coverage cleaning, avoiding waste of cleaning fluid and ensuring effective coverage of cleaning fluid.

[0108] Example 12: As an optimization of the above embodiments, as shown in the appendix Figure 5 , 6 As shown, an insert 31 is provided axially in the middle of the other fastening surface of the upper guard plate 1 away from the hinge side, and a slot 32 that matches the insert 31 is provided on the other fastening surface of the lower guard plate 2 at the position corresponding to the insert 31.

[0109] During use, when the upper guard plate 1 and the lower guard plate 2 are closed around the hinge, the insert 31 can be accurately inserted into the slot 32 to form a plug-in fit; then, the upper and lower guard plates 2 are locked and fixed by the quick connector.

[0110] The positioning and engagement structure of the insert 31 and the slot 32 can play a good guiding and positioning role during the closing process, ensuring that the fastening surfaces of the upper guard plate 1 and the lower guard plate 2 are accurately aligned, thus improving the assembly accuracy. With the quick-connect parts, it can not only achieve reliable locking after the upper guard plate 1 and the lower guard plate 2 are closed, preventing radial misalignment or accidental pop-out of the two guard plates under internal pressure or external vibration and impact, but also eliminate the drawback of the traditional bolt connection that requires cumbersome disassembly and assembly with tools, thus realizing the quick opening and closing of the two guard plates.

[0111] This design combines hinged opening and closing, insert positioning, and quick locking, balancing assembly accuracy, structural stability, and ease of operation, thus significantly improving the maintenance efficiency and operational reliability of the invention under field conditions.

[0112] The above technical features constitute various embodiments of the present invention, which have strong adaptability and implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. A spray atomization and scrubbing combined device for cleaning the surface of derrick struts, characterized in that... It includes an upper guard plate and a lower guard plate that are semi-circular and have openings facing each other. One side of the upper guard plate is hinged to one side of the lower guard plate, and the other side of the upper guard plate is connected to the other side of the lower guard plate through a quick connector. The openings of the upper guard plate and the lower guard plate are fastened together to form an annular enclosed space that is open at both ends. The annular enclosed space is equipped with three clamping components that are evenly distributed around the circumference and have a walking drive mechanism. One clamping component is located inside the lower guard plate, and the other two clamping components are evenly distributed inside the upper guard plate. Each clamping component is connected to the upper guard plate or the lower guard plate through a linear actuator, and can move radially to clamp the derrick support rod to be cleaned. In the clamping state, it drives the upper guard plate and the lower guard plate to move along the length direction of the derrick support rod to be cleaned. Water tanks are installed on the outer side of one end of the upper and lower protective plates. The shape of the water tanks is adapted to the shape of the corresponding upper or lower protective plate. The two water tanks are connected by pipes. The water tank on the outer side of the upper protective plate is provided with a liquid inlet. Multiple nozzles with adjustable spray direction are connected to the outer side wall of the two water tanks at intervals along the circumference. The other ends of the upper and lower guard plates are fixedly installed with arc-shaped cleaning plates made of elastic material; the arc length of the arc-shaped cleaning plate at one end near the upper or lower guard plate is greater than the arc length at the other end, and the openings of the two arc-shaped cleaning plates are interlocked to form a trumpet-shaped cleaning plate. The minimum inner diameter of the trumpet-shaped cleaning plate is smaller than the maximum lateral dimension of the well frame support rod to be cleaned. The linear actuator includes a first linear actuator and a second linear actuator; the clamping assembly with a walking drive mechanism includes a fixed plate, a directional drive wheel, a directional driven wheel, and a movable plate. The fixed plate is arranged along the axial direction of the upper or lower guard plate. At least two first linear actuators are arranged axially between the fixed plate and the upper or lower guard plate. The protruding end of each first linear actuator is fixedly connected to the corresponding position of the fixed plate. Corresponding to the position of each first linear actuator, the upper or lower guard plate is provided with an inner and outer through clearance hole. The other end of each first linear actuator passes through the corresponding clearance hole and is fixedly installed at the clearance hole. The fixed plate has an axially oriented wheel system mounting cavity. An axially spaced, rotatably mounted oriented drive wheel and at least one oriented driven wheel are mounted within the cavity. The oriented drive wheel and each oriented driven wheel are connected via a flexible transmission element. The surface of the fixed plate has clearance notches corresponding to the positions of the oriented drive wheel and each oriented driven wheel. The edges of the oriented drive wheel and each oriented driven wheel pass through the corresponding clearance notches and protrude from the surface of the fixed plate. One end of the fixed plate has a first drive groove communicating with the oriented wheel system mounting cavity. An oriented drive motor is fixedly mounted within the first drive groove, and the output shaft of the oriented drive motor is connected to the oriented drive wheel via a transmission connection. The movable plate is hinged to the fixed plate. At least two second linear actuators are provided axially between the movable plate and the upper or lower guard plate. The extended end of the second linear actuator is hinged to the corresponding position of the movable plate. For each position of the second linear actuator, the upper or lower guard plate is provided with a through strip groove. The strip groove is arranged along the circumference of the upper or lower guard plate. The other end of each second linear actuator passes through the corresponding strip groove and can be rotatably installed on the inner side of the middle of the strip groove. The movable plate has a clamping wheel system mounting cavity along the axial direction, and a clamping wheel system assembly is installed in the clamping wheel system mounting cavity. An avoidance notch is opened on the surface of the movable plate, and the wheel body edge of the clamping wheel system assembly passes through the avoidance notch and protrudes from the surface of the movable plate. An automatic pumping mechanism is installed between the fixed plate and the lower guard plate. The automatic pumping mechanism includes a support pad and an inlet pipe. The support pad is mounted on the side of the fixed plate facing the lower guard plate via a bracket. A U-shaped groove with an opening facing the fixed plate and extending along the length direction is opened on the support pad at the positions corresponding to the directional drive wheel and the directional driven wheel. Pipe holes are opened on the lower guard plate at the positions corresponding to the two ends of the support pad. The inlet pipe is made of elastic material, and its two ends pass through the two pipe holes respectively. The part of the inlet pipe located between the two pipe holes is laid along the U-shaped groove. The outlet end of the inlet pipe is connected to the water tank on the outside of the lower guard plate. The bottoms of the directional drive wheel and the directional driven wheel are in pressure contact with the inlet pipe. When the directional drive wheel and the directional driven wheel rotate, they squeeze the inlet pipe to deform it, thereby realizing automatic pumping.

2. The spray atomization and scrubbing combined device for cleaning the surface of the derrick support rod according to claim 1, characterized in that, The clamping wheel system assembly includes a clamping drive wheel and at least one clamping driven wheel. The clamping drive wheel and each clamping driven wheel are rotatably mounted axially spaced within the clamping wheel system mounting cavity. The clamping drive wheel and each clamping driven wheel are connected by a flexible transmission component. On the surface of the movable plate, clearance notches are provided at the positions corresponding to the clamping drive wheel and each clamping driven wheel. The edge portions of the clamping drive wheel and each clamping driven wheel pass through the corresponding clearance notches and protrude from the surface of the movable plate. One end of the movable plate is provided with a second drive groove that communicates with the mounting cavity of the pressure wheel system. A pressure drive motor is fixedly installed in the second drive groove, and the output shaft of the pressure drive motor is connected to the pressure drive wheel.

3. The spray atomization and scrubbing combined device for cleaning the surface of derrick struts according to claim 2, characterized in that, Multiple smooth curved pits are evenly distributed on the outer circumferential surface of the clamping drive wheel and each clamping driven wheel. When the clamping drive wheel and each clamping driven wheel rotate, a local negative pressure is formed in the pits to enhance the adhesion between the directional drive wheel and each directional driven wheel and the outer surface of the derrick support rod to be cleaned. Or / and, the flexible element is a synchronous toothed belt; Or / and, both the directional drive motor and the clamping drive motor are motors with waterproof and dustproof functions.

4. The spray atomization and scrubbing combined device for cleaning the surface of derrick support rods according to claim 1, 2, or 3, characterized in that, The width of the directional drive wheel and the directional driven wheel is greater than the opening width of the U-shaped groove. The support pad has a clearance groove on the position corresponding to the directional drive wheel and the directional driven wheel, which is adapted to the bottom of the directional drive wheel and the directional driven wheel. The bottom of the clearance groove is connected to the U-shaped groove.

5. The spray atomization and scrubbing combined device for cleaning the surface of derrick support rods according to claim 1, 2, or 3, characterized in that, Each fixed plate has a rope hole at one end near the arc-shaped cleaning plate that communicates with the mounting cavity of the directional wheel system. A pull rope is threaded through the rope hole. One end of the pull rope is connected to the circumference of the outer edge of the wheel axle end face of the corresponding directional driven wheel, and the other end of the pull rope is fixedly connected to the front area of ​​the arc-shaped cleaning plate.

6. The spray atomization and scrubbing combined device for cleaning the surface of derrick struts according to claim 4, characterized in that, Each fixed plate has a rope hole at one end near the arc-shaped cleaning plate that communicates with the mounting cavity of the directional wheel system. A pull rope is threaded through the rope hole. One end of the pull rope is connected to the circumference of the outer edge of the wheel axle end face of the corresponding directional driven wheel, and the other end of the pull rope is fixedly connected to the front area of ​​the arc-shaped cleaning plate.

7. The spray atomization and scrubbing combined device for cleaning the surface of derrick struts according to claim 1, 2, 3, or 6, characterized in that, The quick-connector is a quick-locking mechanism, which includes any one of a latch-type quick-clamp, a latch lock, a pin, or a snap-lock. Or / and, the nozzle tube can be bent and deformed to adjust the spray direction; Or / and, on the upper guard plate, a strip is provided axially in the middle of the other fastening surface opposite to the hinge side, and on the other fastening surface of the lower guard plate, a slot adapted to the strip is provided at the position corresponding to the strip.

8. The spray atomization and scrubbing combined device for cleaning the surface of derrick struts according to claim 5, characterized in that, The quick-connector is a quick-locking mechanism, which includes any one of a latch-type quick-clamp, a latch lock, a pin, or a snap-lock. Or / and, the nozzle tube can be bent and deformed to adjust the spray direction; Or / and, on the upper guard plate, a strip is provided axially in the middle of the other fastening surface opposite to the hinge side, and on the other fastening surface of the lower guard plate, a slot adapted to the strip is provided at the position corresponding to the strip.

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