Mechanical hydraulic composite drive flow control device

Abstract

The invention relates to the technical field of flow control, and discloses a mechanical hydraulic composite drive flow control device which comprises a bearing mechanism, a shell, a supporting table fixedly installed on the top of the shell, a servo motor fixedly installed on the top of the supporting table and a flow control assembly arranged at the bottom of the servo motor. By means of the rigid linkage design of the scraping assembly and the valve element, synchronous cleaning of the scraping strip on the guide pipe is achieved when the valve element acts every time, the rotational flow effect is generated through the composite structure of the spiral groove and the round corner, and gap pollutants are forcibly guided into the rectangular groove channel; a graded filtering system of the adsorption and collection mechanism captures pollutants with different properties in a classified mode through a magnetic adsorption block and a collection groove, an active self-cleaning mechanism is formed through the synergistic effect of the structures, the accumulation hidden danger of gap pollutants is eliminated, a valve element is always kept in the optimal motion state through dynamic cleaning, the control precision is effectively improved, and the service life is prolonged. And the service life of the device is effectively prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of flow control, in particular to a mechanical-hydraulic compound drive flow control device. Background Art

[0002] A mechanical-hydraulic hybrid flow control device is a fluid power regulation device that integrates electromechanical signals with hydraulic power. Its main structure typically consists of a servo motor (or stepper motor), a hydraulic pump / valve group (such as an axial piston variable displacement pump or an electro-hydraulic proportional valve), a high-precision flow sensor, and a mechanical transmission mechanism (such as a ball screw or gearbox). The operating principle is that the motor receives control signals to drive the mechanical transmission components, thereby changing the geometric displacement or throttle opening of the hydraulic element, thereby physically adjusting the flow parameters of the working medium (hydraulic oil).

[0003] In current applications of mechanical-hydraulic composite drive flow control devices, fine contaminants gradually accumulate in the clearance between the valve core moving parts, resulting in a partially stuck viscous state. This phenomenon can cause valve hysteresis and slow control response, while also requiring the drive mechanism to apply additional thrust to maintain normal operation. Because these contaminants develop slowly and initially do not affect basic system functions, conventional monitoring often goes undetected. However, as contaminants continue to accumulate, they eventually lead to reduced control accuracy, increased energy consumption, and accelerated component wear, posing a potential threat to system reliability and service life. Summary of the Invention

[0004] In view of the above problems existing in the existing mechanical hydraulic compound drive flow control device, the present invention is proposed.

[0005] Therefore, an object of the present invention is to provide a mechanical-hydraulic compound drive flow control device.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising: The bearing mechanism includes a housing, a support platform fixedly mounted on the top of the housing, a servo motor fixedly mounted on the top of the support platform, and a flow control assembly arranged at the bottom of the servo motor; The cleaning mechanism comprises a tube body, a drainage component arranged at the bottom of the tube body, and a scraping component arranged in the inner cavity of the drainage component; The drainage assembly includes a guide tube and a rectangular groove vertically opened on the inner wall of the guide tube; and an adsorption collection mechanism that cooperates with the cleaning mechanism to collect particles.

[0007] As a preferred solution of the mechanical-hydraulic compound drive flow control device of the present invention, the drainage component further includes a spiral groove formed on the inner wall of the rectangular channel and a rounded corner formed in the inner cavity of the rectangular channel.

[0008] As a preferred solution of the mechanical hydraulic compound drive flow control device described in the present invention, the flow control component includes a pipe fixedly installed in the inner cavity of the shell, a valve stem fixedly connected to the output end of the servo motor, and a valve core fixedly installed at the bottom of the valve stem.

[0009] As a preferred solution of the mechanical hydraulic compound drive flow control device of the present invention, the flow control component also includes an arc groove opened on the outside of the valve core for controlling the flow in and out, and a groove opened at the bottom of the valve core.

[0010] As a preferred solution of the mechanical hydraulic compound drive flow control device described in the present invention, the scraping assembly includes a fixed block fixedly installed at the bottom of the valve core, a connecting block fixedly installed at the bottom of the fixed block, and a cross bar fixedly installed on the outside of the connecting block.

[0011] As a preferred solution of the mechanical hydraulic compound drive flow control device described in the present invention, the scraping assembly also includes a scraping bar fixedly installed at the bottom of the cross bar, a connecting rod fixedly installed at the bottom of the scraping bar, and a limiting clamping rod fixedly installed at the bottom of the connecting rod, and the limiting clamping rod is movably clamped in the inner cavity of the groove.

[0012] As a preferred solution of the mechanical hydraulic compound drive flow control device described in the present invention, the adsorption and collection mechanism includes a connecting pipe threadedly installed at the bottom of the guide pipe, a threaded groove opened on the outside of the connecting pipe, a collection box fixedly installed on the top of the connecting pipe, a magnetic adsorption block fixedly installed on the top of the collection box, and collection grooves opened around the top of the collection box.

[0013] As a preferred solution of the mechanical-hydraulic compound drive flow control device described in the present invention, the supporting mechanism also includes a detection feedback device fixedly installed on the top of the shell, a pressure gauge fixedly installed on the outside of the support platform, a water inlet pipe fixedly installed on one side of the shell, and a water outlet pipe fixedly installed on the other side of the shell.

[0014] As a preferred solution of the mechanical hydraulic compound drive flow control device described in the present invention, the end of the water inlet pipe is fixedly connected to one side of the pipeline and communicated with each other, and the end of the water outlet pipe is fixedly connected to the other side of the pipeline and communicated with each other.

[0015] As a preferred solution of the mechanical-hydraulic compound drive flow control device of the present invention, the top of the guide pipe and the bottom of the pipe body are fixedly connected and communicated with each other.

[0016] The beneficial effects of the present invention are as follows: through the rigid linkage design of the scraping assembly and the valve core, the scraping strip can synchronously clean the guide tube every time the valve core moves; the composite structure of the spiral groove and the rounded corner produces a vortex effect, forcing the gap pollutants into the rectangular groove; the graded filtration system of the adsorption and collection mechanism captures pollutants of different properties through magnetic adsorption blocks and collection troughs; these structures work together to form an active self-cleaning mechanism, which not only eliminates the hidden dangers of accumulation of gap pollutants, but also keeps the valve core in the best movement state at all times through dynamic cleaning, effectively improving the control accuracy and effectively extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them: Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the overall structure of the present invention from another perspective.

[0019] Figure 3 It is a partial schematic diagram of the drainage component structure of the present invention.

[0020] Figure 4 It is a partial cross-sectional view of the overall structure of the present invention.

[0021] Figure 5 It is a partial schematic diagram of the scraping component structure of the present invention.

[0022] Figure 6 It is a partial cross-sectional view of the scraping component structure of the present invention.

[0023] Figure 7 It is a structural schematic diagram of the adsorption and collection mechanism of the present invention.

[0024] In the picture: 100, bearing mechanism; 110, housing; 120, support platform; 130, servo motor; 140, flow control assembly; 141, pipe; 142, valve stem; 143, valve core; 144, arc-shaped groove; 145, groove; 150, detection feedback device; 160, pressure gauge; 170, water inlet pipe; 180, water outlet pipe; 200, cleaning mechanism; 210, tube body; 220, drainage assembly; 221, guide tube; 222, rectangular channel; 223, spiral groove; 224, rounded corner; 230, scraping assembly; 231, fixing block; 232, connecting block; 233, crossbar; 234, scraping strip; 235, connecting rod; 236, limit lever; 300. Adsorption and collection mechanism; 310. Connecting tube; 320. Threaded groove; 330. Collection box; 340. Magnetic adsorption block; 350. Collection tank. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0028] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0029] Example 1 Reference Figures 1 to 7 , which is the first embodiment of the present invention, provides a mechanical hydraulic compound drive flow control device, which includes: The carrying mechanism 100 includes a housing 110, a support platform 120 fixedly mounted on the top of the housing 110, a servo motor 130 fixedly mounted on the top of the support platform 120, and a flow control assembly 140 disposed at the bottom of the servo motor 130; The cleaning mechanism 200 includes a tube body 210, a drainage component 220 disposed at the bottom of the tube body 210, and a scraping component 230 disposed in the inner cavity of the drainage component 220; The drainage assembly 220 includes a guide tube 221 and a rectangular channel 222 vertically opened on the inner wall of the guide tube 221; And, an adsorption collection mechanism 300 that cooperates with the cleaning mechanism 200 to collect particles.

[0030] Among them, through the coordinated cooperation of the supporting mechanism 100 and the cleaning mechanism 200, a set of mechanical and hydraulic dual-linkage intelligent control systems is constructed. While the servo motor 130 drives the flow control component 140 to adjust the main flow, the tube body 210 and the drainage component 220 form a secondary cleaning flow channel, realizing the mechanical linkage between the main valve action and auxiliary cleaning. The special design of the rectangular groove 222 provides a directional channel for the transfer of pollutants between the main and secondary flow channels.

[0031] Specifically, the drainage component 220 further includes a spiral groove 223 formed on the inner wall of the rectangular channel 222 and a rounded corner 224 formed in the inner cavity of the rectangular channel 222 .

[0032] Among them, the composite design of the spiral groove 223 and the rounded corner 224 enables the drainage component 220 to have efficient diversion characteristics. When the main valve core 143 moves, the spiral groove 223 will produce a swirl effect, and the particles attached to the surface of the valve core 143 will be smoothly introduced into the clean flow channel along the rounded corner 224, which not only avoids secondary scratches but also improves the particle removal efficiency, forming a dynamic self-maintaining hydraulic flow field environment.

[0033] Furthermore, the flow control assembly 140 includes a pipe 141 fixedly installed in the inner cavity of the shell 110, a valve stem 142 fixedly connected to the output end of the servo motor 130, and a valve core 143 fixedly installed at the bottom of the valve stem 142. The flow control assembly 140 also includes an arc-shaped groove 144 opened on the outside of the valve core 143 for controlling the flow in and out, and a groove 145 opened at the bottom of the valve core 143.

[0034] The rigid connection between the valve stem 142 and the valve core 143 ensures the precise transmission of the main valve's motion. The fixed installation of the pipe 141 provides a stable structural foundation for the coordinated operation of the main and auxiliary valves. When the servo motor 130 drives the valve stem 142 to move, it not only accurately adjusts the flow of the medium passing through the arc-shaped groove 144, but also drives the scraper assembly 230 at the bottom to move synchronously through mechanical linkage. The streamlined design of the arc groove 144 ensures the accuracy of flow regulation while its special opening shape can guide the medium to form local turbulence, which helps to peel off the attachments on the surface of the valve core 143. The layout of the groove 145 cleverly provides a docking interface for the scraping component 230, so that the linear motion of the main valve core 143 can be converted into a composite cleaning action of the scraping component 230.

[0035] Preferably, the scraping assembly 230 includes a fixed block 231 fixedly mounted on the bottom of the valve core 143, a connecting block 232 fixedly mounted on the bottom of the fixed block 231, and a cross bar 233 fixedly mounted on the outside of the connecting block 232. The scraping assembly 230 also includes a scraping strip 234 fixedly mounted on the bottom of the cross bar 233, a connecting rod 235 fixedly mounted on the bottom of the scraping strip 234, and a limiting clamping rod 236 fixedly mounted on the bottom of the connecting rod 235. The limiting clamping rod 236 is movably mounted in the inner cavity of the groove 145.

[0036] Among them, the transmission chain composed of the fixed block 231 and the connecting block 232 converts the axial movement of the valve core 143 into the radial cleaning action of the cross rod 233. This motion conversion mechanism enables the scraper bar 234 to automatically scrape and clean the inner wall of the drainage component 220 every time the main valve completes a flow adjustment, thereby realizing precise mechanical synchronization of the main and auxiliary valve actions. The scraper bar 234 forms an elastic pressure mechanism through the connecting rod 235 and the limit clamp rod 236. Under the constraint of the groove 145, it can maintain a stable scraping contact force and automatically avoid when encountering large particles. The intelligently adjusted cleaning pressure not only ensures the cleaning effect, but also avoids excessive wear, greatly extending the maintenance cycle.

[0037] Furthermore, the top of the tube body 210 is fixedly connected to the bottom of the pipe 141 and communicates with each other, and the top of the guide tube 221 is fixedly connected to the bottom of the tube body 210 and communicates with each other.

[0038] Among them, the stepped connection design of the tube body 210 and the guide tube 221 enables the cleaning flow channel and the main flow channel to remain independent and organically unified. When the valve core 143 moves up and down, the pressure fluctuation in the pipeline 141 will be transmitted to the guide tube 221 through the tube body 210, forming a pulsed cleaning force wave, which significantly improves the particle stripping efficiency of the spiral groove 223.

[0039] During use, when the servo motor 130 drives the valve stem 142 to drive the valve core 143 to move up and down to adjust the flow, the groove 145 at the bottom of the valve core 143 is linked to the scraping assembly 230 through the limit rod 236, so that the scraping bar 234 performs a synchronous scraping movement on the inner wall of the guide tube 221; at the same time, the movement of the valve core 143 generates hydraulic fluctuations in the pipeline 141, forming a pulsed cleaning force, and the spiral groove 223 separates the impurity particles into a cyclone, and introduces them into the adsorption and collection mechanism 300 for graded treatment through the rectangular groove 222, thereby realizing the synchronous closed-loop operation of flow regulation and self-cleaning. The whole process forms an intelligent working cycle of mechanical motion triggering, hydraulic fluctuation assistance, spiral flow channel separation and magnetic suction graded collection.

[0040] In summary, when the servo motor 130 drives the valve core 143 to adjust the flow, the linear motion of the valve stem 142 is synchronously converted into a radial scraping action of the scraper bar 234 through the connecting rod mechanism of the scraping assembly 230. At the same time, the spiral groove 223 forms a swirl effect with the help of the hydraulic pulsation generated by the movement of the valve core 143, so that the particles in the main valve enter the adsorption and collection mechanism 300 along the rounded corner 224 through the rectangular groove 222. This dual action mechanism of mechanical transmission and fluid dynamics enables the device to automatically remove more than 90% of the attached particles in the valve body while completing precise flow control, effectively extending the maintenance cycle, and the entire process does not require additional energy consumption, truly realizing the self-maintenance function.

[0041] Example 2 Reference Figure 2 and Figure 7 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that it realizes the adsorption collection mechanism 300 for automatic classification and collection of pollutants.

[0042] Furthermore, the adsorption and collection mechanism 300 includes a connecting tube 310 threadedly installed at the bottom of the guide tube 221, a threaded groove 320 opened on the outside of the connecting tube 310, a collection box 330 fixedly installed on the top of the connecting tube 310, a magnetic adsorption block 340 fixedly installed on the top of the collection box 330, and a collection groove 350 opened around the top of the collection box 330.

[0043] Among them, the coordinated design of the magnetic adsorption block 340 and the collection tank 350 constructs a graded filtration system. The pollutants guided down by the spiral groove 223 are first captured by the magnetic adsorption block 340 as iron filings, and the remaining particles settle into the collection tank 350. The threaded detachable structure facilitates regular cleaning, realizing the active collection and centralized treatment of pollutants.

[0044] During use, when the system is running, the oil swirl guided by the spiral groove 223 will cause the impurities to be thrown toward the pipe wall in the tangential direction. Under the action of centrifugal force, the magnetic particles are captured by the magnetic adsorption block 340, and the heavier non-metallic particles are settled into the collection tank 350. The entire collection process does not require additional power and is completely completed by the system's own fluid dynamic characteristics.

[0045] In summary, quick disassembly and maintenance are achieved through the threaded connection between the connecting tube 310 and the guide tube 221. The design of the threaded groove 320 ensures both sealing and ease of manual operation. The collection box 330 adopts a layered collection structure. The magnetic adsorption block 340 on the top can effectively capture ferromagnetic particles in the oil, while the collection grooves 350 arranged around it are used to collect non-magnetic impurities. This two-stage filtration mechanism enables pollutants of different properties to be treated in a targeted manner.

[0046] Example 3 Reference Figures 1 to 7 , which is the third embodiment of the present invention. This embodiment differs from the second embodiment in that innovative improvements are made to the monitoring system and fluid channel of the supporting mechanism 100.

[0047] Furthermore, the supporting mechanism 100 also includes a detection feedback device 150 fixedly installed on the top of the shell 110, a pressure gauge 160 fixedly installed on the outside of the support platform 120, a water inlet pipe 170 fixedly installed on one side of the shell 110, and a water outlet pipe 180 fixedly installed on the other side of the shell 110. The end of the water inlet pipe 170 is fixedly connected to one side of the pipe 141 and communicated with each other, and the end of the water outlet pipe 180 is fixedly connected to the other side of the pipe 141 and communicated with each other.

[0048] Among them, the dual monitoring system composed of the detection feedback device 150 and the pressure gauge 160 can compare the main valve adjustment parameters and the working status of the cleaning flow channel in real time. The symmetrical layout of the water inlet pipe 170 and the water outlet pipe 180 not only optimizes the flow channel design, but its pressure difference data can also indirectly reflect the coordinated working status of the valve core 143 and the scraping component 230. The special connection method of the water inlet pipe 170, the water outlet pipe 180 and the pipeline 141 forms a closed-loop cleaning circuit outside the main flow channel. When the medium flows through the arc groove 144, a Venturi effect will be generated, which will automatically enhance the negative pressure suction in the tube body 210 and promote the migration of pollutants toward the collection box 330.

[0049] It should be noted that the specific model of the detection feedback device 150 is: SICK OD5000 series high-precision photoelectric encoder, which can monitor the displacement of the valve stem 142 in real time and feedback to the control system; the pressure gauge 160 uses the WIKA A-10 all-stainless steel Bourdon tube pressure gauge, which can accurately display the pressure changes in the pipeline 141 and form a closed-loop monitoring with the detection feedback device 150. These high-precision sensor combinations can provide real-time feedback on the main valve adjustment status and clean flow channel working conditions. When the pressure fluctuation exceeds the threshold or the displacement signal is abnormal, the system will automatically adjust the speed of the servo motor 130 or trigger a maintenance alarm, realizing intelligent operation monitoring and fault warning functions.

[0050] During use, when the valve core 143 moves downward to adjust the flow, the pressure drop on the side of the water outlet pipe 180 will simultaneously enhance the suction force of the tube body 210. At this time, the scraping component 230 is just in the maximum scraping position. The synergistic effect of the two effectively improves the cleaning efficiency. The reading fluctuation range of the pressure gauge 160 can intuitively reflect the quality of the system's self-cleaning status.

[0051] In summary, the detection feedback device 150 is directly mounted on the top of the housing 110, forming a closed-loop control circuit with the servo motor 130 to collect the displacement signal of the valve core 143 in real time. The pressure gauge 160 is set in a conspicuous position outside the support platform 120 to facilitate observation of system pressure fluctuations. These two monitoring elements constitute a dual feedback mechanism. When the scraping assembly 230 is working abnormally, the pressure difference change will be immediately displayed on the pressure gauge 160; The water inlet pipe 170 and the water outlet pipe 180 are installed on both sides of the shell 110 in a symmetrical layout. Their direct connection structure with the pipeline 141 eliminates the eddy current loss caused by traditional elbows. When the medium flows through the arc groove 144 of the valve core 143, the sudden change of the flow channel cross-section will produce a Venturi effect.

[0052] It is important to note that the construction and arrangement of the present application, as illustrated in various exemplary embodiments, are illustrative only. Although only a few embodiments are described in detail in this disclosure, those reading this disclosure will readily appreciate that numerous modifications are possible (e.g., variations in the size, dimensions, structure, shape, and proportions of various components, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without materially departing from the novel teachings and advantages of the subject matter described herein. For example, components shown as integrally formed may be constructed from multiple parts or components, the positions of components may be inverted or otherwise altered, and the nature, number, or position of discrete components may be modified or changed. All such modifications are therefore intended to be encompassed within the scope of this invention. The order or sequence of any process or method steps may be altered or resequenced according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover structures described herein that perform the recited function, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of this invention. Therefore, the present invention is not limited to the specific embodiments, but extends to a variety of modifications that still fall within the scope of the appended claims. Furthermore, in order to provide a concise description of the exemplary embodiments, not all features of the actual embodiment may be described (i.e., those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention).

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. Mechanical and hydraulic compound drive flow control device, characterized by: include, A bearing mechanism (100) comprises a housing (110), a support platform (120) fixedly mounted on the top of the housing (110), a servo motor (130) fixedly mounted on the top of the support platform (120), and a flow control assembly (140) arranged at the bottom of the servo motor (130); The cleaning mechanism (200) comprises a tube body (210), a drainage component (220) disposed at the bottom of the tube body (210), and a scraping component (230) disposed in the inner cavity of the drainage component (220); The drainage assembly (220) includes a guide tube (221) and a rectangular groove (222) vertically opened on the inner wall of the guide tube (221); and an adsorption collection mechanism (300) for collecting particles in cooperation with the cleaning mechanism (200).

2. The mechanical-hydraulic compound drive flow control device according to claim 1, characterized in that: The drainage component (220) further includes a spiral groove (223) provided on the inner wall of the rectangular channel (222), and a rounded corner (224) provided in the inner cavity of the rectangular channel (222).

3. The mechanical-hydraulic compound drive flow control device according to claim 2, characterized in that: The flow control assembly (140) comprises a pipe (141) fixedly mounted in the inner cavity of the housing (110), a valve stem (142) fixedly connected to the output end of the servo motor (130), and a valve core (143) fixedly mounted at the bottom of the valve stem (142).

4. The mechanical-hydraulic compound drive flow control device according to claim 3, characterized in that: The flow control assembly (140) further includes an arc-shaped groove (144) provided on the outside of the valve core (143) for controlling the inflow and outflow of flow, and a groove (145) provided on the bottom of the valve core (143).

5. The mechanical-hydraulic compound drive flow control device according to claim 4, characterized in that: The scraping assembly (230) comprises a fixed block (231) fixedly mounted on the bottom of the valve core (143), a connecting block (232) fixedly mounted on the bottom of the fixed block (231), and a crossbar (233) fixedly mounted on the outside of the connecting block (232).

6. The mechanical-hydraulic compound drive flow control device according to claim 5, characterized in that: The scraping assembly (230) further comprises a scraping bar (234) fixedly mounted on the bottom of the cross bar (233), a connecting rod (235) fixedly mounted on the bottom of the scraping bar (234), and a limiting clamping rod (236) fixedly mounted on the bottom of the connecting rod (235), wherein the limiting clamping rod (236) is movably mounted in the inner cavity of the groove (145).

7. The mechanical-hydraulic compound drive flow control device according to claim 6, characterized in that: The adsorption collection mechanism (300) comprises a connecting tube (310) threadedly mounted on the bottom of the guide tube (221), a threaded groove (320) provided on the outside of the connecting tube (310), a collection box (330) fixedly mounted on the top of the connecting tube (310), a magnetic adsorption block (340) fixedly mounted on the top of the collection box (330), and collection grooves (350) provided around the top of the collection box (330).

8. The mechanical-hydraulic compound drive flow control device according to claim 7, characterized in that: The supporting mechanism (100) further comprises a detection feedback device (150) fixedly mounted on the top of the shell (110), a pressure gauge (160) fixedly mounted on the outside of the support platform (120), a water inlet pipe (170) fixedly mounted on one side of the shell (110), and a water outlet pipe (180) fixedly mounted on the other side of the shell (110).

9. The mechanical-hydraulic compound drive flow control device according to claim 8, characterized in that: The end of the water inlet pipe (170) is fixedly connected to one side of the pipeline (141) and communicates with each other, and the end of the water outlet pipe (180) is fixedly connected to the other side of the pipeline (141) and communicates with each other.

10. The mechanical-hydraulic compound drive flow control device according to claim 9, characterized in that: The top of the tube body (210) is fixedly connected to the bottom of the pipeline (141) and communicates with each other. The top of the guide tube (221) is fixedly connected to the bottom of the tube body (210) and communicates with each other.

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