Pluggable proportional valve convenient to quickly install

Abstract

The invention belongs to the technical field of convenient and fast installation of proportional valves, and discloses a plug-in proportional valve convenient and fast to install, the plug-in proportional valve comprises a valve body, the two sides of the valve body are each provided with an electromagnetic valve element assembly, and each electromagnetic valve element assembly comprises an embedded plug-in assembly in butt joint with the valve body; the embedded plugging assembly comprises a plugging valve seat connected with the valve body in a plugging mode, the plugging valve seat is connected with the electromagnetic valve element assembly, an electric controller is fixedly arranged at the top end of the valve body through a screw, external support assemblies are arranged on the front side and the rear side of the valve body correspondingly, and through the structural design of the plugging valve seat and a locking buckle in the embedded plugging assembly, the embedded plugging assembly is fixedly connected with the valve body. When engine oil leaks and the internal electromagnetic valve element assembly needs to be replaced, the outer shell located on the outer side of the displacement sensor is taken down, the locking buckle is rotated to directly pull out the pluggable valve seat from the interior of the valve body, and then the electromagnetic valve element assembly can be rapidly disassembled. Therefore, the electromagnetic valve element assembly is quickly cleaned and replaced.

Description

Technical Field

[0001] The present invention belongs to the technical field of convenient installation of proportional valves, and specifically relates to a plug-in proportional valve that is convenient for quick installation. Background Art

[0002] The proportional valve is a core component in the hydraulic control system. Its function is to control the flow rate and pressure of hydraulic oil through an electrical signal to achieve precise adjustment of the actuator. In the fields of industrial automation, construction machinery, aerospace, etc., the requirements for the response speed, control accuracy, and integration level of the hydraulic system by equipment are increasing day by day. Traditional proportional valves mostly use threaded connections or flange connections. When installing, it is necessary to connect the oil pipes one by one, which is time-consuming and laborious; when maintaining, it is necessary to disassemble the whole, which is easy to cause leakage or pollution of the hydraulic system and affect the operation efficiency of the equipment. For example, in construction machinery, the repair of hydraulic system failures often requires the equipment to stop for several hours, resulting in production losses.

[0003] A new energy fuel proportional valve with the publication number of CN118911893A includes an electromagnetic valve assembly unit, a separation plate, and a proportional valve assembly unit. The electromagnetic valve assembly unit is connected to the proportional valve assembly unit, and the separation plate is used to separate the cavity area formed between the electromagnetic valve assembly unit and the proportional valve assembly unit; the electromagnetic valve housing is wrapped around the electromagnetic valve sleeve, the electromagnetic valve spool is assembled in the inner cavity of the electromagnetic valve sleeve and moves along the axial direction of the electromagnetic valve sleeve, the proportional valve sleeve is installed in the proportional valve body by interference fit to form a fuel inlet ring groove and a fuel outlet ring groove; the proportional valve spool is assembled in the inner cavity of the proportional valve sleeve, and the pressure regulating screw passes through the proportional valve body and its end is connected to the elastic element and is used to adjust the pre-tightening force of the elastic element; A multi-gas integrated proportional valve device with the publication number of CN118935040A includes a valve body, a first gas source joint, a second gas source joint, and a gas outlet installed on the outer surface of the valve body, and also includes a first electromagnetic valve, a second electromagnetic valve, a first one-way valve, a second one-way valve, and a proportional valve installed inside the valve body; the first gas source joint is connected to the first electromagnetic valve through a first intake pipe, and the first electromagnetic valve is connected to the first one-way valve through a first ventilation pipe; the second gas source joint is connected to the second electromagnetic valve through a second intake pipe, and the second electromagnetic valve is connected to the second one-way valve through a second ventilation pipe; the first one-way valve and the second one-way valve are connected to the proportional valve through a third ventilation pipe, and the proportional valve is connected to the gas outlet through a gas transmission pipe; During the use of the above-mentioned new energy fuel proportional valve and a multi-gas integrated proportional valve device, the mechanical structure of the traditional proportional valve is vulnerable to hydraulic oil pollution and temperature changes, resulting in a decrease in control accuracy. Moreover, due to long-term high-frequency use and continuous vibration, seal wear may cause leakage in the case of its leakage, affecting system stability. In a high-precision hydraulic servo system, minor leakage or response delay may lead to excessive product processing errors. At the same time, after the above structure is integrated, the replacement operation of its structure is complex and easily affects the clean use of individual components.

[0004] Therefore, in view of the above problems, a plug-in proportional valve that is convenient for quick installation is proposed. Summary of the Invention

[0005] To solve the problems raised in the above background technology, the present invention provides a plug-in proportional valve that is convenient for quick installation, which solves the deficiencies of traditional proportional valves in installation and maintenance, system integration, and control accuracy. The electrical connection requires welding or screw fixation, which is prone to poor contact, and it is difficult to replace valve components individually after system integration.

[0006] To achieve the above object, the present invention provides the following technical solution: A plug-in proportional valve that is convenient for quick installation, including a valve body, and solenoid valve core assemblies are provided on both sides of the valve body. The solenoid valve core assembly includes an embedded plug-in assembly that docks with the valve body. The embedded plug-in assembly includes a plug-in valve seat that is inserted into the valve body, and the plug-in valve seat is connected to the solenoid valve core assembly. The top of the valve body is fixedly provided with an electric controller by screws, and external support assemblies are provided on the front and rear sides of the valve body.

[0007] Preferably, the solenoid valve core assembly includes a displacement sensor that is spirally arranged with the plug-in valve seat. Both ends of the displacement sensor are provided as threaded tubes. An outer shell is sleeved outside the displacement sensor, and a positioning cap that spirally engages with the threaded tube of the displacement sensor is fitted on the outside of the outer shell.

[0008] Preferably, a first spring is inserted into the displacement sensor. The other end of the first spring abuts against a gasket located inside the valve body. The other side of the gasket is fitted with a pilot piston that is inserted into the valve body. Damping plugs are inserted into both ends of the pilot piston.

[0009] Preferably, an annular groove is opened on the side of the plug-in valve seat facing the inside of the valve body. A sealing gasket that abuts against the valve body is fitted inside the annular groove of the plug-in valve seat. A threaded groove is opened in a circle on the outside of the plug-in valve seat, and the plug-in valve seat is spirally arranged with the valve body through the rotation of the outer limiting ring on the outside.

[0010] Preferably, guide grooves are provided on both sides of the valve body. The guide grooves are concave circular grooves, and placement grooves are provided at multiple points in the circular groove. Among them: an arc groove communicating with the circular groove is provided on one side of the upper placement groove.

[0011] Preferably, a locking buckle is provided inside the concave circular groove of the guide groove. A limiting ring integrally formed with the plug-in valve seat is fixedly provided on the outer side of the locking buckle, and a handle located inside the arc groove is fixedly provided on the outer side of the locking buckle.

[0012] Preferably, the external support assembly includes a steering support rotatably arranged with the valve body; A telescopic frame is provided at the bottom end of the steering support, and a bottom frame is fixedly provided at the other end of the telescopic frame.

[0013] Preferably, a cross is fixedly provided at the top end of the steering support. A clamping ring fixedly arranged with the valve body is fitted on the outer side of the cross, and four uniformly arranged clamping grooves are provided on the inner wall of the clamping ring.

[0014] Preferably, a long screw rod rotatably arranged with the steering support is spirally provided inside the top end of the telescopic frame. A vertical groove is provided inside the steering support. A vertical shaft is fixedly provided inside the vertical groove of the steering support. A slider fitting with the steering support is slidably provided on the outer side of the vertical shaft. A second spring sleeved with the vertical shaft is tightly provided at the top end of the slider, and the other end of the second spring abuts against the steering support. A limiting head fitting with the clamping ring is rotatably provided on one side of the slider, and the limiting head is located inside the clamping groove.

[0015] Preferably, the clamping ring is made of a stainless steel alloy ring, and the bottom frame is made of a forked stainless steel alloy frame, and their opening directions face each other.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Through the design of the plug-in valve seat and the locking buckle structure in the embedded plug-in component of the present invention, when oil leakage occurs and it is necessary to replace the internal solenoid valve core component, as long as the outer shell located outside the displacement sensor is removed and the locking buckle is rotated to directly pull out the plug-in valve seat from the inside of the valve body, the rapid disassembly of the solenoid valve core component can be completed, that is, the rapid cleaning and replacement operations of the solenoid valve core component can be carried out.

[0017] 2. Through the design of the guide groove structure inside both sides of the valve body of the present invention, when installing the plug-in valve seat, the locking buckle outside the limiting ring can be directly locked and positioned inside it, which is convenient to operate. And with the design of the rubber sealing gasket structure, the plug-in valve seat is pressed tightly inside the valve body, reducing the risk of leakage.

[0018] 3. The present invention utilizes the cross that can be rotated at multiple angles in the external support assembly in cooperation with the bottom frame structure below the steering bracket to support the installation of the valve body, providing a stable support point to facilitate the installation operation of the valve body by the staff.

[0019] 4. The present invention, through the telescopic frame that can be telescoped in the external support assembly in cooperation with the long screw structure design, can, when in use, rotate the long screw structure to push and open the telescopic frame to form an expanded structure design. After the installation of the valve body is completed, the bottom frame at its end is pressed against the outer wall of the adjacent structure, thereby limiting the position of the valve body and reducing the vibration situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the installation structure of the electronic controller of the present invention; Figure 3 is an exploded installation structure diagram of the solenoid valve core assembly of the present invention; Figure 4 is an exploded installation structure diagram of the embedded plug-in assembly of the present invention; Figure 5 is a schematic diagram of the installation structure of the guide groove of the present invention; Figure 6 is an enlarged installation structure diagram of the limiting ring of the present invention; Figure 7 is a schematic diagram of the installation structure of the external support assembly of the present invention; Figure 8 is a schematic diagram of the installation structure of the snap ring of the present invention; Figure 9 of the present invention Figure 2 is a schematic diagram of the structure at location A.

[0021] In the figure: 1. Valve body; 2. Solenoid valve core assembly; 21. Displacement sensor; 22. Spring 1; 23. Gasket; 24. Damping plug; 25. Pilot piston; 26. Housing; 27. Positioning cap; 3. Electronic controller; 4. Embedded plug-in assembly; 41. Plug-in valve seat; 42. Limiting ring; 43. Locking buckle; 44. Handle; 45. Sealing washer; 46. Guide groove; 5. External support assembly; 51. Steering bracket; 52. Cross; 53. Telescopic frame; 54. Bottom frame; 55. Long screw; 56. Snap ring; 57. Slide block; 58. Vertical shaft; 59. Spring 2; 510. Card slot; 511. Limiting head.

[0022] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are marked in the figure. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device, and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments. Detailed implementation manners

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0024] It should be noted that in the specification, references to "an embodiment", "embodiments", "exemplary embodiments", "some embodiments", etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment includes such specific features, structures, or characteristics. Additionally, when combining embodiments to describe specific features, structures, or characteristics, implementing such features, structures, or characteristics in combination with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art.

[0025] As Figures 1 to 9 shown, the present invention provides a pluggable proportional valve that is convenient for quick installation, including a valve body 1. Solenoid valve core assemblies 2 are provided on both sides of the valve body 1. The solenoid valve core assembly 2 includes an embedded plugging and unplugging assembly 4 that docks with the valve body 1; The embedded plugging and unplugging assembly 4 includes a plugging and unplugging valve seat 41 that is plugged into the valve body 1, and the plugging and unplugging valve seat 41 is connected to the solenoid valve core assembly 2. The structural design of the plugging and unplugging valve seat 41 can serve as the plugging and unplugging main body structure of the embedded plugging and unplugging assembly 4, so as to facilitate directly pulling out the embedded plugging and unplugging assembly 4. An electronic controller 3 is fixedly provided at the top of the valve body 1 through screws. External support assemblies 5 are provided on the front and rear sides of the valve body 1. The external support assembly 5 forms a support and positioning structure for the valve body 1, improving the installation stability of the valve body 1 and reducing the impact caused by vibration during long-term operation.

[0026] Specifically, the solenoid valve core assembly 2 includes a displacement sensor 21 that is spirally arranged with the plugging and unplugging valve seat 41; Both ends of the displacement sensor 21 are provided as threaded tubes. An outer shell 26 is sleeved outside the displacement sensor 21. A positioning cap 27 that is spirally engaged with the threaded tubes of the displacement sensor 21 is attached to the outside of the outer shell 26. The displacement sensor 21 can be quickly tightened and positioned through the threaded tubes and is fixedly tightened in cooperation with the outer shell 26 and the positioning cap 27.

[0027] Inside the displacement sensor 21, a first spring 22 is inserted. The other end of the first spring 22 abuts against a gasket 23 located inside the valve body 1. On the other side of the gasket 23, a pilot piston 25 inserted into the valve body 1 is attached. Inside both ends of the pilot piston 25, damping plugs 24 are inserted. The displacement sensor 21 operates through the pilot piston 25 inside it. The positioning cap 27 is processed by wire cutting (surface roughness Ra ≤ 0.4μm), and the stress-free installation of the sensor is achieved with a tightening torque of 2.5 N·m. The Wiedemann wave signal output by the sensor is processed by a special chip (model AD22100) of the electronic controller 3 and converted into a digital signal (16-bit resolution). With a built-in Kalman filtering algorithm, the suppression rate of high-frequency noise (100 - 500 Hz) in the hydraulic system reaches 95%, ensuring that the displacement detection error under the condition of vibration acceleration of 5g is ≤ 0.01 mm. The electronic controller 3 outputs a PWM signal (frequency 100 Hz, duty cycle 0 - 100%) to drive the electromagnetic coil, and the pilot piston 25 (material 40Cr, surface hardened to HRC58) moves to open the pilot valve port.

[0028] On the side of the plug-and-play valve seat 41 facing the inside of the valve body 1, an annular groove is provided. Inside the annular groove of the plug-and-play valve seat 41, a sealing washer 45 that abuts against the valve body 1 is attached, so that the sealing washer 45 can be fixed inside the annular groove for positioning, and the sealing washer 45 can be made of rubber. A threaded groove is provided in a circle on the outer side of the plug-and-play valve seat 41, and the plug-and-play valve seat 41 is helically arranged with the valve body 1 through the rotation of the outer limiting ring 42. During the process of the threaded groove of the plug-and-play valve seat 41 cooperating with the rotation of the plug-and-play valve seat 41, they rotate synchronously, strengthening the stability of the connection by the thread.

[0029] On both sides of the valve body 1, guide grooves 46 are provided. The guide grooves 46 are concave circular grooves, and placing grooves are provided at multiple positions in the circular grooves. Among them: on one side of the upper placing groove, an arc groove communicating with the circular groove is provided. The structure of the guide grooves 46 located inside the valve body 1 can conveniently insert the locking buckle 43 into the guide grooves 46 during use, so as to lock the plug-and-play valve seat 41.

[0030] Inside the concave circular groove of the guide groove 46, a locking buckle 43 is provided. On the outer side of the locking buckle 43, a limiting ring 42 integrally formed with the plug-and-play valve seat 41 is fixed. On the outer side of the locking buckle 43, a handle 44 located inside the arc groove is fixed, so as to conveniently rotate the locking buckle 43 located inside the guide groove 46 through the handle 44 and rotate it to the groove position corresponding to the guide groove to take out the plug-and-play valve seat 41.

[0031] The front end of the plug-and-play valve seat 41 is provided with a double-taper guiding surface, which forms a self-aligning structure with the interface of the valve body 1, allowing an insertion deviation of ±1.5°. The trapezoidal boss of the locking buckle 43 and the placement groove of the guide groove 46 form a clearance fit of 0.08 mm to ensure that the axial resistance during insertion is ≤15 N. When the rotating handle 44 is rotated, the locking buckle 43 slides along the arc groove (central angle 105°, curvature radius R = 12.5 mm), driving the limiting ring 42 to rotate synchronously. The thread of the limiting ring 42 generates a tightening torque of 30 N·m with the external thread of the valve body 1, causing the plug-and-play valve seat 41 to move axially by 0.8 mm and the sealing gasket 45 to be initially compressed by 15%.

[0032] The external support assembly 5 includes a steering bracket 51 rotatably arranged with the valve body 1; The bottom end of the steering bracket 51 is provided with a telescopic frame 53, and the other end of the telescopic frame 53 is fixedly provided with a bottom frame 54. The structural design of the telescopic frame 53 can stretch and position the bottom frame 54 to the outer wall of the structure near the valve body 1, tightly press and position it, and reduce the vibration during use.

[0033] The top end of the steering bracket 51 is fixedly provided with a cross 52, and the outside of the cross 52 is fitted with a snap ring 56 fixedly arranged with the valve body 1. Four evenly arranged clamping grooves 510 are opened on the inner wall of the snap ring 56. The structural design of the cross 52 can be used as a positioning structure to provide support on the outside. At the same time, the structural design of the clamping grooves 510 is convenient for providing positioning points.

[0034] The top end inside the telescopic frame 53 is spirally provided with a long screw rod 55 rotatably arranged with the steering bracket 51. A vertical groove is opened inside the steering bracket 51. A vertical shaft 58 is fixedly arranged inside the vertical groove of the steering bracket 51. A slider 57 fitted with the steering bracket 51 slides on the outside of the vertical shaft 58. The top end of the slider 57 is tightly pressed with a second spring 59 sleeved on the vertical shaft 58, and the other end of the second spring 59 is tightly pressed with the steering bracket 51. The slider 57 structure inside the vertical groove of the steering bracket 51 can move up and down. The elastic potential energy of the second spring 59 ensures the reliable engagement of the limiting head 511 and the positioning cap 27, preventing the angle from loosening due to equipment vibration. One side of the slider 57 is rotatably provided with a limiting head 511 fitted with the snap ring 56, and the limiting head 511 is located inside the clamping groove 510. Pushed by the second spring 59, the slider 57 and the limiting head 511 can be tightly pressed inside the clamping groove 510 to complete the positioning. The structure of multiple clamping grooves 510 can provide multiple different positioning points to facilitate changing the orientation of the bottom frame 54. The long screw rod 55 adopts a high-precision trapezoidal thread (Tr16×4 - 7H), the clearance between the nut pair of the long screw rod 55 and the telescopic frame 53 is 0.01 mm, and the lead error is ≤0.02 mm / 100 mm. The mating surface of the vertical shaft 58 (straightness ≤0.01 mm / m) and the slider 57 is ground to ensure that the perpendicularity error during the lifting process is ≤0.1 mm / 100 mm.

[0035] The snap ring 56 is made of stainless steel alloy ring, and the bottom frame 54 is made of a forked stainless steel alloy frame with their opening directions facing each other. The snap ring 56 is designed to cooperate with the structure of the bottom frame 54 and is located on the outside. The use of stainless steel alloy reduces the risk of rust.

[0036] Among them, the valve body 1, the electronic controller 3 and the solenoid valve core assembly 2 are prior arts and will not be elaborated here. At the same time, the present invention also includes a power source, a controller, a switch, etc., which are not the main technical points of this patent and will not be elaborated here.

[0037] The working principle of the technical solution provided by the present invention: During the installation operation of the plug-and-play proportional valve, the damping plug 24 in the solenoid valve core assembly 2 can be inserted into the inside of the pilot piston 25, and the pilot piston 25 is inserted into the inside of the valve body 1, and the gasket 23 is inserted. Gaskets 23 are inserted at both ends of the valve body 1. The spring 22 is placed into the inside of the displacement sensor 21 and then screwed into the inside of the plug-and-play valve seat 41 of the embedded plug-and-play assembly 4 for quick positioning. Then the housing 26 is inserted outside the displacement sensor 21 and tightened and fixed by the positioning cap 27 to complete the assembly. The lock catch 43 on the outside of the limiting ring 42 outside the plug-and-play valve seat 41 is placed into the inside of the guide groove 46. By turning the lock catch 43 through the handle 44 structure, the rotation of the lock catch 43 is controlled. The plug-and-play valve seat 41 is driven by the limiting ring 42 to rotate and is tightened and positioned inside the valve body 1. With the deformation seal of the sealing gasket 45, the risk of leakage is reduced. When the handle 44 of the lock catch 43 rotates to the end of the arc groove, its boss is embedded in the locking groove of the guide groove 46 to form a circumferential stop. At this time, the axial thrust of the limiting ring 42 reaches 120 N, and the compression amount of the sealing gasket 45 reaches 28%, meeting the sealing standard. The sealing gasket 45 adopts a honeycomb-like porous elastic structure, and the material is hydrogenated nitrile rubber. It can still maintain 70% of the elastic modulus at a high temperature of 120 °C. Its cross-section design is a double-lip edge structure, which can automatically compensate for the wear of the mating surface within 0.15 mm, and the service life is increased by 3 times compared with the traditional O-ring. The bottom of the annular groove of the plug-and-play valve seat 41 is provided with pressure relief micropores with a diameter of 0.3 mm (8 are evenly distributed). When the system pressure suddenly rises (such as hydraulic shock), the micropores release the instantaneous high pressure between the sealing surfaces to prevent the sealing gasket 45 from undergoing plastic deformation. This design refers to the anti-compression principle of the honeycomb structure in bionics and reduces the risk of seal failure by 82%.

[0038] The displacement sensor 21 adopts magnetostrictive composite sensing technology (resolution 1μm). The surfaces of the two threaded pipes (M6×0.75) are plated with nano nickel-phosphorus alloy (coating thickness 2μm), and form an interference fit (interference amount 0.01 - 0.02mm) with the threaded holes of the plug valve seat 41. The first spring 22 (effective number of turns 12, free length 35mm) provides a linear reset force. The double-stage throttle holes of the damping plug 24 (primary hole diameter 0.6mm, secondary hole diameter 0.4mm) form a gradient damping, so that the acceleration fluctuation of the piston movement ≤5m / s². The pilot pressure acts on the main valve spool (diameter 10mm) through the damping plug 24, and its opening amount has a piecewise linear relationship with the displacement of the pilot piston: the proportional coefficient is 0.6 when the stroke is 0 - 50%, and the proportional coefficient is 0.8 when the stroke is 50% - 100%, realizing the non-linear precise control of the hydraulic oil flow (0 - 80L / min) and meeting the speed regulation requirements under different working conditions.

[0039] The four arms of the cross 52 and the card slots 510 (depth 6mm, width 9mm) of the snap ring 56 adopt laser cladding wear-resistant layers (hardness HV700), and the fit clearance is controlled within 0.03 - 0.05mm. The hemispherical surface (R = 4.5mm) of the limit head 511 is mirror polished (Ra≤0.2μm), forming a molecular-level adsorption with the inner wall of the card slot, and the angle holding accuracy reaches ±0.3° at a vibration frequency of 20 - 200Hz. The pre-compression amount of the second spring 59 (material 60Si2Mn, diameter 2mm) is 15mm, generating a pre-tightening force of 120N. When the equipment vibrates, the magnetorheological fluid damper (not marked in the figure) in the slider 57 automatically adjusts the damping force, and the damping force increases from 50N to 180N at 100Hz vibration, realizing dynamic adaptive anti-loosening. The fork-shaped structure of the bottom frame 54 is internally equipped with a pressure sensor (accuracy 0.5%FS). When the detected installation surface unevenness >0.5mm, the electronic controller 3 automatically adjusts the rotation angle of the long screw 55, compensates for the installation surface deviation through differential lifting, and realizes intelligent leveling with a leveling accuracy of ±0.2mm. The locking buckle 43 of the embedded plug-in component 4 is internally equipped with a strain gauge (sensitivity coefficient 2.08), which real-time monitors the connection pre-tightening force. When the pre-tightening force decays by 15%, the electronic controller 3 sends a warning to the cloud through the OPCUA protocol, prompting the maintenance personnel to deal with it in time, reducing the risk of accidental shutdown by 90%.

[0040] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plug-in proportional valve for facilitating quick installation, comprising a valve body (1), characterized in that: On both sides of the valve body (1), there are solenoid valve core assemblies (2), and the solenoid valve core assembly (2) includes an embedded plug-in component (4) docked with the valve body (1); The embedded plug-in component (4) includes a plug-in valve seat (41) inserted into the valve body (1), and the plug-in valve seat (41) is connected to the solenoid valve core assembly (2). An electronic controller (3) is fixedly provided at the top of the valve body (1) by screws, and external support assemblies (5) are provided on both the front and rear sides of the valve body (1).

2. The plug-in proportional valve that is convenient for quick installation according to claim 1, wherein: The solenoid valve core assembly (2) includes a displacement sensor (21) spirally arranged with the plug-in valve seat (41); Both ends of the displacement sensor (21) are provided as threaded pipes. An outer shell (26) is sleeved outside the displacement sensor (21), and a positioning cap (27) spirally engaged with the threaded pipes of the displacement sensor (21) is fitted on the outside of the outer shell (26).

3. The pluggable proportional valve facilitating quick installation according to claim 2, characterized in that: A first spring (22) is inserted inside the displacement sensor (21), and the other end of the first spring (22) abuts against a gasket (23) located inside the valve body (1). On the other side of the gasket (23), a pilot piston (25) inserted into the valve body (one) is fitted. Damping plugs (24) are inserted into both ends of the pilot piston (25).

4. The plug-in proportional valve that is convenient for quick installation according to claim 1, wherein: On one side of the plug-in valve seat (41) facing the inside of the valve body (1), a circular groove is provided. A sealing washer (45) that abuts against the valve body (1) is fitted inside the circular groove of the plug-in valve seat (41). A threaded groove is provided in a circle on the outside of the plug-in valve seat (41), and the plug-in valve seat (41) is spirally arranged with the valve body (1) by the rotation of an outer limiting ring (42).

5. The plug-in proportional valve facilitating quick installation according to claim 1, wherein: Guide grooves (46) are provided on both sides of the valve body (1). The guide grooves (46) are provided as concave circular grooves, and placing grooves are provided at multiple positions in the circular groove. Specifically: on one side of the upper placing groove, an arc groove communicating with the circular groove is provided.

6. The plug-in proportional valve that is convenient for quick installation according to claim 5, characterized in that: A locking clamp (43) is provided inside the concave circular groove of the guide groove (46). An outer limiting ring (42) integrally formed with the plug-in valve seat (41) is fixedly provided on the outside of the locking clamp (43), and a handle (44) located inside the arc groove is fixedly provided on the outside of the locking clamp (43).

7. The plug-in proportional valve that is convenient for quick installation according to claim 1, wherein: The external support assembly (5) includes a steering support (51) rotatably arranged with the valve body (1); At the bottom end of the steering support (51), a telescopic frame (53) is provided, and the other end of the telescopic frame (53) is fixedly provided with a bottom frame (54).

8. The plug-in proportional valve facilitating quick installation according to claim 7, characterized in that: A cross (52) is fixedly provided at the top end of the steering support (51). A clamping ring (56) fixedly arranged with the valve body (1) is fitted on the outside of the cross (52), and four evenly arranged clamping grooves (510) are provided on the inner wall of the clamping ring (56).

9. The pluggable proportional valve facilitating quick installation according to claim 8, characterized in that: Inside the top end of the telescopic frame (53), a long screw rod (55) rotatably arranged with the steering bracket (51) is spirally provided. Inside the steering bracket (51), a vertical groove is formed. Inside the vertical groove of the steering bracket (51), a vertical shaft (58) is fixedly provided. A slider (57) that fits with the steering bracket (51) is slidably arranged on the outer side of the vertical shaft (58). At the top end of the slider (57), a second spring (59) sleeved on the vertical shaft (58) is tightly abutted. The other end of the second spring (59) is tightly abutted with the steering bracket (51). On one side of the slider (57), a limiting head (511) that fits with the snap ring (56) is rotatably arranged, and the limiting head (511) is located inside the clamping groove (510).

10. The plug-in proportional valve facilitating quick installation according to claim 8, characterized in that: The snap ring (56) is made of a stainless steel alloy ring, and the bottom frame (54) is made of a forked stainless steel alloy frame, and their opening directions face each other.

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