A multifunctional control valve body for engineering machinery

Abstract

The present invention relates to the technical field of engineering machinery, and specifically to a multifunctional control valve body for engineering machinery, including a control valve body and a connecting pipe seat, wherein a valve core valve body is arranged inside the control valve body, one side of the control valve body is fixedly connected to a first side frame, and the other side of the control valve body is fixedly connected to a second side frame. The present invention can realize the rapid hand-operated integrated synchronous adjustment operation of the control valve body as a whole by setting the control valve body, valve core valve body, fixing groove, first limit groove, first connecting seat, second connecting seat, first stabilizing frame and second stabilizing frame. In actual use, the staff first starts the driving motor inside the motor frame, so that the driving motor drives the second connecting seat to drive and rotate through the first rotating rod, so that the second connecting seat drives the valve core valve body inside the control valve body to perform stable adjustment operation.

Description

Technical Field

[0001] The invention relates to the technical field of engineering machinery, in particular to a multifunctional control valve body for engineering machinery. Background Art

[0002] Engineering machinery is an important part of the equipment industry. Generally speaking, all mechanical equipment required for comprehensive mechanized construction projects required for earthwork construction, road construction and maintenance, mobile lifting and loading and unloading operations, and various construction projects is called engineering machinery. It is mainly used in national defense construction projects, transportation construction, energy industry construction and production, mining and other raw material industry construction and production, agriculture, forestry and water conservancy construction, industrial and civil construction, urban construction, environmental protection and other fields. The electro-hydraulic valve is used to control the pressure oil in the oil circuit to push the valve core. The electro-hydraulic reversing valve and the hydraulically controlled reversing valve are mainly used in hydraulic systems where the flow rate exceeds the normal operating allowable range of the electromagnetic reversing valve to control the action of the actuator or the flow direction of the oil. The electro-hydraulic reversing valve and the hydraulically controlled reversing valve are mainly used in hydraulic systems where the flow rate exceeds the normal operating allowable range of the electromagnetic reversing valve to control the action of the actuator or the flow direction of the oil.

[0003] For example, the patent document with the announcement number CN 18488125 A discloses a multifunctional integrated hand-operated rotary control valve. A multifunctional integrated hand-operated rotary control valve comprises a control valve body, the two sides of which are respectively connected to the right end cover of the valve body and the left end cover of the valve body, the control valve body is symmetrically provided with a main clutch control valve core and a secondary clutch control valve core, and the end of the main clutch control valve core away from the secondary clutch control valve core passes through the left end cover of the valve body, and the end of the secondary clutch control valve core away from the main clutch control valve core passes through the right end cover of the valve body. The invention has a simple structure, a simple and compact structure, high reliability, high operating frequency, resistance to oil pollution, no acceleration zero drift and other advantages to solve the control problem, can realize automatic precise control, and can realize timely switching of manual control, can effectively achieve the purpose that general mechanisms cannot achieve, the comprehensive utilization of machinery, electricity and liquid can effectively realize mutual switching without interfering with each other, provide a control path for intelligent machinery, and can be combined with other oil circuit systems for universal use.

[0004] However, during actual use, this structure cannot realize the demand for manual and electric synchronous control of the valve body as a whole, and can only be operated with a simple manual and electric coordination, which easily leads to various problems of lack of coordination between the manual structure and the electric structure of the equipment. In daily use, the overall use requirements of the equipment are relatively large and difficult, and cannot meet the needs of better and more efficient valve body control. At the same time, since the equipment as a whole cannot synchronously complete the manual and electric coordination operation of the valve body, the equipment will not be able to perform more stable multi-angle control of the valve core, which is not conducive to daily use. Therefore, it is urgent to design a multi-functional control valve body for engineering machinery to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a multifunctional control valve body for engineering machinery to solve the problem that the existing structure proposed in the above background technology cannot achieve the demand for manual and electric synchronous control of the valve body as a whole during actual use, and can only be operated by simple manual and electric coordination, which easily leads to various problems of lack of coordination between the manual structure and the electric structure of the equipment. During daily use, the overall use requirements of the equipment are relatively large and difficult, and it is unable to meet the needs of better and efficient valve body control. At the same time, since the equipment as a whole cannot synchronously complete the manual and electric coordination operation of the valve body, the equipment will not be able to perform more stable multi-angle control of the valve core, which is not conducive to daily use.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multifunctional control valve body for engineering machinery, comprising a control valve body, both ends of the control valve body are fixedly connected with a connecting pipe seat, a valve core body is arranged inside the control valve body, one side of the control valve body is fixedly connected with a first side frame, the other side of the control valve body is fixedly connected with a second side frame, both sides of the valve core body are provided with a clamping groove, both sides of the clamping groove are provided with a first limiting groove, one end of the valve core body is provided with a first connecting seat, the other end of the valve core body is provided with a second connecting seat, one end of the control valve body is fixedly connected with a first stabilizing frame, the other end of the control valve body is fixedly connected with a second stabilizing frame, and both sides of the second stabilizing frame are fixedly connected with a transmission frame;

[0007] The gear train is constituted of a gear and a transmission gear of the first and second gears, and a gear train is constituted of a gear and a transmission gear of the first and second gears, and a gear train is constituted of a gear and a transmission gear of the first and second gears.

[0008] Preferably, the gear seat and the wedge-shaped seat are internally movably connected with a second rotating rod, one end of the second rotating rod is fixedly connected with a twist button, and the surface of the second rotating rod is sleeved with a fastening ring.

[0009] Preferably, a sun gear is provided on the surface of the second rotating rod, a movable gear shaft sleeve is provided at the other end of the gear seat, and planetary gears are evenly and movably connected to the four corners of the inner wall of the movable gear shaft sleeve.

[0010] Preferably, one end of the transmission screw is fixedly connected to a limit rod, and one end of the limit rod is fixedly connected to an adjustment bolt.

[0011] Preferably, the bottom of the screw sleeve is fixedly connected to a limiting block, and the bottoms of the first side frame and the second side frame are both provided with second limiting grooves.

[0012] Preferably, the other end of the transmission screw is fixedly connected to an adjusting rod, one end of the adjusting rod is provided with a bearing seat, and one end of the adjusting rod is movably connected to a top fixing seat through the bearing seat.

[0013] Preferably, sealing grooves are provided on both sides of the control valve body, sealing strips are provided on both sides of the inner wall of the sealing groove, and the four corners of the inner wall of the control valve body are fixedly connected to limit strips.

[0014] Preferably, the inner top wall and the inner bottom wall of the first stabilizing frame and the second stabilizing frame are both fixedly connected with a stabilizing seat, the inner wall of the stabilizing seat is provided with a fixing spring, and one end of the fixing spring is fixedly connected with an arc-shaped top seat.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The multifunctional control valve body for engineering machinery can realize the rapid hand-operated integrated synchronous adjustment operation of the control valve body as a whole through the control valve body, valve core valve body, fixing groove, first limit groove, first connecting seat, second connecting seat, first stabilizing frame, second stabilizing frame, motor frame, mounting frame, driving motor, first rotating rod, gear seat, wedge seat, second rotating rod, fastening collar, sun gear, movable gear shaft sleeve and planetary gear. In actual use, the staff first starts the driving motor inside the motor frame, so that the driving motor drives the second connecting seat to drive and rotate through the first rotating rod, so that the second connecting seat drives the valve core valve body inside the control valve body to perform stable adjustment operation. First, the valve core valve body is adjusted to the approximate range of the specified position inside the control valve body, and then the staff turns the twist knob at one end of the second rotating rod to drive the control valve body inside through the first connecting seat. The valve core and valve body can be operated more accurately. When the second rotating rod is rotating, the sun gear on the surface can rotate stably inside the movable gear sleeve. At this time, the sun gear and the planetary gear inside the movable gear sleeve are stably meshed. At the same time, the planetary gear meshes with the movable gear sleeve. Through the sun gear, the movable gear sleeve and the planetary gear, the second rotating rod can be rotated and adjusted more accurately, ensuring that the second rotating rod can be adjusted to the specified flux position more accurately. At this time, the staff will stably tighten the fastening ring on the wedge seat, and clamp the second rotating rod as a whole through the wedge seat, thereby completing the fastening operation of the valve core and valve body inside the control valve body, and quickly realizing the integrated use of hand and electricity for the control valve body as a whole. At the same time, they can also perform separate control operations, which meets the vast majority of usage directions and completes the electro-hydraulic control operations in a multifunctional manner, reflecting the practicality of the equipment design.

[0017] 2. The multifunctional control valve body for engineering machinery further improves the overall control effect of the equipment by arranging the first side frame, the second side frame, the first stabilizing frame, the second stabilizing frame, the first rotating rod, the driving bevel gear, the first transmission bevel gear, the transmission rod, the second transmission bevel gear, the rotating bevel gear, the screw sleeve, the transmission screw, the adjusting rod, the bearing seat, the top fixing seat, the limiting strip and the stabilizing seat. In the daily use process, when the staff adjusts through the driving motor or the twisting knob, the driving bevel gear on the surface of the first rotating rod can drive the first transmission bevel gear and the transmission rod to rotate synchronously, and the second transmission bevel gear at one end of the transmission rod drives the rotating bevel gear as a whole to drive the operation, so that the screw sleeve inside the rotating bevel gear drives the transmission screw to perform a stable reciprocating adjustment operation, so that the adjusting rod drives the bearing seat and the top fixing seat at one end to perform a stable reciprocating adjustment operation. The spool and valve body of the control valve body are adapted to be fixed to the spool and valve body by the fixing spring inside the spool and valve body, so that the spool and valve body as a whole can be more stably adjusted and adapted inside the control valve body, and the limiting strip and the first limiting slot can be more stably connected to the spool and valve body, and the sealing strip inside the sealing slot can be adaptively fitted and sealed through the fixing seat, so as to complete the daily fixing operation of the spool and valve body of the control valve body more tightly, and the first rotating rod and the second rotating rod can be stably limited and fixed inside the first stabilizing frame and the second stabilizing frame respectively, and the arc-shaped fixing seat can be stably adjusted through the fixing spring inside the stabilizing seat, and the rotating first rotating rod and the second rotating rod can be adaptively limited through the arc-shaped fixing seat, so as to achieve more stable overall control of the control valve body, which reflects the comprehensiveness of the equipment as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the structure of the present invention;

[0019] Figure 2 It is an overall schematic diagram of the driving motor structure of the present invention;

[0020] Figure 3 It is an overall schematic diagram of the transmission screw structure of the present invention;

[0021] Figure 4 It is an overall schematic diagram of the control valve body structure of the present invention;

[0022] Figure 5 It is an overall schematic diagram of the valve core and valve body structure of the present invention;

[0023] Figure 6 It is an overall schematic diagram of the gear seat structure of the present invention;

[0024] Figure 7 It is a schematic diagram of the structure of the first stabilizing frame and the second stabilizing frame 11 of the present invention;

[0025] Figure 8For the present invention Figure 1 A magnified schematic diagram of the structure in the middle.

[0026] In the figure: 1, control valve body; 2, take-over seat; 3, valve core valve body; 4, first side frame; 5, second side frame; 6, clamping groove; 7, first limit groove; 8, first connecting seat; 9, second connecting seat; 10, first stabilizing frame; 11, second stabilizing frame; 12, transmission frame; 13, motor frame; 14, mounting frame; 15, driving motor; 16, first rotating rod; 17, driving bevel gear; 18, first transmission bevel gear; 19, transmission rod; 20, second transmission bevel gear; 21, rotating bevel gear; 22, screw rod 1. sleeve; 23. transmission screw; 24. mounting groove; 25. gear seat; 26. wedge-shaped seat; 27. second rotating rod; 28. twist button; 29. ​​fastening collar; 30. sun gear; 31. movable gear shaft sleeve; 32. planetary gear; 33. limit rod; 34. adjustment bolt; 35. limit block; 36. second limit groove; 37. adjustment rod; 38. bearing seat; 39. top fixing seat; 40. sealing groove; 41. sealing strip; 42. limit strip; 43. stabilizing seat; 44. top fixing spring; 45. arc top seat. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-8 , an embodiment provided by the present invention:

[0029] A multifunctional control valve body for engineering machinery, which is used in the present application as a control valve body 1, a valve core valve body 3, a drive motor 15, a drive bevel gear 17, a first transmission bevel gear 18, a second transmission bevel gear 20, a rotating bevel gear 21, a transmission screw 23, a sun gear 30, a movable gear shaft sleeve 31, a planetary gear 32, a bearing seat 38, a sealing strip 41 and a top fixing spring 44. These are products that can be directly purchased on the market, and their principles and connection methods are all existing technologies well known to those skilled in the art, including a control valve body 1, and the two ends of the control valve body 1 are fixedly connected. There is a connecting pipe seat 2, a valve core valve body 3 is arranged inside the control valve body 1, a first side frame 4 is fixedly connected to one side of the control valve body 1, and a second side frame 5 is fixedly connected to the other side of the control valve body 1, a clamping groove 6 is provided on both sides of the valve core valve body 3, and a first limiting groove 7 is provided on both sides of the clamping groove 6, a first connecting seat 8 is arranged at one end of the valve core valve body 3, and a second connecting seat 9 is arranged at the other end of the valve core valve body 3, one end of the control valve body 1 is fixedly connected to a first stabilizing frame 10, and the other end of the control valve body 1 is fixedly connected to a second stabilizing frame 11, and the second stabilizing frame 11 is fixedly connected to the first stabilizing frame 11. The two sides are fixedly connected with a transmission frame 12, the two sides of the control valve body 1 are provided with a sealing groove 40, the two sides of the inner wall of the sealing groove 40 are provided with a sealing strip 41, the four corners of the inner wall of the control valve body 1 are fixedly connected with a limit strip 42, the top wall and the bottom wall of the first stable frame 10 and the second stable frame 11 are fixedly connected with a stable seat 43, the inner wall of the stable seat 43 is provided with a top fixing spring 44, one end of the top fixing spring 44 is fixedly connected with an arc top seat 45, when the adjustment is made by the driving motor 15 or the twisting button 28, the driving bevel gear 17 on the surface of the first rotating rod 16 can drive The first transmission bevel gear 18 and the transmission rod 19 rotate synchronously, and the second transmission bevel gear 20 at one end of the transmission rod 19 drives the rotating bevel gear 21 as a whole to drive the operation, so that the screw sleeve 22 inside the rotating bevel gear 21 drives the transmission screw 23 to perform a stable reciprocating adjustment operation, so that the adjustment rod 37 drives the bearing seat 38 and the top fixing seat 39 at one end to perform a stable movement operation, thereby realizing an adaptive top fixing operation with the internal fixing groove 6 of the valve core valve body 3, so that the valve core valve body 3 as a whole can be more stably adapted and adjusted inside the control valve body 1.

[0030] The motor frame 13 and the mounting frame 14, one end of the motor frame 13 is fixedly connected to the end of the second stable frame 11 away from the control valve body 1, one end of the mounting frame 14 is fixedly connected to the end of the first stable frame 10 away from the control valve body 1, a driving motor 15 is arranged on the surface of the motor frame 13, one end of the driving motor 15 is fixedly connected to the first rotating rod 16, the surface of the first rotating rod 16 is sleeved with a driving bevel gear 17, both sides of the driving bevel gear 17 are meshed and connected with the first transmission bevel gear 18, one end of the first transmission bevel gear 18 is fixedly connected to the transmission rod 19, one end of the transmission rod 19 is provided A second transmission bevel gear 20 is arranged, one end of the transmission rod 19 is movably connected to a rotating bevel gear 21 through the second transmission bevel gear 20, a screw sleeve 22 is sleeved inside the rotating bevel gear 21, a transmission screw 23 is arranged inside the screw sleeve 22, a mounting groove 24 is opened inside the mounting frame 14, a gear seat 25 is fixedly connected inside the mounting groove 24, one end of the gear seat 25 is fixedly connected to a wedge seat 26, a second rotating rod 27 is movably connected inside the gear seat 25 and the wedge seat 26, one end of the second rotating rod 27 is fixedly connected to a twist button 28, and a fastening screw 23 is sleeved on the surface of the second rotating rod 27 The ring 29, the surface of the second rotating rod 27 is provided with a sun gear 30, the other end of the gear seat 25 is provided with a movable gear shaft sleeve 31, the four corners of the inner wall of the movable gear shaft sleeve 31 are evenly and movably connected with planetary gears 32, one end of the transmission screw 23 is fixedly connected to a limit rod 33, one end of the limit rod 33 is fixedly connected to an adjusting bolt 34, the bottom of the screw sleeve 22 is fixedly connected to a limit block 35, the bottom of the first side frame 4 and the second side frame 5 are both provided with a second limit groove 36, the other end of the transmission screw 23 is fixedly connected to an adjusting rod 37, one end of the adjusting rod 37 is provided with a bearing seat 38, and the adjusting rod 3 One end of 7 is movably connected to a top fixing seat 39 through a bearing seat 38. When the second rotating rod 27 is rotating, the sun gear 30 on the surface can be stably rotated inside the movable gear shaft sleeve 31 as a whole. At this time, the sun gear 30 is stably meshed with the planetary gear 32 inside the movable gear shaft sleeve 31, and the planetary gear 32 is meshed with the movable gear shaft sleeve 31. Through the sun gear 30, the movable gear shaft sleeve 31 and the planetary gear 32, the second rotating rod 27 can be rotated and adjusted more accurately, ensuring that the second rotating rod 27 can be adjusted to the specified flux position more accurately.

[0031] Working principle: When in use, the user first starts the driving motor 15 inside the motor frame 13, so that the driving motor 15 drives the second connecting seat 9 to drive and rotate through the first rotating rod 16, so that the second connecting seat 9 drives the valve core valve body 3 inside the control valve body 1 to perform stable adjustment operations. First, the valve core valve body 3 is adjusted to the approximate range of the specified position inside the control valve body 1, and then the staff turns the twist button 28 at one end of the second rotating rod 27, thereby driving the valve core valve body 3 inside the control valve body 1 through the first connecting seat 8 to perform more precise adjustment operations. During the rotation of the second rotating rod 27, the sun gear 30 on the surface can rotate stably as a whole inside the movable gear shaft sleeve 31. The sun gear 30 is in meshing engagement with the planetary gear 32 inside the movable gear shaft sleeve 31, and the planetary gear 32 is meshing engagement with the movable gear shaft sleeve 31. The sun gear 30, the movable gear shaft sleeve 31 and the planetary gear 32 enable the second rotating rod 27 to be more accurately rotated and adjusted, thereby ensuring that the second rotating rod 27 can be more accurately adjusted to the specified flux position. At this time, the staff stably screws the fastening collar 29 onto the wedge-shaped seat 26, and fixes the second rotating rod 27 as a whole through the wedge-shaped seat 26, thereby completing the fastening operation of the valve core and valve body 3 inside the control valve body 1, and quickly realizing the hand-electric integrated use operation of the control valve body 1 as a whole, and at the same time, they can also be operated separately. The control operation meets most of the usage directions and completes the control operation of the electro-hydraulic in a multifunctional manner. In the daily use process, when the staff adjusts through the drive motor 15 or the twist button 28, the driving bevel gear 17 on the surface of the first rotating rod 16 can drive the first transmission bevel gear 18 and the transmission rod 19 to rotate synchronously, and the second transmission bevel gear 20 at one end of the transmission rod 19 drives the rotating bevel gear 21 as a whole to drive the operation, so that the screw sleeve 22 inside the rotating bevel gear 21 drives the transmission screw rod 23 to perform a stable reciprocating adjustment operation, so that the adjusting rod 37 drives the bearing seat 38 and the top fixing seat 39 at one end to perform a stable moving operation, so as to realize the adaptive top fixing operation with the internal fixing groove 6 of the valve core and valve body 3, so that The valve core and valve body 3 as a whole can be more stably adapted and regulated inside the control valve body 1, and the limit strip 42 and the first limit groove 7 can be more stably docked, and the top fixing seat 39 can be adaptively fitted and sealed with the sealing strip 41 inside the sealing groove 40, so as to complete the daily top fixing operation of the valve core and valve body 3 of the control valve body 1 more tightly, and the first rotating rod 16 and the second rotating rod 27 can be stably limited and fixed inside the first stable frame 10 and the second stable frame 11 respectively, and the arc top seat 45 can be stably adjusted by the top fixing spring 44 inside the stable seat 43, and then the first rotating rod 16 and the second rotating rod 27 can be adaptively limited by the arc top seat 45.Thus, a more stable overall control operation of the control valve body 1 is achieved. The above is the entire working principle of the present invention.

[0032] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A multifunctional control valve body for engineering machinery, comprising a control valve body (1), characterized in that: The two ends of the control valve body (1) are fixedly connected to the connecting pipe seats (2), the control valve body (1) is provided with a valve core body (3), one side of the control valve body (1) is fixedly connected to the first side frame (4), the other side of the control valve body (1) is fixedly connected to the second side frame (5), the two sides of the valve core body (3) are provided with clamping grooves (6), the two sides of the clamping grooves (6) are provided with first limiting grooves (7), one end of the valve core body (3) is provided with a first connecting seat (8), and the other end of the valve core body (3) is provided with a A second connecting seat (9) is provided, one end of the control valve body (1) is fixedly connected to a first stabilizing frame (10), the other end of the control valve body (1) is fixedly connected to a second stabilizing frame (11), the inner top wall and the inner bottom wall of the first stabilizing frame (10) and the second stabilizing frame (11) are both fixedly connected to a stabilizing seat (43), the inner wall of the stabilizing seat (43) is provided with a top fixing spring (44), one end of the top fixing spring (44) is fixedly connected to an arc-shaped top seat (45), and both sides of the second stabilizing frame (11) are fixedly connected to a transmission frame (12); A motor frame (13) and a mounting frame (14), one end of the motor frame (13) is fixedly connected to one end of the second stabilizing frame (11) away from the control valve body (1), one end of the mounting frame (14) is fixedly connected to one end of the first stabilizing frame (10) away from the control valve body (1), a driving motor (15) is arranged on the surface of the motor frame (13), one end of the driving motor (15) is fixedly connected to a first rotating rod (16), a driving bevel gear (17) is sleeved on the surface of the first rotating rod (16), both sides of the driving bevel gear (17) are meshedly connected to first transmission bevel gears (18), one end of the first transmission bevel gear (18) is fixedly connected to a transmission rod (19), A second transmission bevel gear (20) is arranged at one end of the transmission rod (19), and one end of the transmission rod (19) is movably connected to a rotating bevel gear (21) through the second transmission bevel gear (20), a screw sleeve (22) is sleeved inside the rotating bevel gear (21), a transmission screw (23) is arranged inside the screw sleeve (22), one end of the transmission screw (23) is fixedly connected to a limit rod (33), one end of the limit rod (33) is fixedly connected to an adjusting bolt (34), a mounting groove (24) is provided inside the mounting frame (14), a gear seat (25) is fixedly connected inside the mounting groove (24), and one end of the gear seat (25) is fixedly connected to a wedge seat (26); A second rotating rod (27) is movably connected inside the gear seat (25) and the wedge seat (26); one end of the second rotating rod (27) is fixedly connected to a twisting button (28); and a fastening ring (29) is sleeved on the surface of the second rotating rod (27); A sun gear (30) is disposed on the surface of the second rotating rod (27), a movable gear shaft sleeve (31) is disposed at the other end of the gear seat (25), and planetary gears (32) are evenly and movably connected at four corners of the inner wall of the movable gear shaft sleeve (31); The other end of the transmission screw rod (23) is fixedly connected to an adjusting rod (37), one end of the adjusting rod (37) is provided with a bearing seat (38), and one end of the adjusting rod (37) is movably connected to a top fixing seat (39) through the bearing seat (38); The control valve body (1) is provided with sealing grooves (40) on both sides, the inner walls of the sealing grooves (40) are provided with sealing strips (41) on both sides, and the four corners of the inner wall of the control valve body (1) are fixedly connected with limit strips (42); The driving motor (15) inside the motor frame (13) is started, so that the driving motor (15) drives the second connecting seat (9) to drive the rotation operation through the first rotating rod (16), so that the second connecting seat (9) drives the valve core valve body (3) inside the control valve body (1) to perform a stable adjustment operation. The valve core valve body (3) is first adjusted to an approximate range of a specified position inside the control valve body (1), and then the twisting button (28) at one end of the second rotating rod (27) is twisted, so as to drive the valve core valve body (3) inside the control valve body (1) through the first connecting seat (8) to perform a more precise adjustment operation. During the rotation of the second rotating rod (27), the sun gear (3) on the surface 0) as a whole can be stably rotated inside the movable gear shaft sleeve (31), at this time, the sun gear (30) and the planetary gear (32) inside the movable gear shaft sleeve (31) are stably meshed, and at the same time, the planetary gear (32) meshes with the movable gear shaft sleeve (31), and the second rotating rod (27) can be more accurately rotated and adjusted through the sun gear (30), the movable gear shaft sleeve (31) and the planetary gear (32), so that the second rotating rod (27) can be more accurately adjusted to the specified flux position. At this time, the fastening ring (29) is stably screwed on the wedge seat (26), and the second rotating rod (27) is clamped as a whole through the wedge seat (26), thereby completing the valve core valve. The body (3) is fastened to the control valve body (1), and the hand-electric integrated operation of the control valve body (1) is quickly realized. At the same time, the individual control operations can also be performed to meet the needs of most usage directions and to complete the control operation of the electro-hydraulic in a multifunctional manner. In daily use, when adjusting by the drive motor (15) or the twisting knob (28), the driving bevel gear (17) on the surface of the first rotating rod (16) can drive the first transmission bevel gear (18) and the transmission rod (19) to rotate synchronously, and the second transmission bevel gear (20) at one end of the transmission rod (19) drives the rotating bevel gear (21) as a whole to drive the operation, so that the internal thread of the rotating bevel gear (21) is The rod sleeve (22) drives the transmission screw rod (23) to perform a stable reciprocating adjustment operation, so that the adjustment rod (37) drives the bearing seat (38) and the top fixing seat (39) at one end to perform a stable moving operation, thereby realizing an adaptive top fixing operation with the internal fixing groove (6) of the valve core valve body (3), so that the valve core valve body (3) as a whole can be more stably adapted to perform an adaptive adjustment operation inside the control valve body (1), and cooperate with the limit strip (42) and the first limit groove (7) to more stably complete the docking operation, and the top fixing seat (39) can realize adaptive fitting and sealing with the sealing strip (41) inside the sealing groove (40), so as to complete the daily top fixing operation of the valve core valve body (3) of the control valve body (1) in a more sealed manner.Furthermore, the first rotating rod (16) and the second rotating rod (27) can be stably limited and fixed inside the first stabilizing frame (10) and the second stabilizing frame (11), respectively, and the arc-shaped top seat (45) can be stably adjusted by the top fixing spring (44) inside the stabilizing seat (43), and then the arc-shaped top seat (45) can be adaptively limited to the rotating first rotating rod (16) and the second rotating rod (27), thereby achieving a more stable overall control operation of the control valve body (1).

2. The multifunctional control valve body for engineering machinery according to claim 1, characterized in that: The bottom of the screw rod sleeve (22) is fixedly connected to a limiting block (35), and the bottoms of the first side frame (4) and the second side frame (5) are both provided with a second limiting groove (36).

Images