Electric control seedling table lifting hydraulic valve mechanism
By introducing an electrical control system and a micro switch detection mechanism into the hydraulic valve mechanism, combined with a pneumatic actuation unit and transmission device, automatic monitoring and correction of hydraulic valve gear deviation is realized, the problem of unstable hydraulic valve lift control is solved, and the reliability and stability of the system are improved.
Patent Information
- Application Number
- CN202510647024.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2025-06-20
AI Technical Summary
When switching the lift and lower gear, existing hydraulic valves are prone to stagnation due to deviation of the adjustment stop plate or misalignment at the adjustment tooth plate, resulting in unstable lift control and the abnormal state cannot be automatically identified. It requires manual inspection, the reset steps are cumbersome, the downtime is long, and the working efficiency is low.
An electronically controlled melon lifting hydraulic valve mechanism is designed. Through the precise coordination of the movable wheel and the slot and the micro switch detection mechanism, the automatic monitoring and feedback of the hydraulic valve gear deviation is realized, and the deviation correction is achieved by using a pneumatic actuator unit to cooperate with the transmission.
It significantly improves the reliability and positioning accuracy of gear switching, greatly improves the stability of system operation, reduces the need for manual inspection and reset, and shortens downtime.
Smart Images
Figure CN120175708A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of hydraulic valve mechanisms, and particularly relates to an electronically controlled hydraulic valve mechanism for lifting a seedling table. Background Art
[0002] A hydraulic valve is an automated component operated by pressure oil. It is controlled by the pressure oil of a distribution valve and is usually used in combination with an electromagnetic distribution valve. It can be used to remotely control the on / off of oil, gas, and water pipeline systems in hydropower stations. It is commonly used in oil circuits such as clamping, control, and lubrication; it is divided into direct-acting type and pilot type, and the pilot type is mostly used.
[0003] In the prior art, when the hydraulic valve switches the lifting gear position, it is prone to jamming due to the deviation of the adjusting stop plate orientation or the misalignment at the adjusting toothed plate, resulting in unstable lifting control. Moreover, it cannot automatically identify abnormal states and relies on manual inspection. The disassembly steps are relatively cumbersome during reset, so that the downtime is relatively long and the working efficiency is low. Summary of the Invention
[0004] The present invention discloses an electronically controlled hydraulic valve mechanism for lifting a seedling table, aiming to solve the technical problem that when the hydraulic valve switches the lifting gear position in the background art, it is prone to jamming due to the deviation of the adjusting stop plate orientation or the misalignment at the adjusting toothed plate, resulting in unstable lifting control.
[0005] An electronically controlled hydraulic valve mechanism for lifting a seedling table proposed by the present invention includes a hydraulic control bottom plate; A fixing frame, which is fixedly connected to one side of the hydraulic control bottom plate; A hydraulic lifting control valve, which is fixedly connected to one side of the fixing frame; A rotating block, which is movably connected to one side of the hydraulic lifting control valve; A connecting plate, which is arranged on one side of the rotating block; An installation frame, which is fixedly connected to one side of the hydraulic control bottom plate; A spring seat plate, which is fixedly connected to one side of the installation frame; A fixing rod, which is fixedly connected to the spring seat plate; A valve spring, which is movably connected to one end of the fixing rod; An adjusting toothed plate, which is fixedly connected to one side of the installation frame; A detection and adjustment module, which is located on one side of the hydraulic control bottom plate. The detection and adjustment module includes a guide rail member, which is fixedly connected to one side of the hydraulic control bottom plate, and a micro switch is fixedly connected to the guide rail member.
[0006] In a preferred embodiment, a rotation hole is formed in the hydraulic control bottom plate, a rotating shaft is rotatably connected in the rotation hole, an adjusting stop plate and a rotating member are fixedly connected to the outside of the rotating shaft, two clamping grooves are formed in the rotating member, and a sliding member is slidably connected inside the guide rail member. One end of the sliding member is fixedly connected to a rotating frame, and a movable wheel is rotatably connected to the rotating frame.
[0007] In a preferred embodiment, one end of the sliding member away from the rotating frame is fixedly connected to a touching member, and a second spring is wound around the outside of the sliding member. One end of the second spring is fixedly connected to the sliding member, and the other end is fixedly connected to the inner wall of the guide rail member.
[0008] In a preferred embodiment, a sliding seat is fixedly connected to one side of the adjusting stop plate, a control rod is slidably connected inside the sliding seat, an adjusting tooth block is fixedly connected to the bottom end of the control rod, the adjusting tooth block meshes with the adjusting tooth plate, and a first spring is wound around the outside of the control rod. The upper end of the first spring is fixedly connected to the bottom of the sliding seat, and the lower end is fixedly connected to the top of the adjusting tooth block. An installation member is fixedly connected to the side of the adjusting stop plate away from the sliding seat, a pulling wire is fixedly connected to the installation member, and one end of the pulling wire away from the installation member is fixedly connected to the connecting plate.
[0009] In a preferred embodiment, an arc-shaped frame is fixedly connected to one side of the adjusting tooth plate, a sliding groove is formed in the arc-shaped frame, a tooth ring is slidably connected in the sliding groove, an installation seat is fixedly connected to one side of the tooth ring, an installation sleeve is fixedly connected to the installation seat, a piston seat is slidably connected to the inner wall of the installation sleeve, a movable rod is slidably connected to the inner wall of the piston seat, and the top end of the movable rod is fixedly connected to the adjusting tooth block.
[0010] In a preferred embodiment, an air pump one is fixedly connected to one side of the installation seat, and an output end of the air pump one is fixedly connected to a delivery pipe. One end of the delivery pipe away from the delivery pump is communicated with the installation sleeve.
[0011] In a preferred embodiment, a driving motor is fixedly connected to one side of the arc-shaped frame, and an output end of the driving motor is fixedly connected to a gear one. The gear one meshes with the tooth ring.
[0012] In a preferred embodiment, a cleaning module is arranged below the valve pull spring. The cleaning module includes an installation rod frame fixedly connected to one side of the installation frame, and a movable frame is movably connected to the outside of the installation rod frame. An installation hole is formed in the movable frame, a threaded rod is rotatably connected in the installation hole, a gear two is fixedly connected to the outside of the threaded rod, a universal motor is fixedly connected to the bottom of the movable frame, and an output end of the universal motor is fixedly connected to a gear three. The gear two meshes with the gear three.
[0013] In a preferred embodiment, a sliding table is connected to the outside of the threaded rod through threads. An annular pipe is fixedly connected to the sliding table. A plurality of air outlet holes are equidistantly arranged on the annular pipe in a circumferential manner. One side of the sliding table is fixedly connected with an air pump two. The output end of the air pump two is fixedly connected with a connecting pipe. The end of the connecting pipe far away from the air pump two is communicated with the annular pipe.
[0014] In a preferred embodiment, a fixing member is fixedly connected to the bottom of the movable frame. Two sliding rods are fixedly connected to the fixing member. The outside of the two sliding rods is slidably connected with the same sliding frame. The movable frame is movably connected to the lower end of the connecting plate. Springs three are wound around the outside of the two sliding rods. One end of each of the two springs three is fixedly connected to the fixing member, and the other end is fixedly connected to the sliding frame.
[0015] As can be seen from the above, an electro-controlled seedling table lifting hydraulic valve mechanism provided by the present invention realizes the automatic monitoring and feedback of the hydraulic valve gear position deviation through the precise cooperation of the movable wheel and the card slot and the micro-switch detection mechanism, uses the pneumatic execution unit to cooperate with the transmission to complete the deviation correction, significantly improves the reliability of the gear position switching and the positioning accuracy, and greatly improves the stability of the system operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic diagram of the overall structure of an electro-controlled seedling table lifting hydraulic valve mechanism proposed by the present invention; Figure 2 is a schematic diagram of the structure at the mounting frame of an electro-controlled seedling table lifting hydraulic valve mechanism proposed by the present invention; Figure 3 is a schematic diagram of the structure at the liquid control bottom plate of an electro-controlled seedling table lifting hydraulic valve mechanism proposed by the present invention; Figure 4 is a schematic diagram of the structure of the detection and adjustment module of an electro-controlled seedling table lifting hydraulic valve mechanism proposed by the present invention; Figure 5 is a schematic diagram of the structure at the gear ring of the detection and adjustment module of an electro-controlled seedling table lifting hydraulic valve mechanism proposed by the present invention; Figure 6 is a schematic diagram of the structure at the rotating part of the detection and adjustment module of an electro-controlled seedling table lifting hydraulic valve mechanism proposed by the present invention; Figure 7 is a schematic diagram of the structure of the cleaning module of an electro-controlled seedling table lifting hydraulic valve mechanism proposed by the present invention; Figure 8 is a schematic diagram of the structure at the movable frame of the cleaning module of an electro-controlled seedling table lifting hydraulic valve mechanism proposed by the present invention.
[0017] In the figure: 1, mounting bracket; 2, fixing bracket; 3, hydraulic control bottom plate; 4, hydraulic lifting control valve; 5, rotating block; 6, connecting plate; 7, detection and adjustment module; 701, arc-shaped bracket; 702, driving motor; 703, gear one; 704, rotating part; 705, toothed ring; 706, mounting seat; 707, mounting sleeve; 708, piston seat; 709, movable rod; 710, air pump one; 711, conveying pipe; 712, card slot; 713, guide rail part; 714, micro switch; 715, sliding part; 716, touching part; 717, spring two; 718, rotating bracket; 719, movable wheel; 8, cleaning module; 801, mounting rod bracket; 802, movable bracket; 803, threaded rod; 804, gear two; 805, general motor; 806, gear three; 807, sliding table; 808, annular pipe; 809, connecting pipe; 810, air pump two; 811, sliding bracket; 812, fixing part; 813, sliding rod; 814, spring three; 9, pull spring seat plate; 10, fixing rod; 11, valve pull spring; 12, rotating shaft; 13, adjusting stop plate; 14, adjusting toothed plate; 15, sliding seat; 16, control rod; 17, spring one; 18, mounting part; 19, pull wire; 20, adjusting toothed block. Detailed implementation manners
[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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.
[0019] An electronically controlled seedling table lifting hydraulic valve mechanism disclosed by the present invention is mainly applied to scenarios where the lifting control is unstable due to jamming caused by the deviation of the orientation of the adjusting stop plate or the misalignment at the adjusting toothed plate during the switching of the lifting gear of the hydraulic valve.
[0020] Referring to Figures 1 - 8 , an electronically controlled seedling table lifting hydraulic valve mechanism includes a hydraulic control bottom plate 3; A fixing bracket 2, and the fixing bracket 2 is fixedly connected to one side of the hydraulic control bottom plate 3; A hydraulic lifting control valve 4, and the hydraulic lifting control valve 4 is fixedly connected to one side of the fixing bracket 2; A rotating block 5, and the rotating block 5 is movably connected to one side of the hydraulic lifting control valve 4; A connecting plate 6, and the connecting plate 6 is arranged on one side of the rotating block 5; A mounting bracket 1, and the mounting bracket 1 is fixedly connected to one side of the hydraulic control bottom plate 3; A pull spring seat plate 9, and the pull spring seat plate 9 is fixedly connected to one side of the mounting bracket 1; A fixing rod 10, and the fixing rod 10 is fixedly connected to the pull spring seat plate 9; A valve pull spring 11, and the valve pull spring 11 is movably connected to one end of the fixing rod 10; Adjust the toothed plate 14, and the toothed plate 14 is fixedly connected to one side of the mounting bracket 1; The detection and adjustment module 7 is located on one side of the hydraulic control bottom plate 3. The detection and adjustment module 7 includes a guide rail member 713. The guide rail member 713 is fixedly connected to one side of the hydraulic control bottom plate 3, and a microswitch 714 is fixedly connected to the guide rail member 713.
[0021] Refer to Figure 1 、 Figure 4 and Figure 6 As shown in
[0022] Refer to Figure 1 、 Figure 4 and Figure 6 As shown in
[0023] Refer to Figure 1 、 Figure 2 and Figure 3 As shown in
[0024] Refer to Figure 1 、 Figure 4 and Figure 5 As shown in
[0025] Reference Figure 1 , Figure 4 and Figure 5 One side of the mounting seat 706 is fixedly connected to an air pump 710 , and the output end of the air pump 710 is fixedly connected to a delivery pipe 711 , and the end of the delivery pipe 711 away from the delivery pump is connected to the mounting sleeve 707 .
[0026] Reference Figure 1 , Figure 2 and Figure 4 A driving motor 702 is fixedly connected to one side of the arc frame 701, and a gear 1 703 is fixedly connected to the output end of the driving motor 702, and the gear 1 703 and the gear ring 705 are meshed with each other.
[0027] In a specific application scenario, when the adjustment stop plate 13 rotates, the rotating shaft 12 drives the rotating part 704 to rotate. Under the elastic action of the second spring 717, the sliding part 715 pushes the movable wheel 719 to move the surface of the rotating part 704. When the hydraulic valve is in different lifting and lowering gears, the movable wheel 719 is located in different slots 712. When the adjustment stop plate 13 has a deviation in orientation or the adjustment gear block 20 is misaligned, the movable wheel 719 cannot enter the slot 712. The sliding part 715 compresses the second spring 717 to push the touch piece 716 to contact the micro switch 714 for a long time, so that the deviation and misalignment can be detected, and the air pump 1 710 is started to pump air into the installation sleeve 707 through the delivery pipe 711, forcing the piston seat 708 to slide upward. , the movable rod 709 pushes the adjusting tooth block 20 to compress the spring 17 and separate from the adjusting tooth plate 14, and the drive motor 702 is started to rotate the gear 1 703, and the meshing drives the gear ring 705 to slide, driving the adjusting tooth block 20 to make a circular motion, and then drives the adjusting stop plate 13 to rotate to the correct position. At this time, the spring 2 717 elastically recovers and pushes the movable wheel 719 into the corresponding slot 712, and the trigger 716 is separated from the micro switch 714, and the misalignment signal is released. Through the cooperation of the movable wheel 719 and the slot 712 combined with the micro switch 714, the automatic monitoring and feedback of the gear deviation of the hydraulic valve is realized, and the pneumatic actuator is used to cooperate with the transmission to complete the deviation correction, which significantly improves the reliability and positioning accuracy of the gear switching, and greatly improves the stability of the system operation.
[0028] Reference Figure 1 , Figure 7 and Figure 8, a cleaning module 8 is arranged below the valve tension spring 11. The cleaning module 8 includes a mounting rod frame 801. The mounting rod frame 801 is fixedly connected to one side of the mounting frame 1, and an activity frame 802 is movably connected to the outside of the mounting rod frame 801. Mounting holes are formed in the activity frame 802, and a threaded rod 803 is rotatably connected in the mounting holes. A second gear 804 is fixedly connected to the outside of the threaded rod 803. A universal motor 805 is fixedly connected to the bottom of the activity frame 802. The output end of the universal motor 805 is fixedly connected to a third gear 806. The second gear 804 meshes with the third gear 806.
[0029] Refer to Figure 1 , Figure 7 and Figure 8 , a sliding table 807 is threadedly connected to the outside of the threaded rod 803. An annular pipe 808 is fixedly connected to the sliding table 807. A plurality of air outlet holes are circumferentially and equidistantly formed in the annular pipe 808. An air pump two 810 is fixedly connected to one side of the sliding table 807. The output end of the air pump two 810 is fixedly connected to a connecting pipe 809. One end of the connecting pipe 809 far from the air pump two 810 is communicated with the annular pipe 808.
[0030] Refer to Figure 1 , Figure 7 and Figure 8 , a fixing member 812 is fixedly connected to the bottom of the activity frame 802. Two sliding rods 813 are fixedly connected to the fixing member 812. The same sliding frame 811 is slidably connected to the outside of the two sliding rods 813. The activity frame 802 is movably connected to the lower end of the connecting plate 6. Springs three 814 are wound around the outside of the two sliding rods 813. One end of each of the two springs three 814 is fixedly connected to the fixing member 812, and the other end is fixedly connected to the sliding frame 811.
[0031] In a specific application scenario, when the connecting plate 6 rotates, it drives the sliding frame 811 to compress the spring three 814 and slide on the outside of the sliding rod 813, so that the activity frame 802 is parallel to the valve tension spring 11 for easy cleaning. The universal motor 805 is started to rotate the third gear 806. Through the meshing of the third gear 806 and the second gear 804, the threaded rod 803 is driven to rotate, forcing the sliding table 807 to move. The air pump two 810 is started to pump air into the annular pipe 808 through the connecting pipe 809, and the air is ejected from the air outlet holes to the valve tension spring 11 to clean the valve tension spring 11. The stable movement track of the annular pipe 808 is ensured through the synergistic effect of the sliding frame 811 and the spring mechanism, and the impurities attached to the valve tension spring 11 are effectively removed by the air flow, while ensuring the sensitivity of the mechanism and prolonging the service life of the key components.
[0032] Working principle: When the adjusting stop plate 13 rotates, the rotating shaft 12 drives the rotating member 704 to rotate. Under the elastic action of the second spring 717, the sliding member 715 pushes the movable wheel 719 to move on the surface of the rotating member 704. When the hydraulic valve is in different lifting and lowering gears, the movable wheel 719 is located in different slots 712. When the position of the adjusting stop plate 13 deviates or the adjusting tooth block 20 is misaligned, the movable wheel 719 cannot enter the slot 712. The sliding member 715 compresses the second spring 717 to push the touch member 716 to contact the micro switch 714 for a long time, so that the deviation and misalignment can be detected. , start the air pump 1 710 to pump air into the installation sleeve 707 through the delivery pipe 711, forcing the piston seat 708 to slide upward, and push the adjusting tooth block 20 through the movable rod 709 to compress the spring 17 and separate it from the adjusting tooth plate 14, start the drive motor 702 to rotate the gear 1 703, meshing and driving the gear ring 705 to slide, driving the adjusting tooth block 20 to make a circular motion, and then driving the adjusting stop plate 13 to rotate to the correct position, at this time, the spring 2 717 elastically recovers and pushes the movable wheel 719 into the corresponding slot 712, the trigger 716 is separated from the micro switch 714, and the misalignment signal is released; The pull wire 19 pulls the connecting plate 6 to drive the hydraulic valve to rotate counterclockwise to lift the seedling platform. When it needs to be lowered, the pull wire 19 is reset, and the reset force of the valve tension spring 11 pulls the control valve back to the lowered position. When the connecting plate 6 rotates, it drives the sliding frame 811 to compress the spring three 814 to slide outside the sliding rod 813, so that the movable frame 802 and the valve tension spring 11 remain parallel for easy cleaning. Start the universal motor 805 to rotate gear three 806, and through the mutual engagement of gear three 806 and gear two 804, drive the threaded rod 803 to rotate, forcing the sliding platform 807 to move, start the air pump two 810 to pump air into the annular tube 808 through the connecting pipe 809, and spray it to the valve tension spring 11 through the air outlet to clean the valve tension spring 11.
[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. An electric-controlled seedling platform lifting hydraulic valve mechanism, characterized in that: Including a hydraulic control base plate (3); A fixing frame (2), the fixing frame (2) being fixedly connected to one side of the hydraulic control bottom plate (3); A hydraulic lifting control valve (4), wherein the hydraulic lifting control valve (4) is fixedly connected to one side of the fixing frame (2); A rotating block (5), the rotating block (5) being movably connected to one side of the hydraulic lifting control valve (4); A connecting plate (6), wherein the connecting plate (6) is arranged on one side of the rotating block (5); A mounting frame (1), the mounting frame (1) being fixedly connected to one side of the hydraulic control base plate (3); A tension spring seat plate (9), wherein the tension spring seat plate (9) is fixedly connected to one side of the mounting frame (1); A fixing rod (10), wherein the fixing rod (10) is fixedly connected to the tension spring seat plate (9); A valve tension spring (11), wherein the valve tension spring (11) is movably connected to one end of the fixing rod (10); An adjusting tooth plate (14), wherein the adjusting tooth plate (14) is fixedly connected to one side of the mounting frame (1); A detection and adjustment module (7), the detection and adjustment module (7) being located on one side of the hydraulic control base plate (3), the detection and adjustment module (7) comprising a guide rail member (713), the guide rail member (713) being fixedly connected to one side of the hydraulic control base plate (3), and a micro switch (714) being fixedly connected to the guide rail member (713).
2. The electric-controlled seedling platform lifting hydraulic valve mechanism according to claim 1 is characterized in that: The hydraulic control bottom plate (3) is provided with a rotating hole, a rotating shaft (12) is rotatably connected in the rotating hole, an adjusting stop plate (13) and a rotating member (704) are fixedly connected to the outside of the rotating shaft (12), two slots (712) are provided on the rotating member (704), and a sliding member (715) is slidably connected to the inside of the guide rail member (713), one end of the sliding member (715) is fixedly connected to a rotating frame (718), and a movable wheel (719) is rotatably connected to the rotating frame (718).
3. The electric-controlled seedling platform lifting hydraulic valve mechanism according to claim 2 is characterized in that: One end of the sliding member (715) away from the rotating frame (718) is fixedly connected to a trigger member (716), and a second spring (717) surrounds the outside of the sliding member (715), one end of the second spring (717) is fixedly connected to the sliding member (715), and the other end is fixedly connected to the inner wall of the guide rail member (713).
4. The electric-controlled seedling platform lifting hydraulic valve mechanism according to claim 3 is characterized in that: One side of the adjustment stop plate (13) is fixedly connected to a sliding seat (15), a control rod (16) is slidably connected inside the sliding seat (15), the bottom end of the control rod (16) is fixedly connected to an adjustment tooth block (20), the adjustment tooth block (20) and the adjustment tooth plate (14) are meshed with each other, and a spring (17) is surrounded by the outside of the control rod (16), the upper end of the spring (17) is fixedly connected to the bottom of the sliding seat (15), and the lower end is fixedly connected to the top of the adjustment tooth block (20), and the side of the adjustment stop plate (13) away from the sliding seat (15) is fixedly connected to a mounting member (18), and the mounting member (18) is fixedly connected to a pull wire (19), and the end of the pull wire (19) away from the mounting member (18) is fixedly connected to the connecting plate (6).
5. The electric-controlled seedling platform lifting hydraulic valve mechanism according to claim 4 is characterized in that: One side of the adjusting tooth plate (14) is fixedly connected to an arc frame (701), and a sliding groove is provided on the arc frame (701), a tooth ring (705) is slidably connected in the sliding groove, one side of the tooth ring (705) is fixedly connected to a mounting seat (706), a mounting sleeve (707) is fixedly connected to the mounting seat (706), the inner wall of the mounting sleeve (707) is slidably connected to a piston seat (708), the inner wall of the piston seat (708) is slidably connected to a movable rod (709), and the top end of the movable rod (709) is fixedly connected to the adjusting tooth block (20).
6. The electric-controlled seedling platform lifting hydraulic valve mechanism according to claim 5 is characterized in that: One side of the mounting seat (706) is fixedly connected to an air pump (710), and the output end of the air pump (710) is fixedly connected to a delivery pipe (711), and the end of the delivery pipe (711) away from the delivery pump is in communication with the mounting sleeve (707).
7. The electric-controlled seedling platform lifting hydraulic valve mechanism according to claim 6 is characterized in that: A driving motor (702) is fixedly connected to one side of the arc-shaped frame (701), and a gear one (703) is fixedly connected to the output end of the driving motor (702), and the gear one (703) and the gear ring (705) are meshed with each other.
8. The electric-controlled seedling platform lifting hydraulic valve mechanism according to claim 1 is characterized in that: A cleaning module (8) is arranged below the valve tension spring (11), and the cleaning module (8) comprises a mounting rod frame (801), the mounting rod frame (801) is fixedly connected to one side of the mounting frame (1), and the mounting rod frame (801) is externally movably connected to a movable frame (802), a mounting hole is provided on the movable frame (802), a threaded rod (803) is rotatably connected in the mounting hole, a gear 2 (804) is externally fixedly connected to the threaded rod (803), a universal motor (805) is fixedly connected to the bottom of the movable frame (802), a gear 3 (806) is fixedly connected to the output end of the universal motor (805), and the gear 2 (804) and the gear 3 (806) are meshed with each other.
9. The electric-controlled seedling platform lifting hydraulic valve mechanism according to claim 8 is characterized in that: The outside of the threaded rod (803) is connected to a sliding platform (807) via a thread, and an annular tube (808) is fixedly connected to the sliding platform (807). A plurality of air outlet holes are equidistantly provided on the annular tube (808), and one side of the sliding platform (807) is fixedly connected to an air pump 2 (810), and an output end of the air pump 2 (810) is fixedly connected to a connecting tube (809), and an end of the connecting tube (809) away from the air pump 2 (810) is in communication with the annular tube (808).
10. The electric-controlled seedling platform lifting hydraulic valve mechanism according to claim 9 is characterized in that: The bottom of the movable frame (802) is fixedly connected to a fixing member (812), and two sliding rods (813) are fixedly connected to the fixing member (812). The outsides of the two sliding rods (813) are slidably connected to the same sliding frame (811). The movable frame (802) is movably connected to the lower end of the connecting plate (6), and the outsides of the two sliding rods (813) are surrounded by springs three (814), and one end of the two springs three (814) is fixedly connected to the fixing member (812), and the other end is fixedly connected to the sliding frame (811).