CN110440045B - Servo water pressure control device - Google Patents
Servo water pressure control device Download PDFInfo
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- CN110440045B CN110440045B CN201910738432.5A CN201910738432A CN110440045B CN 110440045 B CN110440045 B CN 110440045B CN 201910738432 A CN201910738432 A CN 201910738432A CN 110440045 B CN110440045 B CN 110440045B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention belongs to the field of hydraulic pressure servo control elements, in particular to a servo hydraulic pressure control device, and aims at solving the problems that an existing end cover is inconvenient to disassemble and a power supply connector is inconvenient to use. According to the invention, the end cover is more convenient to disassemble through the matching of the clamping block and the clamping rod, so that the disassembling time of the end cover can be shortened when the control valve is maintained, the maintenance efficiency is improved, and meanwhile, the cover plate is pulled open to drive the junction box by the power supply connector, so that a worker can conveniently use the power supply connector.
Description
Technical Field
The invention relates to the technical field of hydraulic servo control elements, in particular to a servo hydraulic control device.
Background
In the 1993 mechanical shaking meeting of the japan oil air compression society of 7, 8 days, shankou of the national university of the cross-frontier of japan, a servo valve using tap water as a medium is introduced, a torque motor part adopts a permanent magnet type, the displacement of a valve core is mainly adjusted by the torque balance between a feedback rod and two ends of the valve core, only the displacement of the valve core is mainly measured by a displacement sensor and then fed back to the torque motor to be adjusted by the feedback rod, a first-stage throttling is adopted from a filter to the front end of a nozzle, the valve core and a valve sleeve are tightly sealed, and the zero position distance between the nozzle opening and a baffle reaches 0.3 mm.
The invention discloses a hydraulic servo valve with the publication number of CN100441887C, which is suitable for a hydraulic system of high-water-base working media such as seawater and fresh water, and has the advantages of high working pressure, strong anti-cavitation capacity, small abrasion loss, small leakage amount, high efficiency, good linearity, small null shift and small impact vibration acceleration.
Disclosure of Invention
The invention aims to solve the defects that an end cover is inconvenient to disassemble and a power supply connector is inconvenient to use in the prior art, and provides a servo water pressure control device.
In order to achieve the purpose, the invention adopts the following technical scheme:
the servo water pressure control device comprises a control valve, wherein both sides of the control valve are provided with end covers, the control valve is provided with a power supply connector, the end cover is provided with two clamping holes, clamping rods are movably arranged in the two clamping holes, one ends of the two clamping rods are fixedly arranged on the control valve, the other ends of the two clamping rods are movably sleeved with clamping blocks, one side of each clamping block is provided with a clamping groove, the clamping blocks are provided with an installation cavity, the inner wall of one side of the installation cavity is provided with a push hole and a jack, a push rod is movably arranged in the push hole, one end of each clamping rod extends into the clamping groove and contacts with one side of the push rod, an inserting rod is movably arranged in the jack, one side of each clamping rod is provided with a slot, one end of each inserting rod extends into the slot, and the end cover is more convenient to disassemble through the matching of the clamping blocks and, therefore, when the control valve is maintained, the disassembly time of the end cover can be shortened, and the maintenance efficiency is improved.
Preferably, fixed mounting has the terminal box on the control valve, all seted up the spout on the top side of terminal box and the bottom side inner wall, slidable mounting has same slide in two spouts, power connection fixed mounting is on one side of slide, one side of terminal box rotates through the hinge and installs the apron, one side fixed mounting of apron has the drawing frame, one side movable mounting who draws the frame has the pull rod, one side of pull rod is rotated and is installed T type pole, one side of T type pole and one side looks adaptation of slide, draw a block apron, can make the slide drive the outer convenient to use of terminal box with power connection.
Preferably, a rotating shaft is fixedly installed on the inner wall of one side of the junction box, the T-shaped rod is movably sleeved on the rotating shaft, and the T-shaped rod rotates on the rotating shaft.
Preferably, one end of the first spring is fixedly mounted on the inner wall of one side of the sliding groove, the other end of the first spring is fixedly mounted on one side of the sliding plate, and two sides of the sliding plate horizontally move in the two sliding grooves to enable the two first springs to be stressed.
Preferably, two pull shafts are fixedly mounted on one side of the pull rod, a pull hole is formed in one side of the T-shaped rod, one ends of the two pull shafts respectively penetrate through the pull hole and the pull frame, the cover plate is pulled, the pull frame drives the pull rod to move, and the pull rod pulls the T-shaped rod to move.
Preferably, rotate on the inner wall of one side of installation cavity and install the bull stick, one side of bull stick rotates and installs the connecting rod, and one side of connecting rod rotates and installs on one side of inserted bar, and one side of connecting rod rotates and installs the switching pole, and the ejector pin drives the connecting rod through the switching pole and rotates, and the connecting rod rotates and drives the bull stick and rotate.
Preferably, the elliptical hole has been seted up on the one side inner wall of installation cavity, the one end fixed mounting of push rod has the ejector pin, one side of switching pole is rotated and is installed on one side of ejector pin, the one end of ejector pin runs through the elliptical hole and rotates and install the ellipse piece, one side of ellipse piece is seted up flutedly, the circular slot has been seted up to the annular on the inner wall of recess, circular slot internal movable mounting has the circle piece, the one end fixed mounting of ejector pin is on one side of circle piece, the fixed cover has connect the baffle on the ejector pin, the baffle contacts with one side inner wall of installation cavity, the ejector pin drives the ellipse piece out outside the elliptical hole simultaneously, rotatory ellipse piece makes it perpendicular with the elliptical hole this moment, the elliptical hole is plugged up to.
Preferably, one end of a second spring is fixedly mounted on the inner wall of one side of the pushing hole, the other end of the second spring is fixedly mounted on one side of the pushing rod, and the clamping block is inserted into one end of the clamping rod at the moment, so that the clamping rod pushes the pushing rod to move and the second spring is stressed.
In the invention, because the clamping hole, the clamping rod and the clamping block are arranged, the clamping block is inserted into one end of the clamping rod, and the end cover can be arranged on one side of the control valve, so that the end cover is convenient to disassemble and assemble;
in the invention, the junction box, the cover plate and the pull block cover plate are arranged, so that the power connector is driven out of the junction box by the sliding plate for convenient use;
according to the invention, the end cover is more convenient to disassemble through the matching of the clamping block and the clamping rod, so that the disassembling time of the end cover can be shortened when the control valve is maintained, the maintenance efficiency is improved, and meanwhile, the cover plate is pulled open to drive the junction box by the power supply connector, so that a worker can conveniently use the power supply connector.
Drawings
FIG. 1 is a schematic structural diagram of a servo hydraulic control apparatus according to the present invention;
FIG. 2 is a schematic structural view of the connection between the end cap and the fixture block of the servo water pressure control device according to the present invention;
FIG. 3 is a schematic structural diagram of a portion A of FIG. 2 of the servo water pressure control apparatus according to the present invention;
FIG. 4 is a schematic structural diagram of a portion B of the servo water pressure control apparatus according to the present invention;
fig. 5 is a schematic view of a connection box structure of the servo water pressure control device according to the present invention.
In the figure: the device comprises a control valve 1, an end cover 2, a clamping hole 3, a clamping rod 4, a clamping block 5, a junction box 6, a clamping groove 7, an installation cavity 8, a pushing hole 9, a pushing rod 10, an insertion hole 11, an insertion rod 12, an insertion slot 13, a connecting rod 14, a rotating rod 15, a switching rod 16, a push rod 17, an elliptical hole 18, a baffle plate 19, an elliptical block 20, a sliding groove 21, a sliding plate 22, a power connector 23, a cover plate 24, a pull frame 25, a pull rod 26, a rotating shaft 27, a T-shaped rod 28, a groove 29, a circular groove 30 and a circular block 31.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
Referring to fig. 1-5, the servo water pressure control device comprises a control valve 1, wherein both sides of the control valve 1 are respectively provided with an end cover 2, the control valve 1 is provided with a power supply connector 23, the end cover 2 is provided with two clamping holes 3, clamping rods 4 are movably arranged in the two clamping holes 3, one ends of the two clamping rods 4 are fixedly arranged on the control valve 1, the other ends of the two clamping rods 4 are respectively movably sleeved with a clamping block 5, one side of the clamping block 5 is provided with a clamping groove 7, the clamping block 5 is provided with an installation cavity 8, the inner wall of one side of the installation cavity 8 is provided with a push hole 9 and a jack 11, a push rod 10 is movably arranged in the push hole 9, one end of the clamping rod 4 extends into the clamping groove 7 and contacts with one side of the push rod 10, an inserting rod 12 is movably arranged in the jack 11, one side of the clamping rod 4 is provided with a slot 13, one end of the inserting, the disassembly of the end cover 2 is more convenient, so that the disassembly time of the end cover 2 can be shortened when the control valve 1 is maintained, and the maintenance efficiency is improved.
According to the invention, a junction box 6 is fixedly arranged on a control valve 1, sliding grooves 21 are respectively formed in the inner walls of the top side and the bottom side of the junction box 6, the same sliding plate 22 is arranged in the two sliding grooves 21 in a sliding manner, a power supply connector 23 is fixedly arranged on one side of the sliding plate 22, a cover plate 24 is rotatably arranged on one side of the junction box 6 through a hinge, a pull frame 25 is fixedly arranged on one side of the cover plate 24, a pull rod 26 is movably arranged on one side of the pull frame 25, a T-shaped rod 28 is rotatably arranged on one side of the pull rod 26, one side of the T-shaped rod 28 is matched with one side of the sliding plate 22, and the cover plate 24 is pulled.
In the invention, a rotating shaft 27 is fixedly arranged on the inner wall of one side of the junction box 6, a T-shaped rod 28 is movably sleeved on the rotating shaft 27, and the T-shaped rod 28 rotates on the rotating shaft 27.
According to the invention, one end of a first spring is fixedly arranged on the inner wall of one side of each sliding chute 21, the other end of the first spring is fixedly arranged on one side of each sliding plate 22, and two sides of each sliding plate 22 horizontally move in the two sliding chutes 21 to enable the two first springs to bear force.
According to the invention, two pull shafts are fixedly arranged on one side of the pull rod 26, a pull hole is formed in one side of the T-shaped rod 28, one ends of the two pull shafts respectively penetrate through the pull hole and the pull frame 25, the cover plate 24 is pulled, the pull frame 25 drives the pull rod 26 to move, and the pull rod 26 pulls the T-shaped rod 28 to move.
According to the invention, a rotating rod 15 is rotatably arranged on the inner wall of one side of an installation cavity 8, a connecting rod 14 is rotatably arranged on one side of the rotating rod 15, one side of the connecting rod 14 is rotatably arranged on one side of an inserted rod 12, an adapter rod 16 is rotatably arranged on one side of the connecting rod 14, an ejector rod 17 drives the connecting rod 14 to rotate through the adapter rod 16, and the connecting rod 14 rotates to drive the rotating rod 15 to rotate.
According to the invention, an elliptical hole 18 is formed in the inner wall of one side of an installation cavity 8, an ejector rod 17 is fixedly installed at one end of a push rod 10, one side of an adapter rod 16 is rotatably installed on one side of the ejector rod 17, one end of the ejector rod 17 penetrates through the elliptical hole 18 and is rotatably installed with an elliptical block 20, a groove 29 is formed in one side of the elliptical block 20, a circular groove 30 is annularly formed in the inner wall of the groove 29, a circular block 31 is movably installed in the circular groove 30, one end of the ejector rod 17 is fixedly installed on one side of the circular block 31, a baffle plate 19 is fixedly sleeved on the ejector rod 17, the baffle plate 19 is in contact with the inner wall of one side of the installation cavity 8, the elliptical block 20 is driven out of the elliptical hole 18 by the ejector rod 17, the elliptical block 20 is rotated to be perpendicular to the elliptical hole.
According to the invention, one end of a second spring is fixedly arranged on the inner wall of one side of the push hole 9, the other end of the second spring is fixedly arranged on one side of the push rod 10, and at the moment, the clamping block 5 is inserted into one end of the clamping rod 4, so that the clamping rod 4 pushes the push rod 10 to move and the second spring is stressed.
Example 2
Referring to fig. 1-5, the servo water pressure control device comprises a control valve 1, wherein both sides of the control valve 1 are respectively provided with an end cover 2, the control valve 1 is provided with a power connector 23, the end cover 2 is provided with two clamping holes 3, clamping rods 4 are movably arranged in the two clamping holes 3, one ends of the two clamping rods 4 are fixedly arranged on the control valve 1 by welding, the other ends of the two clamping rods 4 are movably sleeved with clamping blocks 5, one side of each clamping block 5 is provided with a clamping groove 7, the clamping block 5 is provided with an installation cavity 8, the inner wall of one side of the installation cavity 8 is provided with a push hole 9 and an insertion hole 11, a push rod 10 is movably arranged in the push hole 9, one end of each clamping rod 4 extends into the clamping groove 7 and contacts with one side of the push rod 10, an insertion rod 12 is movably arranged in the insertion hole 11, one side of each clamping rod 4 is provided with an insertion groove 13, one end of the insertion, the disassembly of the end cover 2 is more convenient, so that the disassembly time of the end cover 2 can be shortened when the control valve 1 is maintained, and the maintenance efficiency is improved.
According to the invention, the control valve 1 is fixedly provided with the junction box 6 by welding, the top side and the bottom side inner wall of the junction box 6 are respectively provided with the sliding grooves 21, the two sliding grooves 21 are internally and slidably provided with the same sliding plate 22, the power connector 23 is fixedly arranged on one side of the sliding plate 22 by welding, one side of the junction box 6 is rotatably provided with the cover plate 24 by a hinge, one side of the cover plate 24 is fixedly provided with the pull frame 25 by welding, one side of the pull frame 25 is movably provided with the pull rod 26, one side of the pull rod 26 is rotatably provided with the T-shaped rod 28, one side of the T-shaped rod 28 is matched with one side of the sliding plate 22, and the cover plate 24 is pulled, so that.
According to the invention, a rotating shaft 27 is fixedly arranged on the inner wall of one side of the junction box 6 through welding, the T-shaped rod 28 is movably sleeved on the rotating shaft 27, and the T-shaped rod 28 rotates on the rotating shaft 27.
According to the invention, one end of a first spring is fixedly arranged on the inner wall of one side of each sliding groove 21 through welding, the other end of the first spring is fixedly arranged on one side of each sliding plate 22 through welding, and two sides of each sliding plate 22 horizontally move in the two sliding grooves 21 to enable the two first springs to bear force.
According to the invention, two pull shafts are fixedly arranged on one side of the pull rod 26 through welding, a pull hole is formed in one side of the T-shaped rod 28, one ends of the two pull shafts respectively penetrate through the pull hole and the pull frame 25, the cover plate 24 is pulled, the pull frame 25 drives the pull rod 26 to move, and the pull rod 26 pulls the T-shaped rod 28 to move.
According to the invention, a rotating rod 15 is rotatably arranged on the inner wall of one side of an installation cavity 8, a connecting rod 14 is rotatably arranged on one side of the rotating rod 15, one side of the connecting rod 14 is rotatably arranged on one side of an inserted rod 12, an adapter rod 16 is rotatably arranged on one side of the connecting rod 14, an ejector rod 17 drives the connecting rod 14 to rotate through the adapter rod 16, and the connecting rod 14 rotates to drive the rotating rod 15 to rotate.
According to the invention, an elliptical hole 18 is formed in the inner wall of one side of an installation cavity 8, an ejector rod 17 is fixedly installed at one end of a push rod 10 through welding, one side of an adapter rod 16 is rotatably installed on one side of the ejector rod 17, one end of the ejector rod 17 penetrates through the elliptical hole 18 and is rotatably installed with an elliptical block 20, a groove 29 is formed in one side of the elliptical block 20, a circular groove 30 is annularly formed in the inner wall of the groove 29, a circular block 31 is movably installed in the circular groove 30, one end of the ejector rod 17 is fixedly installed on one side of the circular block 31 through welding, a baffle 19 is fixedly sleeved on the ejector rod 17 through welding, the baffle 19 is in contact with the inner wall of one side of the installation cavity 8, the elliptical block 20 is driven out of the elliptical hole 18 by the ejector rod 17, the elliptical block 20 is rotated to be perpendicular to the elliptical hole 18.
According to the invention, one end of a second spring is fixedly arranged on the inner wall of one side of the push hole 9 through welding, the other end of the second spring is fixedly arranged on one side of the push rod 10 through welding, and at the moment, the clamping block 5 is inserted into one end of the clamping rod 4, so that the clamping rod 4 pushes the push rod 10 to move and the second spring is stressed.
In the invention, an end cover 2 is placed on one side of a control valve 1, so that one end of a clamping rod 4 penetrates through a clamping hole 3, a clamping block 5 is inserted into one end of the clamping rod 4, so that the clamping rod 4 pushes a push rod 10 to move and a second spring is stressed, so that an ejector rod 17 moves, the ejector rod 17 drives a connecting rod 14 to rotate through an adapter rod 16, the connecting rod 14 rotates to drive a rotating rod 15 to rotate, so as to drive an insertion rod 12 to move, so that one end of the insertion rod 12 is inserted into a slot 13, so that the clamping rod 4 is fixed, meanwhile, the ejector rod 17 drives an elliptical block 20 out of the elliptical hole 18, at the moment, the elliptical block 20 is rotated to be perpendicular to the elliptical hole 18, meanwhile, a baffle plate 19 blocks the elliptical hole 18, installation can be completed, when a power supply connector 23 needs to be used, a cover plate 24 is pulled, so that a pull frame 25 drives a pull rod 26 to move, the pull rod 26 pulls, the two sides of the sliding plate 22 move horizontally in the two sliding grooves 21 and make the two first springs bear force, so that the sliding plate 22 drives the power connector 23 out of the junction box 6 for use.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The servo water pressure control device comprises a control valve (1), wherein end covers (2) are arranged on two sides of the control valve (1), and a power connector (23) is arranged on the control valve (1), and is characterized in that two clamping holes (3) are formed in the end covers (2), clamping rods (4) are movably arranged in the two clamping holes (3), one ends of the two clamping rods (4) are fixedly arranged on the control valve (1), clamping blocks (5) are movably sleeved on the other ends of the two clamping rods (4), a clamping groove (7) is formed in one side of each clamping block (5), a mounting cavity (8) is formed in each clamping block (5), a push hole (9) and a jack (11) are formed in the inner wall of one side of the mounting cavity (8), a push rod (10) is movably arranged in the push hole (9), one end of each clamping rod (4) extends into the corresponding clamping groove (7) and is in contact with one side of the push rod (10, an inserting rod (12) is movably arranged in the inserting hole (11), a slot (13) is formed in one side of the clamping rod (4), and one end of the inserting rod (12) extends into the slot (13);
a rotating rod (15) is rotatably mounted on the inner wall of one side of the mounting cavity (8), a connecting rod (14) is rotatably mounted on one side of the rotating rod (15), one side of the connecting rod (14) is rotatably mounted on one side of the inserting rod (12), and a switching rod (16) is rotatably mounted on one side of the connecting rod (14);
elliptical hole (18) have been seted up on the one side inner wall of installation cavity (8), the one end fixed mounting of push rod (10) has ejector pin (17), one side rotation of adapter rod (16) is installed on one side of ejector pin (17), the one end of ejector pin (17) runs through elliptical hole (18) and rotates and install oval piece (20), one side of oval piece (20) is seted up fluted (29), circular slot (30) have been seted up to the annular on the inner wall of recess (29), movable mounting has circle piece (31) in circular slot (30), the one end fixed mounting of ejector pin (17) is on one side of circle piece (31), fixed cover has connect baffle (19) on ejector pin (17), baffle (19) contact with the one side inner wall of installation cavity (8).
2. The servo water pressure control device according to claim 1, wherein the control valve (1) is fixedly provided with a junction box (6), the inner walls of the top side and the bottom side of the junction box (6) are respectively provided with a sliding groove (21), the two sliding grooves (21) are internally provided with the same sliding plate (22) in a sliding manner, the power supply connector (23) is fixedly arranged on one side of the sliding plate (22), one side of the junction box (6) is rotatably provided with a cover plate (24) through a hinge, one side of the cover plate (24) is fixedly provided with a pull frame (25), one side of the pull frame (25) is movably provided with a pull rod (26), one side of the pull rod (26) is rotatably provided with a T-shaped rod (28), and one side of the T-shaped rod (28) is matched.
3. The servo water pressure control device as claimed in claim 2, wherein a rotating shaft (27) is fixedly installed on one side inner wall of the junction box (6), and the T-shaped rod (28) is movably sleeved on the rotating shaft (27).
4. The servo water pressure control device according to claim 2, wherein one end of the first spring is fixedly installed on one side inner wall of the sliding groove (21), and the other end of the first spring is fixedly installed on one side of the sliding plate (22).
5. The servo water pressure control device as claimed in claim 2, wherein a pull shaft is fixedly installed at each of both sides of the pull rod (26), a pull hole is opened at one side of the T-shaped rod (28), and one end of each of the two pull shafts penetrates through the pull hole and the pull frame (25).
6. The servo water pressure control device according to claim 1, wherein one end of the second spring is fixedly installed on an inner wall of one side of the push hole (9), and the other end of the second spring is fixedly installed on one side of the push rod (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910738432.5A CN110440045B (en) | 2019-08-12 | 2019-08-12 | Servo water pressure control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910738432.5A CN110440045B (en) | 2019-08-12 | 2019-08-12 | Servo water pressure control device |
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| CN110440045A CN110440045A (en) | 2019-11-12 |
| CN110440045B true CN110440045B (en) | 2020-11-13 |
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| CN201910738432.5A Active CN110440045B (en) | 2019-08-12 | 2019-08-12 | Servo water pressure control device |
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| CN111098947A (en) * | 2019-12-18 | 2020-05-05 | 南京涵曦月自动化科技有限公司 | Bionic climbing robot |
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| KR20040087377A (en) * | 2003-04-07 | 2004-10-14 | 정성필 | execution method of front panel adapt oneself to circumstances for cutting part the ground and the front panel for the same |
| CN201401554Y (en) * | 2009-04-28 | 2010-02-10 | 彭美友 | Water valve |
| CN206017930U (en) * | 2016-08-09 | 2017-03-15 | 佛山市联若五金实业有限公司 | A kind of valve fittings being convenient for changing |
| CN206458872U (en) * | 2017-02-16 | 2017-09-01 | 上海建东科技有限公司 | A kind of magnetic valve |
| CN206682091U (en) * | 2017-03-06 | 2017-11-28 | 鹤山市波士顿卫浴实业有限公司 | A kind of position limiting structure being connected for valve body with housing |
| CN108811382A (en) * | 2018-05-29 | 2018-11-13 | 孝感市奇思妙想文化传媒有限公司 | A kind of speech equipment easy to maintenance |
| CN208475255U (en) * | 2018-06-08 | 2019-02-05 | 华荣科技股份有限公司 | A kind of reflective mirror |
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Denomination of invention: Servo hydraulic control device Effective date of registration: 20210820 Granted publication date: 20201113 Pledgee: Shandong Longkou Rural Commercial Bank Co.,Ltd. Fushan sub branch Pledgor: YANTAI ZHONGYU AEROHYDRAULIC Co.,Ltd. Registration number: Y2021980008092 |