CN217582700U - Oil pollution monitoring device in hydraulic system - Google Patents

Oil pollution monitoring device in hydraulic system Download PDF

Info

Publication number
CN217582700U
CN217582700U CN202221191545.1U CN202221191545U CN217582700U CN 217582700 U CN217582700 U CN 217582700U CN 202221191545 U CN202221191545 U CN 202221191545U CN 217582700 U CN217582700 U CN 217582700U
Authority
CN
China
Prior art keywords
gear
ratchet
hydraulic system
box
monitoring device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202221191545.1U
Other languages
Chinese (zh)
Inventor
赵淑海
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vehan Dalian Industrial Equipment Co ltd
Original Assignee
Vehan Dalian Industrial Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vehan Dalian Industrial Equipment Co ltd filed Critical Vehan Dalian Industrial Equipment Co ltd
Priority to CN202221191545.1U priority Critical patent/CN217582700U/en
Application granted granted Critical
Publication of CN217582700U publication Critical patent/CN217582700U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Catching Or Destruction (AREA)

Abstract

The utility model belongs to the technical field of hydraulic pressure, especially, fluid pollution monitoring device among hydraulic system, to current sensor rigidity, the impurity that filters down is difficult to the problem of clearance, now proposes following scheme, and it is including detecting the box, the inside filter plate of detection box and the flow sensor that filter plate front side and rear side all bolted, the right side bolt of detecting the box has the link, through switching flow sensor's position, can be used for judging flow sensor has or not have the problem, because in the short time, the flow of oil feed end should be the same, just can assist the judgement through contrast switching flow sensor's monitoring numerical value before the switching and switching back flow sensor's monitoring numerical value, when the two numerical value has great difference, flow sensor just probably has a problem, and can guide the impurity that filters down to left through the rotation of spiral blade pole, avoid impurity to assemble in the bottom of filter plate.

Description

Oil pollution monitoring device in hydraulic system
Technical Field
The utility model relates to a hydraulic pressure technical field especially relates to a fluid pollution monitoring devices among hydraulic system.
Background
The hydraulic oil in the hydraulic system is an important material, the quality of the hydraulic oil has great influence on the normal operation of the hydraulic system, and at the moment, an oil pollution monitoring device is needed to be used and mainly judges the oil pollution condition by monitoring the flow of the hydraulic oil on two sides of a filter screen.
But the sensor of its monitoring flow of present fluid pollution monitoring devices often fixes in one side of filter screen, lead to one of them sensor to fix all the time at the oil feed end of filter screen, and another sensor fixes all the time at the oil outlet end of filter screen, the user can't detect immediately when the data that one of them sensor monitored goes wrong, also can't be through the position auxiliary judgment who switches two sensors, can only dismantle the sensor and detect, and the impurity that filters down often piles up in one side of filter screen, pile up the back easily and cause unfavorable influence to the patency of filter screen for a long time, when needing to clear up, can only dismantle the clearance with the device, therefore, the utility model provides a fluid pollution monitoring devices among hydraulic system for solve above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving and having sensor rigidity among the prior art, filtering the impurity that gets off and be difficult to the shortcoming of clearance, and the fluid pollution monitoring device among the hydraulic system who provides.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an fluid pollution monitoring devices among hydraulic system, includes the filter screen board and the filter screen board front side of detection box inside and the flow sensor of rear side equal bolt connection of detection box, the right side bolt of detection box has the link, the cavity bonding of detection box inside has the sealing washer, the right side bolt of filter screen board has the gear pole, the internal rotation of link is connected with drive gear, drive gear's surface bolt has ratchet gear, the left tooth meshing of drive gear has the gear train, the recess of the inside bottom of detection box rotates and cup joints spiral blade pole, the right-hand member of spiral blade pole extends to the inside of link and meshes with the tooth of gear train rear side, the tooth meshing on gear pole surface has adjustment mechanism, adjustment mechanism and ratchet gear meshing, through switching flow sensor's position, can be used for judging flow sensor has or not have the problem in the short time, because in the oil feed end's flow should be the same, through the monitoring value of the flow sensor before switching and the monitoring value of switching back flow sensor just can assist the judgement, when the numerical value of the two exists great difference, and just the impurity that can be filtered through the filter screen board rotation of filter screen board, the impurity of avoiding the impurity to the left side to lead the problem.
Preferably, the adjusting mechanism comprises a worm, a toothed disc group, a transmission rod, a moving block and a ratchet rack, the right end of the worm is rotatably sleeved with a hole in the right side of the connecting frame, the left end of the surface of the worm is meshed with teeth of the toothed disc group, the axis of the toothed disc group is rotatably connected with the inside of the connecting frame, the hole in the top end of the surface of the toothed disc group is hinged with the top end of the transmission rod, the bottom end of the transmission rod is hinged with the top end of the surface of the moving block, the rear side of the moving block is slidably connected with the inside of the connecting frame, a sliding hole in the left side of the moving block is slidably connected with the right end of the ratchet rack, and ratchets in the left side of the ratchet rack are meshed with the right side of the ratchet gear.
Further, the worm rotates, the gear disc group is composed of a worm wheel on the front side and a large rotating wheel on the rear side of the worm wheel, the gear disc group is meshed with the worm through the worm wheel, the worm can drive the gear disc group to rotate, the gear disc group can drive the transmission rod to move through an eccentric structure of the transmission rod, the transmission rod can drive the moving block to move, the moving block can drive the ratchet rack to move, and the ratchet rack can drive the ratchet gear to rotate.
Preferably, the top and the bottom of the left side of the moving block are both bolted with U-shaped spring pieces, and the left side of each U-shaped spring piece is bolted with the right side of the ratchet rack.
Furthermore, the U-shaped spring piece is mainly used for generating a force for moving the ratchet rack leftwards, so that the ratchet rack is always attached to the ratchet gear, when the ratchet rack moves upwards, the ratchet of the ratchet rack and the ratchet of the ratchet gear slide on the inclined plane, the ratchet rack is pressed rightwards, the structure of the U-shaped spring piece is convenient for the ratchet rack to move rightwards, and the force for moving the ratchet rack rightwards can be generated for the ratchet rack moving rightwards, so that the ratchet rack has a force for moving leftwards.
Preferably, the right end of the gear rod penetrates through a hole in the right side of the detection box and is rotatably sleeved with the right side in the connecting frame, a bevel gear is bolted to the surface of the gear rod and located in the connecting frame, and teeth on the top of the gear disk group are meshed with teeth on the surface of the gear rod.
Further, the tooth in the bull wheel outside is the skewed tooth insection, lets the bull wheel pass through the skewed tooth insection can with the gear pole meshing, lets the fluted disc group can drive the gear pole and rotate, the gear pole passes through the bearing and rotates with the splice frame and detect the box respectively and cup joint, lets the gear pole can rotate steadily.
Preferably, the gear set is composed of a pinion on the front side and a bevel gear on the rear side of the pinion, and the axis of the gear set is rotatably connected with the inside of the connecting frame.
Furthermore, a pinion of the gear set is meshed with the transmission gear, so that the transmission gear can drive the gear set to rotate conveniently, a bevel gear of the gear set is connected with the spiral blade rod, the gear set can drive the spiral blade rod to rotate conveniently, and the gear set is arranged in a rotating mode through the bearing and the connecting frame, so that the gear set can rotate stably.
Preferably, a collecting cavity is formed in the left side of the sliding groove in the detection box, the left end of the spiral blade rod corresponds to the inside of the collecting cavity, and the right end of the surface of the spiral blade rod is provided with conical insections.
Further, collect the chamber and detect the inside recess intercommunication of box, the impurity that the filter plate filtered down can fall into the recess downwards, lets to get into left by the guide of spiral blade pole and collects the chamber, and the insection of spiral blade pole surface right-hand member lets spiral blade pole can mesh with the gear train, makes things convenient for the gear train to drive spiral blade pole and rotates.
Has the advantages that:
1. the adjusting mechanism can drive the filter screen plate to rotate through the gear rod, the rotating filter screen plate can switch the positions of the front sensor and the rear sensor, and the problem of the sensors can be conveniently checked by the aid of the position change of the sensors;
2. the adjusting mechanism can drive the transmission gear to rotate through the ratchet gear, the transmission gear can drive the spiral blade rod to rotate through the gear set, and impurities are gathered leftwards, collected and cleaned by the rotation of the spiral blade rod;
the utility model discloses in: through switching flow sensor's position, can be used for judging flow sensor and have or not go wrong, because in the short time, the flow of oil feed end should be the same, flow sensor's monitoring numerical value and switching back flow sensor's monitoring numerical value just can assist the judgement before switching through the contrast, when the numerical value of the two has great difference, flow sensor just probably has the problem, and the rotation through the helical blade pole can guide the impurity that filters down left in addition, avoids impurity to assemble in filter plate's bottom.
Drawings
Fig. 1 is a schematic front view of an oil contamination monitoring device in a hydraulic system according to the present invention;
fig. 2 is a schematic front view of an adjusting mechanism of an oil contamination monitoring device in a hydraulic system according to the present invention;
fig. 3 is a rear view structural diagram of a ratchet rack of the oil contamination monitoring device in the hydraulic system according to the present invention;
fig. 4 is a schematic perspective view of a moving block of the oil contamination monitoring device in the hydraulic system according to the present invention.
In the figure: 1. a detection cartridge; 2. an adjustment mechanism; 21. a worm; 22. a fluted disc set; 23. a transmission rod; 24. a moving block; 25. a ratchet rack; 3. a filter screen plate; 4. a flow sensor; 5. a connecting frame; 6. a seal ring; 7. a gear lever; 8. a transmission gear; 9. a ratchet gear; 10. a gear set; 11. a helical blade shaft; 12. a U-shaped spring piece.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example one
Referring to fig. 1-4, an oil contamination monitoring device in a hydraulic system comprises a detection box 1, a filter screen plate 3 inside the detection box 1, and a flow sensor 4 bolted to both the front side and the rear side of the filter screen plate 3, a connection frame 5 is bolted to the right side of the detection box 1, a sealing ring 6 is bonded to a cavity inside the detection box 1, a gear rod 7 is bolted to the right side of the filter screen plate 3, a transmission gear 8 is rotatably connected to the inside of the connection frame 5, a ratchet gear 9 is bolted to the surface of the transmission gear 8, a gear set 10 is meshed to the teeth on the left side of the transmission gear 8, a helical blade rod 11 is rotatably sleeved to a groove at the bottom end inside the detection box 1, the right end of the helical blade rod 11 extends to the inside of the connection frame 5 and is meshed with the teeth on the rear side of the gear set 10, an adjusting mechanism 2 is meshed to the teeth on the surface of the gear rod 7, the adjusting mechanism 2 is meshed with the ratchet gear 9, the adjusting mechanism 2 is rotatably sleeved to the connection frame 5, the hole at the front end of the detection box 1 is communicated with the oil outlet end of a hydraulic system pipeline, the hole at the rear side of the detection box 1 is communicated with the oil inlet end of the hydraulic system pipeline, a hydraulic system is started, two flow sensors 4 at the front and the rear of a filter screen plate 3 monitor flow data, a rotation adjusting mechanism 2 can drive a gear rod 7 to rotate, the gear rod 7 can drive the filter screen plate 3 to rotate, the rotating filter screen plate 3 can switch the positions of the two flow sensors 4 at the front and the rear, a sealing ring 6 can wrap and seal the outer side of the filter screen plate 3, the adjusting mechanism 2 can drive a ratchet gear 9 to rotate, the ratchet gear 9 can drive a gear set 10 to rotate, the gear set 10 can drive a spiral blade rod 11 to rotate, the spiral blade rod 11 can drive impurities to move by utilizing the auger structure of the spiral blade rod 11, and can be used for judging whether the flow sensors 4 have problems or not by switching the positions of the flow sensors 4, because in the short time, the flow of oil feed end should be the same, just can assist the judgement through the monitoring numerical value of comparing flow sensor 4 before switching and the monitoring numerical value of switching back flow sensor 4, when the numerical value of the two has great difference, flow sensor 4 just probably has the problem, and the rotation through spiral blade pole 11 can guide the impurity that filters down left in addition, avoids impurity to assemble in the bottom of filter plate 3.
The utility model discloses in, adjustment mechanism 2 includes worm 21, fluted disc group 22, transfer line 23, movable block 24 and ratchet frame 25, the right-hand member of worm 21 rotates with the hole on connecting frame 5 right side and cup joints, the left end on worm 21 surface and the meshing of the tooth of fluted disc group 22, the axle center department of fluted disc group 22 is connected with the inside rotation of connecting frame 5, the hole on fluted disc group 22 surface top is articulated with the top of transfer line 23, the bottom of transfer line 23 is articulated with the top on movable block 24 surface, the rear side of movable block 24 and the inside sliding connection of connecting frame 5, the right-hand member sliding connection of the left sliding hole of movable block 24 and ratchet frame 25, the left ratchet of ratchet frame 25 meshes with the right side of ratchet gear 9, rotate worm 21, fluted disc group 22 comprises the worm wheel of front side and the big runner of worm wheel rear side, fluted disc group 22 passes through worm wheel and worm wheel 21 meshing, let worm 21 can drive fluted disc group 22 and rotate, fluted disc group 22 can utilize the eccentric structure with transfer line 23 to drive transfer line 23 and move, transfer line 23 can drive movable block 24 and move, movable block 24 can drive ratchet frame 25 and move, ratchet frame 25 rotates, ratchet frame 25 can drive ratchet 9.
The utility model discloses in, U type spring leaf 12 has all been bolted to the left top of movable block 24 and bottom, the left side of U type spring leaf 12 and the right side bolt of ratchet frame 25, U type spring leaf 12 is mainly used for producing the power way of left movement to ratchet frame 25, let ratchet frame 25 hug closely with ratchet gear 9 all the time, when ratchet frame 25 moves up, the ratchet of ratchet frame 25 slides on the inclined plane with ratchet gear 9's ratchet, and ratchet frame 25 is extrudeed right, the convenient ratchet frame 25 of structure of U type spring leaf 12 moves right, and can produce the power way of left movement to ratchet frame 25 that moves right, let ratchet frame 25 have the power of left movement.
The utility model discloses in, the right-hand member of gear pole 7 runs through the hole on detection box 1 right side and rotates with the inside right side of splice frame 5 and cup joints, the surface of gear pole 7 has the skewed tooth gear and is located the inside bolt of splice frame 5, the tooth at fluted disc group 22 top and the tooth meshing on gear pole 7 surface, the tooth in the bull wheel outside is the skewed tooth insection, let the bull wheel pass through the skewed tooth insection can with the meshing of gear pole 7, let fluted disc group 22 can drive gear pole 7 and rotate, gear pole 7 passes through the bearing and rotates with splice frame 5 and detection box 1 respectively and cup joint, let gear pole 7 can rotate steadily.
The utility model discloses in, gear train 10 comprises the pinion of front side and the conical gear of pinion rear side, the axle center department of gear train 10 is connected with the inside rotation of connection frame 5, the pinion and the meshing of drive gear 8 of gear train 10 make things convenient for drive gear 8 to drive gear train 10 and rotate, the conical gear of gear train 10 is connected with spiral blade pole 11, make things convenient for gear train 10 to drive spiral blade pole 11 and rotate, gear train 10 passes through the bearing and rotates the setting with connection frame 5, let gear train 10 can rotate steadily.
The utility model discloses in, the left side that detects 1 inside spout of box is seted up and is collected the chamber, the left end of spiral blade pole 11 corresponds with the inside of collecting the chamber, the right-hand member on spiral blade pole 11 surface is the toper insection, collect the chamber and detect 1 inside recess intercommunication of box, filter plate 3 filters the impurity that gets off and can fall into the recess downwards, let get into left by spiral blade pole 11 and collect the chamber, the insection of spiral blade pole 11 surface right-hand member lets spiral blade pole 11 can mesh with gear train 10, make things convenient for gear train 10 to drive spiral blade pole 11 and rotate.
Example two
This example differs from example 1 in that: replace ratchet rack 25 for rack, replace ratchet gear 9 for straight-tooth gear, let rack can drive straight-tooth gear and rotate, but rack still can drive straight-tooth gear and rotate when moving up, can't let spiral blade pole 11 unidirectional rotation, consequently, this application is preferred for ratchet rack 25 and ratchet gear 9.
The working principle is as follows: the method comprises the steps of communicating a hole at the front end of a detection box 1 with an oil outlet end of a hydraulic system pipeline, communicating a hole at the rear side of the detection box 1 with an oil inlet end of the hydraulic system pipeline, starting a hydraulic system, monitoring flow data by two flow sensors 4 in front of and behind a filter screen plate 3, rotating a worm 21, wherein a gear plate group 22 is composed of a worm wheel at the front side and a large rotating wheel at the rear side of the worm wheel, teeth at the outer side of the large rotating wheel are helical teeth, the large rotating wheel can be meshed with a gear rod 7 through the helical teeth, the gear plate group 22 can drive the gear rod 7 to rotate, the gear rod 7 can drive the filter screen plate 3 to rotate, the rotating filter screen plate 3 can switch the positions of the two flow sensors 4 at the front and the rear, a sealing ring 6 can wrap and seal the outer side of the filter screen plate 3, the gear plate group 22 can be meshed with the worm 21 through the worm wheel, the worm 21 can drive the gear plate group 22 to rotate, the gear plate group 22 can drive a transmission rod 23 to move downwards by using an eccentric structure of the transmission rod 23, the transmission rod 23 can drive the transmission rod 24 to move downwards, a moving block 24 to move downwards, the rack 25 can drive the ratchet 9 to rotate clockwise, the screw rod 11 to drive the spiral gear group to rotate, and the spiral auger 11 to drive the spiral blade to rotate left, and the auger 11 to collect impurities inside the spiral rod 11.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. The utility model provides an oil pollution monitoring device among hydraulic system, is including detecting box (1), the inside filter plate (3) of detecting box (1) and flow sensor (4) of the equal bolt connection of filter plate (3) front side and rear side, its characterized in that, the right side bolt joint of detecting box (1) has connect connection box (5), the cavity bonding of detecting box (1) inside has sealing washer (6), the right side bolt joint of filter plate (3) has gear pole (7), the internal rotation of connection box (5) is connected with drive gear (8), the surface bolt of drive gear (8) has ratchet gear (9), the left tooth meshing of drive gear (8) has gear train (10), the recess rotation of detecting box (1) inside bottom has cup jointed spiral blade pole (11), the right-hand member of spiral blade pole (11) extends to the inside of connection box (5) and with the tooth meshing of gear train (10) rear side, the tooth meshing of gear pole (7) surface has adjustment mechanism (2), adjustment mechanism (2) and ratchet (9) meshing.
2. The oil contamination monitoring device in a hydraulic system according to claim 1, wherein the adjusting mechanism (2) comprises a worm (21), a set of toothed discs (22), a transmission rod (23), a moving block (24) and a ratchet rack (25), the right end of the worm (21) is rotatably sleeved with a hole on the right side of the connecting frame (5), the left end of the surface of the worm (21) is meshed with teeth of the set of toothed discs (22), the axial center of the set of toothed discs (22) is rotatably connected with the inside of the connecting frame (5), a hole on the top end of the surface of the set of toothed discs (22) is hinged with the top end of the transmission rod (23), the bottom end of the transmission rod (23) is hinged with the top end of the surface of the moving block (24), the rear side of the moving block (24) is slidably connected with the inside of the connecting frame (5), a sliding hole on the left side of the moving block (24) is slidably connected with the right end of the ratchet rack (25), and the left side of the ratchet rack (25) is meshed with the right side of the ratchet gear (9).
3. The oil contamination monitoring device in a hydraulic system according to claim 2, wherein a U-shaped spring plate (12) is bolted to the top and the bottom of the left side of the moving block (24), and the left side of the U-shaped spring plate (12) is bolted to the right side of the ratchet rack (25).
4. The oil contamination monitoring device in the hydraulic system according to claim 2, wherein the right end of the gear rod (7) penetrates through the hole on the right side of the detection box (1) and is rotatably sleeved with the right side inside the connection frame (5), a bevel gear is bolted on the surface of the gear rod (7) and inside the connection frame (5), and the teeth on the top of the tooth disk set (22) are meshed with the teeth on the surface of the gear rod (7).
5. An oil contamination monitoring device in a hydraulic system according to claim 1, wherein the gear set (10) is composed of a pinion on the front side and a bevel gear on the rear side of the pinion, and the axis of the gear set (10) is rotatably connected to the inside of the connection frame (5).
6. The oil contamination monitoring device in the hydraulic system according to claim 1, wherein a collection chamber is opened on the left side of the chute inside the detection box (1), the left end of the spiral blade rod (11) corresponds to the inside of the collection chamber, and the right end of the surface of the spiral blade rod (11) is provided with a conical insection.
CN202221191545.1U 2022-05-17 2022-05-17 Oil pollution monitoring device in hydraulic system Active CN217582700U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221191545.1U CN217582700U (en) 2022-05-17 2022-05-17 Oil pollution monitoring device in hydraulic system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221191545.1U CN217582700U (en) 2022-05-17 2022-05-17 Oil pollution monitoring device in hydraulic system

Publications (1)

Publication Number Publication Date
CN217582700U true CN217582700U (en) 2022-10-14

Family

ID=83552774

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221191545.1U Active CN217582700U (en) 2022-05-17 2022-05-17 Oil pollution monitoring device in hydraulic system

Country Status (1)

Country Link
CN (1) CN217582700U (en)

Similar Documents

Publication Publication Date Title
CN217582700U (en) Oil pollution monitoring device in hydraulic system
CN210237335U (en) Gate water purification device for hydraulic engineering
CN112403062A (en) Wisdom building water treatment circulation system
CN112473224A (en) Grease filter equipment is used in grain oil processing
CN115603465B (en) Power distribution network load transfer data monitoring and controlling system and method based on big data
CN111957378A (en) Soil ectopic chemical leaching and repairing device
CN214954651U (en) Intelligent comprehensive control system is collected to rainwater
CN201857464U (en) Double-bag type mechanism for collecting dust outside machine
CN113640056B (en) Quick sampling mechanism for silicate ion detection
CN213803025U (en) Food and beverage sewage separates sediment oil interceptor
CN215841835U (en) Dangerous waste landfill leachate filter equipment
CN116892988B (en) Ultrasonic flow metering device and control method thereof
CN112843808A (en) Construction sewage treatment plant
CN219433024U (en) Vacuum oiling device for hydraulic knife handle
CN220016010U (en) Oil leakage prevention exhaust device for cycloid speed reducer
CN219792534U (en) Environment-friendly hospital domestic sewage filtration equipment
CN217818884U (en) Anti-blocking flowmeter
CN215275860U (en) Alkaloid extraction equipment
CN219890860U (en) Beet sample solution preparation equipment
CN219897198U (en) Iron metal powder processing wastewater filtration equipment
CN209596689U (en) One kind is every dirty flowmeter
CN220676898U (en) Concentrated solution recycling and filtering device
CN219091331U (en) Environment measuring water sample filter equipment
CN220644432U (en) Rainwater collecting device
CN114576406B (en) Blow-down valve with anti-blocking function

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: A monitoring device for oil contamination in hydraulic systems

Effective date of registration: 20230328

Granted publication date: 20221014

Pledgee: Industrial and Commercial Bank of China Limited Dalian high tech Park sub branch

Pledgor: VEHAN (DALIAN) INDUSTRIAL EQUIPMENT CO.,LTD.

Registration number: Y2023980036524