CN105424295B - The leak-testing apparatus of immersible pump - Google Patents

The leak-testing apparatus of immersible pump Download PDF

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Publication number
CN105424295B
CN105424295B CN201510889727.4A CN201510889727A CN105424295B CN 105424295 B CN105424295 B CN 105424295B CN 201510889727 A CN201510889727 A CN 201510889727A CN 105424295 B CN105424295 B CN 105424295B
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CN
China
Prior art keywords
cover
tank body
cable
immersible pump
installing plate
Prior art date
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Active
Application number
CN201510889727.4A
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Chinese (zh)
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CN105424295A (en
Inventor
毛益波
潘巍巍
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Zhejiang Shimge Pump Co Ltd
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Shimge Pump Industry Group Co Ltd
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Priority to CN201510889727.4A priority Critical patent/CN105424295B/en
Publication of CN105424295A publication Critical patent/CN105424295A/en
Application granted granted Critical
Publication of CN105424295B publication Critical patent/CN105424295B/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B51/00Testing machines, pumps, or pumping installations

Abstract

The invention belongs to detection device technical field, it is related to the leak-testing apparatus of immersible pump, the guide rod being fixed with the base of casing on the outside of pressure tank and tank body, the cover of pressurized tank is slidably installed on the guide rod between top plate and tank body and drives its lifting by cylinder, tank body is sealed by automatic locking device with cover, on cover bottom surface supporting plate is provided with the downside of fixed vertical installing plate, immersible pump positioning fixture and cylinder driving transverse shifting are used for the plug for blocking diving oil pumping chamber detection tabs, cylinder is provided with the middle part of cover and drives the plug moved up and down for blocking motor for submerged pump chamber detection tabs, cable neck and cable sealing latch segment are provided with the side wall of cover, advantage is:Control action is accurate, and accuracy of detection is high, and detection project is more, suitable for the high accuracy detection to immersible pump.

Description

The leak-testing apparatus of immersible pump
Technical field
The invention belongs to detection device technical field, refers in particular to a kind of leak-testing apparatus of immersible pump.
Background technology
Immersible pump is exactly as its name suggests that the water pump to be worked in water is slipped into when working, and requires very tight to the air-tightness of water pump Lattice;At present, common detection method has three kinds:When immersion method, second, pressure differential detection method, third, rare gas detection method three Kind.
Immersion method detection method is by toward the gas that certain pressure is filled with inside water pump, and by water pump submerged, is led to Cross operating personnel's eye observation water pump surface whether there is bubbling phenomenon, so as to judge the sealing of water pump;The detection mode exist with Some lower wretched insufficiency;First, water pump detection data can not quantify, human factor can not avoid;Second, the detection method and water pump Actual use operating mode deviates from, and the detection method can not ensure to exclude water pump seamless problem completely;Third, misoperation detection is stifled Stomata, the fragile water pump of submerged are not fully sealed for head;Fourth, immersion method influences process below, such as:Producing line is moist, drying energy Consumption is big, influences painting quality;Fifth, automatic detection transformation can not be completed.
Rare gas detection method accuracy of detection highest, rare gas recovery is more difficult, and the later stage is costly;
Differential pressure measuring method:There are vertical compression detection and differential pressure measuring, because water pump has cable leakage problem, and amount of leakage is not Unanimously, directly can not be detected using this method.
The content of the invention
It is an object of the invention to provide a kind of leak-testing apparatus of immersible pump.
The object of the present invention is achieved like this:
The leak-testing apparatus of immersible pump, including the tank body of casing and the pressurized tank being fixed on cabinet base, it is described More than three vertical guide rods are circumferentially evenly equipped with base on the outside of tank body, are fixed at the top of guide rod on top plate, pressure The cover of tank is slidably installed on the guide rod between top plate and tank body and the cylinder by being fixed on top plate drives its lifting, tank body It is sealed by automatic locking device with cover, supporting plate, diving are provided with cover bottom surface on the downside of fixed vertical installing plate Pump positioning fixture and cylinder driving transverse shifting are used for the plug for blocking diving oil pumping chamber detection tabs, and ventilation is provided with plug Road and sensor or the sensor detection line for being circumscribed with analog quantity pressure switch, it is provided with the middle part of cover in cylinder driving and moves down Employ in the plug of closure motor for submerged pump chamber detection tabs, be provided with cable neck and cable linear sealing in the side wall of cover Latch segment, safety valve, pressure switch are provided with and with valvular intake and exhaust pipe joint on tank body.
The upper surface of above-mentioned immersible pump supporting plate is provided with wear-resisting cushion block.
Vertical guide rail is provided with the downside of above-mentioned installing plate, described supporting plate is slidably installed on guide rail and by being arranged on One of some positioning holes of alignment pin insertion installing plate on supporting plate are positioned.
The side of above-mentioned casing is provided with air accumulator, and the escape pipe on air accumulator is respectively communicated with oil water separator by conduit And the inner chamber after the steam supply valve of solenoid-driven respectively with cylinder, the plug of closure diving oil pumping chamber detection tabs and pressurized tank connects It is logical, sensor is provided near automatic locking device, cable neck and in pressurized tank, in the casing both sides of tank body upper end Grating protector is provided with, receives the action of sensor and the signal control magnetic valve of grating protector transmission by controller And alarm lamp alarm.
Sealing ring is provided between above-mentioned cover and tank body, cable holder is provided with the upper surface of cover.
The concrete structure of above-mentioned immersible pump positioning fixture is:One end of the locking wall of c-type is by hinge on supporting plate On the installing plate of side, the other end be provided with hook, described hook can be horizontally rotated around bearing pin to installing plate side and described Installing plate side is hinged with the latch hook being stuck in by gravity on hook, locks the inner setting of the screw rod to be spun on the screwed hole at the middle part of wall There is locating piece, the cylinder of the plug of described driving closure diving oil pumping chamber detection tabs is arranged on the relative installing plate of locating piece On;Or
The concrete structure of the immersible pump positioning fixture is:One end of the locking wall of c-type is by hinge on supporting plate On the installing plate of side, the other end be provided with spliced eye, lock the spliced eye of wall can horizontally rotate around bearing pin to installing plate side and It is provided with lockhole on the jam plate that described installing plate side is set, the spliced eye of lockhole and locking wall on jam plate utilizes lock pin lock Close, lock the screw rod the inner to be spun on the screwed hole in the middle part of wall and be provided with locating piece, described driving closure diving oil pumping chamber inspection The plug cylinder for surveying joint is arranged on the relative installing plate of locating piece.
The concrete structure of cable neck and cable sealing latch segment is provided with the side wall of above-mentioned cover is:Cover Be provided with two cable necks in side wall, a cantilever set by bolt rotation on the cover of cable neck side, cantilever it is another What one end rotated is connected with cable sealing latch segment, cable sealing latch segment and the junction pair of cable neck two side The buckling groove and projection for coordinating clamping should be provided with, the bar hole set on cantilever as axle movement and can be rotated using bolt, or
The concrete structure of cable neck and cable sealing latch segment is provided with the side wall of the cover is:Cover Two cable necks are provided with side wall, two bolts hole, described cable are provided with the cover of cable neck both sides Linear sealing latch segment is locked on cover by bolt and two bolts hole.
The helium extension spring of balance cover weight is provided between above-mentioned top plate and cover.
The concrete structure of above-mentioned automatic locking device is:Circumferentially be arranged at intervals with the outer wall of tank body opening three with On fixed seat, the articulated section in the middle part of closing piece is hinged in fixed seat by jointed shaft, has latch hook, downside to have drive on the upside of closing piece Swing arm, power set driving is provided with the downside of actuating arm and is moved up and down and is sleeved on tank wall and is slidably installed on guide rod Drive ring, the tapered wedges that driving actuating arm rotates around jointed shaft are provided with drive ring;Cover covers in the opening of tank body and dynamic After power apparatus driving drive ring and tapered wedges move up, tapered wedges driving actuating arm, which rotates, makes the latch hook of closing piece be clamped on the upper of cover Tank body and cover auto lock are realized in surface, and described actuating arm can be hinged with arc-shaped actuating arm or described actuating arm The roller or bearing that are rolled on tapered wedges or the roller with bearing;Or
The concrete structure of described automatic locking device is:Circumferentially be arranged at intervals with the outer wall of tank body opening three with On fixed seat, the articulated section in the middle part of the closing piece of more than three is respectively hinged at by jointed shaft in the fixed seat of more than three, There are latch hook, downside to have actuating arm on the upside of each closing piece, each actuating arm is driven by the cylinder being arranged on tank body drive respectively Swing arm, which rotates, to be made the latch hook of closing piece be clamped on the upper surface of cover to realize tank body and cover auto lock.
The present invention is prominent and beneficial compared with prior art to be had the technical effect that:
1st, the present invention drives the moving up and down to drive actuating arm around be hinged of drive ring and tapered wedges by power set Axle rotates, and the latch hook of closing piece is clamped on the upper surface of cover and realizes tank body and cover auto lock, and sealed action is simple, soon Speed, locking force is uniform, and sealed fastness and stability are good.
2nd, the supporting plate and immersible pump positioning fixture that the downside of present invention installing plate fixed on cover bottom surface is set will be latent Water pump is positioned on cover, and the lifting of cover and immersible pump is controlled by cylinder, is easy to people easy to operation in erect position Region installing submersible pump, convenient operation.
3rd, the present invention sets cable neck and cable sealing latch segment on cover, can be by the cable of immersible pump By leading to outside tank body for tank body interior sealing, missed caused by giving detection due to the gap between electric wire in cable when reduction detects Difference, the accuracy of detection are significantly improved.
4th, pressure measxurement original paper of the invention uses sensor, the high sensitivity of sensor, and then causes the accurate of detection Property it is high.
5th, supporting plate of the invention is slidably installed on guide rail, by adjusting diverse location of the supporting plate on guide rail, suitable for not With the detection of size and the immersible pump of specification.
6th, the present invention carries out the sealing propertytest of immersible pump by air pressure, will not damage detected immersible pump;It will not go out Now because producing line is moist, dries energy consumption, influences situations such as painting quality caused by the sealing of immersion method detection immersible pump Occur.
7th, after the present invention is blocked immersible pump using the plug on cover and the plug of oil pocket detection tabs, can both detect Sealing between immersible pump and oil pocket motor cavity, the overall tightness of immersible pump can also be detected, the function of detection is more, accurately Property it is high.
8th, the present invention by controller receive sensor and grating protector transmission signal control magnetic valve action and Alarm lamp is alarmed, and control action is accurate, can prevent malfunction and cover malfunction whereabouts from hurting sb.'s feelings.
9th, the present invention is applied to detect the high accuracy of immersible pump.
Brief description of the drawings
Fig. 1 is the schematic perspective view of the present invention.
Fig. 2 is the front view of the present invention.
Fig. 3 is the rearview of the present invention.
Fig. 4 is the part-structure schematic perspective view of the present invention.
Fig. 5 is the part-structure side view of the present invention.
Fig. 6 is Fig. 4 A portions enlarged drawing.
Fig. 7 is Fig. 5 B portions enlarged drawing.
Embodiment
With specific embodiment, the invention will be further described below in conjunction with the accompanying drawings, referring to Fig. 1-Fig. 7:
The leak-testing apparatus of immersible pump, including the tank body of casing 37 and the pressurized tank being fixed on the base 44 of casing 37 10, more than three vertical guide rods 41 are circumferentially evenly equipped with the base 44 in the outside of the tank body 10, and the top of guide rod 41 is consolidated It is scheduled on top plate 38, the cover 21 of pressurized tank is slidably installed on the guide rod 41 between top plate 38 and tank body 10 and by being fixed on top Cylinder 39 on plate 38 drives its lifting, and tank body 10 is sealed by automatic locking device with cover 21, fixed on the bottom surface of cover 21 Vertical installing plate 17 downside be provided with supporting plate 28, immersible pump positioning fixture and cylinder driving transverse shifting be used for block it is latent The plug 16 of water pump oil pocket detection tabs, airway and sensor are provided with plug 16 or is circumscribed with analog quantity pressure switch Sensor detection line, the middle part of cover 21 are provided with the driving of cylinder 22 and moved up and down for blocking motor for submerged pump chamber detection tabs Plug 52, cable neck 56 and cable sealing latch segment 61 are provided with the side wall of cover 21, is provided with tank body 10 Safety valve 33, pressure switch 35 and with valvular intake and exhaust pipe joint 34.
The upper surface of above-mentioned immersible pump supporting plate 28 is provided with wear-resisting cushion block 25.
The downside of above-mentioned installing plate 17 is provided with vertical guide rail 18, and described supporting plate 28 is slidably installed on guide rail 18 and led to One of some positioning holes of the insertion installing plate 17 of alignment pin 63 being arranged on supporting plate 28 are crossed to be positioned.
The side of above-mentioned casing 37 is provided with air accumulator 36, and the escape pipe on air accumulator 36 is respectively communicated with profit by conduit The plug and pressure for oil pumping chamber detection tabs of being dived under water respectively with cylinder, closure after separator 51 and the air valve 50 of the driving of magnetic valve 49 The inner chamber connection of tank, is provided with sensor, in the upper end of tank body 10 near automatic locking device, cable neck and in tank body The both sides of casing 37 be provided with grating protector 43, the grating protector 43 on the elevator door both sides of vertical lift with setting Grating protector it is identical, the signal for receiving sensor and grating protector transmission by controller 45 controls the dynamic of magnetic valve Make and alarm lamp 47 is alarmed.
Sealing ring 29 is provided between above-mentioned cover 21 and tank body 10, being provided with cable on the upper surface of cover 21 puts Put box 19.
The concrete structure of above-mentioned immersible pump positioning fixture is:One end of the locking wall 26 of c-type is hinged on support by bearing pin 24 On the installing plate 17 of the upside of plate 28, the other end be provided with hook 54, described hook 54 can be horizontally rotated to installation around bearing pin 24 The side of plate 17 and being hinged with the described side of installing plate 17 is stuck in the latch hook 15 on hook 54 by gravity, locks the spiral shell at the middle part of wall 26 The inner of screw rod 27 to be spun on pit is provided with locating piece 14, the plug 16 of described driving closure diving oil pumping chamber detection tabs Cylinder be arranged on the relative installing plate 17 of locating piece 14;Or
The concrete structure of the immersible pump positioning fixture is:One end of the locking wall 26 of c-type is hinged on support by bearing pin 24 On the installing plate 17 of the upside of plate 28, the other end be provided with spliced eye, the spliced eye of locking wall 26 can horizontally rotate around bearing pin 24 to The side of installing plate 17 and lockhole is provided with the jam plate that the described side of installing plate 17 is set, the lockhole on jam plate and locking wall 26 Spliced eye is sealed using lock pin, and the inner of screw rod 27 to be spun on the screwed hole at the middle part of locking wall 26 is provided with locating piece 14, described The cylinders of plug 16 of driving closure diving oil pumping chamber detection tabs be arranged on the relative installing plate 17 of locating piece 14.
The concrete structure of cable neck 56 and cable sealing latch segment 61 is provided with the side wall of above-mentioned cover 21 is: Two cable necks 56 are provided with the side wall of cover 21, are set on the cover 21 of the side of cable neck 56 by the rotation of bolt 57 One cantilever 59, the cable that is connected with that the other end of cantilever 59 rotates seal latch segment 61, cable sealing latch segment 61 and electricity The junction of the two side of cable neck 56 is correspondingly arranged on the buckling groove 62 for coordinating clamping and projection 60, the bar set on cantilever 59 Shape hole 58 for axle movement and can be rotated with bolt 57, or
The concrete structure of cable neck 56 and cable sealing latch segment 61 is provided with the side wall of the cover 21 is: Two cable necks 56 are provided with the side wall of cover 21, two bolts are provided with the cover 21 of the both sides of cable neck 56 Hole, described cable sealing latch segment 61 are locked on cover 21 by bolt and two bolts hole.
The helium extension spring 40 of the balance weight of cover 21 is provided between above-mentioned top plate 38 and cover 21.
The concrete structure of above-mentioned automatic locking device is:Three are circumferentially arranged at intervals with the outer wall of the opening of tank body 10 Fixed seat 12 above, the articulated section at the middle part of closing piece 13 are hinged in fixed seat 12 by jointed shaft, and there is lock the upside of closing piece 13 Hook 131, downside have actuating arm 132, and the downside of actuating arm 132 is provided with power set driving and moves up and down and be sleeved on tank body 10 Outer wall and the drive ring 46 being slidably installed on guide rod 41, it is provided with what driving actuating arm 132 rotated around jointed shaft on drive ring 46 Tapered wedges 11, the top of tapered wedges 11 are that inwardly oblique inclined-plane 31, bottom are vertical plane 32 for upside;Cover 21 is covered in tank body 10 In opening and power set driving drive ring 46 and after tapered wedges 11 move up, tapered wedges 11, which drive actuating arm 132 to rotate, makes closing piece Tank body 10 and the auto lock of cover 21 are realized in the upper surface that 13 latch hook 131 is clamped on cover 21, and described actuating arm 132 is circle The roller 30 that can be rolled on tapered wedges 11 or bearing are hinged with arcuation actuating arm 132 or described actuating arm 132 or is carried The roller 30 of bearing;Or
The concrete structure of described automatic locking device is:Three are circumferentially arranged at intervals with the outer wall of the opening of tank body 10 Fixed seat 12 above, the articulated section at the middle part of closing piece 13 of more than three are respectively hinged at the fixation of more than three by jointed shaft On seat 12, the upside of each closing piece 13 has latch hook 131, downside to have actuating arm 132, and each actuating arm 132 is respectively by being arranged on Cylinder on tank body 10 drives the rotation of actuating arm 132 latch hook 131 of closing piece 13 is clamped on the upper surface of cover 21 and realizes tank body 10 with the auto lock of cover 21.
In addition, one is to connect or install inserts on the installing plate in tank body 10 or on the downside of cover 21, it is possible to reduce pressure The actual volume or volume of power tank inner chamber, reduce the charge of gas, good energy-conserving effect;Second, in automatic locking device, sealing Latch segment and microswitch or sensor or/and grating protector are set, it is ensured that switch at human users etc. In place.
Above-described embodiment is only presently preferred embodiments of the present invention, is not limited the scope of the invention according to this, therefore:It is all according to The equivalence changes that structure, shape, the principle of the present invention is done, all should be covered by within protection scope of the present invention.

Claims (9)

1. the leak-testing apparatus of immersible pump, including the tank body of casing and the pressurized tank being fixed on cabinet base, its feature It is:More than three vertical guide rods are circumferentially evenly equipped with base on the outside of the tank body, top is fixed at the top of guide rod On plate, the cover of pressurized tank is slidably installed on the guide rod between top plate and tank body and the cylinder by being fixed on top plate drives it Lifting, tank body is sealed by automatic locking device with cover, is provided with cover bottom surface on the downside of fixed vertical installing plate Supporting plate, immersible pump positioning fixture and cylinder driving transverse shifting are used for the plug for blocking diving oil pumping chamber detection tabs, on plug It is provided with airway and sensor or is circumscribed with the sensor detection line of analog quantity pressure switch, cylinder is provided with the middle part of cover Driving moves up and down plug for blocking motor for submerged pump chamber detection tabs, be provided with the side wall of cover cable neck and Cable seals latch segment, and safety valve, pressure switch are provided with and with valvular intake and exhaust pipe joint on tank body.
2. the leak-testing apparatus of immersible pump according to claim 1, it is characterised in that:The immersible pump supporting plate it is upper Surface is provided with wear-resisting cushion block.
3. the leak-testing apparatus of immersible pump according to claim 1, it is characterised in that:The downside of described installing plate Vertical guide rail is provided with, described supporting plate is slidably installed on guide rail and the alignment pin by being arranged on supporting plate inserts installing plate One of some positioning holes are positioned.
4. the leak-testing apparatus of immersible pump according to claim 1, it is characterised in that:The side of the casing is set There is an air accumulator, the escape pipe on air accumulator is respectively communicated with after oil water separator and the steam supply valve of solenoid-driven respectively by conduit Connected with the inner chamber of cylinder, the plug of closure diving oil pumping chamber detection tabs and pressurized tank, in automatic locking device, cable wire clamp Groove nearby and in pressurized tank is provided with sensor, the casing both sides of tank body upper end is provided with grating protector, by controlling Device receives the action and alarm lamp alarm of sensor and the signal control magnetic valve of grating protector transmission.
5. the leak-testing apparatus of immersible pump according to claim 1, it is characterised in that:Described cover and tank body it Between be provided with sealing ring, cable holder is provided with the upper surface of cover.
6. the leak-testing apparatus of immersible pump according to claim 1, it is characterised in that:The immersible pump positioning fixture Concrete structure be:One end of the locking wall of c-type by hinge on the installing plate on the upside of supporting plate, the other end be provided with extension Hook, described hook can horizontally rotate to installing plate side around bearing pin and is hinged with described installing plate side is stuck in hook by gravity On latch hook, lock the screw rod the inner to be spun on the screwed hole at the middle part of wall and be provided with locating piece, driving closure diving oil pumping chamber The cylinder of the plug of detection tabs is arranged on the relative installing plate of locating piece;Or
The concrete structure of the immersible pump positioning fixture is:One end of the locking wall of c-type is by hinge on the upside of supporting plate On installing plate, the other end be provided with spliced eye, locking the spliced eye of wall can horizontally rotate around bearing pin to installing plate side and described The jam plate that sets of installing plate side on be provided with lockhole, the spliced eye of the lockhole on jam plate and locking wall is sealed using lock pin, locks The screw rod the inner to be spun on screwed hole in the middle part of tight wall is provided with locating piece, the plug of driving closure diving oil pumping chamber detection tabs Cylinder is arranged on the relative installing plate of locating piece.
7. the leak-testing apparatus of immersible pump according to claim 1, it is characterised in that:Set in the side wall of the cover Being equipped with the concrete structure of cable neck and cable sealing latch segment is:Two cable wire clamps are provided with the side wall of cover Groove, a cantilever is set by bolt rotation on the cover of cable neck side, it is close that what the other end of cantilever rotated is connected with cable Latch segment is sealed, cable seals latch segment and the junction of cable neck two side is correspondingly arranged on the buckling groove for coordinating clamping And projection, the bar hole set on cantilever can be mobile and rotate as axle using bolt, or
The concrete structure of cable neck and cable sealing latch segment is provided with the side wall of the cover is:The side wall of cover On be provided with two cable necks, two bolts hole are provided with the cover of cable neck both sides, described cable is close Envelope latch segment is locked on cover by bolt and two bolts hole.
8. the leak-testing apparatus of immersible pump according to claim 1, it is characterised in that:Described top plate and cover it Between be provided with balance cover weight helium extension spring.
9. the leak-testing apparatus of the immersible pump according to any one of claim 1-8, it is characterised in that:It is described from Moving the concrete structure of lock uint is:The fixed seat of more than three, closing piece are circumferentially arranged at intervals with the outer wall of tank body opening The articulated section at middle part is hinged in fixed seat by jointed shaft, has latch hook, downside to have an actuating arm on the upside of closing piece, under actuating arm Side is provided with power set driving and moves up and down and be sleeved on tank wall and be slidably installed in the drive ring on guide rod, on drive ring It is provided with the tapered wedges that driving actuating arm rotates around jointed shaft;Cover covers in the opening of tank body and power set driving drive ring And after tapered wedges move up, tapered wedges drive actuating arm rotation the latch hook of closing piece is clamped on the upper surface of cover and realize tank body and tank Lid auto lock, described actuating arm are to be hinged with what can be rolled on tapered wedges on arc-shaped actuating arm or described actuating arm Roller or bearing or the roller with bearing;Or
The concrete structure of described automatic locking device is:More than three are circumferentially arranged at intervals with the outer wall of tank body opening Fixed seat, the articulated section in the middle part of the closing piece of more than three are respectively hinged at by jointed shaft in the fixed seat of more than three, each There are latch hook, downside to have actuating arm on the upside of closing piece, each actuating arm drives actuating arm by the cylinder being arranged on tank body respectively Rotating, which makes the latch hook of closing piece be clamped on the upper surface of cover, realizes tank body and cover auto lock.
CN201510889727.4A 2015-12-05 2015-12-05 The leak-testing apparatus of immersible pump Active CN105424295B (en)

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CN203627182U (en) * 2013-12-23 2014-06-04 国家海洋技术中心 Testing device for high pressure work for deep sea section platform buoyancy pump
CN104564643A (en) * 2015-01-06 2015-04-29 江苏大学 Immersed pump cavitation test bed
CN104949810A (en) * 2015-06-29 2015-09-30 新乡天翼过滤技术检测有限公司 Leak detector for filter
CN205246301U (en) * 2015-12-05 2016-05-18 新界泵业集团股份有限公司 Leakproofness check out test set of immersible pump

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