CN204152741U - Water pump for mining - Google Patents

Water pump for mining Download PDF

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Publication number
CN204152741U
CN204152741U CN201420560331.6U CN201420560331U CN204152741U CN 204152741 U CN204152741 U CN 204152741U CN 201420560331 U CN201420560331 U CN 201420560331U CN 204152741 U CN204152741 U CN 204152741U
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CN
China
Prior art keywords
pump
plunger
mining
admission chamber
cooling tube
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.)
Expired - Fee Related
Application number
CN201420560331.6U
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Chinese (zh)
Inventor
叶元勇
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.)
Zhejiang Zhong Bo Mining Machinery Co Ltd
Original Assignee
Zhejiang Zhong Bo Mining Machinery 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 Zhejiang Zhong Bo Mining Machinery Co Ltd filed Critical Zhejiang Zhong Bo Mining Machinery Co Ltd
Priority to CN201420560331.6U priority Critical patent/CN204152741U/en
Application granted granted Critical
Publication of CN204152741U publication Critical patent/CN204152741U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of water pump for mining, its drip irrigation device is a kind of water pump for mining, comprise base, motor, the pump housing, shaft joint and gear reduction box, the described pump housing is provided with pressure lubrication device, described pressure lubrication device comprises gear pump, sebific duct and cooling tube, described gear pump side is communicated with crankshaft cavity opposite side and is connected with cooling tube by sebific duct, the other end that described cooling tube is communicated with gear pump is connected with crankshaft cavity by sebific duct, described cooling tube is arranged in admission chamber, the described pump housing is provided with admission chamber lid, the described admission chamber portion of covering is provided with vent hole, described admission chamber covers and is provided with cork at air vent corresponding position, aim to provide a kind of pressure high, flow is large and have the water pump for mining in good heat dispersion and longer working life.

Description

Water pump for mining
Technical field
The utility model relates to a kind of water plunger pump, and more particularly, it relates to a kind of water pump for mining.
Background technique
Along with the development of domestic mining activities, there is hydraulic extraction machine on the market, ore on drive wall is carried out separation cuts by the hydraulic cutter passed through, along with mining activities working efficiency progressively improves, existing water pump has been difficult to the actual demand meeting hydraulic extraction machine, pressure and flow in order to improve water pump in the production of reality need to increase the plunger quantity in plunges pump body usually, diameter, stroke realizes, but thereupon also find that the working life of plunger pump is shorter and shorter, its main cause is exactly that the existing pump housing just simply uses lubricant oil to lubricate bent axle and plunger, when load is excessive, bent axle and the lubrication between plunger and each parts are difficult to ensure, a large amount of heats can be produced between surface of contact and be difficult to cooling, each position parts depreciation in work is caused seriously to make pump housing premature aging.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide that a kind of pressure is high, flow large and have the water pump for mining in good heat dispersion and longer working life.
For achieving the above object, the utility model provides following technological scheme: a kind of water pump for mining, comprise base, motor, the pump housing, shaft joint and gear reduction box, the described pump housing comprises bent axle, crankshaft cavity, plunger, admission chamber, plunger cavity, pump head component and cylinder sleeve component, described motor and the pump housing are all fixed on base, described motor output end connects gear reduction box input shaft by shaft joint, described gear reduction box output shaft connects described bent axle, the described pump housing is provided with pressure lubrication device, described pressure lubrication device comprises gear pump, sebific duct and cooling tube, described gear pump side is communicated with crankshaft cavity opposite side and is connected with cooling tube by sebific duct, the other end that described cooling tube is communicated with gear pump is connected with crankshaft cavity by sebific duct, described cooling tube is arranged in admission chamber, the described pump housing is provided with admission chamber lid, the described admission chamber portion of covering is provided with vent hole, described admission chamber covers and is provided with cork at air vent corresponding position, described base is provided with fuel reserve tank, the circulating filtration module for circulate main fuel tank and fuel reserve tank fluid is provided with between described fuel reserve tank and main fuel tank, described circulating filtration module includes filters oil circuit and conveying oil circuit, described filtration oil circuit includes the first driven pump fluid of main fuel tank being delivered to fuel reserve tank, safety valve, one-way valve and some loine pressure filters, described conveying oil circuit includes one-way valve and the second driven pump for the fluid in fuel reserve tank being delivered to main fuel tank.
By adopting technique scheme, in crankshaft cavity, lubricant oil is filled during use, the heat produced in the process of crankshaft operation is passed to lubricant oil, and by gear pump, the lubricant oil in crankshaft cavity is delivered to cooling tube, the heat effectively being taken away lubricant oil in cooling tube in the process of discharging liquid by the liquid of normal temperature is sucked because cooling tube is arranged at the inherent admission chamber of admission chamber, eventually pass through the lubricant oil that sebific duct makes to be cooled and be again transmitted back to crankshaft cavity, refrigeration modes is scientific and reasonable, environmental protection, efficient energy-saving, improve the working life of product, meet power, the pump housing user demand of large discharge.The convenient admission chamber of opening of admission chamber lid is set regular maintenance is carried out to cooling tube, further vent hole is set by covering at admission chamber feed liquor chamber air can be discharged, liquid can be full of admission chamber, prevent from admission chamber liquid when feed liquor fluid from producing impact to cooling tube to have an impact to the stable connection of cooling tube, and can be sealed admission chamber by cork.
In addition, set up a fuel reserve tank, some oil for subsequent use can be stored in fuel reserve tank, because oil for subsequent use is in a kind of non-used state always, so the interior cleanliness that oil ratio for subsequent use plays main fuel tank wants high a lot, whole circulating filtration module includes two driven pumps, one of them driven pump is for saying that the fluid of main fuel tank is transported to fuel reserve tank, another is then that fuel reserve tank is transported to main fuel tank, like this after work a period of time, the oil of main fuel tank and fuel reserve tank just can through once changing, metre filter in pipeline, the fluid entering fuel reserve tank can be much pure, and do not use due to the fluid of fuel reserve tank, also the effect of purification fluid can be reached after precipitation after a while, the fluid of main fuel tank and fuel reserve tank can be made specifically to take after mixing it with water recycle, ensure the turbidity test of fluid, make equipment can ensure effective operation always, and the replacing reduced for fluid.
The utility model is set to further: described filtration oil circuit is also provided with pipeline cooler.
By adopting technique scheme, pipeline cooler can make the fluid of main fuel tank can remove fuel reserve tank through supercooling is laggard, ensure that the oil liquid temperature in fuel reserve tank, prevent in the process of circulation, the fluid that fuel reserve tank is transported to main fuel tank is high-temperature oil liquid.
The utility model is set to further: the position that described crankshaft cavity is communicated with gear pump is provided with filter, the position that crankshaft cavity is communicated with cooling tube is provided with one-way valve, cylindrical filter screen is provided with in described filter, crankshaft cavity is communicated with inside described filter screen, outside is communicated with gear pump, be provided with magnetic block inside described filter screen, described filter and crankshaft cavity removably connect.
By adopting technique scheme, because bent axle and miscellaneous part can produce wearing and tearing in operation process, in order to the chip blocking gear pump that produces after preventing from wearing and tearing and cooling tube, by cylindrical filter screen the chip in lubricant oil effectively filtered and collect, further the chip of irony is piled up inside filter screen prevent blocking filter screen by arranging magnetic block at its interior, and by removable filter device structure, conveniently the chip of cylindrical filter screen inside is carried out regular cleaning and removed, the chip adverse current preventing from producing in crankshaft cavity by arranging one-way valve to enter in cooling tube and cooling tube is blocked, ensure that lubricant oil unimpeded flowing between crankshaft cavity and cooling tube, thus ensure that heat dispersion and the working life of product.
The utility model is set to further: described air vent covers at admission chamber and is provided with many places.
By adopting technique scheme, due to cover at admission chamber be provided with many places vent hole can prevent the air that causes of injustice covering the internal surface when casting due to admission chamber from residing at cannot by situation about draining in admission chamber, in use liquid is filled with admission chamber finally by arranging cork, until vent hole one by one overflowing liquid time cork can effectively be prevented from beyond the Great Wall leaving air in admission chamber successively.
The utility model is set to further: the described pump housing is provided with plunger cavity lid, and described plunger cavity covers and is provided with ventilating hole.
By adopting technique scheme, because bent axle can make the spatial volume in plunger cavity change when driving plunger to do piston movement, existing pump housing plunger cavity covers and lacks ventilating hole, plunger cavity relatively airtight when spatial volume in plunger cavity changes easily causes obstruction to the piston movement of plunger, thus add the burden of crankshaft operation, exacerbate the generation of heat on bent axle, therefore the burden of crankshaft operation is decreased by arranging ventilating hole, decrease the generation of heat on bent axle, delay the aging of bent axle and plunger, improve the working life of product.
The utility model is set to further: described cylinder sleeve component comprises cylinder sleeve, guide sleeve, pad and plunger sealing washer, be provided with through hole along guide sleeve radial direction in the middle part of described guide sleeve, described cylinder sleeve is provided with for the oil dripping hole adding lubricant oil between plunger and cylinder sleeve in the position corresponding with through hole.
By adopting technique scheme, due to sealing relatively good between plunger and cylinder sleeve, make the lubricant oil of plunger at one end be difficult to carry out good lubrication to the surface of contact between plunger and cylinder sleeve, owing to lacking, lubricating to generate heat in a large number adds the negative gear of crankshaft operation simultaneously when relative movement for plunger and cylinder sleeve.Oil dripping hole is set and middlely can adds lubricant oil in oil dripping hole daily, lubricant oil is by arriving plunger surface after oil dripping hole and through hole, when plunger carries out piston movement, lubricant oil is able to play lubrication effect between plunger and cylinder sleeve between surface of contact, prevents excessive wear between plunger and cylinder sleeve from improve the working life of water pump.
The utility model is set to further: described oil dripping hole is greater than the level height of oil dripping hole at cylinder sleeve inner opposite end opening in the level height of cylinder sleeve lateral ends opening.
By adopting technique scheme, make lubricant oil can be poured into the effect in through hole, plunger being produced to oil sealing, only need determine to have in through hole the lubrication that lubricant oil can ensure between plunger and cylinder sleeve in the daily lubricated maintenance of plunger, simplify the lubricated maintenance process to plunger and cylinder sleeve.
The utility model is set to further: described through hole is greater than through hole average diameter at the side end face diameter near plunger, and described through hole is greater than through hole average diameter at the side end face diameter near cylinder sleeve.
By adopting technique scheme, increase the area of contact of lubricant oil and plunger, improve lubrication effect, and reduce when cylinder sleeve makes for the required precision of offering oil dripping hole, be convenient to process oil dripping hole on cylinder sleeve, oil dripping hole connected with through hole convenient.
Accompanying drawing explanation
Fig. 1 is the structure diagram of the utility model water pump for mining embodiment;
Fig. 2 is the plan view of the utility model water pump for mining embodiment pump housing;
Fig. 3 is the side view of the utility model water pump for mining embodiment pump housing;
Fig. 4 is the structure diagram of the utility model water pump for mining embodiment filter;
Fig. 5 is the structure diagram of the utility model water pump for mining embodiment cylinder sleeve component;
Fig. 6 is the partial enlarged drawing at the utility model water pump for mining embodiment A place;
Fig. 7 is the hydraulic schematic diagram of the circulating filtration module of the utility model water pump for mining embodiment.
Description of reference numerals: 1, base; 2, motor; 3, the pump housing; 31, bent axle; 32, crankshaft cavity; 33, plunger; 34, admission chamber; 341, admission chamber lid; 3411, vent hole; 35, plunger cavity; 36, pump head component; 37, cylinder sleeve component; 371, cylinder sleeve; 372, guide sleeve; 373, pad; 374, plunger sealing washer; 375, through hole; 376, oil dripping hole; 38, pressure lubrication device; 381, gear pump; 382, sebific duct; 383, cooling tube; 39, plunger cavity lid; 391, ventilating hole; 4, shaft joint; 5, gear reduction box; 6, filter; 61, filter screen; 62, magnetic block; 7, one-way valve; 81, oil circuit is filtered; 811, the first driven pump; 812, level meter; 813, fuel reserve tank; 814, loine pressure filter; 815, relief valve; 816, one-way valve; 817, pipeline cooler; 818, main fuel tank; 82, oil circuit is carried; 821, the second driven pump.
Embodiment
Referring to figs. 1 through Fig. 7, the utility model water pump for mining embodiment is described further.
A kind of water pump for mining, comprise base 1, motor 2, the pump housing 3, shaft joint 4 and gear reduction box 5, the described pump housing 3 comprises bent axle 31, crankshaft cavity 32, plunger 33, admission chamber 34, plunger cavity 35, pump head component 36 and cylinder sleeve component 37, described motor 2 and the pump housing 3 are all fixed on base 1, described motor 2 output terminal connects gear reduction box 5 input shaft by shaft joint 4, described gear reduction box 5 output shaft connects described bent axle 31, the described pump housing 3 is provided with pressure lubrication device 38, described pressure lubrication device 38 comprises gear pump 381, sebific duct 382 and cooling tube 383, described gear pump 381 side is communicated with crankshaft cavity 32 opposite side and is connected with cooling tube 383 by sebific duct 382, the other end that described cooling tube 383 is communicated with gear pump 381 is connected with crankshaft cavity 32 by sebific duct 382, described cooling tube 383 is arranged in admission chamber 34, the described pump housing 3 is provided with admission chamber lid 341, described admission chamber lid 341 top is provided with vent hole 3411, described admission chamber lid 341 is provided with cork at air vent corresponding position.In crankshaft cavity 32, lubricant oil is filled during use, the heat produced in the process operated by bent axle 31 is passed to lubricant oil, and by gear pump 381, the lubricant oil in crankshaft cavity 32 is delivered to cooling tube 383, the heat effectively being taken away lubricant oil in cooling tube 383 in the process of discharging liquid by the liquid of normal temperature is sucked because cooling tube 383 is arranged at the inherent admission chamber 34 of admission chamber 34, eventually pass through the lubricant oil that sebific duct 382 makes to be cooled and be again transmitted back to crankshaft cavity 32, refrigeration modes is scientific and reasonable, environmental protection, efficient energy-saving, improve the working life of product, meet power, the pump housing 3 user demand of large discharge.The convenient admission chamber 34 pairs of cooling tubes 383 of opening of admission chamber lid 341 are set and carry out regular maintenance, further by arranging vent hole 3411 on admission chamber lid 341, air in admission chamber 34 can be discharged, liquid can be full of admission chamber 34, prevent from admission chamber 34 liquid when feed liquor fluid from producing impact to cooling tube 383 to have an impact to the stable connection of cooling tube 383, and can be sealed admission chamber 34 by cork.
The position that described crankshaft cavity 32 is communicated with gear pump 381 is provided with filter 6, the position that crankshaft cavity 32 is communicated with cooling tube 383 is provided with one-way valve 7, cylindrical filter screen 61 is provided with in described filter 6, crankshaft cavity 32 is communicated with inside described filter screen 61, outside is communicated with gear pump 381, be provided with magnetic block 62 inside described filter screen 61, described filter 6 removably connects with crankshaft cavity 32.Because bent axle 31 and miscellaneous part can produce wearing and tearing in operation process, in order to the chip blocking gear pump 381 that produces after preventing from wearing and tearing and cooling tube 383, by cylindrical filter screen 61 chip in lubricant oil effectively filtered and collect, further the chip of irony is piled up inside filter screen 61 prevent blocking filter screen 61 by arranging magnetic block 62 in filter screen 61 inside, and by removable filter device 6 structure, conveniently the chip of cylindrical filter screen 61 inside is carried out regular cleaning and removed, prevent the chip adverse current produced in crankshaft cavity 32 to enter in cooling tube 383 by arranging one-way valve 7 and cooling tube 383 is blocked, ensure that lubricant oil unimpeded flowing between crankshaft cavity 32 and cooling tube 383, thus ensure that heat dispersion and the working life of product.
Described circulating filtration module includes filters oil circuit 81 and conveying oil circuit 82, described filtration oil circuit 81 includes two loine pressure filters 814, lay respectively at the oil outlet of main fuel tank 818 and the filler opening of fuel reserve tank 813, the first described driven pump 811 and the second driven pump 821 all adopt gear pump, the power of described gear pump can adopt 0.75KW, discharge capacity is 10ml/r, concrete model also specifically can be selected according to actual conditions, described pipeline is also provided with relief valve 815 as safety, and one-way valve 816 is for preventing the backflow of fluid, described pipeline cooler 817 adopts the GL model that dawn, hydraulic pressure was produced common on the market, level meter 812 can be provided with accordingly on fuel reserve tank 813, setting position for fuel reserve tank 813 does not specifically limit, correct position can be placed according to the concrete arrangement situation of emulsion pump, hydraulic pipe line setting for fuel reserve tank 813 and main fuel tank 818 is also Hydraulic Field technician known technology, also repeat no more herein, all can arrange according to actual conditions, it is not single alternative.
Described air vent is provided with many places on admission chamber lid 341.Can to prevent because admission chamber lid 341 air of causing of injustice of internal surface when casting resides in admission chamber 34 and cannot by situation about draining owing to being provided with many places vent hole 3411 on admission chamber lid 341, in use liquid is filled with admission chamber 34 finally by arranging cork, until vent hole 3411 one by one overflowing liquid time cork can effectively be prevented from beyond the Great Wall leaving air in admission chamber 34 successively.
The described pump housing 3 is provided with plunger cavity lid 39, and described plunger cavity lid 39 is provided with ventilating hole 381.Because bent axle 31 can make the spatial volume in plunger cavity 35 change when driving plunger 33 to do piston movement, the existing pump housing 3 plunger cavity lid 39 lacks ventilating hole 381, plunger cavity 35 relatively airtight when spatial volume in plunger cavity 35 changes easily causes obstruction to the piston movement of plunger 33, thus add the burden of bent axle 31 running, exacerbate the generation of heat on bent axle 31, therefore the burden of bent axle 31 running is decreased by arranging ventilating hole 381, decrease the generation of heat on bent axle 31, delay the aging of bent axle 31 and plunger 33, improve the working life of product.
Described cylinder sleeve component 37 comprises cylinder sleeve 371, guide sleeve 372, pad 373 and plunger sealing washer 374, be provided with through hole 375 along guide sleeve 372 radial direction in the middle part of described guide sleeve 372, described cylinder sleeve 371 is provided with for the oil dripping hole 376 adding lubricant oil between plunger 33 and cylinder sleeve 371 in the position corresponding with through hole 375.Due to sealing relatively good between plunger 33 and cylinder sleeve 371, make the lubricant oil of plunger 33 one end be difficult to carry out good lubrication to the surface of contact between plunger 33 and cylinder sleeve 371, plunger 33 and cylinder sleeve when relative movement owing to lacking that lubricating to generate heat in a large number and add the negative gear that bent axle 31 operates simultaneously.Oil dripping hole 376 is set and middlely can adds lubricant oil in oil dripping hole 376 daily, lubricant oil is by arriving plunger 33 surface after oil dripping hole 376 and through hole 375, when plunger 33 carries out piston movement, lubricant oil is able to play lubrication effect between plunger 33 and cylinder sleeve 371 between surface of contact, prevents excessive wear between plunger 33 and cylinder sleeve 371 from improve the working life of water pump.
Described oil dripping hole 376 is greater than the level height of oil dripping hole 376 at cylinder sleeve 371 inner opposite end opening in the level height of cylinder sleeve 371 lateral ends opening.Make lubricant oil can be poured into the effect in through hole 375, plunger 33 being produced to oil sealing, only need determine to have in through hole 375 lubrication that lubricant oil can ensure between plunger 33 and cylinder sleeve 371 in the daily lubricated maintenance of plunger 33, simplify the lubricated maintenance process to plunger 33 and cylinder sleeve 371.
Described through hole 375 is greater than through hole 375 average diameter at the side end face diameter near plunger 33, and described through hole 375 is greater than through hole 375 average diameter at the side end face diameter near cylinder sleeve 371.Increase the area of contact of lubricant oil and plunger 33, improve lubrication effect, and to reduce when cylinder sleeve 371 makes for the required precision of offering oil dripping hole 376, be convenient to process oil dripping hole 376 on cylinder sleeve 371, make oil dripping hole 376 connect convenient with through hole 375.

Claims (7)

1. a water pump for mining, comprise base, motor, the pump housing, shaft joint, gear reduction box and main fuel tank, the described pump housing comprises bent axle, crankshaft cavity, plunger, admission chamber, plunger cavity, pump head component and cylinder sleeve component, described motor and the pump housing are all fixed on base, described motor output end connects gear reduction box input shaft by shaft joint, described gear reduction box output shaft connects described bent axle, it is characterized in that: the described pump housing is provided with pressure lubrication device, described pressure lubrication device comprises gear pump, sebific duct and cooling tube, described gear pump side is communicated with crankshaft cavity opposite side and is connected with cooling tube by sebific duct, the other end that described cooling tube is communicated with gear pump is connected with crankshaft cavity by sebific duct, described cooling tube is arranged in admission chamber, the described pump housing is provided with admission chamber lid, the described admission chamber portion of covering is provided with vent hole, described admission chamber covers and is provided with cork at air vent corresponding position, described base is provided with fuel reserve tank, the circulating filtration module for circulate main fuel tank and fuel reserve tank fluid is provided with between described fuel reserve tank and main fuel tank, described circulating filtration module includes filters oil circuit and conveying oil circuit, described filtration oil circuit includes the first driven pump fluid of main fuel tank being delivered to fuel reserve tank, safety valve, one-way valve and some loine pressure filters, described conveying oil circuit includes one-way valve and the second driven pump for the fluid in fuel reserve tank being delivered to main fuel tank.
2. water pump for mining according to claim 1, is characterized in that: described filtration oil circuit is also provided with pipeline cooler.
3. water pump for mining according to claim 1, it is characterized in that: the position that described crankshaft cavity is communicated with gear pump is provided with filter, the position that crankshaft cavity is communicated with cooling tube is provided with one-way valve, cylindrical filter screen is provided with in described filter, crankshaft cavity is communicated with inside described filter screen, outside is communicated with gear pump, and be provided with magnetic block inside described filter screen, described filter and crankshaft cavity removably connect.
4. water pump for mining according to claim 3, is characterized in that: described air vent covers at admission chamber and is provided with many places.
5. water pump for mining according to claim 1, is characterized in that: the described pump housing is provided with plunger cavity lid, and described plunger cavity covers and is provided with ventilating hole.
6. water pump for mining according to claim 1, it is characterized in that: described cylinder sleeve component comprises cylinder sleeve, guide sleeve, pad and plunger sealing washer, be provided with through hole along guide sleeve radial direction in the middle part of described guide sleeve, described cylinder sleeve is provided with for the oil dripping hole adding lubricant oil between plunger and cylinder sleeve in the position corresponding with through hole.
7. water pump for mining according to claim 6, is characterized in that: described oil dripping hole is greater than the level height of oil dripping hole at cylinder sleeve inner opposite end opening in the level height of cylinder sleeve lateral ends opening.
CN201420560331.6U 2014-09-26 2014-09-26 Water pump for mining Expired - Fee Related CN204152741U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420560331.6U CN204152741U (en) 2014-09-26 2014-09-26 Water pump for mining

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420560331.6U CN204152741U (en) 2014-09-26 2014-09-26 Water pump for mining

Publications (1)

Publication Number Publication Date
CN204152741U true CN204152741U (en) 2015-02-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420560331.6U Expired - Fee Related CN204152741U (en) 2014-09-26 2014-09-26 Water pump for mining

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104005949A (en) * 2014-01-16 2014-08-27 浙江众博矿业机械有限公司 Mine water pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104005949A (en) * 2014-01-16 2014-08-27 浙江众博矿业机械有限公司 Mine water pump

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150211

Termination date: 20160926