CN206299604U - A kind of pump mechanical seal water chamber and water pump - Google Patents
A kind of pump mechanical seal water chamber and water pump Download PDFInfo
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- CN206299604U CN206299604U CN201621135448.5U CN201621135448U CN206299604U CN 206299604 U CN206299604 U CN 206299604U CN 201621135448 U CN201621135448 U CN 201621135448U CN 206299604 U CN206299604 U CN 206299604U
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- pump
- chamber
- machine sealing
- mechanical seal
- sealing chamber
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Abstract
The utility model discloses a kind of pump mechanical seal water chamber, pump cover including water pump, it is arranged on the central through hole on the pump cover, the central through hole is provided with the machine sealing chamber being connected with the central through hole towards the side of impeller, the tapered cavity body structure of machine sealing chamber, axially there is machine sealing chamber first end and machine sealing chamber second end relative with the machine sealing chamber first end near impeller direction along it, the diameter with diameter greater than the end of the machine sealing chamber second of the machine sealing chamber first end, the end of the machine sealing chamber second is sealed by mechanically-sealing apparatus.Simultaneously the invention also discloses the water pump using above-mentioned pump mechanical seal water chamber.It can provide bigger space to facilitate maintenance and installation operation on the premise of mechanical seal sealing is ensured, and extract directly can carry out cooling to mechanical seal and not need outer heating/cooling device in water pump operation, and sealing cavity space is bigger, particulate matter stop is not easy to, reduces abrasion.
Description
Technical field
The utility model is related to water pump field, more particularly to a kind of cavity body structure in pump mechanical seal water chamber.
Background technology
In the production of chemical industry and oil play, raw material, semi-finished product and finished product are mostly liquid, and by raw material be made half into
Product and finished product, it is necessary to by complicated technical process, pump serves conveying liquid during these, for chemical reaction provides pressure
The effect of power, flow.Further, it is also possible to adjust temperature with pump.In agricultural production, the purposes of water pump is main irrigation and drainage machine
Tool.China rural area is with a vast territory, and annual rural area is required for substantial amounts of pump.Data shows that agricultural pump accounts for its total output according to statistics
More than half.In mining industry and metallurgical industry, water pump is also to use most equipment.As the draining under mine, ore dressing, smelting,
, it is necessary to be supplied water with pump in the operation of rolling.In power department, steam power plant need substantial amounts of boiler feed pump, condensate pump,
Water circulating pump, lime-ash liquid pump etc..In shipbuilding industry, the various pumps that are used on every ocean liner mostly all hundred with
On, its type is also miscellaneous.In national defense construction, the regulation of aircraft flap, tail vane and undercarriage, warship and tank gun
The rotation of tower, sink-float of submarine etc. can all use pump.In terms of some national defence sophisticated technologies, such as atomic power station, nuclear reaction
Heap and die Raketenbasis, not only need pump, and have many special requirements to pump, such as conveying high temperature, high pressure and active
Liquid, the also requirement having is without any leakage etc..The plumbing in the purposes of other water pumps such as city, the use oil of internal combustion (steam) locomotive
In lubrication and cooling, textile industry in (water), lathe paper pulp, and food are conveyed in conveying bleaching liquid and dyestuff, paper industry
Transporting milk and carbohydrate etc. in product industry, have been required for substantial amounts of pump.In a word, either heavy industry or light industry, either
National defense construction or military equipment, either advanced science technology or daily life, are required for using pump everywhere, grow on trees
Pump is in operation.So the purposes of water pump is one of staple product in mechanical industry, it is development modern industry, agricultural, national defence, science
The machinery equipment that technology must be lacked, grasps working service knowledge and skills and has important practical significance.Water pump it is general by the pump housing,
The part such as pump shaft, impeller, machine seal apparatus and bearing body constitutes, and is widely used in distruting water transregionally, field irrigation, production supply and discharge
The fields such as water.But when conveying has the water containing silt such as the solid-liquid two-phase flow such as Huanghe water of abrasion, the blade of water pump vane, sealing
Serious wear at ring, so as to influence the service behaviour of water pump, or even causes impeller failure, and water pump is shut down, and is needed in production often more
Change, the extra work for increased user's shutdown, changing is even more influence production efficiency.Pump shaft through bearing body support, pump shaft front end with
Impeller is fixedly connected, and impeller is located in the pump housing, and bearing body is fixedly connected through pump cover with the pump housing, in order to ensure impeller in the running,
Liquid in the pump housing can not be leaked into bearing body, and machine sealing chamber is provided with generally between impeller and bearing body, and machine sealing chamber is usual
Pump cover center cavity is located at, pump cover front end is provided with the sealing hole being connected with impeller, and middle part is provided with the through hole being connected with positioning sleeve,
Rear portion is provided with machine sealing chamber, and pump cover periphery Circle-Array shows the fixing hole being connected with bearing body, through hole and the machine envelope at pump cover center
Positioning sleeve, mechanical seal and machine sealed cover, the sealed ring in pump cover front end and impeller seals are fixed with pump shaft in chamber successively
Connection, rear end is tightly connected through fastening bolt with pump cover.Its deficiency is：Because machine seal apparatus part is more, then cannot ensure each
The precision of mating surface, causing the sealing property of machine sealing chamber cavity reduces, and machine sealing chamber cavity is cylindrical remains when mounted
Remaining operating space is minimum, is often difficult operation, assembling inconvenience when causing part exchanging, and if contained in medium when in use
When having particulate matter, the friction of particulate matter and mechanical seal is easily caused, cause the damage of mechanical seal, have a strong impact on mechanical water pump
The sealing of sealing, the penetration by liquid machine seal apparatus that water pump extraction is likely to result in when more serious are leaked on pump shaft, influence pump
The life-span of axle and liquid corrosion is caused to bearing body, there are numerous influences for the maintenance work of whole water pump.
Utility model content
A purpose of the present utility model is：A kind of pump mechanical seal water chamber is provided, it can ensure mechanical seal sealing
On the premise of provide bigger space to facilitate maintenance and installation operation, and extract can be directly to machinery in water pump operation
Sealing carries out cooling and does not need outer heating/cooling device, and sealing cavity space is bigger, is not easy to particulate matter stop, reduces abrasion.
It is another object of the present invention to provide a kind of water pump, it can not need outside cooling device to mechanical seal
Cooled down, machine's sealing rate reduces, maintenance assembling is more convenient.
It is that, up to this purpose, the utility model uses following technical scheme：
On the one hand, there is provided a kind of pump mechanical seal water chamber, including water pump pump cover, be arranged on the central through hole on the pump cover,
The central through hole is provided with the machine sealing chamber being connected with the central through hole, the tapered chamber of machine sealing chamber towards the side of impeller
Body structure, axially there is machine sealing chamber first end and the machine relative with the machine sealing chamber first end near impeller direction to seal along it
The end of chamber second, the diameter with diameter greater than the end of the machine sealing chamber second of the machine sealing chamber first end, the end of the machine sealing chamber second leads to
Mechanically-sealing apparatus are crossed to be sealed.
Used as a kind of optimal technical scheme in described pump mechanical seal water chamber, the mechanically-sealing apparatus include rotating ring, stationary ring
And auxiliary sealing member, the machine sealing chamber first end is with the first positioning step for connecting the impeller, the machine sealing chamber
Second end has the second positioning step for connecting the stationary ring of the mechanically-sealing apparatus.
Used as a kind of optimal technical scheme in described pump mechanical seal water chamber, first positioning step and described second is positioned
It is attached by taper inner ring surface between step, use is provided between the taper inner ring surface and second positioning step
In the dilatation face for expanding machine sealing chamber inner space.
As a kind of optimal technical scheme in described pump mechanical seal water chamber, between first positioning step and the impeller
It is provided with wear ring.
Used as a kind of optimal technical scheme in described pump mechanical seal water chamber, the wear ring is mounted by means of bolts on institute
State on the first positioning step.
Used as a kind of optimal technical scheme in described pump mechanical seal water chamber, the stationary ring of the mechanically-sealing apparatus utilizes anti-rotation
Pin is fixedly mounted on second positioning step.
Used as a kind of optimal technical scheme in described pump mechanical seal water chamber, the stop pin is fixedly installed on described second to be determined
On the step of position, and the axis direction of the stop pin is identical with the axis direction of the machine sealing chamber.
As a kind of optimal technical scheme in described pump mechanical seal water chamber, diameter and the machine of the machine sealing chamber first end
The diameter ratio for sealing the end of chamber second is 2:1 to 5:1.
As a kind of optimal technical scheme in described pump mechanical seal water chamber, between the taper inner ring surface and the dilatation face
Connected by transition arc.
On the other hand, there is provided water pump described in a kind of water pump is provided with pump mechanical seal water chamber as described above.
The beneficial effects of the utility model are：It can provide bigger space on the premise of mechanical seal sealing is ensured
To facilitate maintenance and installation operation, and in water pump operation extract cooling directly can be carried out to mechanical seal need not be additional
Cooling device, and sealing cavity space is bigger, is not easy to particulate matter stop, reduces abrasion.
Brief description of the drawings
The utility model is described in further detail below according to drawings and Examples.
Fig. 1 is water pump structure schematic diagram described in embodiment.
Fig. 2 is wear-resisting pump shaft structure schematic diagram described in embodiment.
Fig. 3 is enlarged drawing at A in Fig. 2.
Fig. 4 is enlarged drawing at B in Fig. 1.
Fig. 5 is enlarged drawing at C in Fig. 1.
Fig. 6 is enlarged drawing at D in Fig. 1.
In figure：
1st, spiral case；2nd, pump cover；3rd, bearing block；4th, bolt；5th, jackscrew screw；6th, impeller；7th, machine sealing chamber；8th, mechanical seal dress
Put；9th, wear-resisting pump shaft；10th, the first axle body；11st, the second axle body；12nd, three-axis body；13rd, anti-wear sleeve；14th, the first axle sleeve；15、
Second axle sleeve.
Specific embodiment
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by specific embodiment.
As shown in figs. 1 to 6, in the present embodiment, a kind of water pump described in the utility model, including the spiral case being sequentially connected
1st, pump cover 2 and bearing block 3, the end face being connected with the pump cover 2 on the spiral case 1 are provided with the first positioning step, the pump
The end face being connected with the spiral case 1 on lid 2 is provided with the second positioning step, first positioning step and second positioning table
Rank is engaged for positioning the spiral case 1 and the pump cover 2, and the end face being connected with the bearing block 3 on the pump cover 2 is provided with
3rd step, the end face being connected with the pump cover 2 on the bearing block 3 is provided with the 4th step, the 3rd step with it is described
4th step is engaged for positioning the pump cover 2 and the bearing block 3, and the spiral case 1 is connected with the pump cover 2 by bolt 4
Connect, the pump cover 2 is connected with the bearing block 3 by bolt 4, be provided with the pump cover 2 by the spiral case 1 push up to
Away from the jackscrew screw 5 in the direction of the pump cover 2, it is provided with pushing up the pump cover 2 to away from institute on the bearing block 3
The jackscrew screw 5 in the direction of bearing block 3 is stated, the bearing block 3 is provided with shaft-cup away from one end of the pump cover 2, for driving
The wear-resisting pump shaft 9 of impeller 6 sequentially passes through the shaft-cup, the bearing block 3, the pump cover 2 and is arranged on the spiral case 1 and institute
The impeller 6 stated between pump cover 2 is fixedly connected；
Be provided with central through hole on the pump cover 2, the central through hole towards the side of the impeller 6 be provided with it is described
The connected machine sealing chamber 7 of central through hole, the tapered cavity body structure of the machine sealing chamber 7 axially has the machine near the direction of impeller 6 along it
Envelope chamber first end and machine sealing chamber second end relative with the machine sealing chamber first end, the machine sealing chamber first end with diameter greater than
The diameter at the end of the machine sealing chamber second, the end of the machine sealing chamber second is sealed by mechanically-sealing apparatus 8；
The wear-resisting pump shaft 9, including pump shaft body, the pump shaft body have the first axle body being connected with water pump vane 6
10 and the second axle body 11 and the three-axis body 12 that is connected with motor of the connection of mechanically-sealing apparatus 8, the second axle body
Being provided between 11 and the mechanically-sealing apparatus 8 prevents 8 pairs of the second axle bodies 11 of mechanically-sealing apparatus from causing the resistance to of abrasion
Mill axle sleeve 13；
The first axle body 10 is structure as a whole with the second axle body 11, its away from the first axle body 10 end
Axis body first connecting portion is provided with, the three-axis body 12 is provided with axis body second and connects near the end of the second axle body 11
Portion, the first axle body 10 and the second axle body 11 and the three-axis body 12 by the axis body first connecting portion and
The axis body second connecting portion is detachably connected；
The anti-wear sleeve 13 is included near the first axle sleeve 14 of the first axle body 10 and near the second axle body
11 the second axle sleeve 15, first axle sleeve 14 is connected with second axle sleeve 15 by thread mechanism.
The first axle body 10 is structure as a whole with the second axle body 11, its away from the first axle body 10 end
Axis body first connecting portion is provided with, the three-axis body 12 is provided with axis body second and connects near the end of the second axle body 11
Portion, the first axle body 10 and the second axle body 11 and the three-axis body 12 by the axis body first connecting portion and
The axis body second connecting portion is detachably connected；
The anti-wear sleeve 13 is included near the first axle sleeve 14 of the first axle body 10 and near the second axle body
11 the second axle sleeve 15, first axle sleeve 14 is connected with second axle sleeve 15 by thread mechanism.
Specifically, the diameter with diameter greater than the first axle body 10 of the second axle body 11 described in the present embodiment is with both
The position being connected forms the first positioning table terrace, and first axle sleeve 14 includes the body of the first axle sleeve 14 and the first axle sleeve 14
Limiting section, forms the first confined planes, first limit between the body of the first axle sleeve 14 and the limiting section of the first axle sleeve 14
Plane is abutted with the first positioning table terrace；
The axis body first connecting portion forms the second positioning table terrace with the second axle body 11 to the position being connected, described
Second axle sleeve 15 includes the body of the second axle sleeve 15 and the limiting section of the second axle sleeve 15, the body of the second axle sleeve 15 and described second
The second confined planes are formed between the limiting section of axle sleeve 15, second confined planes are abutted with the second positioning table terrace.
It is attached by shaft coupling between the axis body first connecting portion and the axis body second connecting portion.
The axis body first connecting portion and be that can also use it between axis body second connecting portion in other embodiments
He is attached connected mode.
As a kind of perferred technical scheme, also there is the first support being connected with bearing respectively on the three-axis body 12
Portion and the second supporting part, first supporting part and the second supporting part diameter are identical.The body of second axle sleeve 15
External diameter of the internal diameter more than the body of the first axle sleeve 14.
It is more preferred, its axis direction is provided with some grooves on the body of the first axle sleeve 14, so that described the
The body of one axle sleeve 14 can occur elastic deformation when being threadedly coupled with the body of the second axle sleeve 15.
Specifically, in the present embodiment, the pump shaft body is processed using C45 steel or 20Cr13 steel.The axle sleeve
Processed using No. 316 stainless steels.
The material of the pump shaft body and the axle sleeve is not limited to above-mentioned material, the product institute in any this area
Usual material can be applied to this programme.
The fixed form of impeller 6 is in the present embodiment：The first axle body 10 sets away from the end of the second axle body 11
One section of screw thread is equipped with, and impeller 6 is fixedly connected by the nut being engaged with the screw thread.
Pump cover 2 described in the present embodiment, including the central through hole on the pump cover 2 is arranged on, the central through hole court
The machine sealing chamber 7 being connected with the central through hole, the tapered cavity body structure of the machine sealing chamber 7, along it are provided with to the side of impeller 6
Axially there is machine sealing chamber first end and machine sealing chamber second end relative with the machine sealing chamber first end near the direction of impeller 6,
The diameter with diameter greater than the end of the machine sealing chamber second of the machine sealing chamber first end, the end of the machine sealing chamber second passes through mechanical seal
Device 8 is sealed.
Specifically, the mechanically-sealing apparatus 8 include rotating ring, stationary ring and auxiliary sealing member, the machine sealing chamber first end
With the first positioning step for connecting the impeller 6, the end of the machine sealing chamber second has for connecting the mechanical seal
Second positioning step of the stationary ring of device 8.
Further, connected by taper inner ring surface between first positioning step and second positioning step
Connect, the dilatation for expanding the inner space of machine sealing chamber 7 is provided between the taper inner ring surface and second positioning step
Face.
As a kind of perferred technical scheme, it is provided with wear ring between first positioning step and the impeller 6.Institute
Wear ring is stated to be fixedly mounted on first positioning step by bolt 4.The stationary ring of the mechanically-sealing apparatus 8 utilizes anti-rotation
Pin is fixedly mounted on second positioning step.The stop pin is fixedly installed on second positioning step, and institute
The axis direction for stating stop pin is identical with the axis direction of the machine sealing chamber 7.
In this programme, the diameter of the machine sealing chamber first end is 2 with the diameter ratio at the end of the machine sealing chamber second:1 to 5:
1。
Specifically the diameter of machine sealing chamber first end described in the present embodiment is with the diameter ratio at the end of the machine sealing chamber second
3:1。
Further, connected by transition arc between the taper inner ring surface and the dilatation face.
The end face being connected with the pump cover 2 on spiral case 1 described in the present embodiment is provided with the first positioning step, the pump cover
The end face being connected with the spiral case 1 on 2 is provided with the second positioning step, first positioning step and second positioning step
It is engaged for positioning the spiral case 1 and the pump cover 2, the end face being connected with the bearing block 3 on the pump cover 2 is provided with
Three steps, the end face being connected with the pump cover 2 on the bearing block 3 is provided with the 4th step, the 3rd step and described
Four steps are engaged for positioning the pump cover 2 and the bearing block 3, and the spiral case 1 is connected with the pump cover 2 by bolt 4,
The pump cover 2 is connected with the bearing block 3 by bolt 4, is provided with pushing up the spiral case 1 to remote on the pump cover 2
From the jackscrew screw 5 in the direction of the pump cover 2, it is provided with pushing up the pump cover 2 to away from described on the bearing block 3
The jackscrew screw 5 in the direction of bearing block 3.
Specifically, the spiral case 1 is evenly arranged with 12 screwed holes near edge placement, the edge of the pump cover 2 is provided with
12 through holes corresponding with the screw thread hole site on the spiral case 1, the pump cover 2 and the spiral case 1 lead to by through described
The hole and screw rod inserted in the screwed hole is attached, the screw rod passes through nut check away from the end of the spiral case 1.Institute
State bearing block 3 and edge placement be provided with 8 through holes, be provided with the one side that the pump cover 2 is connected with the bearing block 3 with
Corresponding 8 screwed holes of the lead to the hole site, the bearing block 3 is by through the through hole and inserting the spiral shell in the screwed hole
Bar is attached, and the screw rod passes through nut check away from the end of the spiral case 1.Two band spiral shells are provided with the pump cover 2
Line through hole, two threaded through hole are logical for what is be connected with the spiral case 1 and the bearing block 3 with the pump cover 2
Hole is misaligned, and threaded through hole described in two is set relative to the axisymmetrical of the pump cover 2, described two threaded through hole pair
The position on the spiral case 1 answered is flat end face, and two threaded through hole, two bands are provided with the bearing block 3
Tapped through hole be used for, and two described in threaded through hole phase misaligned with the through hole that the pump cover 2 is connected on the bearing block 3
Axisymmetrical for the bearing block 3 is set, and the position on the corresponding pump cover 2 of described two threaded through hole is smooth
End face, the jackscrew screw 5 has four, and in four threaded through hole.
Further, the end face that the spiral case 1 is connected with the pump cover 2 is provided with rubber gasket.The spiral case 1
The impeller installation step for installing impeller 6 is internally provided with, is provided between the impeller installation step and the impeller 6 resistance to
Bull ring.The through hole and the screwed hole on the pump cover 2 are located on same circumference, the bearing block 3 and the pump cover 2
On the corresponding position of through hole be provided with slot to make way.The end face that the pump cover 2 is connected with the bearing block 3 is provided with rubber
Sealing gasket.The bearing block 3 is provided with shaft-cup away from one end of the pump cover 2, for drive impeller 6 wear-resisting pump shaft 9 successively
It is solid through the shaft-cup, the bearing block 3, the pump cover 2 and the impeller 6 being arranged on the spiral case 1 and the pump cover 2
Fixed connection.
In description herein, it is to be understood that term " first ", " second ", " the 3rd ", " the 4th " are only used for retouching
State and be distinguish between, without particular meaning.
It is to be understood that, above-mentioned specific embodiment is only preferred embodiment of the present utility model and institute's application technology
Principle, in technical scope disclosed in the utility model, what any one skilled in the art was readily apparent that
Change or replacement, should all cover in protection domain of the present utility model.
The utility model is illustrated above by specific embodiment, but the utility model is not limited to these tools
The embodiment of body.It will be understood by those skilled in the art that various modifications, equivalent, change can also be made to the utility model
Etc..But, these conversion, all should be within protection domain of the present utility model without departing from spirit of the present utility model.
In addition, some terms that present specification and claims are used not are limitation, it is only for be easy to description.This
Outward, described in above many places " one embodiment ", " another embodiment " etc. represents different embodiments, naturally it is also possible to by it
It is all or part of to combine in one embodiment.
Claims (10)
1. a kind of pump mechanical seal water chamber, it is characterised in that the pump cover including water pump, is arranged on the central through hole on the pump cover, institute
State central through hole and the machine sealing chamber being connected with the central through hole, the tapered cavity of machine sealing chamber are provided with towards the side of impeller
Structure, axially has the machine sealing chamber first end and the machine sealing chamber relative with the machine sealing chamber first end near impeller direction along it
Second end, the diameter with diameter greater than the end of the machine sealing chamber second of the machine sealing chamber first end, the end of the machine sealing chamber second passes through
Mechanically-sealing apparatus are sealed.
2. pump mechanical seal water chamber according to claim 1, it is characterised in that the mechanically-sealing apparatus include rotating ring, stationary ring
And auxiliary sealing member, the machine sealing chamber first end is with the first positioning step for connecting the impeller, the machine sealing chamber
Second end has the second positioning step for connecting the stationary ring of the mechanically-sealing apparatus.
3. pump mechanical seal water chamber according to claim 2, it is characterised in that first positioning step and the described second positioning
It is attached by taper inner ring surface between step, use is provided between the taper inner ring surface and second positioning step
In the dilatation face for expanding machine sealing chamber inner space.
4. pump mechanical seal water chamber according to claim 3, it is characterised in that between first positioning step and the impeller
It is provided with wear ring.
5. pump mechanical seal water chamber according to claim 4, it is characterised in that the wear ring is mounted by means of bolts on institute
State on the first positioning step.
6. pump mechanical seal water chamber according to claim 5, it is characterised in that the stationary ring of the mechanically-sealing apparatus utilizes anti-rotation
Pin is fixedly mounted on second positioning step.
7. pump mechanical seal water chamber according to claim 6, it is characterised in that the stop pin is fixedly installed on described second to be determined
On the step of position, and the axis direction of the stop pin is identical with the axis direction of the machine sealing chamber.
8. pump mechanical seal water chamber according to any one of claim 1 to 6, it is characterised in that the machine sealing chamber first end
Diameter is 2 with the diameter ratio at the end of the machine sealing chamber second:1 to 5:1.
9. pump mechanical seal water chamber according to claim 3, it is characterised in that between the taper inner ring surface and the dilatation face
Connected by transition arc.
10. a kind of water pump, it is characterised in that the water pump is provided with pump mechanical seal water as claimed in any one of claims 1-9 wherein
Chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621135448.5U CN206299604U (en) | 2016-10-18 | 2016-10-18 | A kind of pump mechanical seal water chamber and water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621135448.5U CN206299604U (en) | 2016-10-18 | 2016-10-18 | A kind of pump mechanical seal water chamber and water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206299604U true CN206299604U (en) | 2017-07-04 |
Family
ID=59203179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621135448.5U Active CN206299604U (en) | 2016-10-18 | 2016-10-18 | A kind of pump mechanical seal water chamber and water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206299604U (en) |
-
2016
- 2016-10-18 CN CN201621135448.5U patent/CN206299604U/en active Active
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| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 510000 No. 456, No. 456, No. two, middle Xingang Road, Haizhuqu District, Guangdong, Guangzhou, 1206 Patentee after: Guangzhou nine Mo Electromechanical Equipment Co., Ltd. Address before: 510000 No. 456, No. 456, No. two, middle Xingang Road, Haizhuqu District, Guangdong, Zhuhai, 1206 Patentee before: Guangzhou nine Mo Electromechanical Equipment Co., Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 510000 Guangdong Guangzhou Haizhuqu District Xingang Road No. 456, No. 456 two 1206 1206 two Patentee after: Qingmuchuan environmental protection technology (Guangzhou) Co., Ltd Address before: 510000, No. two, middle 456, No. 456, Xingang Road, Haizhuqu District, Guangdong, Guangzhou, 1206 Patentee before: Guangzhou nine Mo Electromechanical Equipment Co., Ltd. |
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| CP03 | Change of name, title or address |