CN207554358U - A kind of hot water circulating pump - Google Patents
A kind of hot water circulating pump Download PDFInfo
- Publication number
- CN207554358U CN207554358U CN201721638228.9U CN201721638228U CN207554358U CN 207554358 U CN207554358 U CN 207554358U CN 201721638228 U CN201721638228 U CN 201721638228U CN 207554358 U CN207554358 U CN 207554358U
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- bearing body
- bearing
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 124
- 239000000498 cooling water Substances 0.000 claims abstract description 54
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 239000002184 metal Substances 0.000 claims description 12
- 210000004907 gland Anatomy 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000037081 physical activity Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 23
- 238000001816 cooling Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000002045 lasting effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of hot water circulating pumps, belong to water pump field, including the pump housing and bearing body；The pump housing is connect with bearing body；Bearing body activity is equipped with shaft, and shaft both ends extend along bearing body axial direction and are pierced by bearing body, and one end is located in the pump housing and is coaxially connected with impeller, and hot water circulating pump further includes pump cover；Pump cover one end is connect with the pump housing in a manner of removable, and the other end is connect with bearing body in a manner of removable；The organic sealed cover of dismountable sealed set between pump cover and bearing body, machine sealed cover middle part offer the axis hole worn for shaft；Machine sealed cover forms cooling water cavity close to the side of pump cover and pump cover, and cooling water cavity is circumferentially positioned at the periphery of shaft；Side of the machine sealed cover far from pump cover forms machine sealing chamber；The water inlet and water outlet connected with the both ends that cooling water cavity is located remotely from each other is equipped with outside pump cover.The stability of water pump during the work time can guarantee by the utility model, avoid the situation that shaft is stuck.
Description
Technical field
The utility model is related to a kind of water pump more particularly to a kind of hot water circulating pumps.
Background technology
At present, it may require that more than metallurgy, power station, chemical industry, waste heat etc. and in the fields such as peculiar to vessel and be used for system using water pump
Hot water circuit in middle pipeline or loop.
Since shaft one end in the pump housing and external motor are coaxially connected, the other end is equipped with impeller for absorbing water, and water pump
It is influenced with the passage of working time and by external high temperature water flow temperature, shaft can be easily in lasting rotary course
Or temperature is transmitted in shaft by impeller by high temperature water flow, shaft expanded by heating is made to cause there is a situation where stuck holding
Staff have to shut down cooling or feed pump continuous external Physical temperature-lowering, easily block in hot water working condition lower rotary shaft
The structure extremely held tightly not only significantly reduces working efficiency, also reduces the service life of water pump, stuck holding will every time for shaft
To shaft irreversible damage can be brought, eventually lead to and need replacing water pump and increase cost.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of hot water circulating pump, in bearing
Body close to the side of impeller setting twisted rotary shaft cooling water cavity, make hot water circulating pump during the work time shaft obtain it is lasting
Radiating and cooling ensures its job stability.
The purpose of this utility model adopts the following technical scheme that realization：
A kind of hot water circulating pump, including the pump housing and bearing body；The pump housing is connect with the bearing body；In the bearing body
Activity is equipped with shaft, and the shaft both ends extend along the bearing body axial direction and are pierced by the bearing body, and one end position
In being coaxially connected with impeller in the pump housing, the hot water circulating pump further includes pump cover；Described pump cover one end and the pump housing with
Removable mode connects, and the other end is connect with the bearing body in a manner of removable；The pump cover and the bearing body it
Between dismountable organic sealed cover of sealed set, offer the axis hole worn for the shaft in the middle part of the machine sealed cover；It is described
Machine sealed cover forms cooling water cavity close to the side of the pump cover and the pump cover, and the cooling water cavity is circumferentially positioned at described turn
The periphery of axis；Side of the machine sealed cover far from the pump cover forms machine sealing chamber；It is equipped with and the cooling outside the pump cover
The water inlet and water outlet of both ends connection that water cavity is located remotely from each other.
Further, the water inlet is equipped with water flow indicator.
Further, it is extended with and described turn towards the machine sealed cover direction by the pump cover inner wall in the cooling water cavity
The ring wall of axis coaxial arrangement, for separating the shaft and the cooling water cavity；Between being formed between the ring wall and the shaft
Gap；The one end of the ring wall far from the pump cover is tightly connected with the machine sealed cover.
Further, the metal bellows mechanical seal part being coaxially disposed with the shaft is equipped in the gap；It is described
The shaft is fixed in metal bellows mechanical seal part one end, and the other end is fixed with the gland seal.
Further, the retaining wall for obstructing flow is extended in the cooling water cavity along the shaft axial direction；Institute
It states retaining wall upper end to connect with the bearing body inner wall, lower end is connect with the ring wall, so that the axial direction of the cooling water cavity
" C " character form structure annular in shape.
Further, the cooling water cavity of the retaining wall both sides is respectively formed water inlet end and water outlet；The water inlet end
It is connect with the water inlet, the water outlet is connect with the water outlet.
Further, it is additionally provided with oil pocket in the bearing body；The oil pocket is located at the machine sealing chamber far from the cooling water
The side of chamber；The oil pocket is equipped with front bearing retainer close to the side of the machine sealing chamber, after the side far from the machine sealing chamber is equipped with
Bearing cap；The shaft both ends are pierced by the front bearing retainer and the rear bearing cover respectively；The shaft is located in the oil pocket
Both ends be respectively equipped with bearing.
Further, the shaft is also arranged with retaining ring；The retaining ring is located at the machine sealed cover and the front axle
It holds between lid.
Further, the bearing includes cylinder roller bearing and two angular contact ball bearings；The cylinder roller bearing is set
It puts in the shaft close to one end of the front bearing retainer；Two angular contact ball bearings are disposed side by side on the shaft close to institute
State one end of rear bearing cover；The contact angle of two angular contact ball bearings is set outwardly relatively.
Further, the bearing body is equipped with the oil ga(u)ge hole connected with the oil pocket；The oil ga(u)ge hole is provided with oil ga(u)ge.
Compared with prior art, the beneficial effects of the utility model are：
Close to the side of impeller setting cooling water cavity in bearing body, and cooling water cavity twisted rotary shaft is set, and follows hot water
Ring pumps during the work time, and cold water is continually fed into cooling water cavity, and cold water enters from water inlet and discharged from water outlet, makes shaft
Working end obtain lasting heat dissipation, and play heat-insulated effect, the high temperature water flow temperature of cooling water cavity side can be cooled
Water cavity is completely cut off, and temperature is avoided to pass into machine sealing chamber, shaft expanded by heating is prevented, in the case where hot water circulating pump works long hours
The situation of stuck holding will not occur, stability is guaranteed, and improves the service life of the pump housing, reduces replacement water
The risk of pump, so as to reduce cost.
Description of the drawings
Fig. 1 is the utility model hot water circulating pump schematic cross-sectional view；
Fig. 2 is the A of Fig. 1 to sectional view.
In figure：10th, the pump housing；20th, bearing body；30th, pump cover；40th, shaft；50th, impeller；21st, cooling water cavity；211st, it intakes
Mouthful；212nd, water outlet；213rd, retaining wall；214th, water inlet end；215th, water outlet；22nd, ring wall；221st, gap；222nd, metal bellows
Mechanical sealing member；23rd, machine sealing chamber；31st, machine sealed cover；311st, axis hole；32nd, oil pocket；321st, front bearing retainer；322nd, rear bearing cover；
323rd, cylinder roller bearing；324th, angular contact ball bearing；325th, oil ga(u)ge hole；41st, retaining ring；100th, water flow indicator.
Specific embodiment
In the following, with reference to attached drawing and specific embodiment, the utility model is described further, it should be noted that
Under the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new
Embodiment.
As shown in Fig. 1~2, in order to make water pump in use or working media is in the case of high temperature water flow, shaft
40 will not occur the situation of locking, and the utility model provides a kind of hot water circulating pump, including the pump housing 10 and bearing body 20；The pump housing
10 connect with bearing body 20；Activity is equipped with shaft 40 in bearing body 20, and 40 both ends of shaft extend along 20 axial direction of bearing body
And be pierced by bearing body 20, and one end is located in the pump housing 10 and is coaxially connected with impeller 50, the other end in the operating condition with outside
The output shaft of portion's motor is coaxially connected with for the transmission energy of impeller 50.
Hot water circulating pump further includes pump cover 30；30 one end of pump cover is connect with the pump housing 10 in a manner of removable, the other end with
Bearing body 20 is connected in a manner of removable, and here, one end that pump cover 30 is connect with the pump housing 10 is equipped with cricoid tenon position platform, for
The positioning clamping of the pump housing 10, is bolted, and gasket or sealing ring can be used between the pump housing 10, pump cover 30 and bearing body 20
Make to form sealed connection relationship between it.By the way that hot water circulating pump is divided into 20 three parts of the pump housing 10, pump cover 30 and bearing body,
To facilitate the utility model more convenient in detachable maintaining, when the sealing element in shaft 40 or bearing body 20 needs replacing,
Dismounting pump cover 30 is only needed, without first to be needed after water pump is detached with motor again from the rear of water pump as traditional water pump
Internal part can be removed after cover is dismantled.
Dismountable organic sealed cover 31 of sealed set between pump cover 30 and bearing body 20,31 middle part of machine sealed cover offer
The axis hole 311 worn for shaft 40；Preferably, in order to improve the location accuracy of machine sealed cover 31 and stability, pump cover 30
Opposite with bearing body 20 is respectively equipped with the tenon position being clamped for machine sealed cover 31 on one side, after pump cover 30 is connect with bearing body 20,
Two tenon positions are spliced to form the thickness clamping platform consistent with 31 perimeter thicknesses of machine sealed cover, so that machine sealed cover 31 can be fixed steadily
In hot water circulating pump.Machine sealed cover 31 forms cooling water cavity 21,21 ring of cooling water cavity close to the side of pump cover 30 and pump cover 30
Around the periphery for being arranged on shaft 40, so that shaft 40 generated heat and passes over during the work time from impeller 50
The equal water cavity 21 that can be cooled of heat energy is absorbed, and completely cut off the heat that high temperature water flow is passed over from 30 side of pump cover；Machine seals
Side of the gland 31 far from pump cover 30 forms machine sealing chamber 23；30 outside of pump cover is equipped with the both ends being located remotely from each other with cooling water cavity 21 and connects
Logical water inlet 211 and water outlet 212, water inlet 211 is identical with 212 diameter of water outlet, and respectively less than cooling water cavity 21 is straight
Diameter.
During the utility model use, shaft 40 and the output shaft of external motor are coaxially connected, motor-driven rotatable shaft 40
It is rotated with impeller 50, in the process, water inlet 211 connects external water source and is passed through temperature less than the flow temperature in the pump housing 10
The cold water of degree, since water inlet 211 and water outlet 212 are located at the both ends that cooling water cavity 21 is located remotely from each other, and water inlet respectively
211 are respectively less than cooling water cavity 21 with 212 diameter of water outlet, and therefore, cold water can be full of cooling water cavity 21, and pass fully through cooling water
It is discharged again from water outlet 212 after the external temperature for passing into cooling water cavity 21 is fully absorbed after chamber 21.Further, since cooling
The state of cold water is full of in long-term in water cavity 21, therefore is also avoided that the temperature of high temperature water flow is passed to bearing body by pump cover 30
20 possibility provides stable heat dissipation and heat insulation for hot water circulating pump, ensures the job stability of hot water circulating pump,
So as to extend the service life of hot water circulating pump, the cost that repair is replaced is reduced.
In order to ensure to enter speed of the water velocity more than the discharge flow of water outlet 212 of cooling water cavity 21 from water inlet 211
Degree, water inlet 211 are equipped with water flow indicator 100, and flow is arranged to conform to by the numerical value according to water flow indicator 100
The flow velocity of requirement is stated, to ensure unanimously to remain full of the state of cold water in cooling water cavity 21.Here, in cooling water cavity 21
Chilled water flow velocity is generally 0.5~1m3/ hour.
In order to improve the sealing effect in hot water circulating pump, prevent the leakage of cooling water cavity 21 from influencing internal work, cooling water
The ring wall 22 being coaxially disposed with shaft 40 is extended with towards 31 direction of machine sealed cover by 30 inner wall of pump cover in chamber 21, for separating shaft
40 with cooling water cavity 21；Gap 221 is formed between ring wall 22 and shaft 40；The one end of ring wall 22 far from pump cover 30 and machine sealed cover
31 are tightly connected.In 40 course of work of shaft, shaft 40 can be transmitted to ring wall 22 in heat caused by lasting rotary course
And the cold water passed through in cooling water cavity 21 radiates, while the situation that shaft 40 is also avoided directly to soak, and improves shaft 40
Service life.
Further, the metal bellows mechanical seal part 222 being coaxially disposed with shaft 40 is equipped in gap 221；Metal
Shaft 40 is fixed in 222 one end of bellows mechanical seal, and the other end is fixed with the sealing of axis hole 311.Metal bellows mechanical is close
Sealing 222 is applied widely, can be adapted to building ring of the low temperature to high temperature, neutral medium to Korrosionsmedium and low speed to high speed
Border, union elastic element, auxiliary seal and torque transmission mechanism, further avoid shaft 40 because fever expansion leads to phase
To the situation of displacement, one end that impeller 50 is equipped in shaft 40 is arranged metal bellows mechanical seal part 222, expands shaft 40
Elastic element during displacement in metal bellows mechanical seal part 222 can coordinate the displacement therewith of shaft 40, in the process, metal
Bellows mechanical seal 222 can also keep with extraneous sealing state, after the cooling of shaft 40, elastic element also can be with turning
Axis 40 restores script position, and elimination is expanded with heat and contract with cold and influenced caused by countershaft 40.
Ability in order to further such that cold water from water inlet 211 enter cooling water cavity 21 after can fully by cooling water cavity 21 from
Water outlet 212 is discharged, and is extended with the retaining wall 213 for obstructing flow in cooling water cavity 21 along 40 axial direction of shaft；Retaining wall 213
Upper end is connect with 20 inner wall of bearing body, and lower end is connect with ring wall 22, so that " C " word that the axial direction of cooling water cavity 21 is annular in shape
Shape structure.The cooling water cavity 21 of 213 both sides of retaining wall is respectively formed water inlet end 214 and water outlet 215；Water inlet end 214 and water inlet
211 connections, water outlet 215 is connect with water outlet 212.
After cold water enters cooling water cavity 21 from one end of " C " font cooling water cavity 21, entire cricoid cooling water can be passed through
Chamber 21 is just discharged from the water outlet of the other end 212, and the heat dissipation of hot water circulating pump is imitated so as to further improve cooling water cavity 21
Fruit.
Specifically, oil pocket 32 is additionally provided in bearing body 20；Oil pocket 32 is located at side of the machine sealing chamber 23 far from cooling water cavity 21；
In order to facilitate the maintenance of oil pocket 32, oil pocket 32 is equipped with front bearing retainer 321 close to the side of machine sealing chamber 23, and one far from machine sealing chamber 23
Side is equipped with rear bearing cover 322, and here, front bearing retainer 321, rear bearing cover 322 form to accommodate lubricating oil with 32 side wall of oil pocket
Cavity, front bearing retainer 321 and rear bearing cover 322 are respectively used to seal the cavity to ooze out to avoid lubricating oil out of oil pocket 32.
Further, the hole being pierced by for shaft 40 that front bearing retainer 321, rear bearing cover 322 are equipped with, and holes be equipped with rotation it is close
Sealing；40 both ends of shaft are pierced by front bearing retainer 321 and rear bearing cover 322 from holes respectively；Shaft 40 is located at two in oil pocket 32
End is respectively equipped with bearing, and bearing and metal bellows mechanical seal part 222 are respectively formed the fulcrum for supporting shaft 40.
In order to avoid cooling water cavity 21 seeps water, flow is caused, which to penetrate into oil pocket 32 along shaft 40 or penetrate into bearing, reduces its use
Service life, shaft 40 are also arranged with retaining ring 41；Retaining ring 41 is between machine sealed cover 31 and front bearing retainer 321, if there is water
It oozes out from cooling water cavity 21, can then be got rid of whenever flow along shaft 40 by retaining ring 41 by retaining ring 41 to the side of machine sealing chamber 23
Wall avoids flow from continuing to flow toward 32 direction of oil pocket.
Bearing includes 323 and two angular contact ball bearing 324 of cylinder roller bearing；Cylinder roller bearing 323 is arranged on shaft
40 close to one end of front bearing retainer 321；Two angular contact ball bearings 324 are disposed side by side on shaft 40 close to the one of rear bearing cover 322
End；The contact angle of two angular contact ball bearings 324 is set outwardly relatively.
The inner ring of cylinder roller bearing 323 can provide the space for allowing roller along 40 axial displacement of shaft, and shaft 40 is avoided to set
The one end for having impeller 50 is thermally deformed in displacement process the phenomenon that locking occurs, and eliminates the shadow caused by countershaft 40 that expands with heat and contract with cold
It rings.
Bearing body 20 is equipped with the oil ga(u)ge hole 325 connected with oil pocket 32；Oil ga(u)ge hole 325 is provided with oil ga(u)ge.
The above embodiment is only the preferred embodiment of the utility model, it is impossible to be protected with this to limit the utility model
Range, the variation of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacing belongs to
In the utility model range claimed.
Claims (10)
1. a kind of hot water circulating pump, including the pump housing and bearing body；The pump housing is connect with the bearing body；It is living in the bearing body
Dynamic to be equipped with shaft, the shaft both ends extend along the bearing body axial direction and are pierced by the bearing body, and one end is located at
Impeller is coaxially connected in the pump housing, it is characterised in that：
The hot water circulating pump further includes pump cover；Described pump cover one end is connect with the pump housing in a manner of removable, the other end
It is connect in a manner of removable with the bearing body；The organic envelope of dismountable sealed set between the pump cover and the bearing body
Gland, the machine sealed cover middle part offer the axis hole worn for the shaft；The machine sealed cover is close to the one of the pump cover
Side forms cooling water cavity with the pump cover, and the cooling water cavity is circumferentially positioned at the periphery of the shaft；The machine sealed cover is remote
Side from the pump cover forms machine sealing chamber；It is equipped with what is connected with the both ends that the cooling water cavity is located remotely from each other outside the pump cover
Water inlet and water outlet.
2. hot water circulating pump as described in claim 1, it is characterised in that：The water inlet is equipped with water flow indicator.
3. hot water circulating pump as described in claim 1, it is characterised in that：By the pump cover inner wall towards institute in the cooling water cavity
It states machine sealed cover direction and is extended with the ring wall being coaxially disposed with the shaft, for separating the shaft and the cooling water cavity；
Gap is formed between the ring wall and the shaft；The one end of the ring wall far from the pump cover connects with machine sealed cover sealing
It connects.
4. hot water circulating pump as claimed in claim 3, it is characterised in that：It is equipped in the gap and is coaxially disposed with the shaft
Metal bellows mechanical seal part；The shaft, the other end and institute are fixed in described metal bellows mechanical seal part one end
Gland seal is stated to fix.
5. hot water circulating pump as claimed in claim 3, it is characterised in that：Along the shaft axial direction in the cooling water cavity
It is extended with the retaining wall for obstructing flow；The retaining wall upper end is connect with the bearing body inner wall, and lower end is connect with the ring wall,
So that " C " character form structure that the axial direction of the cooling water cavity is annular in shape.
6. hot water circulating pump as claimed in claim 5, it is characterised in that：The cooling water cavity difference shape of the retaining wall both sides
Into water inlet end and water outlet；The water inlet end is connect with the water inlet, and the water outlet is connect with the water outlet.
7. such as hot water circulating pump according to any one of claims 1 to 6, it is characterised in that：Oil is additionally provided in the bearing body
Chamber；The oil pocket is located at side of the machine sealing chamber far from the cooling water cavity；The oil pocket is close to the side of the machine sealing chamber
Equipped with front bearing retainer, the side far from the machine sealing chamber is equipped with rear bearing cover；The shaft both ends are pierced by the fore bearing respectively
Lid and the rear bearing cover；The both ends that the shaft is located in the oil pocket are respectively equipped with bearing.
8. hot water circulating pump as claimed in claim 7, it is characterised in that：The shaft is also arranged with retaining ring；The water blocking
Circle is between the machine sealed cover and the front bearing retainer.
9. hot water circulating pump as claimed in claim 7, it is characterised in that：The bearing includes cylinder roller bearing and two corner connections
Touch ball bearing；The cylinder roller bearing is arranged on the shaft close to one end of the front bearing retainer；Two angular contact balls
Bearing is disposed side by side on the shaft close to one end of the rear bearing cover；The contact angle of two angular contact ball bearings is with respect to court
Outer setting.
10. hot water circulating pump as claimed in claim 9, it is characterised in that：The bearing body is equipped with what is connected with the oil pocket
Oil ga(u)ge hole；The oil ga(u)ge hole is provided with oil ga(u)ge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721638228.9U CN207554358U (en) | 2017-11-29 | 2017-11-29 | A kind of hot water circulating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721638228.9U CN207554358U (en) | 2017-11-29 | 2017-11-29 | A kind of hot water circulating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207554358U true CN207554358U (en) | 2018-06-29 |
Family
ID=62678205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721638228.9U Active CN207554358U (en) | 2017-11-29 | 2017-11-29 | A kind of hot water circulating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207554358U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939690A (en) * | 2017-11-29 | 2018-04-20 | 广东顺达船舶工程有限公司 | A kind of hot water circulating pump |
-
2017
- 2017-11-29 CN CN201721638228.9U patent/CN207554358U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939690A (en) * | 2017-11-29 | 2018-04-20 | 广东顺达船舶工程有限公司 | A kind of hot water circulating pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Connection structure of bearing cover and rotor shaft in hot-water recycle pump Effective date of registration: 20200708 Granted publication date: 20180629 Pledgee: Leliu sub branch of Guangdong Shunde Rural Commercial Bank Co.,Ltd. Pledgor: GUANGDONG SHUNDA MARINE ENGINEERING Co.,Ltd. Registration number: Y2020980003898 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20180629 Pledgee: Leliu sub branch of Guangdong Shunde Rural Commercial Bank Co.,Ltd. Pledgor: GUANGDONG SHUNDA MARINE ENGINEERING Co.,Ltd. Registration number: Y2020980003898 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |