CN105071582A - Submersible motor shaft extension end sealing member - Google Patents
Submersible motor shaft extension end sealing member Download PDFInfo
- Publication number
- CN105071582A CN105071582A CN201510605208.0A CN201510605208A CN105071582A CN 105071582 A CN105071582 A CN 105071582A CN 201510605208 A CN201510605208 A CN 201510605208A CN 105071582 A CN105071582 A CN 105071582A
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- China
- Prior art keywords
- tubular body
- motor shaft
- submersible motor
- axle stretch
- stretch end
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Abstract
The invention provides a submersible motor shaft extension end sealing member, and belongs to the field of submersible motors. The submersible motor shaft extension end sealing member comprises at most two tubular bodies which sleeve a motor shaft at a shaft extension end of a submersible motor. One of the tubular bodies is arranged outside the submersible motor. Each tubular body is fixedly connected to a shell of the submersible motor through one end, and the end part of the other end of each tubular body is in interference fit with the motor shaft. The inside of each tubular body is equipped with at least one annular protruding body which is in interference fit with the motor shaft. When the motor shaft rotates, the end part of the other end of each tubular body and each annular protruding body, which are in interference fit with the motor shaft, rub against the motor shaft. The submersible motor shaft extension end sealing member provided by the embodiment of the invention has a simple structure, and has good sealing performance not affected by the depth of water.
Description
Technical field
The present invention relates to submersible motor field, in particular to a kind of submersible motor axle stretch end seal.
Background technology
At present, the axle stretch end of submersible motor generally adopts the dynamic and static ring mechanical sealing member of Double End.But such dynamic and static ring mechanical sealing member has complicated structure usually, thus there is the problem that production difficulty is comparatively large, production cost is higher and installation difficulty is larger; In addition, when rotating ring rotates, between rotating ring and stationary ring, there is larger frictional dissipation, thus must adopt oil to cool, thus need to increase further the oil cylinder (when a failure occurs it, the oil in oil cylinder may leak in water, cause water contaminated) of structure complexity; In addition, when diving depth is darker, this dynamic and static ring mechanical sealing member may make the reduction of its sealing property even lose efficacy due to larger external pressure.
Summary of the invention
The object of the present invention is to provide a kind of submersible motor axle stretch end seal, with improve large compared with complicated, installation difficulty for the structure of the dynamic and static ring mechanical sealing member of submersible motor axle stretch end in prior art, be not suitable for the problem that works in compared with deep water body.
The present invention is achieved in that
A kind of submersible motor axle stretch end seal, comprise two tubular bodies being sheathed on the axle stretch end motor shaft of submersible motor at the most, be placed in the outside of described submersible motor one of in described tubular body, each described tubular body is fixedly connected on the housing of described submersible motor by its one end, the end interference fit of the other end of each described tubular body is in described motor shaft, the inside of each described tubular body is provided with at least one ring-type bossy body, each described ring-type bossy body interference fit is in described motor shaft, when described motor shaft rotates, each described tubular body interference fit rubs in the end of the other end of described motor shaft and each described ring-type bossy body mutually with described motor shaft.
Further, the number of described tubular body is one, and a described tubular body is placed in the outside of described housing.Under normal circumstances, the submersible motor axle stretch end seal comprising such tubular body just can realize good sealing effectiveness.
Further, the number of described tubular body is two, and described two tubular bodies are opposed, and a tubular body in described two tubular bodies is placed in the outside of described housing, and another tubular body in described two tubular bodies is placed in the inside of described housing at least in part.When comprising two such tubular bodies, the sealing property of submersible motor axle stretch end seal can be strengthened further.
Further, each described tubular body interference fit curves inwardly in the port of the other end of described motor shaft, and the internal diameter of described port is less than the external diameter of described motor shaft.In this way, the port of each tubular body closely can be sheathed on the axle stretch end motor shaft of submersible motor, prevents the water of submersible motor axle stretch end seal outside from entering between submersible motor axle stretch end seal and axle stretch end motor shaft.
Further, the internal diameter of each described ring-type bossy body is less than each described tubular body interference fit in the internal diameter of the port of the other end of described motor shaft.Can guarantee that each tubular body can closely be sheathed on axle stretch end motor shaft in this way, ensure sealing effectiveness with this.
Further, one end that each described tubular body is fixedly connected on described housing is provided with the circular extension of the length direction perpendicular to described tubular body, and described tubular body is fixedly connected on described housing by described circular extension.Utilize this circular extension easily submersible motor axle stretch end seal can be fixed on the housing of submersible motor, and the portion deforms that submersible motor axle stretch end seal seals can be prevented.
Further, the end face of each described ring-type bossy body and described motor shaft interference fit is arc surface, the ring-type bossy body of this form not only can make submersible motor axle stretch end seal closely be sheathed on axle stretch end motor shaft, can also reduce the friction with axle stretch end motor shaft.
Further, the length of each described tubular body and pipe thickness set according to the size of described submersible motor, thus can guarantee to realize good sealing.
Further, the number of the described ring-type bossy body that each described tubular body inside is arranged is two, can strengthen the sealing intensity between submersible motor axle stretch end seal and axle stretch end motor shaft in this way.
Further, each described tubular body is rubber.Because rubber has good heat-resistant antifriction, preferably elasticity and good breaking strength etc., submersible motor axle stretch end seal thus can be made to have the sealing effectiveness of expectation.
The beneficial effect that the present invention realizes: the submersible motor axle stretch end seal that the embodiment of the present invention provides comprises two tubular bodies being sheathed on the axle stretch end motor shaft of submersible motor at the most, be placed in the outside of submersible motor one of in described tubular body, each tubular body is fixedly connected on the housing of submersible motor by its one end, and the end interference fit of its other end is in motor shaft, the inside of each tubular body is provided with at least one interference fit in the ring-type bossy body of motor shaft, when motor shaft rotates, each tubular body interference fit rubs in the end of the other end of motor shaft and each ring-type bossy body mutually with motor shaft.When using this submersible motor axle stretch end seal, because tubular body closely surrounds axle stretch end motor shaft, thus can prevent the water of submersible motor axle stretch end seal outside from entering in submersible motor; In addition, because tubular body surrounds the characteristic of axle stretch end motor shaft, so the pressure of outside water can be utilized ensure and strengthen the sealing of submersible motor axle stretch end seal.This shows, the submersible motor axle stretch end seal that the embodiment of the present invention provides not only has simple structure and also has not by the good seal performance of water depth effect.
For making above and other object of the present invention, feature and advantage can become apparent, preferred embodiment cited below particularly, and coordinate institute's accompanying drawings, are described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.Shown in accompanying drawing, above-mentioned and other object of the present invention, Characteristics and advantages will be more clear.Reference numeral identical in whole accompanying drawing indicates identical part.Deliberately do not draw accompanying drawing by actual size equal proportion convergent-divergent, focus on purport of the present invention is shown.
Fig. 1 shows the schematic cross sectional views of submersible motor axle stretch end seal when being installed on the axle stretch end motor shaft of submersible motor that first embodiment of the invention provides;
Fig. 2 shows the schematic diagram of the submersible motor axle stretch end seal that first embodiment of the invention provides;
Fig. 3 shows the schematic cross sectional views of submersible motor axle stretch end seal when being installed on the axle stretch end motor shaft of submersible motor that second embodiment of the invention provides.
Wherein Reference numeral gathers as follows: axle stretch end motor shaft 100, tubular body 200, housing 110, circular extension 210, groove 111, hole 211, port 220, ring-type bossy body 230.
Embodiment
In view of the dynamic and static ring mechanical seal for submersible motor axle stretch end in prior art have structure large compared with complicated, installation difficulty, be not suitable for the problem that works in compared with deep water body, the present inventor visualizes a kind of submersible motor axle stretch end seal.This submersible motor axle stretch end seal comprises two tubular bodies being sheathed on the axle stretch end motor shaft of submersible motor at the most, be placed in the outside of submersible motor one of in described tubular body, each tubular body is fixedly connected on the housing of submersible motor by its one end, and the end interference fit of its other end is in motor shaft, the inside of each tubular body is provided with at least one interference fit in the ring-type bossy body of motor shaft, when motor shaft rotates, each tubular body interference fit rubs in the end of the other end of motor shaft and each ring-type bossy body mutually with motor shaft.When using this submersible motor axle stretch end seal, because tubular body closely surrounds axle stretch end motor shaft, thus can prevent the water of seal outside from entering in submersible motor; In addition, because tubular body surrounds the characteristic of axle stretch end motor shaft, so the pressure of outside water can be utilized ensure and strengthen the sealing of submersible motor axle stretch end seal.This shows, the submersible motor axle stretch end seal that the embodiment of the present invention provides not only has simple structure and also has not by the good seal performance of water depth effect.
Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
The schematic cross sectional views of submersible motor axle stretch end seal when being installed on the axle stretch end motor shaft of submersible motor that first embodiment of the invention shown in Fig. 1 provides, Fig. 2 shows the schematic diagram of the submersible motor axle stretch end seal that first embodiment of the invention provides.It should be noted that about submersible motor, housing 110 and the axle stretch end motor shaft 100 of submersible motor are only shown for schematic object in Fig. 1.Refer to Fig. 1 and Fig. 2, the submersible motor axle stretch end seal that first embodiment of the invention provides comprises a tubular body 200 of the axle stretch end motor shaft 100 being sheathed on submersible motor, this tubular body 200 is placed in the outside of submersible motor, and tubular body 200 can be fixedly connected on the housing 110 (below of Fig. 1 middle shell 110 is the outside of submersible motor) of submersible motor by its one end.In a kind of embodiment, one end that tubular body 200 is fixedly connected on housing 110 can be provided with the circular extension 210 of the length direction perpendicular to this tubular body 200, and tubular body 200 can be fixedly attached to the groove 111 of housing 110 by this circular extension 210.Such as, circular extension 210 can be provided with multiple hole 211, and (number in hole 211 is preferably at least two, and hole 211 is preferably uniformly distributed in circular extension 210), circular extension 210 can passing hole 211 be threaded in groove 111.But, it should be noted that, tubular body 200 can also adopt bonding or other suitable modes to be fixedly connected on housing 110, as long as ensure that tubular body 200 can be tightly connected to housing 110 and tubular body 200 can not produce self injurious deformation when axle stretch end motor shaft 100 rotates, the specific embodiment of the invention is not as limit.
The end of the other end (namely away from one end of housing 110) of tubular body 200 can interference fit in axle stretch end motor shaft 100.As shown in Figure 1, tubular body 200 interference fit can curve inwardly in the port 220 of the other end of axle stretch end motor shaft 100, and that is, when not being sheathed on axle stretch end motor shaft 100, the internal diameter of this port 220 should be less than the external diameter of axle stretch end motor shaft 100.Therefore, the port 220 of tubular body 200 can closely be sheathed on axle stretch end motor shaft 100, thus prevents the water of submersible motor axle stretch end seal outside from entering between submersible motor axle stretch end seal and axle stretch end motor shaft 100.
The inside of tubular body 200 can be provided with ring-type bossy body 230.Be similar to port 220, ring-type bossy body 230 also can interference fit in axle stretch end motor shaft 100, that is, when not being sheathed on axle stretch end motor shaft 100, the internal diameter of this ring-type bossy body 230 should be less than the external diameter of axle stretch end motor shaft 100.When axle stretch end motor shaft 100 rotates, tubular body 200 interference fit in the port 220 of axle stretch end motor shaft 100 and ring-type bossy body 230 and the friction of axle stretch end motor shaft 100 phase, thus can reduce frictional dissipation compared to dynamic and static ring mechanical sealing member of the prior art.In addition, because the outside of tubular body 200 is surrounded by water, therefore no longer need to dissipate to the heat that the friction between tubular body 200 and axle stretch end motor shaft 100 generates with oil, only need at a small amount of lubricant of the internal coat of tubular body 200.
The internal diameter of ring-type bossy body 230 can be less than tubular body 200 interference fit in the internal diameter of the port 220 of axle stretch end motor shaft 100, but also can be equal or there is other suitable dimensions, as long as guarantee that tubular body 200 can closely be sheathed on axle stretch end motor shaft 100 both it.It should be noted that tubular body 200 shown in Fig. 1 comprises an only ring-type bossy body 230, but the number of ring-type bossy body 230 can also be two or more, to guarantee the compact siro spinning technology of tubular body 200 and axle stretch end motor shaft 100.In addition, as shown in Figure 1, ring-type bossy body 230 can be arc surface with the end face of axle stretch end motor shaft 100 interference fit, the ring-type bossy body 230 of this form can reduce the friction with axle stretch end motor shaft 100, but ring-type bossy body 230 for rectangular surfaces or can also have other suitable forms with the end face of axle stretch end motor shaft 100 interference fit, the specific embodiment of the invention is not as limit.
Tubular body 200 can be rubber, such as Cowhells rubber or fluorubber goods etc.Because rubber has good heat-resistant antifriction, preferably elasticity and good breaking strength etc., submersible motor axle stretch end seal thus can be made to have the sealing effectiveness of expectation.
It should be noted that, the size that the length of tubular body 200 and pipe thickness all can be in particular axle stretch end motor shaft 100 according to submersible motor sets, such as the size of axle stretch end motor shaft 100 is larger, then the length of tubular body 200 is longer and its pipe thickness is also thicker, suitably to realize good sealing.
The submersible motor axle stretch end seal that first embodiment of the invention provides comprises the axle stretch end motor shaft 100 and the tubular body 200 being placed in submersible motor outside that are sheathed on submersible motor, tubular body 200 is fixedly connected on the housing 110 of submersible motor by its one end, and the end interference fit of its other end is in axle stretch end motor shaft 100, the inside of tubular body 200 is provided with at least one interference fit in the ring-type bossy body 230 of motor shaft, when axle stretch end motor shaft 100 rotates, tubular body 200 interference fit is in the end of the other end of motor shaft and each ring-type bossy body 230 and the friction of axle stretch end motor shaft 100 phase.When using this submersible motor axle stretch end seal, because tubular body 200 closely surrounds axle stretch end motor shaft 100, thus can prevent the water of submersible motor axle stretch end seal outside from entering in submersible motor, that is, submersible motor axle stretch end seal simple by it, easy-to-install structure can realize sealing.In addition, because tubular body 200 surrounds the characteristic of axle stretch end motor shaft 100, so the pressure of outside water can be utilized ensure and strengthen the sealing of submersible motor axle stretch end seal, that is, the sealing of submersible motor axle stretch end seal such when working in deep water can't influencedly even can be reinforced.This shows, the submersible motor axle stretch end seal that the embodiment of the present invention provides not only has simple structure and also has not by the good seal performance of water depth effect.
Fig. 3 shows the schematic cross sectional views of submersible motor axle stretch end seal when being installed on the axle stretch end motor shaft of submersible motor that second embodiment of the invention provides.It should be noted that about submersible motor, housing 110 and the axle stretch end motor shaft 100 of submersible motor are only shown for schematic object in Fig. 3.Refer to Fig. 3, the difference of the submersible motor axle stretch end seal that the submersible motor axle stretch end seal that second embodiment of the invention provides and first embodiment of the invention provide mainly is: the submersible motor axle stretch end seal that second embodiment of the invention provides can comprise two tubular bodies 200.It should be noted that, the structure that the tubular body 200 that the submersible motor axle stretch end seal that each tubular body in two tubular bodies 200 that the submersible motor axle stretch end seal that second embodiment of the invention provides comprises has to be provided with first embodiment of the invention comprises is identical, thus the only outstanding difference describing submersible motor axle stretch end seal that second embodiment of the invention provides and the submersible motor axle stretch end seal that first embodiment of the invention provides hereinafter, and the no longer same or analogous content of repeated description.
Refer to Fig. 3, two tubular bodies 200 that the submersible motor axle stretch end seal that second embodiment of the invention provides comprises can be opposed, wherein, a tubular body 200 in these two tubular bodies 200 can be placed in the outside (below of Fig. 3 middle shell 110) of the housing 110 of submersible motor, and another tubular body 200 in these two tubular bodies 200 can be placed in the inside (top of Fig. 3 middle shell 110) of the housing 110 of submersible motor at least in part.For the tubular body 200 of inside of housing 110 being placed in submersible motor at least in part, its circular extension 210 is placed in the outside of housing 110.Each tubular body 200 can realize the effect identical with the effect in the submersible motor axle stretch end seal provided in the first embodiment, therefore, the submersible motor axle stretch end seal that second embodiment of the invention provides can realize the better sealing of submersible motor axle stretch end seal provided than the first embodiment when adopting such arrangement.
The submersible motor axle stretch end seal that the embodiment of the present invention provides comprises two tubular bodies being sheathed on the axle stretch end motor shaft of submersible motor at the most, be placed in the outside of submersible motor one of in described tubular body, each tubular body is fixedly connected on the housing of submersible motor by its one end, and the end interference fit of its other end is in motor shaft, the inside of each tubular body is provided with at least one interference fit in the ring-type bossy body of motor shaft, when motor shaft rotates, each tubular body interference fit rubs in the end of the other end of motor shaft and each ring-type bossy body mutually with motor shaft.When using this submersible motor axle stretch end seal, because tubular body closely surrounds axle stretch end motor shaft, thus can prevent the water of submersible motor axle stretch end seal outside from entering in submersible motor; In addition, because tubular body surrounds the characteristic of axle stretch end motor shaft, so the pressure of outside water can be utilized ensure and strengthen the sealing of submersible motor axle stretch end seal.This shows, the submersible motor axle stretch end seal that the embodiment of the present invention provides not only has simple structure and also has not by the good seal performance of water depth effect.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to define further it and explain in accompanying drawing subsequently.
In describing the invention, it should be noted that, term " " center ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, or this invention product orientation of usually putting or position relationship when using, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second ", " the 3rd " etc. only for distinguishing description, and can not be interpreted as instruction or hint relative importance.
In describing the invention, also it should be noted that, unless otherwise clearly defined and limited, term " setting ", " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Claims (10)
1. a submersible motor axle stretch end seal, it is characterized in that, comprise two tubular bodies being sheathed on the axle stretch end motor shaft of submersible motor at the most, be placed in the outside of described submersible motor one of in described tubular body, each described tubular body is fixedly connected on the housing of described submersible motor by its one end, the end interference fit of the other end of each described tubular body is in described motor shaft, the inside of each described tubular body is provided with at least one ring-type bossy body, each described ring-type bossy body interference fit is in described motor shaft, when described motor shaft rotates, each described tubular body interference fit rubs in the end of the other end of described motor shaft and each described ring-type bossy body mutually with described motor shaft.
2. submersible motor axle stretch end seal according to claim 1, is characterized in that, the number of described tubular body is one, and a described tubular body is placed in the outside of described housing.
3. submersible motor axle stretch end seal according to claim 1, it is characterized in that, the number of described tubular body is two, described two tubular bodies are opposed, a tubular body in described two tubular bodies is placed in the outside of described housing, and another tubular body in described two tubular bodies is placed in the inside of described housing at least in part.
4. the submersible motor axle stretch end seal according to Claims 2 or 3, is characterized in that, each described tubular body interference fit curves inwardly in the port of the other end of described motor shaft, and the internal diameter of described port is less than the external diameter of described motor shaft.
5. submersible motor axle stretch end seal according to claim 4, is characterized in that, the internal diameter of each described ring-type bossy body is less than each described tubular body interference fit in the internal diameter of the port of the other end of described motor shaft.
6. submersible motor axle stretch end seal according to claim 1, it is characterized in that, one end that each described tubular body is fixedly connected on described housing is provided with the circular extension of the length direction perpendicular to described tubular body, and described tubular body is fixedly connected on described housing by described circular extension.
7. submersible motor axle stretch end seal according to claim 1, is characterized in that, the end face of each described ring-type bossy body and described motor shaft interference fit is arc surface.
8. submersible motor axle stretch end seal according to claim 1, is characterized in that, the length of each described tubular body and pipe thickness set according to the size of described submersible motor.
9. submersible motor axle stretch end seal according to claim 1, is characterized in that, the number of the described ring-type bossy body that each described tubular body inside is arranged is two.
10. submersible motor axle stretch end seal according to claim 1, is characterized in that, each described tubular body is rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510605208.0A CN105071582B (en) | 2015-09-21 | 2015-09-21 | submersible motor shaft extension end seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510605208.0A CN105071582B (en) | 2015-09-21 | 2015-09-21 | submersible motor shaft extension end seal |
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| Publication Number | Publication Date |
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| CN105071582A true CN105071582A (en) | 2015-11-18 |
| CN105071582B CN105071582B (en) | 2018-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510605208.0A Active CN105071582B (en) | 2015-09-21 | 2015-09-21 | submersible motor shaft extension end seal |
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| CN (1) | CN105071582B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2250594Y (en) * | 1995-12-01 | 1997-03-26 | 山东十里泉发电厂 | Rubber sealing washer for generator water spinning box |
| DE102011077258A1 (en) * | 2011-06-09 | 2012-12-13 | Robert Bosch Gmbh | Drive device for windscreen wiper device for cleaning e.g. front window in motor car, has sealing ring with carrier part connected with annular seal part, where front end of carrier part forms supporting surface to axially support crank |
| CN203387328U (en) * | 2013-08-16 | 2014-01-08 | 杭州明珠音乐喷泉有限公司 | Underwater stepping motor for digital waterscape spraying head |
| CN103812261A (en) * | 2013-08-22 | 2014-05-21 | 山东星源矿山设备集团有限公司 | Mining explosion-proof submersible motor for booster pump |
| CN204947790U (en) * | 2015-09-21 | 2016-01-06 | 陈文书 | Submersible motor axle stretch end seal |
-
2015
- 2015-09-21 CN CN201510605208.0A patent/CN105071582B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2250594Y (en) * | 1995-12-01 | 1997-03-26 | 山东十里泉发电厂 | Rubber sealing washer for generator water spinning box |
| DE102011077258A1 (en) * | 2011-06-09 | 2012-12-13 | Robert Bosch Gmbh | Drive device for windscreen wiper device for cleaning e.g. front window in motor car, has sealing ring with carrier part connected with annular seal part, where front end of carrier part forms supporting surface to axially support crank |
| CN203387328U (en) * | 2013-08-16 | 2014-01-08 | 杭州明珠音乐喷泉有限公司 | Underwater stepping motor for digital waterscape spraying head |
| CN103812261A (en) * | 2013-08-22 | 2014-05-21 | 山东星源矿山设备集团有限公司 | Mining explosion-proof submersible motor for booster pump |
| CN204947790U (en) * | 2015-09-21 | 2016-01-06 | 陈文书 | Submersible motor axle stretch end seal |
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| Publication number | Publication date |
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| CN105071582B (en) | 2018-01-26 |
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Effective date of registration: 20190417 Address after: 317500 Chenguang Road, East New District, Wenling City, Taizhou City, Zhejiang Province Patentee after: Zhejiang Jeter industry and trade Limited by Share Ltd Address before: 222300 No. 49-18, Houcun, Baitabu Town, Donghai County, Lianyungang City, Jiangsu Province Patentee before: Chen Wenshu |
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Denomination of invention: Submersible motor shaft extension end sealing member Effective date of registration: 20191121 Granted publication date: 20180126 Pledgee: Zhejiang Tyrone commercial bank Limited by Share Ltd Taizhou Wenling branch Pledgor: Zhejiang Jeter industry and trade Limited by Share Ltd Registration number: Y2019330000207 |
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