CN212003569U - Novel rotor sliding vane pump - Google Patents
Novel rotor sliding vane pump Download PDFInfo
- Publication number
- CN212003569U CN212003569U CN202020249192.0U CN202020249192U CN212003569U CN 212003569 U CN212003569 U CN 212003569U CN 202020249192 U CN202020249192 U CN 202020249192U CN 212003569 U CN212003569 U CN 212003569U
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- rotor
- pump body
- baffle
- sliding vane
- rear cover
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- Expired - Fee Related
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- 230000008878 coupling Effects 0.000 claims abstract description 6
- 238000010168 coupling process Methods 0.000 claims abstract description 6
- 238000005859 coupling reaction Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 35
- 238000003825 pressing Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 239000013013 elastic material Substances 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a novel rotor sliding vane pump, include: the pump body, rotor inside lining, coupling assembling, back shroud, baffle, rotor shaft, rotor, back shroud, compress tightly the subassembly, one in the pump body is served and is provided with the opening, and the other end is integral seal structure, coupling assembling, rotor inside lining, back shroud, baffle have set gradually in the cavity of the pump body, coupling assembling is close to or sets up in the sealed end of the pump body, the baffle is close to the opening. In this way, the utility model relates to a novel rotor sliding vane pump has reduced a leakage face, has reduced the risk of high-pressure leakage, has improved holistic leakproofness, has reduced the processingquantity, has reduced the processing degree of difficulty and processing cost.
Description
Technical Field
The utility model relates to a gleitbretter pump field especially relates to a novel rotor gleitbretter pump.
Background
The pumps are various in types, and are divided into vane pumps and displacement pumps according to the working principle and the structure.
Centrifugal pump, volute pump, axial-flow pump and mixed flow pump belong to the impeller pump, its characteristics: the structure is simple, the cost is low, the installation and the maintenance are convenient, the centrifugal pump is suitable for conveying low-viscosity fluid, but the centrifugal pump generally has no self-absorption capacity, and even the self-absorption centrifugal pump has the defects of poor self-absorption capacity and large volume. If the reciprocating pump belongs to a positive displacement pump, the characteristics are as follows: the self-suction capacity is strong, but the defects of low volumetric efficiency, complex structure, large vibration, large volume, high manufacturing cost and the like exist.
Gear pump, screw pump, lobe pump etc. belong to the displacement pump, and the characteristics are: the mechanical efficiency and the volumetric efficiency are high, the flow pulsation is small, the working noise is low, the self-absorption capacity is strong, but the requirement on the manufacturing precision of a rotor profile line is high, the high running precision is difficult to guarantee for a long time in the using process, the service life is limited, and the clearance exists between rotors, so that the self-absorption capacity is poor when the self-absorption capacity is used for conveying high-viscosity liquid and low-viscosity liquid such as gasoline, and the volumetric efficiency is low.
The rotor sliding vane pump belongs to a positive displacement pump, a sliding vane of the sliding vane pump can be in motion contact with an inner cavity of a pump body without a radial gap, and the sliding vane pump has an abrasion compensation function, so that the self-priming capability is strong, the volume efficiency is high, and the like; the overall cost is still relatively high in order to make the wear resistance of the rotor vane pump practical.
The structure of the sliding vane pump is shown in fig. 1, and the following problems exist:
when the water pressure exceeds a certain value, the spring retainer ring is easy to fall off from the retainer ring groove after the pump body is pressed and deformed due to insufficient rigidity of the pump body;
in order to maintain the rigidity of the pump body, the design of the pump has limitations on the selection of geometric shapes and materials, for example, the geometric shape around the spring retainer groove needs to be large; also, the non-metallic class of materials, including some metallic materials, is limited because the modulus of elasticity is too small to be easily deformed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a novel rotor sliding vane pump, has advantages such as reliable performance height, compact structure, sealing performance are good, has extensive market prospect in sliding vane pump's application and popularization simultaneously.
In order to solve the technical problem, the utility model discloses a technical scheme be:
a novel rotor sliding vane pump is provided, which comprises: a pump body, a rotor lining, a connecting component, a rear cover plate, a baffle plate, a rotor shaft, a rotor, a rear cover and a compressing component,
an opening is arranged at one end in the pump body, an integral sealing structure is arranged at the other end, a connecting assembly, a rotor lining, a rear cover plate and a baffle plate are sequentially arranged in a cavity of the pump body, the connecting assembly is close to or arranged at the sealing end of the pump body, the baffle plate is close to the opening,
one end of the rear cover passes through the opening to be in contact with the baffle, a pressing component for pressing the rear cover, the baffle and the rear cover plate is arranged at the opening of the pump body,
the rotor drives the rotor shaft is rotatory, is connected with the rotor the one end of rotor shaft set up in the back shroud, swing joint has the gleitbretter the other end of rotor shaft pass in proper order behind baffle, back shroud and the rotor inside lining with coupling assembling is connected.
In a preferred embodiment of the present invention, the coupling assembly includes a thread stopper.
In a preferred embodiment of the present invention, the connecting member includes a spring clip.
In a preferred embodiment of the present invention, the connecting member includes a front end cap.
In a preferred embodiment of the present invention, the connecting member includes a bearing.
In a preferred embodiment of the present invention, the rotating shaft includes a rolling bearing and a sliding bearing.
In a preferred embodiment of the present invention, a motor cover plate is disposed on the pump body or the opening, and a motor stator for driving the rotor to rotate is disposed between the rear cover and the motor cover plate.
In a preferred embodiment of the present invention, the motor cover plate is disposed on the pump body by interference connection or screw connection.
In a preferred embodiment of the present invention, the stopper is an elastic stopper having elasticity.
In a preferred embodiment of the present invention, the rotor lining is integrally disposed on the inner wall of the pump body.
The utility model has the advantages that: the leakage surface is reduced, the risk of high-pressure leakage is reduced, the integral sealing performance is improved, the processing amount is reduced, and the processing difficulty and the processing cost are reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
FIG. 1 is a schematic diagram of a sliding vane pump of the prior art;
fig. 2 is a schematic structural diagram of a first embodiment of a novel rotor sliding vane pump according to the present invention;
fig. 3 is a schematic structural diagram of a second embodiment of a novel rotor sliding vane pump according to the present invention;
fig. 4 is a schematic structural diagram of a third embodiment of a novel rotor sliding vane pump according to the present invention;
fig. 5 is a schematic structural diagram of a fourth embodiment of a novel rotor sliding vane pump according to the present invention;
fig. 6 is a schematic structural diagram of a fifth embodiment of a novel rotor sliding vane pump according to the present invention;
fig. 7 is a schematic structural diagram of a sixth embodiment of the novel sliding vane rotor pump of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-7, an embodiment of the present invention includes:
detailed description of the preferred embodiment
A novel rotor sliding vane pump structurally comprises a pump body 101, a rotor lining 102, a front cover plate 103, a rear cover plate 104, a baffle 105, a rotor shaft 106, a rotor 107, a rear cover 108 and a spring clamp 109, wherein spring retainer rings and grooves of the spring retainer rings are eliminated, machining amount is reduced by 10-20%, assembling procedures are reduced, assembling difficulty is reduced, non-metal materials can be used for the structure in the sliding vane pump, the weight of the pump body can be reduced by 50-70%, and cost can be reduced by 20-30%.
One end in the pump body is provided with an opening allowing the rotor shaft to penetrate, the other end of the pump body is of an integral sealing structure, a leakage surface can be reduced, high-pressure leakage risks are reduced, the sealing performance of the pump body is improved, leakage caused by machining and assembling errors is prevented, the rigidity of the integral sealing structure is good, reduction of materials and use of non-metal materials are possible, and cost is further reduced.
The pump body is characterized in that a front cover plate, a rotor lining, a rear cover plate and a baffle are sequentially arranged in a cavity of the pump body, the front cover plate is close to or closely attached to a sealing end of the pump body, the baffle is close to the opening, and the stop block can be directly made of elastic materials and can also be of other elastic structures. The rotor lining with a regular change curve can be arranged on the inner wall of the pump body in a split/integrated mode, the rotor lining can be of a regular structure such as a perfect circle and the like and can also be of an eccentric structure, so that the rotor lining and the rotor shaft can be arranged coaxially and can also be arranged eccentrically, and as long as a regularly changed space (such as a crescent space and the like) can be formed between the rotor lining and the outer surface of the rotor shaft, the volume of an element can be increased or reduced by the sliding sheet.
One end of the rear cover penetrates through the opening to be in contact with the baffle, and a spring clip used for compressing the rear cover, the baffle and the rear cover plate is arranged at the opening of the pump body so as to improve the sealing performance of the sliding vane pump.
The motor can be connected with the pump body through multiple modes such as interference connection, threaded connection, and the output of motor passes through the rotor drives the rotor shaft rotation, is connected with the rotor the one end of rotor shaft set up in the back shroud, the other end of rotor shaft pass in proper order behind baffle, back shroud and the rotor inside lining with the front shroud is connected, is located the front shroud with between the back shroud the last slot that is provided with of rotor shaft, gleitbretter activity set up in the slot.
When the rotor drives the rotor shaft to rotate, the slip sheet is thrown out from the groove under the action of centrifugal force, the outer end part of the slip sheet is tightly attached to the inner wall of the rotor lining, the crescent space is divided into a plurality of element volumes with fan-shaped structures by the slip sheet, when the element volumes are gradually increased, vacuum is generated at the liquid inlet end of the pump body to suck liquid, the element volumes are gradually reduced along with the rotation of the rotor shaft, the liquid in the cavity of the pump body is squeezed, the liquid can be discharged from the liquid outlet end, the element volumes are increased and reduced repeatedly, and the liquid is continuously sucked and discharged.
Detailed description of the invention
A novel rotor sliding vane pump comprises a pump body 101, a rotor lining 102, a front cover plate 103, a rear cover plate 104, a baffle plate 105, a rotor shaft 106, a rotor 107, a rear cover 108 and a thread stop block 110.
One end in the pump body is provided with an opening allowing the rotor shaft to pass through, the other end is an integral sealing structure, a front cover plate, a rotor lining, a rear cover plate and a baffle are sequentially arranged in a cavity of the pump body, the front cover plate is close to or clings to the sealing end of the pump body, the baffle is close to the opening, and the baffle can be directly made of elastic materials or other elastic structures. The rotor lining with a regular change curve is arranged on the inner wall of the pump body, the rotor lining can be of a regular circle and other regular structures and can also be of an eccentric structure, so that the rotor lining and the rotor shaft can be coaxially arranged and can also be eccentrically arranged, as long as a regularly changed space is formed between the rotor lining and the outer surface of the rotor shaft, and the volume of the element can be increased or reduced by the sliding sheet.
One end of the rear cover penetrates through the opening to be in contact with the baffle, and a threaded stop block used for compressing the rear cover, the baffle and the rear cover plate is arranged at the opening of the pump body so as to improve the sealing performance of the sliding vane pump.
The screw thread stop dog can be various structures such as hollow cylinder, cube, the top surface of screw thread stop dog is provided with the fixed connection hole that is used for fixing the screw thread stop dog on the pump body, be provided with the screw thread on the outer wall of screw thread stop dog, when using, act on the screw thread of stop dog through certain moment of torsion, make the stop dog provide a sealing force on back shroud 108, screw thread stop dog and back shroud prevent through this sealing force from leaking. To further improve the sealing ability, a baffle 105 is arranged between the rear cover and the rear cover plate, the cross section of the baffle can be in various shapes, such as rectangle, circle and the like, and the baffle can be made of elastic materials, and further sealing effect is achieved through deformation.
The motor can be connected with the pump body through multiple modes such as interference connection, threaded connection, and the output of motor passes through the rotor drives the rotor shaft rotation, is connected with the rotor the one end of rotor shaft set up in the back shroud, the other end of rotor shaft pass in proper order behind baffle, back shroud and the rotor inside lining with the front shroud is connected, is located the front shroud with between the back shroud the last slot that is provided with of rotor shaft, gleitbretter activity set up in the slot.
Detailed description of the preferred embodiment
A novel rotor sliding vane pump comprises a pump body 101, a rotor lining 102, a bearing 111, a rear cover plate 104, a baffle 105, a rotor shaft 106, a rotor 107, a rear cover 108 and a spring clip 109.
One end in the pump body is provided with an opening allowing the rotor shaft to pass through, and the other end is an integral sealing structure. The bearing, the rotor lining, the rear cover plate and the baffle are sequentially arranged in the cavity of the pump body, the bearing can be directly arranged on the sealing end of the pump body, a groove can also be formed in the sealing end, the bearing can be arranged in the groove, the baffle is close to the opening, the stop block can be directly made of elastic materials, and other elastic structures can also be adopted. The rotor lining with a regular change curve is arranged on the inner wall of the pump body, the rotor lining can be of a regular circle and other regular structures and can also be of an eccentric structure, so that the rotor lining and the rotor shaft can be coaxially arranged and can also be eccentrically arranged, as long as a regularly changed space is formed between the rotor lining and the outer surface of the rotor shaft, and the volume of the element can be increased or reduced by the sliding sheet.
One end of the rear cover penetrates through the opening to be in contact with the baffle, and a spring clip used for compressing the rear cover, the baffle and the rear cover plate is arranged at the opening of the pump body so as to improve the sealing performance of the sliding vane pump. The motor can be connected with the pump body through multiple modes such as interference connection, threaded connection, and the output of motor passes through the rotor drives the rotor shaft rotation, is connected with the rotor the one end of rotor shaft set up in the back shroud, the other end of rotor shaft pass in proper order behind baffle, back shroud and the rotor inside lining with the bearing is connected, the bearing includes antifriction bearing, slide bearing etc. and is located the bearing with between the back shroud be provided with the slot on the rotor shaft, the gleitbretter activity set up in the slot.
Detailed description of the invention
A novel rotor sliding vane pump comprises a pump body 101, a rotor lining 102, a bearing 111, a rear cover plate 104, a baffle 105, a rotor shaft 106, a rotor 107, a rear cover 108 and a spring clip 109.
One end in the pump body is provided with an opening allowing the rotor shaft to pass through, and the other end is an integral sealing structure. The bearing, the rotor lining, the rear cover plate and the baffle are sequentially arranged in the cavity of the pump body, the bearing can be directly arranged on the sealing end of the pump body, a groove can also be formed in the sealing end, the bearing can be arranged in the groove, the baffle is close to the opening, the stop block can be directly made of elastic materials, and other elastic structures can also be adopted.
The rotor lining with a regular change curve is integrally arranged on the inner wall of the pump body, the rotor lining can be of a regular structure such as a perfect circle and the like and can also be of an eccentric structure, so that the rotor lining and the rotor shaft can be coaxially arranged and can also be eccentrically arranged, and as long as a regularly changed space is formed between the rotor lining and the outer surface of the rotor shaft, the volume of the element can be increased or reduced by the sliding sheet.
One end of the rear cover penetrates through the opening to be in contact with the baffle, and a spring clip used for compressing the rear cover, the baffle and the rear cover plate is arranged at the opening of the pump body so as to improve the sealing performance of the sliding vane pump. The motor can be connected with the pump body through multiple modes such as interference fit connection, threaded connection, and the output of motor passes through the rotor drives the rotor shaft rotation, is connected with the rotor the one end of rotor shaft set up in the back shroud, the other end of rotor shaft pass in proper order behind baffle, back shroud and the rotor inside lining with the bearing is connected, the position the front shroud with between the back shroud the last slot that is provided with of rotor shaft, gleitbretter activity set up in the slot.
Detailed description of the preferred embodiment
A novel rotor sliding vane pump comprises a pump body 101, a rotor lining 102, a bearing 111, a rear cover plate 104, a baffle 105, a rotor shaft 106, a motor rotor 107, a rear cover 108, a spring clamp 109, a motor stator 112 and a motor cover plate 113.
One end in the pump body is provided with an opening allowing the rotor shaft to pass through, and the other end is an integral sealing structure. And a bearing, a rotor lining, a rear cover plate and a baffle are sequentially arranged in the cavity of the pump body.
The bearing can be directly arranged on the sealing end of the pump body, a groove can be formed in the sealing end, the bearing can be arranged in the groove, the baffle is close to the opening, and the stop block can be directly made of elastic materials or other elastic structures. The rotor lining with a regular change curve is arranged on the inner wall of the pump body, the rotor lining can be of a regular circle and other regular structures and can also be of an eccentric structure, so that the rotor lining and the rotor shaft can be coaxially arranged and can also be eccentrically arranged, as long as a regularly changed space is formed between the rotor lining and the outer surface of the rotor shaft, and the volume of the element can be increased or reduced by the sliding sheet.
One end of the rear cover penetrates through the opening to be in contact with the baffle, and a spring clip used for compressing the rear cover, the baffle and the rear cover plate is arranged at the opening of the pump body so as to improve the sealing performance of the sliding vane pump.
The motor rotor is connected with one end of the rotor shaft is arranged in the rear cover, the other end of the rotor shaft penetrates through the baffle, the rear cover plate and the rotor lining in sequence and then is connected with the bearing, a groove is formed in the rotor shaft between the bearing and the rear cover plate, and the sliding piece is movably arranged in the groove.
The motor cover plate is connected with the pump body in various modes such as interference connection and threaded connection, the motor cover plate is of a concave structure, the motor stator is arranged between the rear cover and the motor cover plate, and after the motor stator is electrified, the motor stator generates a rotating magnetic field so as to drive the motor rotor and the rotor shaft to rotate.
Detailed description of the preferred embodiment
A novel rotor sliding vane pump comprises a pump body 101, a rotor lining 102, a bearing 111, a rear cover plate 104, a baffle 105, a rotor shaft 106, a motor rotor 107, a rear cover 108, a spring clamp 108, a motor stator 112 and a motor cover plate 113.
One end in the pump body is provided with an opening allowing the rotor shaft to pass through, and the other end is an integral sealing structure. And a bearing, a rotor lining, a rear cover plate and a baffle are sequentially arranged in the cavity of the pump body.
The bearing can be directly arranged on the sealing end of the pump body, a groove can be formed in the sealing end, the bearing can be arranged in the groove, the baffle is close to the opening, and the stop block can be directly made of elastic materials or other elastic structures. The rotor lining with a regular change curve is arranged on the inner wall of the pump body, the rotor lining can be of a regular circle and other regular structures and can also be of an eccentric structure, so that the rotor lining and the rotor shaft can be coaxially arranged and can also be eccentrically arranged, as long as a regularly changed space is formed between the rotor lining and the outer surface of the rotor shaft, and the volume of the element can be increased or reduced by the sliding sheet.
One end of the rear cover is arranged in the opening, the other end of the rear cover penetrates through the opening and contacts with the baffle, and a spring clamp used for compressing the rear cover, the baffle and the rear cover plate is arranged in the cavity to improve the sealing performance of the sliding vane pump.
The motor rotor is connected with one end of the rotor shaft is arranged in the rear cover, the other end of the rotor shaft penetrates through the baffle, the rear cover plate and the rotor lining in sequence and then is connected with the bearing, a groove is formed in the rotor shaft between the bearing and the rear cover plate, and the sliding piece is movably arranged in the groove.
The motor cover plate is arranged on the opening of the pump body in various modes such as interference connection, threaded connection and the like, the motor stator is arranged between the rear cover and the motor cover plate, and after the motor stator is electrified, the motor stator generates a rotating magnetic field so as to drive the motor rotor and the rotor shaft to rotate.
The utility model relates to a novel rotor sliding vane pump's beneficial effect is: the leakage surface is reduced, the risk of high-pressure leakage is reduced, the integral sealing performance is improved, the processing amount is reduced, and the processing difficulty and the processing cost are reduced.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.
Claims (10)
1. A novel rotor sliding vane pump is characterized by comprising: a pump body, a rotor lining, a connecting component, a rear cover plate, a baffle plate, a rotor shaft, a rotor, a rear cover and a compressing component,
an opening is arranged at one end in the pump body, an integral sealing structure is arranged at the other end, a connecting assembly, a rotor lining, a rear cover plate and a baffle plate are sequentially arranged in a cavity of the pump body, the connecting assembly is close to or arranged at the sealing end of the pump body, the baffle plate is close to the opening,
one end of the rear cover passes through the opening to be in contact with the baffle, a pressing component for pressing the rear cover, the baffle and the rear cover plate is arranged at the opening of the pump body,
the rotor drives the rotor shaft is rotatory, is connected with the rotor the one end of rotor shaft set up in the back shroud, swing joint has the gleitbretter the other end of rotor shaft pass in proper order behind baffle, back shroud and the rotor inside lining with coupling assembling is connected.
2. A new rotor sliding vane pump as claimed in claim 1 wherein said connection assembly includes a thread stop.
3. A new rotor sliding vane pump as claimed in claim 1 wherein said connection assembly includes a spring clip.
4. A new rotor sliding vane pump as claimed in claim 3 wherein said connection assembly includes a front end cover.
5. A new rotor sliding vane pump according to claim 3, characterized in that said connection assembly comprises bearings.
6. A novel rotor sliding vane pump as claimed in claim 5, characterized in that said bearings comprise rolling bearings, sliding bearings.
7. The sliding vane pump as claimed in claim 5, wherein a cover plate is disposed on the pump body or the opening, and a stator is disposed between the rear cover and the cover plate for driving the rotor to rotate.
8. The sliding vane pump as claimed in claim 7, wherein the cover plate of the motor is disposed on the pump body by interference fit or screw connection.
9. The novel rotor sliding vane pump as claimed in claim 1, wherein the baffle is an elastic baffle with elasticity.
10. A novel rotor sliding vane pump according to any one of claims 1-9, characterized in that the rotor liner is integrally arranged on the inner wall of the pump body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020249192.0U CN212003569U (en) | 2020-03-04 | 2020-03-04 | Novel rotor sliding vane pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020249192.0U CN212003569U (en) | 2020-03-04 | 2020-03-04 | Novel rotor sliding vane pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212003569U true CN212003569U (en) | 2020-11-24 |
Family
ID=73423991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020249192.0U Expired - Fee Related CN212003569U (en) | 2020-03-04 | 2020-03-04 | Novel rotor sliding vane pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212003569U (en) |
-
2020
- 2020-03-04 CN CN202020249192.0U patent/CN212003569U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211231 Address after: 215000 room 3101, plant 3, No. 41, Jiangpu Road, Suzhou Industrial Park, Jiangsu Province Patentee after: Tuwabi electromechanical (Suzhou) Co.,Ltd. Address before: Room 145, Boji Shengneng Science Park, No.1 Heshun Road, Suzhou Industrial Park, 215000, Jiangsu Province Patentee before: Suzhou Skyland Intelligent Technology Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201124 |