CN110056533A - A kind of impeller of chemical centrifugal pump locking device - Google Patents
A kind of impeller of chemical centrifugal pump locking device Download PDFInfo
- Publication number
- CN110056533A CN110056533A CN201910423371.3A CN201910423371A CN110056533A CN 110056533 A CN110056533 A CN 110056533A CN 201910423371 A CN201910423371 A CN 201910423371A CN 110056533 A CN110056533 A CN 110056533A
- Authority
- CN
- China
- Prior art keywords
- impeller
- gasket
- nut
- centrifugal pump
- locking device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000126 substance Substances 0.000 title claims abstract description 32
- 229920002313 fluoropolymer Polymers 0.000 claims abstract description 13
- 238000005260 corrosion Methods 0.000 claims abstract description 8
- 230000007797 corrosion Effects 0.000 claims abstract description 7
- 230000006835 compression Effects 0.000 claims abstract description 6
- 238000007906 compression Methods 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/20—Mounting rotors on shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2/00—Friction-grip releasable fastenings
- F16B2/005—Means to increase the friction-coefficient
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B33/00—Features common to bolt and nut
- F16B33/008—Corrosion preventing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
- F16B43/001—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts for sealing or insulation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of impeller of chemical centrifugal pump locking devices, including gasket (1), impeller nut (2), locking nut (3), it is socketed gasket (1) on the inside of the impeller nut (2) and is bonded with gasket (1) upper compressive, the lower part of gasket (1) compresses impeller assembly (4) upper end, it fits closely on the inside of the locking nut (3) and gasket (1) and fastens impeller nut (2), the output end of impeller assembly (4) and pump shaft, the head of the impeller nut (2) is fluoroplastic layer for preventing dielectric corrosion, the top surface of the gasket (1) is obliquely used to generate radial compression impeller nut (2) inner wall and locking nut (3) outer wall with respect to its inner face.The present invention takes full advantage of quiet, dynamic friction and characteristic of expanding with heat and contract with cold, thus the service life of increasing pump, changes conventional seals thinking, solves the problems, such as that impeller nut falls off, and is greatly saved user increased production cost production efficiency.
Description
Technical field
The present invention relates to chemical equipment technical field more particularly to a kind of impeller of chemical centrifugal pump locking devices.
Background technique
Fluoroplastics chemical pump is a kind of conveying corrosive media first choice chemical pump, especially conveying strong acid, highly basic, it is inflammable,
In the operating condition of explosive medium, effect is more prominent.Since the medium of conveying is special, so that the necessary anti-corrosion of flow passage components, institute
Fluoroplastics are necessary for the impeller nut with media contact, so when pump startup or the moment of closing, since inertia leads to impeller
Locknut Song Doudong, if the medium temperature of conveying is too low or too high, expands with heat and contract with cold, so that gasket deforms, it is easier to aggravate
The loosening of impeller nut falls off.To apply, family can not normally be produced, and must often be replaced accessory, be caused economic loss.
Number of patent application is a kind of 201610369734.6 impeller of chemical centrifugal pump locking device, including pump shaft and is socketed in pump
Impeller on axis, locking nut are threadedly coupled with the shaft end of pump shaft and compress impeller, the shaft end spiral shell of secondary locking nut and pump shaft
Line connects and compresses locking nut, and one end that locking nut compresses impeller is arranged skirt, it is fixed to be uniformly distributed circumferentially 7 nuts
Position pin hole, is uniformly distributed 9 impeller dowel holes, one of locking nut dowel hole and impeller on the corresponding circumference in impeller end face
The alignment of one of dowel hole, and fixed locking nut and impeller by positioning pin.Structure is complicated for the patent, uses excessive spiral shell
Female component uses for a long time, when start emergency stop or accelerate when be still easy to produce nut assembly loosening security risk or
Sealing problem.
Based on this, now it is badly in need of a kind of impeller nut that can solve and falls off problem and the service life that increases fluoroplastics chemical pump
Impeller of chemical centrifugal pump locking device.
Summary of the invention
Technical problem to be solved by the present invention lies in provide one kind can solve impeller nut fall off problem and increase fluorine modeling
Expect the impeller of chemical centrifugal pump locking device of the service life of chemical pump.
The present invention solves above-mentioned technical problem using following technical scheme:
A kind of impeller of chemical centrifugal pump locking device, including gasket, impeller nut, locking nut, the impeller nut inside
Socket gasket simultaneously be bonded with gasket upper compressive, and the lower part of gasket compresses impeller assembly upper end, the locking nut and
The output end of impeller nut, impeller assembly and pump shaft, the head of the impeller nut are fitted closely and fastened on the inside of gasket
It is fluoroplastic layer for preventing dielectric corrosion, the top surface of the gasket is oblique with respect to its inner face, for generating radial squeeze
Impeller nut inner wall and locking nut outer wall are pressed, rubbing between gasket and impeller nut inner wall and locking nut outer wall is increased
Wipe power.
As one of preferred embodiment of the invention, it is additionally provided with frictional layer on the impeller nut inner wall, is further increased close
Frictional force between packing and impeller nut inner wall, prevents impeller nut from falling off.
As one of preferred embodiment of the invention, the frictional layer with a thickness of 0.2-0.5mm.
As one of preferred embodiment of the invention, the top surface of the gasket is 1-3 ° with respect to the gradient of its inner face.
As one of preferred embodiment of the invention, the top surface of the gasket is 2 ° with respect to the gradient of its inner face.
As one of preferred embodiment of the invention, the locking nut, which is connected through a screw thread, to be fastened on impeller nut and leads to
The close packing of over-voltage improves frictional force, and the fastening direction of the locking nut and the rotation direction of impeller are opposite.
As one of preferred embodiment of the invention, the gasket lower part is set respectively with the position that is bonded of impeller assembly upper end
There is the first frictional groove of the first drag ring and Corresponding matching, the gasket top is bonded position with extruding on the inside of impeller nut
It is respectively equipped with the second frictional groove of the second drag ring and Corresponding matching.
As one of preferred embodiment of the invention, the gasket is in the tail portion offered among " hat shape " with impeller nut
The through-hole matched, the crown height of gasket and the inner wall depth of impeller nut match, and the cap inside depth of gasket is big
In gasket cap along thickness.
As one of preferred embodiment of the invention, the shape of the through-hole is regular hexagon through-hole, the impeller nut
Close to the matched outer-hexagonal type that head one end is that cooperation positions, rear end is shape of threads for tail portion.
The invention also discloses a kind of impeller of chemical centrifugal pump locking device, including gasket, impeller nut, locking nut, institutes
It states socket gasket on the inside of impeller nut and is bonded with gasket upper compressive, the lower part of gasket compresses impeller assembly upper end,
The output end of impeller nut, impeller assembly and pump shaft is fitted closely and fastened on the inside of the locking nut and gasket, it is described
The head of impeller nut is fluoroplastic layer for preventing dielectric corrosion, and the top surface of the gasket is relative to center in relatively raised
The inner face of shape and/or the gasket is in opposite convex relative to center, for generating radial compression impeller nut inner wall and lock
Tight nut outer wall.
The present invention compared with prior art the advantages of be: the present invention takes full advantage of quiet, dynamic friction and characteristic of expanding with heat and contract with cold,
To the service life of increasing pump, changes conventional seals thinking, solve the problems, such as that impeller nut falls off, the life of user is greatly saved
It produces cost and improves production efficiency.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the chemical pump of the present embodiment；
Fig. 2 is partial enlargement diagram of the impeller of chemical centrifugal pump locking device of the present embodiment in chemical pump；
Fig. 3 is the structural schematic diagram of the gasket of the present embodiment 1-4；
Fig. 4 is the top view of the gasket of the present embodiment 1-4；
Fig. 5 is the impeller nut structural schematic diagram of the present embodiment；
Fig. 6 is the structural schematic diagram of the gasket of embodiment 5.
Specific embodiment
It elaborates below to the embodiment of the present invention, the present embodiment carries out under the premise of the technical scheme of the present invention
Implement, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to following implementation
Example.
Embodiment 1
As shown in Figs. 1-5, a kind of impeller of chemical centrifugal pump locking device of the present embodiment, including gasket (1), impeller nut
(2), locking nut (3), impeller nut (2) inside socket gasket (1) is simultaneously bonded with gasket (1) upper compressive, close
The lower part of packing (1) compresses impeller assembly (4) upper end, fits closely and fastens on the inside of the locking nut (3) and gasket (1)
The output end of impeller nut (2), impeller assembly (4) and pump shaft, the head of the impeller nut (2) are fluoroplastic layer for preventing
Only dielectric corrosion, the top of the gasket (1) be equipped with certain oblique angle for generate radial compression impeller nut (2) inner wall and
Locking nut (3) outer wall increases the frictional force between gasket and impeller nut inner wall and locking nut outer wall, the present embodiment
Gasket at the top of have certain oblique angle, fastening when can squeeze impeller nut inner wall and locking nut outer wall, greatly
Strong rotation friction between them, when fluoroplastics chemical pump is in starting, shutdown, impeller nut by inertia force loosen can
Energy property reduces sharply, and plays fastening effect, and when the cryogenic media of conveying, gasket is shunk, and hard-pressed bale is rolled on locking nut.Work as conveying
When high-temperature medium, gasket expansion is close to impeller nut inner wall, plays fastening effect.
Embodiment 2
The present embodiment is substantially the same manner as Example 1, is in place of main difference, on impeller nut (2) inner wall also
Equipped with frictional layer (201), the frictional force between gasket and impeller nut inner wall is further increased, prevents impeller nut from falling off,
The frictional layer (201) with a thickness of 0.2-0.5mm, certain oblique angle is 1-3 °, and preferred certain oblique angle is
At 2 °, fastening effect is best.
Embodiment 3
The present embodiment is substantially the same manner as Example 1, is in place of main difference, the locking nut (3) passes through screw thread
Connection is fastened on impeller nut (2) and improves frictional force, the fastening side of the locking nut (3) by compressing gasket (1)
To with the rotation direction of impeller on the contrary, the gasket (1) lower part is respectively equipped with the position that is bonded of impeller assembly (4) upper end
The first frictional groove (401) of one drag ring (101) and Corresponding matching, gasket (1) top and impeller nut (2) inside
The second frictional groove (202) that fitting position is respectively equipped with the second drag ring (102) and Corresponding matching is squeezed, the present embodiment improves
Frictional force between locking nut and gasket, impeller assembly prevents its rotation from falling off.
Embodiment 4
The present embodiment is substantially the same manner as Example 1, is in place of main difference, and the gasket (1) is in " hat shape "
Between offer the through-hole matched with the tail portion of impeller nut (2), the crown height of gasket (1) is interior with impeller nut (2)
Wall depth matches, and the cap inside depth of gasket (1) is greater than the cap of gasket (1) along thickness, and the shape of the through-hole is positive
Hexagon through-hole, the tail portion of the impeller nut (2) are the matched outer-hexagonal type for cooperating positioning close to head one end, and rear end is
Shape of threads；The gasket shape and structure of the present embodiment can wrap up locking nut but also be bonded impeller nut inner wall, greatly reinforce
Leakproofness between them, and the positioning of regular hexagon through-hole prevents its relative rotation, and anti-dropout effect further strengthens.
Embodiment 5
Referring to shown in Fig. 1-2, Fig. 6: the invention also discloses a kind of impeller of chemical centrifugal pump locking device, including gasket (1),
Impeller nut (2), locking nut (3), on the inside of the impeller nut (2) socket gasket (1) and with gasket (1) upper compressive
Fitting, the lower part of gasket (1) compress impeller assembly (4) upper end, close patch on the inside of the locking nut (3) and gasket (1)
Merge the output end of fastening impeller nut (2), impeller assembly (4) and pump shaft, the head of the impeller nut (2) is fluoroplastics
For layer for preventing dielectric corrosion, the top surface of the gasket (1) is in opposite convex and/or the gasket (1) relative to center
Inner face relative to center be in opposite convex, for generating radial compression impeller nut (2) inner wall and locking nut (3) outer wall
Increase the frictional force between gasket and impeller nut inner wall and locking nut outer wall, the top surface of the gasket of the present embodiment or
Person's inner face is convex, can squeeze impeller nut inner wall and locking nut outer wall in fastening, greatly reinforce between them
Rotation friction, when fluoroplastics chemical pump is in starting, shutdown, a possibility that impeller nut is loosened by inertia force, is reduced sharply, and rises
To fastening effect, when the cryogenic media of conveying, gasket is shunk, and hard-pressed bale is rolled on locking nut.When conveying high-temperature medium,
Gasket expansion, is close to impeller nut inner wall, plays fastening effect.
Beneficial effects of the present invention and working principle: the improved impeller nut of the present invention and gasket structure are simple, peace
Dress is convenient, and anti-impeller nut falling-off effect is splendid since improved gasket close-fitting is in improved impeller nut inner wall, leaf
Impeller nut is fastened on pump shaft by wheel nut inner wall processing 0.2-0.5mm depth frictional layer after locking nut impeller locking
(improve gasket be put into impeller nut), top surface due to gasket with 2 ° of gradients or gasket and inner face in protrusion
Shape is fastened to finally, the reaction force of gasket increases, impeller nut inner wall frictional layer and locking nut outer wall greatly reinforce
Frictional resistance, fastening effect are increased sharply.When fluoroplastics chemical pump is in starting, shutdown, impeller nut and locking nut are by used
Property power loosen a possibility that reduce sharply, play fastening effect.When the cryogenic media of conveying, gasket is shunk, and hard-pressed bale is rolled in locking
On nut.When conveying high-temperature medium, gasket expansion is close to, in addition frictional groove with impeller nut inner wall, plays fastening and makees
With.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of impeller of chemical centrifugal pump locking device, which is characterized in that including gasket (1), impeller nut (2), locking nut
(3), it is socketed gasket (1) on the inside of the impeller nut (2) and is bonded with gasket (1) upper compressive, the lower part of gasket (1)
Compress impeller assembly (4) upper end, fit closely and fasten on the inside of the locking nut (3) and gasket (1) impeller nut (2),
The output end of impeller assembly (4) and pump shaft, the head of the impeller nut (2) are fluoroplastic layer for preventing dielectric corrosion,
The top surface of the gasket (1) is oblique with respect to its inner face, for generating radial compression impeller nut (2) inner wall and locking screw
Female (3) outer wall.
2. impeller of chemical centrifugal pump locking device according to claim 1, which is characterized in that on impeller nut (2) inner wall
It is additionally provided with frictional layer (201).
3. impeller of chemical centrifugal pump locking device according to claim 1, which is characterized in that the thickness of the frictional layer (201)
For 0.2-0.5mm.
4. impeller of chemical centrifugal pump locking device according to claim 1, which is characterized in that the top surface phase of the gasket (1)
Gradient to its inner face is 1-3 °.
5. impeller of chemical centrifugal pump locking device according to claim 4, which is characterized in that the top surface phase of the gasket (1)
Gradient to its inner face is 2 °.
6. impeller of chemical centrifugal pump locking device according to claim 1, which is characterized in that the locking nut (3) passes through spiral shell
Line connection is fastened on impeller nut (2) and improves frictional force, the fastening of the locking nut (3) by compressing gasket (1)
Direction is opposite with the rotation direction of impeller.
7. impeller of chemical centrifugal pump locking device according to claim 1, which is characterized in that gasket (1) lower part and leaf
The fitting position of wheel assembly (4) upper end is respectively equipped with the first frictional groove (401) of the first drag ring (101) and Corresponding matching,
Fitting position is squeezed on the inside of gasket (1) top and impeller nut (2) is respectively equipped with the second drag ring (102) and corresponding
Matched second frictional groove (202).
8. impeller of chemical centrifugal pump locking device according to claim 1, which is characterized in that the gasket (1) is in " hat shape "
Centre offers the through-hole matched with the tail portion of impeller nut (2), crown height and impeller nut (2) of gasket (1)
Inner wall depth matches, and the cap inside depth of gasket (1) is greater than the cap of gasket (1) along thickness.
9. impeller of chemical centrifugal pump locking device according to claim 8, which is characterized in that the shape of the through-hole is positive hexagonal
Shape through-hole, the tail portion of the impeller nut (2) are the matched outer-hexagonal type for cooperating positioning close to head one end, and rear end is screw thread
Shape.
10. a kind of impeller of chemical centrifugal pump locking device, which is characterized in that including gasket (1), impeller nut (2), locking nut
(3), it is socketed gasket (1) on the inside of the impeller nut (2) and is bonded with gasket (1) upper compressive, the lower part of gasket (1)
Compress impeller assembly (4) upper end, fit closely and fasten on the inside of the locking nut (3) and gasket (1) impeller nut (2),
The output end of impeller assembly (4) and pump shaft, the head of the impeller nut (2) are fluoroplastic layer for preventing dielectric corrosion,
The top surface of the gasket (1) is in that the inner face of convex and/or the gasket (1) relatively is in relative to center relative to center
Opposite convex, for generating radial compression impeller nut (2) inner wall and locking nut (3) outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910423371.3A CN110056533B (en) | 2019-05-21 | 2019-05-21 | Chemical pump impeller locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910423371.3A CN110056533B (en) | 2019-05-21 | 2019-05-21 | Chemical pump impeller locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110056533A true CN110056533A (en) | 2019-07-26 |
| CN110056533B CN110056533B (en) | 2024-04-09 |
Family
ID=67323874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910423371.3A Active CN110056533B (en) | 2019-05-21 | 2019-05-21 | Chemical pump impeller locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110056533B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486320A (en) * | 2019-08-15 | 2019-11-22 | 深圳市捷晶能源科技有限公司 | A kind of impeller fastener and conveying device, supercharging device |
| CN110848169A (en) * | 2019-12-19 | 2020-02-28 | 盐城海纳汽车零部件有限公司 | High stability cooling water pump |
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