CN201627760U - Plastic centrifugal pump - Google Patents
Plastic centrifugal pump Download PDFInfo
- Publication number
- CN201627760U CN201627760U CN2010201218275U CN201020121827U CN201627760U CN 201627760 U CN201627760 U CN 201627760U CN 2010201218275 U CN2010201218275 U CN 2010201218275U CN 201020121827 U CN201020121827 U CN 201020121827U CN 201627760 U CN201627760 U CN 201627760U
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- Prior art keywords
- pump
- plastic centrifugal
- bolt
- centrifugal pump
- nut
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- Expired - Fee Related
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Abstract
The utility model relates to the improvement of a plastic centrifugal pump, which is characterized in that a nut and/or a bolt is embedded in a metal skeleton, a bolt and/or a nut connected axially is directly screwed with the nut and/or the bolt embedded in the metal skeleton to form a combined connection. The plastic centrifugal pump solves the defect that clamp bolt is externally exposed so as not to resist corrosion, and also avoids the use of metal clamping plates on both sides of the pump so that the assembly and maintenance of the plastic centrifugal pump are simpler and more convenient. An axial support ring, connected with a pump case skeleton, of a pump liquid-discharging port section enables various stresses generated by external upper pipelines, such as thermal-expansion cold-contraction deformation stress, pipeline stress, pull, torsion and the like, to be transferred via the axial support ring to the pump case metal skeleton with strong toleration, thereby effectively protecting the outlet connecting section of the plastic pump, lessening the damage to the pump liquid-discharging port section, greatly enhancing the mechanical stability of pump, completely overcoming a variety of defects of full-plastic centrifugal pump and accordingly prolonging effective service life, in addition, the full-plastic centrifugal pump with the diameter of outlet pipe not less than 100mm can be manufactured.
Description
Technical field
Model utility is about the improvement to plastic centrifugal pump, especially to claimant formerly further the improving and improve of patent 200920006095.2,200920037660.1, particularly the combination connecting arrangement of pump.
Background technique
Existing all-plastic centrifugal pump, its basic structure as shown in Figure 1, by the pump cover 1 and the pump case 2 of plastics, turnbuckle 4 assembles between the axial both sides of pump case rigidity (for example metal) clamping plate 3.1 and 3.2, two clamping plate.Back claimant is patent 200920006095.2 and 200920037660.1 all-plastic centrifugal pumps formerly, respectively pump case and top pump discharge joint are improved, overcome combination easy axial deformation of pump case of all-plastic centrifugal pump and the not anti-tension of pump discharge linkage section and measuring body two big deficiencies.But pump case, pump cover axially combination still are the outer bolt clamping arrangement.Outer bolt clamps, and clamping bolt exposes to the open air in the pump case periphery, is carrying the Korrosionsmedium place to use, and can cause the corrosion corrosion of clamping bolt to damage, and the corrosion corrosion easily makes bolt, nut kill to cause the dismounting difficulty; Secondly, outer bolt clamps need add the forward and backward clamping plate of metal in addition, has increased manufacture cost, and makes pump weight increase, and has also increased cost of transportation; Besides, this combined connecting structure, component count is many, and spare part and assembling, dismounting maintenance be trouble also.Therefore still having is worth improved place.
The model utility content
The model utility purpose is to overcome the deficiency of above-mentioned prior art, and it is few to provide a kind of assembling clamping bolt to expose, and combine component quantity is few, and low cost of manufacture is easy to assembly, and is easy to maintenance, the plastic centrifugal pump that Acceptable life is long.
The model utility purpose realizes, the main improvement is that the plastic shell pump is buried axial pressure-bearing metal skeleton underground and is provided with internal thread and/or bolt, combination clamping bolt and/or nut directly are rotatably connected on the interior pressure-bearing skeleton of pump case, formation is with respect to the internal fixation linkage structure of prior art, thereby overcome the deficiencies in the prior art, realize the model utility purpose.Specifically, the model utility plastic centrifugal pump, comprise that pump case week face thickness face buries the overall plastic pump case of axial pressure-bearing metal skeleton underground, and axial connecting bolt, it is characterized in that burying underground nut and/or bolt are arranged on the metal frame, axially connecting bolt and/or the nut nut and/or the bolt shape that directly are rotatably connected in metal frame becomes to be connected.
The said combination all-plastic of model utility pump case is to be formed by the plastics compacting, according to the pump case size, can be two combinations of plastics pump case of front pump cover, band rear pump cover, also can be front pump cover, line pump volute, three combinations of rear pump cover.The interior axially liner pressure-bearing metal skeleton of pump case week face thickness, main effect and structure are as the claimant formerly as described in the patent 200920006095.2, provide the anti-compression of a rigidity to support to axial clamping force when pump is assembled clamping, the plastics pump case produces permanent compressive strain when compressing thereby minimizing is assembled.Axial pressure-bearing support metal skeleton, its form can have multiple, and they can be to be embedded in the pump case side face plastic layer, also can be for example wrapping up form, and in plastics pump case periphery, detailed structure has description 200920006095.2, just repeats no more at this.The model utility metal frame is determined in test, and the mouse cage circle that is welded to form with axial alternate Twisted Steel is excellent especially, and the interlock of Twisted Steel and plastics is good, is difficult for separating with plastics as liner.When being connected, according to plastics hardness and thickness difference, and grey size etc., can also place bolt position as required, outer if be embedded with the rigidity pressure part, for example ring thinks that the turnbuckle head provides hard supporting.
In addition, because metal splint before and after omitting, can bear the drawing of external pipeline, pressure for making pump liquid outlet section, can be in pump liquid outlet section axially embedded or outside be covered with the metal frame of band transverse flange ring, and this metal frame is connected with the pump case metal frame, constitute force structure.The liquid outlet section, be connected externally connected pipe by the Hough involutive ring with the lap joint flange assembly, from the various stress of the external pipeline of pump discharge, then be passed to the pump case metal frame, thereby alleviate or eliminate stress and active force, reach the claimant and formerly apply for a patent 200920037660.1 described effects plastics fluid pipeline section.Wherein a kind of Steel Support that is preferably pump liquid outlet section axial zone flange ring, also the mouse cage ring that is welded to form for Deformed Steel Bars.
The model utility plastic centrifugal pump, owing to adopt said structure, thereby the peripheral hardware clamping bolt is changed into the interconnect structure that directly is connected with the axial pressure-bearing metal skeleton of pump case liner, than prior art all-plastic centrifugal pump, solve clamping bolt and exposed not corrosion resistant shortcoming, and omitted pump both sides metal splint, make assembling, maintenance also easier.The axially support ring that pump liquid outlet section is connected with the pump case skeleton; the various stress that make external upper pipeline generation; distortional stress, pipeline weight power, pulling force, distortion power etc. for example expand with heat and contract with cold; can pass to the strong pump case metal frame of tolerance by this axially support ring; thereby effectively protected plastic pump outlet linkage section; alleviated injury, greatly improved the mechanical stability of pump machine, can prepare the overall plastic centrifugal pump of outlet caliber 〉=100mm pump liquid outlet section.This structure has also been stablized the outer Conncetion cimension of pump simultaneously, has made things convenient for installation.There is deficiency in the model utility plastic centrifugal pump owing to solved prior art, has overcome the many disadvantages of all-plastic centrifugal pump fully, thereby has prolonged Acceptable life.
Below in conjunction with two specific embodiments; model utility is further understood in exemplary illustration and help; but embodiment's detail only is for model utility is described; do not represent model utility design whole technological schemes down; therefore should not be construed as the total technological scheme of model utility is limited; some are In the view of the technician, do not depart from the unsubstantiality of model utility design and change. and for example change or replace, all truely use novel protected scope so that technical characteristics with same or similar technique effect is simple.
Description of drawings
Fig. 1 is a prior art all-plastic centrifugal pump structure schematic representation.
Fig. 2 is first embodiment's plastic centrifugal pump structural representation.
Fig. 3 is that the plastic pump columella is to a kind of pressure-bearing support ring structural representation.
Fig. 4 is second embodiment's plastic centrifugal pump structural representation.
Fig. 5 is Fig. 4 A-A sectional structure schematic representation.
Embodiment
Embodiment 1: referring to Fig. 2,3, the model utility plastic centrifugal pump, comprise moulded plastic front pump cover 1, the moulded plastic pump case 2 of band rear pump cover, metal pressure-bearing support ring 5 is axially arranged in its thickness face, wherein metal supporting rings 5 border reinforcing bars are Twisted Steel 5.3, and metal pressure-bearing support ring 5 rear and front end faces respectively have some screws 5.1 and 5.2.With front pump cover 1, pump case 2 combinations, place eyelet 7 by package assembly in the front pump cover front side, front pump cover connecting bolt 8.1 reaches rear side bearing bracket stand connecting bolt 8.2, sealing case connecting bolt 8.3, and the screw with metal supporting rings 5 front and back is spirally connected respectively.
Embodiment 2: referring to Fig. 4,5, as embodiment 1, in liquid outlet section 6 thickness of pump plastic tape flange edge or the outside wherein, embedded or be compounded with ringle as example 1 bearing ring, ringle is welded to form with eyelet 10 by vertical Twisted Steel 9, and each vertical Twisted Steel 9 is welded to connect with the interior metal pressure-bearing support ring 5 of pump case.During assembling top external pipeline 13, earlier lap joint flange 12 is placed in the liquid outlet section, under liquid outlet section 6 flanges, installs involutory Half ring 11 additional, with the banjo clip stressed joint of clamping bolt 14 with connecting tube 13.
To those skilled in the art; under this patent design and embodiment's enlightenment; some distortion that can directly derive or associate from this patent disclosure and general knowledge; or the substituting of known technology commonly used in the prior art; and the mutual various combination between feature; for example the plastics rear pump cover separates with pump case; axial stiffness pressure-bearing supporting element can also adopt as pressure-bearing support ring as described in the patent 200920006095.2 formerly and change; external pipeline Placement changes; or the like unsubstantiality change; can both realize and basic identical function of the foregoing description and effect, launch for example no longer one by one to describe in detail, all belong to this patent protection domain.
Claims (7)
1. plastic centrifugal pump, comprise that pump case week face thickness face buries the overall plastic pump case of axial pressure-bearing metal skeleton underground, and axial connecting bolt, it is characterized in that burying underground nut and/or bolt are arranged on the metal frame, axially connecting bolt and/or the nut nut and/or the bolt shape that directly are rotatably connected in metal frame becomes to be connected.
2. according to the described plastic centrifugal pump of claim 1, it is characterized in that burying underground in the pump case mouse cage circle that axial pressure-bearing metal skeleton is axial alternate Twisted Steel welding.
3. according to claim 1 or 2 described plastic centrifugal pumps, it is characterized in that pump liquid outlet section is axially embedded or be covered with the metal frame of being with the transverse flange ring outward, and this metal frame is connected with the pump case metal frame.
4. according to the described plastic centrifugal pump of claim 3, the Steel Support that it is characterized in that liquid outlet section axial zone flange ring is the mouse cage ring that Deformed Steel Bars is welded to form.
5. according to the described plastic centrifugal pump of claim 3, it is characterized in that pump liquid outlet section has the flange flange.
6. according to the described plastic centrifugal pump of claim 3, the placement bolt position that it is characterized in that being connected is outward if be embedded with the rigidity pressure part.
7. according to claim 4 or 5 described plastic centrifugal pumps, the placement bolt position that it is characterized in that being connected is outward if be embedded with the rigidity pressure part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201218275U CN201627760U (en) | 2010-03-01 | 2010-03-01 | Plastic centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201218275U CN201627760U (en) | 2010-03-01 | 2010-03-01 | Plastic centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201627760U true CN201627760U (en) | 2010-11-10 |
Family
ID=43059154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201218275U Expired - Fee Related CN201627760U (en) | 2010-03-01 | 2010-03-01 | Plastic centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201627760U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374199A (en) * | 2011-11-18 | 2012-03-14 | 宜兴市宙斯泵业有限公司 | Anticorrosive wear-resistant centrifugal pump volute casing |
| CN106246598A (en) * | 2015-06-12 | 2016-12-21 | 协磁股份有限公司 | The structure of PFA liner pump case |
| CN117212240A (en) * | 2023-09-20 | 2023-12-12 | 安徽凯润泵阀科技有限公司 | Self-priming centrifugal pump up-down assembled shell structure |
-
2010
- 2010-03-01 CN CN2010201218275U patent/CN201627760U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374199A (en) * | 2011-11-18 | 2012-03-14 | 宜兴市宙斯泵业有限公司 | Anticorrosive wear-resistant centrifugal pump volute casing |
| CN106246598A (en) * | 2015-06-12 | 2016-12-21 | 协磁股份有限公司 | The structure of PFA liner pump case |
| CN117212240A (en) * | 2023-09-20 | 2023-12-12 | 安徽凯润泵阀科技有限公司 | Self-priming centrifugal pump up-down assembled shell structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20101110 Termination date: 20190301 |