CN108223363A - A kind of centering type liquid pump - Google Patents
A kind of centering type liquid pump Download PDFInfo
- Publication number
- CN108223363A CN108223363A CN201711486141.9A CN201711486141A CN108223363A CN 108223363 A CN108223363 A CN 108223363A CN 201711486141 A CN201711486141 A CN 201711486141A CN 108223363 A CN108223363 A CN 108223363A
- Authority
- CN
- China
- Prior art keywords
- liquid
- shaft
- housing
- partition plate
- block
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/40—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C2/08 or F04C2/22 and having a hinged member
- F04C2/44—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C2/08 or F04C2/22 and having a hinged member with vanes hinged to the inner member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to liquid pump field more particularly to a kind of centering type liquid pumps.Pump core axis is rotated backward from inlet to liquid outlet list, so that three groups of partition plates in shaft, it is rotated every liquid block, since shaft is in eccentric position, when leading to housing and shaft distance most short side every liquid block, it is constantly in closed state, when turning over most short side, a spring makes slowly to open every liquid block outside, it is tangent state to keep with shell inner surface, partition plate every the space that liquid block is formed with slowly becoming larger, so that liquid is flowed into from inlet in housing, when when liquid block turns to housing and shaft distance is maximum, partition plate and the space hold-up formed every liquid block, behind this position, liquid is discharged from liquid outlet, thus circulation action, the effect of realizing liquid pump, and due to the effect for opening spring outside, driving force can be effectively reduced；When the load of liquid pump itself is larger, outer spring contraction can be forced, realizes that inlet is connected with liquid outlet, realizes pressure release.
Description
Technical field
The present invention relates to liquid pump field more particularly to a kind of centering type liquid pumps.
Background technology
At present, pump is the machine for the energy for the mechanical energy of prime mover being converted to liquid.Prime mover passes through pump shaft band movable vane
Wheel rotation to liquid work done, increases its energy, so as to the place for liquid being made to be transported to eminence or requirement has pressure.
Pump is mainly used to convey the liquid such as water, oil, acid ＆ alkali liquid, emulsion, suspended emulsion and liquid metal, can also convey liquid,
Gas mixture and the liquid containing suspended solids, but conventional pump configuration is relative complex, and power resources are exactly that motor is done
Work(, when operating pressure is larger, impeller will not carry out overload protection, cause pump service life shorten.
Invention content
The technical problems to be solved by the invention are to provide a kind of centering type liquid pump, and solution power resources are single, impeller
The problem of will not carrying out overload protection.
The technical solution that the present invention solves above-mentioned technical problem is as follows：A kind of centering type liquid pump, including cylindrical shell
Body and the pump core axis being eccentrically set in above-mentioned housing and the inlet and liquid outlet that are arranged in housing sidewall：
The pump core axis includes shaft and at least three groups of partition plates, every liquid block, and each partition plate side is arranged at
It is described to be hinged every liquid block side and the partition plate opposite side in the shaft, it the partition plate and described is set between liquid block
Be equipped with and drive the outer spring every outside liquid block, it is described after liquid block opening with the length of the partition plate and being more than
Equal to the shaft to the maximum distance of the shell inner surface, the maximum gauge every liquid block is less than or equal to the shaft extremely
The minimum range of the shell inner surface；
The length direction of the shaft along the housing is rotatably provided in the enclosure interior, and the shaft both ends can turn
The dynamic both ends for being arranged on the housing, the center of circle that the axle center of the shaft is arranged on any round section of the shell are little
At 1/6th positions of the circle section diameter.
Further, the partition plate and there are three being respectively provided with every liquid block, the angle between the partition plate is described into 120 °
Inlet and liquid outlet are separately positioned on the housing in the shaft (2) apart from the housing shortest distance position
Both sides.
Further, the axle center of the shaft is arranged on 1/3rd of any one diameter on the circle section of the shell
Put place.
Further, it is provided with first connecting portion on the partition plate, it is described every being provided with second connecting portion on liquid block, it is described
First connecting portion is hinged with the second connecting portion, and the first connecting portion is that the gaps such as continuous are convex with the second connecting portion
Play shape.
Further, the partition plate is platy structure, described annular for fan every liquid block.
Further, the housing includes cylindrical side wall and two end caps, and two end caps are formed with the side wall
Airtight cavity structure, the end cap are connected with side wall closing, and the shaft both ends are rotatably provided in respectively described in two
On end cap.
Further, the shaft both ends are rotatably provided in by bearing respectively on two end caps.
Further, the outer spring one end is fixed in shaft, and the outer spring other end is fixed at
It is described every on the inner surface of liquid block, the outer spring is oppositely arranged along the shaft length.
Further, the partition plate is hinged with described every liquid block by axis, and the outer spring is set in the axis
On, the outer spring one end is fixed on the partition plate, the outer spring other end be fixed at it is described every
Liquid block is on the side surface where articulated position.
The present invention provides a kind of centering type liquid pump, including cylindrical housing and the pump being eccentrically set in above-mentioned housing
Mandrel and the inlet and liquid outlet being arranged in housing sidewall：
The pump core axis includes shaft and at least three groups of partition plates, every liquid block, and three partition plate sides are arranged at
It is described to be hinged every liquid block side and the partition plate opposite side in the shaft, the partition plate and it is described between liquid block lead to
Cross outer spring connection, it is described after liquid block opening with the length of the partition plate and more than or equal to the shaft to described
The maximum distance of shell inner surface, the maximum gauge every liquid block be less than or equal to the shaft to the shell inner surface most
Small distance；
The length direction of the shaft along the housing is rotatably provided in the enclosure interior, and the shaft both ends can turn
The dynamic both ends for being arranged on the housing, the center of circle that the axle center of the shaft is arranged on any round section of the shell are little
At 1/6th positions of the circle section diameter.
In this way, pump core axis is rotated backward from inlet to liquid outlet list so that three groups of partition plates in shaft turn every liquid block
It moves up, since shaft is in eccentric position, leads to housing with, every liquid block, being constantly in closure during shaft distance most short side
State, when turning over most short side, a spring makes slowly to open every liquid block outside, and it is tangent state to keep with shell inner surface, point
Room plate every the space that liquid block is formed with slowly becoming larger so that liquid is flowed into from inlet in housing, when turning to shell every liquid block
When body and shaft distance are maximum, partition plate and the space hold-up formed every liquid block, behind this position, liquid is from going out liquid
The effect of mouth is discharged, thus circulation action, realization liquid pump, and due to the effect for opening spring outside, driving can be effectively reduced
Power；When the load of liquid pump itself is larger, outer spring contraction can be forced, realizes that inlet is connected with liquid outlet, realization is let out
Pressure.It this have the advantage that in terms of existing technologies：Simple in structure, outer spring effect can reduce the effect of driving force,
Energy consumption is reduced, while liquid pump itself has overload protection, effectively extends the service life of liquid pump.
Description of the drawings
Fig. 1 is a kind of overall structure perspective view of centering type liquid pump of the present invention；
Fig. 2 is a kind of longitudinal cross-section schematic diagram of centering type liquid pump of the present invention；
Fig. 3 is for a kind of partition plate of centering type liquid pump of the present invention and every liquid block link position schematic diagram；
Fig. 4 is a kind of locellus plate structure schematic diagram of centering type liquid pump of the present invention；
Fig. 5 is a kind of outer spring scheme of installation of centering type liquid pump of the present invention.
In attached drawing, parts list represented by the reference numerals are as follows：
1st, housing, 101, side wall, 102, end cap, 2, shaft, 3, partition plate, 4, every liquid block, 5, first connecting portion, 6, second
Connecting portion, 7, bearing, 8, inlet, 9, liquid outlet, 10, axis, 11, open spring outside.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
In the description of the present invention, it is to be understood that term " on ", " under ", " " center ", " interior ", " outer ", " top ",
The orientation or position relationship of instructions such as " bottoms " are based on orientation shown in the drawings or position relationship, are for only for ease of and describe this hair
It is bright to have specific orientation, with the device for simplifying description rather than instruction or hint meaning or element with specific orientation
Construction and operation, therefore be not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As Figure 1-Figure 5, the present invention provides a kind of centering type liquid pump, including cylindrical housing 1 and eccentric setting
Pump core axis in above-mentioned housing 1 and the inlet 8 and liquid outlet 9 being arranged on the side wall 101 of housing 1：
The pump core axis includes shaft 2 and at least three groups of partition plates 3, every liquid block 4, and each 3 side of partition plate is all provided with
Put in the shaft 2, it is described to be hinged every 4 side of liquid block and 3 opposite side of partition plate, the partition plate 3 with it is described every liquid
Be provided between block 4 and drive 11 elasticity of outer spring every outside liquid block 4, it is described after the opening of liquid block 4 with the locellus
The length of plate 3 and more than or equal to the shaft 2 to the maximum distance of 1 inner surface of housing, the maximum gauge every liquid block 4
Less than or equal to the shaft 2 to the minimum range of 1 inner surface of housing；
The length direction of the shaft 2 along the housing 1 is rotatably provided in inside the housing 1,2 both ends of shaft
The both ends of the housing 1 are rotatably provided in, the axle center of the shaft 2 is arranged on the circle on any round section of the shell
The heart is not more than at 1/6th positions of the circle section diameter.
In this way, pump core axis is singly rotated backward from inlet 8 to liquid outlet 9 so that three groups of partition plates 3 in shaft 2, every liquid
Block 4 rotates, since shaft 2 is in eccentric position, when leading to housing 1 and shaft 2 apart from most short side every liquid block 4, one
Directly in closed state, when turning over most short side, a spring 11 makes slowly to open every liquid block 4 outside, keeps and 1 inner surface of housing
For tangent state, partition plate 3 every the space that liquid block 4 is formed with slowly becoming larger so that and liquid is flowed into from inlet 8 in housing 1,
When turning to housing 1 and shaft 2 apart from maximum every liquid block 4, partition plate 3 and the space hold-up formed every liquid block 4, warp
The effect of after crossing this position, liquid is discharged from liquid outlet 9, thus circulation action, realization liquid pump.
It should be noted that：End set has bulge-structure to partition plate 3 on the outside, and setting bulge-structure can further hinder
Only liquid circulates in partition plate 3 and every liquid block link position.
The centering type liquid pump of the present invention, as Figure 1-Figure 5, on the basis of the technical solution described in front can be with
It is：The partition plate 3 and there are three being respectively provided with every liquid block 4, the angle between the partition plate 3 is into 120 °, 8 He of inlet
Liquid outlet 9 is separately positioned on the housing 1 in the shaft 2 apart from the both sides of 1 shortest distance position of housing.This
Sample sets three groups of room plates and every liquid block 4, and the angle formed between partition plate 3 is 120, when inlet 8 and liquid outlet 9
When line is not parallel to the axis of shaft 2, it can just ensure effective work of inlet 8 and liquid outlet 9, to ensure liquid pump
Working efficiency.Further preferred technical solution is：The axle center of the shaft 2 is arranged on any one on the circle section of the shell
At 1/3rd positions of diameter.In this way, the axle center of shaft 2 is arranged on three of any one diameter on the circle section of shell
At/mono- position, cavity when liquid block 4 is in closure and opening, formed with housing 1, partition plate 3 can be effectively ensured
Can minimum saturation to maximum capacity change, ensure that entire liquid pump keeps maximum efficiency at work.
It should be noted that：The line in inlet 8 and 2 axle center of shaft is with shaft 2 apart from straight where 1 shortest distance of housing
Angle between line, the line and shaft 2 in 2 axle center of liquid outlet 9 and shaft are between the straight line where 1 shortest distance of housing
When angle is not less than 15 °, the liquid inlet volume of inlet 8 is effectively ensured, reaches the peak efficiency of pump.Further preferred technical side
Case is：The inlet 8 and liquid outlet 9 are strip gab, and the arranged direction of the inlet 8 and liquid outlet 9 is the shell
Length direction.
The centering type liquid pump of the present invention, as Figure 1-Figure 5, on the basis of the technical solution described in front can be with
It is：First connecting portion 5 is provided on the partition plate 3, described every being provided with second connecting portion 6 on liquid block 4, described first connects
Portion 5 is hinged with the second connecting portion 6, and the first connecting portion 5 is the gaps protrusion such as continuous with the second connecting portion 6
Shape.In this way, in order to ensure the seal of first connecting portion 5 and 6 hinged place of second connecting portion, connect in first connecting portion 5 and second
6 articulated position of socket part is provided with gasket, and gasket uses silica gel material, in subgasket edges position and the periphery of articulated position
Closing connection, to ensure the closure of articulated position.Further preferred technical solution is：The partition plate 3 is platy structure,
It is described annular for fan every liquid block 4.In this way, fan annular when liquid block 4 is in most short position, every liquid block 4 inner surface can with turn
Axis 2 overlaps completely, and outer surface keeps tangent with 1 inner surface of housing.It should be noted that：First connecting portion 5 and second connecting portion 6
It is connected by axis 10, first connecting portion 5 and second connecting portion 6 can be rotated around axis 10.
The centering type liquid pump of the present invention, as Figure 1-Figure 5, on the basis of the technical solution described in front can be with
It is：The housing 1 includes cylindrical side wall 101 and two end caps 102, two end caps 102 are formed with the side wall 101
Airtight cavity structure, the end cap 102 are connected with the side wall 101 closing, and 2 both ends of shaft are rotatably provided in two respectively
On a end cap 102.In this way, end cap 102 can set sealing ring to ensure end cap 102 and side with 101 link position of side wall
The connection seal on side.Further preferred technical solution is：2 both ends of shaft are rotatably provided in respectively by bearing 7
On two end caps 102.In this way, setting bearing 7 can effectively reduce the pivoting friction between shaft 2 and end cap 102.It needs
What is illustrated is a bit：To ensure every closure of the liquid block 4 in 102 position of end cap, the means that the application takes are every 4 He of liquid block
The both ends of partition plate 3 are both provided with the brush partition board of silica gel preparation, to ensure the closure of 102 position of end cap.
The centering type liquid pump of the present invention, as Figure 1-Figure 5, on the basis of the technical solution described in front can be with
It is：Outer 11 one end of spring is fixed in shaft, and outer 11 other end of spring is fixed at described every liquid
On the inner surface of block 4, the outer spring 11 is oppositely arranged along the shaft length.In this way, in order to prevent outer spring 11 with
It interferes, can be existed with guarantee every liquid block 4 every the groove that outer spring 11 of receiving is opened up on 4 inner surface of liquid block every liquid block 4
Inwardly during return, it will not be interfered with a spring 11 outside；The outer spring 11 is oppositely arranged along the shaft length, can
Outer spring 11 is effectively ensured when shrinking work, will not be broken every liquid block 4.
The centering type liquid pump of the present invention, as Figure 1-Figure 5, on the basis of the technical solution described in front can be with
It is：The partition plate 3 is with described hinged by axis 10 every liquid block 4, and the outer spring 11 is set on the axis 10, institute
Outer 11 one end of spring is stated to be fixed on the partition plate 3, outer 11 other end of spring be fixed at it is described every
Liquid block 4 is on the side surface where articulated position.In this way, with reference to the above, the first connecting portion 5 is connect with described second
Portion 6 is the gaps convex such as continuous, and outer spring 11 is arranged on the raised position of first connecting portion 5 and the second connecting portion 6
Put junction, it is possible to understand that, in order to open the more preferable installation of spring 11 outside, it can be set in raised position junction and accommodate outer
The space of spring 11.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of centering type liquid pump, it is characterised in that：Including cylindrical housing (1) and it is eccentrically set on above-mentioned housing (1)
Interior pump core axis and the inlet (8) being arranged on the side wall (101) of housing (1) and liquid outlet (9)：
The pump core axis includes shaft (2) and at least three groups of partition plates (3), every liquid block (4), each partition plate (3) side
It is arranged in the shaft (2), described hinged every liquid block (4) side and the partition plate (3) opposite side, the partition plate
(3) and described be provided between liquid block (4) drives outer spring (11) elasticity opened outside every liquid block (4), described every liquid
After block (4) opening with the length of the partition plate (3) and more than or equal to the shaft (2) the extremely housing (1) inner surface most
Big distance, the maximum gauge every liquid block (4) are less than or equal to the shaft (2) to the most narrow spacing of the housing (1) inner surface
From；
The length direction of shaft (2) along the housing (1) is rotatably provided in the housing (1) inside, the shaft (2)
Both ends are rotatably provided in the both ends of the housing (1), and the axle center of the shaft (2) is arranged on cuts apart from any circle of the shell
The center of circle on face is not more than at 1/6th positions of the circle section diameter.
2. centering type liquid pump according to claim 1, it is characterised in that：It the partition plate (3) and is all provided with every liquid block (4)
There are three putting, into 120 °, the inlet (8) and liquid outlet (9) are separately positioned on described the angle between the partition plate (3)
Housing (1) is in the shaft (2) apart from the both sides of the housing (1) shortest distance position.
3. centering type liquid pump according to claim 2, it is characterised in that：The axle center of the shaft (2) is arranged on described
On the circle section of shell at 1/3rd positions of any one diameter.
4. centering type liquid pump according to claim 1, it is characterised in that：The first company is provided on the partition plate (3)
Socket part (5), described every being provided with second connecting portion (6) on liquid block (4), the first connecting portion (5) and the second connecting portion
(6) hinged, the first connecting portion (5) is the gaps convex such as continuous with the second connecting portion (6).
5. centering type liquid pump according to claim 4, it is characterised in that：The partition plate (3) is platy structure, described
It is annular for fan every liquid block (4).
6. according to the centering type liquid pump described in claim 1-5 any one, it is characterised in that：The housing (1) is including circle
The side wall (101) of cylindricality and two end caps (102), two end caps (102) form airtight cavity knot with the side wall (101)
Structure, the end cap (102) connect with the side wall (101) closing, and shaft (2) both ends are rotatably provided in two institutes respectively
It states on end cap (102).
7. centering type liquid pump according to claim 6, it is characterised in that：Shaft (2) both ends pass through bearing (7) point
It is not rotatably provided on two end caps (102).
8. according to the centering type liquid pump described in claim 1-5 any one, it is characterised in that：The outer spring (11) one
End is fixed in shaft, and outer spring (11) other end is fixed at described every on the inner surface of liquid block (4), institute
It is oppositely arranged along the shaft length to state outer spring (11).
9. according to the centering type liquid pump described in claim 1-5 any one, it is characterised in that：The partition plate (3) and institute
It states and is hinged every liquid block (4) by axis (10), the outer spring (11) is set on the axis (10), the outer spring
(11) one end is fixed on the partition plate (3), and outer spring (11) other end is fixed at described every liquid block
(4) on the side surface where articulated position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711486141.9A CN108223363A (en) | 2017-12-29 | 2017-12-29 | A kind of centering type liquid pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711486141.9A CN108223363A (en) | 2017-12-29 | 2017-12-29 | A kind of centering type liquid pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108223363A true CN108223363A (en) | 2018-06-29 |
Family
ID=62646453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711486141.9A Pending CN108223363A (en) | 2017-12-29 | 2017-12-29 | A kind of centering type liquid pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108223363A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB263127A (en) * | 1925-12-15 | 1927-03-31 | Albert Thoreau | Improvements in or relating to vane pumps or compressors |
| GB2169965A (en) * | 1985-01-18 | 1986-07-23 | Pierburg Gmbh & Co Kg | Rotary vane pump |
| GB2169966A (en) * | 1985-01-18 | 1986-07-23 | Pierburg Gmbh & Co Kg | Rotary vane pump |
| JPH09236018A (en) * | 1996-08-02 | 1997-09-09 | Yuzo Fujieda | Supercharger |
| CN201165978Y (en) * | 2008-01-21 | 2008-12-17 | 任国明 | Rotary petal type compressor |
-
2017
- 2017-12-29 CN CN201711486141.9A patent/CN108223363A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB263127A (en) * | 1925-12-15 | 1927-03-31 | Albert Thoreau | Improvements in or relating to vane pumps or compressors |
| GB2169965A (en) * | 1985-01-18 | 1986-07-23 | Pierburg Gmbh & Co Kg | Rotary vane pump |
| GB2169966A (en) * | 1985-01-18 | 1986-07-23 | Pierburg Gmbh & Co Kg | Rotary vane pump |
| JPH09236018A (en) * | 1996-08-02 | 1997-09-09 | Yuzo Fujieda | Supercharger |
| CN201165978Y (en) * | 2008-01-21 | 2008-12-17 | 任国明 | Rotary petal type compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2016184404A1 (en) | Ultra-high speed blower | |
| WO2016184405A1 (en) | Miniature blower | |
| CN110052342A (en) | A kind of rechargeable amphibious jetting machine of water proof type | |
| CN106014971A (en) | Large-flow eccentric rotary grouting pump and application method thereof | |
| CN108223363A (en) | A kind of centering type liquid pump | |
| CN209709820U (en) | A kind of motor with water-proof function spliced shell | |
| CN205064270U (en) | Novel plastics vacuum pump blade and vacuum pump | |
| CN210461787U (en) | Control valve | |
| CN205064272U (en) | There is not outer vanes pump that leaks | |
| CN109083931A (en) | A kind of connection structure of water-sealed bearing | |
| CN203624411U (en) | Magnetic seal discharging valve | |
| CN204400184U (en) | A kind of baiting valve of vertical setting | |
| CN208364526U (en) | A kind of valve plate of sliding-vane motor | |
| CN208918954U (en) | A kind of spiral swing hydranlic pressure jar | |
| CN209195695U (en) | A kind of pump body structure extending oil-sealing arrangement service life | |
| CN207892660U (en) | A kind of gland sealing device for steam turbine | |
| CN207349461U (en) | A kind of valve with triangle seal configuration of adjustable easy care | |
| CN214304386U (en) | Enclosed leakproof wear-resistant auxiliary impeller of slurry pump | |
| CN205064269U (en) | Vacuum pump blade and vacuum pump that contain spring | |
| CN220748446U (en) | Novel movable vane type hydraulic motor | |
| CN205349770U (en) | High -efficient magnetic drive pump | |
| CN213064736U (en) | Double-seal valve core component | |
| CN216617981U (en) | Sealing structure of converter gas blower | |
| CN209370150U (en) | A kind of double leaf road impeller assembly and Pulp pump | |
| CN215370336U (en) | Mechanical sealing device for multistage pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180629 |
|
| RJ01 | Rejection of invention patent application after publication |